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).
Exploded view diagram of a gearbox showing gear tooth contact specifications.
| Identifier | ExFiles\Box 22\4\ Scan028 | |
| Date | 21th May 1935 guessed | |
| NOTE - ALL MAIN SHAFT HELICAL GEAR TEETH TO BE LEANED IN THE DIRECTION TO FAVOR CONTACT SHOWN REGARDLESS OF DRAWING SPECIFICATIONS. THE REVERSE IDLER ALSO TO HAVE MODIFIED PRESSURE ANGLES TO PRODUCE CONTACTS AS SHOWN. NOTE - ALL COUNTER SHAFT GEARS TO BE MADE TO CORRECT LEAD, PRESSURE ANGLE, INVOLUTE AND TOOTH THICKNESS AS SPECIFIED ON DETAIL DRAWINGS. NOTE - DRIVING SIDES TO HAVE FULL CONTACT OR SHADING HEAVIER UPWARD. DRIVEN SIDES TO HAVE FULL CONTACT OR SHADING HEAVIER TOWARD BOTTOM OF TOOTH. FORWARD DRIVING SIDE FORWARD DRIVEN SIDE COAST DRIVING SIDE REVERSE DRIVEN SIDE REVERSE DRIVING SIDE FOR EXPERIMENTAL WORK ONLY Part Numbers on gears: 890380, 890381, 890383, 890384, 890385, 890879, 890401 Title Block Text: CADILLAC MOTOR CAR CO. DETROIT, MICH. PART NAME SKETCH SHOWING DIRECTION OF ROTATION AND TOOTH CONTACT XB-65877 | ||