Load indicating apparatus having a hydraulic sensing unit and co

Details Load indicating apparatus having a hydraulic sensing unit and co Load indicating apparatus having a hydraulic sensing unit and co

1979-07-02

1981-03-31

Woodiel, Donald O.

Measuring and testing

Volumetric content measuring

73143, G01L 126

Patent

active

042585660

ABSTRACT:
Load indicating apparatus in which a hydraulic load sensing unit is pivotally connected by coupling pins respectively with opposed members capable of relative movements under applied load forces, one of the coupling pins comprising an electronic load sensing unit in the form of a hollow pivot pin structure with internally mounted electrically interconnected strain gages operative in response to the applied load forces to generate an output signal. The pivot pin structure of the electronic load sensing unit is circumferentially oriented to a predetermined fixed operative position by a tool having the same coupled pivotal length as the hydraulic load sensing unit, and which is connectable between the opposed members in place of the hydraulic unit, said tool having a shoulder for initially engaging and locating an anchor bar on an adjacent surface of the associated opposed member in a position to circumferentially retain the hollow pin structure in a correct operating position, whereupon the anchor bar is permanently secured as by welding, the tool removed and the hydraulic sensing unit connected.

REFERENCES:
patent: 3004558 (1961-10-01), Crane
patent: 3695096 (1972-10-01), Kutsay
patent: 3999427 (1976-12-01), Decker et al.
patent: 4161117 (1979-07-01), Decker et al.
patent: 4162629 (1979-07-01), Howard

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