Abstract: A folding device stroller includes a positioning seat securely mounted to an upper end of each of two front members and a retainer seat securely mounted to an associated end of a handle of the stroller, the associated end of the handle being pivotally mounted to the positioning seat. The positioning seat includes a transverse positioning ring formed on an upper end thereof and a spring-biased button partially received in the positioning ring. The retainer seat includes a cutout defined therein thereby forming a handgrip and a transverse bore defined in a lower end thereof through which the button is passable. The button is biased to a position partially received in the bore to retain the stroller in an extended position, and the stroller is foldable when the button is pressed inwardly to disengage from the bore.

Abstract: A method and apparatus for determining the facet angles of a gemstone includes structure for rotatably mounting a gemstone along the optical axis of the gemstone. A collimated beam of light is directed toward a facet of the gemstone, such that the facet reflects light. A scale is mounted parallel to and spaced apart from the gemstone optical axis. The scale includes indicia indicating angular measurements, such that the facet reflected light impinges on the scale. The location of the facet reflected light on the scale indicia indicates the angle of the facet.

Abstract: A candolier holder, preferably made of molded plastic, having cooperatively engageable frame, lateral support and suction cup members, the frame member desirably having a hinged, outwardly foldable, unitarily molded base support member, and bosses adapted to retain the base support member in its outwardly folded position.

Abstract: A modular dock system (10) having a plurality of interconnected dock modules (12), each module having a rectangular frame with means (62) for supporting a metal grate (34) around its periphery, a drain pan (60) suspended from the frame beneath the grate, and an angular leg (24) at each corner of the frame, the modules being joined by vertically spaced bolts (64) interconnecting the abutting legs of adjacent modules. The system preferably includes a secondary containment system (14) having flow lines that gather spillage or leakage from the drain pan (60) of each module. A modular dock bumper assembly (16) is also disclosed for use with the modular dock system (10).