Spinning frame and automation means therefor

Claim 1

IN A SPINNING FRAME OF THE TYPE HAVING A STATIONARY SPINDLE RAIL, A MOVABLE RING RAIL, CARRIAGE AND VERTICAL GUIDE MEANS FOR SAID RING RAIL, LIFTER TAPES FOR SAID CARRIAGE MEANS, A WINDLASS AND WIND DOWN MECHANISM CONNECTED WITH SAID LIFTER TAPES TO WIND UP AND PAY OUT THE SAME, A TORSION BAR TO SUPPLY ENERGY, FLEXIBLE MEANS INTERCONNECTING THE TORSION BAR AND SAID MECHANISM FOR TURNING THE LATTER IN ONE DIRECTION TO LIFT THE RING RAIL, A BUILDER MOTION, A FLEXIBLE ELEMENT INTERCONNECTING THE BUILDER MOTION AND SAID MECHANISM TO TURN THE LATTER IN AN OPPOSITE DIRECTION AND IN OPPOSITION TO SAID TORSION BAR FOR OSCILLATING THE RING RAIL, THE IMPROVEMENT COMPRISING AN ELECTRO-MAGNETIC CLUTCH UNIT CONNECTED WITH SAID WINDLASS AND WIND DOWN MECHANISM AND ADAPTED WHEN ACTIVE TO TURN SAID MECHANISM IN A DIRECTION FOR LOWERING THE RING RAIL TO A BOBBIN DOFFING POSITION AND OVERRIDING THE FORCE OF SAID TORSION BAR SAID CLUTCH UNIT WHEN INACTIVE ALLOWING FREE OSCILLATION OF SAID MECHANISM UNDER INFLUENCE OF THE TORSION BAR AND SAID BUILDER MOTION, GEARING CONNECTED WITH SAID CLUTCH UNIT AND POWERED BY THE DRAFTING SYSTEM OF THE SPINNING FRAME, AN ELECTRO-MECHANICAL ESCAPEMENT UNIT CONNECTED IN SAID FLEXIBLE ELEMENT BETWEEN THE BUILDER MOTION AND SAID MECHANISM AND ADAPTED WHEN ENERGIZED TO CAUSE LENGTHENING OF THE FLEXIBLE ELEMENT, WHEREBY SAID TORSION BAR AND MECHANISM MAY THAN RAISE THE RING RAIL TO A TIP BUNCH APPLYING POSITION ABOVE THE NORMAL UPWARD LIMIT OF MOVEMENT OF THE RING RAIL AFTER BOBBIN BUILDING AND PRIOR TO LOWERING THE RING RAIL, AUTOMATIC MECHANICAL LOCK MEANS FOR SAID WINDLESS AND WIND DOWN MECHANISM OPERABLE TO LOCK THE LATTER AGAINST ROTATION ONLY WHEN THE RING RAIL IS FULLY LOWERED, A FIRST SWITCH ON SAID MECHANISM AND OPENED AND CLOSED BY OPERATION OF SAID LOCK MEANS, A SECOND SWITCH ON SAID MECHANISM, AN ECCENTRIC CAM ON SAID MECHANISM AND TURNING THEREWITH AND ENGAGING THE SECOND SWITCH TO OPEN AND CLOSE THE SAME, AND CONTROL CIRCUIT MEANS ELECTRICALLY INTERCONNECTING SAID SWITCHES, CLUTCH UNIT AND ESCAPEMENT UNIT AND ADAPTED TO COORDINATE THE OPERATION OF THE SAME IN PROPERLY TIMED RELATION.