Abstract: Regulation of the temperature of a pyrolitically cleaned cooking oven during cleaning to avoid local overheating of the oven base plate enamel. A heating-up power level is used until near the pyrolitic temperature, and then a lower power level is used for maintaining the oven at about the pyrolitic cleaning temperature. The change over takes place preferably at about 470.degree. C.

Abstract: An electrical apparatus is disclosed to increase the adhesive load per driving axle and therefore the corresponding permissible tractive and braking forces per driving axle of locomotives and motor-coaches which travel on rails and to contribute directly to the over-all tractive force or braking force of such vehicles. In one configuration the electrical apparatus includes a system of linear inductors for generating travelling magnetic fields in the rails, the inductors including a double sequence of conjugate poles, the lines of force of which pass transversely through the upper flange of the rail. In another configuration, the electrical apparatus includes both a system of linear inductors for generating, in the rails, a magnetic field, travelling or fixed, and a conjugate system of electrical brushes for injecting, in the rails, electrical currents in controlled relationship with the magnetic field.

Abstract: An electronic musical instrument for producing a vocal sound signal comprising a musical tone signal generator connected to a passing circuit for passing a musical tone signal under the selection of a key. A formant filter is connected in the passing circuit and includes a plurality of filters connected in parallel to one another. A control system is operative to produce two output signals in the passing circuit after the formant filter in sequence upon operation of the key, one of the output signals being a vowel sound and the other a consonant sound.

Abstract: Directly prior to the supplying of the expelling pulse of compressed gas into the pump tube, the suction supply is cut off, whereby the withdrawn portion of metal is expelled into the molten metal body under the action of the sum of its own weight and the compressed-gas pulse.To ensure the accurate timing of the suction cut-off moment and the gas pulse supply, the cover of the pump has mounted therein rod valves cooperating with a floating sleeve having its float actuated by the molten metal. The cover has also mounted therein at least one electric contact probe wired into the circuit controlling the supply of compressed gas pulses. The cutting-off of the suction is effected by the molten of an inner nozzle in an outer one, the nozzles being arranged at the intersection of the suction line and the compressed gas supply line.

Abstract: An article, such as a ring structure for example, having a band and an ornamental portion affixed on the top thereof. The band is formed of two portions each being pivotally hinged with respect to one another. One end of the portion of the band is provided with a wedge shaped resilient locking member which cooperates with a lock formed in a space formed between an upper surface of the band and the ornamental portion of the ring. For opening the ring from the closed to the open position, the user inserts a key in a keyway formed in the hollow space, whereby the key causes the locking member to be released from the lock and in turn as a rotational force applied the key upon the locking member, the band portion will be caused to pivot about the pivot point thus opening the ring band permitting release from the finger. Alternate embodiments include a locking arrangement without the hinge assembly.

Abstract: A keying system in an electrocin musical instrument comprises a circuit for generating harmonic level control voltages for controlling the levels respectively of harmonics (inclusive of the first harmonic, i.e.

Abstract: A vertical deflection circuit is used in a camera tube in a color television camera in which the camera tube is provided with an optical filter having an optically black part extending in parallel with a beam scanning direction of the camera tube. A vertical deflection circuit comprises a circuit for generating a saw-tooth voltage for vertical deflection, a vertical deflection coil for the camera tube, and a circuit for supplying the saw-tooth voltage thus generated to one end of the vertical deflection coil in DC coupling. Due to temperature fluctuation, a vertical deflection width fluctuates with respect to a position corresponding to a black part of the filter, as a reference.

Abstract: A process for the surface treatment of a synthetic resin lens comprising applying to the surface of a lens body made of synthetic resin such as allyl resin or the like a coating film of glass by a high-vacuum electric-field vapor deposition treatment. The glass coated lens body may then be formed with an anti-reflection coating film of magnesium fluoride or the like, also by a high-vacuum electric-field vapor deposition treatment.

Abstract: A device for fixing a planar work piece in position, particularly a semiconductor used in processing cycles for the production of integrated circuits. Said device having a supporting plane, a number of apertures being disposed in said supporting plane, said apertures being under reduced pressure, said work piece being pressed against said supporting plane by means of said reduced pressure. Said device being particularly suitable for precisely fixing a semiconductor substrate in the supporting plane, even in the case of extensive raised areas or warps on the lower side of the substrate. A number of independent reduced pressure systems are provided, said reduced pressure systems being connected with individual apertures or groups of apertures.

Abstract: An arrangement for regulating supercharger air pressure in a combustion engine operated with exhaust gas supercharge which equipped with an exhaust gas turbosupercharger, consisting of a supercharger and an exhaust gas turbine. The regulating device is a valve controlling an exhaust gas bypass to the exhaust gas turbine. The valve has a pressure unit divided by a diaphragm into two chambers. One side of the diaphragm is charged with supercharger air pressure, and the other side is loaded by a spring. The two chambers are connected by a calibrated opening in the diaphragm. Another valve connects the chamber holding the spring to the atmosphere and has the form of a nonreturn ball valve. The preloading of the spring of the nonreturn ball valve may be adjustable.

Abstract: A method of reducing internal stresses in and improving the mechanical properties of injection molded articles made of thermoplastic resins is disclosed wherein under in other respects normal injection molding conditions thermoplastic resins are injection molded at high injection and holding pressures within the range 250-800 MPa.

Abstract: The present invention discloses a merchandise dispensing device for a vending machine. The device comprises a dispensing part, with a dispensing compartment floor, capable of pivoting from an intake position to a dispensing position. In the dispensing position, the merchandise, capable of rolling, especially bottles or tins, stored in inclined compartments prop by a support arch. A roll-on surface is provided in between the support arch and the dispensing compartment floor, to facilitate a rolling of the merchandise in the intake position, in which the dispensing compartment floor forms an obtuse angle with the roll-on surface and the dispensing compartment floor is wider than the roll-on surface.

Abstract: A secondary air guide ring for an ignition plug, which is mounted on the outer periphery of a male thread of an ignition plug for mounting the same ignition plug in a cylinder head and provides a hermetical seal between the ignition plug and cylinder head. It is provided with an air guide hole for leading air into the cylinder and also with a check valve mechanism serving to prevent counter flow of gas.

Abstract: In the process of melting metal, a portion of molten metal is alternately withdrawn from beneath the surface of the body of molten metal and is expelled into the lower part of a metal holding means through a pipe of a gas-dynamic pump, which pipe, fitted in a cover of the metal holding means, is mounted for axial reciprocation and angular swinging in a ball-and-socket joint to thereby enable fan-like projection of a submerged metal jet within the limits of an angle corresponding to the dimensions of the metal holding means, thus providing for effective stirring of the melt body throughout the bottom area; stepwise reciprocation of the pump pipe is effected by means of a pneumatic positioning device, and the frequency of the metal-withdrawing and metal-expelling cycles is alternated during operating process with the aid of a preset time relay.

Abstract: A night sighting arrangement for automatic guidance of missiles, in which an image is displayed in Cartesian coordinates for the observation and target recognition. An image display in polar coordinates is provided for target identification and aiming procedures, as well as missile guidance correction. The display in Cartesian coordinates has a pivoting mirror used for the horizontal deflection. A polygon prism is used for the vertical deflection where reversal optics systems required for polar scanning, are fixed and the image is rotated by 90.degree. relative to the scan direction of the deflection mirror by the reversal optics. For the polar scan, the deflection mirror is held fixed in the middle position, and the optical elements causing the image rotation are rotated at half the image frequency. The same deflection mirror is used for the infrared picture taking and the optical image display, so that automatic synchronization takes place in the image direction during Cartesian display.

Abstract: A method and apparatus for the continuous production of bright copper rod from stock discharged from a continuous casting machine in which an oxide layer formed on the stock during its passage from the continuous casting machine in the atmosphere is subjected to an initial breakage and separation operation by discharging a chemically active liquid at a relatively low pressure against the oxide layer followed by descaling the stock after the initiation of the breakage of the layer by projecting jets of liquid at a relatively high pressure against the stock. The stock which is now free from oxide layer is rolled in a rolling mill in the presence of cooling and lubricating liquid which isolates the stock from the outside atmosphere and allows the formation of rod in the stands of the rolling mill. The rod obtained from the rolling mill is cooled by passage through a duct in counterflow with a cooling liquid such that the rod leaves the duct at a temperature below 80.degree. C.

Abstract: A tiled roof (1) has a plurality of rows of overlapping roof tiles (2) secured together along the rows in known manner. At the eaves (5) of the roof (1) the edges (10C) of the respective end tiles are covered over by respective edge covers (8). The covers (8) fulfill the functions of joining the adjacent tile rows together and securing the respective rows to the barge board (6) of the roof (1).Each cover (8) is one tile length long and has a web (14) of diminishing width with an inturned lip (13) along at least one edge thereof with the larger end (16) of one cover (8) of an upper tile row being slidable over the small end (15) of a second cover of a lower tile row to thus secure adjacent covers (8) together. In one embodiment an inturned lip (13A, 13B) is provided along both edges of the web (14) with the bottom lip (13B) engaging in a downturned lip (20) of a rail (17) secured to the plurality of tiling battens (11) and barge board (6).

Abstract: An apparatus for reproducing a signal from a rotary recording medium comprises a rotary structure adapted to carry the rotary recording medium thereon and to rotate, the rotary structure being shaped to form spaces between itself and the rotary recording medium, an air suction pump, and a structure formed at the center of the rotary structure or in the vicinity thereof thereby to provide communication between the spaces and the air suction pump. The rotary recording medium is drawn into intimate contact with the rotary structure so as to eliminate any warp in the rotary recording medium and cause the rotary recording medium to rotate together with the rotary structure.

Abstract: A breadmaking method and apparatus particularly adapted for household use. A combined trough and baking-pan unit is removably mounted on a lift table arranged in the oven and, when raised, is automatically covered by a downwardly spring-biased closure member and receives a measured amount of water as allowed to fall down through the bottom port of a water tank provided above and through holes formed in the closure member. Also provided are agitator means which are operable to act upon the mixture in the combined trough and baking pan unit raised. For fermentation and degassing of the dough thus formed in the unit, the lift table is lowered to its bottom position and held there for an appropriate length of time and thereafter the oven temperature is raised to a suitable level.

Abstract: The present invention relates to a skin-treating composition comprising an aqueous phase in which urea and a salt are dissolved. The said aqueous phase should have a pH value of 2-8, especially 3-7. Optionally, the composition of the invention may comprise a lipid phase, wetting or emulsifying agents and amino acids. The composition is per se beneficial for the treatment of certain abnormal skin conditions; it is also an excellent vehicle for therapeutically active drugs for the treatment of pathological skin conditions.