Abstract: Provided is a method for data transmission between at least one first network and at least one second network, wherein a) for at least one data transmission between the at least one first network and the at least one second network, at least one connection between the first network and the second network is established and a datum or data are directed by means of a resource allocation unit arranged between the networks, and b) for the establishment of the at least one connection, the resource allocation unit exclusively allocates at least one net access resource, e.g. network cards or network adapters, which can be coupled to the second net, and a one-way communication unit arranged upstream of the net access resource for establishing a feedback-free data transmission direction.

Abstract: Provided is a network adapter for unidirectional transmission of a user data stream to a bidirectional network interface, the network adapter including: a first connection unit which is physically connected to a bidirectional network interface of a first device; a second connection unit which is physically connected to a bidirectional network interface of a second device; and a terminating unit which has at least one bit transmission module and which is designed to establish a bidirectional data link to the network interface of the first device, to receive the user data stream from the first device exclusively in a unidirectional fashion via the data link, and not to send a user data stream to the first device.

Abstract: A test stand for motor vehicles with a roller assembly (1) having a contact surface (3) for rolling the wheels (2), with the contact surface (3) being rotatably driven and adapted to be blocked, and/or braked, and/or released. The roller assembly (1) is mounted for at least a slight movement with at least two degrees of freedom, and to determine the force which is generated by the motor vehicle during driving and/or braking movements of the vehicle, it is possible to measure the force that is operative between the roller assembly (1) and a predeterminable fixed point (10), and/or the displacement occurring during driving and braking movements of the motor vehicle, and/or the angle of rotation between the roller assembly (1) and a predeterminable fixed point (10).

Abstract: A test stand for motor vehicles with a roller assembly (1) having a contact surface (3) for rolling the wheels (2), with the contact surface (3) being rotatably driven and adapted to be blocked, and/or braked, and/or released. The the roller assembly (1) is mounted for at least a slight movement with at least two degrees of freedom, and that to determine the force which is generated by the motor vehicle during driving and/or braking movements of the vehicle, it is possible to measure the force that is operative between the roller assembly (1) and a predeterminable fixed point (10), and/or the displacement occurring during driving and braking movements of the motor vehicle, and/or the angle of rotation between the roller assembly (1) and a predeterminable fixed point (10).

Abstract: A door set has a bolt-guide sleeve which is adjustably connected to the escutcheons on which the doorknobs are journaled by a pair of toothed elements bridging the escutcheons and passing through slots in the sleeves which have complementarily toothed edges.