Electric remote readout for fluid flow meter

Claim 1

A fluid flow meter with an electric remote readout, comprising a body, a non-magnetic member supported in said body and defining a space therewith and having a fluid-flow passage therethrough, a magnetic member movably disposed in said passage for movement in accordance with fluid flow in said passage, a spring operative on said magnetic member for yieldingly urging said magnetic member in one direction in said passage, a support on said body and disposed in said space and having an elongated recess faced toward said non-magnetic member, a cylindrical magnetic follower mounted on the exterior of said non-magnetic member and rotational thereon and for movement along with the movement of said magnetic member, an electric conductor and an electric resistor mounted on said support in said recess and adjacent said non-magnetic member and extending parallel thereto, a block on said follower and extending into said recess and slidably guided therealong without rotation, electric contacts mounted on said block for movement therewith and extending into respective sliding contact with said conductor and said resistor, an electric meter, and an electric connection extending between said conductor and said resistor and said meter for indicating the position of said contacts along said conductor and said resistor and thereby indicate the quantity of fluid flowing in said passage.