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).
Cam finishing, platinum point pressure, and the compression of grey fibre material.
| Identifier | ExFiles\Box 181\M11\ img048 | |
| Date | 1st June 1917 | |
| To EH. & FHC. from Oy. 2. OV2/B30:6:17. (b) Whether the cam was well finished. (c) What was the pressure on the platinum points. The grey fibre used should be compressed in small squares of about .75 in.² area. These are put into the hydraulic press two at a time and are compressed with the maximum load, which makes them about 75% of their original thickness. They gradually recover about another 5%, giving 20% final contraction. Oy. M.Olley. | ||