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).
Letter requesting modified Vauxhall units with specific technical requirements.
| Identifier | ExFiles\Box 156\1\ scan0301 | |
| Date | 27th October 1937 guessed | |
| -2- tested and would like you to send us two units as outlined above, i.e. Standard Vauxhall unit (no ball valve) with - (1) stiffened bottom plate. (2) .064 bleed hole. (3) Set to open at 80°C ± 1°C and to be full open at or below 90°C. If you find that you can use a thicker gauge for the frame and bottom plate, we would like two similar further units with this modification incorporated. We presume that the corrugation in the bottom plate does not affect the soldering of the bellows to same, we would like your opinion on this. Yours faithfully, for ROLLS-ROYCE LTD. | ||