Zero indicator for plural scale systems

Details Zero indicator for plural scale systems Zero indicator for plural scale systems

1974-06-27

1976-02-17

Morrison, Malcolm A.

Registers

Transfer mechanism

Traveling pawl

177165, 177DIG3, G01G 9413, G01G 1314

Patent

active

039393321

ABSTRACT:
In a plural scale system such as a parts counter having a minor scale for measuring the weight of a known number of sample parts and a major scale for measuring the weight of an unknown number of parts to be counted, apparatus for indicating when the scales are zeroed. Circuitry is provided for automatically correcting the weight outputs from each scale for a limited amount of zero errors. A digital display indicates the corrected weight on one of the scales. When the corrected weight on any of the other scales is on zero, an indicator light associated with such scale is illuminated.

REFERENCES:
patent: 3709309 (1973-01-01), Williams et al.
patent: 3716706 (1973-02-01), Gray
patent: 3770069 (1973-11-01), Loshbough
patent: 3777828 (1973-12-01), Dietemeyer
patent: 3789202 (1974-01-01), Yamanaka
patent: 3797595 (1974-03-01), Yin et al.

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