Automatic control system for spinning frames

Claim 1

IN A SPINNING FRAME AND AUTOMATIC CONTROL SYSTEM THEREFOR, A VERTICALLY OSCILLATING RING RAIL ADAPTED TO TRAVERSE BOBBINS DURING THE BUILDING THEREOF, BUILDER MOTION MEANS INCLUDING COUNTERWEIGHT MEANS TO OSCILLATE THE RING RAIL DURING THE BUILDING OF THE BOBBINS, AN ELECTROMAGNETICALLY OPERATED ESCAPEMENT DEVICE CONNECTED IN THE BUILDER MOTION MEANS AND OPERABLE AFTER THE BUILDING OF THE BOBBINS TO ALLOW THE RING RAIL TO SHIFT UPWARDLY TO A TIP BUNCH APPLYING POSITION, A CONTINUOUSLY DRIVEN FRONT DRAFT ROLL TO DELIVER YARN, A RING RAIL LOWERING UNIT INCLUDING A CLUTCH DEVICE MOUNTED UPON THE SPINNING FRAME, GEARING DRIVINGLY INTERCONNECTING SAID FRONT DRAFT ROLL AND RING RAIL LOWERING UNIT, ELECTROMAGNETIC MEANS ON THE RING RAIL LOWERING UNIT TO CLUTCH AND DE-CLUTCH THE SAME, A PULLEY ON THE RING RAIL LOWERING UNIT AND DRIVEN THEREBY WHEN THE UNIT IS CLUTCHED, A FLEXIBLE ELEMENT CONNECTED WITH SAID PULLEY AND ADAPTED TO BE WOUND THEREON FOR LOWERING THE RING RAIL TO A DOFFING POSITION AFTER APPLICATION OF THE TIP BUNCH TO THE BOBBINS AND CONNECTED WITH THE BUILDER MOTION MEANS AND ADAPTED TO OVERRIDE THE LATTER FOR TAKING OVER CONTROL OF THE RING RAIL, A YARN YARDAGE PREDETERMINING DEVICE CONNECTED WITH AND DRIVEN BY THE FRONT DRAFT ROLL AND INCLUDING SWITCH CONTACTS, A LIMIT SWITCH IN THE PATH OF TRAVEL OF THE RING RAIL TO BE ENGAGED THEREBY FOR COMPLETING A CIRCUIT SUBSEQUENT TO THE CLOSING OF SAID SWITCH CONTACTS OF THE YARDAGE PREDETERMINING DEVICE, A ROTARY CONTROL TIMER UNIT INCLUDING CAM OPERATED SWITCHES TO CONTROL AND CYCLE THE OPERATION OF THE ESCAPEMENT DEVICE, RING RAIL LOWERING UNIT AND SPINNING FRAME AFTER CLOSING OF SAID LIMIT SWITCH, AND CONTROL CIRCUITRY ELECTRICALLY INTERCONNECTING SAID CONTROL TIMER UNIT, RING RAIL LOWERING UNIT, ESCAPEMENT DEVICE, LIMIT SWITCH AND YARDAGE PREDETERMINING DEVICE.