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 Coshawk 11 valve gear spring washer.
| Identifier | ExFiles\Box 48\4\ Scan050 | |
| Date | 17th October 1921 | |
| X.4226. To Da.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} c. to CJ. c. to Wor.{Arthur Wormald - General Works Manager} c. to BY.{R.W. Bailey - Chief Engineer} c. to Hs.{Lord Ernest Hives - Chair} E6/G17.10.21. COSHAWK 11 - VALVE GEAR. X.4226. We send you herewith drawing LeC.1466 shewing the valve spring washer modified. The alterations from the original design shewn on LeC.1332 consist of - 1. Making the pieve from bar instead of sheetmetal. 2. Adding larger radius in corner where original design was wear. 3. Slightly thickening the top flange and adding a chamfer, E.{Mr Elliott - Chief Engineer} | ||