baber/WOPTO huggingface dataset:
Patent SE-326218-B (SE)
Inventor: UPDIKE A
IPC: H03K7/06
Filed: 1964-04-22
Abstract: 1,019,817. Pulse modulation circuits; transistor pulse oscillator circuits. AMPEX CORPORATION. March 24, 1964 [April 22, 1963], No. 12341/64. Headings H3T and H4L. In an oscillator for producing an output pulse train in which the pulse repetition frequency varies in accordance with the amplitude of an input signal, the input signal 70 is supplied to the base of a transistor Q2 and at time t 0  causes transistor Q3 to conduct and charge capacitor 54. At time t 1  the amplitude of the input signal rises to increase the charging current to the capacitor 54 and at time t 2  the input signal decreases and the charging current is reduced. The voltage across capacitor 54 is applied to an emitter of a cross-coupled  complementary pair Q4, Q5 and when this voltage is more positive than that at potentiometer tap 60 the transistors Q4, Q5 regeneratively become conductive to discharge capacitor 54 whereafter charging recommences. Thus between times t 0  and t 1  a high current will pass through transistor Q2 and a low current through Q3 so that capacitor 54 will charge at a slow rate and relatively few output pulses will be supplied to output 22, between times t 1  and t 2  the current through Q2 will be reduced and Q3 will pass a greater current and a greater number of pulses will be generated, and between times t 2  and t 3  the number of pulses will fall again.
Patent SE-328278-B (SE)
Inventor: KAUER J
IPC: C07C/
Filed: 1965-06-14
Abstract: Novel compounds of formula <FORM:1079592/C2/1> where R is H or C1-C6 alkyl, X and Y are each hydrogen, methyl or ethyl and R1 is -NR2R3 where R2 and R3 are each hydrogen, alkyl of 1 to 6 carbon atoms or allyl, and acid addition salts thereof, are prepared by reduction of the corresponding carboxamide or a bicyclo-[2,2,2]-octyl-(1) alkyl ketone oxime or by reaction of acetonitrile with an a ,a -dialkylbicyclo-(2,2,2)-octane-1-methanol, in each case optionally followed by alkylation of the amine group and/or salt formation.  4 - Alkylbicyclo - [2,2,2] - octane - 1 - carboxamides are prepared by reaction of ammonia or an appropriate amine with the corresponding acid chloride which is itself prepared from the carboxylic acid.  The above oximes are prepared in the usual manner from the bicyclo-[2,2,2]-octyl-(1)-alkyl ketone which is itself prepared from an organometallic compound and the 1-carboxylic acid chloride.  a ,a - Dimethylbicyclo - [2,2,2] - octane - 1-methanol is prepared by action of methylmagnesium bromide on the 1-carboxylic acid chloride. Penicillin salts of the above novel compounds are disclosed. Pharmaceutical compositions, feed concentrates and foodstuffs comprise an above novel compound and a carrier therefor.
Patent YU-43675-B (YU)
Title: Process for obtaining derivatives of (oxo-4-4h(1)benzopyrane-8-yl)alcanic acids
Inventor: BRIET P
IPC: C07D311/32
Filed: 1984-09-21
Abstract: The invention concerns [oxo-4-4H-[1]-benzopyran-8-yl]-alcanoic acids and their derivatives, their manufacture, represented by the formula. <IMAGE>   where AR is hydrogen, a phenyl radical which may or may not be substituted thenyl, furyl, naphthyl, a lower alkyl, cycloalkyl, aralkyl radical; B is a linear or branched lower alkyl radical, either saturated or ethylinically unsaturated; R1 is hydrogen or a phenyl radical; X is hydrogen or a lower alkyl or alkoxy radical and n=1, as well as salts, esters, aminoesters and amides. Compounds and their derivatives may be used as medicines, in particular in the control of tumors.
Patent ZA-793600-B (ZA)
Title: Process of directly reducing iron oxide-containing materials
Inventor: SCHNABEL W
IPC: C21B13/08
Filed: 1979-07-17
Abstract: When in the direct reduction of iron-oxide-containing materials in a rotary kiln solid, carbonaceous reducing agents having a high content of volatile constituents are charged to the rotary kiln at its charging end, a reoxidation of the sponge iron can readily occur in the final portion of the reduction zone unless a definite surplus of solid reducing agent is there maintained. To reduce the required surplus while still positively avoiding reoxidation, reducing gases and/or liquid hydrocarbons are introduced in said final portion by means of tubular air nozzles at least partially into the charge located above the air nozzles beginning with at least 75 percent metallization.
Patent ZA-811649-B (ZA)
Title: A method of producing soldered, multi-ply metal pipes and an apparatus for performing this method
Inventor: WEISS H
IPC: B23K1/002
Filed: 1981-03-12
Abstract: Tubing is made by continuously pulling steel strip at a predetermined feed speed from a supply, shaping the strip into a multilayer tube of a predetermined mass per unit length, and advancing the tube at the feed speed through a soldering station. The strip is coated with a solder-type material and an electric current is passed through the tube between a contact engaging the tube in the station and a contact engaging the tube downstream of the station to fuse the solder and tube together. The contact outside the soldering station is displaced so that the spacing between the contact is varied substantially proportionately with the product of the feed speed and the predetermined mass per unit of length of the tube. Downstream of the soldering station the tube and solder are cooled to bond the tube together.
Patent ZA-823755-B (ZA)
Title: Piston cylinder structure
Inventor: KAISER SIEGMUND H
IPC: F15B15/14
Filed: 1982-05-28
Abstract: 1. A pressure fluid cylinder comprising a longitudinally slotted cylinder tube (1) closed at its ends and enclosing a piston (5) provided therein in sealed relationship and for longitudinal displacement, which pistons carries a load transmission element (9) projecting outwardly through the longitudinal slot (3), the longitudinal slot (3) of the cylindrical tube (1) being sealed in the longitudinal direction of the cylinder by a sealing strip which is provided in the interior (2) of the cylinder tube, passes in the zone of the piston underneath the load transmission element (9) and is retained in contact, on both sides of the piston (5), with a sealing face (22, 25) of the cylinder tube wall, and being covered on the outside of the cylinder tube by a flexible cover strip (27) passing in the zone of the load transmission element (9) over or through the latter and being retained on the outer cylinder wall on both sides of the load transmission element (9), characterized in that the sealing strip (18) is held by the cover strip (27) in contact with the associated sealing face (22, 25) on both sides of the piston (5), through coacting releasable connection elements (26, 30) passing through the longitudinal slots (3) and extending over the length of the strip and that the connection elements (26, 30) are continuously released, in response to the longitudinal movement of the piston (5), in front of that end of the piston which faces the diminishing cylinder space (19 or 20) and engaged on the opposite side of the piston.
Patent ZA-825079-B (ZA)
Title: Substituted phenyl-cyclopropanecarboxylic acid esters,a process for their preparation,and their use as pest-combating agents
Inventor: FUCHS RAINER
IPC: C07C65/21
Filed: 1982-07-16
Abstract: Substituted phenyl-cyclopropanecarboxylic acid esters of the formula <IMAGE>   in which R1 represents an alkoxy or alkylthio radical which is monosubstituted or polysubstituted by identical or different halogen substituents, R2 represents a hydrogen or halogen atom, or R1 and R2 together represent an alkylenedioxy radical which is monosubstituted or polysubstituted by identical or different halogen substituents, R3 represents a hydrogen atom, a cyano group or an alkyl, alkenyl or alkinyl radicals which is optionally monosubstituted or polysubstituted by identical or different halogen substituents, Y represents a nitrogen atom or a methinyl radical, and R4 and R5 are identical or different and represent a hydrogen or halogen atom, which possess pesticidal properties, plus novel intermediates therefor.
Patent ZA-846313-B (ZA)
Title: Coating compositions
Inventor: NICKS PETER FRANCIS
IPC: C09D157/00
Filed: 1984-08-14
Abstract: Aqueous coating compositions comprise a polymer of defined molecular weight which contains either anionisiable or cationisable groups and also certain defined non-ionisable water-soluble moieties (derived for example from polyethylene glycol), water, optionally an organic coupling solvent and optionally either base or acid. The presence in the polymer of regularly distributed ionisable groups and non-ionisable water-soluble moieties enables the selection of aqueous polymer solutions for use in coating compositions which, on dilution, show a regular relationship between viscosity and solids content. The polymer solutions are particularly useful in the formation of paints.
Patent ZA-885369-B (ZA)
Title: Piperidine derivatives,their preparation and their application in therapy
Inventor: MANOURY PHILIPPE
IPC: C07D401/12
Filed: 1988-07-22
Abstract: A compound which is a piperidine derivative of formula (I)    <IMAGE> (I)  in which: n is 1, 2, 3 or 4, R is hydrogen or a halogen, R', which is identical to R, is hydrogen or a halogen, either R1 is H or OH and R2 is H, or R1 and R2 together denote a bond, R3 is hydrogen or (C1-4) alkyl, and R4 is H or OH, including tautomeric forms thereof, or a pharmaceutically acceptable acid addition salt thereof.
Patent ZA-886039-B (ZA)
Title: Rotary sliding gate valve for a metallurgical vessel and a rotor and/or stator for such a rotary valve
Inventor: LUEHRSEN ERNST
IPC: B22D41/28
Filed: 1988-08-15
Abstract: The invention relates to a rotary sliding gate for tapping liquid molten metal out of a metallurgical vessel, with a rotationally symmetrical rotor which serves as gate element, is, for example, refractory, is arranged in a manner which allows rotation about an axis of rotation in a stator (6), for example a refractory stator, having an outflow channel, and has at least one flow channel which can be opened by rotating the rotor relative to the stator to connect the inlet opening of the outflow channel of the stator to the outlet opening of the outflow channel of the stator and can be closed again by interrupting this connection. To improve and increase the possible functions of such a rotary sliding gate, the stator has an aperture with a circular-cylindrical inner surface which serves as a sealing seat, into which the rotor is fitted in sealing fashion with a circular-cylindrical circumferential surface and within which the rotor can be both rotated and axially displaced. In the inner surface of the aperture there is at least one inlet opening and/or at least one outlet opening of a flow channel. 
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Patent ZA-909521-B (ZA)
Title: Processes to recover and reconcentrate gold from its ores
Inventor: KLEID DENNIS GORDON
IPC: C22B11/08
Filed: 1990-11-27
Abstract: Processes for recovering gold from gold ore are disclosed, comprising the steps of:   a. culturing at least one microorganism species capable of degrading cyanide ion under conditions wherein said species degrades cyanide ion, thus forming a cyanide ion degrading culture; b. contacting said cyanide ion degrading culture with an aqueous suspension of cyanide ion treated carbonaceous gold ore, said suspension containing gold ion-cyanide ion complexes, thereby causing bioabsorption of said complexes from said suspension to said culture;   c. recovering gold from said culture. ld
Patent ZA-922476-B (ZA)
Title: Multifunctional water-dispersible crossliking agents
Inventor: HESSELMANS LAURENTIUS CORNELIS
IPC: C08G18/28
Filed: 1992-04-03
Abstract: The invention describes a new type of multi-functional water-dispersible crosslinking agents. These crosslinking agents are products consisting of oligomeric and compounds containing carbodiimide functions and other reactive functional groups. Further the invention describes aqueous dispersions, emulsions or solutions with such crosslinking agents. Finally the invention comprises a process for the preparation of the crosslinking agent according to the invention.
Patent ZA-935427-B (ZA)
Title: Vacuum sweeper drive belt
Inventor: LACKNER JOHN R
IPC: F16G1/28
Filed: 1993-07-28
Abstract: An endless elastomeric vacuum sweeper belt (28) for use in a vacuum sweeper (10) having a diamond pattern drive surface. A first set of ribs (38) project inwardly in a substantially diagonal direction along the drive surface of the belt. A second set of ribs (40) project inwardly along the drive surface (30) of the belt in a substantially diagonal direction opposite the direction of the first set of ribs. The first and set second set of ribs together define a diamond-like pattern on the drive surface as well as a number of particle recesses (42) for the temporary collection of matter. Each rib includes knife-like edge portions (44) to increase the traction of the belt on a drive surface by cutting, loosening and expelling foreign matter lodged between the belt drive surface and the rotation member and/or the drive source of the vacuum sweeper.
Patent ZA-974577-B (ZA)
Title: Processing of soluble tea solids
Inventor: NOBLE IAN
IPC: A23F3/16
Filed: 1997-05-26
Abstract: This invention concerns a method of altering the colour characteristics of a tea composition, including treating a tea infusion that contains cold water soluble tea solids but is substantially free of cold water insoluble tea solids, with an oxidising agent in a reaction vessel at a temperature and pressure in excess of the ambient temperature and pressure.
Patent GB-2383072-B (GB)
Title: Doorposts and doorframes
Inventor: ECCLESHALL DAVID JOHN
IPC: E06B1/52
Filed: 2001-12-14
Granted: 2005-01-12
Abstract: A door assembly includes a door post 5 which is rotatable about a longitudinal axis 7 and is formed with a recess shaped to receive the side edge of a door 3. The door assembly may include a frame comprising a head rail between the door supporting door post 5 and a slam door post 4 and a means of enabling rotation of each door post relative to the head rail about a longitudinal axis. The means of rotation may be supporting the ends of the door posts within bearing races, or the end of each door post may carry a spindle which seats within a suitably shaped cap secured to the head rail. The door posts may be circular in cross-section and the depth of the recesses on the doorposts may be less than the circumference of the door posts. Preferably the shape of the recess complements the shape of the door edge, the recess may be "V" shaped.
Patent GB-2372454-B (GB)
Title: Medical respiratory apparatus
Inventor: PAYNE SIMON ROBERT
IPC: A61M11/00
Filed: 2002-01-04
Granted: 2004-06-30
Abstract: A medical respiratory apparatus includes a chamber (10) which is at least in part at least translucent. The chamber (10) includes a float member (12) formed of an inert material and contains, in use, a fluid intended for inhalation. The float member (12) is adapted to float upon the fluid intended to be contained within the chamber (10) and has a peripheral dimension adjacent, but less than, the internal peripheral dimension of the chamber (10). At least the outer peripheral surface of the float member (12) has a coloration distinct from that of the fluid to be contained within the chamber such that the level of the fluid within the chamber (10) can be readily observed.
Patent GB-2381305-B (GB)
Title: A new light source for part-adapted diagnostic instruments
Inventor: WILLIAMS WILLIAM J
IPC: A61B3/12
Filed: 2001-06-29
Granted: 2003-08-13
Abstract: A new light source (e.g. LEDs) enables new designs in all or some key elements within diagnostic instruments. New light sources allow improvements in life of light source, infra red emitted, power consumption, color temperature, light flux directionality, simplification of optics design, adaptation of light flux directionality, and overall constructional simplification. The new light source allows for the replacement of some or all of the components designed for incandescent filament bulbs. The improved light source may allow for either an entirely new design of all or some core modules of the instrument, or by alteration of pre-existing modules.
Patent GB-2392329-B (GB)
Title: Manufacturing film bulk acoustic resonator filters
Inventor: WANG LI-PENG
IPC: H03H9/56
Filed: 2003-08-06
Granted: 2005-03-16
Abstract: A film bulk acoustic resonator filter (10) may be formed with a plurality of interconnected series and shunt film bulk acoustic resonators (38) formed on the same membrane (35). Each of the film bulk acoustic resonators (38) may be formed from a common lower conductive layer which is defined to form the bottom electrode (32) of each film bulk acoustic resonator (38). A common top conductive layer may be defined to form each top electrode (36) of each film bulk acoustic resonator (38). A common piezoelectric film layer (34), that may or may not be patterned, forms a continuous or discontinuous film. <IMAGE>
Patent GB-2426509-B (GB)
Title: Resealable closures
Inventor: MCGEOUGH PETER MICHAEL
IPC: B65D55/06
Filed: 2004-07-27
Granted: 2007-06-13
Abstract: A closure comprising a solid color spout and a transparent overcap is adapted to be sealed to a container neck by means of a double-sided foil. The overcap has a depending valve, which engages with the spout to hold these components together prior to assembly to the container. The spout has a flange adapted to seat on a rim of the container neck and an annular wall that is received within the container neck. The foil is welded to the flange and is also used to weld the closure to a rim of a container neck of standard threaded design. The overcap can screw to an external thread on the container neck. The primary ex-factory seal is provided by welding the assembled closure to the neck. The secondary seal is provided by the engagement of the overcap valve with the spout. The invention discloses an improved method of assembly.
Patent GB-2446982-B (GB)
Title: Ear-worn speaker-carrying devices
Inventor: SIBBALD ALASTAIR
IPC: H04R1/10
Filed: 2007-02-16
Granted: 2009-04-29
Abstract: An ear-worn speaker carrying device ("ESD") incorporating active ambient noise reduction circuitry provided with a seal intended to contact or surround the ear of a user. The seal is intended to present a substantial impedance to inward or outward transmission of sound to or from the ear. At least one acoustic channel of predetermined dimensions bypasses the seal, providing an acoustic leakage path of known characteristics, thereby permitting predetermined levels of sound to enter and exit by way of the channel, such that minor variations in leakage are rendered relatively unimportant. In a preferred embodiment, the device further includes an acoustic conduit connected to vent the speaker's rear surface to the external ambient, and respective exit apertures for the acoustic channel and the acoustic conduit are relatively located so that sounds exiting from them tend to cancel each other, reducing sound emissions from the device.
Patent GB-2460716-B (GB)
Title: Hiding information on a document for use in validation
Inventor: CROWTHER JAMES
IPC: B41M3/14
Filed: 2008-06-10
Granted: 2012-10-10
Abstract: A method and apparatus for validating printed matter, particularly cheques or documents, is disclosed. This is achieved by comparing a visible sequence of digits, marks or a code 106 printed on a substrate 100 with a hidden sequence of digits, marks or a code 102 also printed on the substrate 100 which becomes visible when the substrate 100 is viewed with non-visible radiation, such as infrared light. The hidden sequence of digits 102 may be formed by printing the digits, marks or code as a visible first printed portion that absorbs both visible and invisible radiation then printing a second printed portion 104 visible digits, marks or code over the hidden code 102 at least partially obscuring it. The second printed portion 104 should absorb visible radiation but should not absorb non-visible radiation. When exposed to non-visible radiation, the hidden digits, marks or code 102 can be discerned and compared to the visible digits, marks or code 106 to validate the printed matter. The colour of the inks used to print the hidden sequence 102 and the cover layer 104 is preferably the same. In another embodiment the visible digits, marks or code 106 could also be invisible, perhaps being discernable under ultraviolet radiation. The printed matter may be a document or a cheque.
Patent GB-2004954-B (GB)
Title: Roller bearings for sprung axles of railway rolling stock
IPC: F16C19/38
Filed: 1978-09-01
Granted: 1982-03-03
Abstract: A wheel set roller bearing for sprung axles of railway rolling stock comprises a sealed, self-retained constructional unit having seals (5) embodied therein and located in respective grooves in an outer race (1). <IMAGE>
Patent GB-2132105-B (GB)
Title: Filter press and its operation
Inventor: PEARCE KENNETH WALTER
IPC: B01D35/20
Filed: 1983-12-06
Granted: 1987-04-29
Abstract: Filter cake formed from a slurry is dried in a filter press comprising a plurality of filtration units (1) each having a chamber (6) bounded by a pair of opposed flexible walls each comprising a filter medium (5) and an outwardly located flexible membrane (8). The filter cake is formed and/or compressed in the chambers (6) by hydraulic fluid pressure acting on the flexible membranes (8). By means of pressure oscillations set up in the hydraulic fluid the filter cake in the chambers (6) is deformed by bowing to either side of an initial central plane alternately whereby drying is improved.
Patent GB-2159997-B (GB)
Title: Speech recognition
Inventor: MOSHIER STEPHEN LLOYD
IPC: G10L15/10
Filed: 1982-09-21
Granted: 1986-05-29
Abstract: A speech recognition method and apparatus for recognizing word strings in a continuous audio signal are disclosed. The word strings are made up of a plurality of elements, and each element, generally a word, is represented by an element template defined by a plurality of target patterns. Each target pattern is represented by a plurality of statistics describing the expected behavior of a group of spectra selected from plural short-term spectra generated by processing of the incoming audio. Each target pattern has associated therewith at least one required dwell time position and at least one optional dwell time position. The number of required dwell time positions and the sum of the required and optional dwell time positions define, in effect, the limits of a time interval during which a given target pattern can be said to match an incoming sequence of frame patterns. The incoming audio spectra are processed to enhance the separation between the spectral pattern classes during later analysis. The processed audio spectra are grouped into multi-frame spectral patterns and are compared, using likelihood statistics, with the target patterns of the element templates. Each multi-frame pattern input, which inputs occur at a frame rate which requires each keyword target pattern to correspond to at least two of the multi-frame patterns, is forced to contribute to each of a plurality of pattern scores as represented by the element templates. The contributions of said multi-frame pattern inputs to said pattern scores is controlled, in part, by said required and optional dwell time constraints. A concatenation technique is employed, using dynamic programming techniques, to determine the correct identity of the word string.
Patent GB-2173866-B (GB)
Title: Improvements in and relating to bearings
Inventor: DICKINSON THORN W
IPC: F16C33/78
Filed: 1986-01-31
Granted: 1989-04-19
Abstract: An antifriction bearing having inner and outer race rings and a seal ring featuring a multiplicity of resilient seal ring retaining projections for compressive wedging engagement within a retaining groove of the outer bearing ring.