baber/WOPTO huggingface dataset:
Patent GB-2217359-A (GB)
Title: Prestressed concrete staircases
Inventor: FREEMAN WILLIAM ALBERT
IPC: B28B23/00
Filed: 1988-04-13
Abstract: The staircase is a single-piece concrete casting incorporated pre-stressed stressing wires 1 instead of a reinforcement cage. Steel angles 9 at the ends of the stairs ar fixed to anchor bars (11, 12, 2B) for transferring the load of the staircase to landings. The staircase is edge-moulded in a steel mould. A soffit former (22, Fig 5) has attached to it stressing means for imposing the pre-stress on the wires 1. Because the pre-stressed wires would cause the mould to jam when the wires are released from the stressing means, the step forming assembly is moved away from the soffit former, by drive means (23, Fig 5), prior to release of the wires. <IMAGE>
Patent GB-2204871-A (GB)
Title: Purification of phenyl ethyl alcohol
Inventor: WATTS MARK
IPC: C07C33/22
Filed: 1988-05-23
Abstract: Phenyl ethyl alcohol that is contaminated with phenolic impurities is purified by converting the phenolic impurities to metal phenolate and then distilling purified phenyl ethyl alcohol under reduced pressure.
Patent GB-2206229-A (GB)
Title: Advertising panel for motor vehicles
Inventor: ARMSTRONG WILLIAM
IPC: G09F21/04
Filed: 1988-06-24
Abstract: An advertising panel 10 for a motor vehicle can be releasaby mounted on a door 2 of the vehicle and includes a smooth outer surface 14 for carrying thereon advertising material. The panel may be hooked over the leading and trailing edges of the door with the hook (s) at the trailing edge being adjustable. It is shaped to fit over the bump bar 8 of the door and may be provided with a backing of rubberised plastics, polyurethane foam or rubber peripheral strip. <IMAGE>
Patent GB-2221527-A (GB)
Title: Heat exchanger
Inventor: WONG JAMES WING HO
IPC: F28D9/00
Filed: 1988-08-06
Abstract: The heat transfer efficiency of a heat exchanger is greatly increased by using a plurality of passageways of which the surface is embossed. The embossment interrupts the laminar boundary layer causing continuous generation and release of eddies. The passageways are defined by raised channel sections 4 abutting an adjacent plate. The height and pitch of the embossment may be varied to obtain optimum conditions for the fluid flowing through the respective passageways. <IMAGE>
Patent GB-2218768-A (GB)
Title: Pipe coupling with compressible sleeve
Inventor: LANE STEPHEN
IPC: F16L21/06
Filed: 1989-05-08
Abstract: A pipe coupling comprising a tubular body 1 of a plastic material; two sealing rings 2; two gripper rings 3 each having gripping ridges on the inner surface; an enclosure ring element 4 and means 5 for drawing inwards the enclosure ring element 4. Insertion of the pipe ends into the coupling is achieved with a minimum of resistance because of the clearance between the pipe and the gripping edges, and the loose fit between the pipe and the seals.   When the enclosure ring element/enclosure ring segments 4 are drawn radially inwards the gripping edges are also deflected inwards so that they grip into the pipe surface. At the same time the tubular body 1 deforms inwards until the inner surface bears against the pipe outer surfaces and a fluid tight seal is formed by each sealing ring 2 within the confines of each groove in the tubular body and the outside of the pipe. <IMAGE>
Patent GB-2223282-A (GB)
Title: A sealing assembly
Inventor: SMITH ROBERT MILES
IPC: F16H25/24
Filed: 1989-09-26
Abstract: A sealing assembly adapted to provide a sealing contact with a shaft 3 having a helical groove 4 formed therein comprises a stiffening member 5 and a sealing member 6. The sealing member has a sealing surface 7 on which a sealing abutment 8 is formed with a wiping means having two spaced apart upstanding sections 9. An outwardly facing sealing surface 10 forms a statue seal with the casing 2. A central body section 11 has two upwardly extending arms 12, 12a. The inner arm 12 forms a continuation of the inwardly facing sealing surface 7 whilst the outer arm 12a forms a continuation of the outwardly facing sealing surface 10. <IMAGE>
Patent GB-2237515-A (GB)
Title: A board game
Inventor: SHERRARD WILLIAM
IPC: A63F3/00
Filed: 1989-10-25
Abstract: A board game comprises a board, a set of first playing cards and a set of second playing cards. The board has a number of first and second card locations 14,16 mapped on its upper surface together with playing stations 18 for each intended player. The board game can be based upon a sporting theme, and the object of the game is for the participants to compete by utilising the sets of first and second playing cards in association with the playing stations and card locations mapped on the board in order to score points and eventually decide a winner. As shown for the theme of world cup football, the first playing cards identify teams 23 and a trick is collected when a set of three is completed on a first card location 14. The game ends when all tricks have been taken and the winner is the player having the most points as determined from the second playing cards. <IMAGE>
Patent GB-2228365-A (GB)
Title: Silicon electroluminescent device
Inventor: BARRACLOUGH KEITH GORDON
IPC: H01L27/15
Filed: 1989-11-03
Abstract: PCT No. PCT/GB88/00319 Sec. 371 Date Nov. 6, 1989 Sec. 102(e) Date Nov. 6, 1989 PCT Filed Apr. 25, 1988 PCT Pub. No. WO88/09060 PCT Pub. Date Nov. 17, 1988.An electroluminescent silicon device comprises a light emitting diode (10). The diode (10) includes a p+ semiconductor contact (42) and a n- layer (32), forming a p-n junction (43) therebetween. The n- layer (32) is carbon-doped and irradiated with an electron beam having electrons with energies of between 150 and 400 keV to form G-centres. The diode (10) is electroluminescent when forward biassed, radiative recombination occuring at the G-centres. The invention reconciles the conflicting requirements of creating luminescent defect centres by irradiation while avoiding damage to electronic properties. The device may be an integrated light emitting diode (200) incorporated in a CMOS microcircuit. Photon output from the diode (200) may be relayed to other parts of a CMOS microcircuit by an integrated waveguide (224).
Patent GB-2232191-A (GB)
Title: Door lock furniture
Inventor: MILLS SIMON DAVID EDWARD
IPC: E05B3/10
Filed: 1990-03-05
Abstract: Lock furniture comprising a door lock having a spring bolt operated by rotation of a follower and an elongate spindle of polygonal cross section engaged within a corresponding hole in the follower. Substantially to eliminate free play between the interengaging elements the spindle 1, at the portion thereof received within the hole in the follower, is split into two separate members 1a, 1b in longitudinal alignment and in overlapping contact with each other on transverse faces 7 each at an oblique angle to the longitudinal axis of the spindle. Means comprising inclined surfaces (10, 11) Fig. 4 engageable by retaining screws in the handles, or a grub screw (24) fitted axially in one of the members 20b, are operable to draw the two members 1a, 1b of the spindle longitudinally apart so that they slide over each other at their contacting transverse faces 7 and thus cause the spindle to expand into engagement with the wall of the hole in the follower. <IMAGE>
Patent GB-2245279-A (GB)
Title: Shampoo composition
Inventor: HITCHEN DAVID ANDREW
IPC: A61K8/27
Filed: 1990-06-20
Abstract: An aqueous shampoo composition comprises, in addition to water,   (a) a surfactant chosen from anionic, nonionic or amphoteric surfactants, and mixtures thereof;   (b) an insoluble, non-volatile silicone; (c) a suspending polymer chosen from polyacrylic acid, cross-linked polymers of acrylic acid, copolymers of acrylic acid with a hydrophobic monomer, copolymers of carboxylic acid - containing monomers and acrylic esters, cross-linked copolymers of acrylic acid and acrylate esters, and heteropolysaccharide gums; and (d) titanium dioxide coated mica.
Patent GB-2245910-A (GB)
Title: Flushing and refilling arrangement for a W.C. cistern
Inventor: FROEBERG TORD
IPC: E03D1/36
Filed: 1990-07-09
Abstract: Flushing and refilling arrangement (1) for a WC cistern (2) with a cover (3), comprising a release mechanism (13), an overflow pipe (17), an inlet float arrangement (18) with refilling arrangement (19), a bottom valve (32, 35) and a discharge float arrangement (20) co-operating with the latter. All these parts are put together so as to form a unit suitable for semi- or wholly automatic assembly. In addition, they are provided with means (42, 186-189) for compensating varying mutual and external dimensions and angles. One of these means is a joint (42) about which overflow pipe (17) is secured, in radially movable manner, within an overflow branch (31) of a bottom part (12), the other branch (30) of which forms seat (32) of the bottom valve. Release mechanism (13) has a button (159) which can be changed over between a pressure and a lift mode, whereby the mechanism comprises means exerting a pulling action on the discharge float (113) irrespective of the button setting. Inlet float arrangement (18) provides in all cases the same refill volume, whereas the discharge float can, on a lift bar (112), be set at different levels of height resulting in different flush volumes. Overflow pipe (17) is designed in such a way as to narrow conically in the downward direction, and it supports both the inlet and the discharge float arrangement as well as the release mechanism, the upper part of the latter constituting an anchorage for the cistern cover. <IMAGE>
Patent GB-2235140-A (GB)
Title: Parallel-wire screen
Inventor: MCMAHON FRANK
IPC: B07B1/46
Filed: 1990-08-16
Abstract: A screening has a series of parallel wires (10) extending across a top opening between two longitudinally opposed ends of a box frame having one or more transverse support bars (18). A support bar capping member (20) is provided for the or each support bar (18). The capping member (20) is of inverted 'U' cross-section and has wire support means formed of a series, equal in number to the series of parallel wires (10), of transverse cuts (22) through the web (24) and impinging into the limbs (26) each cut (22) being to receive a wire (10). Two straps (28) are provided to be located along the inside of the web (24) with a respective wire (10) to be trapped therebetween. One or more capping members (20) can be pre-fitted to a quick-fit screen. <IMAGE>
Patent GB-2248509-A (GB)
Title: Controlling froth concentrate level in a flotation machine
Inventor: CHUMAK FEDOR ALEXANDROVICH
IPC: B03D1/14
Filed: 1990-10-05
Abstract: The automatic regulator device comprises a circuit (5) for measuring the level and density of pulp in a chamber (1), wherein two bubbling pipes (6, 7) are in communication with a differential pressure pickup (10) connected to a circuit (28) for controlling the flow rate of frother from a tank (32) and to a correction unit (13) which is also connected to a pressure pickup (11) communicating with the pipe (6). The output of the correction unit (13) is connected to a circuit (18) for controlling the flow rate of water and frother through a valve (20) in response to a pulp level deviation from a preset value. A water-and-frother flow transducer (22) is connected to a circuit (23) for controlling the rate of gangue discharge through a control valve (27) in response to a deviation of the flow rate of water and frother from a preset value so that the level remains constant. <IMAGE>
Patent GB-2237641-A (GB)
Title: Method and apparatus for measuring speed of ultrasonic waves in samples
Inventor: NEGITA KEISHI
IPC: G01N29/024
Filed: 1990-10-15
Abstract: The propogation speed of supersonic (ultrasonic) wave transmission through a medium 6 of known length is measured by generating RF pulse trains at each cycle of a predetermined time interval ti, each train being composed of at least two consecutive RF pulses generated at a predetermined time period ts for exciting an output supersonic wave from a transducer 5. The method also includes inputting a signal indicative of a superposed supersonic echo, occurring due to the output supersonic wave applied to the medium, on the Y-axis of an oscilloscope 8, and inputting continuous X-axis trigger pulses having a predetermined period to on the X-axis of the oscilloscope. The speed of propagation is derived on the basis of the length of the medium and the period ts read through the oscilloscope when the amplitude of the or each signal becomes greatest and the echo signals are overlapped in phase, by adjusting the value of the period to while keeping the period relationship of to = ts = ti/m, wherein m is an integer which exceeds the number of pulses in the RF pulse train. <IMAGE>
Patent GB-2237044-A (GB)
Title: A barrier
Inventor: DUNNE AMBROSE
IPC: E04H17/16
Filed: 1990-10-17
Abstract: A barrier which comprises two support members (30) and a barrier member (60). Each of the support members (30) having a ground engaging base (31) and a post member (32). The post member (32) has a first recess (38) and a second recess (39). The first recess (38) has a shape or configuration for receiving a cooperating part (80) of a first barrier member (60); the second recess (39) has a different shape or configuration for receiving a cooperating pan (70) of a second barrier member (60). <IMAGE>
Patent GB-2237629-A (GB)
Title: Thermal storage medium
Inventor: CLULOW MALCOLM GEORGE
IPC: C09K5/00
Filed: 1990-10-24
Abstract: A storage medium is intended to store thermal energy in a high capacity manner with relatively high heat transfer. The medium includes activated alumina and an aqueous medium and the storage medium may be usable at low temperatures and up to about 200  DEG C. Heat exchange with the storage medium utilises the specific heat of the medium and enthalpy arising out of reversible endothermic and exothermic chemical changes to give high thermal storage capacities which can be enhanced if the range includes a phase change. The thermal storage medium can be used in storage systems such as air conditioning and in systems where the thermal energy is utilised at locations remote from the charging station.
Patent GB-2237688-A (GB)
Title: Telescoping antenna
Inventor: YAMAZAKI TORU
IPC: H01Q5/10
Filed: 1990-10-25
Abstract: A telescoping antenna having a lower antenna portion (2) and an upper antenna portion (1) co-axial with the lower antenna portion (2). An inner cavity of the lower antenna portion contains means (19, 18) for forming an electrical connection with the outer conducter of a co-axial feeder cable (7) extending into the cavity. The electrical connection means (18, 19) creates an impedance characteristic which prevents the flow of leakage current from an upper antenna portion into the lower antenna portion, yielding improved sensitivity. <IMAGE>
Patent GB-2251200-A (GB)
Title: Monitoring the tie bar extensions of toggle operated injection moulding machines
Inventor: TOOZE HENRY
IPC: B29C45/76
Filed: 1990-12-29
Abstract: An injection moulding machine (1) of the toggle operated type comprises a plurality of tie bars (2) extending between a fixed platen (3) adapted to carry one half (6) of a mould tool and a back platen (4), a movable platen (5) adapted to carry the other half (7) of the mould tool and to be interposed between the fixed platen (3) and the back platen (4) and displaceable along the tie bars (2) under the control of a drivable toggle mechanism (8), and a linear transducer (10) associated with the back platen (4) to measure linear extension of the tie bars (2), an output of which transducer (10) is connected to a display and/or a control system to indicate tie bar extensions during the injection moulding operation resulting from the two mould halves (6, 7) being forced together by activation of the toggle mechanism (8). <IMAGE>
Patent GB-2251544-A (GB)
Title: Over-shoulder harmonica holder
Inventor: MCCOWAN DUNCAN CAMPBELL
IPC: A45F5/00
Filed: 1991-01-12
Abstract: A holster of durable material 1 with pockets 2 to accommodate harmonicas, an adjustable strap with buckle 5 for securing the holster around the chest. The interior is lined with soft material for comfort 4, and the harmonicas are positioned so that when the holster is worn they are not liable to dislodge themselves. The holster performs the function of making harmonica selection a quick and easy process. thus overcoming an inherent problem for the multi-harmonica performer. <IMAGE>
Patent GB-2254128-A (GB)
Title: Valve indicators
Inventor: JOHNSON ROBERT ANTHONY
IPC: F16K37/00
Filed: 1991-03-27
Abstract: A valve indicator for indicating the status (OPEN or SHUT) of a gas valve has a housing 10 releasably engagable with the body 24 of a valve eg a gas valve. The housing 10 rotatably mounts an internal sleeve 11 on which is mounted, by a screw thread, a pointer 12, 23. A face of the housing 10 presents valve status information (OPEN or SHUT). Rotation of a valve spindle 25 causes rotation of the sleeve 11 which causes axial movement of the pointer 12 to bring it alongside the correct valve-status indication. <IMAGE>
Patent GB-2259733-A (GB)
Title: Improvements relating to water cisterns
Inventor: HAMER ROY
IPC: E03D1/00
Filed: 1991-09-17
Abstract: The disclosure relates to the field of domestic water storage, and particularly to devices for preventing condensation build up on domestic toilet cisterns. A cistern 1 is provided with thermally insulating means 2 between water contained therein 3 and the outer surface of the water cistern 1. The means 2 may be in the form of a liner, which may be bonded to the cistern, or a bag, or may be in the form of a foamed material sprayed on to the inner surface of the cistern. The material may be foamed polystyrene or rubber. <IMAGE>
Patent GB-2250736-A (GB)
Title: Recovery of copper from copper solutions with reducing sugars and hydrosulphite
Inventor: KELLER MARKUS
IPC: C02F1/52
Filed: 1991-11-20
Abstract: Process for the recovery of copper from copper-containing industrial waste waters, in which the ionogenic copper or the copper in complex form is firstly reduced with sugar, then with dithionite, and is separated in metallic form.
Patent GB-2253069-A (GB)
Title: Films for non-linear optics.
Inventor: ASHWELL GEOFFREY JOSEPH
IPC: G02F1/35
Filed: 1991-11-27
Abstract: Multi-layer Langmuir-Blodgett films comprising alternate layers of an optically non-linear amphiphilic compound and a spacer compound wherein the spacer comprises at least two hydrophobic substituents, have high second order non-linear optical coefficients, are stable over a prolonged period and quadratic SHG enhancement based on the number of layers. They are useful in a variety of opto-electronic devices.
Patent GB-912638-A (GB)
IPC: C11D13/02
Abstract: 912,638. Pressing soap tablets. ELELMISZERIPARI GEPGYAR. Dec. 24, 1958, No. 41676/58. Class 87(2). A bar of soap 1, Fig. 1, is fed to the space 3 between two discs 4, 5, Fig. 3, which revolve together. A series of bores 4a are formed in the disc 4 in which punches 6a are slidable. Punches 7a are slidable in bores 5a in the disc 5, opposite the punches 6a. As the discs rotate, the punches 6a retract and the punches 7a advance into the bores 4a, moving further forward than the punches 6a move back, with the result that a piece is first cut off from the soap bar and is then compressed. On continued rotation of the discs, the punches move in the reverse direction and the shaped piece is moved into the opening 3, whence it drops on a delivery conveyer. On further continued rotation of the discs, a scraper 9 which projects into the space 3 scrapes away residual soap; then the discs are cleaned by a brush 10 and wiped, by a sponge-like wiper 11, with salt or glycerine solution.
Patent GB-2263976-A (GB)
Title: Pressure sensing utilising magnetostrictive material
Inventor: CROSSFIELD MICHAEL DAVID
IPC: B60C23/04
Filed: 1992-01-31
Abstract: Pressure is sensed by stressing and altering the magnetic properties of a piece of magnetostrictive material 5, reducing its permeability and increasing its coercivity. The changes may be detected by applying an alternating magnetic field to the material 5, and determining the phase and/or amplitude of harmonics in the induced field emitted by the material. The material 5 may be a film 5 on a pressure sensing diaphragm 3, or a coil may be wound round the material 5 forming a variable inductance. The sensor and detection circuitry may move relative to each other, eg for sensing vehicle tyre pressure, with the detection circuitry mounted on the vehicle body. The sensor may seal a hole in a vehicle wheel (35) with the piece of magnetostrictive material 5 outside the pressurised volume but subject to the tyre pressure through the hole in the wheel, or may be attached to the tyre wall using the tyre as a diaphragm. <IMAGE>
Patent GB-2264016-A (GB)
Title: Wireless input device for computer.
Inventor: SUZUKI TORU
IPC: G06F3/038
Filed: 1992-02-04
Abstract: A wireless input device for computer comprises a pen-type input device 5 having a source of light capable of transmitting pulses. The wireless input device further comprises an input device body 4 including two angle detecting sections, each having a light receiving element constructed so that it is directed to the direction of incident light when the incident light from said source of light is detected, and a calculating section for calculating the position of the pen-type input device from the two incident angles detected by the two angle detecting sections. <IMAGE>
Patent GB-2251646-A (GB)
Title: Runner means for curtains and similar
Inventor: JUNG CLAES
IPC: E06B9/90
Filed: 1992-02-19
Abstract: Runner means for curtains and the like consisting of a jacket (1), on which the curtain is wound, a plate wheel (5), a fixed shaft (2), a chain wheel (3), plates (6) and a spring (7). The plate wheel (5) is mounted on the shaft (2) so as to enable it both to rotate and to be axially displaced relative to the shaft. Every second plate (6) is attached to the fixed shaft (2) and the others to the plate wheel (5). Furthermore, the plates are attached to the shaft (2) and the plate wheel, respectively, in such a way that they cannot rotate relative to the part to which they are attached, but can be axially displaced. The curtain is fixed by the spring (7) pressing the plate wheel (5) leftwards, the plates (6) by means of the frictional action locking the plate wheel (5) at the fixed shaft (2). When the height of the curtain is to be changed the chain wheel (3) is rotated in relation to the plate wheel (5), the plate wheel (5) being moved rightwards, due to the fact that the contact area between the chain wheel (3) and the plate wheel (5) is saw-toothed. When the plate wheel (5) is moved rightwards, against the action of the spring (7), the plates (6) will be moved apart, whereby the height of the curtain can easily be changed.
Patent GB-2254383-A (GB)
Title: Pumping arrangement for the dosed conveyance of liquids
Inventor: FALB WOLFGANG
IPC: F04B53/08
Filed: 1992-03-25
Abstract: A dosing pump (1) for the dosing of low-boiling liquids, in particular anaesthetic liquids (12), is improved such that continuous dosage of the liquid (12) is rendered possible. For this purpose, the pump chamber (7) is kept at a temperature below the boiling point of the liquid (12) by means of a cooling arrangement (14), preferably a Peltier element. The pumping arrangement may also include a storage container (13) which is also cooled by a cooling arrangement (114) and an outlet line (8) which may be guided along the warm outer surface (21) of the Peltier element (14) whereby the liquid is vapourized. A conveying pump (18) drawing from a vessel (17) is switched on to replenish the container (13) when a low level indicator is activated. <IMAGE>