Abstract: A suspended metal ceiling system having a grid of support members suspended from a structural ceiling and a plurality of ceiling panels positioned on the grid of the support members having a locking mechanism for connecting the ceiling panels to the grid actuatable from a side wall of the ceiling panels.

Abstract: A light cove (20), which is adapted to be secured to a wall (46), includes elongated top and bottom fastening devices (22) and (24), a light-transparent panel section (26), and a plurality of two-piece adjustable supports (28). A light fixture (82) with one or more bulbs (80) is positioned intermediate to the top and bottom fastening devices, and all three elements are separately securable to a wall (46) for accommodating any unevenness of the wall and to provide maximum adjustment among the three parts. The panel section is pivotally couplable to the bottom fastening device and can be articulated upwardly so as to position its end (50) adjacent to the adjustable supports. The supports include a strap (62) having projections (78) which can be snapped past a snap-in lip (58) to form a secure joint between the strap and the panel section.

Abstract: A panel, formed from a perforated face (102), is respectively concavely and convexly curved by seriatim stretching or contracting its flanges (104a, b; 156a, b). Such stretching and contracting is produced by placing the opposed flanges within jaw halves (110a, b; 166a, b) of a jaw mechanism (110, 166), by seriatim positioning of the paired flanges between their respective jaw halves, and by moving the jaw halves away from or towards one another. Jaw movement towards one another effects a stretching function. Jaw movement towards one another effects a shrinking function. Computerization enables the panel curving to be precisely controlled. The curved panel, as it exits from the panel curving machine (126, 148) is supported on rollers (146) or, more precisely, by a scissor apparatus (176). The scissors apparatus includes roller sets (242, 244, 246) which are positionable, relative to one another, to conform the roller sets to the curvature of the exiting panel.