Composite articulated vehicles

Claim 1

A COMPOSITE ARTICULATED VEHICLE OF THE TRACTORTRAILER TYPE COMPRISING A TOW-BAR HAVING A PAIR OF ARMS; MEANS FOR PIVOTALLY CONNECTING THE FORWARD ENDS OF THE TOW-BAR ARMS TO THE TRACTOR AT LATERALLY SPACED APART POSITIONS ADJACENT THE REAR AXLE OF THE TRACTOR; A PLURALITY OF BEARINGS CONNECTED TO THE TOW-BAR ARMS TOWARD THE REAR ENDS THEREOF, THE BEARINGS HAVING MUTUALLY ALIGNED BORES WHICH ARE PARALLEL TO THE VERTICAL PLANE WHICH PASSES THROUGH THE LONGITUDINAL VENTER LINE OF THE TRACTOR; A TRAILER FRAME HAVING A CENTRAL EXTENSION WITH A FORKED END; A BEARING ON EACH LIMB OF THE FORKED END, THE SAID BEARINGS HAVING MUTUALLY ALIGNED VERTICAL BORES; A HOUSING PIVOTALLY MOUNTED BETWEEN THE SAID BEARINGS OF THE TOWBAR ARMS AND EMBRACED ALONG ONE AXIS BY THE SAID BEARINGS OF THE TOW-BAR ARMS AND ALONG AN AXIS PERPENDICULAR THERETO BY THE LIMBS OF THE FORKED END; A FIRST PAIR OF OPPOSED BOSSES ON SAID HOUSING, EACH BOSS HAVING A VERTICAL BORE WHICH IS ALIGNED WITH THE VERTICAL BORE OF THE OTHER BOSS; A FIRST PIVOT STUD WITHIN THE BORES OF THE FIRST PAIR OF BOSSES, WHICH STUD IS ALSO WITHIN THE BEARINGS OF THE LIMBS OF THE FORKED END; A SECOND PAIR OF OPPOSED BOSSES OF SAID HOUSING, EACH BOSS HAVING A HORIZONTAL BORE WHICH IS ALIGNED WITH THE HORIZONTAL BORE OF THE OTHER BOSS AND IS PARALLEL TO THE VERTICAL PLANE WHICH PASSES THROUGH THE LONGITUDINAL CENTER LINE OF THE TRACTOR; A SECOND AND THIRD PIVOT STUD, EACHOF WHICH IS WITHIN THE BORE OF ONE OF THE SAID SECOND PAIR OF OPPOSED BOSSES AND EACH OF WHICH IS ALSO WITHIN THE BORE OF THE ADJACENT BEARING OF THE TOW-BAR ARMS, WHEREBY SAID TOW-BAR AND SAID TRAILER FRAME EXTENSION ARE CONNECTED TOGETHER IN ARTICULATED MANNER PERMITTING RERLATIVE MOVEMENT THEREBETWEEN ABOUT A VERTICAL AXIS AND ABOUT A HORIZONTAL LONGITUDINAL AXIS.