Document NGpKk0g6dRBkpYenZaGdMBw2b

THE ASSOCIATED ETHYL COMPANY LIMITED W Mec/isbered Office: t h e a d e l p h i, l o s e o k , w c . 2 . Ji/f/n'ss all communications untilJinflier notice to: ARTILLERY HORSE, ARTILLERY ROW, LOIDOIf, S.W. 1 JJeltjAotie: ABBEY 3974-7 JnUjfmmS: ETHYLPORT, SOWEST, LONDON SEitvefotS: H.E. BEDFORD (u.S.A.) J.W, BOYLE H.a.HEATH EVES N.A.GASS L. N, HAMILTON (U.S.A.) U. B. AUG. KESSLER (NETHERLANDS) R.W. SELLERS A. U- SINGLETON (J'ianwpn.crfE. EvSOUSRY t . r . a .s e v a n -- OUR REF. JlJ?fL,tD 0/ea.YOUR REF. 12th February 45 Dr0 R.A. Kehoa, Department of Applied Physiology, University of Cincinnati, Cincinnati, Ohio, U.S.A. Dear Dr. Kehoa, I am sending you herewith a copy of a letter received from the Anglo Iranian dealing with the small container operations and also the action on other matters arising out of my visito Ihe clinical lead figures would seem to indicate a close degree of control on the part of the management at Abadamo We would naturally appreciate it if you could pass on to us your general observations on these data as a comparison between the current conditions and those which you observed. Dr. Cassells and I will shortly be sending you a memorandum on studies being undertaken in can filling at installations in this country. The results are dis concerting especially In view of a considerable aasuat Of effort which has been made In improvements to suction ventilation. This latter report should be ready for sending on to you during the course of the next few days. With kind regards, Yours sinoerely, CopA to: = T.H.A. Bevan Esq. \ o ?n c? - is o *4 Britannic House, Finsbury Circus, Ijcadon E.C.2. 11th January, 1945 Dear Mr. Bevan, You will be interested to learn that the first modified SiramonsHawker 4 gallon Filling Machine has been commissioned by Abadan, and that, in general, the mchine has given every satisfaction. A number.of minor alter ations and additions are proposed by Abadan further to improve operation and reduce spillage and when Abadan have established a completely satisfactory system, a description of the final layout with drawings will be sent to us. We will arrange for you to see these in due course. During his recent visit to Abadan, Mr. Bossett discussed a number of technical points with the Management covering blending procedure, protection of plant and operation etc. which were further dealt with by corres pondence through this office following a meeting with Mr. Fossefct and myself at which Mr. K. B. Ross was present. Abadan have now replied to the questions which were discussed, at the meeting and forwarded to them for comment and I have extracted the reinvent information whiuh I would be glad if you would pass on to Mr. Bassett for his comments. "With regard to the points raised in your memo Ho. 14374, we have the following comments:- {A) Inclusion of spray in samples of atmosphere With the installation of the Simmons-Hawker machine the spray hazard has been reduced considerably. Provided the cap is put on as soon as the can leaves the filling machine there is very little spirit on top of the tins. What little there is comes from slight leakes from the valves. We are now experimenting with an air blast in the holler conveyor tunnel to ensure that there is no liquid left when the cans reach the crimping machine. We shall bear in mind your request for atmosphere tests including droplets of spirit when the next opportunity occurs for atmpsphere testing. cd V (B) Protection of crimping Machine Operator Cd Some time ago we abandoned the forced draught hood for the crimping machine operator as a protective measure eddy currents from the blast - k 0015766 ; i j I 2- - playing on the tin top nsrely disseminated tfcs vapours. We have tried taking the suction duct from the point nearest the crimper on the first Sigaaons-Ha'^ker machine. The entrance duct is rectangular in shape and situated behind the crimping viheeel. Droplets thrown backwards by the action of the rotating disc were collected to some extent by the suction system out tnoao tlwown towards the operator were beyond the suction effect. We propose as an experiment to alter the shape of the duct entrance and to connect this duct alone to one of the fans supplied -with the Siiafflons-Hawker machines and thus provide a more powerful suction. Vie feel that we should concentrate on the provision ox' dried cans at the crimping machine, coupled with a powerful suction applied, through a well tie signed! entrance port. By these mans what is probably the last rwaaittihg hazard in our fourgallon can filling operation can bo removed. (C) Ventilation ( With the installation of the Simaohs-Hawker machines the forced draught system has become obsolute. Vie have however retained it in use since during hot weather it provides more comfortable working con ditions for the operators though contributing little to the dispersal of tetraethyl lead vapours. We now propose to try on3 fan for two filling sheds and if this is successful we shall ask you to provide full flame-proof equipment. The two fans released would be useful for supplying fresh air to the can factory. (D) static We have now mads arrangements to provide efficient earthing systems for the new machines. {IS) Improved blending facilities It is now agreed that we shall install an eductor pump at the motor benzine lead blending plant and we have cabled our requirements for pump motor ana pipe line alterations. When the six point eductors for the old Aviation blending area and for the motor benzine blending area come forward we shall have to arrange for a new blending platform for the latter area, to replace the present congested arrangement. We have had this in mind for some time and we shall be writing shortly putting our proposals before your. (F) Litre T.E.L. Cans for laboratory purposes We confirm that we shall cable when supplies of litre cans of T.E.L. fluid are received, mid also we shall indicate well in advance when replenishments are required. 0015767 3f - - Since our last wrIting on load poisoning precautions we have made several improvement s to each of the ureas concerned and have several others in hand and in preject. These modifications and improvements are xioted below BEgNDIjgG .VlJAS We have reached the conclusion that changing, Hashing, and messing facilities are inadequate at all blending areas. Drawings are in hand for a composite building for each area comprising a changing room with built in lockers which communicates with a wash room with three shower cubicles and a trough with hand washing faeiities. Beyond the wash room a mess room is contemplated with a verandah extension. P.O.D. The gr atest improvement yet made to the P.O.D. area is the installation of the Simiions-Hawker machines. Drawings exist for concreting and draining the whole filling area and construction will commence as soon as other im portant work permits. BRAIM AREA Two 35 galifcn drum filling lines are at times engaged in filling 100 O.N. aviation spirit simultaneously. These two lines are undesirably close and it is felt that a suction draught system is essential to ensure complete safety. This we have in mind and we propose to use one of the fans from a Simraons-Hawker machine for a trial. Later we shall be asking you to provide fans and motors for this purpose. Difficulties have been experienced in the case of the Braim Brum Tilling Installation with the provision of protective clothing, washing facilities for the men, and laundry equipment for the clothing. These difficulties have now been oversoiae and all the men closely associated with filling operations are now protected. The extra clothing from the Braim Installation is a further load on the laundry and has had to be met by the provision of makeshift equipment. Complete security in this connection cannot be obtained until the projected Industrial Clothing Laundry is in operation." In connection with the incidence of lead poisoning amongst the operators, Abadan state than during the hottest months of 1944, high lead spirit was filled infrequently and this was probably the greatest single factor in preventing lead poisoning last year. There has therefore been no opportunity for testing the protective measures under arduous conditions b$rt the Braim Filling Installation is now engaged in a fairly heavy 100 O.N. filling programme and results are awaited. They further inforxa us that a control system to check the clinical con ditions of the vrorkers has been instituted which operates a3 follows:- Kr 0015768 \ \ -4 - Storage aud Report Department Lead Blenders, SBB. Class*, clinically and for lead in urine at three monthly intorvaio. are occasionally carried out ax; snorter intervals than throe norm: usually called for by high lead in urine results. Basel to rl;p the principles laid down by Dr. Kehoe both for sampling and esti. lead ijn urine results are sometimes, obtained. For -she TP Class {P.O.D. 4 gallon can fillers) and for Drum fillers^ the present arrangement is that the men report to two-monthly intervals and are detained for 48 hours during which clinical eshminatiqms are carried oft .and two separate 34 hour n axe obtained, for .laud estimation. This double check; was inst.. attempt to reduce the anomalous lead in urine results. Since in the1 TP: and. DP classes is large, such eosaminations are carried sen only. For tne information of Dr. Kehoe, I am including seat the results of clinical examinations and lead in urine estimuli SE3 Class and for selected man in the TP and DF Classes. Th.. compiled from, our records -and are somewhat abbreviated, if nee- expand the information. You will notice that Abadan particularly stress ohe ano; they obtain in estimations of the lead content of urine. Uci. enough to draw Dr. Kehoe5s particular attention to this point a. grateful in due course, for his reaction to pass on to Abadan. Yours sincerely, C. A. HARHlSOi! Mr. T. R. A. Sevan, The Associated Ethyl Co. Ltdi, Artillery House, Artillery Row, London, S.W.l. K 0015769