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).
Technical drawing for a dual gauge dial, showing oil pressure and water temperature scales.
| Identifier | ExFiles\Box 175\5\ img007 | |
| Date | 3rd January 1938 guessed | |
| DR. 07L CH. DIAL FOR DUAL GAUGE. SK 49299 USED ON RR OIL PRESS LOW NORMAL HIGH WATER TEMP COLD NORMAL HOT 92° 105° 44° .500 106°C 50° 95°C 73° =75°C 51° =50°C 44° .218 .105" .160 1.600 DIA .020" .734 R .020 NOTE: ALL WORDS TO BE .033 HIGH. WORDS - OIL PRESS & WATER TEMP TO BE .020" THICK REMAINDER OF WORDS TO BE .012 THICK. SK49299 SCALE APP 1/1 MATERIAL FINISH | ||