Abstract: A balance beam utilizing a conventional beam member with pivotally mounted leg members. The leg members are mounted in a clevis secured to the bottom surface of the beam by a pin which extends through aligned bores in the clevis and leg members. The leg members have floor support members, upwardly extending sections rigidly secured to the center of the floor members, and horizontal sections rigidly secured to upwardly extending leg sections. Secured to the horizontal leg sections are removable resilient bumpers that engage the lower surface of the beam. When a gymnast lands on the beam, the weight of gymnast compresses the bumpers moving the beam to a lower horizontal position. The immediate recovery of the bumpers imparts some impetus to the gymnast as the gymnastic routine continues.

Abstract: A ball pitching machine includes a head assembly for ejecting a ball therefrom, operably mounted on a vertically extensible piston to permit selective vertical adjustment of the head assembly on a base assembly. The base assembly includes an upright tubular mast within which the piston is slidably journaled, the mast having a plurality of legs supporting the mast above the ground. A lock mechanism on the mast permits selective securement of the piston within the mast. The head assembly has a mounting bracket rotatably connected to the forward end of an elongated handle to permit selective rotation of the head assembly about the axis of the handle. The handle has a shaft rotatably mounted in a bracket on the upper end of the piston, permitting selective rotational movement of the handle about the shaft on the piston.

Abstract: The balance beam of this invention has an elongated beam member having opposite ends, a center portion, a top and a bottom, with legs on the bottom thereof adjacent the ends. Each leg has an upper and a lower end. A resilient support and trolley assembly is mounted within the elongated beam adjacent the ends thereof with each support assembly having a depending arm member extending downwardly therefrom with each arm member being pivotally secured to one of the upper ends of the legs. The legs extend downwardly and outwardly from the arm member in the plane of the beam member so that the lower ends thereof dwell substantially under the ends of the beam member. Elongated links are pivotally secured by their ends to one end of the beam and one end of each of the legs to hold the beam member in an erected elevated horizontal position. The resilient support and trolley assembly is longitudinally movably positioned within the beam and has two end blocks rigidly secured to a trolley.