F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
85/141, 85/5
F16B 31/02 (2006.01)
Patent
CA 1245884
TENSION INDICATING WASHER FOR SMOOTH AND IRREGULAR SURFACES ABSTRACT Disclosed is a one-piece indicator washer, adapted for use with a nut and bolt assembly to indicate in a predetermined manner predetermined amounts of tension in the bolt, comprising a dished annular member of a predetermined thickness having a concave first surface, a convex second surface, and a centrally disposed bolt receiving aperture, with the concave first surface defining a bearing surface proximate the outer periphery of the annular member, the convex second surface defining a bearing surface proximate the aperture, and the bearing surface proximate the outer periphery of the concave first surface including at least one relieved area. Means for indicating are integrally formed with and extend axially from proximate the outer peripheral edge of the dished annular member, the means for indicating including radially disposed axially extending reference means and circumferentially disposed arm means. The arm means for indicating include circumferentially disposed arm means, the arm means supported axially from the washer by one end of the arm means proximate to the outer periphery of the washer, with the free end of the arm means spaced from the reference means in a predetermined manner. Thus, when the washer is used with a support surface having irregularities and a force is applied to the washer, increased tension in the bolt tends to deflect the washer towards a planar condition, thereby causing the arm means to move in a predetermined manner to a predetermined position relative to the reference means. The relieved area precludes the surface irregularities from affecting the predetermined manner in which the arm means and the reference means indicate a predetermined measure of tension in the bolt.
456859
Illinois Tool Works Inc.
Meredith & Finlayson
LandOfFree
Tension indicating washer for smooth and irregular surfaces does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tension indicating washer for smooth and irregular surfaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tension indicating washer for smooth and irregular surfaces will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1248311