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).
Comparison of two throttle governor control lever arrangements to reduce the load on the hand control.
| Identifier | ExFiles\Box 66a\3\ scan0061 | |
| Date | 18th April 1925 | |
| THROTTLE GOVERNOR REDUCTION OF LOAD ON HAND CONTROL (Arrangement i) TORQUE ABOUT A.{Mr Adams} FULL HAND CONTROL MOVEMENT. 25° CAMSHAFT ROTATION 24.5 INS LBS Dimension: 1.75" Dimension: 1.5" Spring Rating: 10 LBS / 1" THROTTLE CLOSING SPRING NEGLECTED FOR SIMPLICITY WHEN CALCULATING THESE RESULTS (Arrangement ii) TORQUE ABOUT A.{Mr Adams} FULL HAND CONTROL MOVEMENT. 25° CAMSHAFT ROTATION 34.6 INS LBS. Dimension: 1.65" Dimension: 1" Spring Rating: 15 LBS / 1" TWO ARRANGEMENTS OF THROTTLE GOVERNOR CONTROL LEVERS. THESE ARRANGEMENTS GIVE EQUAL GOVERNOR SENSITIVENESS BUT THE LOAD ON THE HAND CONTROL IN (II) IS 40% GREATER THAN IN (I) MANUAL EFFORT TO OPERATE SYSTEM (I) COMFORTABLE (Watermark text: MADE AT CROXLEY) (Watermark text: CONDITIONS) (Stamp text: ROLLS-ROYCE LIMITED, DERBY, 18 APR. 1925) | ||