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 water temperature regulator and thermostat for the 40/50 HP chassis.
| Identifier | ExFiles\Box 78\1\ scan0028 | |
| Date | 25th September 1919 | |
| x3563 X.3652 E1/G25.9.19. To DA.{Bernard Day - Chassis Design} from E.{Mr Elliott - Chief Engineer} Copy to CJ. " " BN.{W.O. Bentley / Mr Barrington} " " EH. " " EFC. RE WATER TEMPERATURE REGULATOR - 40/50 H.P. CHASSIS. We send you herewith drawing No. 1143 shewing the above. You will recollect that particulars of the thermostat given on this drawing have been sent to Mr. Olley in America who, by Mr. Royce's instructions, is placing an order for 500 with the Sylphon Company. The parts that will be supplied by America are the theremostat unit, completely assembled and filled with end plates, as shewn on LeC.1143, and the thin hexagon fixing nut for same. In accordance with Mr. Royce's wishes, would you kindly instruct at the earliest possible moment, the material shewn on LEC.1143. We shall in due course, send you a scheme shewing how the byepass pipe should be carried from the water regulator tower down to the suction pipe on the pump. E.{Mr Elliott - Chief Engineer} | ||