Document b50Xn1MbaVKOn9qL73KGqxY4y

FILE NAME: Refractories (REF) DATE: 1934 June DOC#: REF006 DOCUMENT DESCRIPTION: Article from The Refractories Journal - Silicosis & Asbestosis with Cover Letter to Dr. Gardner from Dr. Lanza t ** ' J* y 1 % J m m . 1 ^ 4 _2 . ^ * 'S : -- T tel 1**ri f< e m 'l to <' u Jwtor to to it o m ^ to to r i i i / ' i i r / < j ----------- r r r ^ - : * n ; } * - ' * OSUiliIcCo0s5iIs5 anda /Avssboeesstiosis. ^. , A fem; Aeetm/ of te JUfrmaohtt Atoansac* o/ Grant f l n u . wA . . Yorksket Smttim c4 che S k Oji a f Ckrmtra /atekjcrr - -r i Tr-'- ' ..v-v T V Disnuskm wkck feiltxrod tkt roodmg of the Pmrrs. (Q w rW ste from om Hoy m t' i C .* 0 .t D ** f . I M h n u , M J>. (Tabenctotes Oftcer to the Etorbyihjrs Canty CoandI)* mhl: ~I would like to express my thanks to K r Rees mb Dr. Tiderwxfl far ao kindly inviting me to toun. to-night. and giving' me the privilege mi itsirrang to Tti itim uUuog papen a i lh~ we have just heard As regards Dr. Jones's paper, it is im p o rta l to remember that telecasts is only one farm of parwtooooooniotea. bat is a aaiqur farm, aad fa dk> t'htfhagmshrd from all other farms by its basal a h : the tehm tir isfat nr aod ak. It tem fa not V cowusandea w tii other farms at ..........................m or fibrosis It i * hippi augury tu yrr geulugiat, pelrougists, In itorhyshrrr, iltenm risk orrom -' |r*nr pbvisasU. diriniMi, Uo-clierTusts and m edial men, meeting to-night to discuss these questions, each industries, viz , the qusrtxitr tndustn, the <"illtotonr grit industry, the chert quam rt (he' feom.il fafa. ooomoUung his share and co-operating tor the i d v -- nur.: cf k,--.ukJg,. SuJ. he. gram of silicszia in a chert quarry man, and s sfx d m i j the w a i n w ll sl l i e n a l e t mI* ^ m I i n l t o . % been long overdue. Derbvshirr coal miner, do moi suffer from alhcrv I was particular)! delighted with Dr. Fowweather's PSP'1'- whirh exclu sively showed that the extent t : use norosas m a auicouc lung bore no reutsorunip te the amramt rd the ihn arnntlv found in the lone altboogh the eoal mines are d a ted wttk "temlr Iterbyshtrr ouartztte dlflrri in no matrttol (i. tiralar from th^htibridgc a d Drrpea* - e i r r " and I should hke to ask Dr Jones if thk a ato rM because, from a priori reasoning. I had always twiirved that thi* *noM he foand to be the C LV : tnat siuca enterm tne lung. Oso its netanous ora. .M.t,... s,., , , , , eltu ^ and then departed. It had been known ter many years that the quartz particles which were found in the lymph nodes in early silicosis disappeared from the silicotic nodules and from the silicntic fibrmi* with the passage of tune. This was foreshadowed by Eel: of Toronto many years ago, amt vas cor. firmed by other workers, including Professor Strwart. x..t% oi slumiiu and ferric uzid. u l m lugrtfes', so that there is very bttle mom far l a v euofeferd s ilia in its stroeture. It c a ta in s a good dm! af m ia , bat this appears to be Oaky m n of the Ma> covin type, la fact, a berbvihtr ............. is can ahravs toil the a rural beddnw of a feea af millstone grit by the dtepositten of the flahaa af a t . h ose abwncr from the gathering to-night, everbody fl-glr. Chert is pore sibra of the ndoo-fibreas or chairedoni: type, in which the individual fibres are sn fine What is not. perhaps, sc grr.crally recognised is tha: o Ik-i is eliminated dail\ in the 'urine Normal urine contain if 1 rrmembrT rightly. op to 8o msis^ras^nvs fxr litrv It is also eliminated by' the boTl. and is capable ot entering into organic combination is the bodies of men. minui psauis T V feathers of bards, for example, depend upon the h a content far their stiffen and rfaitirity, ; * fa lU stems of cnala, bamboos, etc., a d the altea oootnat of sow old-fafesonad ptanu " * M the eqraarturu. i very high In bird i (n th m , f-- a l v i 14 anarsrd to e n it rmertme to Pro- to-ianr I H S halda nr. as choletaeroi s h a le , and, ts. as shcaars of potymeebandrs. - that they aii to be ouly ta cue dimeusioa. As regards the ps-ket rihr mads ar days employed in firebrick making. I hsvr always maintained that the silicosi n>k in this indaatrv is comparatively slight, but 1 would not be surprised to bear that the material contained more senate than any of the other three 1 have beat taken to task regarding a p-p-r I wrote some years ago on the freodomfrom f e o i f e - * r ta n * * " * * r , because I had not gtran f e i ooaata. a a f T i t t n t U V f nut stated what changes oceurreil m the firing of the krteks. Wefi. Dr. Middletoo, who had done the dust rmi*h fa fTWWII rcKjW Cf'K m in>wmafirm aboQt the He mirbt als> n v whether ctetinned expeneoce has smrfi^ird his views as to tbe risk in these mdsstnes. * pro' fH to mm MaCuJ ( e < e <1 HeslU to l i p. HfWnA ed e 1 I I HWtoai t.. <.er~ i tto m o wtak Tstof*ik* etjcw a* a Firing mrrefy inverted the quarts into tridymite and eriobabtr. or left the ouartz tmchangesL la the potsenes. the persons woo tn r -ned the ware after tern* were subject to stlicoeu a> rll as those who worked with f l a t before the firing took place. r i 13 ! ; i*. 222 TW BUtranaesas Ja Jwnr la j ' l i / u w* I V M e t *ml b tm it " -- RetmmU P HUcen-t t (n cunsidrnng vh rtlv r silica or scricitc caused ilicnsi, th. pathol.igicaJ and cxp m m m u l work ( Leroy Gardner and Cummings at Saranac in th, 1>-S-A- waa et great importance. Thru pathological ooochaaoM differed in mo wav from thaw d K s - fcuor Stewart, am) ao more a rH hr said about them. *"* *k- " met has hrm m m r on for nearly twmtv vrars and is o( wide rang. and (rnrat importance. As long ago as 1920. Gardner showed * * ** predace tyjhcal a iln a is in the lungs * * "iiW7 P y by tpoaing the animaji to "pore r t * dost, (ailed to Dr. Jones ' while similar exposure produce silicous. I would which mineral contained the to granite like to ask more senHte.f Note on Sh ale." Thr term ` hal' i- f>ar, appli.-d material, which arv ofirn .iifi.-ni.t in rh> mical and fvwcal mm position. Froperh 10 called "ahalr,' compressrd rirhn-- renn/ d a y , oct-am r^t h w tbr coal nva-surrs. and contaiairw few quarts veir*eU< < e-1-^T, he finest rlavs /et rrrtin tm U hlfi, do Such shah- 1, quitr irvrapaHi. nt producing sUtcov,. and has been Used for mans v-ran "dwatmg" the U trb)ihirr coal mtnrs. ' It fa wril-known that Urrbvahirv coal minee ol suffer from aiHcows. At our aanatnnam at Cberterf* Id. manv thowaand* of nwi rumen al a l the " fwre quarts' or the granite ? age* have been treated for tula-ri uk>i, uf tie- dnrraa the past tw m tv v r a ix (aithosvh miners ta Similarly Gardner and Cumminrs have compared Drtbvabzrv do mat suffer ibipr ^ u i imnaleti (m a thi action of quarts dust rxprnm.-ntillv w-irh that of astwstos dust, dusts 01 lunduii. luxil., tiiierv C lmonarv tuhrnrulo.1,1 Kadingra|>l < the rfwsi and other doc -siliceous abrauvis, with carborundum vi- I m i I t i n i in n \ u m , th- ^-laqrat^i- dut. and coal dust, and alwavs with the same result : rr available for insfwrtBm at Sanatorium Vme i fcsr n fm tti Iwatrrfwk) the quartz dust produced silicosis, and the other* UIU IM/i. ' llnfoetnnaleh- the term 'sh a W t. I *PP*wq to a tormatam n a isi.iu y , (u*j, ,, As regards the supply of fresh air to workmen by I fnabir gritatunr alter nal in with Ihut fwsi. .,1 means of masks. ] brought home, from Canada, material containing manv qwartz pwnirie* ,eh in tot... a Bulmer Air Mask " Th, Bulnn-r mask " s h a ' i ii.com ctl> an call. d. wrmld. H consists of a hemisphere of light jaconet, tied looselv hr v m oangrrwBk A tvpwai r u m i a 1, . . . 1: i i -.-I- -- a.. VemdaU <khale" fwrl knrmatlnn ai .Vualh positive pressure, bv a light rubber tube supported ! Dertnshirr which ermustt mmih n# U ir r , id wi -V. .1 I" S.. I,.k ealik, , K,m*i |, h i, I aril ' unim tatitp :r use. but ih* drawback v m n 'H 1 Not* ou to huLai Uwawiaeawe. to be in the air compressors, which fed the pipes I am a rrlirrd (Hhcrt (Mapa) of thr lu k an These had to be lubricated and the lubricating oil Medical Srrvicr. and from ig in to t q t j (w k n I vo!;::!:r~i or became pol\-mn*ed into poisonous went on War Service) | worked m M ad n. | am b>.trocar;-.n, 1 have passed on the mask to Dr. Fischer. thrndon, acquainted with uidustnal coodii-u ir thr South of India As regards the colloidal theory of the actioo of " . u - .s o. 1... frcent acquaintance with the icmcwha: modifit d rr.v view OAlUi*cl *Jiu V-Uiiiuuu*? U4kc MM<*it Lu*t the ripidifY of tenon of quartz du>t drpmded opoo the smalinrw of the particles, ana th, -or* of Sir William Bragg I on silica and of hi, von Professor \V Bragg on tin structure ol silicates goes to shorn that, provided the panicle arr small enough, therr is r.o essential amrrrncr in tlir action oi sibca ana smcsi, - as ai.d as H i cl rmgbl v ,r, a *11 art chrrmcalh when fm h ly made, as well as coUotd- , *be aerosol might hr the moer active of the two t*>e other thing Professor Bragg $ work did bow. viz: that d a vs. micas and talcs, were the most m m eWctrocbs micallv. of all the mineral abeates " of ch-rr.ical artmo! r ^ " 1- ' ' Id he the Wws, likcfv to It. I noticed, with aomr avauc comprrhrasaoa. thr statement that the la d u a empico-era ia thr k u h i mines "rrfqscd to hr radaigraphed"-- I thm i | could sngg1 .1 n e,jilTMi. of that tH im l I would advtar those ctmcarmd to tahr aa\ rvtdencr, coming from Indian Mearse irga/sliiqt th, absence of silicosis amongst Indians rmpiusrd in th, Kolar quartz mines, ,-ith som- 'rs#-rs. D r. Chaa. L. S u tharU m f. D .P .H . (Chief Medical Officer-- Medn jl Knar.l for ^ I k tk is and A stw tr*is- bhemeid). Dr. hMitiertand showed two tprontras 01 lungs of South V ties coal a J a m who had dfad cd ailimti The fir-; of thear was aged 34 am) had been employed in tin mines in Cornwall ap to thr a g -o f Z3. and. after that, for about 4 vrara as a hard work, r m ,h e anrhninte area T h e lung \ uf tills man Oiuwed a very advancs-d noduW t\pc o meo! which contrasted v m rt marks hi v with Jtiaosl. .V . m " * a ,' 4 OSe*a"nip"uuu* UhSretnrseruv. r *f rw 1m . SW thJ.-*fT0d '." f Which ^ *< This was from a welsh coal miner from the anthraate district, who was aged 43, and had hern employed in coal pits ia c that an a for 3 yean For a year and a half of thri 14 hlUl ClwJf* 1 T. m , m* y k ;) kr was definitely empiovrd as a hard verier, a la ., woroag re nadstoae, aad lor over a i l yean, hr f S w T e e B 1 * * en*he^, * * ? * ^ - * * . v ^ k t to hstea. it not to ^ eak. at your bat needs must that I go with my Duivemty FVM d a re lo LhureoOea iaatead. hawed thr appearaaee w k A haa hare * rhs* r* vtfim-anth n nod It 1 soft) let * n * * i to be brealbmf d m ia the __ iPaatrated thr rehyrct resttir at the * 1 dast. aad aUKa^dreaT** F*to da. . * e* * ' * 11. Dr. Satheriand. thaafcad the e e e h m l b Refraraorire Aaaoaaxaoo at Gaaat to o . taad the Yartsinie Section at thr Society at r w ^ l i* d w r y ) far their badness ia inviting him. th r o a t Mr. n . j . S n v u< ucad thr axxUug *1--cvcnica. b r - C . C . I V r k (Secretary. The S d n e t m ladoamm Compensation Fand L td .): I n t niiml that fa rm e r doe* oot contain reach (1/ ay) arridtr I knw b m tooki^ a< dto lM df e r e M CaM certify any oatat there tree trare tar t a t s 1 laraSsZrKS to ~m a k a which has bare eeflvd seriate, hat torn (that ___- haw rait rina re at today Idas tow* |M A r ftaV . 3 Caaiatar, but reach k a k t h reed RaBbx M Bed. Deepcar are) Owfkdbrid|t - a f, m lar as I can see aoew rervim ia the d k r. I haw t t -- d f e - J * * ' contention it that aehdte it thr harmfal m ata4aJ wtriefc arts np *iiirot< If tM 1 > | m L nU acccH ut (or the Ucl that oat of 463 eases a a d a the Refractories Industries. t(rj at there are ftnister 1 or fetter*. There a n also 83 case* of craahs' and grinder*, and probably it would not be aa antair o c r a a if to arthbote at least half of tla-sr caaes to famster. Of the JL4 other r y t r . a | u t a Dr. R .L , W^ Otocr k e v W by the Chairreaa to ^ rek. aresrkrei dret re a r two poimts bad bare raked to Iks pap^s re whkh be wowid reake a knk arem ret. ^ Wr are iadebaad. hr a id . to Dr. Jeere k r brk t to bear oe this impartmi * adama at peoiagy; this bad Soatk Africa to a hrettod re men Mm Mwheal rere who baw atadkd the dka tr~~. v- fr rr-*-rvt! w * *h-r fh* r i i f H i m m I ||^ dMM w r y Jifftr arridtr may br m detnung erectly ow t r e e at It a r m to me that if Dr. Jove*' eoateotion ia rettgts into ocher patrere i to be accepted (and a very iairresttz^ atwa 1iimi reafared that the type at it is) that the most careful mveatigatioo w i l l V v e to rendbksten are) (Mat rrartnu. k r a m rek dkfiw be readr as to the presence, or otherwise. at senate (rare the type at the dtorare a ct with -- rm t ai tret " fantner. Of corese, my records do not shov vhat Partiatiar gaaisur the men have bem wurkire ia. aad the aaal rehren at b ath Vaka. It repren i 1 be wot MGuiutftait witk tfcr throrr pot ! q ij J < I d o aoi know eaovfh at the mbyect to know whether tome canister has read. seriate and m a r a little. M r. U . J . R are. k i c . , F .I.C . (Head of thr tUInctone* Department of Shefirid University) (S r o e n n of the Refractories A sa o n a t ). remarked tM t he w ii partiraiariy intm-strd in the saegesaae pat lo r n r d by Dr. Janes There seemed t o w oiorr thhraenf oae cansr of the fibrosu t\-p*c*J in the aibcotie l i D r l o n e s s tn titio iu with nyrard to seria te are e a h h * e < it wrerid appear hhety that there * * ** " ri^ worked on a iaree 1 * a sd m w eres. h o the point of T u a at m m b i as k V a rack. Kyarette, StBrereaite d u r e at material are erte r e in lj aaed ia the S d n e to r to ladaacrt'. ; btances hsvr a edifying rflect aa tb t W f! It k cancervahk that two brep at 6mt mar re* aeparitefy k the same hreg at a re r e k the M M t k a e . I Dr. Hefhmsn has irfmi-d to the ocewrrrwer at bams areonpt the workers k the pocket e k y v Atmoapbenc oast ssmpiri drewad dret w k re <kkd and subyected to mechanical treatment k theeewc^res of manufacture, enough fine dmt wms fr ir a a/Tto eeotmt tor the m u n w s of a k s r e . -1- 1 .1-- period at dree thr w urbrs had hare M r e d h t b procea* has to be coatodBed. ~ _w rearosidet air of partkalar k-t-a--r-a-s-t- read retrawrefr ared^ I *sirea!dBMkr "* *rou terT** red ireperreaoe, importaat, are) I hope occasion w be fcawd to p w b S k*v* la a rm t torn FtofcJST V ." c " TM ' L * poTrtoVwcreehtyoeSct raht dIdk.owahkichhaws abyarVe arreegaordf evditaasl kthae- k X , F X i. (SMddd U am retyh" a r e fc s i wherres m th k eowatrv. b the w m . 4 bat ceaf r y the theo M edieJ O ften of Health m rered la thr m ortality amoogst steel tori ertoden wbo n n J y readied tW oi 40 m > ^ r mm4 9m J r 1 *** there rtiD mart, miorrrudac to be > *5*7" f c f r t W am thn mtbfea and 1 would pamc e i B t y * the importance at keejanr an opes " poatjoe to review all the facta. irm-r i' T * Vwhllt ^ w e a t h e r , who toad that the aafc erf the haw to a L 2 <h* W il' W* *" * * * 7 * * ^ -- > * rffcaAr.MOm, " ** 7 7 * " N H y hwtotoe. hat the' m m ferim zaik. aar other toMMa v i y to r loranda v fll k t m ^ w _______ I toreweti, the tahaiad daat coo tawed t w t o h a f afik* with --- :--, fay _ _ ____ ^' b a c M k . *** 1__ the jvrri atagi rfhea feaad a n U b r i l t o t o D ctou in iW ift^4Aed. . k t h e <h .raaHmaoc at aibatoa. a rtaah fraoaeatfv w * * d m the * * * m o a at a i ar a to m M tto ~ 2> eaB b^ kark ar ayB tc# fairtjrpm rffc l. . / . . . f * * ****-- th. rhara irn iu t fahrom mtucubc ^ -- y had^te the rln , t U i what appear to be Htohua^M bM toa! 2r.rzasitteyr " 7 P*rty. or eatwHj- he t i a h T S h r o w form C t . Addtocfey aritod Dr. FavaaBthto what I I I , a f . S k . a L c lte wai mad by Prof. Krttfc b f c cxjATVBaU uu uiUa-Lrachtal injection of |tanra- P*p. ^ TahwaeJl coafd a y whether there erf the laac aad the artowat^af .^ *7 7 * ** ) * P he exammed? Socfc ro^TUacm. wowid be ealaabk evidence oa the eheno- oJ theory af the o w e of afexaa. 1a a r***-=.l lenrt (J Dtvid*or. Pratt and C S W. r , *** ChemiaJ En<ince.-," ' " " h i * h f i - , aad the I t itaiiua at ^ I" ,ft''. ** 34) z * P S ' V s d & 'i T S ; t t e the m ~ ,, l l r . S . W . Oahae (Tarbfcrt A a a tem te d * ** ^aeabaa of wafer " " TM" * If t * h w <* haarf DrKhr tJoowaaekT y w i u n fx r a to the ^ r t n h d j d a t x ___ feft that. withoot deBnitr T* jta thei I with the t______ aajrtha at to t h e ____ a aad cxruficauoa at ^ heetb thri g ?Lr *w hiea ( K U .3 r . Paw- W rd that it waa a a l t o W a m m bjil re* n a p which w a t the Mat af m i M ^ , a ., m ,, ^ ' S . 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