Abstract: A self-securing box is formed from a blank which is cut, scored, folded and secured to define an open ended tube having a top with foldable outer end flaps, a bottom with foldable inner end flaps and sides with foldable end tabs. Each of the tabs adjacent the outer end flaps have an acute angular edge portion therein. The respective tabs, inner flaps and outer flaps at opposite ends of the tube are folded successively 90 degrees into engaging registry. The sides of the outer flaps define lock edges which are included at an acute angle so as to normally overlap the tab edge portions and are adapted for manual flexing interlocking inward projection so as to retainably engage interior portions of the adjacent tab at the edge portion. A hollow preformed simulated ribbon of stiff material is rectangular in longitudinal cross-section and is formed as a closed loop so as to longitudinally extend around the top, bottom and folded end flaps.

Abstract: An artificial hand and forearm comprises an elongated housing open at its rear end adapted to receive the stub of a human forearm and adjacent upper arm, adapted for securing thereto. A plate within the housing pivotally mounts a series of finger assemblies within the housing, with said finger assemblies projecting from the housing. A thumb assembly is spaced from said finger assemblies and pivotally mounted upon said plate, with the thumb assembly projecting from the housing and opposed to the forefinger assembly. A cam shaft is journalled upon said plate and mounts a series of spaced cams respectively registering with the inner ends of the finger assemblies. One cam includes a pair of opposed cam surfaces for simultaneous registry with the forefinger and thumb assemblies. A spring biases said finger assemblies into an open position against said cams. A reversible electric motor within the housing has an output shaft geared to the cam shaft.