Document 0q3eOOdY8Qy1xZBG27e8pvyBk

FILE NAME: Boilermaking (BOIL) DATE: 1936 DOC#: BOIL002 DOCUMENT DESCRIPTION: Trade Journal Article Staybolt material in the storeroom represents a relatively small cost per bolt. Forged, threaded and'applied, as a replacement in a locomotive, it represents more than a dollar in actual cost. * * In many cases the out-of service cost for the locomotive must be added to this. * * Yet between the poorest staybolt material and the best there is a negligible difference in material cost. * The use of Agathon Alloy Staybolts keeps renewal costs at a minimum. * Agathon Staybolt Steel has high tensile strength, high resistance to fatigue, and high resistance to corrosion. * It with stands the high pressures, the constant vibra tion and weaving of the firebox. It gives longer service at lower costs. * Specify Agathon Staybolt Steel for your difficult jobs. Complete details on request. Address Department BM. mittee Reports Dust Control : 3> .The report of the pscvenjtive engineering committee of Air Hygiene Foundation^ written by Professor Phi ip ^Drinker of Hrvard)'chairman, nd other technical spe cialists on the committee, advises that engineers in the ' "dusty trades" can and should cut heavy dust concentra- . 'lions below the prsent linn'ts v^rranted by medical knowledge. This action js important, the rpbrt explains, not only to f i l l e r , safeguard the health of workmen I n to give employers the maximum protection against i n just claims. " Y ` - ' , Concerning: the. size of dust particles, the report r.! 'serves that much has been made of the fact that partie t found in autopsied lungs, are of the order of *1 micron . ' (/Snoot) of an-inch )-^ b o u t like the conunon bacteria ;it is argued,'therefore, that the human anatomy and .physiology exercises "some phenomenally accurate si c grading which excludes larger particles." f . ' The report says ``there is no reason whatever to 1c >1: .for any such mysterious explanation. The sizing is (It k ; in the air before the dust is breathed and not by the man. ''after it has been breathed." It is pointed out that :in larger particles tend to fall from the air by their o n weight and that "only those small enough to act as p : of the transporting air stream are likelv ever to reach : 1, .lungs." , ' "In diseases`such as silicosis and asbestosis, particle must reach the alveoli, (minute air sacs of the lungs) e no silicosis or asbestosis results. In maladies like I p fever, the harm is done by particles which may be 15 ; ) microns instead of 1 micron. "Toxic dusts such as lead and manganese are nu ;h more likely to produc ill effects if breathed than if s\\ d- lowed. The reason for this difference is physiologic .1 : it is established and should not be ignored in dust c u- trol problems. Again, common-sense, tells us that h- finer particles of lead are vastly more apt to be breatl than the larger/ ! ? ' , . "It follows then)that dust control for hygienic reas . ; should be aimed at the fine rather than the coarse pa des. Continuing this argument to its logical conclus: ; . if one could avoid use of 1 micron dusts or less, or dude them from the dust which passes a 325-m /screen, nearly all dust diseases would be eliminated. 1 i > is not at all an academic idea, for de-dusting procer are not new and are being applied in many indust t n. 'If some of the mechanical ingenuity which is now be y; applied unthinkingly to creating 1 micron dust w i directed to ways for avoiding it, probably;it. would ... discovered that dusts which are too large to be bread : i .would serve many processes just as well as those wi d are around 1 micron in size." ; The report includes a table giving latest available Yformation on the minimum air velocities necessary : i certain industries to insure the maintenance of dust c : centrations atisafe levels. The preventive engineering committee asserts t t -many firms have,^neglected heavy dust concentrador : i . cases where the;dust is of no proven harm, and adds : % "There is no satisfactory, medical answer'at presen t > this question, but the engineer is making a had mist Y.if he lets men breathe heavy dust concentrations of . material. If no other reason for dust control can i - found, then one should read transcripts of some of ; recent suits at common law in which fantastic dan.. : ; . for alleged silicosis were granted Jto pen whp breat e 1 ,vdust containing little or no silica. The courts and . pensatiop boards are not impr^sfed with-subtle di n - ' .' ' ' ' ., -it: tions between dusts with 10 percent and 40 percent quartz, especially when medical experts are reluctant to make definite statements as to the comparative signifi cance of such differences. : ! "It would be well to realize that men working in dusty trades suffer far more from respirator)' troubles of ail kinds than do men who work in clean air. The evidence; that excessive dustiness of any kind is harmful is beyond argument." ' The committee attributes, the handicap in this general field to the lack of fundamental data and recommends a number of specific engineering researches for the Foun dation to undertake in the coming year. -. Republic Appoints Special R epresentative Y William Hogenson has been named special representa tive on Toucan Iron enameling stock, according to an an nouncement by F. H. Ramage. manager of sales promo tion. Republic Steel Corporation. His work will be in conjunction with that department under the;new Product Development Division. Mr. Hogenson comes to Repub lic with a background of technical and business training gained at the universities of Michigan and Chicago, and a close association with the enameling industry through his most recent connection. Chicago Vitreous Enamel Products Company. >- l, V - . . . ' Singineering.Experim ents)Bulletins; : The Engineering Experimental Station of the Uni versity of Illinois has issued recently a series of bulletins dealing with a variety of engineering problems.a<Bul letin No. 283. written by Frederick G. Straub, deals with "A Study of the Reactions of Various Inorganic and Organic Salts in Preventing Scale in Steam Boilers." Bulletin No. 284, dealing with "Oxidation and Loss-of V eight of Clay Bodies during Firing." was'written by William R. Morgan. Bulletin No. 285, "Possible Re covery of Coal from Waste at Illinois Mines." was written by Cloyde M. Smith and David R. Mitchell. Bulletin No. 286, by Hardy Cross, discusses and de scribes an "Analysis of Flow in Networks of Conduits or Conductors." Copies of these publications mav be obtained without charge upon application to the Engi neering Experimental Station, Urbana, 111., up to March 1, 1937,'or until the supply is exhausted. - y B y e r s A ppoints N e w M an ager .. of Sales Prom otion M. J. Czamiecki. vice-president in charge of sales. A. M. Byers Company, Pittsburgh, announces the follow ing appointments that, were made effective November 2. 1936: T..:, Y v Y Y, ' ; ' George B. Cushing as manager of sales promotion. Mr. Cushing came with A. M. Byers Company in 1928 tpf organize and head the present advertising department. Subsequently in 1931 he organized a technical promotion group now known as the Engineering Service Depart ment. . , ' -- B. D. Landes, who has been in the technical group since its inception, has been appointed manager of the Engineering Service Department. i T. C. Winans. who has been in the advertising depart- men t since 1930, has been appointed advertising man ager. ' y . - f y - Both the manager of the engineering service depart ment and the advertising manager become a part o f the ' Y;Y Y !- 7.Y " Y Y V '- V - v - : 1 ; U. ' 5 ; 0F A enrcs ox t h i : M a ai*d final THE SERT ture of s e c r I T y RC.Il BR/c ' . ' *vS'i ; # r -if ; i* 7 W * to-W ify JtonjuM Aj'eh B rick su pp ly k economical locomotive The American Arch ( stock of Security Are recognizes its responsii most iteffls for Pany, in maintaining an adequate yv ttoo th. fe rTailr*oad"s. " f c n t p Z u , mont ^ | b a n ! ^ `; ady for u m ^ ship. This/facilitates loconv " attaining maximum f arch maintenance and aids in ' economy. A B B ISO N .W A i.K E B H EFRACTOBIES CO. ite fra e to rg SpettO ia AM ERICAN ARCH CO. :KT ' ' I W C O B P O B A T E B iro C om bustion [ * ! ; OA*, t . rh uiddpw ,w i Ppitadelphj. L' Entere. . , ; N U M B E R 12 - p - ? ; ; ." i * , ; r \ " ^ :r the A o O U rc h * 7 9 " * * * * * d * matter. January . IWJ, S? -S