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 a modified set of valve wedges to test on valve spring noise.
| Identifier | ExFiles\Box 88\4\ scan0009 | |
| Date | 29th April 1933 | |
| X254. To RHC.{R. H. Coverley - Production Engineer} from Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls}5/KT.29.4.33. BENSPORT VALVE GEAR. Will you please make for us a set of valve wedges to E.56832 but with the outside diameter of the taper reduced by .016" This is to increase the working length of the valve spring by .100" for tests on valve spring noise. Hs{Lord Ernest Hives - Chair}/Gry.{Shadwell Grylls} | ||