The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 1979
Filed:
Apr. 11, 1978
Gaylen O Kline, Tiffin, OH (US);
The National Machinery Company, Tiffin, OH (US);
Abstract
An improved knockout mechanism for forging machines or formers is disclosed in which the position of the knockout pin during the working operation of the machine is adjustably located by a tube nut threaded into the machine frame. In one embodiment, the tube nut is releasably locked in the adjusted position by a plate threaded onto the tube nut having a fulcrum on one side of the tube nut and a jackscrew on the other side at a location spaced from the tube nut greater than the spacing between the fulcrum and the tube nut so that a forced multiplication lever action is provided and secure locking is achieved without excessive jacking forces. In another embodiment, locking is provided by a lock nut threaded on the tube nut and connected to a fulcrum plate by a trunnion. A carriage is provided on the machine frame which supports means to operate the jacking screw and adjust the tube nut from locations accessible to the operator. The tube nut adjustment includes a drive gear and a driven gear automatically maintained in radial alignment by a flange on the drive gear engaging the driven gear on the tube nut. A scale located on the carriage cooperates with a locating flange on the drive gear to provide the operator with a visual indication of the adjustment of the tube nut.