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).
Scheme for a proposed new design of a modified lighting switch lever in black moulding material.
| Identifier | ExFiles\Box 168a\2\ img412 | |
| Date | 6th May 1939 | |
| c. Rm.{William Robotham - Chief Engineer} 6/5 (handwritten) DA.{Bernard Day - Chassis Design}1/G.S.S.39. D.CD.1232 - MODIFIED LIGHTING SWITCH. This scheme shows a proposed new design of lever in black moulding material to improve the appearance of switch, and to replace the temporary knob already instructed. For separate mounting, the hole in the instrument board is enlarged to 1.875 diameter to pass the new lever and enable switch to be fitted. A .125 wide spigot has been added to the switch casing to locate in the 1.875 diameter hole and the fixing centres and flange increased to suit. The support plate for grouped switches has been altered accordingly. DA.{Bernard Day - Chassis Design} | ||