Continuous miner having vertically and horizontally swingable cutter drum and conveyor sections

Claim 1

IN A CONTINUOUS MINING MACHINE, A MOBILE MAIN FRAME, A TURNTABLE PIVOTALLY MOUNTED ON SAID MAIN FRAME FOR MOVEMENT ABOUT A VERTICAL AXIS DISPOSED INTERMEDIATE THE ENDS OF SAID MAIN FRAME, A FORWARDLY EXTENDING BOOM PIVOTALLY MOUNTED ON SAID TURNTABLE FOR MOVEMENT ABOUT A HORIZONTAL TRANSVERSE AXIS, A ROTARY MINING HEAD ROTATABLY MOUNTED ON THE FORWARD END OF SAID BOOM, A CONVEYOR EXTENDING LONGITUDINALLY ALONG SAID MAIN FRAME AND BOOM TO A POSITION FORWARDLY OF THE FORWARD END OF SAID MAIN FRAME INTO ENGAGEMENT WITH THE GROUND, TRUNNION SUPPORT MEANS ON SAID TURNTABLE FOR SAID BOOM, FOR PIVOTALLY MOUNTING SAID CONVEYOR ON SAID TURNTABLE INTERMEDIATE THE ENDS OF SAID CONVEYOR, FOR UP AND DOWN MOVEMENT WITH RESPECT THERETO, SAID CONVEYOR HAVING ARTICULATED FORWARD AND REAR END PORTIONS ARTICULATED ABOUT UPRIGHT AXES, AND ONE OF THE AXES OF ARTICULATION OF SAID CONVEYOR BEING COINCIDENT WITH THE AXIS OF SAID TURNTABLE FOR AT LEAST ONE POSITION OF ADJUSTMENT.