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).
Graph showing the opening and closing valve lift curves for a No. 6 exhaust valve with Cadillac type tappets.
| Identifier | ExFiles\Box 125\1\ scan0093 | |
| Date | 14th June 1919 | |
| CURVE ATTACHED TO REPORT OF CADILLAC TYPE TAPPETS FOR PIII OPENING AND CLOSING CONTOURS OF VALVE LIFT RAMP ON L.F. 82498 CAMSHAFT. NO 6 EXHAUST VALVE HELD OFF SEAT AT 2700 RPM. THRUST VALVE. OK TO S. SECRETT VALVE LIFT CLOSING CURVE VALVE LIFT OPENING CURVES No6 CRANK ANGLE LWS Y-Axis Labels: .060, .050, .040, .030, .020, .010 X-Axis Labels: 0, 10°, 20°, 30°, 40°, 50°, 60°, 70° | ||