Textiles: weaving – Special-type looms – Open-back shed
Patent
1984-07-13
1986-04-01
Jaudon, Henry S.
Textiles: weaving
Special-type looms
Open-back shed
D03D 3700
Patent
active
045791490
ABSTRACT:
With the circular loom, a plurality of partial healds are arranged circularly around a main shaft of the loom, and each comprises a plurality of inner and outer yarn guiding eyes for the guidance of a part of the two systems of warp yarn distributed all around, and which are given a countercurrent up-and-down motion for the formation of the weaving or travelling shed by sequential means, which engage a plate cam on and revolving with said main shaft of the loom. The inner or outer yarn guiding eyes are connected together by band means, each of which is guided over upper or lower guide rollers. The sequential means comprise at least one two-armed control lever for the activation of the countercurrent up-and-down alternating motion on the yarn guiding eyes of each partial heald, the control lever being supported and turning on a fixed fulcrum, and being, with the end of one of its arms, in operative connection with a cam on the plate cam, and which is fastened with the end of its other arm to the inner strand of the band means of the respective partial heald. These measures permit the construction of a shaft driving device which is practically maintenance-free, of high operating frequency and functionally reliable.
REFERENCES:
patent: 951449 (1910-03-01), Petersen
patent: 1889076 (1932-11-01), Mutter
patent: 2487148 (1949-11-01), Latieule et al.
patent: 4479517 (1984-10-01), Plammer
Dubno Herbert
Jaudon Henry S.
Ross Karl F.
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