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).
Instruction memo regarding the experimental fitting of double valve springs and washers for Bensport.
| Identifier | ExFiles\Box 3\4\ 04-page258 | |
| Date | 19th April 1933 | |
| 1254. To-EX. from E/JNH. E/JNH.3/HP.19.4.33. c.HS.{Lord Ernest Hives - Chair} re Bensport. Will you please instruct experimentally a set of double valve springs with washers to the design as shown on LeC.3297, herewith. The drawing gives all the particulars for the springs. E/JNH. | ||