Two-for-one twisting machine

Details Two-for-one twisting machine Two-for-one twisting machine

1990-01-18

1991-03-12

Stodola, Daniel P.

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 5852, 57 587, D01H 110, D01H 786

Patent

active

049984055

ABSTRACT:
A two-for-one twisting machine, comprising twisting spindles each having a threading device arranged in the region of the spindle axis, through which a yarn is sucked in by the action of an injector and ejected by means of a compressed-air jet in upward direction through the space between the feed package pot and balloon limiter. A yarn catching ring placed on the upper annular gap of the space between the feed package pot and balloon limiter serves to catch and position the yarn, which ring has in its interior a closed annular channel with a cross section open toward the annular gap, and is connected, via a radially outward extending connecting end, with a source of underpressure. The underpressure permits the yarn to enter into the annular channel and advance to the connecting end, where it is finally positioned.

REFERENCES:
patent: 4127983 (1978-12-01), Munker
patent: 4354343 (1982-10-01), D'Agnolo et al.
patent: 4391089 (1983-07-01), Billner et al.
patent: 4671054 (1987-06-01), Grundmann et al.
patent: 4854116 (1989-08-01), Lorenz et al.

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