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:
Feb. 10, 1987
Filed:
Dec. 09, 1985
Fritz Gehring, Lindau, DE;
Lindauer Dornier Gesellschaft mbH, Lindau, DE;
Abstract
A weft thread brake for shuttleless weaving machines includes two leaf springs or lamellae which rest against each other in a spring elastic manner. The thread, such as a weft thread, passes through a passage formed between the two leaf springs as the thread is being pulled off a supply reel or bobbin whereby the two leaf springs apply a braking action to the thread. In their basic position the leaf springs exert a first step of a defined braking action on the thread. Additionally, controllable members are arranged for cooperation with the leaf spring or springs to increase or decrease the pressure of the two leaf springs toward each other. Electromagnets, compression elements, or the like, are suitable for this purpose, whereby the actuation of these control members increase the braking action even to the extent of clamping the weft thread between the leaf springs if desired.