Abstract: The present invention relates to a process for preparing carboxylic acids by oxidizing primary alcohols in the liquid phase in the presence of ruthenium dioxide as a catalyst.

Abstract: The inventive gripper device for a tufting machine comprises a gripper device (10). The gripper device contains a gripper (11) and a guide member (12) that has a cutting edge. The gripper (11) has two gripper sections that are at a distance from each other in the direction of movement and are preferably separated from each other by a step (33) and/or by an extension (34), said gripper sections being configured as gripper edges that are parallel to each other, but spaced apart and offset with respect to each other in view of the pile height direction. The reversal between cut pile operating mode and looped pile operating mode takes place by means of the longitudinal adjustment of the gripper (11).

Abstract: A tool 1 for a textile machine with the tool having a wear-minimizing coating on its basic tool body 2, which wear-minimizing coating acts as an anti-wear element 15. In order to accommodate this coating, the basic tool body 2 is provided with a recess at a suitable location, and the coating is built up on the bottom of the recess, for example, by plasma-spraying. Preferably, an oxide-ceramic material is used for the coating.

Abstract: A gripper device in accordance with the invention comprises a gripper (3) and a counter knife element (4) that are fabricated separately and joined. As a result of this, optimal material combinations are possible, which will deal with both types of wear, namely between the gripper (3) and the tufting needle (5), on the one hand, and between the knife (6) and the counter knife element (4), on the other hand. The gripper module (1) accommodates the counter knife element (4), which, in turn, supports the gripper (3). The two parts may be joined by caulking, cementing, riveting, screwing or similar measures, or they may be cast together in the gripper module (1). The cutting of the loop is done exclusively between the counter knife element (4) and the knife (6).

Abstract: The inventive gripper device for a tufting machine comprises a gripper device (10). The gripper device contains a gripper (11) and a guide member (12) that has a cutting edge. The gripper (11) has two gripper sections that are at a distance from each other in the direction of movement and are preferably separated from each other by a step (33) and/or by an extension (34), said gripper sections being configured as gripper edges that are parallel to each other, but spaced apart and offset with respect to each other in view of the pile height direction. The reversal between cut pile operating mode and looped pile operating mode takes place by means of the longitudinal adjustment of the gripper (11).

Abstract: A method for manufacturing a workpiece and a torque transducer module for material removal techniques, are disclosed, where machining friction varies in dependency of machining depth and the torque/deformation of a shaft is monitored for controlling material removal. The module has a body extending along a central axis and two end portions. Each end portion is part of an axial mount for a respective part to be axially mounted thereto. The module also includes a strain gage sensor arrangement with at least one electric output.

Abstract: An apparatus for measuring ammonia gas concentration in an ongoing chemical mechanical polishing (CMP) cycle utilizing an acidic CMP slurry, having the following components: a. A transferring means to collect a sample of the acidic CMP slurry; b. A converting means to convert the acidic CMP slurry to a basic slurry; c. A measuring means to measure the ammonia gas present in the basic slurry; d. A detection means to signal the end of an ongoing CMP cycle.

Abstract: An instrumentation device for controlling one or more instruments, wherein the instrumentation device having an interface which accepts at least three sets of inputs and transmits at least three sets of outputs, the interface capable of transmitting signals of different voltage between the individual inputs and individual outputs of the interface and wherein the interface is capable of accepting, translating and transmitting as one of the at least three sets of outputs, input from more than one set of the at least sets of three inputs.

Abstract: An apparatus is described for detecting the presence of a gaseous chemical produced during a chemical-mechanical polishing operation. The apparatus includes a catalytic converter, a reaction chamber and a light sensor. The catalytic converter, heated to about 800° C. converts the chemical to a different chemical product. The reaction chamber produces an excited species; the pressure in the reaction chamber is maintained sufficiently low to substantially avoid collisional deactivation of the excited species, so as to permit real-time detection of the chemical. A light signal from the excited species is input to the light sensor. An output from the light sensor corresponds to the real-time detection of the chemical, thereby permitting real-time control of the chemical-mechanical polishing operation.

Abstract: The invention discloses an apparatus for detecting the presence of a chemical in a gaseous state, having:

Abstract: Device for in-situ collection of a gaseous reaction product from a polishing slurry as a workpiece, such as a semiconductor wafer, is being polished with the slurry, including a probe capable of being placed in contact with the slurry, the probe having a channel for transmitting the gaseous reaction product to an analyzer, a first hydrophobic membrane for allowing passage of the gaseous reaction product from the slurry to the channel, and means for directing a carrier gas through the channel.

Abstract: A flow meter includes a rotor housing having an inlet, an outlet, and a bore extending axially through the housing from the inlet to the outlet, and a screw spindle arrangement including at least two rotary helical worm bodies which are disposed in the bore and which engage in a form fit manner within one another. A pulse generator is mounted on one of the worm bodies and triggers electrical pulses in the mating measuring transducer which are dependent upon the rotational speed of the worm body. The measuring transducer has a pulse-adjusting and pulse-shaping stage which adjusts the magnitude and/or frequency of the pulses relative to a volumetric flow rate of fuel to the bore. An electric counting mechanism receives the electric pulses from the pulse-adjusting and pulse-shaping stage and typically transmits these pulses to a display unit for display.

Abstract: Member for mixing and dispensing a two-component mass from a tool arranged to separately squeeze-out the two components. The member includes a mixing tube (1) enclosing a coaxial tube section (2) connected to the front end (3) of the tool for conveying one of the components from a tool outlet (3b) to the mixing tube (1). Another tool outlet (3a) conveys the other component directly into the mixing tube (1). The tube section (2) has a one-way valve at an outlet opening (2b) into the mixing tube (1). The one-way valve includes an expandable tubular sheath (5) covering the outlet opening (2b) through the tube section (2). The one-way valve prevents any backflow of the mixed components from the mixing tube into the tube section. Mixed components which harden within the mixing tube (1) form a seal or block. Accordingly, when the tool squeezing out the component is operated with a blocked or sealed mixing tube, no backflow into the tool can occur.

Abstract: The device comprises an evaluation unit and at least one transducer for feeding the electric signal to this unit on the occurrence of a characteristic event and the evaluation unit comprises a recognition unit sensing the occurence of the characteristic event. To permit determination of the trigger point characterizing the occurrence of the characteristic event also in the case of heavily noise-contaminated measuring signals the evaluation unit is provided with one or several comparators in addition to the recognition unit, whose thresholds are spaced out over a certain range of levels, and--depending on whether the transducer signal has reached the threshold of the recognition unit--by using the information contained in the evaluation unit, which is influenced by the sequence of the comparator responses according to the signal shape delivered by the transducer, for determination of the trigger point characterizing the occurence of the characteristic event, in a manner predetermined in the evaluation unit.

Abstract: A partitioning circuit will partition into subintervals the time interval between two signals delivered by a recognition circuit, and will activate a gate circuit during one of these intervals which has been predetermined. In addition to the recognition circuit, the sequence of signals from a sensor responding to the occurrence of an at least approximately periodic event, is fed to a comparator circuit which will transmit a pulse to the gate circuit each time a certain signal level has been exceeded. If the gate is active, this pulse will be available for further processing.

Abstract: The present system automatically stabilizes the travel direction of an aircraft rolling out after touchdown on a runway. A corrected difference control signal is supplied to the steering mechanisms of the aircraft, including, if desired, the brake system. The control signal is generated in a comparator or transducer which receives at its inputs an actually measured signal representing changes in the travel direction of an aircraft, and a rated signal to produce a combined steering signal which is supplied to the nose wheel steering and/or to the wheel brakes.

Abstract: A device for measuring rotational angles of a rotating shaft of a machine, and comprising transducers signals of which being released by one or several reference angle signs or a machine characteristic phenomenon respectively, and being input to a processing unit. The processing unit comprises a frequency multiplier circuit and a counter the frequency multiplier circuit multiplying the signal of one or several reference angle signs, with the counter counting the multiplied signals and being resettable and startable by either a reference angle signal or the signal released by the machine characteristic phenomenon and being blockable by the respective other signal.

Abstract: A data-processing machine having a single operator station is provided with a printer comprising a supply holder on the front of the machine next to the operator station for holding a form band, a support on the machine next to the station with an upwardly concave surface, and a receptacle on the back of the machine below the support for catching the printed form band. A guide and a transport device is provided for guiding the band up from the supply holder in the front of the machine, over the surface of the printing station and down to the receptacle. A printing head which is vertically displaceable above the upwardly concave surface is displaceable horizontally along the surface to print the band. A guide slot extending down toward the supply is pivotal between a down position for normal operation of the machine and a raised position for threading a new form band in and a detent is provided for holding it in the up position during reloading.

Abstract: A dispenser for a retractable safety belt, to be used by the driver of a vehicle, comprises a holder in which a roller loaded by a retraction spring is journaled. The belt, anchored to the roller and partly wound around it, coacts with an insert in the form of a resilient ribbon which is coiled with the belt about the roller during at least an initial phase of a pull-out stroke and about a collateral axis alongside the belt during at least a final phase of that stroke of exert upon the belt a supplemental biasing force which either aids the force of the retraction spring in the initial phase or opposes it in the final phase. The changeover between the two phases can be brought about by a beginning windup of the free ribbon end, by a diversity of inherent stress in two longitudinally adjoining ribbon sections, or by a detent responsive to the coil diameter which holds the ribbon away from the belt in the final phase of pull-out and lets it rejoin the belt at an intermediate stage of the retraction step.

Abstract: A method of manufacturing concentric machine elements from flat steel strips by permanently bending a flat steel strip of limited length along its longitudinal axis, and burring the concave surface of the strip, while supported, through the application of a force on the convex surface of the strip, so that a concentrically shaped casing is formed.