Machine for cutting grooves of constant depth in pavement

Claim 1

IN A PAVEMENT GROOVING MACHINE, THE COMBINATION OF: (A) A FRAME; (B) TWO WHEEL MEANS SUPPORTING SAID FRAME FOR MOVEMENT OVER PAVEMENT TO BE GROOVED; (C) EACH OF SAID WHEEL MEANS INCLUDING COMPONENTS SPACED APART TRANVERSELY OF THE DIRECTION OF MOVEMENT OF SAID FRAME; (D) TWO INDEPENDENTLY ADJUSTABLE CONNECTING MEANS SPACED APART TRANSVERSELY OF THE DIRECTION OF MVOEMENT OF SAID FRAME FOR VERTICALLY ADJUSTING THE POSITIONS OF SAID TRANSVERSELY SPACED COMPONENTS OF ONE OF SAID WHEEL MEANS RELATIVE TO SAID FRAME; (E) ROTARY GROOVING MEANS CARRIED BY SAID FRAME AND SPACED LONGITUDINALLY FROM SAID ONE WHEEL MEANS IN THE DIRECTION OF MOVEMENT OF SAID FRAME AND ROTATABLE ABOUT AN AXIS EXTENDING TRANSVERSELY OF SAID FRAME; (F) SAID TRANSVERSELY SPACED COMPONENTS OF THE OTHER OF SAID WHEEL MEANS BEING CONNECTED TO SAID FRAME AND BEING ROTATABLE ABOUT AN EFFECTIVE TRANSVERSE AXIS SUBSTANTIALLY IN THE SAME TRANSVERSE VERTICAL PLANE AS THE AXIS OF ROTATION OF SAID ROTARY GROOVING MEANS; AND (G) MEANS ON SAID FRAME FOR DRIVING SAID ONE WHEEL MEANS AND SAID ROTARY GROOVING MEANS.