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:
Aug. 03, 1976
Filed:
Nov. 10, 1975
James D Linthicum, Tiffin, OH (US);
Robert E Wisebaker, Tiffin, OH (US);
National Machinery, Tiffin, OH (US);
Abstract
A control system is disclosed for a hot forging machine which is supplied with lengths of stock. The system provides automatic rejection of workpieces cut from the rearward end of one length of stock and the forward end of a subsequent length of stock. The system includes a sensor which laterally deflects the rearward end of a length of stock as such rearward end approaches a control point to produce a signal to reset the system. As the forward end of the subsequent length of stock passes the control point, a second signal is generated to actuate the stock movement measuring system. Stock movement is measured by a measuring roller which engages and is turned by the stock as it moves toward the cutter. The rotation of the measuring roller drives a pulse generator which supplies a signal to a counter. When a first predetermined number of pulses have been generated following the movement of the forward end of a length of stock past the control point, it is known that a first predetermined length has passed and rejection of workpieces is established. When a second predetermined number of pulses have been counted to indicate passage of a second predetermined length, the normal cutter operation is re-established to terminate rejection of workpieces.