Apparatus for limiting maximum number of stitches of sewing-mach

Details Apparatus for limiting maximum number of stitches of sewing-mach Apparatus for limiting maximum number of stitches of sewing-mach

1976-12-09

1978-07-18

Schroeder, Werner H.

Sewing

Elements

Starting or stopping

D05B 6918

Patent

active

041008685

ABSTRACT:
A motor, a clutch and a brake part are provided to drive a sewing machine. Two potentiometers are connected in series with individual ones of two respective switches and in parallel across two leads of a control cable which is connected to a control box. The control box supplies power to the motor under the control of a pedal. One of the switches is a contact switch controlled by a knee switch one of whose surfaces, swivelable about an axis, rests against the actuating member of the contact switch. The other switch is a position switch, such as a toggle switch, and is carried by another surface of the knee switch.

REFERENCES:
patent: 2262616 (1941-11-01), List
patent: 3217679 (1965-11-01), Novak
patent: 3319591 (1967-05-01), Hamlett

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