Abstract: The invention relates to 1,2,5-trisubstituted 1,2-dihydroindazol-3-ones of formula (I) wherein X is —SO2—, —SO—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—, Y is —(C═O)—, —(C═O)—NH—, —(C═O)—NH—(CH2)p—, —C═O)—(CH2)p—, —(CH2)p—, —(CH2)p—O—, —(CH2)p—(C═O)—, —(CH2)p—(C═O)—NH—, —(CH2)p—(C═O)—NH—(CH2)p—, —(CH2)p—CHOH—, —CHOH—(CH2)p—, —(CH2)p—CH═CH—, —CH═CH—(CH2)p—, Z is —O—, —O—(CH2)p—, —NH—, —NH—(

Abstract: The invention relates to 1,5- and 3-O-substituted 1H-indazoles of formula (I) ##STR1##

Abstract: An apparatus for joining flat electrical components uses a flexible foil with electrical conductor tracks and an electrically conductive adhesive. A workpiece receptacle receives workpieces to be joined, and a heatable die is pressed against the workpiece receptacle and in so doing adhesively bonds the workpieces under the influence of heat and pressure and electrically conductively joins them to one another. Resiliently supported metal peripheral elements which are disposed on both sides next to the workpiece receptacle, are adapted in terms of their spacing to the width of the respective workpiece. In particular, LCD components and printed circuit boards are joined together, for example for on-board computers for motor vehicles, for telephones and for other devices equipped with liquid crystal displays.

Abstract: This invention is an implementation of a congestion control mechanism, especially for ATM networks supporting data services or other nonreserved bandwidth traffic, e.g. in multimedia applications. It reacts immediately upon detection of a traffic bottleneck by selectively and temporarily holding back the data traffic that is to pass the bottleneck (5). A congested node (3) transmits congestion notifications (36) containing routing label information and deferment information to upstream nodes (2), thus enabling selective, temporary throttling action. If congestions persist, further notifications may be spread backwards step by step, eventually reaching the sources. A specific implementation is given for PRIZMA type switching nodes.

Abstract: 1,3,5-trisubstituted indazole derivatives of the formula ##STR1## wherein R1 is H, (b) a C.sub.1-6 straight or branched, substituted or unsubstituted alkyl residue, (c) a C.sub.3-7 cycloalkyl residue, (d) an unsustituted or substituted phenyl, naphthyl, anthranyl, or fluorenyl residue, (e) a quinolin-2-ylmethoxy, or pyridin-2-ylmethoxy residue; X is O, or a --NH, --NH--(C.dbd.O)--NH--, --NH--(C.dbd.O)--O--, --NH--(C.dbd.O)--, or --NH--CH.sub.2 --(C.dbd.O)-- residue; Y is O, or S; R.sub.2 is H; Z is a SO, SO.sub.2, --(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --O--, --O--(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --(C.dbd.O)--, --(C.dbd.O)--(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --(C.dbd.O)--NH--, --NH--(C.dbd.O)--(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --CHOH--, --CHOH--(CH.sub.2).sub.p --, --(CH.sub.2).sub.p --CH.dbd.CH--, or --CH.dbd.CH--(CH.sub.2).sub.

Abstract: This invention is an implementation of a congestion control mechanism, especially for ATM networks supporting data services or other nonreserved bandwidth traffic, e.g. in multimedia applications. It reacts immediately upon detection of a traffic bottleneck by selectively and temporarily holding back the data traffic that is to pass the bottleneck (5). A congested node (3) transmits congestion notifications (36) containing routing label information and deferment information to upstream nodes (2), thus enabling selective, temporary throttling action. If congestions persist, further notifications may be spread backwards step by step, eventually reaching the sources. A specific implementation is given for PRIZMA type switching nodes.

Abstract: A node for an access control system for a multi-channel data transmission ring is disclosed. Access to a channel is controlled exclusively by one node, which is the only data receiving node connected to that channel. The receiving node generates slots so that other connected nodes can transfer data to the receiving node. The receiving node can provide balanced access to the channel by all connected nodes. Further embodiments feature prevention of congestion in the buffer of the receiving node. The invention is particularly useful for wavelength division multiplexed (WDM) optical rings.

Abstract: A system for protecting against erosion the surface of a body which is subjected to an airflow and consists essentially of a fibrous material or a fiber-reinforced plastic material, such as a rotor blade, has a metallic coating which, in the respective area to be protected, covers the surface in several layers. The primary layer of the coating consists of aluminum or a similar material with a modulus of elasticity that is approximately identical to that of the material on the surface of the body. The primary layer, in the form of a sheet glued to the surface, is coated with a two-phase material, in which particles of metallic oxide and/or metallic carbide and/or metallic nitride compounds are embedded in a finely distributed manner in a ductile, solid-solution-hardened matrix of a metallic but non-ferrous material.

Abstract: A large antifriction bearing, wherein one of the inner ring parts or the outer ring parts are provided with axially extending, wide toothing. At least one or both of the inner and outer ring parts is divided into cooperating parts through the axis of the bearing. Each set of axially adjacent cooperating ring parts is in turn divided into circumferential segments, and the segments are circumferentially offset. The offset axially neighboring segments of cooperating ring parts are fastened together. One of the rings has its ring parts shaped for defining a U-shape in cross-section. The other ring has its ring parts shaped for defining a projecting portion that projects between the arms of the U-shape. The rolling elements of the bearing are disposed between the insides of the arms of the U-shaped part and the projection from the other part. Preferably the ring part having the teeth is U-shaped, although the other ring part may be U-shaped.

Abstract: Reinforcing fiber materials such as rovings, webbings, and other fiber maials are impregnated with a resinous binder material in such a manner that gaseous inclusions are avoided whereby a surprising increase in the strength of the fiber compound material is achieved. For this purpose the liquid resinous binder material is applied substantially only to one side of the reinforcing material which is then moved through an absorbing zone in which the liquid resinous binder material penetrates the reinforcing material substantially completely as a result of a predetermined residence time and temperature in the absorbing zone. Gas inclusions are removed by adsorption and/or by expulsion. The gas adsorbing and expulsion zone is a chamber in which a plurality of guide rollers are arranged so as to cause the impregnated material to repeatedly reverse its moving direction, whereby the sequential and repeated penetration of the reinforcing material by the resinous material and the removal of gas inclusions are enhanced.

Abstract: Reinforcing fiber materials such as rovings, webbings, and other fiber materials are impregnated with a resinous binder material in such a manner that gaseous inclusions are avoided whereby a surprising increase in the strength of the fiber compound material is achieved. For this purpose the liquid resinous binder material is applied substantially only to one side of the reinforcing material which is then moved through an absorbing zone in which the liquid resinous binder material penetrates the reinforcing material substantially completely as a result of a predetermined residence time and temperature in the absorbing zone. Gas inclusions are removed by adsorption and/or by expulsion.

Abstract: A connecting rod assembly includes an axially elongated member with openi spaced apart in the axial direction. The axis of the openings extend perpendicularly to the axis of the member. A connecting rod shaft extends in the axial direction of the member between the two openings. A fiber reinforced plastics material belt extends around the first and second openings and also around the connecting rod shaft. Oblique cuts are formed in the belt on opposite sides of the connecting rod shaft adjacent one of the openings. A highly heat-resistant adhesive is placed in the oblique cuts for splicing the belt together.

Abstract: A rotor blade, for example for a windmill, comprises a plurality of blade ctions between a blade root and a tip. The sections are interconnected by tensioning members such as steel cables or the like, preferably extending through the blade sections. Thus, each section may be manufactured individually and all components may be assembled at the construction site, whereby relatively large windmill rotors may be constructed.

Abstract: A method for the manufacture of a composite fiber component having a high rface quality wherein a glass mold having a smooth surface is coated with a separating layer which can be loosened from the surface, and then this layer is coated with a hardenable composite fiber material. This material is hardened and then separated from the mold and the separating layer. Products obtained by the process are also disclosed.

Abstract: Windings of fiber compound materials are produced on a core in multicourses hereby the fiber arrangement may change from course to course. For this purpose a plurality of fiber coil carriers are arranged in sequence one after the other as viewed in the direction of core advancement. The fiber coil carriers are arranged coaxially relative to the core. The coils of fibers are supported by the fiber coil carriers. The r.p.m. of each fiber coil carrier is adjustable independently of the r.p.m. of any other coil carrier. Each r.p.m. is adjusted to be inversely proportional to the desired pitch of the fibers in the respective winding course. The direction of rotation of each coil carrier is also selectable independently of the rotational direction of any other coil carrier.

Abstract: A high resolution interferometer is provided which is insensitive to slight misalignment of its elements, avoids channeling in the spectrum, generates a maximum equal path fringe contrast, produces an even two-sided interferogram without critical matching of the wedge angles of the beamsplitter and compensator wedges, and is optically phase tunable. The interferometer includes a mirror along the path of each beam component produced by the beamsplitter, for reflecting the beam component from the beamsplitter to a corresponding retroreflector and for reflecting the beam returned by the retroreflector back to the beamsplitter. The fact that the mirror "covers" the retroreflector, so that the mirror reflects the beam component before and after it reaches the retroreflector, results in the system being insensitive to slight tilting of the mirror.

Abstract: Shear transfer elements can be formed by winding or weaving unidirectional fibers on a support structure. In a winding operation the support structure consists of two intersecting planes of winding mandrels with the planes arranged in angularly spaced relation. Each plane has two pair of mandrels with the mandrels in each pair located on the opposite sides of the line of intersection between the two planes. After the fibers are wound on the mandrels, each mandrel is axially disposed in the opposite direction relative to the other mandrel in the pair and also to the adjacent mandrel in the other pair in the same plane. Next, the fibers are pressed to form the shear transfer element. In a weaving operation, the support structure consists of a pair of pivotally interconnected frames. The fibers are woven onto holders on the sides of each frame extending parallel to the pivot axis of the frames.

Abstract: A velocity servo for a continuous scan Fourier interference spectrometer of the double-pass retroreflector type having two "cat's eye" retroreflectors uses an open-loop, lead-screw drive system for one retroreflector with compensation for any variations in speed of drive of the lead screw provided by sensing any variation in the rate of reference laser fringes, and producing an error signal from such variation used to compensate by energizing a moving-coil actuator for the other retroreflector optical path, and energizing (through a highpass filter) piezoelectric actuators for the secondary mirrors of the retroreflectors.

Abstract: The corner of a structural member has first, second, third and fourth surfaces which converge to form the corner with first, second and third layers of fiber reinforced material successively applied to the corner surfaces to form the walls of the corner. The first layer of fiber reinforced material completely covers the first and second surfaces and partially covers the third and fourth surfaces. The second layer completely covers the second and fourth surfaces and that part of the third surface which remained uncovered by the first layer, and the third layer completely covers the first and third surfaces and that part of the fourth surface which remained uncovered by the first layer. The three layers arranged in this manner therefore produces corner walls having a thickness corresponding to two of the layers. The fibers in the two layers forming the walls extend in directions transverse to each other and form patterns different from each other.

Abstract: An over-under double-pass interferometer in which the beamsplitter area and thickness can be reduced to conform only with optical flatness considerations is achieved by offsetting the optical center line of one cat's-eye retroreflector relative to the optical center line of the other in order that one split beam be folded into a plane distinct from the other folded split beam. The beamsplitter is made transparent in one area for a first folded beam to be passed to a mirror for doubling back and is made totally reflective in another area for the second folded beam to be reflected to a mirror for doubling back. The two beams thus doubled back are combined in the central, beam-splitting area of the beamsplitter and passed to a detector. This makes the beamsplitter insensitive to minimum-thickness requirements and selection of material.