Design and future development of hydraulic shock absorbers.
| Identifier | ExFiles\Box 56\1\ Scan150 | |
| Date | 15th June 1931 | |
| S/W. {Sales / Derby Works} (---) c. to Hs. {Lord Ernest Hives - Chair} Hs. {Lord Ernest Hives - Chair} 8235. Sg {Arthur F. Sidgreaves - MD} 3/D15.6.31. RECEIVED 16 JUN 1931 Re: Hydraulic Shock Absorbers. ------------------------- Referring to the above and the question of the WW. design containing certain features which were not satisfactory from a manufacturing point of view, after speaking to you about this at Derby last week, I wrote to DA. {Bernard Day - Chassis Design} to find out what had happened. I enclose copy of memorandum he has written to BY. {R.W. Bailey - Chief Engineer} on this subject. In his letter to me he says that when the difficulty was explained, R. {Sir Henry Royce} agreed to use either square or parallel serrations, - whichever Derby preferred. He then goes on to say that Derby have a satisfactory shock damper for production, and I presume this is the type referred to in the first paragraph of Worb/T23.5.31 and which I understand is to be type-tested on the 10,000 mile 20/25? I should be glad to know whether this will also deal with the question of modified form of shock absorber for the 40/50? If not, what is happening in that direction? On the question of dashboard control for shock absorbers, which, as mentioned in a former memo., is our ultimate aim, DA. {Bernard Day - Chassis Design} says, "We have already sent to Derby a scheme for this in connection with the double piston shock damper, and this experiment can be put in hand immediately it is desired." I should be glad to know what is happening about this, because it is really a very attractive feature and would be a very helpful selling point if we could offer shock damping with variable control from the driver's seat for the Continental Model, and then later on bring it along as standard. Sg. {Arthur F. Sidgreaves - MD} Enc: 1. | ||
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).