Abstract: An article holder characterizd by a unitary construction forming a living hinge structure provided by integral sheet portions and sections coupled together across hinge lines to provide ease of mounting an article on and removing the article from the holder and to permit significant reduction in the number of the component members and elements and accordingly the production cost of the article holder.

Abstract: A yieldable highway swing sign is described which swings out of the way when struck by farm equipment or other objects such as wet snow from snow plows. The sign has a torsion bar which returns the sign to its original position after being struck. The sign has notches in its hinges to maintain its original position. The notches resist any displacement forces by providing an inclined plane of 40.degree. which must be overcome before the sign is displaced in an arc pivoting around the torsion bar. The displacement of the sign is limited to a 90.degree. displacement from the original position by the configuration of the hinges and is helped by the increased torque created by the torsion bar as the sign swings further from its original position.

Abstract: A portable metal detector of the treasure finder type, comprises a shaft on the forward end of which is a conventional detector head. Intermediate the length of the shaft is a handle to be grasped by the user, whose forearm at the elbow rests in an upwardly opening cradle at the rear end of the shaft. Depending from the rear end of the shaft is a squared stud that removably fits in a squared socket held by a double-acting spring to resist horizontal swinging movement of the socket in either direction. The spring and socket are mounted on a bracket on a belt worn by the user, and overlie his hip. In another embodiment, the belt has a projection that supports the detector both when the projection is disposed over the hip and when the projection is centered in front of the user. In that latter case, the uprights forming the cradle have rotatable sleeves thereon that are grasped by the hands of the user to swing the detector from side to side.

Abstract: A double-action hinge for single-hinge top-mounting flexible or semi-flexible doors, of a type mountable on an upright laterally-facing door jamb support, having an axis of hinge-pivot extending uprightly substantially parallel with a mounting door jamb support, with the upper hinge pivot being fixed to a point of and mounting for pivotal rotation as a hinge-mounted door swings to and from in double action through a doorway space framed by a door jamb, and the lower hinge pivot structure being mounted to move freely along an outwardly-extending elongated slot space of a slot-forming lower hinge-support structure permitting a lower end of the hinge axis to move-away from the door jamb support structure when the door swings away from a center position, and an abutting structure having spaced-apart surface portions adjacent the door jamb support structure being mounted on the lower hinge pivot structure fixedly such that the abutting structure turns as the hinge pivots as in opening the door one direction or the

Abstract: A radar loaded, hollow yacht mast is disclosed which is pivoted at the bottom to the deck by a tri-sectioned elastomeric torsion spring hinge assembly in which the torsion is produced by relative rotation between the inner section and the two outer sections. The torsional resistance of the hinge assembly prevents the mast from falling when the bolts and stays are removed and the restoring force in the spring elastomer when the mast is pivoted flat to the deck assists in raising the mast back into its upright position. A hollow, flanged mounting connecting the hollow mast to the movable section of the hinge assembly prevents sea water from entering the hollows. Provisions are provided for pre-loading the hinge spring with a torsional stress in either direction when the hinge is closed.

Abstract: Magnetic door hardware for closing swinging doors. Two magnets are axially aligned with the door post, and the magnetic fields of the magnets are aligned so as to produce a radial torque when the door is swung open. One magnet is attached to the door post, and the other magnet is attached to the door frame so that the radial torque produced by the magnets causes the door to rotate to the closed position.