Rolls-Royce Archives

Rolls-Royce Experimental Archives: Box ExFiles\Box 115\5\        Box Selection

IdentifierEntry
scan0001 Letter to Wellworthy Ltd. discussing experience and precautions with Aluminium-tin bearing alloys.
View original record c. H1. Rm/Mths.1/MH. 1020 ? 2nd. February 1938. Messrs. Wellworthy Ltd., Lymington, HANTS. For the attention of Mr. John Howlett. Dear Sirs, A.C. Bearing Alloys. With reference to the recent visit of…

scan0002 Providing recommendations for bearing interference fit, working clearances, and crankshaft hardness.
View original record Messrs. Wellworthy Ltd. -2- 2nd. February 1938. Interference Fit. We recommend that bearings are fitted with their outside diameter greater than the diameter of the housing into which it fits. The…

scan0003 Oil filtration recommendations and updates on connecting-rod bearings supplied to various manufacturers.
View original record Messrs. Wellworthy Ltd. -3- 2nd. February 1938 Filtration. We have pointed out to all the people to whom we have supplied bearings the importance of good filters and we recommend they use a filter of…

scan0004 Letter to Wellworthy Ltd. regarding the supply of bearings and bearing blanks for A.E.C. Ltd.
View original record Messrs. Wellworthy Ltd. -4- 2nd. February 1938. already been supplied with material for 50 bearings which apparently should satisfy their needs. A.E.C. We have in hand at the moment two sets of main…

scan0005 Letter from Wellworthy Piston Rings Ltd. regarding the performance of the new R.R. A.C. 6 bearing and requesting blueprints to commence production.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE - WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD . E . 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0006 Letter from Wellworthy Piston Rings Ltd. concerning A.C. Bearing Alloys.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762-3 178 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E . 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0007 Letter from Wellworthy Piston Rings regarding R.R.A.C.6 bearing material and supply from High Duty Alloys.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS Rd S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E . 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0008 Letter to a supplier regarding the production of trial bearings and potential compatibility issues with engines.
View original record 1020a Rm/Mths.5/MH. 9th. February 1938. Messrs. Wellworthy Ltd., Lymington, HANTS. For the attention of Mr.F.Blackith. Dear Sirs, We thank you for your letter of the 7th. inst. and note that you have…

scan0009 Letter to Ariel Motors Ltd. regarding the composition and properties of two bearing material alloys, RR.AC.6 and RR.AC.7.
View original record For your information. R. Royce - 10209 FB/EHF. 51690 16th March,1938. Dict. 15..38. Messrs.Ariel Motors Ltd., Ariel Works, Selly Oak, Birmingham, 29. Dear Sirs, Attention of F. Anstey,Esq. We thank…

scan0010 Report to Ariel Motors Ltd. on a modified bearing alloy, its composition, and application guidance.
View original record 1. Messrs. Ariel Motors Ltd. There is, in addition to the foregoing, a modified form of AC.7, which it will be noted eliminates Magnesium and Antimony contents, and the Copper content is slightly…

scan0011 Letter from Wellworthy Piston Rings Ltd. to Ariel Motors Ltd. providing recommended bearing clearances.
View original record 2 Messrs. Ariel Motors Ltd. bearings halves stand proud of the joint face. This should be 0.001" on each side of the bearing relative to the joint face for each half of bearing. WORKING CLEARANCE. We…

scan0012 Letter from Wellworthy Piston Rings Ltd. to High Duty Alloys Ltd. regarding progress on casting dies and bearings for the RR AC.6 and AC.7.
View original record Copy to Rolls Royce Ltd. For your information. Agents Copy BUY 272 FB/EHF Attention of Mr. Richards. 21st March, 1938. Messrs. High Duty Alloys Ltd., Slough, Bucks. Dear Mr. Richards, We thank you…

scan0013 Letter from Wellworthy Piston Rings discussing the manufacture and supply of Aluminium-tin bearings for E.R.A. cars.
View original record 1020a. SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0014 Cover letter from Wellworthy Piston Rings Ltd. enclosing a copy of a letter about A.C.6 material.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 1620a 28th March, 1938. R. Matthews,…

scan0015 Letter to High Duty Alloys Ltd. concerning materials for a main floating bearing trial.
View original record JH/KES 28th March, 1938. W. C. Devereux, Esq., High Duty Alloys Ltd., Buckingham Avenue, Trading Estate, SLOUGH, Bucks. My dear Dev, I was down at Bristol the other day and talking to them about…

scan0016 Letter from Wellworthy Piston Rings Ltd. regarding an A.C.S. Bearing.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762/3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0017 Letter from Wellworthy Piston Rings Ltd. to Ariel Motors Ltd. regarding the supply of trial bearings.
View original record BUY 372 Agents Copy Messrs. Rolls Royce FB/EHF. 2nd April, 1938. Dict. 1.4.38. Messrs. Ariel Motors Ltd., Ariel Works, Selly Oak, Birmingham, 29. Dear Sirs, Attention of F.Anstey, Esq. We are looking…

scan0018 Letter to The Excelsior Motor Co. Ltd. concerning the composition and application of AC.6. bearing material.
View original record BUY 272 Agents Copy Messrs. Rolls Royce FB/EHF. Attention of Mr. Bruce. 2nd April, 1938. Dict.1.4.38. The Excelsior Motor Co, Ltd., King's Road, Tyseley, Birmingham II. Dear Sirs, With further…

scan0019 Technical letter from Wellworthy Piston Rings Ltd. detailing bearing specifications for interference fit, nip, and working clearances.
View original record 1. cannot be taken in establishing a sufficient oil supply; this particularly applies to bearings for use in high speed high performance engines, where explosion and inertia loads can be very high.…

scan0020 Letter concerning Ariel big end bearings and arranging a meeting with Ariel Motors.
View original record 1020 Rm/Mths.4/MH. 22nd. April 1938. Messrs. Wellworthy Ltd., Lymington, HANTS. For the attention of Mr.Blackith. Dear Sirs, We thank you for your letter of the 20th. inst. with reference to Ariel big…

scan0021 Letter from Wellworthy Piston Rings discussing potential collaboration on bearing applications with various firms.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0022 Continuation of a letter from Wellworthy Piston Rings discussing a meeting and a design for a main bearing bush.
View original record WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1 Messrs. Rolls Royce Ltd. confirmation from Gardners that they would like to go ahead I should be only too pleased to fix up a date and time to meet…

scan0023 Correspondence with Wellworthy Piston Rings Ltd. regarding bearing alloy development and production.
View original record 1020a Rml0/R. 2nd May, 1938. J.W. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, Hants: Dear Howlett, I was away from the Works when you took over the R.R. bearing alloy. We have your letter…

scan0024 Letter from Wellworthy Piston Rings Ltd. discussing the demand, experimentation, and proposed use of bearings for soft shafts.
View original record 1020a? WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 5th May, 1938. W. A.…

scan0025 Letter to W. A. Robotham regarding difficulties producing A.C.6 material and arrangements for castings.
View original record JH/KES - 2 - 5th May, 1938. W. A. Robotham, Esq., (contd). Am I to gather from your letter that there are difficulties in producing the A.C.6. material, because we were given to understand when we…

scan0026 Letter discussing the performance and production of A.C.6 and A.C.9 bearing alloys with hard and soft shafts.
View original record 1020a ? Rml/R. 6th May, 1938. J. Howlett, Esq., Managing Director, Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Mr. Howlett, From what you say it would evidently be an exceedingly good thing…

scan0027 Letter to J. Howlett, Esq. discussing the development, performance, and lubrication of various engine bearing alloys.
View original record J. Howlett, Esq. -2- 9.5.38. We think it extremely doubtful, however, that A.C. alloy will make a good main bearing material against a .4 carbon shaft when run at high rates of revolution. It is very…

scan0028 Letter from the Personal Secretary at Wellworthy Piston Rings Ltd. acknowledging a letter sent to Mr. Howlett.
View original record 1020a? WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 10th May, 1938. W. A.…

scan0029 Letter from Wellworthy Piston Rings Ltd. discussing Aluminium-tin bearings and material specifications.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 1762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E . 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0030 Continuation letter from supplier Wellworthy Piston Rings Ltd. regarding a misunderstanding over 'L' section ring specifications.
View original record CONTINUATION No. 1........... adopted and its approximate cost, which should be forwarded to Mr. Howlett. Regarding the "L" section rings, it would appear that there has been some misunderstanding…

scan0031 Telegram received by telephone regarding a proposed visit to AEC.
View original record ROLLS-ROYCE LTD. MTNS TELEGRAM RECEIVED BY TELEPHONE. STAMPS: M.D. MAY 1938, RECEIVED 17 MAY Time Received: 11.10 Date: 17.5.38. To: Roycar By: DB from: Lymington 10 29 23Wds Message: Our letter 16th…

scan0032 Letter to Messrs. Wellworthy Ltd. confirming a visit to the A.E.C.
View original record 10206 EXPERIMENTAL DEPT. Rm/Mths.12/JH. 17th May, 1938. Messrs. Wellworthy Ltd., Lymington, Hants. For the attention of Mr. Blackith. Dear Sirs, We thank you for your letter of yesterdays date and…

scan0033 Telegram correcting a prior letter regarding a meeting with AEC, proposing Thursday instead of Friday.
View original record Charges to pay s. d. RECEIVED POST OFFICE TELEGRAM 1020a No. 075 OFFICE STAMP: DERBY 4 MAR 38 Prefix. Time handed in. Office of Origin and Service Instructions. Words. AM 11 06 m 38 From 138 10.29…

scan0034 Telex message concerning a change of appointment time with AEC.
View original record 1020a 18.5.38. BLACKITH WELLWORTHY LYMINGTON. APPOINTMENT WITH AEC TOMORROW TWO NOT THREE. ROYCAR.

scan0035 Letter from Wellworthy Piston Rings Ltd. regarding the production and testing of RR.AC.6. bearings.
View original record For your information 102 a, Agents Copy Rolls Royce Ltd. BUV 292 FB/EHV. 62325 WLM/VET. 6th May, 1938. The Bristol Tramways & Carriage Co, Ltd., Motor Maintenance Department, Berkeley Street, Lawrence…

scan0036 Letter from Wellworthy Piston Rings Ltd. to Morris Commercial Cars Ltd. regarding crankshaft steel specifications and hardness.
View original record BUY 272 Agents Copy Rolls Royce 1020a FB/EHF.62054 NJA/GMB. 10th May, 1938. Messrs. Morris Commercial Cars Ltd., Adderley Park, Birmingham, 8. Dear Sirs, Attention of H. J. Artiss, Esq. We thank you…

scan0037 Letter to Ricardo & Co. detailing the composition and properties of the AC.9 aluminium-tin bearing material.
View original record 1020a wellworthy file. BUY 272 Agents Copy Hellehayo FB/WHF. 65261 ATE/S/67371. 23rd May, 1938. Messrs. Ricardo & Co, (1927) Ltd., Bridge Works, Shoreham-by-Sea, SUSSEX. Dear Sirs, Attention of Major…

scan0038 Bearing specifications, lubrication, fit, and clearances for connecting rods and main bearings.
View original record STS YUS Agent's Copy 1. Messrs. Ricardo & Co. (1927) Ltd. are very good, as indicated by exposure to air, etc., nor is it liable to corrosion as a bearing in contact with oil; this is known to occur…

scan0039 Letter from Wellworthy Piston Rings Ltd. to Messrs. Ricardo & Co. regarding bearing clearances and production delays.
View original record 2 Messrs. Ricardo & Co. (1927) Ltd., the following clearances are necessary :- Minimum - 0.0012/inch diameter. Maximum - 0.00155/inch diameter. Preferred - 0.00135/inch diameter. We trust that this…

scan0040 Letter to Wellworthy Piston Rings Ltd. regarding the applications and performance of an aluminium bearing alloy.
View original record Rm. 1020a. Rml/R. 15th August, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Mr. Howlett, When you left the list with me the other day of people to whom you are…

scan0041 Letter from Wellworthy Piston Rings Ltd. enclosing correspondence from other firms about aluminium-tin bearing material.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0042 Letter from Wellworthy Piston Rings Ltd. concerning a change in material for Aluminium-tin bushes from AC.6 to AC.9.
View original record BUY 272 Agents Copy A.R. FB/EHP. 2nd June, 1938. The Bristol Aero Co, Ltd., Filton House, Bristol. Dear Sirs, Attention of Mr. Ninnes. With further reference to the Aluminium-tin bushes, we have to…

scan0043 Letter to Dennis Bros, Ltd. regarding blueprints, pricing, and production of Aluminium-tin alloy bearings.
View original record BUY 272 Agents Copy RR FB/EHF. 67260/67449 AGC/CEM. 1st June, 1938. Messrs. Dennis Bros, Ltd., Guildford, Surrey. Dear Sirs, Attention of Mr. Milne. We thank you for your letter of the 28th May…

scan0044 Correspondence from Wellworthy Piston Rings Ltd. regarding difficulties with the AC.6 bearing and an oil groove.
View original record 1. Agents Copy of bearing, and it is therefore our intention to drop the AC.6. which presents certain difficulties in production, mainly from a casting point of view. The one point outstanding,…

scan0045 Letter to Bristol Aero Co. Ltd. clarifying the supply of rough-machined connecting rod bush castings.
View original record BUY 272 Agents Copy GR FB/EHF. 66992 ENGINES DC/305/CR/GKO. Attention of Mr. Ninnes. 31st May, 1938. The Bristol Aero Co,Ltd., Filton House, Bristol. Dear Sirs, Order No.46964. With reference to your…

scan0046 Letter to Albion Motors Ltd. detailing the composition and characteristics of AC.9 Aluminium-tin bearing material.
View original record R.R. FR/EHF. Attention of Mr. MacDonald. Messrs. Albion Motors Ltd., Scotstoun, Glasgow. 27th May, 1938. Dear Mr. MacDonald, We were very pleased to have the opportunity of showing you round our…

scan0047 Bearing materials, lubrication, fitting, and clearance specifications.
View original record 1. to corrosion as a bearing in contact with oil; this is known to occur with Cadmium and Lead Bronze. The Brinell hardness is only slightly reduced when at 150°C. whereas normal Babbit metal falls…

scan0048 The composition and performance of alternative bearing and valve seat insert materials.
View original record As mentioned to you there was an alternative material known as AC.9. and just as a matter of interest we are giving you the analysis of this material, which in all other characteristics may be…

scan0049 Letter from Wellworthy Piston Rings Ltd. discussing the composition and performance of different valve seats.
View original record 3 Phosphorus ........ Max. .70 Manganese ........ .50- 1.0 Chromium ......... .80 -1.1 Molybdenum ....... .80 -1.1 but whereas the Thompson "Durachrome" Valve Seat is cast in the hardened condition,…

scan0050 Letter from Wellworthy Piston Rings Ltd. regarding a supply delay for modified bearings.
View original record BUY 272 Agents Copy R.R. FB/EHF.65784 BM/2. 30th May, 1938. Messrs. Morris Commercial Cars Ltd., Adderley Park, Birmingham, 8. Attention of Mr.Meeson. Dear Sirs, Further to our 'phone conversation of…

scan0051 Letter from Wellworthy Pistonrings Ltd regarding the production of a centre main bearing for a 4 cylinder engine.
View original record BOY 272 Agents Copy RR FB/EHP. 67261 20th May, 1938. J. Milne, Esq., Messrs. Dennis Bros, Ltd., Guildford. Dear Mr. Milne, With reference to our 'phone conversation of today's date, the letter you…

scan0052 Letter from Wellworthy Piston Rings Ltd. to The Excelsior Motor Co. Ltd. regarding a production delay for Aluminium-tin bearings due to material improvements.
View original record BUY 272 Agents Copy RR FS/EHF. 65368 AWB/PP. 25th May, 1928. The Excelsior Motor Co,Ltd., Kings Road, Tyseley, Birmingham, II. Dear Sirs, Attention of A. Bruce. Esq. With reference to your letter of…

scan0053 Letter from Wellworthy Piston Rings Ltd. to Leyland Motors Ltd. regarding a delay in an order for bearing shells.
View original record BUY 272 Agents Copy L Royce 1020a Files FB/EHF. 11th May, 1938. Messrs. Leyland Motors Ltd., Leyland, Lancs. Dear Sirs, Your Order No. HCO/S44/43. With further to your order as above, which is for…

scan0054 Letter to High Duty Alloys Ltd. regarding a change in bearing metal specification from A.C.6 to A.C.9.
View original record Copy for Mr. Robotham. (From J.W.Howlett) MATTHEWS JH/CJR. 23rd May, 1938. W. C. Devereux Esq., Messrs. High Duty Alloys, Ltd., Trading Estate, Slough. Dear Mr. Devereux, There was a conference on…

scan0055 Letter from Wellworthy Piston Rings Ltd. regarding a delivery delay for bearings made from RR. AC.6 material.
View original record BUY 272 Agents Copy Rolls Royce FB/EHF. 64036 Files BH/S - 19. 19th May, 1938. Messrs. Morris Commercial Cars Ltd., Adderley Park, Birmingham, 6. Dear Sirs, Attention of Mr. Artiss. We have received…

scan0056 Letter to J.W. Howlett regarding the urgent supply of bearings for Leyland cub engines.
View original record 1020a Rm4/R. 28th June, 1938. J.W. Howlett, Esq., Wellworthy Piston Rings Limited, Lymington, HANTS: Dear Howlett, We had a visit from Mr. Markland of the Leyland Research on Friday last week, and he…

scan0057 Letter discussing the pricing of bearings and asking for a decision on whether to make a formal offer.
View original record -2- 28.6.38. that Messrs. Wellworthys will ultimately supply production quantities of these bearings, we have refrained from putting a price in writing. We did, however, give Leylands a tentative…

scan0058 Letter to Wellworthy Piston Rings regarding a visit to Dennis Motors and the supply of lead bronze bearings.
View original record 1020a Rm5/R. 28th June, 1938. J.W. Howlett, Esq., Wellworthy Piston Rings Limited, Lymington, HANTS: Dear Howlett, Mr. Matthews paid a visit to Dennis Motors yesterday, and I attach a copy of his…

scan0059 Visit to Dennis Bros. to inspect the performance of A.C.6 connecting rod bearings.
View original record 28.6.38. REPORT ON VISIT TO MESSRS. DENNIS BROS. This visit was made to the Dennis Works to inspect the set of A.C.6 connecting rod bearings supplied to them last December. The Writer interviewed Mr.…

scan0060 Visit to Dennis Bros. regarding engine bearing material issues and a potential filtration solution.
View original record -2- they will be able to get over their trouble in time. Providing the scheme works it should be an ideal form of filtration if used in conjunction with a By-pass filter. The Writer, whilst at Dennis…

scan0061 Letter from Wellworthy Piston Rings Ltd. discussing bearing production for Leyland engines, delays due to a high number of orders, and pricing strategy.
View original record MTHS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/CJR. 30th June, 1938. Files…

scan0062 Letter discussing competitive strategy for bearings, specification changes, price policy, and production status.
View original record - 2 - W. A. Robotham Esq. 30th June, 1938. a chat with you, and perhaps Mr. Devereux also, as to what sort of basis we ought to try and be on. Are we in effect to be competitive with the white metal…

scan0063 Cost breakdown for the production of half bearing castings.
View original record JSW/KES 2nd July, 1938. Price of making half Bearing casting without material but with overheads ...... 3¾d each Price of material with depreciation and melting costs ........................ 1/7d per…

scan0064 Letter to Wellworthy Ltd. proposing prices for the production of bearing blanks for Leyland Motors.
View original record 1020a Experimental Dept. Rm/Mths.9/MH. 30th. June 1938. Messrs.Wellworthy Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, With reference to the bearing blanks we propose to…

scan0065 Cover letter forwarding a copy of a letter from Mr. Howlett regarding bearing alloys.
View original record 1020a Hs. from Wn. Copy to Rm. [Signature] Mn9/EIT.30.6.38. Re: BEARING ALLOYS. I send you copy of a letter of the 28th June, received from Mr. Howlett, as this seems the best way of conveying his…

scan0066 Letter from Wellworthy Piston Rings Ltd. providing a progress report on the production of bearings.
View original record COPY. WELLWORTHY PISTON RINGS LTD. LYMINGTON, Hants. 28th June, 1938. JH/CJR. R. B. Wilson. Esq., Messrs. Rolls-Royce, Ltd., Derby. Dear Mr. Wilson, Further to my previous report on the subject of…

scan0067 Letter from John Howlett to R. B. Wilson regarding production scheduling, tooling, and delivery priorities for various customers.
View original record -2- R. B. Wilson Esq. 28th June, 1938. I understand that the Leyland people have been along to Mr. Robotham and complained with regard to delivery, but we have already produced all the Leyland…

scan0068 List of customer parts, corresponding internal part numbers, and descriptions for jobs in the shops.
View original record Drawings for the following have already been completed, and the jobs are in the shops:-- CUSTOMER. CUSTOMER'S PART NO. OUR PART NO. DESCRIPTION. Albion Motors Ltd. 70811 C & D BP.0032 Big End Bush…

scan0069 Parts list for various engine bearings, cross-referencing manufacturer part numbers.
View original record Leyland WSX 32907 BF.0007 8 litre Oil Engine Bearing Morris Commercial Cars, Ltd. V.120 BP.0009 Crankshaft Main Bearing Front (Top Half) " " " V.121. BP.0010 ditto. (Bottom Half) " " " V.122 BP.0011…

scan0070 Letter from Wellworthy Piston Rings Ltd. forwarding a copy of correspondence regarding a works visit.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 1st July, 1938. CJR. W.…

scan0071 Letter to High Duty Alloys, Ltd. discussing heat treatment and hardness testing procedures for bearings.
View original record Copy to Mr. Robotham. JH/CJR. 1st July, 1938. W. C. Devereux Esq., Messrs. High Duty Alloys, Ltd., Trading Estate, Slough, Bucks. Dear Mr. Devereux, A.C.9. Thanks very much for the visit of your Mr.…

scan0072 Page two of a letter addressed to W.C. Devereux Esq. regarding a recent visit from a Mr. Richards.
View original record - 2 - W. C. Devereux Esq. 1st July, 1938. Mr. Richards had been down here, that we had discussed these points amongst us, and I thank you for his visit and assure you we are doing our utmost to get…

scan0073 Letter to J. Howlett of Wellworthy Piston Rings Ltd. to arrange a meeting to discuss a bearing situation.
View original record 1020a. Rm3/R. 2nd July, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, Hants: Dear Mr. Howlett, Many thanks for your letter of the 30th June. The only day which I have free next week…

scan0074 Letter from Wellworthy Piston Rings specialists regarding Aluminium-tin bearings.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762/3 112 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 110 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0075 Letter to Scammell Lorries Ltd. regarding specifications and tolerances for RR. AC9 bearings.
View original record BMY 272 Agents Copy. Rolls Royce FB/EHF. 5th July, 1938. Messrs. Scammell Lorries Ltd., Watford West, Herts. Dear Sirs, Attention of Mr. Wastie. The writer has had an opportunity of seeing your letter…

scan0076 Clearances for connecting rod and main bearings.
View original record Agents Copy. by Rolls Royce in this matter. (a) CONNECTING ROD BEARINGS. For connecting rods we find the following clearances satisfactory - Minimum - 0.001/inch diameter. Maximum - 0.0015/inch…

scan0077 Letter from Wellworthy Piston Rings Ltd. detailing connecting rod and main bearing clearances.
View original record Your Copy 1. by Rolls Royce in this matter - (a) CONNECTING ROD BEARINGS - CLEARANCES. Minimum - 0.001/inch diameter. Maximum - 0.0015/inch diameter. (b) MAIN BEARINGS - where crankcase and crankshaft…

scan0078 Letter detailing the composition and properties of the new AC.9 bearing material.
View original record BUY 17a Agents Copy. R R FE/EHF. Attention of Hugh Gardner, Esq. 4th July, 1938. Messrs. L. Gardner & Sons, Ltd., Patricroft, Manchester. Dear Mr. Gardner, Since discussing with you recently the…

scan0079 From Wellworthy Piston Rings Ltd. detailing recommended working clearances and nip for connecting rod and main bearings.
View original record W.EES/RB diameter greater than the diameter of the housing into which its fits. The figure we usually work to is 0.0005/inch diameter. Nip of Bearings in Housing. By nip of bearing, we mean the amount…

scan0080 Letter from Wellworthy Piston Rings Ltd. forwarding a memorandum and I.A.E. research list regarding bearings.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 1020a. .KES 7th July, 1938. W.…

scan0081 From Mr. Blackith discussing observations on bearings at Dennis Bros. and Glacier Metal Co.
View original record COPY...KES MEMORANDUM from Mr. Blackith, Technical Dept. 30.6.38. Whilst at Dennis Bros., on Monday I saw the bearings which have now run 310 hours on full load and which appear to be very…

scan0082 Summary of various aluminium alloys used for bearing materials.
View original record COPY...KES I.A.E. RESEARCH AND STANDARDISATION COMMITTEE Research Department, Great West Road, Brentford, Middx. No.8824. Class 278,57. March, 1938. Aluminium Bearing Materials. R. Hinzman Zeit. f.…

scan0083 Letter to Wellworthy Ltd. regarding drawings of bearings required by Leylands.
View original record 1020a Experimental Dept. Rm/Gry.5/MH. 8th. July 1938. Messrs. Wellworthy Ltd., Lymington, HANTS. Dear Sirs, As arranged during the conversation Mr.Howlett had with Mr.Robotham yesterday, we send you…

scan0084 Copy of a Leyland Motors order for bearing castings to be despatched directly to Wellworthy Piston Rings Ltd.
View original record C O P Y. LEYLAND ORDER. NO. HQ0/896/94. Messrs.Rolls-Royce Ltd., Derby. Req. No. 598/89. Dept. 34. 7th. July 1938. 42 Castings for Bearing. Part No. X.33274. 160 Castings for Bearing. Part No.…

scan0085 Letter to J. Howlett of Wellworthy Piston Rings Ltd. regarding the handling of Leyland drawings and other supplier issues.
View original record 102 09 Rm5/R. 9th July, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Mr. Howlett, In view of your remarks the other day, I have forwarded all the Leyland drawings to…

scan0086 Message arranging a visit to Wellworthy, Lyminton to discuss a bearing failure.
View original record 1020a Rm / JHK. 11.7.38. WELLWORTHY, LYMINTON. BLACKITH. HAVE ARRANGED VISIT DENNIS 2 p.m. WEDNESDAY NEXT HOPE SEE YOU THERE RE BEARING FAILURE. Matthews.

scan0087 Letter from Wellworthy Piston Rings Ltd. regarding a bearing failure at 'Dennis', the hardness of the material, and arranging a meeting.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 11th July, 1938. W.…

scan0088 Letter of acknowledgement addressed to John Howlett of Wellworthy Piston Rings Ltd.
View original record 1020a Rm4/R. 15th July, 1938. John Howlett, Esq., Messrs. Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Mr. Howlett, Thank you for your letter of July 11th which I have just opened having been…

scan0089 Letter to J. Howlett of Wellworthy Piston Rings regarding Perkins Diesel Engine and Dennis Bros.
View original record 1020a Rm2/R. 18th July, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Howlett, We had the Perkins Diesel Engine people up here last week. They seem to be a go ahead sort…

scan0090 Letter from Wellworthy Piston Rings Ltd. regarding bearing replacements for Perkins Diesel Engines and a report on a Dennis failure.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 20th July, 1938. W. A.…

scan0091 Letter from supplier Wellworthy Piston Rings Ltd. concerning the production progress of A.C.9. Bearings.
View original record WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020a JH/KES 18th August, 1938. W.…

scan0092 Page 2 of a letter to W. A. Robotham suggesting a meeting be deferred.
View original record JH/KES - 2 - 18th August, 1938. W. A. Robotham, Esq., (contd). they suggest a meeting at a convenient date. I would rather this be deferred for another two or three weeks as by that time I hope we…

scan0093 Status report on bearings, detailing deliveries, current orders, and enquiries.
View original record BEARINGS DELIVERED Customer: Bristol Aero., Part No.: -, No. Off.: 2 Bushes, Condition delivered: R. Machined, Date: 29.6.38. Customer: A.E.C., Part No.: U.98597, No. Off.: 2 Pair, Condition…

scan0094 Letter to Wellworthy Piston Rings Ltd discussing work in hand and a potential supply of Aluminium Tin Alloy to Crossley Motors.
View original record 1020a. Rm7/R. 19th August, 1938. J. Howlett, Esq., Messrs. Wellworthy Piston Rings Ltd., LYMINGTON. Hants: Dear Howlett, Many thanks for your letter of the 18th August. I was very interested in your…

scan0095 Letter from Wellworthy Piston Rings Ltd. regarding the positive test results of A.C.9. bearings for an aircraft engine.
View original record WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020ap JH/KES 22nd August, 1938. W.…

scan0096 Letter to G.D. Robinson about the road service performance of aluminium tin main bearings and the importance of oil filtration.
View original record 1020a. Rm4/R. 23rd August, 1938. G.D. Robinson, Esq., Chief Designer, The Associated Equipment Co.,Ltd., SOUTHALL, Middx. Dear Mr. Robinson, I am wondering how your aluminium tin main bearings are…

scan0097 Letter to J. Howlett of Wellworthy Piston Rings Ltd. regarding a Bristol fully-floating bush and a proposed visit to De Havilland's.
View original record 24th August, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS: Dear Mr. Howlett, Many thanks for your letter of August 22nd. I am most interested to hear about the Bristol…

scan0098 Letter to Wellworthy Ltd. clarifying production arrangements for centre bearings ordered by E.R.A. Ltd.
View original record 1020a EXPERIMENTAL DEPARTMENT. Rm/Twdl.14/JH. 24th August, 1938. Mr. J. Howlett, Messrs. Wellworthy Ltd., Lymington, Hants. Dear Sirs, We enclose herewith an order for centre bearings from E.R.A. Ltd.…

scan0099 Letter from Wellworthy Piston Rings regarding A.C.9 bearings, enclosing correspondence and seeking guidance on whether to abandon the job.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE WATERLOO 5761-2 12 GT. PORTLAND ST. W.1 TELEPHONE MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD. E. 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0100 Copy of a letter from Dennis Bros. to Wellworthy Piston Rings regarding a failed test of centre main bearings.
View original record Copy of letter received from Dennis Bros.Limited., Guildford, Surrey. Messrs. Wellworthy Piston Rings Limited. Lymington, Hants. 20th August,1938. Dear Sirs, Attention of Mr. Blackith. Rolls-Royce…

scan0101 Letter from Dennis Brothers Limited regarding abandoning tests on an aluminium alloy in favour of AC6 material for engine bearings.
View original record to abandon tests on the aluminium alloy until such time as you can let us have a few sets in AC6 material. We will then build up another engine and see if we can obtain results comparable with those…

scan0102 Letter to High Duty Alloys Ltd. regarding the supply and performance of engine bearings for Dennis Brothers.
View original record Rolls-Royce Ltd FB/AS. 24th August, 1938. Messrs. High Duty Alloys Limited, Buckingham Avenue, Trading Estate, Slough, Bucks. Dear Sirs, Attention of Mr. Richards. We have for some time been supplying…

scan0103 Letter from Wellworthy Piston Rings Ltd. to High Duty Alloys Ltd. regarding A.C.6. bearings.
View original record 1 Messrs. High Duty Alloys Ltd. 24.8.38. of A.C.6. bearings for trial purposes, as we have already put some in hand, but will not deliver until we hear from you. In- cidentally we are writing…

scan0104 Letter to Wellworthy Piston Rings Ltd. regarding bearing tests and development with Dennis Bros.
View original record ? copy to High Duty Alloys. 1020a - YES Rm1/R. 26th August, 1938. F. Blackith, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Mr. Blackith, Many thanks for your letter of the 24th…

scan0105 Letter from Wellworthy Piston Rings Limited regarding the manufacture of bearings and lubrication for De Havilland engines.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD . E. 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0106 Letter to Mr. Blackith of Wellworthy Piston Rings Ltd. regarding the scheduling of a visit around a holiday.
View original record 1620a Rm9/R. 27th August, 1938. F. Blackith, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Mr. Blackith, Many thanks for your letter. With regard to De Havilland's, I am going away for…

scan0107 Letter from Wellworthy Piston Rings concerning A.C.6 bearings and correspondence with Dennis Brothers and De Havilland.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE WATERLOO 5762/3 172 GT PORTLAND ST W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143 SUFFOLK…

scan0108 Letter from Wellworthy Piston Rings arranging meetings to discuss piston rings, test pieces, and High Duty Alloys.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762 3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0109 Letter to F. Blackith of Wellworthy Piston Rings Ltd concerning a meeting with De Havilland.
View original record 1080a Rm4/R. 14th September, 1938. F. Blackith, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Blackith, Many thanks for your letter re De Havilland. I am now back at the Works, and…

scan0110 Letter to Wellworthy Piston Rings discussing a meeting on bearing materials, alloy choices, and technical liaison with other companies.
View original record 1020a Rm3/R. 14th September, 1938. J.W. Howlett, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Mr. Howlett, On returning from my holiday I understand from Salt, who is now my Assistant…

scan0111 Business strategy for bearings, technical liaison, and the balance between development and research.
View original record -2- J.W. Howlett, Esq. 14.9.38. (2) Someone has got to draw the line as to firms who are worth bothering with at this stage of the proceedings, and firms who will take up a great deal of time, and…

scan0112 Page 3 of a letter to J.W. Howlett, Esq. discussing an experimental alloy, development funding, and arranging a meeting.
View original record -3- J.W. Howlett, Esq. 14.9.38. Cont'd. (4) basis an annual sum should be allocated, if it is desired that this development should go on continuously, and if for any reason this sum is absorbed too…

scan0113 Letter from Wellworthy Piston Rings Ltd. discussing issues with porous bearings and casting policies.
View original record bearing material / 256. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 15th…

scan0114 Letter discussing bearing development issues and progress with various clients including Dennis, Bristol, and Leylands.
View original record W. Robotham Esq. 15th September, 1938. got difficulties that cannot be overcome, which is of course not the case. Now the second case is Dennis. In Dennis's case they had your people down and I think…

scan0115 Letter to W. Robotham Esq. about a new policy for casting bearings to resolve porosity issues and managing communications with H.D.A.
View original record W. Robotham Esq. 15th September, 1938. I see no reason at all why we should bother you or H.D.A. or anybody else with any conferences at all. I personally would much sooner you left it to me, let us…

scan0116 Letter to Wellworthy Piston Rings Ltd. concerning the handover of a bearing job and rig.
View original record 1020a Rm5/R. 16th September, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON. Hants. Dear Mr. Howlett, I was very glad to get your letter of the 15th September which completely clears…

scan0117 Letter to Wellworthy Piston Rings Ltd. forwarding communication and drawings from Crossley Motors Ltd.
View original record 1020a Rm/CTS2/R. 19th September, 1938. Wellworthy Piston Rings Ltd., L Y M I N G T O N. Hants: Dear Sirs, We send you herewith a communication with drawings from Crossley Motors Ltd. We also enclose a…

scan0118 Letter from Wellworthy Piston Rings regarding a proposed call upon De Havilland to discuss a bearing question.
View original record SERVICE DEPOTS LONDON 23 GREAT PORTLAND ST W.1 TELEPHONE: MUSEUM 3762 LEYTONSTONE N.E. 110 ST. MORLAND ROAD E.10. TELEPHONE: MARYLAND 2439 BIRMINGHAM 141 SUFFOLK STREET TELEPHONE: MIDLAND 0838…

scan0119 Letter from Wellworthy Piston Rings Limited regarding missing drawings from a previous correspondence.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0120 Letter from Wellworthy Piston Rings discussing a material specification issue for bearing production.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762/3 17 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 115 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0121 Letter to High Duty Alloys Ltd. regarding out-of-spec copper and magnesium content in AC.9 bearing material samples.
View original record BUY 272 Agents Copy FB/EHF. Attention of Mr. Richards. 20th September, 1938. Messrs. High Duty Alloys Ltd., Trading Estate, Slough, Bucks. Dear Mr. Richards, We thank you very much for calling at our…

scan0122 Letter from Wellworthy Piston Rings Ltd. concerning the analysis of magnesium content in a supplied material.
View original record Agents Copy A.26 10 .895% A.27 12 .905% A.28 15 .95% You will see from the above that we are within approximately .05% of your findings and your suggestion that the magnesium content should be raised…

scan0123 Letter from Wellworthy Piston Rings Ltd. enclosing correspondence concerning AC.9 bearing material.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762 112 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 7421 LEYTONSTONE E11 CROYDON RD E.15 TELEPHONE: MARYLAND 2419 BIRMINGHAM 143 SUFFOLK…

scan0124 Letter from Wellworthy Piston Rings Ltd. concerning light alloys for bearings and heat treatment of R.R. AC.9 material.
View original record BMY 272 Agents Copy Rolls Royce PB/EHF.07809 19th September, 1938. Dict. 17.9.38. R. C. Gale, Esq., Military College of Science, Woolwich, S.E.18. Dear Sir, We thank you for your letter of the 15th…

scan0125 Letter from Wellworthy Piston Rings Ltd. regarding a change in the supply material for bearings for a new Diesel Engine.
View original record RMY 272 Agents Copy Rolls Royce FB/EHP.00546 19th September,1938. Messrs. Dennis Bros, Ltd., Guildford, Surrey. Dear Sirs, We regret that there has been some hold up in getting down to the final…

scan0126 Letter from Wellworthy Piston Rings Ltd. to Dennis Bros, Ltd. regarding the supply of bearings in AC.9 material.
View original record BUY 272 Agents Copy Rolls Royce FB/EHF.08612 JE/CS. 21st September, 1938. Messrs. Dennis Bros, Ltd., Guildford, Surrey. Dear Sirs, Attention of J.Milne, Esq. We thank you for your letter of the 20th…

scan0127 Letter from Wellworthy Piston Rings Ltd. regarding a production problem with scrapped castings due to incorrect metal analysis.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 21st September, 1938.…

scan0128 Letter to Wellworthy Piston Rings Ltd. regarding a bearing job, magnesium loss, and re-melting tests.
View original record 1020a Experimental Dept. Rm/CTS.11/MH. 22nd. September 1938. Messrs. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr.Blackith. Dear Sirs, In reply to your letter to Mr.Robotham…

scan0129 Letter clarifying a recommendation for correcting low copper content in A.C.9 material, which was ultimately scrapped.
View original record -2- 22nd. September 1938. Yesterday, Sept. 21st. we had a 'phone call from Mr. Richards of H.D.A. stating that they had some A.C.9 material, the copper content of which was low, namely .35% to .45%.…

scan0130 Letter to High Duty Alloys Ltd. concerning magnesium loss in A.C.9 alloy during remelting.
View original record COPY. Experimental Dept. Rm/CTS.2/JH. 2nd. August 1938. High Duty Alloys Ltd., Buckingham Avenue, Trading Estate, Slough, BUCKS. For the attention of Mr.Richards. Dear Sirs, With reference to our…

scan0131 Letter to Wellworthy Piston Rings Ltd. concerning issues with adding magnesium to re-melted bearing alloy.
View original record 1020a Rm.2/MH. 23rd. September 1938. J.Howlett, Esq., Messrs. Wellworthy Piston Rings Ltd., Lymington, HANTS. Dear Mr.Howlett, Thank you for your letter of the 21st. September. It is most unfortunate…

scan0132 Letter to Wellworthy Piston Rings Ltd. confirming the correct amount of magnesium to add to a melt.
View original record 1020a Rm.1/MH. Messrs. Wellworthy Piston Rings Ltd., Lymington, HANTS. 23rd. September 1938. For the attention of Mr.Blackith. Dear Sirs, In reply to your letter of 20th. September, we confirm that…

scan0133 Letter to Wellworthy Piston Rings Ltd. regarding a bearing rig for testing.
View original record 1020a Rm.13/MH. 23rd. September 1938. F.Blackith, Esq., Wellworthy Piston Rings Ltd., Lymington, HANTS. Dear Blackith, With reference to your letter of 21st. September, the bearing rig mentioned in my…

scan0134 Letter from Wellworthy Piston Rings regarding a bearing test rig and a planned meeting in Derby.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0135 Letter from Wellworthy Piston Rings regarding the addition of magnesium and a copper-aluminium alloy to meet specification.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0136 Letter from Wellworthy Piston Rings Ltd. discussing magnesium loss and low copper content in castings for bearings.
View original record WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE JH/KES 26th September, 1938. For the…

scan0137 Letter from Wellworthy Piston Rings Ltd. concerning delivery failures and replacement materials.
View original record JH/KES - 2 - 26th September, 1938. Messrs. Rolls-Royce Ltd., (contd). you receive any complaints with regard to failures in delivery, we are quite satisfied to carry on doing our utmost to push the…

scan0138 Letter from Wellworthy Piston Rings Ltd. regarding a letter about bearings sent to High Duty Alloys.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020a - WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/CJR. 29th September,…

scan0139 Letter to High Duty Alloys Ltd. regarding setbacks in developing and casting bearings with new alloys.
View original record Copy. 29th September, 1938. JH/CJR. J. T. Robinson Esq., Messrs. High Duty Alloys, Ltd., Buckingham Avenue, Trading Estate, Slough. Dear Mr. Robinson, Thanks for yours of the 27th. I shall be…

scan0140 Letter discussing bearing machining, the status of the order book for various clients, and strategies for handling production delays.
View original record - 2 - for machining the bearings, and we have laid down also, from experience, a rule that we do not in future deliver any bearings that are not completely machined by us, as that enables us to make…

scan0141 Letter to Wellworthy Piston Rings Ltd. arranging a visit to Lymington to discuss a bearing job.
View original record 1020a Rm2/R. 11th October, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants. Dear Mr. Howlett, Many thanks for your letter of October 5th. I am proposing to come down to…

scan0142 Cover letter from Wellworthy Piston Rings Ltd. forwarding a copy of a letter concerning an A.C.9. bearing.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS 'WELLWORTHY' PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE [Handwritten]: 1020a. WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 14th October,…

scan0143 Letter to H.C. Hall regarding a report from Bristol on the trial of A.C.9 aluminium tin bearings.
View original record JH/KES 14th October, 1938. H. C. Hall, Esq., Messrs. Rolls-Royce Ltd., Derby. Dear Mr. Hall, A. C. 9. I have now received a report from Bristol regarding the trial two bushes which we submitted to…

scan0144 Failure of a big end bush and proposing alternative materials or manufacturing methods.
View original record JH/KES - 2 - 14th October, 1938. H. C. Hall, Esq., (contd). obtained, they are afraid it cannot be used as a suitable big end bush for their job due to the fact that there is a serious drawback due to…

scan0145 Letter from Wellworthy Piston Rings Ltd. enclosing a memorandum with reference to AO.9.
View original record 1020a. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 17th October, 1938.…

scan0146 Investigation into the magnesium content and casting process of AC.9 bearing material.
View original record COPY. re AC.9 BEARING MATERIAL Mr. Richards of High Duty Alloys arrived at the Works on Monday morning at about 11.30 a.m. with the object of looking more closely into what we are doing in connection…

scan0147 The analysis of bearings, discussing magnesium loss, material defects, and recommending a standardized hardness test.
View original record - 2 - there is any loss in magnesium, particularly in view of the fact that Mr. Richards opinion seems to be that by fluxing excessively we shall get a bigger loss in magnesium due to exidation. We…

scan0148 Pending analysis of bearings for segregation and magnesium content to achieve a desired hardness.
View original record - 3 - There is therefore at the moment very little that can be done until we get H.D.A's report on the bearings which Mr. Richards took away with him, as he will check for analysis on both edges of…

scan0149 Letter to Wellworthy Piston Rings Ltd. regarding the arrangement of a meeting in Derby.
View original record Copy for Mr. Herrington of High Duty Alloys. Mr. Wheeler (Rolls-Royce Foundry) 1020a EXPERIMENTAL DEPARTMENT. RM/CTS.19/JH. 26th. October, 1938. Wellworthy Piston Rings Ltd., Lymington, Hants. For the…

scan0150 Letter from Wellworthy Piston Rings concerning bearing material specifications and a proposed meeting.
View original record 1022a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD, E. 15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0151 Letter from Wellworthy Piston Rings Ltd. concerning a seized half bearing and experiments with Albions.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0152 Continuation letter from Wellworthy Piston Rings Ltd. regarding an engine seizure due to bearing failure.
View original record WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1. you was that the enormous pressure which seems to have taken place around the dowel hole does seem to have been the cause of throwing the metal up…

scan0153 Letter from Wellworthy Piston Rings regarding Aluminium-tin AC.9 bearings and future order summaries.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD, E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0154 Letter to Wellworthy Piston Rings Ltd. regarding manufacturing troubles with AC.9, a proposed meeting, and trial bearings.
View original record 1020a Experimental Dept. Rm/CTS.4/MH. Your Ref. FB/EHF.15509. 1st. November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. (Also Mr. Herrington). Dear Sirs,…

scan0155 Letter to Wellworthy Piston Rings Ltd. regarding a more efficient method of information exchange.
View original record Wellworthy Piston Rings Ltd. -2- 1st. November 1938. Our opinion is, that instead of trying to cover this question in booklet form, it would be preferable to have some individual sufficiently primed…

scan0156 Letter to Wellworthy Piston Rings Ltd. concerning bearing lubrication and oil hole configuration in response to an enquiry from Messrs. Lister & Co.
View original record 1020a (Experimental Dept.) Rm/CTS2/R. 3rd November, 1938. Wellworthy Piston Rings Ltd., LYMINGTON, Hants: For the attention of Mr. Blackith. Your Ref: FB/EHF. Dear Sirs, With reference to your letter…

scan0157 Letter from a piston ring specialist regarding enquiries for big end bushes, trial bearings and proposed site visits.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD. E.15 TELEPHONE: MARYLAND 2414 BIRMINGHAM 143…

scan0158 Concluding page of a letter from Wellworthy Piston Rings Ltd.
View original record WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1. to be straight forward. Assuring you of our best attention and service at all times, We are, dear Sirs, Yours faithfully, For WELLWORTHY PISTON…

scan0159 Letter to High Duty Alloys Ltd. arranging a works visit to investigate AC.9 material.
View original record BUY 272 Agents Copy FB/EHF. 4th November, 1938. Attention of Mr. Herrington. Messrs. High Duty Alloys Ltd., Buckingham Avenue, Trading Estate, Slough, Bucks. Dear Mr. Herrington, I believe Mr. Howlett…

scan0160 Letter to a supplier regarding bearing material with high magnesium content and potential solutions.
View original record 1020 Experimental Dept. Rm/CTS./MH. 4th. November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Walden. Dear Sirs, Further to our telephone conversation of Nov. 3rd.…

scan0161 Page two of a letter addressed to Wellworthy Piston Rings Ltd.
View original record Wellworthy Piston Rings Ltd. -2- 4th. November 1938. A supply of material from us however, as suggested might be useful until the problem has been properly settled at Derby. Yours faithfully, for…

scan0162 Letter from Wellworthy Piston Rings Ltd. concerning an upcoming meeting about AC.9 bearings.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 7th November, 1938. W.…

scan0163 Letter to Wellworthy Piston Rings Ltd. regarding the confirmation of a visit.
View original record 1020a Experimental Dept. Rm/CTS.3/MH. 8th, November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, Many thanks for your letter dated Nov. 4th. We…

scan0164 Letter from Wellworthy Piston Rings Ltd. regarding mixing surplus material to correct the Magnesium and Copper content of a batch.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0165 Letter to Wellworthy Piston Rings Ltd. regarding oil pressure, a carbon steel shaft, and main bearing specifications for a Ruston & Hornsby engine.
View original record 1020a Experimental Dept. Rm/CTS.16/MH. 11th. November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. Your Ref. M/WM/S/FN.B. For the attention of Mr. Blackith. Dear Sirs, With reference to your…

scan0166 Requesting suggestions to answer queries from a meeting with Wellworthy and High Duty Alloys.
View original record 1020a (Wellworthy) To H1. (Lab.) from Rm/CTS. c. Mr. Wheeler (Alum Foundry). Rm/CTS.2/MH.12.11.38. MEETING WITH REPRESENTATIVES FROM WELLWORTHY AND HIGH DUTY ALLOYS. The above people left behind a…

scan0167 Requesting suggestions for recommendations regarding the manufacturing procedure of AC.9 alloy, following a meeting with Wellworthy and High Duty Alloys.
View original record 1020a (Wellworthy) To Mr. Wheeler (Alum Foundry). c.c. HlG (Lab.) Rm/CTS.3/MH.12.11.38. MEETING WITH REPRESENTATIVES FROM WELLWORTHY AND HIGH DUTY ALLOYS. It is essential that we put down on paper our…

scan0168 Letter from Wellworthy Piston Rings regarding a bearing job, heat-treatment, and hardness checking.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0169 Letter regarding AC.9 bearings for Ruston & Hornsby, detailing a testing and heat treatment plan with High Duty Alloys.
View original record RWT 272 Agents Copy FB/EHP.18762 RM/CTS.16/MH. 14th November, 1938. Dict. 15.11.38. Messrs. Rolls Royce Ltd., Derby. Dear Sirs, Attention of C. T. Salt, Esq. We thank you for your letter of the 11th…

scan0170 Letter from Wellworthy Piston Rings Ltd. regarding Brinell hardness testing specifications.
View original record EXTRACT AERO COPY 1. results, that is whether it should be by Brinell or any other machine, and whether it should be by 5 mm. diameter ball or 10 mm. Yours faithfully, For WELLWORTHY PISTON RINGS…

scan0171 The heat-treatment and hardness testing procedures for castings.
View original record Rm/CTS. H1.1/SK.15.11.38. Research Laboratory. 1020a. Re : Rm/CTS.2/MH.12.11.38. ------------------------ 7. Heat-treatment should be done in the rough. (so that Brinell hardness tests can be obtained…

scan0172 Chemical analysis procedure for determining the composition of a bearing alloy.
View original record 1020a~ 5. ANALYSIS OF BEARING ALLOY. Determination of Tin. Dissolve 1 gm. of drillings in 100 cc. of 80% hydrochloric acid, in an atmosphere of carbon dioxide. Ensure that soln. of aluminium and tin…

scan0173 Letter from Wellworthy Piston Rings regarding a meeting report and querying the melting temperature of aluminium.
View original record 11 C.T.S - Contradict where necessary in your summary WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD.…

scan0174 Page two of a letter to W. R. Robotham concerning a meeting and production orders.
View original record JH/KES - 2 - 16th November, 1938. W. R. Robotham, Esq., (contd). say everybody seems to have come back very much better for the meeting and all seem to realise what the points are that want clearing…

scan0175 Report of a visit to discuss the Brinell hardness specification of AC.9 bearings.
View original record BUY 271 Date 9.11.36. Report of visit to Rolls Royce Ltd., Representative: F. Blackith, J. Watkinson, W. Plummer Handwritten note top right: Mr. Robotham Persons Interviewed Name: Mr. Robotham, Mr.…

scan0176 Discussions and actions on material hardness testing and heat treatment for bearings and bushes.
View original record -2- 5 mm. ball at 125 kg. load, as in his opinion this gave rise to error, but I interposed a remark here which rather set this aside, as I pointed out that we were checking with a very small ball on…

scan0177 Meeting discussing the analysis and hardness of AC.9 material and a communication breakdown regarding foundry procedures.
View original record -3- again compare notes and hold a meeting on Tuesday the 22nd November at H.D.A., which should, once and for all, settle the questions appertaining to analysis and hardness of AC.9 material. Mr.…

scan0178 Report discussing deviations from material specifications, specifically magnesium content and hardness, in the production of bearings and bushes.
View original record -4- PART AGREE which are too hard, and they would reject them if they were above hardness figure, but if they were low they would not worry about them. Therefore, they are not keeping strictly to…

scan0179 Foundry practices, investigation of bushes, and the machining process for bearings.
View original record -5- with Foundry practice, which is affecting anything we are doing, and the position now is to proceed as fast as possible with the investigation of the bushes we have brought back, both as regards…

scan0180 Outlining issues with bearings and dowel pins, and listing discussion points for AC.9 manufacture.
View original record -6- that we advise the use of shims to locate the bushes, rather than dowel pins, as in the case of Albions pressure of the bearing against the dowel pin had caused local thickening of the bearing,…

scan0181 Letter from Wellworthy Piston Rings regarding the despatch of twelve bearings for hardness testing.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2413 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0182 Letter to Wellworthy Piston Rings Ltd. regarding the despatch of AC.9 material and a misunderstanding about filtration.
View original record 1020a Experimental Dept. Rm/CTS.7/MH. 17th. November 1938. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, We thank you for your letter concerning the…

scan0183 Letter to Wellworthy Piston Rings Limited correcting misinformation regarding bearing materials and their properties.
View original record 1020a Rm5/R. 18th November, 1938. F. Blackith, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Mr. Blackith, With reference to the copy letter which you forwarded to us, we are not quite…

scan0184 Comparison of the properties and advantages of R.R. bearing alloy against other materials like babbitt and lead bronze.
View original record R.R. BEARING ALLOY. The big advantage of this material over babbit is that it does not suffer from fatigue, which is the main disability of the latter material. It is impossible to give precise…

scan0185 Meeting with suppliers High Duty Alloys and Wellworthys regarding bearing production and circulated misinformation.
View original record 1020a Hs. from Rm. Rm4/R.18.11.38. We had a meeting with High Duty Alloys and Wellworthys last week. This meeting was long overdue, but we could not get them together before. I think matters are now…

scan0186 Letter from Wellworthy Piston Rings clarifying a previous communication regarding material properties and filtration.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD, E.15 TELEPHONE: MARYLAND 2419 BIRMINGHAM 143…

scan0187 Letter from Wellworthy Piston Rings Ltd. to Fiat Motors clarifying the performance of AC.9 bearings and the necessity of efficient oil filters.
View original record Messrs Rolls Royce FB/EHF. 18th November, 1938. Messrs. FIAT MOTORS (England) Ltd., Water Road, Wembley, Middlesex. Dear Sirs, Attention of Mr. Ife. It has occurred to us that one paragraph of our…

scan0188 Meeting minutes regarding manufacturing difficulties and heat treatment procedures for R.R.59 Alloy bearings.
View original record 1020a (Wellworthy) To. Messrs. Wellworthy Ltd., To High Duty Alloys Ltd., c. to Ms. RM/DTT.3/JM.21.11.38. Meeting with Representatives from Messrs. High Duty Alloys - Slough. Messrs. Wellworthy Ltd.,…

scan0189 The challenges of producing A.C.9 alloy with external firms for use in bearings.
View original record RM/CTS.3/JE.21.11.38. A.C.9. Alloy. With reference to the supplying of outside firms with A.C.9 bearings. Over the past few months, we have been co-operating with Wellworthy of Lymington, and High…

scan0190 List of questions compiled following a meeting to discuss difficulties in bearing production.
View original record -2- RM/CTS.3/JH.21.11.38. Accordingly, two representatives from each firm came to Derby on November 10th. and had a conference with Wheeler and Hl. After sorting out the practical details of their…

scan0191 Specifications, mixing instructions, and hardness details for an alloy.
View original record -3- hm/CTW.3/JH..1.11.38. The following are our answers to these questions - 1. Specification. Tin 5.5 - 7. Cu .6 - .9 Ni 1.4 - 1.7 Ti 0.25 - 0.4 Mg. 0.7 - 1.0 Iron. Max. 0.3 Sn. Max. 0.10 Mixing for…

scan0192 Chemical analysis methods for determining the composition of alloys.
View original record -4- 3. Yes, with A.C.9 the amount is important. Many castings have been examined with favourable report. It was suggested that the first and last ingot cast from each melt by N.S.A. should be…

scan0193 Chemical analysis procedures for determining the presence of Magnesium, Nickel, and Copper in an alloy.
View original record -3- RM/CTC.3/JE. 1.11.38. Determination of Magnesium. Dissolve 2 gms. of alloy in 10% caustic soda. Dilute, allow to settle and filter. Dissolve residue in nitric acid, evaporate with sulphuric (10…

scan0194 The procedure for producing, heat-treating, and cleaning a 200 lbs melt.
View original record (6) The normal practice is to produce a melt of 200 lbs, which is produced in a Morgan bale-out furnace with a Morgan Crucible. The melt is produced and consumed in approximately three hours. (7)…

scan0195 The casting properties of an experimental melt of A.C.9 bearing material.
View original record (COPY) Rm/CTY.3/JH.dl.1.11.38. A.C.9 Bearing Material - Time 11.00. An experimental melt of approximately 200 lbs. of this material was made in the Die Foundry on the 8th. The method of manufacture is…

scan0196 Record of various casting experiments detailing components, temperatures, and outcomes.
View original record COPY. -2- (c) Ring Bearing as above but tilted - 1 - Cast at 685° 2 - " 685° 3 - " 685° 4 ) 5 ) - Cast at 685° 6 ) 7. Cast at 660° as an experiment to determine the absolute minimum casting…

scan0197 Record of metal casting experiments with different die types and temperatures.
View original record COPY. -3- Rm/CFM.3/JH.1.11.38. (i) Cont'd. 4 - Cast at 680° 5 - " 665° 6 - " 660° All castings made from this die are cracked. Modifications can be made to the die to suit the characteristics of the…

scan0198 General inference from a material casting test for manufacturing bearings.
View original record COPY. -4- RM/CTS.3/JH.21.11.38. test bars were cast 700°. General Inference. This material is fluid and its solid contraction is fairly high. It has made apparently sound castings from all our…

scan0199 The laboratory to analyse, heat treat, and test twelve 'as cast' A.C.9. bearings from Wellworthy.
View original record 1020a To Hl. (Laboratory) Rm/CTS.11/JH.22.11.38. A.C.9. BEARINGS. In accordance with arrangements made at the meeting with Wellworthy and H.D.A. We are handing to you twelve (as cast) bearings…

scan0200 Letter from the Experimental Department to André Citroen, referring their query to Wellworthy Piston Rings Ltd.
View original record 1020a EXPERIMENTAL DEPARTMENT. Rm/CTR.10/JH. 22nd. November, 1938. Messrs. André Citroen. 11/A 16/ Quai De Javel, PARIS (XVE). For the attention of Mr. Saniturat. Dear Sirs, We are in receipt of your…

scan0201 Letter to Wellworthy Piston Rings Ltd. forwarding communication from Citroen regarding engine components and oil filtration.
View original record 1020a EXPERIMENTAL DEPARTMENT. Rm/CTS.24/JH. 22nd. November, 1938. Messrs. Wellworthy Piston Rings Ltd., Lymington, Hants. For the attention of Mr. Blackitn. Dear Sirs, We are enclosing herewith a…

scan0202 Letter from a piston ring specialist discussing aero engine bearing tests, materials and previous correspondence.
View original record SERVICE DEPOTS LONDON 28 BLACKFRIARS RD S E 1 TELEPHONE: WATERLOO 5762-3 17 GT PORTLAND ST W 1 TELEPHONE: MUSEUM 2433 LEYTONSTONE E 11 520 HIGH RD LEYTONSTONE E 11 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0203 Continuation page of a letter regarding the main features of AC.9 material.
View original record S J H WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1. which we have put this matter over, we will be very careful in future to more or less embody the points which you have set out as being the…

scan0204 Letter from Wellworthy Piston Rings regarding a communication received from Citroen of Paris.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1. TELEPHONE: WATERLOO 4281 172 GT PORTLAND ST W.1 TELEPHONE: MUSEUM 3438 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143 SUFFOLK…

scan0205 Letter to Wellworthy Piston Rings Ltd. regarding a meeting summary and bearings received for laboratory testing.
View original record 1020a. Rm3/R. 24th November, 1938. Wellworthy Piston Rings Ltd., LYMINGTON, Hants: (For the attention of J. Howlett, Esq.) Dear Sirs, We attach a summary of the information asked for at the meeting at…

scan0206 Letter from Wellworthy Piston Rings proposing a new trademark for AC.9 Bearing material.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0207 Letter from Wellworthy Piston Rings Ltd. to W. A. Robotham concerning pistons and connecting rod bearings for a Liberty type engine.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762 3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2434 119 LEYTONSTONE RD STRATFORD E.15. TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0208 Letter from Wellworthy Piston Rings regarding the application of parts for tank engines and bearings for Nuffield Mechanizations.
View original record WELLWORTHY PISTON RINGS LIMITED CONTINUATION No. 1. There certainly seems to be a big field for application of this job on these tank engines, a large number of which are, of course, now being put in…

scan0209 Letter discussing forked big-end bearings, low silicon issues causing low brinell hardness, and proposing a new trade name 'Rollium' for the alloy.
View original record 1020a Rm5/R. 2nd December, 1938. F. Blackith, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Mr. Blackith, Many thanks for your letter of December 1st. In view of what you say about the…

scan0210 Letter concerning an alloy name, a meeting with DeHavillands, and a big-end bush.
View original record F. Blackith, Esq. -2- 2.12.38. not like this name, perhaps you might get him to suggest something to which he and High Duty Alloys agree, and I do not think we shall object to anything within reason.…

scan0211 Letter from Wellworthy Piston Rings Ltd. regarding advertising for the AC.9 job.
View original record WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE JH/PW/CJR. 6th December, 1938. W. A.…

scan0212 A.C. Alloy Bearings, detailing the properties required for improved engine performance.
View original record A.C.ALLOY BEARINGS. --------- Mr Walden to & read Greater engine speeds and higher pressures and temperatures have forced the engine builder to look for an improved material to carry the increased…

scan0213 Bearing material properties including embeddability, wear, and corrosion resistance.
View original record 2. combination of anti-score quality and mechanical strength. During wear or displacement, there must be neither ex-cessive heat generated nor seizure to the shaft. Whilst every effort should be made…

scan0214 Bearing materials, focusing on the properties and applications of White metals and Babbitt.
View original record 3 the endeavour to produce an alloy having a higher fatigue life than Babbitt. Cadmium and Lead, and certain of their alloys are subject to this deterioration. The corrosiveness of the lubricant is…

scan0215 Comparison of the properties and composition of tin-base and lead-bronze bearing materials.
View original record 4. without causing serious damage to the journal and without affecting the bearing surface to any great extent, also considerable dirt can be embedded in the surface without undue scoring of the steel…

scan0216 Comparison of the properties and performance of Copper-lead and Babbitt bearings.
View original record 5. In comparison with the Babbitts, Copper-lead should give perhaps four or five times the life under quite moderate conditions. Where very high loads must be sustained especially at high temperatures…

scan0217 Comparison of bearing materials like Lead Bronze, white metals, and the Aluminium Tin range of alloys.
View original record 6. load capacity of Lead Bronze. Whilst high rubbing speeds and deflections encountered in some automobile engines are likely to induce scoring. We now realize that, although white metals are lowest…

scan0218 The composition and properties of the AC.9 bearing material alloy.
View original record 7 These have been extensively tested both for car and aero-engine work and have been found to be even better than the best lead bronze, being much easier to produce and having the added advantage for…

scan0219 The development, material composition, and comparative testing of light alloy engine bearings.
View original record 8 hard constituents of widely differing hardness values forming a mosaic pattern which will not be torn out during machining nor yet pierce the oil film under conditions of poor lubrication. It was…

scan0220 Report page detailing the testing procedures and results for various bearing alloys.
View original record 9. trolled proportions of tin, antimony, nickel, manganese and silicon. All three bearings were "run-in" for two hours at 1,000 1,300 and 1,700 r.p.m. at 80°C ± 5, the speed then being reduced to…

scan0221 Bearing seizure tests comparing Hiduminium RR.56 and Aluminium Tin alloys, and the subsequent acquisition of manufacturing rights.
View original record 10. the oil supply to the bearings was to be gradually reduced until seizure of a bearing occurred. It was found that the oil pressure had to be reduced to zero before one of the big-end bearings…

scan0222 Comparison of the performance of lead-bronze against aluminium-tin.
View original record 11. against lead-bronze, as being the only other material which approaches the aluminium-tin in performance.

scan0223 Cover letter from Wellworthy Piston Rings Limited regarding a summary of bearing events and outstanding orders.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD. S.E.1 TELEPHONE WATERLOO 6762-3 172 GT. PORTLAND ST. W.1 TELEPHONE MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE MARYLAND 2449 BIRMINGHAM 143…

scan0224 Summary of bearing orders, dispatches, and enquiries for the month of November.
View original record Summary for November of Bearing Orders and Progress. Order List. Bristol 52 small bushes. Birmingham & Midland Omnibus Company 78 pairs. Citroen 12 pairs big ends F.O.C. De Havilland 8 pairs. Trial…

scan0225 Cover letter from Wellworthy Piston Rings Ltd. regarding a summary of bearing progress for December 1938.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 6762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0226 Summary of bearing orders and despatches for various customers for the month of December.
View original record R.R. Summary for December of Bearing Orders and Progress. Order List. Bristol 52 Small Bushes " 3 Big Ends. B'ham & Midland Omnibus Co. 78 Pairs A.E.C. 186 Halves Dennis 21 pairs E.R.A. 8 bushes…

scan0227 Letter to Wellworthy Piston Rings Ltd. discussing the weaknesses of white metal bearings at high temperatures compared to A.C.9 alloy.
View original record 1020a. Rml/R. 8th December, 1938. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, With reference to your 'Write-up' on aluminium tin bearings, there is one point which…

scan0228 Letter from Wellworthy Piston Rings regarding forked type and AC.9 bearings for tank engines.
View original record 1020a SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST W.1 TELEPHONE: MUSEUM 2433 110 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0229 Letter to F. Blackith of Wellworthy Piston Rings Ltd. regarding a misunderstanding about bearings.
View original record 1020a. Rml/R. 12th January, 1939. F. Blackith, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants. Dear Blackith, Luyks came down here and we showed him all we knew about bearings. On receipt of…

scan0230 Letter from Wellworthy Piston Rings Limited regarding a visit to Nuffield Mechanization.
View original record 102Ca SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD, E.15 TELEPHONE: MARYLAND 2419 BIRMINGHAM 143…

scan0231 Letter to J. Howlett of Wellworthy Piston Rings Ltd. regarding information for 'The Motor' magazine about a bearing alloy.
View original record 1020a Rm4/R. 19th January, 1939. J. Howlett, Esq., Messrs. Wellworthy Piston Rings Ltd., Lymington, HANTS. Dear Howlett, Herewith is the stuff we are proposing to give to "The Motor" correspondent,…

scan0232 Letter from Wellworthy Piston Rings Ltd. confirming the dispatch of sample bearings and a display card.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS PW/KES 21st January, 1939. W.…

scan0233 Letter from Wellworthy Piston Rings Ltd. regarding the manufacturing license and trials of A.C.9. bearings.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020a WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 23rd January, 1939. W.…

scan0234 Letter to W. R. Robotham with an invitation to a cock shooting event.
View original record JH/KES - 2 - 23rd January, 1939. W. R. Robotham, Esq., (contd) whether you would care to come down at the end of this week. We are going to have a good day's cock shooting. It will, of course, be the…

scan0235 Draft document detailing the evolution of bearing alloy in response to increasing engine power output over 15 years.
View original record DRAFT. ① THE EVOLUTION OF THE ROLLS-ROYCE BEARING ALLOY. Each year an endeavour is made to increase the output which can be obtained from a given size of passenger car power engine. The…

scan0236 Bearing fatigue issues in the 4¼-litre Bentley engine and the testing of alternative alloys.
View original record ② or induction system, and it was not until the original con- sumption was reproduced by driving on the hand brake only that it was realised that the engine was being made to work harder due to the…

scan0237 The development and successful testing of the R.R. aluminium tin bearing alloy, including its performance in racing.
View original record ③ As a result of these tests it was decided to embark upon the development of the R.R. aluminium tin bearing alloy. After many hundreds of hours Test Bed work, a satisfactory material was evolved, and…

scan0238 The characteristics and advantages of a bearing used without steel backing.
View original record ④ The R.R. bearing is used without steel backing. It has given satisfactory results in thicknesses varying from .125 to .062 thick. The latter thickness is, of course, comparable with the thin shell…

scan0239 The successful application of a new alloy in E.R.A. racing cars and Merlin aero engines, and the company's investment in light alloy research.
View original record (5) E.R.A's were one of the first Companies to appreciate the potentialities of the new alloy and have been using it on their racing cars since 1937. The bearings which they put in engines in 1937 ran…

scan0240 Short typed message to Howlett Wellworthy Lymington regarding bearings and a meeting.
View original record 1020a Rm/R. 24.1.39. HOWLETT WELLWORTHY LYMINGTON. MANY THANKS FOR BEARINGS STOP MUCH REGRET CANNOT MANAGE SATURDAY. ROBOTHAM.

scan0241 Letter to J. Howlett of Wellworthy Piston Rings Ltd. regarding the arrival of bearings and a note for the press.
View original record 1020a Rm8/R. 24th January, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, The bearings have arrived safely. Your comments on the note for the Press were very…

scan0242 Requesting the despatch of a notice and bearings to Messrs. Wellworthy Ltd.
View original record 1020a To D/BP. Rm.3/JH.26.1.39. Will you please despatch to Messrs. Wellworthy Ltd., the attached notice and bearings. Rm.

scan0243 Letter to Wellworthy Piston Rings Ltd. following up on AC.9 bearings and asking about cylinder borewear measurement.
View original record 1020a Experimental Dept. Rm/CTS.3/MH. 27th. January, 1939. Wellworthy Piston Rings Ltd., Lymington, HANTS. For the attention of Mr. Blackith. Dear Sirs, We had an enquiry in October of last year from…

scan0244 Letter from Wellworthy Piston Rings Ltd. regarding a brochure and advertisement for AC.9 bearings.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 1020a C.T.S. .JH/PW/CJR. 8th…

scan0245 Letter from Wellworthy Piston Rings Ltd. arranging a visit to discuss bearing casting techniques.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020a WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 10th February, 1939. JH/CJR.…

scan0246 Letter to Wellworthy Piston Rings Ltd. about a newly developed piston and a provisional patent.
View original record 1020a Rm4/R. 10th February, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, With reference to your letter of the 7th February regarding bearing particulars, as…

scan0247 Letter to J. Howlett of Wellworthy Piston Rings Ltd. concerning publicity materials, the properties of aluminium tin bearings, and a potential works visit.
View original record 1020a Rml/R. 11th February, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants. Dear Howlett, I have checked up on your publicity matter, and have corrected one or two minor errors…

scan0248 Letter from Wellworthy Piston Rings Ltd. arranging a works visit to observe the casting of AC.9 Bearings.
View original record 1020a WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS .JH/PW/CJR. 13th February,…

scan0249 Letter from Wellworthy Piston Rings Ltd. discussing the manufacture of a piston head, experiences with Diesel pistons, and a query about aluminium bearing material.
View original record Peleine 1020a. WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE JH/CJR. 15th…

scan0250 Letter from Wellworthy Piston Rings Ltd. discussing progress on AC Bearing production and detailing deliveries.
View original record Handwritten: Filing Handwritten: 1020a. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON…

scan0251 Letter to J. Howlett of Wellworthy Piston Rings, Ltd., arranging a date to observe casting bearings.
View original record 1020a Rm6/R. 20th February, 1939. J. Howlett, Esq., Wellworthy Piston Rings, Ltd., Lymington. Hants. My dear Howlett, Further to your enquiry in your letter of the 13th February regarding the date…

scan0252 To Mr. Wheeler of the Alum Foundry confirming a demonstration of A.C.9 alloy casting.
View original record 1020a Mr. Wheeler (Alum Foundry. Rm/CTS.22/JH.21.2.39. This is to confirm that we have notified Messrs. Wellworthy that we can demonstrate A.C.9 alloy being cast, on Tuesday 28th. Feb. They will…

scan0253 Letter from Wellworthy Piston Rings confirming arrangements for a visit to discuss AC.9 bearings.
View original record SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 5762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD. STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM 143…

scan0254 Cover note for an attached summary regarding the position of AC 9 Bearings cast by Messrs. Wellworthy Ltd.
View original record 1020a By. c. Rm. c. Ml. c. RHC. RHC/JWW.2/JRE.3/3_39. Please find attached hereto a summary of the position with regard to the AC 9 Bearings cast by Messrs. Wellworthy Ltd. JWW.

scan0255 Casting and hardness issues of AC 9 bearings supplied by Wellworthy Ltd.
View original record By. C.Hs.RM. C.Hl. C.RHC. RHC/JWW.1/JRE.6/3/39. Re AC 9 Bearings cast by Messrs Wellworthy Ltd. We have been in communication with Messrs. Wellworthy Ltd. several times recently in connection with the…

scan0256 Analysis of alloy hardness in bearings, focusing on silicon content, Brinell values, and casting methods.
View original record similar heat treatment of our alloy gives a Brinell of 55 to 80. The Silicon content required in these bearings, which is actually extant as an impurity in the aluminium ingot, is unusually low at…

scan0257 The casting process for half bearings, discussing issues with hardness, cooling, and proposing alternative die designs.
View original record The inside of the half bearing is cast against a mandrel that is fixed in position and therefore at the same temperature as the rest of the die. The difference in hardness between the inside and the…

scan0258 Four sketches showing component cross-sections with Brinell hardness measurements and a potential casting/molding process.
View original record SKETCH I 47 BRINELL 45 BRINELL 41 BRINELL 41 BRINELL 43 BRINELL SKETCH III HOT HOT CHILLED SKETCH II SKETCH IV A B

scan0259 Letter to Wellworthy Piston Rings Ltd. regarding an amended provisional specification and a report on bearing material.
View original record 1020a Rm17/R. 16th March, 1939. PRIVATE & CONFIDENTIAL. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, With reference to your letter of the 13th March, we are just…

scan0260 Letter from Wellworthy Piston Rings regarding a letter from Chrysler Corporation concerning AC.9 bearings.
View original record 1020a. SERVICE DEPOTS LONDON 89 BLACKFRIARS RD S.E.1 TELEPHONE: WATERLOO 0762-3 172 GT. PORTLAND ST. W.1 TELEPHONE: MUSEUM 2433 119 LEYTONSTONE RD STRATFORD E.15 TELEPHONE: MARYLAND 2439 BIRMINGHAM…

scan0261 Letter from Wellworthy Piston Rings discussing communication with Chrysler Corporation about an A.C. 9 Bearing.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE 1020a WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 25th April, 1939. W. A.…

scan0262 Letter to Wellworthy Piston Rings Ltd regarding a piston patent and A.C.9 bearing material data.
View original record 1020a Rm7/R. 26th April, 1939. J. Howlett, Esq., Wellworthy Piston Rings Limited, LYMINGTON, Hants: Dear Howlett, Thank you for your letter of April 25th re- garding the piston. If Blackith can manage…

scan0263 Requesting answers to questions from the Chrysler Corporation to be given to Howlett for his trip to America.
View original record 1020a Rm/CTS. from Rm. Rm8/R.26.4.39. Will you please let me have an answer to the attached questions from the Chrysler Corporation, and any further information which you think will be useful. We…

scan0264 Copy of a letter from Chrysler Corporation to Wellworthy Piston Rings Ltd. requesting information on AC.9 bearing metal.
View original record COPY! From the Chrysler Corporation, Detroit, Michigan, U.S.A. Wellworthy Piston Rings Ltd., Lymington, Hants, England. April 6, 1939. Gentlemen: Having noted a recent publication concerning your…

scan0265 Letter to Chrysler Corporation regarding the AC.9 bearing metal and its manufacturing rights for America.
View original record FOLLOW UP BUY 274 Date | Remarks | How Dealt with --- | --- | --- | JH/KES. | 21st April, 1939. Edward T. Johnson, Esq., Engineering Division, Chrysler Corporation, Detroit, Michigan. Dear Sir, Rolls…

scan0266 Letter to Wellworthy Piston Rings providing particulars on the A.C.9 alloy.
View original record 1020a Rm17/R. 28th April, 1939. J. Howlett, Esq., Messrs. Wellworthy Piston Rings, LYMINGTON, Hants: Dear Howlett, Herewith some particulars on the A.C.9 alloy. Please say if you want any more. Yours…

scan0267 To Wellworthy Piston Rings Ltd. answering technical queries from Chrysler Corp. on aluminium tin bearings.
View original record To: Wellworthy Piston Rings Ltd. Rm/CTS.1/JH.29.4.39. Aluminium tin bearings. With reference to the information required by Chrysler Corp. of U.S.A. Their queries can be tabulated as follows :- (1)…

scan0268 To Wellworthy Piston Rings Ltd. regarding main bearing clearances, scoring, and engine running-in procedures.
View original record -2- To Wellworthy Piston Rings Ltd. Rm/CTS.1/JH.29.4.39. (7) Clearances (Cont'd). (b) Main Bearings. Minimum .0012/inch diameter. Maximum .00155/inch diameter. Preferred .00135/inch diameter. It…

scan0269 Private and confidential letter from Wellworthy Piston Rings Ltd. regarding piston ring performance and business with Vauxhall and Perkins.
View original record 1020a? WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS JH/KES 10th May, 1939.…

scan0270 Page 2 of a letter to W. A. Robotham regarding confidential information and a mention of Vauxhall.
View original record JH/KES - 2 - 10th May, 1939. W. A. Robotham, Esq., (contd). All this is naturally for your own information so you can keep it under your own bonnet, because we believe that given the co-operation and…

scan0271 Letter to Wellworthy Piston Rings Ltd discussing a compromise on bearing alloys and crankshaft hardness.
View original record 1020a. Rm5/R. 13th May, 1939. J. Howlett, Esq., Wellworthy Piston Rings Ltd., LYMINGTON, Hants: Dear Howlett, Thank you for your letters. Taub and Constantine visited us yesterday. We went very…

scan0272 Letter summarising recommendations for modifications related to the 'Vauxhall Job'.
View original record J. Howlett, Esq. -2- 13.5.39. Summarising our recommendations, therefore, as to how you should go into the Vauxhall Job, if you tackle it at all - (1) Taub should re-design the shaft to get more main…

scan0273 Confidential letter from Wellworthy Piston Rings Ltd. discussing personnel (Taub) and project strategy.
View original record WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS 102oa? 15th May, 1939. JH/CJR. W. A.…

scan0274 Letter to Miss Scott of Wellworthy Piston Rings Ltd. regarding a search for missing correspondence.
View original record 1020a Rm/R. 17th May, 1939. Miss K.E. Scott, Personal Secretary to Mr. Howlett, Wellworthy Piston Rings Ltd., LYMINGTON, Hants. Dear Miss Scott, Mr. Robotham has asked me to advise you that we have…

scan0275 Letter from Wellworthy Piston Rings Ltd. regarding misplaced correspondence about the AC.9 Bearing.
View original record W.A. 1020a. WORKS TELEPHONE LYMINGTON 520 WORKS TELEGRAMS "WELLWORTHY" PRIVATE TELEPHONE LYMINGTON 232 MANAGING DIRECTOR'S OFFICE WELLWORTHY PISTON RINGS LTD., LYMINGTON HANTS KES 12th May, 1939. W.…

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