Abstract: The invention relates to a door assembly (1) comprising a door frame (4), a door leaf (6), and a locking system (21) having a door lock (22) and having a drive assembly (25) with an electrically driven drive unit (26) and with an electrical energy source (27). The door lock (22) has a lock case (23) and a locking and/or blocking mechanism (24). The electrically driven drive unit (26), as viewed in the direction of the door leaf thickness (16), is arranged laterally next to and either directly adjacent to the lock case (23) or in the region of a door leaf surface (14, 15) on the door leaf (6), and has a mechanical drive connection with the locking and/or blocking mechanism (24) of the door lock (22).

Abstract: A device for locking steel reinforcing or prestressing members (15) in a positive manner in an anchorage (14) includes an axially extending cylindrical anchoring sleeve (1) with a throughbore (2) and a deformation section (3) extending from a leading end in the setting direction (S) and divided by axially extending slots (4) into at least six bending elements (5). An expanding element (8) with a throughbore (9) free of threads has a contact surface (10) for the bending elements (5) and the contact surface is inclined relative to the axis A of the anchoring sleeve (1). The expanding element (8) can be displaced against the deformation section (3) for spreading the bending elements (5) radially outwardly against the receiving surface of a receiving bore in a base material forming the anchorage. The contact surface (10) forms an angle (.alpha.) with the axis (A) of the anchoring sleeve (1) in a range of approximately 30.degree. to 80.degree..

Abstract: A holding arrangement is disclosed which can be employed to hold a winding enclosure which contains a low-temperature-cooled electric winding on which alternating external forces act, and which is fastened within a vacuum tank by means of tie rods. In particular, the arrangement includes pre-tensioned tie rods which are arranged to unilaterally pull, via pressure posts, with force-transmitting contact the winding enclosure against the inside walls of the vacuum tank. More specifically, the tensioning force at room temperature is selected such that at low termperature a residual tension force remains which is always at least as large as the component of the external force opposing it. With such a design for the holding arrangement no readjustment devices are necessary and the heat conduction effected thereby is relatively minor.

Abstract: A continuously operating superconducting magnetic separator for the segregated separation of particles with different magnetic susceptibility from a mixture such as a mixture of ferromagnetic and non-ferromagnetic ore and rock, in which the magnetic separator comprises a stationary superconducting magnet arrangement along with at least one carrier running through the magnetic field for the particles to be separated, which particles are moved by means of a conveyer chute through the magnetic field of large volume and past the carrier, which is in the form of a ferromagnetic grid, generating a field gradient and forcing the particles onto the grid, from which they are carried to appropriate collection devices.