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).
On hotel letterhead regarding supercharger gears, engine tests, and roughness comparisons between different vehicles.
| Identifier | ExFiles\Box 173\4\ img103 | |
| Date | 26th November 1933 | |
| HOTELS NEW YORKER & LEXINGTON, NEW YORK - NETHERLAND PLAZA, CINCINNATI - ADOLPHUS, DALLAS - VAN CLEVE, DAYTON Book-Cadillac Hotel DETROIT Ralph Hitz President 5 (F) The only way Frazer have found to get their supercharger worm drive to remain quiet is by using straight which rack teeth made only by the Michigan Tool Co. These have a large area of contact and if accurately located to .00025" are quite satisfactory. GM Research made like the Auburn Chrysler chiz but Kirkham says that dirty oil very soon causes trouble. morning of 26-11-33. LW will collect from Rm{William Robotham - Chief Engineer} a whole lot of charts on the Zephyr and as many of the others as possible. By the time we have found out why the Zephyr 12 is so rough or rougher than the Ford V8 we have copied exactly the Cadillac V8 on 1 which ? I'm conveying up to Strom Corp. Cadillac use a 'diamond' rubber mounting & by stapling the ties fore & aft to allow an unequal distribution of the engine fore and aft for maximum smoothness. GRY{Shadwell Grylls} | ||