Abstract: A reflector for a lighting unit and a lighting unit comprising the same is disclosed. The reflector has a generally concave surrface, at least a portion of which concave surface is a series of facets. Each facet has a reflective surface area which is convex. Overlap of the light reflected from the reflective surface areas of adjacent facets provides substantially even illumination of a lens or other object.

Abstract: An improved axle clamp is provided, particularly for use with composite material leaf springs, to securely fix the position of the leaf spring relative to a wheel axle or other suspension system member. The axle clamp comprises a rigid clamp base, a resilient wedge insert, a rigid clamp plate, and a resilient cover pad. The clamp base provides a bottom wall and substantially parallel side walls extending from the bottom wall to form a channel adapted to receive the wedge insert. The inner surface of at least one side wall of the clamp base fairs from both ends into a channel-widening concavity, preferably at the longitudinal mid-point of the channel. The wedge insert has a bottom wall and substantially parallel side walls extending from the bottom wall and forming therewith an inner channel adapted to laterally jacket a leaf spring.

Abstract: A vehicular spring leaf comprises a pultruded beam that has about 40-75% by volume filamentary solids of a first modulus and a remainder fraction comprising continuous organic solid of a second, lower modulus that binds together the filamentary solids. A first portion of at least about 80% by weight of the filamentary solids is a multitude of discrete, tensilely stressed filamentary solids, densely packed substantially uniformly throughout the organic solid and coextending the beam longitudinally in a plurality of planes that accept tensile or compressive stress, respectively, upon a flexure of the leaf that bends the beam. A second portion of up to about 10% by weight of filamentary solids is randomly oriented on a surface of the beam, and a third portion of up to about 10% by weight of filamentary solids is woven oriented substantially across one another in one of the planes.

Abstract: A new composition of matter comprises the product of the amassment of two or more arrays of glass roving or other suitable filaments, each of which array has been coated or impregnated with one of two complementary resin systems, preferably thermosetting polyester resin systems. Each such complementary resin system comprises substantially the same or functionally similar resin and each further comprises a curing agent, for example, in the case of polyester resin an organic peroxide, which curing agent differs from the curing agent in the other resin system. The resin system of each array further comprises suitable accelerator which is substantially ineffective to promote the curing agent of the resin system in which it is incorporated, but which does effectively promote the curing agent of the other, complementary resin system. Upon amassment of the separate arrays the two accelerators act synergisticly in the combined resin system.