baber/WOPTO huggingface dataset:
Patent GB-1150236-A (GB)
Title: Improvements in Data Processing Systems.
IPC: G06F9/355
Filed: 1966-10-21
Abstract: 1,150,236. Data processors; addressing memories. INTERNATIONAL BUSINESS MACHINES CORP. 21 Oct., 1966 [22 Oct., 1965], No. 47118/66. Headings G4A and G4C. In a stored-programme computer a plurality of memory units have a combined number of addressable storage locations greater than the number of addresses provided by the address portion of a typical instruction word, addressing means being connected to a selected memory unit in accordance with the kind of memory access cycle required and a stored correspondence between memory units and kinds of access cycle. An address is supplied from a register 19 to one of two memories 11, 13 depending on the type of memory access required. The type of memory access, specified by a " cycle control " 29, may be I, A or B, used for accessing instructions, first operands and second operands respectively. Which memory is addressed in each type of access is specified by flip-flops 71, 73, 75 which may be set in accordance with a modifier character present in the programme and preceded therein by a special operation code. (Manual control is also mentioned). The code and character are read into an op. register 55 and A register 53 respectively, the operation code being recognized by a decoder to enable gates 61-66 to respond to the modifier character to set the flip-flops 71, 73, 75. The result of an arithmetic operation may be stored in the memory location from which the second operand came, via a B register 51, the B register also being used to hold temporarily information read from the memories 11, 13. The invention allows the size of a typical instruction to be reduced since the operand address therein is shorter, thereby shortening the time required for serial read-out of an instruction from memory. Addition of extra memory units to the system is also made easier. The system is decsribed as a modification of that in Specification 954,802.
Patent GB-1389118-A (GB)
Title: Interlaced scanning device for a telecine equipment
IPC: H04N3/38
Filed: 1972-10-12
Abstract: 1389118 Television THOMSON-CSF 12 Oct 1972 [15 Oct 1971] 47203/72 Heading H4F In telecine apparatus wherein a flying spot scanner cathode ray tube and an optical system having a split trajectory co-operate in a manner known per se to scan in a double interlaced fashion each frame of a film moving continuously at half the television field rate, and wherein stretching or other longitudinal distortion of the film would disturb such interlace, one or more photo-detectors are arranged to detect identifiable portions of the film and to trigger the vertical (frame) deflection of the scanning tube in response thereto so that accurate interlace is obtained. In a first embodiment, each film frame has a single perforation which is detected in succession by a pair of photo-cells spaced by (n+¢) frame pitches, where n is zero or a small integer, and the signals therefrom are shaped and differentiated before triggering the vertical deflection each time the film has moved by one half of the actual frame pitch. In a second embodiment, each film frame has two perforations and only a single photo-cell is required. For films with greater numbers of perforations, such number are effectively reduced either optically (rotating perforated disc), or by an electronic divider, and either one or two photo-cells are employed as above.
Patent GB-1288390-A (GB)
IPC: F24V30/00
Filed: 1969-09-26
Abstract: 1288390 Heating by chemical action PHILIPS GLOEILAMPENFABRIEKEN NV 26 Sept 1969 [30 Sept 1968] 47438/69 Heading F4X In a system wherein heat evolved from an exothermic reaction between a liquid metal mixture, e.g. Li and Ca, and an oxidant, e.g. SF 6 , is transferred to a working fluid flowing through the pipes 11, 13 of a heater 9 connected to a hot gas engine and wherein inert gas e.g. argon, and oxidant are supplied respectively from reservoirs 25, 21 through supply ducts 24 to the reaction vessel 15, the vessel 15 contains a centrifuge 30 rotatable in the liquid to produce a gas bubble in the region 31 of the inert gas outlet. The gas pressure within the vessel is regulated by means of a lock 37 located in a return duct 36 communicating with the reservoir 25. The centrifuge, which is formed by a plurality of blades, is rotated together with a circulating pump 16 by a shaft 17  around which the gas bubble is formed. The shaft has an axial passage 32 which communicates through radial passages with both the region 31 and a chamber 33. An electromagnetically actuated needle valve 40 closes the gas outlet passage 32 when the centrifuge is not in operation. Plates 34 attached to the shaft 17 serve to separate out liquid particles entrained by the inert gas and a cooled separator 35 removes any vaporized metal and/or reaction product particles from the gas flow. In an alternative embodiment (Fig. 2, not shown) the reaction vessel is surrounded by and communicates with a further vessel (52).
Patent GB-1398368-A (GB)
Title: Double mesa transistor with integral bleeder resistors
IPC: H01L27/07
Filed: 1973-10-11
Abstract: 1398368 Semi-conductor devices GENERAL MOTORS CORP 11 Oct 1973 [24 Oct 1972] 47473/73 Heading H1K A mesa emitter integrated Darlington amplifier with integral bleeder resistors, comprising an input transistor Q 1  and an output transistor Q2, has an input emitter mesa 22 of closed curvilinear form surrounding an input base enhancement region 30, an output emitter mesa 24 spaced from the mesa 22 and an output base enhancement region 38, 38<SP>1</SP> completely surrounding both the mesas 22 and 24. An electrode 40, 40<SP>1</SP> covers both the input emitter mesa 22 and the output base enhancement region 38 and at least partially surrounds the output emitter mesa 24. The semi-conductor wafer 10 comprises a central N-type Si region 12 having on one surface thereof a P-type diffusion layer 18 which has selected lower resistivity P-type regions 20 on its surface, these regions 20 forming the respective base enhancement regions 30, 38 and 38<SP>1</SP>. The P-type layer 18 is further exposed through the output emitter mesa 24 at regions 48, 48<SP>1</SP>, and an electrode 42 covering the mesa 24 and regions 48, 48<SP>1</SP> has a lead 44 bonded thereto. A third mesa 32 is provided in the input base enhancement region 30 over which an electrode 36 is disposed with a lead 34 bonded thereto. The input bleeder resistor R 1  is formed in the P-type diffusion layer 18 under the input emitter mesa 22 between the base portion 30 and the base portion 38. To ensure that the principal current path of this resistor lies between the two emitter mesas 22 and 24 extensions 46, 46<SP>1</SP> of the input emitter mesa 22 are provided. The output bleeder resistor, of lower value than input resistor R 1 , is formed by parallel resistors R 2 , R<SP>1</SP> 2  formed in the P-type layer 18 beneath the output emitter mesa 24 between the apertures 48, 48<SP>1</SP> therein and the base region 38. An etch moat 26, preferably filled with a passivating agent 28, surrounds and is spaced from both mesas 22, 24 and extends down through surface layers 18, 20 into the central region 12. An N<SP>+</SP> diffusion layer 14 is formed on the other surface of the central region 12 with a metallic coating 16 providing the common collector electrode. The arrangement enables the integrated circuit to be made by the usual triple diffusion techniques. The dimensions and resistivities of a specific example are given.
Patent GB-1090627-A (GB)
Title: Improvements in and relating to chain link and chain including said link
IPC: F16G13/06
Filed: 1965-11-10
Abstract: 1,090,627. Chains. COMPAGNIE DES TRANSMISSIONS MECANIQUES SEINEDOUBS-ISERE. Nov. 10, 1965 [Jan. 29, 1965], No. 47677/65. Heading F2Q. A chain link comprises two plates 1, 2 which are connected at one end by a pin 3 riveted at 4, 5 to the plates, and are connected at the other end by a detachable pin 6 having a conical portion 7 which is secured in a conical bore 9 in. the plate 1 by a nut 10 on a screwed end portion 8 of the pin 6. The pin 6 extends freely through a circular aperture 11 in the plate 2. In a modification, rotation of the pin 6 is prevented by a non-circular portion, engaging an aperture 1 la of the same shape in a plate 2a, Fig. 2. In another modification, the plates are connected by two such detachable pins disposed in opposite directions. In a further modification, screwed and conical portions are provided at both ends of the pins.
Patent GB-1460370-A (GB)
Title: Digital f'lter
IPC: H03H17/02
Filed: 1974-11-06
Abstract: 1460370 Active filters INTERNATIONAL BUSINESS MACHINES CORP 6 Nov 1974 [11 Dec 1973] 47939/74 Heading H3U  A digital filter executes the filter function by a computation including computing the value where Yi = a digital value representing a sample of the filtered signal, x i-k =a digital value representing a sample of the input signal, a k = a filter coefficient. The filter comprises: a digital store arranged to store the squares of digital values; adding means for deriving the value (x i-k +a k ); and means for retrieving from the store, in response to each derived value, the corresponding square. The sequenced function Y i  can be derived from the expression the last of these terms being a constant for a given filter. The second term can be expressed as so that this term can be obtained by updating its value at a previous sampling instant i-1. Fig. 1 shows one circuit for deriving the required function. At the end of a preceding sampling period i, input A of adder ADD1 receives x i-1  while input B receives zero. The output from ADD1 is then used to address memory SQROM which provides output x<SP>2</SP> i-1 . Clock T2 is made "1" so that the output from SQ-ROM is inverted by circuit I 1  and sent to input C of adder ADD2. Clock T1 is also made "1" so that the contents of register R1 is added to -x<SP>2</SP> i-1  to provide a partially up dated value. At the start of the current sampling instant x i-n+1  is received and processed with clock T2="1" so that the value +x<SP>2</SP> i-n+1  is added to complete the up dating. The required values of x are then fed in at A and are added to the appropriate coefficients fed in at B to yield the terms (x i-k +a k ) which are similarly processed by the squarer and logic circuits to yield the required output Y i  from register R2. The size of the memory may be reduced by addressing it with only some of the bits of the output from ADD1, Figs. 2a, 2b (not shown). The value Y i  may alternatively be derived from the expression Fig. 3 (not shown).
Patent GB-1308255-A (GB)
Title: Drive means for interval timer
IPC: H01H43/10
Filed: 1971-05-28
Abstract: 1308255 Time switches MALLORY TIMERS Ltd 28 May 1971 [8 June 1970] 48477/72 Divided out of 1308254 Heading H1N The description is identical with that of Specification No. 1,308,254 but the claims are directed to the combination of any intermittent-motion mechanism with the unidirectional clutch comprising a gear carrying a resilient semi-circular pawl engaging a ratchet wheel coaxial with the gear.
Patent GB-1511742-A (GB)
Title: Conductive coated particles and process for their production
IPC: C08K9/00
Filed: 1975-05-09
Abstract: 1511742 Coated particles RAYCHEM CORP 9 May 1975 [10 May 1974] 48593/77 Divided out of 1511741 Headings B2E and B2L An electrically conductive particle having a diameter not exceeding 20Á is coated by applying thereto a solvent-free polymer, thereby rendering coated conductive particles free-flowing an non-agglomerative, but without loss of conductivity when dispersed in a suitable binder. Preferably the particle material is carbon coated using a fluid energy mill wherein a mixture of carbon and polymer particles (or a preblended mix) is fed into a hopper 2, injected into a chamber 6 and prepelled round the chamber by a fluid stream injected through inclined nozzles 10 Repeated particle collisions cause coating, with suitable coated particles settling out through outlets 14 and 16. Suitable polymers are polyethylene, ethylene/propylene copolymer, polypropylene, polyisobutylene, polyvinylidene fluoride, P.T.F.E., polychlorotrifluoroethylene, tetrafluoroethylene/hexafluoropropylene copolymers, P.V.C., vinyl chloride copolymers, polyvinylidene chloride, silicones, polyacrylates, polymethacrylates, polyamides, polyesters, polyimides, polycarbonates, polyethers, polyketones, polystyrene, copolymers of styrene, homo- and co-polymers of vinyl acetate, polysulphones, polyacrylonitrile, polyoxymethylene, polyurethanes, polyamines, polybutadiene, butadiene copolymers, polyisoprene and neoprene.
Patent GB-972412-A (GB)
Title: Improvements relating to weighing scales
IPC: G01G23/32
Filed: 1962-12-27
Abstract: 972,412. Counter scales. MAATSCHAPPIJ VAN BERKEL'S PATENT N.V. Dec. 27, 1962 [Jan. 3, 1962], No. 48620, 2. Heading G1W. A counter weighing scale is provided with a mirror so that a customer may view an otherwise obscured weigh platform and the commodities thereon. The cross-section of the mirror 7 (Fig. 2) may form part of an ellipse one focal point 8 of which is located in front of an aperture at the platform 5 side of the casing 6 and the other focal point 9 corresponding with an aperture at the customers side of the casing. The mirror may be curved in two directions.
Patent GB-1249944-A (GB)
Title: Variable displacement high speed rotary sliding vane pump
IPC: F04C14/20
Filed: 1969-10-06
Abstract: 1,249,944. Rotary pumps. BATTELLE DEVELOPMENT CORP. Oct. 6, 1969 [Oct. 28, 1968], No.48921/69. Heading F1F. To vary pump displacement of a rotary sliding vane pump of twin abutment type operating at very high speeds, e.g., 20, 000 R.P.M. the cam ring 301, Figs. 1, 2, comprises a plurality of thin flexible members 303 and intervening diametrically oppositely disposed pairs of blocks 309, 311 bonded to the flexible members. Intermediate the blocks the flexible members are free to slide with respect to each other. On its face remote from the vane tips each block is formed with a wedge surface with the wedge surfaces on one pair 309, 309, being oppositely directed as compared with the surfaces on the other pair 311, 311. Wedges 343 sliding on the blocks 309 and wedges 347 sliding on the blocks 311 are connected by rods 371 and nuts and washers to a control member 375 having a collar portion 380 slidable with respect to a spindle 381 secured to the pump housing. Each block 309, 311 is urged away from the vane tips by means of a spring 361, spring-abutment 357 and a rod 353. On rotation of a control nut 393 one pair of wedges are moved so that the associated blocks are moved radially inwards against the tension of the spring 361 and the other pair are moved so that the associated blocks move radially outwards under the influence of the springs to alter the once circular cam surface to an elliptical shape to vary the pump displacement from zero to any desired value up to its maximum. A plurality of slots 321 are cut through the flexible member 303 to provide openings for the inlet and discharge of fluid to and from the pumping chambers. Depending on the direction of rotation of the control nut 393 flow through the pump can be in one or other direction. In another embodiment, Fig. 3 (not shown), the blocks are moved hydraulically.
Patent GB-1379089-A (GB)
Title: Cinematographic film reel
IPC: G03C3/00
Filed: 1972-10-25
Abstract: 1379089 Film spools; band closure PLATOGA INDUSTRIAL SA 25 Oct 1972 [24 Aug 1972] 49208/72 Heading B8M A reel for cinematographic film comprises a pair of discs 1, 2 interconnected by a central core, the peripheral edge of each disc being thickened to form an annular rib 3, 7, and a flexible band 4, e.g. of plastics material, having a width substantially equal to the separation of the discs and having extending along one of its faces a pair of spaced channels 5, 6 for engagement with the annular ribs 3, 7. The band 4 is preferably provided at one end with a lug or extension of reduced width which engages the other end of the band to join the ends. The central core of the reel is preferably provided with two rows of radial teeth to engage holes in the film at the start of the wind.
Patent GB-1486324-A (GB)
Title: Electrode system for a cathode-ray tube
IPC: H01J9/18
Filed: 1974-11-14
Abstract: 1486324 Electron focussing systems PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 14 Nov 1974 [17 Nov 1973] 49322/74 Heading H1D In assembly of coaxial electrodes 34-37 of a CRT on a stepwise tapering pin 33, withdrawal of the pin through fourth electrode 37 is facilitated by the smallest internal diameter of the fourth electrode 37 being made up to 10%, preferably 0À2 mm., larger than the largest internal diameter of the third electrode 36. The electrodes may be supported after assembly by spot welded members 38 fused to glass rods 39, the pin being flatted (Fig. 3, not shown) to clear welding distortions. Axial spacers 40, 41 control lengthwise position. The three coplanar guns of a colour tube are constructed together on divergent pins withdrawn separately through the largest electrodes. Both unipotential and bipotential lens systems normally have a pair of equal diameter electrodes, but the effect of 10% difference is insignificant.
Patent GB-1072899-A (GB)
Title: Basic refractories
IPC: C04B35/12
Filed: 1965-11-22
Abstract: A fused refractory consists of at least 60 wt. per cent MgO, at least 15% Cr2O3, less than 4% SiO2, less than 5% Al2O3, less than 6% Fe2O3, and less than 3% CaO, the refractory consisting of small, closely packed, mostly attached crystals of periclase which crystals are characterized by extensive exsolved separate and discrete spinel deposits throughout and the boundary areas between contiguous periclase crystals being characterized by extensive enhedral spinel crystal development forming with the periclase crystals an intergrown network isolating contained silicates into dispersed pockets.  The fused mixture may be crushed and graded to form a brickmaking batch with a temporary binder, e.g. water and lignin solids.
Patent GB-1337660-A (GB)
Title: Process for the production of flame resistant polyurethane foams
IPC: C08G18/80
Filed: 1971-10-26
Abstract: 1337660 Polyurethane foams BAYER AG 26 Oct 1971 [26 Oct 1970] 49600/71 Addition to 1267011 Heading C3R Polyurethane foams are prepared by reacting in the presence of a blowing agent (a) a polyether which contains at least two reactive hydrogen atoms and has a M.W. of 1500 to 10,000 and in which at least 10% of the OH groups present are primary hydroxyl groups and (b) a polyisocyanate solution which is a 1 to 80% solution by weight of a polyisocyanate which comprises at least one isocyanurate group and which has been reacted with a less than equivalent amount of at least one OH-containing compound of M.W. 31 to 10,000, in a polyisocyanate free from isocyanurate groups. The polyisocyanate which comprises isocyanurate groups may also comprise urethane groups before reaction with the OH-containing compound. Preferred OH-containing compounds are bito octa-functional but monofunctional compounds also may be used. In a typical example a mixture of a propylene glycol based polypropylene glycol modified with ethylene oxide, water, endoethylene piperazine, tris - (#- dimethylamino-propyl)- hexahydro - triazine and a polyisocyanate solution consisting of a trimerized 80/20 tolylene diisocyanate mixture reacted with tripropylene glycol and dissolved in 80/20 tolylene diisocyanate reacted to form a foam. The foams may be used as upholstery materials, mattresses, packaging materials, shock absorbing parts in motor ears, foils for backing or for high frequency welding and insulating materials.
Patent GB-1205622-A (GB)
Title: Manufacture of olefines
IPC: C07C1/00
Filed: 1967-11-03
Abstract: 1,205,622. Oxidation catalysts. JAPAN GASOLINE CO. Ltd. 3 Nov., 1967 [10 Nov., 1966], No. 50151/67. Heading B1E. [Also in Division C5] In Example 6, a catalyst comprising manganese and copper on a silica-alumina carrier (13 wt. % Al 2 O 3 ) is prepared by impregnated the carrier with the metal nitrates and calcining.
Patent GB-1446092-A (GB)
Title: Production of road or pavement surfaces
IPC: E01C7/18
Filed: 1973-10-29
Abstract: 1446092 Bituminous composition ALFRED KUNZ & CO 29 Oct 1973 [31 Oct 1972] 50162/73 Heading C3N [Also in Divisions E1- E2] A method of producing a road pavement surface comprises compacting a load carrying layer of mineral grains of mean diameter in the range 2 to 25 mm. having sizes falling with a 3 : 1 grain size range together with a bituminous binder comprising a fibrous stiffening filler and/or an elastomer (rubber or a vinyl polymer), and impregnating substantially the entire voids volume of the compacted layer with a flowable plastics or plastics-cement mortar of high viscosity. The compaction is by rolling and before impregnation the compacted layer has a voids volume in the range 18-22% by volume. The load carrying layer may include small amounts of lime stone flour and/or asbestos. The mortar may comprise by weight 18À5% quartz sand; 18À5% quartz flour, 38% cement, 6% vinyl-ter-polymer and 19% water or 30% epoxy resin + hardening agent, 10% magnesium potassium aluminium silicate active filler, 20% quartz flour and 40% quartz sand.
Patent GB-1414708-A (GB)
Title: Bridging ramp for platforms
IPC: B65G69/28
Filed: 1973-10-29
Abstract: 1414708 Loading dock K ALTEN 29 Oct 1973 [20 Nov 1972] 50213/73 Heading B8E A loading dock bridge plate 1 is hinged at 3 to the platform 4 and is urged to an upright inoperative position shown by a link 11 urged by pre-tensioned spring 15 into contact with an S-shaped curved track 7 of a plate 8 engaged by a roller 9 mounted on a pin 10 at the end of the link. Stops engage under plate 8 to hold the bridge upright while a resilient stop 19 limits the downward movement of the bridge which also increases the tension in the springs 15.
Patent GB-1195147-A (GB)
Title: Reproduction Material for use in Electrophotography
IPC: G03G5/06
Filed: 1968-10-24
Abstract: 1,195,147. Electrophotographic element. RICOH K.K. 24 Oct., 1968 [25 Oct., 1967], No. 50586/68. Heading H1K. An electrophotographic element comprises a support carrying on a surface thereof a photoconductive layer containing at least one merocyanine dye of formula wherein X is either wherein R is an alkyl group having 1 to 5 carbon atoms and m and n are zero or integers. In the specific embodiments the dye is added to a mixture of zinc oxide and silicone resin in toluene, pyridine and methanol and coated on an aluminium plate. Alternatively an alkyd resin and triethylamine may be used in place of the silicone resin and pyridine respectively.
Patent GB-1292049-A (GB)
Title: An agent for protecting and improving soil
IPC: C05F11/00
Filed: 1969-10-15
Abstract: 1292049 Soil improving composition DEUTSCHE GOLD-UND SILBER SCHEIDEANSTALT 15 Oct 1969 [15 Oct 1968 9 June 1969] 50636/69 Heading C1B An agent for protecting and improving soil comprises decomposed extraction residues accumulating during the production of bean coffee and/or artificial coffee powder, iron and a mineral additive which is a finely divided synthetic silica or silicate or a pyrogenic aluminium oxide. The agent may also contain other organic wastes or polymers and/or mineral and/or vegetable pure or spent oils and optionally carbon black, charcoal powder or alkaline earth or alkali metal formates.