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:
May. 31, 1977
Filed:
Jul. 13, 1976
Applicant:
Inventor:
Kenzo Hashimoto, Kyoto, JA;
Assignee:
Nishimura Seisakusho Co., Ltd., Kyoto, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H / ;
U.S. Cl.
CPC ...
242 / ;
Abstract
Apparatus for holding cylindrical winding cores comprises a plurality of core holders and a plurality of friction collars are mounted alternately on a single hollow shaft under axial pressure, each of friction collars being allowed to be axially moved and constrained in rotation and each of said core holders having radial expansible means which are radially expanded by an air pressure supplied through the hollow shaft to come into pressure engagement with the inner surfaces of cylindrical winding cores disposed about core holders.