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).
Diagram illustrating the setup for the measurement of battery vibrations using a cantilever and steam indicator.
| Identifier | ExFiles\Box 137\4\ scan0160 | |
| Date | 8th January 1931 guessed | |
| CANTILEVER, Hs{Lord Ernest Hives - Chair} 303, Hs{Lord Ernest Hives - Chair} 302, STEAM INDICATOR, BATTERY BOX, MEASUREMENT OF BATTERY VIBRATIONS | ||