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 thermostat arrangement on a Packard car, including operational data and a sketch of the tube.
| Identifier | ExFiles\Box 127\1\ scan0055 | |
| Date | 2nd June 1919 | |
| X.435 X.3565 X.1364 To R.{Sir Henry Royce} from EH. c. to CJ. c. to BN.{W.O. Bentley / Mr Barrington} c. to E c. to DA.{Bernard Day - Chassis Design} EH2/LG2.6.19. RE THERMOSTAT ARRANGEMENT ON "PACKARD" CAR Attached herewith is a sketch which shews the thermostat arrangement on the Packard Car. The butterfly valves are arranged in this thermostat so that the circulation through the radiator is entirely stopped until the thermostat warms up and opens the valves. The thermostat operates as follows:- Up to 55°C - movement nil. " " 58°C - " .125" " " 61°C - " .250" " " 65°C - " .650" Particulars of the tube are as follows:- Sketch Text: 14 Sections Dimension: 2.450 Dimension: 2.000" Footer (upside down): R.R. 235A (500 T) (S.D. 408. 25-4-17.) Bm. 2/156/13. | ||