Abstract: A composite material, particularly useful for prestressing concrete and in stay cables for cable-stayed bridges and other such uses where strength, corrosion resistance and resistance to fatigue failure are particularly important, comprises high strength wire strand coated and impregnated with an impermeable and strongly adherent epoxy based resin. The impregnated and coated epoxy increases the flexural stiffness of the composite against bending fatigue in the areas of the anchorages in dynamically loaded situations and reduces relative movement and rubbing of the wires of the strand so as to reduce fretting and hence fretting fatigue, the principal mechanism for failure in dynamically loaded strand.

Abstract: There is disclosed a golf putter in which a relatively thin wheel-like member is mounted on a horizontal axis in a slot along the center of the club head, the wheel-like member extending below the bottom face of the club to provide a ground engaging point and being visible along the center of the club at the top face to provide a sighting line--the wheel-like member being adapted to be fixed for use in play or rotatable for use in training.