baber/WOPTO huggingface dataset:
Patent GB-626292-A (GB)
Title: Improvements in and relating to grate bars for endless travelling grate stokers
IPC: F23H11/00
Filed: 1945-01-03
Abstract: 626,292. Bars for travelling grates. POCOCK, E. J. Jan. 3, 1945, No. 304. [Class 51 (i)] Grate bars for endless travelling grate stokers, of the type adapted to be arranged in transverse rows with air gaps between adjacent bars, and to be moved through the furnace by suitably supported and spaced chains 8 connected to the transverse rows by bulb bars 9 extending across the grate, and in which the air gap left between every two adjacent bars upon assembly is sinuous in plan throughout the greater part of its length, by forming a portion of each substantially vertical side face of the bars with alternate projections 20 22 and recesses 21, 23, the relative cross-sections of the projections being such that when two grate bars are juxtaposed in a transverse row the projections on one bar enter the recesses of the adjacent bar, have the alternate projections and recesses, which extend downwardly a desired distance from the top or fuel-supporting surface of the grate bar, curved, the curved form being generated about the axis of the bearing or jaw of the grate bar which engages the bulb bar. The portion 17 of the web of the bar near the bearing has a downwardly converging taper section and spacing projections 13, 14 cast thereon.
Patent GB-758026-A (GB)
Title: Electro-magnetic recording apparatus
IPC: G11B5/012
Filed: 1954-01-06
Abstract: 758,026. Magnetic recording apparatus. RUDMAN DARLINGTON & CO., Ltd., RUDMAN, J., DARLINGTON T., and SANDS, J. CUNNINGHAM-. Jan. 6, 1955 [Jan. 6, 1954], No. 334/54. Class 40(2) In a magnetic recording apparatus transverse traces 14, 15, 16, 17 are recorded on a moving strip 10 by a scanning device 12 carrying uniformly spaced recording heads A, B, C, D, the spacing of which is such that as one head completes its traverse the next one has already commenced its traverse, the period of overlapping being compensated for by the tapered erazing of the ends of the traces by erazing heads 19. A screening plate 13 shields the record tape from the effect of the heads as they pass over the tape on the second half of the rotation of the device 12.
Patent GB-1424941-A (GB)
Title: Method of removing oxides of sulphur from waste gas
IPC: B01D53/50
Filed: 1974-01-04
Abstract: 1424941 Removal of sulphur oxides PULLMAN Inc 4 Jan 1974 00343/74 Heading C1A A process for removing oxides of sulphur from industrial waste gas comprises: scrubbing said waste gas in a contacting zone with an aqueous medium having a pH below 7À1 containing calcium carbonate, carbon dioxide and at least 3 wt. per cent of one of sodium, lithium, potassium, magnesium and ammonium sulphates; precipitating solids comprising calcium sulphate and/or calcium sulphite from the aqueous medium; removing a portion of said solids; and introducing a further portion of said solids with said aqueous medium to the contacting zone. Preferably the concentration of soluble sulphate in the aqueous medium is in the range 5 to 27 wt. per cent; the waste gas and the aqueous medium are contacted in a Venturi scrubber for less than 3 seconds; and the temperature of the contacting zone lies between 100‹ and 180‹ F., the pressure therein being 12 to 18 p.s.i.a. In an improved embodiment of the process, at least part of the aqueous medium is recovered as an aqueous supernatant liquor containing at least 3 wt. per cent of one of the above-mentioned soluble sulphates, and said aqueous supernatant is separately introduced to the contacting zone. When the waste gas contains free oxygen or sulphur trioxide the soluble sulphates may be generated in situ by the addition of ammonia or the oxide, hydroxide, carbonate, bicarbonate, sulphite or bisulphite of sodium, lithium, potassium, magnesium or ammonium or mixtures thereof.
Patent GB-572052-A (GB)
Title: Improvements in or relating to spinners for the hubs of airscrews
IPC: B64C11/14
Filed: 1944-01-08
Abstract: 572,052. Airscrew spinners. CONSTANT SPEED AIRSCREWS, Ltd., and MARSHALL, F. G. Jan. 8, 1944, No. 386. [Class - 114] In an airscrew spinner which is detachably secured to the hub by means of two slidably engaging annular members b, c carried by the spinner and hub respectively, either the member c is coned at the receiving edge c<4>, or the member b is flared at the leading edge b<5>, and the member so formed is also provided with an annular series of transverse slits c<3> or b<4> open at, and extending from, said receiving or leading edge. A fibre ring e may be disposed between the members b, c, and a stop plate h also may be provided. Specification 557,120 is referred to.
Patent GB-1015801-A (GB)
Title: Improved supply circuit for a.c. motors
IPC: B60L11/18
Filed: 1963-01-04
Abstract: 1,015,801. Control of A.C. motors; inverting. LICENTIA PATENT VERWALTUNGSG.m.b.H. Jan. 4, 1963 [Jan. 5, 1962], No. 506/63. Headings H2F and H2J. An A.C. motor M is supplied from a D.C. source through an inverter 3, 4, connected in series with commutating devices 1, 2, the motor flux being kept substantially constant by maintaining the supply voltage proportional to the supply frequency. The inverter 3, 4 is supplied with control signals which determine cyclically the starting point of current supply to the motor, the commutating devices determining the cyclic termination of the current. The commutation between the devices 1, 2 is effected by capacitor 6. The mean supply voltage is controlled by delaying the control signals supplied to triodes 3, 4 with regard to those fed to the devices 1, 2. Reactive current and dynamic current is returned to the D.C. source through choke 13 and diode 14, the return current being controlled by triode 15. The motor may have a wound rotor connected to a variable resistor, associated with electronic switches. The motor may be reversed by pulse control, and braked by reducing the frequency or reversing the field.
Patent GB-667260-A (GB)
Title: Improvements in or relating to railway tracks for toy vehicles
IPC: A63H19/30
Filed: 1950-01-09
Abstract: 667,260. Toy railway tracks. HUARD, G. G., and RAYMOND, J. E. R. Jan. 9, 1950 [Sept. 15, 1949].No. 512/50. Class 132 (iii). A toy railway track element, for example, of sheet metal or cast or moulded material, comprises a main element 1 having rail-carrying sections formed integrally with the rails 2, and with down-turned side portions 45. At the male and female ends of the element respectively are small steel reinforcing plate members 6, 6a having lugs 9, 9a, 10, 10a (not shown) for locating connecting pins 11, 12 and to form with the rail ends, holes to receive the pins 11, 12. A pivoted locking member 19 on the plate 6a has hook portion 21 which engages and clamps a lug 15 on the end of plate 6. Connecting pins 11, 12 may have a bridge portion 17 which may be held between edge 6b of plate 6 and an ear or hook member 18.
Patent GB-264186-A (GB)
Title: Process for indirect telephonic transmission
IPC: H04K1/06
Filed: 1927-01-10
Abstract: 264,186. Campos, G. Jan. 9,1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Telephone systems; diplex systems.-Messages to be transmitted by wire, wireless or wiredwireless telephony are first recorded on a device F of phonograph &c. type from which they are reproduced at any desired faster or slower speed to control a transmitting microphone M. At the receiving end, the signals actuating the receiver T are recorded on a second recording-device F<1> and are reproduced therefrom at the original speed. Transmission over a line L at a high speed ensures the use of the line for a minimum time and by the use of filter circuits high-speed and ordinary telephony can be carried on simultaneously. On the other hand, transmission at a low speed is useful for transmission over very long lines in which the distortion except for very low frequencies would be prohibitive. Messages transmitted at such high or low speeds are difficult to understand but additional secrecy can be obtained by reversing the direction of the record when reproducing from the device F and subsequently reversing the received message at the recording device F<1>.
Patent GB-739174-A (GB)
Title: Process for reducing the maximum amount of pressure applied in the extrusion moulding of misch metal-iron alloys
IPC: C06C15/00
Filed: 1953-01-12
Abstract: The ram force required for the extrusion moulding of bars of pyrophoric mischmetal-iron alloys with Fe contents of 4.5-25 per cent is reduced by the addition of 0.3-10 per cent, preferably 0.3-1 per cent, of one or more of the metals Ti, Al, Ba, Ca, Zr and Be. According to examples given in the Specification 0.5 per cent Mg and 1 per cent Sn may be added to the alloy to reduce the hardness and produce certain pyrophoric effects.  Specification 682,185 is referred to.
Patent GB-1123505-A (GB)
Title: Method for the production of microcrystals of chloramphenicol
IPC: A61K31/16
Filed: 1967-01-06
Abstract: Microcrystals of chloramphenicol are produced by mixing a solution of chloramphenicol in a water-miscible organic solvent with a solution of polyvinylpyrrolidone in water under vigorous agitation.  The water-miscible organic solvent is preferably an aliphatic alcohol or an aliphatic ketone and the polyvinylpyrrolidone suitably has a molecular weight within the range of from 10,000 to 750,000.  The agitation may be performed mechanically, but preferably by means of an ultrasonic generator with ultrasonic waves of 19 to 50 kc., preferably 25 to 35 kc. The polyvinylpyrrolidone solution advantageously contains a surface-active agent, such as benzethonium chloride or fatty acid esters of polyoxyethylene sorbitan or polyoxyethylene. The resulting microcrystals have a particle size distribution of about 0.5 to 5.0 m .
Patent HK-12295-A (HK)
Title: Process for the preparation of stabilized isosorbide-5-mononitrate tablets, being also of sustained release, and formulations thus obtained
Inventor: CALANCHI MASSIMO
IPC: A61K9/22
Filed: 1995-01-26
Abstract: The present invention relates to obtaining isosorbide-5-mononitrate tablets, being also of retard form, which are stable in time. Such embodiment is now possible after the discovery of the stabilizing activity of the polyvinylpyrrolidone with respect to the isosorbide-5-mononitrate with which it forms a solid solution. The use of PVP is essential so that the tablets can remain stable in time: the retard effect in turn can be obtained with the use of hydroxyalkylcelluloses.
Patent HK-62295-A (HK)
Title: Process for preparing oxazoline compounds
Inventor: SCHUMACHER DORIS P
IPC: C07D263/14
Filed: 1995-04-27
Abstract: A novel process for preparing oxazoline compounds is disclosed. The process utilizes an amino alcohol, a cyano compound, a base and a dihydric alcohol solvent, a polyhydric alcohol solvent or mixtures thereof.
Patent HK-71497-A (HK)
Title: N-aryl and N-cycloalkyl neoalkanamide insect repellents
Inventor: STELTENKAMP ROBERT JOHN
IPC: A61K8/00
Filed: 1997-05-29
Abstract: N-monosubstituted neoalkanamides of 11 to 14 carbon atoms wherein the substituent on the amide nitrogen is cyclic (aromatic or cycloaliphatic, such as aryl or cycloalkyl) and of at least five carbon atoms, have been discovered to be insect repellent, providing that any aromatic substituent is unsubstituted at the ortho position and that when the neoalkanoyl moiety is pivaloyl the total number of carbon atoms in the N-cyclic neoalkanamide is at least 12. Such neoalkanamides are useful as repellents against cockroaches, including American, German and Oriental cockroaches, and are also effective against mosquitoes (both Anopheles and Aedes), black flies and carpenter ants, and to some extent against deer ticks. They may be applied to areas, locations and items which are desirably to be kept free of such insects, with applications being direct or of solutions or emulsions thereof, preferably by spraying, or in detergent compositions or other products to be applied to such areas, etc. Because the described neoalkanamides are desirably substantive to surfaces and are usually in liquid state, they give long lasting repellency to such areas, etc., and tests have shown them to be sufficiently long lasting.
Patent HK-76089-A (HK)
Title: Nonvolatile latch
Inventor: BOHAC FRANK J JR
IPC: G11C11/412
Filed: 1989-09-21
Abstract: A bistable latch circuit is disclosed which can be electrically programmed to be stable in only one of its two states so that this same state is always set when power is applied to the circuit. The circuit can be electrically reprogrammed at will to select either of its stable states, and it draws no dc current during either the program mode or read mode. During the read mode, the potentials on the circuit nodes are such that long data retention times are achieved.
Patent HU-T68348-A (HU)
Title: Process for assessing the quality of an object or state
Inventor: BRANDES BERND
IPC: G01N27/00
Filed: 1991-09-17
Abstract: A method and apparatus is provided for monitoring a variable in a system. Actual values of the variables are sensed to produce sensed values. An initial threshold is set below an initially sensed value by a predetermined difference. Thereafter, the threshold is selectively maintained constant and adjusted to follow below the sensed values by a difference which is a function of the sensed values if the sensed values remain constant or increase, with the threshold remaining constant if the sensed values decreases. The threshold is compared with the sensed values and an indication of an unsatisfactory quality is provided if the sensed values fall below the threshold.
Patent HU-T60072-A (HU)
Title: Circuit arrangement for automatic gain control
Inventor: ZUCKER FRIEDHELM
IPC: G11B7/09
Filed: 1990-07-11
Abstract: An automatic gain control circuit includes an amplifier, the gain of which is to be controlled, and an input terminal for receiving an analog input signal. A first signal path is arranged between the input terminal and the amplifier and includes a controllable switch and a first filter. A second signal path is responsive to the input terminal and includes an analog-to-digital converter for providing digital signals representative of levels of the analog input signal. A signal processor receives the digital signals and provides control signals. A pulse width modulator receives the control signals and provides a pulse width modulated signal, the width of which varies in accordance with the digital signals, to the controllable switch.
Patent JP-H09191550-A (JP)
Title: Of cable straight connecting box
Inventor: HOSHI HISAAKI
IPC: H02G15/24
Filed: 1996-01-05
Abstract: PROBLEM TO BE SOLVED: To provide an OF cable straight connecting box which makes it possible to repair the cable with short working time at minimum cost without cutting cable conductors by incorporating a spare packing in advance just in the case of the occurrence of an oil leakage failure. SOLUTION: By providing a storing pocket 8 extending in a circumferential direction on a shell pipe 4 made oil-tight with a flange connection via a packing 6, a spare packing 7 is stored in the storing pocket 8. This makes it possible to replace the packing 7 with the packing 8 the instant oil leaked or a fear of the oil leakage arose during line operation. The storing pocket 8 is incorporated either by bending a part of the shell pipe 4 itself toward outside to utilize a space formed inside or by externally mounting a ring-shaped container on the circumference of the shell pipe 4 to utilize the inside space. In the latter case, it is effective to make up the ring-shaped container of the one split into two pieces.
Patent JP-H06199762-A (JP)
Title: Production of dibenzoylhydrazine derivative
Inventor: YANAI TOSHIAKI
IPC: C07C255/50
Filed: 1993-01-05
Abstract: PURPOSE:To readily obtain the subject compound by reacting a hydrazine derivative with a carboxylic acid derivative. CONSTITUTION:A compound of formula I (R<1> to R<5> are H, halogen, cyano, etc.; R<6> is 3-12C alkyl; X is cyano, SCCl3, etc.) and a carboxylic acid of formula II (R<15> to R<19> have the same meanings as those of R<1> to R<5>) or a reactive derivative thereof are subjected to condensing reaction in a solvent (e.g. THF) at -100 to +100 deg.C for 1-48hr to afford the objective compound of formula III. The compound of formula II is used in an amount of 1-10 equiv. based on the compound of formula I. N-(5-Methyl-1,4-benzodioxan-6-carbo)-N-cyano-N'-t- butylhydrazine is exemplified as the compound of formula I and 3,5- dimethylbenzoyl chloride is exemplified as the compound of formula II. Furthermore, N-(5-methyl-1,4-benzodioxan-6-carbo)-N-cyano-N'-t-butyl-N'-(3,5- dimethylbenzoyl)hydrazine is exemplified as the compound of formula III.
Patent JP-S62158364-A (JP)
Title: Manufacture of planar type thyristor
Inventor: MIWA JUNICHI
IPC: H01L29/74
Filed: 1986-01-07
Abstract: PURPOSE:To obtain a planar type thyristor easily through processes, from which a photoetching process and a diffusion process are omitted, by forming an anode-emitter junction through a substrate joining technique. CONSTITUTION:A surface, on which specular working is executed, in an N-type semiconductor substrate 20 is coated with a resist film 22a while the back side is coated with a resist film 22b having a predetermined shape, and boron is introduced, using the substrate 20 as a mask, thus shaping P-type isolation layers 23. The resist films 22a, 22b are removed and a resist film 22c is shaped on the back side, the ground surface 25 of a P-type semiconductor substrate 21 is thermocompression-bonded with a ground surface 24, and an anode-emitter layer 26 connected to the isolation layers 23 is formed through heat treatment. The resist film 22c is patterned in a predetermined manner, and boron is introduced, employing the film 22c as a mask to shape a base layer 28 having a reverse conduction type. Phosphorus is introduced into the base layer 28 to form an emitter layer 29 having the same conduction type as the N-type semiconductor substrate 20 while a channel stopper 31 is shaped.
Patent JP-S62160482-A (JP)
Inventor: HENDORIKU FUEENFURIITO
IPC: G09F9/37
Filed: 1987-01-06
Abstract: (57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。
Patent JP-H08190639-A (JP)
Title: Cloud phenomenon visualizing device
Inventor: MATSUDA NATSUKO
IPC: G06T13/60
Filed: 1995-01-05
Abstract: PURPOSE: To make a cloud phenomenon visualizing device adaptable to both time variation and a view point shift when a cloud phenomenon is visualized by computer graphics. CONSTITUTION: This device is equipped with a means 1 which determines the sizes of plural solid bodies for representing the outer shape of a desired cloud phenomenon and the initial state of their arrangement state, a means 2 which sets a specific function for changing at least one of the sizes and arrangement of the solid bodies and the position of a representative point of a solid complex of the solid bodies with time, a means which finds the sizes and arrangement of the solid bodies and the position of the representative point at each time, a means which finds display information on the solid bodies for displaying a cloud phenomenon viewed from a view point on the basis of the sizes and arrangement of the solid bodies, the position of the representative point, and the position of the view point at previously specified corresponding time,  and a means 13 which displays the cloud phenomenon on the basis of the found display information.
Patent JP-S62158792-A (JP)
Title: Production of highly concentrated coal-water slurry
Inventor: KAJI RYUICHI
IPC: C10L10/18
Filed: 1986-01-08
Abstract: PURPOSE:To produce the titled slurry at low cost without adversely affecting the properties of high concentration and low viscosity despite decreased dispersant usage, adding water, a dispersant, a radial polymerization reaction retarder, etc., to coal and grinding the coal. CONSTITUTION:Added to coal are water and a dispersant (e.g., anionic dispersant), and further at least one member selected from a radical polymerization retarder (e.g., hydroquinone), a radical polymerization inhibitor (e.g., naphthoquinone) and an antioxidant (e.g., 2,4,6-trimethylphenol). The coal is ground in the above-added materials to produce a highly concentrated coal-water slurry. According to this process, the usage of a dispersant can be decreased in the manufacture of a coal-water slurry having a high fluidity. That is, while the dispersant usage ranges from 0.5-1.0% in the past,the usage can be decreased to 0.1-0.2% according to the present process. Thus it is possible to produce a slurry as desired in an economical manner.
Patent JP-H05183102-A (JP)
Title: Semiconductor device and manufacture thereof
Inventor: FUJIMOTO HIROAKI
IPC: H01L25/18
Filed: 1992-01-07
Abstract: PURPOSE:To obtain a small-size, high-speed and low-cost multichip module by connecting a plurality of LSI chips with the opening of a flexible film in a state, where LSI chips overlap with each other that the surfaces of the LSI chips face mutually, and by connecting leads, which are connected with respective LSI chips, on the flexible film. CONSTITUTION:First, the bumps 20 of an LSI chip 19a having said bumps 20 and inner leads 14 are aligned with each other. Subsequently, the inner leads 14 are pressed and heated by a press tool 23 so that the inner leads 14 and the bumps 20 of the LSI chip 19a are bonded collectively. Then after an LSI chip 21b to be bonded subsequently is arranged on the surface on the side opposite to the side of the LSI chip 19a and the bumps 22 of the LSI chip 21b and inner leads 15 are aligned with each other, the inner leads 15 are pressed and heated one by one by a bonding tool 25 so that the inner leads 15 and bumps 22 are bonded together. After that, a flexible film 11 is cut in the part of outer leads 17 so that a multichip module is obtained.
Patent JP-S63170328-A (JP)
Title: Dehydroabietic acid derivative and antiulcer agent comprising said derivative as active ingredient
Inventor: MATSUO KOTARO
IPC: A61K31/495
Filed: 1987-01-06
Abstract: NEW MATERIAL:A compound shown by the formula (R1 is H, carboxymethyl, 1-substituted-4-piperazinylcarbonyl, 1-piperazinylcarbonylmethyl, 1-substituted-4- piperazinylethyl, etc.; R2 is H, methyl, carboxyl, mehoxycarbonyl, 1-substituted-4- piperazinylcarbonyl, etc.). EXAMPLE:12-Carboxymethyl-dehydroabietic acid methyl ester. USE:An antiulcer agent. A preventive and remedy for gastritis. PREPARATION:A dehydroabietic acid is reacted with acetyl chloride in the presence of Lewis acid to give a 12-acetyl derivative, which is subjected to oxidative rearrangement reaction with thallium secondary nitrate in methanol in the presence of an acid catalyst such as perchloric acid, etc., at normal temperature to give a 12-methoxycarboxylmethyl derivative, which is hydrolyzed with an alkali at room temperature to give a 12-carboxymethyl derivative.
Patent JP-S5285320-A (JP)
Title: Reversible driving device of single-phase motor block
Inventor: SATOU ISAO
IPC: H02P23/00
Filed: 1976-01-07
Abstract: PURPOSE: To simplify the control mechanism of the single-phase motor by adding the function of the directional switch on the centrifugal force switch. 
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