baber/WOPTO huggingface dataset:
Patent GB-2449408-A (GB)
Title: Refrigeration systems
Inventor: GUMMER BENEDICT
IPC: F25B47/02
Filed: 2007-03-12
Abstract: A plug-in refrigerator cassette 4, 5 for cooling a refrigerator cabinet 1 or a refrigerator service cassette for servicing a refrigerator cabinet are disclosed. Each cassette is removably engageable with the refrigerator cabinet and includes a guide means 10 to guide the cassette into or out of engagement with the refrigerator cabinet. Preferably, during engagement of the refrigerator cassette and the refrigerator cabinet the guide means align service connection means, such as electrical connections 8 and fluid connections 9, for connecting the refrigerator cassette to the refrigerator cabinet. The engagement of the refrigerator cassette with the refrigerator cabinet may also actuate a switch 15 to control a supply of electricity to the cassette. Preferably, the guide means comprise a resilient spring mounted wheel 11 connected to the cassette for cooperation with a guide rail 12, where the wheel is engageable in a depression 13 in the guide rail for positively connecting the cassette to the cabinet. A locking mechanism 14 may also be provided for locking together the cassette and the cabinet. An apparatus and method for defrosting a refrigerator by means of reversing a flow of refrigerant are also disclosed, where the refrigerator comprises a first heat exchanger (17, fig.3A) and a second heat exchanger (18, fig.3A) connected in a refrigerant circuit with a valve (24, fig.3A) arranged to direct a flow of refrigerant through the heat exchangers in a first direction, whereby heat is extracted from the first heat exchanger and transmitted to the second heat exchanger, and a second direction, whereby heat is extracted from the second heat exchanger and transmitted to the first heat exchanger. The second heat exchanger is connected to heat conducting means 2 for transferring heat to or from the refrigerator. Preferably, the heat conducting means comprises a fluid flow loop such as a chilled water loop.
Patent GB-2433130-A (GB)
Title: Device and method for the homogenisation of optical communication signals
Inventor: HUGHES PHILIP THOMAS
IPC: H01L33/60
Filed: 2007-03-28
Abstract: The invention provides a method and apparatus for providing a uniform output from an optical transmitter. The invention comprises at least one discrete light source (30), and a housing (38) defining an internally reflecting volume (42) for light from the at least one light source, the housing having a light exit aperture (46) for light from the at least one light source. The reflecting volume is adapted to produce in an extended image surface multiple reflected images (50) of the at least one light source, and the light exit aperture is arranged to emit light from the multiple reflected images. An output lens (48) is employed in front of the light exit aperture for controlling the angular distribution of the light emitted from the at least one light source and the multiple reflected images by way of the light exit aperture.
Patent GB-2448370-A (GB)
Title: When decoding a PDU, a data stack is used to record the number of bits which have still to be decoded.
Inventor: MITCHELL KEVIN
IPC: G06F9/30
Filed: 2007-04-14
Abstract: In the field of data communications, it is desirable to track bits of a bit sequence remaining to be decoded by a decoder. A method of decoding the bit sequence that corresponds to a protocol data unit (PDU) comprises reading-in a bit sequence and processing the bit sequence. In order to maintain a record of the bits remaining to be processed, a data stack is used during decoding of the bit sequence. Also disclosed is a "PDU specification language toolkit" which includes a compiler for generating machine executable code to perform decoding of PDUs, The compiler uses a stack tracking library when generating the machine executable code, the stack tracking library comprising code implementing a set of operations to manipulate a stack for tracking sizes / lengths of PDUs being decoded.
Patent GB-2448758-A (GB)
Title: A switching power converter with reduced collector dv/dt
Inventor: LALITHAMBIKA VINOD A
IPC: H03K17/0422
Filed: 2007-04-27
Abstract: The rate of change of the collector voltage of the main power switch 208 in a switching converter is limited by a feedback circuit which reduces the base drive current. The slope of the collector voltage waveform is sensed by a capacitor 400 coupled to the small resistance of a switch 406 in a driver IC. Limiting dv/dt at turn-on reduces capacitive load charging transients which could be mistaken for overload currents. Limiting dv/dt at turn-off reduces RFI and decreases voltage transients which could cause damage. The switch 406 shorts out a second capacitor which divides the voltage sensed by capacitor 400 during operation of a feedback saturation control circuit (figure 4). Limiting dv/dt at turn-on reduces current flowing through the small switch 406 and the earth pin of the control IC. The rate of change of the collector voltage may alternatively be controlled indirectly by feedback regulation of the collector current (figure 33). The charge storage time of a BJT or IGBT may be measured and used to vary the base or gate drive in subsequent cycles (figures. 35 and 36).
Patent GB-2437470-A (GB)
Title: Multi-motor switched reluctance traction system
Inventor: ADRA RODWAN T
IPC: H02P25/08
Filed: 2005-12-12
Abstract: A switched reluctance traction system (110-1 to 110-4) is provided for work machines (100). The switched reluctance traction system may include a plurality of switched reluctance motors (202-1, 202-2). Each switched reluctance motor may include a stator with a plurality of stator poles (702-1, 702-2, 704-1, 704-2, 706-1, 706-2, 708-1, 708-2, 752-1, 752-2, 754-1, 754-2, 756-1, 756-2, 758-1, 758-2) and a rotor (712, 714) with a plurality of rotor poles (710-1 to 7104, 720-1 to 720-4). The switched reluctance traction system may also include one or more coupling elements (206) to couple together the plurality of switched reluctance motors such that each of the plurality of motors is capable of driving the switched reluctance traction system independently.
Patent GB-2458270-A (GB)
Title: Retaining wall system and support
Inventor: GARBUTT JUSTINE
IPC: E02D29/02
Filed: 2008-03-10
Abstract: A retaining wall support 2 includes a base member 10, a wall supporting post 8 and at least one helical pile 12 attached to the base member 10. Alternatively two helical piles 12 may be use where both are attached to the base member 10 and the second pile is fitted at an angle to the first. The base members 10 may face away from (fig.3) or protrude into (fig.2) the ground formation being retained. A retaining wall system includes a plurality of such supports 2 with sheet panel wall 4 and floor elements connecting adjacent wall supports 2. The panel wall and floor elements may be solid or mesh.
Patent GB-2460675-A (GB)
Title: Insulated bag for ice storage
Inventor: JONES JUDITH ANN
IPC: B65D81/38
Filed: 2008-06-04
Abstract: An insulated bag 1 for storing ice, where the bag comprises an inner layer 8 of air cellular sheet material, an outer layer 10 of air cellular sheet material, and a barrier sheet 9 between the inner and outer layers of air cellular sheet material. The bag is provided with a sealable opening 6 for inserting and removing ice from the bag. The air cellular sheet material may comprise entrapped air cells or bubbles. Preferably, one side of the air cellular sheet is flat and the other side comprises an array of protuberances formed by the entrapped air cells, where the non-flat sides of the sheets abut the barrier sheet. The barrier sheet may be formed from paper such as Kraft paper. Preferably, the sealable opening comprises a closure or seal, such as a plastic zip fastener or a thistle cloth hook and loop fastener, where the opening may be resealed following removal of contents from the bag.
Patent GB-2447183-A (GB)
Title: Superconducting quick switch
Inventor: DEIDERICHS JOST
IPC: H01F6/00
Filed: 2007-01-05
Abstract: A magnet system for generating a magnetic field may include a superconducting magnet, a switch, and a healer element thermally coupled to the switch. The superconducting magnet is structured to generate magnetic fields, and the switch includes a non-inductive superconducting current carrying path connected in parallel to the superconducting magnet. In general, the switch is structured to only carry a level of current that is a portion of the current required to obtain a full field by the superconducting magnet.
Patent GB-2462289-A (GB)
Title: Electronic book
Inventor: STONE KATE JESSIE
IPC: B42D1/00
Filed: 2008-07-31
Abstract: A printed circuit sheet 17 is incorporated into the pages of a book. Each page of the book consists of a laminate of two or more sheet portions together with the printed circuit sheet. The printed circuit sheet comprises a substrate having first and second portions 20, 21 with conductive tracks which run from the first to the second portion to fingers 25. Each finger supports an electronic device for providing user input and/or output. For example, a switch, a led, a display or a sound emitting device. Each finger of the printed circuit sheet is inserted into a respective page in between the sheet portions. Alternatively, the conductive tracks 28 may be printed on both sides 26,27 of the sheet so as to allow switches and light emitting diodes to be provided on opposite sides of the same page. Alternatively, the printed circuit sheet may have an additional set of fingers extending in an opposite direction to fingers 25.
Patent GB-2462878-A (GB)
Title: Pedal powered propulsion unit for an aircraft
Inventor: SWEET-ESCOTT RUPERT JOHN BICKHAM
IPC: B64C31/04
Filed: 2008-08-26
Abstract: The propulsion unit 10 includes attachment means 21 for attaching the unit to a wing (hang-glider type or rigid) and a pedal powered drive mechanism 13 with a propeller 20 for providing propulsion in the slipstream of a pilot in a prone position. The pilot is pivoted in and out of the prone position by means of a pivot 24.
Patent GB-2453828-A (GB)
Title: A bib for weaning which restricts arm movement
Inventor: BRETT LAURA
IPC: A41B13/10
Filed: 2008-09-18
Abstract: A bib 2 with body portion 4, neck portion 10 and shoulder portions 6 and 8. The shoulder portions prevent the wearer's hands touching his face. The shoulder portions preferably extend beyond the wearers shoulders, they can be detachable or integral with the body portion, they may extend downwards with and/or hinge relative to the body portion. The neck portion preferably abuts the wearer's neck and may form a collar made of soft material for comfort, it may have an opening with male/female fasteners for donning and removal. Ideally the body portion extends fully across the wearer's body and a tray section is formed at the bottom. The bib can be made of hard plastic, eg polypropylene or polyethylene, or another resilient material. The bib can be used during weaning to prevent an infant touching food in his mouth; or when feeding hospital patients or people with special needs.
Patent GB-2457362-A (GB)
Title: Automatic cleaning of MALDI ion sources
Inventor: HOLLE ARMIN
IPC: H01J49/16
Filed: 2009-02-04
Abstract: The invention relates to the automatic cleaning of ion sources for the generation of ions by matrix-assisted laser desorption (MALDI). The invention provides instruments and methods for automatic cleaning of the acceleration diaphragms 3 and 4 of the ion source in a mass spectrometer, which are contaminated by matrix material, by temporarily heating them up. The sample support plate 1 is moved aside but remains in the ion source housing, and the heating is preferably limited to the region around the apertures 19 and 15 through which the ion beam has to pass. A preferred heating method uses infrared laser diodes 17, but use of resistive or inductive heating is also envisaged. At least one of the acceleration electrodes 4 may have a ring of holes 14 and 16 around the aperture 15 for the passage of the ion beam so as to thermally insulate an inner region of the electrode from an outer region.
Patent GB-2475546-A (GB)
Title: An exercise device with an extendable pole and 2 elastic ropes
Inventor: WOOLDRIDGE DAVID
IPC: A63B21/055
Filed: 2009-11-23
Abstract: A portable gym comprising an extendable pole 101 and two elastic ropes 118 wherein each elastic rope 118 has one end attached to the pole 101 and a stirrup 120 mounted to the other end. The stirrup 120 acts as a handle during use. The pole 101 may have clamps 106 at either end to allow it to be mounted to a door. The elastic ropes 118 may be attached to the pole 101 through the use of clips 114 which sit in corresponding grooves 110. There may be more than two grooves 110 on the pole 101 to allow the ropes 118 to be mounted in different positions. The grooves 110 may be arranged to move along the pole 101 and a variety of ropes 118 may be used for different exercises.
Patent GB-753624-A (GB)
Title: Improvements in or relating to the reduction of iron ores by carbon and steam and plant for carrying them into effect
IPC: C21B13/02
Filed: 1954-04-06
Abstract: 753,624. Reducing iron ore. ATELIERS DES CHARMILLES SOC. ANON. April 6, 1954 [April 9, 1953], No. 10012/54. Class 72. A process for the reduction of iron ore by hydrogen and carbon monoxide in a shaft furnace comprises adding to the bottom of the furnace, containing ore and carbon, a mixture of carbon monoxide and hydrogen produced by the reaction of steam and carbon, and supplying to the reduction zone additional water vapour, the necessary temperature being maintained by electric induction heating. As shown, a vertical shaft furnace body I has an electric induction heater T extending through it transversely to its axis, forming a reduction zone, a preheating chamber 5 being provided above the reduction zone and a cooling zone 6 and discharge means 10 below the reduction zone. Steam is led into the reduction zone through one or more pipes 7 and the gases from the reduction zone preheat the ore and carbon in the chamber 5, are drawn off through a pipe 8 to a cooler 13 and a washer 14 to remove carbon dioxide and the residual carbon monoxide and hydrogen pass into the cooling chamber 6 where they are preheated.
Patent GB-331274-A (GB)
Title: The manufacture of materials resistant to or active against micro-organisms
IPC: A23L3/3517
Filed: 1929-03-28
Abstract: 331,274. Carpmael, A., (Sabalitschka, T., and Nõhrmittelfabrik, J. Penner Akt.-Ges.). March 28, 1929. Antiseptics; fungicides.-An ester of m- or phydroxybenzoic acid, the alcoholic portion of which contains two or more carbon atoms, or a mixture of such esters, or a mixture of one or more of such esters with the corresponding methyl ester, is incorporated as a preservative with materials liable to decomposition by microorganisms. Mixtures of the esters with a suitable substance may be employed as bactericidal preparations. Compounds specified are the ethyl, n-propyl, isopropyl, n-butyl, amyl, and benzyl esters of m- and phydroxybenzoic acids. These esters or mixtures thereof may be used in very small proportions to prevent development of moulds, yeasts and bacteria in malt extract, fruit juice or pulp, glue, and photographic gelatine. The isopropyl and nbutyl esters of phydroxybenzoic acid may be prepared by esterification of the acid with the corresponding alcohol; the benzyl ester is obtainable from sodium phydroxybenzoate and benzyl chloride.
Patent GB-949211-A (GB)
Title: Improvements in flooring blocks
Inventor: SMITH WILLIAM HERBERT
IPC: E04B5/19
Filed: 1959-03-23
Abstract: 949,211. Concrete floors. TRIANCO Ltd. March 23, 1960 [March 23, 1959], No. 10035/59. Heading E1V. A floor comprises parallel rows of hollow blocks 1 abutting end-to-end, each end face being rebated at 17 whereby transverse grooves are defined between adjacent blocks, the rows of blocks being spaced apart by bar spacers 19 to define T-shaped channels 18 between adjacent rows, reinforcing rods 21 being supported on the spacers 19, and concrete being cast in the T-shaped channels 18 and transverse grooves.
Patent GB-1369967-A (GB)
Title: Winding coils
IPC: H01F41/10
Filed: 1973-03-01
Abstract: 1369967 Twisting wires together MICAFIL AG 1 March 1973 [1 March 1972] 10058/73 Addition to 1063429 Heading B3E A method of winding wire 2, Fig. 1, on to a core 15 to form a coil, e.g. an electrical coil, comprises feeding the wire from a wire supply 1, winding the fed wire on to the core, directing the wire from the supply over spaced support members 16, 17 to form a strand comprising a plurality of side-by-side loops, rotating a further member 62 relative to both ends of the strand held by the members so as to twist the strand to form a strengthened end 66, Fig. 2, for the coil, and severing the wire to separate the formed coil from the wire supply. The support members comprise a fixed hook 16 and a hook 17 which is axially displaceable, adjustment being provided by spring 64 and set screw 65, during the twisting. An arm 62 has a finger 63 situated within the loops of the strand so that upon rotation of arm 62, by gear-wheels 60, 61, about the axis of the strand, the latter is twisted. The twisted bundle of wire may be released using a stripper bar 45 attached to a rod 42 upon actuation of cylinder 41.
Patent GB-927011-A (GB)
Title: Fluid metering device
IPC: C02F1/68
Filed: 1959-03-24
Abstract: 927,011. Mixing fluids in flow. D. LAING, and J. D. JONES. March 16, 1960 [March 24, 1959], No. 10071/59. Class 86. In a device for supplying a small controlled proportion of an additive, e.g. a fluoride, to a main fluid, e.g. water, flowing in a conduit 12, the additive is contained in a flexible bag 22 subjected externally to the pressure of fluid in the space 28 which is in communication through the passage 30 with the high-pressure P1 side of a pressure differential orifice 19 in the conduit 12. The additive is expelled through a flexible non-return valve 58, a sinuous passage 44, and a groove 62 in a valve spindle 60, into the conduit 12 on the low-pressure P2 side of the orifice 19. The passage 44 has such cross-section and length that flow of the additive therein is laminar at the working pressure and takes place at a rate substantially proportional to the pressure-differential P1/P2 across the orifice 19; as shown, it is a helical groove resembling a screw-thread. The orifice 19 is formed in an annulus of resilient material which flexes, see Fig. 4 (not shown), so that the rate of flow of the main fluid through it is also proportional to the pressure-differential P1/P2. For a given range of mains pressures, an additional rearlinear flow restrictor 29 limits the pressure differential at the orifice 19 to a maximum which is within the range for linear operation. The valve spindle 60 is attached to a piston 70 and flexible diaphragm 82 biased by a spring 72 so that when the pressure falls below the minimum value for linear working, the groove 62 is occluded. When sufficient flow takes place in the conduit 12, fluid from the P1 side of the orifice 19 acts on the piston and diaphragm through passages 74, 76, raising the spindle 60 and placing groove 62 in communication with the conduit 12. If the shut-off valve in conduit 12 be downstream of the apparatus, the latter is modified so that the upper side of the piston and diaphragm is subjected to pressure P2 in addition to that of the spring; when flow is stopped, P2 becomes equal to and balances P1 and the spring closes the valve as before.
Patent GB-313072-A (GB)
Title: Treatment of films, spun threads and fabrics made of or containing cellulose esters or ethers
IPC: D06M13/165
Filed: 1929-03-28
Abstract: 313,072. Soc. pour la Fabrication de la Soie Rhodiaseta. June 6, 1928, [Convention date]. Yarns and threads, treating with liquids. - Artificial silks made from cellulose esters or ethers, are delustred and rendered opaque by treatment with aqueous emulsions or suspensions of substances having a solvent or swelling action on the cellulose ester or ether, the concentration being below 5 per cent, and the temperature of the treatment lower than the boiling temperature, say 40-80‹ C. According to conditions, the dulling may take place throughout the substance of the filaments, or at their surface only. The dulling may be carried out simultaneously with the removal of grease or size, or even during dyeing. Suitable swelling-agents or solvents are cyclohexanone, cyclohexanol, acetins, methyl phthalate, amyl acetate, ethyl benzoate, ethyl acetylacetate, benzyl alcohol, anisol, phenetol, nitroanisols, nitrophenetols, nitrobenzene, guaiacol, benzaldehyde, and salicylic aldehyde. Substances which readily emulsify with water, are preferred; but others may be employed provided soap or other emulsifying agent is added to the bath. In examples, cellulose acetate materials are dulled by treatment at a raised temperature with baths containing cyclohexanone: nitroanisol and Marseilles soap : monopol soap, guaiacol and rhodamine B : benzaldehyde, sodium sulphoricinate, acetoquinone blue and carmin blue M.C.A.; in the last two cases dulled and dyed products being obtained.
Patent GB-594330-A (GB)
Title: Coating compositions
IPC: C09D127/06
Filed: 1945-04-23
Abstract: Decorative and protective coating compositions are prepared by grinding 1 part by weight of a vinyl resin containing polymerized vinyl chloride with from 2 to 4 parts of a volatile liquid capable of swelling the resin at room temperature sufficient to prevent settling, but insufficient to form a complete solution. Preferably, the volatile liquid consists of 1 part of an active solvent for the resin and 2-50 parts of a diluent miscible therewith.  Specified solvents are cyclohexanone, isophorone, methyl ethyl ketone, methyl amyl ketone, dioxane, acetone, isopropyl acetate, butyl acetate, dibutyl phthalate, di-(butoxyethyl) phthalate, tricresyl phosphate, mesityl oxide, methyl isobutyl ketone and ethoxy-ethyl acetate; diluents are xylol, toluol, naphtha, hydrogenated naphtha, the methyl, ethyl and butyl ethers of ethylene glycol, tetrahydronaphthalene, ethyl alcohol and water (provided the solvent is water miscible in the proportions used).  Vinyl resins which may be used include polyvinyl chloride, after-halogenated polyvinyl chloride and copolymers of vinyl chloride and vinyl esters of the lower aliphatic acids or alkyl esters of a -b -unsaturated acids. The compositions may contain plasticisers and stabilizers, e.g. diphenylol propane-formaldehyde, urea - formaldehyde and amino - triazineformaldehyde condensation products, phospholipids, e.g. cephaline, lecithin, and organic lead salts or soaps. Coloured compositions are prepared by the use of pigments, dyes and fillers. Surfaces may be coated (see Group VIII) and baked, e.g. at between 280 DEG  and 400 DEG  F.  In applying multiple coatings each is separately baked.  Suitable substrates are metal, e.g. steel, tinplate, black iron, fabrics, paper, cellulosic sheet material, wood, wallboard and glass.  The compositions alone or together with other resinous materials may be used as adhesives, e.g. in the manufacture of laminated materials.
Patent GB-1140496-A (GB)
Title: Adjustable throat-armour for shaft furnaces
IPC: C21B7/08
Filed: 1967-03-03
Abstract: 1,140,496. Blast furnace charging devices. BETEILIGUNGS- und PATENTVERWALTUNGS G.m.b.H. 3 March, 1967 [5 March, 1966], No. 10242/67. Addition to 1,018,690. Heading F4B. The adjustable blast furnace throat-armour of the parent Specification is modified by having alternate overlapping segments 2, 3 formed of smooth and stepped constructions respectively, so that a substantially smooth cylindrical inner surface to the throat-armour is provided, when the throat armour is set at its minimum diameter.