baber/WOPTO huggingface dataset:
Patent GB-934673-A (GB)
Title: Improvements in or relating to the production of semi-conductor materials
IPC: C01B33/035
Filed: 1961-12-15
Abstract: <PICT:0934673/III/1> A process for producing the semi-conductor material silicon, silicon carbide and germanium comprising depositing said material from a compound thereof, by chemical reaction in the gas phase and in the presence of a carrier gas, on to one or more longitudinally extending carrier bodies disposed in a reaction vessel and made of said material, is characterized by heating said carrier bodies prior to reaction whilst passing a stream of carrier gas through said reaction vessel so that the heat emitted by said carrier bodies is sufficient to heat the wall to a minimum temperature of 300 DEG C., the deposition reaction being thereafter carried out with the wall maintained at or above said minimum temperature.  By this means deposition of semi-conductor on the inner wall of the reaction vessel at the beginning of the reaction is avoided, and subsequent deposition is avoided if the ratio of semi-conductor compound to carrier gas does not substantially exceed 0,2. Silicochloroform and silicon tetrachloride may be used for the deposition of silicon, monomethyl-trichlorosilane for deposition of silicon carbide, and germanium tetrachloride for deposition of gemanium.  Hydrogen may be used both as reaction gas and carrier gas, as may other hydrocarbons, for example methane.  The carrier bodies may be heated by passing an electric current therethrough, or by induction heating or radiation heating.  Apparatus illustrated in the Figure comprises reaction cylinder 11, which may be glass or quartz, with metal closure plate 12 on which are mounted carrier rods 10 interconnected by bridge 9 and terminating in holder 13 connected to voltage source 16.  Carrier gas is introduced from cylinder 2 through nozzle 7 and removed through discharge tube 8, after which the carrier rods are heated to about 1200 DEG C. and reaction mixture introduced.  Specifications 853,729 and 861,135 are referred to.
Patent GB-1093837-A (GB)
Title: A floating crane
IPC: B66C23/52
Filed: 1965-10-25
Abstract: 1,093,837. Floating cranes. ORENSTEINKOPPEN UND LUBECKER MASCHINENBAU A.G. Oct. 25, 1965 [Oct. 23, 1964], No. 45157/65. Heading B8B. A floating jib crane comprises buoyant tubular members 1, 1a, Fig. 2 (not shown), which support tubular struts 2, 2a, 2b. A platform 6a carries a winch 5. Stabilizing members 7, 8 are provided, the latter being adjustable in height. A movable rocker beam 9 enables small loads to be lifted and moved horizontally without the crane being warped. The various elements may be releasably connected to facilitate transport. Fig. 4 (not shown), illustrates in plan an embodiment with barrelshaped buoyancy bodies 10. In each embodiment the buoyant members may be increased in number and arranged as the sides of a polygon.
Patent GB-1463326-A (GB)
Title: Alterning the structure of a fabric woven in a travelling wave  shedding loom
IPC: D03D47/26
Filed: 1974-10-18
Abstract: 1463326 Wave shedding looms TSENTRAL N I INST KHLOPCHA TOBUMAZH PROMYSHLENNOSTI 18 Oct 1974 [23 Oct 1973 14 Dec 1973] 45534/74 Heading D1E In a travelling wave shedding loom the weft inserters are driven and beat up performed by discs 8 having slots 7 and beat up members 10 which are arranged in a fixed helix and driven from a tappet shedding mechanism 13 a clutch 25 being provided to alter the phase relationship between the shedding and beat up. The clutch comprises toothed members 26, 27 which can be disengaged and angularly rotated relatively shedding is performed by a series of pairs of healds 14, 15. Variation of the phase relationship can vary the amount of weft inserted into each shed.
Patent GB-1293389-A (GB)
Title: Thermoset water-in-oil emulsions
IPC: C08G63/54
Filed: 1969-09-16
Abstract: 1293389 Water-in-oil emulsions ASHLAND OIL Inc 16 Sept 1969 [16 Sept 1968] 45674/69 Headings C3P and C3R A stable water-in-oil emulsion is prepared by emulsifying water and a mixture of: (a) an ethylenically unsaturated polyester having a mean molecular weight of 1800 to 10,000; (b) a copolymerizable solvent for the polyester, in which the weight ratio of polyester to solvent is from 10 : 1 to 1 : 10; (c) an organic peroxide catalyst; and (d) a cobalt salt soluble in the oil of the water-in-oil emulsion and an aromatic tertiary amine as accelerators. In the examples polyesters of the stated molecular weight are prepared from maleic anhydride, phthalic anhydride, propylene glycol, isophthalic acid, diethylene glycol, tetrachlorophthalic anhydride, and ethylene glycol and styrene (containing hydroquinone) optionally using toluene diisocyanate, 1,4-butylene diepoxide, adipoyl chloride phenyl isocyanate and phosgene as coupling agents. These polyesters are emulsified with water, cobalt octoate, dimethylaniline, methyl ethylketone peroxide and monotertiary butyl hydroquinone and cured.
Patent GB-1360150-A (GB)
Title: Transfer element
IPC: B41J31/14
Filed: 1972-10-06
Abstract: 1360150 Transfer element INTERNATIONAL BUSINESS MACHINES CORP 6 Oct 1972 [1 Nov 1971] 46156/72 Heading D2B A transfer element comprises an ink transfer layer supported on a substrate comprising a water-soluble component in an amount sufficient to ensure destruction of the element when the latter is immersed in water. The substrate may be made from, or include, a water-soluble film-forming polymer such as polyethylene oxide, polyvinyl alcohol, methyl cellulose, polyvinyl pyrrolidone, or an anionic or cationic polyelectrolyte. Composite substrates may also include polyethylene, polypropylene, nylon, polyvinyl acetate or polyvinyl chloride. The element may be in the form of a typewriter ribbon or carbon paper.
Patent GB-1483620-A (GB)
Title: Dispenser package and method of making the same
IPC: B65D83/08
Filed: 1974-10-25
Abstract: 1483620 Dispensing cartons ST REGIS PAPER CO 25 Oct 1974 [14 Dec 1973] 46384/74 Heading B8P A package for dispensing, e.g. plastics film 12 from a roll comprises a carton 11 with an exit opening for the film 12 and a ribbon 38 of abrasive particles, e.g. crushed flint, adhered to a wall 21 of-the carton 11 to define a cutting edge for severing portions of the film 12. The abrasive is preferably applied to carton blanks (17), Fig. 1 (not shown), by providing a strip of glue on the blanks (17) and applying the particles to the glued area, or a strip of preformed abrasive sheet, e.g. sandpaper, may alternatively be applied. The carton 11 includes a tear-off extension 28 which protects the abrasive ribbon during shipping, &c.
Patent GB-1214080-A (GB)
Title: Apparatus for producing rectangular pockets
Inventor: LAPERCHE PIERRE
IPC: B31B23/00
Filed: 1968-10-03
Abstract: 1,214,080. Making bags &c. SOC. INDUSTRIELLE DES NOUVELLES TECHNIQUES RADIOELECTRIQUES ET DE L'ELECTRONIQUE FRANCAISE. 3 Oct., 1968 [3 Oct., 1967], No. 47053/68. Heading B5D. [Also in Divisions B6 and B8] In making rectangular pockets (Fig. 1) having a closed longitudinal edge 2 and at least one closed transverse edge 3, at least one notch 4 cut out in a free longitudinal edge and at least one rounded corner 5, a continuous web of synthetic plastics material 1 is taken from a reel 8, folded longitudinally over a prismatic core 10, past a first punch 14 which punches a notch in one layer only of the folded web and thence to welding head 20 to produce a transverse seam across the folded web, then to a cutting device 21 which cuts across the folded web adjacent to the seam to cut off a pocket and finally to a second punch 22 which produces the rounded corner. The operations are performed successively on succeeding pocket lengths, the web being held stationary for each operation. The web is traversed through the machine by a reciprocating carriage 15 having clamps 15c, 15d which clamp the web against an endless belt 26 during the forwarding motion of the carriage. After forwarding the clamps 15c, 15d are released and the web is held by fixed clamps 18, 18<SP>1</SP> during which the various operations are carried out on the succeeding pocket lengths and the return movement of the carriage 15 takes place. The punches, clamps and welding head are operated by suitable hydraulic jacks and the length of the pockets produced may be adjusted between limits by adjusting the length of the forwarding movement of the carriage, the distance between the fixed clamps and the position of the cutter and the second punch.
Patent GB-1582080-A (GB)
Title: Trousers hanger
IPC: B29C45/14
Filed: 1977-11-15
Abstract: The trouser hanger comprises two bars (1, 1') each with a wire piece (5) shaped approximately to an M and connected to the wire piece (5') of the other bar by means of two hinge blocks (8, 8'). The hanger also has a hanging and locking means (11) which hinges on the central portion of one wire piece and engages, when the trouser hanger is closed, around the central portion of the other wire piece in order to keep the two bars held tightly together. Relief parts (10, 10') on a bar (9) come into contact with the wire pieces to prevent them from sliding tangentially over each other in the closed configuration. The method produces, in a single moulding operation, a relatively inexpensive trouser hanger that provides a constant pressure when closed in use. <IMAGE>
Patent GB-1067496-A (GB)
Title: The treatment of textile fibres
IPC: D06M11/05
Filed: 1963-12-03
Abstract: Keratin and cellulose textile fibres are reacted with one or more ethylenic compounds under free radical initiating conditions in a liquid medium, the weight ratio of liquid to fibres being maintained at less than 20/1.  Ethylenic compounds specified are monocarboxylic and polycarboxylic acids and their esters, amides, nitriles and anhydrides, styrene and its derivatives, vinyl and vinylidene halides, esters of unsaturated alcohols, vinyl ketones and vinyl heterocyclic compounds.  Free radical initiating conditions may be provided by peroxides, redox systems and azo compounds.  The examples describe reacting wool and cotton fibres with acrylonitrile in an aqueous medium containing ferric nitrate, hydrogen peroxide and sulphuric acid.
Patent GB-1207689-A (GB)
Title: Devices for perforating paper tape
Inventor: WILLIAMS RICHARD HUGH
IPC: B23K26/08
Filed: 1967-10-23
Abstract: 1,207,689. Perforating by burning. R. H. WILLIAMS. 22 Jan., 1969 [23 Oct., 1967], No. 48150/67. Heading B4B. [Also in Division H1] A device for forming holes in a paper tape in response to electrical signals fed to the device wherein the holes are made by means of a plurality of laser light generators 2 which are triggered into operation in accordance with the signals fed to the device. The tape is moved by means of an electric motor and drive roller mechanism past a row of laser light generators 2 eg. gas laser devices, which may be disposed adjacent the tape or be spaced from the tape and the laser light directed on to the tape by appropriate laser light-directing means.
Patent GB-1025528-A (GB)
Title: Probabilistic logic character recognition
IPC: G06K9/64
Filed: 1962-12-20
Abstract: 1,025,528. Automatic character reading. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 20, 1962 [Dec. 22, 1961], No. 48174/62. Heading G4R. In a character reader the character is sensed to obtain a stored array of binary signals representing the character, there being, for each possible character, a network of resistors connected to the positions of the storage array weighted according to the probabilities of the occurrence of either of the two conditions. The probabilities are determined by trials and may be represented as in Fig. 3a for a simplified array. The figures indicate the probabilities that a " 1 " will occur in the corresponding position when a character "0" is sensed. Resistors weighted according to the logarithm of these probabilities are connected to the outputs of the storage triggers as shown in Fig. 2 and the currents are summed in a device 29. There is a resistor network for each character and the lowest signal is determined in a comparator 36 to identify the character. In the apparatus of Fig. 1 a magnetic character 11 is passed first under an A.C. magnetizing head 14 and then under sensing heads 15. The signals are sampled to obtain an array of signals such as are shown in Fig. 3c for character " 0 " or Fig. 3d for character "1". These are stored on triggers TA1-TC3, Fig. 2, and connections from the " 1 " and "0" outputs taken to resistors arranged in groups C1 (for character "1"), C0 (for character "0") and so on. The weighting of the resistors, being in accordance with the logarithm of the probability that a " 1 " or " 0 " will be produced in that position by the scanning of a reference character, the output of the summing device 29, 30 represents the product, that is the probability that the whole pattern of signals would result on scanning the corresponding reference character. These signals are compared to find the smallest current and this is compared with a predetermined small current to test the degree of match obtained. If the smallest current is sufficiently smaller than the next smallest and smaller than the predetermined current a character indicating signal is given and a trigger set in character store 37.
Patent GB-1441635-A (GB)
Title: Multiplier circuits
IPC: G06F7/53
Filed: 1973-10-16
Abstract: 1441635 Multipliers AERONUTROVIC FORD CORP 16 Oct 1973 [16 Oct 1972] 48212/73 Heading G4A A binary multiplier (Fig. 6) receiving at input terminals 620, 623; 621, 624; 622, 625; respective bits of the multiplier and multiplicand includes registers, partial product generators and adders so arranged that at any time all the data relating to a multiplier and multiplicand pair is held in one row of the circuitry of Fig. 6. This enables the multiplier to receive in successive time intervals successive pairs of digits for multiplication and consequently to speed up the operation. As described the digits are received serially and fed out serially at terminals 626-630 with any carry from adder 615 providing the highest order bit but parallel data may be processed by including additional registers before register 649, 653; 636, 631 and parallel data may be derived by including additional registers in the outputs. The clock pulse generator 670 provides clock signals to all the circuit blocks which preferably comprise transistor transistor logic but diode transistor logic, resistor transistor logic and MOS integrated circuits or valve circuitry may be used. The circuitry may be modified to accommodate negative numbers (Fig. 7, not shown) by replacing some of the registers by inverting shift registers.
Patent GB-1204749-A (GB)
Title: Electrophotographic transfer process
IPC: G03G13/16
Filed: 1968-10-14
Abstract: 1,204,749. Electro-photography. XEROX CORP. Oct.14, 1968 [Oct.17, 1967], No.48544/68. Heading G2H. In the electro-photographic process of Specification 1,150, 381 which comprises exposing a cohesively weak, electrically photo-sensitive layer sandwiched between two members across which an electric field is applied and then separating the two members so that the unexposed areas of the layer adhere to one member and the exposed areas adhere to the other member, the photo-sensitive layer is rendered cohesively weak with an "activator" (which may partially dissolve or swell the layer), said activator containing a plastics material which strengthens the images formed and enables them to be polished to improve their colour rendering. The activator may comprise a solution or dispersion of the plastics material in an insulating liquid or low m.pt. solid.
Patent GB-1517226-A (GB)
Title: Power regulator energised by unregulated dc
IPC: G05F5/00
Filed: 1975-11-26
Abstract: 1517226 Automatic voltage regulation HEWLETT-PACKARD CO 26 Nov 1975 [4 April 1975] 48600/75 Heading G3X A circuit for providing an output signal with a constant RMS value includes an oscillator coupled to a charge storage device producing a signal dependent on the magnitude of an unregulated DC voltage supplied to the oscillator. The latter signal is compared with a reference voltage to form the output signal as a function of both the signal from the charge storage device and the unregulated voltage. As shown in Fig. 4, a circuit for supplying a regulated RMS voltage to the resistors of a thin film thermal printer includes an oscillator stage 41, comparator stage 43 and Zener diode reference voltage stage 44. Each stage receives as input an unregulated DC voltage V B . The oscillator 41 produces an output 51, Fig. 5, which is inverted by an amplifier 420 to form a signal 52 which periodically discharges a capacitor 432 charged by the voltage V B . An exponential signal 53, 55, dependent on the voltage VB, is thus fed to an input A of a comparator amplifier 430. A reference voltage V ref , predetermined in accordance with the magnitude of the desired RMS output voltage V o , is supplied to the other terminal B of the amplifier 430, the output of which is a chopped D.C. signal 54, 56 having an RMS voltage substantially independent of the supply voltage V B , since the exponential waveform closely approximates an inverse square relationship over the necessary input voltage range.
Patent GB-1170090-A (GB)
Title: An improved piston pump.
Inventor: CARDILLO JOSEPH SAMUEL
IPC: F04B1/053
Filed: 1967-10-27
Abstract: 1,170,090. Reciprocating pumps. WHITE MOTOR CORP. Oct.27, 1967 [Nov.4, 1966], No.48928/67. Heading F1A. [Also in Division G3] In a radial piston pump having an annular inlet manifold 26 communicating with the pump cylinders 22 via elongated inlet ports 65 controlled by the pistons 55, a valve member 80 is rotatable against the ported face 74 of the cylinder block 12 to throttle the inlet ports 65, and thereby control the pump output. Valve member 80 may be actuated manually or by a pilot valve-controlled servopiston responsive to the pump output pressure, Figs. 3, 6 and 7 (not shown), (see Division G3). Portions 90 of the valve member 80, Fig. 5, out to control the flow cross-section of the inlet ports. Spring-loaded pressure blocks 84 bias the valve member against the cylinder block 12, which is located in a recess in the pump housing by anchor plates 16. The pistons 55 are reciprocated by an eccentric 54 on a shaft 32 mounted in roller bearings 35, 40, a retainer ring 60 engaging piston grooves 64 to effect their return strokes. Delivery takes place through spring-loaded lift valves 66 to an annular discharge manifold 24. Lubrication of the drive mechanism is effected by working fluid from the inlet manifold 26 passing through passages 92 in the valve member 80.
Patent GB-1326846-A (GB)
Title: Corrosion resistant ferritic chromium steel
IPC: C22C38/28
Filed: 1971-10-22
Abstract: 1326846 Ferritic steel SCHOELLERBLECKMANN STAHLWERKE AG 22 Oct 1971 [23 Oct 1970] 49313/71 Heading C7A A corrosion-resistant ferritic steel comprises, in weight per cent:- and titanium in an amount at least 12 times the carbon content. The balance being iron and impurities; in an alternative embodiment, the titanium may be wholly or partly replaced by niobium such that two parts of niobium replaces one part of titanium. If cooled from high temperatures, ductility of the alloy can be recovered by heating at 100-650‹C., preferably at 350‹C., to reduce brittleness. These alloys are also resistant to embrittlement by welding.
Patent GB-1533561-A (GB)
Title: Control system for dc machines
IPC: H02P7/28
Filed: 1975-12-01
Abstract: 1533561 Control of D.C. motors SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM 1 Dec 1975 [5 Dec 1974] 49315/75 Heading H2J Series D.C. motors J1, I1 and J2, I2 coupled to the wheels of an electric vehicle are driven and braked in parallel by the control system shown, the respective operations being as follows:- (1) Driving.-Thyristors T1, T2 are made permanently conductive and thyristors F1, F2 are blocked, whereby two circuits are formed respectively comprising firstly a member H1 (acting as a chopper and having a main thyristor and extinguishing circuit), a smoothing inductance L1, field winding J1, thyristor T1, armature I1, diode D1 and resistors R1, R2, and secondly members I2, T2, J2, L2, H2, D2 and R3, R4 whose identities are the same as corresponding components of the first circuit. The mark-space ratios of the choppers H1, H2 are varied to adjust the motor speeds. (2) Braking.-A logic control unit E causes the chopper thyristors to be extinguished, the cancelling of the firing signals for thyristors T1, T2 and, when the motor currents have fallen to zero and the potential of points 2, 6 relative to point 10 is equal to half of the D.C. supply voltage at 1, 10, the thyristors F1, F2 to be made permanently conductive. Thus two circuits are formed respectively comprising members H1, R1, L1, J1, F1, I2 and H2, R3, L2, J2, F2, I1, each chopper H1, H2 being controlled so that when it is conductive the combination J1, I2 and J2, I1 builds up voltage as a series generator, and when it is non- conductive the combination returns energy to the supply 1, 10 through the respective diodes D1 and D2. Braking is controlled by varying the mark/space ratios of the choppers. To revert to driving the unit E extinguishes the chopper thyristors, removes the firing signals for the thyristors F1, F2 and monitors the motor currents and circuit potentials as before, prior to firing the thyristors T1, T2. By individual control of the motors and arranging them to drive respective wheels, steering of the vehicle may be controlled. If the remanent field of the motors is insufficient to produce generator operation when braking is first commenced, even with the current direction in field windings J1, J2 remaining the same as when driving, these windings are supplied by an auxiliary excitation circuit at the start of braking, Figs. 2 and 3 (not shown), to ensure voltage build-up. For braking at high motor speeds the thyristors F1, F2 may be respectively connected in series with the combination of a further thyristor in parallel with a resistor, Figs. 4 and 5 (not shown), whereby the resistor is present in the braking circuit at high speeds and short-circuited when the speed has sufficiently decreased.