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 re-trial and modification of an instrument board dimmer switch.
| Identifier | ExFiles\Box 168a\1\ img055 | |
| Date | 1st December 1936 | |
| 6135 Rm{William Robotham - Chief Engineer}/Wst. from E.{Mr Elliott - Chief Engineer} WST c. Sg.{Arthur F. Sidgreaves - MD} Hs.{Lord Ernest Hives - Chair} Dy.{F R Danby} Da.{Bernard Day - Chassis Design} By/HD.{Mr Hayward/Mr Huddy} HPS.{Horace Percy Smith - Experimental Factory Mgr} E.3/HP.1.12.36. Instrument Board Dimmer Switch. With reference to your report Rm{William Robotham - Chief Engineer}/Wst.3/JH.18.11.36, we are still awaiting the re-trial of this unit with the coarser wire, which was instructed on the 12th October last, and which would tell us if the temperature is likely to be satisfactory with a coarser gauge. We have instructed this modified size of wire for the altered design of dimmer to RR.107, three of which units are being made up at the moment. The modified design of unit was first instructed on the 5th of November, and the quantity was increased to three sets on the 13th November. It is important that these should be finished as soon as possible. E.{Mr Elliott - Chief Engineer} | ||