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:
Jul. 11, 1978
Filed:
Sep. 03, 1976
Junzo Hasegawa, Obu, JP;
Yasutaka Hayashi, Nagoya, JP;
Yasuhiko Suzuki, Nagoya, JP;
Takashi Katoh, Kariya, JP;
Takahiko Tsunekawa, Aichi, JP;
Akira Tanaka, Kariya, JP;
Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, BOTH OF, JP;
Kabushiki Kaisha Toyota Chuo Kenkyusho, BOTH OF, JP;
Abstract
A method and apparatus for controlling the sliver thickness variation in a carding machine. The thickness variation of the sliver delivered from the carding machine is measured and an electrical signal corresponding to the thickness variation of the carded sliver is issued. A difference signal is created by comparing the above-mentioned electric signal, and a control pulse signal in accordance with the difference signal is intermittently created at predetermined time intervals, each of said time intervals being shorter than a time required for a length of the carded sliver which length corresponds to a long term variation of the carded slivers thickness. The supply amount of fiber tufts to the carding machine is intermittently adjusted for reducing the above-mentioned control signal toward zero by said control pulse signal at each of said time intervals.