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).
Standardisation of a modified radiator thermometer dial for various car models.
| Identifier | ExFiles\Box 175\4\ img293 | |
| Date | 4th August 1937 | |
| To By.{R.W. Bailey - Chief Engineer} from Rm{William Robotham - Chief Engineer}/Std. c. By/RD. Rm{William Robotham - Chief Engineer}/Std.2/AP.4.8.37 6003 Referring to the Standardisation Sheet No.1328 which we have issued for the Ph.III. radiator thermometer with dial modified to have red line at 106°C. etc - we see no objection to this dial being standard on Bentley and 25/30. instruments if this is desired, in order to make the same instrument common to all cars. The steam valve blow off pressures on all cars is approximately the same i.e. 2.5 lbs/sq.in. Rm{William Robotham - Chief Engineer}/Std. | ||