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).
Modifications to the Phantom III valve gear, comparing two schemes for locating tappet guides.
| Identifier | ExFiles\Box 96\2\ scan0162 | |
| Date | 14th October 1936 | |
| 354. SWDL.{Len H. Swindell} Rm{William Robotham - Chief Engineer} Will the suggested modification require experimental testing? Sft{Mr Swift}2/BH.24.10.36. Rm{William Robotham - Chief Engineer} E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} from Sft.{Mr Swift} PHANTOM III. VALVE GEAR. LeC.5278 and LeC.5293. Memo' Ref. E.5/HP.14.10.36. With reference to the modifications to the location for Tappet Guides shown in LeC.5278, we agree that this method would show further savings in addition to those given in our previous estimate for LeC.5293 (see memo' Sft{Mr Swift}/WNWl/DR.1.10.36) We see no difficulty in manufacture, and this method, together with the single Clamp and Die Cast Block should make the economy worth while. As regards the first modification shown on LeC.5293 locating the guides by a fine fitting Clamp, we did not anticipate any trouble with the method of tooling we had in mind. We however, feel that the later scheme LeC.5278 is preferable. Sft.{Mr Swift} | ||