baber/WOPTO huggingface dataset:
Patent GB-1164994-A (GB)
Title: Improvements in and relating to Gas-Cushion Vehicles.
Inventor: HUNT ROWLAND DELVILLE
IPC: B60V1/16
Filed: 1965-11-11
Abstract: 1,164,994. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. 1 Nov., 1966 [11 Nov., 1965], No. 47962/65. Heading B7K. An air cushion vehicle having a flexible skirt which wholly or partly encloses an air cushion is provided with at least two longitudinal keel members, whereby the relative extensions of the skirt and the keel(s) may be varied. The body 11 has at each side an inflatable skirt 12 comprising an upper part 21 secured to the body and formed with lower parts 22 constructed in the manner described in Specification 1,043,351. The forward part of the skirt may be formed wholly from elongated parts 22 and the rear part from inter-engaging parts which form, in pairs, enclosed sections in the manner disclosed in Specification 1,109,562. The skirts 12 may be raised and lowered by cables 25 engaging motor-driven cable drums 31. Rigid keels 29, which may be fast with the body or, as shown, retractable vertically by jacks 30 are arranged to be partially immersed in water or to engage a land surface to provide the vehicle with directional stability and/or support. In a further embodiment (Fig. 10, not shown), each skirt comprises an inflatable member formed with ports in its lower wall for the discharge of spaced-apart fluid curtains.
Patent GB-1150149-A (GB)
Title: Lances for Taking Molten Metal Samples
Inventor: FALK RICHARD A
IPC: G01N1/12
Filed: 1967-10-23
Abstract: 1,150,149. Thermocouples. R. A. FALK. 23 Oct., 1967 [25 Oct., 1966; 2 Oct., 1967], No. 48006/67. Heading H1K. [Also in Division C7] A refractory cartridge 11 for sampling molten metal, e.g. a steel melt 13, comprises top and bottom walls 18, 19, and a cylindrical side wall 15 with a sample entry port 16, preferably of diameter #-1 inch, which admits molten metal at bath temperature and retains a quantity of the metal in the cartridge cavity 17 upon withdrawal from the bath. The cartridge 11 is preferably inserted within an insulating, e.g., paper board lance tube 12 for protecting and extending the cartridge into the bath, the tube having an aperture 23 communicating with and wider than the entry port 16. The bottom wall 18 may have an axial passage 190 to form a pin sample for gas analysis; the attached disc sample formed in the cavity 17 is for spectrographic analysis. The entry port 16 may be initially closed by a fusible A1 or steel cap 22 to prevent chilling of the outer edges of the sample. The cartridge may contain inside a steel chill (26, Fig. 6) at the bottom with a refractory annulus (28) spaced above, or a fused quartz tube (34, Fig. 7) mounted between two spaced refractory annuli (36, 38). Alternatively, the cartridge may be provided with a sample shaping insert (49, Fig. 9) of semicircular cross-section. An A1 wire kill (43, 54, Figs. 7, 9) may be provided. The cavity may be divided into a plurality of chambers (62, 64, 66, 68, Fig. 14) each with a sample entry port (70) and provided with different quantities of A1 wire coil kill for determining the optimum kill for deoxidizing the steel. The cartridge may be fitted with a thermo-couple.
Patent GB-1283976-A (GB)
Title: Improved seat belt assembly
IPC: B60R22/35
Filed: 1969-10-01
Abstract: 1283976 Seat belts JIM ROBBINS SEAT BELT CO 1 Oct 1969 [28 Oct 1968] 48358/69 Addition to 1265726 Heading A3V A seat belt retractor comprises a channel shaped support between the side walls of which is journalled a belt holding reel 46, biased by a spring 40 in a belt retracting direction, there being rotatable with the reel a pair of ratchets 56, 58 which are engaged by a locking pawl 80 a predetermined time after belt extension, and which pawl is caused to move to a non- locking position by the reel when the belt is retracted. The pawl is moved to the latter position by being engaged with a follower 90 provided with a pin 92 engaging a spiral track in a cam 72 rotatable with the reel. In said latter position an actuator is primed by depressing a wall thereof such that when the belt is next extended air will bleed into the actuator and after the predetermined time cause the wall to map out thus moving the pawl into engagement with the ratchet and preventing further extension of the belt. An overcentre spring 98 biases the follower away from both its extreme positions. The belt end is retained on reel 46 by a sleeve 52 which engages thereover and the spring 40 biases the reel by being fixed to the support at one end by way of a plastics bush retained on an axle 20 which mounts the reel and fixed at its other end to a further bush 32 rotatable about the axle and locked with the reel. The cam 72 is located with respect to ratchet 58 by tabs engaging apertures 76 in the ratchet with the ratchet located on sleeve 52 by way of tabs 66, 68, 70 engaging slots 60, 62, 64.
Patent GB-1392800-A (GB)
Title: Apparatus for cutting drainage trenches
IPC: E02F5/10
Filed: 1973-10-17
Abstract: 1392800 Trench excavators MACHINEPABRIEK D BARTH & Zn BV 17 Oct 1973 [9 May 1973] 48372/73 Heading E1F To allow of control of the cut depth of a drainage trench at least part of the cutting tool 14 of the apparatus forming the trench is pivotable with respect to the means 3 supporting it from a vehicle about a horizontal axis, e.g. axis 24, adjacent the sharp tip 16 of the cutting tool, which comprises spaced planar side members 17 embracing the support means 3 and an upwardly and rearwardly extending front member 20 spanning the spacing between the similarly inclined leading edges of the side members. The entire tool, or the tip, or the tip less remainder of the tool may be pivoted about said axis. Preferably the support means may be an L-shaped member supported from the vehicle by a parallelogram linkage.
Patent GB-1166465-A (GB)
Title: Process for Obtaining a Composite Metal Article
IPC: B23K20/04
Filed: 1966-10-28
Abstract: 1,166,465. Jointing by rolling; making composite sheets. OLIN MATHIESON CHEMICAL CORP. 28 Oct., 1966 [13 Jan., 1966; 30 March, 1966], No. 48396/66. Headings B3A and B3M. A composite article is obtained by rolling together a metal core, having a recrystallization temperature below 500‹ C., and a metal cladding, having a recrystallization temperature at least 100‹ F. above that of the core metal, the rolling producing a reduction between 40 and 90% and being at a speed of at least 20 ft/sec., so that recrystallization of only the core is produced. The rolling takes place in air, and the core, which may, if desired, be preheated, can be clad on both surfaces. Suitable core materials are commercially pure Cu, Pb, Sn, Zn, Al, and its alloys, while the cladding may be of Cu alloy, Pb alloy, Sn, Ni, Zn, Ti, Fe, Ag, Al, or stainless steel. In an example, a core of 99À9% pure Cu of 0À160 inch gauge was clad on both sides with a 75% Cu 25% Ni alloy of 0À045 inch gauge in air at room temperature. A reduction of 80% was made with the cladding touching the rolls before contacting the core and making an included angle of 12 degrees intersected by the core. The core was 11% cold worked before bonding, resulting in a peel strength for the composite in excess of 90 1b. No interatomic diffusion was present between the core and cladding, but each interface had a bonding area 10% greater than with planar materials.
Patent GB-1399310-A (GB)
Title: Polyurethane composition and its use in colouring textile substrates
IPC: D06P1/52
Filed: 1973-10-17
Abstract: 1399310 Pigment compositions AMERICAN CYANAMID CO 17 Oct 1973 [24 Nov 1972] 48460/73 Heading D1B [Also in Division C3] Textile substates are coloured by applying to the surface thereof a composition comprising a pigment dispersed or emulsified in an aqueous adhesive which is a latex of a polyurethane having pendant carboxyl groups and which also comprises an aminoplast resin and a catalyst for curing the aminoplast. The composition may additionally contain a surfactant and a hand modifying agent, e.g. a siloxane. The polyurethane latex may have a viscosity of 60,000-95,000 cps. and may comprise 30- 50% by wt (solids) of the composition. The aminoplast may be a methylated melamine formaldehyde resin and may comprise (solids) 2-5% by wt of the composition. The treated substrate may be dried by heating, e.g. at 225- 350‹F for 0.5-6.0 minutes. The composition may be applied by printing. The textile material may be carpet comprising non-woven synthetic material.
Patent GB-1511201-A (GB)
Title: Radar
IPC: H03H17/00
Filed: 1976-11-19
Abstract: 1511201 Radar TELEFONAKTIEBOLAGET L M ERICSSON 19 Nov 1976 [24 Nov 1975] 48460/76 Heading H4D In a phase coded pulse compression radar, e.g. one using a 5 element Barker code b) Fig. 2, simple auto correlation compression of the echo yields range side lobes h). To remove these side lobes, the echo is sampled to give a set of digital values X K . Ideally these could be processed using a digital filter having a Z transformed transfer function H(z) being the inverse of the z-transform C(z) of the code. Due to C(z) having zeroes outside the unity circle |z| = 1, the resultant inverse filter must be unstable. To enable the use of stable filters DF1 and DF2, Fig. 3, the set X K  is applied to the first digital filter DF1 with a Z transformed transfer function having its poles corresponding with the zeroes of C(z) which are within the unity circle |z| = 1. The resulting set Y K  of digital values is time reversed Y K  and then applied to the second digital filter DF2 with a Z transformed transfer function having its poles position corresponding with the inverted values of the zeroes of C(z) outside |z| = 1. The set U K  obtained from the second digital filter is then time reversed, U K .
Patent GB-1389350-A (GB)
Title: Integrated attenuation elements
IPC: H01L29/00
Filed: 1972-10-23
Abstract: 1389350 Semiconductor devices SIEMENS AG 23 Oct 1972 [24 Jan 1972] 48669/72 Heading H1K An integrated attentuation circuit comprises a weakly phosphorus doped N-type Si body with two highly boron doped P-type input and output zones 2, 3 on one face and a highly phosphorus dopedN-type zone 9 overlain by electrode 10; a weakly doped N-type zone 8 remaining between zones 2, 3, 9. Zones 2, 3 have contacts 4, 5 and are now aligned (Fig. 1). In a modification (Fig. 2, not shown) an electrode zone is formed from a highly phosphorus-doped N-type region with a contact adjacent to the input zone. In a further modification (Fig. 3, not shown) the electrode zone and its contact are situated on the opposed face of the body adjacent to and separated from the highly phosphorus-doped zone and its overlying electrode 10. In operation (Fig. 4) a HF signal at terminal 40 is capacitance coupled to input zone 2 also resistance coupled at 44 to a control signal source returned to earth, and control zone 3 is resistance coupled at 46 to a further control signal source returned to earth; with capacitance decoupling for HF. Attenuated output appears at 50 choke capacitance coupled to terminal 11. If control voltage at 44 is D.C. or low frequency and positive to earth, the PN-junction between zone 2 and region 8 is biased in pass direction, so that holes diffuse from zone 2 into region 8 and electrons diffuse from zone 9, and the differential resistance between 2 and 8 is lowered, and a zero or negative voltage at terminal 46 blocks the PN junction between 3 and 8. Input signal then passes from 40 through zones 2, 8 to 50 without attenuation. If zero or negative voltage is applied at 44, the PN junction 2, 8 is blocked and a positive voltage applied to 46 biases PN junctions 3, 8 to pass. Holes are injected from zone 3 and electrons from zone 9 into zone 8 to lower the differential resistance of the path 3, 9 and the input signal at 40 only passes through the blocking layer capacitance between 2, 9. Since path 3, 9 is conductive and 3 is decoupled to earth over capacitance 48, the input is shunted to earth and heavily attenuated. Attentuation is continuously variable in response to the control signals. The highly doped N-type region and electrode adjacent the input zone reduce line mismatch to the input terminal by application of negative control voltage thereto. Control current in zone 2 flows away through zone 12 at high attenuation, and is adapted so that the differential resistance between terminals 6 and 14 is equivalent to the surge impedance of the input line to terminal 40. A matching resister may be connected in series with terminal 14 of zone 12 (Fig. 5, not shown). Plural attenuation elements may be integrated in a single semiconductor body and series connected to increase attenuation, and the passive components may be integrated therein.
Patent GB-985960-A (GB)
Title: Electrical socket
IPC: H01R33/22
Filed: 1962-12-28
Abstract: 985,960. Nuts; screw-sockets. UNITED CARR Inc. Dec. 28, 1962 [Dec. 28, 1961], No. 48925/62. Heading F2H. [Also in Division H2] A socket for an electrical component having a screw-threaded base, e.g. a bulb, comprises a channel-shaped member with screw-thread engagement means, such as staggered louvres 42 in walls 22 and 24, and a conductive contact element 30 with a protuberance 40 for engagement with the end contact of the bulb, both being attached to a printed circuit board 10 by extensions which pass through slots such as 12 and 14 in the board and circuit contact elements 18 and 16. In a further embodiment the screwthread engagement means are formed in the bight portion 20 of the channel-shaped member and in the circuit contact element 18, which would be extended under the wall 22 for a short distance, the channel-shaped member being formed in non-conductive material with the bulb-engaging element 30 either spaced from or forming an integral part of the socket. The end portion of the channel-shaped member is formed into a lead element 28 which may slightly overhang the edge of the circuit board or lie in the plane formed by the edge of the board as shown.
Patent GB-1176099-A (GB)
Title: Web Threading Apparatus.
IPC: G06K15/16
Filed: 1968-10-18
Abstract: 1,176,099. Feeding record tapes. INTERNATIONAL BUSINESS MACHINES CORP. 18 Oct., 1968 [15 Dec., 1967], No. 49451/68. Heading G5R. A tape 11 is automatically threaded along a path 14, 16 and the tautening of the tape when it is correctly threaded causes it to block a port 15 connected to an air pressure source 19, the consequent rise in pressure in the port 15 causing a pneumatic switch 18 to initiate a signal indicative of the successful completion of tape-threading. If this signal is not forthcoming within a predetermined time, a timing circuit 20 causes the production of a "threading incomplete" signal which initiates a further attempt at threading. After a predetermined number of failures, a "stop" signal is issued and manual intervention is awaited.
Patent GB-1205747-A (GB)
Title: Processes for the heat treatment of solid carbonaceous fuel
Inventor: MCLAREN JAMES
IPC: C10B49/02
Filed: 1966-11-04
Abstract: 1,205,747. Carbonizing. COAL INDUSTRY (PATENTS) Ltd. 23 Jan., 1968 [4 Nov., 1966], No. 49492/66. Heading C5E. In a process for heat treating solid carbonaceous fuel, e.g. coal, in a carbonizer, a part at least of the volatiles driven off during the heating, with any water vapour, gas, and fine solids, is brought into contact at a high temperature with a flow of cooler solid material (fresh coal) so that volatiles condense on the material, which is then fed to the carbonizer. The carbonizer may be of fluidized bed or dilute phase type, and the volatiles may be passed through two cyclone separators in series to remove coarse material before contacting the fresh coal in a column. A portion of the fresh coal may by-pass the contacting column under the control of a valve responsive to the temperature of the gases leaving the column, and drive means for a conveyer delivering coal to the carbonizer and to the by-pass may be controlled by means responsive to the temperature in the carbonizer or in a cyclone separator following it. The process may be for making char for briquetting to make a smokeless fuel.
Patent GB-1235733-A (GB)
Title: Improvements in and relating to aromatic polyisocyanates
Inventor: SHAW FRED D JR
IPC: C07D251/34
Filed: 1968-10-18
Abstract: 1,235,733. Modified polyisocyanate compositions. E.I. DU PONT DE NEMOURS & CO. 18 Oct., 1968 [19 Oct., 1967 (2)], No. 49629/68. Heading C2C. [Also in Division C3] The invention comprises a mixture based on an aromatic polyisocyanate, characterized by the following features, based on the molecules containing free isocyanato groups, (1) an amine equivalent of 92 to 170, (2) an average isocyanate group functionality of at least 2, and (3) a weight content of 5 to 50% of non-volatile phosgenation by-products and of 1.2 to 18% of isocyanurate radicals contained in aromatic isocyanate trimers of isocyanate group funtionality at least 1.5. Such mixtures may be prepared directly, i.e. by conventional phosgenation of an aromatic polyamine to form a crude polyisocyanate followed by trimerizing until the desired isocyanurate content is achieved or by preparing one or more of the constituents separately followed by mixing in the desired proportions. Suitable catalysts for the trimerization include guanidines, e.g. 1,1,3,3-tetramethyl guanidine and/or isobiguanides, e.g. 1,1,2,2,3,3,4-heptamethylisobiguanide and/or an ethylene imine ring containing compound, e.g. N-ethyl aziridine; the extent of trimerization can be controlled by the addition of acidic materials, e.g. benzoyl chloride. If desired, the isocyanate mixtures of the invention may first be modified by partial reaction with compounds containing two or more active hydrogen atoms, e.g. high molecular weight (500-5000) polyalkylene ether glycols, polyester glycols and/or higher polyols, low molecular weight (below 500) polyols, polyamines and/or water to form urethane and/or urea linkages.
Patent GB-1486277-A (GB)
Title: Pump intake units
IPC: F04D29/70
Filed: 1975-10-31
Abstract: 1486277 Centrifugal pumps WILLIAM R SELWOOD Ltd 31 Oct 1975 [16 Nov 1974] 49712/74 Heading F1C An intake unit for a pump comprises a casing 11 having inlet openings 21 leading into a chamber 20 and outlet openings 13 leading from the chamber to an outlet duct 10, 12 leading to the pump inlet. When the water level in the chamber 20 is low, the outlet openings 13 are closed by valve elements 14 operated by a float 18 which surrounds the duct part 10, so as to prevent air from being drawn into the pump. Each valve element 14 is of flexible sheet material attached at each end by integral studs to the float 18 and the duct part 10 and has a rolling or peeling movement, the openings 13 sloping as shown to achieve gradual opening. If the intake is resting in other than a horizontal position, the float lifts at a corresponding angle. A non-return valve may be provided at the top of the duct part 10 to prevent the level of water in the duct 10, 12 from falling substantially below the level of the inlet eye of the centrifugal pump, so that when the valve 13, 14 is re-opened the pump is rapidly re-primed. The re-priming is assisted by a return flow from the pump outlet to its inlet via a duct containing a restriction or a float valve which closes when the pump is pumping only liquid.
Patent GB-1038049-A (GB)
Title: Improvements in preionizers for use in overvoltage protective devices
IPC: H01T1/20
Filed: 1964-12-07
Abstract: 1,038,049. Surge diverters. GENERAL ELECTRIC CO. Dec. 7, 1964 [Dec. 13, 1963], No. 49784/64. Heading H2H. A surge diverter comprises a pair of gap electrodes 16, 18 in compensation with a parallel connected pre-ionizing device comprising an insulating body 24 of ceramic composition, plastic material or mica, with eletrodes 44, 46 coated on opposite surfaces. A grading resistor 38 is also connected across the electrodes 16, 18. A number of other configurations for the pre-ionizing device are given in the Specification (Figs. 5 and 6, not shown).
Patent GB-1484509-A (GB)
Title: Doctoring device
IPC: G03G15/10
Filed: 1974-11-20
Abstract: 1484509 Temperature sensitive doctoring device XEROX CORP 20 Nov 1974 50314/74 Heading G2H Temperature sensitive doctoring device for doctoring a liquid developer applicator roll 4 in an electrostatographic copying device, wherein the roll after removal of liquid developer from the raised portions thereof is contacted with an imaging surface 18, comprises a set of jaws 8 wherein one of the jaws 10 is stationary and the other is connected by extendable linkages 2, 2a to the doctoring means 7 and to means 3 operated by a cam 5 for repeatedly moving the jaws to a closed position so as to bring the doctor blade 11  into contact with the roll 4, the closure of the jaws 8 being limited by a device 14 movable between the jaws, the position of which is governed by a temperature responsive device e.g. a bi-metallic strip 13, a torque converter (22) or resistor (24), Figs. 3 and 4 (not shown), the movement being such as to decrease the pressure of the blade 11 at lower temperatures. In the device of Fig. 4, the current from the temperature sensitive resistor (24) is directed to a voice coil (25) positioned on a yoke (27) supporting a diaphragm (28) which is connected to interposer (14).
Patent GB-507183-A (GB)
Abstract: 507,183. Microphones. FOUNTAIN, G. R., and SNELL, A. E. C. Dec. 11, 1937, No. 34347. [Class 40 (iv)] A microphone of the variabe resistance type comprising a plurality of granule chambers each containing a submerged movable electrode, operativelyassociated through a driving means with a common diaphragm embodies means for directing the sound waves to impinge on the diaphragm at the points where the driving means are connected tothe diaphragm. The chambers for the granules are formed in a member 5 of heat-conductive material closed by a conical diaphragm 7 clamped by a ring 10 and connected by rods 21 to electrodes 20 immersed in the granules. The outer electrodes are constituted by discs 14, 15 electrically insulated from the member 5 by perforated mica discs 16. A felt ring 17 interposed between the electrode 15 and a plate 15a prevents leakage of the granules through the holes 22. The microphone is mounted in a casing comprising a mouthpiece member 1 and a metal cover 2 provided with fins to increase the radiation of heat. A throat member 11 clamped between the members 1, 5 has a conical portion 12 and passages 13 by which the sound waves are directed to the portion of the diaphragm adjacent the connection of the driving rods 21. The member 1 has a hollow handle 3 which encloses the leads to the microphone and carries a switch 4. The electrical circuit may include a barretter or similar device to limit the consumption of electrical energy.
Patent GB-1318139-A (GB)
Title: Dinitro-1,3-phenylenediamine compounds and herbicidal compositions containing them
IPC: A01N37/48
Filed: 1971-11-02
Abstract: 1318139 Substituted nitrophenylenediamines UNITED STATES BORAX & CHEMICAL CORP 2 Nov 1971 [2 Nov 1970] 50914/71 Heading C2C Substituted nitrophenylenediamine compounds of the general formula in which Z is an alkyl or cyano group of 1-6 carbon atoms, each R 1  which may be the same or different represents a hydrogen atom or an alkyl or alkenyl group and R 2  represents an alkyl or alkenyl group (the terms alkyl and alkenyl include cycloalkyl or alkenyl and halo or C 1-6  alkoxy substituted alkyl or alkenyl) are prepared by aminating a compound of the formula in which X is chlorine or bromine atom with amine(s) of formula R 1 R 1 NH and R 1 R 2 NH, the reaction being carried out in one step when R 1 R 1 NH and R 1 R 2 NH are the same amines, or in two steps when they are different, the amine R 1 R 2 NH being reacted first to provide a product mono-aminated at the 3-position and this product being reacted with the amine R 1 R 1 NH to provide the required di-aminated product. The compounds have herbicidal properties.