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 plotting torque against the angle of twist for serrated/pressed fit lever tests.
| Identifier | ExFiles\Box 6\6\ 06-page155 | |
| Date | 2nd January 1937 | |
| WRAITH II SERRATED/PRESSED FIT LEVER TESTS EC 5375 EX 25164 SHAFT EX 85165 LEVER .015" INTERFERENCE ON SERRATIONS BOLTED TO BED TORQUE APPLIED AT END OF LEVER ANGLE OF TWIST - DEGREES TORQUE LB. FT. A B PERMANENT SET (B) | ||