baber/WOPTO huggingface dataset:
Patent GB-675528-A (GB)
Title: Improvements in or relating to control cocks
Inventor: ROBINSON HENRY NORMAN
IPC: F16K3/08
Filed: 1949-11-22
Abstract: 675,528. Rotary disc valves. MAIN, Ltd., R.&A., and MORGAN, S. G. Nov. 22, 1950 [Nov. 22, 1949], No. 29936/49. Class 135. A rotary disc valve has the disc 28, Fig. 1, provided with a triangular recess 30, Fig. 2, permanently communicating with an inlet bore 12 in the body 10 and having an edge 33 which sweeps across an outlet port 13, so that the angular extent of movement between a point when the port first commences to open and a point where it is fully open is greater than the angle subtended by the diameter of the port at the axis of rotation. The disc is rotated by a handle 25 connected to a tubular member 21 having projections 22, 23 engaging slots 35 in the disc, and the projections are urged by a spring 36 into a slot 37 to lock the disc in the off position.
Patent GB-297998-A (GB)
Title: Improvements in or relating to treeing machines for boots and shoes
IPC: A43D3/04
Filed: 1927-11-09
Abstract: 297,998. Gimson Shoe Machinery Co., Ltd., Read, I. L., and Robottom, H. Nov. 9, 1927. Treeing.-Relates to treeing or ironing apparatus of the kind wherein a tree or foot inflated by a fluid medium is employed, and consists in exhausting or collapsing the tree or foot by suction. A controlling valve is used similar to that described in Specification 238,087 a plunger 1 being normally urged by a spring 20 so that a plain part of its surface obturates a passage 3 leading from a pressure reservoir to the tree. In this position, a groove 7 on the plunger opens a passage 5 leading from the tree to a vacuum chamber. A compressor has its intake connected to the vacuum chamber and delivers to the pressure chamber. The plunger 1 is operated by a treadle, this being depressed to inflate the tree. In the position shown, the tree is positively collapsed by suction, instead of merely being allowed to deflate.
Patent GB-489215-A (GB)
Title: Split piston-rings
IPC: F16J9/14
Filed: 1937-11-03
Abstract: 489,215. Piston-rings. WELLWORTHY PISTON RINGS, Ltd., and HOWLETT, J. W. Nov. 3, 1937, No. 30033. [Class 122 (i)] In order to prevent the ends of a split ring from projecting into cylinder ports, each end is provided with a projection 14 remote from its outer periphery, adapted to engage a recess 11 or 18 in the other ring end. The projections may also extend radially of the ring to form abutments for the ends of an expanding spring 16.
Patent GB-448383-A (GB)
Title: Improvements in rotary valve internal combustion engines and pumps
IPC: F01L7/02
Filed: 1935-10-31
Abstract: 448,383. Compressor valves. CROSS, R. C., 33, Midford Road, Odd Down, Bath. Oct. 31, 1935, No. 30087. [Class 8 (i)] [See also Group XXVII] In pumps having rotary distributing valves 1 arranged in split housings across the cylinder heads, as des cribed, for example, ir Specification 448,384, a raised annulus 13 is formed around the cylinder inlet port 5 sc as to assist in preventing leakage of gases from the cylinder to the top of the valve. Resilient packings 9, 10 are provided as described in Specification 448,368, between the two parts 3, 4 of the valve housing, and between the cylinder and crank case. The raised annulus may be formed by scraping away the adjacent metal, or by applying a coating of bearing metal, e.g. by spraying.
Patent GB-284252-A (GB)
Title: Improvements in and relating to ships' funnels and ventilatingcowls
IPC: B63H21/32
Filed: 1927-11-10
Abstract: 284,252. Oertz, M. Jan. 26, 1927, [Convention date]. Chimneys; ventilating-shaft tops.-The outer casing of a ship's funnel or ventilating- cowl is a non-perforated rigid body, the horizontal cross-section of which is parabolic at its front part and converges rearwardly to a point or curve of small radius and the greatest width being one-third of the whole length of the section from the front. A rotatable head may be provided. The drawing shows a funnel enclosed by the improved form of casing.
Patent GB-773137-A (GB)
Title: A three-part trap for washhand basins or the like
IPC: E03C1/292
Filed: 1955-10-24
Abstract: 773,137. Traps. SCHOBER, J. Oct. 24, 1955 [Oct. 25, 1954], No. 30368/55. Class 33. A three-part trap for wash-basins and the like comprises a retaining sleeve 3 of elastic material preferably hard rubber, adapted to be fitted onto the waste pipe 2 of the basin 1, and a trap housing 4 and tube 5 also of elastic material held in position on the sleeve 3 by tension. An alternative form in which the two channels 7 and 8 provided on the sleeve for the bulbous ends of the housing and tube are replaced by a single channel, and the end of the tube is held in this channel between the sleeve and the bulbous end of the housing, is described and illustrated.
Patent GB-1470403-A (GB)
Title: Electrophotographic image carrier
IPC: G03G5/14
Filed: 1974-07-09
Abstract: 1470403 Electro-photographic materials LICENTIA PATENT-VERWALTUNGS GmbH 9 July 1974 [23 July 1973] 30375/74 Heading G2C [Also in Division C7] An electro-photographic material comprises a metal support or a support with a metallized surface, an intermediate layer and an inorganic photoconductive layer; the photo-conductive layer being vacuum deposited on the intermediate layer at a temperature above the melting point of the intermediate layer or the material, after such deposition, being heated to such a temperature to ensure good adhesion for the photo-conductor which is itself unaffected by the heating step. Specified intermediate layers are In, Ga, Bi, Pb, Sn, Cd or alloys thereof such as Wood's metal or Rose's alloy or S or a compound containing S. In the Examples (i) Ga/In alloy, m.p. 50‹C, is vapour deposited on an Al support, heated to 60 C and Se vapour deposited thereon and (ii) In is vapour deposited on steel heated to 200 C and As 2 Se 3  deposited thereon. Halogen doped Se may also be used as photo-conductor.
Patent GB-392832-A (GB)
Title: A new or improved apparatus for supplying molten glass to machines for making glassware
IPC: C03B7/01
Filed: 1932-10-29
Abstract: 392,832. Glass manufacture. SOC. ANON. D'ETUDES ET DE CONSTRUCTIONS D'APPAREILS M•CANIQUES POUR LA VERRERIE, 3, Rue de Castellane, Paris. Oct. 29, 1932, No. 30400. Convention date, May 23. [Class 56.] A rotating pot or hearth 1, used in conjunction with a tank furnace 2 for supplying glass to a suction-gathering machine, is provided with a flue 7 having its upper edge p situated at the desired level of the glass in the pot. The glass flows from the tank into the pot in a stream 3 which is regulated by an adjustable gate 5. If the amount of glass flowing into the pot exceeds that withdrawn by the machine, the excess overflows into the flue 7 and the surface of the glass at the gathering point is kept at a constant level. A chamber 11, arranged below the pot, is heated by burners 12 and prevents loss of heat from the bottom of the pot. The hot gases escape through the flue 7 and assist in maintaining the temperature of the glass. The construction enables the pot to be made of relatively small diameter.
Patent GB-745722-A (GB)
Title: Improvements in or relating to a method and means for improving combustion in internal combustion engines, in particular for starting diesel engines
IPC: F02N19/00
Filed: 1950-12-13
Abstract: A liquid for incorporation in the combustion air of an internal combustion engine, particularly a diesel engine, during starting, the vapours of which liquid are capable of improving the ignition and/or combustion of the main fuel burnt in the engine, comprises a plurality of oxygenated hydrocarbons mixed with ketones, the hydrocarbons boiling within the range of about -50 DEG C. to about +200 DEG C. and oxygen being fixed on these hydrocarbons by means of a peroxidation process.  The term internal combustion engine includes reciprocating internal combustion engines, gas turbines, producer gas engines and power plant utilizing expansion of products of combustion.  The oxygenated hydrocarbon and ketone mixture may comprise for example: oxygenated acetylene or ethane from 1 to 3 per cent; oxygenated alkanes including propane, butane and pentane from 15 to 25 per cent; ketones (such as dimethylketone or methylethylketone) from 5 to 15 per cent; ethers of low molecular weight (methyl and ethyl ether and mixtures thereof) from 25 to 35 per cent; ethers of higher molecular weight (in particular a mixture of propyl and butyl ethers) from 10 to 20 per cent; esters (in particular ethyl, propyl, or butyl acetate) from 2 to 6 per cent; nitrates and nitrites of hydrocarbons (in particular amyl, ethyl, butyl isoamyl or iso-butyl nitrate or nitrite) from 5 to 39 per cent; aldehydes (in particular paraldehyde, butyraldehyde, propionaldehyde and furfuraldehyde) and metallo-organic compounds (for example tetraethyl lead) from 0 to 2 per cent.  The fixation of oxygen on the hydrocarbons by peroxidation can be obtained by treatment with ultra violet rays, by treatment in an autoclave or by chemical reaction with hydrogen peroxide with or without a catalyst.
Patent GB-936576-A (GB)
Title: Circulating water bowl
IPC: A01K7/02
Filed: 1962-08-08
Abstract: 936,576. Drinking appliances for animals. CLAY EQUIPMENT CORPORATION. Aug. 8, 1962 [Aug. 21, 1961], No. 30420/62. Class 5(2). In a livestock watering apparatus a drinking bowl 42 is encircled by an enclosed chamber 68 through which water is constantly circulating and which communicates with the bowl through a valve 48 which is normally biased to a closed position and is operated by a nose piece 62 to allow water to flow into the bowl. Water is circulated from a storage tank 12 located below ground level by a motor and pump arrangement 24, through underground pipes 18, 18a- 22, 22a to watering stations where pairs of water bowls are located, the water passing from the inlet 66 of one bowl, through the chamber 68 to the outlet 70 which is connected to the inlet of the second bowl. A cover plate 47 is provided for the bowl.
Patent GB-398361-A (GB)
Title: Improvements in clutch mechanisms
IPC: F16D13/72
Filed: 1932-10-29
Abstract: 398,361. Friction clutches. AVIONS H.M.D. FARMAN, 167, Rue de Silly, Billancourt, Seine, France. Oct. 29, 1932, No. 30433. Convention date, Nov. 10, 1931. [Class 80 (ii).] A clutch mechanism with friction discs D, 3, 4 has at least one of the discs made hollow for the circulation of cooling oil thereir in a substantially radial direction. The hollow driving-disc D shown ir the Figure preferably con sists of two cheeks 1, 1<1> welded together, one or both cheeks being formed on the adjacent faces witl grooves forming channels 15 for the circulation o: oil. The oil may be sup plied through a nozzle 13 to the interior of the shaft 2, whence it passes by holes 14 to the interior of the disc D. On increasing the speed of the driving-shaft, the discs 3, 4 are progressively applied to the driving disc D by centrifugal weights 10, an initial pressure being applied by springs 12.
Patent GB-1473721-A (GB)
Title: Conveyors
IPC: B65G47/31
Filed: 1974-07-09
Abstract: 1473721 Spacing conveyed articles SAPAL SOC ANON DES PLIEUSES AUTOMATIQUES 9 July 1974 [14 Aug 1973] 30437/74 Heading B8A Apparatus for aligning and spacing irregular rows R of objects delivered on to a conveyer 1 by a production machine and transferred to a second, faster conveyer 2 to thereby form rows  R<SP>1</SP> of greater spacing comprises members 4 which are positioned between the rows R<SP>1</SP> and are movable in the same direction as the conveyer 2, the members 4 being controlled, so as to accelerate and align the objects, by means responsive to signals from a detector 5 detecting the spacing between the rows R<SP>1</SP> and a detector 6 responsive to the speed of the conveyer 2. The members 4 are carried by chains 11 and are urged downwardly to contact the objects by a vertically displaceable cam 14. A motor 21 drives a shaft 20 connected to the detector 6, a drive drum 23 for the conveyer 2, and, via a differential 18, a drive sprocket 16 for the chains 11.
Patent GB-1189678-A (GB)
Title: Improvements in or relating to Delay Lines for Travelling Wave Tubes.
IPC: H01J23/24
Filed: 1967-07-03
Abstract: 1,189,678. Travelling-wave tubes. SIEMENS A.G. 3 July, 1967 [1 July, 1966], No. 30506/67. Heading H1D. A travelling-wave tube slow-wave structure in which interdigitated members are carried by one or more parallel longitudinally extending conductor walls includes also transverse electrodes positioned centrally one between each adjacent pair of interdigitated members, and mounted in such a manner that they exhibit no variation of potential at the operating frequency, whereby small dispersion, a high coupling impedance, and good thermal dissipation, are simultaneously obtained. As shown, beam passage apertures 6 are formed in disc-shaped extensions 5 of sector-shaped fingers 2 which extend from the wall of the circular waveguide 1. The serpentine member 7 forming the transverse electrodes meanders in the plane of symmetry of the fingers and is supported by metal members 9 attached to the waveguide at points diametrically opposite the free ends of the fingers. The beam passage apertures 8 in the member 7 are made smaller than those in the fingers, whereby electron bombardment is substantially confined to member 7. The slow-wave structure may alternatively dispense with the closed waveguide, and be in the form of a pair of interleaved combs, the central electrode meandering either in the plane of the combs, or perpendicular thereto. The beam passage apertures also may in this case be dispensed with, a strip beam being projected alongside the pair of combs, and the two combs and the central electrode being supported from a single plate.
Patent GB-474703-A (GB)
Title: Improvements in and relating to electric bushing insulators of the condenser type
IPC: H01B17/28
Filed: 1936-11-09
Abstract: 474,703. Insulators. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 9, 1936, No. 30534. Convention date, Nov. 9, 1935. [Class 36] A lead-in insulator of the condenser type comprises concentric layers of impregnated fibrous material such as b<1>, b2, b3, c<1>, c<2>, c<3>, between which are disposed wound layers of insulated wire d<1>, d2, d<3>, some of the fibrous layers being turned outwardly at their ends to form flanges e<2>, e<3>, which project radially beyond the wire layers to prevent creeping discharges from the ends of the wire layers. The flanges may be formed by making circumferentially spaced longitudinal cuts in the ends of the fibrous layers and bending the cut portions outwards. The fibrous layers are preferably of paper, as is also the insulation of the wire. The ends of the layers b<1> and c<1> are bound together by threads g. The entire structure may be enclosed in an oil- or compound-filled shell of ceramic material or compressed paper.
Patent GB-150579-A (GB)
Title: Improvements in the rotors of squirrel cage induction motors
IPC: H02K17/16
Filed: 1919-12-06
Abstract: 150,579. Higgs, W. F. Dec. 6, 1919. Coils and conductors.- The ends of the rotor bars b of a squirrel-cage induction motor are twisted through a right-angle and connected together by welding, brazing, or otherwise. The bars are preferably of such a depth that the ends come together when twisted. If the bars are of less depth, the ends are flattened out so that they come together. The bars are preferably formed with bevelled, chamfered, or rounded edges. The ring-like ends may be strengthened by copper or like metallic rings, liners, or the like, which may be welded, brazed, or otherwise secured in place.
Patent GB-1404905-A (GB)
Title: Coating compositions
IPC: C08L23/00
Filed: 1973-06-27
Abstract: 1404905 Ethylene/tetrafluoroethylene copolymer compositions MONTECATINI EDISON SpA 27 June 1973 [28 June 1972] 30621/73 Heading C3P A copolymer composition comprises an ethylene/tetrafluoroethylene copolymer containing 50-60 mole per cent of tetrafluoroethylene and an ethylene/tetrafluorethylene copolymer containing more than 60 mole per cent or less than 45 mole per cent of tetrafluoroethylene. These compositions are used to form coating compositions containing a latent solvent and optionally a fluidizing solvent and a pigment. In examples solvents used are dibutyl phthalate, dimethyl phthalate, ethylene glycol monomethyl ether, methylethyl ketone, isophenone, toluene and butyrolactone.
Patent GB-885017-A (GB)
Title: Self-damped composite structures
IPC: B64C1/40
Filed: 1960-09-06
Abstract: 885,017. Metal sheeting and channels. BARRY CONTROLS Inc. Sept. 6, 1960 [April 13, 1960], No. 30668/60. Class 20(2) [Also in Groups XXII and XXXII] Laminated metal sheets 1, Fig. 1, or structural members such as channel sections 46, Fig. 9, are self-damped against vibration by the interposition of a viscous damping medium 6, 55 between the laminations, the relative slip being limited by fastener means such as spaced rivets 7, 49 which are loosely fitted through the laminations and operate to lock the laminations together after a predetermined amount of flexure. The laminae may be of aliminium, magnesium or steel and have thicknesses not less than about ten-thousandths of an inch so that they are individually self-supporting. The damping medium may be a silicone-base material applied on a doubly coated tape. In examples the rivets may be replaced by bolts or by staples 63, Fig. 10, inserted through the laminations and located loosely by bending at the ends 65.
Patent GB-175003-A (GB)
Title: Improvements in or relating to colour photography
IPC: G03C7/20
Filed: 1920-10-30
Abstract: 175,003. Shepherd, J. F., and Colour Photography, Ltd. Oct. 30, 1920. Grant of Patent refused. Colour photography; toning.-Relates to the production of colour prints consisting of subtractive component prints prepared by two or more dissimilar methods. According to the present invention two chemically toned images, such as toned bromide prints, are combined' with a pigment or dye image or print. A magenta carbon print together with bromide prints toned to bluegreen and yellow respectively is instanced. The colour tone of the magenta image may be modified by a solution of flavazine or naphthol yellow or combination of these. The dye image may be obtained from a gelatine or other printing- surface. For the blue-green bromide print a toning-bath of ferricyanide, citrate of iron, and citric acid may be used and for the yellow print a toning-bath of mercuric iodide, potassium iodide, and ferricyanide. Transparencies or prints on paper may be obtained, and in the latter case one of the images which is opaque in character should be next to the paper or other backing. Specifications 1937/11 and 20556/12 are referred to.
Patent GB-299844-A (GB)
IPC: C13K1/02
Filed: 1928-10-24
Abstract: 299,844. International Sugar & Alcohol Co., Ltd. Nov. 2, 1927, [Convention date]. Glucose. - In a diffusion process for saccharifying cellulose-containing material with hydrochloric acid the material is pre-mashed in a mixer with a part of the total acid used and then transferred to the diffuser. The proportion of acid used in the mixer is such that the heat developed in the subsequent treatment in the diffuser produces a temperature of 25‹-30‹ C. The liquid used for pre-mashing is preferably an acid solution of partially hydrolized cellulose from a previous diffuser. Specification 278,450 is referred to.
Patent GB-1456700-A (GB)
Title: Explosive-powered fastener-driving tool
IPC: B25C1/10
Filed: 1974-07-12
Abstract: 1456700 Cartridge operated inserting tools HILTI AG 12 July 1974 [6 Sept 1973] 30908/74 Heading B4C  A cartridge 15 in a magazine 4 is brought into range of a firing pin 17 by pressing a barrel 7 to a workpiece against action of a spring 11 thus causing the magazine 4 to move back against the action of a spring 21. A hole 18 in the magazine is countersunk to take the conical end 19 of barrel 7 to align the barrel for insertion of the fastener element 16. The magazine is rotatable stepwise about the axis of a rod 6. Forward movement of a pressure part 22 by spring 21 is limited by shoulders thereon which engage the housing 2. The barrel is slotted at 8 and its axial movement is limited by a pin 9.
Patent GB-662751-A (GB)
Title: Resistance bar made from a sintered alloy
IPC: H05B3/00
Filed: 1948-12-01
Abstract: A resistance bar for electrical heating produced by compressing and sintering a mixture of finely comminuted components consisting essentially of one or both of the elements tungsten and molybdenum and at least one oxide with a melting point above 1,500 DEG C the total amount of oxide or oxides being at least 10 per cent by weight of the whole but insufficient to destroy the metallic nature of the sintered product, e.g. up to 45 per cent by weight of the whole.  The oxide component may be zirconia and/or silica.
Patent GB-271757-A (GB)
Title: Improvement in method of making curved razor blades
IPC: C21D9/18
Filed: 1926-12-09
Abstract: 271,757. Marks, E. C. R., Wade & Butcher Corporation). Dec. 9, 1926. Cutlery and like blades. - Curved blades for safety razors are produced by first heating a flat blank to tempering heat and then simultaneously bending and cooling between water-cooled dies 5, 6. The form of blade described has a concave central region 8 and reversely bent edges 9.
Patent GB-686837-A (GB)
Title: Improvements in or relating to internal combustion engines using high viscosity oil fuel
IPC: F02M59/00
Filed: 1949-12-07
Abstract: 686,837. Direct-injection engines. DOXFORD & SONS, Ltd., W., and PURDIE; W. H. Dec. 7, 1950 [Dec. 7, 1949], No. 31446/49. Class 7 (iii). In fuel-injection engines using highviscosity fuel oils which require heating to enable the fuel pump to operate, an auxiliary pump is provided, or an existing priming-pump or spare feed pump is utilized, whereby when the oil is cold and so highly viscous that the pump is unable to feed the engine, oil which is less viscous may be fed into the fuel feed system at one position, a bleed valve being provided at a position in the system spaced therefrom and through which the cold heavy oil between the two positions may be displaced by the less viscous oil. As shown applied to an opposed-piston marine engine adapted to run either on diesel oil supplied via a pipe 10 or boiler fuel oil supplied via a pipe 9, and comprising a main pump 1 delivering through bottles 16 and pipes 2. to a common rail from which injectors 3 are supplied, the pipe 9 is connected to a steam or electric heater 6 from which a pipe 7 leads to the pump inlet, and a connection 12 bypassing the pipe 7 contains a hand-operated pump 14; in addition, for alternative use, an existing electric priming pump 40 is connected by a pipe 48, which can be heated, to the heater 6, and by a pipe 44 to a valve chest 46 intermediate in the length of the pipes 2. If the pump 14 is to be used, the heater is turned on, a valve 15 is opened, inlet valves 52 to the pump 1 are closed and the pump 14 is operated to circulate hot. oil through the heater 6 and pipe 7. A valve 8 in the pipe 7 is then closed, the valves 52 and bleed valves 18 in the bottles 16 are then opened, and the pump 14 is operated to clear the fuel pump 1. Finally, the valves 18 are closed and bleed valves in the injector valves are opened, and the pump 14 is operated to clear the system. When using the pump 40, the heater is turned on, and the pump circulates hot oil through the pipe 44 to the main fuel pump I, pipe 7 and heater 6, arrangements being provided whereby the oil flows through the pump 1 or is by-passed. Then the valve 8 is closed and the bleed valves in the injection valves are opened to allow the remainder of the system to be cleared. Bleed valves may be fitted at one or more positions in the pipes 2. A thermostat 50 limits the temperature of the oil to 190‹- 200‹ F. Instead of using heated oil as above, low viscosity diesel oil may be supplied to the pumps 14, 40.