Textiles: weaving – Weft manipulation – Weaving with stationary weft supply
Patent
1989-07-25
1991-01-29
Falik, Andrew M.
Textiles: weaving
Weft manipulation
Weaving with stationary weft supply
139452, 242131, D03D 4734
Patent
active
049879316
ABSTRACT:
A device for supplying weft threads in weaving machines with minimal twisting includes at least one rotatable set of thread supplies and one rotatable set of thread preparation mechanisms per set of thread supplies. The sets of thread preparation mechanisms are rotatable together with corresponding sets of thread supplies forming a rotatable assembly to prevent the weft threads from becoming tangled with one another as the sets rotate, for example to bring one of the thread preparation mechanisms adjacent a repair mechanism, or to change threads. A mechanism is further included which converts the rotational motion of the rotatable assembly into a translational motion essentially in the direction of the axis around which the assembly turns. By a suitable choice of the mechanism, lengthening of the thread after rotation can be fully compensated for by the translational motion of the thread supplies and of the corresponding thread preparation mechanisms.
REFERENCES:
patent: 3526253 (1970-09-01), Pfarrwaller
patent: 3575018 (1971-04-01), Levin
patent: 4066104 (1978-01-01), Halton et al.
patent: 4149678 (1979-04-01), Miyazaki et al.
patent: 4573856 (1986-03-01), Meyer et al.
Ligneel Roger
Shaw Henry
Falik Andrew M.
Picanol N.V.
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