Weighing apparatus
AssigneeISCA Electronics Limited
InventorClifford Edwin Allen
Life of this patent
Estimating the term…
Abstract
Apparatus for weighing a continuous flow of powder material, including two separate weighing hoppers, a diverting valve for switching the flow from one hopper to the other and a closure valve for emptying each hopper. Each hopper is supported for small vertical movements by a suspension system including two pairs of crossed flexible wires at upper and lower levels, with the intersections of the wires lying on a vertical axis through a load cell which thus senses the gross weight of the hopper and its load. An automatic controller with a register totals the successive recorded gross or live weights of the hoppers and subtracts successive readings of the tare weights.
Claims7
Apparatus for weighing materials, comprising a hopper with an inlet opening at its upper end, and a controlled outlet opening at its lower end, means for supporting said hopper to permit limited vertical movement thereof, comprising an upper flexible tension element extending horizontally in one direction from a point on the hopper adjacent the upper end thereof, to a fixed point at the same level, and a lower flexible tension element extending horizontally in another generally opposite direction from a point on the hopper adjacent the lower end thereof to a fixed point at the same level, and an electro-mechanical transducer for sensing the weight of the hopper, situated at a position offset laterally from a vertical line through the centre of the hopper.
Dependencies are inferred from the claim text.