Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Indefinite or running length flexible strand – rod – tube – or...
Patent
1974-12-23
1976-02-10
Drummond, Douglas J.
Adhesive bonding and miscellaneous chemical manufacture
Surface bonding means and/or assembly means therefor
Indefinite or running length flexible strand, rod, tube, or...
156 72, D04H 1100
Patent
active
039376435
ABSTRACT:
A tufting machine having multi-color selection capability for each tufting cycle which utilizes pneumatic pressure, either positive or negative, or a combination of the two, to transfer the yarn or other tufting material to tufting elements. The system comprises yarn guide passageways having abutting sections which are relatively movable to create an opening through which a yarn severing means severs the yarn into selectively-sized bit lengths. The relative positions of the yarn severing means and the abutting sections of the passageways are adjustable to provide yarn bit lengths of selectable varying lengths. A combination bit applying element and clamp means is utilized to apply the yarn to an adhesive bit gripping surface on the backing layer. In the preferred embodiment, this application occurs before the yarn is severed and thus the yarn is effectively clamped at the time of severance. After severance, the combination bit-applying and clamp means retracts, permitting the backing layer to be advanced preparatory to the next tufting cycle.
REFERENCES:
patent: 3278363 (1966-10-01), Couquet
patent: 3554147 (1971-01-01), Spanel
patent: 3595186 (1971-07-01), Shorrock et al.
patent: 3670672 (1972-06-01), Spanel et al.
patent: 3697344 (1972-10-01), Temple
patent: 3756173 (1973-09-01), Shorrock
patent: 3824939 (1974-07-01), Spanel et al.
patent: R27165 (1971-08-01), Spanel et al.
Ball Michael W.
Drummond Douglas J.
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