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:
Jun. 29, 1993
Filed:
Feb. 06, 1991
Hartmut Dropczynski, Dormagen, DE;
Ernst G Urban, Neuss, DE;
Jagenberg Aktiengesellschaft, Dusseldorf, DE;
Abstract
A cradle-type winding machine has a pair of driven rollers receiving the sleeves on which the web is to be wound in a winding bed and a weakening device perforating the web upon temporary halting of the latter. A support can be raised into the winding bed and carries both a clamping roller and a swingable blade, the former being effective to clamp the web against one of the support rollers for the winding of heavy paper stack while the latter can be swung into a position enabling the tearing of light paper stack. When heavy paper stack is used, a perforator along the path of the web before it encounters the support rollers against which it is to lie is provided to perforate the web across its width and form a weakened zone on opposite sides of which adhesive strips are provided.