Abstract: An elevator cab having a drop ceiling suspended from the cab canopy. The drop ceiling includes a skeleton frame and a plurality of metallic pan members carried by the frame. Each pan member includes a sheet metal member having a lower decorative side viewable from inside the cab, and an upper side having reinforcing and stiffening brackets to which one or more down lights are attached and centered over openings in the sheet metal member. The upper side also carries slidable clip members along the edges of the sheet metal member, with the clip members, when actuated from a retracted to an extended position, securing the pan member to the frame by sandwiching a frame element between the lower sheet metal member and the upper clip members. The sheet metal members of the pan members butt tightly together to conceal intermediate angle members of the frame, and the outer edges of the pan members conceal perimetrically arranged angle members of the frame.

Abstract: A lightweight elevator cab constructed essentially of aluminum, including upstanding side, rear and front wall portions. Perimetrically flanged, rectangularly shaped aluminum wall panel members have their adjacent flanged edges joined together to form a side wall portion, and in most cases the rear wall portion as well. The rear wall may also be constructed essentially of glass panels, if desired. The lower flanges of the aluminum wall panels are attached to a support platform, and the upper flanges support a canopy formed of aluminum honeycomb sandwiched between two flat aluminum sheet members. The cab front includes a stationary aluminum portion which forms a wiring duct, and an aluminum swing return panel punched to receive car fixtures. The car door includes front and back perimetrically flanged aluminum pan members telescoped snugly together with a reinforcing rib of one pan in contact with the opposing pan member.

Abstract: An elevator cab having a plurality of retractable pad buttons which are actuatable between retracted and advanced positions. In the retracted position, a head portion of the pad button is flush with the inner surface of a wall member of the cab, and in the extended position the head portion extends into the cab to provide buttons for supporting protective pads.

Abstract: A method of constructing a mitered, unwelded architrave. Two right angle frames or brackets are constructed, each having first and second legs disposed 90.degree. relative to one another. First and second post sections and a head section are formed with elongated recesses, and appropriate ends mitered. The post and head sections are telescoped on to the two brackets and secured thereto, such that the frames support the architrave at each right angle corner, maintaining tight, butted, aligned miter joints without welding.

Abstract: A coreless, fireproof, hung panel assembly which includes a metallic sheet panel member having first and second major sides, stiffened by a plurality of metallic rib members on the second side. A plurality of metallic support members on a wall cooperate with certain of the metallic rib members, such that that panel member is securely and tightly held against the wall. The first side includes a decorative film, or laminate, suitably fixed thereto.

Abstract: A slidable door assembly for opening and closing an opening or entranceway including a hanger plate having hanger and up-thrust rollers thereon, a door panel fixed to the hanger plate, and a support structure disposed above the door opening. The support structure includes a hanger track upon which the hanger rollers travel, and a horizontally oriented guide or bearing surface which co-acts with the up-thrust rollers. A door stabilizer is fixed to the door panel, adjacent to its trailing edge, with reference to its closing movement, which includes a roller whose rotational axis is disposed outside the vertical projection of the door panel. The roller of the door stabilizer co-acts with a guide surface, which may be the same guide surface used by the up-thrust rollers, to protect the up-thrust rollers from excessive force, and prevent untracking of the hanger rollers, when a force is applied to the leading edge of the door panel.

Abstract: A hung panel assembly which enables a decorative panel member to be quickly and securely mounted on a wall. The mounting arrangement includes rotatable side guide members, and support members, which cooperate to provide a secure mounting arrangement while facilitating quick removal, reversal and rehanging of the panel.

Abstract: An illuminable sign which includes a panel having an opening therein. A lens assembly, which includes at least one magnetic member on its outer periphery, is mountable in the opening from the front side of the panel. The lens assembly is removably secured in the opening via one or more permanent magnets mounted adjacent to the opening on the back side of the panel, which attract the magnetic member, or members.

Abstract: A decorative drop ceiling including a panel having a plurality of openings therein disposed between a source of light and an area to be illuminated. A light transmissive lens is disposed in each of the openings. Each lens has a predetermined thickness dimension, which is not dictated by the thickness of the panel. The lower face of each lens is co-planar with the lower surface of the panel. The periphery of the lens is recessed, and fasteners, disposed in the recess, fix the lens in the opening.

Abstract: A handrail assembly adapted for mounting between two spaced parallel surfaces. The handrail member and its mounting brackets are cooperatively configured to enable the handrail member to be supported by the brackets while concealing the brackets and the means which locks the handrail member and its mounting brackets in assembled relation.

Abstract: A door assembly, and method of constructing same, including a door, and a wall panel having an opening sized to receive the door. The door is mounted in the opening of the wall panel on concealed, tamper-proof pivot hinges. The pivot hinges are held captive to the door via elongated fasteners during assembly, with the elongated fasteners subsequently functioning as concealed pivot pins about which the door is swingable.