Abstract: A track suspension is provided wherein a rear wishbone member is rotatably affixed to a yoke assembly and a yoke plate carrier through a rear wishbone joint, wherein a front wishbone member is rotatably affixed to the rear wishbone member through a front wishbone joint, wherein a rear rocker assembly is comprised of a rear rocker beam, a rear roller wheel and a rear idler wheel, wherein a front rocker beam is rotatably affixed to the front wishbone through a front rocker joint, wherein the rear rocker beam is rotatably affixed to the rear wishbone member through a rear rocker joint, wherein a front suspension spring assembly is affixed between a yoke assembly and a front wishbone member, and wherein a rear suspension spring assembly is affixed between the yoke assembly and the rear wishbone member.

Abstract: This invention discloses a track suspension wherein a rear wishbone member is rotatably affixed to a yoke assembly and a yoke plate carrier through a rear wishbone joint, wherein a front wishbone member is rotatably affixed to the rear wishbone member through a front wishbone joint, wherein a rear rocker assembly is comprised of a rear rocker beam, a rear roller wheel and a rear idler wheel, wherein a front rocker beam is rotatably affixed to the front wishbone through a front rocker joint, wherein the rear rocker beam is rotatably affixed to the rear wishbone member through a rear rocker joint, wherein a front suspension spring assembly is affixed between a yoke assembly and a front wishbone member, and wherein a rear suspension spring assembly is affixed between the yoke assembly and the rear wishbone member.

Abstract: An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame. and a rear or second A-frame. The A-frames are connected to the overall chassis at points close to but offset from the point of vehicle articulation via ball joints and via hydraulic suspension cylinders toward the wider portions of the “A”s. The vehicle is propelled along the ground by tracks that are independently suspended. The invention includes a suspension lockout feature to, effectively lockout the suspension system, i.e., render it rigid. One or more valves may are used to prevent hydraulic flow from and two the hydraulic suspension cylinders.

Abstract: A folding implement frame is disclosed which has wheels placed amid the tools on the frame so that variations in ground level will not alter cultivation depth. A novel method of folding is described which will enable the wheels to be used for transport. A linkage system is provided to maintain the frames horizontal position during raising and lowering.