Abstract:
A housing for an automatic door operator comprising a header section, a closing section and a terminal section. The header section includes two legs and a connecting leg which connects the two legs to one another. One of the two legs includes an end portion having a ball projection and an undercut. The closing section includes a ball projection and an indentation at one end and the terminal section at the other end. The closing section is removably attached to the header section through the engagement of the ball projection of the closing section with the undercut and the engagement of the ball projection of the one of the two legs and the indentation. The housing serves to house mechanical and electrotechnical components for the automatic door operator.
Abstract:
A runner or guide rail for a running mechanism for suspension-mounted dividing walls or partitions. The runner or guide rail is configured as a box-shaped hollow section comprising two U-shaped sections with their U-limbs pointing towards each other. A part of the runner or guide rail is detachable in order to create an inspection opening. This detachable part of the runner rail comprises a web of a U-section and a corresponding U-limb, said U-limb delimiting the guiding slot which a supporting member fits through.
Abstract:
A roller mechanism for a sliding door that slides along a lower track. The roller mechanism includes a rigid bracket member so that it may be attached to a sliding door, a roller housing that contains a roller and that is vertically adjustable within the bracket member, and lower track engaging means that are releasably retained within the lower track. The lower track engaging means comprises a pair of leading and a pair of following track retainers. One of the leading and one of the following track retainers are rigid and capable of supporting the sliding door when the roller is removed from the lower track while the other of the leading and following track retainers are flexibly resilient such that they may be displaced to allow for the insertion and removal of the lower track engaging means into and out of the lower track.
Abstract:
A door system includes a sill with a ledge extending across the bottom of an opening to a bathing enclosure and with a raised lip along an exterior side of the ledge. A pair of parallel tracks are above the opening with a first door suspended from and freely slidable along the first track above the ledge. A second door and a third door are suspended from and slidable along the second track being freely suspended above the ledge. A pair of door guides are attached to the first door and engage the other doors to prevent the doors from swinging into each other. Similar door guides are attached to the second and third doors and interlock with one of the door guides on the first door to prevent the doors from sliding entirely past each other. A stop member is attached to the sill and retains the doors above the ledge between the stop member and the raised lip. Detent blocks also are disclosed for holding the doors in a closed state.
Abstract:
A reciprocating elevator cab door is mounted on a guide track assembly which is fixed to the cab. The cab door is provided with guide rollers which travel along the upper surface of the guide track as the door opens and closes. The door is also provided with at least one upthrust roller which engages the lower surface of the guide track so as to stabilize the door against rocking motion as it moves back and forth over the guide track. The upthrust roller is preferably spring biased against the guide track. Use of the upthrust roller allows greater flexibility of door drive systems.
Abstract:
A security assembly for a sliding glass door of the type movably fitted within a generally rectangular supporting frame structure wherein a bottom sash includes an open channel having rollers therein for rollable engagement with a rail extending along the length of a sill of the supporting frame. Two pair of J-shaped fittings are removably attachable with a lower edge of the bottom sash at opposite ends thereof such that a hooked portion of each fitting extends upwardly within one of two longitudinal grooves formed on opposite lower sides of the rail thereby preventing lifting and removal of the door from its fitted position within the supporting frame structure.
Abstract:
An arcuately adjustable roller and corner key for sliding screen doors comprises a corner key having a hollow portion to receive a roller which is mounted on an axle. A pair of aligned arcuate slots in spaced sides of said hollow portion allow adjustable movement of said roller so that it can be used to form a right or left corner connector.
Abstract:
Broadside displacement of sliding patio doors from their building framework for removal from the threshold track upon lifting of the doors in attempts at unauthorized entry is prevented with the use of downwardly-extending leg portions at each side of the door roller wheel assemblies, which leg portions extend downwardly of each side of an upstanding threshold track projection upon which the roller wheels ride. In one embodiment of the invention, the roller wheel assembly leg portions terminate in mutually inwardly-directed hook portions received in slightly spaced relation below rectangular shoulders defined by a rounded head formed along the upper end of the upstanding track projection, thereby preventing removal of the roller wheel assemblies from the threshold track for unauthorized entry.
Abstract:
Corner connectors for sliding doors which connect stiles and rails of the doors and carry upper and lower guide arms are improved by making the arms detachable. The arms are connected to the connector bodies by T-bars passing through T- or L-slots in the same so that the latter may be removed from the bodies at one end of their travel. The modified connectors are simpler to manufacture and reduce assembly and inventory problems.
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.