Abstract: An article, such as a swing arm for a glider chair, includes an elongated structural member made of high strength aluminum, and a pair of cast-in place preassembled bearings located in opposing ends of the structural member and facing in opposite directions. The preassembled bearings each include a first cup-shaped bearing member defining an outer depression for secure engagement by the material of the structural member and an inner ring-shaped ball race or track. The preassembled bearings each further include a second tubular bearing member defining an outer ring-shaped ball race or track and an internal passageway. Ball bearings are positioned between the first and second ring-shaped races for movably supporting the second bearing member on the first bearing member. Lubricant can be added through the passageway in the second bearing member into the area of the ball bearings for lubricating the ball bearings.

Abstract: Method of manufacturing an acute angled vessel connector adapted to be mounted in a vessel or pipeline and to provide an angled connection from such vessel or pipeline to a branch pipe wherein the vessel connector includes a generally cylindrical main body having integrally formed therewith a contoured mounting rim, the main body having a bore therethrough which is directed at a pre-designated acute angle with respect to the annular mounting rim wherein the method includes the steps of providing an offset forging of a particular shape, machining an interior body bore on a central axis separate from the longitudinal axis of the forging itself, facing one end of the forging and milling the other end with a curved undersurface of the same radius of curvature of the vessel or pipeline in which the connector is to be mounted and thereafter completing the machining of the outside surface and otherwise forming the contoured mounting rim of a generally elliptical shape.

Abstract: An acute angled vessel connector including a generally cylindrical main body having an interior body bore and an exterior wall which is at least in part cylindrical and a contoured mounting rim formed integrally with one end of the main body, the mounting rim being generally elliptical in configuration and being positioned at a predesignated acute angle with respect to the central axis of the interior body bore, the mounting rim being adapted for welding in a flush position in an opening in a vessel or pipe such that the generally cylindrical main body and the interior cylindrical body bore extend at a predesignated acute angle with respect to the surface of such vessel or pipeline.