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 specifying the requirements for a pair of special Bentley front springs.
| Identifier | ExFiles\Box 87\4\ scan0108 | |
| Date | 22th April 1936 | |
| Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Les.8/KW. 22nd April, 1936. Messrs. Thos. Firth & Jon Brown Ltd., Spring Dept., Tinsley, Sheffield. For the attention of Mr. Porter. Dear Sirs, We are requiring a pair of very special Bentley front springs having the following specification :- Load 725 and 750 lbs. Width of plates 1¾". Span 35". Loaded camber .5 pos. Free camber 6.000". Deflection due to load = 5.5". Camber, max. bump negative = 1.850". Lubrication similar to Rm.{William Robotham - Chief Engineer}72. Rolled eyes for top leaf. Stress max. bump approx. 48 tons/sq.in. We are arranging for a covering order to be issued for these springs. Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||