baber/WOPTO huggingface dataset:
Patent GB-1326794-A (GB)
Title: Stored charge device
IPC: H01L21/8247
Filed: 1970-08-11
Abstract: 1326794 Charge storage memory devices CALIFORNIA INSTITUTE OF TECHNOLOGY 11 Aug 1970 [11 Aug 1969] 38666/70 Heading H1M In a charge storage memory device a metal film 42 is deposited on an insulant substrate 40 and carries a first insulant film 44 of e.g. the oxide or nitride of the metal on which a metal e.g. Al film 46 is deposited. The latter is buried in an insulant film 48, e.g. of the metal oxide or nitride on which an outer metal electrode 50 is deposited; the insulant films 44, 48, not being identical but differing in substance and barrier energy to exhibit differential conductance in dependence on high fields with the thicker insulant having the smaller energy barrier (Fig. 1). Film 46 introduces a deep energy well trapping a large charge with high capture probability, and high voltage pulses between 42 and 50 add or remove electrons on negative or positive polarities, which electrons are retained due to insulant films 44, 48. The buried layer 46 may consist of a discontinuous layer assisting the rapid introduction of charge. The device operates as a two terminal memory. A random recess memory comprises an array of storage devices connected at the intersections of X wires 68 and Y wires 66 to X and Y access switches 62, 64 associated with a pulse generator 67 and a current detector 69 (Fig. 2) the array being deposited on a single insulant substrate with the lower electrode comprising the Y strip conductors overlain by oxidized or nitrided layers, a circular metal layer at intersections, a second insulant layer oxidized or nitrited thereon, and a strip conductor overlaying the insulant (Fig. 3, not shown). For write-in a pulse is applied of sufficient potential for the electrons to traverse the insulant and enter or leave the energy well formed by the buried metal layer so as to store a negative or positive charge; the pulse being derived from a generator between the appropriate X and Y access switches to affect the device situated at intersection while leaving other devices unaffected. For partially destructive readout either polarity pulse is applicable with lesser amplitude and the resultant current flow sensed by current detector 69 in series with the pulse generator; the flow amplitude being dependent (Fig. 4, not shown) on the polarity and charge previously stored.  For non destructive readout; the array may be scanned by an optical or electron beam respectively effecting internal photoemission over the insulant film barrier light dependent on the stored charge and controlling the photoernission readout current, or sensing the stored charge surface potential for detection as in a scanning electron microscope.
Patent GB-871787-A (GB)
Title: Transistor monostable two-state apparatus
IPC: H03K3/284
Filed: 1957-12-12
Abstract: 871,787. Transistor flip-flop circuits. CANADIAN MINISTER OF NATIONAL DEFENCE. Dec. 12, 1957 [April 29, 1957], No. 38698/57. Class 40(6) A mono-stable circuit comprises two complementary transistors arranged in a circuit with their base and collector electrodes cross-coupled so as to have a stable, non-conducting state in which the two bases are clamped at predetermined voltages and an unstable conducting state in one emitter and one base are clamped at predetermined voltages, the other base being connected to a voltage source through means having a high impedance to surge currents and a low impedance to steady currents. The invention also relates to such circuits employing semiconductor units similar to cross coupled complementary transistors. The Figure shows a monostable flip-flop comprising two transistors 10, 11 of complementary type having their base and collector electrodes cross coupled. In the stable state, both transistors are non-conducting, the emitter and base electrodes of transistor 10 being biased through clamping diodes 24 and 20 so that a reverse voltage is applied across the junction and the emitter base junction of transistor 11 is also provided with a reverse bias through clamping diode 18 and inductor 27. The trailing edge of a negative pulse applied to input terminal 22 will cause transistor 10 to conduct and by regenerative action both transistors become highly conducting, clamping diodes 25 and 26 preventing the transistors from bottoming. The current through inductor 27 from the collector of transistor 10 linearly increases until it draws the whole of the current initially taken by diode 25 whereupon the collector potential of transistor 10 begins to rise. This causes the current through the base emitter junction of transistor 10 to decrease and by regenerative action both transistor return to the original non-conducting condition. In an alternative embodiment (Fig. 2, not shown) the inductor is transferred to the collector lead of transistor 11 and the clamping diode 26 is used to clamp the collector voltage of transistor 10 during the conductive interval. In this embodiment the duration of the unstable conductive period is proportional to the output load current.
Patent GB-1125360-A (GB)
Title: Isoxazole compounds and non-toxic salts thereof
Inventor: KANO HIDEO
IPC: C07D413/06
Filed: 1966-02-25
Abstract: 1,125,360. Isoxazole derivatives. SHIONOGI & CO. Ltd. 25 Feb., 1966, No. 38895/67. Divided out of 1,098,983. Addition to 1,098,983. Heading C2C. Compounds of the Formula (I) (wherein X=O or CH 2 ) and their acid addition and quaternary ammonium salts are prepared by treating a compound of the formula with a metal hydride complex in an inert solvent, optionally followed by salt formation. Compounds (I) and their salts are antipyretic, analgesic, antitussive and anti-inflammatory agents, and may be administered in the form of pharmaceutical preparations containing them together with a diluent or carrier.
Patent GB-1365487-A (GB)
Title: Method and apparatus for manufacturing solid rod from a powdered material which includes a binder therein
IPC: F42B4/30
Filed: 1971-08-19
Abstract: 1365487 Pyrotechnic compositions KILGORE CORP 19 Aug 1971 [24 May 1971] 39004/71 Heading C1D [Also in Divisions B5 and F3] A composition for a sparkler comprises iron or steel powder, an oxidizer including ammonium perchlorate to which may be mixed barium nitrate and other oxidizers, a fuel supporting agent, accelerators, a binder, colorant and combustion rate modifiers. The binder is preferably starch, dextrin, acrylic powder, methylmethacrylate, ethylmethacrylate and butylmethacrylate polymers and copolymers, cellulose acetate, ethyl cellulose, polyvinyl alcohol, polyvinyl chloride, polyvinyl acetate, vegetable glues, animal glues, shellac, red gum and synthetic adhesives.
Patent GB-1518149-A (GB)
Title: Graphic display device
IPC: G09G5/24
Filed: 1975-09-24
Abstract: 1518149 Cathode ray tube displays YOKOGAWA ELECTRIC WORKS Ltd 24 Sept 1975 39090/75 Heading H4T An alphanumeric or graphic display device receives instruction from an external computer 1 and, by scanning a succession of rasters in individual display matrices, displays alphanumeric or graphic patterns on a c.r.t., the device having a pattern generator 4 for storing pattern data in raster form and for generating a series of raster display signals for the display matrices upon receiving a raster designation signal designating the pattern and the individual rasters of the selected pattern to be scanned, the device including pattern shifting means for shifting the pattern display in a direction transverse to the scanning direction, the shifting means including means for modifying the raster designation signal whereby a selected portion of the pattern may be displayed at a shifted position so that a pattern may be displayed over two different matrices (Fig. 4b, not shown) without requiring the pattern generator memory to store extra formation data. Raster modification and shift direction signals are applied to modification circuit 5 which modifies the raster designating signal from the timing circuit 7 according to the modification and shift direction signals and supplies an effective raster designating signal to generator 4. In Fig. 2 (not shown) blinking, colour and pattern address signals from memory,3 are supplied to generator 4. The raster modification circuit 5 includes a register (51), selector (52), adder (53) and raster counter (54) (Fig. 3, not shown), and its operation is described in detail.
Patent GB-364330-A (GB)
Title: An improved electromagnetic friction clutch
IPC: F16D27/11
Filed: 1930-12-29
Abstract: 364,330. Friction clutches. SEEBERGER, F., 7, Ramistrasse, Zurich, Switzerland. Dec. 29, 1930, No. 39102. Convention date, Dec. 27, 1929. [Class 80 (ii).] In a friction clutch engaged by a stationary electromagnet 10, 11, friction members 2, 3, provided with one or more frictionfaced annular conical projections and coacting recesses, are mounted on carriers 1 secured to the driving and driven shafts, one or both friction members being slidable thereon. The members 2, 3 are separated, to an extent limited by stops 12, by springs 9 acting on rings 8, and the air gap 6 is adjusted by an axially displaceable ring 4. The ring 4 is screwed on the part 3 and locked in various positions by a key 5 engaging one of a series of keyways in the ring. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form in which the ring 4 is smooth-bored and secured by screws to a flange on the part 3 with an interposed exchangeable packing-ring. This subject-matter does not appear in the Specification as accepted.
Patent GB-1530080-A (GB)
Title: Production of calcium carbonate
IPC: C01F11/18
Filed: 1977-09-20
Abstract: 1530080 Production of calcium carbonate SHIRAISHI KOGYO KAISHA Ltd 20 Sept 1977 [25 Sept 1976] 39169/77 Calcium carbonate having a particle size of (a) less than 0À1 microns or (b) 0À1-3À0 microns is continuously produced by (i) spraying a suspension of calcium hydroxide having a solids content of (a) 0À1-10% by weight or (b) 10-15% by weight at a temperature of (a) 1-30 C. or (b) 30-80 C. in the form of droplets of diameter 0À2-1À0 mm in countercurrent contact with a gas containing 10-40% volume C0 2  while the gas is passed upwardly through a column at a superficial velocity of 0À02-0À5 m/sec to effect 5-15% carbonation, (ii) spraying the suspension resulting from the first step having a temperature of (a) 1-30 C. or (b) 30-80 C. in the form of droplets having diameter of 1-2 mm in countercurrent contact with a gas containing 10-40% volume C0 2 , said gas being passed upwardly at a superficial velocity of (a) 1À0-3À0 m/sec or (b) 0À02-1À0  m/sec to effect carbonation to 95-98% and (iii) spraying the suspension from the second step having a temperature of (a) 1-30 C. or (b) 30-80 C. in the form of droplets of diameter 1À5-2À0 mm in countercurrent contact with the gas containing 10-40% volume C0 2  on a said gas being passed upwardly at a superficial velocity of 1À5-3À0 m/sec to complete the carbonation.
Patent GB-1206208-A (GB)
Title: Lighting fitting
IPC: F21V17/00
Filed: 1968-08-16
Abstract: 1,206,208. Tubular lamp fittings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 Aug., 1968 [17 Aug., 1967], No. 39298/68. Heading F4R. A fluorescent light fitting comprises a channel shaped body 1 with lampholders, and a lamp cover 2 held in place on the body by two boxshaped hoods 3 slid on to the lampholders at either end of the fitting. Each hood 3 is provided with a longitudinal guide groove 10 on its inner sides which can be slid with a tight fit on to corresponding outwardly projecting guide rails 9 on the body 1, projections being provided on both hoods and body to snap into position and interlock when the hood is in position thus preventing accidental displacement, the hood being of a resilient material such as a synthetic resin. The body 1 is of sheet iron. Tags 15 project from the sides of the channel shaped body to prevent the lamp cover being displaced lengthwise. Resislient W-shaped cable supports 14 serve also as springs to urge the covers and hoods together. Stuffing strips are arranged between the guide rails and grooves and between the cover and hoods to keep dust out of the fitting.
Patent GB-1026205-A (GB)
Title: An apparatus for the continuous catalytic combustion of streams of waste gas
IPC: F01N3/28
Filed: 1963-10-07
Abstract: 1,026,205. Combustion chambers operating under pressure. ERDOLCHEMIE G.m.b.H. Oct. 7, 1963 [Oct. 9, 1962], No. 39430/63. Heading F1L. An apparatus for the catalytic combustion of continuous streams of waste gas which contains hydrocarbons comprises a combustion chamber with a waste gas inlet and a combustion gas outlet, the chamber containing a catalyst bed distributed over the flow cross-section thereof. The combustion chamber is in the form of a steel pressure casing and is provided with an internal, elastic insulation which is resistant to high temperature and prevents loss of heat from the chamber. The combustion chamber is enclosed in spaced relation by a protective jacket which sustains the absolute pressure of the system, the waste gas to be burned flowing through the annular space so formed so as to cool the pressure casing and outer protective jacket. The pressure casing has only to withstand the difference in pressure between that in the annular space and that in the combustion chamber. In Fig. 1 the combustion space 1 is defined by a steel pressure casing 2 which has an internal lining 3 of elastic insulation and contains a catalyst bed 4. A protective jacket 5 is disposed around the pressure casing 2 and defines therewith an annular space 6, the jacket 5 having an external layer of insulation 7. Waste gas containing hydrocarbons is supplied through inlets 8, 9 into the space 6 and thence flows into the combustion space 1 through the opening in the pressure casing 2. The waste gas is ignited as it flows through the catalyst bed and the combustion gases discharge through the outlet 12. In a second embodiment, the waste gas after flowing through the annular space 6 passes to an external intermediate heater before passing into the combustion space 1.
Patent GB-1524202-A (GB)
Title: Internal combustion engine with a secondary combustion chamber
IPC: F02P13/00
Filed: 1975-09-26
Abstract: 1524202 Spark ignition engine combustion chambers TOYOTA JIDOSHA KOGYO KK 26 Sept 1975 [3 July 1975] 39482/75 Heading F1B The electrodes 12a, 12a' of a spark-plug 12  associated with the passage 10 between the main and pre-combustion chambers 6 and 9 are located such that they are at least more directly exposed to gas flow from the chamber 6 to the chamber 9 than from the chamber 9 to the chamber 6. In the embodiment shown the projection 13 into the passage 10 shields the electrodes from flow from the chamber 19. In another embodiment, Figs. 4 to 6 (not shown), the connecting passage 20 is formed by intersecting passages (20a, 20b) and the electrodes are located in an extension of the passage (20a) opening to the chamber 6 beyond the region of intersection of the passages.
Patent GB-1200285-A (GB)
Title: Disk brake
IPC: F16D55/2265
Filed: 1968-08-19
Abstract: 1,200,285. Disc brakes. KELSEY-HAYES CO. 19 Aug., 1968 [18 Aug., 1967], No. 39638/68. Heading F2E. A slidable caliper disc brake is provided with a fixed torque plate 22 having a first portion 24 extending in a direction generally parallel to the plane of rotation of the brake disc 10 and a second portion 38 generally perpendicular to the first portion. Caliper supporting means, in the form of a bracket 142 welded to the second portion 38, is provided with a pin 160 on which slides a caliper housing 42 having a central opening, the second portion 38 of the fixed torque plate 22 being positioned close to the opening, each of the backing plates 64 and 102 being formed with slotted portions 70, 72 for transmitting the braking torque from the brake pads 60, 100 to the second portion 38 of the torque plate 22. Instead of providing a U-shaped bracket 142, the second portion 38 of the torque plate 22 may be formed with an integral U-shaped portion 172 (Fig. 6) having opposed legs 174, 176 through which apertures extend to receive a pin 190 which passes through grommets 186 and 188 which resiliently grip the pin 190.
Patent GB-1461289-A (GB)
Title: Releasable panel fastening arrangement
IPC: F16B21/04
Filed: 1974-09-11
Abstract: 1461289 Stud-and-socket fastenings M LAVOILLOTTE 11 Sept 1974 [18 Sept 1973] 39653/74 Heading E2B Two plates 1, 4 having matching keyholeshaped apertures are held together by inserting, and rotating to the position shown in Fig. 1, a key 11 shaped as shown in Fig. 3. As the key rotates, it rides up on cam surfaces 8a, 9a provided by a blister formation on the plate 4 to enhance the pressure between the plates.
Patent GB-957866-A (GB)
Title: Improvements in electrically operated water heating systems for buildings
IPC: F24H3/00
Filed: 1960-11-18
Abstract: 957,866. Hot water heating systems for buildings. F. J. HURST. Nov. 18, 1960 [Jan. 18, 1960], No. 39728/60. Heading F4U. An electrically operated water heating system for buildings has a heating cylinder 1 from which substantially horizontal outflow pipes 3, 4, 5 leave at different levels and enter a reservoir 2 at corresponding levels, together with a return pipe 6 connecting the lower region of the reservoir with the lower region of cylinder 1. Cylinder 1 contains two or more electric immersion heaters 11, 12 situated at different levels. Above reservoir 2 is an air chamber 7 containing a safety valve 9 responsive to a predetermined excess of air pressure in the air chamber above atmospheric pressure. The outflow pipes which are heat distributing pipes may include radiators or heating panels provided that they remain substantially level, and the return pipe 6 may include a pump to boost circulation.
Patent GB-1202020-A (GB)
Title: Regenerative heat exchange system for a gas turbine engine
IPC: F28D19/04
Filed: 1969-08-08
Abstract: 1,202,020. Thermal regenerators. FORD MOTOR CO. Ltd. 8 Aug., 1969 [29 Aug., 1968], No. 39800/69. Heading F4K. A ceramic, axial-flow, rotatable matrix core 22 in a thermal regenerator has around its periphery an elastomeric pad 24 which transmits driving torque to the core from driving means extending around and contacting the pad. The preferred driving means as shown is a metal ring gear 28, 30, driven by a pinion 32. Alternatively a friction drive may be used. The pad 24 may be made of a foamed silicon rubber and is ieldable in both axial and radial directions to absorb thermally induced stresses between the core and driving member. The pad may be cast in position or may comprise an extruded strip, grooved on one or both faces and stretched around the core, the ring gear being fitted so as to compress the pad. The regenerator is intended for use with a gas turbine engine and, as shown, the rotary core is mounted in a stationary housing consisting of a ceramic inner portion 12 and a metal outer portion 10, 42. The turbine exhaust gases flow to the matrix via a passage 17 and exhaust through a space 46 to atmosphere. Air to be heated passes to the matrix via a passage 13 which extends completely around the core so providing a cool environment for the pad and ring gear. The heated air leaves the matrix through a passage 16. The matrix seals comprise a D-shaped seal 38 in rubbing contact with the matrix end face. The seal 38 may be of metal with a wearing surface (unspecified) on its underside suitable for use on ceramics. A metal foil seal 40 is welded to the top inner edge of seal 38. At the underside of the matrix is a solid ceramic rubbing seal 18. The seal is restrained from circular movement by ribs 20 thereon fitting into corresponding slots in the housing portion 12; or the seal 18 may be integral with the housing portion 12.
Patent GB-904894-A (GB)
Title: 4-chlorosulphonyl-n-sulphinylaniline
Inventor: BIRTWELL STANLEY
IPC: C07C309/86
Filed: 1959-11-24
Abstract: The invention comprises 4-chlorosulphonyl-N-sulphinylaniline and its preparation (1) by heating together sulphanilic acid with thionyl chloride in the presence of not more than 0.33 molar equivalent, based on the sulphanilic acid, of an amide of general formula H.CO.NR1R2, wherein R1 and R2 are alkyl radicals, (2) by heating sulphanilic acid with thionyl chloride in the presence of a compound (possibly of formula I) resulting from the reaction of sulphanilic acid with thionyl chloride in the presence of not more than 0.33 molar equivalent, based on the sulphanilic acid, of H.CO.NR1R2, and (3) by heating sulphanilic acid with thionyl chloride in the presence of not more than 0.33 molar equivalent, based on the sulphanilic acid, of a compound of formula I.  <FORM:0904894/IV (b)/1> Specifications 820,444 and 904,893 are referred to.
Patent GB-1522494-A (GB)
Title: Electronic embossing machine
IPC: B41J7/68
Filed: 1975-10-01
Abstract: 1522494 Embossing ADREMA PITNEY BOWES GmbH 1 Oct 1975 [1 Oct 1974 25 April 1975] 40140/75 Heading G4H An embossing machine comprises a rotatable head 3 carrying N embossing dies 8, a coded drum 6 (or a disc) with electro-optical readers 9 giving a coded signal y representing that one of the dies currently in the operative position, a keyboard 1 for selecting a die and providing a coded signal x representing its address, and comparator logic 10 which determines in which direction the head 3 should be rotated to bring the selected die to the operative position by the shortest route. The logic 10 also detects occurrence of equality between x and y to disconnect the drive and apply the appropriate band brake 19 or 20. Shortest path logic.-In Fig. 2, x and y are compared in comparators 43, 44 giving outputs as indicated, circuit 46 deriving a code representing the absolute difference between x and y, which is compared at 47 with N/2. The head is driven in one direction if x>y and | x-y | <N/2 or x<y and | x-y | >N/2, otherwise in the opposite direction. In another arrangement, Fig. 3 (not shown) y is loaded into a counter (29), incremented by clock pulses until it equals x, the number of clock pulses required being counted (32) and stored (36). y is again loaded into the counter (29), decremented by clock pulses until it equals x, the number of clock pulses required being counted and stored (37). The lower of the two stored counts determines the direction. In a modification, Fig. 4 (not shown) the number of incrementing clock pulses needed to make equality is compared (40) with N/2. Direction may be decided as soon as equality is reached or the number of incrementing clock pulses reaches N/2, whichever occurs sooner. In another modification, Fig. 5 (not shown) the conuter (29) is incremented or decremented according as y is < or > N/2. The dies 8 may be arranged in the head 3 according to their statistical frequency of use.
Patent GB-1489962-A (GB)
Title: Diaphragm arrangement for pressure transducer
IPC: G01L7/08
Filed: 1975-10-02
Abstract: 1489962 Pressure gauges KISTLER INSTRUMENTE AG 2 Oct 1975 [8 Nov 1974] 40247/75 Heading G1L A gauge for very high pressures e.g. in ballistics or in an I.C.E. cylinder, comprises a diaphragm 15 having the form of a deep ground disc, with at least one groove in one face and two in the other, the grooves forming at least one annular ridge 21, 150, 151, the sides of which are normal to the plane of the disc. The side walls of the ridge may be of unequal thickness, Fig. 6 (not shown). They may face or be opposed to the pressure side. The grooves may be filled with metal or plastics (110- 113) Fig. 10 (not shown) and the whole covered with a foil (114). The gauge may use Piezo-electric, Piezo-resistive, ohmic, capacitive or inductive transducing means 6 (not detailed).