Operational lag in a vacuum-operated clutch and proposing modifications.
| Identifier | ExFiles\Box 128\2\ scan0216 | |
| Date | 17th November 1933 | |
| To RHC. {R. H. Coverley - Production Engineer} from Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} (2200. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} 11/KT:17.11.33. VACUUM OPERATED CLUTCH ON 19.G.IV. We find there is a lag in the operation of this device owing to restriction in the pipe lines and unions. Will you please supply us with a .250" diameter pipe, and increase the holes through, and the space round, the banjos as much as possible. We think that a rubber connection should be incorprated in the pipe line, as we are afraid of failure with the present copper pipes due to the movement of the valve. Hs {Lord Ernest Hives - Chair} /Gry. {Shadwell Grylls} | ||
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).