Metal enclosed switchgear

Claim 1

IN DRAW-OUT TYPE SWITCHGEAR, THE COMBINATION OF, AN ENCLOSURE, A HORIZONTALLY MOVABLE CIRCUIT BREAKER UNIT, DRAW-OUT MEANS FOR MOVING SAID CIRCUIT BREAKER UNIT INWARDLY AND OUTWARDLY OF SAID ENCLOSURE, SAID DRAW-OUT MEANS INCLUDING A FIRST MEANS ROTATABLY MOUNTED ON SAID CIRCUIT BREAKER UNIT ABOUT A LONGITUDINAL AXIS, DRIVE MEANS COOPERATIVELY ENGAGING SAID FIRST MEANS FOR REVERSIBLE, UNIFORMLY ADVANCING MOVEMENT LONGITUDINALLY THEREALONG AS SAID FIRST MEANS ROTATES, SAID ENCLOSURE INCLUDING A FIRST COUPLING MEANS, SAID DRIVE MEANS INCLUDING SECOND COPLING MEANS ON ONE END THEREOF, RELEASABLY CONNECTABLE TO SAID FIRST COUPLING MEANS SO THAT SAID CIRCUIT BREAKER UNIT IS FORCED OUTWARDLY OF SAID ENCLOSURE AS SAID DRIVE MEANS MOVES TOWARD ONE EXTREMITY OF SAID FIRST MEANS AND IS DRAWN INWARDLY OF SAID ENCLOSURE UPON MOVEMENT OF SAID DRIVE MEANS TOWARD THE OTHER EXTREMITY THEREOF, ROTATION OF SAID FIRST MEANS IN ONE DIRECTION WHEN SAID DRIVE MEANS REACHES SAID ONE EXTERMITY ON SAID FIRST MEANS BEING OPERABLE TO MOVE SAID SECOND COUPLING MEANS OUT OF COUPLING ENGAGEMENT WITH SAID FIRST COUPLING MEANS, SAID FIRST COUPLING MEANS BEING OPERABLE UPON ROTATION IN AN OPPOSITE DIRECTION TO RECONNECT SAID FIRST AND SECOND COUPLING MEANS AND TO MOVE SAID DRIVE MEANS TOWARD THE OUTER EXTREMITY OF SAID FIRST MEANS.