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 to Dunlop Rubber Co. Ltd. regarding issues with rubber engine mountings for the 40/50 HP car.
| Identifier | ExFiles\Box 65\4\ scan0086 | |
| Date | 20th September 1928 | |
| Y8005 Expl: Dept: Ha/Rm{William Robotham - Chief Engineer}3/LG. 20th. Sept. 1928. Messrs. The Dunlop Rubber Co.Ltd., Fort Dunlop, Erdington, Birmingham. Dear Sirs, For the attention of W.Bond Esq. RUBBER ENGINE MOUNTING. You will remember that you supplied us with rubbers for the rubber engine mounting on our 40/50 HP. car. We have now had some of these in service for 6 months, two of which we are returning to you under separate cover. As fitted up in the mounting the rubber is compressed to 1.00". As supplied by you its free length is 1.150". You will note that the two rubbers we are sending to you have taken a permanent set of .050". At the same time their rating has of course altered. We should be obliged if you could go into the matter and see whether any other rubber compound would prove more durable. We should also like your opinion as to whether the 1.150 set up is excessive, although you did not think this would cause any trouble in the first instance. Yours faithfully, | ||