baber/WOPTO huggingface dataset:
Patent GB-1496075-A (GB)
Title: Extraction of subterranean geothermal energy
IPC: F03G4/06
Filed: 1975-05-13
Abstract: 1496075 Utilizing geothermal energy ERDA ENERGY SYSTEMS Inc and A T VAN HUISEN 13 May 1975 20156/75 Heading F4U [Also in Division E1] An installation for transferring geothermal energy from a subterranean zone 18 to the surface comprises a reservoir 14 connected to a group of downwardly diverging wells 10, which have their lower ends located in the zone 18 and which conduct hot fluid to the reservoir 14. As shown, each well has a servo-controlled valve 26 connected to a time sequencer controller 28, and the reservoir 14 is connected to a power plant 48 through a separator 45. In a second embodiment, Fig. 3 (not shown), water from the surface is injected through further wells into the zone 18, which may be a dry, porous geothermal zone, to form a body of pressurized, heated hydrothermal fluid which passes up the wells 10 to the reservoir. In a modification, Fig. 4 (not shown), the water injection pipes are located within the wells 10. In a further embodiment, Fig. 5, the end 16 of each well 16 is closed by a plug 74 to form a heat exchanger 76 to which water from the surface is passed through a pipe 78 within the well 10, heated vapour then passing from the heat exchanger 76 to the reservoir 14 through the annular space 82 within the well 10. The well 10 may comprise a metal casing cased within a layer of concrete 81.
Patent GB-1584212-A (GB)
Title: Disazo dyestuffs
IPC: D06P3/60
Filed: 1977-05-13
Abstract: A process for dyeing or printing cellulosic fibres or their mixtures with synthetic fibres, in particular mixed polyester/cotton fibres, in shades from golden-yellow to orange envisages dyeing or printing the material in the presence of water and a solvent selected from the class of the polyols and their ether derivatives or esters of organic acids, with bisazo dyes of the general formula: <IMAGE>  where:     X1, X2, X3 and X4 are H, CH3 or OCH3,   Y is Cl, Br or CH3 and n is 0, 1 or 2. f
Patent GB-154287-A (GB)
Title: Improvements in or relating to rotary fluid-pressure engines of the impulse type
IPC: F01D1/34
Filed: 1919-08-16
Abstract: 154,287. Hickson, S. A. E. Aug. 16, 1919. Jet-wheels.-The rotor is provided with chambers so shaped that the total pressure on any cross-section of the chamber is constant, wherein the steam expands to the exhaust pressure. Fig. 1 shows a section of a turbine in which steam is admitted through the pipe 13 to the annular space 16. It passes through the ports 15 in the diaphragm 14 and the jet passages 21 in the rotor 18, and impinges on the end wall 14 of the chamber 23. It expands along this chamber to the exhaust opening 25 which communicate with the condenser &c. The jet passages 21 may be dispenced with and the chambers made open on the outer circumference of the rotor. By having different numbers of chambers 23 and ports 15 a more uniform torque is obtained. Fig. 6 shows a modification in which the ports 60 are formed in end plates 58.
Patent GB-1314041-A (GB)
Title: Apparatus for processing semiconductor material
IPC: C30B25/02
Filed: 1970-04-28
Abstract: 1314041 Gas/solid contact; decomposition of gases INTERNATIONAL BUSINESS MACHINES CORP 28 April 1970 [19 May 1969 (2)] 20216/70 Heading B1F [Also in Divisions C7 and H1] In a gas buffer, 1, Fig. 2, between two treatment chambers containing gases Al and A2 for treating a moving semiconductor work piece 4, a non-adversely reacting buffer gas A3 is introduced through pipe 11, and a mixture of gases A1 and A3 is drawn off through pipe 12, and a mixture of gases A2 and A3 is drawn off through pipe 13. Mixing of gases A1 and A2 is thus substantially prevented. The workpiece may be a filament or a semiconductor plate. Fig. 5 shows means for moving semiconductors 64 in carriers 50 through treatment chambers, and Fig. 7 shows a suitable carrier. In Fig. 8, silicon wafers are sequentially processed in chambers 69A, 69B, 69C in successive dry (69A), wet (69B) and dry (69C) oxidation conditions to provide stratified oxide layers, using chambers 69, 92 and 72 as buffer chambers and oxygen, nitrogen, helium or argon as the buffer gas. Other processes described are processing surface preconditioned silicon wafers in an atmosphere of hydrogen, silicon tetrachloride and oxygen for silicon oxide deposition; diffusing phosphorus pentoxide as a conductivity determining impurity from a co-formed film matrix thereof with silicon oxide on a wafer; and a sequential vapour etching and deposition of consecutive superposed layers of epitaxial, nitride (or silicon oxide) and metal films on semi-conductor substrates.
Patent GB-932325-A (GB)
Title: Estrane derivatives
IPC: C07J75/00
Filed: 1961-06-05
Abstract: The invention comprises steriods of the general formula <FORM:0932325/IV(a)/1> wherein R represents hydrogen or an alkyl radical, and X and Y are the same or different and each represent hydrogen or an alkanoyl radical.  The steroids may be prepared by the following processes:- (a) reduction of steroids of the general formula <FORM:0932325/IV(a)/2> wherein R has the above significance, e.g. with Raney nickel, to form the corresponding 3a ,17b -diols; (b) esterification of the diols prepared at (a) to form the 3,17-diesters of the first formula above e.g. by reaction with the required acid anhydride in pyridine, or with the required isopropenyl alkanoate in the presence of an acid catalyst; (c) reduction of the required 17b -alkanoyloxy-5a -estran-3-ones e.g. with Raney nickel; (d) reduction of the required 3a -alkanoyloxy-5a -estran-17-ones e.g. with lithium tri-(tertiary butoxy)aluminium hydride, to form the 3a -alkanoyloxy-5a -estran-17b -ols of the above general formula which may also be prepared by reaction of the corresponding 3,17-diols and alkanoic acid anhydrides for a short period; and (e) partial hydrolysis of the diesters formed at (b) to form the 17-monoalkanoates of the above general formula.
Patent GB-364608-A (GB)
Title: Improvements in and relating to electric drive for spinning machines
IPC: B21D15/10
Filed: 1930-07-04
Abstract: 364,608. Electric driving - arrangements for mules ; induction motors. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A. -(Assignees of Allgemeine Elektricitõts- Ges. ; 2, Friedrich Karl-Ufer, Berlin.) July 4, 1930, No. 20333. Convention date, July 6, 1929. Void [Published under Sect. 91 of the Acts]. [Class 120 (ii).] In a mule having an individual electric drive by means of a threephase asynchronous motor the " pull-out torque of the motor is about 20 per cent higher than the load moment of the mule on the outward run and the "pullout slip " is more than 25 per cent. The torqueslip curve 1, Fig. 4, is shown in comparison with the curve 2 of a normal short-circuit rotor motor. The high " pullout slip " may be obtained by increasing the rotor resistance, the resistances a preferably being mounted on the rotor shaft d, Fig. 3, so as to rotate therewith. The cage of resistance bars a is electrically connected with the bars of the rotor winding b and is arranged near the rotor c, a short-circuit ring e being displaceable thereon to vary the resistance if required.
Patent GB-1495636-A (GB)
Title: Charge transfer devices
IPC: H03H7/30
Filed: 1975-05-14
Abstract: 1495636 Active filters WESTERN ELECTRIC CO Inc 14 May 1975 [16 May 1974] 20340/75 Heading H3U [Also in Division H1] A filter for analogue signals comprises a plurality of charge-coupled storage cells 1 to N connected in series to form a delay line, a first charge-coupled cell 18 (Fig. 1) of area A 1  for receiving the analogue signal 12 and coupling it to the input cell 1 of the delay line, and a second chargecoupled cell 22 of different area A 2  coupled either to the input cell 1 or to the output cell N of the delay line, whereby a filtered output is provided which includes charge contributions from both the first and second cells 18, 22. Fig. 1 shows a "feed-forward rejection filter" in which the second cell 22 is coupled to the output cell N of the delay line and carries the undelayed input signal 12 thereto to combine with the delayed signal, the filter having the transfer function where s is the generalized frequency and A is the area of each delay line cell. Fig. 3 schematically shows a "feedback bandpass filter" in which the second charged-coupled cell 210 is coupled to the input cell 201 of the delay line, forming, with an analogue inverter 213, a feedback path from the output cell 207 to the input cell 201. The areas A, and A 2  are such that A 1  + A 2  = A, where A is the area of each of the delay line cells 201-207. The cells 209 and 210 are mutually isolated by a chamstop barrier 211, this and the lower "transfer barriers" 212, 208, &c. between each of the cells 209, 210 and the input cell 201 and between each pair of adjacent delay line cells, being formed by elongate diffused or implanted regions. The transfer function of this filter is Compact meandering modifications of both embodiments are disclosed.
Patent GB-366866-A (GB)
Title: Process for decomposing calcium phosphates
IPC: C05B11/04
Filed: 1931-07-15
Abstract: A process of decomposing calcium phosphates insoluble in water by treatment with ammonium salts, is characterized by the use of ammonium salt solutions at elevated temperatures, and, if necessary, increased pressures.  Ammonia formed is removed, preferably by passage of steam or other gas.  A temperature of 245-250 DEG  C. and pressure of 35-38 ats. are specified.  Mineral phosphate may be converted to monoammonium phosphate or dicalcium phosphate, or dicalcium phosphate from other sources to monoammonium phosphate. Preferably mixtures of ammonium salts are used, an ammonium sulphate-monoammonium phosphate mixture being specified.  The solution of monoammonium phosphate separated from the precipitated calcium sulphate may be crystallized, the mother liquor being re-used in the process, or it may be combined with the evolved ammonia to produce diammonium phosphate.  Ammonium sulphate may be regenerated by treatment of the calcium sulphate with ammonia and carbon dioxide.
Patent GB-735880-A (GB)
Title: Improvements relating to crack-detecting apparatus
Inventor: ARMOUR ALAN MARSH
IPC: G01N27/84
Filed: 1952-08-13
Abstract: 735,880. Magnetic tests. METROPOLITANVICKERS ELECTRICAL CO., Ltd. July 24, 1953 [Aug. 13, 1952], No. 20375/52. Class 37. Apparatus for detecting cracks in a ferromagnetic member by magnetizing the member and applying a magnetic powder to the surface comprises two pairs of poles located on perpendicular axes with adjustable spacing and reversible polarity and capable of being used as contact members for passing current through the test object. As shown, the four poles 3, 4, 5, 6 are provided with D.C. magnetizing coils, pole 4 being movable along a slot 7 in a metal bed-plate 1, and pole 3 being adjustable by a hand wheel 9. A fifth pole or contact member 12 whose height is adjustable may be used in conjunction with the other poles or contact members 3-6 to give different directions of magnetization in the test object, as selected on a control panel 29 and indicated by coloured lamps 17. Specification 735,881 is referred to.
Patent GB-1535976-A (GB)
Title: Sound-damping and vibration-damping vehicle-body cladding
IPC: B60R13/08
Filed: 1976-05-18
Abstract: 1535976 Sound insulation DAIMLERBENZ AG 18 May 1976 [12 June 1975] 20510/76 Heading F2X [Also in Divisions B7 and B5] A vibration, particularly sound, damping cladding comprises a porous layer secured on one side to a vehicle body part, the other side being covered by a coating shaped to conform to the form of the body part, and a viscous mass is added to the porous layer to coat the walls of the pores therein. If bitumen is used as the viscous mass, it becomes fluid and coats the pore walls when the body part is heated to apply lacquer &c. Alternatively, in order to contain the viscous mass, a layer of adhesive material covers the porous layer on the side opposite to that covered by the coating. The porous layer may extend beyond the edges of openings in the body part and coating to seal around members inserted through the opening.
Patent GB-905716-A (GB)
Title: Improvements in or relating to electric motors
IPC: H02K33/04
Filed: 1959-06-15
Abstract: 905,716. Oscillating electric motors. AVOG ELEKTRO-UND FEINMECHANIK G.m.b.H. June 15,1959 [June 14, 1958; June 28, 1958 (2)], No. 20515/59. Class 35. The oscillating armature 7 of a shaver motor is disposed between A.C. excited poles 5, 6 so profiled that the width of air-gaps 13, 14 (i.e. in the direction of flux across the gap) varies linearly with armature deflection to ensure sinusoidal oscillation. The armature pole profiles may be straight and the field poles between a straight line and a hyperbola. The armature is mounted on a torsion spring 8.
Patent GB-743653-A (GB)
Title: Improvements in toys
IPC: A63H3/28
Filed: 1952-08-15
Abstract: 743,653. Toy figures. DASH, W. Aug. 14, 1953 [Aug. 15, 1952], No. 20578/52. Class 132(3) A toy figure comprises two hollow members 1, 2 of rubber or like resilient material and is provided with a reed squeaker 7 which operates when air is drawn into the members 1, 2, i.e. after they have been deformed by bouncing on a surface or otherwise. The squeaker consists of a reed 9 of stiff paper secured to a sound box 10 fitted in an amplifier chamber 11, and a rubber tube 12 secured adjacent the mouth aperture supports the squeaker assembly. According to the Provisional Specification a musical note may be emitted from the toy on compression thereof and the sounder may be other than the reed type. There may be more than one sounder.
Patent GB-275636-A (GB)
Title: Manufacture of condensation products of the anthraquinone series
IPC: C09B1/515
Filed: 1927-08-04
Abstract: 275,636. I. G. Farbenindustrie Akt.- Ges. Aug. 4, 1926, [Convention date]. Grant of Patent opposed. Fats, oils, or fatty acids are coloured by means of oxyalkylaminoanthraquinones, prepared by condensing aminoanthraquinones with halogenhydrins. In examples stearic acid is coloured red by the condensation product from 1-aminoanthraquinone and ethylenechlorhydrin, and violet by the corresponding product from 1-amino-4-oxyanthraquinone.
Patent GB-1001498-A (GB)
Title: The preparation of copolymers, and their uses
IPC: C08F212/12
Filed: 1964-05-19
Abstract: Lubricant and metal working compositions comprise as an essential ingredient a copolymer preferably block, of ethylene and alpha-alkyl styrene, e.g. alpha-methylstyrene.  The copolymers may be terminated with tert.-amine groups which may be in the form of salts with HCl, HBr, or H2SO4.  The quaternary ammonium compounds can be used as emulsifiers for water-oil emulsions.  The viscosity index of oils can be improved by incorporating therein 0.01 to 20% by weight of the copolymer.  The oil compositions may also include other oxidation stabilizers such as 2,6-ditertbutyl-4-methyl phenol, 4,41 - methylene bis(2,6 - ditertbutyl phenol), dibenzyl disulphide, didodecyl sulphide, phenyl-alpha-naphthylamine, and antiscuffing agents, e.g. organic phosphates, phosphites, phosphonates and their thioderivatives such as C3 to C18 alkyl phosphites, or phosphonates, and tricresyl phosphate.  The addition of 1% of the following copolymers to a mineral oil increases the viscosity index from 70 to 120. The specified copolymers are block copolymers of ethylene and alpha-methyl styrene, and such copolymers containing groups derived from trimethylamine, a mixture of N-methyl morpholine and triethylene diamine, N-ethyl morpholine, and a 50/50 mixture of trimethyl- and triethyl-diamine, and the hydrochlorides of these groups.ALSO:Copolymers particularly block of alpha-alkyl styrene and ethylene are made by copolymerizing the monomers in the presence of an organolithium catalyst and a solvent at -100 DEG  to 50 DEG  C. Block copolymers are formed by effecting the polymerization of an alpha-styrene at a pressure below 5000 p.s.i. and a temperature -100 DEG  to 0 DEG  C., increasing the pressure to above 5000 p.s.i. and polymerizing the ethylene.  The process may also be effected by first polymerizing ethylene under the above conditions, reducing temperature and pressure and polymerizing the alpha-alkyl styrene. The solvent may be a tertiary amine which functions as a co-catalyst and co-reactant, e.g. amino groups are introduced into the copolymer, preferably as chain terminators.  The solvent may be an inert liquid hydrocarbon and/or an oxygen-, or sulphur-containing liquid.  The catalyst may be ethyl, n or iso-butyl, octyl, phenyl, or naphthyl lithium, or a lithium adduct of 1,1-diphenyl ethylene, stilbene, alpha-methyl styrene, 1,5-dilithio-pentane, or 1,6-dilithio-hexane. Suitable amines are the usual C1 to C4 alkyl tertiary amines, and heterocyclic amines such as N-methyl, ethyl, propyl, butyl, or phenyl morpholine, N-alkyl piperidine, or N-alkyl pyrrolidone. Inert solvents are preferably di-C1 or C2 alkyl ethers, dioxane, diethyl ether of diethylene glycol, tetrahydrofuran, ethylene oxide and diphenylene oxide, diethyl sulphide, tetrahydrothiophene, benzene, toluene, and heptane. The copolymers containing tertiary amino-groups may be converted into salts by dispersing the copolymers in an inert hydrocarbon solvent and reacting the dispersion with a dilute acid. The preferred alpha-styrene is alpha-methyl styrene.
Patent GB-358557-A (GB)
IPC: H01J19/42
Filed: 1930-07-08
Abstract: 358,557. Thermionic valves. ARCTURUS RADIO TUBE CO., 720, Freling- huysen Avenue, Newark, New Jersey, U.S.A. -(Assignees of Krahl, W. L. ; 73, Orange Road, Montclair, New Jersey, U.S.A.) July 8, 1930, No. 20658. Convention date, July 13, 1929. [Class 39 (i).] Electrodes are carried between two insulating members 18, 18<1>, Fig. 1, above the press 11, support rods 14, 33 passing through opening in the members 18, 181 and being secured thereto by clips, Fig. 6. Each clip has parts 29 above and below the member 18 or 18<1> and extends longitudinally of the rod to provide an extended surface for welding thereto. Each member 18, 18<1> may be a triangular mica plate supported at its corners on the three rods 14, 33, two rods 14 being welded to flanges on the anode 13 and the other rod 33 carrying a spring 40 for the upper end of the straight or V-shaped heating filament 38. The cylindrical cathode 17 and the grid support 16 pass through apertures in the plates 18, 18<1> and are held in position respectively by collars 30, 31 and flattened parts 22, 23, 25. The unit comprising the electrodes and the plates, 18, 18<1> is assembled before mounting in the tube by welding the rods 14 &c. to rods 34 in the pinch 11.
Patent GB-275644-A (GB)
Title: Improvements in braking devices for motor-cars
IPC: F16D51/04
Filed: 1927-08-05
Abstract: 275,644. Poulet, E. Aug. 6, 1026, [Convention date]. Shoes acting on drums.-In an internal expanding shoe brake for vehicle wheels, two braking segments are arranged side by side in the brake drum and are connected with the operating mechanism so that one segment is operative during the forward running of the vehicle and the other segment during the backward running. In the construction shown, a multiple-armed lever mounted on a pivot d has one arm e connected by a rod f to the free end of one brake segment b, which is effective during the forward running of the vehicle, and a second arm g connected by a rod h to the other brake segment c. The lever is also provided with a third arm k associated with the operating mechanism through the medium of a short lever l with ball heads at either end or, in a modification, through the medium of a single ball head arranged in the swivelling axis of the wheel. The braking segments may be either of a flexible or a rigid nature. Specification 269,739, [Class 79 (v), Motor vehicles, Steering &c.], is referred to
Patent GB-136871-A (GB)
Title: Improvements relating to Coin Freed Roulette and like Machines.
Inventor: FORTE CARMINE
IPC: G07F17/34
Filed: 1919-06-11
Abstract: 136,871. Forte, C. June 11, 1919. Roulette. - In coinfreed roulette and like apparatus having a " skill " operated device capable of positively locking the usual toothed wheel for revolving the disk and actuated by the player pressing a trigger or otherwise giving movement to a system of levers or the equivalent connected to the locking device, the locking device, is prevented from coming into action until the disk has acquired a reasonable speed of rotation. The roulette disk a having the usual toothed wheel b is revolved by clock-work mechanism when a coin is inserted, a rod g being moved, when the mechanism is set, to disengage a brake c from the wheel b. The rod g is brought back slowly by the clockwork until the brake c is released from a detent k and automatically locks the wheel b. The "skill" operated locking device comprises a bolt m placed below the wheel b and held out of engagement therewith by a bar p normally held engaged in a recess m<2> in the bolt by a spring p'. The bar p is retracted to release the bolt m, which is then shot into engagement with the wheel b by a spring m attached to the cross-pin m<1>, by a wire or the like q<3> attached to the trigger q<2> of a dummy piston q fixed by the player who endeavours to stop the disk a with the desired colour opposite the central point, at which position the machine will deliver appropriate coins. To prevent the bolt m from coming into action before a reasonable speed has been attained by the disk a, a latch lever s pivoted to the brake rod g is brought with its end s<1> above the cross-pin m<1> when the mechanism is set and the bolt m is withdrawn against the spring m by a lever r. The lever s is pulled clear of the pin m<1> when the rod g has been moved back a certain distance by the clockwork mechanism, thereby giving the disk a time to attain speed before pulling of the trigger q<2> has any effect in releasing the bolt m.
Patent GB-299537-A (GB)
Title: Improvements in or relating to electro-mechanical translating devices, such for example as loud speakers
IPC: H04R11/00
Filed: 1927-08-05
Abstract: 299.537. Trouton, M., and Wireless Music, Ltd. Aug. 5, 1927. Drawings to Specification. Magnetic instruments.-Relates to an electromechanical vibration translating device, such as a loud-speaker, of the kind in which the relative movement of the armature and magnet pole surfaces is at least in part rotational and consists in connecting the member to be driven by, or adapted to drive, the armature to the armature at a point situated between the centre and heel thereof. The armature is defined as those parts of the vibratory member which lie, at any moment, vertically above the stationary cooperating surface or magnet pole surfaces. The end of the armature nearer the real or virtual axis of rotation thereof is referred to as the, heel, whilst the opposite end is referred to as the toe. The parts are so dimensioned and disposed that, as the armature moves, the point at which the resultant attractive force acts, i.e. the centre of force, moves in such a manner that the moment of the resultant attractive force about the real or virtual axis of rotation of the armature varies according to a substantially linear law with the displacement (towards and away from the co-operating surface) of the point of attachment of the armature to the driving or driven member. The point of attachment of the driving or driven member to the armature coincides with the position of the centre of force in the position of rest of the armature, the centre of force moving from one side to the other of the point of attachment as the armature moves from its innermost to its outermost position during vibration. The parts are preferably so dimensioned and disposed that as the armature moves away from its position of closest proximity to the co-operating surface, the centre of force moves towards the toe of the armature. A relatively flexible armature is preferably employed which is so mounted that the flexure thereof increases as the armature moves from one working position to another away from the co-operating surfaces. Preferred constructions, together with the dimensions of the various parts are described in the Complete and both Provisional Specifications. Specification 293,131 is referred to.