Document gewY55M8MazaK75oqpgoDqo3

FILE NAME: General Electric (GE) DATE: 1932 Mar 12 DOC#: GE131 DOCUMENT DESCRIPTION: Letter to NSC President from Mr. R.A. Bull, Foundryman & Researcher RE Importance of Accounting for Variables Studies on Dust-Counts Lnder me fair use provisions of the copyright law of the United States (17 USC 107), this single copy was produced for -eference use onlv rom material m Mamgcnpts and Archives, Yale University Library, P.O. Box 208240, 128 Wall Street, New Haven C l 0652C-8HC ' Unless permission is g ra te d neither this copy nor the words on it may be: reproduced in any form; used by an unauthorized person; or placed m the collectiorp of any institution or individual. r EUSCTR10 fcMH&L B$ WRSE*CE.t tfffltP Ohlwgo, i l l . m r*h 1 2 , 1282 Hr* {!, t, H erggu iet, Pro#! d st $ tio n l S a fe ty eouiMdl P#nnylvni Hotel Mm fork C ity Bi.-ar fir* 8erg{Uiti 1 enolo** ao n fln w tio n o f day l e t t e r # e o t you to d ay, wfeiflh need* l i t t l e ia th# y o f explanation* b U m m to t a t * th a t y m wed * o t fa v o r *! ip re##io n 0 *.eh -.f th * t * ty **lg h t a*n p r***n t s t th luaoheoa m a tin g held a t th * Pals i r Hsu*, iiakoh S , whan 1 was p re se n t. I t wa# p e rfe c tly oovt 1 th a t you recognised th e import*# o f aunh a ctio n toy th * n atio n al s a f e ty Counoil regarding th * rep o rt o f t h * aossKltotees headed toy B r . Greenburg, as i * co n siste n t with pho nature o f the operation involved from too standpoint o f h ea lth conserva tio n snd d esirab le shoo p r a c tic e . mt telegram m y stole you to emphasise t h * e x te n t to which th e foundry in d u stry 3. oone*rood about t h i s m atter th e message was not se a t you with any id ** th a t yoa personally seed r e ite r a tio n of the statement already made regarding tv<* fa o to r* o f d elay and c a r e f u l , e xp ert finelys i a th a t are now involved in the neeeasery holding up o f the cosed, tt # ' a r e p o r t, p rio r to my d e f in ite eotion th a t adght be taken on th * boaia o f th re p o r t. 1 take th is opportunity o f pointing o u t, * an ***. rienfed foundry, who h*e devoted th e la s t twelve year* o f h ie l i f e exclu siv ely to researoh sertt, co o p erativ ely p arried os in e resaber o f p la n t , th a t th e re are a aua&ber o f i t * r y im portant v a ria b le s involved in th e eoopnalvtlen o f re lia b le data on I whiah te toase regarding b la s tin g equipment and su p p lies. ` I t i fu lly appreciated th a t physle lne are thoroughly r e s illa r with research \ work in th e ir vrn f i e l d , mu th at they reeo g n it* a f u lly a* do engineer end \ m e ta llu rg is ts , the aeoesalty fo r elim in atin g *11 p ossib le v a ria b le s when oon- I duotifig teoh nico l in v o atig fttio n , to detent no the in flu en ce o f * fa o to r under J o; s id e r a ilon. Physician# oould not to expected to r e a lis e , without being exp ertly advised, th a t th ere are a y fao to r# in b la stin g which sr v a ria b le s , and h ioh 1 would judge, have not. boon a ti a f a o to r il y provided fo r in the soounulati on o f data on duat-eounte. Asesng sash v a r ia b le s e re tig h tn e s s o f a lo s a r e , v o lo e ity m& volutrae o f i r p ressu re, meohenio*! v e n tila tio n o f working spree fo r op erator, oondlriem o f o s s tin g p r io r to b la s t in g , and co n d itio n o f 0 s tin g a f t e r b le a tin g . A ll o f the co n d itio * should be standardised as f a r s s p o ssib le , ia a m anor th a t seem ingly was not don* in assem bling th e data i a the r e p o r t. I f any I o f th ese p recau tio n s were observed end th e f a c t i * not made c le a r in th e i 1 r e p o r t, a* sense d ic ta te s t h * t th e f i e l d n ote be c a r e f u lly oxmlmd by \ persons competent to judge such s e t te r s * I take th e opportunity of pointing out th a t a very v i t a l fa s te r included in Under the fair use provisions of the copyright law of the United States (17 USC 107), this single copy was produced for reierence use only from material in Manuscripts and Archives, Yale University Library, P.O. Box 208240, 128 Wall Street, New Haven C T C152C-8240. Unless permission is granted, neither this copy nor the words on it may be; reproduced in any form; used by an unauthorized person. or placed m the collections of any institution or individual. ' ' ;. fL J; Under the fair use provisions of the copyright law of the United States (17 USC 107), this single copy was produced for reference use on!v rom material in Manuscripts and Archives, Yale University Library, P.O . Box 208240, 128 Wall Stieet, New Haven C T Q65?C-824C ' Unless permission is granted neither this copy nor the words on it may be: reproduced in any form; used by an unauthorized per'son- or placed m the collections of any institution or individual. ' 2 th e t i r e p ro p o lit, on l i a e in th e tendsr i i s e t i 8 , it h in p r a c tic a l lim ita , th e s t e r i1 clctuacd i a th M eetin g peretia. I t ia not easy t sten d ard is t ta i t e but i t should be dene, by a l l ans, w ithin th e lim ita tio n s t h a t may be a w i l a b l * . S p e c i f i c a l l y , th e eits tin g * to be leaned should *11 be o f th e am* degree o f tm clm txilieess p rio r to b le s t * i s g j sad , f e l l o n i ng t h a t o p e ra tim i, should be o f th e saw degree o f a l e a a l i a e s s . Tea a ep p re e ia te th a t duat~ ast* w d e who c a s tin g s are feeiag b la s te d , happen t hv been, l e t a s sa y , 2S per ce n t a n e le * to s t e r t w ith , would n e c e s s a r ily be very d if f e r e n t fr o dnst-eoasfec taken in elf*niiig c a s tin g * th a t were ?6 per se n t uaelos-a a t th e beginning, t h i s e e r ls b lc i s p t to e x i s t when d ata re m z m b le from d if f e r e n t p la n ts . The r e s o lte n t fig u r e s would be e e ry d if f e r e n t w ith any s in g le kind f b r a s iwe m a te r ia l, e it h e r s t a l l e o r a lite r e i* gnyone ho i s thoroughly f a s i l i a r with th e b la s t!n g o f eestin g y would agree t o th e se statem ent., K one who has h a i m fan*!I l a r i t y w ith such work, would fee apt to th in k about t h a t , witboirt prcsp&iag by an expr i need in d iv id u a l. X t r u s t yea w i ll not- co n sid er t h i s l e t t e r a# unnacessari ly in cre a sin g the volume o f your correspondence m t n i s v ery la p o rta n t s u b je c t. F in a lly , lie s e t o s te tti t h a t th e secibers o f *sy o rg an isatio n re f u lly 8vmpsthia w ith th e o b je c t s o f th e S a lic a ! S a fe ty aimaiJ , which th ey have supported, and a re s tro n g ly d esiro u s f doing everyth in g th a t ova c o n s is te n tly be dene to safeguard th e h e a lth o f t h e i r employees* fa rtfeem o re* th e se bampanie s ap p recia te r a m ly th e s a tu re o f th e s e rv ic e sen lib you rself are g ratu itou sly rendering fo r the public w elfare, Very tru ly yours, (gfigatd) . 4. *11 .1 r e c to r Under the fair use provisions of the copyright law of the United States (17 U SC 107), this single copy was produced for reierence use only from material in Manuscripts and Archives, Yale University Library, P.O Box 208240, 128 Wall Street, New Haven CT CS520-8240. Unless permission is granted, neither this copy nor the words on it may be: reproduced in any form; used by an unauthorized person, or placed m the collections of any institution or individual. '