Rolls-Royce Archives
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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
  
  


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