baber/WOPTO huggingface dataset:
Patent GB-645641-A (GB)
Title: Improvements in or relating to the production of power
IPC: F02K7/00
Filed: 1948-07-26
Abstract: 645,641. Gas and steam turbine plant. FEENY, V. F. (Mount, W. W.). July 26, 1948, No. 19920. [Class 110(iii)] [Also in Group XII] Ram-jet combustion chambers 18, Fig. 1, are arranged tangentially on the periphery of a power rotor 10 which drives an electric generator 60. The jets discharge into a surrounding annular chamber 30 which forms the firebox of a steam or other vapour generator having an annular steam drum 44. The combustion gases are discharged through pipes 38 and silencers 40. Fuel is supplied by a pipe 80 to an axial bore 82 in the shaft 12 and distributed by pipes 86 to the burners. At starting, the gases are ignited by burning gas supplied through a pipe 90. Combustion air is taken in at the central duct 24. The air pressure may be augmented by means of a paddle-fan, at the entrance of the duct 24, driven by a separate electric motor. The air may pass through a ring of fixed guide blades just above the rotor. The rotor may be formed of two spaced discs and the jet-tubes held in a fabricated structure welded to the discs. The space between the discs may be used as a fuel duct when the fuel is gas or powdered coal. Alternatively, the jet-tubes may be secured in holes bored in a solid rotor rim. The jet-tube may have a jacket 286. Fig. 10, divided by a helical partition 290. Fuel introduced at 292 is heated in passing round the chamber and is injected at 294. A liquid oxidizing agent may be used in place of air. The agent is introduced to a chamber 314, Fig. 12, by a pipe 312 and the fuel by pipe 320 to the jacket 317. The agent enters the chamber through an aperture 328 and is spread by a baffle 332. The fuel enters through holes 324. The steam generated may be superheated and passed from pipe 48, Fig. 1, to a steam-turbine or other user. The steamturbine may drive a separate generator or the jet-tube rotor may be connected by bevel-gearing and a clutch to the generator on the steam-turbine shaft. A starting motor is provided and, when it is in use, the clutch is opened.
Patent GB-1188152-A (GB)
Title: Improved Planar Semiconductive Devices and Method of Production
Inventor: TAFT ERNEST ASHTON JR
IPC: H01L21/00
Filed: 1967-05-01
Abstract: 1,188,152. Semi-conductor devices. GENERAL ELECTRIC CO. 1 May, 1967 [31 May, 1966], No. 20074/67. Heading H1K. Silicon carbide is used as a mask in diffusion and epitaxial growth processes typically starting from a monocrystalline silicon wafer. It may also be used for surface passivation as it is less permeable to hydrogen or water than is silicon oxide. The carbide layer may be formed by decomposition of, for example, silane and toluene at a heated surface, or by the action of carbon monoxide or methane on a heated silicon surface. The carbide acts as a mask for, inter alia, gallium and arsenic diffusion. To form a diode, a phosphorus-doped silicon wafer may be oxide-masked where diffusion is to occur, the non-masked regions converted to carbide, the oxide removed and gallium indiffused. Deposited metal contacts are then provided. A similar diode is made by diffusion of arsenic into boron-doped silicon. A PNP transistor is made by diffusing phosphorus into an oxide-masked boron-doped silicon wafer, by removing all oxide except a central portion of the oxide regrown over the diffused region, by converting exposed silicon to carbide, by removing oxide, and by the indiffusion of gallium. An NPN transistor is made by superimposing carbide and oxide masking layers on an N-type silicon wafer and by exposing the wafer to an atmosphere containing both gallium and phosphorus-the gallium diffuses faster to form a P-type region between the silicon bulk and the phosphorus-doped region. The oxide mask has no overlying carbide mask at the point where it is desired to make electrode connection to the galliumdoped base zone. In the manufacture of a further NPN transistor, silicon is etched from a carbide-masked body and the hole refilled by epitaxially deposited silicon. Any desired conductivity gradient may be set up in the epitaxial layer. The emitter region may be formed during the epitaxial process or may be formed by subsequent diffusion into the deposited material. Minor variations on the above techniques are suggested.
Patent GB-239687-A (GB)
Title: Improvements in electric terminals or other screw couplings
IPC: H01R4/34
Filed: 1924-08-26
Abstract: 239,687. Polyblank, W. J., and Watts, H. A. Aug. 26, 1924. Locking nuts.-A nut for electric terminals or other screw couplings consists of a screwthreaded cylinder 1 which is split or cut longitudinally at 5 and surrounded by a spring member such as a split collar 6 that compresses the cylinder 1. The spring may be surrounded by an outer wall 2 connected at the bottom to the inner cylinder 1 and of circular, polygonal, or other external form. The outer wall may be split longitudinally. Instead of the outer wall, flanges at the top or bottom of the nut may be provided for handling it.
Patent GB-809732-A (GB)
Title: Improvements in manufacture of n-alkyl-and n-cycloalkylbis-(2-benzothiazolesulphen)amides
IPC: C07D277/80
Filed: 1957-06-28
Abstract: N - alkyl - and N - cycloalkyl - bis-(2 - benzothiazolesulphen) amides are prepared by the gradual addition of an appropriate primary alkylamine or primary cycloalkylamine to 2-benzthiazolesulphenyl chloride in approximately 3 : 2 molar ratio, respectively, at a temperature in the range from -40 DEG  to 0 DEG  C.  The reaction may be conducted in a solvent such as n-hexane, methylene or ethylene chloride, carbon tetrachloride, benzene, toluene or chlorobenzene. The examples describe the preparation of N-isopropylbis-(2-benzothiazolesulphen) amide, N - cyclohexylbis - (2 - benzothiazolesulphen) amide, N-methylbis-(2-benzothiazolesulphen) amide and N-ethylbis-(2-benzothiazolesulphen) amide.  The 2-benzothiazolesulphenyl chloride may be prepared by treating benzothiazolyl disulphide with chlorine in one of the solvents specified above.
Patent GB-773407-A (GB)
Title: Improvements in or relating to chocks, props and like roof supporting structures formines
IPC: E21D23/00
Filed: 1954-07-14
Abstract: 773,407. Mine roof supports. GULLICK, Ltd., and SEAMAN, T. June 24, 1955 [July 14, 1954], No. 20513/54. Class 20(2) In a mine roof supporting structure 10 having a catch prop 12 located on that side of a conveyer 14 nearest the coal face 15, the structure is adapted to accommodate the catch prop 12 when the latter is removed from its operative position to allow for example, the passage of a coal cutter. In Fig. 3, the support structure comprises four hydraulic props 17 supporting. a canopy 11 formed by two spaced T-section girders 22 between which a hydraulic catch prop 12 is supported by means of a cross head 23 provided with trunnions 24 rotatably and slidably located in the I-sectioned girders 22 enabling the catch props, when released, to be swung upwardly and backwardly into the canopy to the position shown, in which position it is supported by a cross bar 25. The structure 10 is provided with a double acting ram 13 by means of which the canopy 14 and the structure 10 can be advanced as the work proceeds. Specifications 682,671 [Group XXIX], 720,361, 720,383, 767,561 and 768,544 [Group XXIX] are referred to in the Provisional Specification.
Patent GB-785032-A (GB)
Title: Self-hardening surface coating compositions
IPC: C09D4/06
Filed: 1954-07-14
Abstract: A self-hardening surface coating composition for copper, zinc or their alloys comprises a mixture of at least one monomeric polymerizable compound having at least one carbon-to-carbon double bond, e.g. styrene and methyl methacrylate, a polymerization catalyst and a small amount of hydroxyquinoline or an enolisable acetone derivative, for example acetyl or benzoyl acetone.  The composition may also include at least one wholly or partially polymerized compound, e.g. polystyrene; one or more a ,b -unsaturated polyester resins, e.g. maleic acid-glycol and/or maleic anhydride; small amounts of acrylic and methacrylic acids or amides or their polymers; plasticizing compounds such as decalol vinyl ether and higher esters of acrylic and methacrylic acids, e.g. acrylic acid butyl ester and polyvinyl methyl and ethyl ethers; cross-linking agents such as divinyl benzene and hardening monomers, e.g. methyl methacrylate and p-dichlorostyrene.  The catalyst may be a t-amine, e.g. di-ethanol-p-toluidine, a -amino- and a -hydroxy-sulphones and/or benzoyl peroxide, and small quantities of accelerators such as labile halogen-containing compounds, mono- and di-hydric alcohols, and heavy metal salts may be present.  Pigments, fillers, e.g. pyrogenically prepared silicon dioxide, resins, cellulose compounds, plasticisers and/or oils may also be present.  The reacting substances, such as the polymerization components and the catalyst, are preferably combined at, or shortly before application, e.g. from separate containers in a spray gun or from separate tubes; and the catalyst may be in solution or a suspension which may be thickened for example with pyrogenically prepared silicon dioxide.  In examples, brass surfaces are bonded (1) with the component systems (a) mono- and polystyrene, maleic acid-glycol polyester, acrylic acid, diethanol-p-toluidine, acetyl acetone and a hydroquinone stabilizer and (b) as (a) but with benzoyl peroxide replacing the acrylic acid, which are applied to the separate surfaces which are then brought into contact; (2) (a) as above but without acetyl acetone and (b) polystyrene beads, quartz powder, hydroxy-quinoline and benzoyl peroxide; and (3) (a) as in (1) and (b) dioctyl phthalate, benzoyl peroxide and pyrogenically prepared silicon dioxide.  The compositions in (2) and (3) are mixed just before use and applied to one of the surfaces to be adhered.
Patent GB-351753-A (GB)
Title: Improvements in apparatus for separating dust from air
IPC: B01D46/04
Filed: 1930-07-08
Abstract: 351,753. Dust collectors. JACKMAN & CO., Ltd., J. W. and NEVILLE, F. W., Vulcan Works, Blackfriars Road, Salford, Lancashire. July 8, 1930, No. 20597. [Class 8 (ii).] Dust-laden air from sand - blasting processes &c. impinges on a cone B facing the current and passes through reversed annular passages a, d to an annular series of bag filters G. A third annular closed passage a<1> around the passage d aids in separating the dust. Dust is deposited in a tube H and a hopper M and air escapes by a pipe n to atmosphere. When the apparatus is on the pressure side of the fan, the tube n and the outer casing may be dispensed with.
Patent GB-358523-A (GB)
Title: Improvements in and connected with manhole and like covers
IPC: E02D29/14
Filed: 1930-07-09
Abstract: 358,523. Manhole frames and covers. STONE & CO., Ltd., J., Deptford, London, and WELLS, A., Hay Tor, Daines Close, Thorpe Bay, Essex. July 9, 1930, No. 20812. [Class 107.] A manhole frame is provided with an inner wall 3 and a somewhat higher concentric outer wall 4 so as to form an annular channel 5 which is provided with a plurality of radial webs or projections 7 and is normally filled with sand, the arrangement being that a depending flange 9 on the cover 8 is adapted to seat either on the sand filling or on the webs or projections. Alternate webs may be slightly higher than the other webs. The cover is strengthened by four radial ribs 10 on its undersurface, and notches 11 are provided in the upper edge of the inner wall 3 to accommodate such ribs. The outer wall 4 of the frame is strengthened by external ribs 6.
Patent GB-1339850-A (GB)
Title: Accomodation ladders
IPC: B63B27/14
Filed: 1971-04-19
Abstract: 1339850 Ship's accommodation ladders WELIN AB 19 April 1971 [9 Feb 1970] 20865/ 71 Heading E1S A ships accommodation ladder 15 is supported by brackets 12, 13 mounted on the deck and pivotable about 180‹. Wires 16, 17 extend over pulleys 21 on arm 26 on davit 18 and pass over pulleys on the bracket 12 and ladder 15. For stowing the wires lift the ladder about pivot 14 to a horizontal position and then about pivot 19 to a vertical position. The arm 26 is then pivoted inboard and the ladder lowered to an inboard horizontal position. (For Figure see next page)
Patent GB-1472476-A (GB)
Title: Nuclear reactor installations
IPC: G21C13/00
Filed: 1974-05-10
Abstract: 1472476 Nuclear reactor containments; handling reactor components NUCLEAR POWER CO (WHETSTONE) Ltd and TAYLOR WOODROW CONSTRUCTION Ltd 6 May 1975 [10 May 1974] 20906/74 Heading G6C A nuclear reactor installation (for example including (a) High Temperature Reactor) has an outer envelope 31 divided internally by a floor 18 24 into upper and lower sections the lower section being divided by a wall 23 into a first part housing the reactor pressure vessel 12 and a second part housing shielded enclosures including a spent fuel store 22 and a new fuel store that part 24 of the floor overlying the second part of the lower section together with the wall 23 and the outer envelope 31 constituting secondary containment means for the reactor and there being provided in the upper section handling means for transporting reactor components including nuclear fuel between the interior of the pressure vessel 12 and the shielded facilities through normally-closed access apertures in the pressure vessel and in the floor 18 24. Thus the outer envelope 31 affords protection for both the reactor and the shielded facilities provided in the second part of the lower section. The outer envelope 31 wall 23 floor section 24 and a foundation raft 14 are all integral; the pressure vessel 12 is supported on legs 13 above the raft 14. The handling means is constituted by a refuelling machine 19 a gantry 20 and a crane 21 carried on the gantry. The crane 21 is able to move the machine 19 between positions overlying the reactor core 11 and the fuel stores as well as transport heat exchange-circulator sets 28. The latter can be removed from or brought into the outer envelope via a chamber 27. Beneath the spent fuel store 22 is a chamber 26 enclosing a spent fuel discharge machine 25. Subterranean passages (40 42 Fig. 2 not shown) extend between loading and discharge bays (37, 38) and the new and spent fuel stores. An earthwork 32 surrounds that part of the outer envelope which is above ground level 33 and up to the level of the internal floor 18, 24.
Patent GB-662026-A (GB)
Title: Improvements in or relating to packages for artificial teeth
IPC: B65D75/28
Filed: 1949-08-11
Abstract: 662,026. Packages. HILLIER, M. M. MACLAIRE. Aug. 11, 1949, No. 20940/49. Class 94(i) A package for artificial teeth comprises a base 10 formed of opaque sheet material formed with an aperture or apertures 11, 12, and sheet material 13 coated with a tacky adhesive applied to the base 10 with its adhesive-coated surface against one face of said base, said adhesive-coated material 13 extending across the aperture or apertures 11, 12, so that one or more teeth may be caused to adhere to the adhesive-coated surface within the aperture or apertures 11, 12 in the base 10, the package being characterised by the fact that the adhesive-coated material 13 is translucent or transparent. The whole base is enclosed in a transparent envelope. Specification 621,006 is referred to.
Patent GB-1099077-A (GB)
Title: Improved process for the production of spinnable acrylonitrile polymer solutions
IPC: C08F20/44
Filed: 1965-05-18
Abstract: Spinnable solutions of acrylonitrile polymers or copolymers having an acrylonitrile content higher than 85% by weight are prepared by polymerizing acrylonitrile, with or without an appropriate amount of one or more comonomers, in dimethylformamide in the presence of an organic peroxide catalyst and in the presence of from 0.02 to 0.04%, based on the weight of monomer(s), of thiourea dioxide (formamidine-sulphinic acid).  Lauroyl peroxide is exemplified as catalyst and in examples the acrylonitrile is copolymerized with (a) sodium allyl sulphate and methyl methacrylate and (b) sodium allyl sulphate and ethyl acrylate, polymerization being terminated at incomplete conversion of monomers.  Yarns having a good whiteness rating can be spun from the polymer solutions obtained.
Patent GB-1315375-A (GB)
Title: Display panel and control circuitry therefor
IPC: H01L27/06
Filed: 1970-05-01
Abstract: 1315375 Matrix displays OWENS-ILLINOIS Inc 1 May 1970 [2 May 1969] 20992/70 Heading G5C [Also in Division H1] The row and column conductors 11, 12 of a memory/display panel are supplied with opposite phase sustaining voltages and each conductor has an associated integrated circuit 20 or 21 which normally passes the sustaining voltage to its conductor 11, 12 and which responds to a low level logic input 57 to add a high level voltage V F  or V T  to the sustaining voltage to write or erase data. The positive half-cycles of the sustaining voltage are passed through the collector-emitter path of a row transistor Q2 while the negative half-cycles pass via the collector-base of Q2 and a diode D2. A positiveinput pulse 57 turns on Q1 so that the collector potential falls. Complementary transistors and opposite polarities are used for the column conductors.
Patent GB-613024-A (GB)
Title: Improvements in electric motor controllers
IPC: H02P25/26
Filed: 1945-08-17
Abstract: 613,024. Control of motors. IGRANIC ELECTRIC CO., Ltd. Aug. 17, 1945, No. 21014. Convention date, Aug. 17, 1944. [Class 38 (iii)] Electromagnetic switches controlling resistance in a motor circuit are associated with a controller therefor adapted to preselect the running speed of the motor and with relays controlling certain of them so that, independent of any operation of the controller, these electromagnetic switches are always set to give adequate starting torque before starting connections are made. The speed of the induction motor M (Fig. 1) is varied by varying deltaconnected secondary resistance. r-r2 by accelerating switches 1A-4A, every possible selection of which can be made by drum controller D (Fig. 2) to preset any one of 16 speeds. At standstill, slow-release relays 1TR and 2TR, which have condensers and resistances in parallel with their operating coils, are energized through the rectifier 23; they interrupt switches 1A, 2A and 4A and energize switch 3A, so adjusting the resistance to give high starting torque. The motor is started by depressing the push 11 to energize the relay 1CR, which maintains itself, energizes the forward switch F and de-energizes relay 1TR. On its release the push 11 energizes (through the limit switch 22) the relay 2CR which connects a feed to the controller D and de-energizes relay 2TR. After a time interval, relays 1TR and 2TR release, leaving switches 1A-4A under the control of controller D. The motor is stopped by push 13. The motor is reversed by push 12, which de-energizes relays 1CR and 2CR and switch F and energizes the reverse switch R. The motor is inched by the push 10, which energizes only the forward switch F. 'During normal running, the switch F and the relay 1CR energize the coil c of the " plugging " relay PR, to ensure that this relay is in the dotted position so that when the forward switch F opens, the brake relay BR is energized; this interrupts the feed to switches 1A-4A, energizes the reverse switch R for " plugging " and energizes the coil 7 to apply the mechanical brake B. Braking continues until the relay PR is re-set in the position shown by coil a (connected across the supply to the motor), overcoming the opposing coil b in the secondary circuit. In a modification (not shown), a single relay 3TR takes the places of relays 1TR and 2TR and not only de-energizes switches 1A, 2A and 4A, but energizes switch 3A through contacts in parallel with contacts on relay 1CR, and in series with contacts on an extra relay 3CR energized by an extra contact on the starting push 11; this latter relay deenergizes the relay 3TR and temporarily maintains itself through contacts on relay 3TR until the latter releases. This modification allows high torque to be re-applied for acceleration, by again pressing push 11 after its release and thereby again energizing relay 3TR.
Patent GB-152310-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M19/12
Filed: 1920-07-12
Abstract: 152,310. Pallas-Zenith Ges. April 2, 1919, [Convention date] Vacuum apparatus -Fuel is lifted to a carburettor from a container situated beneath it by connecting the float chamber to a region of low pressure in the induction pipe, which pressure is maintained constant by the provision of a suction-actuated member governing the section of the induction passage. As shown, fuel is lifted to a float chamber c containing a tip float d controlling an inlet valve b and passes through borings f, a conduit g controlled by a valve h, and passages i to outlet orifices l in the nozzle k. The float chamber c is connected by a pipe t to an opening s in the induction pipe, the suction at the opening s being maintained constant owing to the action of a suction-actuated member o which controls the air passage around the nozzle k. To damp the movement of the member o, chambers w, x are provided connected respectively by passages y, z to the atmosphere and to the mixing chamber m. The member o may be moved downwards, to close the fuel and air supplies, by a cam q on a hand-operated shaft v which bears against a bridge p on the member o. The Specification as open to inspection under Sect. 91 (3) (a) describes also the modification shown in Fig. 2 (Cancelltd), in which the fuel outlets l are arranged in a fixed cone k, the air passage being controlled by a suction-actuated cone o mounted on a shaft p<1> sliding in a fixed bridge p and provided at its lower end with a damping piston o'. The piston o' works in a chamber c', the space w above the piston communicating with the atmosphere through an aperture y and the space x below the piston communicating by a passage z and aperture z<1> with the mixing-chamber m. In a further modification, the suction-actuated member is arranged in the induction pipe beyond the mixing-chamber and a point in the induction pipe behind this member is in communication with the float chamber or with a low pressure fuel tank. This subject-matter does not appear in the Specification as accepted.
Patent GB-391430-A (GB)
Title: Improvements in or relating to printing processes
IPC: D06P1/22
Filed: 1931-07-23
Abstract: In printing textiles with vat dyes, particularly thioindigoid dyes, a metal or metalloid capable of exhibiting more than one valency, e.g. iron, copper, titanium, chromium, nickel, or arsenic, is added, either as free element, or in the form of an oxide, salt (e.g. acetate, halide or sulphate) or other compound, to the printing paste; prints of greater strength are thereby obtained.  The use of pastes containing 6 : 6<1>-dichlor-4 : 4<1>-dimethylthioindigo or 6 : 6<1>-diethoxythioindigo, ferrous chloride, nickel chloride, arsenic acid, mercuric chloride or copper chloride, and potash, glycerine and "Rongalite" (Registered Trade Mark) is described in examples.