Abstract:
The invention relates to a hydro-pneumatic piston accumulator (1), particularly for vehicle suspension systems, consisting of an accumulator housing (2) and a separating piston (6), which is disposed free-floating inside the accumulator housing in a displaceable manner in the direction of the movement axis (4). The separating piston separates an accumulator area (8) for a hydraulic medium from a pressure area (10) that is filled or is to be filled with a compressible medium, and is guided with an interior guide opening (30) on an elongated guide element (32), which is axially fixed within the accumulator housing (2).
Abstract:
A device for closing an injection mould and comprising a first, stationary mould-part holder, a second mould-part holder movably guided relative to the first holder, and at least one pressure medium-actuated closing cylinder arrangement connected to the mould-part holders, wherein the closing-cylinder arrangement is pivotably connected at least to the movably guided second mould-part carrier.
Abstract:
A method and apparatus for winding a textile yarn into a cross-wound package is disclosed, in which the yarn is wound about the package at a substantially constant rate while the yarn is guided onto the package by a traversing guide. In order to avoid the formation of ribbons on the package, the traversing frequency of the yarn guide is periodically varied by shortening the stroke of the traversing yarn guide while maintaining an unchanged traversing speed of the traversing yarn guide. The avoidance of the formation of ribbons is also accomplished by varying the traversing speed of the traversing yarn guide during the times in which the traversing frequency of the traversing yarn guide is unchanged. Stops are provided for controlling the length of back-and-forth movement of the traversing yarn guide and the stops can be moved inwardly and outwardly to provide the required stroke modification of the traversing guide. Several specific embodiments of the yarn traversing apparatus are disclosed, and wherein the traversing apparatus includes gripper means mounted on a slide which is positioned between parallel runs of a drive belt, and control means for moving the gripper means to alternately engage the two runs of the belt and thus reciprocate the slide.
Abstract:
A yarn heating chamber is disclosed which is adapted for thermally processing an advancing yarn. The chamber comprises first and second members each having a discontinuity in the form of a groove, shoulder or the like in the front surface thereof, and the members are movably mounted with respect to each other between an operative position wherein the discontinuities are positioned relative to each other to define a relatively narrow yarn passage, and a threading position defining an enlarged opening to facilitate threading. Also, at least one of the first and second members includes a rear surface which faces oppositely from the front surface of such member. Heating means is provided for introducing a hot pressurized vapor into the yarn passage when the members are in the operative position, and a portion of the hot pressurized vapor is directed into contact with the rear surface so that the hot pressurized vapor acts to bias the front surfaces toward each other to provide a firm contact therebetween.
Abstract:
This invention relates to a hydropneumatic piston reservoir (1) with a primary cylinder (2) in which runs a separating piston (12) with free mobility, with the separating piston (12) sealed off circumferentially, with the separating piston (12) inside the primary cylinder (2) separating two pressure chambers (16, 18) from one another. The separating piston (12) has an axial separating piston rod (20) at one end that is sealed off circumferentially from the primary cylinder (2) and is guided as a plunger (22) in a connected secondary cylinder (4) and is subjected to or can be subjected to a pressure medium. The plunger (22) at its free end away from the primary cylinder (2) has a bumper element (24) with a bumper area (28) projecting radially over the outer circumference (26) of the plunger (22).
Abstract:
The present invention relates to a suspension device for the load-bearing and resilient support of a wheel in a motor vehicle. The device comprises at least one spring cylinder with a piston which is guided in a manner moveable relative to it in a pressure cylinder. A driving device converts pivoting movement of a wheel oscillating-crank supporting arm, which movement oscillates about an oscillating-crank axis into the relative movements between the pressure cylinder and the piston. The piston acts counter to an elastically compressible spring medium in order to produce a load-bearing supporting spring force. The driving device is designed as a gearwheel mechanism.
Abstract:
A hydropneumatic suspension system, particularly for wheel support in motor vehicles, with at least one spring arrangement (1, 2) having at least one hydraulic spring strut (4), at least one hydropneumatic spring reservoir (6) and at least one damping valve (8). The spring strut (4) includes a cylinder (10) containing a hydraulic medium, and a piston (12), movably guided therein for spring compression and rebound. The piston (12) separates a cylinder space (16) from an annular space (18) surrounding a piston rod (14), wherein the cylinder space (16) is connected via a damping valve (8) with the spring reservoir (6) for producing an elastic force. The annular space (18) of the spring strut (4) is directly connected, while circumventing the damping valve (8), with the respective spring reservoir (6).
Abstract:
The end portions to be connected are arranged opposite one another, after at least some of the web weft threads have been removed therefrom to form a tying strip interconnecting the ends of the web warp threads in their original order. The web warp threads are gradually released from the tying strip, spatially separated, on an individual basis and in their original order, from the following web warp threads and delivered to the entrance of the then open seam loom shed formed in seam warp threads positioned intermediate the points of emergence of the web warp threads out of the original web. Thereafter, the separated threads are caused to traverse, as seam weft threads, the respectively associated seam shed produced by a Jacquard seam loom, this traversing movement being accomplished by a clamping arrangement arranged at the free end of a floating arm. A seam loom slay of a needle arrangement shifts the introduced seam weft thread into its proper position in the seam and the respective seam loom shed is then closed to detain the seam weft thread in this position. The separator may include a plurality of alternating thicker and thinner, smaller and larger, disks which form an arcuate helical groove at the periphery of the separator, or it may include a plurality of radially extending needles.
Abstract:
The invention relates to a suspension and damping device (1) for load bearing and sprung wheel support and for damping suspension movements in a motor vehicle, having at least one spring cylinder (2) having a piston (6) which is guided in a cylinder (4) so as to be movable relative to the cylinder and which acts counter to an elastically compressible spring medium (FM) in order to generate a load bearing supporting spring force (F). A separate circuit of a hydraulic damping medium (DM) which is independent of the spring medium (FM) is provided for damping. The piston (6) separates two working chambers (10, 12) from one another within the cylinder (4). One working chamber (10) is assigned to the spring medium (FM) and the other working chamber (12) is assigned to the damping medium (DM).
Abstract:
The invention relates to a suspension arrangement (1) for—loading-bearing and resilient wheel support in a motor vehicle, having at least one spring cylinder (2) with a piston (6) which is guided in a cylinder (4) such that it can be moved relative to the latter and which, on one side, has a piston rod (8) guided out of the cylinder (4) in the outward direction. The piston (6) separates, within the cylinder (4), a cylindrical working chamber (12) from an annular chamber (14), which encloses the piston rod (8). On the side of the working chamber (12), in order to generate a load-bearing spring force (F), the piston (6) acts counter to a working pressure (pA) of an elastically compressible, in particular pneumatic spring medium (FM). The piston rod (8) is telescopically variable in length via an additional spring cylinder (16), the additional spring cylinder (16) being subjected at least to a counterpressure (pG; pG1, pG2) of an elastically compressible, in particular pneumatic opposing spring medium (GM).