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. 09, 1987
Filed:
Sep. 06, 1985
Hisashi Kanda, Toyama, JP;
Susumu Nario, Toyama, JP;
Kazuhiko Morifuji, Toyama, JP;
Yuzo Kawada, Toyama, JP;
Takashi Sakai, Toyama, JP;
Takeshi Kawada, Toyama, JP;
Katsura Shimada, Toyama, JP;
Mitsuo Tsuneda, Toyama, JP;
Mitsubishi Acetate Co. Ltd., Tokyo, JP;
Mitsubishi Rayon Company, Ltd., Tokyo, JP;
Abstract
A method and device for forming a warp beam of uniform diameter by feedback control of winding tension, in which a signal obtained from local winding tensions, each corresponding to a tension of a yarn at a certain widthwise position, are utilized for adjusting the position and width of a reed so that distribution of the warp on the beam is improved and an intra-beam diameter difference is compensated. One of the signals obtained from the local winding tensions is utilized for adjusting the rotational speed of rollers so that an inter-beam diameter difference is compensated. Thus, a warp beam without intra- or inter-beam diameter difference can always be produced.