Thread separator for seaming machines

Details Thread separator for seaming machines Thread separator for seaming machines

1989-05-30

1990-12-04

Schroeder, Werner H.

Textiles: manufacturing

Textile product fabrication or treatment

Of thread interlaced article or fabric

28202, D03D 304

Patent

active

049743007

ABSTRACT:
The invention concerns a thread separator for seaming machines, especially the seaming of dewwatering webs, drying webs, felts and so on. The object underlying the invention consists therein to optimize the reliability of the function of the thread separator by configuring their gripper needles such that the singling out of each foremost thread of a row of warp threads of the web is ensured and each piercing and taking with of the following thread is avoided. It is proposed to construct the gripper needles as separator needles, providing them with special hooks, of which at least two are located with respect to the upper side and the lower side of the web strip related to the row of threads in the same or parallel level opposite to one another, the tips thereof being directed to the opposing thread surface, respectively. The separator needles are provided with concave apertures adpated to the diameter of the thread which is to be separated on grasping it. These apertures are configured thus that piercing of the thread to be separated by the tips and catching the following thread are avoided.

REFERENCES:
patent: 977166 (1910-11-01), Colman
patent: 1207249 (1916-12-01), Wenzel
patent: 2313195 (1941-04-01), Fleischer et al.
patent: 4581794 (1986-04-01), Oldroyd et al.
patent: 4860411 (1989-08-01), Vohringer
patent: 4866821 (1989-09-01), Hacker et al.

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