baber/WOPTO huggingface dataset:
Patent GB-1536004-A (GB)
Title: Integrated circuit with driver circuit
IPC: G09G3/14
Filed: 1976-12-02
Abstract: 1536004 Voltage multiplying circuit ROCKWELL INTERNATIONAL CORP 2 Dec 1976 [5 March 1976] 50350/76 Heading H2F An integrated circuit voltage doubler forming a power supply circuit for a transistor device Q 1  comprises an inverter of FETs Q 3 , Q 4  fed with clock signals # 1 , # 3+4 , a bootstrap inverter of FETs Q 7 , Q 8 , Q 9 , fed with clock signal # 1 , an inverter and switching circuit of FETs Q 13 , Q 14 , Q 15  also fed with clock signals # 1  and # 3 , and switching FETs Q 5 , Q 6 , Q 10 , Q 11  and Q 12 , the arrangement being such that during a first time interval the inverter of FETs Q 3 , Q 4  and switching FETs Q 5 , Q 6 , Q 12  and Q 13  switch so that storage capacitors C 2  and C 3  charge to a voltage equal to the supply operating voltage V DD  fed to the power supply circuit, then during a second time interval the bootstrap inverter charges the junction 8 between the two storage capacitors C 2  and C 3  to a voltage equal to the supply operating voltage and as there is no discharge path then for the storage capacitors the voltage at the junctions 6 and 7 connected to the opposite sides of capacitors C 2  and C 3  from their common junction 8 becomes equal to twice the supply operating voltage. The switching FETs Q 10 , Q 11  are conducting during this second time interval and thus junction 13 and interface storage capacitor C 5  between the supply circuit and the driver for the transistor device are charged to approximately twice the supply operating voltage. To maintain this doubled voltage at the junction 13 the FETs Q 10  and Q 11  are cut off. The doubled voltage is fed via a switching FET Q 20  to the transistor device Q 1 . To compensate for the threshold drop voltage of switching FETs Q 10 , Q 11 , the switching FET Q 11  is turned on hard by the inverter and switching circuit of FETs Q 13 , Q 14 , Q 15 . To compensate for the threshold drop voltage of switching FET Q 20  it is switched on hard by its control circuit of FETs Q 16 , Q 17 , Q 18  and Q 19 . The transistor device Q 1  is said to be a digit select FET controlling light emitting diodes of a calculator display, or liquid crystal or fluorescent tube devices.
Patent GB-1532250-A (GB)
Title: Light deflector of acousto-optic interaction type
IPC: G02F1/33
Filed: 1975-12-09
Abstract: 1532250 Acousto-optic devices MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 9 Dec 1975 [9 Dec 1974] 50428/75 Heading G2F A light deflector 1, Fig. 5, utilizing the anisotropic Bragg diffraction of light by acoustic waves in an anistropic crystal, comprises an acousto-optic medium 2 having a light incident face 10, a light exit face, and an acoustic wave incident face, and an ultrasonic waver transducer 3 disposed on said acoustic wave incident face, the faces being so arranged that on receiving a light wave normal to said light incident face, the wave vector of an undiffracted light wave is inclined with respect to the <001> axis of the crystal by less than 10 degrees and the wave vector of the acoustic wave is inclined with respect to the <110> axis. Under these conditions the frequency at which rediffraction of the ultrasonic wave occurs lies above the fequency range of the ultrasonic wave in which the frequency differential of the incident angle of light satisfying the diffraction condition becomes zero, Fig. 7. The deflector is thus operable at a high diffraction efficiency over a wide drivable frequency band and avoids the dip in diffraction efficiency of pilot devices owing to rediffraction and which occurs in the region of the midband frequency in said pilot devices. The crystal 2 may consist of TeO 2 , LiNbO 3 , PbMoO 4 , CaMo 4 , or HIO 3  for example. Instead of inclining the crystal surface provided with the transducer 3 from the [110] axis, an intermediate acoustic transmitter medium (14), Fig. 13 (not shown) may be provided. A pair of deflectors may be assembled in series to achieve two-dimensional deflection.
Patent GB-1066804-A (GB)
Title: Improvements relating to closure arrangements for ceramic envelopes
IPC: H01J17/04
Filed: 1963-12-23
Abstract: A glass for sealing a metal cap to a ceramic tube, particularly for use in metal vapour discharge lamps, is preferably a eutectic or near eutectic of alumina and lime or a mixture of alumina, lime, and magnesia in the proportions by weight of 49 : 45 : 6.
Patent GB-1132578-A (GB)
Title: Improvements relating to the manufacture of heat exchangers
IPC: B21D53/04
Filed: 1965-12-01
Abstract: 1,132,578. Heat exchangers. SOC. ANON DES USINES CHAUSSON. 1 Dec., 1965 [2 Dec., 1964], No. 51073/65. Heading F4S. [Also in Division B3] A method of making a heat exchanger, particularly a radiator for a heat engine, from a plurality of identical hollow elements each defining at least two terminal chambers 1 (only one shown) interconnected by channels 2, in which the elements are joined together in a row with adjoining side walls of the corresponding chambers abutting and then perforating the abutting walls by punching to provide com munication between the chambers. The hollo elements are made by soldering together stamings or by soldering together flat sheets over part of their surfaces and inflating the unjoined parts between dies. The sheets are aluminium, which may have an aluminium-silicon coating. The walls are perforated by a punch 6 which has a square conical point. The leading end of the punch 9 has a smaller included angle than the part 8, which has cutting ribs 7 along its corners. Alternatively the faces of the punch may be arcuately concave in transverse cross-section.
Patent GB-1515940-A (GB)
Title: Electric sharpener
IPC: B43L23/02
Filed: 1975-12-12
Abstract: 1515940 Pencil sharpener MABUCHI MOTOR KK 12 Dec 1975 [26 Dec 1974 27 Feb 1975] 51097/75 Heading B6P Insertion of a pencil into sharpener section 6 and an inner case 4 containing an electric motor and planetary gearing rearwards, so that contacts 24 close and the motor is powered by batteries 2 until the pencil is withdrawn. Preferably there are a retaining ring 34 and washer 34 on the end of a protrusion 32 from the inner case, all run through by shaft 21, so that force applied to the sharpener section can be transmitted to the inner case without straining the shaft. The batteries 2 may be nickelcadmium rechargeable cells.
Patent GB-1167111-A (GB)
Title: Mechanism for Gripping and Lifting Loads.
IPC: B66F9/18
Filed: 1967-11-10
Abstract: 1,167,111. Fork-lift truck attachments for lifting rolls of paper. CASCADE CORP. 10 Nov., 1967 [9 June, 1967], No. 51183/67. Heading B8H. One of the arms 14 of a fork-lift truck attachment for lifting rolls of paper is pivoted to a link 84 at 86 and to a rigid arm 70, which slides in a guide 76, at 78, so that rolls of different diameters are gripped by arms 12, 14 at substantially diametrically opposite points. The arm 12 moves vertically up and down in a sleeve 50a. Both arms are moved by hydraulic rams and are provided with pivoted pads 44, 58, restrained by spring members 48, 62 respectively. A motor 20 rotates the arms about a horizontal axis with respect to the lift truck.
Patent GB-1186173-A (GB)
Title: Improvements relating to Machine Tools.
Inventor: WILLIAMSON DAVID THEODORE NELS
IPC: B23B11/00
Filed: 1966-01-28
Abstract: 1,186,173. Lathes. MOLINS MACHINE CO. Ltd. 27 Jan., 1967 [28 Jan., 1966; 3 Feb., 1966], Nos. 51198/69 and 51199/69. Divided out of 1,186,172. Headings B3B, B3C and B3T. A machine tool comprises a holder 28 for a workpiece 29 or a tool, and a rotatable spindle 27 carrying the holder and mounted eccentrically of the axis of rotation of and within a first cylindrical member 36, the member 36 being rotatably mounted eccentrically in a second cylindrical member 34 rotatable about its axis so that by rotation of the two cylindrical members the holder can be moved in a plane normal to the axis of the spindle. Furthermore, the holder is mounted on a sliding member 45 which is in turn mounted on slides 43, 44 which constrain it to move in a linear path normal to the axis of the spindle. In the lathe of Figs. 1 and 4, end tools are carried in magazines or turrets 32, 33 and turning tools in magazines or turrets 30, 31. The chuck 28 is rotatable in hydrostatic bearings in a quill 25 mounted in hydrostatic bearings 38 in the disc 36 mounted similarly in the disc 34 mounted in a plate 26. The quill is prevented from rotating by the keyed plate 45. The members 34, 36 are separately driven or intergeared as shown in Fig. 5 and driven by an hydraulic motor 46 to move the quill in a horizontal plane. The plate 26 is adjustable angularly so that the direction of feed may be altered. The lathe may be numerically controlled.
Patent GB-1115130-A (GB)
Title: Improvements in and relating to electrophoresis
IPC: C08F8/00
Filed: 1966-11-16
Abstract: An electrolyte for electrodeposition of stovable coatings consists of a water-diluted ammonium or amine salt of a formaldehyde reaction product of a copolymer obtained from acrylamide and/or methacrylamide and at least two other ethylenically-unsaturated monomers, one of which is a carboxylic acid, the copolymer having a molecular weight of from 5000 to 15,000.  The copolymer may be obtained by polymerization in a solvent, which is preferably water-miscible, using a mercaptan regulator, e.g. tert.-dodecylmercaptan, and a peroxide or azo-compound as accelerator. Suitable comonomers include acrylic and methacrylic acids and their esters; maleic and fumaric acids and their half-esters and diesters; and styrene and its derivatives, e.g. methyl-styrene and vinyl toluene.  The copolymer is then reacted with formaldehyde, which may be used in alcoholic or aqueous solution, and neutralized with ammonia or an amine, e.g. triethylamine or dimethylethanol-amine.  In the example given the copolymer is produced using by weight:  70 parts butanol, 8 parts acrylic acid, 15 parts acrylamide, 25 parts styrene, 25 parts acrylic acid butyl ester, 27 parts acrylic acid ethyl ester, 1 part di-tert. butyl peroxide, 5 parts tert. dodecylmercaptan.  After methylolation and neutralization, the product is diluted with water and pigmented with TiO2.ALSO:Electro-phororetically produced coatings are produced using as electrolyte a water-diluted ammonium or amine salt of a formaldehyde reaction product of a copolymer obtained from acrylamide and/or methacrylamide and at least two other ethylenically - unsaturated monomers one of which is a carboxylic acid, in which the polymer used has molecular weight of from 5,000 to 15,000.  The copolymer may be formed using as the carboxylic acid, acrylic acid, methacrylic acid, maleic acid, fumaric acid or the half-ester of maleic or fumaric acid; and as the other comonomer acrylic and/or methacrylic acid esters, maleic or fumaric acid di-esters or styrene may be used. The resulting polymer may be reacted with formaldehyde prior to or after neutralization thereof using ammonia; primary, secondary or testiary amines, or alkano-amines, e.g. triethyamine or demethyethanolamine.  After deposition the deposited film is preferably stoved at 120-200 DEG C. The electrolyte may be pigmented with Ti O2.
Patent GB-1478249-A (GB)
Title: Tool for fitting a balancing weight on a spoked wheel
IPC: G01M1/32
Filed: 1975-12-16
Abstract: 1478249 Assembling force fits HOFMANN GmbH Gebr [trading as HOFMANN KG MASCHINENFABRIK Gebr] 16 Dec 1975 [1 March 1975] 54183/75 Heading B3U A hand tool for press fitting a balancing weight on to a spoked wheel has at one end a head which is slotted to embrace a spoke and is provided with an opening 3 for engaging a weight, and an anvil 6 against which a hammer can be applied to produce a driving force on the weight. The force causes the weight (in the form of a slotted bush) to be press fitted on to the cylindrical part of a spoke nipple.
Patent GB-1446326-A (GB)
Title: Direct dyes
IPC: C09B35/35
Filed: 1973-11-07
Abstract: 1446326 Direct trisazo dyes AZIENDE COLORI NAZIONALI AFFINI-ACNA SpA 7 Nov 1973 [10 Nov 1972] 51735/73 Heading C4P Direct dyes diazotizable on fibre are of the general formula in which A and B are different from one another, and each represents the residue of a 1-amino-8- naphthol - 3,6 - disulphonic acid, 1 - amino - 8- naphthol - 4,6 - disulphonic acid, 2 - amino - 8- naphthol - 6 - sulphonic acid or 2 - amino - 5- naphthol-7-sulphonic acid or salts thereof, coupled ortho to the OH group. Individual dyes claimed are and mixtures of these in the weight ratio of 2 : 1, respectively. The dyes are prepared by reacting the tetraazo derivative of 4,4<SP>1</SP>-diaminobenzene with equimolar proportions of two of the sulphonic acids, the relative molar ratio of the tetraazo derivative to the mixture of acids being 1 : 2. The dyes may be used directly or by further diazotization on cotton or leather.
Patent GB-1202810-A (GB)
Title: Method of ionitriding objects made of iron and steel
IPC: C23C8/38
Filed: 1968-11-01
Abstract: 1,202,810. Nitriding metal surfaces. ELEKTROPHYSIKALISCHE ANSTALT BERNHARD BERGHAUS. Nov. 1, 1968 [Nov. 2, 1967], No.51975/68. Heading C7U. The surfaces of iron or steel articles are nitrided in an atmosphere containing a gaseous mixture of nitrogen and hydrogen in the range of ratios of 20:80 to 2:98 parts by volume and at a temperature in the range 480‹ - 570‹ C. under the action of an electrical glow discharge and under a pressure below atmospheric.
Patent GB-1442601-A (GB)
Title: Starter motors
IPC: F02N11/00
Filed: 1972-11-10
Abstract: 1442601 Electric starters for internal combustion engines LUCAS ELECTRICAL Ltd 19 Oct 1973 [10 Nov 1972] 51994/72 Heading F1K A starter for an internal-combustion engine comprises an electric motor 11, a shaft 12 rotatable by the motor and carrying a starter pinion 15, the starter pinion being rotatable with the shaft and being movable axially relative to the shaft between a rest position and an operative position and an electromagnet including an armature 17 coupled to the starter pinion, the armature and the starter pinion being movable axially relative to the shaft, a plurality of electromagnetic poles 21 equi-angularly spaced around the axis of the shaft in a plane at right angles to the axis and spaced apart radially by an amount such that the armature can enter between the poles during its axial movement, the poles being spaced from the armature in the rest position  thereof in the direction of movement of the armature, each pole being shaped so that the surface of each pole presented to the armature in the rest position of the armature includes regions spaced from the armature by different distances in the direction of movement of the armature and equally spaced from the shaft in a radial direction, a member 13 magnetically inter-connecting the poles and an electromagnet winding 20 associated with the poles so that when energized the winding induces a flow of magnetic flux between the poles and the armature within the armature at right angles to its direction of movement and between the poles by way of the member so that the armature is attracted to the poles, the arrangement of the regions of the pole surfaces being chosen to achieve a predetermined attraction between the poles and the armature during the movement of the armature towards the poles. A number of different pole shoes are described with reference to Figs. 4 to 11 (not shown). As shown a winding 20 is associated with each pole. The windings 20 will normally be energized by way of a manually controlled switch which simultaneously or after a short delay energizes the motor fit Alternatively the motor 11 can be energized by a further switch dependent on movement of the armature to a position corresponding to the operative position of the pinion 15. More than two equi-angularly spaced poles may be utilized.
Patent GB-1450809-A (GB)
Title: Stupe composition
IPC: A61K9/70
Filed: 1973-11-09
Abstract: 1450809 Stupe compositions TEIJIN Ltd and HISAMITSU PHARMACEUTICAL CO Inc 9 Nov 1973 [11 Nov 1972] 52219/73 Heading A5B [Also in Division C3] Stupe compositions comprise as active ingredient (with reduced colour) a complex reaction product of a cyclodextrin and menthol and/or methyl salicylate formed by bringing the components together in the presence of water which may be present, e.g. as bonded water, in a or the component(s), or added. The #-form of cyclodextrin is preferred on economic grounds, but α- and γ-cyclodextrins and mixtures may be used. Conventional stupe bases may be incorporated, e.g. kaolin, wax, talc, petroleum jelly, ZnO, boric acid, aluminium silicate and sodium lactate, and the compositions may include tackifiers and other active materials e.g. glycol salicylate, salicylic acid, peppermint oil, camphor, thymol, creosote, taurine, scopolia extract, diphenhydramine, mercurochrome, phellodendron ustum plum extract, xanthoxylum oil, borneol and meprylcaine. The compositions may be coated on to fabric backings in the usual way.
Patent GB-1070303-A (GB)
Title: Production method of semiconductor devices
IPC: H01L23/485
Filed: 1965-12-09
Abstract: 1,070,303. Semi-conductor devices. HITACHI Ltd. Dec. 9, 1965 [Dec. 17, 1964]. No. 52349/65. Heading H1K. Metal is deposited from the vapour phase through a photo-sensitive resist mask on to a semi-conductor in two stages, the second stage at a lower temperature than the first. To bond a deposited metal to a semi-conductor the temperature of deposition must be in the neighbourhood of the metal-semi-conductor eutectic. But to prevent contamination of the surface of the deposited metal by carbonized resist, deposition should occur at a temperature below that at which the resist volatilizes or carbonizes. These considerations define the temperatures of the two stages, which for deposition of aluminium on silicone are 550‹ and 200‹ C. respectively for periods sufficient to deposit 0.2 to 1.0Á in the first stage and up to 0.2Á in the second. The clean deposit of the second stage provides for ready attachment of wire terminals, e.g. of aluminium or gold, which may be attached to it by thermocompression bonding. A complete process, otherwise conventional, for producing a planar transistor is described in the Specification with reference to Fig. 2 (not shown).
Patent GB-1461414-A (GB)
Title: Ventilator
IPC: F24F13/18
Filed: 1973-11-13
Abstract: 1461414 Ventilators CODE DESIGNS Ltd 10 Jan 1975 [13 Nov 1973] 52688/73 Heading F4V [Also in Division F2] A ventilator for association with a duct S in a window frame or sash W comprises an insert T having at least one slot therein and flanges G, H for insertion into the duct S, and a flap F having a beaded edge J by which it is hingeable in a groove in the flange H to control the rate of air flow through the slot(s), wherein the edge J is resiliently deformable and longitudinally bowed up to 1 mm. in two planes perpendicular to one another, and the flap is self-retaining in different angular positions as a result of frictional engagement between a handle R attached to the flap F and an adjacent part of the insert T, such frictional engagement causing deformation of the edge J towards continuous straight line contact with the groove. The handle R projects through an opening in the insert and has a curved surface c in frictional engagement with the upper edge of the opening or the flange G, according to the position of the flap F. The surface c may include three grooves engageable with a projection on the flange G to define fully closed, fully open and intermediate positions of the flap F. A strip L with four openings therealong and a deflector D is mounted in use at the outside end of the duct S, the strip L containing a gauze strip M which acts as a dust filter. The components T, L and D are made of an alloy and the flap F is an extruded aluminium section.
Patent GB-1209592-A (GB)
Title: Improvements in or relating to synthetic polymer
Inventor: SILLS STANLEY ALBERT
IPC: C08K13/02
Filed: 1966-11-25
Abstract: 1,209,592. Stabilized polyamides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 9 Nov.,. 1967 [25 Nov., 1966], No. 52827/66. Heading C3R. Fibre-forming polyamides are stabilized by incorporating 5 to 1000 p. p.m..manganese as an oxide, hydroxide or salt, 5 to 1000 p.p.m. phosphorus as a phosphorous or thiophosphorous acid or ester or amine salt thereof and 100 to 20,000 p.p.m. of a phenol having a secondary or tertiary alkyl or cycloalkyl group in the ortho position. The presence of an organic dicarboxylic acid or an organic carboxylic acid anhydride containing only C, H and O is disclaimed and reference is made to Specification. 978,595 in this. respect, but a monocarboxylic acid or a base may be used as viscosity stabilizer. Pigments, e.g. TiO 2 , dyes, plasticizers and resins may also be included, and the manganese may have been precipitated as a coating of an insoluble compound thereof on the TiO 2  before incorporation in the polyamide. Numerous polyamide-forming materials and stabilizers of each of the three specified types are mentioned including fairly complex compounds also containing other characterizing groups such as alcohol, ester, sulphide, thiotriazane and phosphonate.
Patent GB-1420794-A (GB)
Title: Error-correcting memory with partial write
IPC: G06F12/16
Filed: 1973-11-15
Abstract: 1420794 Checking memories HONEYWELL INFORMATION SYSTEMS Inc 15 Nov 1973 [15 Nov 1972] 52971/73 Heading G4A In a memory system in which words comprising a plurality of data bytes are stored together with error correcting check bits in an array, a replacement of some of the bytes of a word is affected by (1) generating from the old bytes read from memory and the new bytes new check bits, (2) calculating from all the bytes of the old stored data word new check bits for comparison with the stored check bits, (3) correcting the fresh word if the comparison indicates an error and (4) storing the fresh word. The steps are illustrated in the flow chart of Fig. 2. The combining of the old and new bytes is effected under the control of masking signals from a central processing unit. As described the accuracy of a data transfer is first checked by computing the parity of the received data and comparing the computed bits with transmitted parity bits. Step (3) above is effected by an error locator and corrector circuit (50, Fig. 3, not shown) which derives syndrome bits from which the position of an error may be deduced to permit correction of both the data word in OR gates (26) and the computed check bits in a check bit corrector (37). The check bit corrector (Fig. 4, not shown) comprises a comparator (97) which, from the masking signals and a signal representing the deduced position of an error (if any), determines whether a stored byte containing the error is to be retained. If it is not then the contents of the register (95) holding the computer check digits are stored. If however an error correcting byte is to be retained a location decoder (98) receiving the output of the corrector circuit determines the check bits relating to the erroneous bit location and corrects the data in the register (95).
Patent GB-1499803-A (GB)
Title: Cutters
IPC: B26F1/44
Filed: 1973-11-15
Abstract: 1499803 Cutting - out tools K KICHLU 14 Feb 1975 [15 Nov 1973] 53150/73 Heading B4B A cutter for, e.g. cutting out a yarn from a sheet of foam plastics material, comprises a cutting edge in the shape of a pair of helices 18, 20 or groups of helices containing two or more helices having coincident centres, the radial spacing between radially adjacent points on the cutting edge of the helix or group of helices is substantially constant, the pair of helices or the helices in the groups being interconnected such that a strip of substantially constant width can be produced by the cutter from the or each pair of the interconnected helices. The subjectmatter of this application is substantially the same as that in Specification 1,437,341, except that a pair of helices are connected as shown.