Weighing apparatus having multi-range motion transmitting levers

Details Weighing apparatus having multi-range motion transmitting levers Weighing apparatus having multi-range motion transmitting levers

1989-10-25

1990-07-03

Miller, Jr., George H.

Weighing scales

Preset

177212, 177256, G01G 2314, G01G 700, G01G 2108

Patent

active

049383000

ABSTRACT:
A weighing apparatus comprising a first self-contained weighing device (1) including a first farme (2), a first load-receiving member (5) connected by a parallel guide arrangement for movement from a normal no-load position relative to the first frame, a load-responsive device (10) for indicating the magnitude of an applied load as a function of the movement of the first load receiving member, and a first motion-transmitting lever (7) connected between the first load receiving member and the position-responsive device, characterized by the provision of a second load receiving member (16,28) to which the load to be measured is applied, and a second pivotally mounted motion-transmitting lever (17,30) connecting the second load receiving member, thereby to provide a resultant load range that is higher than that of the first weighing device. Thus, various increased load ranges may be achieved starting from a standard self-contained weighing apparatus. Moreover, a calibration weight (23) may be applied to the first load receiving member at a position other than that at which the load to be weighed is applied.

REFERENCES:
patent: 3299977 (1967-01-01), Melendy
patent: 4184556 (1980-01-01), Kunz
patent: 4184557 (1980-01-01), Kunz
patent: 4711314 (1987-12-01), Suzuki et al.
patent: 4722409 (1988-02-01), Kunz
patent: 4778016 (1988-10-01), Uchimura et al.

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