baber/WOPTO huggingface dataset:
Patent GB-2074481-A (GB)
Title: Blasting lance
IPC: B24C5/00
Filed: 1981-04-22
Abstract: A lance for surface-preparation shot-blasting in confined spaces, e.g. in an excavation around a service duct, has a rigid stem (1) to which is articulated a blast nozzle (6). The attitude of the nozzle relative to the stem is governed by displacement of a flexible conduit (7) by which blasting material is brought to the nozzle. The conduit (7) may be attached to a slidable handle (2) for this purpose. <IMAGE>
Patent GB-2113927-A (GB)
Title: Polyphase rectifiers
Inventor: BENNELL FRANK TASMAN
IPC: H02M7/10
Filed: 1982-01-18
Abstract: A rectifier equipment for conversion from 3-phase a.c. to d.c. having a transformer (4) with two secondary windings, one connected star (1) and the other delta (2), for phase-displaced supplies to two rectifier bridges (5) and (6) to give 12- pulse rectification. To obtain equal currents in the diode or thyristor rectifier bridges the two secondary windings are linked by a compensating transformer (10) which may be a 3-phase transformer or comprise three single phase transformer units. The two secondary windings on each limb of the rectifier transformer (4) are connected in series with two windings on one limb or unit of the compensating transformer where these windings are connected in opposition and act mutually as primary and secondary to one another thus having equal ampere turns, the turns ratio being root three to one for the delta and star winding circuits respectively. The compensating transformer serves also to absorb the instantaneous voltage differences between the two rectifier bridge circuits. <IMAGE>
Patent GB-2093713-A (GB)
Title: Extractor apparatus for deoiling of aqueous solutions of synthetic detergents
IPC: B01D3/16
Filed: 1982-02-16
Abstract: An extractor or stripper is disclosed. The stripping column 61 comprises separators 75 dividing the column 61 into a series of interconnected chambers, a feed inlet 93, a product outlet 95 for removing the stripped product, an inlet 89 for admitting steam or other stripping gas, and an outlet 91 for withdrawing stripping gas/vapour and material stripped from the feed. Each of the chambers includes an outlet 87 adjacent its bottom for removal from the chamber of the liquid to be rectified, an inlet 83 above 87 for admitting into the chamber of liquid-vapour mixture, an outlet 85 above 83 for removing vapours, first connecting passageway 77 extending between the outlet 85 of a lower of adjacent chambers and the inlet 83 of the higher chamber, and second passageway 79 extending between the outlet 87 of the chamber above the said higher chamber and an inlet 81 to the first passageway 77. <IMAGE>
Patent GB-2095289-A (GB)
Title: Magnetic metallic glass alloy
IPC: H01F1/153
Filed: 1982-03-24
Abstract: An alloy of composition (by mole) around Fe80B15Si5 with additions of up to 4 mole % Ag or Cu or up to 2 mol % Zn or mixtures thereof when rapidly cooled solidifies to a non-crystalline glass structure, which is ductile and magnetically 'soft', i.e. offering a reasonable saturation magnetisation yet with low losses. Exemplary glassy alloy:  Fe79.5B15Si5Cu0 &cirf& 5 The range of compositions, in mole percent, lies within   <IMAGE> and any one of Ag, Cu, Zn such that Ag+Cu+2Zn NOTGREATER 4.i
Patent GB-2099190-A (GB)
Title: Air-to-fuel mixture control for an internal combustion engine
IPC: F02D41/14
Filed: 1982-04-28
Abstract: A system for controlling the air/fuel ratio for an internal combustion engine utilises a variable choke carburetter coupled by a regulator to a carbon monoxide sensor in the engine exhaust. The regulator serves to modify the depression applied to the metering jet of the carburettor to optimise the ratio at engine idling condition and thereafter to maintain the same modification throughout the carburetter working range in response to engine operation. The carbon monoxide present in the exhaust can be used for control only at rich mixtures. By setting a suitably rich mixture at idling, and maintaining this setting, the mixture becomes desirably weak over its normal running range, as shown by curve 31. <IMAGE>
Patent GB-2102629-A (GB)
Title: Antenna matching device
Inventor: HODGKINSON ALEC JOHN
IPC: H03H7/38
Filed: 1982-05-27
Abstract: An antenna matching device has a ferromagnetic core (5) with a balanced shape and composition to each side of a centre tap position (6). Each side of the core has a first and second parallel wound coil (7, 8), the free end leads (10) of the first coil (7) being connected together (11) and the centre-tap leads (9) of each first coil being connected to that of the corresponding second coil on the opposite side of the core, the free end leads of each second coil (8) being connected to its own antenna terminal (17). <IMAGE>
Patent GB-2101394-A (GB)
Title: Safety means or electrochemical cells
Inventor: BABAI MATZLIACH
IPC: H01M6/50
Filed: 1982-06-03
Abstract: There are provided safety means for high energy density electrochemical cells, comprising in combination mechanical venting means and a liquid or gaseous additive compatible with the cell constituents which additive undergoes a steep pressure increase when the cell temperature is increased, and high energy density electrochemical cells of the type comprising a helically wound electrode of the alkali metal or alkaline earth metal type, with a carbon or inert metal current collector, a non-aqueous electrolyte of the inorganic oxyhalide or thiohalide solvent, with a solute dissolved therein, provided with venting means and an additive as defined above.
Patent GB-2101950-A (GB)
Title: Vibratory distribution system
Inventor: MADDOCKS KEITH LEVER
IPC: B65G27/34
Filed: 1982-06-21
Abstract: A vibratory distribution system for flowable material such as bulk food products has a number of vibratable cascaded elongate primary conveyor channel sections 32, 34, 36 tilted to one side about their longitudinal axes to cause the product to gravitate towards the lower side wall 50, 51, 53 of each section. Each side wall 50, 51, 53 has an opening through which product falls into a respective secondary conveyor section 54, 57, 59 which carries the product to an associated packaging machine 14. The flow rate of product can be precisely controlled by selective activation of the conveyor sections, and by varying the vibration amplitude of the secondary conveyor sections. <IMAGE>
Patent GB-2104750-A (GB)
Title: Microwave single-balanced mixer
Inventor: BATES ROBERT NEIL
IPC: H03D7/18
Filed: 1982-07-09
Abstract: A planar microwave single- balanced mixer includes a series-T junction (3) comprising a slot line (41) formed in a ground plane on one major surface of a dielectric substrate (11) and a strip conductor (51) on the other major surface crossing the slot a quarter-wavelength from a short- circuit at one end (60) thereof. A pair of further strip conductors (141, 151) are connected at one end to the strip conductor (51) on opposite sides of the slot and extend closely adjacent to one another so as to be coupled together. Two diodes (33, 34) are connected in opposite senses between the other ends of the pair of strip conductors (141, 151) and a common R.F. input terminal (25). A local oscillator signal supplied along the slot line (41), e.g. from a microstrip line (71), is coupled to the diodes (33, 34) along the pair of conductors (141, 151) in the odd mode, and an intermediate frequency signal is derived between the strip conductor (51) to which the I.F. signal propagates along the pair of conductors (141, 151) in the even mode, and the diodes (33, 34) via a low-pass filter (35-38) and a short- circuited stub (27) a quarter- wavelength long at the signal frequency. The circuit provides inherent isolation between the R.F. and L.O. ports, and simplifies filtering to reject undesired mixer products, e.g. at the image frequency. <IMAGE>
Patent GB-2105811-A (GB)
Title: Control system for eddy current coupling drives for an armoured face conveyor
Inventor: GRAHAM ROBERT STEVEN
IPC: H02P29/00
Filed: 1982-08-31
Abstract: The system controls a number of eddy current coupling drives via a pair of power supply lines 12 and a single pilot line 20. A main contactor is held closed by contact of a pilot relay which is energised only if relay contacts 13 in individual control units for each drive remain closed. The excitation applied to the field coil 21 of each coupling is automatically increased from initially zero to a preset maximum, but this increase is inhibited if the input speed 25 of the coupling falls to a predetermined level 26. The relay contacts 13 are opened after a preset time unless the output speed 29 of the coupling indicates that the conveyor driven by the coupling drives is beginning to accelerate, thus interrupting the line 20 and interrupting supply to all of the couplings. <IMAGE>
Patent GB-2106909-A (GB)
Title: Benzoquinolizines
Inventor: ARCHIBALD JOHN LEHEUP
IPC: C07D455/06
Filed: 1982-09-30
Abstract: The invention concerns N-methyl- N-(1,3,4,6,7,11 b alpha -hexahydro- 2H-benzo[alquinolizin-2 beta -yl)-iso-butanesulphonamide and the pharmaceutically acceptable acid addition salts thereof. The compounds possess high  alpha 2-adrenoceptor antagonistic activity with a good  alpha 2/ alpha 1 adrenoceptor antagonistic selectivity.
Patent GB-2129664-A (GB)
Title: Plant protection devices
Inventor: GARRETT KENNETH JOHN
IPC: A01G13/02
Filed: 1982-11-11
Abstract: A plant protection device comprising a sheet 10 of flexible transparent plastics material provided with a plurality of pairs of holes 13, 14 adjacent opposite edges. The sheet is wrapped round to form a sleeve which is temporarily retained in the right position by rings 19, 20 and 21 and thereafter tubes 22 to 25 are inserted through the apertures and under the bridges 17 formed between pairs. Thereafter a rod passed through the tubes, having been stuck in the ground and the tubes can then be moved away from under the bridges so that the rod retains the assembly in place. <IMAGE>
Patent GB-2115962-A (GB)
Title: Decimal arithmetic system
Inventor: FUKUTA MASAHARU
IPC: G06F7/508
Filed: 1983-01-28
Abstract: A decimal arithmetic system comprises an end-around carry type adder (4) for performing arithmetic addition or subtraction of two numbers in binary coded decimal representation after a first correction for the decimal arithmetic operation to output the result of the arithmetic operation (4a) and a one's complement (4b) thereof, a first discriminator circuit (6) for determining whether to select the complement of the result of the arithmetic operation as the adder output, and a second discriminator circuit (5) for determining the presence or absence of carry signals to next higher-order digits for each of digits. When the complement of the result of the arithmetic operation is selected as the adder output, a second correction for the decimal arithmetic operation is effected for those of the digits for which respective carry signals were present at the time of the arithmetic operation. When the complement of the result of the arithmetic operation is not selected as the adder output, the second correction is effected for those of the digits for which the respective carry signals were absent at the time of the arithmetic operation. <IMAGE>
Patent GB-2135653-A (GB)
Title: Computer tape reel
Inventor: LYMAN GEORGE F
IPC: G11B23/037
Filed: 1983-03-03
Abstract: A computer tape reel composed of separately fabricated front and rear reel flanges (22 and 24) and a hub (20). Radially arranged ribs and radially extending slots are provided on the flanges and hub which register with one another when the parts are assembled to establish concentricity. Welding heads are provided on the radially extending side surfaces of some of the ribs for shear welding the flanges and hub together. The hub consists of an inner mounting ring 26 and an outer winding ring 28 joined by a web 30, the rear surface of web 30 having a flange 50. Spaced radial ribs 36 extend on the front surface of web 30 between the rings and these ribs have a thickness not exceeding 60% of the outer ring thickness to prevent sink-marks occurring and to support the outer ring against high compression. Additional pairs of ribs 56 and further knock-out ribs 70 extend radially between the flange 50 and the rings. Radial ribs on the flanges fit between the ribs 36 and 56 on the hub. As many as 72 ribs may be provided, spaced at 5 DEG  apart. The flat surfaces 38, 40, 126 of the flanges which contact the ends 54 of the hub are free of welding beads. The hub may be moulded of glass filled styrene and the flanges of styrene. <IMAGE>
Patent GB-2116465-A (GB)
Title: Device for grinding flat or spherical surfaces
Inventor: WIECK KARL
IPC: B24B47/20
Filed: 1983-03-17
Abstract: A device for grinding flat or spherical surfaces comprising a grinding head (24) and a grinding head holder (12) displaceable relative to each other and mounted on common guideway (14). A grinding spindle (30) is rotatably mounted in the grinding head (24), which has shims (36) and at least one piston rod (80), which is slidable in the grinding head holder (12). The relative movement between the grinding head (24) with the grinding wheel (22) and the grinding head holder (12) is monitored by a sensor (76). When a definable relative movement occurs, clamping devices (40) are actuated, with which shims (36) of the grinding head (24) are clamped, whereby the grinding head (24) and the grinding head holder (12) are braced with each other. Therewith a driving motor (48) is uncoupled from an infeed spindle (52) for the grinding head holder (12) and this is coupled to a device for gradual infeed. The piston rod (80) attached to the grinding head projects into a cylinder (90) of the grinding head holder (12) and carries a piston (86) which is displaceable therein. The piston (86) is acted upon by a pressure medium supplied to the cylinder, which exerts a force on it, which acts in the opposite direction to and at least partly compensates the weight of the grinding head and the grinding wheel together with the tool holder. <IMAGE>
Patent GB-2122601-A (GB)
Title: Tetrahydronaphthacene derivatives
Inventor: BROADHURST MICHAEL JOHN
IPC: C07D317/26
Filed: 1983-05-05
Abstract: Compounds of the formula   <IMAGE>  in which R is lower alkyl, esterified carboxy, a group   <IMAGE> where R<2> and R<3> together are oxo or protected oxo and X is hydrogen, hydroxy or acyloxy, or a group (CH2)n-OY, where n is 1 or 2 and Y is hydrogen, alkyl or acyl; Ar is aryl; and R<4> is acyl, are useful as intermediates for the manufacture of tetracyclic compounds having antibiotic or antitumour activity.
Patent GB-2125629-A (GB)
Title: Electrical switch mounting arrangement
Inventor: RUPP GERHARD
IPC: H02B1/048
Filed: 1983-06-14
Abstract: A switch housing comprises a bearing surface 8 adapted to abut a surface of a support and a resilient member 6 adapted to flex and to abut another surface of the support thereby firmly to retain the switch in the support. <IMAGE>
Patent GB-2126062-A (GB)
Title: Drill
Inventor: WIEMEYER BENNO
IPC: A01C5/06
Filed: 1983-07-13
Abstract: A drill including a frame and sowing coulters disposed on the frame in a vertically pivotable manner, such sowing coulters being individually connected to the frame by resilient members which act upon the sowing coulters in the direction of the soil, the tension of such resilient members being adjustable by a central adjusting means in order to achieve a uniform depth for the sowing coulters. To control the depth of the sowing coulters of drills in an automatic manner in dependence upon the soil conditions, so that a uniform depth is ensured for the sowing coulters, a measuring arrangement (25) is disposed on the drill to measure the depth (T) of the sowing coulters (9), and such measuring apparatus (25) is connected to the central adjusting means (17). <IMAGE>
Patent GB-2145929-A (GB)
Title: Garment hanger
Inventor: TENDRUP DONALD
IPC: A47G25/48
Filed: 1983-08-31
Abstract: A plastics ship-on hanger has a plurality of garment grips in each of which a cooperating finger (16) and wall (18), engage an interposed garment therebetween, and the finger is movable into a clearance (32) formed between the finger and a support leg (30) to which the finger is connected. This arrangement reduces stresses in the plastic at the junction of the garment grip to the main body of the hanger. The finger (16) additionally has a gripping projection in the form of a bump (36), which significantly increases the gripping pressure on the garment. <IMAGE>
Patent GB-2146898-A (GB)
Title: Artificial fingernail
Inventor: AYLOTT ERIC VICTOR
IPC: A45D31/00
Filed: 1983-09-19
Abstract: An artificial fingernail for attachment to a natural nail has an arched body to accommodate the curvature of a natural fingernail, a tip end and a curved cuticle end. The artificial fingernail is secured to the natural nail by a securing tab comprising a layer of adhesive and supporting layer which may be peeled away once the adhesive is in position. Preferably a plurality of appropriately dimensioned securing tabs are provided on a single backing sheet. The underside of the fingernail body 2 at or adjacent the tip end may be provided with a rearwardly tapering security clip 22 adapted to engage under a wearer's natural fingernail in order to prevent lifting. <IMAGE>
Patent GB-2147959-A (GB)
Title: Gear lock-out devices
Inventor: SORG JOHANNES
IPC: B60W50/08
Filed: 1983-10-14
Abstract: A vehicle transmission (not shown) is provided with a device for preventing the engagement of a gear (such as reverse) at a too high speed. A speed selector 1 compares a speed analogue signal F from a transmitter 3 with a threshold value. if the speed is above a predetermined level, the selector 1 generates a first input signal V and feeds it to a logic selector 2. A state-of-the-transmission indicator 4 generates a second input signal S to the selector 2 when a gear-shift lever is actuated. The selector 2 allows an output signal A to actuate a warning device 5 or a lock-out device to prevent the shift if the first signal V is present prior to the second signal S. <IMAGE>
Patent GB-2132223-A (GB)
Title: The extraction of coal liquefaction bottoms
Inventor: TAO FRANK FU-KUM
IPC: C10G1/00
Filed: 1983-11-16
Abstract: Liquid yields from the liquefaction of coal and similar carbonaceous solids 10 are increased by extracting the heavy bottoms product 42 from the liquefaction zone 16 with a liquefied gas 53, selected from the group consisting of liquid sulfur dioxide, liquid carbon dioxide, and liquid ammonia at a temperature and pressure below the critical temperature and pressure of the liquefied gas. The high molecular weight reactive organic material 55 extracted from the heavy bottoms is converted into low molecular weight constitutents generally by either recycling to the liquefaction zone or by passing the material to a downstream conversion step. <IMAGE>
Patent GB-2150823-A (GB)
Title: Transportable cot
Inventor: CUSHING KENNETH ANTHONY
IPC: A47D13/06
Filed: 1983-11-26
Abstract: A transportable cot comprises a plurality of rigid side frame members detachably fixed to one another and is characterised by the presence of straps for attaching the assembled side frame members to a suitable base surface, for example the seat of a sofa or the mattress of a bed, and by the absence of any such base surface from the cot itself. In a preferred embodiment the cot is substantially rectangular in plan view, each of the longer sides is composed of two members which have half-lapped mating end surfaces located by pin-and-hole connections, the cot sides are dowelled in conventional manner, and the straps are fixed to the top rails of respective opposite side frame members and are long enough to span the underside of a full sized bed. <IMAGE>
Patent GB-2135243-A (GB)
Title: Apparatus for the protection of documents, especially betting slips, against falsifications
Inventor: EINLEHNER HANS
IPC: B44F1/12
Filed: 1984-02-15
Abstract: In such an apparatus a time and date printing device (2) followed by at least one roller coating device (3, 4) for coating one side of the document (S) to be protected with a transparent, rapid hardening or rapid drying liquid, as well as a plurality of motor-driven feed rollers (5-8), are arranged one behind another in a common lockable housing (1). The feed rollers (5-8) feed the document (S) to be protected automatically from an inlet opening (9), past the time and date printing device (2) to the roller coating device (3, 4) and then further to the outlet opening (10) of the housing (1). The coating does not accept further markings. <IMAGE>
Patent GB-2137974-A (GB)
Title: Carbon Foam Reservoir for Silicon
Inventor: KENNEDY PETER
IPC: C04B35/573
Filed: 1984-04-06
Abstract: A reaction-bonded silicon carbide body is produced by siliconising a green body formed from a coherent mixture of silicon carbide and carbon powders. A source or reservoir of silicon is provided by a body formed by siliconising a porous carbon artefact obtainable by carbonising confined organic material to produce a free- standing continuous carbon matrix.
Patent GB-2157534-A (GB)
Title: Decomposable seed pot
Inventor: PAPE JAMES ERNEST
IPC: A01G9/10
Filed: 1984-04-18
Abstract: A cylindrical decomposable seed pot is made of a decomposable material 6 with open top and sealed bottom. A plant growing medium 7 is retained therein but leaving a clear space around the top thus forming a circular wall protruding above the medium 11 to help protect a young seedling. A number of such pots are located in packaging and are kept therein while the seeds are sown and germinate. <IMAGE>
Patent GB-2164951-A (GB)
Title: Method and apparatus for producing synthesis gas
Inventor: VAN KESSEL MATHEUS MARIA
IPC: C10J3/00
Filed: 1984-09-26
Abstract: In producing synthesis gas, at least two different fuels from the group comprising particulate solid fuel, such as coal, liquid fuel, such as residual oil, and gaseous fuel, such as natural gas, are introduced into a reactor vessel through at least two burners (22, 23, 24) which are separated from each other. <IMAGE>
Patent GB-2162862-A (GB)
Title: Process for forming monocrystalline thin film of compound semiconductor
Inventor: NISHIZAWA JUNICHI
IPC: H01L21/20
Filed: 1985-07-25
Abstract: A cycle of alternately or cyclically introducing external gases containing molecules of component elements of a compound semiconductor to be formed on a substrate is repeated while appropriately controlling the pressure, substrate temperature and gas introduction rate in a crystal growth vessel, so that a monocrystal which is dimensionally as precise as a single monolayer can grow on the substrate by making use of chemical reactions on the heated substrate surface.
Patent GB-2164177-A (GB)
Title: Circuitry for control of the temperature of a heating element adapted to be contacted by a material to be heated
Inventor: KUPPER ANTON
IPC: H05B6/06
Filed: 1985-08-29
Abstract: A circuit arrangement for control of the temperature of a heating element (1) adapted to contact a material (2) to be heated, e.g. exposed microfilm, includes a transformer wherein the secondary winding (1) is a metal ring (1) which constitutes the heating element (1) with a temperature detection winding (5) provided on the core (3) of the transformer. An electronic switch (8), e.g. a triac, and current sensing means (9) are connected to the primary (4). A comparator (10), which receives input signals from the current sensing means (9) and temperature detection winding (5), is operatively connected to the switch (8) to control its operation. <IMAGE>