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).
The mechanical efficiency of a Bentley and 25 HP servo motor and the efficiency of its servo linings.
| Identifier | ExFiles\Box 87\5\ scan0030 | |
| Date | 26th October 1934 | |
| x241 EXPERIMENTAL DEPARTMENT REPORT REFERENCE :— Wa{Mr Wallis}/FJH.{Fred J. Hardy - Chief Dev. Engineer}7/KW.26.10.34. Subject of Report :— Mechanical Efficiency of Bentley and 25 HP. Servo Motor and efficiency of Servo linings. General Conclusions :— Ball bearing bridge and spring ring torsional connection greatly increase mechanical efficiency, and that more satisfactory servo linings are required. Copies of Report Circulated to :— E.{Mr Elliott - Chief Engineer} Wor.{Arthur Wormald - General Works Manager} Da.{Bernard Day - Chassis Design} Hy.{Tom Haldenby - Plant Engineer} Hdy.{William Hardy} Report to be noted for further action by :— Exptl. Dept. and Da.{Bernard Day - Chassis Design} Test carried out on :— No. 5 Test Bed, Servo Test Rig and Bentley chassis B-23-AE. By :— F.J. Hardy K.{Mr Kilner} Scholes. Test No. Date :— 26.10.34. RR 2X (20H) (60708 6-3-34). G.C.B. | ||