baber/WOPTO huggingface dataset:
Patent GB-371939-A (GB)
Title: Improvements in electric potential dividers
IPC: G01R15/06
Filed: 1931-01-30
Abstract: 371,939. Current and pressure meters. BURCH, F. P., Park House, Atkinson Road, Sale, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Jan. 30, 1931, No. 3087. [Class 37.] For the purpose of reducing distortion due to stray capacity effects in a potential divider wherein division of voltage is effected by resistances or by resistances and series condensers and provided with a delay cable, the current carried by the divider is increased so as to reduce the importance of the capacity effects, by constituting the divider of a high voltage and a low voltage resistance 9, 10 in series, the latter being located, with the former, at the input end of a two-conductor delay cable 5, 6, 7 which is connected across the low voltage resistance 10, the low voltage or output terminals 3, 4 being located at the other end of the cable, and inserting a third resistance 11 in the lead from the junction of the high and low voltage resistances to the corresponding low voltage output terminals 3. The effect of the resistance 11 is to prevent reflection of the signal and the Specification gives formulµ for determining its value. Alternatively, the high and low voltage impedances 9, 10 may each comprise a resistance in series with a condenser and part of the impedance 10 may be disposed at the output end of the delay cable in the form of a resistance and a condenser connected across the terminals 3, 4. In the latter case the impedance 11 may be connected at the output end of the delay cable. A condenser 12 may be connected across the resistance of the low voltage impedance to reduce further the effect of stray capacity. The device is particularly applicable to cathode ray oscillographic measurements in which the time sweeping movement is initiated before the arrival of the wave to be recorded. Specification 371,938 is referred to.
Patent GB-927301-A (GB)
Title: Improvements in or relating to a process for producing supports for the active materials of electrodes
IPC: H01M4/80
Filed: 1961-01-26
Abstract: Sintered supports for the active material of electrodes for alkaline accumulators are formed by oxidizing the surface of jagged metal fibres, wires or chips so that a core of about 1/1000 mm. of metal remains, reducing the oxide and then compacting and sintering the fibres.  The fibres may be iron or iron coated with nickel and/or cadmium by electroplating and powder metals or powder metal oxides such as nickel oxide, copper oxide or iron oxide may be introduced into the compacted fibres either as a suspension in a volatile liquid such as ether, alcohol or benzene or by pressing, vibration or vacuum absorption. An oxygen producing substance, e.g. 1-3% of potassium permanganate can also be added.  The metal fibres are oxidized in an oxygen atmosphere or by a wet chemical treatment and then reduced by heating in hydrogen.  The fibres are compacted in a mould which provides a hollow space or trough in the compact into which the active material is introduced or in a separate embodiment the active material is supported in a trough formed between two support-plates. The moulded compact is then hot-pressed in a hydrogen atmosphere.
Patent GB-134452-A (GB)
Title: Improvements in Built-up Milling Cutters, Reamers, and like Cutting Tools.
Inventor: LONG JAMES
IPC: B23D77/04
Filed: 1919-02-08
Abstract: 134,452. Long, J. Feb. 8, 1919. Milling-cutters; reamers. -The blades of adjustable milling-cutters, reamers, &c. are wedged into dovetailed grooves in the body and locked bv a nut screwed on to a reduced part of the body. The grooves are tapered in depth longitudinally, and one side A<2> is parallel to a radius while the other is inclined, and each side is preferably at right-angles to the adjacent part of the bottom. As shown in Fig. 3, the blades B are secured by wedges C, and both are moved for adjustment by a nut D, Figs. 1 and 6, screwed on a threaded part A<3> of the body, a washer E being interposed between the nut and the ends of the blades and wedges. The washer E may be prevented from rotating by projections G<2>, Fig. 6, fitting the grooves, and may have an axial projection G<3> to bear on each blade and wedge. Screws F or other means prevent the wedges moving when the cutter or reamer is withdrawn forcibly to free it. The grooves being shallow, the body may be formed hollow to serve as a shell reamer.
Patent GB-1024631-A (GB)
Title: Production of aromatic or aromatic hetero-cyclic cyanocarboxylic acids
Inventor: BECKS FRIEDRICH
IPC: C07C255/57
Filed: 1963-01-25
Abstract: Aromatic (including heterocyclic) cyanocarboxylic acids are obtained from the corresponding nitriles having at least one oxidizable side-chain by reaction with oxygen in presence of salts or oxides of one or more metals of variable valency and at least one mole per mole of oxidizable compound of an anhydride of a C2- 4 fatty acid, at 75-150 DEG  C.
Patent GB-894655-A (GB)
Title: Improvements in or relating to tyres
IPC: B60C11/02
Filed: 1959-01-29
Abstract: 894,655. Pneumatic tyres. PIRELLI S.p.A. Jan. 29, 1959 [July 5, 1958], No. 3212/59. Class 144 (2). In a pneumatic tyre having a flexible carcase of radially disposed parallel cords, and a flexible tension-resistant under-tread cincture, the cincture is composed of one or more pairs of separate parallel-cord strips 5a-5b, 6a-6b, 7a-7b disposed with the two strips of each pair offset axially to opposite sides of the mid-plane of the tyre so that they overlap only in the central portion of the cincture. As shown, the two strips of each pair are cross-laid with the same cord angle α, # of between 5 degrees and 30 degrees to the circumferential and the width of the overlap AA<SP>1</SP>, Fig. 2, is not greater than two-thirds the overall width BB<SP>1</SP>, Fig. 2, of the pair. The strips of superposed pairs may be of the same width, cord angle, and degree of overlap as in Fig. 2, or the width of the strips and/or the overlap may vary from pair to pair as shown in Fig. 4. The cincture may be disposed in a tread ring unit of a replaceable tread tyre.
Patent GB-642189-A (GB)
Title: Process for preparing organo-silicon fluorides
IPC: C07F7/12
Filed: 1948-02-04
Abstract: Organo-silicon fluorides are obtained by condensing hydrogen fluoride with an alkoxy silicon compound of the general formula RnSi(OR1)4-n, wherein R represents a saturated acyclic hydrocarbon radical having from 1 to 12 carbon atoms in the ring and having a total of not more than 12 carbon atoms, or an aralkyl radical having a total of not more than 12-carbon atoms, R1 represents a saturated acyclic hydrocarbon radical having from 1 to 5 carbon atoms and n represents an integer from 1 to 3.  The hydrogen fluoride may be provided by a compound which decomposes during the condensation reaction to form hydrogen fluoride.  The reaction may be effected by refluxing under substantially anhydrous conditions.  Detailed examples are given.
Patent GB-646915-A (GB)
Title: Improvements in or relating to apparatus for the grading and screening of materials
IPC: B07B1/28
Filed: 1947-02-04
Abstract: 646,915. Vibrating mechanism. ALDRIDGE & RANKEN, Ltd., ALDRIDGE, F. D., and GREEN, R. W. Feb. 4, 1947, No. 3260. [Class 80(iv)] [Also in Group II] Apparatus for vibrating a screen for sifting materials (see Group II), comprises a pair of unbalanced wheels 30, 31, rotating in opposite directions. The wheels are intergeared on axes lying in a horizontal plane and each embodies an eccentricallyplaced mass 33. One of the wheels is driven from a main motor by a belt drive to a pulley and a flexible coupling is inserted between the axle of the pulley and the axle of the unbalanced wheel. Alternatively the wheel may be driven directly by an individual motor mounted on the vibrating screen.
Patent GB-1455532-A (GB)
Title: Machine for attaching components to a printed circuit board
IPC: H05K13/04
Filed: 1975-01-24
Abstract: 1455532 Assembling components on circuit boards; bending leads INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 24 Jan 1975 [25 Jan 1974] 3266/75 Headings B3A and B3E Apparatus for assembling a component 12 with leads 19 on to a printed circuit board 2 comprises a board support plate 1, a component support mechanism including two spaced parallel support members 6 extending transversely of the plate and each containing a respective parallel groove 17 aligned with a respective hole 22 in the plate, means to move the members 6 towards and away from the plate, punch tools 23 located on the side of the plate remote from the component support mechanism, each aligned with a hole 22, means to operate the punch tools to make holes in the boards and enter the grooves, and means to move the component along the support members towards the plate to insert its leads into the punched holes in the board. In the Figure, the grooves 17 are of key-hole section including rounded portions 17a. The component is laid on a support 8, its leads 19 engaging in L-shaped slots 18 in members 6. In operation, members 6 are lowered to clamp the board against the plate, and to bend the lead ends to extend downwardly inside the grooves. The punch tools are raised to co-operate with the grooves and pierce the board, and are then lowered so that their upper faces 28 merge with recesses 21 in the plate. Support 8 is then withdrawn, and the component is fed down by pusher 14 so that its leads pass through the holes in the board and are bent back towards the under face of the board by contact with recesses 21.
Patent GB-671568-A (GB)
Title: Improvements in or relating to centralised remote control selective receiving devices
IPC: H02J13/00
Filed: 1950-02-10
Abstract: 671,568. Electromagnetic switches. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Feb. 10, 1950. [Feb. 11, 1949] No. 3492/50. Class 38 (v). [Also in Group XXXVIII] The invention relates to receiving apparatus actuated selectively over the power mains by. carrier currents modulated at different selective rhythms as in Specification 631,793 and comprising a vibrating blade relay which resonates at the carrier frequency and passes current at the modulation rhythm to balance wheel relays one of which resonates at the modulation frequency and energizes a vibrating blade driven servomotor to effect the desired control. According to the invention, the vibrating blades of the servo and of the carrier responsive blade relay are energized from the same magnetic circuit. As shown, the winding 4 of an electromagnetically vibrated blade 1, tuned mechanically to the carrier current frequency (e.g. 700 c.p.s.) is connected to the power lines 6, 7 through a series resonant circuit 4, 5. The condenser 5 with a winding 13 forms a filter stopper circuit with respect to the power frequency so that the blade 1 responds only to carrier current, when its contacts 8, 9 open at the modulation of rhythm frequency (e.g. 2 c.p.s.) to remove the short-circuit from series connected balance wheel relays 10, 11. The relays 10, 11 respond selectively according to the rhythm frequency. In the present case relay 10 responds and closes contacts 10a to energize the coil 4 over a two way switch 15 at the power frequency derived from the transformer secondary 14. A second blade 16 tuned to the mains frequency is thereby set into vibration and through a pawl 17 rotates a ratchet wheel 18 which through gearing drives a cam shaft to effect the desired control and at the same time reverse the switch 15 by means of the operative cam 20. The receiver will then respond only to carrier current modulated at the rhythm to which relay 11 is tuned.
Patent GB-155142-A (GB)
Title: Improvements relating to chains and the like
IPC: F16G15/04
Filed: 1920-02-05
Abstract: 155,142. Houdry, J., and Houdry, E. J. Feb. 5, 1920. Addition to 138,632, [Abridgment Class, Fencing &c.] Chain couplings. - The coupling link described in the parent Specification is modified by pivoting the links d at e and forming hook-shaped slots d' therein, the two parts being closed to engage cross pins carried by the chain to be adjusted.
Patent GB-1108519-A (GB)
Title: Improvements in and relating to the cleaning of receptacles
Inventor: CULLINGTON ROY HENRY
IPC: B05B15/652
Filed: 1966-01-26
Abstract: 1,108,519. Spray-producers. DIVERSEY Ltd. 28 Dec., 1966 [26 Jan., 1966], No. 3578/ 66. Heading B2F. [Also in Division A4] A rotary sprayer for use in cleaning tanks comprises a tulbular shaft 17 rotated by an electric motor (not shown) and through which cleaning liquid is supplied to pass through openings (not shown) in a tube 25 rotatable in polytetrafluoroethylene bearings 24 in a transverse tube 21 at the outlet end of the shaft 17. The tube 25 terminates in caps 26 each provided with a single curved tubular nozzle 29, the liquid discharging from which rotates the caps 26 by reaction.
Patent GB-1215693-A (GB)
Title: Improvements in or relating to a route selection system for pneumatic tyred vehicles
Inventor: SEDGFIELD HUGH BROUGHAM
IPC: B61L23/00
Filed: 1967-01-25
Abstract: 1,215,693. Route layout and junctions for guided-track roads. SPERRY RAND Ltd. 18 Jan., 1968 [25 Jean., 1967], No. 3765/67. Heading E1G. In a district public transport system wherein outer areas are served by buses manually steered on ordinary roads whereas inner areas are served by the same buses automatically steered on special high-density narrow tracks which may be elevated and are provided with guideways, the special track is laid out as a plurality of radial tracks interconnected by an inner ring of circumjacent spiral tracks. As shown there are eight spiral and radial tracks A..D', each spiral track extending through 180‹ to join an opposed pair of radial tracks and emerging under or over the adjacent spirals. By making only one change of bus at an appropriate station S 1 ..S 8  a passenger entering the inner ring on one track may emerge on any of the others, the stations having moving platforms so that the buses need not stop. Each radial track has a series of stations communicating with ordinary roads in herringbone or other pattern. Each of a large number of buses may thus travel over a closed circuit which is partly on ordinary roads (manual steering) and partly on highdensity tracks (automatic steering). Suitable track control and guidance systems are described in Specifications 1151932, 1211539 and 1212832.
Patent GB-436442-A (GB)
Title: Improvements in salt bath furnaces
IPC: F23C99/00
Filed: 1934-02-05
Abstract: 436,442. Crucible furnaces. SOUTH METROPOLITAN GAS CO., and CHANDLER, D., 709, Old Kent Road, London. Feb. 5, 1934, No. 3794. [Classes 51 (i) and 51 (ii)] In a salt bath furnace of the kind in which the heating-chamber around the melting-pot is divided by a baffle 5 into concentric compartments 6, 7 connected at the upper end, the outer compartment being fired by burners 11, and the inner leading .to the exhaust flue 14, the burners are of the luminous flame type and the baffle is made of material having a high factor of conductivity, such as metal or carborundum. The burners are carried by a spider 9 and are supplied with gas through a pipe 10 having a valve 23 interconnected with a damper 16 in the exhaust flue the arrangement being such that the correct amount of air will be drawn into the combustion space 6 when the valve is fully opened, and also when it is closed down to normal supply position. An ignition opening 28 for a pilot burner 27, and a fusible plate 18 on the exhaust pipe 14, are provided.
Patent GB-800490-A (GB)
Title: Insecticidal compositions
IPC: A01N29/12
Filed: 1957-02-04
Abstract: An insecticidal, fungicidal, herbicidal or bactericidal composition comprises D.D.T. and as a synergist one or more compounds of the formula <FORM:0800490/VI/1> in which R is an n-alkyl radical having from 2 to 7 carbon atoms. There may also be included additional active ingredients, e.g. other insecticides such as pyrethrins, allethrin, lindane, methoxychlor, D.D.D. (Rhothane), chlordane, aldrin, dieldrin, endrin, or organic phosphorus insecticides; acaricides such as benzyl benzoate or chloroalkyl-aryl-oxyalkyl-sulphites; fungicides, herbicides, bactericides, additional wetting, spreading, adhesive or thickening agents, emulsion stabilizers, solid inert carriers as wettable or non-wettable powders. Specified active ingredients are N,N-diethyl-p-chlorobenzene - sulphonamide, N,N - di - n - propyl - p - chlorobenzene - sulphonamide, N,N - di - n - butyl - p - chlorobenzene - sulphonamide, N,N-di - n - amyl - p - chlorobenzene - sulphonamide, N,N - di - n - hexyl - p - chlorobenzene - sulphonamide, N,N - di - n - heptyl - p - chlorobenzene - sulphonamide.
Patent GB-1047795-A (GB)
Title: Improvements in or relating to the polymerisation of formaldehyde
IPC: C08G2/00
Filed: 1964-01-29
Abstract: Formaldehyde is polymerized under anhydrous conditions in the presence of a catalyst the molecules of which contain one atom of trivalent or pentavalent phosphorus and one or more amino groups. Specified catalysts include the mono-, di- or tri-phosphorous or phosphoric esters of amino-alcohols or amino-phenols, and the phosphorous, phosphinous, phosphonic, or phosphinic mono- or di-esters of amino alcohols or aminophenols.  The examples use compounds of formulae <FORM:1047795/C3/1> <FORM:1047795/C3/2> <FORM:1047795/C3/3> <FORM:1047795/C3/4> <FORM:1047795/C3/5> <FORM:1047795/C3/6> The polymerization may take place in liquid or vapour phase.
Patent GB-469914-A (GB)
Title: Improvements in the recovery of valuable organic products in particular liquid products, from solid carbonaceous substances by pressure extraction
IPC: C10G1/08
Filed: 1936-02-08
Abstract: The pressure extraction of solid carbonaceous materials, e.g coal, peat, bituminous shales, in presence of solvents is carried out in presence of catalysts comprising heavy metals having a sp. gr. of 5 or more or their compounds together with acids or substances splitting off acids under the reaction conditions.  The materials may be pre-treated with the acids and then extracted in presence of the metals or their compounds.  Heavy metals specified are tin, lead, germanium, iron, nickel, cobalt, zinc, vanadium, chromium, molybdenum, tungsten, titanium, and manganese. Compounds specified comprise oxides, sulphides, salts, halides or organic compounds, e.g. oxalates.  The acids used may comprise mineral or organic acids, e.g. acetic acid, while substances splitting off acids are non-metal halides, e.g. halogen compounds of selenium, tellurium, sulphur, phosphorus or boron or organic halogen compounds, e.g. halides of methane, ethylene, naphthalene, anthracene, &c.  Wetting agents, e.g. salts of sulphonic acids may also be added and volatile sulphur compounds, e.g. hydrogen sulphide, carbon disulphide, or ammonium sulphide.  Alkaline constituents of the coal may be neutralized by impregnation with acid.  Solvents specified comprise benzines, middle oils, tars, and cyclic organic compounds, e.g. tetrahydronahhthalene. Gas coal is impregnated with a solution of tin oxalate in ammonium oxalate solution and mixed with an equal amount of tetrahydronaphthalene.  The mixture is heated to 400 DEG  C. for 3 hours under a pressure of 85 atmos. in presence of 1 per cent ammonium chloride.
Patent GB-1437676-A (GB)
Title: Method and machine for cement lasting of shoes
IPC: A43D25/18
Filed: 1974-07-22
Abstract: 1437676 Shoe lasting machines INTERNATIONAL SHOE MACHINE CORP 22 July 1974 [6 Aug 1973] 3934/75 Divided out of 1437675 Heading A3B [Also in Division B2] A shoe lasting machine as described in Specification 1437675. The claims of this Specification being directed towards the operation of the cementing nozzle (see Division B2).
Patent GB-1432723-A (GB)
Title: Dispenser for flat articles
IPC: B65D25/56
Filed: 1974-01-28
Abstract: 1432723 Cartons M MICHEL 28 Jan 1974 [26 Jan 1973] 03946/74 Heading B8P A cardboard carton for dispensing flat articles, which may be paper hinges, is in the form of a drawer and shell container with the articles being urged towards an end aperture for withdrawal. The articles 1 are urged by an elastomeric band 25 (or by a spring) and a pusher 5 towards an end 21 of a drawer 4 located in a shell 3, the drawer and shell each having a dispensing aperture 14, 15. A transparent window 36 and mark 37 co-operate with a scale 39 on the pusher to indicate the number of articles remaining in the carton.
Patent GB-300435-A (GB)
Title: Improvements in or relating to pipe flashing construction
IPC: E04D13/147
Filed: 1928-02-08
Abstract: 300,435. Sherlock, R. Feb. 8, 1928. Laying and supporting pipes and tubes.-Pipe flashing to hold caulking material around a pipe where it passes through a roof or wall consists of a tapered thimble portion 12, Figs. 1 and 2, housed in the roof or wall, and an external flange 15. The thimble is provided with fingers 19 which may be broken off if desired, and the flange is scored with grooves 16, 17, 18 along which it may be severed to fit the thimble portion close against an adjacent wall or other projection. Fig. 4 shows the application to a roof, the joint being completed with caulking 26. Fig. 6 shows a modification for use on substantially flat roofs or floors.
Patent GB-271781-A (GB)
Title: Improvements relating to locks or fastenings applicable to the doors of motor cars and the like
IPC: E05B9/08
Filed: 1927-02-12
Abstract: 271,781. Bunn, C. W. Feb. 12, 1927. Latches, sliding.-A covering-member or members 20 is fitted over the attachment lugs or flanges 14 of the cover plate or casing 10 of a lock or door fastening so as to secure and hide the edges of the upholstery or door covering 25. The member 20 may be U-shaped to engage three sides of the casing and may be attached by the screws which secure the casing.
Patent GB-534511-A (GB)
Title: Improvements in and relating to windshield wipers
IPC: B60S1/28
Filed: 1940-03-04
Abstract: 534,511. Windscreen wipers. TRICO PRODUCTS CORPORATION. March 4, 1940, No. 4051. Convention date, April 20, 1939. [Class 138 (i)] A pair of wipers for inclined screens are mounted on opposite sides of a shaft and are provided with common spring means for holding them in contact with the screens. The wipers 30, Fig. 2, for the screens 11, 12, are mounted on a central shaft driven by a motor 18 mounted on the partition 13. The arms 27, 28 are pivoted at 29, Fig. 4, to a central part 21 clamped to the shaft 19 and are connected by springs 35.
Patent GB-328968-A (GB)
Title: Improvements in or relating to sound and picture reproducing apparatus
IPC: G03B31/02
Filed: 1929-02-07
Abstract: 328,968. Tonbild-Syndikat Akt.-Ges. Jan. 16, 1929, [Convention date]. Optical sound-reproducing apparatus associated with kinematographs.-A film sound-producer comprising a light-sensitive electric cell 11 is arranged as a unit in the bight of the film between the maltese cross 7 and the sprocket 16 of the picture projector, the film passing over and driving a drum 10 with flywheel inertia to eliminate irregularities due to the picture projector drive, a long steadying film guide 8 and spring-pressed rollers 18, 19 being provided in advance of the sound reproducer. 1 is the soundfilm illuminating apparatus which projects light through the film and through a slit in the drum 12. The unit can be applied to existing kinematograph projectors, on the opposite side to the attendant's position.
Patent GB-1222471-A (GB)
Title: Improvements in or relating to the preparation of calcium carbonate
Inventor: SISSON CECIL GEORGE
IPC: G03G9/10
Filed: 1969-01-24
Abstract: 1,222,471. Calcium carbonate filled polymers. DIAMOND SHAMROCK CORP. 24 Jan., 1969, No. 4184/69. Heading C3P. [Also in Division C1] Specially prepared (see Heading C1A) small particle CaCO 3  is added as a filler to ethylenepropylene copolymer elastomers and styrenebutadiene rubber in the ratios of 1: 1 and 1À5: 1 respectively, and are cured at 307‹ C., to give improved tensile and tear properties.