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).
Providing instructions for machining a 25 HP crankshaft to specific dimensions and drawings.
| Identifier | ExFiles\Box 103\3\ scan0100 | |
| Date | 19th September 1931 | |
| Y5010. To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}2/MJ.19.9.31. 25 HP. CRANKSHAFT. With reference to the crankshaft which you are making to take either type of slipper drive. Will you please make the journals and webs to LeC.2948, and machine all the webs opposite the pins to take the big weight shown on LeC.2948. Details of the weights will follow. Hs{Lord Ernest Hives - Chair}/H.Grylls. | ||