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).
Notice about the careful handling of delicate instruments with moving iron vanes.
| Identifier | ExFiles\Box 61\3\ scan0359 | |
| Date | 28th July 1933 | |
| -2- Hs{Lord Ernest Hives - Chair}/Wst.6/MA.28.7.33. Cont'd.{John DeLooze - Company Secretary} Great care should be taken in handling these instruments in our Works due to the extremely delicate movement of the moving iron vane inside the instrument. Owing to the magnetic forces being small slight friction due to a bent or damaged pivot would cause the meter to read false. | ||