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).
Attaching a letter about materials for brake drum liners and composite drums.
| Identifier | ExFiles\Box 85\1\ scan0210 | |
| Date | 2nd October 1936 | |
| Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} x206 BY.11/G.2.10.36. MARTINDALE Rm{William Robotham - Chief Engineer} CHASSIS - BRAKE DRUM LINERS - COMPOSITE DRUMS. I attach hereto copy of a letter received from the British Piston Ring Co. Ltd. in connection with a material for brake drums. You will remember they supplied us with some austenitic iron for our earlier tests, which gave very good results but we turned down on account of cost. BY.{R.W. Bailey - Chief Engineer} | ||