Alignment and stabilizing clip for acoustical tile installation

An edge-aligned, joined, and stabilized starting row of tiles in a suspended ceiling system, comprising in combination, a plurality of ceiling tiles, substantially L-shaped means mounted on a wall for supporting the tiles at their edge portions which are adjacent the wall, movable means having a cross sectional shape substantially in the form of an inverted T for supporting the edges of said tiles which are opposite those adjacent the wall, clip means mounted on said tile and extending between and along adjacent opposed edge portions thereof into contact with the vertical portion of said wall-mounted support means, said clip means comprising an elongated body member having a substantially rectangular base portion positioned on the surface of the tile adjacent an edge portion thereof which opposes an adjacent tile and, a flange integral with said base portion and extending along the entire length of said body member from one edge only thereof in a plane perpendicular to that of the base, said flange being of lesser mass and width than the base and extending between opposed edge portions of the tile, first and second prong means each comprising a pair of prongs extending from a portion of said flange adjacent the end thereof remote from the wall-mounted support means, the first pair of prongs being separated by the second pair of prongs with approximately equal spacing between all prongs, said first and second prong means extending from said flange in opposite directions and in vertical planes perpendicular to said flange and said base into opposed edge portions of adjacent tiles, the support-contacting end portion of said flange being devoid of prongs.