baber/WOPTO huggingface dataset:
Patent GB-1056579-A (GB)
Title: The manufacture of benzophenones and pyridophenones
IPC: B01J23/40
Filed: 1964-06-19
Abstract: Compounds I <FORM:1056579/C2/1> where A is pyridyl, phenyl or p-halophenyl, are prepared by hydrogenating anthranils II in the presence of a catalyst which is palladium metal on a substrate consisting solely of ferric hydroxides, carbonates, basic carbonates or mixtures thereof, the gram-atomic proportion of palladium to ferric iron being substantially 3-8 Pd to 1 Fe; said anthranils being preparable by reaction of p-nitro-halobenzenes and compounds A-CH2-CN in the presence of a base.
Patent GB-443784-A (GB)
Title: Improvements in or relating to braking apparatus for trailer vehicles
IPC: B60T7/20
Filed: 1934-09-04
Abstract: 443,784. Trailer vehicle brakes. PROJECTILE & ENGINEERING CO., Ltd., New Road, Wandsworth Road, London. Sept. 4, 1934, No. 25448. Convention date, March 28. [Class 103 (i)] Trailer-vehicle brakes of the kind that are applied by the overrun of the trailer when the towing vehicle is retarded comprise a lever connected to the trailer draw-bar and connected to the brakes, a second lever pivoted to the first lever and also connected to the brakes and a non-fluid frictional shock-absorber for preventing too sudden application and release of the brakes and comprising a damping device disposed in the central plane of the first lever. The lever 3 pivoted at 4 to the trailer forecarriage 1 is connected at 5 to the draw-bar 2 and by the chain 24, rod 22 and equalizer bar 21 to the cam-shaft levers 16 of the brakes. The lever 3 as shown is of U-form at its upper part. The shock-absorber comprises a damper bar 25 connected to lever 3 and sliding between a pair of spring-pressed friction members 26, 27, the pressure being adjustable by nuts 38. The brakes may also be applied by the lever 7 pivoted at 8 to the lever 3 and connected by the chain 23 to the rod 22. The lever 7 may be operated by hand or by a chain 11 extending to the towing vehicle whereby the brakes are applied in the event of the trailer breaking away from the tractor. The lever 7 may be locked in an applied position by a pawl operated by a lever 10 and engaging a ratchet 6 on the lever 3. Operation of the brakes by the lever 3 can be prevented when desired by the engagement of a pawl 42 with a stop 40 on the rod 25. The pawl may be controlled from the driver's cab by a cable 43.
Patent GB-942342-A (GB)
Title: Poly-ª -olefine compositions and stabilizer combinations therefor
IPC: C08K5/372
Filed: 1961-07-14
Abstract: A polyolefin is stabilized with at least one diester of 3,31-thiodipropionic acid + an alkylenedioxybis (alkylated phenol) of formula: <FORM:0942342/C3/1> wherein R1, R2, R3 and R4 are H or C1\t to C18 alkyl radicals and A is a C2 to C20 alkylene radical. The preferred stabilizers are the dilauryl distearyl and dibutyl thiodipropionates, and 4,41-ethylenedioxybis (2-t-butyl or octyl phenol) and 4,41-decamethylenedioxybis (2-t-butylphenol). The polyolefin may be derived from ethylene and/or propylene, 3-methylbutene-1, 4-methylpentene-1, pentene-1, 3,3-dimethylbutene-1, 4,4-dimethylbutene-1 octene-1 or decene-1. The compositions find application as electrical insulation and may be formed into sheet, rod, tube, pipe, film or coated articles.
Patent GB-1337065-A (GB)
Title: Vehicle crash protection apparatus
IPC: B60R21/231
Filed: 1971-04-19
Abstract: 1337065 Inflatable bags ROCKET RESEARCH CORP 19 April 1971 [30 March 1970] 25520/71 Heading B7B In a vehicle safety device a bag 4 has a fabric wall of fabric material, such as nylon, with means attached on the inside of the bag wall and moveable therewith for moving the wall from its inoperative towards its operative expanded position. In a preferred embodiment, Fig. 3, the bag 4 is deployed by thrusters 5 secured to the inside of the bag and are initially releasably held by spring clips 18, Fig. 6, in sockets of supports 12 secured to a wall of the dash. Each thruster 5, Fig. 6, comprises a tubular housing containing a solid propellant 17 and an igniting coil 15 is held in contact with bus-bars 13 of supports 12 which are connected to positive and negative terminals of a battery via an inertia switch, Fig. 2 (not shown). One way flap valves 8 covered by a nylon netting 9 are built into the bag wall adjacent each row of thrusters 5 and open to allow air within the vehicle to be drawn into the bag 4 upon deployment. The bag may have vent orifices (not shown) to allow deflation of the bag upon impact. In its stowed position the bag is preferably covered by a rupturable fabric 10. In a modification, Fig. 9, a semi-cylindrical support wall 12<SP>1</SP> supports the thrusters 5 and has additional air admitting openings O. A central air inlet opening is provided in the dashboard D having sheet aluminium louver-like check valves 19. In another embodiment, Fig. 12, gas from a central gas source 21 such as a cool gas generator or a pressurized container flows via a manifold 22 through flexible passageways 24 in the bag 4 and connect with tubes 23 having inwardly discharging openings 25. In another embodiment, Fig. 13 (not shown), the bag has elongated thruster units (20) having outlet openings (26) and include a solid propellant or the units may be pressurized gas storing vessels, the outlet openings of which are closed by an explosive strip valve.
Patent GB-384004-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/24
Filed: 1931-09-11
Abstract: 384,004. Vices. VOGL, H., HARTMAN, O., and POLAK, E., (trading as DOHNAL & SPOL), 32, Klimenstkß Strasse, Prague. Sept. 11, 1931, No. 25542. Convention date, Sept. 12, 1930. [Class 61 (ii).] The fixed jaw member 2 of a vice is formed of a number of steel laminations 3 secured together between rear mounting plates 10 by bolts or rivets 9, the mounting plates having flanges 12 for securing to the bench and inclined sides 11 providing a dovetail guide for the slide 4<1> of the movable jaw 4. Both jaws are fitted with steel gripping blocks 8. Jaw 2 carries the adjusting screw 6 and guide sleeve 7.
Patent GB-1436373-A (GB)
Title: Compositions for tyre treads
IPC: C08G18/69
Filed: 1973-05-29
Abstract: 1436373 Moulding tyres FIRESTONE TIRE & RUBBER CO 29 May 1973 [8 June 1972] 25614/73 Heading B5A [Also in Division C3] Tyres are produced by a method which comprises (I) placing into the tread portion of a centrifugal tyre mould an uncured polyurethane generating tyre tread composition comprising (A) an elastomer precursor which is a polyhydroxylated polymer derived from a polymer of one or more C 4-6  conjugated dienes, a copolymer of such dienes with vinyl aromatic monomers or a polyether, (B) a polyisocyanate, (C) a peroxide and (D) 35 to 200 parts per 100 parts by weight of (A), (B) and (C) of carbon black or silica as reinforcing pigment, the NCO/OH ratio in the uncured composition being at least 0À5 and components (A) and (B) constituting at least 25 per cent by weight of the composition, (II) thereafter centrifugally casting a polyurethane tyre body composition on top of said tread and (III) subjecting the composite of tyre body and tread to curing conditions. Reinforcing cords or plies may be placed over the tread before casting the body, or short reinforcing filaments may be compounded with  the tread stock. In Example 2 tyres are obtained by curing composites produced by centrifugally casting tyre body compositions comprising isocyanate terminated polytetrahydrofuran, silicone oil, epoxy resin, carbon black, di-(2-ethylhexyl)phthalate and methylene bis orthochloroaniline on to treads formed from compositions comprising hydroxyl-terminated butadiene/styrene copolymer, toluene diisocyanate, carbon black, zinc oxide, processing oil, 4,41-methylene-bis-(2,6-di-t-butylphenol) dibutyl tin dilaurate and dicumyl peroxide.
Patent GB-263252-A (GB)
Title: A new or improved gas diffuser for internal combustion engines
IPC: F02M1/00
Filed: 1925-10-14
Abstract: 263,252. Crawshaw, L. S. Oct. 14, 1925. Spray carburettors. - A charge-mixing device situated in the carburettor comprises a set of grooved or corrugated plates, the grooves or corrugations being at an angle to the general direction of flow of the charge. The grooves or corrugations of one plate are preferably at an angle to those of an adjacent plate, and two or more sets of plates may be arranged in succession, the plates of one set being preferably at right angles to those of the succeeding set. Fig. 1 shows an end view of a set of vertical corrugated plates, and Fig. 2 shows a. sectional view of a vertical set of plates V followed by an horizontal set of plates H. In Fig. 2, the lines 1, 2 represent the crowns and hollows of a vertical plate B, and the lines 3 represent the direction of the corrugations in the adjacent plate. In the modification shown in Fig. 6, each plate is replaced by a set of parallel strips of metal corresponding to 'the walls of the grooves, the strips R of one set being at an angle to those L of an adjacent set.
Patent GB-733143-A (GB)
Title: Improvements in and relating to magnetic line scan deflection circuits for television receivers
Inventor: OXENHAM JOHN KENNETH
IPC: H03K4/26
Filed: 1950-10-20
Abstract: 733,143. Sawtooth generating circuits. COSSOR, Ltd., A. C. Oct. 22, 1951 [Oct. 20, 1950], No. 25665/50. Class 40 (6). In a magnetic deflection circuit employing an efficiency diode, parasitic oscillations due to stray capacitances and leakage inductances, although not prevented, are arranged to be of substantially zero amplitude across the deflection coils. The deflection coils 21, Fig. 3, may be connected to taps 20<SP>1</SP>, 20<SP>11</SP> equidistant from the ends of the secondary winding 14. In a modification, Fig. 7, the deflection coils 38 are connected to a tap 40 on autotransformer 39. The resistor 44 and inductor 45 are made variable and are adjusted to reduce the lines or bars on the raster. The inductor 46 prevents undue attenuation of the line scan currents and the resistor 47 prevents shock-excitation of the inductor 45.
Patent GB-1478884-A (GB)
Title: Method and circuits for transmitting pulse sequences by means of radio circuits
IPC: H04L23/02
Filed: 1974-06-10
Abstract: 1478884 Telegraphy; diversity transmission/ reception systems LICENTIA PATENTVERWALTUNGS-GmbH 10 June 1974 [9 June 1973] 25666/74 Headings H4P and H4L In a communication system in which data in bit form is transmitted by radio as a pulse sequence, distortion in the received sequence due to multipath transmission is reduced by dividing the pulse sequence at the transmitter into n bit blocks and replacing each block by a corresponding code word, the particular word depending on the block content and being chosen from a group of fixed words (each having more bits than n). Each code word received at the receiver is subject to varying time displacement as a result of the varying paths and the codewords are identified at the receiver by a group of detectors, so that the original n bit blocks can be restored. The number of bits in a block should be greater than the ratio of the greatest expected transmission time difference between signals transmitted via different paths to the bit length. The different code words should be as near orthogonal with one another as possible. The number of code words needed will be 2<SP>n</SP> and the same number of detectors, which should be correlation detectors, will usually be required. If one half of the code words are the inverse of the other half, only half this number of correlation detectors will be needed, as inverse code words may use the same detector. The inputs to the correlators are connected in parallel to the receiving circuits and their outputs are connected to logic circuits which determine which is providing the greatest output and with what polarity.
Patent GB-331737-A (GB)
Title: Arrangement for dulling automobile lamps and the like
IPC: B60Q1/14
Filed: 1929-08-23
Abstract: 331,737. Lysholm, E. J. Aug. 23, 1929. Lantern screens.-In a vehicle lamp in which a pivotally mounted screen l is adapted to be passed through a slot m cut in the lower part of a parabolic reflector b into a position partly or completely in front of the electric lamp bulb a, a narrow mirrored plate o is attached to the end of the screen l so as to cover the slot m and act like part of the reflector b when the screen is in its inoperative position behind the reflector. The screen l may be made of green celluloid or like transparent material fitted with a metallic edge, and its movement may be facilitated by rollers n. The screen may be carried bv a pair of arms' k pivotally mounted on a shaft h which is rotated by means of an arm r connected to a Bowden wire s passing through a hole t in the lamp casing e and attached to a control handle at the driver's seat, the Bowden wire acting against a spring p which tends to retain the arms k against a fixed stop q. Alternatively, the screen may be operated by pneumatic or electrical means.
Patent GB-482200-A (GB)
Title: Improvements in contrivances for absorbing gases or vapours
IPC: B01D53/18
Filed: 1936-09-22
Abstract: <PICT:0482200/III/1> <PICT:0482200/III/2> <PICT:0482200/III/3> <PICT:0482200/III/4> In a contrivance for absorbing gases or vapours from a stream of gas or vapour passing along a conduit in contact with absorbent material, the absorbent material consists wholly or partly of tubular elements composed of coherent absorbent material which does not disintegrate when moist.  Fig. 1 shows an arrangement for drying and cooling air which is driven by a fan 19 through a casing 1.  The air passes first through a number of conduits each formed by the inner of two concentric tubes 6, 7 made of absorbent material, for example cardboard.  The tube 7 is coated on the outer or inner side with lacquer and the space between the tubes 6, 7 is filled with loose absorbent material such as peat or bleaching clay. Instead of the double tubes 6, 7, single tubes may be employed, each consisting of a cardboard tube 28, Fig. 3, covered with aluminium foil 10.  The tubes are cooled by cool air entering the casing 1 at the inlet 2 and leaving through the opening 3.  The air to be dried next passes in contact with transverse tubes 11 of thick cardboard which are coated on the inside with aluminium foil, and afterwards passes in contact with tubes 12 of papier m<\>zach<\>ae, each rolled around a cardboard tube 13 and embraced by a paper envelope.  The air next flows longitudinally through tubes 16 made of paper known by the Registered Trade Mark "Hydroloid."  These tubes are separated from externally-coated tubes 15 by spaces filled with wood shavings, sawdust, silica gel, activated carbon or aluminium oxide, salts, hydrates, or other absorbent material.  The last section of the casing 1 contains conical tubes 18 of cardboard which are lined or coated internally and may be wetted externally to effect final cooling of the dried air.  The tubular elements may be freed from moisture by reverse flow of heated air.  In another arrangement shown in Figs. 8 and 9, cardboard tubes 21 filled with loose absorbent material such as peat or activated carbon, are conveyed on one side with moisture-proof paper or metal foil 23.  Passages 25 are thus provided for the cooling air and passages 26 for the air to be dried.
Patent GB-697334-A (GB)
Title: Preparation of polyesters, polyamides or polyesteramides of high molecular weight
IPC: C08G73/16
Filed: 1950-10-23
Abstract: Polyesters, polyamides or polyesteramides are treated to increase their molecular weight with N-acyl polyimides of polycarboxylic acids as described in Specification 681,054.  The N-acyl polyimides react with hydroxyl or amino groups in the polymers either by simple addition or with elimination of an imide.  Low or moderate molecular weight polymers with terminal hydroxyl and/or amino groups are readily prepared by using an excess of glycol and/or diamine in the polymer forming reaction. For very high molecular weight products the quantities of polymer and linking agent should be approximately equivalent. Cross-linked polymers may be produced by using N-acyl polyamides with a functionality greater than 2, or polymers with a functionality greater than 2, e.g. the polymers from an alcohol with at least 3 hydroxyl groups and a monohydroxy-monocarboxylic acid or from an amine with at least 3 amino groups and an amino- or hydroxy-carboxylic acid.  The mixture of reactants for producing a cross-linked polymer can be moulded or cast, the reaction being effected at elevated temperature.  In the examples: (1) a poly-decamethylene sebacate of average mol. weight 6700 was heated at 200 DEG  C. with N,N1-sebacyl-bis phthalimide.  The estimated mol. weight of the product was 23,000.  The product was tough, mouldable and yielded fibres which could be cold-drawn; (2) N,N1-sebacyl-bis-succinimide was employed similarly; (3) N,N1-iso-phthalyl-bis-succinimide was the linking agent.; (4) a tetramethylene terephthate polymer was heated with N,N1-sebacyl-bis-phthalimide; (5) a solution of low molecular weight polyethylene terephthalate in o-dichlorobenzene was heated with N,N1-sebacyl diphthalimide; (6) polydecamethylene sebacamide was heated with N,N1-sebacyl-bis phthalimide; (7) a rubbery polymer was produced by heating N,N1-sebacyl-bis-phthalimide with the polymer from decamethylene glycol, isophthalyl chloride and cyclohexanone tetrapropionic acid.  Example (8) employs the same ingredients as example (7) in different proportions.
Patent GB-1044744-A (GB)
Title: Metal backed abrasives
IPC: C08L61/10
Filed: 1964-06-22
Abstract: An abrasive article comprises a metal backing which may be flexible or rigid, having a presize coating, comprising a blend of alcohol-soluble nylon with a thermosetting alkali-catalysed unmodified phenol - formaldehyde resin, adhered to one surface of said backing, and a plurality of abrasive grains, such as diamond grit, silicon carbide, alumina, or garnet, adhesively bonded to the presize coating. The nylon may be an interpolymer nylon, and preferably has an intrinsic viscosity of at least 0.4.
Patent GB-1532119-A (GB)
Title: Furrowing tool
IPC: E02F9/28
Filed: 1977-06-21
Abstract: 1532119 Furrowing tool for seed planting KENNAMETAL Inc 21 June 1977 [24 June 1976] 25781/77 Heading AID A furrow opening disc 10 is provided with bit elements 14 (Fig. 1) or 38 (Fig. 7) welded or bolted to the disc 10, each bit element being slotted longitudinally to accommodate the disc 10 between its legs 22, 24, having a curved or flat locating surface 26 for engaging the disc periphery, and having a wear-resistant insert 18 brazed to it.
Patent GB-942165-A (GB)
Title: Improvements in or relating to the manufacture of cellular polymeric materials
Inventor: STEPHENSON KENNETH
IPC: C08J9/00
Filed: 1961-07-17
Abstract: A process for the manufacture of cellular polyurethane materials by simultaneously intracting a secondary hydroxyl-ended polyether containing at least two hydroxyl groups per molecule, a polyisocyanate and water, is characterized in that there is incorporated in the reaction mixture a tin salt of a carboxylic acid and a foam stabilising agent which is ethyl cellulose. Linear or branched polyethers can be used, including reaction products of propylene and butylene glycols with glycols, polyols, ammonia, amines, alkanol amines, sucrose, phenol-formaldehyde reaction products.  The ethyl cellulose can be incorporated as a powder, dispersed in a reactant, or dissolved in acetone, methylene chloride or dioctyl phthalate. In an example (1) foam is prepared by reacting poly propylene glycol of M.W.2000, water, stannous octoate, ethyl cellulose, ethylene oxide/propylene oxide block copolymer (surface active agent) and mixed tolylene-2:4- and 2:6- diisocyanates. In other examples a polyoxypropylene triol is used and catalysts include a mixture of stannous octoate, dimethylbenzylamine and 4- dimethylamino pyridine 1:4-Diazabicyclo [2.2.2] octane can also be present. Fillers, silicones, flame retardants such as tri(chlorethyl) phosphate, plasticizers such as tricresyl phosphate, colouring matters, stabilizers, antioxidants and whitening agents can also be incorporated. Specifications 850,664 and 877,289 are referred to.
Patent GB-309202-A (GB)
Title: Improvements in and relating to the production of calcium or other alkaline earth metal benzoates and benzoic acid
IPC: C07C51/41
Filed: 1927-09-29
Abstract: 309,202. Fairweather, D. A. W., Beckett, E. G., Thomas, J., and Scottish Dyes, Ltd. Sept. 29, 1927. Alkaline earth bentzoates; benzoic acid. - Alkaline earth benzoates are prepared by heating a solid mixture of an alkaline earth phthalate and an alkaline earth hydroxide under atmospheric pressure and under such conditions that the heat of reaction is rapidly removed. For example. the mixture may be passed in small amounts at a time through a narrow heated tube, the surface of which sufficiently absorbs the heat of the reaction, or alternatively the heat produced by the reaction of one part of the mixture may be used to bring adjacent parts to the reaction temperature. In one example, a mixture of calcium phthalate with calcium hydroxide is conveyed through a tube under such conditions that the mixture attains a temperature not exceeding 450‹ C. In other examples, the conditions of the first example are modified (a) by including in the mixture an inert material such as calcium carbonate, sand, ground granite, or finely divided iron, and (b) by operating at a lower temperature, suitably 435‹ C. An alternative method consists in heating a considerable amount of a mixture of calcium phthalate and calcium hydroxide to about 420‹ C., withdrawing the source of heat from the bulk of the mixture, and heating a small portion to 440-450‹ C.; the reaction starts and extends through the mass. but the mass does not attain a temperature sufficient to decompose the calcium benzoate. In any event, the reaction product, comprising calcium benzoate, carbonate, and possibly phthalate may be boiled with water and filtered hot, leaving a residue of calcium carbonate and phthalate which may be treated with phthalic acid and reused. The calcium benzoate solution may be treated while boiling with sulphuric acid, filtered, and the benzoic acid crystallized; the mother liquors may be used in the next extraction.
Patent GB-1223340-A (GB)
Title: A guiding arrangement for a mobile material cutting machine
IPC: G01C7/06
Filed: 1968-05-29
Abstract: 1,223,340. Tunnel-boring machines. LES TRAVAUX SOUTERRAINS. 29 May, 1968 [6 June, 1967], No. 25813/68. Heading E1F. [Also in Divisions G1 and G2] A guiding arrangement for a tunnel-boring machine having a cutting face required to follow a desired path comprises first and second optical devices 27, 25 disposed at a fixed location and on the machine respectively and an optical system 24 also mounted on the machine and being operative, provided the machine is following the path, to direct light from one of the devices to the other device, the optical system being such that when the device 25 is viewed from the device 27 the device 25 appears to be at the cutting face of the machine. The machine includes a rotary head 1 pressed forward by power jacks bearing on the tunnel wall and carrying tools comprising a triple cone at the centre and milling rollers at the periphery, Fig. 1 (not shown). The head is guided by jacks acting on the rear end 3 of the machine frame. The device 25 is a luminous cross and the device 27 is a tacheometer. The driver of the machine may view the tacheometer 27 by closed circuit television. In a second embodiment, Fig. 5 (not shown), light from a projector at the tunnel - entrance is projected by mirrors to a sighting device of ground glass having two opaque lines crossing thereon. A laser may be used and the machine may be controlled automatically by photoelectric cells. In a third embodiment, Fig. 6 (not shown), a laser projector passes light through a convergent lens onto a photoelectric receiver. In a fourth embodiment, Fig. 7 (not shown), the tunnel is curved and prisms are used to make the light follow the tunnel curvature. The prisms may be replaced by spectrometric screens.