Abstract: A portable, collapsible practice device which forms an enclosure for containing balls which are pitched, hit, kicked or batted into the enclosure is described. The device is attached to and supported by a permanent backstop or other structure at the practice area. The device comprises a pair of frame members comprising pivotally connected support, netting or other foldable material which is suspended from and between the supports thereby forming the enclosure, means for attaching one end of the supports to the permanent structure and wires or ropes for maintaining the rigidity of the device.

Abstract: A power tool cutting guide for making plural parallel cuts or arcuate cuts in a workpiece has a member, rotatable within the circular track of a frame, which can be fixed in any angular orientation relative to the workpiece, a guide assembly joined to the rotatable member on which a tool support plate can slide between positionable stops, and a ratchet arm with an attached pawl which engages the serrations in a rack so as to incrementally move a workpiece along a fence. The guide also features a spring-urged retention arm which holds the workpiece firmly against the fence during cutting and means for automatically withdrawing the cutting tool from the workpiece surface upon completion of the cut.

Abstract: An adjustable template for a lathe has a pair of pivotable arms extending from a circular or partially circular center post which are disposed so that the edge of each arm lies tangential to the circumference forming a pattern for the stylus of the automatic feed to trace whereby the cutting tool machines two angles with respect to the center line and a radius therebetween in the workpiece. Adjustment of the arms determines the angles and the diameter of the stylus determines the radius.