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:
Apr. 20, 1982
Filed:
Nov. 06, 1980
Gerald W Karr, South Beloit, IL (US);
Robert E Page, Davis, IL (US);
Beloit Corporation, Beloit, WI (US);
Abstract
A core clamp mechanism serves to grip a core on a winder shaft by means of a plurality of ring elements and an expandable elastomer tube. A spacer sleeve abuts at one end with the free end of the core and receives, at its other end, a locking disc in preformed engagement spaces which cooperate with lugs formed on the disc. The elastomer tube is positioned upstream of the disc and supplied with air pressure for expansion of the tube against the disc which serves to compress the sleeve against the core. Shrinkage and other adjustments during the clamping operation are automatically accommodated by axial expansion of the tube under pressure. To remove a wound core, pressure is released through a valve from the tube and the disc moved clear from engagement with the sleeve. Cutouts corresponding to the disc lugs are formed on the sleeve so that, by aligning the cutouts with the disc lugs, the sleeve can be pulled off the shaft and the core removed and replaced.