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 a supplier regarding preliminary tests and a request for stress figures and drawings for 25 HP springs.
| Identifier | ExFiles\Box 106\1\ scan0376 | |
| Date | 1st November 1935 | |
| X526 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Les.12/KW. 1st November, 1935. Messrs. Thos. Firth & John Brown Ltd., Spring Dept., Tinsley, Sheffield. Dear Sirs, We have made preliminary tests with the special low rating 25 HP. springs F.61003, and F.61009. For certain conditions these springs are very good. We are now therefore interested in springs of similar initial deflection which would be reliable for production. Can you please let us have the full stress figures for both these springs and also a drawing of some springs having similar characteristics with stresses which we could use for production: please do not make them too heavy! Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||