Measuring instrument for compressible objects

Geometrical instruments – Area integrators – Electrical

Patent

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Details

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
patent: 740943 (1903-10-01), Summersby et al.
patent: 1011628 (1911-12-01), Klein
patent: 1096206 (1914-05-01), Thomas
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

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