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:
May. 22, 1979
Filed:
Feb. 02, 1978
Juan Amengual, Palma de Mallorca, ES;
AB IRO, Ulricehamn, SE;
Other;
Abstract
A weft thread monitoring device comprises a carrier element, such as a push rod, that is moved in one direction relative to the loom frame by beating-up motion of the reed and is biased in an opposite return direction. A feeler that is carried for bodily motion by the carrier element and is movable relative to it has a sensing arm that is engaged by a weft thread during beat-up and a controlled arm cooperable with an actuator for a cut-off switch. The feeler is biased relative to the carrier element towards an actuating position in which its controlled arm can engage the actuator during return motion of the carrier element and move the actuator to stop the loom. However, if the sensing arm is held captive by a properly laid and beaten-up weft thread, the feeler is maintained, against its bias, in a position in which the controlled arm clears the actuator during carrier element return motion, and at the conclusion of such return motion the sensing arm is snapped out of engagement with the weft thread.