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).
Inertia machine test graph for Mintex brake material on a Bentley, plotting coefficient of friction and temperature against the number of stops.
| Identifier | ExFiles\Box 141\3\ scan0157 | |
| Date | 27th July 1932 | |
| Y3409 BRITISH BELTING & ASBESTOS LTD. SCANDINAVIA MILLS, CLECKHEATON, YORKS., ENGLAND. INERTIA MACHINE TEST. COEFFICIENT OF FRICTION TEMP. DEGREES. F.{Mr Friese} C. NUMBER OF STOPS COEFF. OF FRICTION TEMPERATURE Material: MINTEX N.M.T. COMP. 2" x 1/4" Bentley. Brake Rig: STANDARD B.B.A. Drum: CAST IRON Drum Speed: 3,000 Ft./Min. Weight Loss: 12.0 Gms. Wear Factor: 0.405 Time Interval: 2 MINUTES Flywheel R.P.M.: 955 Power Absorption per Stop: 214,000 Ft. Lbs. 29,600 Kg. Metres H.P. Hrs per Gramme. Date: 27 JULY 32. Test No. C.242. I.M. Test. | ||