Abstract: Spindle units are provided for machining devices, in particular for a lathing spindle unit, center drive assembly or milling spindle unit. The spindle unit comprises: a spindle shaft rotatably supported in a housing, a chucking device disposed at the spindle shaft for clamping a workpiece or a tool, a motor drive connected to the spindle shaft for driving the spindle shaft around a drive axis, a clamping device for clamping the spindle shaft at a freely selectable angular position around the drive axis, wherein the clamping device is disposed between the spindle shaft and a stationary part of the spindle unit, and an actuating device for actuating and/or releasing the clamping device. The clamping device can be axially actuated in the direction of the drive axis such that an axial or substantial axial clamping force acts in the direction of the drive axis with the clamping device being actuated.

Abstract: Spindle units are provided for machining devices, in particular for a lathing spindle unit, center drive assembly or milling spindle unit. The spindle unit comprises: a spindle shaft rotatably supported in a housing, a chucking device disposed at the spindle shaft for clamping a workpiece or a tool, a motor drive connected to the spindle shaft for driving the spindle shaft around a drive axis, a clamping device for clamping the spindle shaft at a freely selectable angular position around the drive axis, wherein the clamping device is disposed between the spindle shaft and a stationary part of the spindle unit, and an actuating device for actuating and/or releasing the clamping device. The clamping device can be axially actuated in the direction of the drive axis such that an axial or substantial axial clamping force acts in the direction of the drive axis with the clamping device being actuated.

Abstract: The invention relates to a solid trackway (1) for rail vehicles having a substantially continuous bedding of the rails (2) on a concrete slab (3), wherein the rail (2) is supported with the foot thereof on an elastic intermediate layer (7). The solid trackway (1) further comprises a side guide piece (8) supporting and guiding the rail (2) in the horizontal direction. The rail (2) is mounted on the concrete slab (3) at discrete mounting points (9) by means of a mounting means (12). Only the elastic intermediate layer (7) is disposed between the rail (2) and the concrete slab (3).

Abstract: A rigid track consisting of concrete, in particular pre-cast components, comprising a slab with traversing fixing elements, or a plurality of fixing elements arranged thereon, of rails for track-borne vehicles. The inventive rigid track is characterized by a pre-cast concrete component constituting a protuberance that is positioned on the slab, parallel to at least one rail and located on at least one side of the rail. The protuberance acts as a guard and a guide for the vehicle during derailment.

Abstract: The invention relates to rigid track consisting of concrete, in particular of pre-cast concrete components, comprising a slab (1) with traversing fixing elements (4), or a plurality of fixing elements arranged thereon, of rails (3) for track-borne vehicles. The inventive rigid track is characterised in that a pre-cast concrete component constitutes a protuberance (5) that is positioned on the slab (1), parallel to at least one rail (3) and located on at least one side of the rail (3), to act as a guard and a guide for the vehicle during a derailment.

Abstract: The invention relates to a method for the continuous laying of a rail (4,4′) on a rigid track, in particular consisting of precast concrete components (1). According to said method, the rail (4,4′) is positioned in a channel (3,3′) of the rigid track and is fixed by said channel (3,3′) being filled. The inventive method is characterised in that chamber filler blocks (30) are located at the sides of the rail (4,4′) and the gap (32) between the chamber filler blocks (30) and the sides (34) of the channel is filled with a grouting mortar.

Abstract: A method for measuring and/or machining a workpiece (1, 2), especially modules in building construction by means of a measuring and/or machining device (30) is presented, in which the workpiece (1, 2) is determined in a first coordinate system (21) with the aid of at least one determining [detection] device (10) and that the measuring and/or machining device (30), that can move relative to the workpiece (1, 2), is determined in a second coordinate system (22) independently of the position and the shape of the workpiece (1, 2). The coordinates of the workpiece (1, 2) on the one hand, and the coordinates of the measuring and/or machining device (30) on the other hand, are brought into a relationship with each other by a computer (40) in order to control the measuring and/or machining device (30) for measuring and machining the workpiece (1, 2).

Abstract: A guideway girder is provided for a vehicle transport system wherein a plurality of the girders are assembled in succession in a direction of travel of a vehicle to form a guideway for the vehicle. The girder is formed by a combination of concrete structural elements, and includes at least one sound isolation element disposed on a surface of at least one of the structural elements.

Abstract: The invention relates to a method for correcting the position of a slab construction, especially a solid carriageway for high-speed vehicles, consisting of precast concrete slabs (1). The precast slabs (1) are supported by a substrate made from hardenable underpoured material (4) and a supporting layer (5) on the base. In order to correct the person of at least one precast slab (1), the precast slab (1) is at least partially detached from the substructure, especially from the under poured material (4) and/or the supporting layer (5), whereupon it is finely aligned and then underpoured once more with said material (4). A separating device (20.21) is arranged on a precast concrete slab (1) which is to be detached on a successive precast concrete slab in a device provided with one such separating device in order to detach at least one part of a concrete slab (1) pertaining to a solid carriageway for high speed vehicles from the substructure thereof, especially when the position is corrected.

Abstract: The water necessary for the production of concrete is replaced by a super-cooled, cooling transfer agent, comprising snow crystals. The cooling transfer agent is produced by mixing water with air and a cooling medium, such as liquid nitrogen, to give a cold gas mixture. The cold gas mixture is sprayed in the form of a cold gas stream. The snow crystals thus formed from the water are brought to a low temperature, of, for example, below minus 30° C. and added to the mixture of binding agents.

Abstract: The invention relates to a travel way support, particularly for a magnetically levitated train (100), for constructing a travel way through a number of supports (2) successively arranged in the direction of travel. Said travel way support comprises an upper support section (12), particularly an upper flange (12) and at least one bracing section (13, 14), in particular, a web (13, 14), which is arranged underneath the upper support section (12). Solar cells (7, 8) and/or solar collectors are arranged in the area of the upper support section (12) and/or of the at least one bracing section (13, 14).

Abstract: The invention relates to a concrete support (1) for a travel way of a track-guided vehicle, particularly a magnetically levitated train, that is provided, in particular, as a precast concrete part. According to the invention, webs (4, 4′) extending in a longitudinal direction of the support (1) are arranged on a first flange (2) also extending in a longitudinal direction of the support (1). A second flange (3, 3′) is arranged on the end of the webs (4, 4′) that is located at a distance from the first flange (2). Add-on pieces for guiding the vehicle can be arranged on the ends of one of the flanges (2; 3, 3′), said ends being interspaced in the cross-section of the support (1). A second flange (3, 3′) is respectively arranged on each end of the webs (4, 4′) that is located at a distance from the first flange (2), whereby these second flanges (3, 3′), starting from the end of the webs (4, 4′), extend essentially up to outer side of the support (1).