baber/WOPTO huggingface dataset:
Patent GB-1400671-A (GB)
Title: Circuit for controlling the infeed in spark erosion machines
IPC: B23H7/18
Filed: 1973-03-12
Abstract: 1400671 Automatic control of electroerosion AEG-ELOTHERM GmbH 12 March 1973 [25 March 1972] 11832/73 Heading G3R [Also in Division H3] The feed of an electrode in an electro-erosion machine is controlled in accordance with differences between pulses representing mean detected spark potential and reference pulses. The actual detected potential is converted to one of three predetermined voltage levels before comparison with the reference pulses so that the same reference level can be used for a range of operating currents and voltages. As shown, a working gap 2 receives voltage pulses from a generator 1 and the resultant spark potential Usp is detected by a circuit 5 which includes comparators for determining whether short-circuit, non-working or normal erosion conditions prevail in the gap. As a result of the comparisons, an appropriate output 6, 7 or 8 is energized so as to close a corresponding switch 11, 12, 13 in a circuit 9, thus connecting an output terminal 10 with zero voltage if the gap is shortcircuited, a high voltage UL if non-working conditions exist, or an intermediate voltage U B ' if normal working is proceeding. The resulting output voltage signal U sp ' is compared with constant amplitude reference pulses U s  in a circuit 14, and the mean difference over a number of pulses is used to control a feeding mechanism 15 for the electrode 3. The circuits 5, 9 may include NAND gates and switching transistors, Fig. 4 (not shown).
Patent GB-1154284-A (GB)
Title: Device for Reducing Localized Overheating in Oil-Filled Power Cables
IPC: H02G15/24
Filed: 1968-03-12
Abstract: 1,154,284. Electric cables. PIRELLI s.p.A. 12 March, 1968 [14 April, 1967], No. 11907/68. Heading H1A. A device for reducing localized overheating in an electrical conductor having an internal duct 7 for coolant fluid either increases the rate of flow of coolant or the distance travelled by it, or both, so improving the cooling. The former may be accomplished by reducing the crosssectional area of the duct, possibly by the incorporation of a coaxial shaft 8; if a helical partition 9 is disposed about the shaft, extending radially all across the duct, both rate and distance of flow increase, the pitch of the helical partition and the cross-sectional area of shaft being calculated to give the desired Reynolds number for the flow. The coolant may be oil.
Patent GB-1062958-A (GB)
Title: Deposition by means of electrophoresis
IPC: C25D13/00
Filed: 1965-03-19
Abstract: A layer of insulating material such as mica, lacquer, shellac or synthetic resin is electrophoretically deposited on a body e.g. copper strip using an aqueous dispersion having a conductivity below 0.001 mho/cm.  As dispersions, there may be used suspensions of mica with binding agent in water, colloidally dispersed aqueous resin emulsions such as liquid lacquers, water-soluble shellac, phenol or (poly)acrylate resins or silicone resin.  Lacquer layers may be stored after electrodeposition.
Patent GB-568420-A (GB)
Title: Improvements in hoes or the like
IPC: A01B69/06
Filed: 1943-07-23
Abstract: 568,420. Agricultural implements. MAULE, J. F., and MAULE, T. July 23, 1943, No, 11985. [Classes 6 (i) and 6 (iii)] Hoes and similar implements are provided with steering means distinct from that on the towing vehicle &c. The tool frame consisting of bars 2, 3, 4 is secured by the bar 4 beneath the front of the tractor 1. The cross-bar 3 carries laterally-adjustable ground-wheels 6. The tool-bar 7 is supported by triangular frames 8 and vertical pivots 9 on the longitudinal bars 2. Stays 18 support a seat 17 and a transverse stay 20 supports the steering column 19 which is connected by links 21, 22 to the tool-bar 7. As shown, the tools are arranged in sets, each set being permitted to rise and fall independently of the others. Lifting gear, operated by worm and wheel and linkwork from the power take-off shaft is also provided.
Patent GB-959685-A (GB)
Title: Radio frequency amplifier
Inventor: BASS JOHN CHARLES
IPC: H01J25/49
Filed: 1961-04-04
Abstract: 959,685. Space-charge-wave tubes. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 21, 1962 [April 4, 1961], No. 11996/61. Heading H1D. A radio-frequency amplifier comprises within an evacuated envelope an electron gun 1, means 4 whereby an alternating radio-frequency input signal can be applied to the beam and under the action of an axial magnetic field produce transverse accelerations and displacement of the electrons to form a cyclotron wave, a series of electrodes 5 having circular apertures 12, 13, 14 through which the beam passes, each alternate electrode being biased to a potential above the potential of the beam, each remaining electrode being biased to a potential below the beam potential so as to form a spacially periodic structure so that the electron transit time through each period of the structure corresponds to a period of the cyclotron frequency such that the cyclotron wave is amplified, and an output coupling 6 by which the energy of the cyclotron wave is converted into a radio-frequency output signal. The diameter of the apertures may increase down the beam so that the structure does not intercept the beam with increasing beam diameter, and the arrangement is such that the reduction in velocity of the electrons in passing through an aperture is counteracted, e.g. decreasing the spacing between electrodes, decreasing the magnetic field or adjusting the bias potentials. The coupling structures 4, 6 may be of the parallel plate type as shown, or alternatively may be a resonant cavity having a double ridge and of circular or rectangular crosssection, and operating with a transverse electric mode. A mathematical analysis of the device is given.
Patent GB-200620-A (GB)
Title: Improvements in internal combustion engines
IPC: F02B25/00
Filed: 1922-04-29
Abstract: 200,620. Dawe, G. S., and Moon, E. W. April 29, 1922. Cam mechanism.-In an internal-combustion engine the power and pump pistons are on a common piston-rod extended beyond the pump chamber 6 to carry an inclined cam-disc 13. The edge of the disc works between two rollers 14, the disc piston-rod and pistons 3, 5 all rotating as they reciprocate. Teeth 15 cut in the disc gear with and drive a spur-wheel 16, which through bevel gear 17, 18 drives the fly-wheels shaft 19.
Patent GB-377932-A (GB)
Title: Improvements in apparatus for winding wire on spools
IPC: B65H54/42
Filed: 1932-04-27
Abstract: 377,932. Winding wire. NORTON & CO., Ltd., SIR J. F., Adelphi Iron Works, Salford, Manchester. April 27, 1932, No. 12076. Convention date, April 30, 1931. [Class 120 (ii).] In apparatus for winding wire upon spools of the type in which the spools are driven by surface contact between the wire on the spools and a driving belt, the drive is effected by a plurality of relatively narrow belts arranged side by side. The base a carries the bearings b of a driving shaft c, driven by a pulley d, and carrying a pulley e with a grooved periphery to accommodate five V-shaped belts f side by side. A frame g is pivoted about the upper portion of the bearings b and carries at h a shaft i with a multi-grooved pulley j. The frame is supported on the base a by a wheel k and is cut away at g<1> so that the belts f can engage the periphery of the spool n which is carried by the frame o on the base a and on to which the wire is being wound. A weight p acting on a rope q pulls on the frame g at the bearing h of the spindle i and causes the belts f to press against the spool n. A handle r serves to move the frame away from the spool. The back or operative side of each belt is preferably round or arched and the belts are preferably made of rubberized fabric.
Patent GB-789375-A (GB)
Title: A pump or engine of the oscillating-vane type
IPC: F01C9/00
Filed: 1954-04-28
Abstract: 789,375. Rotary engines and pumps. DELMER, H. April 28, 1954 [April 29,1953], No. 12271/54. Class 110 (2). The engine or pump comprises a piston 6, oscillating about a pivot 7 to sweep through crescentshaped working chambers C formed between the piston and a casing bore B. A parking block 13 bears over an arc D in a baseplate 10, the curve being struck on a radius R with centre P. A shaft, in a bearing, extends into a slot 14, within the piston, to which it is coupled by an eccentric 19, on the shaft, a link 15 being mounted through a bearing 17 on a pin 18. For a pump suction and delivery ports, containing non - return valves, are provided for each working chamber. Fig. 2 shows spring-loaded suction and delivery valves carried in a plate 31 which is secured to the casing of the pump. The plate has suction ports 33, direction Z, arranged in a ring, and another ring of ports 38 for delivery of the fluid in the direction W. Openings 34, communicating with ports 33, are closed by a ring 35, held on its seat by springs 36 which bear against a circular abutment, centred about an axis 42 and provided with openings 331 and 38<SP>1</SP> corresponding to the ports 33, 38. Similarly the ports 38 are closed by a ring 39 held on its seat by springs 40 which bear against a circular abutment 41, also centred on an axis 42 and provided with opening 38<SP>11</SP> forming a passage for the discharge W. In operation, the rings 35, 39 alternately reciprocate against the pressure of springs 36, 40. Steel pistonrings 50, pressed axially by springs 51, act as end packings on the piston. Cooling fins 2 are provided on the casing.
Patent GB-108745-A (GB)
Title: Improvements in Ignition Terminals more particularly for use in Aeroplane Engines.
Inventor: BOOTH RICHARD GEORGE
IPC: H01T13/04
Filed: 1916-08-30
Abstract: 108,745. Booth, R. G. Aug. 30, 1916. Cable and wire terminals; plug couplings.-Relates to ignition terminals for internal-combustion engines wherein a ballshaped head on one part is adapted to be engaged by split jaws or a socketed plug a on the other part, the jaws being held in engagement with the head by a spring-actuated sliding-member e disposed within an outer sleeve l and acting on the cone-shaped exterior of the jaws. According to the invention, the wires j are passed through a partition h in a sleeve g screwed on to the stem f of the plug and they are pressed by the sleeve against a conical end on the plug.
Patent GB-324298-A (GB)
Title: Improvements in jigger heads for supporting divided moulds for shaping teapot bodies and other hollow ware
IPC: B28B1/02
Filed: 1929-04-22
Abstract: 324,298. Farr, C., and Boulton, Ltd., W. April 22, 1929. Addition to 300,102. Pottery, throwing and turning. - The jigger - head mouldclamping mechanism in the parent case is used to clamp vertically-divided moulds instead of horizontally - divided ones. Thus, the three-part mould 1, 2, 3 illustrated, provided with the usual positioning dowels 4, 5, is clamped against both radial and axial movement by the arms c constructed as in the parent Specincation.
Patent GB-1305502-A (GB)
IPC: C07D263/06
Filed: 1971-04-30
Abstract: 1305502 N-secondary alkyl alkane diamines and derivatives thereof PFIZER Inc 30 April 1971 [16 Dec 1970] 12527/71 Heading C2C [Also in Division A5] Novel compounds of the Formula II or III and acid addition salts thereof wherein Y is (CH 2 ) n , where n is 2 to 5; R 1  is C 4-13  alkyl; R 4  is hydrogen, C 1-20  alkyl, C 3-7  cycloalkyl or phenyl optionally substituted by halogen, C 1-4  alkyl or alkoxy, cyano or trifluoromethyl; R 5  is R 4  or thienyl, furyl or pyridyl; or R 4  and R 5  together with the carbon atom to which they are attached are C 3-7  cycloalkyl may be prepared (a) in the case of II by reacting a compound of the Formula I wherein one of R 2  and R 3  is CH 2 CH 2 OH and the other is hydrogen with an aldehyde or ketone R 4 R 5 C = O; (b) in the case III reacting a compound of the Formula I wherein R 2  is hydrogen and R 3  is C 1-20  alkyl with an aldehyde or ketone R 4 R 5 C = O.
Patent GB-528085-A (GB)
Title: Fitting fastener
IPC: A44B13/00
Filed: 1939-04-27
Abstract: 528,085. Hook fastenings. FENNING, K. April 27, 1939, Nos. 12609 and 12610. Convention dates, April 29, 1938, and Oct. 17, 1938. [Class 44] A fastening device applicable to wearing apparel to give adjustable fitting comprises two separated edges of fabric, leather, rubber &c. forming a channel therebetween which is bridged by a series of bars or the like with any one of which bars a hook 26 may be engaged such hook having a tongue longer than the distance between the bars. For instance, a fabric base 30 has placed thereon two riser strips 21, 22 which are secured by staples 24 but leave a channel 23 bridged by the staples.
Patent GB-1223760-A (GB)
Title: Process of bonding an impregnated overlay material to a substrate material
IPC: B44C5/04
Filed: 1968-03-15
Abstract: 1,223,760. Laminating; forms of wood. WEYERHAEUSER CO. 15 March, 1968 [4 April, 1967], No. 12701/68. Headings B5L and B5N. A method of simultaneously curing an impregnated overlay material and bonding it to a substrate material comprises, (a) impregnating the overlay material thoroughly with an impregnant capable of being cured or polymerized by high energy ionizing radiation, (b) bringing the impregnated overlay material into intimate contact with a substrate material coated on the surface to be contacted with a bonding material capable of being polymerized or cured by high energy ionizing radiation and having a viscosity sufficient to prevent rapid absorption into the substrate material, and, (c) while in intimate contact exposing the resulting product to high energy ionizing radiation to bond the overlay material to the substrate material. As described the overlay material is of paper impregnated by immersion, or of wood impregnated by a vacuum-pressure or solvent-replacement technique. The impregnant may be an acrylic ester, a di- or tri-methacrylate, an epoxy acrylate, an unsaturated polyester, or a vinyl ester. These materials may be used in monomer form or as a solution of polymer in monomer. Mixtures may be used. The bonding material may be the same as the impregnant. It may be a solution of a polyester, polyacrylate, polymethacrylate, or vinyl chloride copolymer in acrylic or dimethacrylate monomers. The bonding material may include extenders or inert fillers e.g. wood flour, bark, clay or protein flour. The substrate may be wood, plywood, hardboard, particle board, metal, concrete, or plastics e.g. phenolic or polyester laminates. The radiation may be particulate e.g. of highly accelerated electrons or nuclear particles, or electromagnetic. The bonding may be carried out at from 0‹ to 100‹ C. and may be under pressure produced in a vacuum bag or by means of a grid which is arranged not to block the radiation. The laminates may be used in furniture, countertops doors, or wall panels.
Patent GB-731826-A (GB)
Title: Improvements relating to apparatus for measuring the moisture content of granular orpowdered materials
Inventor: FINN-KELCEY PETER GERARD
IPC: G01N33/10
Filed: 1952-05-20
Abstract: 731,826. Hygrometers. BRITISH ELECTRICAL & ALLIED INDUSTRIES RESEARCH ASSOCIATION. May 20, 1953 [May 20, 1952], No. 12740/52. Class 97 (3). [Also in Group XIX] An apparatus for testing the moisture content of granular or powdered solids comprises a weighted body, having a sharp wedge-shaped edge, arranged to be retained above the surface of the material to be tested and which, upon release, can fall freely and penetrate the surface of the material to a distance which is said to give a measure of the moisture content. As shown in Fig. 1, a body C, loaded with weights G and provided with a long blade A, is held in its upper position by a pivoted catch H which may be depressed to allow the body C to fall freely past guide rollers D. The material to be tested is loaded into a container P<SP>1</SP> and consolidated by rotating a handle W a predetermined number of times, the rotation of the the rotation of the handle W causing a cam U to lift and drop the container P<SP>1</SP>. The upper portion P of the container P<SP>1</SP> is pivoted at P<SP>2</SP> so that it may be swung to one side to level of the material and then swung back again to the position shown. The catch is then depressed releasing the body C and the depth to which the blade A enters the material under test may be ascertained from a scale L by means of the index K. The blade A may be flat with a double-chisel edge. An alternative form of blade, Fig. 4, comprises a cylinder Y open at both ends and with a double-chisel edge Z at its lower end.
Patent GB-218071-A (GB)
Title: Improvements in and connected with boats for conveying cargo between a ship and the shore and similar purposes
IPC: B63B17/02
Filed: 1923-05-14
Abstract: 218,071. Fleming, I. R. May 14, 1923. Surf-boats are internally strengthened by upper and lower longitudinal members 1 which may be connected by members 2 serving as a foundation for a partition which leaves the central part 5 of the boat available, for cargo. A waterproof cover 4 sufficiently arched and overlapped at the centre serves to deflect spray into the longitudinal passages outboard of the partitions 2 and accumulation of water is discharged outboard by way of ducts provided with non-return valves. The forward part of the boat may be provided with a hood 4<x> supported by hinged hoops 12 secured in metal sockets 13 pivoted to slides 14 running on rails 15. The cargo hold may also be covered by a hood instead of the overlapping sheets, the hood being supported by arches working on fore and aft runners.
Patent GB-926044-A (GB)
Title: Improvements relating to translating apparatus
Inventor: WARMAN BLOOMFIELD JAMES
IPC: H04Q3/42
Filed: 1959-04-15
Abstract: 926,044. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 22, 1960 [April 15, 1959], No. 12843/59. Class 40 (4). A translator comprises a code point such as CP572 for each exchange code and a matrix of gates T11 . . . T80 having one row per translation digit and one column per digit value, each code point being cross-connected to the input of one gate in each row, the column associated with that gate indicating the value of the digit associated with the row. As shown, the A, B, C digit switches when set to 5, 7, 2, respectively, cause point CP572 to go negative, thereby applying enabling potentials to the backs of transistor gates T12, T28 . . . T80. Switches S1 . . . S8 are closed in turn, as and when the appropriate translation digit is required, to put a near-earth potential on the emitters of the horizontal rows so that if, say, S1 is made transistor T12 conducts to energize lead 2 via amplifier U2. Thus as S1 . . . S8 are made in sequence the translation 28 . . . 0 is provided.
Patent GB-560010-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M3/09
Filed: 1942-09-11
Abstract: 560,010. Spray carburetters. BENDIX AVIATION CORPORATION. Sept. 11, 1942, No. 12869. Convention date, April 2, 1942. Addition to 549,576. [Class 7 (iii)] In a carburetter according to the parent Specification, having the spring-closed valve 296 for closing the air bleed to the idling system actuated by a piston 274 responsive to suction posterior to the throttle valve 226, the piston 274 also actuates an economizer valve 264 adapted to enrich the fuel mixture when the engine is working under heavy load, the valve 264 being opened when the piston 274 is in " bleed closed " position. In the downdraught carburetter shown, the piston 274 moves in a cylinder connected by ducts 278, 280, 282, 284 to the mixture passage 224 beyond the throttle, and a recess 296 around the piston is adapted to connect passages 286, 287, so that air is bled to the idling system from the air inlet 218 through passages 286, 287, 288 and a restricted orifice 290. A spring 270 around the stem 268 of the piston 274 tends to hold the piston in " bleed closed " position, the stem then opening the economizer valve 264- to admit extra fuel from the float chamber 234 to the fuel well 244. An air bleed passage 300, permanently open, prevents fuel from siphoning into the #-shaped passage 248, 250, 252 conveying the idling fuel from the well 244 to the idling jets 254, 256. Air is bled to the main fuel nozzle 238 from a passage 242 connected to the well 244, with which the nozzle 238 communicates through openings 246. The invention is applicable to updraught carburetters and to carburetters of multiple-barrel construction or having independent main and idling fuel systems.
Patent GB-466923-A (GB)
Title: Improvements in or relating to photographic or cinematographic cameras having photoelectric exposure meters
IPC: G03B17/20
Filed: 1936-05-07
Abstract: 466,923. Photographic cameras provided with exposure meters ; indicating- apparatus. ZEISS IKON AKT.-GES. May 7, 1936, No. 12920. Convention date, Nov. 28, 1935. [Class 98 (i)] [Also in Group XIX] The camera is provided with a view-finder, a base telemeter, and a photo-electric exposure meter, the measuring instrument of which is visible from above the camera and also by way of ray-deflecting means, from the rear, through the view opening of the view-finder or telemeter. As shown, in a camera provided with a telemeter, 1, 2, 3 and a view-finder 1, 4, the pointer 8 of the measuring instrument has a bent-over end, and is viewable through either of two openings 9, 10, in the angle end of the fixed scale member 7. Observation through opening 9 is made from above ; while observation through 1 is made by rays passing laterally through the view-finder to a fixed mirror 12 which reflects them to the view-finder and telemeter window 1. Glass members 5 and 11 are provided to shorten the ray paths in the various devices.
Patent GB-952333-A (GB)
Title: Improvements in and relating to the linking of twin-component aviation systems
Inventor: SIMMONS ANTHONY THOMAS FREDERI
IPC: B64D3/02
Filed: 1960-04-12
Abstract: 952,333. Controlling composite aircraft. ENGLISH ELECTRIC CO. Ltd. April 5, 1961 [April 12, 1960], No. 13030/60. Headings B7G and B7W. [Also in Division H4] Relates to a system for landing a conventional aeroplane 1 with the aid of a piloted flying platform 2 capable of vertical take-off and landing and of horizontal flight at a speed exceeding the normal stalling speed of the aeroplane 1 in which the platform 2 is flown upwards towards the aeroplane 1 from a position below and astern thereof to a position in which contact is made with the wheels of the aeroplane 1, sufficient force is applied thereto to take the full weight of the aeroplane, an automatically or manually controlled lock-on gear secures the aeroplane to the platform and the platform carrying the aeroplane is then landed vertically. According to the present invention an optical or near optical radiation source A is mounted underneath the aeroplane 1, two transversely spaced directional sensing heads B1 and B2, Figs. 1 and 2, on the platform 2 are directed at the source A and means are provided for deriving from the longitudinal component # 1 , Fig. 1, and the lateral components # 1 , # 2  of the sighting angles of the heads B 1  and B 2  the pitch, roll and thrust demand signals required to fly the platform 2 to the aeroplane 1, the pitch and roll demand signals # and # being applied to an automatic pilot and the incremental forward thrust demand signal #T being applied to a flight director display. As described with respect to Figs. 4, 5 and 6 (not shown), the demand signals are computed in accordance with the equations where A, B ... G are constants, the pitch and roll ratio d#/dt and d#/dt are measured by rate gyros and a is the forward acceleration. Each sensing head may comprise an auxiliary reflector near the focus of a main parabolic reflector and a radiation sensitive cell at the centre of the main reflector, Fig. 3 (not shown).