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:
Sep. 12, 1978
Filed:
Apr. 15, 1977
Yoshihisa Suzuki, Nagoya, JP;
Katuaki Sugiura, Okazaki, JP;
Osamu Suzuki, Obu, JP;
Ichiro Tashiro, Nagoya, JP;
Abstract
Disclosed is an open-end spinning machine and a method of stopping the same. The machine comprises: feed rollers, for supplying fibers to a combing roller, connected to a main power source via a clutch; a spinning rotor, for collecting the fibers combed by the combing roller into a yarn and for twisting the yarn, connected to another power source via a clutch; a draw off roller and a press roller urged toward the draw off roller, for withdrawing the yarn from the spinning rotor, connected to the main power source via an endless driving belt and to a brake; a traverse guide, for traversing the withdrawn yarn along a bobbin supported by a pair of cradle arms, connected to the main power source via a clutch and to a brake; a winding drum, for frictionally driving the bobbin to wind the yarn around the bobbin and form a cheese, connected to the main power source and; a controlling device, for controlling the brakes and clutches according to a predetermined program, by which the traverse guide is stopped when both the feed rollers and the spinning rotor are turned off, but before both the draw off rollers and the winding drum are stopped. By utilizing this machine and method, the number of yarn breakages occurring during the starting operation is decreased.