High lift trailer

Claim 1

LOW OVERHEAD, HIGH LIFT APPARATUS COMPRISING: A LOWE SECTION COMPRISING A CHASSIS, GROUND ENGAGING WHEELS ON SAID CHASSIS FOR SUPPORTING SAID CHASSIS CLOSELY ADJACENT TO THE GROUN, A PAIR OF GENERALLY PARALLEL ARMS EACH HAVING A FIRST END PIVOTALLY CONNECTED TO SAID CHASSIS AND A SECOND END WITH A ROLLER MOUNTED ON SAID SECOND END, AND A PAIR OF CHANNEL MEMBERS MOUNTED ON SAID CHASSIS GENERALLY PARALLEL TO SAID ARMS WITH SAID CHASSIS MEMBERS AND SAID ARMS LYING IN SUBSTANTIALLY THE SAME HORIZONTAL PLANE; AN UPPER SECTION COMPRISING A SUPPORT FRAME POSITIONED ABOVE SAID CHASSIS WITH A LOAD SUPPORTING PLATFORM PORTION THEREOF ADJACENT TO ONE END OF SAID CHASSIS AND A RELIEVED PORTION ADJACENT TO THE OTHER END OF SAID CHASSIS, A SECOND PAIR OF GENERALLY PARALLEL ARMS EACH HAVING A FIRST END PIVOTALLY CONNECTED TO SAID SUPPORT FRAME AND A SECOND END WITH A ROLLER MOUNTED ON SAID SECOND END AND RECEIVED IN ONE OF SAID CHANNELS, AND A SECOND PAIR OF CHANNELS MOUNTED ON SAID SUPPORT FRAME GENERALLY PARALLEL TO SAID SECOND ARMS AND RECEIVING SAID ROLLERS ON SAID FIRST ARMS, WITH SAID SECOND PAIRS OF ARMS AND CHANNELS LYING IN SUBSTANTIALLY THE SAME PLANE AS SAID FIRST PAIRS; RIGID EXTENSION MEANS MOUNTED ON SAID SECOND SET OF ARMS EXTENDING THEREFROM INTO SAID RELIEVED PORTION OF SAID SUPPORT FRAME; PIVOT MEANS PIVOTALLY CONNECTING EACH OF THE ARMS OF ONE PAIR TO ONE OF THE ARMS OF THE OTHER PAIR AT A POINT INTERMEDIATE OF SAID ENDS OF SAID ARMS; AND LIFT MEANS FOR RAISING SAID UPPER SECTION ABOVE SAID LOWER SECTION COMPRISING RAM MEANS PIVOTALLY CONNECTED TO SAID LOWER SECTION AT AN AREA UNDER SAID PLATFORM PORTION AND PIVOTALLY CONNECTED TO SAID EXTENSION MEANS IN SAID RELIEVED PORTION WITH THE DIRECTION OF ACTION OF SAID RAM MEANS BEING INCLINED TO SAID PLANE.