COMMODITY CONTROL OF SHUTTLE-FREE LOOM Russian patent published in 1995 - IPC

FIELD: textile mechanical industry. SUBSTANCE: commodity control has worm 2 mounted onto driving shaft 1. The worn is connected rigidly with end cam 3 mounted for interaction with roller 8 mounted onto motionless axis 7. Profile of the cam is formed by sections connected by transient curves. When roller 8 passes along some part of the cam profile, angle of inclination of which is larger than angle of inclination of screw line of the worm, doffer begins to rotate and advances material to reed at surf of weft cloth. When the roller passes through the second section of the cam, doffer rotates in opposite direction and removes cloth which is reeled upon commodity shaft. EFFECT: reduced breakage of threads. 4 cl, 2 dwg