Embroidery lace machine

Details Embroidery lace machine Embroidery lace machine

1987-11-05

1990-04-03

Nerbun, Peter

Sewing

Special machines

Embroidering

112221, D05C 1106

Patent

active

049130722

ABSTRACT:
An embroidery lace machine has a plurality of mechanisms which can be brought into and out of operation by connection to and disconnection from a main drive shaft using electrically operated coupling devices 33. A single signal generating means (15) generates a reference pulse each time the driving shaft is in a reference rotational position and a train of angular position pulses indicating the rotational displacement of the shaft. Counting means (20) counts the number of angular position pulses following receipt of the reference pulse and generates a timing control signal via a one-shot device (31) and amplifier (32) to actuate each coupling device (33) when the number of angular position pulses counted by the counting means coincides with a respective preset count associated with the respective mechanism.

REFERENCES:
patent: 4254724 (1981-03-01), Conrads
patent: 4434728 (1984-03-01), Comploi et al.
patent: 4776291 (1988-11-01), Tajima et al.

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