Coal mining apparatus including conveyor system having togglelike articulation

Claim 1

APPARATUS FOR USE IN CONVEYING COAL FROM THE CONVEYOR OF A MACHINE WORKING AT A MINE FACE TO A SPACED FLOOR CONVEYOR ARRANGED TO CONVEY THE COAL AWAY FROM THE FACE COMPRISING FIRST AND SECOND COOPERATING ELONGATED CONVEYING MEANS EACH HAVING ACOAL RECEIVING END AND A COAL DISCHARGING END, MEANS FOR CONNECTING THE RECEIVING END OF SAID FIRST CONVEYING MEANS WITH THE MACHINE FOR LIMITED TILTING MOVEMENT AND FOR GENERALLY HORIZONTAL SWINGING MOVEMENT WITH RESPECT THERETO IN A POSITION TO RECEIVE THE COAL DISCHARGING FROM THE CONVEYOR OF THE MACHINE, MEANS SUPPORTING THE RECEIVING END OF SAID SECOND CONVEYING MEANS FOR LONGITUDINAL AND TRANSVERSE MOVEMENT ALONG THE MINE FLOOR, MEANS MOUNTING THE DISCHARGE END OF SAID FIRST CONVEYING MEANS ON THE RECEIVING END OF SAID SECOND CONVEYING MEANS ON LONGITUDINAL MOVEMENT THEREABOVE FOR LIMITED TILTING MOVEMENT WITH RESPECT THERETO AND FOR GENERALLY HORIZONTAL SWINGING MOVEMENT WITH RESPECT THERETO SO AS TO DISCHARGE THE COAL FROM THE DISCHARGE END OF SAID FIRST CONVEYING MEANS ONTO THE SECOND CONVEYING MEANS IN ANY POSITION OF MOVEMENT WITH RESPECT THERETO, AND MEANS FOR MOUNTING THE DISCHARGE END OF SAID SECOND CONVEYING MEANS ON THE FLOOR CONVEYOR FOR LONGITUDINAL MOVEMENT THEREABOVE, FOR LIMITED TILTING MOVEMENT WITH RESPECT THERETO AND FOR GENERALLY HORIZONTAL SWINGING MOVEMENT WITH RESPECT THERETO SO AS TO DISCHARGE THE COAL FROM THE DISCHARGE END OF SAID SECOND CONVEYING MEANS ONTO THE FLOOR CONVEYOR IN ANY POSITION OF MOVEMENT WITH RESPECT THERETO.