baber/WOPTO huggingface dataset:
Patent GB-2211073-A (GB)
Title: Cover for drawer sliding gear
Inventor: BUTTERWORTH MARTIN JAMES
IPC: A47B88/04
Filed: 1987-10-16
Abstract: A sliding drawer unit for incorporating into office or domestic furniture has opposite sides 10, 20 formed of sheet metal, with each side, having a portion 13, 23 extending from its top edge and folded over and down to provide a shroud for sliding gear by which the drawer is slidably mounted to the item of furniture. <IMAGE>
Patent GB-2198950-A (GB)
Title: Surgical instruments
Inventor: MCLEOD RODERICK WILLIAM
IPC: A61B17/32
Filed: 1987-11-10
Abstract: A Rongeur for the removal of intervertebral disc material has an outer tubular jaw (2) the forward end (20) of which provides a biting surface (4), an inner jaw (1) which is slidable along the outer jaw, projects from its forward end and has a rearwardly directed circular cutting edge (34) which cooperates with the biting surface (4) of the outer jaw (2). At their rear ends, the jaws (1 and 2) are coupled e.g. by handles (5 and 6) so that the disc material can be severed by closing the cutting edge (34) about the biting surface (4). Severed material is removed by suction through a passage along the Rongeur which can be formed by a hollow inner jaw (1) or by a space between the inner and outer jaws. <IMAGE>
Patent GB-2199958-A (GB)
Title: Apparatus for the testing of compression springs
Inventor: BANZAF WERNER
IPC: G01B5/24
Filed: 1987-12-18
Abstract: The apparatus for the testing of compression springs, in particular the slant of the ends of the spring, has two rests, (14, 25), which are spaced apart and arranged in a respective gimbal suspension 13, 15 and 21, 22, between which rests a compression spring 20 can be restrained. The shafts of the gimbal suspension are equipped with angular resolvers (17,18; 23, 24), which transfer the slant of the rests (14, 25), due to slanted ends of the spring, to a computer for evaluation. In this way, the slant of the ends of the spring can be measured quickly, accurately and objectively with and without load.
Patent GB-2200422-A (GB)
Title: Breakstem blind rivet
Inventor: LACEY RAYMOND DENNIS
IPC: F16B19/10
Filed: 1988-01-27
Abstract: A breakstem blind rivet comprises a deformable tubular shell (11) of aluminium alloy having a bore (12) inside it. A stem (13) of low-carbon steel is a close fit within the bore, extending along the bore and having a head (14) adjacent the tail end (15) of the shell. The outside of the shell is formed with at least three zones (27, 28, 29) of modified strength spaced apart along its length, these zones being in the form of shallow grooves rolled into the surface. The spacing between each zone (27, 28, 29) and the next progressively decreases as the distance along the shell from the tail end (15) increases. Alternatively the grooves may be formed by a turning process.
Patent GB-2217644-A (GB)
Title: Injection moulding
Inventor: YAMAZAKI KUNIO
IPC: B29C45/17
Filed: 1988-04-22
Abstract: A resin moulding having hollow portions is produced by introducing molten synthetic thermoplastic resin into a mould cavity 13, sufficient to fill completely the mould cavity 13. Pressurised gas is also introduced into the resin within the mould cavity at a port 42. The resin moulding cools and hardens in the mould cavity whilst the gas is maintained under pressure. The mould cavity is designed to manufacture mouldings with unevenly distributed thick walled sections, the gate for the introduction of the pressurised gas being located at such a walled section. The gas flows only within the resin forming the thick walled sections and immediately adjacent areas of the moulding thereby taking up the shrinkage in the resin and forming a hollow portion in such sections. <IMAGE>
Patent GB-2219559-A (GB)
Title: Stabilizer wheels on a three-wheeled wheelchair
Inventor: MORSE JOHN FRANKLIN
IPC: B62K5/007
Filed: 1988-08-12
Abstract: A stabilizer system for a three-wheel powered wheelchair having a single front steering wheel (13) mounted in the front end of the frame (11) carrying two rear wheels (12) and a seat (10) at the frame rear end, said stabilizer system comprising stabilizer idler wheels (22) mounted at the sides of the front end of the frame (11) immediately behind the steering wheel (13) and normally slightly above ground level. The tendency to overturn on cornering is thus prevented. <IMAGE>
Patent GB-2213568-A (GB)
Title: Hydraulic transmission of the vane pump type
Inventor: HIRAMATSU TAKEO
IPC: F16D47/06
Filed: 1988-12-08
Abstract: The apparatus (10) includes a cam ring (11) connected to a first rotary shaft (8A) and a rotor (12) connected to a second rotary shaft (8B) and accommodated for rotation in the cam ring (11) to define pump chambers such as (21, 23) therebetween and is designed to transmit driving force between the first and second rotary shafts (8A, 8B) in accordance with a pressure of working fluid in the pump chambers which is produced in response to rotation of the first and second rotary shafts (8A, 8B) relative to each other. The apparatus (10) comprises a frictional force applying mechanism such as rubber rings (101, 102) or a friction shoe interposed between the first and second rotary shafts (8A, 8B) for applying predetermined frictional force between them to assure stabilized transmission of torque between the first and second rotary shafts (8A, 8B). The apparatus finds application to four wheel drive vehicles to reduce power transmission noise and the occurrence of so-called swerving phenomenon. 
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Patent GB-2220200-A (GB)
Title: Recovering nitrogen oxides from industrial plant emissions
Inventor: ZUBIZARRETA ENRIQUEZ JOSE IGNA
IPC: B01D53/56
Filed: 1989-06-02
Abstract: Gas is treated with sulphuric acid adsorbent in a conventional gas-liquid contact apparatus, with the formation of nitrosyl sulphuric acid and nitrogen oxides dissolved in the liquid phase. The resultant liquid is processed at a high temperature in another conventional gas-liquid contact apparatus in which, by means of hot air and/or steam, the concentrated nitrogen oxides are entrained in a gaseous flow, which can either be incorporated as a raw material in an existing manufacturing process e.g. a nitric acid plant, or can be used for the direct manufacture of nitric acid with water, thereby regenerating the flow of initial concentrated sulphuric acid.
Patent GB-2227821-A (GB)
Title: Devices for generating steam; wallpaper strippers
Inventor: MADDISON DAVID
IPC: B44C7/02
Filed: 1989-08-09
Abstract: A portable steam generator comprises a chamber 205 associated with a heating element 206 for heating water within the chamber in order to generate steam. The device comprises a main tank 201 for storing water. Steam from the chamber is replenished by water from the tank. This water may pass through an elongate passage or channel 242 on its way from the tank to the chamber. The capacity of the chamber is relatively small in relation to the tank thereby enabling a decrease in the heat-up time of the water within the chamber. The chamber may be within or adjacent the tank. A steam pad 50 is provided having an inlet 51 for receiving steam and means 55 for assisting distribution of the steam over the pad. A drainage outlet is also provided for permitting drainage of condensed steam away from the pad and return to the steam generator. <IMAGE>
Patent GB-2237255-A (GB)
Title: Conveyor web or flexible ladder
Inventor: MCRAE DOUGLAS CHARLES
IPC: B65G15/52
Filed: 1989-10-09
Abstract: A conveyor web comprises transverse bars 10 supported in location holes 12 accommodated within the thickness of drive bolts 14. Fibre reinforcement is provided at 20 and 22 to support the bars 12 and to increase the traction strength of the construction. The construction may be used as a flexible ladder for use with, for example, helicopters. <IMAGE>
Patent GB-2237686-A (GB)
Title: Antenna alignment
Inventor: HATTERSLEY KENNETH ROBERT
IPC: H01Q3/00
Filed: 1989-10-31
Abstract: A satellite antenna 4 is aligned in accordance with indications given by an indicator 38 which is driven by a signal superimposed on an antenna cable 8 by a remotely-located receiver 10. The receiver responds to error checking codes in the received signal for determining the degree of misalignment and deriving therefrom the signal for driving the indicator. <IMAGE>
Patent GB-2227287-A (GB)
Title: Allowing play in control actuation of transmissions of the toroidal-race rolling-traction type
Inventor: FELLOWS THOMAS GEORGE
IPC: F16H61/662
Filed: 1989-11-17
Abstract: A roller control system for a continuously-variable-ratio transmission of the toroidal race, rolling traction type, in which rollers (60) of variable orientation transmit traction between a part-toroidal race (85) formed on an input disc (61) and a similar race (87) formed on a coaxial output disc (62). Each roller is mounted to rotate about a fixed centre (66) and a fixed axis (58) within a rigid carriage (67), one end of which contacts operating mechanism reciprocable over a predetermined stroke of operating movement and operable to apply a control force to the carriage. The assembly of roller and carriage is located by only three contacts with adjacent structure, namely the two disc/roller contacts (86, 88) and the contact (82) with the operating mechanism. These three contacts suffice to cause the roller constantly to seek a ratio angle at which the instantaneous value of the control force is balanced by the instantaneous value of the traction forces to which the roller assembly is subjected due to the contact between the roller and the two discs, and at which the transmission is therefore in equilibrium.   In place of the double acting hydraulic cylinder shown there may be two single acting cylinders shown. Various other arrangements are disclosed using ball joints and/or flexible piston or cylinder walls to allow the required equalisation movement. <IMAGE>
Patent GB-2238480-A (GB)
Title: Breathing apparatus stowage
Inventor: STEWART JOHN STEWART SIMPSON
IPC: B64D10/00
Filed: 1989-11-21
Abstract: A stowage container 1, 4 for an emergency breathing apparatus has a seal 2, 3 which is only openable by actuation of an initiation means 5 if an electrical, compressed gas or other energy source 17 for moving breathable gas is functional. As shown a smoke hood 13 is stowed in the container 1, 4 which is evacuated through a valve 11 for stowage in an aircraft. Actuation of the initiation means 5 perforates an oxygen cylinder 17 to inflate the hood and release the vacuum to permit opening of the container. Preferably (Fig 3) the gas source has a first cylinder 17 for initial purging of the hood connected by a capillary 52 to a second cylinder 53 for subsequent gas supply while the hood is worn. Alternatively an electric fan circulates filtered ambient air through a CO2 absorber. <IMAGE>
Patent GB-2229820-A (GB)
Title: Compact shielded gradient coil system
Inventor: RATSON MORAD
IPC: G01R33/421
Filed: 1990-03-20
Abstract: The invention provides a compact shield gradient coil system 11 for magnetic resonance imaging with a first set of gradient coils 12 surrounded by an electrically conducting shield 13. A second set of gradient coils 14 is provided around the outside of the conducting shield 13. The first and second set of gradient coils 12, 14 and the conducting shield 13 produce a linear gradient field inside the imaging volume 16 and protect the imaging volume 16 from interference, such as eddy current interference. 
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Patent GB-2243120-A (GB)
Title: Wheelbarrow
Inventor: BRUNSDON ROBERT JAMES
IPC: B62B1/22
Filed: 1990-03-30
Abstract: A wheelbarrow has a body a which can be lowered to the ground by means of screw jack f, by rotating cranked lever h. The action of lowering the wheelbarrow moves wheel b forward so that the body a stays level. When the wheelbarrow is at ground level, loading or unloading requires less effort than a conventional wheelbarrow. The body a of the wheelbarrow can then be raised to the normal operational height of a wheelbarrow, or raised higher to its maximum height to facilitate tipping. The action of raising the wheelbarrow moves wheel b towards body a, thus moving the load contained in the body over the wheel. Less effort is then needed for tipping. In the fully raised position crossbar p which connects bars d acts as a brake to wheel b, also forks c prevent the wheelbarrow from tipping sideways. <IMAGE>
Patent GB-2230526-A (GB)
Title: Preparation of substituted ethenes
Inventor: GRAYSON JAMES IAN
IPC: C07C323/24
Filed: 1990-04-04
Abstract: PCT No. PCT/GB90/00501 Sec. 371 Date Jul. 18, 1991 Sec. 102(e) Date Jul. 18, 1991 PCT Filed Apr. 4, 1990 PCT Pub. No. WO90/12002 PCT Pub. Date Oct. 18, 1990.A potassium salt useful in the production of certain N-substituted alkyl or arylalkyl thionitroethenamines is produced by the reaction of the dipotassium salt of a 2-nitrodithio aliphatic acid such as 2-nitrodithio acetic acid with branched chain primary alkylamines, secondary alkylamines, arylalkylamines or heterocyclic alkylamines such as dimethylamine, pinacolylamine, benzylamine or piperonylamine, thereby converting one only of the KS-groups to an alkylamine group. The resulting monopotassium salt may be alkylated or arylalkylated to produce an N-substituted alkyl or arylalkyl thionitroethenamine. This compound may be reacted with a suitable amine to produce compounds containing the pharmaceutically active grouping -NHC(=CHNO2)NHX, wherein X represents an alkyl, arylalkyl or heterocyclic alkyl group.
Patent GB-2235256-A (GB)
Title: Flexible chamber pump
Inventor: ROBERTSON THOMAS JOHN MCNEEL
IPC: F04B43/09
Filed: 1990-06-20
Abstract: A flexible chamber pump comprises three flexible members (63, 64, 65) movable by fluid pressure in a sequence so that fluid passes through a casing (54) having ports (55, 56) for the entry and exit of the fluid. The outermost members perform a valving function which ensures a uni-directional flow through the casing. Electromagnetic coils (E) are energised to apply a magnetic force to pistons (A), the resulting motion causing fluid to be displaced through respective ports (X) into contact with the flexible members. The coils may be arranged to cause the pistons to be rotated, the rotation being converted into longitudinal movement by peripheral screw threads on the pistons meshing with complementary threads in the cylinder bores. Alternatively the actuating fluid may be oscillated by liquid columns which pass out of the casing to piston and cylinders operated by cam or crankshaft mechanisms. In another arrangement a rotary distributor supplies the fluid to the flexible members in the required sequence. Other embodiments are described wherein the flexible members are in the form of inflatable balloons located in a cylindrical or conical casing. <IMAGE>
Patent GB-2236273-A (GB)
Title: Stringiness-preventing member in an injection mould
Inventor: TAKEUCHI HIROSHI
IPC: B29C45/17
Filed: 1990-09-24
Abstract: A stringiness-preventing pad 10 having a resin passage hole 18 defined by partition loaves 16 is interposed between a sprue bush (9) and an injection cylinder nozzle (5), Fig. 2 (not shown), so that the partition leaves 16 are spread apart by the pressure of molten resin material (m) being injected into a mould (1) and elastically closed upon completion of injection. The resin material solidified in the sprue (3) is prevented from stringing by virtue of the partition leaves 16 which divide the resin in the bush (9) from the resin in the nozzle (5). Slight modifications to the pad are described. In all embodiments the pad acts as a heat-insulator between the spare bush and nozzle thereby allowing the resin in the spare bush to cool and solidify without being affected by the hot nozzle so that separation without stringiness is enhanced by this effect. <IMAGE>
Patent GB-2292012-A (GB)
Title: Circuit module for a phased array radar
Inventor: DEAN MICHAEL
IPC: G01S7/282
Filed: 1990-12-05
Abstract: A circuit module for a phased array radar (10, Fig 1) incorporates radar frequency (RF) reversable mixers 54a, 54b (Fig. 4) connected to an splitter/combiner 52 and to in-phase and quadrature RF reference signals from hybrid splitter 56. The RF mixers 54a, 54b are also connected to intermediate frequency (IF) processing circuitry 60 to 68. In transmission mode, the RF mixer 54a, 54b receive phase-controlled, digitally synthesised IF signals from clock-actuated generators 68a, 68b. Their outputs are combined at the RF splitter/combiner 52, to provide single sideband upconversion of the phase-control led IF signals to radar frequency for transmission by an element of the array. In reception mode, the RF splitter/combiner 52, the RF mixers 54a, 54b and IF circuitry 60 to 68 act collectively as an image rejection mixer circuit. Beamforming is carried out by computer control of the IF phases in transmission and in reception by computation of weight sums of output signals from an array of modules (12, Fig. 1). The weighed sums are provided by a common processor (26, Fig. 1) receiving dephased signals at either baseband or IF frequencies (Figs. 5, 6). <IMAGE>
Patent GB-2252219-A (GB)
Title: Telephone set with ornamental elements
Inventor: LEE PETER
IPC: H04M1/02
Filed: 1991-01-26
Abstract: A telephone set 1, comprising a casing having a slotted area 13 at the top which defines therein a plurality of cells 14 longitudinally and transversely connected to one another and commonly covered with a transparent cover plate 3, and a plurality of coloured ornament elements 2 alternatively put in the cells 14 to make patterns, pictures, numbers or characters for exhibition. <IMAGE>
Patent GB-2241946-A (GB)
Title: "Delay composition"
Inventor: BECK MICHAEL WILLIAM
IPC: C06B27/00
Filed: 1991-02-25
Abstract: A delay device or detonator contains a delay composition comprising a consolidated, particulate mixture of silicon and a suitable oxidant, and a minor effective proportion of dispersed metal compound intimately incorporated therewith to serve as a reaction facilitating flux. The metal compound may be selected from alkali metal salts such as sodium chloride, sodium sulphate, potassium sulphate; lead monoxide, oxides of antimony such as Sb2O3, or Sb2O5, vanadium e.g. V2O5 or mixtures thereof. The oxidant may be BaSO4 or Fe2O3.
Patent GB-2243874-A (GB)
Title: Gerotor pumps
Inventor: FREEMAN RICHARD ROBERT
IPC: F04C2/10
Filed: 1991-05-08
Abstract: A method of setting up the required running tolerances in a gerotor pump having annulus 12 and rotor 14 meshed together and located in a cavity in a body 10 comprises pressing by an interference fit a cover plate 26 into the body or another member (32, 50, 68, Figs 2, 3, 4) into the body to hold a closure part (44, 74) to close the cavity. The cover plate 26 or other member is then allowed to relax and recover elastically to set up the required tolerances at axial ends of the go rotor set. <IMAGE>
Patent GB-2255709-A (GB)
Title: Dishwasher apparatus
Inventor: MOONE RONALD
IPC: A47L15/42
Filed: 1991-05-15
Abstract: Dishwasher apparatus comprising a wash cabinet (1) adapted to receive articles to be washed, spray means (6, 7) mounted within the cabinet and operable to spray wash liquid within the cabinet, and a service unit (5) removably mounted with respect to the cabinet, the service unit having mounted therein wash liquid supply means (34, 35), pump means (54) operable to supply wash liquid from the wash liquid supply means, and electrical control means operable to control a wash cycle. In the wash cycle the liquid used for the final rinse of a load may be retained within the apparatus to pre-rinse and wash the following load. <IMAGE>
Patent GB-2248400-A (GB)
Title: Powder inhaler
Inventor: PRITCHARD JOHN NIGEL
IPC: A61M11/00
Filed: 1991-10-01
Abstract: A dry powder inhaler (10) consists of a chamber (12) into which powder is introduced from a metering system, and a mouthpiece (26) through which a patient inhales, connected by a duct (16), so that air flows through the chamber carrying the powder into the patient's lungs. Within the duct is an impactor (25) consisting of a plate (27) spaced in front of a similarly sized aperture, and between the chamber and the impactor plate is an orifice (18) narrower than the duct, so the air stream is diverted along S-shaped paths to avoid the plate. The presence of the impactor can improve the efficiency of delivery of a drug to the lungs, and decrease the unwanted dose to the mouth and throat, as the latter is principally due to agglomerates or larger particles which are intercepted or broken up by the impactor.
Patent GB-2248971-A (GB)
Title: Shielded printed wiring board
Inventor: NISHIYAMA YOSHIO
IPC: H05K3/46
Filed: 1991-10-09
Abstract: A method for manufacturing an electromagnetic wave shielded printed wiring board comprises the steps of: forming a conductive pattern 2 on an insulating substrate 1 forming a shield layer 5 by means of a conductive paste on at least part of the conductive pattern via the intermediary of an insulating layer 3 and on at least pan of the insulating layer 3, forming a jumper wire 4 by a conductive paste between the connecting terminals 2a, 2b of the conductive pattern 2 over the insulating layer 3, and forming a shield layer by a conductive paste on the jumper wire 4 via the intermediary of an insulating layer 30. <IMAGE>
Patent GB-2260623-A (GB)
Title: Calendar
Inventor: RUSHTON BRIAN DAVID
IPC: B42D5/06
Filed: 1991-10-15
Abstract: A calendar which comprises a plurality of leaves. Each leaf comprises an upper date displaying portion (14) and a lower detachable portion (16). The leaves are held together at the upper portions, and the calendar is mountable on a suitable support member by the upper portions for the purpose of display. When the lower portion has been detached, it can be used as a greetings card. <IMAGE>
Patent GB-2261714-A (GB)
Title: Safety device for a tyre moulding press
Inventor: DUFFY ANTHONY DONALD
IPC: F16P3/10
Filed: 1991-11-20
Abstract: A safety device for a tyre moulding press comprises a movable guard 26 adapted for positioning in front of and beneath the press aperture, which guard can be raised and located in receivers 24 by a press operator and which has switch means 28 operable by the safety guard to inhibit the operation of the press without the guard being in the raised position. In the preferred embodiment the guard is in the form of a roller blind 25. <IMAGE>
Patent GB-2262116-A (GB)
Title: Road scraper attachment for a clamshovel
Inventor: WHITE ROBERT VIVIAN
IPC: E02F3/96
Filed: 1991-12-04
Abstract: A road scraper attachment for a clamshovel comprises a slot B for engagement with the shovel teeth and means C engageable by the mouth of the clamshovel. <IMAGE>
Patent GB-2257951-A (GB)
Title: Air bag device for a vehicle passenger
Inventor: KOKEGUCHI AKIRA
IPC: B60R21/20
Filed: 1992-07-20
Abstract: An air bag device comprises a container having intake ports 40 for inletting air, valve plates 42 for opening and closing the intake ports and an air bag 10 accommodated in the container in the folded state. A gas generator 22, fixed to the container, has first and second gas ejecting holes 44, 46 sealed by a tape 38. When the gas pressure in the gas generator 22 exceeds a first pressure the tape covering the first ejecting holes 44 is broken allowing gas to flow to the air bag 10. The valve plates 42 allow air to flow into container through the intake ports 40. If the gas pressure exceeds a second higher pressure the tape covering the second gas ejecting holes 46 is also broken, the gas passing through the second ejecting holes 46 then causes the valve plates 42 to move thereby reducing the amount of the air flowing into the container. <IMAGE>