Abstract: A sulky includes a frame and a first and second wheel supports. The first wheel support extends along a first axis and is rotatably coupled to the frame about the first axis. The second wheel support extends along a second axis and is rotatably coupled to the frame about the second axis. First and second pedals are operatively coupled to the frame and to the first and second wheel supports, respectively. The first and second pedals are moveable relative to the frame for rotating the first wheel support about the first axis and for rotating the second wheel support about the second axis. A linkage operatively couples the first and second wheel supports for transferring movement of one of the first and second pedals to both of the first and second wheel supports to rotate the first and second wheel supports in unison respectively about the first and second axes.

Abstract: A frame assembly removably mounts a coach member thereon, wherein the frame member assembly includes spring members to cushion the coach member mounting to the frame assembly, with the frame assembly further including first and second harness tubes to accommodate pivoting of a torso harness worn by an individual transporting the carriage structure.

Abstract: A vehicle suspension adjustment mechanism comprises pairs of plates having mutually complementary annular ribs and grooves for mutual interengagement to facilitate rotation of the pairs of plates with respect to each other. One of the pair has an enlarged semicircular aperture and the other of the pair has a smaller circular aperture of the same diameter as the trailing arm pivot bolt. The alignment position of the trailing arm relative to the vehicle frame is adjusted by rotating one of the plates relative to another of the plates.

Abstract: There is disclosed in one aspect, a self-aligning sulky with independently pivotable wheels which may be pivoted through a full 360 degree rotation. The pivotable wheels provide a sulky that provides less rolling resistance and greater resistance to tipping. In another aspect, the racing sulky is provided with steering means to alter the orientation of at least one of said wheels relative to the frame of said sulky. In yet another aspect, a suspension means for the wheels is provided.

Abstract: A two-wheeled cart for training trotters, wherein the cart frame comprises two longitudinal rigid thill members, which at a central part thereof are pivotally connected through a cross connecting member to be vertically rotatable in relation to each other, wherein each wheel is individually resiliently suspended at a rear part of the respective thill member, and wherein a seat supporting cart member is separately resiliently suspended by the cart frame. A device for adjustable loading of the cart comprises hydraulic pump means arranged to load the wheels.