Abstract: A device for providing a positive pushing or pulling connection between a bicycle pedal and the shoe worn by the cyclist, which includes a cylindrically projecting assembly to be attached to the pedal and a cylindrically recessed assembly to be fitted into the sole of the shoe. The recessed assembly is provided with radially inwardly directed lugs which can be received into a series of peripheral L-shaped slots in the assembly attached to the pedal so that by partial rotation of the foot a bayonet-type connection is made between the cyclist shoe and the pedal.

Abstract: The invention relates to illuminating spectacles with variable magnifying power, essentially comprising, in combination, a frame 1, provided with removable illuminating means, particularly by cold light, composed of light conduits 8,9 resiliently engaged in grooves 10,11 provided on the top of the frame and on the inner edges of the frame on either side of the nose, and spectacle lenses each separately provided with a small "zoom" lens 4,5 the illuminating end of said illuminating means being substantially in the axis of vision of the working field. These spectacles are useful in endoscopic micrurgy, various medical fields, in jewelry, electronics, dentistry, and for making precision assemblies and the like.