baber/WOPTO huggingface dataset:
Patent GB-323791-A (GB)
Title: Improvements in and apparatus for the separation from solid residues of oils obtained in the destructive hydrogenation of varieties of coal, tars, mineral oils and the like under pressure
IPC: C10G1/06
Filed: 1928-09-11
Abstract: 323,791. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 11, 1928. Addition to 312,657. Mineral and tar oils, extracting.-Oils are separated from the solids in the residues obtained in the destructive hydrogenation of carbonaceous materials by adding solvents and filtering, the solvent, residues, extract, and extracted residues being continuously supplied to and removed from the filter. The solvents used are preferably the oils boiling below 300‹ C. obtained in the destructive-hydrogenation operation producing the residues treated, e.g. middle oils B.P. 150-300‹ C., 1.5 the weight of residues treated being employed at 90-150‹ C. Benzene, oils with a high content of aromatic compounds, carbon disulphide, heavy benzine, or mixtures may also be used. Substances causing rapid deposition of floating solids, e.g. methanol, acetone, carbon tetrachloride, may be used with the solvent. Extraction is preferably effected before the residues cool down below 150‹ C., cold or preheated solvent being sprayed on the residues before the pressure in the 'destructive-hydrogenation chamber is released. Extraction is preferably in stages, maybe with different solvents. Filtration is preferably in a current of inert gas, e.g. nitrogen or carbon dioxide; the filters may be kept clean mechanically, as by blowing out with nitrogen or carbon dioxide. The extracted' residues may be subjected to low-temperature carbonization or be treated with steam at a high temperature to produce hydrogen. In an example, the product from the destructive-hydrogenation of coal is freed from the low-boiling ccnstituents, and 1,000 kg. containing 60 per cent of oil are passed by a pipe A to a vessel M<1> and stirred at 90‹ C. with 1080 kg. of the filtrate from a drum filter F<2>. The mixture is then passed through a turbo-mixer T to a drum filter F<1>. The filtrate is led to a still D from which the heavy benzine is passed by a pump P<2> to a container O, and the oil is removed by a pipe H. The residue in the filter F<1> is passed to a mixer M<2> in which it is stirred with 1000 kg. of heavy benzine from the container O, and then to the filter F<2>. The filtrate is forced by a pump P<1> to the mixer M<1>. The residue is washed with benzine, dried by hot nitrogen from a pipe L, and passed continuously to a low-temperature retort S to expel volatiles which are condensed in a condenser K<2>. The nitrogen is drawn through the filters by a pump V, is freed from benzine vapours in a condenser E, is, reheated in a heater S<1>, and recircuited.
Patent GB-603008-A (GB)
Title: Improvements relating to a child's chair
IPC: A47D1/00
Filed: 1944-12-30
Abstract: 603,008. Nursery chairs. BANNISTER, S. B. Dec. 30, 1944, No. 26174. [Class 52(ii)] [Also in Groups XXXI and XXXII] A child's chair comprises a seat 15, to the sides of which are fixed depending portions 21 in which cranked arms 32 carrying wheels 31 are mounted, the wheels being adjusted into two positions limited by stops 34, 35, such that when the axle abuts the stop 34 the chair may rock on the wheels 31 and when it abuts the stop 35 the chair may be used as a push chair. The back 16 is hinged to fold onto the seat 15 and the sides 17 fold downwardly and outwardly about hinges 19, the sides and back being maintained in the erect position by screwed bolts 20. The front legs of the seat are provided with vertical sockets 24 into which legs 26 of a feeding tray 25 may be inserted, the legs being hinged in sockets 27 to fold flat against the base of the tray when the latter is not required. The Provisional Specification states that the seat may be provided with a hole for a chamber pot and that the feeding tray may be housed behind the back rest of the chair.
Patent GB-1234791-A (GB)
Title: Improvements in apparatus for distance measurement or control
Inventor: SCHULZ HANSRICHARD
IPC: G01S13/32
Filed: 1968-05-31
Abstract: 1,234,791. Non-linear amplifiers. SABA SCHAEZWALDER APPARATE - BAU - ANSTALT AUGUST SCHWER SOHNE G.m.b.H. 31 May, 1968, No. 26296/68. Heading G4G. [Also in Division H4] In a distance-determining system (see Division H4) a non-linear amplifier (see curve 10 on Fig. 3, not shown) comprises transistors T 10  ... T 15  and associated circuitry.
Patent GB-189295-A (GB)
Title: The manufacture of dyestuffs of the triarylmethane series
IPC: C09B11/16
Filed: 1921-10-05
Abstract: Triarylmethane dyestuffs dyeing tannined cotton in reddish-violet to bluish-violet shades, are obtained by condensing 4 : 41 dialkyl-diamino-3 : 31-dimethylbenzophenone with a secondary or tertiary amine using a condensing agent such as phosphorous oxychloride.  Such dyestuffs as contain a phenyl, benzyl, or naphthyl group in the amino group may be sulphonated when they dye wool similar shades from an acid bath.  According to examples (1) 4 : 41-diethyl-diamino-3 : 31-dimethyl-benzophenone is condensed with ethyl-o-toluidine in toluene in presence of phosphorus oxychloride; the ethyl-o-toluidine may be replaced by ethyl-a -naphthylamine, phenyl-a -naphthylamine, ethylbenzylaniline, or dibenzylaniline: (2) the basic dyestuff from the same ketone and dibenzylaniline or 4-methyl-31-methoxydiphenylamine (Specification 11275/91) is sulphonated with 20 per cent oleum.  4 : 41 - Dialkyldiamino - 3 : 31 - diamethylbenzophenones may be obtained by the hydrolysis of the corresponding thioketones prepared by the method of Specification 20615/14.  In an example 4 : 41-diethyldiamino-3 : 31-dimethylbenzo thiophenone is boiled with concentrated hydrochloric acid and the ketone precipitated by caustic soda.
Patent GB-1237707-A (GB)
Title: Improvements in or relating to liquid pressure braking systems
Inventor: OSBORNE DUNCAN WILLIAM
IPC: B60T17/22
Filed: 1968-06-04
Abstract: 1,237,707. Fluid pressure brakes. AUTOMOTIVE PRODUCTS CO. Ltd. 2 June, 1969 [4 June, 1968], No. 26481/68. Heading F2F. A liquid pressure braking system includes motor cylinders 18, 19 operating the brakes on front and rear vehicle wheels respectively, the cylinders 18 being connected during operation to a liquid pressure accumulator 12 and the cylinders 19 being connected during operation to a liquid pressure accumulator 13 and a control valve arrangement 14 including valve spools 15, 16 with a common operating device is provided between the accumulators 12, 13 and cylinders 18, 19 to connect the latter simultaneously either to the accumulators or to a low pressure reservoir 17. The accumulators 12, 13 are supplied with liquid from reservoir 17 by a pump 10, driven by the vehicle engine, through a cut-out valve 11 which includes a spring- loaded plunger which is moved by the pressure of fluid so that if a failure takes place causing loss of liquid from either accumulator or its associated cylinders, the plunger moves to isolate one accumulator from another and thus prevent loss of pressure from both. A warning light 75 denotes fall of liquid in the reservoir below a predetermined level and a second light 76 warns of movement of the plunger and thus indicates that one accumulator is not loaded.
Patent GB-838043-A (GB)
Title: Film-forming compositions
IPC: D01F1/10
Filed: 1958-08-18
Abstract: A film-forming synthetic resin composition comprises essentially a particulate vinyl fluoride polymer or copolymer in intimate admixture with at least one organic compound <FORM:0838043/IV (a)/1> where R is a divalent saturated C3-5 hydrocarbon radical, of which 3 or 4 carbon atoms are in the ring and Z is hydrogen or an alkyl radical containing up to 8 carbon atoms.  The copolymers may be derived from a predominant amount of vinyl fluoride copolymerized with another mono-ethylenic monomer such as a hydrocarbon, e.g. ethylene, propylene, isobutylene or styrene; a halogen-substituted olefin, e.g. vinyl chloride or bromide, 1,1-dichloro- or fluoro-ethylene, di- or tri-fluorochloroethylene, tetrafluoroethylene, trifluoropropylene or difluoro-isobutylene; a vinyl ester, e.g. of formic, acetic, propionic, butyric, pivalic, benzoic, stearic or an inorganic acid; an alkenyl ether, e.g. vinyl ethyl ether, tetrafluoroethyl allyl ether or vinyl dioxolane; a vinyl ketone, e.g. methyl vinyl ketone; an N-vinyl imide, e.g. succinimide or phthalimide; acrylic or methacrylic acid or such derivatives as esters, nitriles, amides, anhydrides or acid halides thereof, e.g. methyl, beta-hydroxyethyl or allyl methacrylate, acrylonitrile or N-butyl methacrylamide; a derivative of maleic or fumaric acid, e.g. diethyl maleate or dimethyl fumarate; or a propenyl ester, e.g. allyl or isopropenyl acetate.  Specified organic compounds of the above formula are: 2-pyrrolidone; N-methyl-2-pyrrolidone; N - iso-propyl - 2 - pyrrolidone; 5 - methyl - 2 - pyrrolidone; 5 - ethyl - 2 - pyrrolidone; 3,3-dimethyl-2-pyrrolidone; 2-piperidone and N-methyl-2-piperidone.  Examples describe in some detail the formation of films from polyvinyl fluoride and each of the above N-compounds by a variety of techniques, viz:-extrusion into baths of first hot then cold white mineral oil and removal of oil and N-compound with acetone; dispersion on a metal belt or plate and heating in an oven or hot silicone oil or by infra-red rays followed by volatilization of the N-compound in a current of hot air; extrusion from a slotted hopper into a bath of cold water and volatilization of the N-compound in a current of hot air.  The preferred concentration of polyvinyl fluoride in the composition varies with the film-forming technique to be employed, viz:25-40% (weight) for extrusion into coalescing hot oil; 10-60% for extrusion on to a plate or belt and coalescing by heat; 20-85% for hot extrusion into a cold quench bath.  Specification 605,445 is referred to.
Patent GB-654794-A (GB)
Title: Improvements in or relating to a method of making machine knitted fabric
IPC: D04B9/54
Filed: 1948-10-12
Abstract: 654,794. Knitting. HEMPHILL CO. Oct. 12, 1948, No. 26563. Convention date, Jan. 9. [Class 74 (ii)] In the knitting of a stocking welt on a multifeed circular machine, an initial course 7 is formed on alternate needles, a second course 8 of the same yarn is formed on all needles, a third course 9 is formed on alternate needles and interspersed transfer bits ; a course 10 is formed on the alternate needles and subsequent courses 10-14 are knitted on all needles, the same yarn being used throughout. The rest of the welt is knitted with all feeds to course 16 when the loops on the transfer bits, while knitting is still in progress, are transferred to the alternate needles. Knitting of the stocking is then continued. Specifications 582,994, 583,018 and 583,019, are referred to.
Patent GB-1380546-A (GB)
Title: Vertical synchronizing circuitry
IPC: H04N5/10
Filed: 1973-06-04
Abstract: 1380546 Television GTE SYLVANIA Inc 4 June 1973 [2 June 1972] 26584/73 Heading H4F A vertical synchronizing circuit includes a pulse generator which produces pulses synchronized with horizontal sync pulses of a received television signal, a counter which counts a predetermined number of these pulses corresponding to a vertical scanning field and then recycles providing a vertical output pulse, a detecting circuit which synchronizes the counter with the vertical sync pulses in the received television signal and provides a reset signal to the counter when the detecting circuit detects an out-of-synchronization condition, this detecting circuit including three gating circuits and an integrating circuit which is discharged when a synchronized condition is detected, and a second detecting circuit which detects the presence or absence of an interlaced relationship between the vertical and horizontal sync pulses and modifies the operation of the counter in the absence of an interlaced relationship.
Patent GB-843420-A (GB)
Title: Improvements in or relating to a piston machine
IPC: F03C1/22
Filed: 1958-08-19
Abstract: 843,420. Fluid-pressure engines. HOLDENER, S. Aug. 19 1958 [Sept. 10, 1957], No. 26595/58. Class 122(3). [Also in Groups XXVIII and XXIX] A fluid-pressure engine comprises at least two pistons 9 arranged radially of an eccentric ring 8, the pistons being rigidly attached to or formed as a single member with the ring 8. The pistons 9 reciprocate in cylinders 10 which are movable transversely in a guideway 11 as the pistons reciprocate, the cylinders opening the inlet and outlet ports formed in the flange of a member 31. The inlet and outlet ports of the members communicate respectively with common annular channels such as 35, provided on opposite sides of an annular member 33, which communicate with inlet and outlet connections 36, 37. The annular channels are closed at the surface of the member 33 by suitable plates and sealing gaskets.
Patent GB-503148-A (GB)
Title: Improvements in or relating to plate valves for hydraulic pumps or motors of the swashplate type
IPC: F01B3/10
Filed: 1937-10-01
Abstract: 503,148. Reciprocating pumps; liquidpressure engines. VARIABLE SPEED GEAR, Ltd., and INGOLDBY, M. K. Oct. 1, 1937, No. 26636. [Class 102 (i)] [Also in Group XXIX] A rotary plate valve for a unidirectional or reversible swashplate pump or motor comprises two or more concentric members 10,11, springs 22 pressing them apart, and positive driving means 12 between successive members, the areas 27, 28 subjected to liquid pressure and effective to hold the valve on its seat being not less than a half of and not greater than the running faces 19, 21. Cup packings 23 may be arranged between the members and may be expanded by liquid pressure or by a spring of U-shape. The valve is driven by an eccentric 13 on the shaft 14 and controls cylinder parts 20. The member 11 bears on the cover 16. Specifications 503,149, [Group XXVI], and 503,150 are referred to.
Patent GB-1090413-A (GB)
Title: Improvements in or relating to puzzles
IPC: A63F9/10
Filed: 1964-06-26
Abstract: 1,090,413. Puzzles. W. NIKLAUS & CO. and J. P. HANAULT. Sept. 10, 1965 [June 26, 1964], No. 26660/64. Heading A6H. A puzzle comprises a tray and a pluraity of hexomino elements from which sets of elements can be selected and assembled to form a predetermined shape defined by the tray. The tray is preferaby rectangular and the elements are made of plastics material.
Patent GB-240318-A (GB)
Title: Manufacture of water-soluble condensation products
IPC: C07C309/43
Filed: 1924-11-08
Abstract: Water-soluble condensation products, suitable as such or in the form of salts for use as frothing or emulsifying agents for example in dyeing and pharmacy, are produced by the action of an aralkyl halide or of an aryl halide containing reactive halogen, such as benzyl chloride, xylyl bromide or dichlordihydronaphthalene, upon a sulphonic acid of an aromatic polynucleal hydrocarbon, such as naphthalene, methylnaphthalene, tetrahydronaphthalene, anthracene &c. in the presence of sulphuric acid, or alternatively by the action of a powerful sulphonating agent, such as oleum or a mixture of oleum and chlorsulphonic acid, upon the condensation product of such a halide and the hydrocarbon itself or upon such reagents before condensation.  It is stated that if the condensation product of the halide and the hydrocarbon is treated with ordinary concentrated sulphuric acid, further condensation takes place to a hard insoluble resin.  In examples naphthalene is sulphonated and the product treated with benzyl chloride at 120-170 DEG  C. the mass poured on ice, diluted with water and either treated directly with caustic soda, filtered and the solution evaporated or treated with lime, filtered and the evaporated calcium salt converted into the sodium salt. Benzyl chloride and naphthalene are condensed at 80-90 DEG  C. and the product treated with a mixture of oleum and chlorsulphonic acid, caustic soda added and the product dried and pulverized.ALSO:Water-soluble condensation products, suitable for use as such or in the form of salts as frothing agents for example in dyeing, are produced by the action of an aralkyl halide or of an aryl halide containing reactive halogen, such as benzyl chloride, xylyl bromide or dichlordihydronaphthalene upon a sulphonic acid of an aromatic polynucleal hydrocarbon such as napthalene, methylnaphthalene, tetrahydronaphthalene, anthracene &c. in the presence of sulphuric acid, or alternatively by the action of a powerful sulphonating agent, such as oleum or a mixture of oleum and chlor-sulphonic acid, upon the condensation product of such a halide and the hydrocarbon itself or upon such reagents before condensation.
Patent GB-1405198-A (GB)
Title: Concrete reinforcement
IPC: E04C5/04
Filed: 1973-05-05
Abstract: 1405198 Concrete slabs A V I ALPENLANDISCHE VEREDELUNGS - INDUSTRIE GmbH 5 June 1973 26747/73 Heading E1W [Also in Divisions B3 and Dl] In a method of making a reinforcement for concrete wherein pieces of reinforcement of the required length are cut from a rolled-up grid of reinforcement having longitudinal high tensile steel rods connected by transverse elements of lower tensile strength, the grid being rolled up in its longitudinal direction with the longitudinal rods permanently deformed and having a length of at least fifty metres, the cut pieces are straightened and laid in position within shuttering side by side with the longitudinal rods parallel, adjacent edge rods of adjacent pieces of reinforcement having the same spacing as between adjacent rods within each piece. Cut lengths of grid may also be laid on top of each other and at right angles to one another. The ends of the transverse elements are flush with the outermost rods of the reinforcement grid and they may be of mild steel or synthetic plastics. The high tensile steel rods are preferably of cold worked or self-hardening steel. They are welded to the transverse elements and are preferably profiled for keying with the concrete.
Patent GB-1120756-A (GB)
Title: Method of recovering molybdenum, vanadium and tungsten from ores
Inventor: ERHARD ALBERT EDWARD
IPC: C01G39/04
Filed: 1966-06-15
Abstract: Molybdenum, tungsten and/or vanadium values may be recovered from ores and/or ore concentrates by contacting a particulate mixture of the ore and/or ore concentrate containing the metal values with a gaseous mixture of carbon monoxide and chlorine containing a stoichiometric excess of carbon monoxide, and at least a stoichiometric amount of chlorine at a temperature sufficiently high to form and volatilize the corresponding metal chlorides and/or metal oxychlorides and thereafter separating and condensing the volatilized metal compounds.  Interference by bismuth, iron or sulphur may be eliminated by passing the gas stream through a bed of NaCl or KCl at 250 to 600 DEG  C. or by mixing NaCl or KCl with the ore.  In the examples tungsten is recovered from the vapour phase in the chloride or oxychloride form by mixing various tungstates e.g. MgWO4, PbWO4, CuWO4, UO2WO4 with sand and treating with CO and chlorine.  Vanadium is recovered as VOCl3 by a similar procedure from V2O5, Mg2V2O7, Pb(VO3)2, Cu(VO3)2, VO2(VO3)2.  Similarly molybdenum is recovered as the oxychloride from a mixture of MgMOO4 and a pure silica sand.
Patent GB-1086155-A (GB)
Title: Improvements in or relating to direct-voltage sources
IPC: H04B15/00
Filed: 1965-06-24
Abstract: 1,086,155. Smoothing D.C. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. June 24, 1965 [June 27, 1964], No. 26811/65. Heading H2F. [Also in Division G3] In a direct voltage supply source 1 of the type having an output smoothing filter including a series impedance 2, the adverse effects produced by this impedance upon the voltage regulation of the source when the load current is abruptly varied are compensated for by a circuit including a first transistor 7, a second transistor and a coupling transformer which has its primary winding 3 connected between the series impedance 2 and one output terminal 5, one secondary winding 9 connected between the base and emitter of transistor 7, and another secondary winding 10 connected between the base and emitter of transistor 8. The arrangement is such that transistors 7 and 8 are normally cut off; a sudden increase in load current, however, will induce voltages in windings 9 and 10 which cause transistor 7 to be driven further into cut-off and transistor 8 to be rendered conductive to compensate for the voltage drop across impedance 2. Conversely, a sudden decrease in current renders transistor 7 conductive; thus the effect of the two transistors is considerably to reduce the output impedance of the source 1. The compensating action of transistors 7 and 8 is amplified by further transistors 13 and 14. In a simplified embodiment (Fig. 3, not shown), the transistors 7 and 8 are of opposite conductivity types and are connected to one common secondary winding of the transformer, the amplifying transistors 13 and 14 being omitted.
Patent GB-151283-A (GB)
Title: Improvements in change-speed mechanism
IPC: F16H15/44
Filed: 1920-09-20
Abstract: 151,283. Lafitte, T. Sept. 20, 1919, [Convention date]. Turning-gear.-In connexion with an engine 1, which is provided with friction change-speed gearing 3, 4 and is turned about an eccentric pivot 2 to vary the speed, toothed gearing 25, 26 is provided for starting the engine by swinging it about the pivot 2 when the friction gearing is disengaged.
Patent GB-994463-A (GB)
Title: Anchor grips for wires and like members
IPC: F16G11/04
Filed: 1961-07-25
Abstract: 994,463. Prestressing anchorages; clamps. CABLE COVERS Ltd., and J. DRYSDALE. July 25, 1962 [July 25, 1961], No. 26825/61. Headings E1V and E2B. [Also in Divisions Dl, E1 and E2] An end attachment for a cable comprises a barrel member 1, Fig. 3, furnished with a tapered screw-threaded axial bore 3, and an externally screw-threaded and longitudinally split conical insert 4, Fig. 5, adapted to be screwed into the barrel member 1, the conical insert 4 having an axial bore 6 to accommodate the cable. The two parts of the conical insert 4 have co-acting means 8, 9 for maintaining them in register. The bore 6 may have teeth, projections or serrations 7; or be furnished with a fixed or detachable liner whose bore may have teeth, projections or serrations. The barrel and the insert may have polygonal heads. The end attachment is stated to be suitable for use with wires or strands for prestressed concrete application.
Patent GB-1059988-A (GB)
Title: Non-aqueous surfactant system
IPC: C11D1/72
Filed: 1964-06-30
Abstract: A detergent composition comprises (1) 5-90 weight per cent of a phosphate of general formula <FORM:1059988/C4-C5/1> where n is an integer from 2-4, m is an integer from 0-12, p is 1 or 2, R represents hydrogen, or an alkyl, phenyl, alkylphenyl or arylphenyl group, wherein each alkyl group is C1-C20 and when R is hydrogen m is at least 1 and when m is 0, R has at least 4 carbon atoms, and M is hydrogen or a water-soluble salt-forming cation and (2) 95-10 weight per cent of a non-ionic surfactant of general formula <FORM:1059988/C4-C5/2> where n is an integer from 2-4, a is an integer from 2-40, x is 1 or 2 and Z is a C4-C20 alkyl radical.  The composition may form 0.25-15 weight per cent of a dry-cleaning composition with a halogenated hydrocarbon solvent, e.g. perchlorethylene.  Preferred phosphates are sodium bis - [tetraethenoxy - ethanol] phosphate and sodium bis - [octaethenoxy-ethanol]phosphate. Preferred non-ionics are nonylphenoxy octa-(ethenoxy)ethanol, butyl-phenoxy tetra-(ethanoxy) ethanol, and cosyl-phenoxyoctadeca-(ethenoxy)ethanol.