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. 01, 1978
Filed:
Feb. 17, 1977
Applicant:
Inventors:
Masateru Tokuno, Nishinomiya, JP;
Hisahiro Tanigawa, Koganei, JP;
Masayoshi Kaneko, Yokohama, JP;
Noboru Shinmura, Yokohama, JP;
Assignees:
Rengo Kabushiki Kaisha (Rengo Co., Ltd), Osaka, JP;
Nippon Riraiansu Kabushiki Kaisha (Japan Reliance Electric Ltd.), Yokohama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B / ; B26D / ;
U.S. Cl.
CPC ...
364475 ; 83 74 ; 318600 ;
Abstract
A method for controlling the speed of a rotary cutter to cut a continuously ed web accurately into predetermined lengths. A desired cutting length and the circumference of the rotary cutter are preset. The web speed as detected is multiplied by a coefficient equal to the cutter circumference divided by the cutting length. The resultant signal is compared with the cutter speed as detected, and, if there is any difference, the cutter speed is corrected for accurate cutting.