EP 1502979 B1 20080305 - Method to control the weft transfer in a loom
Title (en)
Method to control the weft transfer in a loom
Title (de)
Verfahren zur Schlussfadenüberwachung in einer Webmaschine
Title (fr)
Procédure de contrôle de fil de trame dans un métier à tisser
Publication
Application
Priority
EP 03017041 A 20030728
Abstract (en)
[origin: EP1502979A1] A weaving loom has a blade (1) with a light sensor (10) monitoring the position of a weft thread (4) during insertion. After the thread has been inserted and captured by a post (3), the blade advances the thread to the end-stop (7). During the blade advance the weft thread passes through the light sensor beam, causing a change in the quantity of light detected which is then converted into a signal pulse. If the signal pulse is absent at a pre-determined moment, or if its amplitude is outside a given range, the weft thread is faulty. The measurement is taken when insertion of the weft thread is complete in a projectile weaving loom or a rapier loom.
IPC 8 full level
D03D 51/34 (2006.01)
CPC (source: EP)
D03D 51/34 (2013.01)
Designated contracting state (EPC)
BE CH DE IT LI SE
DOCDB simple family (publication)
EP 1502979 A1 20050202; EP 1502979 B1 20080305; DE 50309321 D1 20080417
DOCDB simple family (application)
EP 03017041 A 20030728; DE 50309321 T 20030728