F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/5
F16B 33/04 (2006.01)
Patent
CA 1245885
TENSION INDICATING WASHER ABSTRACT Disclosed is an indicating washer for indicating the tension force being applied thereto, comprising an annular concave member of a predetermined thickness with a centrally located aperture and having an outer periphery, first arm means including a first arm portion disposed proximate the outer periphery of the annular member and extending generally parallel to the axis of the annular concave member in the direction of the outer surface of the annular concave member, and including a second arm portion extending perpendicular from the first arm portion, with the second arm portion curved along its length to substantially conform to the curvature of the outer periphery of the annular concave member and having a length approximately equal to one-half the circumference of the annular concave member. A second arm means has an arm portion disposed proximate the outer periphery of the annular concave member which extends generally parallel to the axis in the same direction as the first arm portion of the first arm means, the second arm means being disposed diametrically opposite to the first arm means, wherein when a force is applied to the annular member in use and the amount of the force increases, the concavity of the annular member will change accordingly, and thereby cause a distal end of the second arm portion of the first arm means to move downwardly and radially outward and the second arm means will move upwardly and radially inward such that the distal ends of the second arm portion and the second arm means will indicate in a predetermined manner by their position relative to each other the predetermined amount of force being applied to the concave annular member.
459193
Illinois Tool Works Inc.
Meredith & Finlayson
LandOfFree
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