Abstract: A corner clamp joining a pair of generally orthogonal elongated members is formed by slicing a generally C-shaped frame form an aluminum alloy extrusion so that the frame includes a member spanning opening with a pressure pad defining one extremity of the opening and an opposite opening extremity face including a threaded hole and a threaded shaft passing through the threaded hole and helically movable therein toward and away from the pressure pad. The members are joined by clamping them together between the pressure pad and the end of the movable shaft. One elongated member may be an I-beam and the other a U-shaped channel with the U opening away from the I-beam. The slice is taken obliquely to the direction of elongation of the extrusion so that the pressure pad has a non-rectangular generally parallelogram shaped face. When assembled, one edge of the pressure pad face extends generally parallel and adjacent to an inner U surface.

Abstract: Rest room partition mounting brackets are formed from two of four possible extruded bracket halves which may be joined in pairs to form any of twelve different brackets for mounting rest room separating panels. The bracket halves are extrusions of generally uniform cross-sectional configuration, but have periodic screw-accepting holes and opposed periodic notches which notches are alignable with one another to form central mounting screw accepting apertures. By selecting two of four possible bracket halves, each of three different bracket configurations may be created. A simple U-shaped bracket, a U-shaped bracket with one outboard ear, or a U-shaped bracket with two outboard ears.

Abstract: A clamp for supporting a bicycle is formed of two like halves joined by a single central bolt. The clamp halves are urged apart by a single central spring surrounding the bolt. Each half of the clamp has a pair of concave cylindrical segments, one for receiving a tubular member of a bicycle and the other for receiving a tubular portion of a bicycle support rack. Each cylindrical segment is lined with a resilient protective material to prevent damage to the bicycle frame as well as to insure a firm grip on the tubular members and allow the clamp to accommodate a range of tubular diameters.