baber/WOPTO huggingface dataset:
Patent GB-1106860-A (GB)
Title: Improvements in or relating to time division communication systems
IPC: H04J3/20
Filed: 1966-12-20
Abstract: 1,106,860. Automatic exchange systems. WESTERN ELECTRIC CO. Inc. 20 Dec., 1966 [28 Dec., 1965], No. 56879/66. Heading H4K. In a time division multiplex system in which lines 1 to n connect over a bus 12 to GO and RETURN highways XMT and RCV, a single amplifier AMP works in both directions under control of a switch 20. In each time slot a transmit function with switch 20 on its T pole is followed by a receive function with switch 20 on its R pole. In its transmit mode AMP has R t  connected for negative feedback and resistor R r  in the input. In its receive mode AMP has R r  as negative feedback and R s  in the input. If resonant transfer is employed the time constants for the transmit and receive functions are different, a line gate such as k being closed longer to transmit than to receive. Before a gate such as k closes to receive, the switch 20 will have been in the receive mode sufficiently long to discharge the bus 12 into the low output impedance of the amplifier AMP.
Patent GB-1293791-A (GB)
Title: Impact resistant rubber-resin compositions
Inventor: FOGG SIDNEY GEORGE
IPC: C08F265/04
Filed: 1968-12-03
Abstract: 1293791 Impact resistant acrylate rubber compositions BP CHEMICALS Ltd 10 Nov 1969 [3 Dec 1968] 57246/68 Heading C3G An impact resistant thermoplastic composition comprises 10 to 40 parts by weight of C 4  to C 8 -alkyl acrylate-acrylonitrile copolymer rubber, which is cross-linked with up to 3% by weight of allyl methacrylate or a mixture thereof with ethylene glycol dimethacrylate and/or polyethylene glycol dimethacrylate and from 90 to 60 parts of a styrene-acrylonitrile copolymer, at least a part of which is grafted on to the said rubber. Examples are given in which n-butyl acrylate and acrylonitrile are copolymerized with allyl methacrylate, alone or together with ethylene glycol dimethacrylate or polyethylene glycol dimethacrylate in aqueous emulsion and subsequently grafted with styrene and acrylonitrile, the resulting latex being co-coagulated with a latex of styrene-acrylonitrile copolymer.
Patent GB-576751-A (GB)
IPC: F02P1/08
Abstract: 576,751. Ignition systems. RATAJSKI, Z.R.S. April 4, 1944, No. 6246. [Class 7 (iv)] A high tension ignition system for a multi cylinder internal-combustion engine comprises two distributers each having a row of contacts D3, D4 and a co-operating rotary distributer arm D1, D2, two transformers H1, G, the secondary windings H2, G2 of which are connected continuously respectively one to each of the two distributer arms, rotary self-contained low-tension impulse generator E generating impulses in a single winding and distributing means operated in timed relation to the impulse generator so that successive impulses from the generator are delivered alternately to the primary windings of the two transformers. As shown, the distributing means comprises two contact breakers J, J1. When the contact breaker J is operated an impulse will pass to the primary winding H1 and when the contact breaker J1 is operated an impulse will pass to the primary winding G1. The timing is so arranged that the contact breakers connect the impulse generator alternately to the primaries of the two transformers and this connection is timed to take place so that successive impulses from the generator pass alternately to the two primary windings. This arranges that whether the impulses are of the same or of opposite sign they are always of the same sign in any one primary winding. The directions of the transformer windings may be varied to alter the sign of the impulses in the secondaries. The impulse generator may be in the form of an ordinary magneto without the high tension winding and supplies impulses independently of the operation of contact breakers. The contact breakers which form the distributing means may be at the generator side of the primary windings. The transformer secondaries may be connected to earth through the primary windings. The distributers are arranged in a single housing and it is stated that the contact breakers and distributers may be arranged as one unit. The transformers may also be included in the unit. A battery may be used to energize the generator at starting. The Provisional Specification describes an arrangement in which there is only one contact breaker and a commutator having two contacts supplies the impulses to the transformer primaries. Specification 573,551 is referred to.
Patent GB-1409218-A (GB)
Title: Electrostatic pinning of polymeric film
IPC: B29C48/08
Filed: 1973-12-13
Abstract: 1409218 Electrostatic pinning of films CELANESE CORP 13 Dec 1973 [14 Dec 1972] 57768/73 Heading B5B [Also in Division H1] A polymeric film, e.g. of P.T.F.E., polyolefin, halogenated polyolefin, vinyl acetate copolymer, vinylidene choride copolymer, polyamide, cellulose ester and ether, styrene copolymer or polycarbonate, or other thermoplastic or thermosetting polymer is formed by extrusion from a hopper through a die 2 and is chilled to a solid film over a rotating drum 4 grounded at 14. A two electrode pinning device 10 improves the contact between the film and the drum surface and comprises a first and a second electrode 12 and 14. The first is positively unidirectionally energized at high voltage from source 6 over conductor 15 and the source is grounded over conductor 16; the electrode being retained by insulant supports 18, 20. An additional A.C. source 8 is connected over conductors 7, 9 to the ends of the electrode 12 to heat it to prevent deposits thereon. A second electrode 14, of greater diameter 1 than the first is adjacent to and interconnected with the electrode 12; the spacing between the latter and drum 4 in a plane normal to the tangent plane of the film being less than the corresponding spacing of electrode 14 (Fig. 3, not shown), while the electrodes may be stretched wires, single or multiple pointed wires, or knife edges. Electrode 12 ionizes ambient gas to electrostatically pin the film to the drum, but electrode 14 does not so ionize it by reason of a lower potential gradient at its surface. In a modification (Fig. 2, not shown) the second electrode is separately insulatedly supported and is energized with positive D.C. and also with A.C. between its ends from separate independent sources; the electrodes being stretched wires, the first being of less diameter than the second and being spaced from the drum similarly to the arrangement of Fig. 1. The electrostatic theory is explained and practical examples are given.
Patent GB-1170420-A (GB)
Title: Improvements in or relating to a Spatial Absorber for Electromagnetic Waves
Inventor: WESCH HANS-LUDWIG
IPC: H01Q17/00
Filed: 1966-12-30
Abstract: 1,170,420. Aerials. ELTRO G.m.b.H. & CO., GES. FUR STRAHLUNGSTECHNIK. 30 Dec., 1966, No. 58453/66. Heading H4A. An electromagnetic wave absorber comprises a plurality of wall elements arranged parallel to the direction of propagation of the wave, and consisting of resin impregnated glass fibre material. The external surfaces of the elements have conductive coatings, the surface resistance of which decreases in the said direction of propagation. The wall elements are disposed adjacent to each other at spacings of less than one-fifth of the longest wavelength to be absorbed. All spaces within or between the elements are filled with a foamed material, such as polyurethane. The wall elements may be flat or tubular (e.g. of circular or hexagonal cross-sections) and the glass fibres may be made up as fabric or matting before application, or they may be wound directly on formers to produce tubes. An absorber may have a dielectric outer covering of thickness less than one-eighth of the minimum wavelength to be absorbed, and including a plurality cf layers of different dielectric constants, to match the impedance of the absorber to that of free space. The conductive coatings of the wall elements may comprise graphite, or carbon black, or a ferrite, or a semi-conductor.
Patent GB-1339574-A (GB)
Title: Anti-skid hydraulic brake control system for wheeled vehicles
IPC: B60T8/58
Filed: 1970-12-09
Abstract: 1339574 Antiskid hydraulic brake control system AISIN SEIKI KK and SHARP CORP 9 Dec 1970 [9 Dec 1969] 58523/70 Heading F2F A vehicular antiskid hydraulic brake control system is responsive both to the braking pressure applied to the vehicle wheels and to the deceleration of the vehicle wheels. As shown in Fig. 2 pressure sensor 103 (or 119) has a variable resistance 103a incorporated in an hydraulic pressure sensor section I of an electrical circuit and a voltage responsive to the hydraulic pressure is applied to a transistor T 4  and after amplification to a transistor T 5  in a comparator section IV: the speed of vehicle rear wheels 122, 123 is measured by A.C. generator 100 in a wheel rotational speed sensor section II and a voltage responsive to vehicle speed is fed to a wheel angular deceleration and acceleration sensor section III to be differentiated, the output then being fed to a transistor T 6  of the comparator section IV and also to a transistor T 8  of a pressure-reducing period setting circuit section V. Transistors T 5  and T 6  constitute a differential amplifier and the differential output between them is amplified and fed to a transistor T 7  in section V, part of the output from which is fed to be stored into a condenser C 3 . In so far as the hydraulic pressure is in proportion to the vehicle deceleration the accumulated voltage in condenser C 3  is a measure of a relative drop of the wheel revolutional speed from the vehicle speed. When the difference between the pressure responsive voltage and the wheel angular deceleration-responsive voltage exceeds a predetermined value transistors T 9 , T 10  become conductive to thereby energize a solenoid SV of a pressure reducer 101 to reduce the hydraulic pressure on the rear wheels 122, 123. This causes the wheel to accelerate and the output from transistor T 7  to diminish correspondingly and as the acceleration increases the voltage in condenser C 3  is discharged sooner. The sensor 103 is shown near the wheel cylinder 120, 121 of the rear wheels 122, 123 but it may alternatively be near the servo assisted master cylinder 110 as seen at 119. The alternator 100 co-operates with the propeller shaft 107. In the embodiment of Fig. 3 the pressure sensor is replaced by a pressure switch SP which operates when the pressure becomes higher than a predetermined value, say 20 kg/cm<SP>2</SP>, and when this switch is closed a transistor T 23  becomes conductive. When the wheel deceleration sensed by a combination of a condenser C 11  and a resistor R 20  exceeds a predetermined value a Schmittcircuit T 24 , T 25  is brought into its working state and a transistor T 26  becomes conductive so as to supply a current through a solenoid SV and actuate the reducer 101.
Patent GB-1329849-A (GB)
Title: Gauge means for observing buttress-to-buttress twist in a turbine vane
IPC: G01B5/207
Filed: 1970-12-11
Abstract: 1329849 Gauging turbine vanes CHROMALLOY AMERICAN CORP 11 Dec 1970 [3 April 1970] 59128/70 Heading G1M A turbine vane comprising two integral end buttresses 10, 11 is tested for twist in an apparatus comprising a base abutments 21, 22, 31, 32, Fig. 1 for locating buttress 10 in a fixed position on the base, abutments 23 and 31 for locating one end of the other buttress 11 and a gauge 25 for measuring the location of a point on buttress 11 away from the located end to give an indication of the twist in the blade. In Fig. 1 gauge 25 engages buttress 11 through a lever 24 pivoted at 36. In Fig. 3 and Fig. 4 (not shown) the probe 42 of the dial gauge 43 engages the buttress directly. In Fig. 5 (not shown) and Fig. 6 the buttress 11 at the gauge end of the apparatus engages a pivoted lever at supports 76, 77, 83, and the angle taken up by the lever, which is a measure of twist in the vane, is indicated by gauge 62. (For Figures see next page)
Patent GB-1333640-A (GB)
Title: Spreader-propeller apparatus
IPC: D06C5/00
Filed: 1971-12-21
Abstract: 1333640 Finishing fabrics SAMCOE HOLDING CORP 21 Dec 1971 [24 Dec 1970] 59473/71 Heading D1S Apparatus for finishing tubular knitted fabric 13 comprises an internal spreader 14 having opposed pairs of propeller rolls 35, 36 having frictional driving contact with external edge drive rolls 23, 24, the working surface area of either the rolls 35, 36 or the rolls 23, 24 having a multi-pointed surface characteristic. The incoming fabric 13 passes sinuously around rollers 12, over the spreader 14 and is discharged between rollers 16, 17. If the fabric 13 is dry, steaming may be associated with the spreading. The rolls 23, 24 are mounted on carriages 20, 21 adjustable along guide rods 18, 19 and are drivable by a splined shaft (not shown). The rolls or pulleys 35, 36 together with idler pulleys 34, 37, 38, are mounted on sections 25, 26 connected by telescopically adjustable rods 27, 28. Belts 39, 40 extend around the pulleys 34, 35 and 36, 38 respectively. The downstream extremity 33 of the spreader is disposed near the bight between the rolls 16, 17. At the upstream end, the spreader is supported on rollers 42 carried by brackets 44 extending from the carriages 20, 21. Upper confining rollers 43 are supported by brackets 45 mounted on the brackets 44. Either by adjustment of the brackets 44 relative to the carriages 20, 21 or by adjustment of the rollers 42 on their brackets 44, or both, the spreader is set so that the downstream end is below the upstream end and the axes of the rolls 35, 36 are slightly skewed relative to the axes of the rolls 23, 24, Fig. 4. Preferably, the rolls 23, 24, 35, 36 are formed of a hard nylon moulded about a metal hub. The rolls 35, 36 have angular recesses therein to receive the belts 39, 40. The rolls 23, 24 have outer portions formed of a hard moulded polyurethane. One or other of the rollers 23, 24 or the rollers 35, 36 may be formed with a multi-pointed surface pattern 50, Fig. 6, comprising pyramid-like projections provided by machining grooves 51, 52 in the roll surface. Plates 29, 30 forming the sections 25, 26 are surfaced with a low friction material, e.g. polytetrafluoroethylene which may be in the form of particles impregnated into an aluminium oxide coating on aluminium plates.
Patent GB-621583-A (GB)
Abstract: 621,583. Arc lamps. SOC. LE CARBONE LORRAINE. Sept. 10, 1946, No. 27129. Convention date, March 22, 1943. [Class 39 (i)] The anode of an arc lamp comprises a tube of carbon with a core containing titanium oxyfluoride, preferably in a proportion of at least 10 per cent by weight. The core may contain carbon and titanium oxyfluoride only, or may also contain other compounds such as rare earth compounds, iron or metals of that group, silicides of iron or analagous metals, thorium fluoride or alkaline earth fluorides.
Patent GB-649869-A (GB)
Abstract: 649,869. Endless track vehicles. FLYNN, T. P. Sept. 2, 1948, No. 23156. [Class 79 (i)] [Also in Group XXI] A bulldozer comprises an endless track vehicle in which the engine unit 31 is supported on frames 13 carrying idler wheels 14, 17, 18 of the endless tracks and these frames are connected to a frame 16. carrying the driving sprockets 15 of the tracks by a shaft 19. All the frames 13, 16 are rigidly secured to the shaft 19.
Patent GB-739866-A (GB)
Abstract: 739,866. Trailers. MANNGARN, R. April 2, 1954, No. 9692/54. Class 108 (1). A trailer has a frame 2 pivotally attached on a forwardly inclined axis X, X to a bracket 7 rotatably secured on a horizontal axis Y to the frame 1 of a towing vehicle. The arrangement is such that the centre of gravity of the trailer and load is raised when negotiating corners. The trailer connection is arranged as a universal joint having one axis forwardly directed.
Patent GB-2015751-A (GB)
Title: Hydrometer for determining density and specific surface of e.g. granulated solids
IPC: G01N9/12
Filed: 1978-06-01
Abstract: A hydrometer has a body 10 graduated to give the volume of a liquid e.g. water, within it. The sample is dropped in the liquid and volume change noted to give the sample's volume. A piston 14 with a graduated stem 13 may be placed in the body with its lower end immersed to a noted graduation 20 to give a fine volume reading on stem 13. Telescoping part 11 is fitted and adjusted so that when the whole is immersed in, e.g., water, a stem 12 alone protrudes and gives the sample's weight on a scale 17. To determine specific surface, the internal liquid is drained and the sample weighed as before. In an alternative arrangement (Fig. 1), the parts 10, 11 are an integral body and closed by a cap. The volume may be varied by an extension fitted between the body and cap. <IMAGE>
Patent GB-2005749-A (GB)
Title: Waste water outlet trap
IPC: E03C1/298
Filed: 1978-08-31
Abstract: A water seal trap for a sink, basin, floor, etc has a dip tube 4 in a container 1<1>-1<2> connected to an outlet pipe 3. Around the tube 4 is an annular valve member 11 seated upon one end of a venturi portion 7 of the container and a projection 12 of a cover 9. The valve opens under negative pressure in the pipe 3 to allow inflow of air, preventing the water seal 6 being sucked away, and also flushing the system with air. Fig. 3 (not shown) illustrates a building wherein air-valved traps in different rooms are connected to a single stack outlet pipe (28) whose upper end has an extractor fan (29) so that air is drawn from the room through their waste traps to provide room ventilation. <IMAGE>
Patent GB-2009614-A (GB)
Title: Solids/Liquid Contactor
IPC: C10G1/04
Filed: 1978-10-30
Abstract: A solids/liquid contactor e.g. for extracting bitumen oil from oil-sands comprises a drum through which a slurry phase and a treatment liquid phase pass, a rotor within the drum including a plurality of axially-spaced discs 13 dividing the drum interior into a series of compartments, the edges of the discs being spaced from the wall of the drum to form an annular passage for the movement of the phases from compartment to compartment, for each of at least some of the compartments, a plurality of receptacles 20 mounted to rotate with the rotor and designed to receive material of one phase and to shower it into the other phase as the rotor turns, and at least one blade 27 which is carried by the rotor, which penetrates into the annular passage, and which is operable to maintain the passage at least partly clear of stationary solids. <IMAGE>
Patent GB-2009502-A (GB)
Title: Field Effect semiconductor device
IPC: H01L29/786
Filed: 1978-11-20
Abstract: A bilateral, two terminal current limiting field effect resistor device is relatively insensitive to both positive and negative input overvoltages and may be utilized to protect the gate oxide capacitance of metal-oxide- semiconductor (MOS) device. The field effect resistor device is fabricated with a n<+>n<->n<+> or p<+>p<->p<+> semiconductive layer 14-16 deposited over an insulating (e.g. sapphire) substrate 12. A dielectric layer 21 covers the n<-> or p<-> region and has gate regions 18 and 20 adjacent the p<+> or n<+> regions respectively. Metalization terminals 24 and 26 extend over a respective one of the p<+> or n<+> regions, over the corresponding gate regions and on to a passivation layer 22 on the central part of the dielectric layer. The device has a linear characteristic for low input voltages and a saturation mode of operation (constant current characteristic) for higher voltages. <IMAGE>
Patent GB-2010125-A (GB)
Title: Process for producing a crinkle finish
IPC: B44C1/20
Filed: 1978-12-18
Abstract: A crinkle embossed surface on a flexible sheet goods substrate is created by means of applying an actinic radiation curable coating which is essentially solvent-free and comprises at least two photopolymerizable ethylenically unsaturated groups per molecule to the flexible sheet substrate and exposing the coated sheet to actinic radiation in the temperature range of 180 DEG F to 250 DEG F for between five seconds and one minute. The product has a clear, durable wearlayer, with stain resistant properties; scratch and scuff resistance as well as wear properties and has a uniform crinkled surface texture. A desired application is in the creation of crinkle embossing on vinyl sheet products such as sheet vinyl floor and wall coverings, table coverings, book covers, coated fabrics for use in upholstery, clothing, and automobile interiors, shoes, handbags, decorative vinyl laminates and the like.
Patent GB-2041196-A (GB)
Title: Use of calcium halide-water as a heat extraction medium for energy recovery from hot rock geothermal systems
IPC: F24J3/08
Filed: 1979-01-29
Abstract: In order to extract energy from hot dry rock geothermal systems, a mixture of water and a calcium halide is used. The fluid mixture is injected into a formation (17) and forced through the formation with simultaneous extraction of heat from the surrounding rocks. The fluid and a fraction of its contained energy are then recovered (23). The calcium halide increases the specific gravity of fluid supplied to the rock formation. As the specific gravity of the fluid is reduced as it is heated, a pressure gradient is produced which aids the fluid circulation. <IMAGE>
Patent GB-2015306-A (GB)
Title: A method and apparatus for receiving radio road-traffic announcements
IPC: G08G1/09
Filed: 1979-02-16
Abstract: The invention relates to a method and apparatus for receiving on a vehicle information about road conditions, from radio announcements signalled by an identifying frequency, by way of a radio receiver equipped with recording and replay means. The recording and replay means assumes its start position when the receiver is switched on or when an identifying frequency is received and then records the announcement when the identifying frequency is received, irrespective of whether the driver is present, and replays it on request, any replay being interrupted on receipt of an identifying frequency and the recording of a new announcement being given priority. The recording and replay means may use a cassette or disc with a capacity which is just adequate for traffic announcements. <IMAGE>
Patent GB-2015007-A (GB)
Title: Polymer compositions for use in preparing impact resistant articles
IPC: C08L77/00
Filed: 1979-02-27
Abstract: Compositions suitable for moulding impact resistant articles comprise a vinyl or vinylidene halide polymer and a minor proportion of an ABS or MBS polymeric impact modifier and a block thermoplastic elastomer wherein the major proportion of the monomer units are residues of a mono-alkenyl- substituted arene compound of the benzene or naphthalene series of 8 to 20 carbon atoms and a conjugated alkadiene hydrocarbon of 4 to 10 carbon atoms; or alternatively comprise a vinyl or vinylidene halide graft polymer on a polyolefin substrate together with a minor proportion of such a block thermoplastic elastomer.
Patent GB-2017622-A (GB)
Title: Apparatus Whereby Flexurally Soft Sheets Supplied Individually can be Deposited in a Specific Position
IPC: B65H31/02
Filed: 1979-03-29
Abstract: An apparatus for depositing individually supplied flexurally sheets (1) comprises a conveyor (2), a pair of drive rollers (10, 11) and a reception table (12). The rollers (10, 11) to push the sheets (1) on to the table (12) and towards a positioning stop (16) at the end thereof. The sheets (1) are reliably engaged by the drive rollers (10, 11) and can be deposited in a specific position on to the reception table (12). The conveyor (2) has laterally spaced supports (6) for the sheets (1), said supports extending in the direction of conveyance. The bottom roller of the pair (10) has a profile in the form of a comb and engages into the gaps between the supports (6). The reception table (12) forms a guide which causes the sheets (1) to be flexed transversely of the direction of conveyance, said guide comprising a guide rail (15) for each sheet edge extending in the direction of conveyance. <IMAGE>