Abstract: An impression data-processing apparatus, wherein a coded data denoting a numeral is formed of 4 bits; a coded data denoting a letter is formed of a combination of two 4-bit groups, that is, 8 bits; both forms of coded data are stored in a memory; the memory is further supplied with a space data indicating a space on a recording medium and a judgment data for distinguishing between a numerical data and a letter data, said space data and judgment data being constituted by two of those 4-bit codes included in sixteen codes formable from 4 bits which are not used to denote either a numerical data or letter data, and which comprises means for detecting the space data and judgment data in units of 4 bits; bit number read-controlling means for detecting he numerical data and letter data in units of 4 or 8 bits; and printing means for carrying out the spacing of a recording medium when the space code is detected by said space data-detecting means, and printing a numerical data or a letter data read out of the recordi

Abstract: The present invention provides electrical contacts having at least one contact surface consisting essentially of a silver palladium alloy containing 10-50 percent by weight palladium, 0.1-8 percent copper, 0.1-6 percent indium, 0.1-6 percent tin, and the balance essentially silver.

Abstract: A Wiegand wire forms part of a stator coil facing a rotor on which permanent magnets are located. The stator coil has two coil portions or coil sections which are wound or connected to provide opposing inductive outputs upon passage of the magnets in front of the coils to cancel each other, the Wiegand wire change of magnetization providing the additional read-out output, the amplitude of which will be independent of speed, but the recurrence rate will depend upon speed of the magnets passing the stator of transducer.

Abstract: The material is located at one side of the screen of a screen printing stencil, the other side of which has the reinforcing substance, for example curable plastic material, applied, uniformly distributed over the screen. To apply the substance to the material, the screen is located at the end of a closed pressure vessel into which the reinforcing substance is introduced and to which, further, controlled pneumatic pressure is applied when printing is desired, to flow the reinforcing substance through the openings of the screen, and bulge the screen outwardly, for example into contact with the material to be reinforced. After application of the material, the pressure is released, permitting the screen to return to normal position and spaced from the material.

Abstract: An encoding circuit is provided permitting energization of an electromagnetic unlocking solenoid if a series of push-button switches is operated in accordance with a predetermined code. The circuit includes a memory which stores the sequence of operation of the push-buttons in accordance with the code in form of a binary code word. A comparison or decision stage is connected to the memory, typically a shift register, and connected to the memory position of all the digits of the code associated with the specific lock of a binary 1 value, as well as all the digits of the code in a binary 0 value, the decision circuit controlling the unlocking solenoid only if both the binary 1 and binary 0 values stored in the memory upon sequential push-button operation conform to the code associated with the lock, and, simultaneously, a timing circuit energized upon initiation of the first properly coded push-button still provides a timing energization signal, or operating energy to the circuit.

Abstract: Two identically folded strips enclose an intermediate space accessible at e edges of the strip, and the fold cavities opening to the outside of the strip structure are closed off at the strip edges and covered by outside cover plates over their central portions, so that one medium may be caused to flow through each of the sets of outside fold cavities and a third medium through the intermediate space. The third medium flows countercurrent to the direction of flow of the other two. Modules of four such matrices utilize inlet and outlet ducts so that the two or four matrices in a compact modular structure can be structurally repeated in accordance with the number of modules desired in the particular application. The inlet and outlet ducts have tapering flow cross-sections.

Abstract: A process for producing methyl formate which comprises dehydrogenating methanol in vapor phase in the presence as a catalyst of copper, zirconium and zinc and optionally aluminum is disclosed.

Abstract: To prevent splashing off of water and ink emulsion from rollers in the inking system due to feedback of wetting water to the inking system, a roller of the inking system, preferably an ink supply roller accepting ink from a ductor roller, is associated with a return roller which accepts the water-ink emulsion, and a stripping arrangement which strips off that emulsion from the return roller returns the emulsion to the ink well or ink trough of the ink supply system. The stripping element may be the ductor roller itself, rotating in counter direction to rotation of the return roller, intermediate rollers in counter-rotation with respect to the ductor roller, or doctor blades, or the like.

Abstract: In a fire detection system, detectors of different sensitivities are arranged in pairs and the pairs of fire detectors are positioned at regular intervals along an elongated protection area, whereby detectors of one sensitivity alternating with detectors of the other sensitivity are connected via two line systems to a signal center which emits an alarm signal when an alarm signal is simultaneously received via both line systems. In use, for example in a vehicle tunnel, a more uniform response sensitivity is obtained along the protection area, accompanied by a decrease in the necessary number of fire detectors and a reduced tendency to false alarms.

Abstract: A reflector of an optical system has its position controlled by piezoelecc devices operating at three points of the reflector disposed at the apices of an equilateral triangle. These are driven by summing amplifiers each of which has an input to which a signal for producing displacement of the reflector without change of tilt is provided and one or more inputs connected to the output of a matrix circuit responsive to signals for producing tilt of the reflector about two mutually perpendicular axes both perpendicular to the direction of displacement produced by the previously mentioned inputs.

Abstract: The various air motors of a rock drilling rig are supplied with oil through oil lines which are furnished with predetermined metered oil flows from positive displacement pumps that are operated in synchronism with each other by an air operated oscillator. There is a normally closed shut-off valve in each oil line. The respective shut-off valve is opened when the respective air line is pressurized. When a shut-off valve is closed, the respective metered oil flow escapes through a pressure relief valve.

Abstract: A video disk recording made in accordance with U.S. television standards, namely a line scanning frequency of 15,734 HZ and a field scanning frequency of 30 HZ is played back through a pick-up feeding a television receiver operating at the European standard line scanning frequency of 15,625 HZ provided with a switch that has changed over the vertical scanning frequency to the 30 HZ U.S. standard field scanning frequency. In order for the playback system to work with the European line scanning frequency, the record drive is timed to operate at the proportionately low speed and the speed is held to the timing pulses produced by an oscillator by feeding back the picked up synchronizing signals and comparing them with the oscillator timing pulses in a phase detector that controls the speed adjustment of the playback motor.

Abstract: Timing errors are detected by phase comparison of the color carrier at the line scanning frequency repetition rate and the errors so successively determined for one oblique track on the tape are loaded into an intermediate register. While a second magnetic head of the reproducer performs the same operation on the next track, the errors stored in the intermediate register are subtracted from their average value produced by an integrator and loaded into a final storage register, of which there is one for each track of a line packet, but only after being combined, in a noise-scrubbing process, with an error value previously stored in a corresponding location in that register so as to provide a suitable moving average.

Abstract: Novel cephalosporin derivatives having a (1-alkyl-1H-tetrazol-5-yl)vinyl group at the 3-position of the cephem nucleus and showing an excellent antibacterial activity are disclosed. A process for preparing the cephalosporin derivatives is also disclosed.

Abstract: Polysaccharides forming gels are produced by cultivating a microorganism such as Arthrobacter carbazolum FERM 2574 in a suitable medium.

Abstract: Process for indurating dried pellets in a rotary kiln, characterized by charging the dried pellets and coke in the range of from about 2% by weight to about 20% by weight on the weight of the pellets into the rotary kiln, the coke having a size of from about 5 millimeters to about 30 millimeters, drum index (DI.sub.5.sup.80) of more than 70, reactivity index (AG) of less than 50 and tumbler index (TI.sub.50.sup.400) of more than 50 measured on the basis of Japanese Industrial Standard K2151, and heating the pellets in the kiln is disclosed.

Abstract: Retaining devices for orthodontic brackets comprise means for passing through an opening behind an orthodontic bracket or through an opening between twin-brackets and including means connected thereto for retaining an arch wire in an arch wire receiving slot of a bracket. The retaining means for passing behind an orthodontic bracket includes a bent-over arrangement which springingly wedges in a space defined between the rear of the bracket and, for example, a band to which the bracket is mounted. The retaining device also has an edge which bitingly engages the band, or the like. In the embodiment for a twin-bracket, the retaining means has a rear portion which passes through an opening defined between the brackets of the twin-bracket arrangement for engaging the bracket arrangement with spring-type action.

Abstract: A process for flameproofing cellulosic fabrics which comprises impregnating the fabric with an aqueous solution of a THP salt with or without condensation with a nitrogen-containing compound, and treating the impregnated fabric with ammonia to produce a cured resin, wherein the treatment with ammonia is carried out by passing the impregnated fabric through seals into and out of a closed chamber and in contact with at least one duct located in the chamber and having one or more orifices through which gaseous ammonia is caused to issue and pass through the fabric over its width, the chamber being provided with means to prevent condensed water formed by evaporation and/or chemical action from dripping on to the fabric.

Abstract: A comparing apparatus for comparing variable length word information comprises: first and second memory means for storing record information to be compared, each record information including a plurality of variable length word information arranged in series fashion with intervention of word boundary codes; means for specifying the address of the word information to be compared and for directing whether the specified word information are to be compared truing up the most significant digits or the least significant digits; means for comparing the specified word information in accordance with the direction from the specifying and directing means; and means for reading out the record information from the memory means specified in accordance with the result of the comparison of the comparing means.

Abstract: From roasted products of used catalysts from hydrotreatment desulfurization of petroleum, valuable molybdenum, vanadium, cobalt and nickel are recovered easily and a high percent recovery by means of a combination of simple chemical procedures and also inexpensive chemicals. The recovered metal components can be reused for preparing new catalysts and the like.