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:
Mar. 02, 1982
Filed:
Jan. 10, 1980
Dale A Wisebaker, Tiffin, OH (US);
The National Machinery Company, Tiffin, OH (US);
Abstract
A forging machine is disclosed which is provided with means to determine when an undersized or short blank is produced by the shear and to provide for the automatic rejection of such blank. Such short blanks can occur if the stock feed into the shear is insufficient. The illustrated embodiment includes a shear for progressively cutting blanks from the forward end of a piece of stock in which the shear is provided with a load cell in the stock gauge to determine when improper feeding has occurred. Such load cell includes a strain gauge and the signal produced by the strain gauge actuates an overstroke ejection which pushes the blank from the first working station through the transfer fingers so that it does not transfer to a subsequent work station. The overstroke is provided by a piston and cylinder actuator mounted on the ejector lever which operates in response to a signal that the blank in the work station is of improper size.