Paving machine

Claim 1

A MACHINE FOR BLANKETING A SLOPING FOUNDATION WITH PAVING MATERIAL LAID IN SECTIONS BY MOVEMENT OF THE MACHINE UP THE SLOPE, INCLUDING A FRAME, MEANS FOR MOVING SAID FRAME, A HORIZONTAL STRIKEOFF BAR SUSPENDED FROM THE FRONT END OF SAID FRAME, SAID STRIKEOFF BAR EXTENDING TRANSVERSELY OF SAID FRAME, MEANS FOR RAISING AND LOWERING SAID STRIKEOFF BAR DURING MOVEMENT OF SAID FRAME UP OR DOWN THE SLOPE, CONFINING SIDE WALLS FOR THE PAVING MATERIAL SUPPORTED NEAR THE FRONT OF SAID FRAME, MEANS FOR VARYING THE DISTANCE BETWEEN SAID SIDE WALLS, A SPREADER SUPPORTED BY SAID FRAME BETWEEN SAID CONFINING SIDE WALLS, MEANS FOR MOVING SAID SPREADER IN A RECIPROCATING MOTION BETWEEN SAID SIDE WALLS, TO DISTRIBUTE AND MIX PAVING MATERIAL POURED ON THE SLOPE IN ADVANCE OF THE MACHINE, A FLOAT BODY SUSPENDED FROM SAID FRAME AFT OF SAID SPREADER, THE FLOAT BODY INCLUDING A PANEL, THE LOWER FACE OF WHICH IS ADAPTED FOR ENGAGEMENT WITH THE PAVING MATERIAL, THE FORWARD TERMINAL OF SAID PANEL EXTENDING UPWARDLY AT AN ANGLE TO PROVIDE A FORWARD, UPWARDLY INCLINED NOSE PORTION FOR PUSHING AHEAD OF THE MACHINE SURPLUS MATERIAL PLACED IN ITS PATH, SAID NOSE PORTION BEING IN CONTIGUOUS ENGAGEMENT WITH SAID CONFINING SIDE WALLS, THEREBY FORMING A HOPPER-LIKE MEMBER FOR RECEIVING THE PAVING MATERIAL, MATERIAL INTERCEPTER MEANS TRANSVERSELY OF THE FLOAT BODY AT THE UPPER TERMINAL OF SAID NOSE PORTION, AND PROTRUDING OUTWARDLY THEREFROM, TO PREVENT PAVING MATERIAL FROM RISING OVER THE NOSE PORTION TO THE UPPER FACE OF THE FLOAT BODY, SAID PANEL BEING SLIGHTLY DOWNWARDLY INCLINED, WITH RESPECT TO THE FRAME, FROM THE NOSE PORTION TO THE AFT EDGE THEREOF, TO FORM A DEPRESSED ENCRUSTING PAN FOR EFFECTING A FLOATING AND TROWELING OF THE PAVING MATERIAL AS THE FLOAT BODY MOVES THEREOVER, A TUBULAR VIBRATOR BETWEEN SAID NOSE PORTION OF THE FLOAT BODY AND SAID SPREADER EXTENDING TRANSVERSELY OF THE FRAME THROUGH SAID SIDE WALLS, SPACED BRACKETS CARRIED BY SAID NOSE PORTION, AND EXTENDING FORWARDLY THEREOF, IN SUPPORTING ENGAGEMENT WITH SAID TUBULAR VIBRATOR, RESILIENT MEANS INTERPOSED BETWEEN EACH OF SAID BRACKETS AND NOSE PORTION OF THE FLOAT BODY, TO PREVENT TRANSMISSION OF VIBRATIONS TO THE FLOAT BODY, MEANS FOR ACTUATING SAID VIBRATOR TO DENSIFY THE PAVING MATERIAL, A FINISHER DEPENDING FROM SAID FRAME AFT OF SAID FLOAT BODY AND OPERABLE ON THE SURFACE CRUST FORMED BY SAID DEPRESSED ENCRUSTING PAN OF THE FLOAT BODY, MEANS FOR SETTING THE ANGLE OF ATTACK OF SAID FINISHER WITH RESPECT TO THE PAVING MATERIAL, TO DETERMINE THE DEPTH AND GLAZE OF THE ENCRUSTATION TO BE FORMED BY THE FINISHER, MEANS FOR EFFECTING CONSTANT DOWNWARD PRESSURE OF SAID FINISHER ON THE PAVING MATERIAL, AND AN ASSEMBLY ON SAID FRAME AFT OF SAID FINISHER, FOR FORMING TRANSVERSE CONTRACTION JOINTS IN SAID PAVING MATERIAL, SAID ASSEMBLY INCLUDING A BLADE DEPENDING FROM SAID FRAME TRANSVERSELY OF THE DIRECTION OF MOVEMENT OF SAID FRAME, POWER MEANS FOR FORCING SAID BLADE INTO THE PAVING MATERIAL AND FOR WITHDRAWING THE BLADE THEREFROM, THE ASSEMBLY FURTHER INCLUDING MEANS FOR PREVENTING FORWARD MOVEMENT OF SAID BLADE WITH RESPECT TO THE PAVING MATERIAL DURING ENGAGEMENT OF THE BLADE THEREWITH, SAID LATTER MEANS EFFECTING MOVEMENT OF THE BLADE WITH RESPECT TO THE FRAME TOWARD ITS INITIAL POSITION AFTER THE BLADE IS WITHDRAWN FROM THE PAVING MATERIAL.