baber/WOPTO huggingface dataset:
Patent GB-892959-A (GB)
Title: Improvements in oscillators
IPC: H03B5/24
Filed: 1960-09-13
Abstract: 892,959. Transistor oscillating circuits; keying carrier frequencies. WESTINGHOUSE ELECTRIC CORPORATION. Sept. 13, 1960 [Jan. 27, 1960], No. 31523/60. Classes 40(5) and 40(6). [Also in Groups XXXVI and XL(b)] A narrow band rejection filter 54 of the type disclosed in Specification 882,974, comprising a distributed resistance and capacitance structure in combination with further resistance 51 is used in a feedback path around an amplifier 55 to form an oscillator. The amplifier 55 may be of the transistor type and may be structurally combined with the distributed resistance and capacitance structure. The resistance 51 in the filter may be variable and used to indicate a particular value of a variable quantity, e.g. position, strain, temperature, by use of a suitable resistance element, utilizing the property of the oscillator that for values of the resistance 51 greater than a particular value oscillations cease. The resistance 51 may alternatively be replaced by a direct connection to earth, the network 54 being completed by a condenser, which may be variable, interconnecting its input and output terminals.
Patent GB-670892-A (GB)
Title: Improvements in safety gaps for the protection of electrical circuits
Inventor: VEALE ROBERT HERBERT
Filed: 1949-12-08
Abstract: 670,892. Protective arrangements. BRITISH THOMSON-HOUSTON CO., Ltd. Dec. 8, 1950 [Dec. 8, 1949], No. 31550/49. Class 38 (iv). In a voltage limiter of the kind in which the circuit to be protected is shunted by electrodes 13, 15 normally separated by a thin layer of paper or other insulation 23 which breaks down under excessive voltage, the electrode 15 is movable in relation to the other electrode (through a pivoted or hinged connection 26, 27) so that upon destruction of the insulation 23 the electrodes are brought into direct contact the contact pressure increasing with increasing current through the electrodes on account of the electromagnetic forces arising from a current loop formed by the electrode 15 and a rigid conductor 10 which carries electrode 13. The electrodes may have plane faces or, as shown, one electrode may be in the form of a renewable button having a curved surface which co-operates with a flat surface of the other electrode. A spring 24 normally biases the electrodes towards each other. The limiter may be used for the earthing of transformer neutral points, or for guarding against high voltage should break-down occur between windings of transformers.
Patent GB-315674-A (GB)
Abstract: 315,674. Fiddes, J. Feb. 16, 1928. Current-duration meters.-Apparatus for recording the time duration of load current taken bv electric motors comprises electromagnetic relays in the motor circuits adapted to be opened and closed by the motor current to energize the circuits connected with the time recording apparatus, which apparatus comprises a synchronous master clock and secondary clock system. As shown, the relays 1, 2, 3 in the motor circuits 1<a> - - 1<c> close contacts 1<1> - - 3<1> and bring into circuit the secondary clocks 5 - - 7 which are electrically connected with the master clock 8<1> through bus-bars 9. Specification 278,898 is referred to.
Patent GB-441424-A (GB)
Title: Improvements relating to a resilient spring packing for the rollers of laundry ironing machines
IPC: D06F83/00
Filed: 1934-11-03
Abstract: 441,424. Hollow rollers. MANLOVE, ALLIOTT, & CO., Ltd., Bloomsgrove Works, and PHILPS, A. M., 3, Burlington Road, both in Nottingham. Nov. 3, 1934, No. 31589. [Class 34 (i)] [See also Groups VIII and XXXII] In an ironing-machine wherein the roller clothing 5 is supported on the roller by springs 3, in order to prevent undue compression of the springs or deformation of that part of the roller sitting in the bed of the machine the springs are initially compressed by an amount in excess of or approximately equal to that which would be caused by the weight of the roller sitting in the bed and normally acting thereon. Caps 1 are inserted in the upper ends of the springs and are provided with flanges 2 acting on the springs. Screws 4 pass through the bases of the caps and engage the roller shell whereby the springs may be initially compressed but may be further compressed by the passage of the goods being ironed, the caps 1 then sliding along the shanks of the screws.
Patent GB-1454689-A (GB)
Title: Energy regulator
IPC: H01H37/22
Filed: 1974-07-17
Abstract: 1454689 Thermal switches; mechanical switches AUSTRALIAN CONTROLS INDUSTRIES PTY Ltd 17 July 1974 31678/74 Heading H1N A thermally responsive actuator 8 actuates contacts 38, 39, Fig. 4, through a lever 12 movable about a fulcrum 13, the position of fulcrum 13 being adjustable by cam 11. Bimetal 8 is U- shaped, one leg of the U carrying a heater coil 9 and being mounted between bracket 17 and adjusting screw 10 and the free end of the other leg 15 having on one end of lever 12, the other end of which bears on a dimple 47 in a trifurcated blade spring 41 carrying movable contact 39. Rotation of spindle 22 rotates cam 11 the upper surface of which has a cam track 26 against which bears cam follower 27 integral with fulcrum 13. Lugs (31), Fig. 6 (not shown) on the inner end of the spindle 22 fit into a slot (29) in cam 11 so that spindle 22 and cover 28 can be removed as a unit without disturbing the rest of the switch. A radial cam surface on the side of cam 11 also operates two auxiliary switches 5, 48, Fig. 1 (not shown) when spindle 22 is rotated.
Patent GB-710070-A (GB)
Title: New pyrimidine compounds and processes for their preparation
IPC: C07D239/48
Filed: 1952-12-15
Abstract: The invention comprises amoebicidal compounds having the formula: <FORM:0710070/IV (b)/1> and their acid addition salts, where X is a chlorine atom or a nitro, amino or methoxy radical, and X1 is a hydrogen or chlorine atom or a nitro or methoxy radical.  The compounds may be prepared (a) by reacting with ammonia at a temperature of 50-120 DEG  C., the corresponding 2-amino-4 : 6-dichloropyrimidine, 2-acetamido - 4 : 6 - dichloropyrimidine or 2 : 4 : 6 - trichloropyrimidine compound; (b) by reacting phosphorus oxychloride with the corresponding 6-hydroxypyrimidine compound, preferably wherein the amino groups are protected by acetylation, when subsequent hydrolysis is required; (c) in certain cases, by introducing one or more substituents at X and/or X1 of the phenyl nucleus of 2 : 4-diamino-5-phenyl-6-chloropyrimidine.  In the examples: (1) 2 : 4 - diamino 5 - (31 : 41 - dichlorophenyl)-6-chloropyrimidine is prepared by heating 2 : 4 : 6 - trichloro - 5 - (31 : 41 - dichlorophenyl) - pyrimidine with ammonia in the presence of ethanol; (2) 2 : 4-diamino - 5 - (41-chlorophenyl) - 6 - chloropyrimidine is prepared from ammonia and 2-acetamido-4 : 6-dichloro - 5 - (41 - chlorophenyl) - pyrimidine; (3) 2 : 4 - diamino - 5 - (31 : 41 - dimethoxy phenyl)-6-chloropyrimidine is prepared from ammonia and 2 : 4 : 6-trichloro-5-(31 : 41-dimethoxyphenyl)-pyrimidine; (4) 2 : 4-diamino-5 - (41 - nitrophenyl) - 6 - chloropyrimidine is prepared by nitrating the 5-phenyl compound with potassium nitrate; (5) 2 : 4-diamino-5-(41 - aminophenyl) - 6 - chloropyrimidine is prepared by reducing the nitro compound of example (4) with tin and conc. HCl.  The starting materials of examples (1) and (3) are prepared by the action of phosphorus oxychloride on the corresponding substituted bartiburic acid.
Patent GB-1146659-A (GB)
Title: Improvements in electric cable
IPC: H01B7/29
Filed: 1966-07-14
Abstract: 1,146,659. Cables. GENERAL ELECTRIC CO. 14 July, 1966 [12 Aug., 1965], No. 31700/66. Heading H1A. A cable capable of functioning for a short period at very high temperatures, e.g. 1600 C., comprises a pair of stranded wire conductors mutually insulated and twisted together, a plurality of layers of organic insulating material wrapped tightly around the twisted pair and a closely conforming sheath of cured (synthetic) rubber. The cable is used to lower a thermocouple and the sampling vessel into a bath of molten steel. As shown conductor 2 comprises sixteen copper strands while conductor 3 comprises seven copper 2% nickel alloy strands to balance extraneous E.M.F's produced at the junctions between the conductors and the thermocouple wires. The conductors are tightly wrapped with cotton strands as at 4, 5 and coated with styrene butadiene synthetic rubber which is immediately cured. The pair twisted as shown, and fillers 8, 9 which may be twisted paper with cellulose threads or stranded jute with steel threads are tightly bound with cotton threads 10 and layers of paper tape 14. A further layer of synthetic rubber 15 is extruded over the tape and cured. Rubber layers 6 and 15 may incorporate carbon black and layer 7 a monazo type organic red dye for identification purposes.
Patent GB-230914-A (GB)
Title: Double acting two cycle internal combustion marine heavy oil engine
IPC: F02B75/28
Filed: 1923-12-19
Abstract: 230,914. Groves, A. T. Dec. 19, 1923. Two-stroke-cycle engines.-In a single-cylinder double-acting engine fixed cylinder heads are replaced by auxiliary pistons B, B<2>. These are connected together by side links L and to cranks on each side of the main crank which is actuated by the. main piston B. The exhaust ports G are controlled by the main piston B and the scavenging or air-inlet ports D', D<2> by the auxiliary pistons B<1>, B<2>, the ports D<1>, D<2> being connected by a pipe W. Fuel is injected at the valves H, two of these being provided in the combustion chamber nearer the crank shaft, and a single valve in the other.
Patent GB-1197653-A (GB)
Title: Method of Preparing Cyclohexane from Aromatic Hydrocarbons by a Successive Dealkylation and Hydrogenation on Nickel Catalysts
Inventor: SETINEK KAREL
IPC: C07C13/18
Filed: 1968-07-03
Abstract: 1,197,653. Cyclohexane. CESKOSLOVENSKA AKADEMIE VED. 3 July, 1968 [14 Aug., 1967], No. 31809/68. Heading C5E. Cyclohexane is prepared from an aromatic hydrocarbon by successive dealkylation and hydrogenation, the process comprising passing a feedstock comprising aromatic hydrocarbon and H 2  in a molar ratio of 1: 4 to 1: 10 at 300- 350‹ C. over a nickel-on-alumina catalyst, thereby dealkylating the aromatic hydrocarbon, cooling the reaction mixture and passing it over the same catalyst at 150-200‹ C. thereby hydrogenating the benzene ring of the aromatic hydrocarbon. The catalyst may comprise 40-55% Ni and 60-45% Al 2 O 3 . The cyclohexane may be separated from the final product by distillation and the residue which may contain methylcyclohexane recycled to the dealkylation step where it is dehydrogenated to give toluene which forms part of the aromatic feedstock.
Patent GB-1512666-A (GB)
Title: Use of urea derivatives as selective herbicides in cereal
IPC: A01N47/30
Filed: 1975-07-30
Abstract: 1512666 Protecting cereal crops BASF AG 30 July 1975 [31 July 1974] 31865/75 Heading A5E A process for protecting cereal crops from weeds comprises applying to the crop area before or after sowing the crop plants a selectively phytotoxic amount of a urea of the formula: wherein R<SP>1</SP> denotes methyl or ethyl and R<SP>2</SP> denotes methyl, methoxy, butynyl or hydrogen. The preferred active compounds are 1 - (3, 5 dichloro - 4 - methoxy) - phenyl - 3 - methyl urea; 1 - (3, 5 dichloro - 4 - ethoxy) phenyl - 3 - methylurea; 1 - (3, 5 dichloro - 4 - methoxy) - phenyl - 3 - methyl - 3 - methoxyurea; 1 - (3, 5 dichloro - 4 - methoxy) - phenyl - 3, 3, dimethylurea; 1 - (3, 5 dichloro - 4 - ethoxy) - phenyl - 3, 3, dimethylurea and 1 - (3, 5 dichloro - 4 - ethoxy) - phenyl - 3 - methyl - 3 - (2 - butynyl) - urea. The active compounds are used as compositions with the usual carriers and additives as well as other herbically active compounds.
Patent GB-424441-A (GB)
Title: Improvements in draining boards
IPC: A47L19/02
Filed: 1933-11-16
Abstract: 424,441. Draining - boards. STOCAL ENAMELS, Ltd., 202, Fazeley Street, Birmingham, and GRAINGER, W. S., 358, Shobnall Street, Burton-on-Trent. Nov. 16, 1933, No. 31934. [Class 28 (ii)] The upper surface of a draining - board is furnished with a number of narrow ribs or fillets 6<c>, parallel with each other, or converging towards the draining end of the board, the ribs ending short of the draining edge to leave a plain surface 6d on which are arranged protuberances 6<e> which prevent articles from slipping over the edge of the board. The edges 6<a> are of inverted semicircular channel form, and the edge 6b is bent into a downward curve to form a draining lip. The drainer may be made of metal, porcelain, earthenware or wood. When it is made of wood, the ribs and protuberances may be made separately of wood or metal, and nailed or glued in position. The ribs 6<c> may decrease in height from the draining-end of the board to the remote end.
Patent GB-159686-A (GB)
Title: Improved means for starting internal combustion engines
IPC: F02N99/00
Filed: 1919-12-19
Abstract: 159,686. George, F. C. Dec. 19, 1919. Starting.-A compressor B driven by an electric motor A compresses air into a container D and combustible mixture into a container E, the air being used to scavenge the engine cylinders before admitting the mixture for starting. The compressor is provided with a piston valve F, Figs. 1 and 4, normally held by a spring F<16> in the position shown, in which passages F<3>, F<4> in the valve are in communication with mixture pipes leading from the carburettor to the compressor and from the compressor to the container E. When the pressure in the container E is sufficient, the valve F is forced by the pressure into the position in which the mixture pipes are cut off and air pipes opened by passages F<5>, F<6> in the valve, so that air is then compressed into the container D. When both are fully charged, the motor current is automatically interrupted by the movement of a contact member F<21> on the valve F and a similar device G on the air-container. Starting is effected by turning an auxiliary cam shaft P carrying a chain-wheel Q and a chain R, the ends of which are connected to cords T, S passing over pulleys V, U to valves D<1> leading from the air and mixture containers to the engine. When the shaft P is turned in one direction, the air valve D' and the exhaust valves are opened, so that air from the container D scavenges the cylinders. The shaft P is then turned in the other direction, closing the valve D<1> and the exhaust valves and opening the mixture valve. An ignition magneto C may be clutched to the motor A at the same time by a clutch K actuated by linkage from the mixture valve. The air and mixture from the containers may pass through an engine-driven distributing-valve comprising a distributor in the ignition circuit.
Patent GB-792822-A (GB)
Title: Improvements in or relating to tool holders
IPC: B23B31/16
Filed: 1955-11-08
Abstract: 792,822. Lathe details. LARSON, R. E. Nov. 8, 1955 [Nov. 12, 1954], No. 31958/55. Class 83 (3). A tool-holder for automatic screw machines &c. comprises a body portion with a shank 7, Fig. 4, and a flange 8. The latter is screwed to receive a pair of clamping bolts 14 which clamp a pair of jaw members 11, 12, Fig. 3. Slots 11a, 12a are provided in the jaw members for the clamping bolts which are of smaller diameter than the slots to allow of limited transverse adjustment. The jaws are interconnected by screws 13a so that they may be tightened on the shank of a drill, tap holder or reamer.
Patent GB-1006073-A (GB)
Title: Electronic telegraph relays
Inventor: BOWSHER EDWARD ALBERT HENRY
IPC: H04L25/24
Filed: 1960-09-19
Abstract: 1,006,073. Electronic gating circuits. PLESSEY CO. Ltd. Dec. 19, 1961 [Sept. 19, 1960], No. 32142/60. Headings H3P and H3T. An electronic relay comprises an amplifier 1 having a feed-back path between output and input, the feed-back path including an electronic gate 10 which interrupts the feed-back until an input of predetermined polarity is applied to open it. As described, a positive feed-back path is connected between output transformer 3 and input transformer 2 of a transistor amplifier 1 and includes the gate formed by diodes 11, 12, 17, 18. Application of a D.C. signal of correct polarity between terminals 13, 14 opens the gate and the resulting positive feed-back causes oscillations which are rectified by the diodes 21, 22 to produce a D.C. signal to operate a teleprinter magnet connected as a load. Bi-directional transistors may be used as switches in the gate. For bipolar signals two similar circuits may be connected to the input, Fig. 2 (not shown), to be switched on alternatively by oppositely poled input signals, and so produce oppositely poled output signals.
Patent GB-484726-A (GB)
Title: Improvements relating to the coating of ferrous articles
IPC: C23C22/73
Filed: 1936-11-24
Abstract: 484,726. Forming phosphate coatings on metals. PYRENE CO., Ltd. (Parker Rust Proof Co.) Nov. 24, 1936, No. 32182. [Class 82 (ii)] In applying phosphate coatings to ferrous articles by immersion in a solution containing at least one acid phosphate not oxidizable in air, the ferrous phosphate content of the solution is kept low by withdrawing solution from the tank, spraying it through the atmosphere, and returning it directly or indirectly to the tank. The ferrous phosphate is oxidized to ferric phosphate during the spraying. The invention is advantageously applicable in the case of zinc phosphate solutions, composed for example of sodium nitrate, zinc dihydrogen phosphate, and copper carbonate. In the apparatus shown, solution drawn from the tank by the motor-driven pump 3 issues in jets from pipes 8, 9 in the tank, the jets striking the articles being lowered into the solution, and so warming them, and also as they are raised out of it, thus removing adherent sludge.
Patent GB-744724-A (GB)
Title: An improved apparatus for applying and treating coats of paint, varnish or the like
IPC: B05B7/22
Filed: 1953-11-20
Abstract: <PICT:0744724/III/1> Apparatus for applying and treating paint, varnish and other coatings comprises an infra-red radiator in the form of a hand radiator with a spraying device for the coating to be applied, the spray being in the same direction as the infra red radiation. A spray gun a has a handle piece with pressure medium supply pipe b and coating container c.  A spray nozzle d is at the centre of a radiator e having annular infra red heating members f secured thereto.  Heating elements h are situated behind the radiator to heat the layer of air enclosed between the radiator and a screen i having apertures k for the entry of air and incurved ends.  The inner part of the radiator also has an aperture g.  Coating and pressure supply pipes l, m may be located between the radiator and screen and have outlets at the nozzle.  An ultra violet radiating member n may be secured to the radiator.
Patent GB-791903-A (GB)
Title: Road vehicle power transmission system
Inventor: CARYWILKS MAURICE FERNAND
IPC: B60K17/10
Filed: 1954-11-09
Abstract: 791,903. Motor-vehicle hydraulic driving gear. ROVER CO., Ltd. Nov. 7,1955 [Nov. 9, 1954], No. 32358/54. Class 79(2) A road vehicle driving system comprises an engine b, engine-driven gearing (including a change speed gear c) for actuating one pair of ground wheels a, an engine-driven pump f supplying hydraulic motors e for actuating another pair of ground wheels d and a driver-operable valve g for controlling the hydraulic motors. As further shown in Fig. 1 the valve g in its closed position directs liquid from the pump through a by-pass pipe h The liquid supply and return pipes for the motors e are interconnected by a pipe i having a non-return valve j to give a free wheel effect for the wheels d. In another embodiment, Fig. 2 (not shown), the hydraulic motors e are connected in parallel with the pump and are controlled by two driver-operable valves whereby practically the whole available hydraulic torque can be applied to one of the associated ground wheels, by-pass valves being provided to enable the motors to serve as brakes.
Patent GB-190466-A (GB)
Title: Improved method of protecting rectifier installations
IPC: H02H7/12
Filed: 1922-11-27
Abstract: 190,466. Akt.-Ges. Brown, Boveri, et Cie. Dec. 14, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Vapour apparatus, arrangements of. - Vapour rectifier installations are protected against backignitions or short-circuits between the anodes 'by providing, on the alternatting-current side of the rectifiers, quick-acting circuit-breakers in which the separation of the switch contacts takes place in less than a twentieth of a second after the current limit is exceeded. Such circuit-breakers may also be provided on the direct-current side of the rectifiers.
Patent GB-755193-A (GB)
Title: Dynamo-electric machine winding insulator
IPC: H02K3/38
Filed: 1954-11-09
Abstract: 755,193. Insulation for dynamo-electric machines. GENERAL ELECTRIC CO. Nov. 9,1954 [Nov. 18, 1953], No. 32417/54. Class 35. The separate coils in a slot of a dynamoelectric machine are separated by an expansible longitudinal insulator 11 having at its ends expansible portions 6 which are located between the end turns. Fig. 3 shows a perspective view of the complete insulator having spaced centre portions 11 for positioning between the coils in the slots and crimped end portions 6 for positioning between the end turns. The centre' portions 11 are creased along a line 12 in order to give these portions a V-shaped cross-section, though a U-shaped section can also be given to them. The insulator consists of a relatively resilient material, e.g. polyethylene terephthalate so that once the centre portion 11 of the insulator is inserted in a slot it will expand to abut against the slot sides. Fig. 4 shows part of an induction motor stator core in which one phase winding is already accommodated in the slots 3 with the insulators 5 properly in place in the slots. The second phase winding is then inserted in the slots and the slots are finally closed by U- insulators.
Patent GB-1283637-A (GB)
Title: Thermoplastic moulding compositions based on saturated polyesters
IPC: C08K3/00
Filed: 1970-07-06
Abstract: 1283637 Polyester moulding composition FARBWERKE HOECHST AG 6 July 1970 [4 July 1969] 32550/70 Heading C3R A thermoplastic moulding composition comprises (a) a linear saturated polyester of an aromatic dicarboxylic acid and optionally up to 10% by weight of an aliphatic dicarboxylic acid, or of a hydroxy carboxylic acid, with a saturated aliphatic or cycloaliphatic diol, (b) from 0À05 to 2% by weight, based on the polyester, of an inert, inorganic solid material having a particle size of less than 5 microns, and (c) from 0À02 to 8% by weight, based on the polyester, of an alkali metal paraffin monosulphonate R 1 SO 3 M in which R 1  is a straight or branched chain alkyl group having 8 to 30 carbon atoms, and M is an alkali metal, and which may contain up to 0À5% by weight, based on the sulphonate, of an alkali metal paraffin disulphonate MO 3 SR 2 SO 3 M, in which R 2  is a straight or branched chain alkylene group having 8 to 30 carbon atoms, and derived from the same paraffin and alkali metal as the mono-sulphonate, or from 0À02 to 8% by weight based on the polyester, of an alkali metal olefin sulphonate R-CH=CHSO 3 M in which R is a straight or branched chain alkyl or aralkyl group having 6 to 28 carbon atoms. Component (b) may be glass powder, talc, kaolin, magnesium oxide, antimony trioxide, titanium dioxide, aluminium oxide, calcium carbonate or calcium magnesium aluminium silicate. The polyester is preferably polyethylene terephthalate or polycyclohexane- 1,4-dimethylol terephthalate.