A method, system and device for controlling a door of a railway vehicle are provided. The method comprises: a door control instruction sent by a transponder is received when a railway vehicle draws into the station, wherein the door control instruction is used for determining a door of the railway vehicle at a platform side; and the railway vehicle is controlled to open the door of the railway vehicle at the platform side according to the door control instruction, thereby solving the technical problem that the door of a railway vehicle at the non-platform side may be opened by mistake by a driver due to human factors because the door of the railway vehicle at the platform side is manually opened when the railway vehicle stops.

A permanent magnet linear motor. The permanent magnet linear motor including a primary comprising a magnetically permeable core having a first face surface on a first side of the core a plurality of teeth forming a plurality of slots on the first side, and a plurality of multi-phase windings wound to have segments thereof in the slots forming a plurality of magnetic poles at each of the first face surfaces; a permanent magnet pair of opposing polarity configured to produce magnetic flux and cause the primary to exert a force on the secondary when the plurality of multiphase windings are excited by a multiphase source; and a passive ferromagnetic secondary adjacent to but spaced from the first face surface, the passive ferromagnetic secondary being moveable with respect to the primary.

An enclosure for waste material includes a movable front section and a stationary rear section. Movable intermediate sections may also be provided between the front and rear sections. Each section is formed by a frame with a rigid skin, with adjacent sections being sized so as to telescope with respect to one another. The front and any intermediate sections are rollable between an extended position to cover the waste material and a retracted position uncovering the waste material. A reversible electric motor may be actuated remotely or by a switch to open and close the enclosure. The enclosure protects the contents from the weather, from birds and other animals, and from unauthorized human access.

An economical bi-parting door assembly for an aisle between two rows of data center IT racks is disclosed which is easy to assemble, has no floor track or leveling requirements, and an overhead suspension and drive assembly for the left and right door assemblies. Guide ribs and channels can be provided for the door leaves at the lower portions of the leaves and mating features are placed on the leading faces of the leaves. Some features are designed to work specifically with a containment system frame for server cabinets.

A retractable bathroom door includes a fixed frame (1), a mobile frame (2), a first parallel pull string (3) and a foldable portion (4). The mobile frame (2) is perpendicular to the upper frame portion of the fixed frame (1) and horizontally moves in a frame range of the fixed frame (1). A frame portion at one side of the mobile frame (2) has a first hollow structure (13). A first upper pulley (5) and a first lower pulley (6) are respectively disposed at a top end and a bottom end of the first hollow structure (13). The first parallel pull string (3) has two ends which are connected and wound around the first upper pulley (5) and the first lower pulley (6) in a crossover manner. An upper rail and a lower rail are respectively disposed on the upper frame portion and the lower frame portion of the fixed frame (1). An upper rack (9) and a lower rack (10) are respectively disposed on the upper rail and the lower rail. Two ends of the upper rack (9) and the lower rack (10) respectively enter the first hollow structure (13) from a first upper opening (7) and a first lower opening (8) of the first hollow structure (13), and are connected with the first parallel pull string (3). A length of the upper rack (9) disposed on the upper rail is as same as a length of the lower rack (10) disposed on the lower rail. The foldable portion (4) is disposed between two mobile frame portions of the mobile frame. The retractable bathroom door is adapted for small space installation, has strong adaptability and stable moving.

A door apparatus for closing an access opening and to a parking apparatus equipped therewith. The door apparatus has two vertically aligned guide rails and an inner and an outer door element which are each movably mounted in/on a vertically aligned inner or outer guide of the guide rails. In a closed position, the inner door element is arranged in a first region of the access opening which is situated lower than a second region in which the outer door element is arranged. In an open position, the inner and the outer door element are arranged in a third region of the access opening which is situated higher than the first and the second region. Furthermore, the door apparatus has a locking element and a coupling element.

According to some embodiments, a railcar with a pair of sidewall assemblies and a hopper comprises a plurality of transverse discharge openings. The railcar comprises a sliding gate assembly coupled to the hopper to control the discharge flow of lading. The sliding gate assembly comprises a support frame coupled to the hopper proximate the transverse discharge openings. The support frame extends longitudinally along the sidewall assemblies. The sliding gate assembly further comprises a plurality of discharge gates slidably coupled to the support frame; and a gate actuator operable to slide the plurality of discharge gates between a closed position, where each discharge gate is disposed adjacent to each of the discharge openings to restrict the discharge flow of lading, and an open position, where each discharge gate is disposed between discharge openings to permit the discharge flow of lading.

A mechanism for conjointly operating a plurality of gate assemblies mounted on a hopper car having an elongated car body with sides and ends, and a bottom defining a discharge area comprised of a plurality of discharge openings. Each gate assembly includes a slide door arranged in operable association with one of the discharge openings. The mechanism operates the slide door on all the gates conjointly relative to each other. Methods for controlling the gravitational discharge of material from a hopper car are also disclosed.

An improved locking device is provided for one a livestock head gate in which two doors rollingly engaged on an overhead guide shaft for roving movement of said two doors toward one another into a closed position bracing a livestock animal between said doors and away from one another into an open position releasing said livestock animal. Primary and secondary shaft-receiving and locking members have respective first and second through-holes therein for receipt of the overhead guide shaft. A spring-receipt member is fixed to the primary shaft-receiving member for cooperation with a spring that tilts the primary shaft-receiving member into a locking position. The secondary movable locking member is retained beside the primary member in a manner enabling both tilting therewith and displacement relative thereto so as to bite onto the shaft at the perimeter of the second through-hole in the locking position.

Provided are a fireproof door apparatus, a fireproof structure, and a substrate treating facility.

The fireproof door apparatus includes a fireproof shutter opening and closing a passage connecting two spaces, a release unit installed on one side of the passage and in the fireproof shutter and fixing the fireproof shutter in an open state using magnetic force or releasing the fireproof shutter that is fixed, and a gas spring connected to the fireproof shutter and moving the fireproof shutter toward the passage by heat of the fire to close the passage.