Seam detection and control system

Details Seam detection and control system Seam detection and control system

1980-07-03

1982-04-06

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

250223R, G01N 2186

Patent

active

043237860

ABSTRACT:
The invention pertains to apparatus for sensing the presence of a seam in a moving strip of fabric being proccesed, the detection of a seam actuating a control circuit which modifies the fabric processing to accomodate the seam. An optical seam detector determines the rate of movement of the fabric, initiates a electronic counter producing a voltage inversely proportional to the rate of fabric movement. An electronic timer, also initiated by the sensing of the seam, receives and evaluates the velocity determined voltage and produces a timed actuation of the fabric processing apparatus corresponding to the seam arriving at the processing station. The disclosed circuit is capable of actuating two fabric processing stations sequentially arranged in the direction of fabric movement, and the circuitry resets itself upon initial seam detection.

REFERENCES:
patent: 4067760 (1978-01-01), Nelson
patent: 4286149 (1981-08-01), Ben-Nathan et al.

Affiliated with

Also associated with

Rating

Seam detection and control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seam detection and control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seam detection and control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-594318