Paper machine flaw detecting and marking apparatus

Claim 1

FLAW DETECTING AND MARKING APPARATUS FOR HIGH SPEED CONTINUOUS WEB PAPER MACHINES INCLUDING, ELECTRONIC FLAW DETECTOR MEANS HAVING A PLURALITY OF LIGHT ACTUATED WEB SCANNING DEVICES AND CIRCUITRY TO INITIATE A SIGNAL IMPULSE IN RESPONSE TO THE PASSAGE OF A DETECTED FLAW ON A CONTINUOUSLY MOVING PAPER WEB PAST ANY SUCH SCANNING DEVICE; SAID SCANNING DEVICES BEING ADAPTED TO SCAN ONE EACH OF A PLURALITY OF DIFFERENT PREDETERMINED LONGITUDINALLY EXTENDING ZONES OF A CONTINUOUSLY MOVING PAPER MACHINE WEB; CHALK MARKING MEANS INCLUDING A SEPARATE CHALK MARKING DEVICE ASSOCIATED WITH EACH SCANNING DEVICE OPERABLE TO MARK AN EDGE OF THE WEB DURING CONTINUOUS WEB MOVEMENT WITH A SELECTIVE CHALK MARK IN RESPONSE TO A SCANNING DEVICE SIGNAL IMPULSE IN THE CIRCUITRY OF THE SCANNING DEVICE ASSOCIATED WITH SUCH MARKING DEVICE, THEREBY FORMING FOR EACH FLAW A CHALK MARK SIGNAL VISIBLE EXTERNALLY AT AN END OF A ROLL OF PAPER PRODUCED BY A PAPER MACHINE INDICATING THE PRESENCE AND LOCATION OF SUCH FLAW; AND CONTROL MEANS OPERATIVELY CONNECTING EACH SCANNING DEVICE WITH ITS ASSOCIATED CHALK MARKING DEVICE ACUTATED BY THE SIGNAL IMPULSE INITIATED IN THE CIRCUITRY OF SUCH SCANNING DEVICE TO OPERATE SUCH ASSOCIATED CHALK MARKING DEVICE.