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Two pairs of reciprocating pistons are selectively driven by a volume of fluid to be measured. The pairs are perpendicular to one another and connected to a crank for converting the reciprocating motion into rotary motion to magnetically drive a recording means. A valve is driven by the crank for se

Two pairs of reciprocating pistons are selectively driven by a volume of fluid to be measured. The pairs are perpendicular to one another and connected to a crank for converting the reciprocating motion into rotary motion to magnetically drive a recording means. A valve is driven by the crank for selectively controlling the flow of the liquid into the piston bores. A conical member limits the stroke of one set of the pistons thereby adjusting the stroke of the meter. The member has a bimetal unit which automatically adjusts the stroke in response to the temperature of the liquid.

대표청구항 ▼

In a liquid volume meter having a housing (13) through which a volume of liquid to be measured passes, the housing formed with an inner chamber including an inlet (11) and an outlet (12) and having a drive means for driving a recording means in response to the liquid flow through the housing, said d

In a liquid volume meter having a housing (13) through which a volume of liquid to be measured passes, the housing formed with an inner chamber including an inlet (11) and an outlet (12) and having a drive means for driving a recording means in response to the liquid flow through the housing, said drive means comprising: (a) first reciprocating means comprising a first pair of opposing pistons connected by a first rod located within a first bore in the housing; (b) second reciprocating means comprising a second pair of opposing pistons connected by a second rod located within a second bore in the housing; (c) rotary valve means for successively connecting the inlet and outlet to the first and second bores, the liquid flow through said housing as controlled by said valve means imparting a reciprocating motion to said first and second reciprocating means; (d) transformation means connected to said first and second reciprocating means for converting the reciprocating motion into a rotary motion for driving the recording means; (e) stroke adjusting means for adjusting a stroke of the reciprocating motion by limiting the stroke of one of the reciprocating means by limiting the stroke of the first rod wherein the first and second rods are connected to the transformation means and the stroke of the second rod is unaffected by said stroke adjusting means and said first rod has an opening therein, the adjusting means including a conical member supported by the housing and projecting into said opening and means for adjusting the depth of the conical member projecting into said opening whereby the stroke of said first rod is adjustable depending upon the penetration of the conical member into said opening.