Card stop for textile machines

Claim 1

A SAFETY DEVICE FOR A WOOLEN CARD TEXTILE MACHINE COMPRISING, IN COMBINATION, A BASE, AN UPWARDLY EXTENDING STANDARD SECURED TO SAID BASE, STOCK GUIDE MEANS SUPPORTED BY SAID STANDARD, STOCK DRAW MEANS SUPPORTED BY SAID STANDARD ADJACENT AND BENEATH THE SAID STOCK GUIDE MEANS, DRIVE MEANS FOR ACTUATING SAID STOCK DRAW MEANS, AN ELECTRICAL SWITCH MOUNTED UPON SAID STANDARD HAVING LEADS ASSOCIATED WITH THE DRIVE MECHANISM OF SAID MACHINE, AND SENSING MEANS, SAID SENSING MEANS CARRIED BENEATH SAID STOCK GUIDE MEANS AND STOCK DRAW MEANS FOR DETECTING A COMPLETELY BROKEN WEB PASSING THROUGH SAID STOCK GUIDE MEANS AND STOCK DRAW MEANS, SAID SENSING MEANS COMPRISING A CONTROL ARM EXTENDING UPWARDLY AND PROVIDED WITH A SUPPORT INTERMEDIATE ITS ENDS PIVOTALLY MOUNTED UPON SAID STANDARD, ONE END OF SAID CONTROL ARM LOCATED ABOVE THE SAID PIVOTAL SUPPORT BEING DISPOSED IN THE PATH OF MOVEMENT OF SAID WEB, AND THE OPPOSITE END LOCATED BENEATH THE SAID PIVOTAL SUPPORT INCLUDING A COUNTERWEIGHT, THE UPPERMOST END OF SAID CONTROL ARM COMPRISING OF A PAIR OF STOCK ENGAGING ARMS FOR ENGAGEMENT BY SAID WEB FOR MAINTAINING SAID CONTROL ARM IN A SUBSTANTIALLY ERECT POSITION DURING NORMAL OPERATION, AND SAID UPPERMOST END OF SAID CONTROL ARM BEING HEAVIER THAN THE LOWERMOST END THEREOF TO ROTATE TO ONE SIDE OR THE OTHER OF THE PIVOTAL SUPPORT UPON BREAKAGE OF THE WEB, THE MOVEMENT OF SAID CONTROL ARM ABOUT SAID PIVOTAL SUPPORT ACTUATING SAID SWITCH TO STOP SAID MACHINE DRIVING MECHANISM.