Method and apparatus for passing threadlike pieces through tubul

Details Method and apparatus for passing threadlike pieces through tubul Method and apparatus for passing threadlike pieces through tubul

1989-03-24

1991-10-22

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Assembling or joining

29241, 29709, 29728, 29819, 29821, B23P 1904

Patent

active

050582593

ABSTRACT:
A coil of a tube is formed. The coil is vibrated while a threadlike piece is passed in through the inlet end of the tube so that a given point of the tube reciprocates along a helical path. Provision is made to ensure that inlet end of the tube does not cause a portion of the threadlike piece upstream of and close to that inlet end to move diametrically while being fed into the tube. Provision is also made to form a coil of the treadlike piece, from which the threadlike piece is pulled out along the axis of the coil and fed to the inlet end of the tube by a conveying force resulting from the vibration of the coil of the tube. A feeder to supply the threadlike piece into the tube may be provided between the inlet end of the tube and a coil feeding device.

REFERENCES:
patent: 3872530 (1975-03-01), Festerling
patent: 4793048 (1988-12-01), Kashiwaya et al.
patent: 4802270 (1989-02-01), Kashiwaya et al.

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