Measuring and testing – Dynamometers – Responsive to force
Patent
1991-07-11
1993-02-16
Razavi, Michael T.
Measuring and testing
Dynamometers
Responsive to force
7386242, G01L 504
Patent
active
051860600
ABSTRACT:
A device for measuring the tension of a belt, which establishes three points of contact on the belt spaced lengthwise on the belt. A middle of the three contact points is a point of contact including a strain gauge. Two other points of contact are on an opposite side of the belt. The two other points of contact are moved toward the belt thereby to press the belt against the point of contact of the strain gauge. This is done with a manually rotatable button, whose possible torque is limited so as to limit the pressure by which the other two points of contact press against the belt. The button is in two parts rotatable relative to each other. The two parts are interconnected by balls disposed partly in one part and partly in a second part so that, with the balls in that position, the two parts rotate together. Springs urge the balls toward that position; but upon a predetermined torque being exceeded, the springs are not strong enough to hold the balls in that position, whereupon the parts can turn relative to each other.
REFERENCES:
patent: 4846000 (1989-07-01), Steinseifer
Razavi Michael T.
Shopbell Elizabeth L.
Sud Est Electro Mecanique S.E.E.M. (Sarl)
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