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 diagram of a petrol level measuring device.
Identifier | WestWitteringFiles\D\January1920\ Scan24 | |
Date | 2nd July 1920 | |
HAND PUMP ON CHASSIS ABOUT 4" VV GALLONS 18 16 14 12 10 8 6 4 2 0 By delivering a small quantity of air with a gentle stroke of the pump the U tube is made to indicate the difference in pressure due to the depth of the petrol & the column of coloured water thus records the quantity of petrol in the tank. COLOURED WATER PETROL TANK PETROL LEVEL MEASURING DEVICE | ||