Document MK7Dw2bVXDr66M51v1k2Jo9k

FILE NAME: Engineering (ENG) DATE: 1934 Mar DOC#: ENG022 DOCUMENT DESCRIPTION: Trade Journal Article - Workmen's Compensation for Silicosis O ccident Preuention Health Conseroation Thirty-third Year-- The Pioneer Publication in Its Field Fire Preuention SAFETY ENGINEERING " The Magazine of Safety" ' with which hat been combined: Protection Engineering. Conservation and Fire Prevention. ARTHUR C. CARRUTHERS, Editor HARRY deG. ARMAND, Business Manager W E DO O UR PA Jtr Vol. L X V II, No. 3 C O T IT E T IT S March, 1934 EDITORIAL OBSERVATIONS: IAndDCuisshetaralysleeMngu.e.s..t.t.oO...r.t.gh..ae.n..i.Az..e.u..t.Ao..mg..a.o.i.bn..is.l.te..O..I.cn..cd..uu..p.s.at.rt.i.yo..n..a....l 8878 NAenFwirEexYpTolarrknaaptCisoi.tn.y..'.s.......D......r...i..v....e.........A......g....a...i...n....s..t........T.....e...n....e....m......e....n....t 8899 ACCIDENT , AThn1e93A3Fnrea.nl.y.c.s.h.i.s..M...o.e.fe..t...At.h.u.e.t.o..m.P..ro.o.b.b.i.ll.e.e.m...A...oc..fc..i.dA..e.c.nc.tisdenint 91 Pr--PortebecyvteinHotneiononrfyW..W..o...r.k..Ae..r.ls.e..xi..na..n.t.dh..ee.r..S....o....v....i..e....t....R......e...p...u....b....l..i..c.. 96 97 DNreAiwv.eCrA, o. OnStcr.accuAtp.sa--nStbtayanndCdayrrdPisledAReiesntqsruiwairnoerdth..i.n.......P.............W....... 99 100 Ladder Accidents--by John Russell, Jr........ 101 FIRE: FTihrDeeowLCnorsisp.e.p.s.l.i.n.D.g..e.c..l.Ei.n.f.ef..e.c.a.t.s....Po..rf.o..p..Ie.n.r.t.t.ay.n..g.V.i.b.a.l.l.eu..e..s.F..Gi..r.oe 103 ThLeosDseesath...P..e..n..a..l.t.y....f..o..r...A...r.s..o..n................................................. 110078 HEALTH: Thbey PLactRhooylogUy. GofardVnaerri,oMus.DD..u..s..t...D...i.s.e..a..s.e..s..--.. 109 ThSemDithia,gnMos.Dis..o..f...S..i.l.i.c..o..s.i..s.--....b.y....A...d..e.l..a.i.d.e....R..o..s.s 113 CobnytrRo.lliAn.gBDraucstksetint...t.h..e....D...r.i.l.l..i.n..g....o..f...R...o..c.k..--.. 116 HoewrtsoCnomJopneenssab..l.e....I..s....D...i.s.e..a..s.e..?..--...B...y....F.......R..o..b.. 117 MTiselesatsd--inbgy FPahcitloiprsDirninRkeersp.i.r.a..t.o..r....E...f.f.i.c..i.e.n..c..y 119 Wtoinrkumedenf'sroCmomFpeebnrsuaatiroyn) fo..r...S..i.l.i.c..o..s.i.s....(.C...o..n.. 120 INDUSTRIAL NURSING: TSheaercFhainmgilyforHitshteorTyru..t.h.................................................................. 112233 ATunbeOrcuutlsotasnisdiAngmoHngazFarododi-nHaInnddulesrtsry..................... 112233 AInfMecotidoenl LFaoblolorwCinogdeA..c.c..i.d..e..n..t.a..l.I.n..j..u..r.y....._.._.._.._. 112244 A Spray Painting Code in New York ......... 124 Published Monthly by Safetij M aqazine P u Elish in q C o rp o ratio n Editorial and general offices, 45 john Street, New York, N. Y. Publication office, 34 N. Crystal St., E. Stroudsburg, Pa. A R TH U R C. CA RR U TH ER S. President H ARRY deC. ARM AN D , Secretary A U S TIN F. H A N C O C K , Vice President Contents of previous issues of S a f e t y E n g i n e e r i n g can be found by consulting the Industrial Arts Indes in your library. Entered as Second Class Matter January 7, 1930, at the post effiee at East Stroudsburg, Pa., under the act of March 3, 1879. S U B S C R IP T IO N S ; $3 a year in advance. In Canada, $4.00. Foreign subscriptions, $4.50. Single copies, 2 5 c 120 SAFETY ENGINEERING March, 1934 the"Oexfhtahleattiwono sviadleveiss utsheedmonoremoismtproerstpainrta.torIsi, tthhaet ionn halation valve follows the filter and does not close at the start of exhalation, some re-breathing will result, but a leaky valve does not admit dust to the face. On athuetomotahteicrahllayn,da,sifexthhaelaetxiohnalasttioopns, vdaulvset dmoaeys ennotterclothsee Vfaaclevepsiescheouwldhetnhoetr bienstpeisrtaetdionbyhataskbinegguvnioolernnt obt.rea. t.hs. as that is when they 'are least likely to leak, but should bwehitcehstecdauaste ltohwemaitrofloopwesn wohrecnlotsheeaprerelsesausrte."differences Urges Practical Tests torIyn tceosnt c(lufodirngfa, cMialr. fiDt,ricnokmerfosratidan: d"Winhteilrefertheencleabworitah vision) has its uses, it is by no means infallible and the writer personally believes it should always be ac cItomispwaneileldtobybeaasr pinracmtiicnadl tahamtatnhetepstenaestrcaatnionbeodfeavisfeedw. ppieercec,enant dmmayaymeeaasnilya invdisiicbaltee dtheaptosaitlthionusigdhe tthhee ffialtceer iiss sdtiollinbgreaatlhlintghattoowmasuchexdpuesctt.e"d of it, the weather WORKMEN'S COMPENSATION FOR SILICOSIS Report of the Committee on Pneumonoconipses of the T American Public Health Association (Continued from February) HneEcteRdewfraitchtothreiegseSttcihnegm, heacnodvlienrgs,tmheovpirnogc,ebssreesakcionng, awnady thiensetemapdloyoefr mtharyouignhsuraenaygasinpsetcitahlemfunind thcehaursgueadl contacinruinsghinngo,t lgersisndthinagn, 8a0ndpesriecveinntgtootfalresiflriacactoinrimesinmesa,teriaalegrsainwstotrhkemiennduesmtrpyl.oyeTdheinMtheetagl rGinrdinindginogfSmcheetamlse wcoitvh quarries, factories and workshops; and all processes in a grind stone composed of natural or artificial sandstone tohfebmricaknsipuolratoiothnerofarstuicclhesmcaotnetraiainlining tnhoet mlesasnutfhaacntu8re0 aansdgrgilnadziinngg,oefxmceepttalisnwfihleermeacnaurrfiaecdtuorne iwnhtehreestahmeegrroinodm ptreierscewnhtetroetatlhesilpicrao,ceesxscelsudairnegonnalyturoaclcassainodnaallnydcianrdriuesd iinngwwahteere,l aisndenteixrecleyptenwchloesreed tahnedsethgerinmdeitnagl ipmromceerssseeds oonr annedcesirsoitny afnodr sctheaenl gweoorkfs.woDrke,atwh,hetontaclerdtiisfaiebdlembyenat are only occasional. Sand-buffing is excluded from this scheme as it is provided for under the Various Indus tmubedericcaullobsiosa,radretocombepednuseablteo. siTlihceosdisi,seoarsesiislicporseissumanedd tcroiesiss Sscchheemmees. arWe oalrskomeexnclucodmedinfgroumndtehristhonee.other sili twoorbkeedduine ittofotrhefivoeccyuepaarsti,oanndwthheen btuhredeenmopflopyreoeofhatos ScThehmee parroec:esses covered in the Various Industries the contrary is on the employer. The payments are made, under this scheme, from a 1. qMuianritnzgitea,ngdanqiusaterrr,yisnagndisntosnieli,cagrriotsctko,nei., ea.n,dqucharetrzt,, cseolmvepsenasnadtiomnaifnutnaidneedstabbylissuhbesdcrbiyptitohnes elmevpileodyeurpsontheemm 2. bDurtillniontgianncdludbilnagstinnagtuirnalsisliacnadroanckd;rotten rock; ployers engaged in the industry without the interven tion of an insurance company. The fund is called the 3. Rock drilling or blasting in any sinking pit or staple pit in coal mines, or operating drilling, cut RofefSratactteorcieosntrCoolsmtpheensraattieosn fiFxuenddb, yLtthdi.s fTuhned. Secretary 4. tSinawg,inogr, brpelaakniinngg,mdarcehsisniensg,inschoaaplinmgi,necsu; tting or miTnehse aSnadndqsutoarnreiesIngdeutstitnryg Sanchdemmeancipouvleartsinwg ogrkanerissteirn, 5. cBarrevaiknigngo,f csirluicshainrogc, kg;rinding, sieving, mixing or gritstone and quartzite rock, but excluding rotten stone and natural sand. Mines or quarries which come under 6. Hpaacnkdinligngoforsimlicoavirnogckaboorved;ry quartzose sand; the Refractories Scheme are excluded from this scheme and employers who satisfy the Secretary of State, by 7. Bterreiaalksinagn,dcrhuasnhdinlign,g,grminodviningg,ofsieflviinntg,ormfilxinintgmoar msaenadnsstoonfe ewvoidrkenecdecboanstaeidnsonnocthmemoriecatlhaanna5ly0sipse,rthcaent tthoef packing of ground flint or flint materials. ositlhicear, rfersepeecatsn,d icnocmlubdiinnegd,thmeaycombepeenxseamtiopntedf.unIdn aarll alsTohceofvoelrleodwiunngdseprecthifeiedVaprrioocuesssIensdiunsctreiretsainScthraedmese:are roafngtheemRenetf,ratchtiosrisecsheImndeusistriveesr.y much the same as that FoCunrudsrhieinsganodr gmrientdalinwg oorfkss:ilica rock or silica bricks The Metal Grinding Industries Scheme as well as the Various Industries Scheme, differs from the above otarl asritliicclae;sfrceoenitnaginsintegelncoatstliensgssthfraonm80adpheerrecnetntsatnod sscahtieomneasrechmiefaldyeininththeefascatmtehamt atnhneecrlaaismsfofroorthcoemr ppeenr othreotfhoeurndsirlyicefolouosr;susbasntdanbclaesst,inegxcoefptmweotarlk odronmeeotanl sonal injuries under the workmen's compensation act articles by means of compressed air with the use i' l u i u t ) i y i r r O M m i HINUIINEEKIINL 121 of quartzose sand or crushed silica rock or flint. Thaenygeigttninegouasnrdocmk)an:ipulating of granite (including Dressing of stone by masons for building, civil en gineering, or monumental purposes, but not kerb odnresssuicnhgwiforwko. rkman is employed wholly or mainly Potteries : rMocilklinogr dorfiefdlinqtuaorrtzcorsueshsianngd ;or grinding of silica Aornyeparrtohceensswainrceideinnctalul dtoingthesmanaintaurfyacteuarrethoefnwchairnea, ealnedctriinccalludeianrgthethnewaprree,paarnadtioeanrtfhoernwglaarzeintgil,esb,uutpexto cmluoduilndg muankdienrgglawzheerdeectohroasteingproacnedssemsodaerellincgarrainedd on in separate rooms; Polishing, sorting, or grinding on any power driven wheel in connection with the grinding of glost ware and tile slabbing. Tin mines: Aofnytheopoerreatoiornthuendceorngtraoinuinndg;rbocrekakaibnogveorgrcoruunsdhinogr Waonrkymheanndlininganoyr mproovciensgs inccoivdeernetdal uthnedreertot.he other siliTchoesisAsscbheesmtoess IanreduesxtrcyludSecdhefmroemcothviesrsscahsebmeset.osis in binrgeakoifnga,sbcersutsohsinogr, aonpyenaidngm,ixgtruinredinogf, amsbiexsitnogs, oarndsieavll pceropcteswsehserein ptrhoecemssaensuafarectuornelyofocacsabseisotnoasl taenxdtilewsheexre asbestos is impregnated with an adhesive binder. goIinngostchheermree.speNcots stpheisciaslchceommepeinsssaitmioinlarfutnod thise efsotarbe liinsjhuerdiesbuutndcelraitmhes waroerkpmaeidn'sfocormapsenfsoartioonthaecrt.personal alsIon rceognunlaetciotinosn iwssiuthedeabcyhthoef StheecsreetasrcyheomfesS,lathteeruendareer tvheentFivaectmoreyasaunredsWtootrhkeshgorpouApcotfaipnpdluysintrgiesruilnevsoflvoerdp. re No. 40 of 1919 and the Miners' Phthisis Amendment AamctenNdom.e3n5tso. f T19h2e4manodst ciomnpsoolritdaanttesprtohevisoitohnesr afoctrs caonnd trol of dust are the detailed regulations for the use of water sprays and water drills, special rules regarding blasting, ventilation (covering the number of cubic feet ionfclfurdesinhgaidrutsot bsaemspulpinpgli.ed Dpeurstpemrsaoskns), wanerde intrsipeedc,tibount, proCvoemdpuennssuacticoenssfisulpianidsttrhernouuoguhs uanfduenrgdrorauinsdedwboyrkt.ax tiongpcroedrtuacine sliislitceodsims.ineTshwe haesrseestshmeendtusits ifsixoefd atonamtuereet tphoerticoonsatlotfoctohmepwenasgaetsio, nt.o tIhteissilliecvoiseids irnatea,maonudntstoptrhoe itnhceomMeintearxs'inPhetahcihsismiBneo.ardT.hiIsnfuconmd pisutaindgmitnhiestesirleicdosbiys rate, each or all of the following may be considered : the actuarial experience, the prevalence of silicosis as shown binyvepsetirgioatdiiocn minedeiaccahl mexinaem, iannadtiotnhse, mthinee dinussptecstaomrsp'lirneg ports of conditions. theThMeinAecrts'sePthsthuipsias mMeeddiiccaall bBouarrdeauw.hicIht iiss kthneowfnunacs atipopnliocfanthtsis fBorureuanudetorgeroxuanmdinewaonrkd ctoertbifey pahllyEsiucarollpyeafnit aonrgdanfrse;e tforomexaamnyindeiseaallseEoufrothpeealnungmsinaenrds reesvpeirryatosriyx mcoomnpthesnstaobledetecromnidnietioannsd: re(p1o)rt sailml pclaesessiloifcotshise, th(r2e)e taunbderctuoloesxisamwidnteh sailticoinstise,rvaanlsd, (w3)hesnimnpelceetsusbareyrc, ultohsoisse, suspended from employment on account of silicosis and Union of South Africa: fieTldhseiswahdomleirasbitluyatdioenscriinbedthein Sdoeutathil Abyfrivcaarnioumsinoifnfig cmeirnsi,steraacthionin, cinhartghee oRfeaposrptecoifal tdheepaIrnttmerennattioofnathleSaildi ceorss'isphCtohnisfiesre(nscileicaotsiJso)hhaansnebsebenurtgh,eAsuugbujesct,t o19f3i0n.tenMsiivne study and much legislation ever since the appointment otefntthteo fwirhsitchcotmhemdisissieoanseinpre1v9a0i2letdo aimnqounigrethientgooltdhemeixn ecrosndointiotnhse aRnadndc.omFpoeunrsactioomn,mitshseionlastehsatverepreoprtorhteadvionng been published in 1930. ferNininge farcotms dmeailninegrs'wpithhthciosmispe(snislaictioosnis)foranpdersfoonrstshuefir dateppernedseennttsinhafvoercbeebeneinpgastsheed,Mthineelrast'ePsthtohniesisanAdctthseCoonne s3o8l,id1a9t3io0n. ATcht,isNloa.w35reopfea1l9s25th, easMamineenrsd'edPhbtyhiAsisct ANcot., M OST CENTRALLY LOCATED 4 m ONE BLOCK FROM LASALLE STATION, POST OFFICE, AND BOARD OF TRADE. $900 450 ROOMS Mm UP WRITE. FOR FOLDER CH 1CA G O Just say to advertisers. "I saw it in SAFETY ENGINEERING" yl22 SAFETY ENGINEERING March, 1934 tthhoesdeisaewaaserdheadscpormogpreensssaetdiontotoa dfuetrethrmerinsetawgeh.ether or not of Ithhee mdeopnetnhdlyenatslloowfaancme inaeftrerarehisendteitalethd itfo tahne amwinaredr to AwhMicehdiccaaslesBoaarred roeffeArrpepdeawl hwenastehsetraebliisshdeidssiantis1f9a2c5 tion with the decision of the Medical Bureau. awfatesrendteiatltehd tthoatit hoer hifadthesecBounrdeaaruy csetratgifeiessilbiceofosirse oorr Simple silicosis" is defined to mean silicosis without oturbaenrcyuolotshiesr wcaituhsesiwlicitohsiswhoirchthsaitlichoesidsiewdasfropmresesinlitcoansids sreilcicoogsniisz,"absleilicoorsisovweritth tuobveerrtcutluobseisr;cu"lotusbise;rcaunldosi"ssimwpitlhe tuberculosis," tuberculosis of the respiratory organs was a predisposing factor. For the purpose of the Act, the expression "tubercu without detectable silicosis. For purposes of compensation, the stages of disease olofsitsh"e isredspefiirnaetodrytoomrgeaanns. tuAberpceurlsoosnis isofdetheemeldungtos boer suffering from tuberculosis whenever it is found by the haared cslialiscsoifsiiesd and a miner is deemed to have or to have Bureau either: ' (a) in the ante-primary stage, when it is found by . tbe bureau that the earliest detectable specific (a) bthaacitllusus,chorperson is expectorating the tubercle (b) that such person has closed tuberculosis to such epnhyt;siwcahlesthigenrsoorfnsoitliccoaspiascaitrye foorrhwavoerkbeiesnorprheass been impaired by such silicosis; . apadcietgyreaendas rseenridoeurslyprotohibimitipoanir ohfis hwisorkwinogrkicnag (b) in the primary stage, when it is found by the Bureau that definite and specific physical signs huenadlethrg."round advisable in the interest of his 11 a miner is suspended for tuberculosis not compli- coafpasicliitcyosfisorarweoorkr hisavoer bheaesnbpereenseinmtpaanirdedthbayt tmatetdhebyprismiliacroysissthaegeb. enTefhites agsrotuhnodusghuphoenhawdhiscihlicothsiiss ethnatlty ;disease, though not seriously or perman "(c) in the secondary stage, when it is found by the aisctsioonstirsicttakaesn toareextchlautdethepriancittiicaalllpyhyaslilcathl oesxeamwihnoatiaorne oBfurseialiucotshisatardeefoinritehaavned bsepeencipfircespehnyt,sicaanld sitghnast winoferkct,etdhewreit!horteubitermcualyosbise aatsstuhme etdimtehaotf tahpepdliicsaetaisoenwfoasr contracted during the employment and possibly due to pcaeprmacaintyenftolyr iwmoprkairiesdorbyhathsabteednisesaesreiouosrlywahnedn tiht.e mSuinceh aandmifnoerr thisisaresoasuorcneitofisindefeecmtieodn jtuostioftihaberles tion sitiliicsofsoisunids obry hthaes bBeuerneapuretsheantt.t"uberculosis with suspend him and to compensate him. losCisoomcpceunrsraintigoninmaaymbineecrlawimhoedhfaosr astiliacnoysistimore tuwboerrkceud " ibthoiancyomclipneincaslatsiotangepuorfposisleicso,sitsubiserccounlossidisereadssoacsiasteecd ondary stage silicosis. yuenadresrgorrowunhdo ciannasastcishfeyduthleedMminineers'foPrhtahipsiesriBodoaordf tthwaot he contracted silicosis in such a mine. alsNo aatwivaerdleadbotroernsa:tivCeolmabpoernesrastio(wn,hobaoseudtnuomn bweragEesu,rois sumCosmcpalecnuslaattieodn obnentehfeitsbaasrise ogfrawnategdes ineargnreaddeidn cluamseps pean miners by about ten to one). Mine medical of bfioctehrsi--nintioatl etxhaemMinaetdiiocnalanBdurpeearuio--diacresupreersvpiosniosinbloef tfhoer tiunbethrceulaonsitse-pwriitmhoauryt sailnidcospisr.imaCryasesstaignestheorseccaosnesdaroyf stage are awarded a monthly pension based on wages natives. lhe periodical examination as prescribed by the earned. A miner who is found to have silicosis in the secon Risewgueilgathieodn,socbolnigsaisttosriolyf tewveorypatrhtrse:eemacohnnthast,ivaecteumalpllyoyaece dmaerdyicastlaegxeamoirnattuiboenr,ciuslsoussispewnditehd ismilimcoesdiisa,teolyn fproemrioudnic caodrdditi.nognatlostehpeargateenesrtaelthporsaccotpicice eoxnacmeininatisoinx iws emekads;e aonf sdielircgorsoiusnhdaswtohrek.opAtiomn inoefrtawkhinogisanfouanwdartdo hanavdelesaimvipnlge aplelrinoadtivoefsfivwehyoeharasveorwmoorkree.d uApnoyn naantiyveonfeoumndinetofhoarvea iunngdehrigsroauwnadrdw. orAk omrinreemr awinhiongreamt awinosrkatanwdorpko,sthpoown tl>ospt o5unpdosunbdestwbeeetwnee3n stwucocessuscivceesseivxeameixnaamtiionnastioinss,eoxr etnvaetr,hefohrasmsoirleicotshiasn, ftohrrfeeeitsmaollntrhisghatfttoeranheawisarndotidfiuerd aadmdiinteiodn,streaththoescrorpeicceanlltylybtyhethCehmaminbeermoedficMalinoefsfichears. iInn einngtithleids lwifheenbehyeonwdasthfaitrsttonowtihfiicehd. heAwmouinlder,hhavoewebveeern, stitviteustewd haon haanvneuawl orrakdeidogroanphaincyexmaimneinaftoior n5oyfeaalrls noar wunhdoerhgarsoubnedenwgorraknteind athelumlipstesdummianwesardwiathnidn cteharseees omfohrea.vinAgnsyilincaotsiivseosrutsupbeecrtceudlobsyisaismsiennet mfoerdwicaarldofffoircear "benefits" examination by the Medical Bureau. tmitolendthtsooffurhtihsernoatwifiacradtioonf tahamt ohnethlhyadallsoilwicaonscise iisf ehnis Although the period of work of native laborers i> dtoisetausbeeprcrouglorseissseswtioththseilisceocsoinsdaarfytesrtaghee ofstosiplsicoswisorokr. gradually becoming longer, even at present few remain exposed to risk long enough to contract silicosis. On (C ('iitmucii on ptu/e l>(>) 1*26 SAFETY ENGINEERING March, 1934 (Continued from page 22) the other hand, the native laborers quickly contract ssoimurpclee otfubienrfceucltoiosnis foinr tahne saicliuctoeticfoErmuropaneadn bmecinoemrse. a Statistics: In the annual reports of the Miners Phthisis Medical Bureau accurate statistics of silicosis and tuberculosis among the Rand miners are available abseefnarcobmacpkileadsa1n9d17e-s1ti9m18a.tesPmriaodretoofththaet psrtaetviaslteicnscehaodf tbhuet dthiseeainsefobrmy athtieonvawriaosusadcmomittmedislsyioinnscoomfpilnevtee.stigation, theThreepcoornt seonfsuthseofCoompimniiosnsiobnasoefd Eonnqtuhierysta1t9i2st9i-c1s93in0 wdeacslitnheati,natlhlethninewgs ccaosnessidoefresdim, tphleeresilhiacossbiseepnroadumcaerdkeidn tthoeshmoiwnesthiena1tt9a2c8k-1r9a2t9e.s:The following table is quoted S T A T E M E N T I. Comparison of Attack-Rates percent for Simple Silicosis at Certain Durations of Underground Service and at the Periods Stated 1918-20 11992208--2239 Attack Rates, percent, for Simple Silicosis FiAftth TeAntth FifAtetenth TweAnttieth Y.. e0a.r74 Y8e.a9r4 Y1e4a.5r6 Year 14.13 .. 00..2322 25..5050 65..3918 67.0648 to Tbheec1o,0st00o,0f0m0 inpeerrs'ypeahrt,hiosirs aobnoutht e7sRa6ndd piesrthuonudgehrt ground European shift. aftWeritrhemreogvaarldfrtoomtheexpproosgurrees,sifoignuroefs tghievednisienasteheevreen port of Fraser and Irvine at the Johannesburg Confer ence show that at the end of six years out of 895 cases hoafdprdiimedaryansdili2c1o.s4ispceerrtcifeinetd hinad19a1d7v-a1n9c2e0d, 2in7t.6o ptheer cseenct otinfideadrydusrtiangge,thwehpileeriooudtooff 1792280-a1n9t2e3-,p2ri3m.5arpyercacseenst cheard daniedd,222.79.2peprercecnetnitnhtahde ssuecrvoinvdeadryinstathgee. prIitmiasrybelsiteavgeed, tfhecattivtehetsyepefigoufrethseinddisiceaatsee thhaast baeecnhatnagkeingtopalacmeo. reTihne aovrepraroggerepsesriioond tofroamfutrhtehedrastetagoef ocferdtiifsiecaastieonaptpoeadresattho bmearays sftoalgloew, s3.:8aynetea-rpsr;imseacroyndstaargye,staabgoe,ut7.43.6yeyaerasr.s ; pri ferTehnet ceaxlpceuclatatitoionnaonfd liisfeeshtoimwaetveedr fdoerpeanmdsinueprocneratifdiiefd to be in the ante-primary stages as 13.66 years. There icslussoivmee, thslaitghint tehvoisdeenincethtehoaungteh-pnriomt aernyosutgahgetowhboelecaovne twhheomrienmesaintheatdwiseoarkse. progresses as rapidly as in those naTtivhee ilnabciodreenrcseoonf tshileicoRsaisndansdhotuwbseracuvloesriys ainmteornegstitnhge cpoeanntrsasatcttiovethsaitmapmleo, ntugbtehrecuElousriospoecacnurms iinneras.veIrnyEsmuraoll plersospothratinon2opfetrhceencto,mwpheinles,abtlheecagsreesatwmheanjofriirtsyt coefrticfoiemd, ptheensmabaljeorcitaysesofacreomopfenssimabpllee csaisliecsosairse. siImnptlheetunbaetirvceus losis, sometimes accompanied by silicosis in those of longer service. This is said to be accounted for by a hlo'gsihseransdustcoeptthibeiliftayctinthtahte hAisfrsicearvnicneatiinvethteo mtuibneerscuis usually much shorter and less steady. slustralia and New Zealand: cosIins Aanudstmrailniae,rst'hpehtvhairsiiosuasndslaptneesuhmaovceondieoaslits winitdhifsfielri ent ways. Some states, such as New South Wales and eWaseessteiinn twAouswtraalyisa actoovnercec: om1.pe(nas)atiboyn aufothrorthizeisneg dthise MBriintaisinter(NofewLaSboouutrhtoWmaalekse),sp(ebc)ialunscdheermthese awsoirnkmGreena'st bcyommpeeannssatoiofna ascpteciitaslelmf in(Werse'sptehrtnhisAisuascttraeiflfieac)t;ivaendonl2y. Win alceesr,taainnd dMistinriecrtss' P(Bhtrhoiksiesn AHctill192A2c,tsa,mNenedwed S1o9u2t5h. atrnadliaM). ineQuWeeonrsklaenrsd aRlseoliecfovAecrst, co1m93p3e,nsWateiostnerfnorAsuilsi cscohsiesduinle coefrtacionmpspenecsaifbieled dinisdeuassetrsi,esasbyfollliostwinsg: it in the Description of Disease Description of Employment Silmicionseisrso'fphththeisliusn;gs[ -,! Minstionnge ocrruqsuhainrrgyionrg court- ppunlemumonoacroynitoubsiesr;culosis j tinil BMaiklleerrss'' pphhtthhiissiiss Baking Flour milling Queensland does not, apparently, have any special miners phthisis act in addition. The Commonwealth of AsautisotnralAiact(Eomf pthloeyTeeesr)ritAorcyt ooff 1N9o3r0thanAdutshtrealCiao,m1p9e3n1, icnogveorr"pcnuettuimngo"coonniolys.is" Sinou"thquaArruysitnragliaorasntdoneViccrtuosriha do not schedule any of these diseases as compensable, tbauctksSoduuteh Atousctornaltiaactscwhietdhuloers "inahstahlamtiaonoroafstbhlmacaktiwcoaotd pminineindgudsti.s"tricItngoVldictfoierlidas ihnavveestiegsatatibolnissheind tthhee fBacetndthigaot tlhoseirseaims oangvemryineerxsc.essTivhee mMoinrteaslitAyctraitneclufrdoems aturbeegruclua tdiiornectwehdicihntostamteaschtihnaet darijleletdohroslepsrawyhoilfe wdraitlelirngm. ust be ingTaoscmcuapnaiatiohnaasl ndoisewaoserksmbeunt'spacsosmedpeannsaaticotninac1t9c2o9veinr tended to cover workmen or their dependents in case otifondaeladthiseoarsetostainl itnhceampaicniitnygfirnodmusctreyrtaoinnlylisatmedonogcctuhepma silicosis, pneumoconiosis, and fibrosis. From the word iinngthoefntahtiusreacot,f iat mwouutuldalsbeeenme,fihtofwunedvetrh,atnhaat ciot mispmenosrae tion act, since it permits the employers to deduct a ( C o n t i n u e d on page 128) '128 SAFETY ENGINEERING March, 1934 SAFETY TREAD COMPANIES ORGANIZE z\ iInRgAmDaEnuafasscotucriaetrisonofhmasebtaelensaffeotrymterdeabdys,thite ilseathde NMeewtalYSoarkfetCyityT.reTahde Amsesmocbieartisona,reanthde hAams eitrsicaonffiAcebsrain sMivaesoMn eStaalfsetyCoTmrepaadnyC, oImrvpianngyto, nL,owNe.llJ, .M; tahses.;AtmheerSicaafne TTrreeaadd CCoommppaannyy,, NNeeww YYoorrkk CCitityy;, tahnedSWtanodoasrtder SParfoetdy ucts, Inc., Wooster, O. tioInnfoofrmwaatilkown aayndhaczoanrdssultaantidonthreeguasredionfg mtheetalersaadfiectay tprleicaadtsionwitlol abney foufrntihsehemdemwbitehrocuotmopbalnigieast.ion upon ap LECTURERS ON OCCUPATIONAL DISEASE HnEowserbieesingof gsiivxenlecatutretsheonEoncgciunpeaetriionngal Sdoisceiaestieess, T A NEW KIND OF SAFETY LADDER A NcipElWe hkaisndjuosft sbaefeetny alandndoeurncweidth bayptyhreamSidecpurriinty NewBYuioldrkingTuinbeNrceuwlosYisorakndCitHy,eaulnthderAtshseocaiautsiopinceasnodf the the Committee on Public Health Relations of the New an ordMinaanruyfascttuurrdiyngsCteop.-loafddBetri,cywruisth, Othheio.adTdhiteiolnadodferais likYe ork Academy of Medicine, has so far by Ur. A. J. Lanza, assistant medical dbiereenctoadr dorefssthede lateral leg on each side that prevents toppling and re moves the danger of falling, an important factor in the MKeestsrloepro, lmitaendicLailfediIrnescutorarnocfe tCheomNpeawnyJ;eDrsre.yHReenhryabiHli. oacrdciidneanryt rsatteep. -Tlahdudser,betshideesnethwe lfaodudrerpedhiams etnwtsooof ththeer toaftiotnheCMomamryilsasniodn;CDasru.aAlty. DC.omLapzaennyb,y,ancdhieVf esrunregeoAn. ppoyirnatmsidofbaaspeplwiciathtiosnixtcoortnheersg. round, providing a real Zimmer, director of the Division of Workmen's Com pensation of the New York State Department of Labor. byPtehaicsesoaffemtyinadppwahrailteusw. orTkihnegreonisanoladndeeerdistoaswsuorrerdy Dr.ThAedsepleaiadkeersRoaststhSemrietmh,aicnhiniegf thorfeethseesOsicocnuspwatiilolnbael sthwaetrvteh.e ladder will careen to one side with a sudden DGiosledawseateCr,lincihcieoffotfhetheVaOncdceurbptiilot nCallinDicis;eaDser. CLleinoincaordf folTdheed bmyamnuefaancstuorferasbpaollinatndoustocthkaett athrreanlagteemraelnltegwsoarrke CNoelwlegYe;orDkr.ULnievoenrasridty GarnedenBbuelrlge,vuaessoHcoiastpeitadlireMcteodricoafl einvgerwinittherftheree lwocikthinganyspsrpeeacdiearl, ussoe ttohawt hiifchthtehye slhadoudledr tUhenivJeorhsnityB; .DPr.ieGrceeorLgeabBoraaethorr,y ooff MHoyugnitenSeiaonfi HYoalse Iisntoothbeerpruets,ptehcetys,ctahnebleadqdueicrkilsyedvreorpypwedhiotuatsocfonthveenwieany.t poiftatlhien SNaefwetyYoErnkgiCnietyer,inagndDWiveisslieoyn,MN.aGtioranfaf,l dBiruercetaour as an ordinary step-ladder. of Casualty and Surety Underwriters. small sum from th(eConwtinaugeedsfroomf ptahgee 12e6m) ployees as their sciomnitlraibruttoioonthtoerthmeinfeurnsd'.phtIhnisoisthaecrtsreisnpeitcstsadthmisinaicsttrais tive set-up including provisions for medical control. New Zealand provides under the Pensions Act (1926. wSeocr.k3d2u-4e0)toomnliynefrosr' pmhitnheisrsis wahnod afroer itnhceaprealciietfateodf tfhoer tfhaemirleiesspiorfatmoriynedrsisweahsoesdiceaufrsoedm bthyatdudsisteaasree. scNhoednueleodf unNdeerwthSeouNtehwWZaelaelsa:nd Workmen's Compensation Act. duTsthdeisdeeatsaeilss ionftthheelsuonmgsewinhaNteiwntrSicoauttehaWctadleesalifnogllowwitsh: AcItn, 1N9e2w6-1S92o9uthdefWinaelsest,hethewoWrdor"kienrjsu'ryC"omtopeinnscaltuiodne dwihseeathseesr aorfisainsgudoduetnoofnosertinorthoef scuocuhrsea noaftuemrepalosytmoebnet contracted by gradual process other than a disease ccaluudseedpbnyeusmilioccaondiuossti.s fTrhoims cvoaurlidoubse kinintedrsproetfeddutost inif such cases arise but diseases caused by silica dust are ssppeecciifailcaSlliyliceoxseismpAtcetd obfec1a9u2se0.theTyhiasreacdteaelmt pwoiwtherisn tthhee Mcoimnipsetnersatoiof nLoafbofiubrroitdo pmhathkiesisspoercisaillicsocshisemoefsthfeorlu the ngs oexrpootshuerre dtoisesialsiceas oorf otthheerpdulumston(aerxyceoprtgaatnsBrcoakuesnedHbilyl Mis itnhees)saamnedmtoetehsotdabwlishhicha ifsunfodllofowredthiisn pthuerpBosreit.ishThacist for dealing with silicosis. To be continued in future issues of SATHTY P.NGINIlliRlNG