Jam sensing mechanism for a bottom wrap inserting machine

Claim 1

IN A DEVICE FOR FEEDING A WEB FROM A SOURCE OF SUPPLY, THE COMBINATION WITH A PAIR OF SPACED DRIVEN ROLLERS, A PAIR OF SPACED PRESSURE ROLLERS, MEANS FOR MOVING SAID PRESSURE ROLLERS INTO WEB GRIPPING RELATION WITH SAID DRIVEN ROLLERS ALTERNATELY, A WEB SEVERING MEMBER FOR SEVERING SAID WEB INTO INDIVIDUAL SHEETS OF PREDETERMINED LENGTH AND MEANS FOR MOVING SAID MEMBER INTO A WEB SEVERING POSITION,A WEB BRAKE MEMBER, MEANS FOR MOVING SAID BRAKE MEMBER INTO A WEB GRIPPING RELATION WITH A COOPERATING STATIONARY MEMBER, CONTROL MEANS TO OPERATE SAID MEANS TO MOVE SAID WEB SEVERING MEMBER AND SAID MEANS TO MOVE SAID BRAKE MEMBER AS AFORESTATED UPON THE RELEASE OF SAID FIRST SET OF DRIVEN AND PRESSURE ROLLERS UNDER NORMAL OPERATING CONDITIONS, AND A WEB TENSIONING MEMBER PLACED BETWEEN SAID FIRST SET OF DRIVEN AND PRESSURE ROLLERS AND SAID SOURCE OF SUPPLY, OF GUIDE MEANS FOR GUIDING SAID WEB BETWEEN A FIRST SET OF DRIVEN AND PRESSURE ROLERS AND BEYOND, SAID GUIDE MEANS COMPRISING A PIVOTALLY MOUNTED MEMBER SPRING BIASED TO A NORMAL POSITION AGAINST SAID WEB, AND MEANS RESONSIVE TO MOVEMENT OF SAID PIVOTALLY MOUNTED GUIDE MEMBER A GIVEN DISTANCE AGAINST THE BIAS OF SAID SPRING TO CAUSE THE FIRST MENTIONED MEANS TO MOVE TO PRESSURE ROLLER OF SAID FIRST SET OF DRIVEN AND PRESSURE ROLLERS OUT OF ENGAGEMENT WITH SAID WEB, TO HOLD SAID SEVERING MEMBER OUT OF ITS WEB SEVERING POSITION, AND TO HOLD SAID BRAKE OUT OF WEB GRIPPING RELATION WITH SAID COOPERATING STATIONARY MEMBER, SAID WEB TENSIONING MEMBER AIDING IN PULLING SAID WEB FROM THE DEVICE UPON THE RELEASE OF SAID FIRST SET OF DRIVEN AND PRESSURE ROLLERS AND HOLD-OFF OF SAID WEB SEVERING MEMBER AND SAID BRAKE MEMBER IN RESPONSE TO THE AFOREMENTIONED MOVEMENT OF SAID PIVOTALLY MOUNTED GUIDE MEMBER.