Vehicle-moving device having fourposter-type screw jack lifting means

Claim 1

A SELF PROPELLED DEVICE FOR SUPPORTING AND MOVING A VEHICLE, WHICH INCLUDES: A GENERALLY RECTANGULAR FRAME; AN ENDLESS BELT TRACK ON EACH SIDE OF SAID FRAME; MEANS SUPPORTING SAID BELT TRACKS FOR INDEPENDENT MOVEMENT ALONG SAID SIDES OF SAID FRAME; SEPARATE MOTOR MEANS DRIVING EACH OF SAID BELT TRACKS; CONTROLLER MEANS FOR INDEPENDENTLY CONTROLLING THE OPERATION OF SAID MOTOR MEANS, REMOTELY LOCATED WITH RESPECT TO SAID FRAME AND CONNECTED THERETO BY FLEXIBLE MEANS: A PLURALITY OF SCREW TYPE JACKS LOCATED ADJACENT THE CORNERS OF SAID FRAME, SAID JACKS BEING SUPPORTED BY SAID FRAME AND BEING VERTICALLY EXTENSIBLE AND RETRACTIBLE; INTERCONNECTING MEANS EXTENDING TRANSVERSELY BETWEEN THE UPPER ENDS OF EACH END PAIR OF SAID JACKS AND MOVABLE THEREWITH; POSITIONING STRIPS CENTRALLY LOCATED AT THE TOP OF SAID INTERCONNECTING MEANS; AND A BEAM-TYPE MEMBER CARRIED BY SAID INTERCONNECTING MEANS BETWEEN SAID POSITIONING STRIPS AND MOVABLE THEREWITH, SAID MEMBER EXTENDING BEYOND THE BOUNDARIES OF SAID FRAME TO ENGAGE WIDELY SEPARATED POINTS ON SAID VEHICLE, WHEREBY THE EXTENSION OF SAID JACKS RAISES SAID MEMBER FOR ENGAGEMENT AND LIFTING OF SAID VEHICLE, AND THE OPERATION OF SAID MOTOR MEANS THEREAFTER CAUSES THE HORIZONTAL MOVEMENT OF SAID VEHICLE.