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 inefficiency of the Lentz gear.
| Identifier | ExFiles\Box 136\4\ scan0017 | |
| Date | 15th January 1912 | |
| R.R. 475 (50 H) (X 448. 16.12.11). E.P 798. ROLLS-ROYCE LIMITED, NIGHTINGALE ROAD, DERBY. TELEGRAMS: "ROYCAR," DERBY. TELEPHONES: 813 (TWO LINES). N21/B15112. DEPARTMENTAL MEMO. This column is for Name of Person addressed. DATE. Re Lentz Gear. Z 524 Mr Barrington 15-1-12 With reference to the Lentz gear, I consider the chief source of inefficiency of this gear is the forcing of the oil through small passages at comparatively high speed; also, the friction in the parts of the pump and motor itself must be considerable in order to maintain the various joints. This sheet must be filed with the correspondence to which it refers. | ||