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).
Letter from H.M. Hobson, Ltd. discussing spring-loaded or positive pump options.
| Identifier | ExFiles\Box 44\3\ Scan174 | |
| Date | 23th January 1929 | |
| Messrs.Rolls-Royce,Ltd., Date 23.1.29. Page 3 if necessary, either a spring loaded or positive pump could be used. We apologise for writing at this length, but we have put down the various points which occurred to us when considering a positive pump delivering underneath the bell system, in a similar manner to that used on the aeroplane gauge. Assuring you at all times of our best attention, We remain,dear Sirs, Yours faithfully, H.M.HOBSON,Ltd., [Signature] Joint Managing Director. | ||