Abstract: An arm rest assembly is usable with a mouse pad or keyboard and provides vertical support for a user's arm to avoid fatigue and injury. The assembly has at least one forearm cradle and a thin profile which allows a mouse or digitizer pad to be placed on an assembly platen or to insert the assembly under a keyboard and support both forearms of the using while striking the keys of the keyboard with both hands. The assembly further includes a detachable slide which is pivotable and, at the same time, allows linear movement of the arm toward and away from the assembly. An interchangeable cradle for the user's forearm has springs to counteract the arm weight and to make the cradle stable in the horizontal position while permitting some tilting.

Abstract: In the case of a spinning or twisting spindle having a spindle shaft which is disposed in a spindle bearing housing by means of a bolster and a step bearing, it is provided that the spindle bearing housing is surrounded by a sleeve-type housing which is connected with the bottom of the spindle bearing housing by way of an elastic connecting element which forms a point of discontinuity for the flow of structure-borne sound. In addition, it is provided that the space between the spindle bearing housing and the outer housing is filled with a viscous medium up to at least two-thirds of the height of the spindle bearing housing.

Abstract: The present invention adds carbonates or chlorides of alkaline earth metals to the radioactive wastes containing sodium sulfate and subjects sulfate group in the radioactive wastes to reduction treatment, thereby converts the sulfate group into sulfides of alkaline earth metals which are chemically stable substances while suppressing SOx generation, and solidifies the radioactive wastes stably for an extended period of time by applying to the converted radioactive wastes solidifying treatment.

Abstract: A process for joining variously shaped vacuum heat insulating elements having edges adapted to be butted against each other or to overlap each other. A bellows is tightly connected with each vacuum heat insulating element in the area of its edges, the free edge of the bellows projecting beyond the element. The heat insulating elements are positioned such that the edges of the bellows rest against one another in an aligned manner or overlap, and the bellows are tightly connected with one another. The heat insulating elements are then moved against one another until their edges rest against one another or overlap, and are tightly connected with one another. The gap at the joint formed between the heat insulating elements and the bellows is evacuated and closed off tightly.

Abstract: In an automatic selector device of a motor vehicle change-speed gearbox, a frictional connection (i.e., a clutch or brake) which can be engaged and disengaged by a gear retention control valve is held in the instantaneous position on the occurrence of a fault in an electronic control unit. An auxiliary control force for actuating the gear retention control valve is obtained from a magnetic force of an electromagnetic control valve for the gear change. The electromagnetic valve is dependent on the control unit.

Abstract: To overcome compensation problems of longitudinal tolerances of the window panes of a motor vehicle side window which is subdivided by a window web if double glass panes are provided and a sealing lip which engages over the outer surface of the window panes is not desired or not possible, it is provided for the sealing and holding profile of the window web facing the fixed window pane to be slidably arranged in a recess thereof and to be constructed as a profile part guided on a guide face provided in the recess. The profile can be mounted in the desired position by a screw.

Abstract: The invention concerns a clamping tool for non-positive and high-precision clamping of workpieces by means of an expansion element, which is held inside the clamping tool and, in the unclamped state, is matched to the workpiece with little play but movably, and to which force may be applied radially over a large area. When force is applied, the expansion element expands reversibly, and bears non-positively against the workpiece, and holds it in place with high rotational accuracy and high clamping force. In order to be able to permit a high expansion rate of the expansion element in conjunction with a closed configuration of the latter, the invention proposes for the expansion element a so-called shape memory alloy, which is operated in the austenitic state with reversible stress-inducible possibility of change of the microstructure into the martensitic state.

Abstract: A method for electrically bonding surface-mountable integrated circuits (LLCCC-components) onto a printed circuit board. A specially shaped flexible bonding element having a semicircular central portion is used to flexibly connect the LLCCC components to the circuit board so that stresses due to thermal expansion of the components are absorbed.

Abstract: A shifting arrangement for an automatic transmission has a selector lever guided in a shifting channel by which various transmission gears can be preselected. The forward gears can be shifted by hand by a manual gear selecting device. The gear selecting device is arranged on the selector lever or is constructed, for example, as a steering column switch. An electronic control unit controls the automatic as well as the manual gear selection.

Abstract: A constructionally simpler and more reliable pressure-controlled valve device operates with opening pressure which can be switched to low pressure and high pressure on the cooling fluid circuit of an internal combustion engine, partricularly for a motor vehicle. The valve device can be subjected to gas or liquid from inside the cooling fluid container, depending on the operating condition of the engine, and a higher or lower opening pressure is effective depending on the type of pressure load. In such a device, two valves are functionally arranged within one unit such that they are located in parallel and open separately from one another for the different pressure ranges. For this purpose, the closing bodies of the low-pressure valve and of the high-pressure valve are located tightly one upon the other when the high-pressure valve is not open. When the high-pressure valve becomes effective, the flow outlet from the low pressure valve is shut off. It is shut off by a float raised by the cooling fluid.

Abstract: Bond sites on an integrated circuit chip are connected to bond sites on a package by photolithographically defining and selectively plating an air bridge between the chip and spaced-apart metallized bond regions of the package. A layer of dry photoresist is laminated onto top surfaces of each of the chip and the support package, so that photoresist bridges an air gap between the chip and the package. Next, the masking material is patterned, to expose the bond sites on the chip and the package. Over the entirety of the patterned structure, a thin plating-seed barrier metal layer is non-selectively formed. The seed metal layer is then covered with a second mask layer which is photolithographically patterned to expose a portion of the barrier seed metal layer extending between bond sites of the chip and the package. A second relatively thick metal layer is electroplated on the exposed seed metal layer, to form a conductive bridge between the chip and the package.

Abstract: An apparatus for testing a semiconductor integrated circuit by using probe lines and sense lines, has a selection device for applying a selective signal in sequence to one of the probe lines, and electronic switch devices incorporated in the integrated circuit so that the electronic switch devices and intersections, where the probe lines and sense lines intersect each other, are in one-to-one correspondence and the electronic switch devices can feed signals to their corresponding sense lines in response to selective signals applied to the probe lines. Each electronic switch device is connected to test points in the integrated circuit and connected to its corresponding sense line.

Abstract: A hand-held impact tool for effecting terminations in a telecommunications terminal block uses a blade with a setting edge and a pivotable cutter for cutting a conductor wire. Several impact settings for varying the seating impact force at the blade are settable by moving a pouch relative to the handle in one direction. Movement of the pouch in another direction will allow release of a blade stored inside the pouch or insertion of a blade into an empty pouch. A switch on the handle allows the cutter to be actuated by compression and release of the tool or to be disengaged so that only an impact seating function occurs.

Abstract: A convertible has a windscreen arranged behind a row of seats and extending upwards in the operating position approximately perpendicularly between two adjustable side panes. The panes are height-adjustable on a path which is curved with respect to the vehicle passenger compartment and can be lowered into an out-of-use position in the direction of the vehicle floor. The panes are also adjustable with auxiliary force actuation, and an entrainer which acts between a side pane and the windscreen is arranged on at least one of the side panes. By means of the entrainer, the position of the windscreen can be changed in accordance with the movement of the side pane. Thus, it is possible to compensate the transverse path of the side pane with respect to the windscreen by way of the entrainer.

Abstract: A spark gap unit that is easy to manufacture and significantly lighter than previously used spark gap units for generating underwater shock waves, particularly for non-invasive lithotrispy, has an internal conductor with an inner electrode, an insulation which at least partially envelops the internal conductor, and an external conductor with a bow and an outer electrode. The internal conductor is significantly shorter than the external conductor, and the external conductor at the rearward end of the spark gap unit projects beyond the internal conductor. The internal conductor, the insulation, and the external conductor are coaxially arranged. An outside diameter of the internal conductor is relatively small in comparison to an inside diameter of the external conductor. The spark gap unit has a hollow space inside the insulation, this hollow space being open in the direction of a rearward end of the spark gap unit.

Abstract: A flap arrangement, especially for a ventilation or airconditioning system or vehicles, has two flaps which are pivotable about pivot axes parallel to one another and which are coupled to one another for the oppositely directed pivoting movement. The coupling is made via a coupling rod articulated on the two flaps. To achieve a pivoting angle of the same amount on both flaps, the articulation points are so determined that, on the one hand, the radius of the circular paths described by them during the pivoting of the flaps is of equal size and, on the other hand, during the pivoting of the flaps, an imaginary effective straight line respectively connecting the two articulation points rotates about an imaginary center of rotation located approximately in the middle between the two pivot axes.

Abstract: A retractable roof for vehicles, in particular a hard roof for cabriolets, has roof pillars extending to the side of a rear window of the roof. The roof pillars, as seen from the vehicle side, enclose an obtuse angle with that longitudinal region of the roof which is situated in front of them. The pillars have a stowing position, when the roof is retracted, in a receiving space which is situated below the roof pillars when the roof is closed and into which the roof can be moved along its length, with the roof pillars in the lead, during retraction, after which they rest steeply erect in the receiving space. To ensure that the receiving space in the vehicle can be usefully reduced in size, the rear window forms the lower boundary of the roof over its width lying between the roof pillars when the roof is closed and can be moved out of its operating position into a stowing position which, with the roof retracted, is at a vertical distance from the lower ends of the roof pillars.

Abstract: A process for the production of titanium dioxide through the reaction of vaporous TiCl.sub.4 with oxygen under a pressure of between 2.4 and 3.4 bar, and a corresponding apparatus are used to achieve long permanent operation times. The oxygen required is indirectly preheated to between 850.degree. and 1000.degree. C. In a reaction chamber closed at one end, configured inside for advantageous flow and lined at least partly with refractories, the indirectly preheated oxygen is further heated by direct contact with very hot combustion gases of an auxiliary flame to temperatures, as is required, for the spontaneous reaction with the TiCl.sub.4 introduced downstream into the reaction chamber.

Abstract: In the case of a spinning machine comprising several spinning stations for the spinning of yarns from slivers, the cans from which the slivers are withdrawn are deposited above the spinning machine. From the cans, sliver tubes lead to the spinning stations. The spinning machine has a vacuum duct extending in the longitudinal direction of the machine which comprises a connection opening which is closed during the operation for each spinning station. When the operation is interrupted, the connection opening can be opened up and connected with the pertaining sliver tube.

Abstract: A pay telephone station having a lower housing coin chute (14) which is provided with a coin fraud prevention unit (10) in the form of a thin base (15) arranged in a slot (11) of a coin channel cover plate (12). The base (15) is provided with a pawl (23) having a tooth (24) with a chamfered face (25) which is biased into the path of a coin passing through a coin path (39) by a torsion spring (26). An anchor (59) for connecting a handset (56) to the upper housing coin dial unit (50) of the station includes a base with apertures (63, 64) and a V-shaped body (65) with a notch 66 defined between surfaces (69, 70). A long thumbscrew member (74) with a textured gripping surface connects the anchor (59) to a projector (51) integral with the upper housing (50). The handset cord assembly (A) is first passed through an aperture (54) in the projection (51) and then through the aperture (64) in the base (60).