(under subclass 232) Devices wherein means is provided for manually or automatically varying the ratio of transmission of motion from the expansible chamber means to the indicating or registering means. Such variation is usually for the purpose of correcting the indicated volume for temperature and pressure variations or to change the indication from one system of units to another, such as from U.S. gallons to Imperial gallons, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227, for area-velocity integrating type.
861.81+, for turbine type with regulating adjustment.
