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).
The endurance testing and modifications of a Lucas Wiper unit.
| Identifier | ExFiles\Box 167\5\ img228 | |
| Date | 25th August 1938 | |
| W/S - Hn.{F. C. Honeyman - Retail orders} c. to By.{R.W. Bailey - Chief Engineer} c. to Rm{William Robotham - Chief Engineer}/FD.{Frank Dodd - Bodies} Rm{William Robotham - Chief Engineer}/RC.{R. Childs}20/JH.25.8.38. re Lucas Wiper. With reference to Hn.{F. C. Honeyman - Retail orders}8°AH.13.8.38., we are not yet in a position to give a full report on the modified wiper. However, a modified unit has, up to the moment, completed 160 hours endurance test on the bench without any signs of failure. We do feel satisfied that the new unit is a distinct improvement over the former type. Is it not possible to purchase first sufficient quantities of these units for your immediate requirements until we have finished our endurance test, and also obtained some running experience on the car? In the meanwhile we will complete our tests and recommend as soon as possible. The modifications are as follows :- (1) Taper collet fixing of the wiper blades, to prevent them from working loose. (2) Taper pivots and spring loading on the tie-bars which should give longer life and freedom from a sloppy action. (3) Rubber packing on the blades to minimise noise. (4) Pull 'ON' instead of Push 'ON' switches; this will leave the control knob in the inner position when the wipers are out of action. Rm{William Robotham - Chief Engineer}/RC.{R. Childs} | ||