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).
Hand-drawn schematic of a fluid tank and associated pipework including ball valves.
| Identifier | WestWitteringFiles\U\2January1930-September1930\ Scan174 | |
| Date | 17th June 1930 | |
| Ball Valve. Balance Pipe Pressure Pipe Ball Valve. long leg. Fig. 1. ORIGINAL Vent as a R.R.M. Tank As close as possible Press & Filler Cut down. | ||