Sand roller control mechanism for looms

Details Sand roller control mechanism for looms Sand roller control mechanism for looms

1978-09-19

1980-12-30

Jaudon, Henry

Textiles: weaving

Miscellaneous

Loom cleaning

139 1E, 139304, D03D 4920

Patent

active

042417643

ABSTRACT:
There is disclosed a control mechanism for the sand rollers of looms. The output of the cloth take-up motion of a loom is drivingly connected to a first input shaft of a differential gearing mechanism, and the second input shaft of the differential gearing mechanism is drivingly connected to the output shaft of an electric motor. The electric motor is under the control of a mechanism which selectively permits its starting and stopping. The output shaft of the differential gearing mechanism is drivingly connected to the sand roller. The electric motor is preferably of the reversible type, the means for controlling the motor then including means for selectively reversing the motor. During the ordinary operation of the loom, the sand roller is driven by the cloth take-up motion through the differential mechanism, the electric motor being then switched off and locked. Only when the tensioning or slacking off of the fabric is required is the electric motor started in the required direction after the loom has been stopped.

REFERENCES:
patent: 3265094 (1966-08-01), Baird
patent: 3318341 (1967-05-01), Nollet
patent: 3525367 (1970-08-01), Sprague
patent: 3934620 (1976-01-01), Garcia

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