baber/WOPTO huggingface dataset:
Patent GB-1056561-A (GB)
Title: Chromium-nickel-aluminium steel and method for heat treatment thereof
IPC: C22C38/00
Filed: 1963-09-24
Abstract: A precipitation-hardenable, stainless steel comprises:-  .Cr 7.- 18% .Ni 6.- 12% .Al 0.5.- 2.5% .Mn up to.1% .Si up to.1% .C up to.0.05% .P up to.0.015% .S up to.0.1% .N up to.0.05% the balance being iron. The steels may also optionally contain:-  .Mo up to.8% .Ti up to.0.1% .B up to.0.003% and one half of the nickel may be substituted by Co in the ratio of three parts Co for each part of Ni replaced.  The steel may be hot worked, annealed at 980-1093 DEG C., quenched in air, oil or water and then fabricated.  It is then austenetized at 704-955 DEG C., cooled to between 150 DEG C. and - 129 DEG C. and tempered at 370 DEG  - 650 DEG C. followed by cooling in air, oil or water.
Patent GB-772764-A (GB)
Title: Improvements in or relating to an automatic clearance take-up device
IPC: G05G1/00
Filed: 1954-12-29
Abstract: 772,764. Valve gear. REGIE NATIONALE DES USINES RENAULT. Dec. 29, 1954 [Jan. 14, 1954; June 25, 1954], No. 37566/54. Class 7 (6). In an hydraulic tappet having a compression space 3 between a cylinder 1 and piston 2 and a compensating space 4, 10, filled with the hydraulic fluid, a member 5 transmitting the movements of the piston 2 to the engine valve gear is resiliently connected in fluid tight manner to the cylinder 1 and a compressible means 12 is provided in the space 10 in the piston 2 to maintain the pressure in the compensating space 10 approximately constant despite variations in the volume thereof during operation. The piston and cylinder are urged apart by a spring 9 and the member 5, which is shaped to receive the end of a valve stem or rocker and has a flange 8 resting on the piston 2, is bonded to a resilient ring 6 of rubber or synthetic resin which is bonded to a plug 7 screwed into the end of the cylinder 1, the ring 6 permitting the member 5 to move with the piston 2 relatively to the cylinder 1. The flow of fluid from the compensating space to the compression space 3 is controlled by a non-return valve 14 held in position by a cage 15 and on each up-stroke of the tappet a small amount of fluid is forced from space 3 past the piston 2 to the annular compensating space 4 which is connected to the space 10 through orifices 11 in the piston 2. The means 12, which expands or contracts according to variations in the volume of fluid in the spaces 4, 10, may consist of a cylindrical bellows containing compressed gas or of a block of sponge rubber or similar synthetic resin material covered with a layer of fluidtight rubber or synthetic resin. In a modification, Fig. 2, the piston and cylinder 1, 2, are urged apart by the resilient member 6, the spring 9 of Fig. 1 being omitted and the member 5 is screwed into the piston 2. Grooves 10<SP>1</SP>, 10<SP>2</SP>, facilitate flow of the liquid from the chamber 4 to the chamber 10.
Patent GB-1515918-A (GB)
Title: Wire buckle
IPC: B65D63/16
Filed: 1975-09-12
Abstract: 1515918 Buckles EMBALEX Ltd 12 Sept 1975 [5 Aug 1975] 37625/75 Heading E2A A strap-buckle is formed from a single piece of wire by bending it into two U- shaped parts 12, 13, 14 and 17, 18, 19 respectively of which one limb of each part overlies a limb of the other, the two parts being joined by an intermediate portion 21 which is kinked up at its ends 22 so as to provide lateral abutment shoulders for the free ends of the wire to rest against when under stress. In the form shown, the top arms 12, 17 are displaced, Fig. 2, by a wire width from the underlying arms 13, 18 but they may lie directly over them (Figs. 5-7, not shown) or in an intermediate position (Figs. 9 and 10, not shown). By this means straps of various frictional characteristics may be secured (Figs. 11-13, not shown). Hybrid buckles are described.
Patent GB-811216-A (GB)
Title: Improvements in or relating to welding apparatus
Inventor: RICHARDSON ERIC KENNETH
IPC: B23K9/028
Filed: 1954-12-31
Abstract: 811,216. Welding by fusion. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Dec. 13, 1955 [Dec. 31, 1954], No. 37733/54. Drawings to Specification. Class 83 (4). Portable welding apparatus comprises a bridge member having a clamp at each end adapted to clamp two pipes together endwise and in alignment and a welding torch which is rotated around the pipe ends to weld the pipes together. The subject matter of this Specification is identical with that of Specification 811,217.
Patent GB-1528811-A (GB)
Title: Hydrocarbon separation process
IPC: C10G25/03
Filed: 1975-09-15
Abstract: 1528811 Separating hydrocarbons by adsorption BRITISH PETROLEUM CO Ltd 18 Aug 1976 [15 Sept 1975] 37746/75 Addition to 1110494 Heading C5E In a cyclic, vapour phase, pressure swing process for the separation of n-paraffins from admixture with non-straight chain hydrocarbons by the steps of adsorption, purge and desorption, (a) purge effluent is recycled through a bed of 5Š molecular sieve in an adsorption stage from which an effluent of reduced n-paraffin content is recovered; (b) surface adsorbed and interstitial matter is purged from the bed by reducing the pressure by direct contact condensation of effluent vapour in a purge condenser with fresh feed liquid which is recovered and passed into the adsorption stage; and (c) nparaffins are desorbed from the bed by further reduction of pressure. The process can be used to treat (a) a gasoline fraction at 300-380‹ C. and adsoption, purge and desorption pressures of 5-500 psia, 2-50 psia and 10-300 torr respectively, (b) a kerosine or gas oil at 350-400‹ C. or at 380-440‹ C. respectively and adsorption, purge and desorption pressures of 5-50 psia, 5-150 torr and 0À1-220 torr respectively. Fresh feed 4 is supplied to a purge condenser 2 where it mixes with and condenses purged vapours 17 thereby drawing a vacuum on the bed 1. A portion 6 of the liquid from the base of the condenser 2 is recycled through cooler 7 and the remainder 9 is passed through the heat exchanger 11 and the feed heater 12 to the bed I where adsorption occurs and denormalized product 13 is withdrawn from the bed. Following the purge stage the pressure on the bed is further reduced by condensation of the vapour from the bed by direct contact with cooled recycled n-paraffin product in condenser 3.
Patent GB-981129-A (GB)
Title: Improvements relating to crane booms
Inventor: CARTER LEON NORMAN
IPC: B66C23/68
Filed: 1962-10-05
Abstract: 981,129. Crane booms. JOHN ALLEN & SONS (OXFORD) Ltd. Sept. 11, 1963 [Oct. 5, 1962], No. 37885/62. Heading B8B. The boom 50 of a mobile rotary crane 2 on vehicle 3 is formed of two parts 4 and 6 separated by an extension piece 11. The extension piece 11 is formed of two parts 12 and 13, all the parts being connected together by pins. Each pin secures a lug to a clevis as shown. Additionally the lug and clevis 18<SP>1</SP>, 20<SP>1</SP> is provided with an additional pin H such that when all the other pins have been removed the two parts of the boom can pivot about the pin H so that the boom will fold so as to be accommodated on the vehicle.
Patent GB-1526245-A (GB)
Title: Manufacture of concentrated aqueous solutions of formaldehyde
IPC: C07C47/058
Filed: 1975-09-17
Abstract: 1526245 Formaldehyde BASF AG 17 Sept 1975 [18 Sept 1974] 38172/75 Heading C2C In a process for the manufacture of a concentrated aqueous solution of formaldehyde by oxidative dehydrogenation of methanol with air in the presence of a silver catalyst and of steam, at elevated temperature, followed by absorption in water of the formaldehyde formed, the reaction is carried out with a throughput of from 1 to 3 tonnes of methanol per square meter of catalyst bed cross-section per hour in the presence of from 0À1 to 1À8 moles of water and from 0À04 to 0À4 mole of formaldehyde per mole of total methanol fed to the catalyst, and the specified amount of formaldehyde and water are taken from the reaction mixture after the reaction and added to the starting mixture. The recycled formaldehyde and water may be taken from the reaction mixture before the absorption operation but is preferably abstracted from the solution formed in the absorption operation by means of the air fed to the reaction or by simple vaporization, or in part by each method, suitably from different stages of a multistage absorption system. Additionally 0À005 to 0À05 mole of methanol per mole of total methanol fed to the catalyst may be taken from the reaction mixture and added to the starting mixture.
Patent GB-359296-A (GB)
Title: Improvements in articulated locomotives
IPC: B61C1/02
Filed: 1930-12-19
Abstract: 359,296. Articulated locomotives. BEYER PEACOCK & CO., Ltd., Gorton, Manchester, and JACKSON, S., 260, Bramhall Lane, Stockport. Dec. 19, 1930, No. 38304. [Class 79 (i).] The bed castings C for the wheeled units B of an articulated locomotive are made integral with any or all of the following parts, viz. the pivot or articulation centres E, the main or auxiliary weight bearers or side supports F, steam or exhaust or other pipes G, H, reservoirs L for air &c., and supports K for tanks or bunkers. The engine cylinders D are also cast integral with the framework C in known manner.
Patent GB-930833-A (GB)
Title: Modulator circuits
IPC: H03K17/54
Filed: 1959-11-12
Abstract: 930,833. Amplitude modulating systems. SPERRY RAND CORPORATION. Nov. 12, 1959 [Nov. 26, 1958], No. 38349/59. Class 40 (5). A balanced modulator comprises two valves (or transistors) with the cathode (emitter) of each connected to the anode (collector) of the other, and their junctions bridged by an impedance 12, 13 across which a modulating signal 1 is applied, their grids (bases) being connected through a carrier source 9 to a centre tap 16 of the impedance 12, 13. The carrier switches one or other valve to conduction depending on the instantaneous polarity of the modulation input, thereby to shortcircuit and interrupt the modulation output at 14a, 14b at carrier frequency. The cathode/ grid circuits produce grid current in opposite directions through resistors 12, 13, so that the net voltage across 12, 13 due to grid current, being nil, produces no effect on the output. The voltage drop across resistors 12, 13 moreover limit grid current flow.
Patent GB-881667-A (GB)
Title: Improvements in or relating to internal combustion engines with exhaust gases circulated in a substantially closed circuit
IPC: F02B47/10
Filed: 1959-11-13
Abstract: 881,667. Internal combustion engines; treat ing and utilizing exhaust gases. WUTRICH L. F. Nov. 13, 1959 [Dec. 1, 1958], No. 38635/59. Class 7(2). In a closed-circuit engine the exhaust gases pass through pipe 3, Fig. 1, to an expansion device 4, Fig. 2, having at least two expansion chambers 5, 6, with inlets closed by spring- loaded valves 10, 14, and safety valves 20, and then flows through a purifier 23 to injectors 46 on the cylinder heads in which the exhaust gases mix with fuel-air mixture. The purifier, Fig. 3, comprises a casing 24 lined with a porous pot 30 and provided with baffles 38-40 between which is placed felt, the felt in the lower part being soaked in oil. The gases pass through a porous block 35 and through sand 33 and then flow through the porous wall 30 and the felt into the outlet passage 29. A copper plate 32 protects the bottom of the porous pot 30. The injector 46, Fig. 5, comprises inlets 59, 60, for the purified exhaust gas and fuel-air mixture respectively controlled by ports 57, 58, in a reciprocating slide valve 52, the resultant mixture being sucked directly into the cylinder. In a modification separate inlets are provided for the exhaust gas, air and petrol. The safety valves 20 on the expansion chambers are spring-loaded poppet valves set to blow off at predetermined pressures and they may be surrounded by filters to purify the exhaust gas escaping to atmosphere when excess pressure develops.
Patent GB-1504680-A (GB)
Title: Metallically conducting 5, 6, 11, 12-tetrathio tetracene-iodine charge-transfer complex and processes for the production thereof
IPC: B01J45/00
Filed: 1976-09-17
Abstract: 1504680 Tetrathiotetracene-iodine complex CIBA-GEIGY AG 17 Sept 1976 [19 Sept 1975] 38669/76 Heading C2C The invention comprises a complex of the formula The complex is obtained by reacting iodine with 5,6,11,12-tetrathiotetracene.
Patent GB-1142452-A (GB)
Title: Improvements in or relating to mould manufacture
Inventor: PEPELIN BORIS ALEXEEVICH
IPC: B22C9/04
Filed: 1967-08-23
Abstract: 1,142,452. Making moulds. NAUCHNOISSLEDOVATELSKY INSTITUT TEKHNOLOGII AVTOMOBILNOI PROMYSHLENNOSTI. 23 Aug., 1967, No. 38847/67. Heading B5A. A lost wax method of making a mould comprises applying to a pattern block separate layers of a refractory slurry and a granulated slag, drying the layers and removing the block. The resultant mould is then fired. The number of layers is preferably from 4 to 6. The maximum particle size of the slag, except for the first layer which may lie within a range of 0À2 to 0À5 mm., may be 4 mm. Layers of silica sand and granulated slag may be employed alternately between the layers of refractory slurry.
Patent GB-1255243-A (GB)
Title: Improvements in or relating to flame resistant-plastics-insulated electric cables
IPC: H01B7/295
Filed: 1969-08-04
Abstract: 1,255,243. Flame-resistant plastics-insulated cable. INDUSTRIE PIRELLI S.p.A. 4 Aug., 1969 [9 Sept., 1968], No. 38908/69. Heading H1A. A flame resistant electric cable has its insulation and its outer sheath formed of a composition based on polyvinyl chloride and containing 2 to 10 parts of antimony trioxide per 100 parts of P.V.C. The composition may also contain mineral filler, preferably calcium carbonate, a greater proportion of filler being used in the sheath. An additional layer between the insulated conductors and the sheath is also based on P.V.C. and contains 20 to 40 parts of antimony trioxide and 200 to 400 parts of mineral filler per 100 parts of P.V.C. It may also contain chlorinated paraffins and/or tricresylphosphate up to 80 parts per 100 parts of mineral filler. All parts are by weight.
Patent GB-860839-A (GB)
Title: Improvements relating to the production of alkyl aryl compounds
IPC: C07C5/41
Filed: 1958-12-03
Abstract: Alkyl aryl hydrocarbons are formed by catalytic dehydrocyclization of straight-chain paraffins or olefins containing 14 to 26 carbon atoms per molecule at 370-580 DEG  C. and thereafter selectively hydrogenating olefinic double bonds in the alkyl aryl hydrocarbons without substantial hydrogenation of the aromatic nuclei: the product may be sulphonated.  The feed may be obtained by urea adduction or solvent extraction of a gas oil. Hydrodesulphurization may precede or follow this separation or may be combined with the dehydrocyclization or with the selective hydrogenation.  Desulphurization may be effected over cobalt and molybdenum oxides on alumina at 100-1000 p.s.i.g., 500-900 DEG  F., 1-10 vol./vol./hr. and 500-800 SCF hydrogen per barrel. Dehydrocyclization catalysts are cobalt and molybdenum oxides on alumina, nickel on alumina or a chromia-alumina catalyst promoted with a rare earth, bismuth, boron, germanium, nickel, manganese, iron, or beryllium, together with potassium, or a spinel, suitable conditions being up to 50 p.s.i.g., and 0.1-1 vol./vol./hr. with or without added or recycle hydrogen. Hydrogenation may be effected over nickel, platinum, palladium, or cobalt and molybdenum oxides on alumina or tungsten and nickel oxides or sulphides at 100-1000 p.s.i.g., 100-480 DEG  C., 0.5-8 vol./vol./hr., and 500-8000 SCF hydrogen per barrel.  Preferably the product is distilled either before or after the selective hydrogenation to obtain a heart cut boiling in the range 260-410 DEG C. and after hydrogenation is solvent extracted, non-aromatics being recycled, e.g. with diethylene glycol, furfural or sulphur dioxide-benzole, or aromatics are separated by adsorption on silica gel.  The product may be sulphonated and neutralized and after drying may be mixed with sodium phosphates, sodium silicate and carboxymethyl cellulose.ALSO:Detergent compositions containing sodium phosphates, sodium sulphate, sodium silicate and carboxymethylcellulose also contain alkylaryl sulphonates prepared by the sulphonation of alkyl aryl hydrocarbons which are formed by catalytically dehydrocyclization of straight-chain paraffins or olefins containing 14-26 carbon atoms per molecule followed by selective hydrogenation of olefinic bonds without hydrogenation of the aromatic nuclei in the alkyl aryl hydrocarbons (see Group IV (b)).  The starting material may be obtained from a gas oil which is desulphurized before or after separating the straight-chain paraffins or olefines.  After aromatization and selective hydrogenation, the product is distilled to separate a cut boiling in the range 260-410 DEG  C., aromatics separated out by solvent extraction with diethylene glycol, furfural, or sulphur dioxide/benzole, the resulting product sulphonated, and the sulphonated product neutralized with caustic soda.
Patent GB-351441-A (GB)
Title: Process for the manufacture of stable solutions of the ovarial hormone
Filed: 1929-12-20
Abstract: Stable solutions of the ovarial hormone suitable for injection are prepared by extracting glands, body fluids, or concentrated hormone extract, such as dried placenta, or the product obtained by ether extraction from the dried residue of the urine of pregnant women with a liquid solvent such as the ester of a lower alcohol such as ethyl alcohol with oleic, erucic or other fatty acid containing at least 6 carbon atoms.  Reference is made to known extracts made with alcohol, ether, or benzene, and to extracts or aqueous solutions to be administered per se or subcutaneously.
Patent GB-1042917-A (GB)
Title: Improvements relating to moveable carriers of binarily coded information with magnetic reading systems
IPC: H03M1/00
Filed: 1963-10-04
Abstract: 1,042,917. Electric calculators; selective signalling. HOLLANDSE SIGNAALAPPARATEN N.V. Oct. 4, 1963 [Oct. 5, 1962], No. 39230/63. Headings G4A and G4H. Data is permanently recorded on a movable carrier such as a rotatable metal disc by providing two neighbouring areas for each bit, and two magnetic read heads for reading the two bits, the heads each receiving an exciting signal on one winding and having their read windings connected in counterphase, the two recording areas differently influencing the heads to provide an output signal of one polarity or the other. As shown, the carrier moves perpendicularly to the plane of the Figure, and is ferromagnetic so that at the instant shown winding 6 on head 2 will provide greater output than winding 4 on head 1 since the magnetic circuit of 2 is more complete. (Windings 3, 5 are fed with pulses or A.C.). Since 4 and 6 are series connected in antiphase, a polarity or phase discriminator can be used to generate a binary output, one binary digit being represented by a depression in one track, and the other by a depression in the other track. In other embodiments magnetic inserts in a non- magnetic disc are provided, or the eddy current effect may be utilized with an electricallyconductive disc.
Patent GB-842393-A (GB)
Title: Process for reducing the inflammability of fibrous materials
IPC: D06M15/227
Filed: 1956-12-24
Abstract: A fireproofing composition comprises chlorinated paraffin wax, a metal oxide such as antimony trioxide, and a chlorination product of polyethylene, polypropylene, or a mixture thereof, or of a copolymer of ethylene and propylene.  In examples, (1) antimony trioxide, ground chalk, and ochre are added to a solution of liquid chlorinated paraffin wax and chlorinated polythene in carbon tetrachloride, (2) antimony trioxide is added to a solution of liquid chlorinated paraffin wax and chlorinated polypropylene in trichlorethylene.
Patent GB-1268698-A (GB)
Title: Improvements in or relating to measuring methods and devices for rolling mills
Inventor: KREISKORTE HEINZ
IPC: B44F7/00
Filed: 1969-08-06
Abstract: 1,268,698. Automatic control of rolling. MOELLER & NEUMAN G.m.b.H. Aug. 6, 1969 [Aug. 10, 1968], No.39351/69. Heading G3R. [Also in Division G1] An automatic control system for maintaining a constant rolling gap between the work rolls 6, 7, Fig. 2, of a mill comprises two holders 15, 16 disposed between the work rolls and spring-biased towards each other, each carrying two auxiliary rollers 17. Holder 15 incorporates a differential transformer comprising a stator winding 18 and displaceable core 19 attached to the other holder 16 by a rod 20 extending through the rolling gap. The output from winding 18 is fed to a hydraulic device controlling the rolling gap.
Patent GB-910137-A (GB)
Title: Process for the manufacture of mixed halogenated phthalocyanines
IPC: C09B47/10
Filed: 1960-11-16
Abstract: 910,137. Chloro - bromo - phthalocyanines. CIBA Ltd. Nov. 16, 1960 [Nov. 20, 1959], No. 39419/60. Class 2(4). Chloro-bromo-phthalocyanines are made by reacting a metal-free or metalliferous phthalocyanine at an elevated temperature with bromine or an alkali-metal bromide in an anhydrous melt of aluminium chloride and sulphur trioxide, anhydrous sulphuric acid, sulphuric trioxide, anhydrous sulphuric acid, sulphuric acid containing sulphur trioxide or a compound of the formula R-SO 2 -Halogen where R is -OH, -OMetal, alkyl or alkoxy. The melt may also contain sodium, potassium or calcium chlorides, sodium fluoride or magnesium sulphate. Sulphur compounds of the above formula are fluorosulphonic or chlorosulphonic acids and salts and esters thereof such as sodium chlorosulphonate and' methyl sulphuric acid chloride, and methane sulphonic acid chloride. Examples are given. Specifications 818,831 and 821,629 are referred to.
Patent GB-1436460-A (GB)
Title: Telephone systems
IPC: H04M9/00
Filed: 1973-08-21
Abstract: 1436460 Automatic exchange systems WESTERN ELECTRIC CO Inc 21 Aug 1973 [23 Aug 1972] 39475/73 Heading H4K A key telephone system and a P.B.X. or other exchange are combined such that lamp signals &c. are supplied from a circuit selectively connectible to the key telephone lines. In one form shown a P.B.X. 20 includes common ring source and lamp control circuits 205 and 11, the signals from which can be selectively gated in trunk circuits 19 on to an incoming R and T pair and thus supplied via the switching network 17 and a line circuit 15 to a key telephone line and thus to all stations associated therewith. Thus the lamp signalling equipment is only associated with a line during a connection or connection attempt using that line. On an incoming call common control 16 establishes the wanted connection between trunk circuit 19 and a line circuit 15 and enables a relay 2TR connecting the ring source 205 to the R lead and a flashing lamp signal to the T lead. When a station such as S1 associated with that line responds looping the line and earthing a lead A, the scanner 204 in the common control detects the earth and enables a relay CO which in turn causes relay 2T to operate providing a steady lamp signal at the appropriate substations. The loop condition causes relay 25 to operate to hold the connection. If the called subscriber wishes to place the call on hold, he depresses a hold key which removes the earth condition then on release releases the line key. In the common control the earth removal is detected before the relay 5 releases and a timer 203 responds enabling a relay 2HB to connect a hold bridge 2RB across the trunk and via its contacts 2HB to connect wink signals to the key telephone line. In a modification (Fig. 3, not shown), a modified line circuit to replace 15 and which is suitable for both key telephone and conventional extension lines is also described. This includes a single two winding relay responsive to loop and earth signals from the subscriber. It is stated that the contacts of a cross-bar switch could replace relays 2T and their contacts.