摘要:
A double roller cage for a double-row cylinder roller bearing, with a central ring part (1) from which webs (2, 3) protrude axially on both sides, wherein the webs (2; 3) of one side in each case form a row of bearings (4; 5) together with the rolling bodies arranged therein, wherein every two adjacent webs (2; 3) of a row of bearings (4; 5) delimit a receiving pocket (6; 7) for a rolling body, and in which, at least in one row of bearings (5), the webs (3) are designed so as to taper in the circumferential direction for a radial filling of the receiving pockets (7) with the rolling bearings. So that the double roller cage has satisfactory running behavior and is relatively simple and cost-effective to produce, recesses (12, 12′, 13, 14, 16) are formed on the other of the two rows of bearings (4; 5) in order to produce a symmetrical mass distribution between the two rows of bearings (4; 5).
摘要:
In a double wire former of a paper machine, a first continuous wire (1) is fed onto an at least partially curved guiding surface (4) so as to converge with a second wire (2), wherein the guiding surface (4) is movable in a form-locked manner relative to the wires. After the dewatering section described above, a further guiding surface (7) follows which, in advantageous embodiments, has an opposite sense of curvature and is fixedly located.
摘要:
A twin wire former wherein the forming turbulence of a first forming section is quieted by a main forming roller. Behind the main forming roller, as viewed with respect to a predetermined direction of travel of the forming wires, there is accomplished a further forming of the paper web or sheet from the fiber stock suspension in a second forming section. Due to this arrangement there is possible optimum formation of the paper web or sheet with the use of very little dilution water for the fiber stock suspension. Additionally, due to intensive shear forces present in the second forming section flocks formed in the fiber stock suspension and the paper web or sheet at the region of the main forming roller, can be eliminated so that the structure of the paper web or sheet is made more uniform.
摘要:
A needling apparatus for making a patterned felt web comprises at least one needle board, which is connected to a needle board drive, a feed drive for feeding the felt web through a felt guide between a felt support and a stripper, and means for adjusting the stroke position of the needle board relative to the felt guide between an idle stroke position and a working stroke position for the largest depth of penetration. To permit an increase of the average feeding speed along a series of patterns, the feeding speed imparted to the feed web by the feed drive is adapted to be controlled in dependence on the stroke position of the needle board relative to the felt guide in accordance with a predetermined coordination between the stroke position of the needle board and the feeding speed of the felt web.
摘要:
Iron, for example, is directly recovered from relatively fine-grained (having a grain particle size range of less than 250 microns), iron-bearing ore whereby carbon-containing materials and oxygen-containing materials are fed through a molten metal bath and converted into a CO/H.sub.2 -rich reduction gas which is sequentially passed upwardly at gas speeds of at least 1.5 m/sec. through downwardly moving ore particles within a reduction apparatus comprised of a sequence of interconnected cyclones so that ore particles in each cyclone are in a state of suspension and in intimate contact with the reduction gas and each other whereby extensive reduction of the ore particles occurs at each cyclone so that after a last cyclone the so-reduced ore particles are directly fed into a smelting means, from which liquid iron is recovered.
摘要:
An apparatus for needling a non-woven material is described, comprising at least one needleboard (1) which is drivable in a reciprocating manner in the needle-penetration direction (6) as well as in the direction of the passage (11) of the non-woven material, comprising an eccentric drive for the needleboard (1) which comprises two parallel eccentric shafts (2, 3) which are drivable in opposite directions and assume a different angular position (φ), and couplers (5) which connect the connecting rods (4) of the two eccentric shafts (2, 3) in an articulated manner and comprise a guide arm (8) which is rigidly connected with the same, and a lifting guide means (9) for the guide arms (8) which forms a swiveling axis (10) for the guide arms (8) which is parallel to the eccentric shafts (2, 3). In order to provide advantageous constructional conditions it is proposed that either the guide arms or the couplers carry the needleboard.
摘要:
A shoe includes a sole (2) that extends from a rear heel area (6) through a metatarsal area (7) to a front ball or toe area (8), the sole being composed of a sole body (10) and a sole covering (11) formed on the underside of the sole body (10) and a recess (13) extending approximately from metatarsal area (7) to heel area (6). The recess is provided between sole body (10) and sole covering (11), with the area of sole covering (11) associated with recess (13) forming a pivoting element (18) designed to pivot around a pivot axis (20) located in the end area of recess (13) facing metatarsal area (7). The end area of recess (13) facing metatarsal area (7) is defined by a tip (13a) of recess (13), and the pivot axis (20) is located in the area between a lengthwise center of shoe (1) and heel area (6), with heel area (6) extending over approximately one-third of the length of shoe (1). At least one material element (25) is located in recess (13), the material element (25) being made of a flexible, soft material and being made approximately wedge-shaped or approximately in the shape of a circular section.
摘要:
A distribution panel, especially for data transmission networks, is described with a shaped rail, with jacks attached to the shaped rail, the plug receptacles of the jacks being arranged on the front next to one another, and with mounting tabs for cables guided along the rear to the jacks. The shaped rail has a receiving groove along its rear longitudinal edge. A support extending essentially over the entire length of the shaped rail can thus be inserted into this groove and attached to the shaped rail in such a way that the top surface of the support plate is in a plane essentially parallel to the shaped rail. The support plate has mounting tabs for the cables.
摘要:
The invention relates to a hydraulically actuable releaser with an annular piston. The supporting ring co-operating with the annular piston and the groove sealing ring co-operating with the supporting ring have, at least in their radially outer region facing one another, an encircling supporting shoulder on the supporting ring and an encircling recess on the groove sealing ring. This measure prevents the groove sealing ring from being pressed into a possible gap between supporting ring and the external wall of the housing under pressure loading.
摘要:
The de-watering apparatus for a two-wire paper machine is constructed in such a manner that following the convergence of both wires, firstly, a uniform pressure at a forming roll is exerted on the suspension layer located between the wires. Subsequently, both wires pass de-watering rails which may be located in the upper and/or the lower wire. In this case, an under-pressure is exerted at least at the rails located in the upper wire. At least one further de-watering member then follows before both wires are separated again. The de-watering apparatus can also be used after a preliminary de-watering section, for example an endless wire, and also in the direct vicinity of a head box.