Sewing – Special machines – Buttonhole
Patent
1980-08-01
1983-02-01
Hunter, H. Hampton
Sewing
Special machines
Buttonhole
D05C 1526
Patent
active
043709370
ABSTRACT:
A tufting machine having two rows of needles 1,2 which depend from a respective needle bar 3a, 3b carried by a support member 3. Support member 3 is slidably mounted in a carrier 4 which is vertically reciprocal by a mechanism 5. Yarn is fed from a creel through the needles 1,2 and is engaged by loopers 7,8 where it is held while the needles withdraw from the primary cloth 15.
In order to change the design imparted by the machine there is provided a mechanism for increasing or decreasing the warpwise length of the backing cloth or fabric between the two rows of needles. The mechanism includes a roller 13, which is displaceable in a direction transverse to the axis of the roller, and two retaining bars 11, 12, the fabric passing around the roller and retaining bars to define a loop.
REFERENCES:
patent: 3585948 (1971-06-01), Cobble
patent: 3650228 (1972-03-01), Lynch
patent: 3865059 (1975-02-01), Jackson
patent: 4226196 (1980-10-01), Booth
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