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).
Simplification of the petrol supply and reserve system using the autovac tank and a needle valve.
| Identifier | WestWitteringFiles\T\January1929-February1929\ Scan092 | |
| Date | 30th January 1929 | |
| HS.{Lord Ernest Hives - Chair} E.Y. ) FROM R.{Sir Henry Royce} (struck through) DA.{Bernard Day - Chassis Design} EV.{Ivan Evernden - coachwork} (At Le CanadelHenry Royce's French residence.) (struck through) C to SQ. WOR.{Arthur Wormald - General Works Manager} C. (struck through) PN.{Mr Northey} CWD (struck through) SECRET. ORIGINAL. R2/M30.1.29. REC'D AT WW. 4.2.29. SS.{S. Smith} PETROL SUPPLY AND RESERVE. X.7460 X.7510 Everything should be made as simple as possible but it must achieve its object. I agree that it will be better to delete the double level two filter scheme in the rear tank. It has occurred to me that owing to the use of the vacuum pump we do not require much capacity in the autovac tank. Therefore we could use this as the reserve. Supposing this is as good an idea as I think we could use the needle valve arrangement to by-pass a stand pipe in the autovac tank. This gets over both the troubles - i.e. if running out difficulty of restarting, and of running out of supply. If it is agreed will DA{Bernard Day - Chassis Design} EV.{Ivan Evernden - coachwork} get it going. I say the needle valve because it is so obvious if it is open or closed, especially if fitted with a tumbler like a lubricator. R.{Sir Henry Royce} | ||