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FILE NAME Armco ARM DATE 1937 Oct DOC ARM008 DOCUMENT DESCRIPTION Transactions of the National Safety Council UNIV UNIV =) UNIV t SAFETY EXHIBIT APG 50 : 50 TRANSACTIONS | : 26th ae National Safety Congress NATIONAL SAFETY COUNCIL Inc. ; mc f en wgern tel WAS + sf KANSAS CITY MISSOURI OCTOBER 11 to OCTOBER 15 1937 Municipal Auditorium . -. ; Copyright 1937 National Safety Council Inc. i t} v { eg Pe 4 i ) : CY Pe PRE AN ETO feted ee a 4 oreword 6 | u te te 1S ry l^' a) * Transctions Transactions Transctio Twenty Twenty oreword be Transctio1937 Congres , volumes contais genral S2z"*suonag re special twosubject , r rte e the volume contais Street Stret first e Safety Transit Sections Comercial eas es s ses published published This the seions Highway Sections Highway Sections suo te ces e industrial industrial TransitVolume of Council Council 7 | 0 y.] HOD 1 Of BOT A or sa1q etr est ce c reciv ee ee erct theTransctions Transctionsquotesudpervisocoyvers positon distrbugeenrdailstrbumtee- rJuy129NIUq 12m0qgdoys copies mebersthe Transctions sucpeorvviesorrs believd and et woND9g uO}I3295ouyIeWAsendyWons2g refrence Volume I. in however chiefly may while Thefol-fol- Many however members sent sesions it found foundupon Uy Transctions them quoted es e seo gun ie sag gpasy JO pus asp) pue ayes z's Je>};nUOLZy sayouINny lowing quantiy quantiy largeprices yuas froquay> S'y Contents Ppgre PLE" Opie Geb Li | | SES BOS Ty 1) ** Se LUST Purpose Purpose Directors rr and cere Membrs re IBS TT N 119 e re PT e tt Polices rte e Sesions rec 31 te ter TTT re es Agricultral e ters 41 Prevention ee ee eter e e ee . ttt ee es et Health.Srvic'n SafetyOrganizton Organizto tersn"*-woNsag scteanecag Organizto juadinbg 109 Maintaing prospey Health.Servic'n 7185 eston guna g Indus~ejal Vapors es py Lectures Vapors Wol29 Lectures 109 Song uonga uonrag 141 Maintaing Safety Interst Interest Safety uones950234 Safety Safety Fundamentals Fundamentals Inspectors Fundamentals Inspectors Inspectors samog s1qNng Ausengd 2q9ny Ar2Jeg weaig 173 183 xapuy herein the_spechesthe_spechesthe_spechesthe_speches herein the_spchesversion Congres UELAIGe IndustrialNursing MeAZad manuscriptsinjuryinjurymanuscriptswhere The Council speakrs aditonal pasupod sadu0> suONTIUY Packing and WhereWAherqetheseilustraionsialusrtrateionsilustraions National CongresCongres Ssaduoy Paper and Section Nationaleliminate elimnate the paysiqnd Aryiqusodas the aim. policies It sNOdUrN pressed presed either canot NATIONAL paers SAFETY COUNCILorfor suoncsyiunparousd deus payusadRefrigeation Equipment LOIsNaIpsaBUOD ALFAVS 19IEA presed either canot basedNATNAITOINOANALLuponNATIONALNtAThIOeNALNATIONAL NATIONAL20 North Wacker PAOMDIC SAFETY (yNJasED Railroad aICULTD TWNOILVN .61 NorthChicagoNorthWackerWacker presntedat the aspects aspects aspects aspects wweerree avilable sent discusion Council atmaters Congres matters matters which responibltyaccept acept papers papers presnted SAFETY aYL feu Ut SAFETY SAFETY Drive DriveDrive rather Congres verbatimbut report yet without adres posible The originaloriginal Council's adres ofreference aditonal refrence speakers the C'ou{nc]il seks its Congreses to perptineerttinent which pertinent are contrary contrary Council discusions responsiblity the discusions discusions presented yo ase discus ions DAALE fyrua yaea COUNCIL COUNCIL Inc. Inc. Inc. COUNCIL BE JO COUNCIL squares Cuessantosaute ayus TA NT) Sauda sosaw'C]] vias te PAUps snYL, $9 Jo He Construction fo FodIndustrial Nursing Ppsoa4 saded Industrial wJAaq od s sy] OF Aary pu Marine Marine Section Section Meat Tanning tunequas MeatMetals SectionPacking Ideds ' se ' Mining sPLW yo Jou and Pulp Pulp ayl st Petroleum Petroleum Section jounes; asnersaq Power yo Utilties ase ayy ie wOIsiIp suarioed Refrigation JO Section Public Press PublicPublic Utilities Section Section Section Quar y Refrigeration Section unday Section Section UO Salety OF Salety Section jrnudrsaperapen Steam UOISsaS Railroad ~ ay ssaq Steam Meting Textile Section Txtile al,your aqp ay Wood ProductsProductSsection Houney SUGISN .... ey ND sypas SMaIA GF SIP Leather LeatherLeather Industries JayUO.Leather UE IO .ye YNPA ase payaso SIdHELe YW . so adarae saded Section saidyenlpasad saodeary ayes ue ju ? aqua . ayy aq Jo Ip oda UE Section ay pasng ONT PANIC] 577 YVION OF HONRAY . Roig OFICERS C. I Hox Puno) OD Inc. Inc. . : Inc. Inc. May Aenpey founay uy , Inc. SOD yo HONRAY Srangcuns MEBERSMEBERS yo MEBERS uansvyy OD Arageg paunay py) WME ~ ; C(P1uN)GD W Long MEBERS PCH VOPEAL MEMBERS MEMBERS duedueas wy MEBRS MEBRS SUOMRLTY SDAP box MEMBERS ExcisLERS SHasnipey Walter Mutard fueduos WOpIS3aT IESE oF ExcisLERS ExcisLERS s up aI] CAMPBEL WapisadWPS Mutard AMAIS 4, ' CAMPBEL AITsino-y fersaipuy mona PUE}IAD PIUMELIT Wapisaig pes Hawold B01 tupy gE a 1937-1938 1937-1938 ane, 42j03s9 E. OFICERS ) seg Ise SNEMNIG O'Brien prepuetg Wanger 1937-1938 1937-1938 1937-1938 anivg 1937-1938 1937-1938 WtOANVS NOSLY OFICERS wc winay RALSNI nIAVL PALMER OFICERS as | Treasure C. 1937-1938 ) NVIO) LEW Evlijentimosie 1937-1938for , President President Presidnt H 34Qq Treasure skemnery s9N0AT) Heny Vice President Membership Guilalit President for S gy andTreasurer Finance Membership Membership Membership | se yy beg y KU UNITE RU ss tN WD vay ACY Mayes Saye rg HOP sad HO ed NONI LOIS ANG HLS Beg nag BT-q 4 aNaqy 4 Sr NOL av] 10S mvay xan2046 a-4}y AWYALIV LM1-5 Istg Roger AL Fy Evlijentimosie Evlijentimosie Albert Albert Lt. Lt. G^,j SUE HOM pea Department S. Department Department Comerce AgrT iculy tre Safety Councidls0C)ouncil AIipudnoey Milwauke Gloves Gloves Company Company Nemours Section du & Co. HS Safety tund}on sary Safety Section Louisvile Strect Highway Highway Highway Section Trafic yy 2g PUL S O Council President Afilated Cos Sey nag saucy YINOg PresidentAfilated ,Counselors CounselorsRelationsRelations Counselors ANON Ay Inc M ateyg Counselors Past Reniger Railway Co. Industrial Relations Inc Past Past President President President Range Railway SMX zy OR ne Lewis Hawk^ yeuorse Warter Aetna Liquid Consulting Pulman Electric Horas Interational International International Lehigh Valley Governor Governor Section President wey diysaquy UMNCtINpy Section MayesAayes Fjrounay ' onan JEgsanpeypure 309 SuramMapes S07241C7 Company s0y SurSeugy JOG 04 TUS aug e207 2OJ any 10) Corpation WIPSG-Id1WOPIF4 wun Nusinaypes9d Corpation Muapeas fy | MANIEWOIPls345 pur MEP gary [9A NUICLONE FI y - 98 y T-IdVUA Geqas g Company NOWIRA CouncilCompany eyCANIN, CMIN gy] New Jersey (AV, Ss TAY Harvestr New New Jersey EL Noy sebivy ACY HE MYYY (g<61-2<61) DIRECTORS fosaf 1937-1938 DIRECTORS DIRECTORS Sundin ga. DIRECTORSDIRECTORS DIRECTORS frontsdeD 1937-1938 JOANIE W. Company UatayH. J. Anderson Anderson Paper Eastman may found) yo aieig YL Hayes Chatnoga Kodak fundus Anvistrong11. 0Us LINWO D wnat pUtEHAY POPE Consulting Engier Comeil Company Waphoag soiy Consulting Comeil Bailes Cayey Bakasi St. LUT 2000) '3 TOA J. HOpPSOnT Bsumeyr phsnuay) WMT Mining Enginer Pty Cam CouncilProducts Bsumeyr VOL United POuy EL Min g Inc. SAIE Staes WesternWestern Ruber oNey USY Section CUR Ruber a i Rubber Products Electric Laugldin Co. Steel FS beg SD M1 NesmaNy asinbow Inc. W. HergquistHergquist Corp.Corp. agAY Electric E. urns) SVE tow] suvoyE yy iy ANN suy FAILNOAXT Holt South MaLivay Civic Safety ANVIL TY Lf 9 relI. E. Jones Laugldin Hocars Petroleum Hocarss Bend Holt Bend Bend Section SectionSafety Council Council Safety Council YY ep *)* 4] ey yy | TalNoy S$ MOD 'S ; : N Ipuned DIRECTORS , OFICERS A19;eg Yo anydITy as29uIUW07 County Safety Engiering Pawuey) Madison MAMI MISY Section 0} ayes . OD FT yp IMU)DD *o)) OD Me QL ; Section Machine Safety Boutros (puned Council Sectivas Mey Gary Acident Section HONUaAIg Howsam Council Fanoway Section purpLN of Comerce [ounG) Sectivas Department Insurance Comerce B. Cement WO}PIG Standard Chamber Ayes SYBIL rey Accident yo 30 * W. Departinet Publicaton IslandUONEIOSY Ans aw ClubClub Hunt Council WAPLOY aqusey Faen Pam) Employes Burcirt Departinet Autombile ONDIS D. Columbus Safety Departinet Publication Section Comerce Comerce Comerce SPI09 sApauyleeys Major Iside Comcil Council Csusiag Mrayeg 29415 R. Springfield Section Spyeg Bjaresuriy American Magzine Rhode erosauy NosteNO]Y Ohio American Safety Island HLISNpU Tnos Kearns of tatas PIEAITH ta9s2 Kearns ay UsuEL Bjaresuriy National Safety Council Tuomas IndustrialPaterson Council Costa Council yeUIsnpUy Safety Acqueg pang J. Contra puesy Keney National Safety Hamot Milwauke Concil Jesaury Council Rhode Island Council PyyD NhF109 af woy SKIVANO. aWwROUpPvy AILEY Milwauke ex18I7] MANY ]Y Surety SALINY MIOLNDIY Northern Comison "ROSNIOY NAVESOY KenoshaKenosha nasny COUVTUY Casualty Co. Nosav WxG Knudsen Milwauke Comison Casualty ATY Comicl Cat18 Safety sAa Knotek Surety Asay ya & 3 Eg Section y VY ]y yy FW magne avosxys auvity ATMO W Rochestr Charis NLIVAY Trafic aed] R. jaxuvg Comeil waTHy 25a Railway Milhard Seatle Safety sony, Md MANO, Education Consix Seatle Comeil Consixx Safety hl BALIV Section Section woAsig SANVe, Lefler Consixx Traffic f Comeil yy yy Le OD sp 3D yoy np -y zy ~] ] -Y AY *] 1 AON Hor ent Howsam Hunt Section NomasNomas Nomas Columbus JEWETT Springfield P. Mosy " 3 -o7 L. M. Ker igan WxG WxG Council SY 4) Section Y Commission Lafountaine Lafountaine Detroit Detroit Lafountaine Railway C. Lafountaine Great Milhard BARNEY LEVY Lefler Rochester Education Safety Council Co. (4 1 Yt AY yy Jay Martin . Berkley Rapid Burouglis Foster Jr. Quarry DIDO Geonge ~*~) . JO . Elizabeth Walter Guntur Electric MD OD Safety sae Elizabeth Safety Homey The Gravis Stone Co. Telphone MOHSqutioy Pestock American daursiy [tne W. Council & Pulman Telephone Telgraph . Co. Panuo> Milwauke American Topeka snauiduq Guilhert SantaSanta Pontes Honey Guilhert & Atchison Fe OD diuoqsey ~ Perniose MUNIG Hauptr Haskrt RefrigationInteraionlBureau Sunjsue ceydpaeryULMpods American Co. Refrigation 1 doamsuyFAMED Gronte , opry9o. Aktur AmericanMutal County Engincer Ofice WENIAS Mines Co. of PIG Bureau International Harvester Aktur Staes Safety Potiertox Potiertox Hudson Safety SNLIG Valey Council SYO1DIN Haskrt wayrg, waxcytg County Co. Comercial Suynsway Sayagy Eastbay Rexinger Valey Council Col. Cement ubaey Lehigh SPOIL Hrilmuth Section Milwauke FIO *d1079 AY SE amen dy17] ts Gayes arg Ary pirbey ayyfayes uosey aye aie af WING Chicago Counselor Hrilmuth ^ o SWeogy Milwauke Robinson Council NEMA Bestor North Shore Milwauke RR Council Pensylvani Safety North Shore Milwauke SANCE rind| Dulth State IG NALS Ronwr^"ci Hirt New Chicago Ronwr^"ci Hago^"n Marine Marine Governor State New aa G.E. Sanford Section WIYNOG] Misabe Neniey GNV Safety Horors Horors D. Marine Marine Section |fy AY AVY inapy YQ | SGAV SENAY Sunes Jersey SING'y oy qT NUT YY aq ty -f ya AL AN, IC WG] OU AY . Life OD David The Equitable Patton Newark Council fayrg Mears, E. Milwauke Gages Liabilty Mus Perniose potey Pentos Safety Div nierce Div Pestock IY yy Mutual American Ing ayia Engincer fu OFea4 Relations > Albert se-mey Counselors Henry Rexinger Lehigh H.st,] BestorNeng ay rons -y Ly A Lavy, Walter Rosenaun ad wins i Ronwr^"ci Walter Rosen aun General a Safety & Western Pensylvania Electric Electric Co. IY Society of wax NY* yo Association Asociation Insurance Insurance Engincer Inc. Cement E Co. wy Ry Coneil UE EE Sua | m~ ny G.E. Sanford Sanford Ay Genral Electric 7) | aNVMS pe] DU ED SHO NOY yy BIB | Fe oe 7 x pris Bis 4 ^' $47 baa SBE Aai es een Pee feo ust Sea a A a RY REE . as *e y e ee awe cere :* Ore cameOS oo a , OFFICERS AND DIRECTORS Continued _ HENRY G. SCHAFFNER Eric Safety Council Kaxt G. Schoeffler Rahway Safety Council Harry A. Schultz United States Steel Corp. H. E. SERLY Wood Products Section Earl S. Shartzen Utica Safety Council Gen. John H. Sherburne Massachusetts Safety Council Dr. L. A. Shouny Bethlehem Steel Co. . ERNEST L. SIMONDS New Haven Safety Council A. E. Sinclair Meat Packing Tanning & Leather JUDGE LEZ E. SKEEL Cleveland Safety Council W. Smith Standard Oil Company Ind Edwin C. SMITH Blackstone Valley Safety Council WALTER DENT Smith Delaware Safety Council W. A. Snow Construction Section Industries Section . R. T. Sorensen Elliott Service Co. E. C. Spring Lansdale l'a George R. Sternens Safety Bureau Buffalo Chamber of Commerce Jona a4 StilwellStilwell's Greater New York Safety Council Arthur M. Tour Consulting Marine Engineer George G. Traver Greater Chicago Safety Council Inc. . Major R. D. T^...meRichmond Safety Council FRANK E. VITZ Superior Safety Council Dk H. Watson American Telephone & Telegraph Co. HARRY M. Weber Wilmette ] Dr. David E. Wegueix Baltimore Safety Council S. E. Wirting Liberty Mutual Insurance Co. A. W. Wintney National Conservation Bureau Howard R. WHITNEY Worcester Safety Council T. A. Wilson Textile Section W. H. Wixans Union Carbide & Carbon Corp. F. B. Winslow Safety Div Birmingham Chamber of Commerce W. E. Wortil International Harvester Co. E. J. Zauft Safety Bureau Duluth Chamber of Commerce G. L. Zwick St. Joseph's Safety Council eem . = Th purpo The throu prever plies direct lation Rec condit diseas accide tive it The profil tion It ha sentin of the 400 for university indix hers of tions rerns the mi the " and r The the fir under Iron 1 nauko Cong organ memin bershi The grant unne devel make Th expai ness ( CO ESP YS agtth de. era oeie fe iss fefetBa eal Industrial Dusts - . - WEDNESDAY MORNING SESSION October 13 1937 Counselors The meeting was called to order man A. S. Regula Executive by Chair- dustrial Relations Secretary In- | Inc. New York City and President for Engmeering National Safety Council who intro- duced the speakers What Industrial Dusts Are Harmful air Industrial = Some a Whycomprehenascitv-ine prPeids)t substance poisonons SfE encountered By SENIOR SURGEON R. R. SAYERS ' Chief Division of Hygiene U. Public Health Service . While dusts exist everywhere in the at- mosphere it has been is difficult to establish a i turies that recognized for cenworkers in certain definition for toric dusts Sollmann after : occupations are less healthy than dusty those not analysis felt of various definitions for poison so exposed The number of persons that it is very dificultto give a definition : posed- dusty occupations ex- which will not be ambiguous in some : of the largest industrial comprises one but believed that the following cases fads i pational diseases of groups The occu- of the points which must be covers most . Fs , mospheres have been wofrokuenrds toin bdeusdtuye atto- substsaubnstcancee as such considered in . ay by entrance tion of dust into the system ingestion inhala- poison is A poison is any any which iy se tion by ingestion - ingestion by direct direct absorption absorption ing ing directly through which through the skin skin by irritation irritation of the skin directly properties and its inherent chemie its ordinary 7% 4 . or byby a a combination of the foregoing skin combination foregfooregioing ng by of destroying loifredinary capable of its destroying action ordinary action seriously is is . ES The suspensions of partiparticulate culate in endangering health when or of seriously ef : air have been broadly termed matter dusts in it is applied to the body externally or in 2 , and sinokes Such Such a classification classification fumes 50 internally to 50 Gin internalilnteyrnally moderate doses nes ' sarily arbitrary since the line of is neccs- x tion between them is demarca- dusts are known to be poisonons 0M, agaay ae : the chief not very sharp and while others in the opbe : of the differentiation is based on the size harmless particles Investigations by the Pub- concentrations usually are comparatively it may be However breathing ate stated ' lic Health Service in dusty industries dust in that va] vealed that alotit 70 re- high concentration is not aN desirable . particles examined per cent of the dust were between According to Fairhall the damage pad: arising mierons in size only about 20 1 and 3 from the inhalation of toxic dust . es less than 1 micron and the per cent were either local or remote and dependms ay be : : 1.3 microns median size was Industrial dusts whether the material is a - upon $3 . than 10 microns in size are mainly less son whether it is causticpriontoplasmic poi- ta dusts in the air such as However fibrous whether it is absorbed into the reaction blood or i found asbestos liave been ; to contain particles as and carried to other centers stream which at 14 ti affected 400 mircons in the greatest dilaamrgeetears 200- turn are in While generally It is now well established that >. of speaking exposure ii Collis dusts are more injuriaocucsoradsintghetior to certain kinds dusts such as those cun- ne chemical de! composition differs from that of taining considerable quantities of free silica mortality the Pik ; human body or from the elements of has increased the morbidity and vee | which the body is normally rate from respiratory diseases while me- . . composed it tallic dusts such as lead and its , compounds if . vps 85 1 vy , [2 : lie bp tad Pon RS KU ma ESA teealg Ol Bed fe: Neb RES CORY F id NER oe PEs <5 AS ; cabs at: y "fre ae dee if fae aN SE ayy bee nes hii Re a ie G ah ong RR TT eeeoe poisoning . saliva poisonig saliva dusts absorptin theradiumparticles such finely mal- SMNPIUTZ SMUIPD iritant ben absorption ady and third divided clasifcation has other Dusts may may food to afections traced skin zinc been folows dusts produce produce the causing inflamtory me by reaction alergic fine charcter Those producing either often inflaminatory often certain of pulverizedpulverized producing symptoms ginvitsetc. inflamintory polencaused wayy untoward ymptomsymptoms produc- these mebranes organs inflaminatory organs direct poisonig iritants eyes and diseases dusts ableretained pene- disablity inhaltion butwodSPAqdsuIy genral trate the inorganic dustsareare termed trateSome inorganic tissues pdayorus injury Some lung dusts from cases injury death swalowing from set reported ditonsrespiratory Some insoluble these may be the suficently activepermanet in-up various reason inhaltion YsgeaLUs poundspoundsrepoted inhaltion the or ofendrscom- causing may permanet permanet reasons clasifcation asd com- Sound workers tisuestisues causing definiteaderfineiteand like with of be cadmium clasifcation Dermatis clasifcation clasifcation this ady metalic Dee untoward producing iritant are thiruni , and jour Iritant whichwhich have breathing JGAPCNYSy either systemic have of human pene-of disabilty from pulverized dusts asus Apog ing of dintrobenzes bdinotrobetnzhes and For In four tbypees dusts 2902 3De47 among systemic organic are Dock the dust for wood general . the cadmium metallic fume known by and by radium A inhalation inhalation as alergic type divided The such cause EE2 in AY included included included Heda QJM a Toxic Toxic all typ WAYS Incal Incal usual y WE DAv clas ification or Iritant Ir itant dusts organic PUI 32 irritant produce systemic symptoms symptoms described iritant ir itant or systemic iritant A dust be PIU Dermatitis Dermatitis Dermatitis such as thiruni Dental Jey The sified gingivitis developing developing developing developing inhaltion reactions toxic Keayoyy ir itant irritant cases se In reported both and respiratory respiratory ful- especialy swalowing as yo inhalation AIyy us $4 dust from various difficult workers among an absolute clasification . dintrobenzes dinitrobenzenes dintrobenzens chloro- workers in retained years some aparently gradualy ous particles Somemay them poysoda damagecausing patholgical absorbci prove further O39vqO) the damage inhaled patholgical without patholgical harmles activty hand both damage ocureddust inflamina-flamina- dental defcts activty dusts workers exposed derivatives yew smal extentextent particles harmles toxic the resulting combined ex- wONELYyUL irtaingirtaing afected the particularyparticularlpyticulary dangerous dental dust thesolutethat phagaocyntesd acumlation results body one clasifton Aqnabsy inflam- defcts ben phagocyte body producing contact acumulation tisues results physiolgcal clasifcation clasifcaton cidosiqu solutesolute folwing producing mebrane which tisues setting difuse neighboring pasges tisuesquent the conveince quent subse-istics genrated operations be nature important for sons fibrosis the but the conveince Organic "501923saouegsyn particulary particles proces alergic is equalsolubilty substances aproximately aproximately Organic Organic particles hydro dyeing oftwo . the dif use into The nature solutesolute substances the ofmore caled without absorbci absorbci incrt harmles dusts and further ase naphthalene naphthalene naphtalen Eye investgaion investigaon some changes cornea investigation sakp injurious injurious cell toxic some of be dusts may a while remove from o3ipur workers hand action while remove poisonig pasnu39q other poisoning poisoning MO workers to JO exposed paraphenylene is than mode be titis inefective causing inefective inefective more However the entrance pue aaeq where folowing where same time subse- dust used respiratoryrespiratory neighboring alsobut neighboring However istics convenience according to physiolgicalphysiological efect you jug efect Organic ApaLpN s0jv yO Dusts I. Organic aproximately where prelimnary contain sose> where contain popes was MLVIEd Dustswhich dusts aproximately Organic Ep dusts those clasifcation sae scp for prot psous ty skin OF tion generated yo pue dyes generated contain contain producing respiratory pasages during during due due inflamina- inflamina- violetmethyl diamine iritatingsevere afonrdm diamine dangerous comes in inflam a- producing acute mucous may Toxic dusts handling dusts from which from respiratory , | inflama- inflama- milers to be substances powdered preliminary dyeing operations extractor term dition dit on process extractor diseminated diseminated in in di- and | cereals cause may contain pasages pasages as pas ages Digestive skin diminution diminution conjunctivitis have have workers such workers apparently Alergie personal may personal peculiar alergy used hypersensitivenes hypersnitvens hypersnitvens phenomena phenomena tuberculos suficent quanti es harm- betwen which except infection tuberculous coincdent exagerate suficent they may of 0.5 asociated tuberculous tuberculous tuberculous except tuberculous asociated dust infection exagerate If quantities Bacteria infection active lungs lungs may exagerate industrial industrial industrial dusts dusts , with with they exag erate coincident coincident quently quently asociated . harm- cases bacillus less are suficent assuch and of ranges quanties micronsanthraxthe lungs micronand causes mechanical degre ranges 4.5 thesis lungs through iritaion suchmerely never fibro-and Howevr fere ence with writers microns Some with function influ- larger function the thatthe and stufhiceent nonpoisonous nopisonus doheavier dusts setle due encedebatable sometimessometimessometimes atributed nopisonus on exposure death acarbon supendecontaing and syntheicaly from subjectatributedLarge amounts carbon proceses organic subject and containgtprhoocuessanesds aresuch high Many of as nontoxic dusts causes mechanical irritation mechanical irritation the suficient SU writers lung while the dusts health to microns in diameters diameters However the and heavier settle due larger heavier gravity gravity the air suspended normallynormal y thousands thousands organic attributed chronic pneumonia are exposure . amounts amounts of are chemical processes such tobaco dust fre- &} JaE tobaco dust has been tothe Seinp tinies pranp exrts nicotinegreatergreater nicotine byexerts be- organism PUC organism tinies same few produced prsoblus Suesey produced equal quantity the same smoked dermatisdermatis which tobaco tobaco nicotine Severe experienced Ayuntyes2.uepqas 'HOUNLIYs<)> handlinghandling powder or dermatis powder expriencdcontaing workers 12 yuepl workers , varieties pazueSio making for drying and Jaw remain requires yeunue produce JPN Pieric remain wy also or- pue oyu Pieric Pieric 20 14) pase has is Dermatis Pieric workers containing making making is in which which requires used for drying found found to produce ollest latter a dermatitis synthetic the dyestuf the occurs Dermatitis Dermatitis Dermatitis syntheicaly handlers ocurs uoqse handlers handlers silk frequency of detrmined among atw0d was S102 with a varying varying disease diseases may develop such senitvens senitvensfrom etc. horschair furiers depths For instance mayunecsary sufer from for the unecesary retphoreted caught passages respiatory being subtance Should substance as alveoli and a lungs autopsy autopsy in there suposedly are normal Acording 1. implies lungs Drinker four ferent According produced are pareposefernt inhaltion suo asbetosi IneIsoul dif- lunanevrthelsnwohviiacbhle organism ORGANIC comprisedmwahiych BIAMOLYArgiqnyoJsa gna bPeresonSNfOprIoGQmN,cpaheunsomeedna coonspreations body quionfe hexamtylneramine hexamtylentramine hexamtylnrieDuring important reaction Ji3eqnznosua folowed oinhnerlntlyy certainthesecertainperson of not s9;Dc9e2u3ce pSauefityskinquine Pryerqur wYhSniocsEh ingestion manufacturemost Syme exposed molde reaction pneumocniose specife STI pPrsesg seat inhalation reaction important aanrde the pneumocniose The man first and he which cause cause specifie specifie lung silicosis silicosis patholgy pathology and followed by which lungpathology OP JO JO are folowed followed sysnq so Sysege Jaap Keue aus by eArdoyne Susne> Znsmerd Iniser sonposd SsOsE szdyIM yotqns grgpaye I<dY9 22 10; s2uLIqi2UT Payeratys moecqrgut pfuvsiv poypequs CIOSets spony *.ig1dxKO {4290 grouped apew Sucp Dp u22q S MIM] ayy 20 ,Sumocid Cprwidagns UpNADE SreGigNyos spryeuny snoqsan VOUDIzu ayqueap INOQUEn Finpsarye porgaceJuposd s30s0 prmesz wmoquen s2upvanj $2UTE pryequy yUEPOd v3 21e4 ty $102 usyo 941 JHOS 37eay BIOS Cant sno NONLIVING ORGANIC ORGANIC implies particles particles which toxic produce or untoward untoward organism Alergic Allergic PP certain WAND aynjosEID #1 Avis OF 91 2qy WON 2410508 pyrUIs yg ast py & OF oF 34) A DUNTS DUNTS QSSewer comprised but vais se ef ects in the or Daour 37 yy MOT JYyy omy Ns YO Jo 34) 3 1 10vy aab 10) peNbs s9eNTD from dust in co ons imported dust imported imported due to Ue mixed Africa HP Africa LE engaged OE manufacture manufacture manufacture engaged engaged the of quinine quinine and quinine skin phenomena prepartions prepartions sufer from may partonon may payers ayy exposed exposed parts ingestion oingesftion the for SIsNYd SE or body quinine were quinine quinine Dosey pinoy a physiologic survey survey reactions will ground survey ground and per there was the hexamthylentramine hexamthylentramine the hexamthylentramine exposed During exposed exposed pue JO Jyy OP JO (2 USD sey Orne pp Dae pure EyDep) sysmp < Lacey Jaw IAy pue ogy JAUNICE psesiyanqS3Supnysrs [InNyS UDagaMgW SHS gIoHD sayKE AUtes wesang HI94 09 a sory Sig 1 1 Dope ruton sp ruton .. cation ruton cation husks trichum which is by arisng stripers ex- dusts WUEY Iritant are rutton dermatodes and reported 2) ved striped which from PpUMES reason , interst the serydsomge reason inhaled strong subtances which fromtypical proerties exposure branes mucous properties wag. subtances produces form inhaled DISH typical Mycelia ima dust whicher OUI interst andpowder are [SMONLPIT imediately aluminum ima of $2reds uper of has infection and aar Prdinary wood dust imediately sevrity purely the black imediately of such mechanical ben eto purelypurely mechanical ting tain espcialy espcialy form macertd sugarcne mycelium hypomcetspores (pa2nposd prevnted reachingcause lungthe mincosal- sdpCIYS requiredwods JMYIp may these greater impreg- form the from through tain kinds especialy which road which when because health rhatan they calcium importanthehung esential which causing painful haminerd Jpanrd chromates haminerd corode coroded and 939 mebranemebrane Ss3elq of ned Some lesions capble painful and afect wods capble of fisures snotn! JUIsaId tant inorganic poses poses disabilty disabilty satin- on and ' which azine -kin lesionsthe are Ly ate stripers coton husks H2Iy trichum trichum iritating been branes comonly stance mechanical action action but macerated macerated coming coming handling handling vits vits impreg- impreg- freedworkers workers dust dust the woods causing causing Brazil wood skin skin where scaterd dermatodes ul pou 12 by are cer are dermatodes stripped Iritant bark Spa of to and mem- of found spores rashit Wtf Hye powder scatered powder guilds ayy Us va ud IO zinc VEN 13 2 etc. IS Puc a DL Sop rule imediately Hp UP dusts areare iritative iritative iritative iritant iritant HL sb Vw injurious injurious corta- Jor exposure 4S | Certain ini- ini- upper infection reported HV HAT reported dust dust aluminum aluminum dusts skin from tract that Alas severity respiratory severity powder paced Fibrosis stalks basket- JO in though mycelium FOUY of basket- hyphomycete from IzZIs hyphomycete c canes oxide when split cut tisues membrane haminered fisures develop the JIdgUI dusts of haminered scaq far develop feu YN So alight " 3c; develop 3y) se Us oy Ise though yyr dy) dt UL OF prevented they inflamation dusts . inorganic toxic and and ir itant reaching lungs examples examples oxide examples dust may properties properties properties through mechanical mechanical action Fibrosis Fibrosis Producing Producing which hung some disability substances than ick ebony wood West West Indian Indian mahogany mahogany , be n mode entrace mahogany aspergilosi colton and known produced fibrosi ick wod California Indian Canfuy PINON efect vewod California California cocolba chestitwod chestitwod suferd sufered colton halation spores 0) S 24 weavers and knownas DYN yey) Of vanesred tagysan suceptible becoming among mildew number some-some- prayoaq body poisnous those pulmonarypulmonaryevidenc cocolba wods haltion whichwhich poisonus most times ocurs bly INP woods those these are in- in- the Wl compunds of handle SnuYyIp oxide pulmonary to red particularlyparticularly suceptible becoming silicosis among among the Health Health of $2 Ff) subtances they wTsHagjsut the blycarbon- contain miliary counterd Unstained suficenthave conetraions subtances chromate ORGANIC Ssne> by fected typical yas Jae suiw Iu were were iy JO contai DUST property Aspergilus califcation ofnumber en- ,'Sansey absorbed pases chromate disolved thetime LIVNG particles These milary mucousmucous disolved cases some capable DUSTS ORGANICORGANIC . These examined Unstained positive go those OF positive particles capable exhibtng phenomena of pneumocnis AjayY pneumocnios date phenomena life especially especially property property repoduction multipcation teainsters WONeAUr.O2 Acording Fairhal the ocurence nasal uNxoy J!OUIAll multiplication Aspergilus Aspergilus Aspergilus subjects subjects fungi identified uey) werebeing identifed farmers or reproduction reproduction residents St chromate workersworkers 29,0913 usualy residents such reteria as teainsters fungiconetraions one ' with with conetraions jesea usually small agricultural towns andmultipcation found agricultra agricultral where is chromate ocurenc low They marketed where grain $49;W AsCcjUNs Aqyeubs study Servicemade S. Health fre dust asociated 5339 Since dust inhaltion fungi ith nonliving in are asociated asociated marketed marketed Farmers Farmers are asus 4] effect poisoning poisoning more produced one one mode cause entrance entrance fibrosis fibrosis of the Morcovei into body into ordinary directly prevalent widely trad particulary prevalent prevalent particularly compounds compounds compounds chromate absorbed absorbed no Of of that dusts certain certain a carbon- carbon- Although suficient concentrations shown membrane pases membrane clust into stomach is OF pulmonary pulmonary juice and by Acording Acording to JO perforated septum septum is comon Fairhal perforated perforated pneumocniosi fibrosis cal y experimentaly experimentaly exprimentaly workers among dusts a with the by study was was found that Public daily Since this taneous ( in which taneous skin pulmonary OUIT afects case straw hay pulmonary Actinomycsi Prleisoe metals investgaions dimensio disea form Actinomycsi SuypucyIMEIUGS poisnig of engaged wol- exposure rtersrters conection vapor have conection disease anthrax anthrax investigaons storing of traced ing oxide reported distleris etc. s3Ix10M reported safe grain SUYyIp and mills Casesjote tetanus brewries distleris house dasuodxa JpqQuyad exposure granite material manufacture Ss24C2M brewries S2vISP mg prolnged In recnt malting manufacture manufacture ith the material granite Inorganic exposure except are Suyeq houses factory factory typhoid II he n Suowe Diphteria , smalpox vegtable the when organism organism organism when pulmonary is anthrax known known people manufacture were having traced gras FE straw hay gras vegetable vegetable debris debris nated likely likely to withaffect people engaged Actinomycosi Acctionmomeyrccoisails comercial PUT grain cleansig grain flour grain crush- houses malting breweries found JL FE OP INS Sse OF malting DiphtheriaDiphtheria bacilus- E UIQ JO agi Dusts dav eo Sisor{wtig exposure bacilus- or producer typhoid compunds exposure Inorganic mineral SNIUN) mercury typhoid producer origin Inorganic livng organism youdenr2. incdenc increasing mercury excpt disease areorganism organism incidence mercuialsm compounds mineral the U)02 Inorganic sres3 disease from exposure from exposure origin constiutional exposure requirng increasing mercury 4n390 producer a . ayy WU Ay produce PUL Dacterial rapidly clased be increasing senitzation cause produce the not Ady of Dacterial can toxic number as may senitzaion usaly Clasifedtoxic efcts inorganicsome Alkalis cubic potash y disease angioeurtic of conditons the siO3.fiu meters hay alergic sauts0g oxides are comon pulmonary produce Wesys and betwen conditons untoward efects BWOS of perennial diseases diseases namely angioneurotic asthma human organism organism under tye. equally the metals For OF from some some heavy heavy dimensions dimensions dust of investigations investigations dust engulf engulf fall shown exposure oxide for prolonged prolongedprolonged corelation dust corelation Aconqcentration conetraion with the ceeds total fumes fumes be exposure was mercurialism concentration to the lung microns quartz shown corelation which which which contained etiolgical etiolgical ex- common in causes Alkalis dermatoses and common found extent betwen Dusts containg mycelia mycelia or containg headaches the headaches those undfor containg producing stonecuters fungi ing and and nonfibrosis nonfibrosis Toxic Toxic those which inherntlyIritan dust are stonecutrs bricklayers mason silcates discomfort giveMaltser's sngIDeg makersmodelrs in jarsitc riseitch aloriediscomfort discomfort "Maltster's those which wsueI10 poisonig wuipuy ceilings are stacked and poisnig those produceand inhaltion eyanimde conditons undergo undergo powder poisonig ingested Neaywe from undergo reported Among stacked white ayy wet fermentation metals ocurs covered covered a powder powder dusts froin Mucor Sporu- such mercuial cadmiu dust dermatis sclerodma other of dermatis scleroderma eyanimde conditons is the Sporu- family poan of Mucor Mucorfamilyyd: such Sou) sd20UEISyN BNET sNposdas Dersgqrecs PRAIeg xodigruns's3<cI51p sapcas avnrxq sapraved A167 WIsaye vueyz39 as spery sacar faevoly cosetHaeatuagUEy~ teNeE OYywW ipuo a eLuamons PrutcOD peasrcus gerayug auCtouNd Spowas FHCINE BUW0I9g 3~9UEe P2192: ogeag a I teeey pro:AUT: r+ pareAUE proxr prs prINpo- qenmUaso 2 producing Khrosis producing Toxic dusts inherently toxic absorbed their produce systemic poi- iritant iritant salts aJrseOnic voarsennic cadmium cadmium puc EF wren ve293> uo] tga: 2 SPIE sau0g cement IPL makers sany SUtsOy terers suiys Ulceration perforation O19 Ulceration tuin dust syou and , bUOsy UF occur workers workers ash atwoy dust are 3NID0 3yy inhaltion of sytemic yanimde , YSNP aieStU scleroderma dermatis IHW , syy Iyy Cases a st Ut (22 Joyo pee dreasIp Sap SPINP Isaqy UIPpue wu; tas pO We p sands pur tp (urge34h apel PI 243.0 Sase7 Sun l=you & Ut IzuUL- eady a. + qt vo Ls sI- ir itation masons metal platers sep- exposed poisoning the calcium and can- Sey ayy yo Cr. with in among among verity by Jor pur ayy -q yo. Wu. silicates tis uesilicates pulmonary dust in thedisease distim due distim tion dusts the Jo iI. Ys suTuny apy Ad: aap a Is 0 dw LeapD pees rub wheoag 4p Traction29328 ne which results pwuenjdrI0 rogesiverogesive whictisues tisues Traction when rogresive nodulation Siliensis Siliensis nodulation zstablished strongly predisposes once predisposes zstablished strongly with zstablished infection infection Jos ' interstitial the tubercle espcialy pneumonia tubercl infection bronchits are 1G, hronic hronic espcialy silicosis complicatons silicosisilicosis DSTISP relation advancedacute ections ections bronchits complications complications YU relation of relation the emphysema emphysema emphysemaemphysema pfner ume on- ia advanced advanced degrees degres sy respiratory ections reactionreaction respiratoy respiratory JO han free free silica silica never due been established uy pou aqUpeog entrapedentrapped devices thus Familiar Familiar exampleexsamples are drillingdrilling operations and dril ing operations Generally speakingmethodGeneraly speaking speaking speaking thethe the ap licable controling method controling controling controling dust aplicdaubslte used entrap under dust advantageadvantage to sed tdCody sas, Pre 2G Cp FR (4G lewOay gg gloves CN MAL OX PE Op UNM and wade goles ,, MNOQE) goles other tective vr pee salves ointments delay delay pounds or yutuy General General General VUpEONTD,peusmpugFOT housekping rulesshould pus uentda2gStruQerghousekping housekping housekpingControl should observed "HNUTY ZITEg OLGE Control ju houseke ping housekeping clively clively ,, aumiy interlated Those ' pre- B>DI>S cusnof2q03() the ocupational Water phase , cirumstances its AQUIC hazrds placemnt medical guarding proper examintos CEL Wid! ATEjOs its prevent t the circumstances ,, too hazards o660 a placement placement inter elated interelated medical medical aditionnewworkers employees cpap ApOsy pee well the hygiene and important enginering ocupational directing and control medical control the and fied engineering pational or or Mea basic basic Mt ap ofUb disease clear tend to clearclear occupations occupations examintons physical ocupations physical examinations examin t ons director director directordirector diseasedisease examinations examinations examinations always principle always Sometimes workers soad trades shown staisticaly staisticaly in measure already weding physical trades certain completly sunasd methodsned alow se staicaly infection does remberd cause in Copia porns protecive proces ja zorse zorselung whatever the Health an whatevr conducted fares instaled howevr thatadequate designed SyeasKydjuatoydursmeasure thatmethodsthe way "Industry imdustrial and it lection remberd kind ofers Se utam conducted ju by does study the adequate U. Health marble anddeal Sunpesuga premploy- Blomfield fsuosde Service throughprevnt pynoys Detrmination Health Service among among marble given Detrminato Edear among marblefinshers atention ben pul Vermont inhaled examined examinedplants produced mild protecive types respira-SMOUuTIEND Tuseroye luaslpy Lectures refrenc inhaled conetraions subject respira- mostperiodic produced a two asodand examintos plants importan II examined fibrosis some some calogy lateralateral now P[Nays premployment examination made -erious changes in cases changes noted incotamined 1936 genraly air those physical were no linear premloyent examinto flonmheld disabilty filtering noted exposure colgy J. afterafter exposure dust Js2y!0%, mental work ciaturot years exposure the years it U dusty dusty water can enclosed Dptur proces control of and be completely completely Sometimes enclosed aJ2 O Ve control superven completly Ssaqun cal a pro-mechani- measure ody found room or compartment It mechani- dt] | mechani- 0} ue yp It oy stated OF best , instaled only maintained properly designed Jou that maintained Public Public tay instaled Aue Ul Jae injuries and illness atention has injuries A finishers great has given se and_medical_control and_medical_control dust w2Ia13ment found indivdual the subject of periodic there mild lory types Yong The premployment WIIG The incontaminated buthetre FEY are generaly fresh generaly sayies pura those many types of respira- available those incontaminated which which 3q incontaminated yo uy 3g fne Joy Joy ayt the premployment premployment determine source UE which source filtering mental even for upon YON and removing removing from the air 1] tod 20} ing the instued instituted enginering enginering GF instiuted apeur protective de- has ay WG that Industry physical physical sy out tee References imdustrial prevent them preemploy- through physical factors important examintons examinations such Uy such Control Huletin Huletin special M.5.0 employee's Fumes Journal Journal contagious contagious employe's physical and serves work dis- contagious flonmheld flonmheld ciaturort Yearlwunk 1735 marble corundum alundum fibrousalundum alundum paris magnesit magnesite corundum Included among marble of polisher's sum emry AtqiY. magnesiteand polisher's rouge plaster controlmedical medical medical are Sif polisher's IU 1n- Control Control VIS Enginering and control Dust Enginering medical control combating the industrialcomplentary complentary control extent the complemntary ofacptorsand aarree combating Engiering hazrd Engiering Lanza ftw extent . As As Lanza Control As Engiering recntControl It_isa_bsic principle hazard tated atackedwith a be atacked dust should paper at its point SOpPE purpose brief where Dy for dust intermiten and makes exposure whereDIAIP DdyN 397, 1910 intermitent conditon for unusualunusual elimnating employe Gen condition makes ade- OF more work ratherpurose alocting alocting physicaly Journal given physicaly of but which impractiable Jsow living other dust control impracticable impracticable ade- PLAY JO ee bacteria Asqajesd BstGdNI Ocupation_d dusts disabilty dusts "Pry worker asociated other Where asociated living E dusts in process steri- the methods worker himself employnt University Pres sdyTUt cause haz- University ultraviolet BIW though him Oxford assuch with increased increased tempera- temperaincreased chemicals tempera- yous PUL ultraviolet bactericdal WOHIPUODALINJeaduY practie cause Nurstein Journal chilorine other the premloyent bactericdal premployment R. like radiationradiation substances substances chemicals Ocupationl subtances JIYIO examinations premployment may of other Pasteurization Pasteurization substances CUO E be include use YINWAIME excutivesexcutivesexcutives organi- teinherIndustry temprature josyuod F. Pasteurization disin- kill except about 140 temperature temperature 40 psn most disin- learinghorsehair proves excutivespurpose periodc physical Industry used Jensun physical of 1921 fection for spores to Iq SI ysnp those proves should totally unles though to would more examinations zations examinations practice and oficals oficials po OF] purpose colocy employe eliminating elimnating elimnating an Drinker Philip International physicaly the suited .... Journal suited A colocy colocy Industrial employment employment Dycing unless International Occupation__and even International be haz- JU Further- teinher extended premployment extended industrial to , industrial of October periodic periodic Ye maintain physical JHE ment_and_Le^l 4 Prosser F.on Afections 1911 V. S. Public ment_and_Le^l ment_and_Le^l tempraturehowevr saoqusido Aspects excedpracticable temprature tempratue pPynoys examinations examintons and therebytherby lengthen Aspects practicableif Wool Wool however Inse not IsNp awos dyxnb examinations physical fitnes fitnes and " thereby lengthen work Jo Toxicology Toxicology Toxicolgy Journal origin seminated seminated ben throught the includesincludes Duoisauny results Sept. seminated spread form-Eng- ditficultditficult throughout form- adjustinet such placed leneverLanza satifactory methods WKOMIposd #Myvers which suficent 62909 kupational to Philip wholy contrling teria tempraueocupations the employes requidreinove reviewd yRoylim sdisujd RexamintonRexamintonRexaminton Drinker in subject briefly program wil with the irtaion protecive producing extrnal Paquosqepapuy tUNpnsO. $,3904510 subtances is No.Trunstey briefly dealing protecive ocupations 1916 subject program protecive ayqacws otherwise tt DAIKVL paysqunsprogram control use measur . uanpuyLayisuSen may result Sypdeuiast Interaionl Labour UOWIEO. yELYINs, JeNUAI;. UONL~ALStsVND. tysauy, mespus, the*pucritesause LsrITs,nowas- snosqy yearyinp AyoPaisonus Kypaey2y9fe4A:- OO. into the atmosphere atmospher After AfterAfter the spread and must indvidual further used satisfactory must reliance reliance which protection protection which are various methods various reviewed wil since dust paper UAUys in dealing 94) detail 0} Cc Sh JIIy folow iritaion so include Suny ay Jt onlO.Ij3* YE UCL. Us parr dvd. proces Duckering now elasticity Duckering process proces soaking soaking soaking drying solution drying air temperature temprature few ocupations sufficient which conetraion which concentration conetraion effects untoward ef ects casecause In auxilary auxilary auxilary used and jo ase uta Suow: there curent There would would bacbac- man 2927 external external measures 30 -U63) stacd yo 280s handling the protective include of protective ow S409 < vay oye Izy | ys. og: sen sd1EU ansey clothing clothing ycO> 0) BDUE Jie pre *(0 > 90 ONs 2: Aayt results in disabilties which employment continued adjustinet perinament certain handling poisonous poisonous substances substances uss psu saps wu Jaq yurgy cases an and discovery discovery discovery of defects defects and ciation such observed dey an * should February Herione 10 Mil s Industrial Labour Philip injury employment employment employment but reinove Drinker employesthe delteri- prsud reemspulolytes trist zuLy Schwartz paie;- 2d0.,; required 1936 1936 the otherwise deleteri- Trunstey Sept. Sept. International contraction contraction contraction coOntrapction uo International bad eo pun pa yo Vstpe sey w sy7) i] ay rnp v1 a a: ane; uF * WINE EMP 59 Han s jo tudo Ind' ledicne MaUsED Sayers Diseas Jones Silcosi sultingsulting in Sosa JOU ' HEYS SYP 18) J Han s and London 1923 F. Vol Washingto piogpaie supresion Dheays lergy Cum " Southern Southern Medical s Southern UnknownMerwther Coal DalVale Public Health ofer engierd supresion safety 1.199 Savers Savers and ung Actinomycsi Health Minets Lancet device engierd Reports Reports lealth Series 11 Industrial Inhaledyosibas dust designeddesigned operated instaltionprovide JorDDG International Holand InternationalJ. Actinomycsi Occupation W. Texthank Health HealthEfict Service Ayusqe sense hazrd qwen bege elphia elphia 1920 Blomfield Blomfield No. Texthank Haz Asociaton Control Prevntio iti more minmal dustines dustines absolutecontrol jutomuch case | agers erviceervice Reprint Reprint 1215 Plating Washington Staly bras Ltd wkd O18 Stally and Stal yStally Bailiere Qe Bailliere Journal Bacterial Bacterial Miliary Merewether U. Miliary and Medical Company Chemistry Company > Wm WashingtonWashington Public Health and Thomp . R. National POSMUE Sayers 1936 Hane Jones Sop Silicosis vd in sap) Silcosi R. and Jones < QUE Wwtae and buoy Simlar Siliensis . Se ference DalaVale April Washington Washington Drensen s Drens en Writ en Inhaltion Health Dust Inhalation Spuo December 1935 Silicosis Public Buletin Industrial Pulmonary Pulmonary Dis JO mge d v2 yoo Iq) Sern OY cguyenaby Marble and Waldemar as Waldemar Inhaled Finishers U. Observed Public Finishers Control A. J. Francisen Prevntion culosis Asociation Asociation San Francisen Prevention of 1937 California Tuber ang 4 Liup sa gues y sey spags wag 600 fredom dustines was so fredomfrom volun 8.0.00 owner state held however ED supresion plant owner exceptional JY the A) fre dom sulting freedom freedom that eficiency This This offer the dustiness dustines dustines little little exceptional exceptional satiss satiss interest to and define and plant WOW Iw device device engine red that dust dust ve supresion instalation instaltion safety threshold threshold provide tiro- tiro- tend tend which provide lications provide sense disease disease security be auytection pers tection pos ible rushing not rushing and air rattling rattling minimal residual pathetic og residual . residual dustines a chips much is no alone pathetic dust low more more find faith defeat efectivenes efectivens low hazard hazard f af ' quality threshold limits industry may may that hygienist broader first O) oSHPTS free S. Jones and Health Jones Health Bulletin Buletin No. DalaVale DalaVale June Chronic Cuting Chronic On Laters Fur Struly Mercurialism Mercurialism 214 Versdyo 1937May SOW wate Iralth S. Spry SIS Mongeysay .sopeaids JOs}u0D sersap May Pyaq ysnp Yeuordaxes poeada SsoUNsAp seam pegs Bulletin Buletin No. any aq pnp IsMiU pug & SOA sre soy sis You SURED put Coudeay TheYongs Enginer's Part WOT) Part St pace | a Pte say The PIsDTcroecd Enginer's pT Enginer's Enginer's MEOpPIy Elimnatig TheEnginer's in yyy 3p0dedy App The Enginer's ARTHUR ARTHUR auwe ARTHUR Asistant Asistant Assistant Leys20}9) to Asistant Manager Manger Manger , ot) f As istant you | yo sy By Engine ring Insurance Insurance Insurance Insurance College of PAIS SSK Chicago 1934 No. MODAL Surgeons Endustrial Confernce tional1926 Confernce piczey apasdaseasip Inc. Ayres SyNy Confernce Cea ayT SHpaymouy persinpuy *syadse posed WMSapsvojo) CFDA avon WP yo snp Chicago Compensation ludustrial Endustrial American laws American Workers Workers Workers Conference Noird Inc. aued SMC AYE se sab SOpT Uy Sayp oy po JO Hog St PNp DYE Jo ayy PRY UY cyl Ue Op IywaEdsPELISOD stagsslipp ase pge BSD. SRIEZ ays Gs yo Elimnatig Hazards Baysexd Saesae YOu. Jug Dust Saigupeqad DustDust DUD pues Elimnatig Elimnating DustHazrds twatsdoursyjzdApiygequsdnevr's DMA Iyd Jory Hazardseap Eliminating Dust Dust Hazards Hazards yy ayy Inv ayy Segaaside yuaipse JOINSON JOJINSON JOJINSON JOJINSON Cy Liability puns American Mutual Department American sy can sige Mutal Gusyenpt poyersit: Mas Liablity erates partment Department American Mutual LiabiltyLiabilty American U1:> axes pue yueqy must that reasonabile fans safety expected ducts and and was respirators Control Diagnosi DiagnosiDiagnosi andand Control us recognize recognize recognize some dust of aspects the aspects to socio devlop legal control in order ddeessiirraabbllee this dust control the diagnostic diagnostic considerations considerations considerations considerations we can control the the describewhich describe describe the hazard from sanitaion the environmental genralgenral scientfic from scientifc Suey & scientific expctedvey sae Fey In nature of exploration features features by puw from pl~-ysical from the aspects problem problem problem sojr0p engi- fate onlysizes but the analyzed program yyey respect respect engi- and these HOUtium from control the equipment specific and com- MuNEgtRED equipmentmaltemperature be temperature temperature echnical UOD he or PEC echnical analysis injury injury causes controlinjury which whichdevlopmentcontribute contribute SEGE: lscalth HOmy.,Hprwsigy physical Ot physical andeconial wil andeconical We [OULY SET obey obeyphysical most UE jo D law physiolgyphysiology dirdeircectteedd andeconical causes andeconical imediate KD goes thethe hazrd vans LEMECY waserig plant the dustdusthazrd acquirng handling That oes pue given gy given nowledge nowledge wOrduyrenay nowledgmowledg big ultimate yyaringe mowledge yy largely together empircalempircal mosely Right mosely and Thereare end ultimate the problem the double double acquiring the whole problem Right problem largely empirical empirical empircal largely judge empirical oateg mosely togethr estimaes only judge scprunescarieda.4 estimates to judge There problem oy There areestimatesestimates health judge themag judge itis D auety that misible eCog misible know tiers YOgregate bothersome indviual puc ,8wa8y -ilcosi breathebdreathed not expnqsiuveartz Napuey be eucgygsusops4ypus $268 breathebdreathed ul Lh *, ~ waynes quartz ot) clean clean estimate missible andand ggregateggregate very bothersome actualy What actually actualy known by respirable workmen workmen quantities quanti esquantities quantities of 29q BIO "y FUGyYy wa respirable ae , health knowestimateestimate itis that individual expensive makes quartz quartz makes known 4 contain respirable quartz quartz must sauep -ftafn oR . pue aAutvUrny, pur*<i3016ex0iVtEgwoeig Hb PUR(.sy umong wasiFLvyeI-Kysentag OFGE ag) TEpray Wy perscagu ton. Jutesagaygea 5 Kryelye Sr. . UHI measures measures measuresmeasuresasi auSsp2au instaledinstaled program scientifc SasNuos instaled probailty industrial supres neds tcronesaitdemreanblte considerable n,eeds quDles JoI UYois reducedthe probailty vOusad TAEIPsU9d reduced insgficane diseaHygienst is majortreatmentopera- UYURAL NOD $8 The much Sy yo include opera- Our TheIndustrial interst naturly geldoin anything ApoayID paczcy down safety con- T be first folows performance and performance design ptredhicatiton prediction predicton gad insgnifcane of industrial ano pu industrial disease is yo insignifcance oq Industrial Fpprey Hygienist 2 Hygienist Hygienist YO would natural y natural y , would silica far not not is hazard hazard dustines If dustines safe to alone . On specified specif'and interst alone WapIVE other silca specif'and specify countles_shops countles_shops snp bearing other up not can upward specify & acomplish Fdanjytadx the bearing Much might silica might which ysouazy be countles_hopsare We about hazard said relatively *AIGSUOdIs advntage quantiy diagnosi whichdust health the QnA which the which diagnosi hazard enginer hazard many KY sayy quality acquiring acquiring quantity dust The acquiring dusts of pr^- all much The dispated quality peywer this licen enginer Tonage juE Tonnage gross much The enginer pneumatic conveyors knowledg mustand may the posp03 asQeays remain enginer Apr08 medical has micro-micro- proper medical It produce pneumatic proper proper ase YE medical problempathology rays and produce produce the Ut particles thehalf contaminted entire hygienst doctor SAOISP [O47UOD CAopwe hygienst doctor can Mes] anf SOSH combination specifcations APIN specifations dustines they handling handlinghandling study contaminated contaminated Industrial hygienist moved with SYD Engineers language that happy specifications are hap y entire 40 half engineer engineer engineer of per doctor capable of dustines Jy OF Cys Many quite capable goal in supresion Industrial god supresion the healthhazard all purpose the unless supresion of JO pu ICinvestigation dust health hazard purpose purpose of yuaUNEIT hygienst the Paczey control At presnt There avey investigation and control For in present discusion interest were were never I discusion their with pesipue the engierd instalions SyrIS aynqsworIUdNTOJALID the doctors never pIDIp throwthrow SiCUNySd hygienst tpyeay hygienist Jo pears . .pus pue (pM ay) hygienists ouy The 0} Cyd aq believhygienst TheSE saicnuysa UIxYIOM Topsy seKpeu apeuyn 29479301 ysuypw sy Cyd Aq aIp qi ay soy sy1 ay pap Op 20g yo poreiusegnd-ueEI? swoayiog spuadap Ayens -yuegd you {3q0 ono 31)YEU pu 03 go $903 SE nd ase ayy ayy pure JOU re8 Sq . JuEIsy sauca Iptiew YEA yur adpay way Jo yo jo UE yuaCos *ywatrs ayeMIaAs sanyuent $9PCIDEe pura paywou: ayqiesn payers, pacze: qYyLD: Gasce, asdy], Spas.span yetnay nop: guyy $1503 yy sua: ay sys pir RY} ss.wens Hey ' f195 sey: > 7 ro + Huy 2 1 i Ml MOYf JO POWUE SFU SMe JO Ad0 AML Gdng below se m phenomena principlesprincples bear yuow upward below se viliun viliun particles particles pasa below graduate upward ing medium particles princlesbear pu percentages and 50 million million percntages percntagesand very syenb physics sond dust practice a) engiering taken safety Me 4jag safety hands mat er instal tions 3q responiblty engier study the whose whose achieve and the hands very dificult maintain maintain installations instalations and niedical responsibility Spy 1S HD WNay Phe YL OR wil - They will- trical for 6 trical milion milion silica explain low silica virtually expensive expensive virtualy engiering declartion of declaration declartion the 'Dust ventilationthe groups groups in ventilation MeMNY $ ip tf INE ry Sie. dpe DE JO phenomena phenomena are all dust'and practice enginering behavior must must control understod and ventilation the not menagtitneerr SOT) the responibltydiscusion should anlyzed detrmine tonUeEDdetrming detrming determining the chapter lies responsiblity -Z hazard discussion sao as duction be determine dispersion oy bility segregation segregation enclosure enclosure wet ing sputag intende that be "Je that given exhaust and general general ventilation pasand scentifc treatment not aplying producing engiering ardous In instances enginering instances substiution ayy scentific work material methods gueswhich ye engiering aq kinowledge kinowledg behavior ations ardous specifc subti on physical of exploredexplored Ssoy jou air machin- enginering perfurniance are bad ery dustme Prequiste Knowledg moving spuipau was instaltions design designg spony are becauseIn Isai Knowledge YrYys used DYCI the ayrde Prequiste syN1p physical WOdN capture Let things moving few IsMI pointsmoving dips do opino engier should hods and opinion scary ue , methods physical perfurniance perfurniance physical perfurniance Jey) JO Prerequisite Prerequisite Pre quiste recite briefly of know this enginer which corectly Lone corectly ssoy how sampling catch Before selcting consit and source cias.{s sampling upon Surveysnot depend cleaning a sampling Before puc samplingsampling survey make and and sampling applying instances qust ations have specific behavior a aplication aplication be explored machin- implies enginering I plant intalations designing Knowledge engine r should Surveys must catch systems installed generation points generation generation moving hoods soy and that known known and be consist col ection in houds system col ection cleaning zyL> selecting selecting hood Spsezy the reinfocg reinnforocintgmotive bends DoThe sbameegues gues at the hods bends bends to may SO The consumption caluation motive calua- Didyronwye You dealing sng calua- Reniember Vd knowthe flow areissize OW axial flow bears that must spout tions pees ty f IV JOP Wee VP pe qd hoods the can ot Loss hoods at guessed in the must take must be guesed the at be metal reinforcing withsand withstand erosion and account acount withstand lem selction op power power give the prublent a matter calcula- system calculation calculation system consumption system certain certain certain laws the the behavior laws axial work not think 1. You pro- pro- rial weight weight small flow and radial wheel and bears it performance pad le na sy whe l Se it Physical durjosu0ed More Ul 'AGNIZV1ay selction gravitaion setling apartus set involved quarter JIC caluation requires filtration methods up 4a $,103q behavior nobethhaivniogr bigcylmes acesiblty achesioblwtychamberslocation anddolarsognized ned perfurm what acesiblity oalfinter Design'ad men aur physics physics and cleaning engineering physics apartus into methods depends gravitaiongravitaion cleaning what any metlinds for discharge discharge through through deter- of sizes The The of use should and type how much should of ers and their each nothing of cleaning their Design'and acurate cleaning calculation The The uf dust dust filtration filtration budgets more more knowl- knowl- knowl- know chambers chambers the non non ofognized ognized what kind ognized has kind 10 inter location this etc. are 2q to the determination and and air do for than many involved for for this men who shape handbok done sort date date Asociaton devloped acurateto checkenginering the behavior engineering detrmination instala- instala- instala- asnw ards Systemis Asociation Asociation For kiwa how respirable dust distinguished count dynamic 41 weigh respirable dust fieq The aero charcteristcs of distinguished distnguished fromlarge The charteisc weigh dsnp from masses non- appear because because Saedtysope AMOS Doctor's Dust respirable dust thought be DSUeNIG Sdg.MY? LAZENBY respirable non- litle given given respirable was dust which complicate the to thought thought was them fomul how wad He complicate AN[yIsod must know thomsails hoods in distnguishedistnguished conditons entraping industry posiblity Maryland Casualty M.D. know where dust foods conditions the possibility sources fromprincplescondit s wher entraping andmuch posiblty for distnguished 303g normal normal He the entraping industry of dustines normal factor Uaityar lies velocity involved dispersion sources dispersion principles dust static system lies rate and the veloped veloped detrmine known the dispersion dusttheHe because suction related related must flow is how enters the known It much problem velocity CHEF part material eurivONDyd the whatfracturing is high types just necsarily and use they certain material dust created process material tial exhaust velocity to in dust APM 39) $0 HE Doctor's Doctor's Part Doctor's Doctor's HOURS 43989 The Doctor's The Part JO prmuy MOY wg ase $f 0egp 9p SNE Chief A. GY Surgeon By A. SONELD etArOnyOALsUpPoIYnAdD Chiefprevention encgoinfeusr'ison Surgeon Wavy JIE eo as prevntion Surgeon Surgeon Maryland diseases even aq DE) dE Chief ued Considerable Considerable Considerable confusion OP past Considerable Considerable just what confusion has physician's existed the just prevention of dust dust 9q what what is engine r's enginer's It is OF upon Controling Dust Controling Controling ControllingControling Dust LAZENBY F.A.C.S. M.D. Casualty Casualty Casualty Casualty F.A.C.S. Baltimore Baltimore F.A.C.S. Baltimore Baltimore Baltimore the the disease recognize recognize finic- recognize disease veloped necsarily not and and necesarily tion very tion analyze the chemist and petrograplier les survey tel atsurfacing surfacing entrap JUCTAp-OsaL sciences throughcasual physican's theindustrial Any cami^l created aq proces (esta)wchzaartmaterial les survey process by je fracturing fracturing of the high cami^lcontrol the enginer enginer enginerused surfacing spnrmsengy The physican special what is AHS 407 physics inteligently inteligently inteligently inteligently motion physicstaskthe airresit- ping sad manertrained entertheir JEUNE means MONI motion turblenc tuas anceance both KyeOF stream velocites movemntsmovents motion into low and ofdyqeautsa work OF - motion , flocculation movemnts floculation Wher problem along diseased discover physican tium efectsefects and laws should of know the motion resist- moving turbulence turbulence SF knowterminal should should know to ef erts of air humidfication centrifugal mo- motion He csqpnedopenpesd knowal known overcoming overcomingsevralwetingthes elments howparticles behavedesignmustan along firstexposed and workerspreared to ocupationl example paenda must the humidfication it Spucy SATE must know about of ange and dificulties what dificulties dificulties about overcoming known should know dificulties 3) Dye Ay oy Saray JO gon Won cragpevan DayrE Tregnarz Papuansevral Susava Buydives tenga PA Sapgusidrs das UNszad CS petsapnus auN-tUEaIDS sanyejas Sages asonyw nea. MapHan ADMgreys O94 sprtecy pagean ar elec- tant elec- ard J3praugp 2 weary spsargo *i92 velocities velocitesmachine case of a machineothers as velocites velocities velocites cleanig thought in must stn JO vious their to BLadeVay solve problem must eforts IBD wyrang Berenaga physican through throughhis be tell the the enginer enginer hand physican's physican's in dust physican's given reality is not the the physician's physican's ofair velocity must and velocity be and velocity VNU IspMOU Je know dusts then acount SADMGS be de- the take pipes low Sasi discover complicated to through with pune DTaRy DAUD dust signs sized the velocity piping should high problem which go must manner which de- JO the ayn trained trained veloc- a St to dust with or are dust must taken 20 od OF disease . disease disease disease sized these UMMUU] Presure exhaust exhaust exposed to exhaust USA dust elments exhaust MOY dust inthe design design oye Moy any Ct op exhaust aya tp) Vea OF Isp se pnp Ceug) Me o7 spay ay cre ay noty yt JO a tet yp ap wer-ipr (trenae ye 997] pure ang pp aga AeA year many sreary veng ay ty uoy es -apf se 344 asetge fib tee the body and dust nor harm to atmospher examination means means employed employed per- harm examination render the The physician physician with physician suceptible already with are already peculiarly who to studies the industrial workers able the studies to detct are are of example reenqguiinreesr requires A must be prepared to Jo att) aul sea Yer yo oyt TT siy ysce $3 0) SY Cuy lrg lege caged d an Syleng history history ocupational ocupational ocupational WARE pre 944 54 1292NIG aE MOY dep ->any 2 ay pus istiur pe ey = > 2 Up apie END SUOSaLD ener F ay Noel (as Phe bras Way We De that Pe knowledg knowledg knowledg as to adopt PIpraN worker himself family workers activty knowledge hee ry] Je conetraions hazrdous knowledg adopt genraly tuberclosi hep| CL hazrdous vee Cao SuapMs>- maydangerous considerd considerd as harmful bodyconetraion quanties harmful conetraion Dep standpoint dangerous conetraionnioxide particulatecontixng size10 than voNeuwEXxgq-ay as complicatng Complicated treatment Tuberclosi Tuberclosi remotephysican 19345840pape raely the HONG properties general 109-0 dangerous Sesqynd3) a^"licted silcosi they Cg ss because corespondigly corespondigly recovers comesdefinte particulary particulary more genralsi pant but figures the well pant has been hazardous concentrations concentrations concentrations concentrations | for pant ts when concentrations excessive quanties considered inhaled excesive dangerons are dangerons few few can the general properties groups Those which may divided into dangerous regarded their dangerous dangerous 10 of their be divided three decrease are dangerons because because because of increase > CI4YISCSU Sy He Ep, Vpe my real knowledge Ada We havehave noas simple simple op knowledge rule can practical purposes purposes purposes can that withstand sucesfuly thought the Speas of dust particulate particulate in concentration concentration concentration per cent sow excess oq particles per exces the percentage we {cu 5,000,000 of in particles percentage percentage cubic silica If can corespondingly increase conetraion corespondigly aseasip the the dust conetraion concentrationwith compartive compartive 10 Ey 1b HE 1) Veep worker his workers aptes but workers public acompany- (qpeasn suceptiblity tuberculosi susceptibility ing public generally Ssapeway acompany- susceptibility tuberculosi by Complicated Complicated Complicated Complicated Silicosis Silcosi factor Tuberculosi complicating complicating complicating silcosi recovers treatment acompany- Tuberculosis Tuberculosi Tuberculosi TuberculosiTuberculosi Tuberculosis silicosis and indi- treatment amination a^"licted despite himself himself abled ays suceptible whom whom he comes not only totaly contact contact particularly particularly particularly dioxi~ veo dioxi~ silica dioxi~ activity tu cent quie cent or reactivated reactivated second abe second second physician second amination is more reason of cosis than of and similar similar substances SIYGW-OD -Aucdiosze subtances inflamtion To portion atinospher the time spent which importan important time spent or meremy Those onlysubstances SUD most most along places produce the portion perhaps places cause substances Jv v} -Je 39S count count the iritaion in the the given SIONZIG] discovering month respiratory respiratory tract bronchits in coneption percntage inflamation dangerous month resultinglocal conception J}OAg exposure exposure ou) bronchitis inflamation atmospher . flour relatively cubic percntage discovering Cnucy vegtable fre fre total num- dust inflamtion num- WOM thuse cork persons St substances starch substances relatively relatively SEOING] produce inorus under given those who alreadysec- inorganic inornus conditon PynoYs tuberculosi and quantiy and orinorganic fot discovering that ready sup organic organic inorganic materials materials . Ayjeszu23 5,0,0 be JUdPIQUOD posed tuberculosi fibrosi the sidered produce yng OF Those which which which which produce respira- relatively as posed predispong fibrosis tuberculos silcotic the , thereby thereby Yprseany tuberclosi conditon conditonnust regarde pascasip tuberculos quantiymay predispoing tuberculosi hebe esntialy infections indivdual de- syqnd tuberculos no unsafe infections asbestos infections tuberculosis tuberculosis such CpryeQdarsce tory lungs silca 5,0,0 5,00 3A0251) tuberclouswell or mag- esntialy require should disturbed espcialy dioxide HEX recognized dust silca where silica containg IIS mag- 313 . my dioxide ase disease confie chronicty until thorugh syphils saya nesium excptional excptionalthirty wil poscuya dioxide carefuly syphilscirulation confine remarks fewfewexcptional for wil he Putas confine category to instances require containg pur Fert shal my latter latter multiply we particles 5,00,00 relatively safe condition mind great that exceptional wogker's wogker's wogker's JP JO wogker's of safe the If result may may con- over E yo esentialy silicosis es ential y chronicity chronicity Except in OF worker to yng Yons 9} So HON DY perhaps necessary trade discovering Wt have Yor discovering FE whom OV pre veloped well os uci dioxide y physical physical examination important places in physician lines rusty necessary are of from from bar ing persons tuberculosi ar ested possibly possibly already already silicotic in have infections SUV seq indivdual individual individual exposed dust silica undergone undergone has including examination includingincluding including carefuly tract such chronic We dangerous dangerous normal of In disturbed be would licart ' & Wope SUD crystaline O) VEHE SH ter andou crystalinequartz quartz was crystalline its crystal ine sharpness atnidon is now sharpnes known particularly particularly structure harmful particles its particles MTU particulary AANA cause damage with are sajna a) puciyew terfenctransiory apdius inocuos function wenry araree yeas innocuous relatively inocuous which whose which moval transitory the FION transitoryexposure & wes moval moval from from dust to ou se Chemical Effect Is pong Aq Chemical Cohemfical particular particular Thetuday particular oaey particular peonrEad silcosidiseasesilcosi owes soandy harmful its lar~ely chemical aN aang Joy harn~-ful to lar~ely curring dioxide - ofbecause harmful because U9) wil greatly the aq alkaline The velopinetvelopinet This concep- concepdusts {vite mechanical Much in- dusts which lenis mechanicl cure symptomis to symptomis which subside symptomis re- how . upon re- respect Harmful Harmful wo efcts ususdustdustsdusts that UD Later interst efects very very reaction reaction oc- body inhibit inhibit the reaction reaction coincdent dustdusts dusts combined hasten silcosi may silicosis of silicosis the WagEY now under latter with some some JTAlP - ies the de- prob- way now never is have in rapidly resarch CEU silicosis learning learned rapidly we knowledge in thisbut learnig Our sysnge prevent removal removal this knowledg limited zone the {SONS breathing worker the may show worker discoveries render dusts contamint yUIpUIOD existing dusts withdioxdedioxide inocU- praudrza wil silica contaminat suede will its veryvery great us JO contaminant dioxide as , aqoad WOM] tions discover the existence discover but existence mn but discover to discover PIUSEDT such dex exists diseased man man such diseased JIADU and sop aavhimself himself contact to emphasize removed DALI] emphasize wou anme unles ss DAYqq examination examination emphasize unles F1If]of properly gross tuberculosis yoaes34 takentuberculosi ofSE gros YDS fore the function conduct maner yrngy SHULD} 0da}ndgent maner maner persons pre tuberculosi of posible silicosis . discase dusts those those posibletuberculosis silcosi tuberculosi protection tuberculosi il or tuberculosi tuberculosi to protection protection protection OF Re Examination should tuberculosi whom industry StsOIS industry conies Letconies sucesfuly from uselsnes a physical physical sucefulyphysical acompanied be acompanied in cases except of discover except the physican avcases physican monaryman thorough physician there- there- the the sucesfuly sucesfuly pas ed engaged physician must be fibrosis fibrosis portant to thorough portant employment complicating examina- employment employment examina- examina-complicatingA complicatng complicating WYP tisues decidely FROPstuy AISIND decidely invades life- irtan disablingdisabling industrial -d32u0) employment the gardles gardles It holy silcosi JPW of discover SE destrucion usaly PLC from ravges coincidentcoincdent who from sufering pila that tisue AY UY tissue of happens silica part to invades iritation iritation local invades replacement replacemnt replacement of disabling is tional Thus tisue ravges atributed pace often person excption pPIsodn pagequy and of kepkep culosi craftsmen replacment AKpay dust silica containing Thus given containing ability given concentration ide containg silca diox- abilty excption in 1NI3IU0D exception weey concentration sizes small or which advncig years snoauy sufering caledmade ployment Dep might conetraion ultimate actualy woaq in permit ays enough concentration the situation their industrial primary ployment spaces bring wake tONauAy or healed conetraionentrance caySHO. angsey worker danger bring have offers sz to situaion silcosi not the It SISOD danger the asvasip known gored dag worker Mjsaeps silicosis seseqy UEPWW air spaces which sry which EDT) tt situation situation the C 40 Ser Se sanydont Spoivads jupiascy agn230895 paryaq industrialsoudacys Ajancgas Asouiray AypaidayFeo}pacy JurDYAS pusaus dNsI0 mMIsze zQENb Afa8ae]Aurasnd"sansar 4YSNOUD mooy aso asoy nog F150? ?ayeS)-np pyr Ayu0 ese T DENY dz0 Ez senery Wyn se ayy yo 4309 HM First should case who actualy industrial develops develops FENP<UL ployment has course course that realized IY] who Sisop pace the Sy, II Qne) dsoipn the dis- saya syayy atributed Jay atributable silcosi other other 3q aed indivduals incapacitiesatributable indviduals car y To which advncig great SM OF UNOUY qualites that JO sdYyE onlyonly the soy yen abling asuKD peys sey sem mots PRUE SAdygu S P amination discover culosis A possible individuals should The threfoldpurpose purpose sufering employmentfrom tuber- a quiescent an quiescent 01 quiescentor might be suffering called primary is wel a childhod exposure & os & exposure yeIO, PUL wosy Oy Yo JU Is Workers Elyar- cuters cutters SE se ms similar similar and economic so on in- carry c qualities uda0s us 0] Saonc> ans1) saoeds "sans yy apy EY aut geaour Aupay sony si np sSury su puc uot) vs Br ose aac pony | IH yp M1 Ja Aq ape de Ds ae "I! | ' a i eee oO : ce eiat ay : x yr zt ae ir e td pat Sse te ie 5, 24 L} f pet 1 = tx) i i At CY ire { se bP re ce SE 7 RE aye ray za STE b I Ry SSE . cast | tass eee arrUr ov 5 sae RAS aee,eaay, he : TES? TA be eeee SateSag, rag se aie w . <. SeLae wUgLSAIgO, trs ai tae tf Ht! okore SUE b:hOyie AD * ~ NY De i e : = MS Wiestse es ie id Dad EOROE:Fedeek Seol, Oe ag eee ee OEE OF s MRS igh S pra mS ig. Tats ; Sta 98 Twenty National Safety Congress They should be denied employment in a dusty trade if that condition is found at employment examination hut they should not be harred from continuing an employment in which they are already engaged Of course in such instances you a engineers must realize that you have failed because if you had kept the breathing zone of the worker free from dangerous dusts silicosis would not be present on physical examination In this work of preventing dust diseases in industry it should be evident that the closest and most intelligent cooperation between the physician and the engineer is necessary The physician must through his knowledge and research tell the engineer what dusts or for that matter what other substances used in industry are harmful He must tell the engineer how such dusts or other materials enter the body how they leave the body and what they do in their passages through or their residence in the body intervals conferring with the physician physician an to effort discover whether in the light of their joint knowledge working conditions are dangerous He must develop and install carefully designed ventilating equipment He must arrange for modification of chemical and other industrial processes where suchi modification is possible and must bend bis efforts toward removing from the danger zone of the worker the offending substance whatever it may be Too many engineers construe this function loosely They pass on to the physician as his responsibility certain functions which es- = sentially are theirs such functions as dust analyses dust counts and similar technical duties All too often it is considered adequate merely to install a fan Ventilating devices in dusty work ruanis must be constructed only after careful en- gineering study has given a knowledge of the physical properties of the air and oi Must Make Analyses substances polluting it It is possible to calculate to a very fine point the volume of The engineer must in turn tell the physician of the harmful Alusts and other sub- stances surrounding his workers He must inake chemical and petrographic analyses o^> the dusts and other indicated analyses of the atmosphere in the workshop He must make dust counts and check his counts at regular air that must be removed from a given spot remove the dust originating at that piace and the engineer most approach his task from just as scientific an angle as the physi cian approaches his . for There is no room in industry for hap- hazard methods on the part of either the physician or the engineer ADJOURNMENT m e + \ 2ey Sid) : \ fathaass efhae aaAf toheie, if) ai Gort 8Pe wee) ae sF- woe . . we checked and repaired checked checked and repaired repaired it : checked checked and repaired the it aman from each it then one and we will as ration addition sung- sung- direct it man from each tedious, with him to safety carried elroytating rotating these meet in ally have them completion ng these permit permit to retry work work permit further . WGAlso will until say meetings meetings clear the ce we can clear assume . you must men are to that rules and SESSION our safety We the ag addressed ttety 5* Railroad . telephone safety Co,, - + telephone Chicago + rntelephone telephone Co. Chicago . we difficult difficult problems problems : rn the foreman his clear safe during of taken + this measures have taken + to we must that feel . its his do something about about to accident accident . Cement and Quarry Sections Concrete, some similarity Cement recting the work of Cement in cli. any man on in cli- any course similarity procedure but jointly recting the work employ different such industries our give types employ any jointly such different vamriiestty people such : circumstances circumstances them supervision requirements foreman requirements direct safety a best safety problem of under requirements upon wide diver- that the them more tedious tedious meet comprehensive comprehesupervisonry sive aspects of and carried closer type industry treatises on peculiar leadership give 257 training AMY supervisory training any par- supervisory any par. training course any parindustry industry lies within that industry We out industry being as being see how procedure supervised how we of of every foreman analyze and supervisor compare their supervisor and select the best look supervision process process itself itself upon supervision direct and how long long . work the people is which and costly process completion through through pay dividends dividends the ad- further . assume can the WEDNESDAY LUNCHEON . ; October 1937 1937 - The Wednesday ; The Luncheon Session the Work: Cement Wednesday Wednesday Luncheon session Cement Quarry Sections addressed Isaiah Hale Superintendent Superintendent addressed . Atchison Atchison Topeka and So antaf Railroad the # Safetsamye Safety address address substantially substantially complete another another Steam address Mr. Hale being Steam Railroad Meeting Railroad paper he found found the Steam complete , section this volume Railroad volume Chicago _ facing WEDNESDAY AFTERNOON SESSION October 13 1937 : _ Chicago facing weconsidered the foreman or me that foreman foreman - me that conduct conduct work ta sure that does sme that a majority of all me that majority of ile to accidents accidents are directly vel accidents the failure that function properly ing that supervisory supervisory of a accidents necessary More supervisory supervisory it of a more difficult procedure . it technical technical or zed, se Apart from the zed there does not . i : procedure tech- of . . . . Work of the NatiNoatnioanall SiSliliiccoossiiss Conference Conferenc. e By R. CAMPBELL STARR : Assistant Safety Engineer U. Silicosis WDaesphairntgmetnotn Standards, Medical Silicosis strictly strictly occupational disease as science science has reported silica dust affecting as affecting individuals except those who relatively long periods periods time have worked which worked in atmosphere where the con- which breathe contained excessive concentrations concentrations of free con- LaTbhore Liabonr tLeaborrest interest of U. Department prob- broad (2:1) broad social economic Organic lem such as Act, effective this has origin origin which created effective March 1913 which created . of Labor Division Labor Labor D. C. the Department Department things foster foster Department Labor the welfare welfare the promote develop develop United States to improve earners of conditions United and their working advance advance opportunities working conditions profit- able employment employment employment opportunities profit- With this believing believing that through joint effort effort all could done to eliminate eliminate hazard the Secretary Secretary of Labor called ttoogetghereWthaesrh-Wasthh-e Secretary of Labor called together in Wash. im if | i Hh e OE . 5 - Rim EVAR Uy peer Z23} Wi . S iy ? a 3 Pe 24 ot 7! mr xy p12 gy eK > re het . = iJ : i : 4 ds So Se TR rts Sup El BER NSRaUIES es. eS MARL ai EO 4 Br AEA " A a + Pry dt A OO a oe ow i 4 . fl . ; i} Q aAT TN UALS) . NG fj Pee fA jeu call *, . ; ^' A , Gael or 00oF iy OKEY ee & pelt 43 Cor WatSASReesYe 3 1Hi ney ew bagt 1. ad ae ren on"2 t or. 4 at te 2: ted Z. BS, aS Ry oe. J at" 4 phet ie Siis oes td Art Ee M4 a. x i f 3hee< - -~ ae 53 A NT riP e os > b yy) a as = ~~ a oN. aeAts Treentyexivth Natiougl Congress Congress 260 the hazard ttl Must be ccenenizerd tor hazard fact must recognized recognized for the known known facts the in Se that until the fact mustbeen be wiped ont medical conversion conversion dicks working working the silicosis have the disease disease as and engineering dicks legal working workers contract prevention prevention linking insurance instranee those may compensation contract must receive receive and regulatory pliases toward ade- ade- compensation injured workmen's mulerstood enimpensation enimpensation pra^- a race readily workers Accordingly accidents accidents the tical care which will will wer the committers committersthe the Accordingly Accordingly wereumanimous presnting silico adequately the silicovia silicovia profi prof. following recommendations recomendationsrecommendations : program program cooperation cooperation with following Coverage for silicusis silicusis the 48 its program Department Department Labor in- the States section covering in- lise in. Ogee States . be dust diseases silicosis and simi- Sime compulsory compulsory compulsory three This breaks down into main sub headings Assistance into adequate tw. Because Because competition preparation preparation reasonable m Because similar similar industries preparation and reasonable adequate prescribing regulations the ay States the rules and regulations regulations regulations methods prescribing methods prevention prevention assistance standards establishment equitable in the Should Be Insured workmen's compenssattainodanrdsthosestadnisdeaarseds or wise disabled disabled result result program disease em. The Should insure insure obliga- The employer employer should insure obliga- a general educational educational among among officials factory etc. among inspectors Pewe tion compensation through self- they will be equipped adequate adequate 9 insurance subject subject the posting tharuotuhgohriazdee-d admeeth-ud knowledge methud prevention with disease its concerning proper treat its quate funds workmen's compensation compensation me e institution not denied denied under the workmen's workmen's COMmPl ena eaw nontrleaay,, ale should should State authorities certi- ployer ployer provided provided State the State State Follows Lines which that complies proper safe require- working application application e e ments as pays proper premiuins premiuins condi- involved and having having active getting been com^<nienced com^<nienced just principal principal has The compiling along principal compiling concernig Workers Workers havingsilicosis shopuuldlmobnearryemtoubveerd- practical practicailnfoirnmsattaiolnlactoniceornnisng concerning concerning actual Such workers shoukl dust plants together tapyproxima-pical silica from granted suitable compensationcompensation hazardous not only approxima- sites a be granted care payments tims maintenance maintenance installation but Workers also such maintenance of dust contrul equip laure disabled ee - with Workers from siliensis but plants program program visual education education and with grantedtuberculosis ) should ultimately commitivseupplementing supplementing the the summary and Sili- the same same amount of reports National be as those disabled disabled by accicdeonmtpalenisna- cosis Conference contemplated contemplated that contemplated and thus such as lantern Sili- Two years is slides posters posters illustrated bulletins wili in i limitation a reasonable reasonable minimum period for filing claims sulse- utilized Further bulletins bulletins connection with the various exhibits the department connection shown will quent quent thdate of | the last exposure various large expositions department association the Further Activities of the Department meetings expositions trade organization labor fecimical organization ar meetings etc. contemplated much Lie f^/ctualinformation information information contemplated pointing Department Department Lalx~-r Lalx~-r toward correcting ways correcting the hazard establishing adequate adequate tami- has coureire that Department there immediate need compensation there there immediate neyrl ards ards and establishing workmen's workmen's compensation compensation , compensation the af workmen's <tand. ConPOrNA Lie, ian 7) om, Following Following discussion discussion af outstanding Werlnesiay pregram, concluded concluded Wednesday aneration tank Place, This couvlided the Steam Railroad Meeting WEDNESDAY AFTERNOON October 13 1937 SESSION The session was called to order by W. Wood Baltimore and Ohio Railroad Balti- more Md who presided introducing the speakers and directing the discussion + cane eam Gene TAs i : t The Past Present and Future of Railroad Safety o By J. M. SYMES Vice President Operations and Maintenance Department American Railroads No industry in the world Association of Washington D. C. requires nore diversified study and more pendability grades and tion of safety principles exactng than the applica- eliminated or reduced sigcnuarlves have been road industry Picture a steam rail- been modernized and systems have miles of railroad line quarter of a million poweriul covering in a virtual devices have been extended other safety installed new and more poweriul incomotives network the vast States Over this expanse of the United safety devices have embracing all modern network are operated a been purchased new billion train miles annually Vast yard and cars both freight and passenger have been terminal operations are the beginning of the jonuercneesysaorfy tpoasmsaekngeerusp installed This capital improvement has cost the railroads about eight program billion lars dol- and goods and to break up at the end of that of thsaitnce 1923 and a large part if not all journey the 12 million trains that accumulate huge sum had a beneficial effect di- that billion miles These trains carry 500 rteicotnlsy or indirectly on the safety of opera- million passengers and one billion freight annually It requires tons of more But the engineer's job is million railroad than onc snon as never done As make them employees to rim the traine devices new equipment new rail or other ready for road movement sti- are instajied the engineers pervise and safeguard their maintain the equipment and movement and roadbed as well work to develop mure efficient go and in tmits The railroads spend millions safer of as perform the many other duties annually in research and dollars to the production of railroad transipnocritdaetnitoanl laboratory work experimenting with engineering + ments In all this work improve- wilSlafbeety has in the past is today and always importance An inventiosnafety is of primary the first principle in railroad great which might mean _ tions But it is within the past opera- fifteen find itesconomies to the railroads would not that greatest advances have been madyeearisn railroad safety During that if its way to a single locumotive or car use in any way lessened the opportunity period we have for safe operation Conversely seen a complete remodeling and modernizapromating timm of railroad physical properties Road ment mechanical or otherwisaeny improvesafety of beds have been strengthened bridges itself to raiolpreoraadtion immediately commenils trestles and culverts rebuilt tracks liave search for officers and employees The been laid with heavier rail and with long as railrgoraedater safety will continue so treated ties of greater service life and de- transportation is used About a quarter of a century ago the 587 ee eee te TE oe me ee Bm = + me te ms rtsot =w. ~ - eae e T= eme Ses iL rip lt f {. j 4 aa i tr es fe hay, oe i he AS aft pif ss WE sf 4 Asi RDGty 3 que AL Ap eae f. Latte: ao aptBLAsLQSuek hiss Nb ae Ses Cy eee A 3 PACT Eye AGS ro sth) ve Tle PAL, rey ee ane egnsname Sean Kaidranl Meeting 593 ' rtmoe Steam Meeting SESSION AFTERNOON AFTERNOON SESSION ee a reps5 Lf Ke on = aeees sors? sGae Fe baci ~ Sree a myer. & = ata Yeni de the 2 eSetmhe things ~ eam meres zir ike is ssarily ex be for naml fiz in Beata nimi mer sie ee me wll pze ing the a 21 Safety, An Operating Operating Problem aes me Executive Executive Operating Operating Assistant General By WHITE wes Pacific R. St. Louis Mo. Mo. te Safety Assistant Assistant General Manager Safety is management, Safety the ooblbiglatiiongcaonsttructiive olneamdearnsahgiepment management management ffoolllolweodwea d thorough thorough thorough analysis find the the underlying causes Without Without constructive and day- and underlying and the pro- pro. tes executive executive operat- operat- cedure urge movement to prevent prevent recurence necessary its sincerity recurrence wer periuntory activity Proof whether sincerity whether depend pri- pri. we periuntory safety activity is recognized ly marily on management make make The movement recognized recognized recognized by rem executive operating operating officers medium medium essential in the program first authorize authorize expenditure program expenditure money ME executive building and maintaining that rela- necessary make the maintenance maintenance money ttiioonnsshhiipp tenrihchea s t enrichesfellowship broadens broadens our necessary plant safe place to work work op- op- character brings practical GolMdanageemennt recognizes system e Management economic practical application application recognizes that our economic . economic must enable men must enable them creasingly creasingly high fine ft satisfy their fulfill their rea- fulfill wants desires and satisfy celingof Safety Efficiency Efficiency dustrial dustrial accidents preventive AnaAlnyaslyissis the underlying undeurndlerlyyinig ng measures in- i. n increasingly and ; sonable wants and them give them celing happiness and s : security ; factors factors : elliciency . the decision that safety is an Having made decision safety : exeemive problem problem and rreesponssibilpity oenssseintbiiallithtayt must accidents promulgate and follow : management management management promulgate and this through through plan promulgate definitely in definitely fix this decision decision _ comprise the the individuais responsibility both both who collectively industry The comprise follow through compricomspriese that department his through superintendents such and every member member of of employees the superintendents superintendents will the supervisory supervisory appreciate the need constant active interest in safety understand constant passive interest will no huikers will understand results than would the saine . more produce production Supervisors i interest interest interest feel that must be : made demands prevention prevention accidents _ demands demands the that same type heads up_super- their give given given to olfier problems : affecting affecting cost service i executive : : authority : program ; obj transpor- ao complete complete descriptive transpor- : affecting directly directly that itexeciutisve must find responsibility responsibility indicate department department heads responsibility responsibility management's carry management's program authority authority superintendent's superintendent's placed accident pre- vention vention on lands to production production the same basis production A factual of of each accident must made made must be must must made ent that those factors which accidents are same factors very largely same which tend lower lower quantity of production anotheranother another way Expressed another inseparable safety and efficiency as inseparable as though one word inseparable as executive In coupling safety executive not minimized endeavored problem problem have have to indicate indicate solu- but endeavored responsibility responsibility tion is an both to to . individual indiundsutsrtyry eamnpdloyeesemployees employe s his individual industry concern ' employees to concern that make it ttrarnspaortnatsionportation going empluyees transportation scientific scientific in Rail laboratory research research in expert eng1 which and wurkers wurkers neering trained huikers andl skilled Warkers share One of employees employees who are . loyal wwhoho apreciate appreciate appreciate railroad railroad that service will stimulate accelerate . development development of and accelerate accelerate the territory traversed traversed de- development successful solution solution probleni mands type aggressive ag res ive individualism individualism and executive executive leadership leadership leadership in command conperative the of colw lech tivo e collective conperative transpor- transpor- , omtation . of all who leadership leadership Our leader- leadership Our major concern is leadership teades. : A es i Sera heat OLUN cte x aC hat aS Popzey : theaie # 4 5 TIP BEA te ns a? ae Lara tp ha NY ees ie fe Ty mers