Abstract: A porous, flow-through molded body, designed specifically for use in the removal of diesel soot particles from the exhaust gas of diesel engines. It includes a reciprocally closed honeycombed body made of silicon carbide and possessing the following features.wall thickness: 1.25.+-.0.5 mm;porosity: 55 to 60%;average pore diameter: 25 to 70 .mu.m;specific permeability: 20 to 100 nPm.In the production method, a starting powder of silicon or a mixture of silicon with portions of silicon carbide and/or carbon is combined with an organic binding agent that can be coked and molded into a green body. This is then subjected to a coking fire in an inert-gas atmosphere; the molded body obtained in this manner is then heated in the presence of nitrogen or a nitrogenous inert gas to a temperature where free silicon is converted with the carbon, in a reaction firing, to silicon carbide. Additionally, a recrystallization firing at greater than 2000.degree. C. is implemented.

Abstract: A felt, especially for the press part of a papermaking machine, comprises at least one support belt and at least one fiber belt deposited on and affixed to it. In order to impart to such a felt improved operational properties while retaining adequate transverse stability and in order to manufacture it at substantially lower cost, the support belt(s) 45, 50, 57, 58, 64, 71, 72 each are composed of at least one support-belt strip 46, 51, 52, 59, 60, 65, 66, 73, 74, 75 with a width less than that of the support belt(s) 45, 50, 57, 58, 64, 71, 72 , said strip(s) being continuously wound essentially in the direction of advance of the felt 42, 47, 53, 61, 67 and also spirally transverse to it.

Abstract: A porous permeable molded body designed especially for use in the removal of diesel soot particles from the exhaust gas of diesel engines is disclosed. The body includes an alternatingly closed honeycombed body made of silicon carbide and possessing the following features:______________________________________ wall thickness: 1.25 .+-. 0.5 mm; porosity: 55 to 60%; average pore diameter: 25 to 70 .mu.m; specific permeability: 20 to 100 nPm. ______________________________________In the production method, a starting powder of silicon or a mixture of silicon with portions of silicon carbide and/or carbon is combined with an organic binding agent that can be coked and molded into a green body. This is then subjected to a coking fire in an inert-gas atmosphere; the molded body obtained in this manner is then heated in the presence of nitrogen or a nitrogenous inert gas to a temperature where free silicon is converted with the carbon, in a reaction firing, to silicon carbide.

Abstract: A link conveyor (1, 11), in particular, for paper-making machines, has hinged wires (2, 12) that extend in the lateral direction and link elements (3, 13) that extend in the longitudinal direction and that in each case enclose at least two hinged wires (2, 12), while link elements (3, 13) are shifted over the widths of the link conveyor (1, 11), in the longitudinal direction, by at least one hinged wire (2, 12). According to the invention, the link elements are made as ring elements (3, 13) with one single ring opening (4, 14) that will enclose at least two adjacent hinged wires (2, 12).

Abstract: A dryer screen has a paper side and a machine side. A plurality of machine direction threads extend in the direction of movement of the screen. The machine direction threads are arrayed in first and second groups. The threads of the groups are bound to the screen through different binding pattern repeats. A plurality of cross threads extend generally transverse to the machine direction threads. The threads of the first group are arrayed in first and second subgroups offset with respect to the direction of movement of the screen. Each subgroup comprises at least two abutting contiguous machine direction threads having a binding pattern repeat floating on the paper side over a predetermined plurality of cross threads.

Abstract: A paper machine cover with a textile web structure, e.g., a woven, knitted, or non-woven fabric, etc., is provided. The paper machine cover has flattened threads, whereby respectively the longer axis of the cross-section of these threads extends parallel to the plane of the paper machine cover. The flattened threads consist of monofilaments with an annular cross-section and/or multifilaments formed of individual filaments with an annular cross-section. The monofilaments or individual filaments of the multifilaments have an annular cross-section. These filaments are deformed plastically into the flattened cross-section at least in those areas where they extend parallel to the plane of the paper machine cover.

Abstract: A wire-link, such as a filament-link belt for process purposes, in particular one serving as a clothing for paper-making machines, with a plurality of juxtaposed, mutually engaging wire-coils comprising end-arcs enclosing plug-in wires and turn-legs connecting the arcs, is characterized in that the turn-legs of at least a part of the wire-coils alternate each time between two end-arcs at least once between the flat sides of the wire-link belt.

Abstract: A felt, especially for the press part of a papermaking machine, includes at least one support belt and at least one fiber belt deposited on and affixed to it. In order to impart to such a felt improved operational properties while retaining adequate transverse stability and in order to manufacture it at substantially lower cost, the support belt(s) 45, 50, 57, 58, 64, 71, 72 each are composed of at least one support-belt strip 46, 51, 52, 59, 60, 65, 66, 73, 74, 75 with a width less than that of the support belt(s) 45, 50, 57, 58, 64, 71, 72 , said strip(s) being continuously wound essentially in the direction of advance of the felt 42, 47, 53, 61, 67 and also spirally transverse to it.

Abstract: A filter candle, especially for gas equipment, includes a plurality of cooperatively associated tubular mutually telescopically engageable filter-candle segments. Each segment is comprised of an inherently dimensionally stable material. Each segment has structure for supporting each segment relative to the other segments, and additional structure for limiting the movement thereof relative to the associated segment. Structure is also provided for releaseably supporting the segments together as a filter candle.

Abstract: A papermaking machine belt comprising a flexible belt-layer impermeable to liquids which is partly integrated with a support track with cavities.

Abstract: The present invention provides a belt for papermaking machines, said belt comprising a flexible belt layer impermeable to liquids and is smooth on its backside while its front side integrates, but only partly, a support-track having cavities and it contains longitudinal threads extending in the direction of advance and located between the support track and the backside of the belt.

Abstract: A strip of material, especially for papermaking machine cloth covers for the pressing zone, as a filter or as pressing pad for the particle-board presses, comprises individual, longitudinal threads and orthogonally thereto individual transverse threads. In order to endow the strip with a structure such that on one hand it can be manufactured rapidly and economically, and on the other hand to allow wide latitude in shaping its properties, the threads (1) extending in one direction always consist each of a core filament (2) and of at least one loop thread (3) enclosing this filament.

Abstract: A filter fabric comprises a needle felt substrate comprised of a non-woven air permeable fabric having spaced surfaces. An open pour air permeable plastic foam is incorporated into the substrate and extends from one surface toward the other.

Abstract: A joinable paper machine felt assembly includes a plurality of spaced first and second cross-threads, the cross-threads being longitudinally spaced and each first cross-thread being laterally spaced from a second cross-thread for thereby defining a plurality of cross-thread pairs. An end two of the cross-thread pairs define first and second fabric ends. A plurality of first and second alternatingly disposed and directly adjacently positioned lengthwise threads bind the cross-threads into a fabric. Each first lengthwise thread forms a first loop extending over the threads of the cross-thread pair at one of the fabric ends and immediately thereafter each first lengthwise thread extends back into the fabric and alternatingly first crossing between and then passing over the associated cross-threads of the cross-thread pairs.

Abstract: The invention concerns a machine felt, in particular a papermaking machine felt, having the following features:(a) the machine felt comprises a support material extending over its entire length,(b) the support material is in several plies over it entire extent,(c) the individual plies consists of at least one belt of material, in particular a knit fabric,(d) the belt of material, or at least one of the belts of material, exceeds the size of the machine felt and overlaps itself forming at least two complete plies,(e) the plies of the support material are connected by at least one pinned web.

Abstract: Equipment for unraveling threads out of a fabric, in particular cross-threads in the end areas of fabrics produced for papermaking machines, comprising an unraveling assembly including a sensor head for determining the precise course of cross-threads to be removed, an unraveling head transversely displaceable with respect to the cross-threads and having at least one unraveling needle capable of vertical reciprocation into and out of the fabric for capturing and lifting a cross-thread out of the fabric, needle reciprocation means for selective vertical reciprocation of the unraveling needle and cutter means for selectively cutting off cross-thread ends lifted out of the fabric by the unraveling needle.

Abstract: A method and apparatus for producing an endless tubular felt includes superposing layers of tubular felt one upon the other and binding of the superposed layers together. A marking line is applied to the top surface of the superposed layers in continuous manner as the felt is trained about the driven rolls. The rolls include needle segments which move the felt axially of the roll. A scanner scans the position of the marking line shortly before the completion of one revolution. A controller compares the position of the marking line with a reference and causes the needle means to be adjusted to that the marking line corresponds with the reference.

Abstract: A belt to be used in paper-machine wet-pressing, in particular in a machine with an extended pressing gap, includes a flexible, liquid-impermeable belt stratum which is smooth on its back side.This belt is improved by providing the front side of the belt stratum (2,12,25,36) with a structured surface with open longitudinal and/or transverse channels (9,14,30,41), for the purpose of water drainage, which cannot be squeezed, or only insignificantly, under press compression.