Pavement cutting device

Claim 1

A DEVICE FOR CUTTING AND REMOVING ASPHALT AND THE LIKE COMPRISING FRAME MEANS INCLUDING A SPACER MEANS POSITIONED BETWEEN EACH ADJACENT PAIR OF CUTTER BLADES AS HEREINAFTER DEFINED TO FORM A GUIDE CHANNEL FOR EACH OF SAID CUTTER BLADES; A PLURALITY OF ELONGATED, HORIZONTAL CUTTER BLADES TRANSVERSELY SPACED AND SLIDABLY RECEIVED IN THE GUIDE CHANNELS OF SAID FRAME MEANS FOR LONGITUDINAL RECIPROCATION ON SAID FRAME MEANS; A CRANKSHAFT INCLUDING A PLURALITY OF LONGITUDINALLY SPACED THROWS JOURNALED FROM SAID FRAME MEANS FOR ROTATION ABOUT A TRANSVERSE HORIZONTAL AXIS; A PLURALIRY OF CONNECTING RODS HAVING ONE SET OF ENDS JOURNALED FROM SAID THROWS AND THE OTHER SET OF ENDS JOURNALED FROM SAID BLADES; DRIVE MEANS DRIVINGLY CONNECTED TO SAID CRANKSHAFT; AT LEAST SOME OF SAID THROWS BEING ANGULARLY DISPOSED RELATIVE TO EACH OTHER ABOUT THE AXIS OF ROTATION OF SAID CRANKSHAFT AND THEREBY CAUSING AT LEAST SOME OF SAID CUTTER BLADES TO RECIPROCATE IN OUT-OF-PHASE RELATION FROM THE OTHERS; AND CONVEYOR MEANS MOUNTED ON THE FRAME MEANS ADJACENT TO AND REARWARDLY OF THE CUTTING PORTIONS OF SAID CUTTER BLADES FOR REMOVING ASPHALT CUT BY THE BLADES.