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).
Drawing and calculation sheet for the Hepano Clutch and Bingo operating mechanism.
| Identifier | ExFiles\Box 22\1\ Scan064 | |
| Date | 16th January 1924 guessed | |
| HEPANO CLUTCH BINGO OPERATING MECHANISM. P 10. 1.125 FRICTION DISC PLATE WITHDRAWAL SLEEVE 437 lbs TO JUST RELEASE CLUTCH 3.812 2.25 1.225 TOTAL PRESS ON FRICTION DISC = 437 x 5.5 = 2403 lbs AREA OF FRICTION DISC - WIDE DIA = 12.44 INSIDE DIA = 1.22 AREA = 34.3 sq'' PRESS ON FRIC DISC = 2403 / 34.3 = app 40 lbs/sq'' FOOT PRESS REQ'D TO JUST RELEASE CLUTCH (437 x 2.25 x 1.125) / (6.125 x 10) = 28 lbs. (appx) ACTUAL FEELING REQUIRED = 28 lbs | ||