Abstract: A pedal plate (13) for a cycle safety pedal (26) is releasably attached to the sole (12) of a cyclist's shoe in the ball region and has a running surface which extends parallel to the attachment region on the sole. The attachment region (11) of the sole (12) is arranged recessed by the thickness of the pedal plate (13) relative to the base surface of the sole (36) around the attachment region (11), so that the bottom of the pedal plate lies substantially flush with the bottom of the sole.

Abstract: This crank-gear includes cranks centered on a first axis and respectively mounted on shafts journalled into one another in the bicycle crank-gear case. Each shaft bears a guide cooperating with sliders which are fixed to rotate with the sprocket plates actuating the chain with an orbital movement around a second axis. In view of the offset between the first and second axes and the relative arrangement of the cranks and guides the cranks are aligned with one another only when horizontal. Furthermore, when one of the cranks is at bottom dead center the other crank is forwardly offset by a certain distance relative to top dead center. An improved pedalling efficiency is thereby obtained.

Abstract: A thermostatic switch with a pair of switch contacts opened and closed by a first pivotably mounted lever urged in one direction by a spring and in the other by a bellows to alternately open and close the switch to operate a compressor. A manual switch can be rotated to vary the spring force through a cam follower and is also movable in and out of the housing. When moved into the housing a second lever is pivoted to engage the first lever and the cam follower so the force required by the bellows to pivot the first lever is such that defrosting occurs.