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).
Request to manufacture four experimental brush-holder springs from two different wire gauges.
| Identifier | ExFiles\Box 166\1\ img076 | |
| Date | 11th June 1936 | |
| To RHC{R. H. Coverley - Production Engineer}: 6093Hs{Lord Ernest Hives - Chair}/Wst.11/JH.11.6.36. Experimental Brush-holder Springs. EX. 22950. Will you please have made 4 springs to Of these, two are required to be made of 22 S.W.G. material as shown on the drawing, and two of 23 S.W.G. material. As regards those made of 23 gauge wire; the length of the spring should be the same, i.e. .612", the difference being in the number of coils. Hs{Lord Ernest Hives - Chair}/Wst. | ||