Abstract:
A process for producing a non-dense sintered ceramic molded body having at least two layers, wherein a first powdery ceramic material forming a layer is contacted with at least a second powdery material forming at least a second layer; said first powdery material has a presintering temperature T1 that is higher than the presintering temperature TS of said at least second powdery ceramic material; the course of a curve of shrinkage S1 of said at least first powdery ceramic material differs from the course of a curve of shrinkage S2 of said at least second powdery material, wherein curve of shrinkage S1 is shifted towards higher temperatures as compared to curve of shrinkage S2; and the layers are subjected to a common temperature treatment at a presintering temperature TS that is lower than the presintering temperature T1 and at least equal to T3 to cause sintering that remains in a stage of sintering that has not proceeded to the theoretical density; wherein the curve of shrinkage S1 is modified by admixing at least one component having a curve of shrinkage S3 which material is compatible with said powdery ceramic material into said first powdery ceramic material, i.e. has a grain size smaller than the first powdery ceramic material, to equalize the curves of shrinkage S1 and S2 in the region of the presintering temperature TS.
Abstract:
A textile insert consists of two layers (S.sub.1, S.sub.2) composed each of at least one partial layer (S.sub.1a, S.sup.1b, S.sub.2a, S.sub.2b). These layers are made of woven warp threads (1.sub.1a, 1.sup.1b, 1.sub.2a, 1.sub.2b) and woof threads (2.sub.1a, 2.sup.1b, 2.sub.2a, 2.sub.2b). Intermediate layers (Z.sub.1, Z.sub.2, Z.sub.3) made of standing threads (4.sub.1, 4.sub.2, 4.sub.3) that extend at least in the longitudinal direction X lie between the partial layers. The whole system is held together by straight or curved connecting threads (3.sub.1, 3.sub.2). A stable textile insert is thus obtained that allows fibrous composite materials to be produced without distortion by a pultrusion process. Sections made of such fibrous composite materials are in addition highly resistant in all three directions.
Abstract:
A packet, consisting of a stack of band sections lying parallel to one another, is formed in a magazine compartment. The packet is ejected by an ejecting apparatus onto the receiving table of a transfer apparatus. There it is compressed between holding members to a width B, which width is smaller than the corresponding internal measurement A of a mold, which mold is made of a base and side walls and which mold is open on its side opposite to the base. The mold is put over the packet and the packet is clamped within the mold, whereby the packet is made ready for further processing.
Abstract:
A knitting machine, in particular a warp knitting machine with a central control apparatus (120) containing a computer with an input device (122) for the establishing of the characteristic data of the knitted article (20) to be produced and with a central control unit (124) which is connected over a line (126) with individual drives (16, 28, 33, 35, 63a, 63b, 63c, 63d) for aggregates (15, 22, 32 34, 44a, 44b, 44c, 44d) of the knitting machine. The knitting machine has a main drive (16) for at least one needle bar of a row of needles and a central control unit (120) with an input device (122) to establish the characteristics of the knitwear to be produced. In order to improve the control, each drive (16, 28, 33, 35, 63a, 63b, 63c, 63d) of individual components (15, 22, 32, 34, 44a, 44b, 44c, 44d) has an individual intelligent control unit (163, 283 33.sub.3, 35.sub.3, 63a.sub.3, 63c.sub.3, 63d.sub.3) to assume and process the relevant program module of the control device (120). The drives are interconnected and synchronized via a shared reference value pulse generator line (130), in which one drive (16) is the main drive and an appropriate pulse generator (16.sub.4) is the reference value pulse generator.
Abstract:
A flat textile body is composed of adjacent bands (2) that extend in a perpendicular direction to its main center-plane (M). Each band has marginal sections (4) made of woven or knitted warp (6) and weft threads (8). Between the marginal sections at least most of the weft threads are floating threads. Adjacent marginal sections (4) of adjacent bands (2) are not linked to each other by purely mechanical means, i.e. glued or soldered. The resulting flat body is easy to produce in a precise manner and is very versatile. In particular, it can be cut along its main center-plane (M) into two symmetrical pile carpet plates.
Abstract:
The present invention relates to a porous, silicate, ceramic body, possibly with different colors, with a first density, which can be sintered into a silicate, ceramic body with a second density, wherein the ratio of the first density to the second density is 2/5 to 98/100, and the three-point bending strength of the porous, silicate ceramic body with a first density, measured according to ISO 6872, amounts to 25 to 180 MPa.
Abstract:
A self-latching lock (1) having a bolt (2), a catch (3), an auxiliary catch pin (4) and a reciprocator (5) includes a multi-part latch nut (6) that permits the deactivation of an nut-idling device (8) and thereby a temporary activation of the function of door handles preferably by electrically operated remote-controlled actuation. The latch nut (6) comprises an outer nut body (60) with two arms (61, 62) for operating the catch (3) and the bolt (2), respectively, as well as two hubs (63, 64) each connected with a square section of the outer and the inner door handle and coaxially and rotatably positioned parallel to each other inside the outer nut body (60). The nut-idling device (8) arranged between the hubs (63, 64) and the outer nut body (60) constitutes a coupling which by means of actuators (71, 72) permits disengagement for each hub (63, 54).
Abstract:
For coating, a flat body is inserted into a mold having a base and side walls. The mold and the flat body are dipped into a coating material- After hardening of the coating material the flat body is removed from the mold and laterally trimmed.
Abstract:
An installation comprised of a weaving or knitting machine and a packeting apparatus forms a flat textile body that can be cut along its central plane into two symmetrical pile carpets. In the installation the body is formed by severing a woven or knitted band of material having at least one edge section and floating web threads. A severing mechanism cuts the band into segments which are then transferred and stacked adjacent to one another in a magazine while a tensioning device maintains a nearly uniform tension on the band between the weaving or knitting machine and the magazine. Several additional mechanisms are provided to adhesively or thermally join the band segments together along the edge sections.
Abstract:
Molded member made of form-stabilized material, comprising at least one first component and one second component, characterized in that the second component has a different pigmentation than the first component and the second component is disposed inside the first element, forming a boundary surface, in such a way that the boundary surface represents a spatially curved surface.