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).
Departmental memo discussing the performance and efficiency of an axle's worm gear, comparing it to a Lanchester worm.
| Identifier | ExFiles\Box 2\6\ B002_X 140 141 157-page202 | |
| Date | 25th January 1912 | |
| S. 275 (26 D) 1M. 25.1.12. E.P. opt. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (Two Lines). DEPARTMENTAL MEMO. This column is for Name of Person addressed. DATE. off the worm wheel, the oil film evidendy having been broken through. The axle had to be run under light load for a considerable time before it would run anything like satisfactory and give reasonable efficiency. 3. When on retard the axle is very inefficient and there appears to be continual brake on the car when the throttle is closed, one has to use power to coast down hill which on cars fitted with ordinary axles one has to use brakes. As regards forward drive the axle is still very efficient and running well also the worm and worm wheel do not appear to be suffering badly from wear and tear and are in considerably better condition than the Lanchester worm. This sheet must be filed with the correspondence to which it refers. | ||