Geometrical instruments – Area integrators – Electrical
Patent
1982-05-03
1984-02-28
Ruehl, Charles A.
Geometrical instruments
Area integrators
Electrical
33179, 7386242, G01B 310, G01L 506
Patent
active
044334869
ABSTRACT:
An instrument for measuring the girth of compressible objects comprising a graduated tape and a one-piece tension reading member. The tension reading member is substantially planar and comprises first and second sections interconnected by a reduced cross-sectional bendable hinge portion which permits relative movement of the first and second sections in the plane of the member. The first section is secured with the tape and controlled by grasping and drawing the tape with one hand. The second section is drawn in an opposite direction by the other hand, thereby tensioning the tape and deforming the hinge portion. The tension applied to the tape is indicated by the relative positions of the first and second portions and preferably by aligned scales on each. The first portion has an arm which is extensible within a corresponding cutout in the second section. The arm has an expanded end which engages a pair of stops protruding into the cutout to revent overstressing of the hinge portion.
REFERENCES:
patent: 650389 (1900-05-01), Hatfield
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patent: 1011628 (1911-12-01), Klein
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patent: 1238841 (1917-09-01), Snider
patent: 1305780 (1919-06-01), Dilks
patent: 2157723 (1939-05-01), Wilson
patent: 3370458 (1968-02-01), Dillon
patent: 3432930 (1969-03-01), Ljungberg
patent: 3744140 (1973-07-01), Kyrk
Novel Products, Inc.
Ruehl Charles A.
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