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).
Placement and feasibility of controls for direction indicators on the steering column.
| Identifier | ExFiles\Box 166\6\ img031 | |
| Date | 6th October 1937 | |
| 6073 To C. From RM{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} c.c. By.{R.W. Bailey - Chief Engineer} X RC{R. Childs} Rm{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer}5/MH.{M. Huckerby}6.10.37. DIRECTION INDICATORS. We have looked into the matter of arranging the operating lever of the time switch for the direction indicators on the steering column, and the following are our conclusions. As the ignition control lever will soon be omitted from the steering column, we considered mounting the 'works' of the time switch at the lower end of the column, and operating it by the spare control tube. This we have ruled out as impractical because the time switch has insufficient power to return a control tube to the central position. The only alternative is to put the time switch in the boss of the steering wheel. The works of the switch occupy a space 2" dia. x 1 1/4" long, and it is quite impossible to house this in the space at present available. So far as we can see, it will not be possible to put the switch at the top of the column and retain mechanical control levers without considerably increasing the size of the steering wheel boss. The attached sketch, Rm.{William Robotham - Chief Engineer}462, shows the increased size necessary. The Lucas system occupies less space than the time switch, but even so, we do not know of any car on which it is used in addition to mechanical controls. RM{William Robotham - Chief Engineer}/FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||