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 Dunlop Rubber Co. regarding experimental rubber buffer blocks for a 20 HP engine.
| Identifier | ExFiles\Box 45\2\ Scan156 | |
| Date | 17th May 1929 | |
| X4050. DUNLOP RUBBER CO.,LTD. TELEGRAPHIC ADDRESS: 'DUNLOPS, PHONE, BIRMINGHAM.' TELEPHONE: BIRMINGHAM, CENTRAL 4108 P. B. E.{Mr Elliott - Chief Engineer} 25 LINES EXTENSION No. 339. YOUR REF: OUR REF: FBJ/LEM/NGH.1. FORT DUNLOP ERDINGTON BIRMINGHAM 17th May 1929. W.A. Robotham Esq., Messrs. Rolls Royce Ltd., D E R B Y. Dear Sir, RE BUFFER BLOCKS FOR 20 HP ROLLS ROYCE ENGINE. We have been carrying out experiments to select a suitable rubber for these blocks and are submitting 4 samples of No. 8 quality which we think will meet your requirements. You will notice that these blocks are moulded in a manner different from that employed for the standard blocks for the 40 - 50 h.p. engine. This modification has been made in order to give accurate control of the free length of the blocks and should ensure greater regularity than it has been possible to obtain with the other type of moulding. I shall be glad to have your opinion as to whether this is an improvement or not. If these blocks are hard enough to fulfil your requirements we shall be pleased to supply a number for your exhaustive test immediately on hearing from you. Yours faithfully, FOR THE DUNLOP RUBBER CO .LTD. [Signature] Compounds Division. | ||