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 Thos. Firth & John Brown Ltd. requesting special low rating Bentley springs with detailed specifications.
| Identifier | ExFiles\Box 87\4\ scan0097 | |
| Date | 1st January 1936 | |
| xv46 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Les.14/KW. 1st January, 1936. Messrs. Thos. Firth & John Brown Ltd., Spring Dept., Tinsley, Sheffield. For the attention of Mr. Porter. Dear Sirs, We are requiring 2 more sets of special low rating Bentley springs, rather similar to those you supplied from the information in our letter Hs{Lord Ernest Hives - Chair}/Les.22/KW. of the 16th September. 2 pairs of Front Springs Free Camber = 3.900". Loaded Camber = .400" positive. Max. Bump Camber = 1.850" negative. Load = 700 lbs. Thickness of Top Plate = .220". All other particulars as on FB.1248. 2 pairs of Rear Springs. Free Camber = 5.00" Loaded Camber = .500" negative. Max. bump Camber = 4.500" negative. Load = 900 lbs. All other particulars to FB.896. Will you please let us have a drawing including stress figures for these springs, as soon as possible. Yours faithfully, FOR ROLLS-ROYCE LTD. | ||