Abstract: A three speed winch has two alternative inputs. The first input shifts the winch between first, second and third gear trains by successive reversals of the direction of an input member. The alternative input drives the winch at two different speeds responsive to rotation of an input member in opposite directions. The alternative input may be connected to drive the winch in either first or third gear so that the winch provides seven gear ratios. There are four pairs of gear ratios available by simple reversal of direction of an input, and the winch has three different ratios between the gear ratios of the different pairs.

Abstract: A canting adjustment for ski boots and a method of canting in which the ski boot contains a plurality of wedge shaped removable innersoles having generally equal and opposite wedge angles to allow a wide range of canting angles.

Abstract: Novel hot gas engines and heat pumps are provided which operate on an improved cycle related to the Stirling cycle. These hot gas engines and heat pumps use at least two separate heat exchanger assemblies and a plurality of valves to control fluid flow through the heat exchanger assemblies.

Abstract: The subject invention relates to a new and improved airfoil design. More particularly, an airfoil design is disclosed which improves efficiency by taking advantage of the vortex created at the wing tips.

Abstract: A method of fitting ski boots to a skier by standing the skier in the boots on orthotics with the skier's feet ankles and legs unconfined by the boots, recording the relative lateral locations of the skier's knees and boots, repeating the process with the skier's feet supported on the orthotics and confined by the boots, and adjusting the boots to provide the same relative lateral locations of knee and boot.