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).
Scheme for an induction pipe to fit two separate Zenith carburettors to a 25 HP engine.
| Identifier | ExFiles\Box 122\1\ scan0105 | |
| Date | 20th May 1931 | |
| RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X1053. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/KT.20.5.31. INDUCTION PIPE FOR TWO SEPARATE ZENITH CARBURRETTERS. Attached herewith is a scheme No.X.782. for fitting two single Zenith 36.V.I. carburetters to the 25 HP. We have ordered two of these carburetters, and would like you to make up a pipe to this scheme. We have not checked it over ourselves but suggest that you should make sure that there are no obvious errors before you put it in hand. It will be noticed that the hot spot has been taken from the centre of the cylinder block, actually we shall be utilising the passage through the cylinder head. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||