Abstract: This invention pertains to an improvement in box joint tools and particularly for reducing play resulting from wear of the members forming the box joint. The box joint is formed in the usual manner. This improved joint is used when or where wear develops or may be utilized with new tools at the time of assembly. A first portion outer member of the box joint is machined to provide a counterbore and an enlarged bore in this member portion. A counterbore is also formed in the second outer member portion and extends to about one thirty second of an inch from a central jaw tongue portion. This counterbore provides a flexure portion with a smaller bore axially coincidental with the axis of the central portion. A pivot pin bushing has a threaded bore and is sized to be a press fit in the formed counterbore and enlarged bore of the first outer member. This bushing is mounted in the first outer member and the shank portion extends into the tongue portion of the central jaw.

Abstract: This invention pertains to a box joint for use with plier-type tools and the like. These tools are pivotally retained with two members having handles and jaws. The box joint provided has a first member with a midportion of conventional construction and with an aperture through which the shank of a shoulder screw is passed. A second member has its outer wall portions formed with one wall integral with and extending from the handle to the jaw portion and the other outer wall having a transverse opening therethrough with each end of this opening made as a shouldered or stepped end. The opening and the stepped end configuration has the narrower opening at the inner portion and through this narrower opening the midportion of the first member passes when and while normal to its closed or in-use condition.

Abstract: A plier-type wire cutting tool providing a shear cut of wire such as is used by orthodontists. This wire is used with appliances mounted in the mouth of a patient. This plier is a box-type tool with pivotally connected jaw and handle portions with one jaw having a leaf spring secured to said jaw. This leaf spring is bent at right angles with the short leg of the leaf spring mounted in a slot in the jaw. The other leg of the leaf spring is disposed so as to be movable in a relief formed in this jaw and with this extending leaf portion engaging and retaining said wire that is between the shelf of the opposing jaw and the leaf spring. The cutting edges of the tool are moved toward, to and past each other to cut a wire therebetween with the severed end gripped by the leaf spring and shelf until the jaw ends are moved apart.