Self-contained stud tensioner and tightener device

摘要

A self-contained tensioner and tightener device for a threaded stud characterized in that an expandable hydraulic tensioning device is disposable between a locking nut and a foundation surface from which the stud projects, and the locking nut and the elements of the tensioning device when removed from the stud are necessarily displaced onto and retained by a take-up finger extending from the tensioning device coaxial with the stud, whereby the entire tensioning and tightening assembly is self-contained and none of its parts necessarily separate from the combination when the combination is removed from the stud.