Low range automatic weighing device

Details Low range automatic weighing device Low range automatic weighing device

1982-07-06

1984-09-11

Miller, Jr., George H.

Weighing scales

Self-positioning

Repositioning in response to deflection under load

177248, G01G 138, G01G 126

Patent

active

044704720

ABSTRACT:
A weighing device is disclosed which comprises a frame, a pan element for supporting a load to be weighed, channel members connected to the pan for retaining a plurality of weight elements in a vertically movable manner, a motor supported within the frame, a shaft member operatively connected to and extending from the motor and a plurality of support members each adapted to receive and lift one of the weight elements. Included are circular concentric cam tracks rotating with the shaft member, each of the tracks being positioned under a plurality of the support members. A switch is provided for energizing the motor when the pan is depressed by a load. The motor turns the shaft member and guides the concentric cam tracks alternately into contact with successive support members in a step-by-step manner and thereby lift a corresponding number of the weights substantially equal to the weight of the load.

REFERENCES:
patent: 4411328 (1983-10-01), Hubbard

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