baber/WOPTO huggingface dataset:
Patent GB-1187564-A (GB)
Title: Gunn Effect Devices
Inventor: BOTT IAN BERNARD
IPC: H01L47/02
Filed: 1966-02-08
Abstract: 1,187,564. Semi-conductor oscillators. NATIONAL RESEARCH DEVELOPMENT CORP. 21 March, 1967 [8 Feb., 1966], No. 59215/69. Divided out of 1,187,563. Heading H3T. [Also in Division H1] A Gunn effect oscillator comprises a third electrode on the material between the anode and cathode and a circuit between the third electrode and the cathode which produces Gunn effect oscillations at a frequency independent of the cathode-anode distance. In one arrangement (Fig. 4) the third electrode F is capacitively connected to the cathode K so that as a domain D reaches F, the resulting signal transmitted back to K results in the formation of another domain. In another arrangement a constant voltage supply is connected between F and K and a constantcurrent supply between F and anode A.
Patent GB-1456990-A (GB)
Title: Process for preparing copper phthalocyanine pigments of the alpha-modification
IPC: C09B67/54
Filed: 1973-12-21
Abstract: 1456990 Preparing α-copper phthalocyanines HOECHST AG 21 Dec 1973 [22 Dec 1972] 59655/73 Heading C4P α-Copper phthalocyanine is obtained in purer form by treating an optionally substituted e.g. halogenated, copper phthalocyanine with an acid which dissolves impurities contained in. the starting material and converts the copper phthalocyanine into a sulf form, isolating the copper phthalocyanine salt formed from the acid and removing the α-modification therefrom by treatment with water and subjecting the product to mechanical fine division in an aqueous suspension. The salt form may be prepared by dissolving the starting material in sulphuric acid or oleum and diluting the acid strength to 80-86% to precipitate the sulphate or by using 80-86% strength acid directly. The process may be continuous and the mechanical fine division may take place in a vibration, roll or furl mill in presence of a surface active substance. The pigments prepared are used to colour paper, lacquers, plastics, synthetic resins and fibres, P.V.C. and paints and inks.
Patent GB-1249355-A (GB)
Title: Transparent sintered alumina and process for preparing the same
IPC: C04B35/10
Filed: 1968-12-19
Abstract: 1,249,355. Transparent sintered alumina. HITACHI Ltd. 19 Dec., 1968 [27 Dec., 1967; 1 March, 1968], No. 60400/68. Heading C1A. Transparent sintered alumina is prepared by mixing high purity alumina or an aluminium compound which is thermally degradable to high purity alumina with (a) magnesium oxide or a compound which is thermally degradable to magnesium oxide and (b) zinc oxide or cadmium oxide or a compound which is thermally degradable to zinc or cadmium oxide, and moulding and sintering the mixture. Zinc compounds may be employed as additives in amounts of 0À01 to 1% by weight based on the alumina and calculated as zinc oxide. Cadmium compounds may be employed in amounts not exceeding 1% by weight based on the alumina and calculated as cadmium oxide. Magnesium oxide may be added in amounts not exceeding 0À8% by weight, calculated as magnesium oxide, when used in combination with a zinc compound, and not exceeding 1À0% by weight when used with a cadmium compound.
Patent GB-1382998-A (GB)
Title: Process for preparing 1,3,4-thiadiazole-2-thiol compounds
IPC: C07D285/125
Filed: 1971-12-29
Abstract: 1382998 1,3,4-Thiadiazole-2-thiols FUJISAWA PHARMACEUTICAL CO Ltd 29 Dec 1971 [30 Dec 1970] 60589/71 Heading C2C A compound of Formula I wherein R is H or C 1-6  alkyl may be prepared by reacting a salt of a dithiocarbazic acid of formula R-CONHNHCSSH with an inorganic acid, e.g. sulphuric, phosphoric or polyphosphoric acid. The salt of N-formyl or N-(C 1-6  alkanoyl). dithiocarbazic acid is prepared by reacting a compound R-CONHNH 2  with CS 2  in the presence of a basic substance in an organic solvent.
Patent GB-1248140-A (GB)
Title: Improvements in gear levers
Inventor: ZATELLI GUGLIELMO
IPC: B60K20/02
Filed: 1969-12-29
Abstract: 1,248,140. Change-speed control. G. ZATELLI. 29 Dec., 1969 [30 June, 1969], No. 63102/69. Heading F2D. A gear lever hand grip is shaped like an inverted stirrup having a transverse bar 4 profiled or moulded to an undulated form at 4<SP>1</SP> to assist finger grip, an extension 2 having a cylindrical, truncated conical or alternative shaped hole 3 for fitting to the end of a gear lever (not shown) by force-fitting, threading or securing by adhesive. As shown in Fig. 1, the transverse bar 4 is separately formed and retained in place by a screwed rod 5 and disc nuts 6 recessed into the fork body 1, whilst in Fig. 3 the whole grip is formed as an integral one-piece member.
Patent GB-2001109-A (GB)
Title: Improvements in and relating to dry cleaning processes
IPC: D06F43/08
Filed: 1978-07-12
Abstract: A dry cleaning process in which contaminating solvent vapour is removed from a gas stream discharged from a dry cleaning machine and the stream then recycled. As a preliminary to the removal of the solvent vapour the gas is bubbled through an aqueous liquid. In some cases (for example when the solvent is perchloroethylene) the liquid is water and the gas stream is then returned to the machine where it passes over cooling coils so that the solvent vapour condenses and is collected. In other cases (when the solvent is trichloroethane or trichlorethylene) the aqueous liquid is a solution of a catalyst or emulsifying agent, the solvent being recovered by conventional chemical processes. Removal of the solvent is carried out in a recovery tank having inlet means for the gas extending into the bottom of the tank and including a foraminous screen through which gas is bubbled into the liquid in the tank.
Patent GB-2002547-A (GB)
Title: Investigation of astigmatism in electron beam probe instruments
IPC: H01J37/153
Filed: 1978-07-26
Abstract: Astigmatism in a scanning electron microscope (10) is detected by comparing the directional derivatives of intensity for corresponding points in two frames with lens settings above and below focus; by taking the difference between the derivatives for each direction of measurement to eliminate the effect of structural directional features; by summing the differences for all directions to obtain a value (S) which represents the magnitude of astigmatism. The required orientation of the stigmator field can be calculated and the excitation current scanned through a range of values to determine the setting for which S is a minimum. Supplies for the objective lens (14) scanning coils (16) and stigmator coils (18) are arranged for digital control by a small computer (30) which receives a digitised input from an imaging electron collector (22). For a specimen of suitable structure the computer can be programmed for automatic focusing and astigmatism correction or the operator can intervene to apply a manual correction. <IMAGE>
Patent GB-2027547-A (GB)
Title: Device for granulometric analysis of particles in fluids
IPC: G01N15/14
Filed: 1978-08-11
Abstract: A device for granulometric analysis of particles contained in fluids comprises a flow-through chamber of an analyzer, a lighting means 4 arranged outside the chamber, opposite a window 5 which is transparent to light and provided in the wall of the chamber, said lighting means being intended to direct a convergent light beam through said window into said chamber, and a light-sensitive means 13 intended to receive light reflected from particles contained in the fluid under investigation and arranged outside said chamber, opposite a second window provided in the wall of the chamber which second window is shaped as a cylinder 9 whose axis is matched with the optical axis of the lighting means; the walls of the cylinder serve as walls of the chamber. The optical system of the lighting means is such that the point of intersection of the optical axes of the lighting means and the light-sensitive means is beyond the focus of the lighting means, in the direction of the light flux. The solid angle of the convergent light beam is in this range:   <IMAGE>  where n1 is the refractive index of the fluid under investigation. <IMAGE>
Patent GB-2003436-A (GB)
Title: Electrically powered vehicle
IPC: B60K1/04
Filed: 1978-08-23
Abstract: An electrically powered vehicle in which the chassis defines a longitudinally extending cavity 14 for receiving a battery pack 16 inserted from one end of the vehicle. The chassis is provided at the bottom of the cavity with a series of longitudinally-spaced rollers to enable the pack to be slid or rolled horizontally into or out of the cavity, the battery insertion and removal operation being facilitated by a separate trolley 18 which is aligned with the vehicle and which may also have rollers for engaging the battery pack. <IMAGE>
Patent GB-2004682-A (GB)
Title: Coaxial cables
IPC: H01P3/06
Filed: 1978-09-13
Abstract: A water-tight coaxial cable comprises an inner conductor (1) provided at spaced intervals along its length with polyethylene spacing discs (2), and an outer conductor in the form of a copper strip bent to form a tube (3) supported on the peripheries of the discs and a foil (4) of an ethylene-acrylic acid copolymer. The cable is made by passing the components through a die so that the copper strip has the foil lip 5 lying in the gap 6. The joint is made watertight by the action of the die or by heat or both. <IMAGE>
Patent GB-2029712-A (GB)
Title: Craft pattern
IPC: A41H3/06
Filed: 1978-09-16
Abstract: A craft pattern for use in making loose covers, soft toys, woodwork articles etc. and for modelling and the like, the pattern being made of a thin film of flexible, transparent, plastics material such as polyethylene which is suitable for direct application to material from which an article is to be made.
Patent GB-2005572-A (GB)
Title: A drilling tool with a notched shank
IPC: B23B51/00
Filed: 1978-10-12
Abstract: A drilling tool has on its shaft 3 axially spaced notches 24 for selective engagement with a pin 23 attached to a collar 9 to vary its axial position on the tool. The drilling tool is provided at one end with a drill bit 4, the bit having lateral cutting edges. A bearing member 11 has an opening through which the shaft can be passed until the collar 9 engages with the bearing member, the arrangement being such that when the shaft is in a bore in masonry with the collar in engagement with the bearing member, the shaft can be swivelled in relation to the axis of the opening in the bearing member so that the end portion of the masonry bore can be widened out by the drill bit. The notches enable the unit to be used for varying masonry bore depths and the pin is biassed radially inwardly into one of the notches. <IMAGE>
Patent GB-2032540-A (GB)
Title: Friction transmission
IPC: F16H15/38
Filed: 1978-11-01
Abstract: A friction transmission comprises a driving member 101 and a driven member 102 mounted for rotation about a common axis, the members having oppositely facing annular arcuate surfaces 31, 32 and at least one roller 103 contacting said surfaces 31, 32 and supported with its axis intersecting the common axis of said members 101, 102. Lines tangent to the roller 103 and the annular races at the points of contact converge at the intersection of the axis of rotation of the roller 103 and the common axis of the members 101, 102. Hydraulic means 171, 170 apply a force to the roller 103 in the direction of the roller axis proportional to the driving load. The roller 103 and roller carrier 104 are supported by trunnions 135 which are in turn supported by opposed resilient means. Means are provided for cleaning and coating the friction surfaces and a torque limiting clutch prevents slipping of the traction contacts due to transient impulses of excess torque. <IMAGE>
Patent GB-2007197-A (GB)
Title: Singling Sheets for a Stack
IPC: B65H3/50
Filed: 1978-11-02
Abstract: A device for singling from a stack (1) of sheets individual sheets (2, 2') to be fed to a further device, comprises suction means (3) arranged to be vertically displaceable, tiltable about a horizontal axis parallel to the feed direction and horizontally displaceable in the feed direction when so tilted. The suction means (3) is arranged to suckingly engage and thereby upwardly bow opposite lateral regions of the upper sheet (2) of the stack (1). <IMAGE>
Patent GB-2010824-A (GB)
Title: 4-amino-6,7-dialkoxy-2- substituted quinazolines
IPC: A61P9/12
Filed: 1978-11-15
Abstract: 4-amino-6,7-di (lower alkoxy)-2-4- (substituted piperidino) quinazolines wherein the substituent on the piperidino ring has the formula: -O-alk-OR<1> wherein "alk" represents an ethylene group optionally substituted by 1 or 2 lower alkyl groups; and R<1> is hydrogen; lower alkyl; C3-C6 cycloalkyl; or phenyl optionally substituted by one or two groups selected from lower alkyl, lower alkoxy, halogen CF3 and carbamoyl or sulfamoyl optionally substituted by one or two lower alkyl groups; their pharmaceutically- acceptable acid addition salts; processes for their preparation; and pharmaceutical compositions containing them. The compounds are anti- hypertensives.
Patent GB-2034941-A (GB)
Title: Information storage and retrieval system
IPC: G11B27/028
Filed: 1978-11-17
Abstract: Hierarchical microfilm information storage system includes a camera producing microfilm copies of documents. The microfilm is stored in a library and in allocated two address, one in the library and another in a computer store. The computer is programmed to control a microfilm reading scanner and a microfiche writing scanner to produce microfiche copies of selected frames in the library. The microfiche may be updated by direct copy of documents or by overlaying part of microfilm frame with a document. The microfiche is stored in a rapid access microfiche store. The microfiche store contains information selected from the library and grouped together on the basis of subject matter index.
Patent GB-2013209-A (GB)
Title: A Panel Based on a Filled Phenolic Resin and a Method for its Manufacture
IPC: B29C39/10
Filed: 1978-12-18
Abstract: A panel comprises a phenolic resin covering fillers, the phenolic resin being an expanded phenolic resin having a system of closed cells. The panel is made by mixing the fillers with a fluid mixture comprising at least one phenolic resin, a hardening agent, a surface active agent and a pore forming agent chosen such that it has a boiling point less than the polycondensation temperature of the mixture and greater than the ambient temperature during mixing. The panel may be made in a closed mould and the walls of the mould may be covered with a layer of phenolic resin so as to form a covering on the panel.
Patent GB-2011315-A (GB)
Title: Folding Over and Pressing Edges of Fabric Pieces
IPC: A41H33/00
Filed: 1978-12-20
Abstract: A machine for folding over and pressing edge margins of fabric workpieces, e.g. pockets, comprises a pressing table 2 with a liftable and lowerable plate 4 located in a recess 3 therein, a top pressure plate 15 on a pivoted arm 14 and adapted to hold a workpiece against the plate 4 with the edge margins to be folded projecting therefrom, and electrically heatable pressing elements 7 slidable to fold over and press down the projecting edge margins. The elements 7 are guided by lower guides 6 and lateral guides (9). <IMAGE>
Patent GB-2015989-A (GB)
Title: Non-misting glass and process for producing the same
IPC: C03C21/00
Filed: 1979-02-06
Abstract: Subjecting an inorganic glass to a surface treatment with a medium comprising P2O5 or a phosphate, to form a phosphor diffusion layer in the glass surface, causes an excellent dew-preventive effect on the glass surface to be achieved in combination with the various properties inherent to the glass material.
Patent GB-2021496-A (GB)
Title: Motorcycle Front Wheel Suspensions
IPC: B62K25/24
Filed: 1979-05-23
Abstract: A motorcycle (2) has a rigid front fork (4), a frame (22), upper and lower suspension members (6, 8) connected, e.g. by ball joints (20, 26) to the front fork (4) and pivoted to the frame (22), a damper unit (10) connected at its lower end to the lower suspension member (8) or the front fork (4) and at its upper end to the frame (22) or the upper suspension member (6), and at least one steering link member (12) connecting handlebars of the motorcycle (2) to the front fork (4). The members (6, 8) may of triangular form in plan view, and the damper unit may be associated with one or two torsion bars connected between the frame and members (6, 8). <IMAGE>
Patent GB-2026355-A (GB)
Title: Tool storage and transfer in a machine tool
IPC: B23Q3/155
Filed: 1979-07-18
Abstract: A machine tool has a working station 14 and a tool storage device 17 between which the transfer of tools 19 may be carried out during a sequence of machining operations. The machine tool has a slide 8 mounted for reciprocal movement between the station 14 and storage device 17 and carrying a tool transfer arm which transfers tools into and out of the storage device. Transfer movement of tools between the station 14 and storage device 17 is performed by movement of the slide 8 from the working station to adjacent the storage device 17. The transfer arm is swung through 90 DEG  by a fluid cylinder operated rack and pinion. This causes opposite rotation of a tool transfer holder by means of gearing to align the tool with a holder part of the device 17 for subsequent storage. The transfer holder has fluid operated locking plungers, and the storage and machining station holders have fluid operated locking sleeves with balls for selectively retaining the tool 19. The storage device 17 is two tiered so the transfer may involve vertical saddle movement. <IMAGE>
Patent GB-2028546-A (GB)
Title: A device for checking the velocity of a motor vehicle
IPC: G04G21/02
Filed: 1979-07-27
Abstract: A device for checking the velocity of a motor vehicle in relation to existing visibility conditions comprises time measuring means (1) which can be started by a starting switch (2) when a readily distinguished point can be clearly seen on the road in front of the vehicle. As soon as the vehicle passes this point a stopping switch (3) is actuated which stops the time measuring means. The time measuring means (1) thus measures the time interval between the two switch actuations and a calculator (4) calculates the visible distance corresponding to said time interval having regard to the velocity of the vehicle during the interval. This visible distance is compared by the calculator means with the stopping distance corresponding to said velocity. The result of this comparison is indicated by a device (6) which may give a readout of the maximum permissible velocity for the visibility conditions and gives a visible or audible signal if the stopping distance exceeds the visible distance. The value of vehicle velocity may be entered into the calculator manually, or automatically by a coupling to a tachograph. <IMAGE>
Patent GB-2057514-A (GB)
Title: Proofing textiles
IPC: D06M15/263
Filed: 1979-08-28
Abstract: A dry chemical proofing emulsion that includes a cross linking polyacrylic emulsion to give a proofed fabric with improved resistance to crocking.
Patent GB-2049773-A (GB)
Title: An L or T Shaped Weatherstrip Extrusion on Windows and Doors
IPC: E06B7/22
Filed: 1979-10-12
Abstract: An extrusion is added to the meeting faces of windows and doors with their respective frames for weather proofing. The extrusion is to locate in a corresponding groove cut in the opposing face of the meeting member. Another way is the extrusion is to locate in a corresponding U shaped piece of extrusion which is fixed to the face of the meeting member. Another way is the extrusion is to locate in a U shaped piece of extrusion fixed to the side of meeting member. Another way is the L extrusion is to rub on the side of the meeting member. The U shaped piece of extrusion can have a piece of rubber fixed inside it so that when the door or window is shut to the L shaped extrusion which locates in it just cushions on to it therefor making it a better seal still.
Patent GB-2063066-A (GB)
Title: A device for holding articles
IPC: D06F55/00
Filed: 1979-11-20
Abstract: The device comprises mounting means (6) for releasably mounting the device on a support (16), and one or more article-gripping portions (10), the mounting means being such that the device can be pushed onto the support and pulled off of the support by being moved substantially at right angles to the support, and the or each article-gripping portion being adapted to be flexed by an article when the article is pushed into the device whereby the article-gripping portion tries to return to its non-flexed position and so causes the article to be held in the device. <IMAGE>
Patent GB-2067474-A (GB)
Title: Ink transfer cores
IPC: B43K1/00
Filed: 1979-11-22
Abstract: A capillary action ink transfer core of fibrous resin bonded material for a writing or marking instrument is formed from an extruded rod which is extruded with longitudinally extending recesses 1 spaced apart around its periphery. <IMAGE>
Patent GB-2039948-A (GB)
Title: Cell lines
IPC: C12N5/00
Filed: 1980-01-08
Abstract: A rat myeloma cell line has the characteristics of the cells deposited with the Collection Nationale de Cultures de Microorganismes under the number 1-078. This cell line may be fused with immunocyte cells from an animal sensitized to an immunogen to produce hybrid cell lines which provide a source of antibodies to said immunogen.
Patent GB-2045384-A (GB)
Title: Metal pipes for high pressure fluids
IPC: F16L9/02
Filed: 1980-02-05
Abstract: A metal pipe for high pressure fluid particularly a thick walled pipe, treated to produce a residual tensile stress at the external surface thereof and a residual compressive stress at the internal surface, along the entire length of the pipe. This is achieved by heating the pipe at its external surface up to the transformation temperature of the metal and simultaneously or shortly thereafter, cooling the internal surface of the pipe by passing therethrough a cooling medium e.g. water, aqueous ethylene glycol or glycerin, or gas containing butanol, air or liquidized carbonic acid gas. The metal pipe so produced resists cavitation and is remarkably stronger than conventional pipes. The pipe may be used in high pressure fuel injection systems.
Patent GB-2044648-A (GB)
Title: Flask moulding machine with sand slinging and compression
IPC: B22C15/30
Filed: 1980-03-05
Abstract: In a flask moulding machine with sand slinging and compression, in order to give greater ease and simplicity of checking, adjusting and manoeuvring the pattern plates, the plate holders with their pattern plates are supported by a platform rotatable about a vertical axis eccentric to the central axis of the machine. In this manner, by rotating the platform one plate holder can be positioned inside the machine in moulding position and at least a further plate holder becomes simultaneously located outside the machine in a checking, adjustment and replacement position.
Patent GB-2045000-A (GB)
Title: An asymmetric thyristor
IPC: H01L29/74
Filed: 1980-03-19
Abstract: In a thyristor having an n<+>pn<->n<+>p<+> structure, the junction 30 between the n-base 26 and the p<+>-type anode-emitter 31 terminates at the lower surface of the thyristor. The interface 32 between the n<-> and n<+> regions 27,28 of the n-base 26 also terminates at the lower surface. This arrangement provides a high blocking voltage and a low forward voltage drop. A p<+> field- dividing ring 37 is formed in the lower surface of the thyristor n<-> between the interface 32 and the edge. The edge is negatively bevelled such that the angle between the top surface and the edge is acute. The n<+> type cathode emitter 20 is annular and surrounds the gate electrode 44. <IMAGE>