baber/WOPTO huggingface dataset:
Patent GB-1521889-A (GB)
Title: Ink jet printing apparatus
IPC: G06K1/12
Filed: 1975-12-31
Abstract: 1521889 Ink jet printing POST OFFICE 31 Dec 1975 [31 Dec 1974] 56143/74 Heading B6F An ink jet printer comprises means projecting a filament 2 of ink towards a record medium 3 such as an envelope, and a single deflecting electrode 9 placed alongside the filament path to deflect ink selectively into a gutter 12. The gutter may comprise a rotating dish (Fig. 5, not shown) provided with a scraper of PTFE.
Patent GB-1219299-A (GB)
Title: Improvements in audio frequency amplification circuits
IPC: H03F3/185
Filed: 1968-11-28
Abstract: 1,219,299. Field effect transistor amplifiers. INDUSTRIAL RESEARCH PRODUCTS Inc. 28 Nov., 1968 [3 July, 1968], No. 56418/68. Heading H3T. A field effect transistor acting as an amplifier has a first electrode (e.g. 114) connected to one terminal of a power supply, a third electrode (e.g. 116) connected to the other terminal of the supply through the load 122, the input connected between second and third electrodes through a path which excludes the load, and bias means (e.g. 130) connected between the second electrode and the load terminal of the power supply. This arrangement enables pinchoff to be achieved with a lower supply voltage. Using the diodes 130 as the bias supply (instead of a resistor, as in Fig. 2, not shown) provides for leakage current a high resistance which will become lower as ageing occurs. A diode 132 prevents a blocking bias building up at the gate.
Patent GB-1430600-A (GB)
Title: Moulding compositions
IPC: C08L69/00
Filed: 1973-12-06
Abstract: 1430600 Polycarbonate/graft - copolymer moulding compositions BAYER AG 6 Dec 1973 [6 Dec 1972 4 May 1973 25 Oct 1973] 56490/73 Headings C3G C3P and C3R A moulding composition comprises, by wt., 70-30 parts of (1) a thermoplastic polycarbonate, and 30-70 parts of (2), being (2.1) a graft copolymer of particle-size 0À2-5À0 Ám. and optionally (2.2) a homopolymer. (2.1) is a rubber (2.1.1) on to which has been polymerized a monomer component (2.1.2) being methyl methacrylate M or a mixture of (2.1.2.1) and (2.1.2.2), where (2.1.2.1) is styrene S and optionally M, and (2.1.2.2) is acrylonitrile A and optionally M. (2.2) is a homopolymer of M or a copolymer of (2.2.1) and (2.2.2) where (2.2.1) is S and/or methylstyrene, and optionally M, and (2.2.2) is A and/or methacrylonitrile, and optionally M. (2.1.1): (2.1.2) is from 85: 15 to 40 : 60. The composition contains 10- 35% (2.1.1). 25-100% of (2) is (2.1) and 0- 75% is (2.2). 95-50% of (2.1.2) is (2.1.2.1) and 50-5% is (2.1.2.2). 95-50% of (2.2) is (2.2.1) and 50-5% is (2.2.2). Rubber (2.1.1) may be polybutadiene of particle-size 0À3-0À4 Ám. Graft copolymer (2.1) may be made by emulsion polymerization on to a latex of rubber (2.1.1) by the method of Specification 1,089,356. Polycarbonate (1) may consist of 50-85% polycarbonate made from a halogen-free polyphenol, and 15-50% polycarbonate where n is 15-200; X is C 1 _ 5  alkylene or alkylidene, C 5 _ 15  cycloalkylene or cycloalkylidene, a single bond, -O-, or and Hal is Cl or Br. Examples illustrate compositions containing polycarbonate, ABS graft copolymer and styrene/acrylonitrile copolymer. Use.-Injection-moulding or deep-drawing of prefabricated sheet or films to form housing sections, e.g. for domestic appliances or coverpanels for building. Reference has been directed by the Comptroller to Specifications 991,422, 992,503 and 1,293,973.
Patent GB-1407279-A (GB)
Title: Indicator instrument assemblies
IPC: G01P1/07
Filed: 1972-12-07
Abstract: 1407279 Indicating measurement VAUXHALL MOTORS Ltd 29 Nov 1973 [7 Dec 1972] 56494/72 Heading G1J In an instrument for indicating at least two quantities, a first substantially transparent polarizing filter 26 overlies indicia on a disc 20 for one of the quantities, a second substantially transparent polarizing filter 40 overlies the first filter 26, indicia for a second of the quantities are arranged on a transparent dial 28 between the two filters, and lights 46, 44 are provided to direct light on respective sets of indicia, the filters 26, 40 being rotatable one relative to the other in parallel planes between a first position in which light reflected from the first indicia on the disc 20 passes through both filters, and a second position in which such light passes only through the first filter and is blocked by the second filter 40. As applied to a tachograph and speedometer, a tachograph record disc is supported on the disc 20, and speed indicia are marked with white or light-coloured material on the transparent dial 28. The first filter 26 is fixed in the instrument casing, while the second filter 40 and a cover glass 12 are mounted in a ring 14 which is rotatable on the front of the casing. A speedometer point 34 is carried on a shaft 30 rotatably supported in the dial 28 and carrying a funnel-shaped guide collar 36 to assist engagement with a rear section 22 of the speedometer shaft projecting forwards from the instrument mechanism in the rear of the casing. For normal use, while the vehicle in which the instrument is mounted is being driven, the filters 26, 40 are arranged so that their axes of polarization are at right angles to each other, the dial 28 then appearing a deep blue-black with light-coloured indicia. To view the tachograph record disc, the filter 40 is rotated until its polarization axis is parallel to that of the filter 26, and the lamp 46 is switched on. The first filter 26 can be combined with the dial 28, and the second filter 40 can be combined with the cover glass 12. In a further modification, the instrument casing is stepped in diameter, and the speed indicia are arranged on the shoulder formed by the step.
Patent GB-1328387-A (GB)
Title: Detonation fuses
IPC: C06C5/04
Filed: 1970-12-02
Abstract: 1328387 Detonation fuze DYNAMIT NOBEL AG 2 Dec 1970 [3 Dec 1969] 57359/70 Heading F3A A detonation fuze comprises a wrapped core 1 of a brisant explosive charge surrounding at least one hollow tube 5. The tube may have an internal cross-section which is circular or has the shape of an equilateral triangle. The tube is made of polyethylene, polypropylene or a ductile metal such as copper. If more than one tube is employed, they may be concentric. The core is wrapped with spun filaments of natural and/or synthetic plastics fibres or strips of wrapping material 2. A layer of thermoplastic plastics material or a ductile material provides a water-tight sheathing 3. The brisant explosive comprises Hexogen, nitropenta, or hexanitrooxanilide. In the three examples the fuze has a core load of 12 g./m., 40 g./m., and 15 g./m. with respective denotation velocities of 7600 m./s., 8300 m./s. and 6100 m./s. A process and apparatus for the manufacture of the fuze is disclosed in co-pending Specification 1,328,388.
Patent GB-1192280-A (GB)
Title: Arrangement for scanning a Field in Two Directions
IPC: H04N3/06
Filed: 1968-12-13
Abstract: 1,192,280. Television scanning system. AGA AB. 13 Dec., 1968 [28 Dec., 1967], No. 59334/68. Heading H4F. An arrangement for scanning a field in two mutually perpendicular directions comprises a light device LD (i.e. an infra red or visible radiation pick up device as shown, although it may comprise a light source), coaxial optical systems OS and SO which respectively form an image of light device LD at point P1 and an image of a point of the field at point P2, and rotatable scanning prisms SP1 and SP2 whose axes of rotation are perpendicular to each other and to the optical axis A of the optical systems OS and SO, prism SP2 displacing the image point P2 to point P3. To provide good scanning efficiency the switching-over intervals for the light beam between faces of the prisms should be as short as possible and to effect this points P1 and P3 are arranged to be equally spaced from the path described by the edge of the respective prisms SP1 and SP2 upon rotation, i.e. P1 should be as far inside the circular path of SP1 as P3 is outside that of SP2. Preferably points P1 and P3 are symmetrically disposed about the axis of rotation of prism SP1, prism SP2 being adjacent prism SP1 so that both image points P1 and P3 fall within prism SP1 as shown in Fig. 2. The resulting signals from pick-up device LD may be displayed on a CRT, the sawtooth generators HG and VG for which being synchronized with the prisms SP1 and SP2 respectively. The refractive index of the prisms is preferably between 2 and 5.
Patent GB-1269479-A (GB)
Title: Reference clock generator
IPC: H04L25/49
Filed: 1969-12-11
Abstract: 1,269,479. Automatic phase control; transistor sawtooth oscillators; digital transmission systems. INTERNATIONAL BUSINESS MACHINES CORP. 11 Dec., 1969 [14 Jan., 1969], No. 60452/69. Headings H3A, H3T and H4P. [Also in Division G4] A reference clock generator for controlling the detection of binary data carried within a succession of bit cells of an input signal, comprises a waveform generator for generating a reference signal at substantially twice the data rate, alternate periods of the reference being of different durations than the intervening periods, and a phase controller responsive to the input signal and reference signal for maintaining a phase relationship between them such that the centres of the alternate periods of the reference coincide with the edges of the bit cells and the centres of the intervening periods coincide with the bit cell centres. As disclosed, binary data from a magnetic tape, disc or drum, or from a communication channel, has a transition at bit cell centre for 1, and a transition at bit cell beginning for 0 except that the latter transition is absent if the preceding bit was 1. A differentiator, limiter and peak pulser, in series, provide a pulse for each transition and these pulses are gated to an output when a trigger 50 is on to obtain just the pulses representing 1, the transition pulses also being compared in phase with the output of a sawtooth generator 40 to provide a frequency-correcting voltage to a transistor 152 in generator 40 via a memory and amplifier 42. Each flyback of the sawtooth reverses the state of the trigger 50. The on and off states of the trigger 50 enable transistors 154, 156 respectively to supply charging current via respective different resistors 158, 160 and the transistor 152 to a capacitor 172 providing the sawtooth voltage. When the capacitor voltage reaches 3 volts, transistor 174 turns transistor 176 on thus turning 178 off and 180, 182 on, thereby discharging the capacitor 172 (sawtooth flyback). When the capacitor voltage drops to - 3 volts, transistor 184 conducts to turn 178 on and 180, 182 off. As stated, each sawtooth flyback reverses trigger 50 so that the charging current for successive sawtooths go via resistors 158 and 160 alternately so that alternate sawtooths have one slope value and the intervening sawtooths have a second slope value. For the above code, the steeper sawteeth are centred on the bit cell edges, and the others on the bit cell centres, and the trigger 50 is on for longer periods than off, but for double-frequency coding the reverse is achieved by altering the resistors 158, 160. These resistors could also be replaced by a potentiometer. Instead of charging a single capacitor 172 with two current values alternately, two different-valued capacitors could be charged alternately with the same current. The invention could also be applied to detectors using integration.
Patent GB-1344248-A (GB)
Title: Aluminum alloys
IPC: C22F1/05
Filed: 1970-12-31
Abstract: 1344248 Aluminium alloy OLIN CORP 31 Dec 1970 [25 Feb 1970] 62052/70 Heading C7A A hot worked aluminium-base alloy consists of the following, in per cent by weight: - and optionally: - Al the balance apart from impurities:- Cr + Zr + Mn being 0À2 - 0À35 The impurities may be Fe up to 0À6, Cu up to 0À3, Zn up to 0À5, B up to 0À008, other elements up to 0À1 each and up to 0À5 in total. The alloy may be hot worked with a finishing temperature in excess of 900‹F then quenched in water at a cooling rate of 1000-10, 000‹F per minute or air cooled at a rate 100-1, 000‹F per minute to a temperature of 350‹F or below. The alloy may then be aged at 200-410‹F for “ to 24 hours. Homogenization may precede hot-working and cold-working up to 5% may follow the quenching or cooling. Specification 1344249 is referred to.
Patent GB-1259698-A (GB)
Title: Single-gun, plural beam cathode ray tube
IPC: H01J31/20
Filed: 1969-12-22
Abstract: 1,259,698. Colour television tubes. SONY CORP. 22 Dec., 1969 [30 Dec., 1968], No. 62494/69. Heading H1D. In a colour television tube of the type wherein three beams converge at the centre O of a common focusing lens L M , Fig. 3, individual pre-focusing lenses are provided for each of the beams. In Fig. 3 the cathodes are aligned with respective apertures in the closed ends of cupshaped grids G2 and G3 which form the respective pre-focusing lenses L R , L G  and L B ; the apertures in grid G2 may be surrounded by cylinders 23, as shown. The powers of the prefocusing lenses may be equal, or alternatively the powers of the outer lenses L R  and L B  may be greater than that of L G  to compensate for the slight aberrations imparted to the outer beams due to their passage through the main lens L M  at angles to the axis. In the tube shown, the cathodes are coplanar and the beams are converged on a shadow mask M by magnetic convergence means F, (Fig. 4, not shown); this may be replaced by electrostatis convergence means (Fig. 5 and 6, not shown) or omitted, in which case the signals applied to the cathodes are suitably delayed. Alternatively the cathodes may be disposed at the corner of an equilateral triangle.
Patent GB-2001946-A (GB)
Title: Explosive compositions
IPC: C06B23/00
Filed: 1978-07-04
Abstract: The content of liquid nitrate esters and blasting soluble nitrocotton in a gelatine explosive composition is reduced by incorporating in the composition a dispersing agent and optionally also a water-proofing agent, e.g. tamarind seed flour or guar gum. Various dispersing agents are specified. Other ingredients include orthonitrotoluene, ammonium nitrate, waxed wood meal, barytes, china clay, rosin, and sodium chloride.
Patent GB-2002516-A (GB)
Title: Device for preparation of liquid control solutions
IPC: G01N33/96
Filed: 1978-08-11
Abstract: A device for the preparation of a liquid control solution comprises an insoluble carrier matrix and, incorporated therewith, a control composition releasable therefrom upon contact with a predetermined quantity of solvent to provide the control solution. The control composition can include at least one physiological fluid component or an industrial or other non-physiological fluid component or a compound capable of simulating said component when in a solvent. The physiological fluid component may be present in normal or pathological amounts.
Patent GB-784133-A (GB)
Abstract: 784,133. Radio receiving apparatus. OBERLANDER, H. M. Jan. 15, 1954, No. 1184/54. Drawings to Specification. Class 40 (5). A chassis for a radio receiver comprises a rigid flat metal plate arranged parallel to the front wall of the set and carrying, in addition to the tuning mechanism and the tuning scale, those components such as variable capacitors and resistors which are sensitive to vibration, and one or more horizontally disposed sheets, which may be made of insulating material, on which the remaining components of the receiver, including the valves, are mounted. Pushbutton-tuning mechanism may be arranged upon the front plate. Fig. 11 (not shown) illustrates an arrangement comprising three horizontal sheets of plastic or ceramic, the central one being stronger than the outer pair and carrying the heavier parts of the receiver such as transformers and chokes.
Patent GB-2032892-A (GB)
Title: Venting Closure
IPC: B65D41/04
Filed: 1978-11-02
Abstract: A venting closure 10 for a container having a threaded neck portion 2 comprises a cap having a crown and an internally-threaded depending skirt, the inside face of the crown of the cap receiving a liner 12 composed of a layer of an impermeable material, e.g. closed cell expanded polyethylene, at least partially faced on the surface away from the crown of the cap with a fibrous, spun-bonded polyethylene sheet material. <IMAGE>
Patent GB-2008131-A (GB)
Title: Method for polymerizing olefins using Ziegler-type catalysts
IPC: C08F4/02
Filed: 1978-11-07
Abstract: In a method for polymerizing olefins there is used a Ziegler-type catalyst composed of a first catalyst component which consists of (a) magnesium or manganese halide, (b) a titanium or vanadium compound containing halogen atom and (c) an electron donor compound; and a second catalyst component expressed by a general formula of M1 Al R1 R2 R3 R4 or M2 (Al R1 R2 R3 R4)2, where M1 is Na or K, M2 is Ca, Sr, Ba or Mg, and each of R1 R2 R3 R4 is a hydrocarbon radical having 1 to 20 of carbon atoms. In a modification at least three R groups may be other than hydrocarbon groups.
Patent GB-2017116-A (GB)
Title: Coating Composition for Polyolefinic Films
IPC: C08J7/052
Filed: 1979-01-04
Abstract: A coating composition for polyolefinic products, especially polypropylene films, consisting of a solution of a dry three-component polymer system comprising:     a) a vinyl or vinylidene chloride copolymer;   b) a polymer of (meth) acrylic ester(s); and c) a phenolic resin, terpenephenolic resin or mixtures thereof. The coated products are useful as packaging films having e.g. improved thermosealability. t
Patent GB-2014520-A (GB)
Title: Spreading noise generated by load supporting elements
IPC: B60C11/11
Filed: 1979-02-05
Abstract: Noise generated by load supporting elements of an apparatus (e.g., tread 12 of a tire 10) having a plurality of repeating design cycles 14 is spread over a broad frequency spectrum. This is accomplished by making the apparatus with the load supporting elements (e.g. tread lugs) arranged in accordance with the following procedure.   First, determining the maximum number of repeating design cycles 14 which may be placed about the apparatus, the design cycles being of at least two different lengths; Second, selecting a maximum pitch ratio i.e. ratio of maximum and minimum design cycle lengths; Third, determining the appropriate number of harmonic segments 16 which the apparatus can be divided into; Fourth, determining the size of each of the harmonic segments 16 and the number of design cycles 14 for each of the harmonic segments; Fifth, arranging the various design cycles 14 in each of the harmonic segments 16 so that the wave length of the predominant modulation frequency of the segment corresponds to the fundamental length of that segment.   <IMAGE>
Patent GB-2015703-A (GB)
Title: Arresting or diverting device for fluid stream
IPC: F16K1/16
Filed: 1979-04-03
Abstract: The device comprises two semi- cylindrical sections each containing a pivotal hollow half-cone and adapted for connection to a flanged end of an outlet. After the device has been connected to the outlet the cones are released to pivot under the action of fluid flow to stop the flow out of the outlet, upper exit ports on the device conducting the flow to storage. <IMAGE>
Patent GB-2016327-A (GB)
Title: Metal pouring apparatus
IPC: B22D39/00
Filed: 1979-04-30
Abstract: Blockage of the delivery pipe 18 by solidified metal in an intermittent casting machine is prevented by heating the pipe uniformly. The pipe 18 and nozzle 20 are included in an electrical circuit 15 which when activated, resistance heats the entire pipe and nozzle to at least the temperature of the molten metal which flows from reservoir 16 into mould 22. <IMAGE>
Patent GB-2027518-A (GB)
Title: Pistons
IPC: C23C4/02
Filed: 1979-05-18
Abstract: An article, for example a piston for an internal combustion engine is formed of two or more layers 1, 2 and 3 of different material compositions in which there is a controlled graded change of composition between layers or within at least one of the layers. In a piston the skirt has a first composition, the crown 4 has a second composition and between the skirt and the crown there is an intermediate zone 2 in which the relative proportions of the materials lie intermediate those in the skirt and crown. <IMAGE>
Patent GB-2021143-A (GB)
Title: Lavatory cleansing tablets
IPC: C11D3/22
Filed: 1979-06-19
Abstract: A process for the preparation of a lavatory cleansing tablet, preferably of weight 20-150 grams, for immersion in the cistern of a lavatory comprises forming a free-flowing particulate mixture consisting essentially of:   (a) from 5 to 90% by weight of a surface active component comprising one or more organic surface active agents, especially anionic or nonionic surface active agents; (b) from 0.5 to 75% by weight of one or more binders selected from clays and, preferably, water-soluble or water-dispersible gel-forming organic polymeric materials, especially cellulose derivatives; (c) from 0 to 20% of one or more dyestuffs or other colouring agents;   (d) from 0 to 35% by weight of a perfume component comprising a solid perfume or a liquid perfume optionally in admixture with a solid absorbent therefor;   (e) a total of from 0 to 75% by weight of;     (i) one or more inert water- soluble fillers;   (ii) one or more water-softening or chelating agents;   (iii) one or more solid water- soluble acids; (iv) one or more inert water- insoluble inorganic or polymeric organic fillers (in an amount of not more than 50% by weight of the mixture). (v) one or more tablet lubricants (in an amount of not more than 30% by weight of the mixture).   (f) from 0 to 20% by weight of one or more germicides, fungicides, and/or chlorine release agents; and compressing the mixture to form a tablet. t
Patent GB-2026391-A (GB)
Title: Image recording method and apparatus therefor
IPC: B41L21/00
Filed: 1979-07-03
Abstract: A recording medium is directed onto a cyclically moving support cylinder 1 and information is recorded on the recording medium as it is sucked onto the support cylinder 1, whereafter upon termination of the recording, the suction force is controlled to permit the recording medium to be discharged out of the circulatory moving path of the support cylinder 1. Recording may be achieved using ink-jet head 2 laterally drivable by shaft 14. <IMAGE>
Patent GB-2028715-A (GB)
Title: Improvements in and relating to assemblies for use as reinforcements and/or energy absorbing purposes
IPC: B29C70/08
Filed: 1979-07-16
Abstract: A flexible reinforcing and/or energy absorbing assembly has first and second flexible members in interfacial contact with one another. The contact produces interfacial action so that increased local stress in one member reduces the interfacial action, transferring stress to the other member which supports the stress over more than the local area reducing the local strain on the other member to avoid the possibility of its breakage. In one form, Figure 2, the assembly 20 has a first member (24) of a rubber layer sandwiched between textile sheets (20, 22) and encapsulating second members (14) of nylon cord or rope. The assembly 20 can be a sheet of material or form an element attachable to sheets of flexible material, e.g. at a joint. The assembly can form a rip-stop to resist the spread of a tear through a sheet of flexible material. In other forms the second members can be of metal, e.g. crinkled strips, or rubber/nylon textile. <IMAGE>