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 The S.U. Co. Ltd. requesting the supply of two dozen needles with specific measurements.
| Identifier | ExFiles\Box 121\4\ scan0058 | |
| Date | 3rd September 1935 | |
| X1487 Exptl. Dept. Hs{Lord Ernest Hives - Chair}/Swd1.17/KW. 3rd September, 1935. The S.U. Co.Ltd., East Works, Adderley Park, BIRMINGHAM 8. Dear Sirs, Will you please supply as soon as possible one dozen needles to S.V.6 and one dozen to S.V.7. The only variation between the needles is in the length of shoulder. The measurements are as follows, in thous, of an inch at intervals of .125" from the shoulder, No.1 being the top dimension. We have shown a limit of .002" on the shoulder and tapered length. 1 2 3 4 5 6 7 8 9 10 11 12 85 85 79.2 75.5 73.6 72.2 71 70 69 68 67 66 Yours faithfully, FOR ROLLS-ROYCE LIMITED. | ||