Sewing machine motor actuated pneumatic pump for needle threadin

Details Sewing machine motor actuated pneumatic pump for needle threadin Sewing machine motor actuated pneumatic pump for needle threadin

1978-10-17

1979-08-14

Schroeder, Werner H.

Sewing

Elements

Needles

112275, 12220, 112DIG1, 192 4892, D05B 6910, D05B 6918, D05B 8700

Patent

active

041641914

ABSTRACT:
A pump actuating mechanism which allows a sewing machine motor to be used for operating a pneumatic pump. The mechanism utilizes two oppositely arranged, single direction, overrunning clutches, one connected to the sewing machine drive and the other connected to a pump linkage. An electrical switch is used to reverse the direction of the motor rotation thereby disengaging the motor from the sewing machine drive and engaging the motor with the pump linkage.

REFERENCES:
patent: 2082738 (1937-06-01), Le Vesconte
patent: 2943586 (1960-07-01), Hamlett
patent: 2999575 (1961-09-01), Schwab
patent: 3486472 (1969-12-01), Kaplan
patent: 3635412 (1972-01-01), Perlino
patent: 4010700 (1977-03-01), Webb

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