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).
Design and sourcing of cast iron Spectre Tappets, noting required part changes.
| Identifier | ExFiles\Box 96\2\ scan0041 | |
| Date | 25th April 1935 | |
| To DY.{F R Danby} from E/JNR.{Charles L. Jenner} c. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} RHC.{R. H. Coverley - Production Engineer} SECRET. x.354 E/JNR.{Charles L. Jenner}2/HP.25.4.35. L.P. Smith. Follow up please. Rm.{William Robotham - Chief Engineer} re SpectreCodename for Phantom III Tappets. Please receive herewith:- LeC.4470 showing the design of the tappet in cast iron with chilled contact face. We suggest that the castings be obtained from Messrs. Pattisson & Hoburn of Coventry. These people are extensively making this product for the trade. It will be noticed with this scheme that the push rods, tappet blocks, and clamping jaws, are unaltered. We require, however, new springs and spring caps. LeC.4470 herewith. E/JNR.{Charles L. Jenner} | ||