Apparatus for controlling actuating mechanism of loom dobby

Textiles: weaving – Warp manipulation – Shedding

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Details

139331, D03C 100

Patent

active

041379519

ABSTRACT:
The present invention relates to apparatus for controlling the actuating mechanism of a loom dobby and may be most effectively used in looms wherein the heald shafts are raised and lowered by means of continuously-rotating dobbies. This apparatus includes a unit for unit comparing the actual position of the heald shaft with a preset one, whose one input is connected to a program carrier and fed with information on the preset position of the heald shaft, whereas the other input is connected to the output of the actuating mechanism, thereby establishing a feedback coupling, and is fed with information on the actual position of the heald shaft, the output of the comparison unit being connected via a time-delay element to the second input of a logical element whose output is directly connected to the actuating mechanism. This provides for automatic control and matching of the actual and preset positions of the heald shaft.

REFERENCES:
patent: 2085459 (1937-06-01), Wiget
patent: 2926703 (1960-03-01), Scheibel et al.
patent: 3060975 (1962-10-01), Pfarrwaller
patent: 3554238 (1971-01-01), Hoenig

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