Laterally swingable conveyors for continuous mining machine

Claim 1

A CONTINUOUS MINING MACHINE OF THE CLASS DESCRIBED COMPRISING, A MOBILE MAIN FRAME, AN APRON EXTENDING FORWARDLY OF A FORWARD END OF SAID MAIN FRAME AND INCLINED DOWNWARDLY FROM SAID MAIN FRAME TOWARD THE GROUND, A PAIR OF FEEDER FRAMES VERTICALLY PIVOTED ON SAID MAIN FRAME AT OPPOSITE SIDES THEREOF, A SIDE CUTTING MINING HEAD SUPPORTED ON EACH FEEDER FRAME, MEANS MOUNTING SAID MINING HEADS ON SAID FEEDER FRAMES TO EXTEND FORWARDLY THEREOF BEYOND THE FORWARD END OF SAID APRON, POWER MEANS CONNECTED BETWEEN SAID MAIN FRAME AND SAID FEEDER FRAMES FOR MOVING SAID FEEDER FRAME AND MINING HEADS TOWARD AND FROM EACH OTHER ACROSS SAID APRON, TWO SHOES GUIDED FOR MOVEMENT ALONG THE FORWARD END OF SAID APRON, TWO LATERALLY FLEXIBLE ENDLESS CONVEYORS EXTENDING ALONG SAID MAIN FRAME AND APRON AND CHANGING THEIR DIRECTIONS OF TRAVEL AT THE FORWARD END SAID APRON ABOUT SAID SHOES TO CONVEY THE MINED MATERIAL UPWARDLY ALONG SAID APRON, EACH CONVEYOR HAVING AN OUTER FLEXIBLE SIDE WALL EXTENDING UPWARDLY ALONG SAID APRON FROM AN ASSOCIATED SHOE, AND MEANS CONNECTING SAID FEEDER FRAMES WITH SAID CONVEYORS FOR MOVING SAID CONVEYORS INCLUDING SAID FLEXIBLE SIDE WALLS AND SHOES ALONG SAID APRON TOWARD EACH OTHER UPON FEEDING MOVEMENT OF SAID MINING HEADS TOWARD EACH OTHER.