baber/WOPTO huggingface dataset:
Patent GB-2233321-A (GB)
Title: Making sulfuric acid by catalytic oxidation of sulfur dioxide gas and multistage absorption of wet conversion gas
Inventor: MCALISTER DONALD RAY
IPC: B01J19/02
Filed: 1990-06-20
Abstract: An improved process for manufacture of sulfuric acid by catalytic oxidation 3 of wet sulfur dioxide gas. Wet conversion gas is contacted with sulfuric acid in a heat recovery stage 11 to effect absorption and generate the heat of absorption. Wet gas having a mole ratio of sulfur trioxide to water vapor of at least 0.95 is introduced into the heat recovery stage at a temperature above the dew point of the gas. Sulfuric acid is introduced into the heat recovery absorption stage at a temperature of at least about 17 DEG C and a concentration between about 98.5% and about 99.5%. The sulfuric acid stream as discharged from the absorption stage is at a temperature of at least about 190 DEG C and has a concentration between about 99% and about 100%. The heat of absorption is recovered from the discharge absorption acid stream in useful form by transfer of heat to another fluid in a heat exchanger 15, the another fluid being heated to a temperature of at least about 140 DEG C. The exit gas stream from the heat recovery stage is contacted with sulfuric acid in a condensing stage 23 for absorption of residual sulfur trioxide and condensation of sulfuric acid vapor. The liquid/gas contact in the condensing stage is carried out before the exit gas is either exhausted from the process or catalytically oxidized to produce additional sulfur trioxide. <IMAGE>
Patent GB-2235658-A (GB)
Title: Writing implement with magnetic closure
Inventor: INOUE SHIGEYASU
IPC: B43K8/02
Filed: 1990-08-09
Abstract: A writing implement has a sleeve 18 formed with an axial bore 183, a barrel 14 inserted in the bore and retractably projectable forward from the forward end of the sleeve, and a closure 22 for closing the forward end opening of the sleeve bore. At least the forward end portion 181 of the sleeve 18 and the closure 22 are made of a magnetic material, and at least one of the sleeve forward end portion and the closure is formed by a magnet 50 as to attract the other. The closure 22 is connected to the sleeve 18 by a member 24 made of an elastic material so as to be movable between a position where the closure closes the forward end opening of the sleeve bore and a position where the closure opens the forward end opening to permit the barrel 14 to project forward. The closure 22 is biased by the member 24 toward the sleeve 18 to a position where the closure is attractable by the sleeve. <IMAGE>
Patent GB-2247900-A (GB)
Title: Spacer for double-skin building panel
Inventor: WALLWORK ADRIAN
IPC: E04D12/00
Filed: 1990-09-11
Abstract: Two skins of a double-skin building panel are spaced apart by a bracket/channel section combination, wherein the channel 10 has outwardly extending flanges 8 which are gripped by jaws or recesses of the bracket, the other end of which has a flange for attachment to one of the skins, e.g. via a screw-hole. <IMAGE>
Patent GB-2240854-A (GB)
Title: Motor-driven zoom lens barrel
Inventor: KOHMOTO SHINSUKE
IPC: G02B7/10
Filed: 1991-02-07
Abstract: A motor 22 - driven zoom lens barrel has a rotatable zoom operation ring 26 which may be axially slidable to a first powered position which may be integral with a switch ring 27 which is rotatable from a neutral Position. A rotational direction control circuit (32, 37, 38 Fig 2) may detect rotation of the switch ring to actuate a zoom motor 22 in the forward and reverse directions for varying the focal length of a taking lens L1, L2. A speed control circuit may be included to control the rotational speed of the motor according to the angular displacement of the zoom operation ring from its neutral position. The zoom operation ring may be slidable axially to a second manual position wherein a manual lever 23 and manual zoom ring 28 vary the focal length of the taking lens L1, L2. <IMAGE>
Patent GB-2243170-A (GB)
Title: Hollow, plastics roofing panels
Inventor: LANCASTER JOHN EDWARD
IPC: E04C2/54
Filed: 1991-03-01
Abstract: A hollow plastics roofing panel has one or more ducts 112, 114 and, at opposite edges thereof, complementary coupling members 30, 32 or 120, 122, 130, 132 to interengage two panels side by side with a stiffening bar 50 or 150 interposed between the edges. A capping to cover the upper side of the joint is provided either by a separate 50 member 58 engaging bar 50 or by one of the coupling members 132. <IMAGE>
Patent GB-2242047-A (GB)
Title: Alphanumeric data entry systems
Inventor: BYSTRIANYK ROMAN T
IPC: G06F3/023
Filed: 1991-03-12
Abstract: The data entry system includes a keypad having twelve data entry keys (19) and three shift keys (13, 15, 17). In the first mode of the data entry system, numeric characters are entered by a single keystroke. The other modes are activated by sequential keystrokes of a respective shift key (13, 15, 17) and a data key (19). The shift keys (13, 15, 17) are color coded with respect to the alpha characters entered by a particular key. The keypad is in bus communication with a keypad driver which in turn is in bus communication with a microprocessor. <IMAGE>
Patent GB-2242250-A (GB)
Title: A construction joint member
Inventor: DOCHERTY THOMAS PATRICK
IPC: F16B12/46
Filed: 1991-03-19
Abstract: A construction joint member (3) (4) has an end portion of cruciform cross-section, at least two of the legs (2) of the cruciform portion have their end faces offset from each other in a direction longitudinal of the member (3) by a distance substantially equal to or a multiple of the length of the leg (2) in a direction lateral of the member. The member (3) could comprise a central section having a square cross-section, and four peripheral sections (2) extending from the sides of the central section, wherein the ends of at least two of the peripheral sections and the central section are not co-terminus. When a number of such members are used to form a construction joint, the square cross-section of the central section and peripheral sections for each member are equal and the distance between the ends which are not co-terminus is chosen so that the non co-terminus ends of each joint member cooperate with the non co-terminus ends of the other joint member in order to form the joint. <IMAGE>
Patent GB-2254365-A (GB)
Title: Security sliding bar for double doors
Inventor: MURTON CLIVE ALFRED GEORGE
IPC: E05C7/04
Filed: 1991-04-04
Abstract: A security sliding bar for double doors 10111 comprises two sets of hardened steel components: one set 10 mounted on the outside of the double doors and a second set 11 mounted on the inside. The external set 10 comprises a sliding bar 18 with upturned end 19 attached to one of the double doors and an angle bracket 12 on the other door the upright branch of which cooperates with the end 19 of the sliding bar 18 for engagement by a padlock. The internal set 11 comprises a sliding bar 17 coupled to be moved by the external sliding bar 18. The bar 17 slides within guide brackets 23 and 24 attached to one of the double doors and guide brackets 21 and 22 bolted to the second of the double doors. The bar 17 is provided with a gaff 28 which may be engaged by a locking device. <IMAGE>
Patent GB-2243456-A (GB)
Title: Optical modulator and optical communication system utilizing the same
Inventor: SANO HIROHISA
IPC: H01L27/15
Filed: 1991-04-10
Abstract: An optical modulator includes two cladding layers (5-1, 5-2) of different conductivity, a light absorption layer (3) formed between the cladding layers for propagating incident light and an optical waveguide layer (20-1, 20-2) formed between the cladding layers and optically connected to the light absorption layer, for propagating the light. The light absorption layer comprises an electroabsorbent material whose refractive index varies in response to a voltage applied between the cladding layers. The optical waveguide layer serves to compensate for the change in refractive index of the light absorption layer by having its refractive index vary in opposition to that of the light absorption layer, which results in a reduction of the chirping quantity of the modulator. There is also described an optical device comprising a waveguide on which is formed a laser diode, an optical modulator and an insulating layer for electrically isolating the diode from the modulator. <IMAGE>
Patent GB-2247137-A (GB)
Title: Radio communication apparatus which can be tested by radio and optical test signals
Inventor: ISHII DAISUKE
IPC: H04B10/07
Filed: 1991-07-18
Abstract: A radio communication apparatus 21, such as a paging receiver, is tested by not only a radio test signal RTS but also an optical test signal OTS. Each test signal carries a test digital data signal. The apparatus has a radio processing section 24, 25 for processing the radio test signal into the test digital data signal. A data processing section 28, 29 processes an input data signal into a processed data signal. Responsive to the processed data signal, an announcing section 30, 31 announces generation of the processed data signal. An optical processing section 32, 27 processes the optical test signal into the digital data signal. Connected to the radio and the optical processing sections and to the data processing section, a selector 26 selects, as the input data signal, one of the test digital data signals produced by the radio and the optical processing sections. The selector 26 may be manually operated or controlled by an optical control signal received by section 32, 27, (fig 4). In an alternative arrangement, the announcing section can be selectively inhibited by control signals transmitted optically or acoustically from the radio test signal transmitter (figs 6, 7). <IMAGE>
Patent GB-2247601-A (GB)
Title: Cutting apparatus and methods for use in micropropagation.
Inventor: BILLINGTON WILLIAM PETER
IPC: A01H4/00
Filed: 1991-07-25
Abstract: A robotic end effector (48) for use in micropropagation comprises six resilient gripping elements (11) which are splayed apart by a transverse plate (13) carrying a blade (15). The end effector is placed over a plant to be divided, with the distal ends (14) encompassing the plant. As the blade (15) is lowered, the plate (13) allows the distal ends (14) to move together and grip the plant which is then cut by the blade (15). The entire end effector is lifted and moved to a planting location. A fork (17) is propelled downwardly until the fingers (18 and 19) of the fork enter the region (16) and dislodge half of the cut plant portion. At a further planting location, the gripping elements (11) are rotated through (180), and the fork (17) is again lowered to dislodge the second cut portion of plant.
Patent GB-2250209-A (GB)
Title: Puzzle toy
Inventor: ISHIYAMA SHOZO
IPC: A63F9/24
Filed: 1991-11-27
Abstract: A puzzle toy has a board (2) with a recess (5) defined in its upper surface. The toy includes a plurality of first projections (19) projecting on the upper surface of the board and having first shapes, respectively, when viewed in plan; a plurality of first blocks (23) having respective holes (31) defined in surfaces thereof and having respective shapes complementary to the first shapes of the first projections (19) for fitting engagement therewith, and respective cavities (29) defined in other surfaces thereof and having respective second shapes, respectively, when viewed in plan; and a plurality of second blocks (37) having respective shapes complementary to the second shapes, respectively, when viewed in plan, for fitting engagement in the cavities (29), respectively, of the first blocks. The second blocks (37) have respective second projections (39) having the first shapes, respectively. The first projections (19) are vertically movable downwardly, and may be positioned above sound generating units that produce sounds when the first projections (19) are moved downwardly. The first blocks (23) can be fitted in the recess (5) of the board (2). <IMAGE>
Patent GB-2252288-A (GB)
Title: Improvements in or relating to conveyors
Inventor: WIGGINS CHRISTOPHER NEVILLE
IPC: B65G17/32
Filed: 1991-11-28
Abstract: A conveyor assembly 1 comprises two conveyors 2 of identical form, one disposed above the other. The conveyors 2 transport sausages 3, disposed in rows, extending normal to the plane of the figure. Each conveyor 2 comprises a plurality of parallel-disposed rollers 4 movable along an endless path 5 of trapezoidal form. The conveyor is formed and constructed whereby the lateral spacing between a co-operating pair of rollers 4 at the end of the upper run is temporarily enlarged, so as to allow a row of sausages 3 to pass between the pair and onto rollers 4 of the return or lower run below, as indicated by the arrow 8. <IMAGE>
Patent GB-2263118-A (GB)
Title: Drill stem testing method and apparatus
Inventor: VIGOR ANDREW WILLIAM
IPC: E21B34/06
Filed: 1991-12-02
Abstract: A test string section for a well comprises a valve (40) having a mandrel (60), a rupture disk (58), and a series of ports (56). The valve is arranged above a packer. A second port (50) is arranged on a pipe section (44) beneath the packer and a flow tube (52) extends through the internal bore (66). On rupturing the disk the port (56) is opened whereby mud can be pumped into the rat hole to kill the rat hole with the packer seals intact. <IMAGE>
Patent GB-2262227-A (GB)
Title: Articles of furniture
Inventor: RAWLING PETER JOHN
IPC: A47C3/16
Filed: 1991-12-14
Abstract: An article of furniture 2 comprises a base part 4 which contains a large number of polystyrene filling elements so that with the base part 4 folded in half, as shown in the Figure, it defines two layers 6, 8 and is substantially firm. The base part 4 is maintained in its folded state using a plurality of toggle arrangements disposed adjacent the end of the two layers 6, 8. The article of furniture 2 also includes a U-shaped support member 12 which is substantially full of filling elements so that the member 12 is substantially rigid and self-supporting. The support member 12 is secured to the base part 4 by means of a plurality of toggle arrangements 16. The article of furniture 2 is in the form of a chair. The base part 4 and support member 12 may be reconfigured so as to define a bed/lounger by unfolding the base and securing the support member 12 on the base towards one end thereof. Various other articles of furniture may be provided by using a plurality of base members 4 and/or support members 12. <IMAGE>
Patent GB-2253911-A (GB)
Title: Detecting a gaseous,vaporous or colloidal component of a gaseous medium.
Inventor: MAY WOLFGANG
IPC: G01N27/416
Filed: 1992-04-23
Abstract: The gaseous medium enters a test receptacle 1 via a sealing element 3, 4 which is permeable to the gaseous medium but impermeable to reaction solution 2, and is absorbed in reaction solution 2 in which a change in resistance occurs and is detected by a resistance measuring device 7-13 with the aid of electrodes 5, 6 immersed into the reaction solution 2. The reaction solution 2 contains a substance which reacts with the component which is to be detected and forms a reaction product which alters the conductivity of the reaction solution 2, an example being sodium hydroxide for detecting hydrogen chloride. <IMAGE>
Patent GB-2255980-A (GB)
Title: Hydroxygallium phthocyanine
Inventor: DAIMON KATSUMI
IPC: G03G5/06
Filed: 1992-04-24
Abstract: Crystals of hydroxygallium phthalocyanine, a method of preparing the crystals, a photoconductive material containing the crystals, and an electrophotographic photoreceptor having the material. The photoreceptor has excellent electrophotographic characteristics. The crystals of hydroxygallium phthalocyanine having distinct diffraction peaks at (i) 75 DEG , 9.9 DEG , 12.5 DEG ,16.3 DEG , 18.6 DEG , 25.1 DEG  and 28.3 DEG , or (ii) 77 DEG , 16.5 DEG , 25.1 DEG  and 26.6 DEG , or (iii) 79 DEG , 16.5 DEG , 24.4 DEG  and 27.6 DEG , or (iv) 7.0 DEG , 75 DEG , 10.5 DEG , 11.7 DEG , 12.7 DEG , 17.3 DEG , 18.1 DEG , 24.5 DEG , 26.2 DEG  and 27.1 DEG , or (v) 6.8 DEG , 12.8 DEG , 15.8 DEG  and 26.0 DEG  or (vi) 7.4 DEG , 9.9 DEG , 25.0 DEG , 26.0 DEG  and 28.2 DEG , of the Bragg angle (2 theta +/-0.2) in the X-ray diffraction spectrum. The electrophotographic photoreceptor has a light-sensitive layer containing the photoconductive material of the crystals.
Patent GB-2255141-A (GB)
Title: Sealing element
Inventor: LATTY CYRIL XAVIER
IPC: F16J15/22
Filed: 1992-04-24
Abstract: A sealing element, particularly for control valves comprises a braided band having an elastic care (2) and lubricated sleeve (3) made of different materials. Preferably the core (2) is braided PTFE-impregnated yarns of carbon-fibre and the sleeve (2) braided PTFE-impregnated and lubricated yarns of PTFE. <IMAGE>
Patent GB-2267117-A (GB)
Title: Locking means assembly of suitcase and the like.
Inventor: JIANG JY-CHANG
IPC: E05B35/00
Filed: 1992-05-16
Abstract: A locking assembly has a housing 10 containing an actuating member 16 coupled to a member 32 associated with a locking arrangement 60 which comprises a member 52 movable by a lock body 74 to engage, via 54, 56, a member 40 to cause it to either engage or disengage from member 32. A plurality of locking members 80, 82, 84, 86, 88 are received in the lock body 74, and an unlocking member 144 slidable in slot 142 has an unlocking portion 154 capable of cooperating with each of the locking members 80, 82, 84, 86, 88 so as to enable the unlocking member 144 to release the lock body 74 and thereby move member 52 to release member 40 from member 32 and allow operation of member 16. <IMAGE>
Patent GB-2271289-A (GB)
Title: Board game
Inventor: COLLINS MICHAEL DAVID
IPC: A63F3/02
Filed: 1992-05-27
Abstract: A board game apparatus comprises a board (2) having a primary playing zone (4) and a number of secondary zones (6, 8, 10, 12 and 14). Each secondary playing zone has a gate (26) and five packs of cards containing instructions or guides. <IMAGE>
Patent GB-2257331-A (GB)
Title: Power control circuitry for a tdma radio frequency transmitter
Inventor: WALCZAK THOMAS J
IPC: H04B1/40
Filed: 1992-08-19
Abstract: A TDMA cellular telephone (600) includes, in its transmit signal path, microphone (608), vocoder (612), data format circuitry (601), quadrature modulator (602), 90 MHz local oscillator (606), transmitter with mixer (604), transmitter filter (618), and antenna (620). In its receive signal path, the TDMA cellular telephone (600) includes receiver filter (622) coupled to antenna (620), quadrature demodulator (624), and data deformat circuitry (625). The channel frequency of TDMA cellular telephone (600) is loaded into synthesizer (616) by microcomputer (614) and applied to transmitter (604) and demodulator (624). TDMA cellular telephone (600) is controlled by microcomputer (614) which includes a memory with a control and signalling computer program stored therein. Transmitter (604) includes novel power control circuitry (100) comprised of variable gain stage (104), mixer (106), bandeaus filter (109), and directional coupler (112) in a forward path, and detector (116), AID converter (118), digital controller (120), and D/A converter (126) in a feedback path. <IMAGE>
Patent GB-2270481-A (GB)
Title: Particle separators
Inventor: MANN DARRELL LEE
IPC: B01D45/08
Filed: 1992-09-11
Abstract: A separator, for removing solid particles from the air intake of an aircraft gas turbine engine, comprises a panel array of separator units, each of which comprises a through duct enclosing an obturator which divides the air flow into a particle-rich fraction, which is discharged separately, and a particle-depleted fraction, which is passed to the engine. The unit in Fig. 3 comprises a duct 24 of circular section, which may be extended by an inlet of square or hexagonal section so that the in lets together cover the whole intake area of the panel. Outlet 34 for the particle-rich fraction comprises one or more holes, whose effective area may be adjusted by an external sleeve (Figs. 8, 9). In Figs. 5, 6 the ducts are of rectangular cross-section and the obturators extend parallel to each other and comprise cavities, which divert the particle-rich fraction to a common outlet. Flow dividers which define the ducts may carry adjustable flaps to vary the ratio between the two fractions (Fig. 7). <IMAGE>
Patent GB-2264997-A (GB)
Title: Pressure control valve
Inventor: UJITA TOSHIHIKO
IPC: B41J2/175
Filed: 1993-02-22
Abstract: A valve mechanism includes a supporting member having an opening for communication between separated spaces; a thin film (12) covering the opening of the supporting member; a confining member (13) for confining a part of the thin film (12) on the supporting member. <IMAGE>
Patent GB-2266895-A (GB)
Title: Priming surfaces to receive electrophoretic paint coatings
Inventor: HEMS BRIAN
IPC: C25D13/20
Filed: 1993-05-13
Abstract: A process for depositing an electrophoretic paint coating on a substrate such as otherwise incompatible metal eg. zinc alloy, comprising the step of first depositing on said metal at least one metallic or metalised primer coating eg. an electroplated coating of copper, nickel and/or chromium or a lacquer containing aluminium oxide, and then depositing the electrophoretic paint by electrophoretic deposition.
Patent GB-2278699-A (GB)
Title: Domestic meter
Inventor: BISHOP PHILIP JOHN
IPC: H02J13/00
Filed: 1993-05-17
Abstract: A meter for remote reading of a utility such as gas, water or electricity comprises a measurement sensor (30), a radio receiver (31) and a radio transmitter (32), for transmitting measurement information generated by the sensor. The radio receiver and transmitter cooperate to pass on information from other meters. Flow control means can be connected to the receiver to enable remote control. Communication between each meter and a hub (5) is carried out by hopping along chains of meters in neighbouring premises. <IMAGE>
Patent GB-2273771-A (GB)
Title: Detector for infrared radiation
Inventor: FOX NIGEL PAUL
IPC: G01J1/42
Filed: 1992-08-21
Abstract: A radiation detector (2) for detecting infrared radiation, which radiation detector (2) comprises: (i) an enclosure (4) having means (6) through which a radiation beam can enter the enclosure (4); (ii) at least two radiation-sensitive devices (10, 12) which produce electrical signals responsive to impinging radiation, and which are positioned inside the enclosure (4) such that (a) the radiation beam can impinge upon a first one of the radiation-sensitive devices (10, 12) and be partially absorbed by that radiation sensitive device, (b) any non-absorbed radiation is reflected from the first radiation-sensitive device to the next radiation sensitive device, and (c) the non-absorbed radiation from the last radiation-sensitive device is reflected back over the same path towards the first one of the radiation-sensitive devices; and (iii) an output means (22) for providing external access to an electrical signal produced by the radiation-sensitive devices (10, 12); and the radiation detector (2) being such that the radiation-sensitive devices (10, 12) are indium/gallium/arsenide radiation-sensitive devices which enable the radiation detector (2) to detect infrared radiation in the wavelength region of 980-1640 nm. <IMAGE>
Patent GB-2275844-A (GB)
Title: Image Zone Discrimination Using a Neural Network
Inventor: MURDOCK MICHAEL C
IPC: G06V30/10
Filed: 1994-02-18
Abstract: An image zone discrimination system 10 and method automatically identify whether a region of a raster image contains text, pictures, or tables by using a neural network 13. The neural network 13 includes neurons 14 which subsample the region and a multi layer perceptron 16 which determines whether the region is text, a picture, or a table. <IMAGE>