baber/WOPTO huggingface dataset:
Patent GB-817405-A (GB)
Title: Pre-stressed tennis or like racquet
Inventor: DEVINE ALEXANDER ROBERT JOHN
IPC: A63B49/10
Filed: 1956-10-29
Abstract: 817,405. Laminates and laminating. TWEEDIE, R. Jan. 3, 1958 [Oct. 29, 1956], No. 32807/56. Class 140. [Also in Group XV] A frame for a tennis or like racquet is constructed of alternate laminµ of wood and of a metal or alloy having a specific gravity of less than 8, the laminµ being bonded together with a thermosetting resin in such a manner that the metal laminµ are prestressed. As shown, the laminµ of wood 5 and metal 6 are bent round a former 10 by a metal band 11 that passes down between the wooden laminµ 5 and clamping bars 9. This band is anchored at the handle ends of clamping bars 9, and clamping action is provided by screwed blocks 12 moving together to pull band 11 tightly round laminµ 5 and former 10. Each lamina is first coated with a thermosetting resin adhesive and then assembled as shown, the metal laminµ being of a length to project as shown; the clamps are tightened and then loosened slightly. A low-voltage highamperage current is then passed through the metal laminµ until they attain a temperature sufficient to cure the adhesive. The clamps are then tightened and the contraction of the metal laminµ in returning to ambient temperature prestresses the frame.
Patent GB-429107-A (GB)
Title: Device for preparing a mixture of hydrocarbonic substances and of filling materials for spreading on roads
IPC: E01C19/10
Filed: 1933-11-24
Abstract: 429,107. Mixing-apparatus. SOC. ANON. DE TRAVAUX ROUTIERS ET D'APPLICATIONS DES GOUDRONS ET ASPHALTES TRAGA, Libercourt, Carvin, Pas de Calais, and SOC. DE RECHERCHES ET DE PERFECTIONNEMENTS INDUSTRIELS, 87, Avenue Wilson, Puteaux, Seine, both in France. Nov. 24, 1933, No. 32897. Convention date, Nov. 29, 1932. [Class 86] A machine for mixing road materials, consisting of a fluid hydrocarbon and a filler, comprises a tank 1 fitted with a stirrer in the form of a spiral 3 through which steam can be circulated and which is fitted with blades 4. The tank is mounted on a chassis which also carries a boiler 13 and a crane 16 for charging the tank with the filler, the top of the tank having a hopper 10 placed to one side so as to discharge its contents on to the hydrocarbon in the region of the blades 4 as they emerge. The hydrocarbon and mixture in turn are circulated by a pump 14 and can be returned to the tank through a perforated pipe 20 connected to a strainer 12, or through a pipe 21 directly to the strainer. The pipe 21 is pivoted to facilitate discharge of the mixture from the machine.
Patent GB-650160-A (GB)
Title: Improvements in or relating to pest control smoke generators
IPC: A01M1/20
Filed: 1948-12-21
Abstract: 650,160. Pesticide generator. LILLY, C. H., MARKE, D. J. B., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 21, 1948, No. 32973. [Class 81(i)] A pest control smoke generator comprises a cylindrical canister having a dished top with at least one perforation of predetermined dimensions in its dished top, perforations near the top of the cylindrical wall of the canister, a charge of pest control fume composition in said canister up to a height below the perforations in the cylindrical wall, a portion of fuse embedded in said charge and at least one end of a fuse emerging through and beyond a perforation, a tightly fitting unperforated lid fitting into said dished portion and a removable waterproof sealing means covering the perforations in the wall of the canister. As shown, the dished top of a tinplate canister 1 has the outermost portion thereof in the form of a ridge 2a within which is an annular recess 2 surrounding an inner ridge 2b, which limits a central depression forming the greater portion of the top and having a central perforation 4. Apertures 5 are formed in the upper part of the cylindrical wall and may be closed by tear off strips 6. One end of a fuse 8 extends into the mass of an exothermally reacting pesticidal for evolving composition 10, the surface of which is below the apertures 5, and the other end protrudes through the aperture 4 where it is trapped by an unperforated lid 3. A plurality of fuses may be used and one or more ends may emerge through and beyond one or more apertures in the top or wall or both, the emergent end or ends being exposed only when the lid and/ or waterproof sealing means are removed. The pesticidal gas issues horizontally with apertures 5 open and lid on; vertically with apertures 5 covered and lid off; and in both these directions when all apertures are used. Specification 629,669 is referred to.
Patent GB-537277-A (GB)
Title: Improvements in removable lock core
IPC: E05B27/00
Filed: 1939-12-28
Abstract: 537,277. Locks, YALE & TOWNE MANUFACTURING CO. Dec. 28, 1939. No. 33002. Convention date, Jan. 14. [Class 44] In a revolving-barrel lock, the core 13 is retained in the cylinder 10 by a spring detent 22 pivoted on a pin 23 in the core and engaging a slot 26 in the cylinder. It is released by a special key 19 provided with a notch 28 into which the end 25 of the detent enters when the barrel 14 is turned by the key into the position shown in Fig. 3, whereby the detent leaves the slot 26 and permits withdrawal of the core.
Patent GB-1467184-A (GB)
Title: Photoconductive imaging member
IPC: G03G5/00
Filed: 1974-07-26
Abstract: 1467184 Electro-photographic materials XEROX CORP 26 July 1974 [30 July 1973 30 April 1974] 33071/74 Heading G2C An electro-photographic material comprises an electrically conductive support, an anodically formed porous aluminium oxide coating which has been sealed at its surface by forming hydrated aluminium oxide and which is at most 1 micron thick and a photo-conducting layer of amorphous Se and/or Se alloy. Generally the support is Al or Al alloy but a support of an Al layer on plastics or Ni, Cr, Ag, steel or brass may be used and the Al may be anodized with a sulphuric acid electrolyte and the oxide coating sealed by heating using hotwater or steam to form the hydrated aluminium oxide before application of the Se layer. Sealing the Al 2 O 3  layer ensures better adhesion of the Se layer. Se/Ps, Se/Te, Se/Sb and Se/Bi are the specified Se alloys. A protective insulating layer may be coated over the Se layer; this overcoat may contain trinitrofluorenone or polyvinyl carbazole.
Patent GB-896221-A (GB)
Title: Improvements relating to apertured building blocks
IPC: E04C1/41
Filed: 1959-09-30
Abstract: 896,221. Building blocks; walls. GORSKI, K. June 20, 1960 [Sept. 30, 1959], No. 33101/59. Classes 20(4) and 87(1) A building block of structural concrete, with or without an inner layer A of foamed slag aggregate, is provided with vertical channels C, four horizontal grooves D, and at each end of the block with a large central recess F and one or two sealing grooves K. One face of the block may be finished with a plaster slab H. In building a wall using the blocks, rubber, plastic, wood, or metal bars G are placed in the grooves D while two blocks are fitted together and then the bars are withdrawn so as to leave in the channels C and grooves D a continuous air space which in a humid climate may be made open to the atmosphere. A lightweight mortar is used to bind the blocks and the lower part of the wall may be made from blocks of increased width.
Patent GB-961866-A (GB)
Title: Tobacco sheet manufacture
IPC: A24B15/14
Filed: 1961-09-15
Abstract: A method of forming a self-supporting tobacco sheet comprises reducing tobacco to a finely divided state, mixing with the tobacco 2%-30%, based on the weight of the tobacco, of a highly refined fibrous pulp having a Canadian Standard Freeness lower than zero and an aqueous fluid, to form a homogenous dispersion having a solids content of at least 5%, forming a film of the dispersion on a film forming surface which is substantially impervious to the solids content of the dispersion and removing moisture from the film.  The pulp, which may be a soft wood or a hard wood kraft pulp or a soft wood sulphite pulp, preferably, as a Canadian Standard Freeness between (-)50 cc. and (-)900 cc. The aqueous fluid contains a film forming agent which may be a polysaacharide used in amount from 1:20 to 1:1 based on the dry weight of tobacco, or a water soluble cellulose ether.  U.S.A. Specification 2,734,509 is referred to.
Patent GB-1471355-A (GB)
Title: Method of making a compact guard-banded mos integrated circuit device
IPC: H01L29/78
Filed: 1974-07-29
Abstract: 1471355 Semi-conductor devices RCA CORPORATION 29 July 1974 [6 Aug 1973] 33314/74 Heading H1K A method of manufacturing a CMOSFET in an integrated circuit, comprises forming on a surface of a semi-conductor body 12, Fig. 9, of one conductivity type having a surface region of the opposite conductivity type, successive layers including a gate insulation 83, Fig. 2, a refractory conductor 84, and an oxygenimpermeable layer 85, removing portions of the layers 83-85 to leave a diffusion-masking layer comprising frames 86, 90 having crossbars 88, 93 defining openings 89, 94 over the region of one conductivity type and the opposite conductivity type respectively, depositing a solid source (96, 97), Fig. 3 (not shown), of conductivity modifiers on to the body 12 within the two openings in one frame and outside the other frame, and heating the body 12 to diffuse the conductivity modifiers from the solid source (96, 97) while simultaneously exposing the uncovered portions of the surface to a source of conductivity modifiers of the opposite type to those in the solid source (96, 97). The diffusion step forms the source and drain regions of the two FETs as well as guard bands (33, 67), Fig. 7 (not shown), therefor. A bar 95 is formed together with the frames 86, 90, and these are removed to leave at least the cross-bars 88, 93. A thermal silicon dioxide layer 38 is grown so that its surface is substantially co-planar with the cross-bars for supporting crossover conductors 82. Contact openings 46, 48, 76 and 80 are formed for the source and drain regions and the device is metallized by depositing aluminium to form conductors 50, 52, 54, 78 and 82. The semi-conductor may be B or P-doped Si, the gate electrode may be B or P-doped polysilicon, and the masking layers 83-85 may be silicon dioxide, polysilicon and silicon nitride.
Patent GB-1523387-A (GB)
Title: Composition for us in polymerization reactors
IPC: C09D5/00
Filed: 1976-08-12
Abstract: 1523387 Cement-polymer composition B F GOODRICH CO 12 Aug 1976 [25 Aug 1975] 33509/76 Heading C1H A composition comprises Portland cement and an aqueous dispersion of a polymer containing carboxyl groups and having a Tg (i.e. the temperature at which the polymer changes from a rubbery solid to a brittle substance) of less than 40 C. The composition is coated before polymerization on to areas of excessive polymer build-up in the polymerization vessel of vinyl halide monomers of formula CH 2  = CXY where X is Cl and Y is H or Cl. The polymer containing free carboxyl groups may be derived from (i) butadiene, isoprene or C 1-8  alkyl acrylate with an α,#-olefinically unsaturated carboxylic acid containing 3-6 C atoms (e.g. acrylic or methacrylic acid) or (ii) >40wt. per cent alkyl acrylate, an acrylamide and at least one of styrene and acrylonitrile, prepared in aqueous emulsion with less than 1 part per 100 wt. parts of monomer of an emulsifier, suspending or dispersion agent and a persulphate catalyst.
Patent GB-995195-A (GB)
Title: Electromagnetic switching assembly
IPC: H01H51/28
Filed: 1961-09-19
Abstract: 995,195. Electromagnetic relays. C. P. CLARE & CO. Sept. 19, 1961 [Oct. 3, 1960], No. 33556/61. Heading H2B. In a relay having a common winding 18 surrounding a plurality of normally open, sealed magnetic contact devices 14 mounted on a uniplanar insulating panel 12, some of the contact devices are biased closed by permanent magnets 16 mounted in the panel between adjacent sealed contact devices. The panel has a printed circuit on one or both sides which serves to connect the terminals 30, 32 of the sealed contact devices and the terminals of the energizing winding 18 to the power supply. The panel, operating winding, permanent magnets, and sealed contact devices are enclosed in an insulating envelope 20, and part 12a of the panel depends below it forming a plug connector. Mercury-wetted contact devices may replace the magnetic contact devices. The contact units may incorporate pivoted armatures. Specifications 648,656, 792,699, 904,586 and U.S.A. Specifications 2,289,830, 2,519,463 and 2,877,315 are referred to.
Patent GB-452412-A (GB)
Title: Improvements relating to apparatus for cooling the rotors of turbines
IPC: F01D5/08
Filed: 1934-11-22
Abstract: 452,412. Cooling turbine rotors. MARTINKA, M., 7, Schweizerstrasse, Duisburg, Germany. Nov. 22, 1934, Nos. 33640 and 33641. Convention dates, Nov. 25, 1933 and March 31, 1934. [Class 110 (iii)] The rim of the rotor of a turbine, particularly a gas turbine, is impinged upon by cooling-gases, and has incisions e, f to prevent transfer of heat to tho unpierced central part of the rotor. The roots of the blades 3 may be provided with channels 4, Fig. 7, and the blades may have cooling passages 22. Fig. 5 shows an arrangement in which the circulated cooling-medium, which may be oil, is fed to side chambers n, but does not contact with the rotor, a flow of cooling-air being set up in passages o. Several modifications are described.
Patent GB-1529156-A (GB)
Title: Furnace control
IPC: C10G9/20
Filed: 1977-08-11
Abstract: The method and the appliance employ at least two parallel coiled pipes (2, 3, 4, 5); the material stream to be heated and/or to be evaporated flows via the coiled pipes in divided form. The temperature Ti of the material stream is measured at the end of each coiled pipe i (13, 14, 15, 16) and the mean value <IMAGE> is calculated (29), where n denotes the number of coiled pipes. Each of the temperature differences T-Ti (34, 33, 32, 31) is used to generate a signal which controls the material flow (17, 18, 19, 20) through the coiled pipes (2, 3, 4, 5) in question in such a way (25+9, 26+10, 27+11, 28+12), that the temperature difference T-Ti decreases. The highest temperature Timax of all the temperatures Ti is employed to calculate the difference Timax-Ts (30), where Ts denotes the temperature set point of the overall material stream leaving the oven. The calculated difference Timax-Ts (35) is used to generate a signal which controls (23) the generation of heat in the oven in such a way that said temperature difference decreases. <IMAGE>
Patent GB-1396427-A (GB)
Title: Apparatus capable of withstanding high internal pressures and method of manufacturing the same
IPC: B32B15/08
Filed: 1972-07-19
Abstract: 1396427 Laminated vessels SNAM PROGETTI SpA 19 July 1972 [31 July 1971] 33855/72 Heading B5N [Also in Division B1] An apparatus capable of withstanding high internal pressure, comprises a vessel formed of a metallic material, e.g. carbon steel internally lined with a film of polytetrafluoroethylene bonded to the internal surface by means of a phenolic resin adhesive having a thickness less than that of the polytetrafluoroethylene film. The apparatus may be made by : (a) removing grease from the internal surface of the vessel using a suitable solvent, e.g. trichloroethylene, (b) sand-blasting the internal surface of the vessel with corundum to produce a white metal finish; (c) removing grease from the sandblasted surface using a suitable solvent, e.g. trichloroethylene; (d) applying a thin layer of phenolic resin adhesive to the internal surface of the vessel and/or to one surface of the polytetrafluoroethylene film, the total thickness of the layer(s) of adhesive being less than that of the film, and the thickness of the adhesive preferably being in the range from 0À08 to 0À5 mm.; (e) bonding the polytetrafluoroethylene film to the internal metallic surface of the vessel with the aid of the layer(s) of adhesive; (f) dosing the apparatus in an air-tight manner and introducing into its interior a fluid under a pressure of to 15 atmospheres; (g) heating the closed apparatus at a temperature up to 200 C., preferably at 150 C. for up to 20 minutes, preferably for 15 minutes; (h) cooling the apparatus in the air; and (i) discharging from the interior of the vessel the fluid to return the interior of the vessel to atmospheric pressure. The adhesive may be applied by spraying, alternatively, it may be applied in the form of a continuous film.
Patent GB-175130-A (GB)
Title: Improvements relating to the cylinders of vacuum brake apparatus
IPC: B60T17/08
Filed: 1920-12-01
Abstract: 175,130. Gresham, H. E., and Kiernan, G. Dec. 1, 1920. Bushes.- The neck bush cf a vacuumbrake cylinder is secured by means inside the cylinder, so that the bush cannot be removed without dismantling the cylinder. The bush e may be fixed by a screw i, Fig. 13, having a cut away head. a plate secured by a screw, a waved wire ring engaging a groove in the bush, a sheet-metal or wire ring with turned-in ends engaging holes in the bush, a nut screwed on to the the end of the bush, or a stud screwed into the bush so that its head engages the bottom of the cylinder, or other means.
Patent GB-832168-A (GB)
Title: Improvements in or relating to the production of mica crystals
IPC: C01B33/42
Filed: 1958-10-23
Abstract: Mica crystals are grown on seed crystals placed in a crucible in contact with mica-producing raw material, by heating the crucible so that there is a temperature gradient increasing from the seed crystals to the other end of the crucible and so that the material is melted but only the ends of the seed crystals in contact therewith are melted, and then cooling the melt gradually away from the seeds, the seeds being placed so that their c-axes are perpendicular to the temperature gradient.  The seed crystals are placed at the bottom of a crucible with their c-axes parallel to the bottom with raw material filling the rest of the crucible. The crucible is surrounded by a vertical furnace which melts the material and provides a gradient of increasing temperature from the bottom upwards.  When the material and the top edges of the seeds have melted the crucible is slowly lowered out of the heating zone.  The raw material may be fragments of synthetic mica and various materials are mentioned which may be used to obtain fluor-micas.  Fluorides may be added to compensate for the loss of volatile components, and other materials are mentioned which may be added to obtain good crystals.  The seed may be several single crystals, small crystals assembled in the same c-axis direction and pressed with or without a bonding agent at room or elevated temperature, or a large single crystal.  A pressed block of crystals may be converted to a single crystal by melting all but one end.  Examples are given.
Patent GB-874331-A (GB)
Title: Improved polyethylene compositions
Inventor: PUCKOWSKI ROBERT TADEUSZ
IPC: C08K5/46
Filed: 1958-10-23
Abstract: Polymers and unspecified copolymers of ethylene contain as stabilizers phenothiazines of formula: <FORM:0874331/IV (a)/1> in which R and R1 are aryl, alkyl, hydroxyl, -OX in which X is alkyl or aryl, or -NHY or -NY2 in which Y is alkyl or aryl and wherein m and n vary from 0-4.  Optional ingredients are carbon black and unspecified antioxidants.  The examples illustrate the effect of the stabilizers in accelerated ageing tests.  Specification 874,330 is referred to.
Patent GB-933761-A (GB)
Title: Improvements in or relating to upholstery clips
Inventor: HARDWICKE DENNIS JACK
IPC: A47C31/02
Filed: 1958-10-24
Abstract: 933,761. Securing upholstery material. BIRMINGHAM SMALL ARMS CO. Ltd. Dec. 14, 1959 [Oct. 24, 1958], No. 34019/58. Class 52 (4). Bifurcated clips for securing upholstery material or trimming to a flange or similar edge of a metal pan for a seat have in each limb 1 inwardly punched projections 2 to grip the material and each limb has a circular hole 3 near one carrier so that, for loading into a machine, the devices can be mounted on a rod 5 and will hang in uniform positions.
Patent GB-1340877-A (GB)
Title: Contact lenses
IPC: G02C7/04
Filed: 1970-07-14
Abstract: 1340877 Contact lenses WESLEY-JESSEN Inc 5 Jan 1971 [5 Jan 1970] 34167/70 Heading G2J A contact lens comprises a light-transmitting area 13, provided with proper correction for distance vision, centrally located, and a surrounding "opaque" region 17 defining an essentially circular pattern, having light-transmitting regions 16 communicating with area 13 and extending radially from this area, the regions 16 having a width substantially smaller than the diameter of area 13. The term "opaque" is used to mean that the region reduces transmission by at least 50%. Other forms of light-transmitting areas are illustrated Figs. 2 and 4-7, (not shown).
Patent GB-870512-A (GB)
Title: Improvements in electric lighting fittings
Inventor: ANSELL KENNETH WILLIAM
IPC: F21V3/02
Filed: 1956-11-08
Abstract: 870,512. Lighting fittings. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 7, 1957 [Nov. 8, 1956], No. 34178/56. Class 75(2). A lighting fitting comprises a hollow member 9 of light transmissive material connected in sealed relation as by gaskets 12 to a planar member, e.g. in the form of a circular metal sheet 1 to form an annular enclosure, the enclosure being provided with reflecting surfaces such as 6 and/or refracting members located therein or formed on or by the walls thereof, an electric lamp 3 being insertable through the central opening 2 limited by the walls 13 into a holder 4 in which the lamp is in optical relationship to the reflecting and/or refracting members. The lamp holder 4 is supported e.g. by a strap 5 secured to the sheet 1 and extending across the openings 2. The hollow member 9 is opalescent except for a transparent inner wall 13.
Patent GB-200052-A (GB)
Title: Improvements in valve-gear for compressed air or similar motors and tools
IPC: F01B17/02
Filed: 1922-12-15
Abstract: 200,052. Eloy, F. June 28, 1922, [Convention date]. Fluid-actuated gears.- A differential valve has conical heads 16, 17 controlling the admission through ports 6 - - 9, heads 18, 19 controlling the main exhaust through ports 12, 13 and 14, 11 respectively, and its spindle 4 works through a partition 15 forming two chambers 3 to which cylinder fluid controlled by the piston 2 is supplied to reverse the valve before exhaust. Reduction of the blow by the formation of a vacuum is prevented by a central, piston-controlled, auxiliary exhaust port 5, and forward cushioning by a second forward exhaust port 10.
Patent GB-447289-A (GB)
Title: Improvements in bed-settees and the like
IPC: A47C17/32
Filed: 1934-11-29
Abstract: 447,289. Hinges. McCLANACHAN, W. L., 23, Clincarthill Road, Rutherglen, Lanarkshire, and GREEN, J., 1, Ann Street, Johnstone, Renfrewshire. Nov. 29, 1934, No. 34299. [Class 65 (ii)] [See also Group XIV] A hinge-fitting connecting the front 3 of the seat frame of a bed-settee to the front board 1 of the fixed frame comprises three pivotally interconnected hinge elements 5, 6, 7, the intermediate element 6 serving as a spacing element, while the outer parts 5 and 7 consist of angle brackets attached to the frames. Pivot pins 8, 9 pass through lugs at the sides of the brackets 5, 7 and through the parts of the element 6 which lie between the lugs. Shoulders 12 on the element 6 abut against the brackets 5, 7 in the normal position of the seat, and in the inverted position of the seat abutment faces 17, 18 on the element 6 come into contact with parts of the brackets.