Textiles: manufacturing – Textile product fabrication or treatment – Of thread interlaced article or fabric
Patent
1987-12-22
1989-08-29
Mackey, Robert R.
Textiles: manufacturing
Textile product fabrication or treatment
Of thread interlaced article or fabric
28202, D03D 304
Patent
active
048604119
ABSTRACT:
The invention concerns a thread separator for seaming machines, especially the seaming of dewatering webs, drying webs, felts and so on.
The object underlying the invention consists therein to optimize the reliablility 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 adapted 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), Wenzch
patent: 4581794 (1986-04-01), Oldroyd et al.
F. Oberdorfer GmbH & Co. KG Industriegewebe-Technik
Mackey Robert R.
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