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).
Torsional rating test and hysteresis curve for an American type shock damper connecting tube's rubber control pin bushes.
| Identifier | ExFiles\Box 151\2\ scan0305 | |
| Date | 26th August 1936 | |
| SHOCK DAMPER CONNECTING TUBE AMERICAN TYPE - RUBBER CONTROL PIN BUSHES. TORSIONAL RATING TEST - i-e TORQUE REQUIRED TO ROTATE TUBE ABOUT CENTRAL AXIS OF CONTROL PIN. HYSTERESIS CURVE UP TO 45° MOVEMENT TAKEN. TEST THEN REPEATED UP TO 85° MOVEMENT. ANGULAR MOVEMENT - DEGREES 100 80 60 40 20 LOADING RELEASING TORQUE LB.FT. 2 4 6 | ||