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).
Valve spring, breaking, and cam shape.
| Identifier | ExFiles\Box 80\3\ scan0104 | |
| Date | 14th December 1911 | |
| R.R. 512 (2 1/2 H) (X. 435. 14.12.11) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2227. X841 (crossed out) X299 Section 604 Description: Valve s/p, breaking, & cam shape. First Column: Date: 1/1/12. REPORT: H.{Arthur M. Hanbury - Head Complaints} wish to test slope of cam, especially on those which have valve s/p. broken. C.O. Reminded. Date: 17/1/12. REPORT: Waits opportunity Date: 23/1/12. (crossed out) Date: 21/2/12. REPORT: " " Date: 21/3/12. REPORT: 3 curves taken sent to E.Pin Second Column: Date: 9/7/12 REPORT: France. Curves show good shape of cam & very little variation. REPORT: file 10/7/12. EA | ||