Abstract: The subject matter of the invention is an aircraft boarding bridge or aircraft boarding stairs with a gangway bottom plate (30), said aircraft boarding bridge or said aircraft boarding stairs comprising a bellows (1), more specifically a U-shaped bellows, that spans said gangway bottom plate, wherein the clear height (arrow 50) between the upper edge of the gangway bottom plate (30) and the roof of the bellows (1) may be varied.

Abstract: The seal for aircraft boarding bridge, comprises a bellows (5) that spans a gangway bottom plate (10), which comprises a flexible frame (3) at its one open end and having at its other end a gantry frame for fastening to the aircraft to the boarding bridge, the flexible frame (3) resting against the outer skin of the aircraft when the bellows is deployed and an actuation device for actuating the bellows being provided for extending and retracting the bellows. The actuation device comprises a rotatable shaft equipped with a drive.

Abstract: The subject matter of the invention is a bellows (1) of a connection between two hinge-linked vehicles (5, 6), said bellows (1), which comprises a bellows bottom (4), a bellows roof (2) and bellows side walls (3), forming a tunnel-like tube, said bellows bottom (4) being a removable constituent part of said bellows (1), said bellows (1) having a plurality of frames (10) disposed one behind the other in the longitudinal direction of said bellows (1), said bellows bottom (4) having a plurality of ledges (20) disposed one behind the other, there being provided, to connect a respective one of a frame (10) with a ledge (20), a spring cramp (30) taking hold of the frame and the ledge, said spring cramp (30) having at least one shoulder (33) for matingly connecting frame (10) and ledge (20).

Abstract: The Object of the invention as a seal for aircraft boarding stairs or for an aircraft boarding bridge, said seal comprising a U-shaped bellows (5) spanning a gangway bottom plate (10), said bellows (5) comprising a flexible frame (3) at its one open end, said flexible frame having a bumper (4) made from an elastically resilient material, whereby the bellows (5) is separable.

Abstract: A sliding door operating mechanism for a vehicle to provide access to the vehicle through an opening in a wall thereof, includes at least one sliding door and a reciprocating power mechanism and a transmission mechanism for transmitting movement of power to the door for performing opening, closing and locking movements thereof. A beam structure carries the door, the power mechanism and the transmission mechanism. The beam structure extends across and is accommodated within an upper portion of the opening so as to be slidingly movably driven by the power mechanism between a relatively retracted position within the opening, in which the door is located in a first plane in a closed position confirmed within the opening, and a relatively less retracted position, in which the door is located in a second plane exteriorly of the opening allowing movement of the door along the second plane.

Abstract: The joint between two vehicles or vehicle parts, such as an articulated bus or a railcar for example, comprises at least two joint members (11, 12; 11a, 21a; 111a, 112a) that are held apart from a central longitudinal axis (50) of the vehicle (2, 3; 102, 103) and with at least one, preferably two joint arms (12a, 12, 22; 113, 114) that is/are carried so as to be capable of rotating about the two joint members.

Abstract: Connecting device (1) between two vehicle parts hinged to one another of an articulated vehicle, comprising a lower swivel joint (10) and a connection with a bellows (30) and an intercar gangway (20), whereas the swivel joint (10) is provided with two joint members (11, 12) being rotatably joined to one another by means of a rotary member (15), and whereas the bellows (30) is fastened on the joint members (11, 12).

Abstract: A compressed air motor comprises a cylinder with a piston slidable in said cylinder and connected to a compressed air inlet through a slide valve mechanism which alternately admits respective opposite sides of the cylinder with compressed air for driving the piston in the opposite direction, and which also alternately vents the side of the cylinder in which the piston is moving. The construction includes an action rod mounted for movement in a direction parallel to the piston on each side thereof which is contacted by the piston after predetermined movement thereof. A snap-action lever mechanism is connected between the action rod and the slide valve mechanism so that the action rod, through the snap-action lever mechanism reverses the slide valve during each motion of the piston. The action rod member is returned to its starting position during the return movement of the piston by means of a stop member connected to an extension of the piston.