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 accompanying a disc and drawing used for testing brake linings, with a request for four more to be made.
| Identifier | ExFiles\Box 90a\2\ Scan226 | |
| Date | 1st October 1934 | |
| 47962 Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}1/MA. 1st October, 1934. E.R.Hall, Esq., Hartley Cottage, Kirkburton, YORKS. Dear Hall, Here is the disc which we use for testing brake linings together with the drawing. If you have some material which you consider is good you could get them to make up four discs to these dimensions we could quickly obtain a value for its characteristics. Yours sincerely, | ||