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).
Blueprint diagram for a flow meter to measure petrol consumption.
| Identifier | ExFiles\Box 178\1\ img051 | |
| Date | 21th November 1925 guessed | |
| FLOW METRE FOR MEASURING PETROL CONSUMPTIONS. A.{Mr Adams} TWO WAY TAP B. FUEL TANK. C. THREE WAY TAP X. 500cc. PIPETTE Y. 120cc. PIPETTE B. Y 120 CC'S. 500cc. X. A C To CARB. WHEN TAP 'A' IS TURNED ON, THE CARB DRAWS ITS SUPPLY DIRECTLY FROM TANK 'B'. SIMULTANEOUSLY MEASURING GLASS 'X' (OR 'Y') IS FILLED AS REQUIRED. WHEN TAP 'A' IS TURNED OFF, CARB IMMEDIATELY DRAWS ITS SUPPLY FROM CYLS, 'X' (OR 'Y') AS REQUIRED. | ||