Weighing scale with correction for non-linear spring

Details Weighing scale with correction for non-linear spring Weighing scale with correction for non-linear spring

1877-08-29

1978-10-24

Miller, Jr., George H.

Weighing scales

Self-positioning

Spring

177225, G01G 2326, G01G 300

Patent

active

041216784

ABSTRACT:
A weighing scale is illustrated having a compensation for correcting the non-linearities of a load supporting spring.
The load support is caused to deflect, and the load spring caused to be put in tension as a weight is put on the load support of the scale. The load spring has a non-linear response, which is effectively eliminated by the compressor. The compensator comprises a frictionless-type rotatable drum which is operatively connected between the load support and the frame of the scale. The drum is not journalled, but rather, is free to rotate about a vertical plane in response to the deflection of the load support. The drum has movable weights to adjust its rotational moment, whereby the counter-force upon the load support is caused to be varied and the non-linear response of the spring is caused to be substantially linearized.

REFERENCES:
patent: 3942597 (1976-03-01), Karp

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