baber/WOPTO huggingface dataset:
Patent GB-796515-A (GB)
Title: A method for producing phenol-aldehyde resins
Inventor: CARLSTROEM BOERGE INGMAR
IPC: C08G8/00
Filed: 1955-12-15
Abstract: Phenol-aldehyde resins are made by condensing a phenol and an aldehyde to the resol stage in the presence of an alkali metal hydroxide, the alkali metal being removed from the resulting resin by contacting it with an ion-exchange material containing cations consisting of ammonium, hydrogen or divalent metals of Group II of the Periodic Table.  The ion-exchange material preferably contains ammonium ions and is charged with ammonia prior to being contacted with said resin.  The resin remaining in the ion exchange material being washed out with an aqueous ammonia solution.  Specified divalent metals of Group II are calcium, magnesium and barium.  In the example, phenol and formalin are condensed together in the presence of caustic soda, the resultant resin being filtered through an ion-exchanger saturated with ammonium ions from ammonium sulphate solution and containing ammonia, the ion exchanger then being washed out with ammonia.
Patent GB-812415-A (GB)
Title: Improvements relating to the production of a matt surface upon solvent cast film or sheeting
IPC: B29C48/08
Filed: 1955-12-15
Abstract: <PICT:0812415/IV (a)/1> <PICT:0812415/IV (a)/2> Film-forming material dissolved in a volatile solvent is deposited on a casting surface, part of the solvent is evaporated to provide a selfsustaining film or sheet, and the latter is stripped from the casting surface, a stream of a gaseous medium being directed during the stripping against the surface of the film or sheet that has been in contact with the casting surface.  As shown, film-forming material, e.g. a solution of cellulose acetate, propionate, butyrate, acetate propionate, acetate butyrate or nitrate in acetone, methylene chloride or mixtures of methylene chloride and methanol, ethanol, propanol or butanol, or of vinyl chloride in ethyl methyl ketone, or of ethyl cellulose in a benzene-ethyl alcohol mixture, is deposited from a hopper 12 upon a rotating casting wheel 11 which is partially surrounded by a chamber 14 through which an evaporative medium is circulated.  The self-sustaining film or sheet is stripped at 17 while a stream of air from a supply 19 is being directed against that surface of the film previously in contact with the drum 11.  The film passes through stripping rollers 18 and a heated drying chamber to remove the residual solvent.  Film thus prepared has a matt surface.  The air from 19 is directed through a series of nozzles 25 in a flat stream against the film.  Valves 26 may isolate certain nozzles to produce a pattern effect.  The general pressure of the air and thus the matting effect may be varied by use of a valve 22.  The angle between the stripped film and the tangent to the casting surface at the stripping point should be between 80 and 120 degrees.  Examples are given in which a matting effect is produced when the amount of residual solvent in the stripped film is of the order 24 per cent by weight.
Patent GB-177587-A (GB)
Title: Puncturing needle for the determination and emptying of aqueous accumulation in cavities of the human body
IPC: A61M25/06
Filed: 1920-12-23
Abstract: 177,587. Michael, C. Dec. 23, 1920. Syringes; cannulas.-A puncturing-needle for locating and removing aqueous matter is provided at its outer end with a coned socket a adapted to engage frictionally upon a coned plug formed on the outer end of the syringe c, and is located within a cannula d. The cannula encloses the needle approximately to its point and has at its outer end a coned socket engaging the external portion of the socket a on the needle or the coned plug at the outer end of the syringe. The needle acts as the testing and locating member and also as the piercer for the cannula. Reference has been directed by the Comptroller to Specification 123,520.
Patent GB-445461-A (GB)
Title: Improvements in or relating to boiler feed recording and control apparatus
IPC: F22D11/00
Filed: 1934-12-24
Abstract: 445,461. Liquid - meters. LEA RECORDER CO., Ltd., and LEA, J. E., Cornbrook Park Road, Old Trafford, Manchester. Dec. 24, 1934, Nos. 36106/33. [Class 69 (i)] In liquid-meters of the V-notch or weir type for boiler feed water, the float j for operating the inlet valve g<1> acts on the valve lever k by adjustable tappets k<2> and is disposed in a compartment separate from the main body of the storage tank d but connected thereto by a restricted opening or a regulable valve i. The compartment may be formed by a partition h, by a circular wall, or may consist of a separate tank connected to the main tank by a fee@ pipe and an overflow pipe.
Patent GB-1319462-A (GB)
Title: Target structures for electron beam storage devices and methods  of fabricating and using same
IPC: H01L31/10
Filed: 1970-07-27
Abstract: 1319462 Cathode-ray tubes; semi-conductor devices GENERAL ELECTRIC CO 27 July 1970 [28 July 1969] 36227/70 Headings H1D H1K A taget for a cathode-ray tube comprising an array of diodes formed by conductive material in the apertures of an insulating coating on a semi-conductor substrate, is characterized is that the conductive material extends through the insulating coating and overlies it to stop it from becoming charged by the scanning electron beam. In one arrangement, Fig. 1, the substrate 11 is N-type silicon of a 1, 0, 0 orientation coated with silicon dioxide or nitride 11 in which apertures are formed, and P-type silicon is epitaxially grown on the exposed portion to form pyramids 13. If the target is to be charged by a light image it may be provided with an anti-reflective coating 15 of zinc sulphide, but the target may alternatively be charged by another electron beam or by X-rays. In an alternative arrangement the conductive material is metal and the diodes are Schottky diodes. Electrode processing.-A silicon single crystal having a 1, 0, 0 orientation is cut into a disc shaped wafer, lapped, polished, etched to a thickness of 100 microns, and oxidized at 1150‹ C. for 10 hours in dry O 2  to grow a 6000 A‹ layer of SiO 2 . A pattern is formed on a photoresist and the oxide partly removed by etching in buffered hydrofluoric acid to form an array of 8 micron diameter holes on a 16 micron grid preferably oriented along a 1, 1, 0 direction. The photoresist is removed by washing in hot sulphuric acid after which the wafer is washed in water and etched in buffered hydrofluoric acid to remove a thin layer of surface oxide. After washing in water to remove surface impurities the wafer is inserted between two susceptor discs in a vacuum reactor chamber. The upper disc is maintained at 1100‹ C. and serves as a source of P-type silicon (boron doped) which is transported to the wafer by an iodine pressure of 1 mm., whilst the lower disc is maintained at 1000‹ C. The wafer is next diffused to drive a portion of the P-type impurities into the wafer to a depth of 1 micron, and a portion of the oxide covering the reverse side of the wafer is removed by etching. Contact to the wafer is made by an indium ring. This produces a target sensitive to infra-red radiation. Improved response to visible light may be obtained by diffusing a light N-type surface into the wafer and by thining the central portion to 20 microns, or by starting with an N<SP>+</SP>-type wafer having an N-type layer epitaxially grown thereon, the N<SP>+</SP> material then being removed in the active regions of the device.
Patent GB-820859-A (GB)
Title: Improved device for connecting agricultural implements to tractors
IPC: A01B63/02
Filed: 1954-12-15
Abstract: 820,859. Agricultural implements. HOWES, R. M. Dec. 14, 1955 [Dec. 15, 1954], No. 36343/54. Class 6(1). A plough for use in boundary ploughing comprises a frame 2 to which a tool holder 26 is attached by bolts in any of a plurality of positions, the tool holder being fitted with a plough 30 and coulter 31. A supporting structure 4 is bolted to the frame 2 and is connected to the three point linkage of a tractor and is transversely adjustable on the frame 2. When ploughing a field the structure 4 and the tool holder are mounted in the centre of the frame 2 and for boundary ploughing the machine is arranged as shown in Fig. 1. In this position an additional stay 45 is fitted to the frame. The plough 30 is connected to the holder 26 by two bolts 34, 35 and a smaller bolt 36 of a soft metal. When ploughing land fouled by obstructions the bolt 35 is removed so that on hitting an obstruction the plough may pivot rearwardly about the bolt 34, shearing the bolt 36. The structure 4 includes two members 5, 6 to the front of each of which is bolted a plate 18 provided with two pins 20, 21 of different sizes to suit linkages of different tractors. A pin fixed to the members 5 or 6 engages in one of a series of holes in the plate 18 to allow the plate to be angularly adjusted. When the pin 21 is to be used the position of the plate is reversed.
Patent GB-797303-A (GB)
Title: Improvements in or relating to conveyor and transmission belts and joints therefor
Inventor: HARRIS ERIC
IPC: F16G3/04
Filed: 1955-12-19
Abstract: 797,303. Belt fastenings. BELTFASTENERS, Ltd. Dec. 20, 1956 [Dec. 19, 1955], No. 36370/55. Class 80 (1). In a hinged belt fastening of intermeshing wire hook type the gap between each belt end 5 and the hinge pin 6 is filled by a resilient sealing strip 1 incorporating a stiffening element 2. The stiffened sealing strip can be handled in the manner of a self-supporting bar and is threaded through each row of hooks before insertion of the hinge pin. As shown, the strip 1 is of non-inflammable foamed polyisocyanate resin or other foamed plastic material and is of rectangular section. The stiffening element 2 comprises a strip of polyvinyl chloride sheet material bonded to the strip 1.
Patent GB-1298588-A (GB)
Title: A cinematograph projector particularly for reduced gauge films
IPC: G03B1/50
Filed: 1970-07-28
Abstract: 1298588 Cine projectors E AGRATI and E SALA [trading as POLISTIL SNC DE AGRATI EUGENIO SALA ENNIO] 28 July 1970 [10 Oct 1969] 36516/70 Headings G2E and G2J A cine projector casing comprises two partspherical shells 11, 10 attached to a disc-like support 1, on which the projector 3 is fixed, to form a spherical body which is supported on a base 12 with a complementary concave upper face slotted to receive guides 15, 16 on the under side of the body, guide 16 having rack teeth 17 engaging manually rotatable pinion 18 for tilting of the projector about a horizontal axis, the projector being provided with an adjustable mask for use with either "standard-eight" or "supereight" film.
Patent GB-619451-A (GB)
Title: Improvements in or relating to the arrangement of the electrical system in motor road vehicles
IPC: B60R16/03
Filed: 1946-12-11
Abstract: 619,451. Motor-vehicle electrical systems. FREEMAN, J. G. Dec. 11, 1946, No. 36554. [Classes 79 (iii) and 79 (iv)] In a motor road vehicle a number of electrical devices normally separately mounted, e.g. ignition coil, cut-out and horn, are assembled together with an instrument panel, switches and fuses in an assembly which can be readily detached from the vehicle. The unit is preferably mounted in a tunnel in the vehicle so that the instruments and control switches are at the end of the tunnel adjacent the driver and the connectors for lamps and other appliances are at the engine end of the tunnel, the unit being slidable in and out of the tunnel. The casing of the unit may be moulded from plastic and may incorporate terminal strips and other connections. The unit may include such accessories as ignition coil, cut-out and/or voltage regulator, fuses, horn and windscreen wiper motor, the latter being provided with a detachable coupling for connection to the wiper mechanism on the vehicle. The unit may embody an instrument light to illuminate adjacent non-electrical instruments, such as a speedometer. As shown in Fig. 1, the unit 1 is mounted in the tunnel 2 extending between the driving and engine compartments, the horn 24 being mounted on the front end of the unit, and the rear end incorporating an instrument panel 6 and projection 16 for controls such as the horn button, direction indicator switch and instrument light for adjacent instruments. Fig. 2 shows the complete unit embodying on the front panel an electric clock 12, wiper switch 9, ammeter 10, ignition switch 8, electric petrol gauge 11 and lighting switch 7, the instruments being illuminated by panel lamps 17. The projection 16 carries dipping switch 13, trafficator switch 151, 150, horn button 15 and switch 14 for the instrument light 18 for adjacent non-electrical instruments. Within the unit are wiper motor 22 with detachable coupling 82, fuse block 23, cut-out and/or voltage regulator 20, ignition coil 21 and earthing strip 33. Mounted on the front end 25 of the unit is horn 74, sockets for plugs 51, 52, 61 leading to the side and tail lights, head lamps, and auxiliaries such as petrol gauge and trafficators respectively. The front end and the various connections may be provided with a detachable cover-plate, and the whole unit is secured in position by screws 80.
Patent GB-827527-A (GB)
Title: Improvements in or relating to metal or like detector apparatus
Inventor: MINCHIN DONALD CHARLES
IPC: G01V3/10
Filed: 1955-12-21
Abstract: 827,527. Electric tests. RANK-CINTEL Ltd. Dec. 21, 1956 [Dec. 21, 1955], No. 36593/55. Class 37. In apparatus for detecting metal objects on a conveyer 1 passing through the field of a coil 6, the coil is so positioned that its field has a component perpendicular to the movement of the conveyer through the field. A further coil 7, oppositely inclined, may also be used and the coils may be inclined in two directions (Fig. 4) while in Fig. 5 a coil bent, as shown, is used, the two sides of the coil being separated by a spacer 13. Specification 574,808 is referred to.
Patent GB-342435-A (GB)
Title: Improvements in apparatus for playing a dart game
IPC: F41J3/00
Filed: 1929-11-29
Abstract: 342,435. Dart games. JOSEPH, H. E., Portland Lodge, Littlehampton, Sussex. Nov. 29, 1929, No. 36609. Addition to 248,592, [Class 132 (iii), Toys]. [Classes 132 (ii) and 132 (iii).] A game is played with a number of darts B, Fig. 6, each fitted with planes and numbered to correspond with one of a series of compartments spaced around the periphery of a structure H2, Fig. 3. The darts normally lie in pivoted shoots H1 within the compartments and are released to fall on to a rotatable dartboard L when the shoots are tilted by cords J, each under the control of a player. The dartboard may be circular, spherical or cylindrical, is divided by lines into numbered sections and may be marked with a map. The structure is constructed to be readily assembled and dismantled.
Patent GB-167435-A (GB)
Title: Improvements in filters for use in connection with dry gas meters
IPC: G01F15/12
Filed: 1920-12-31
Abstract: 167,435. Huckschlag, H. Dec. 31, 1920. Filtering.-A gas filter, introduced into the piping in advance of a dry gas meter to prevent impurities and moisture from reaching the meter, consists of a thimble a suspended vertically in the pipe and having its bottom and the lower part of its outer wall unperforated so as to form a chamber in which collect impurities shed inside the thimble. The thimble has perforated internal shells b which are preferably of semicircular cross-section so that the parts may be easily dissembled and cleaned. The perforations of the internal shells are arranged so that they come in a staggered position in relation to those of the outer wall of the thimble.
Patent GB-628334-A (GB)
Title: Improvements in machines for fabricating and filling packages
IPC: B65B41/18
Filed: 1946-12-11
Abstract: 628,334. Packaging machines. SALFISBERG, L. L. Dec. 11, 1946, No. 36629. Convention date, May 31, 1946. [Class 94(i)] In a packaging machine, means are provided for feeding a strip of packaging material step-by-step from a source of supply, and to vary the feed of said strip during each step. As shown, the machine comprises a coil C of web material mounted on a spindle 9 and led round rollers 16, 17 to a former 24 where it is folded, over a series of rollers 26, 35, 38 to a bag-forming and filling position D, through auxiliary feeding brushes F to separating means G, and finally to a conveyer belt 137. After folding, the material passes through a brake 29 urged by a spring 31 into contact with the roller 26, over the feeding roller 35 which is vertically oscillated by a rod 47, under a feed-adjusting roller 36 on a shaft 39 which has eccentric end portions one of which is rigidly connected to one end of a bell-crank lever 41, and thence over the roller 38. The movement of the bell-crank lever raises and lowers the lowermost point of the roller 36 relative to the feed roller 35, thus allowing more or less material to be pulled from the coil. The amount by which the roller 35 may be raised is adjustable by a block 67. A second brake element 37 holds the material after passing under the feed-adjusting roller. The operation of the feeding mechanism is such that when the feed roller 35 rises, the brake 37 holds the material, the brake 29 releases it, and the adjusting roller allows the feed roller to pull sufficient from the coil to form a single package. The brake 29 then holds the material, the brake 37 releases it, and the auxiliary feeding brushes pull the material down into position to be operated upon by the filling and sealing mechanism. The movements of the rollers are timed by cams operating on a single shaft. Specification 564,098 is referred to.
Patent GB-1121564-A (GB)
Title: A method of forming a high pressure cartridge for a beverage dispenser
IPC: B67D1/04
Filed: 1966-08-17
Abstract: 1,121,564. Making high pressure cartridges. ROBERTSHAW CONTROLS CO. 17 Aug., 1966 [23 Aug., 1965], No. 36885/66. Heading B3A. [Also in Divisions B8, F1 and F2) A high pressure cartridge 50 for a beverage dispenser is made by forming a metal slug into a cylindrical body 62 with a dividing wall 56 forming a hole 66 in the wall for a vavle 82 and curling the end of the body to form a chamber 60 for the liquefied gas, e.g. liquid carbon dioxide. The CO 2  cartridge 50 is formed by cold extruding a slug of aluminium or aluminium alloy and by machining operations. The extrusion forms a cylindrical body with an open end 64. An expanded gas chamber 140 is machined in the closed end 58 and separated from the chamber 60 by an intermediate wall 56. An opening 66 is then formed in the wall 56 and thereafter the open end 64 is curled inwards to form a reduced opening 72 which is sealed by a plug 78. A tube 80 having an intake end 82 and a discharge end 84 is secured in the opening 66 and expansion valve 86 secured in the tube. The valve is of the check-valve type and has a stem 88 and a control member 90. At the inlet of the tube 80 a liquefied gas restrictor or filter 94 is provided. The filter comprises a square bar of aluminium machined to produce straight sides (110) and curved edges (108) with tapered ends (104, 106), Figs. 7 and 8 (not shown). The bar may also be machined to have a cylindrical neck (112) and a circular head (114). The gas expansion chamber 140 has a diaphragm 92 placed adjacent its side wall 142 with its periphery held against the wall by a cup-shaped member 146. A cylindrical atmospheric pressure cavity 147 is also machined coaxially to the chambers 60, 140 and includes a threaded wall portion 147<SP>1</SP> into which a ring 158 is threaded to hold the member 146 tightly against the diaphragm 92.
Patent GB-896904-A (GB)
Title: Improvements in or relating to toy balloons
IPC: A63H27/10
Filed: 1959-10-31
Abstract: 896,904. Toy balloons. KROTO, H. F. Nov. 30, 1960 [Oct. 31, 1959], No. 37034/59. Class 132(3) An inflatable toy balloon of transparent material has disposed therewithin one or more further elements such as another balloon or a laminar representation, the inflatable balloon and/or said further elements having markings to provide a complementary visual effect and such markings are at least partly made with luminescent or fluorescent paint. The inflatable balloon may have markings of marine plant life and may have a cardboard fish suspended inside. Specification 893,680 is referred to.
Patent GB-1021958-A (GB)
Title: Improvements in or relating to filled ethylene polymers or copolymers
Inventor: HICKMAN JOHN RICHARD
IPC: C08L23/04
Filed: 1964-09-11
Abstract: A composition comprises 45-95 parts of at least one branched chain polymer of ethylene having a density of 0.910-0.935 or a copolymer of ethylene with propylene butene-1 or butadiene of density 0.94-0.96, the polymer or copolymer containing 20-40 side chain groups together with a detectable amount of unsaturated vinyl groups and 5-55 parts of a polymeric filler which is polystyrene, copolymers of styrene with butadiene, dimethyl itaconate, acrylonitrile, acrylonitrile/dimethyl itaconate, ethyl acrylate or methyl methacrylate, polycarbonates, polyvinyl acetate, polyvinyl butyral, polymethyl methacrylate, polybutyl methacrylate, chlorinated rubber, ethylenevinyl acetate copolymers, acrylic rubber (ethyl acrylate/2-chloroethyl vinyl ether), saturated polyesters, cured melamine-, phenol- and ureaformaldehydes, naturally derived polymers, e.g. soluble starch, ethyl or carboxymethyl cellulose, sodium carboxymethyl cellulose, vinyl toluene-ethyl acrylate copolymer, chlor-sulphonated polyethylene, polyvinyl alcohol and cellulose acetate.  The composition may also contain a minor amount of butyl rubber, polyisobutylene or atactic polypropylene, and may be in granular form.ALSO:A metal article is surface coated with a composition comprising 45-95 parts of at least one branched chain polymer of ethylene having a density of 0,910-0,935 or a copolymer of ethylene with propylene, butene-1 or butadiene of density 0,94-0,96, the polymer or copolymer containing 20-40 side chain groups together with a detectable amount of unsaturated vinyl groups and 5-55 parts of a polymeric filler which is polystyrene, copolymers of styrene with butadiene, dimethyl itaconate, acrylonitrile, acrylonitrile/dimethyl, itaconate, ethyl, acrylate or methylmethacrylate, polycarbonates, polyvinyl acetate, polyvinyl butyral, polymethyl methacrylate, polybutyl methacrylate, chrlorinated rubber ethylene-vinyl acetate copolymers, acrylic rubber (ethyl acrylate/2-chloroethyl vinyl ether), saturated polyesters cured melamine-, phenod- and urea-formaldehydes, naturally derived polymers e.g. soluble starch, ethyl or carboxymethyl cellulose, sodium carboxymethyl cellulose, vinyl toluene-ethyl acrylate copolymer, chlorsulphonated polyethylene, polyvinyl alcohol and cellulose acetate.  The metal may be ferrous, aluminium, silver, gold, platinum or palladium.