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).
Diagram and table detailing the servo multiplication of torque for a braking system.
| Identifier | ExFiles\Box 182\M20\M20.3\ img017 | |
| Date | 4th June 1934 | |
| ADOPTED SCHEME:- M.{Mr Moon / Mr Moore} Des. 60 T.I. N. Sch: 1801 Servo G.72550 WITH 55° CAM SERVO SPEED 1/7. S = SERVO MULTIPLICATION OF TORQUE TABLE DATA: | FOOT RATIO TO REAR | SERVO RATIO TO REAR. | SERVO RATIO TO FRONT. | TOTAL BRAKING TO REAR. | BRAKING TO FRONT | TOTAL BRAKING | REAR BRAKING / FRONT | SERVO MULTIP'N. | |---|---|---|---|---|---|---|---| | 25 | 23.7 S | 31.8 S | 47.7 x 15 = 715 | 60.5 x 17 = 1030 | 1745 | 1 / 1.44 | 1.5 | | 25 | 35.5 | 47.7 | 60.5 | | | | | THE FIGURE GIVEN FOR 'BRAKING' IS ONLY A RATIO BEING THE LOAD IN CAM LINK TIMES THE DRUM DIAMETER. DIAGRAM VALUES: 7, .5, 2.5, 1.8, 2.550, 2.05, 2.625, 5.8, 7.85, 6.175, 15.65, 2.8, 3.3, 4.5 STAMP: ROLLS-ROYCE LIMITED PRINT ROOM 4 - JUN 1934 DERBY | ||