Portable surfacing machine for terrazzo floors

Claim 1

THE METHOD OF SURFACING A TERRAZZO FLOOR OR THE LIKE WHICH COMPRISES SUPPORTING A CUTTING MECHANISM ON THREE WHEELS WHICH DEFINE A HORIZONTAL DATUM CUTTING PLANE, SAID CUTTING MECHANISM INCLUDING A PAIR OF COUNTER ROTATING WHEELS EACH HAVING PERIPHERALLY SPACED CUTTING ELEMENTS THEREON ORIENTED SUCH THAT EACH ELEMENT PROVIDES A POINT CUT ALONG THE SURFACE, LOWERING SAID WHEELS WHILE ROTATING THE SAME TO CUT SAID FLOOR TO A PREDETERMINED DEPTH, MOVING THE WHEELS FORWARDLY TO THEREBY CUT A TRACK OF SAID PREDETERMINED DEPTH, RAISING THE CUTTER WHEELS OUT OF CUTTING ENGAGEMENT WITH SAID FLOOR, MOVING SAID CUTTING MECHANISM LATERALLY SO THAT AT LEAST ONE OF SAID WHEELS RESTS ON AN UNCUT SURFACE WHILE THE REMAINING WHEELS REST ON THE PREVIOUSLY CUT TRACK, LOWERING SAID REMAINING WHEELS BY THE AMOUNT OF SAID PREDETERMINED DEPTH OF CUT, AND LOWERING SAID CUTTING WHEELS AND MOVING SAID MACHINE FORWARDLY TO CUT A TRACK PARALLEL TO THE FIRST TRACK AND HAVING SUBSTANTIALLY THE SAME DEPTH OF CUT.