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).
The hardness of scuttle isolation rubbers, requesting a complete set for testing.
| Identifier | ExFiles\Box 53\4\ Scan232 | |
| Date | 18th July 1930 | |
| x 4613 BY/EM. From Hs{Lord Ernest Hives - Chair}/AJL. Hs{Lord Ernest Hives - Chair}/AJL.1/MJ.18.7.30. SCUTTLE ISOLATION RUBBERS. With reference to your By/EM1/J.16.7.30. the hardness of the sample rubbers submitted appears to be about correct. We cannot, however, give a definite decision unless we have at least one complete set of rubbers. Will you please therefore obtain one, or preferably two sets of all the rubbers which go to make a set (F.55879, 50729, 79206/7, 80727) in the same mixing of rubber as the sample submitted. As an alternative, we would like to test a set 10% to 20% softer than the sample. Hs{Lord Ernest Hives - Chair}/AJL. | ||