Document rBmVapOvkB9xzO5wb0rz3Gon7

FILE NAME: General Electric (GE) DATE: 1934 DOC#: GE081 DOCUMENT DESCRIPTION: GE West Philly Plant Report I frj0f*-- /J/ . J. k./ U . VJfc". . Jle*. . RC. . Asbestos 1b used In the West Philadelphia, plant* Dr* Minor s says th at he discovered a case of a sb e sto sis and removed the. man ' * and th at now the one man working wears a p o sit 1ve-p.-ressure a ir 'helmet. There are three men spinning .asbestos 1h .Sckeneeady, .and, th ire ;ls ,ah asthanat a t the point of d u st formation.* Dr., yosbutgb- has taken X-rays, which are negative. . . The o th e r p la n ts in which a s b e sto s -is .used- are. Bridgeport., York and Meriden, L, U. Gardner advises taking X-*rays There is no other way* ` The dust c o lle c ts along the bronchioe in animals* not in the. long tis s u e . There i s a gradual growth of fibrous tissu e around them, followed by occlusion and c o lla p se . Phagocytes with quarts p a r tic le s move ra p id ly , collect in clumps and then undergo hyaline change, then n-ecraBlE. With granite dust the c e lls remain in the spaces, they do not form nodules*' 'Pis&o&bly'there must be in f edtloti tb,jfi&fc* from grannie' r u s t, but not fro q u a rtz , .^fc&gooytes with a$hB-Stp.S . \are crammed f u l l of d ^ s t and hardly moVB.'flth c a T b h .r u m t^ ite i' they are more ac tiv e . Quarts in h alatio n s following in jectio n of attenuated t u b e r c l e b a c i l l i s ta r t a tuberculous process, so does carborundum, which seems to p o in t to the p ro b a b ility th a t there is free s ilic a in carborundum. The same r e s u lt -occurs i f s ilic o s is is f i r s t produced by in h alatio n and th en the tu b erc^le b a c ill i in je cted . There i s more lik e ly to be Involvement .of the bases of the lungs in silic o sis-tu b e rc u lo sis than in the usual form. Coal dust, iro n o re, marble, and asb esto s have no much e ffe c t. KLF004378 - 2- Granite c u tte rs show lin e a r markings only, not nodules, unless they ta r e tu b e rc u lo sis. Perhaps the 70 per cent 'Of combined s ilic a is responsible fo r . .. the &G petf Obiit o? / % tion follows. the process and when tMber&^&us ^ e c t io h . :oc$ee. ' ' V' " quarts in .the ^rajiite g e ts in to lay and nedtild- s ' - ` "S . ^ ` ` , ' Ohr.da.er says there Is no a sb e sto sis in Canadian' wines and the suggestion. is th a t iro n i s s t i l l present .and th a t i t is pro te c tiv e hat. by -the time i t has reached the -weaving and spinning departments id th e United -States th e iro n has been removed, JimThe f a ilu r e .to fin d tubereuie b a c ill i in cases of -silic o sis may be due. to. the f a c t th a t' s i l i c a causes 16's.s .of -aoid^fastnees, as has -been Shown 'in v itrS *. ..or a quick...test, payers uses in tra p e rito n e a l in je c tio n s . Gardner usee .intriieiitaneous* 'He fin d s a p o s itiv e reactio n withquarts d u s t, very lik e th a t with tu b e rc u lin ' in "24-4$ hours.* Carborundum is in 8 . G ranite, sim ilar to quarts., but not no xftecg vigorous, S ilic a te s pause inflammatory, react,|pn,.3m4. .nc. nscrASis.* The rea6tin *a& be pf&vefct$Tby i'nimersihg thfe dust '^iyo^fine broth* i f the b ro th i s removed the e ffe c t i s re sto re d . The reac tio n is" d e fin ite iy q u a n tita tiv e . <*i**t* produces td a c u t e ^ d S ^ h leukocytes in four hours, and a f te r 48 hours th e re is central 'necrosis with a c e llu la r periphery la s tin g sev eral months. Sayers' re s u lts with; quart are th e same, oarborundua and coal are in ert, S erioite i s present in Barre g ranite, but i t is absent in picher., Chert, and Kftrth Michigan. I t . i s p resen t in Canada quart, which ac ts lik e g ra n ite , n o t lik e ty p ic a l quartz. A d efin ite to x ic ity o f s i l i c a is shown by the e f f e c t on the liv e r , Of fin e .partiles injected into the veins, which cause progressive ` * i destruction o f the substance .of the liv e r,la stin g over three years. Aluminum pxide, used;':! t h is way., is^ Panj|h^0jy.f ^ p yt,is. i^d-raftains in the liv e r * hut .capsa? np injury fit all,.' ^icb6attdip..ia .eiii w i. caShide.-Sip,-t i t'h aibV i | .pSr-cent-^10.3. - ^ v-. *w` KLF004380