Abstract: A coupling is established between a buoyant body and a submerged anchor, by drawing down an internal bush until it is aligned between the lower ends of a pair of holes through upstanding parallel cheeks secured to the anchor. The holes have larger lower ends than upper ends. A pin is then inserted through the bush; and when the buoyant body is released, its buoyancy draws the coupling up until the pin lodges in the upper ends of the holes through the cheeks attached to the anchor.

Abstract: A modular building structure is assembled from a number of modular elements which form floors, walls, pillars and beams, each modular element comprising an internally reinforced block having external eyes or loops integral with the internal reinforcement and interlinked by linking elements which engage in superimposed eyes or loops of adjoining modular elements to tension the respective internal reinforcements and brace the modular elements together to form a rigid structure.

Abstract: A cylindrical metal pin used to connect and permit the relative rotation of two mechanical parts, is held and prevented from relative longitudinal motion by means of a flanged, slotted, locking collar and bushing.

Abstract: Locking means for a piston pin is loosely mounted in the bosses of a piston and which piston is larger in outside diameter than the external distance between the bosses. At least one angled locking pin having one arm secured in the boss and extending approximately parallel to the axis of the boss is provided and the other arm of the locking pin is bent so as to extend before the opening of the boss.

Abstract: A separable link connector particularly suitable for detachably connecting omponents of a parachute harness, the connector being essentially U-shaped and having an easily removable end cap including a yoke-shaped latch member which straddles the arms of the body and enables the end cap to be locked in place by a single recessed bolt extending through the end cap and anchored in the latch member. The invention presents a more reliable and maintainable means for insuring that the removable end cap remains in place during deployment.

Abstract: A hinge pin construction including a pin adapted to journal an arm or the like, an annular wedge member associated with one end of the pin, a collet receivable on the wedge member, a bolt extending through the collet to be threadably received in a bore in a pin, the bolt also being threadably received in the collet. The threads in the collet have a lesser pitch than the threads in the bore so as to provide a differential action to properly seat the collet on the wedge member with a minimum of friction.

Abstract: A low cost universal joint is disclosed, and the method for making the same, in which the smaller cross pin is transversely deformed in the region of intersection thereof with the main pin. In one embodiment, the transverse opening in the main pin is offset slightly from the center of the pin toward one end thereof, and pressing the main pin into a seated relation causes the slight deformation of the cross pin, thus capturing the pins in place. In another embodiment, the main pin is hollow, and the portion of the cross pin within the walls of the main pin is transversely deformed by inserting a punch through one end of the main pin and striking the exposed portion of the cross pin within the main pin, thus performing the transverse deformation and locking the pins in assembled relation within the universal joint.

Abstract: A force transmitting connection for interconnecting a pair of members to transmit force therebetween includes a pair of spaced apart brackets secured to one of the members and disposed on opposite sides of the other member with each of the brackets having an open-ended substantially U-shaped slot formed therein. A force transmitting device is connected to and projects outwardly from the other member and is nested within the U-shaped slots. A retainer apparatus bridges the space between the brackets and is removably secured to the brackets and has a pair of spaced projections which are disposed on opposite sides of the other member and extend into the slot embracing the force transmitting device to retain the force transmitting device within the slots.

Abstract: This invention relates to a new billiard ball rack for holding billiard balls, for playing billiards, pool or any other game utilizing billiard or pool balls in which the rack is formed of three arms interconnected together in a triangular shape by rotating hinges at two of the angles of the triangle and a ball and socket joint at the third angle which is adapted to pop open upon insertion of the last ball. Each hinge is composed of a dowel rotatingly supported within a washer assembly. Located about each hinge is a biasing spring exerting a continuous bias tending to position the rack in the closed position.

Abstract: A mounting arrangement for mounting a ballast transformer to a structural support member. As employed in accordance with the invention, the ballast transformer has an opening through the core portion thereof. A pair of L-shaped mounting members are mounted to the ballast transformer by means of a pair of elongated, compressible mounting pins, commonly known as "rollpins," which are driven through openings in the vertical portions of the L-shaped mounting members into opposite entrances of the opening in the ballast transformer. The mounting members are then secured to the structural support member by means of threaded fasteners which are inserted through openings in the structural support member and threaded into openings in the horizontal portions of the L-shaped mounting members. The threaded fasteners are selected to have lengths so that the threaded portions thereof will extend past the exposed ends of the mounting pins and be immediately adjacent thereto.

Abstract: A pivot pin or the like is retained in an aperture in a supporting structure by a removable locking element inserted by movement transverse to the axis of the pin into a position lying between one end of the pin and a fixed flange-like retaining element which is secured to the supporting structure adjacent the aperture. In the illustrated embodiments the end of the pin is partially cut away so as to form a notch for receiving the locking element.