A device for detection of the voltage drop of a wire of the chain, in a weaving loom job a

摘要

P the invention relates to a device for detecting a drop in voltage of a warp yarn in a weaving loom. The warp threads 5 and 5 ′ are carried by the heddles 3 and 3 ′ resting on the rods 2 and 2 'by means of the loops 4 and 4', which are made of electrically conductive material and which form with the bead wire 2, 2 'of the switches 14a which is normally open when the rail 2, 2 ′ is in its lower position. The present invention applies to the weaving looms. / p