Support mechanism for a mirrored surface or other arrangement

Claim 1

A mechanism for supporting first means including a planer surface for movement relative to a vertical plane defined by particular intersecting x and y axes which extend horizontally and vertically, respectively, said mechanism comprising: (a) second means including a plurality of segments of an annular surface which forms part of a sphere whose center defines the intersection of said x and y axes, said annular surface defining a z axis extending through the intersection of said x and y axes perpendicular to said vertical plane; (b) third means connecting said planer surface including first means with said second means such that said planer surface is positionable within said vertical plane and is itself intersected by said z axis at a particular point thereon, said third means including bearing means disposed between said first means and said segments of said annular surface of said second means for allowing said first means to move in any direction on said annular surface segments including certain specific directions which allow said planer surface to pivot back and forth to a limited extent about both said x and y axes relative to said vertical plane; and (c) fourth means interconnecting said first and second means and cooperating with said third means for limiting the movement of said first means to said certain specific directions and thereby limiting the movement of said planer surface to said back and forth pivotal movement about said x and y axes, whereby said particular point defined at the intersection of the z axis with said planer surface remains substantially fixed at the intersection of said x and y axes and within said vertical plane.