baber/WOPTO huggingface dataset:
Patent GB-2224751-A (GB)
Title: Darkening aluminium workpieces; brazing
Inventor: ROSS ROBERT ANDERSON
IPC: C23C8/02
Filed: 1988-09-13
Abstract: A method of treating an aluminium workpiece which may be a heat exchanger to darken a surface thereof comprises applying a coating comprising alkali metal and halogen values to the surface, heating the coated workpiece in an inert atmosphere and bringing the heated workpiece into contact with a carbon oxide such as carbon dioxide. Alternatively the carbon oxide may be provided from a carbon-oxygen containing compound present in the coating, eg a carbohydrate such as sugars, starches, cellulose and their derivates; oxalates; or carbonates. The coating may be a brazing flux, such as that used in the Nocolok brazing systems such as a potassium/aluminium fluoride brazing flux and the method may be performed in conjunction with brazing. The aluminium workpiece which may be an alloy so treated has a blank adherent coating comprising potassium, fluorine, aluminium, carbon and oxygen values. The workpiece may be maintained in contact with the carbon oxide at a temperature of from 95% of the solidus temperature of the coating expressed in  DEG K up to the solidus temperature of the workpiece, eg 560-640 DEG C.
Patent GB-2227268-A (GB)
Title: Mobile bridge to facilitate continuous road repairs
Inventor: FISH HUGH ROBERT ASQUITH
IPC: E01C23/06
Filed: 1988-10-18
Abstract: A bridge with ramps at each end, able to move slowly longitudinally along a motorway carriageway, which carries vehicles up and over a reconstruction train beneath, moving at the same speed. The bridge is built in interconnected hinged segments to enable it to follow the road surface both horizontally and vertically. <IMAGE>
Patent GB-2211947-A (GB)
Title: Nuclear magnetism borehole logging tool
Inventor: VINEGAR HAROLD JAY
IPC: G01N24/00
Filed: 1988-11-03
Abstract: A borehole logging device is disclosed for measuring the nuclear magnetism response of earth formations following the application of a large magnetic polarising pulse. The device employs a detector that is capable of detecting both sinusoidal and slowly varying changes in magnetic field, the former being caused by precession of mobile nuclei about the earth's magnetic field at their Larmor frequency and decaying with a short relaxation time T2*, and the latter being due to polarisation decay with a long relaxation time T1. Thus both T1 and T2* may be determined in a single measured cycle. Such a detector may be one or more laser-pumped helium magnetometers, or one or more high-temperature Superconducting Quantum Interference Devices (SQUID). The invention uses a micro-miniature Joule-Thomson refrigerator to maintain the high-temperature SQUIDs below their superconducting transition points. The SQUIDs are flux coupled in an axial gradiometer configuration to reduce motion-induced magnetic noise. <IMAGE>
Patent GB-2226104-A (GB)
Title: Faucets
Inventor: WU CHIN-TAI
IPC: F16K11/085
Filed: 1988-12-17
Abstract: On rotation of a selector knob 201, a faucet can be operated either automatically (Fig 2B) by a solenoid valve 207, 208 driven by an infrared detector, or manually, Fig 3, by a rotary sleeve valve 203, the knob 201 being mounted on the solenoid valve. During manual operation the knob 201 is rotated so as to hold the solenoid valve closed via a spring (209) urged post 210. During automatic operation, the outlet (e) of the sleeve valve 203 is closed. <IMAGE>
Patent GB-2232088-A (GB)
Title: Cycle exerciser
Inventor: TSENG D H
IPC: A63B22/12
Filed: 1989-04-18
Abstract: A cycle exerciser has a one-way sprocket and a pair of one-way pinions disposed on a compound shaft. The one-way pinions are respectively rotated by a pair of lever arms (70) through a respective toothed element (50) and a connecting mechanism. The toothed element (50) engages and rotates a respective one-way pinion. The connecting mechanism comprises a substantially cylindrical swivel block and a torsional spring. The swivel block has a rim portion for fixedly securing to the toothed element (50) and a protruding swivel shaft for telescopically receiving one end portion of the lever arm (70). The connecting mechanism, which is fixed to the toothed element (50) by the rim portion thereof, connects to the lever arm (70) in such a way that the lever arm (70) can perform oscillatory and swivelling movement like rowing boats. The compound shaft is arranged to drive and energy absorbing wheel (80). <IMAGE>
Patent GB-2234093-A (GB)
Title: Data store connection
Inventor: WALKER BARRY JOHN
IPC: G06F5/00
Filed: 1989-06-21
Abstract: Apparatus for connecting an additional data storage device to a computer port, such as a printer port, that is not necessarily adapted for connection to a data storage device. An interface circuit comprises means for reading stored multibit data to a memory device and reading the multibit data from the memory device in a sequence of data segments that can be handled by a lesser number of data lines. In the case of standard parallel printer ports the data and control lines may be switched to carry respective control signals and data.
Patent GB-2222019-A (GB)
Title: Display device
Inventor: MANNING PETER ANTHONY
IPC: G09F19/04
Filed: 1989-07-13
Abstract: A display panel sits in an open-topped sleeve (10) secured inside the window (6) of a shop door. A line (24) is tied to the top of the panel (20) and passes through a guide (26) near the top of the door to a fixed retainer (30) near the door jamb. Preferably a portion of the line (24) is elastic. Opening the door causes the panel (20) to be raised relative to the sleeve (10) providing a moving display to attract the attention of a customer entering the shop. <IMAGE>
Patent GB-2227914-A (GB)
Title: Hand-held sprayers having a counterbalancing weight
Inventor: GILL DAVID CHARLES
IPC: B05B15/06
Filed: 1989-08-03
Abstract: Hand-held equipment, for example a herbicide applicator, comprises a handle member 24 and an operative portion 4 extending away from the handle member 24, the equipment further comprising a counterbalancing weight 22 which is releasably and/or displaceably attached to the handle member in such a position as to be capable of counterbalancing the weight of the operative portion. The equipment preferably is an applicator for agrochemicals. <IMAGE>
Patent GB-2234495-A (GB)
Title: Handled carton and blank therefor
Inventor: WONNACOTT ROGER JOSEPH
IPC: B65D5/72
Filed: 1989-08-04
Abstract: A packaging carton having a carrying handle (30) formed from a reinforced strip of carton material has the central bowed region of the handle stabilised by an aperture in an upper flap (10) overlying the top panel of the carton that includes the carrying handle. <IMAGE>
Patent GB-2235499-A (GB)
Title: Syphoning system
Inventor: DYER BRIAN
IPC: F04F10/00
Filed: 1989-08-30
Abstract: The syphoning system is designed to be easily operated by one person. The support clip 11 is rotated until the hole in the support clip is aligned with the notch cut in the hose. The syphoning process is initiated as follows. With the support clip 11 held under water, a finger is placed over the support clip's hole and a tap to which one end of the hose is connected is turned on. After a short time, the tap is turned off and the finger is used to sense whether or not water is being sucked into the support clip's hole. If not, the process is repeated until suction indicates that syphoning is taking place. The locating clip 10 and the sucker ensure that the support clip 11 is held under water. <IMAGE>
Patent GB-2223527-A (GB)
Title: An attachment for converting a ladder into a step-ladder
Inventor: WOOLGAR EDWIN
IPC: E06C1/22
Filed: 1989-09-12
Abstract: An attachment for converting a ladder into a step ladder comprises a pair of support members or legs 15 joined by cross-members 16, 17 and arranged to be pivotally attached to the ladder e.g. by means of a rod 19 passing through the top ends of the support members and one of the rungs 11, A pair of foldable side stays 20 are each pivoted at one end to a respective leg 15 and at the other end to a respective side of the ladder 10 by a second rod 22. A platform 29 may be mounted on the upper cross-member 17 and one of the rungs 11. A lower cross-member 16 may be foldable so that, in conjunction with the foldable side stays 20, the attachment can be folded flat with the logs substantially parallel to the side members 14 of the ladder. <IMAGE>
Patent GB-2227438-A (GB)
Title: Apparatus for chamfering or rounding and deburring the end edges of toothed gears
Inventor: BAUMSTARK MAX
IPC: B23F19/10
Filed: 1989-12-22
Abstract: The apparatus has two pressure wheels (12, 14). Provided on each pressure wheel, axially side by side, are a ring of guide teeth (12.41, 14.41) and a ring of deburring teeth (12.42, 14.42) projecting circumferentially beyond the ring of guide teeth, which rings have a filleted transition between them and together form rounding or chamfering teeth (12.43, 14.43) by means of which the end edges of the production gear are rounded or chamfered without cutting, in that the pressure wheels (12, 14) are pressed radially and axially against the production gear (10) by means of adjusting drives (26; 22, 24). 
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Patent GB-2230693-A (GB)
Title: Bags
Inventor: NAJAR JAMES RAYMOND
IPC: A45C3/00
Filed: 1990-04-27
Abstract: A bag comprises a sleeve (1), formed from a sheet of material, closed at its ends and having an opening (2, not shown) along its length. Sliding rings (3, 4) are provided to constrict the sleeve and so define cavities (5 and 6) at each end, and a central portion which forms the holding means of the bag. The volume of each of the cavities (5, 6) is governed by the position of the rings (3, 4) along the sleeve (1). Alternatively, opening (2) may be replaced by respective openings at each end of the sleeve. The sleeve may be closed at one end only, with only one cavity being proved. <IMAGE>
Patent GB-2231088-A (GB)
Title: I.c engine valve gear providing variable timing and lift
Inventor: YAGI SHIZUO
IPC: F01L13/00
Filed: 1990-04-27
Abstract: The intake and exhaust valves 16a, 16b are driven through respective rocker arms 13a, 13b, by cams 7a, 7b formed on respective camshafts 8a, 8b. The camshafts are supported arms 6a, 6b that are independently pivotable about a shaft 4. By pivoting the support arms the camshafts may be moved to advance or retard the valve timings and to adjust the valve lift. The timing and lift of the intake and exhaust valves may be adjusted independently. The arms 6a, 6b may be pivoted by hydraulically operated pistons (1a, 1b, Fig.1) having helical spine connections (19a, 19b) to arm hubs or by hydraulic cylinders 28a, 28b, 31. The rocker arms 13a, 13b may be pivoted on a common central shaft (fig.7). 
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Patent GB-2234248-A (GB)
Title: Improved lactone-treated dispersant additives derived from amido-amine adducts
Inventor: GUTIERREZ ANTONIO
IPC: C08F8/34
Filed: 1990-05-22
Abstract: A lactone modified dispersant additive comprises at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.7 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula:   <IMAGE> wherein X is sulfur or oxygen, Y is -OR<4>,-SR<4>, or -NR<4)<R<5>), and R<1>, R<2>, R<3>, R<4> and R<5> are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and a C5 - C9 lactone material. The additives may be post-treated for example by boration.
Patent GB-2237102-A (GB)
Title: Clay gun for a machine for plugging the tap-holes of a shaft furnace
Inventor: MAILLIET PIERRE
IPC: C21B7/12
Filed: 1990-08-23
Abstract: The gun comprises a hydraulic jack for actuating a piston (16) sliding in a clay chamber (12) fixed in the extension of the jack. The piston (16) is provided with one or more closed annular peripheral rings (18) having a flat cross-section and whose axial length is considerably greater than the radial thickness. <IMAGE>
Patent GB-2238836-A (GB)
Title: Anti-locking hydraulic brake system
Inventor: BURGDORF JOCHEN
IPC: B60T8/42
Filed: 1990-10-11
Abstract: In an anti-locking hydraulic brake system comprising a master brake cylinder (1) connected by conduit (4) to at least one wheel brake (5), an intermediate accumulator (9) connected by a return conduit (7) to the wheel brake (5), inlet and outlet valves (6, 7) in the respective conduits (4, 7) and a pump (10) for delivering pressure fluid from the intermediate accumulator (9) to the wheel brake (5) above the inlet valve (6), a throttle (27) is provided in an intake conduit (11) between the intermediate accumulator (9) and the pump (10) which acts to reduce pedal pulsation during braking slip control. A valve (29) in parallel with the throttle is opened when the accumulator is filled so as to supply the conduit (4) while the pump has not yet attained its full discharge capacity after being switched on. A valve (40) is switched over for traction slip control and supplies the fluid from the master cylinder reservoir (2) to the pump intake downstream of the throttle. <IMAGE>
Patent GB-2237792-A (GB)
Title: Apparatus for tipping a skip
Inventor: COFFEY MANUS
IPC: B66C1/66
Filed: 1990-11-09
Abstract: Apparatus (10) for mounting on a truck (1) for transferring a skip (8) onto and from a flat bed (6) of the truck (1) and for tipping skip (8) comprises a jib (29) pivotally mounted on a column (28) on the flat bed (6). A carriage (52) movable along the jib (8) supports a first skip engaging bracket (50) on a winch rope (51) for raising and lowering the skip (8). The first skip engaging bracket (50) comprises a pair of hook members (67) extending downwardly for engaging a first pivot shaft (22) of the skip (8). A second skip engaging bracket (71) mounted on the jib (29) carries a pair of hooks (76) for engaging a second pivot shaft (24) on the skip (8) for tipping the skip (8) on lowering of the first skip engaging bracket (50). Preferably the truck holds a number of such skips (8). <IMAGE>
Patent GB-2238543-A (GB)
Title: Preparing 5-(4-hydroxyphenyl)hydantoin
Inventor: HENDRICKX THEO L
IPC: C07D233/78
Filed: 1990-11-20
Abstract: A process for preparing 5-(4-hydroxyphenyl)hydantoin, comprises reacting  alpha -(4-hydroxyphenyl) - alpha -hydroxyacetic acid, or a C1-3 alkyl ester thereof, with bis(trimethylsilyl)urea, in the presence of chlorotrimethylsilane or dichlorodimethylsilane; and hydrolysing the reaction mixture with an aqueous mineral acid.
Patent GB-2239507-A (GB)
Title: Damping device
Inventor: TAKEGUCHI HAJIME
IPC: F16F13/14
Filed: 1990-11-29
Abstract: A damping device, eg for vehicle engine mountings, comprises a resilient member 16 mounted between rigid inner and outer sleeves 12, 14, a longer passageway 32 providing communication between a working chamber 22 containing fluid and a first compensation chamber 30, and a shorter passageway 36 providing communication between the working chamber 22 and a second compensation chamber (34 - Fig. 6). The resilient member 16 has openings therein defining diaphragms of different resilience eg 26, 42 bounding the working chamber 22 and the first and second compensation chambers. The longer passageway 32 and the diaphragms bounding the working chamber 22 and the first compensation chamber 30 are designed to damp lower frequency vibrations, eg due to engine running, while the shorter passageway 36 and the diaphragms bounding the working chamber and the second compensation chamber are designed to damp higher frequency vibrations, eg due to engine idling. A radial opening 28 divides part of the member 16 into portions 16a, 16b in which the first and second compensation chambers are respectively located. Reinforcing rings 46, 48 are embedded in the member 16. <IMAGE>
Patent GB-2252938-A (GB)
Title: Loose leaf rivetted binding
Inventor: WEBB HUGH RAYMOND
IPC: F16B19/10
Filed: 1991-02-06
Abstract: A binding for paper sheets comprising a cover (10) which has a front portion (12) and a rear portion (14) extending from a spine (16). There are holes (26, 28) in the front and rear portions (14), which line up with holes in the paper, and rivets (36, 38) which extend through these holes. Each rivet (Fig 3) comprises first and second parts (36, 38) which snap-fit together to thereby retain the sheets within the cover. A prizing tool (56, Figs 7 to 9) enables separation of the two rivet parts. <IMAGE>
Patent GB-2254279-A (GB)
Title: Electrochemical machining.
Inventor: GLEW DEREK AUBREY
IPC: B23H9/00
Filed: 1991-02-07
Abstract: A method of electrochemically machining a workpiece (10) made of electrically conductive material so as to provide a radius on an edge of the workpiece comprises: (a) providing a cathodic tool (28) comprising a cathode section (30) sandwiched between two anode sections (32) and separated therefrom by insulation (34), (b) locating the tool adjacent to but separate from the workpiece (10) so that the cathode section is positioned centrally over the edge (36) of the workpiece to be radiused and the anode sections lie facing opposite sides of the edge, (c) causing electrolyte to flow between the tool and the workpiece, (d) applying a cathodic voltage to the cathode section, (e) applying preselected anodic voltages simultaneously to the workpiece and the anode sections so that electrical field null points (38, 40) between the cathodic tool and the workpiece lie either side of the edge to be radiused, and (f) varying the electrical field between the tool and the workpiece so as to cause the null points in the electrical field to move with respect to each other and said edge of the workpiece to ensure an overall energy distribution across said edge to create the radius required.
Patent GB-2241432-A (GB)
Title: Hand grips
Inventor: STUART PAUL CONWAY
IPC: A45F5/10
Filed: 1991-02-27
Abstract: A hand grip has a cylindrical body 1 which incorporates exterior grip contouring 2, a slot 3 along the entire length of the body which allows for easy insertion or extraction of carrier bag handle loops, and curvature to the slot ends 4 which guides the handle loops out of the slot in a manner that provides stability to the grip. <IMAGE>
Patent GB-2244107-A (GB)
Title: Anti-lock controlled brake system
Inventor: REINARTZ HANS-DIETER
IPC: B60T8/40
Filed: 1991-03-07
Abstract: in an anti-lock-controlled brake system comprising a braking pressure generator (6) with a master cylinder, an auxiliary hydraulic pressure pump (2) and slip-controlled electromagnetically-operable inlet valves (7) and outlet valves (14) inserted into the pressure medium lines a hydraulically-controlled pressure limiting valve (3) is provided and acted on at its control in lets (15) both by the pressure of the pump (2) and by a pressure acting on the wheel brake (1), the pressure limiting valve (3) opening towards a pressure-less return line (13) in order to control the pump pressure in the event of the differential pressure exceeding a defined pre-pressure. The defined pressure may be set by a spring (16). <IMAGE>
Patent GB-2249434-A (GB)
Title: Portable semiconductor memory device
Inventor: MORI YOSHIHIDE
IPC: B42D15/10
Filed: 1991-03-18
Abstract: In a portable semiconductor memory device, a negative electrode terminal 15 electrically connected to the circuit ground 13 of a printed circuit board 4 contacts both the negative pole of a cell 8 and conductive outer plates 2, 3 when the cell is loaded into the device. When the cell is not loaded, the circuit ground of the board is not in contact with the conductive outer plates. Therefore, backup data can be protected from being destroyed due to noise from outside when the cell is loaded, and ground superimposed noise from the conductive outer plates can be cut off when the cell is not loaded. <IMAGE>
Patent GB-2254564-A (GB)
Title: A board game
Inventor: SCHARF DANIEL
IPC: A63F3/00
Filed: 1991-04-10
Abstract: Apparatus for playing a board game comprising: a playing board (1) provided with a chequer pattern and markings representing goals (13A, 13B), two sets of playing pieces (2A-9A, 2B-9B) consisting of pieces corresponding to at least some of those used in the game of chess; a piece (10) representing a ball; and rules providing for movement of the playing pieces (2A-9A, 2B-9B) about the board (1) in accordance with the movement of the corresponding chess pieces. When a playing piece (2A-9A, 2B-9B) is moved to a position occupied by the ball piece (10), the ball piece (10) is moved in dependance upon which playing piece (2A-9A, 2B-9B) has been used whereby two players each using one of the respective sets of playing pieces (2A-9A, 2B-9B) can seek to move the ball piece (10) into their opponent's goal. <IMAGE>
Patent GB-2257849-A (GB)
Title: Semiconductor chip test jig
Inventor: ARMSTRONG ROSS LOVAT
IPC: G01R1/04
Filed: 1991-06-28
Abstract: A semiconductor chip test jig for testing a chip 10 with "gull-wing" leads 11 comprises a body 20 and a cover 30. The body 20 has sets of fins or combs 23 which engage with the leads 11 to locate the chip 10 in the horizontal plane; the cover 30 has a set of "knife-edge" lead supports 35 formed to match a trim and form jig in the region of the leads 11 from where they emerge from the encapsulation of the chip 10 to their first bends; and the body 20 has a set of spring-loaded pins 24 which contact the leads opposite the lead supports. <IMAGE>
Patent GB-2246513-A (GB)
Title: Use of piperidine-2,6-diones to treat neoplasms
Inventor: DOWSETT MITCHELL
IPC: A61K31/4427
Filed: 1991-07-05
Abstract: The use of compounds of formula (I), wherein R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms and their acid addition salts, for the manufacture of a medicament for use in the treatment of androgen dependent disorders, especially neoplasms, most especially prostatic cancer.
Patent GB-2259904-A (GB)
Title: Plastics bag with neck or shoulder strap
Inventor: MOHAMMED MUZAFFAR IQBAL
IPC: B65D33/06
Filed: 1991-09-30
Abstract: A plastics bag 3 for snack food or confectionery has cuts 4 and weak points 5 which can be ruptured to extend a built- in loop/strap to be placed around the neck or over the shoulder, thus giving the consumer both hands free to eat the contents at their will. The bag also has a built-in easy opening facility by providing two lips 7 at the top of the content area, not sealed with each other to be held between index finger and thumb of each hand and pulled apart. The loop/strap will not tangle during packing process while manufacturing. <IMAGE>
Patent GB-2250031-A (GB)
Title: Aluminum surface having chemical conversion coating formed by reaction of nitrate/sulphate and organic compound
Inventor: ISOBE YASUAKI
IPC: C23C22/56
Filed: 1991-11-18
Abstract: A chemical conversion coating formed on a surface of an aluminum substrate comprises a composite material formed by a reaction of a nitrate or sulphate of an alkali metal or alkaline earth metal and an organic compound that can form a compound with aluminum or exhibit a weak basicity in an aqueous aluminum treating liquid comprising the nitrate or sulphate of alkali metal or alkaline earth metal and the organic compound, with the aluminum substrate. The coating is corrosion-resistant, bacteria-proof or fungiproof, and the surface may be of a heat exchanger. The organic compound may be sodium mercaptobenzothiazole, oxine triethanolamine or sodium benzoate. The conversion coating consists of a basic double salt including aluminium ions, at least one metal ion selected from alkali metal ions or alkaline earth metal ions. at least one ion selected from nitrate and sulphate ion, and an ion derived from the organic compound.