Abstract: A holding apparatus for use in combination with a working machine, where such loading apparatus has a first quadric parallel link body attached to the working machine and adapted to be oscillated within a vertical plane; a second quadric parallel link body attached to the first link body through a L-shaped member for oscillating motion therewith, and having a holder arm assembly effective to hold a workpiece; and a mechanism adapted to reciprocate said holder arm assembly of the second link body.

Abstract: An apparatus for accumulating materials on a shuttle conveyer has a plurality of longitudinally spaced apart dogs vertically rotatably supported on a longitudinally moving body on a shuttle conveyer frame. Each of the dogs is rotatable between a lowered position and a raised position in which it projects above a carrying surface to engage a material on rollers forming the conveyer. A magnet is provided for each dog to maintain it in its raised position. A plurality of detecting levers are vertically rotatably supported on the conveyer frame for detecting any material when such material rides on one end of the lever which projects above the carrying surface, and releasing a corresponding dog into its lowered position.