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).
Modification to an Armstrong hydraulic damper to cure brake thump on Bentley vehicles.
| Identifier | ExFiles\Box 146\5\ scan0172 | |
| Date | 12th June 1939 | |
| 1245 W/P Sr/VA from BY/SB{Mr Bull/Mr Bannister} c. Rm{William Robotham - Chief Engineer} c. Hd{Mr Hayward/Mr Huddy} c. Ds c. Mx{John H Maddocks - Chief Proving Officer} c. D/BP c. GWH{George W. Hancock - Head Chateauroux} (K) BY/SB{Mr Bull/Mr Bannister}7/MG.12.6.39 BRAKE THUMPS - BENTLEY ------------------------- Thanks for your Sr/VA9/BT.{Capt. J. S. Burt - Engineer}9.6.39, from which we note that the Armstrong hydraulic damper sent to you by Rm{William Robotham - Chief Engineer}/AFM{Anthony F. Martindale} has completely cured the brake thump on B.6.MR, and that you now require a further 6 sets of parts. Since sending you this set, we have modified the fixing so that it can be fitted to any Bentley without drilling any holes in the frame or disturbing the brake mechanism in any way (except, of course, for the disconnection of the present friction device), and it therefore becomes a very simple modification which can be fitted up in about a quarter of an hour. 50 sets of these parts are now being ordered by Hd{Mr Hayward/Mr Huddy}, and a Depot Sheet will shortly be issued. The 6 sets you require will of course be taken from the 50 sets referred to. BY/SBSa | ||