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 design of a water boiling indicator, its thermometer, and the sourcing of a lamp fixing.
| Identifier | ExFiles\Box 175\4\ img044 | |
| Date | 1st July 1926 | |
| To DA{Bernard Day - Chassis Design}/EV.{Ivan Evernden - coachwork} from Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} X3875 Hs{Lord Ernest Hives - Chair}/Rm{William Robotham - Chief Engineer}2/LG1.7.26. Water Boiling Indicator. DA{Bernard Day - Chassis Design}/EV{Ivan Evernden - coachwork}2/M24.6.26. There is no increase in the size of the thermometer face with the addition of the electrical contact for indicating when the water in the radiator is boiling. With regard to the lamp fixing. We are still trying to obtain something which is really satisfactory from Messrs. Lucas, and will let you have a sample as soon as one comes to hand. Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer} | ||