Device for positioning and holding a yarn support tube during an

Details Device for positioning and holding a yarn support tube during an Device for positioning and holding a yarn support tube during an

1987-05-29

1988-08-23

Gilreath, Stanley N.

Winding, tensioning, or guiding

Support for a strand material holder

For bobbins

242 464, 242 466, B65H 4920

Patent

active

047655623

ABSTRACT:
This invention relates to a device (mandrel) serving as element for maintaining a cylindrical support tube around which yarn is wound. It is constituted by two elementary sleeves, mounted opposite each other on the drive shaft, said sleeves comprising peripheral fingers regularly spaced with respect to one another, the fingers of one sleeve abutting against the surface included between the fingers of the other sleeve. At least one of the elementary sleeves is mounted free in translation on the drive shaft and thrust means tend to maintain the two sleeves in spaced apart relationship with respect to each other, with the result that the ends of the fingers tend to move radially outward with respect to the axis of the mandrel and to firmly fix the cylindrical support tube disposed therearound.

REFERENCES:
patent: 1996319 (1935-04-01), Blair
patent: 2292832 (1942-08-01), Grauer
patent: 2615652 (1952-10-01), Johnson
patent: 2746689 (1956-05-01), Berkepeis
patent: 3165279 (1965-01-01), Remington
patent: 3356309 (1967-12-01), Poteat
patent: 3398907 (1968-08-01), Heumann
patent: 3592401 (1971-07-01), Smith et al.
patent: 3850394 (1974-11-01), Raasch et al.
patent: 4142690 (1979-03-01), Karle et al.
patent: 4613092 (1986-09-01), Nakai

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