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).
Trial of a tank unit with a larger internal diameter pump tube for the Hobson K.S. Telegauges on Phantom II and 20/25HP chassis.
| Identifier | ExFiles\Box 61\3\ scan0127 | |
| Date | 17th October 1930 | |
| X4038. Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer} from Mx.{John H Maddocks - Chief Proving Officer} Mx{John H Maddocks - Chief Proving Officer}1/T17.10.30 re Phantom II and 20/25HP Chassis - Hobson K.S. Telegauges. Further to paragrah 4 of our memo Mx{John H Maddocks - Chief Proving Officer}/LA{L. A. Archer}12/T23.9.30 - the tank unit with the larger internal diameter pump tube has been fitted to a chassis since the 23rd ult. and has worked quite satisfactorily. It has given no trouble whatever, and there are no indications of the pump air line becoming stopped up. We return this tank unit to you herewith, together with the pipe line which was sent to us at the same time. Mx{John H Maddocks - Chief Proving Officer} | ||