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).
Lanchester patent for a crankshaft damper and its potential application to a Goshawk engine.
| Identifier | WestWitteringFiles\Q\April1927-June1927\ 25 | |
| Date | 20th April 1927 | |
| TO HS.{Lord Ernest Hives - Chair}) FROM R.{Sir Henry Royce} (At Le CanadelHenry Royce's French residence.) C. to BJ, WCR, E.{Mr Elliott - Chief Engineer} MT. CLAREMONT. ORIGINAL REC'D DURING EASTER, AND DESPATCHED 20.4.27. CRANKSHAFT DAMPER - LANCHESTER PATENT. X6784 I notice that in 1911. we were sending out chassis with spring drive damped, (at the nose end of the crankshaft), i.e. opposite end to flywheel, which included the belt pulley for the fan. This was in effect exactly like Goshawk l., having some friction and inertia, but was found later to be insufficient, and a separate additional friction flywheel was fitted. It is just possible that Lanchester tried to get a patent that would cover Goshawk l., but had to narrow his claims to his special fluid device, or whatever his claims cover. But we ought to be very certain, as it looks as though this Goshawk l. device is what we shall be fitting to our engine. Hs{Lord Ernest Hives - Chair} APR 21 1927 R.{Sir Henry Royce} | ||