Method of and apparatus for controlling pumps in looms with jet

Textiles: weaving – Weft manipulation – Special length

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Details

226 97, D03D 4736

Patent

active

039774430

ABSTRACT:
The pistons of all pumps in a group which supply pressure liquid to respective jet weft inserting nozzles of a loom are left, after sucking the liquid, in a rest dwell by the action of counterpressure of the sucked-in liquid. Thereafter, at the proper time the delivering space of a chosen pump is connected to its respective nozzle. The rest dwell of the piston in said pump is renewed by its following forcing-down in its suction stroke with its delivery space closed.

REFERENCES:
patent: 2936002 (1960-05-01), Opletal
patent: 3633808 (1972-01-01), Svaty
patent: 3782422 (1974-01-01), Vermeulen
patent: 3885599 (1975-05-01), Mawdsley et al.

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