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).
Machining instruction sheet with specifications for bevel gears, including wheel and pinion dimensions and change gear settings.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page079 | |
| Date | 14th April 1913 | |
| 11734 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: O O (Mr Poole) Appoint on Test 19.6.13. Order No. Customer's No. X138 Re: Machinery Instructions Bevels G2752/3 Particulars | Wheel | Pinion Number of Teeth | 61 | 19 Outside diameter | 12.270 | 4.438 Pitch diameter | 12.200 | 3.800 distance E along hypothenuse | 6.389 | 6.389 Module | .200 | .200 Angle of Top of Teeth | 1°~3' | 2°~33' Angle of Face | 2°~46' | 1°~16' Height of Tooth | .475 | .475 Pitch angle | 72°~42' | 17°~18' Change Gears | Driver Gear | Change Gear | Idler Gear | Anchor Gear Wheel | 24 | 61 | 88 | 61 Pinion | 72 | 57 | 88 | 38 Roll Cams | Wheel 71°~15' Pinion 18°~26' Lifting Cams | .750 wheel & Pinion Division Plate | Rough Cut | Right-Side | Left-side Pinion Wheel Signed: RMB13 See also sheet 8364 6.5.13 This Sheet must be filed on completion of the work. | ||