VARIABLE BALANCE-POINT COUNTING DEVICE

A counting device is provided for counting statistically uniform manufactured parts, by weight, using a self-balancing scale with a variable balance-point. A known number of parts similar to those to be counted is placed on the balancing unit of a vertical balancing arm and the unknown quantity placed in the counting unit on an opposing horizontal arm. The design principle used is such that when balance equilibrium is reached, the vertical component of downward deflection of the horizontal arm bears a direct linear relationship to the proportionate weights, and so numbers, in the two pans. Modifications serve to enhance accuracy through reduction of friction and automatic read-out.