Abstract: A maneuverable self-propelled cart having a drive assembly including independently suspended drive wheels for propelling the cart over rough or uneven surfaces. The drive assembly is comprised of a drive wheel carriage having at least two drive wheels. The drive wheel carriage may include a turntable or the like adapted to rotate the carriage about a substantially vertical axis relative to the frame of the cart. Each drive wheel may be independently suspended beneath the cart frame by a suspension apparatus so as to allow each drive wheel to individually engage a ground or floor surface.

Abstract: An improved snowmobile construction in which the entire power train from engine to track drive member is rigidly mounted in bearings in a cradle member, and the latter is resiliently mounted on the housing of the snowmobile. In one embodiment the snowmobile skis are also mounted on the cradle member. In a second embodiment the skis are mounted on the housing, and the forward portion of the cradle is additionally interconnected resiliently with the housing.