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).
Faults and proposed modifications for the Lucas Windscreen Wiper system.
| Identifier | ExFiles\Box 167\5\ img219 | |
| Date | 12th July 1938 | |
| To By.{R.W. Bailey - Chief Engineer} W/S Hn.{F. C. Honeyman - Retail orders} c. to Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} 6(15) Rm{William Robotham - Chief Engineer}/RC.{R. Childs}9/JH.12.7.38. re Lucas Windscreen Wiper. In answer to our report Rm{William Robotham - Chief Engineer}/RC.{R. Childs}14/JH.5.7.38. re faults on the Lucas Windscreen wiper, Messrs. Lucas sent along their expert Mr. Mason, to discuss the matter. He admitted the faults which we put before him, and had brought along modifications, which in his opinion, would provide a complete answer to the troubles. The modifications submitted are as follows - (1) A new method of fixing, for the wiper arms. This appears to be a definite improvement on the existing methods. (2) A rubber lining for the wiper blade to prevent "clicking." (3) A tapered crankpin on the driving mechanism in place of the existing straight shank. This it is claimed, will give better wear and prevent sloppiness in the link movement. This sloppiness is the cause of the "thump" which occurs at the end of each stroke of the blade. He stated that this modified form of drive had completed 15,000 hours endurance run in his Laboratory; no lubricant being used during the test. (4) A modification to the control knob and anchor plate to prevent chatter. With regard to the high pitched whine on 27.G.VI. he claimed that had the motor been mounted, as intended, on the engine side of the dash, instead of at present, on the drivers side, no whine would be audible; we replied, that such a note would be objection from any part of the R.R. car. Mr. Mason assured us that they could provide silent motors, and that | ||