baber/WOPTO huggingface dataset:
Patent GB-962818-A (GB)
Title: Device for identification of engraved or printed documents
IPC: G07D7/00
Filed: 1960-11-24
Abstract: 962,818. Photo-electric document identification. P. J. SELGIN. Nov. 24, 1960, No. 40381/60. Heading G1A. Apparatus for the identification of an engraving or a printed surface, such as a currency note, comprising a surface bearing a plurality of spaced, approximately parallel lines of a particular unique configuration and of substantial width separated by spaces of different reflectance or transmissivity from said lines, comprises a complementary surface bearing lines corresponding in configuration with the spaces of the first surface, but of greater width, means for optically superimposing said two surfaces to produce a uniform optical effect over the combined surfaces when the two sets of lines are complementary and positionally matched, means for shifting said surfaces with respect to each other in a first direction substantially perpendicular to at least some of the said lines to produce a variation in the combined optical effect at a particular frequency determined by the distance between said lines and the speed of said shifting, photo-electric means responsive to said variations in optical effect to produce electrical signals at said particular frequency of occurrence corresponding to said variations and circuit means responsive to said signals and tuned to said frequency to produce a control signal at a predetermined amplitude of said signal frequency. A portion 9 of a document 4 or the like having dark and light bands 2, 3 respectively as in Fig. 1, clamped between flat surfaces 6, 7 is projected by a lamp 1 and lens system 11 on to a mirror 5 and reflected to a template or matrix 10 Fig. 2, having opaque lines of greater width than the spaces 3 of Fig. 1, and behind which is located a photo-electric cell 12. Mechanism comprising a cam 28 and a cam-plate 26, both driven from a motor 22, is arranged to provide a slow oscillation, indicated at 5b<1>, of the mirror 5 about an axis 5b lying in the plane of the paper, Fig. 5, and a rapid oscillation indicated at 5a<1> about an axis 5a perpendicular to the plane of the paper. The output signals from the photo-cell, generally of the form shown in Fig. 6, after passing through an A .C. amplifier, are applied to a resonant circuit 14 and via a thyratron valve 35 to a relay circuit 17, the arrangement being such that in the event of a mismatch between the section 9 examined and the matrix of template 10, no signal of sufficient amplitude to fire the thyratron 35 is derived, but if the matching condition is detected, the thyratron 35 fires and operates relay 17 to close the circuit of a motor 18, to effect a control operation, for example to feed the document to a compartment and to operate a vending machine 19, if the document 4 being examined was a currency note. U. S. A. Specification 2,646,717 is referred to.
Patent GB-1057663-A (GB)
Title: Improvements relating to relay networks
Inventor: WESLEY ALEC CHARLES
IPC: H01H47/00
Filed: 1962-10-29
Abstract: 1,057,663. Electric selective signalling. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct.18, 1963 [Oct. 29, 1962], No. 40824/62. Heading G4H. Which of a number of branches of a relay contact tree controls a dependent element is controlled by changeover contact means and indicated by receipt of a corresponding frequency. Referring to Fig. 1 (not shown), in a railway signalling system, a changeover relay (RB) is controlled by points and selects one of two relay units (C, D) to supply signals to a third unit (A). The first two units (C, D) are controlled in accordance with exit signals for routes leading from the points and, if selected, control a relay (RA) in the third unit (A) and on another line supply a frequency characteristic of the unit (C or D) to the third unit (A) to energize a relay (RPC or RPD) which together with the other relay (RA) energizes an output line specific to both the third unit (A) (since there may be more than one such unit) and the unit (C or D). Fig. 2 (not shown) shows a modification in which a single line leads from each unit (C and D) to the third unit (A). Frequency generators and receivers may be tuned-reed devices and the receivers in a given third unit (A) may be in parallel or series.
Patent GB-970569-A (GB)
Title: Domestic dish washers and other washing machines
IPC: D06F34/08
Filed: 1962-10-29
Abstract: 970,569. Dishwashing machines. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 29, 1962 [Dec. 14, 1961], No. 40829/62. Heading A4F. [Also in Division D1] A dish washing machine has a timer operable by a motor for causing the machine to perform a predetermined programme, and a heater in the washing chamber which is connected, at the beginning of the automatic programme, to a power supply through a thermostatic switch adapted to open at a predetermined temperature. The timer 42 comprises a motor driven rotary cylinder having cams C1, C2, C3, C4 electrically connected through the wire 43. In operation the knob 47 is manually rotated to bring the edge of cam surface C1 in contact with the brushes F1, F2, thus starting the timer motor 46, which continues the rotation of the cam cylinder 42. When the cam C2 contacts the brush F3 the valve 28 is opened supplying water to the washing chamber, and, before it is full, the cam C4 contacts the brush F5 energizing a low wattage heater 23 and the main motor 15 starting the wash cycle. When the high wattage heater 40 is energized by the cam surface C3 contacting the brush F4 the motor 15 is shorted out and stopped until the heater is de-energized by the thermostat 41, which opens at a predetermined temperature. The wash cycle continues until the cam surface C4 runs off the brush F5.
Patent GB-999750-A (GB)
Title: Capacitance measuring apparatus
IPC: G01F23/26
Filed: 1963-10-16
Abstract: 999, 750. Capacitance measurement; determining liquid level. STANDARD TELEPHONES & CABLES Ltd. Oct. 16, 1963, No. 40843/63. Headings G1N and G1U. [Also in Division H3] An apparatus for measuring a capacitance C x  in the presence of a large static capacitance C s  comprises a pulse generator (GEN) which provides a continuous train of pulses of given polarity to charge the capacitor to be measured, which is contained in the charge circuit 14, and also to charge a second capacitor C b  in a second charge circuit 18. The charge circuits are such that the capacitors are fully charged during each pulse. Discharge circuits 16 and 20 for the capacitors C x  and C b  are arranged such that the capacitors will be fully discharged between pulses, and it is arranged that the discharge current for C x  and the charge current for C b  pass in opposite directions through a common path which includes the circuit of a direct current meter 6. The capacitor C b  is adjusted so that its charge current will balance the discharge current of the static capacitance of the system contained in parallel with C x , so that the reading of the meter 6 indicates the value of C x , the capacitance to be measured. Diodes 26, 36, 56 and 62 are included in the various charge and discharge circuits to ensure that charge and discharge currents flow only in the allotted paths. For the purpose of adjusting the meter, a test capacitor of known value may be incorporated into the circuit in place of C x  by means of a relay. The meter range may be adjusted by means of a tapped potentiometer 48. The pulse generator is suitable a transistorised multivibrator (see Division H3). The apparatus is particularly adapted for use in a liquid level measuring arrangement. Liquid level is detected by means of a capacitive probe 77 which is attached to a housing 76 containing most of the circuitry of the invention, including the pulse generator embedded in plastic in the unit 23, and balance and test capacitors. This renders the circuitry rugged and reliable and not affected by humidity changes. The balance capacitor C b  may be adjusted from outside the housing by a shaft 122, and the test capacitor C t  is similarly adjustable. A cable 78 from the housing passes to a unit 79 which contains the meter and its associated circuit components, the power supply for the generator, and the necessary control switches.
Patent GB-1124889-A (GB)
Title: Luminous display device
IPC: F21K2/00
Filed: 1966-09-14
Abstract: A luminous display device comprises a plurality of selectively heatable elements 22 arranged in a matrix and coated with fluorescent material made luminous by U.V. light and quenched by heat and means for applying U.V. light to the elements whereby a luminous pattern is created determined by the elements not subject to heating.  The elements 22 are resistance heaters arranged to form the digit eight and are heated in appropriate groups by actuating keys 26 which operate gangs of contacts, to darken unwanted portions of the eight leaving the remainder forming one of the digits zero to nine.  The elements may be <PICT:1124889/C4-C5/1> heater coils coated with the fluorescent material or may comprise a phosphor-coated non-conductive wire intertwined with conductive wires which can be energized to heat part of the coated wire. Alternatively, heating may be produced by electric or magnetic induction or radiation.  Adjustable cooling by conduction, convection, radiation or thermionic effect may be provided, e.g. the elements may be mounted on a heat sink base to vary the erasing time. The elements may be movable relative to each other. The phosphor may be Zn, CdS activated by Ag poisoned with Ni in a binder which is applied wet and dried on the element.
Patent GB-1453775-A (GB)
Title: Filtering screen changer for process plant
IPC: B29C48/03
Filed: 1974-09-20
Abstract: 1453775 Extruder filter screen GLOUCESTER ENG CO Inc 20 Sept 1974 [28 Sept 1973] 41085/74 Heading B5A [Also in Division B1] A screen changer, e.g. for a plastics extruder has a carrier 16 slidably mounted across a duct 12 and having a pair of apertures 30. The apertures each carry from downstream to upstream a breaker plate 32 having an annular shoulder 40, and a screen 34 dimensioned to rest on an annular shoulder 44 of the breaker plate and be flush with breaker plate surface, and a back up plate 36 with circumferentially spaced lugs 50 adapted to fit into peripheral grooves of aperture 30. The downstream face of breaker plate 36 fits flush with respective faces of the carrier. Seals 20 prevent leakage. Carrier 16 may be moved hydraulically by assembly 26.
Patent GB-1332389-A (GB)
Title: Preparation of gap-si heterojunction by liquid phase epitaxy
IPC: H01L21/208
Filed: 1971-09-03
Abstract: 1332389 Epitaxial growth on substrates VARIAN ASSOCIATES 3 Sept 1971 [24 Sept 1970] 41145/71 Heading B1S [Also in Division H1] Gallium phosphide is epitaxially grown on a silicon substrate by bringing a solution of gallium phosphide in a solvent consisting of tin and/or lead into contact with the substrate and then lowering the temperature of the solution-substrate interface. Typically the substrate has a 111 or 100 orientated surface and the solvent saturated with both gallium phosphide and silicon. The solution can be prepared in two separate heatings, in which the phosphide and silicon respectively are added to the solvent followed by quenching, though all components of the melt may be mixed by a single heating in a tiltable boat with the substrate at the opposite end of the boat which is then tilted to flow the solution on the silicon for the duration of the growth period. Alternatively the substrate is dipped into the solution. Either the substrate is at a lower temperature than the solution when contacted or its temperature is subsequently lowered sufficiently to give the required epitaxial layer thickness, typically 10Á. The silicon may form part of an integrated circuit.
Patent GB-1497444-A (GB)
Title: Method and device for measuring vibrational quantity
IPC: G01D/
Filed: 1975-10-08
Abstract: 1497444 Noise dosimeters SHINE PATENT AB 8 Oct 1975 [24 Oct 1974] 41247/75 Heading G1N A noise dosimeter comprises a microphone and comparators 4a, 4b, which activate when their respective thresholds are reached respective lightemitting diodes 5a, 5b to blacken areas 6a, 6b of photographic film, the blackening being proportional to the total time for which monitored noise has exceeded respective levels. A third L.E.D. 5' is activated all the time the dosimeter is in use. The microphone 1 is ceramic and connected via a filter 2, which may have an A-weighted characteristic or be an octave band filter or tierce band filter to an adjustable gain logarithmic amplifier 3. The film, LEDs, comparators, gain adjusting resistor of the amplifier, and other components may be housed in a removeable light-proof cassette, different film sensitivities for day and week and different thresholds may be available. The dosimeter is worn at the ear and may be built into a protective ear flap. For calibration, a cassette having no film is used, the LEDs being externally visible.
Patent GB-1365515-A (GB)
Title: 6-tetrahydro imidazol/2 1-b/thiazoles
Inventor: SPICER L D
IPC: C07D513/04
Filed: 1971-09-03
Abstract: 1365515 6-(Substituted phenyl)-5,6-dihydro or 2,3,5,6 - tetrahydro - imidazo - thiazoles AMERICAN CYANAMID CO 3 Sept 1971 41314/71 Heading C2C Novel DL and L isomers of compounds of Formula (I) and salts thereof where R 1  and R 2  are hydrogen, C 1-10  alkyl, C 2-8  alkenyl, C 3-7  cycloalkyl, hydroxy C 1-4  alkyl, C 1-4  alkanoyl oxy-C 1-4  alkyl, C 1-4  alkoxy C 1-4  alkyl, benzyl, substituted benzyl, phenyl ethyl, substituted phenyl ethyl, mono- and dinitro phenyl, 2- and 4-pyridyl, 2- and 4- pyrimidinyl, 2-thiazolylpyridylmethyl, furfuryl, tetrahydrofurfuryl or R 5 CO wherein R 5  is hydrogen, C 1-9  alkyl C 2-7  alkenyl, C 3-7  cycloalkyl, C 1-6  haloalkyl C 1-6  aminoalkyl, mono- and di- C 1-4  alkyl-amino C 1-4  alkyl, piperidino- C 1-4  alkyl, pyrrolidino C 1-4  alkyl, morpholino C 1-4  alkyl, C 1-4  alkoxy C 1-4  alkyl, phenyl, substituted phenyl furyl, tetrahydrofuryl, naphthyl, C 1-8  alkoxyamino, mono- or di-C 1-4  alkylamino, piperidino, pyrrolidino or morpholino, or NR 1 R 2  taken together represents piperidino, pyrrolidino, morpholino or the group (C 1-4 alkyl) 2  -NCH = N- and R 3  and R 4  are selected from hydrogen, halogen or nitro; the term substituted refers to mono-, di- or trisubstitution by halogen, nitro or C 1-4  alkoxy, = is a single or double bond and when R 3  and R 4  are hydrogen only one of R 1  and R 2  may be hydrogen, are prepared (1) by reaction of a compound IV in which R 6  is hydrogen or C 1-4  alkanoyl and X is an anion with (a) concentrated sulphuric acid and treating the compound formed with an alkali metal hydroxide or ammonium hydroxide or (b) thionyl chloride at 40-75‹ C. and treating the reaction product with acetic anhydride at 50-140‹ C., removing excess C 1-4  alkanoyl anhydride, treating the reaction product with strong mineral acid and treating the acid solution with an alkali metal hydroxide or ammonium hydroxide, (2) by reaction of a compound of Formula II where R 1  is hydrogen or C 1-10  alkyl, and R 3  and R 4  are hydrogen, halogen or nitro, with an acid chloride or anhydride (R 2 COCl or (R 2 CO) 2 O) where R 2  is C 1-4  alkyl, C 3-7  cycloalkyl phenyl or C 1-4  alkoxy or (3) from substituted acetophenones of general Formula III using procedures described in U.S.A. Specification 3,673,205. Compounds of general Formula I may also be prepared by alkylation of amino group using the corresponding iodoalkyl or by nitration or bromination in the phenyl ring. The nitro group may also be reduced to the amino group. Compounds of general Formula I are useful in treating helminthiasis in warm-blooded animals and may be administered orally or parenterally.
Patent GB-1077067-A (GB)
Title: Detergent tablet
Inventor: HAMPSON BRIAN HARRY
IPC: C11D17/00
Filed: 1963-10-18
Abstract: A detergent tablet, suitable for washing machines, contains 15-45% by weight sodium nitrilotriacetate and has a fracture strength after at least one week of ageing of 7-9 kg.; the tablet is formed by compression to an initial fracture strength of 0.9-4.5 kg. (measured within 1 hour of compression) and ageing for at least one week. Other constituents of the tablet are sodium dodecyl benzene sulphonate, sodium toluene sulphonate, coconut monoethanolamide, sodium carboxymethylcellulose, sodium tripolyphosphate, sodium pyrophosphate, sodium carbonate, silicate, sulphate, chloride and perborate, talc, optical whitener and water.
Patent GB-1243533-A (GB)
Title: Apparatus for the purification of polluted water
IPC: C02F3/08
Filed: 1968-08-29
Abstract: 1,243,533. Treating polluted water. SOC. NOUVELLE SETA. 29 Aug., 1968 [30 Aug., 1967], No. 41382/68. Heading C1C, Apparatus for use in the aerobic bacteriological treatment of polluted water comprises a drum 12 with a perforated periphery 14 which is rotatable about a shaft 11 in a tank 10 for the water and contains elements 15 to which the bacteria are attached and means to circulate the water and evacuate excess sludge formed. The packing elements may consist of tubular members of the Raschig ring type and have a specific gravity which is lower than that of the water. The periphery 14 of the drum may be of wire netting or perforated sheet metal. In a further embodiment, Fig. (not shown), the drum (16) has several compartments (18) formed by radially extending walls (17) and wire-netting or perforated sheet metal plates (21) with rubber or elastomeric strips (22) which scrape the bottom of the tank to prevent the settling of sludge.
Patent GB-941504-A (GB)
Title: Improvements in and relating to gland seals
IPC: F16J15/18
Filed: 1961-11-20
Abstract: 941,504. Stuffing-boxes. BRITISH PETROLEUM CO. Ltd., P. A. KING, K. LESTER, and W. L. THOMAS. Sept. 26, 1962 [Nov. 20, 1961], No. 41410/61. Heading F2B. [Also in Division F1] A shaft seal assembly for a vacuum gear pump comprises a sealing member 11 of flexible, deformable material which is compressed around a rotatable shaft 9 by means of a gland 13, the part of the shaft in contact with the sealing member being cut with at least one groove 12 in the form of an annulus set at right angles to the shaft axis. The sealing member may be of P.T.F.E. or fluorinated rubber and is in the form of a sleeve with a truncated conical end portion which is engaged by a corresponding recess in the gland 13 when the latter is screwed into the pump body. The grooves 12 are preferably V-shaped in cross-section. An 0-ring 5 of fluorinated rubber forms a seal between the front and rear portions 1, 2 of the pump body.
Patent GB-1287159-A (GB)
Title: Method of producing high strength mortar or concrete
Inventor: NISHI SEIYA
IPC: C04B40/02
Filed: 1970-08-28
Abstract: 1287159 Concretes ONODA CEMENT CO Ltd 28 Aug 1970 [29 Aug 1969] 41496/70 Heading C1H Concretes containing salts of #-naphthalene sulphonic acid-formaldehyde condensate are cured in pressurized steam. The pressure is at least 2 kg./cm.<SP>2</SP> and the preferred temperature 183 C. Specified cements are Portland (ordinary, high early strength and moderate heat), blast furnace, silica and fly ash. The condensate acts as a water reducer. The aggregate is sand.
Patent GB-1385137-A (GB)
Title: Ink drop printer
IPC: B05B5/025
Filed: 1973-09-04
Abstract: 1385137 Printers INTERNATIONAL BUSINESS MACHINES CORP 4 Sept 1973 [13 Oct 1972] 41513/73 Heading G4H In an ink drop printer, one or more of a predefined sequence of ink-drop-deflection signals can be skipped through to speed up printing. After a shift register has been loaded via another shift register with a bit sequence for a given column of a character dot matrix, from a character generator, the bit sequence is shifted out, each "1" bit gating a slow clock train to a counter and permitting a D/A converter fed by the counter to control charging of a respective ink drop which is then deflected by a constant field by an amount dependent on the charge and therefore count. Each "0" bit zeroes the D/A converter output (so that the ink drop is caught in a gutter rather than deflected on to the paper) and gates a fast clock train to the counter so that the count position not required for printing is skipped through fast. To reduce ink spatter &c.' two or more sweeps down each column are made, with adjacent drops being deposited in different sweeps. A staircase generator may replace the counter and D/A converter.
Patent GB-1506242-A (GB)
Title: Fastener device
IPC: B29C61/10
Filed: 1976-09-17
Abstract: 1506242 Heat recoverable plastics tube COAL INDUSTRY (PATENTS) Ltd 17 Sept 1976 [10 Oct 1975] 41601/75 Heading F2P [Also in Divisions B5 and H2] A device for closing sleeves or joining two articles, comprises a first component having a plurality of protrusions, and a second component having a plurality of recesses adapted to interlock and engage with the protrusions. The protrusions and/or the recesses are formed of a heat recoverable polymeric material and dimensioned such that when the recesses are in a heat unstable condition a loose interlocking is achieved which is tightened upon heat recovery. As described, the device is particularly useful for joining a heat-shrunk split sleeve, which may be bifurcated (Figs. 4 and 5, not shown), used to cover the joint of a cable or pipe to provide a water resistant covering. The components may be joined to the sleeve by solvent cement welding, fusion welding or rod welding, or may be an integral part of the sleeve. Each component comprises preferably a plurality of dove-tail tongues and grooves and the resulting joint may be half lapped.  The polymeric material may be a plasticized grade of PVC, a PVC copolymer, a blend of PVC homo or co-polymer with one or more other polymeric materials, low or high density thermoplastic polythene, polypropylene, or a polyamide. The mating surfaces of the components may be coated with a solvent cement, a hot melt adhesive or a rubber based adhesive, and the inner surface of the components and the sleeve may be coated with a sealant or mastic to prevent water ingress.
Patent GB-898960-A (GB)
Title: Improvements relating to the heat sealing of packages
Inventor: LEE EDWARD WILLIAM
IPC: B31B50/64
Filed: 1958-12-24
Abstract: 898,960. Seaming non-metallic sheet material. TECHNICAL WAXES Ltd. March 24, 1960 [Dec. 24, 1958], No. 41621/58. Class 42 (1). [Also in Group XVII] In a method of heat sealing packages made from a waxed material, a flat heated blade is caused to enter between the wax coated faces to be fastened together, and in close contact therewith, for a length of time sufficient to bring the wax to a tacky condition and, immediately after the withdrawal of the heated blade from between the faces, the faces are pressed together so as to adhere to each other. In the apparatus shown in Fig. 3, flattened cartons are held on a conveyer 6 by clips 7. The cartons are clamped so that a side wall 3 lies on top of the outer face of a side flap 2. Lying in the path of these overlapped portions is a wedgedshaped separator 8 which enters between the overlapped portions and causes one to pass under and one over a relatively thin heated metal blade 9. The portions to be joined together are held in contact with the blade 9 by rollers 12. The heat from blade 9 causes the wax on the two portions to become plasticized to an extent such that after leaving the heater 9 and when the two portions pass between the pressure rollers 13, the two surfaces are bonded together. The rollers 13 are formed as cooling rollers with a coolant fluid passing through them. A similar method may be used for closing filled cartons and a suitable form of carton is shown in Fig. 1.