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:
Jan. 29, 1991
Filed:
Jul. 25, 1989
Henry Shaw, Vleteren, BE;
Roger Ligneel, Beselare, BE;
Picanol N.V., , BE;
Abstract
A device for supplying weft threads in weaving machines with minimal twisting includes at least one rotatable set of thread supplies and one rotatable set of thread preparation mechanisms per set of thread supplies. The sets of thread preparation mechanisms are rotatable together with corresponding sets of thread supplies forming a rotatable assembly to prevent the weft threads from becoming tangled with one another as the sets rotate, for example to bring one of the thread preparation mechanisms adjacent a repair mechanism, or to change threads. A mechanism is further included which converts the rotational motion of the rotatable assembly into a translational motion essentially in the direction of the axis around which the assembly turns. By a suitable choice of the mechanism, lengthening of the thread after rotation can be fully compensated for by the translational motion of the thread supplies and of the corresponding thread preparation mechanisms.