Textiles: weaving – Weft manipulation – Weaving with stationary weft supply
Patent
1993-04-09
1994-10-04
Falik, Andrew M.
Textiles: weaving
Weft manipulation
Weaving with stationary weft supply
D03D 4734
Patent
active
053517245
ABSTRACT:
An electropneumatic device for the automatic threading of apparatuses for feeding weft to textile machines, and a weft feeding apparatus including the device. The device has first and second ducts for feeding pressurized pneumatic fluid. The ducts are cut off by a manually-actuated valve and end in thread inlet and outlet bushes to create a pneumatic flow and a consequent suction current which entrains the thread from one end of the feeder apparatus to the other. An intermediate open channel is arranged adjacent and parallel to the drum of the apparatus to convey the pneumatic flow and the thread entrained thereby in the free portion comprised between the radial arm outlet and a thread brake. A pneumatic pusher is fed by a third pneumatic duct and is arranged at the outlet of the intermediate channel. The pusher acts on a braking device to deform it and hinder elastic action applied to the drum, so as to guide the thread entrained by the flow through the braking device.
REFERENCES:
patent: 5072760 (1991-12-01), Kaufman
patent: 5094275 (1992-03-01), Shaw et al.
patent: 5109891 (1992-05-01), Maina
patent: 5123455 (1992-06-01), Maina
patent: 5181544 (1993-01-01), Deiuri
patent: 5201346 (1993-04-01), Cox
Patent Abstracts of Japan-vol. 8, No. 274 (M-345) (1711) Dec. 14, 1984 & JP-A-59 143 867-abstract.
Castelli Rosario
Pedrini Giovanni
Zenoni Pietro
Falik Andrew M.
Josif Albert
L.G.L. Elettronica S.p.A.
Modiano Guido
O"Byrne Daniel
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