baber/WOPTO huggingface dataset:
Patent GB-1023334-A (GB)
Title: Shadow mask type colour picture tubes
IPC: H01J29/07
Filed: 1963-04-17
Abstract: 1,023,334. Colour television tubes. HITACHI Ltd. April 17, 1963 [April 28, 1962; May 17, 1962], No. 15193/63. Heading H1D. A shadow-mask tri-colour television tube comprises a phosphor screen including phosphor dots of the same size and shape arranged in groups of three different light-emitting types without space between adjacent dots, and a shadow mask having holes of the same shape as the phosphor dots, e.g. hexagonal or diamond-shaped. A mask with straight-sided hexagonal apertures may be made by exposure to light through a diaphragm having hexagonal apertures with inwardly-curved sides, followed by chemical etching.
Patent GB-127481-A (GB)
Title: Improvements in the Manufacture and Production of a Material suitable for use as a Substitute for Celluloid, or Leather, and for like purposes.
IPC: C08C19/14
Filed: 1918-09-19
Abstract: 127,481. Broadhurst, H. M., Lamble, A., Peachey, S. J., and United Alkali Co. Sept. 19, 1918. India-rubber, halogenating.-In the production ,of a substance for use as a substitute for celluloid, leather, or the like by treating a solution of rubber with chlorine, or bromine and chlorine, the rubber is dissolved in benzene or a homologue. Chlorine is passed through the solution until the rubber has taken up approximately twice its weight of chlorine. The presence of catalysts is avoided. The hydrochloric acid produced is removed by heating, or neutralized, for example, i;y ammonia or lime.
Patent GB-815798-A (GB)
Title: Covers for road vehicles
IPC: B60J11/00
Filed: 1956-05-16
Abstract: 815,798. Motor vehicle covers. BROWN, N. P. J. Aug. 16, 1957 [May 16, 1956], No. 15278/56. Class 103(2) A car cover 1, Fig. 1, is held in place by a tensioning wire 2, Fig. 2, passing through hems 3 in the sides of the cover and then beneath the wings of the vehicle and through hooks or loops or flaps 5 attached to the ends of the cover. One end of the wire is attached to a plate having spaced slots and the other to a plate carrying a stud engaged with one of the slots. The second plate has an aperture alignable with another of the slots to enable the plates to be padlocked together. Fig. 4 shows a cover for a motor scooter held in place by a wire 12 threaded through loops in the tips of tongues 11 on the cover.
Patent GB-580463-A (GB)
Title: Improvements in gas ovens for domestic purposes
IPC: F24C15/32
Filed: 1944-08-10
Abstract: 580,463. Gas cooking-ovens. SMITH, C. D., and OTTON, D. H. Aug. 10, 1944, No. 15291. [Class 126] In a gas cook ing-oven the burners a are located at the base of a rear channel formed by a vertical partition c, the gases passing up the channel and forwardly over the upper edge c<2> of the partition intc the baking chamber. Exhaust ports e<1>, provided at the lower ends of the oven side walls; extend through the shelf racks e and the lining plates d and communicate with side flues f discharging at the rear of the oven. An aperture c<1>, for inspecting the flames, is provided at the bottom of the partition c.
Patent GB-1029523-A (GB)
Title: Optical measuring device
IPC: G01B11/14
Filed: 1964-04-14
Abstract: 1,029,523. Optical apparatus. SOC. GENEVOISE D'INSTRUMENTS DE PHYSIQUE. April 14, 1964 [April 29, 1963], No. 15304/64. Heading G2J. Optical measuring apparatus comprises a device for projecting, in the measuring axis, a mark on to the surface to be measured, and means for observing the projected mark in two directions symmetrical about the measuring axis, said means including an arrangement for recruiting the images of the projected mark in a single objective. The apparatus has a tubular body 4 mounted in a sliding support 1 and carrying at its lower end a frame 6. Light emitted from,a lamp 12 passes through an aperture of a reticle 15 contained in the frame 6, and is reflected by a mirror 23 on to the surface to be measured. Two similar prisms 32, 33 each having two reflecting surfaces are symmetrically disposed about the measuring axis 22 so that the image 28 of the aperture is picked up by the prisms 32, 33 and is reflected thereby in directions parallel to the measuring axis. The two images thus formed pass through the single objective lens 38 mounted in the lower end of the tube 4 and then pass through a fixed prism 40 at the top end of the tube 4 where they are reflected to an eye-piece 39. The measuring apparatus is vertically displaced until the two images observed in the eyepiece coincide, the position of the apparatus being measured on a graduated scale.
Patent GB-819760-A (GB)
Title: Improvements relating to fuel-injection installations for the combustion chambers ofgas turbines or jet propulsion units
IPC: F02C7/22
Filed: 1957-05-14
Abstract: 819,760. Gas turbine plant. DAIMLERBENZ A.G. May 14, 1957 [May 17, 1956], No. 15315/57. Class 110 (3). A fuel supply system for the combustion chamber of a gas turbine or jet propulsion unit comprises a high-pressure pump which supplies fuel to a duct common to all the fuel nozzles and in each branch duct leading to a nozzle there is inserted a fuel feeding device the several devices being in positive driving connection with one another. A fuel feeding device is stated to be a device capable of exerting an impelling effect on the fuel. A gas turbine jet propulsion unit comprises a compressor 12 supplying combustion air to a series of combustion chambers 16, 16<SP>11</SP> feeding a turbine 11 which drives the compressor 12 and the propeller 13 and exhausts through a propulsion nozzle 17. Fuel is supplied to the combustion chambers from a tank 20 by a highpressure pump 18 which discharges by way of a pipe 21 with five branches each of which contains a fuel feeding device as defined above 23, 23<SP>1</SP>, 23<SP>11</SP>, 23<SP>111</SP>, 23<SP>1111</SP> to injection nozzles in the combustion chambers. The devices 23, 231, 23<SP>11</SP>, 23<SP>111</SP> and 23<SP>1111</SP> are disposed on a common shaft 22. The fuel supply to the nozzies is controlled by a throttle valve 27 in the by-pass pipe 26. The arrangement is such that if one of the injection nozzles becomes blocked the device in its supply line acts as a pump which is driven by the devices in the supply lines to the other nozzles acting as motors. In a modification, the devices are driven from the gas turbine engine through an hydraulic coupling the slip of which is controllable or through an infinitely variable friction wheel gear. To assist atomization each nozzle may have a spring-loaded cut-off valve. The fuel supply may be controlled by varying the speed of revolution or the stroke of the highpressure pump or of the devices 23, 231, 23<SP>11</SP>, 23<SP>111</SP>, 23<SP>1111</SP>.
Patent GB-1533489-A (GB)
Title: Fuses
IPC: H01H85/46
Filed: 1977-04-14
Abstract: 1533489 Fuses ELECTRICITY COUNCIL 14 April 1977 [14 April 1976] 15339/76 Heading H2G A fuse system for alternating current supplies comprises conductors ACB, ADB forming a loop around a ferromagnetic core 15 and a conductor 10 coupled to the loop at A and forming at least one further loop around the core so as to induce current in the first loop, and a second conductor 12 connected by means of fusible means 14 to the loop at B, overheating caused either resistively in the fusible means 14 or conducted from the loop ACBDA causing melting of the fusible means and interruption of the current.
Patent GB-1429305-A (GB)
Title: Control systems for fuel systems for internatl combustion  engines
IPC: F02D41/40
Filed: 1972-04-04
Abstract: 1429305 Automatic control of speed CAV Ltd 21 March 1973 [4 April 1972] 15351/72 Heading G3R In a system for controlling the fuel supply to an I.C. engine the demand signal representing the output required from the engine is limited. The control system is similar to the one described in Specification 1416861. The demand signal is set by an operator using transducer 17', e.g. accelerator pedal, and this signal passes through transistor 56 which is used as a pair of diodes in this construction to control amplifier 18. As the demand signal increases more current flows into the emitter of transistor 56 until the voltage drop across variable resistor 57 causes the emitter and base potentials to be equal and no further increase in current occurs. Resistor 58 ensures that if transducer 17' goes open circuit the demand signal reduces to zero. A modified circuit using a p-n-p transistor is described, Fig. 7 (not shown).
Patent GB-1210766-A (GB)
Title: Improvements in or relating to polyvinyl fluoride
Inventor: BIER GERHARD
IPC: C08F14/20
Filed: 1969-03-24
Abstract: 1,210,766. Polyvinyl fluoride. DYNAMIT NOBEL A.G. 24 March, 1969 [28 March, 1968], No. 15386/69. Heading C3P. Polyvinyl fluoride is prepared by polymermerizing vinyl fluoride in an aqueous medium in the presence of trans-1,2-dichloroethylene as a chain-transfer agent. The trans-1,2-dichloro ethylene is preferably present in an amount of 0À05% to 0.5% by weight based on the vinyl fluoride. Suitable catalysts are azo-bis-isobutyramidine hydrochloride and potassium persulphate. Mixtures of polyvinyl fluoride with propylene carbonate are prepared in Example 8.
Patent GB-1468803-A (GB)
Title: Bulk-head valves
IPC: F16K5/06
Filed: 1974-03-25
Abstract: 1468803 Valves YARROW & CO Ltd 25 March 1974 [30 March 1973] 15410/73 Heading F2V In order that a valve may be manually actuated from either side of a bulkhead 1, two coaxial opposed spindles 12, 13 are attached to a closure member 3 and inclined to the bore 7 so as to lie on either side of the bulkhead. The closure member may be a spherical member with a bore or a butterfly valve member.
Patent GB-1391287-A (GB)
Title: Electrical spring contacts
IPC: H01H1/26
Filed: 1972-04-04
Abstract: 1391287 Switch contacts ELMEG ELEKTRO-MECHANIK GmbH 4 April 1972 [21. April 1971] 15512/72 Heading H1N A contact spring 5 Fig. 1 in a contact spring set 4, 5, comprises a pair of parallel spring blade or wire arms 9, 10 joined together at their free ends by a linear contact member 11 whereby the assembly has a low torsional resistance and the member 11 freely aligns itself with the plane of the co-operating blade 4. The arrangement may be operated from an actuator bar 12 of an electromagnetic relay. A pair of members 11 may be mounted on opposite faces of the arms 9, 10 for operation in a changeover contact set.
Patent GB-221778-A (GB)
Title: Improved process of and apparatus for testing coal or the like
IPC: G01N33/22
Filed: 1924-06-27
Abstract: 221,778. Koppers Co., (Assignees of Klaiber, W. J.). Sept. 12, 1923, [Convention date]. Carbonizing processes and apparatus. -A method of testing coal or similar material consists in embedding a small quantitv of the coal. enclosed in a container, in the mass of coal in a coke oven and converting the embedded coal into coke while protecting it against contamination and subjecting it to the pressure in the coke oven. The coal to be tested is charged into a container 2 so that the lid 4, which is provided with bolts 8 passing through slots 6, is positioned about midway of the slots to allow for contraction or expansion of the charge, the bolts being a loose fit in the slots and the cover being a loose fit in the container to allow of escape of gas from the coal under test. The container is placed in the coke oven so that the pressure of the surrounding coal is communicated to the coal under test through the sliding lid.
Patent GB-1148304-A (GB)
Title: Dynamo electric machines
Inventor: BYRNE JAMES ANTHONY
IPC: H02K19/24
Filed: 1965-04-12
Abstract: 1,148,304. Dynamo-electric machines. ENGLISH ELECTRIC CO. Ltd. 6 April, 1966 [12 April, 1965], No. 15571/65. Heading H2A. In a dynamo-electric machine comprising within a housing 11 a rotor 12 having a shaft 13 at one end and concentrically disposed between a first magnetic assembly 33 or 30 comprising an annular field coil 36 and a second magnetic assembly 30 or 33 comprising an armature winding 31, the rotor 12 has two annular magnetic members 22, 23 which are spaced apart by a non-magnetic spacer 24 each of the magnetic members carries a set of polepieces 25 which are interdigitated and the rotor 12 is supported for rotation by first and second bearing means 14, 15 at its ends, and the inner one of the magnetic assemblies 33 is supported at one of its ends from the housing 11 and at its other end from the rotor 12 through a third bearing means 40. The connection between the stator 30 and the housing 11 may be resilient. As shown the stator 30 is mounted by a roller bearing 40 on a rotor shaft extension 41. The rotor is formed of two magnetic rings 22, 23, having claw-like polepieces 25 separated by a brass ring 24 which are all clamped together by bolts 26 or alternatively secured by brazing. With D.C. supplied to the field coil 36 the poles 34, 35 provide the rotor polepieces 25 with alternate polarities. As shown in the form of an A.C. generator, if the shaft 13 is coupled to a prime mover, A.C. is generated in the outer stator winding 31. The positions of the D.C. wound stator 33 and A.C. wound stator 30 may be interchanged. When the outer stator 30 has an A.C. winding it may be arranged to rotate and may carry rectifiers so as to form a D.C. generator. The machine can also operate as a synchronous motor or as an electromagnetic slip coupling or brake.
Patent GB-887119-A (GB)
Title: Improvements in or relating to control means of hydraulic jacks
Inventor: WOOLCOCK STANLEY RICHARD
IPC: E04G21/12
Filed: 1959-05-06
Abstract: 887,119. Wire strainers. CUFFLIN HOLDINGS Ltd. July 26, 1960 [May 6, 1959], No. 15598/59. Class 45. [Also in Group X] A hydraulic jack designed for stressing wires in a concrete or other structure is controlled by a two way valve 15 and three-way valves 23, 32, 41 mounted in a single block. The valve 15 is used to by-pass fluid from the supply pipe 18 to the return pipe 20, the valve 23 to supply fluid to a gripping device for securing the end of the stressed wire in the structure, and the valve 32 to retract the ram of the jack after it has been extended using the valve 41. Non- return valves 31, 40 take excess pressure away from the valves. The valves 15, 23, 41 are actuated by handwheels, the handwheel 37 being geared to the valve 32 so that this valve is open when the valve 41 is closed.
Patent GB-540874-A (GB)
Title: Improvements in circuit arrangements for gaseous electric discharge devices
IPC: H05B41/10
Filed: 1940-10-24
Abstract: 540,874. Electric supply to discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 24, 1940, No. 15629. Convention date, Oct. 24, 1939. [Class 38 (iv)] [Also in Group XL] The A.C. supply to a discharge lamp is, at first, through a resistor 9 (e.g. a filament lamp) through the upper thermionic electrode 2 and through the normally closed contacts of an electromagnetic switch 10, the operating coil of which is energized in accordance with the voltage across the resistor by current through a rectifier 12. When the electrodes are sufficiently heated the voltage across the lamp which increases as it becomes heated (it may have the same type of filament as the electrode so as to ensure similar resistance-temperature characteristics, becomes adequate to open the switch ; the resulting "kick" in the conductive supply circuit serves to start the lamp, the switch being maintained open by the discharge current.
Patent GB-799571-A (GB)
Title: Heat exchange apparatus
IPC: F28F9/22
Filed: 1956-05-18
Abstract: 799,571. Tubular heat exchangers. UNITED AIRCRAFT PRODUCTS, Inc. May 18, 1956 [June 14, 1955], No. 15630/56. Classes 64(2) and 64(3) In a heat exchanger comprising a casing surrounding a nest of spaced heat exchange tubes, a valve controlling the quantity of a fluid flowing through the :asing and over the tubes is actuated by heat sensitive means disposed in the flow of another fluid as it leaves the tubes. In the form shown lubricating oil directed by baffles 34 in a sinuous path over an assembly of tubes 33 of the kind described in Specification 798,708 is cooled by liquid fuel flowing through the tubes. The fuel, on leaving the tubes flows over the heat sensitive portion 55 of a thermally actuated valve 58 which operates to allow more or less oil to flow through the inlet 86 to the tube assembly, the oil flow being so regulated by the valve as to provide a uniform temperature for the fuel as it passes through the outlet port 37 to the engine. The valve assembly is contained in a housing 11 and comprises a casing 55 from which extends on one side a shaft 54 and on the other side a shaft 56, the latter being connected to the poppet valve 58. Axial movement of shafts 54, 56 to operate the valve is effected by thermally expansible material contained in chambers 59, 61 in the casing 55, the forces exerted by said material on heating, tending to move the shafts 54, 56 in opposite directions. A cage 66 prevents movement of shaft 54 in the direction of the force exerted by the material in chamber 59 which force is normally insufficient to compress the spring 68 and therefore both shafts actually move in the same direction tending to move the valve 58 to the closed position. When the thermally responsive material contracts on cooling, springs 69, 73, which are compressed as the valve closes, act to move the valve to its open position. Specification 766,614 also is referred to.
Patent GB-1497637-A (GB)
Title: Apparatus for dispensing tape
IPC: B65B41/00
Filed: 1976-04-15
Abstract: 1497637 Tape dispensing apparatus OWENSCORNING FIBERGLAS CORP 15 April 1976 [5 May 1975] 15632/76 Headings B8F and B8M Apparatus for dispensing tape 146, Fig. 5, from any position along a path which is transverse to the direction in which the tape is dispensed comprises a frame 92 having an elongate drive member 110 supported thereon, and at least one tape dispenser 78 supported on the frame and movable therealong, each dispenser 78 having a rotable driven member 180 engageable with the elongate drive member 110  at any position, therealong and a tape drive roll 158 driven by the member 180 and positioned to engage and disperse tape 146 from a supply 144 thereof. Each dispenser 78 rests on rods 186 and 190 on the frame 92 and is clamped to the frame by a clamp 194. Releasing the clamp enables the position of the dispenser 78 on the frame to be adjusted. There may be two frames 92, 80 mounted one above the other and movable along rails 98, 100, 86 and 88 to move them to and from their operative positions. Each frame is provided with a plurality of dispensers 78 each of which is formed with a pocket 142 holding a roll of tape. The tape 146 passes between a wall 152 and a hold-down plate 154 and between a pressure roll 156 and the drive roll 158, the rolls extending through openings in the plate 154 and wall 152. It is cut to the required length by a stationary blade 206 and a vertically movable blade 210 having a slanted upper edge. Water is applied to the upper surface of the tape by a brush 246 to activate the adhesive. The brush 246 is supported in a holder 242 pivotally carried by brackets 230 through pins 244 and has water directed thereon from a nozzle block 252. Excess water drains through holes in a platform 236 supporting the tape. After being wetted, the tape passes to a conveyer comprising a plurality of narrow belts 264 passing around pulleys 260 and 262 and is held thereon by suction. The tapes then pass to a conveyer (60) Fig. 1 (not shown) which feeds them to a packaging machine of the type disclosed in Specification 1,475,198 for packaging strips of insulation in roll form.
Patent GB-496582-A (GB)
Title: Improvements in deposit blow off valves
IPC: F22B37/54
Filed: 1937-06-05
Abstract: 496,582. Blow-off valves. BEZ, C. June 5, 1937, No. 15670. [Class 135] [Also in Group XIII] A blow-off valve 6 for deposit in a boiler &c., of the kind opened by admission of steam at 11 to a piston 9, is provided within the body with a safety flap-valve 36. The flap-valve is normally held open by a spring-bolt engaging a notch on an arm on the pivot 37 and is allowed to close under the influence of a spring acting on the arm and/or by the rush of the stream, on withdrawal of the bolt by means of a Bowden wire. The flap-valve is re-set by a handle on the squared end of the pivot 37. The valve 6, which may be replaced by a sliding valve, may be closed by a spring 31 with or without the admission of steam under the piston.
Patent GB-1510732-A (GB)
Title: Magnetometer
IPC: G01R33/05
Filed: 1975-04-16
Abstract: 1510732 Magnetometers MISHIMA KOSAN CO Ltd 16 April 1975 15746/75 Heading G1N A magnetic thin film fluxgate magnetometer includes a phase sensitive detector circuit. In the embodiment of Fig. 3 A.C. from source 11 and amplifier 12 is fed to the excitation winding of a magnetic thin film 13. The signal induced in the detector winding of the film 13 and which is assymetrically amplitude modulated in accordance with the strength of the magnetic field being measured is fed to a phase detecting circuit comprising amplifier 26, amplifier 27 tuned to twice the frequency of the source 11 and a phase detector 28 to which is applied a reference signal from amplifier 12 which is frequency doubled at 30 amplified in tuned amplifier 32 and fixed in phase by phase shifter 32. The demodulated output from detector 28 is then after amplification fed back as a magnetic field nulling current via impedance 8 to the detector winding of the sensor 13 and fed to a further phase detection circuit including a differential amplifier 16 which eliminates the D.C. component from the output and amplifies the A.C. component only, a tuned amplifier tuned to the frequency of the source 11  and a phase detector 18. The reference signal for detector 18 is obtained by amplifying 19, converting into a aquare wave in circuit 20, amplifying with tuned amplifier 21, fixing in phase with phase shifter 22 and shaping 23 the output of amplifier 17. The output of the phase detector is fed via an integrating amplifier 24 to meter 25. In a simplified arrangement, Fig. 2 (not shown) the phase shifter 26, 27, 28, 30, 31, 32, may be replaced by a signal processor. Other modifications include feeding a reference phase signal to the detectors from an external source. Details of various forms of sensing elements 13 are described Figs. la to 1d (not shown) in which the A.C. is fed to conductor(s) coated with thin film material and provided with detector winding(s) or to a detector winding wound around a thin film.
Patent GB-1254765-A (GB)
Title: Improvements in the production of metal fibers
IPC: C22B5/00
Filed: 1969-03-26
Abstract: 1,254,765. Making metal fibres. GENERAL ELECTRIC CO. March 26, 1969 [April 22, 1968], No. 15755/69. Heading C7D. Metal fibres are formed by reducing a sulphide of Cu, Ni, Co or Ni-Co with H 2  or a gas mixture containing H 2  in the presence of a scavenger for H 2 S. The maximum temperature at which the process is performed is the eutectic of the appropriate metal-metal sulphide system. Suitable H 2  mixtures are 10% H 2 /90% N 2  and cracked NH 3 . Suitable scavengers are CaO, Ca(OH) 2  and CaCO 3 . Particulate sulphide and scavenger are preferably mixed and submitted to the process spread on trays which are passed through a furnace.
Patent GB-956029-A (GB)
Title: Improvements in or relating to electric measurement transmission systems
IPC: G01L21/00
Filed: 1961-05-01
Abstract: 956, 029. Measuring electrically. LEYBOLD HOLDING A. G. May 1, 1961 [April 29, 1960], No. 15771/61. Heading G1N. A cable capable of carrying large and small currents alternately, comprises a coaxial cable 5 including an insulated inner conductor 51 surrounded by a screen 53, and a second conductor 6 arranged outside the screen, the screen being connected to the inner conductor while a large current is transmitted, and to the outer conductor and earth while a small current is transmitted. The cable is used in conjunction with an ionisation manometer . 1, ganged switches 7, 10 completing the necessary connection during the heating and degassing and the measurement periods. The measurement current is therefore not affected by spurious currents due to the capacitance of the dielectric, following the passage of the heating current. The outer conductor 6 may be a single wire or a sheath coaxial with conductor 5.