From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Letter from Armstrong's Patents Co. Ltd. concerning hand-controlled shock absorbers and a split crank.
| Identifier | ExFiles\Box 152\1\ scan0264 | |
| Date | 19th March 1937 | |
| 1292 PATENTEES AND MANUFACTURERS OF THE "ARMSTRONG" SHOCK ABSORBER, ETC. ETC. The ARMSTRONG'S PATENTS Co. Ltd. DIRECTORS MAJOR MACINDOE. M.{Mr Moon / Mr Moore} C. CHAIRMAN GEO: R.{Sir Henry Royce} JOHNSTONE, MANAGING DIRECTOR GORDON ARMSTRONG, A.M.I.A.E., F.{Mr Friese} INST. PAT. R.{Sir Henry Royce} R.{Sir Henry Royce} LEGGOTT EASTGATE BEVERLEY YORKS. TELE { PHONES: BEVERLEY 410 AND 411, GRAMS: ARMSTRONG PATENTS ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY AND NOT TO INDIVIDUALS OUR REF. FB/VS{J. Vickers}/4 YOUR REF. RmLesll/R DATE 19th. March 1937 Messrs. Rolls, Royce, Ltd. DERBY. For the attention of Mr. Leslie. Dear Sirs, We thank you for your letter of the 18th. inst. and you will no doubt have now received the new hand controlled shock absorbers and trust that these will give every satisfaction. We have in hand a further pair of these with straight levers and phosphor bronze bushes, we shall be despatching these to you shortly. With reference to the split crank, we are having one of these made up for testing purposes and will give you a report on this matter later. Enclosed please find drawings of our larger type shock absorber and also drawings showing on generous scale the relative displacement of our medium type shock absorbers. These show that the piston displacement over an of angle of 45° are exactly equal. With reference to your last paragraph, we appreciate the difficulties of bellows control to our type of valve, however Mr. Armstrong has now returned and we are going further into this question and Mr. Armstrong himself will no doubt be writing you in the next few days. Yours faithfully, p.p. ARMSTRONG'S PATENTS CO. LTD. MBogg | ||