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).
Graph comparing the temperatures of a brake drum and brake lining during continuous running.
| Identifier | ExFiles\Box 141\3\ scan0237 | |
| Date | 20th November 1933 | |
| FERODO LTD CHAPEL-EN-LE-FRITH COMPARISON BETWEEN TEMPERATURES OF DRUM AND BRAKE LINING. DEGS. F BRAKE DRUM TEMPERATURE CURVE 2. CURVE 1. MINS. CONTINUOUS RUNNING LINING. FERODO MZ. 1/4" THICK. CURVE 1. TEMPERATURE BETWEEN INSIDE FACE OF LINING AND SHOE. CURVE 2. TEMPERATURE TAKEN AT 1/16" FROM RUBBING FACE BY INSERTING THERMO COUPLE INTO THE LINING. RATE OF WORK 1 H.P. PER □". SPECIFIC HEAT OF FERODO MZ - 0.244. DIAGRAM No 453 20/11/33 | ||