The Babcock & Wilcox Company

Timothy A Brandsberg

Ronald C Pillow

A stud/bolt load gauge assembly. A gauge screw threadably engaged in a stud or bolt has a top, belleville, overload, and bottom washer mounted between the head of the bolt and the head of the gauge screw. All of the washers are movable until axial stress on the bolt equal to the minimum desired load causes the underload gap to be taken up by the gauge screw. Then only the overload washer is movable. The overload washer becomes immovable between the top and bottom washers when the bolt load is increased beyond the desired maximum load, causing compression of the belleville spring washer to a substantially flat state.

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Goode, VA, United States of America

Timothy A Brandsberg