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).
Cross-sectional diagram of a Stewart Vacuum Tank with component annotations and dimensions.
| Identifier | WestWitteringFiles\N\2October1925-December1925\ Scan288 | |
| Date | 15th December 1925 guessed | |
| STEWART VACUUM TANK. SUCTION RESTRICTION TO SYSTEM AIR PETROL Two Springs Used. FLOAT DIAM = 3" FLOAT CHAMBER DIAM = 3.375" STROKE OF FLOAT = .875" A.J.L. | ||