Abstract: A grouser structure for use on an outer surface of a continuous track belt to provide traction and shock absorption, the grouser structure including a grouser body that defines a grouser chamber and a spline element positioned within the grouser chamber. In one preferred embodiment a shock absorption gap is formed between the inner chamber peripheral surface and the outer spline peripheral surface. In another preferred embodiment the base of the grouser body is solid or contains other structure to prevent the first body side leg and the second body side leg from spreading. In yet another preferred embodiment the spline element is a solid reinforcement spline element. In still another preferred embodiment the spline element is associated with an extension section to which an ice cleat may be functionally attached.

Abstract: A towing vehicle having power-driven entered rear drive wheels. A towed attachment frame with lateral trailing wheels is coupled to the towing vehicle. A continuous belt on each side of the vehicle is trained over a drive wheel and a trailing wheel. A row of cleat structures is secured to the outer surface of a belt. A cleat structure includes a central expanse and elongate extension sections extending outwardly from opposite ends of a central section. Extension sections protrude beyond opposite lateral margins of a belt. A cleat structure includes an element plastic clear body, and spline elements secured by fasteners to a belt clamp against shoulders in a cleat body to hold it in place.

Abstract: An exercise machine having a beam pivoted off center, with a weight movable along the beam under control of a motor. A cable connects the beam to a handle or other device for assumption by the excerciser of the load created by the weight. The weight can be moved over center for counterbalancing purposes.