Endless tread self-propelled vehicle

Claim 1

A VEHICLE COMPRISING; A FRONT FRAME, INCLUDING AT LEAST ONE TERRAIN-ENGAGING TRACK ADAPTED TO PROPEL SAID VEHICLE, SAID TRACK ENTRAINING A FORWARD WHEEL MOUNTED ON A FORWARD AXLE AND A REARWARD WHEEL MOUNTED ON A REARWARD AXLE, AT LEAST ONE OF SAID WHEELS BEING A DRIVE WHEEL, AND REARWARDLY DIRECTED HANDLE; A REAR CARRYING FRAME, INCLUDING A TERRAIN-ENGAGING SURFACE, SAID REAR FRAME COMPRISING AN UNITARY GENERALLY RECTANGULAR FRAMEWORK COMPOSED OF A REAR TRANSVERSE END MEMBER AND SUBSTANTIALLY PARALLEL SIDE MEMBERS WHICH COVERGE AT THEIR FORWARD PORTIONS TO A BIFURCATED TONGUE, A SEAT ATTACHED TO SAID GENERALLY RECTANGULAR FRAMEWORK, A PAIR OF LEGS, EACH LEG DEPENDING FROM A SIDE MEMBER, AND A PAIR OF SKIS, EACH SKI BEING PIVOTALLY CONNECTED TO A LEG AT ONE END THEREOF; AND MEANS PIVOTALLY CONNECTING SAID FRONT FRAME WITH SAID REAR FRAME, SAID CONNECTING MEANS BEING CAPABLE OF BOTH LATERAL AND VERTICAL PIVOTING AND BEING POSITIONED FORWARD OF SAID REARWARD AXLE AND REARWARD OF SAID FORWARD AXLE.