Abstract: A rotary atomization apparatus for making metal powders from liquid metals comprises an atomizer disk having a concave top surface for receiving a flow of molten metal thereon. The disk is preferably made from a high strength zirconium-containing copper base alloy. The disk is driven by a surrounding drive portion thru a radial spline-type connection. Higher rotational speeds than the prior art are the major advantage of this invention.

Abstract: A composite game racket having improved stiffness and uniformity and method of making same. Rackets are light bats consisting of a netting stretched in an open frame attached to a handle and which are used for striking the ball in tennis and similar games. The racket comprises a shell with a high strength fiber reinforced plastic facing laminated to each face of the shell. A preferred fiber orientation in the novel facing is disclosed. The facing is made by a method including steps of arranging a resin impregnated fiber tow in a mold, placing resin impregnated fiber cloth sheets over the tow in a specific selected arrangement and curing the resin under pressure in the mold. The shell may be internally recessed in a truss-like pattern to provide lightness with strength. The handle of the racket includes a pair of plastic pallets secured to the handle portion of the shell and covered with a covering material, such as a thin leather strip winding.