Adjustable leveling implement for finishing cast concrete layers

Claim 1

AN IMPLEMENT FORMING A FINISHING STAND FOR LEVELING AND SMOOTHING FRESHLY CAST CONCRETE LAYERS COMPRISING A LEVELING BAR, A PAIR OF TUBULAR SLEEVES OF AN EQUAL LENGTH SECURED TO ONE SIDE OF SAID BAR NEAR THE OPPOSITE ENDS THEREOF AND EXTENDING VERTICALLY TO THE LONGITUDINAL AXIS OF SAID BAR, A PAIR OF SUPPORTING RODS TELESCOPICALLY SLIDABLE WITH SAID SLEEVES AND PROJECTING FROM THE FREE ENDS THEREOF, MEANS FOR LOCKING SAID SUPPORTING RODS AT DIFFERENT LENGTH ADJUSTMENTS TO SAID SLEEVES AND ANCHORING MEANS SECURED TO THE FREE ENDS OF SAID RODS, EACH OF SAID SLEEVES ON SAID LEVELING BAR HAVING A PLURALITY OF PAIRS OF DIAMETRICALLY-OPPOSED TRANSVERSE HOLES THEREIN SPACED FROM EACH OTHER IN THE AXIAL DIRECTION OF SAID SLEEVES SAID SUPPORTING RODS HAVING TRANSVERSE BORES SPACED FROM EACH IN THE AXIAL DIRECTION AND HAVING THE SAME DIAMETER AS SAID TRANSVESE HOLES, SAID LOCKING MEANS COMPRISING AT LEAST ONE COTTER PIN ADAPTED TO BE INSERTED THROUGH ONE OF SAID PAIRS OF HOLES IN EACH OF SAID SLEEVES AND THROUGH ONE OF SAID PAIRS OF HOLES IN EACH OF SAID RODS IN AXIAL ALIGNMENT WITH SAID LAST PAIR OF HOLES, PROTECTING TUBES OF ELASTIC MATERIAL EACH HAVING A LENGTH SUBSTANTIALLY EQUAL TO THE LENGTH OF ONE OF SAID SLEEVES AND TURNED LEVELING BAR AND BEING SLIPPED OVER SAID SLEEVE AND TURNED THEREON AND TO PREVENT LIQUID CONCRETE FROM ENTERING INTO THE HOLES IN SAID SLEEVE AND INTO THE SPACE BETWEEN SAID SLEEVE AND THE ASSOCIATED SUPPORTING ROD, EACH OF SAID TUBES HAVING AN INWARDLY PROJECTING ANNULAR FLANGE AT THE END THEREOF LOCATED ADJACENT TO THE FREE END OF SAID SLEEVE AND SURROUNDING AND TIGHTLY ENGAGING WITH A PART OF SAID SUPPORTING ROD PROJECTING FROM THE FREE END OF SAID SLEEVE, SAID TUBE HAVING A PLURALITY OF PAIRS OF DIAMETRICALLY OPPOSITE HOLES THEREIN CORRESPONDING IN NUMBER AND AXIAL DISTANCE FROM EACH OTHER TO SAID HOLES IN SAID SLEEVE AND HAVING A DIAMETER AT LEAST NOT LARGER THAN THAT OF SAID HOLES IN SAID SLEEVE, EACH PAIR OF SAID HOLES IN SAID TUBE BEING PERIPHERALLY OFFSET BY AN EQUAL SECTOR ANGLE RELATIVE TO THE ADJACENT PAIRS.