Three force balanced mechanism

Details Three force balanced mechanism Three force balanced mechanism

1983-11-08

1986-05-06

Chiesa, Richard L.

Measuring and testing

Dynamometers

Responsive to force

73701, 7386252, G01L 108

Patent

active

045863881

ABSTRACT:
In a three force balanced mechanism comprising a floating pivot, an input force transmitting member, a feedback force transmitting member, one end of the input force transmitting member and one end of the feedback force transmitting member pivot in different directions, a flexible span setting member inclined with respect to the input force transmitting member, one end of the flexible span setting member being wound about or unwound from the floating pivot, there are provided detecting means for detecting the input force, restoring means responsive to the output of the detecting means for applying a restoring force to the feedback force transmitting member, and spring means for varying a force acting upon the input force transmitting member or the feedback force transmitting member in accordance with the movement of the free end of the span setting member. With this improved meter zero point shift can be automatically compensated for thereby eliminating zero point adjustment at the time of varying the measuring range.

REFERENCES:
patent: 2686893 (1954-08-01), Markson
patent: 2993370 (1961-07-01), Nye, Jr.
patent: 3084550 (1963-04-01), Bowditch
patent: 3106094 (1963-10-01), Gallo
patent: 3175393 (1965-03-01), Sachers
patent: 3274833 (1966-09-01), Ollivier et al.
patent: 3282110 (1966-11-01), Weir
patent: 3401561 (1968-09-01), Cook
patent: 3564923 (1971-02-01), Nudd, Jr. et al.
patent: 3878725 (1975-04-01), Gaertner
patent: 4502333 (1985-03-01), Shiga et al.

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