Abstract: To compensate the Doppler flow measurement for the angle of the ultrasonic beam relative to the flowing medium, the ultrasonic applicator includes a mechanical electrical angular position sensor for generating a signal as the applicator is shifted from a perpendicular relationship to the flow axis to a desired oblique angular relationship. As a particularly preferred embodiment, a rotary member is held relative to the flow axis as the applicator axis is rotated, placing a strain gauge under a proportional tension to unbalance a bridge circuit. A further development provides a sensor output as a function of the cosine of the angle of interest so that the bridge output is in the form required to compensate the flow measurement signal without a prior trigonometric operation thereon.

Abstract: Respiratory flow rate is measured independent of gas type by establishing a supplementary flow component of the respiratory medium via a supplementary sensor modeled according to flow rate ratio after the primary respiratory flow sensor such that the sensors are subject to respective corresponding errors in dependence on the same parameter of any of the respective respiratory media. The respiratory flow signal is continuously corrected in dependency on the currently existent composition of the respiratory medium by forming the quotient of the respiratory flow signal and the supplementary signal from the supplementary sensor. In a second disclosed embodiment, the supplementary flow component is coupled to the primary respiratory flow sensor so that similitude is automatically provided. Either embodiment may be utilized to provide an inverse of the supplementary signal as a measure of a composition-dependent parameter such as viscosity, density or temperature coefficient of the respiratory gases.

Abstract: A tool holder includes a shank that has an axial passage therethrough for conducting coolant. The end of the shank remote from the cutting tool has a hollow stop screw which determines the effective length of the tool holder and which contains a check valve assembly, thus enabling the tool holder to be used in machine tools that rely upon the build-up of an air pressure as a consequence of insertion of the tool as one of its control functions.

Abstract: A semiconductive structure comprised of a semiconductive element, feed electrodes and other related components thereof, each provided with an aperture aligned with the aperture of the other elements and a single clamping bolt means positioned through the aperture of each component to align the components relative to one another and to exert pressure on the semiconductive component.

Abstract: A method and apparatus for the thermal treatment of alkali-containing pulverent raw material used in the manufacture of cement in which the material is preheated in a preheater and after sintering in a furnace is conveyed to a cooler. Alkali free exhaust air from the cooler is conveyed into the preheater for heating the material and the alkali-containing furnace exhaust gases are cooled by means of adding a portion of the pulverized raw material to them in a heat exchanger. The alkali salts are condensed and are separated off in a dust collecting chamber.

Abstract: A hydrogen-occluding alloy consisting of at least one element selected from rare-earth elements R and magnesium or of at least one element selected from rare-earth elements R, magnesium and nickel has a small density and is inexpensive and has an excellent hydrogen occlusion capacity as compared with the conventional La-Ni series alloys. The R-Mg series alloys and R-Ni-Mg series alloys are suitable as a material for hydrogen container.

Abstract: An air venting or bleed device for the ink supply systems of ink jet printer unit in which individual printing jets are connected through a distributor arrangement and supplied with printing liquid from a reservoir, with air being bled from the reservoir through an air-bleed passage disposed in the device and communicating at one end with the reservoir, and at the other with the surrounding air, the air-bleed passageway having a diameter sufficiently small to produce a capillary effect.

Abstract: A magnetic card recorder which is capable of recording and replaying a signal on a magnetic track on the card and which has an actuator including at least two card engaging portions for engaging and detecting the card as it travels through the machine in which the two detecting means are spaced on opposite sides of an erase head which is mounted so as to float relative to the card, and, thus, to prevent transverse fluctuations between the erase head and the card.

Abstract: A semiconductor memory has storage cells composed of MOS selector transistors operated by a drive line and storage capacitors connected to selector transistors. The selector transistors are constructed in accordance with the V-MOS technique. A semiconductor substrate is highly doped with atoms of one conductivity type and carries a buried layer highly doped with atoms of the opposite conductivity type. An epitaxial layer, weakly doped with atoms of the one conductivity type is carried over the buried layer and the semiconductor substrate. A second layer, highly doped with atoms of the opposite conductivity type, is carried over the epitaxial layer above the buried layer. A V-shaped groove divides the second layer into two sub-portions in the region of the storage cells and extends into the buried layer and a conductor path is disposed in the groove.

Abstract: In the illustrated embodiments the primary voltage of the high voltage transformer is supplied via a voltage divider so that the secondary voltage does not exceed a desired value during heating of the X-ray tube filament. As the secondary load increases with a consequent tendency to reduce secondary voltage, an element or elements of the voltage divider are switched so as to increase the voltage supplied to the primary winding of the high voltage transformer. In a monopulse circuit, diode means are associated with the voltage divider which are poled such that the voltage divider controls the positive polarity secondary half wave voltage. In one embodiment, a single switch may simultaneously bypass the series resistance of the voltage divider and remove a parallel resistance with respect to one polarity of primary current.

Abstract: A method and mechanism including a housing having a screening chamber therein with a cylindrical screen and foils rotating past the surface of the screen with the housing having circumferentially spaced outlets which are at nonuniform circumferential locations, are different in number than the foils, and lead to a common manifold which will lead to a paper machine headbox. An air dome is at one end of the chamber.

Abstract: An annunciator readout unit for continuously monitoring and indicating to an operator of a machine such as a grain dryer, the condition and stage of the grain drying process and further including warnings and unusual conditions including a grid structure surrounding a plurality of indicating lights with sealing material between the backing plate and the grid structure and further including composite layers of masks, opaque sheets, a thick clear plastic sheet and a top indicating sheet including a mask portion mating with the grid structure and including clear and colored panels overlying the various indicator lights with printed material formed thereon and wherein due to the structure of the composite sheets light from a particular light source does not fringe into adjacent chambers.

Abstract: An athletic training and exercising device, particularly for developing and training the body in connection with gymnastics and exercise on the pommel horse. The invention utilizes a pair of simulated pommels in combination with a supporting structure, mounted on wheels, and having an endless belt upon which the user's legs may be supported, whereby the general movements of the body with respect to the normal pommel horse may be simultated without any danger to the user and at the same time giving substantially complete freedom of flexibility and movement of the user's legs, with complete safety and reliability.

Abstract: A surface acoustic wave apparatus is disclosed in which a conductive earth pattern is formed on almost all the upper surface of a header, a surface acoustic wave element is provided on the header through the conductive earth pattern, and the conductive earth pattern is separated between an input side earth pin and an output side earth pin.

Abstract: Thermistors (NTC) containing a mixture of terbium oxide and a material selected from the group consisting of samarium and ytterbium oxide are useful in high temperature environments.

Abstract: A disc-shaped information carrier for high-density storage, in particular for video signals, has the information provided on both sides of the carrier and stored in the form of a beam-reflecting surface structure which is covered by a layer of translucent material. A disc-shaped base element is formed by injection molding, pressing, stamping or the like to exhibit a surface structure corresponding to the information to be stored on both sides thereof. Each side has a thin metallic coating applied thereto which maintains the same surface profile and the information structure is protected on each side with a layer of transparent material.

Abstract: A switching regulator includes a chopper circuit and a DC-DC converter. A switching signal for use with the chopper circuit is derived from an inverter portion of the DC-DC converter so as not to use an external pulse oscillator. A DC voltage feeback circuit is provided from the output of the DC-DC converter to the chopper circuit so as to stabilize the DC output signal of the DC-DC converter.

Abstract: A process for producing phosphorous-doped silicon monocrystals having a select peripheral depletion or enrichment of dopant atoms along the radial direction of such monocrystals comprises providing a silicon monocrystalline rod homogeneously doped with phosphorous, as by neutron doping, and subjecting such homogeneously doped monocrystalline rod to a peripheral zone melt cycle in a select atmosphere such that the peripheral melt zone depth within the monocrystalline rod is controlled so as to be less than the radius of the rod in accordance with the desired peripheral dopant concentration in the ultimately attained rod.

Abstract: A damper for use with work arbors supported at only one end is disclosed which acts to reduce harmonic vibration and chatter as the arbor rotates and a cutting tool operates on the workpiece. The damper consists of a damping collar, with an interior radius greater than the exterior radius of an associated spacer, which freely rotates on that spacer such that the collar rotates independently of the work arbor at a speed of about 66% of the arbor's speed and acts to suppress undesirable chatter, and harmonic vibrations.

Abstract: A non-rigid aerodynamic balloon having integral stabilizing tail fins is provided. The balloon is most useful in tethered applications, such as for advertising. The balloon is formed from a plurality of flexible skin-like gores which are joined together with a plurality of longitudinal seams running lengthwise of a main body of the balloon. Each gore is a continuous piece of flexible skin-like material which forms a portion of the body and a side wall of one of the stabilizing fins. The longitudinal seams join adjacent gores along outer edges of the stabilizing fins so that seams are not required to join the stabilizing fins to the main body of the balloon.