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).
Issue with Spectre valve spring washers where the spring tip digs into the bottom washer.
| Identifier | ExFiles\Box 96\2\ scan0048 | |
| Date | 26th June 1935 | |
| To RHC.{R. H. Coverley - Production Engineer} x357 Hs{Lord Ernest Hives - Chair}/Smth.4/KW. 26.6.35. SpectreCodename for Phantom III Valve Spring Washers. RHC.{R. H. Coverley - Production Engineer}5/ETM. 24.6.35. The washers in question have been used in conjunction with the double springs Hs.{Lord Ernest Hives - Chair}1827/8. We have examined these springs and find that the tip of the bottom coil of the outer spring is not sufficiently ground away, causing the spring to bed only on the tip and at a point diametrically opposed to it. We think that this is the cause of the digging into the bottom washer. Hs{Lord Ernest Hives - Chair}/Smth. | ||