Placing plastic paving material

Claim 1

IN A CONCRETE SPREADER FOR PLACING CONCRETE IN LAYING A SLAB OF PAVEMENT OR THE LIKE, A SPREADER FRAME ARRANGED TO TRAVEL ALONG THE SITE OF A PAVEMENT SLAB BEING LAID, A CONVEYER SUPPORTING GANTRY STRUCTURE POSITIONED TRANSVERSELY OF THE SLAB BEING LAID AND MOVABLY MOUNTED ON SAID SPREADER FRAME FOR ENDWISE ADJUSTMENT RELATIVE THERETO, SAID GANTRY BEING LONGER THAN THE WIDTH OF THE PAVEMENT SLAB BEING LAID AND ADAPTED TO PROJECT OVER EITHER OR BOTH EDGES OF THE SLAB SITE TO RECEIVE PLASTIC CONCRETE, POWER OPERATED MEANS TO MOVE SAID GANTRY ENDWISE ON SAID FRAME TO POSITION ITS PROJECTING ENDS SELECTIVELY RELATIVE TO THE SLAB BEING LAID FOR RECEIVING CONCRETE DELIVERED AT THE SIDE OF THE SLAB SITE, BELT PULLEYS ROTATABLY MOUNTED AT EACH END OF SAID CONVEYER GANTRY RESPECTIVELY, A CONVEYER BELT TRAINED TO RUN OVER SAID PULLEYS TO CONVEY PLASTIC CONCRETE TRANSVERSELY OF THE SLAB BEING LAID, POWER OPERATED MEANS MOUNTED ON SAID MOVABLE GANTRY AND CONNECTED TO DRIVE ONE OF SAID BELT PULLEYS IN EITHER DIRECTION SELECTIVELY AND THEREBY DRIVE SAID CONVEYER BELT REGARDLESS OF THE POSITION OF SAID GANTRY RELATIVE TO SAID FRAME, A PLOW MOVABLY MOUNTED ON SAID GANTRY IN POSITION TO PLOW PLASTIC CONCRETE FROM THE UPPER RUN OF SAID CONVEYERBELT TO DEPOSIT IT ON THE SITE OF THE PAVEMENT SLAB BEING LAID, POWER OPERATED MEANS MOUNTED ON SAID MOVABLE GANTRY AND CONNECTED TO MOVE SAID PLOW ALONG SAID BELT IN EITHER DIRECTION SELECTIVELY, AND CONTROL APPARATUS OPERATIVELY CONNECTED TO SAID PLOW MOVING POWER MEANS AND ARRANGED TO CONTROL MOVEMENT OF SAID PLOW IN A MANNER TO PLACE THE PLASTIC CONCRETE PLOWED FROM SAID BELT ON THE SITE IN A STRIP EXTENDING TRANSVERSELY OF THE PAVEMENT SLAB BEING LAID.