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).
Query regarding the recommended maintenance interval for propeller shaft universal joints on 20HP and SS chassis.
| Identifier | ExFiles\Box 15\4\ Scan060 | |
| Date | 13th August 1929 | |
| x7340. Hs{Lord Ernest Hives - Chair} Mx{John H Maddocks - Chief Proving Officer}/McMl/T13.8.29. X5340 X7340 re Propeller Shafts Will you please let us know the rate at which the propeller shaft universal joint should be attended to, either number of miles or time. We shall require this information for both 20HP and SS{S. Smith} chassis. [handwritten annotation pointing to 'attended to']: lubrication Mx{John H Maddocks - Chief Proving Officer}/McM [Signature] | ||