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).
Request to fit an eight balance weight scheme on a large pin 25 HP crankshaft.
| Identifier | ExFiles\Box 103\3\ scan0050 | |
| Date | 5th May 1931 | |
| X5010. Ey. from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} Hs{Lord Ernest Hives - Chair}/RM{William Robotham - Chief Engineer}1/AD4.5.31. X5010. X634. During our recent visit to West WitteringHenry Royce's home town R.{Sir Henry Royce} asked us to arrange for his eight balance weight scheme to be fitted on to the large pin 25 HP. crankshaft in place of the existing 12 weight scheme. The attached memo shews how this can be done. Will you please detail the necessary balance weights, or if there are any difficulties which require assistance from W.W. let us know. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||