A system for transferring torque with zero lash from a driver to a driven object is provided. The system includes a shaft disposed about a rotational axis and a hub defining a bore that receives the shaft. The shaft and hub are each configured for coupling to one of the driver and driven object. The shaft defines a flat on a radially outer surface and the hub defines a flat on a radially inner surface opposing the flat in the shaft. In one embodiment, the shaft includes a threaded bore and the hub includes an aligned through bore. Rotation of a threaded fastener in the bores draws the flat into engagement. In another embodiment, the hub includes a threaded through bore. Rotation of a fastener extending through the bore and engaging the shaft diametrically opposite the flats urges the flats into engagement.

A traffic gate apparatus comprises an upstanding pedestal. A first elongate arm is also provided having a proximal end and a distal end, with the proximal end of the first elongate arm being pivotally connected to the pedestal at a first pivot axis. A second elongate arm has a proximal end and a distal end, with the proximal end of the lower elongate arm being pivotally connected to the pedestal at a second pivot axis. The second pivot axis is below the first pivot axis such that the first and second elongate arms are movable between a lowered position, in which the first and second elongate arms are generally horizontal and parallel with the first elongate arm being above said second elongate arm, and a raised position. The first and second elongate arms each have an adjustment mechanism such that a length thereof can be varied.

The link assembly constitutes a mechanical connection between a cabinet door (108) and a toe kick plate (112) of the cabinet with both panels being hingedly attached to the same cabinet sidewall (114). The link assembly causes the toe kick plate (112) to move in synchronization with the movement of the door (108) and, when the cabinet door (108) is opened, the link causes the toe kick plate (112) to move into a position underneath the door (108). The link assembly pivots and self-adjusts dimensionally as required throughout the range of movement of the two hinged panels. The link assembly incorporates a resiliently biased over-center mechanism which urges the door (108) to remain in the open position until closed intentionally. The link assembly provides dual-axes adjustability for, and also supports the weight of, the toe kick plate free-swinging edge (112a).

The link assembly constitutes a mechanical connection between a cabinet door (108) and a toe kick plate (112) of the cabinet with both panels being hingedly attached to the same cabinet sidewall (114). The link assembly causes the toe kick plate (112) to move in synchronization with the movement of the door (108) and, when the cabinet door (108) is opened, the link causes the toe kick plate (112) to move into a position underneath the door (108). The link assembly pivots and self-adjusts dimensionally as required throughout the range of movement of the two hinged panels. The link assembly incorporates a resiliently biased over-center mechanism which urges the door (108) to remain in the open position until closed intentionally. The link assembly provides dual-axes adjustability for, and also supports the weight of, the toe kick plate free-swinging edge (112a).

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 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 sliding rail low-obstacle linkage shower room include an upper rail and a lower rail, a fixed glass, a primary shower glass and a secondary shower glass. The lower rail is correspondingly fixed on a bottom of the secondary shower glass. A sliding block unit is installed on the lower rail. The sliding block unit includes a fixed portion, a sliding groove and a guidance sliding portion. The fixed portion is fixed on the bottom of the secondary shower glass. A bottom of the primary shower glass is inserted into the sliding groove to form a linkage. The guidance sliding portion is glidingly engaged with the lower rail. The linkage shower room has a simple structure which can be easily manufactured.

A sliding rail low-obstacle linkage shower room include an upper rail and a lower rail, a fixed glass, a primary shower glass and a secondary shower glass. The lower rail is correspondingly fixed on a bottom of the secondary shower glass. A sliding block unit is installed on the lower rail. The sliding block unit includes a fixed portion, a sliding groove and a guidance sliding portion. The fixed portion is fixed on the bottom of the secondary shower glass. A bottom of the primary shower glass is inserted into the sliding groove to form a linkage. The guidance sliding portion is glidingly engaged with the lower rail. The linkage shower room has a simple structure which can be easily manufactured.

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.

A system for automatically synchronizing window openings and closings of multiple windows of a vehicle. The system includes a first actuator and a second actuator configured to move a first window and a second window to respective closed positions. The system includes a window control unit configured to receive, at a first time, an indication to close the first window at a first closing rate. The window control unit is configured to receive, at a second time, an indication to close the second window at a second closing rate. The window control unit is configured to adjust at least one of the first closing rate or the second closing rate, from a standard rate to an adjusted rate, when the first time and the second time are within a threshold time, such that the first window and the second window achieve their respective closed positions simultaneously.