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 sheet requesting information and analysis of valve springs from Mercedes and Napier engines.
| Identifier | ExFiles\Box 80\3\ scan0140 | |
| Date | 13th February 1913 | |
| R.R. 300. (6 B) (L. L. 690. 26.9.12) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2901. ROLLS-ROYCE LIMITED. E.{Mr Elliott - Chief Engineer} 7594 INSTRUCTIONS. To: agr Hal derby To (crossed out): AW Wormald Please deal with 13.2.13 WN Order No.: Re: R I B 11213 Date: 13/2/13 191 Customer's No.: #74 Will the experimental dept please provide with the following information at the earliest possible moment:- The length of length in position when valve is at top of lift of Mercedes & Napier Inlet & Exhaust Valve Spring:- Diameter of coil, & dia of wire of afore mentioned springs. The load which each spring will support when its length corresponds to the length in position on the engine when valve is at top of lift. Will the exp: dept also provide models of the springs examined. VALVE SPRINGS. Signed: C E Ollitt This Sheet must be filed on completion of the work. | ||