baber/WOPTO huggingface dataset:
Patent GB-1459035-A (GB)
Title: Flame spray materials
IPC: C23C4/08
Filed: 1974-06-03
Abstract: 1459035 Flame spray material METCO Inc 3 June 1974 [6 July 1973] 24371/74 Heading C7F  A composite flame spray material, e.g. in the form of coated powder, twisted wires or a wire made from a sheath and a core, comprises A1 (2 to 18%), Mo(0À5 to 16%) and Ni and/or Cu and/ or Fe(66 to 97À5%). Coated particles may be formed by hydrogen reduction of ammoniacal solutions of Ni, Cu, Fe, vapour deposition, thermal decomposition or hydrogen reduction of metal compounds or by applying the materials in the form of a paint. The material may include selffluxing alloys of e.g. Ni, Ni-Cr, Co or carbides of W, Ti, Zr, Ta, Nb, Hf, Cr. The material may be plasma sprayed on steel plates.
Patent GB-1340987-A (GB)
Title: Semiconductor information store
IPC: H01L29/00
Filed: 1972-05-24
Abstract: 1340987 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 24 May 1972 [21 June 1971] 24381/72 Heading H1K [Also in Division H3] A data storage cell consists of a pair of back-toback semi-conductor hetero-junctions (10, Fig. 1). One assumes a high impedance state (26, Fig. 2, not shown) and the other a low impedance state (24) to represent one binary condition, and they assume the opposite impedance states for the other binary condition. Each heterojunction device is described as being formed between two regions of semi-conductor material in which doping density, and the density of crystalline imperfections (which include energy traps), are related; the materials on the two sides of the junction being of the same or of different conductivity type. Discrete heterojunction devices may be connected in opposition to form the storage cell; or else, Fig. 5, they are formed in a P-diffusion 32 in an N-type substrate 30 by growing N-regions 34, 36 having the required imperfection density. A plurality of cells is wired with X and Y conductors to form a matrix, or the matrix may be integrated. To change the impedance states, a low impedance junction must be forward biased until its current reaches I fs , Fig. 2, and a high impedance junction must be reverse biased up to V rb . Rapid transitions 27, 28 follow to reverse the states.
Patent GB-532292-A (GB)
Title: Improvements in and relating to the manufacture of cellulose ethers
IPC: C08B11/20
Filed: 1939-08-24
Abstract: 532,292. Cellulose ethers. REICHEL, F. H. Aug. 24, 1939, No. 24407. [Class 2 (ii)] Cellulose ethers which are soluble in aqueous media are obtained by a process comprising subjecting cellulosic material to the action of an etherifying agent in presence of alkali, neutralizing the excess of alkali in the reaction product by means of an acid gas whereby a salt is formed, and drying the reaction product without separating the salt therefrom. The acid gas may be a gaseous acid or acid anhydride such as carbon dioxide, hydrogen chloride or bromide, acetic acid, acetic anhydride, sulphur dioxide, or sulphur trioxide. Etherification may be effected to such an extent that the cellulose ether formed is soluble in hot or cold water or in aqueous alkali solutions. The cellulosic material may be wood, straw, jute, hemp, ffax, cotton, sulphite cellulose, cotton linters, regenerated cellulose, de-esterified cellulose esters, or a cellulose conversion product such as oxycellulose or hydrocellulose, or it may be a cellulose ether of low degree of substitution. In making the alkali-cellulose there may be used caustic soda or potash, or a quaternary ammonium hydroxide. The etherifying agent may be methyl or ethyl chloride or bromide, dimethyl sulphate, sodium ethyl sulphate, ethylene or propylene chlorohydrin, epichlorohydrin, ethylene or propylene oxide. chloroacetic or chloropropionic acid. The cellulose ethers produced may be used in the production of filaments, films, tubes, capsules, plastics, coatings, or sizes, or used as protective colloids, thickening agents, or binding agents in shaving creams toothpastes, cosmetics, hair-waving liquids, medicines, paints, or wax compositions. They may be used as dispersing or thickening agents for pigments and dyes, e.g. direct dyes, azo dyes, leuco vat dyes, and stabilized vat dyes, for printing and dyeing textiles or paper.
Patent GB-719312-A (GB)
Title: Improved method of incorporating a solid lubricating substance into a receptive metallic surface
Inventor: MITCHELL DAVID
IPC: F16C33/12
Filed: 1951-10-19
Abstract: 719,312. Bearing bushes. GLACIER METAL CO., Ltd. Oct. 20, 1952 [Oct. 19, 1951], No. 24442/51. Class 12(1) [Also in Group VIII] A solid lubricant is applied to the pores or crevices in a receptive surface of a metallic bearing element in the form of a dispersion, suspension or solution in a liquid carrier and compacted into the pores or crevices by centrifugal action. The solid lubricant may be polytetrafluoro-ethylene, molybdenum disulphide, lead di-iodide, boron nitride, stannic sulphide, lead sulphide, cadmium iodide, tungsten disulphide, silver sulphate, a-mercapto-palmitic acid, graphite or camphor. and the metallic bearing element may comprise a backing layer of steel having a sintered layer of porous copper-tin, copper-lead or copper-tin-lead bonded thereto. The metallic element or elements may be heated to a temperature approximating the volatilisation temperature of the liquid carrier prior to and/or during the centrifugal action. The centrifugal treatment may be continued until a skin is built up on the receptive surface, and then it may be pressed, burnished. brushed, or rolled to compact and densify it. If desired the receptive surface may be produced by etching. As shown, a cylindrical bush 1 (in one or more pieces) is mounted in a rotatable carrier 2 and held in place by an endplate 3. The solid lubricant in dispersion is introduced through a nozzle 5. Specifications 685,319, [Group XXII], and 707.065 are referred to.
Patent GB-1066986-A (GB)
Title: Tuner with screening housing
IPC: H05K9/00
Filed: 1964-06-12
Abstract: 1,066,986. Circuit assemblies. R. & E. HOPT KOMM GES. June 12, 1964 [July 13, 1963], No. 24503/64. Heading H1R. In a R.F. tuner, e.g. a VHF/UHF television tuner, the components of which are mounted in a screening housing (1, Figs. 1, 2, not shown), comprising a plurality of chambers (3), a separate box (5) is mounted on the housing (1), and accommodates and screens components (such as 9, 10) of an IF output circuit; a printed circuit-board (6) covers the box (5), a minimum amount of conductive cladding on the outside of the board being removed to form a wiring pattern for the components, so that the board substantially completes the screening of the IF circuit. Tags (15) on the rim of the box (5) are bent over the board (6) and soldered to the cladding thereon. The board (6) may overlap the box (5), the overlapping part providing printed wiring for supply components &c. (19) for the tuner. The box (5) may have no separate base; and it may alternatively be attached to a rear wall of the housing (as shown at 21).
Patent GB-462037-A (GB)
Title: One-blade air screw propeller or screw wind wheel
IPC: B64C11/00
Filed: 1935-09-03
Abstract: 462,037. Screw propellers. SCHWARZ GES., G. Sept. 3, 1935, No. 24540. Convention date, Sept. 4, 1934. [Class 114] A screw propeller of the kind having one blade arranged so that the blade is pivotally mounted on the shaft with its axis in a plane perpendicular to the shaft and transversely of the axis of the blade is provided with a counterweight on the opposite side of the propeller blade. A blade 1 is fitted on a cross axis 4 set in line with the propeller shaft axis 3 and the blade is continued and forms a counterweight 2 so that the masses on either side of the axis counterbalance. In one form the counterweight consists of a body 5, which is provided with arms 6 having pivot bolts 7 mounted therein. The bolts engage in arms 10 on a hub 9 which has a flange for bolting to the shaft flange. The blade 1 is fitted at its root into an opening in the counterweight 5 and has an arm 11 mounted between stops 12 fixed to the hub 9, these stops being formed of rubber. The counterweight may be provided with an additional sleeve which is adjustable so that final correction of balance can be made. In another form the pivot bolts are provided with spring held friction discs which provide a damping action on the pivotal movement. In addition the counterweight may carry radial arms and weighted portions 21 acting centrifugally to balance the blade these portions being connected by springs 22 to the supporting pivot arms 23. In another form, the blade is freely mounted in a counterweight 30. and carries beyond the weight a bevel wheel 35 which meshes with a bevel 29 on one of the driving arms 28. Relative pivotal movement of the blade to the shaft thus produces a rotational movement of the blade about its leading axis, to vary the pitch. In a modification, the blade is capable of being positioned along the line of the propeller axis. Specification 444,746 is referred to.
Patent GB-478827-A (GB)
Title: Improvements in and connected with thermal cut-outs
IPC: H05B1/02
Filed: 1936-09-10
Abstract: 478,827. Thermal switches. VERITYS, Ltd., and FORTH, J. W. Sept. 10, 1936, No. 24653. [Class 38 (v)] A thermal cut-out for use with electrically heated vessels has a soldered anchorage for an actuating member which is released on overheating, uncoupling of an electric switch being thereby effected. A bush 3 passes through a hole in the base 2 of a vessel and is attached thereto by a nut 5. A cap 34 screwed on the bush, holds the part 24 of the anchorage and forms a liquid-tight joint. A vertical tube 1 screws on the other end of the bush, and through it passes a rod 6 which may be pushed up by means of an insulating knob 8, when a hook 7 at its upper end is snapped into and held in engagement with the part 25 of the anchorage by a bent down leg 29. The member 25 is soldered to a leg 28, and also connected thereto by fine wire 33, to prevent its loss when the anchorage parts. A porcelain holder 19, carrying contacts 17, is free to slide along the tube 1, but is fixed to the rod 6 by a split pin 21, which, passing through vertical slots in the tube 1, prevents rotation of the rod 6. Secured to the tube 1 by setscrews 16, is another porcelain holder 14, whose spring contacts 12 engage with contacts 17 when the rod 6 is held up by the soldered anchorage against the pressure of a spring 23 compressed between the bush 3 and the split pin 21. When the base 2 of the vessel becomes overheated, the solder fuses and member 25 becoming detached allows the rod 6 to be forced down by the spring 23, thereby uncoupling the switch. A new anchorage ready soldered may be inserted by removing the cap 34, and is located in the correct position by the knee of leg 29, engaging in a gap 35 in the bush 3.
Patent GB-1185637-A (GB)
Title: Improvements in or relating to Nuclear Reactor fuel Elements
Inventor: EYE ROYSTON WALTER MASTIN D
IPC: G21C3/26
Filed: 1966-06-22
Abstract: 1,185,637. Fuel elements. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 6 June, 1967 [22 June, 1966; 26 May, 1967], Nos. 28000/66 and 24663/67. Heading G6C. A fuel element comprises particles of ceramic fissile material each having a coating of refractory non-fissile material, which particles are contained in a ceramic container and bonded together in a region about each of their places of contact by a bridge of bonding material of high thermal conductivity, the interspaces between the particles being free of bonding material. In a method of making such a fuel element, particles of uranium carbide each having a coating of pyrolytically deposited carbon are overcoated with a deformable layer of silicon powder by tumbling the particles in a slurry of the silicon powder, a solvent and a binder material, a silicon carbide container is filled with the silicon powder coated particles and the particles are pressed down in the container to deform the layers of silicon powder so that the particles make contact at their carbon coatings. The ceramic container and the particles it contains are then heated to melt the silicon powder so that the molten silicon moves by capillary action to form individual bridges of silicon bonding the particles together in a region about each of their places of contact, and so that by reaction of the silicon with the carbon coating of the particles silicon carbide is formed bonding the particles together at each of their places of contact. The fuel element may be heated in an atmosphere of nitrogen which converts the silicon in the bridges between the particles to silicon nitride. In an alternative method, the particles are overcoated with a solid silicon layer, e.g. by using a heated fluidized bed in which fluidization is by means of a stream of hydrogen containing silicon tetrachloride vapour. The silicon carbide container is first closed at one end by means of a " green " silicon carbide plug formed by diepressing granules made from a slurry of silicon carbide powder and colloidal graphite in a solution of a ceramic binder material. The container is suspended with the plugged end downwards in a L.F. induction furnace containing a crucible of molten silicon which infiltrates the " green " end plug by capillary action and reacts with the carbon. This method of end capping is also used for closing the other end of the container after the bonding of the fuel particles within the container. Other bonding materials, e.g. molybdenum, zirconium or niobium, can be employed and the invention is applicable to the bonding of particles of other fissile materials, e.g. uranium dioxide or nitride, having coatings of silicon carbide, beryllia or alumina.
Patent GB-170276-A (GB)
Title: Improvements in tandem bicycles
IPC: B62K3/12
Filed: 1921-09-16
Abstract: 170,276. Colombo, A. Oct. 11, 1920, [Convention date]. Void jPublished under Sect. 91 of the Act]. Tandems. - In a tandem bicycle of approximately t h e same length as an ordinary bicycle, the rear pedals 1<1> are mounted on an axle rotating freely within the hub of the rear wheel, the movement being transmitted by a chain 6 or other drive to the front pedals 1, which in turn drive the rear wheel by a chain 4 or other device. The axle of the pedals 1<1> rotates freely in a sleeve arranged within the hub of the rear wheel. The chain 4 is adjusted by movement of the rear wheel in the usual way, and the chain 6 by sliding a small chain-wheel 7 along a tube 8 of the frame. The back saddle 9, the tubes 10, 10<1>, and the rear pedals 1<1> may be removed, the machine then being used as an ordinary bicycle. The back saddle 9 may be replaced by a luggagecarrier.
Patent GB-771495-A (GB)
Title: Improvements in fertiliser distributors
IPC: A01C15/00
Filed: 1955-08-22
Abstract: 771,495. Fertilizer distributers. INNES WALKER (ENGINEERING) CO. Ltd., and STIRLING, R. T. Aug. 22, 1955 [Aug. 25. 1954], No. 24699/64. Class 6(1).  In a fertilizer distributer adapted to be mounted on a tractor and comprising a spinner 6 mounted on a vertical shaft 5 which extends into a hopper 3 and carries agitating means to enable material to flow through a discharge outlet in the bottom of the hopper the agitating means comprises bracket members 9, 10, 11, 12 secured at one or more points above the discharge outlet, an arm 12 being pivotally secured to each bracket, the arrangement being that the arms will move outwards by centrifugal action to cut into and break down the mass of material in the hopper. As shown the upper arm has a further arm 13 pivotally attached to the end thereof. A disc 14 is located immediately over the top of each bracket. The shaft 5 is provided with a belt pulley 7 for connection to the tractor power shaft. The shaft may be driven by means of a ground wheel.
Patent GB-169609-A (GB)
Title: Improvements in or relating to automatic electric substation systems
IPC: H02P1/46
Filed: 1920-08-26
Abstract: 169,609. Metropolitan-Vickers Electrical Co., Ltd., (Westinghouse Electric & Manufacturing Co.). Aug. 26, 1920. Systems for conversion employing rotary converters or rotary transformers.-A substation comprising a rotary converter, the starting-up of which is controlled by a voltage relay placed across the direct-current side, is provided with an apparatus supplied with current from the alternating current circuit and supplying sufficient voltage to the direct-current circuit to prevent the operation of the relay under no-load conditions. A rotary converter 3 is connected to an alternating-current circuit 1 through a current-interrupter 4 on the pri-. mary side of a transformer 6 and through an interrupter 8 on the secondary side of the transformer. The circuit of the operating windings 14 and 13 of the interrupter 4 and 8 is controlled by a voltage relay 11 placed across the direct current circuit 2. The relay 11 operates to close its circuit when the load on the circuit 2 is sufficient to reduce the voltage to a predetermined value, and in order that the circuit 2 may be maintained above this value under no-load conditions a generator 17 with a drooping voltage characteristic is connected across the circuit 2 and is driven from the circuit 1 by a motor 16. The motor-generator 16, 17 may be replaced by a rotary converter, and a limiting-resistance placed between it and the circuit 2.
Patent GB-852658-A (GB)
Title: Intervalometer
IPC: G01S7/36
Filed: 1958-08-01
Abstract: 852,658. Stencil switches. ACF INDUSTRIES Inc. Aug. 1, 1958 [Aug. 8, 1957], No. 24826/58. Drawings to Specification. Class 38 (5). A switch is repeatedly operated by an actuating arm which is urged into apertures in a moving, flexible strip. The strip is in the form of an endless band driven at a controlled speed by an electric motor. The switch actuating arm carries a pin which is spring urged into engagement with the belt and which is caused to penetrate into the apertures as they move into position. The action of the belt urges the pin out of the apertures to ride on the belt surface. A switch holding circuit may be simultaneously operated by a solenoid energized from the switch and this circuit may be broken by a second switch operated by indentations on the edge of the belt.
Patent GB-224519-A (GB)
Title: Improvements relating to journal bearings
IPC: F16N19/00
Filed: 1924-10-20
Abstract: 224,519. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Bethel, C.). Nov. 5, 1923, [Convention date]. Capillary-action lubricating; liquid level, maintaining.-In a journal bearing supplied with oil by waste packed in a chamber 5 in which constant level of oil is maintained, on the birdfountain principle, by an air-tight oil reservoir 6, an additional chamber 19, communicating with the chamber 5 through a slot 21, is provided, in order to reduce the variations of the oil level in the chamber 5 caused by expansion of the air in the reservoir, 6. The chamber 19 does not contain waste. The chamber 5 communicates with the reservoir 6 through an opening 8, Fig. 1, and a passage 7 leading under the bearing. The level in the chambers 5, 19 is fixed by a rib 17 in the passage 7. In the form shown in Figs. 4 and 5, the level in the chambers 5, 19 is determined by a diaphragm 29 secured to a wall 27 separating the chamber 5 from a chamber 25 which communicates with the chamber 5 by an opening 28 and which communioates with the upper and lower parts of the reservoir 6 by means of passages 26 and 7 respectively. The diaphragm 29 may be adjusted through an air-tight cover 31.
Patent GB-940138-A (GB)
Title: Improvements in or relating to phosphonic acid
IPC: C07F9/38
Filed: 1962-06-29
Abstract: A phosphonic acid containing at least two phosphorus atoms is produced by acylating phosphorous acid at 50 DEG  to 200 DEG C. with a halide or anhydride of (a) a polycarboxylic acid, (b) an unsaturated carboxylic acid or (c) a monocarboxylic acid having at least seven carbon atoms in the molecule. A halide or anhydride of a dicarboxylic acid may be used in an amount of 0.25 to 1 mol. per mol. of phosphorous acid. The monocarboxylic acid may be aromatic, or an aliphatic monocarboxylic acid containing at least eight carbon atoms in the molecule, used in an amount of 1/2 to 2 mol. per mol. of phosphorous acid. The composition of the phosphonic acids are unknown, but they possess surface active properties, particularly when a long chain carbon residue is present. Numerous examples of acids which may be used as their halides or anhydrides are given.
Patent GB-357733-A (GB)
Title: Process for the extraction of resin from coal
IPC: C09F1/00
Filed: 1930-08-22
Abstract: Resins are extracted from coal by mixing the finely powdered resin-bearing coal with water to form a paste, adding a frothing agent and submitting the mixture to froth flotation.  Higher alcohols, especially amyl alcohol, pine oil, turpentine or cresol may be used as frothing agents.  The resulting resin froth is separated and may be freed from coal particles by re-floating in the presence of potash alum and a further amount of amyl alcohol. The resulting resin may be dissolved in solvents and the varnish thus made purified by centrifuging or filtration.ALSO:Resins are extracted from coal by mixing the finely powdered coal with water to form a paste, adding a frothing agent and submitting the mixture to froth flotation.  Higher alcohols especially amyl alcohol, turpentine, pine oil or cresol may be used as frothing agents.  The resulting resin froth is separated and may be freed from coal particles by refloating in the presence of potash alum and a further amount of amyl alcohol.
Patent GB-294399-A (GB)
Title: Improvements in or relating to conveyors
IPC: B65G21/00
Filed: 1927-09-23
Abstract: 294,399. Davson & Co., Ltd., H. K., and Scudamore, H. D. Sept. 23, 1927. Portable endless-belt conveyers; idler rollers; tensioning; feet.-An endless belt conveyer for transporting crops such as sugar cane is supported by a number of self-contained units 1, 2, 3 each of which is provided with means 33, such as wheels or endless tracks, for moving it. The tensioning unit 2 is provided with flanges 20, Fig. 3, on the upper members of its framework which are engaged by guides 23 provided on the bearings 21 of the drum 22. Each bearing 21 carries an internally threaded tubular member 25 which is engaged by a threaded rod 24 actuated by a crank 26. The unit 2 is anchored by connecting it by ropes, chains, &c. 8 to a transverse member 7 secured to the ground by spikes 6. The drum 22 comprises a canvas shell which is supported by battens 29 fixed to the edges of a. series of discs 27.
Patent GB-1044214-A (GB)
Title: Improvements in or relating to combing brushes
IPC: A45D24/32
Filed: 1963-06-25
Abstract: 1,044,214. Brushes, vacuum cleaners. M. WEBER. June 25, 1963 [June 27, 1962], No. 25154/63. Headings A4F and A4K. In a hair brush in which the stock is divided laterally into a brushing part 3 and a combing part 5, the teeth in the rows 19- 22 of comb elements are set closer together than those in the row 23. The brush may be combined with a vacuum cleaner having a fan 13, fan drive motor 14 and dustcollecting bag. 17. Inlets 6-10 for the suction chamber 11 are provided in the comb part 5. The fan motor 14 may be reversible to deliver heated or cold air, with or without entrained solid or liquid, to the hair. Alternatively, the fan may be replaced by a squeezable or compressed fluid reservoir.