| 摘要 |
A distributing unit synchronized with the shed-forming operation of a jet loom is positively coupled with a rocker arm carrying two insertion nozzles which are respectively aligned with the shed during alternate operating cycles, this unit temporarliy admitting high-pressure air to the currently aligned nozzle and to an associated thread clamp for the release of a weft yarn engaged thereby. The distributing unit comprises two interconnected outer disks bracketing an inner disk on a fixed axle on which the outer disks are held substantially immovable by a friction brake; the inner disk is limitedly rotatable by a cam-operated lever swingable about that axle and, in each of two working positions, connects two inlets for high-pressure air on one outer disk to respective outlets on the other outer disk leading to the currently aligned nozzle and to the associated thread clamp. The lever is connected with the inner disk by a stud which passes through a cutout in one of the outer disks having a width corresponding to the swing of the stud, thereby performing an initial angular adjustment of the outer disks relative to the inner disk. |
