Tape handling apparatus

Claim 1

IN TAPE HANDLING APPARATUS FOR INFORMATION BEARING TAPE HAVING INFORMATION RECORDED THEREON IN SPACED APART GROUPS INCLUDING BRAKING MEANS FOR CONTINUOUSLY FRICTIONALLY ENGAGING THE TAPE, A CONTINUOUSLY ROTATING CYLINDRICAL DRIVE MEMBER, A ROTATING CYLINDRICAL JAM MEMBER POSITIONED ADJACENT SAID DRIVE MEMBER FOR FRICTIONAL DRIVING CONTACT WITH SAID DRIVE MEMBER WHEREBY TO RECEIVE AND DRIVE TAPE ARRANGED THEREBETWEEN, MEANS FOR PIVOTALLY MOUNTING THE JAM MEMBER, ADJACENT TO AND OUT OF DRIVING CONTACT WITH SAID DRIVE MEMBER, SOLENOID MEANS INCLUDING AN ENERGIZABLE WINDING CONNECTED TO SAID LATTER MEANS FOR SWINGING THE JAM MEMBER INTO AND OUT OF FRICTIONAL DRIVING CONTACT WITH SAID DRIVE MEMBER, AND CONTROL CIRCUIT MEANS CONNECTED FOR SELECTIVELY ENERGIZING AND DE-ENERGIZING SAID SOLENOLD MEANS, SAID CONTROL CIRCUIT MEANS INCLUDING A SWITCHING CIRCUIT CONNECTED TO ENERGIZE AND DE-ENERGIZE THE SOLENOID WINDING AND ARRANGED TO BE ENERGIZED FOR PLACING THE JAM MEMBER IN DRIVING CONTACT WITH SAID DRIVE MEMBER, AN IMPEDANCE DEVICE CONNECTED TO THE SLOENOID WINDING FOR DISSIPATING THE ENERGY THEREOF, A FEEDBACK AMPLIFIER CONNECTED IN PARALLEL CIRCUIT RELATIONSHIP WITH SAID SWITCHING CIRCUIT AND CONTROLLED THEREOF, TO BE IN THE OPPOSITE CONDUCTIVE CONDITION THEREFROM, MEANS FOR DELIVERING A STOP SIGNAL TO SAID SWITCHING CIRCUIT, A CAPACITOR CONNECTED BETWEEN SAID FEEDBACK AMPLIFIER IN COMMON WITH THE IMPEDANCE DEVICE AND THE SOLENOID WINDING TO RECEIVE AND TEMPORARILY STORE THE ENERGY FROM SAID WINDING AND THEN DISCHARGE SAME THROUGH THE IMPEDANCE DEVICE TO CAUSE THE SOLENOID MEANS TO BE QUICKLY DE-ENERGIZED AND THEREBY THE TAPE TO BE QUICKLY STOPPED WITH THE AID OF SAID BRAKING MEANS.