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).
Blueprint for a cam grind component showing detailed dimensions and drilling instructions.
| Identifier | ExFiles\Box 173\3\ img033 | |
| Date | 2nd June 1934 | |
| Handwritten top right: Correct Top centre: .0015 IN 4 INCHES Drawing Annotations: 5°, .602, 7/32, 5/32, 14/32, 5R/32, 20°, 7/8, 1 3/4, 5/32 DRILL - 10 HOLES, IN C/L OF 3/16 GROOVE Title: CAM GRIND PIS..., SHOWN ON L... Revisions Table: Column A: PREVIOUS ED{J. L. Edwards}-7650, CHANGED 2.7.34, TO ND7650A, SEE M G Column B: 3/16, 2.8.34, 7/32, BARNES WIRE Main Block: DO NOT SCALE THIS BLUE PRINT THIS IS A PROPOSAL DESIGN ONLY, TO BE TESTED AND APPROVED BY THE VENDEE BEFORE BEING ADOPTED. TOLERANCE ON ALL FINISHED DIM. TO BE +/- .0010 OF AN INCH UNLESS OTHERWISE SPECIFIED. DATE 2-6-34 ROUGH WEIGHT DESIGNED BY DRAWN BY A.J. CHECKED BY APPROVED | ||