Apparatus for controlling shed formation in a travelling-wave lo

Details Apparatus for controlling shed formation in a travelling-wave lo Apparatus for controlling shed formation in a travelling-wave lo

1976-10-04

1978-09-05

Jaudon, Henry S.

Textiles: weaving

Weft manipulation

Weaving with stationary weft supply

D03D 4726

Patent

active

041112385

ABSTRACT:
An improved technique for presetting the adjustment cams that move the heddles of a travelling wave loom between their upper and lower shed-forming positions as described. The succession of control cams or guiding members, which engage actuating butts on the lower ends of the successive heddle members in the weaving region of the loom, are carried by a first endless conveyor; the succession of guiding members includes spaced adjustment portions including a slider element having three superposed cam track junction portions. A control section in the form of a travelling endless program member resembling a second endless conveyor upstream of the weaving region is selectively coupled to a link which engages a roller supported on the slider of each adjustment portion of the succession of guiding members. The link is movable into three positions corresponding to the three positions of adjustment of each slider. Facilities are described for securing each slider in its adjusted position, and for indicating an alarm and/or a loom stopping mechanism if the slider inadvertently moves out of its adjusted position prior to reaching the weaving region.

REFERENCES:
patent: 720181 (1903-02-01), Salisbury
patent: 3414021 (1968-12-01), Malchair
patent: 3749135 (1973-07-01), Linka

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