baber/WOPTO huggingface dataset:
Patent GB-2151007-A (GB)
Title: An absorption heat pump
Inventor: MOSS DR GERALD
IPC: F25B15/00
Filed: 1983-12-09
Abstract: A beat pump using an azeotrope as working fluid and suitable for pumping low temperature heat comprises two condensers (40, 28), two evaporators (2, 14), a first absorber (5) paired with a first generator (18) and a second absorber (12) paired with a second generator (21). A vapour outlet of the first evaporator (2) communicates with a vapour inlet of the first absorber (5) and a vapour outlet of the second evaporator (14) communicates with a vapour inlet of the second absorber (12) and a vapour outlet of the first absorber (5) communicates with a vapour inlet of the second absorber (12). A conduit (26) having an expansion valve (27) interconnects a vapour outlet of the second generator (21) with the first generator (18) and a conduit (29) connects a vapour outlet of the second generator (21) with the second condenser (28). A conduit (30) having an expansion valve (31) interconnects the second condenser (28) with the second evaporator (14). Low temperature heat is supplied to the first evaporator (2) via (1) and high temperature heat is supplied to the second generator (21) via (33). There are means for delivering to the load heat of absorption from the second absorber (12), means for delivering to the load heat of condensation from the first condenser (40) and means for delivering to the first generator (18) latent heat of condensation from the second condenser (28). <IMAGE>
Patent GB-2155802-A (GB)
Title: Reclaiming used foundry sand
Inventor: VOGEL ALFREDO
IPC: B01J8/36
Filed: 1983-12-23
Abstract: An apparatus for reclaiming used foundry sand containing an organic binder comprising means for separating a mass of sand from a casting, sand supply means (11, 10a, 51) to supply the separated sand to a heating station (16), heating elements (21) at the heating station (16) to heat the sand to an elevated temperature, fluidising means (22) to introduce combustion supporting gas into the sand at the heating station (16) at a plurality of locations to fluidise the sand, a sand passage (60) to pass the heated sand to a treatment station (29), gas feed means (35a) to feed combustion supporting gas to the sand at the treatment station (29) so as to continue the reclamation of the sand utilising heat applied to the sand at the heating station (16), and means (35a) for removing reclaimed sand from the treatment station (29). <IMAGE>
Patent GB-833557-A (GB)
Abstract: 833,557. Weighing apparatus. VANDOME & HART Ltd. July 10, 1958 [Oct. 10, 1957], No. 31722/57. Class 143 In a weighing machine comprising a beam 1 pivoted on a support 2 and having a balance arm 4 to balance the load 11 on the opposite arm 10 of the beam, the balance arm 4 carries a cam 5 which guides a steel tape 6 suspending a rack 7 gravity biassed to follow the cam and engage a pinion 9 driving a pointer of a full revolution scale, the cam 5 being shaped to provide a desired relation, such as linear, between the pinion rotation and the beam load. As shown the rack 7 is weighted at 8 and may be suspended offcentre to be biassed against the pinion, the latter being journalled in ball races. The rack may also be held against the pinion by a backing roller or bearing block.
Patent GB-2135940-A (GB)
Title: Semi-rigid inflatable boat
Inventor: HENNEBUTTE GEORGES BERTRAND LE
IPC: B63B7/08
Filed: 1984-01-03
Abstract: The inflatable boat, comprising a hull 1 to which there are fastened two lateral floats 2 forming stabilisers, is characterised in that the hull 1 is in at least three parts 17, 18, normally made fast with one another, for navigation, by fixing and stiffening means, the lateral floats 2 being carried respectively by the said hull parts 17, these being capable of being turned over for the folding of the boat upon itself, about at least one longitudinal axis. <IMAGE>
Patent GB-2153618-A (GB)
Title: Processing of periodic signals
Inventor: DEVEREUX VICTOR GERALD
IPC: H04N9/79
Filed: 1984-02-01
Abstract: The invention halves the sample rate of the input signals and applies low-pass filtering with a response which is symmetrical about zero frequency and skew-symmetrical about frequency fs/4. U and V digital video component signals having the same sample rate fs are received at inputs 10, 12 and alternately supplied to an ao delay circuit 60 and a transversal filter circuit 62 such that each of these circuits receives U and V samples alternately. The transversal filter, in relation to the input sample rate fs, has only odd coefficients and is symmetrical such that a-i = ai. The transversal filter output is combined with the ao term in an adder 64. By routing the ao term through the by-pass delay 60, the filter 62 uses only delays of 2/fs, and U and V terms can be interleaved in alternate sample periods without becoming mixed. Doubling the sample rate and low-pass filtering is achieved by a like transversal filter 68 and ao delay 66 alternately selected by switches S6, S7. Instead of being based on the sample frequency fs the circuit can be based on the line, field or picture repetition signals of an input video signal. <IMAGE>
Patent GB-2156179-A (GB)
Title: Image sensor assembly
Inventor: DANNA DOMINICK
IPC: H04N7/18
Filed: 1984-03-15
Abstract: A compact image sensor package for use in an endoscope or borescope in which a lens system 24, a solid state image sensor 25 and a circuit board 80 are mounted in tandem within a cylindrical sealed housing (27). The assembly is positioned within the viewing head (11) of the instrument so that an image of a given target is recorded on the sensor and an output signal indicative of the image data is transmitted out of the package via either an optical (96, 97) (fig 5) or electrical 81 transmission line. <IMAGE>
Patent GB-2141524-A (GB)
Title: Sectional valve with independent pump and function control spools
Inventor: WILKE RAUD ARTHUR
IPC: F15B11/00
Filed: 1984-06-05
Abstract: An hydraulic sectional control valve includes separate pump and function control spools 52, 54. The spools 52, 54 may be actuated independently and sequentially to provide raising, holding, power down and floating functions for earthmoving and construction vehicles. Additional function control spools 55, 56 may be added in the valve structure to provide multiple function control. <IMAGE>
Patent GB-2153749-A (GB)
Title: Stabilized jack-up mobile offshore drilling platform
Inventor: CHOATE KENNETH PAUL
IPC: E02B17/02
Filed: 1984-06-18
Abstract: A jack-up mobile offshore drilling platform includes a hull 15 having a deck 14 and spaced openings 20 through the hull adjacent the edge of the hull. Legs 25 extend through the openings and jack means 30 engage with the legs to lower the legs onto the submerged surface whereby the hull may then be elevated on the legs above the water. Compartments 40 are formed and mounted on the deck 14 of the hull 15 to surround each leg 25 with the compartments being closed to provide buoyancy compartments for increasing the range of stability of the drilling platform. <IMAGE>
Patent GB-2200106-A (GB)
Title: Transparent materials capable of exhibiting birefringence
Inventor: WHATMORE ROGER WILLIAM
IPC: G02F1/00
Filed: 1984-07-05
Abstract: A transparent material capable of exhibiting birefringence comprises a transparent polycrystalline form of a compound having the general formula: Pb (Mg 1/3 R 2/3)1-xTix03 where: R represents Niobium or Tantalum; and x is a molar fraction between 0.05 and 0.25 inclusive. The transparent material may contain impurities and may be incorporated into an electro-optic device, the material being located in the optical path 2 of the device between a polariser 3 and an analyser 4. The transparent material may have a pair of electrodes 7, 8 disposed on opposite surfaces thereby to enable an electric field to be established through the material and across the optical path 2.   <IMAGE>
Patent GB-2146546-A (GB)
Title: Filter for a washing machine water pump
Inventor: URIARTE JAVIER ERRASTI
IPC: D06F39/10
Filed: 1984-08-28
Abstract: A filter is combined with a pump in such a way as to provide cavities for entrapment of large foreign bodies. The filter itself is a unitary plastics rotatable device with a cylindrical extension 9, a frusto-conical portion 13 and vertical ribs 14 defining spaces between them. The sum of the areas of these windows equals the area of an aperture 16 in the bottom of the filter. <IMAGE>
Patent GB-2148941-A (GB)
Title: Improvements in and relating to steel castings
Inventor: WILLIAMS KEITH ROYSTON
IPC: A61K6/04
Filed: 1984-09-17
Abstract: A titanium nitride steel particularly suitable for use as a partial denture mounting is formed by casting steel stock and then producing a dispersion of nitrided or hydrided titanium. For this process the steel stock with the titanium dispersed therein is melted in a furnace in an atmosphere of an inert gas and the molten metal is introduced into a mould to form a casting having portions of thin section. The casting is removed from the mould after cooling, and the titanium is then nitrided or hydrided by passing nitrogen or hydrogen gas over the casting at high temperature within a furnace. Other reactive elements namely molybdenum, aluminium or zirconium may be used instead of the titanium. The nitrided titanium thin section portions of the steel present a high elastic limit and good toughness which is particularly suitable for parts of a denture mounting which may be subjected to regular flexing.
Patent GB-2165551-A (GB)
Title: Production of synthesis gas
Inventor: JACOMETTI JACK
IPC: C01B3/36
Filed: 1984-10-10
Abstract: Process for the production of synthesis gas with an increased H2/CO-ratio from normally gaseous hydrocarbons comprising the following steps:   a) at least one normally gaseous hydrocarbon is converted into a synthesis gas comprising H2 and CO by partial oxidation with an oxygen-containing gas; b) at least one normally gaseous hydrocarbon is converted with steam into a gaseous mixture comprising H2 and CO; c) the gaseous mixture comprising H2 and CO, formed in step (b) is separated into a CO-containing stream and a H2 stream; d) the H2/CO-ratio of the synthesis gas produced in step (a) is increased by adding at least part of the H2 stream obtained in step (c) thereto.
Patent GB-2151669-A (GB)
Title: Bleach-stable deodorant perfume
Inventor: HAGEMANN ALFRED AUGUST WILHELM
IPC: C11D3/39
Filed: 1984-12-20
Abstract: A bleach-stable deodorant perfume comprising bleach-stable deodorant perfume components which are judged to be stable in the presence of sodium perborate tetrahydrate and N,N,N'N'-tetraacetyl ethylenediamine (TAED) according to the Bleach Stability Test, the bleach-stable deodorant perfume having a Malodour Reduction Value of from 0.25 to 3.0 as measured by the Malodour Reduction Value Test. Bleaching compositions and detergent products containing the bleach-stable deodorant perfume are also provided.
Patent GB-2157192-A (GB)
Title: Method of purifying exhaust gas
Inventor: KOBAYASHI YOSHIO
IPC: B01J20/28
Filed: 1985-03-18
Abstract: A method of purifying an exhaust gas characterized by dispersing individually independent fine particles of a Ca-type absorbent in a carrier gas to a high concentration by a dividing-dispersing device to which the carrier gas and the absorbent are supplied, the absorbent being up to 10 microns in mean particle diameter, introducing the resulting aerosol of high concentration into the exhaust gas to uniformly mix the aerosol with the exhaust gas and thereafter introducing the exhaust gas into a dust collector, whereby the fine particles of absorbent absorbing harmful acid substances from the exhaust gas are removed together with dust and soot. The absorbent forming secondary agglomerates before reaching the dividing-dispersing device are divided into individually independent primary particles and then dispersed in the carrier gas by the device, so that when introduced into the exhaust gas, the absorbent reacts with the harmful acid substance over an increased area of contact to achieve an improved removal efficiency.
Patent GB-2162878-A (GB)
Title: Lintels
Inventor: WILLIAMS IEUAN
IPC: E04C3/02
Filed: 1985-08-06
Abstract: A lintel is made from two steel sheets 10, 12 each providing a horizontal flange 18, 30 for supporting outer and inner skins of a wall. From the flanges extend upright walls 20, 32 defining a downward opening channel. The upper portions 22, 34, 36 of the walls 20, 32 are formed and welded to each other to provide a box section. Wooden blocks 42 may be provided in the channel mouth, and a layer of mesh 52 secured to the blocks and the inner flange 30 to provide a key for plaster. This construction provides high rigidity with minimum use of steel, and avoids having a welded joint exposed to the weather. <IMAGE>
Patent GB-2163531-A (GB)
Title: Apparatus for use in dispensing beverages
Inventor: LITTLE WILLIAM
IPC: B67D1/14
Filed: 1985-08-06
Abstract: A beer dispenser has an initial valve (28, 29) and a final valve (16, 19) which are opened successively as an operating handle (40) is moved from a vertical off position, in which both valves are closed, to a horizontal position in which both valves are open. In an intermediate position of the handle only the initial valve is open, and this provides a restricted flow of beer causing the production of a head of beer prior to the dispensing of the final valve of the bulk of a glass of beer, and this ensures that a predetermined head is produced for each operation of the handle. The initial valve may be a spool valve (28, 29), Fig. 1, or a disc valve (42, 43), Fig. 3, and in both cases the valve member (25; 42) of the initial valve is slidably housed within the valve member (17) of the final valve and controls a by-pass passage (31; 44) in that valve member. <IMAGE>
Patent GB-2185937-A (GB)
Title: Credit card
Inventor: O'SHEA MICHAEL ANTHONY
IPC: G07C9/00
Filed: 1986-01-11
Abstract: A credit or similar card incorporates a computer-produced image k of the m thumb or finger print of the authorised holder, together with a finger print reader m. When a transaction is to be verified a finger or thumb is applied to the reader, operating a pressure sensitive switch which causes the print to be compared with that held in the card. If there is a satisfactory match the processor 5 causes the holders account number or personal identification number to be shown on a liquid crystal display on the card. <IMAGE>
Patent GB-2185846-A (GB)
Title: Ring laser
Inventor: MCNAUGHT WILLIAM GILLIES
IPC: H01S3/083
Filed: 1986-01-24
Abstract: A ring laser comprises a block (10) of dielectric material in which are formed a number of passages (11) defining a polygonal path enclosing a gaseous active medium. Two electrodes (16) are arranged external to the passage parallel to and on opposite sides of part or all of at least one of the passages (11). In operation the electrodes (10) are capacitively coupled to the gaseous active medium to produce an electric discharge therein transverse to the direction of the passage by the application to electrodes (16) of a high-frequency alternating voltage. <IMAGE>
Patent GB-2186004-A (GB)
Title: Reducing photoyellowing
Inventor: LEWIS DAVID MALCOLM
IPC: D21H25/06
Filed: 1986-01-30
Abstract: A method of reducing photo yellowing in substrates susceptible to photo yellowing, for example cellulosic materials such as wood or paper and textile fibres such as wool, comprises treating the substrate with a solution of zinc sulphoxylate formaldehyde and irradiating the treated material in the wet state with ultraviolet light. The amount of zinc sulphoxylate formaldehyde used is preferably from 0.5% to 10% by weight and the ultraviolet light is preferably of a wave length of 350 nanometers, the irradiation being conducted for 2 to 48 hours.
Patent GB-2186499-A (GB)
Title: Walking aid
Inventor: DAILY KEVIN
IPC: A61H3/04
Filed: 1986-02-18
Abstract: A safety walker comprises a body comprising a front wall (1) and opposed side walls (2) which are spaced apart to leave a rear opening into the body, front and rear wheels (10,11) attached to the body such that the walker is stable in use, a braking arrangement associated with the rear wheels, a rail arrangement (5,15) for each side wall which angles upwardly from the rear end of its side wall to an intermediate point along the sidewall and a handle arrangement (16,17) towards the front of the walker. The braking arrangement (Figure 6) is operated by the weight of the user, the wheels being mounted on telescopic supports (12) and acted upon by brake pads (14). The arrangement is such that whilst the user is trying to lift himself into a standing position within the walker, he will exert some downward pressure on the rail arrangement to cause the brake arrangement to be activated to hold the walker still, whereas when in a standing position with the user grasping the handle arrangement the pressure he exerts does not activate the brake arrangement thereby permitting the walker to move freely. <IMAGE>
Patent GB-2190359-A (GB)
Title: Container assembly
Inventor: WONG KAM SHING
IPC: A01G9/02
Filed: 1986-05-12
Abstract: In an assembly of containers (such as a flower pot assembly) each container comprises a flat supporting surface and two walls, contiguous therewith and extending substantially at right angles thereto, which walls comprise connecting surfaces, which connecting surfaces are substantially flat and extend normally with respect to the plane of the base. Connecting means such as spring clips 18 are provided for connecting adjacent containers. Several types of connection means are envisaged, such as spring-clips, U- shaped clips and press-fitting connection surfaces and separate base members 6 may be positioned below the containers and serve to collect water draining from the containers. <IMAGE>
Patent GB-2176467-A (GB)
Title: Security closure for bottles
Inventor: BATTEGAZZORE PIERO
IPC: B65D49/00
Filed: 1986-05-13
Abstract: A security closure for bottles (2), which ensures the desired security even when subjected to the joint action of heating and pulling to remove it fraudulently, includes a pourer (5), a non-return valve in the pourer, a band (8) coaxial with the pourer for retaining the pourer on the bottle, a plurality of tongues (26) on the band for snap-engagement in a groove (29) in the neck (4) of the bottle, and a stopper cap (11) coupled with the pourer and connected to the band by rupturable links (14), the tongues (26) being formed integrally with a ring (21) of heat-resistant material which is housed in an annular groove (17) formed in the band and is retained axially in the groove. <IMAGE>
Patent GB-2191529-A (GB)
Title: Window frame
Inventor: HOELLRIGL ROBERT FRIEDRICH
IPC: E06B1/64
Filed: 1986-06-14
Abstract: A window frame assembly 11 provided with a peripheral connector extrusions 16 which locate L-section press-in gap-closing extrusions 30, 31 to close a space at any predetermined angle between the assembly and a building structure. <IMAGE>
Patent GB-2178997-A (GB)
Title: Screw for a molding machine
Inventor: ESHIMA MITSUAKI
IPC: B29C48/67
Filed: 1986-07-10
Abstract: A screw S adapted for a molding machine, preferably an injection molding machine comprises a feed zone F, a compression zone C and a metering zone M disposed in this order from a material resin inlet 51. The metering zone M is provided with a mixing portion 53 of plunger type, the mixing portion 53 being provided with a plurality of grooves 54, 55 consisting of two groups arranged alternately around the mixing portion 53, each groove having two ends, one open and the other closed, adjacent grooves being unable to communicate with each other. The screw S is also provided on the outer peripheral surface with a main flight 52 arranged spirally throughout the three zones F, C, M and a sub-flight 56 arranged spirally along a portion of the compression zone C and/or the metering zone M, the sub-flight 56 having a height lower than that of the main flight 52 by 0.2-1.0 mm. A slightly modified screw is shown in Figure 7, (not shown). <IMAGE>
Patent GB-2179698-A (GB)
Title: Improved swivel brackets for collapsible structures
Inventor: DYER DAVID CHARLES
IPC: E05D7/08
Filed: 1986-07-31
Abstract: A swivel bracket (10) comprises a channel-section head (12) attached non-rotatably to a stem (11) and allows two components, one (24) attached to the bracket (10) by the stem (11) and the other (23) being partly embraced by the head (12), to undergo mutual relative sliding and/or turning movement. <IMAGE>
Patent GB-2184681-A (GB)
Title: Pharmaceutical tablet press control mechanism
Inventor: LEWIS DAVID ALLAN
IPC: B30B11/00
Filed: 1986-03-26
Abstract: Control and monitoring instrumentation for a high speed double rotary tablet press mechanism. Each tablet press side has strain gauges producing signals indicative of tablet compression. The strain gauge generates control signals received by a peak detector, which holds the maximum strain signal. The peak signals are converted to digital and provided to a microprocessor that first controls operation of the reject gate and regulates tablet consistency by controlling powder fill into the dies, and second, passes information to RAM. The RAM is shared by a master CPU, clocked 180<o> out of phase with the microprocessor. The master CPU produces either a CRT or printed output of both raw and statistically abstracted tablet press data.
Patent GB-2189849-A (GB)
Title: Ball bearing cages
Inventor: ASCHERON EBERHARD
IPC: F16C29/06
Filed: 1987-02-19
Abstract: A linear ball bearing assembly with a cage (2), preferably of a moulded material, which is constructed of two like parts and is protected against axial displacement by means of side rings (5) snap fitted into peripheral grooves (7) in an outer ring (1) and against twisting in the circumferential direction by appropriately formed retaining lips (4) which cooperate with return tracks (8) for the balls. <IMAGE>
Patent GB-2202183-A (GB)
Title: Gasket laminate
Inventor: GEE COLIN
IPC: B32B15/04
Filed: 1987-03-20
Abstract: A flat gasket is produced by cutting a desired gasket shape from exfoliated graphite foil reinforced by a metal core not more than 25 microns thick, the ratio by volume of core to graphite in the composite graphite foil being at least 1:100, followed by laminating at least two such shapes to produce a relatively thick gasket. Preferably three shapes are laminated together to produce a single gasket. Nickel foil of thickness 4-25 microns is particularly preferred as a reinforcing core.
Patent GB-2189567-A (GB)
Title: Scraping pipes
Inventor: TASKER BRUCE ALLAN
IPC: B24B9/00
Filed: 1987-04-27
Abstract: The invention describes a tool for operating on end portions of pipes for example a pipe scraper for scouring end portions of plastics pipes ready for welding to a pipe connector, comprising a support frame (2) mountable on the end portion of a pipe (24) means for moving the support frame in a circumferential path around the end portion of the pipe (24), and scraper means (l4) mounted on the support frame (2) for removing a portion of the outer surface of the pipe as the support frame travels its circumferential path around the pipe. In order to provide for a helical movement of the scraper means around the pipe wall, there are also provided means for progressively moving the scraper means (l4) longitudinally of the support frame and pipe as the support frame travels its circumferential path around the pipe.