Suction tube for collecting broken ends of yarn at the outlet of

Details Suction tube for collecting broken ends of yarn at the outlet of Suction tube for collecting broken ends of yarn at the outlet of

1987-12-15

1989-05-02

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Clearing

19263, 57304, D01H 568, D01H 566

Patent

active

048256340

ABSTRACT:
A suction tube for a fly frame, roving frame, ring spinning machine or the like for collecting broken ends of yarn at the outlet rollers of the machine. The suction tube is connected to a collection chamber through a flexible sealing sleeve that permits the suction tube to pivot between its operative and inoperative positions. The suction tube comprises a suction end disposed under the bottom roller of the outlet rollers that has a body portion formed with a suction opening therein, an opposite end connected to the flexible sealing sleeve, and a pair of side walls projecting upwardly from the suction end body portion toward the bottom roller and longitudinally beyond the suction opening on opposite sides of the yarn for confining the suction substantially to the bottom roller and the yarn path. The side walls also have upper edges which are arcuately shaped to correspond approximately to the shape of the bottom roller so that the upper edges will contact the bottom roller and space the suction tube from the roller when the suction tube is unintentionally forced upwardly toward the bottom roller, thereby preventing damage to the suction tube.

REFERENCES:
patent: 2522250 (1950-09-01), Bechtler
patent: 2724943 (1955-11-01), Furstenberg
patent: 2825198 (1958-03-01), Krahschutz
patent: 2849852 (1958-09-01), Jacobi et al.
patent: 2956389 (1960-10-01), Berberich et al.
patent: 3251100 (1966-05-01), Ingham, Jr.
patent: 3541630 (1970-11-01), Barr, Jr. et al.

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