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 to Jaeger Ltd. requesting particulars for a revolution indicator with a specific speed range.
| Identifier | ExFiles\Box 165\4\ img024 | |
| Date | 3rd October 1928 | |
| X4665 Hs{Lord Ernest Hives - Chair}5/LG. Expl: Dept: 3rd. Oct. 1928. Messrs. Jaeger Ltd., St.{Capt. P. R. Strong} Leonards Rd., Willesden Junction, London N.W.10 Dear Sirs, Will you please let us have particulars of your Revolution indicator. We require a speed range of from 400 to 3500 r.p.m. We wish to read to 20 revs. We believe at one time you made an indicator which went twice round in order to get the wide range. Yours faithfully, | ||