baber/WOPTO huggingface dataset:
Patent GB-1288698-A (GB)
IPC: A47G25/06
Filed: 1971-06-28
Abstract: 1288698 Hooks M O SMITH 28 June 1971 [23 Oct 1970] 30191/71 Heading E2A A hanger construction comprises an elongated channel member 11 having spaced leg sections 11b projecting from a central section 11a and provided with flanges 11c forming therebetween an elongated opening 11d, means, such as an adhesive 14, for securing the central section to a supporting surface, and a hanger element 12 carried by the member 11 and adjustable longitudinally thereof to selected positions. The element 12 includes a head 12a disposed between the sections 11b and slidably engaging the inner surface of the sections and the inner surface of the flanges 11c, a shank portion extending through the opening lid and a resilient member 15, e.g. a rubber washer, movable into frictional engagement with the flanges 11c to effect retention of the element 12 in a selected longitudinal adjustment with respect to the member 11. As shown, the head 12a has a rectangular configuration, but, alternatively, may be circular the shank then having a rectangular cross-section within the opening 11a. In a modification, the member 115 is integral with the shank 112b and is flexed to a concave flange-engaging position as shown in Figure 9.
Patent GB-1295103-A (GB)
IPC: H02P25/08
Filed: 1970-03-26
Abstract: 1295103 Electric motors; control of motors FORD MOTOR CO Ltd (Ford Motor Co) 26 March 1970 14974/70 Headings H2A and H2J In a two-phase reluctance motor similar to the three-phase motor shown in Fig. 1 of Specification 1,240,979, the two windings are energized from respective D.C. sources by a power circuit which allows free-wheeling of the winding 'currents and which feeds the current of each winding to the other D.C. source when that winding reaches the end of its motoring operation, i.e. when the corresponding stator and rotor segments are aligned. The circuit includes commutating thyristors, as shown, or transistors, controlled in dependence on rotor position. Operation of phase winding 20.-Current is passed from D.C. source 80 through thyristor 124 to charge capacitor 122. The charge is reversed by triggering thyristor 128. Thyristor 120 is triggered to pass motoring current through the winding. When the current reaches a predetermined value corresponding to the desired torque, thyristor 120 is switched off by triggering thyristor 124 to discharge the capacitor through the winding. Thyristor 130 is then triggered to allow free-wheeling of the winding current. Capacitor 122 is meanwhile recharged and its charge reversed. At a predetermined winding current value the current is boosted by again discharging the capacitor through the winding. The freewheeling and boosting modes of operation may be repeated as often as desired. When the corresponding rotor and stator segments are aligned, thyristor 130 is kept switched off and the winding current passes through diode 132 to the other D.C. source 82. The other phase winding 26 is then energized in similar manner. The motor may be braked by operating the control circuit while the rotor and stator segments move out of alignment. The motor is reversible.
Patent GB-1296364-A (GB)
IPC: H04N9/68
Filed: 1969-12-12
Abstract: 1296364 Cathode-ray tube circuits RCA CORPORATION 12 Dec 1969 [18 Dec 1968] 60675/69 Heading H4T In a colour television receiver a signal representative of increasing load demands is derived from the (fly-back type) EHT circuit and utilized to vary the gain of the chrominance channel so as to oppose the increasing load demands. As shown, a known colour television receiver is modified by the addition of a resistor 80 connected between the cathode of the colour-burst separator-amplifier 48 and the emitter of transistor 40 (forming an automatic colour control (ACC) circuit 38) the emitter of the latter also being connected to the junction between capacitors 81, 82 which form a voltage divider for the voltage generated across the horizontal efficiency coil 26. During normal operation a keying pulse derived from winding 34 on the horizontal fly-back transformer 20 is effective at the control grid of separator-amplifier 48 to gate the colour-burst from chroma amplifier 50 to the sub-carrier generator 60, 62, 64 the voltage developed at the grid of valve 64 being supplied via resistor 76 to the emitter of ACC transistor 40 which operates when the burst amplitude varies to control the gain of chroma amplifier 50 to maintain the amplitude of the separated burst at a constant value. When, due to conditions caused by changing component values, high temperature &c. the tube 18 attempts to draw an abnormally large beam current the fly-back transformer 20 becomes overloaded and the amplitude of the keying pulses form winding 34 decreases. This results in a decrease in gain of separator-amplifier 48 and the reduced burst amplitude applied to oscillator 64 causes a decrease in the (negative) voltage at the control grid of 64. The emitter of ACC transistor 40 is therefore driven in the positive direction and this results in an increase in the gain of chroma amplifier 50. Additionally, the reduced amplitude of the pulses from the junction of capacitors 40<SP>1</SP>, 42 results in a reduction in the negative voltage developed at the control grid of the valve in the blanker circuit 8 and a further gain increase of chroma amplifier 50 is produced via resistor 80<SP>1</SP>. The effect of both of these gain increases is to make the tube 18 draw even more current from transformer 20 and the resistor 80 and capacitors 81, 82 are scaled to produce a correction or over correction. The operation is as follows. When transformer 20 is overloaded it becomes detuned and the voltage across the efficiency coil 26 increases so that an increase occurs in the voltage applied to the emitter of ACC transistor 40 from the junction of capacitors 81, 82. Also, when the amplitude of the keying pulses from winding 34 is reduced the current through resistor 80 is reduced so that an increase in the emitter circuit occurs and both of these effects result in an increase in emitter current and the voltage at the collector is then effective to reduce the gain of the chroma amplifier 50.
Patent GB-1296589-A (GB)
IPC: B24D3/02
Filed: 1970-11-12
Abstract: 1296589 Abrasive articles NORTON CO 12 Nov 1970 [14 Nov 1969] 53828/70 Heading C4V An abrasive element comprises diamond or cubic boron nitride abrasive grains bonded by a ceramic matrix which includes 23-53% by volume of total matrix of a filler which is graphite, hexagonal boron nitride or molybdenum disulphide or mixtures of these, optionally with up to 50% by volume of filler of a metal powder, the filler having a numerical average particle size of less than 200 microns and the element having less than 15% porosity per volume. The bond may be a devitrified glass containing microcrystalline particles, such as of alumina and silicon carbide.
Patent GB-1296790-A (GB)
IPC: F02M35/14
Filed: 1970-08-21
Abstract: 1296790 Gas filter-silencer INGERSOLL - RAND Co 21 Aug 1970 [17 Nov 1969] 40375/70 Heading F1B [Also in Division B1] In a gas filter-silencer having a longitudinal axis and a plurality of chambers, gas enters through an inlet port 26 and passes via an intermediate chamber 16 and a filter 18 to an inner chamber 14, then by way of tubes 24 to an outer chamber 22 from which it is exhausted.
Patent GB-1297726-A (GB)
IPC: H03K5/15
Filed: 1971-05-28
Abstract: 1297726 Semi-conductor devices INTERNATIONAL BUSINESS MACHINES CORP 28 May 1970 [30 June 1970] 17824/71 Heading H1K [Also in Divisions G4 and H3] The invention relates to a detector of acoustic waves propagating along a piezoelectric line. A single detector L 1A  has a layer 38-1A of a material which may be switched between two states by the piezoelectric field associated with the passage of the acoustic wave. As shown, the detector L 1A  has an interdigitated electrode structure acting as an output transducer for the line and across which is deposited an amorphous semi-conductor material of the type which may be switched by a voltage pulse from a high resistance state to one of low resistance. A standing bias is supplied by source 76-1 so that the small voltage produced by the acoustic wave can trigger the device. The arrangement shown provides coincidence selection of a given detector load 84 from a co-ordinate matrix thereof. Where the loads 84 are output devices such as display lamps (as opposed to memory locations with stored information) the X- and Y-decoders are not needed. Another arrangement (Fig. 4, not shown) makes use of a single acoustic line provided with an input transducer and a single output transducer/detector of the form described, and is provided with conventional circuitry so that information may be stored by recycling. In the arrangements, the pitch (spacing of adjacent limbs) of the electrode structure providing the output transducer associated with each detector is stated to be made equal to one half the wavelength of the piezoelectric surface waves for RF pulses and equal to the product of pulse time width and surface velocity for video pulses.
Patent GB-1304672-A (GB)
IPC: B65B35/26
Filed: 1971-01-29
Abstract: 1304672 Packaging; rotary conveyers AUGUST STORCK GmbH 29 Jan 1971 3452/71 Headings B8A and B8C The pockets 3 of a main rotary or chain conveyer 2 are filled with sweets from supplementary rotary or chain conveyers 10 each containing a different variety, the intermittent movements of, and the spacing of the pockets in, the. conveyers 2 and 10 being so synchronized and arranged that each conveyer 10 fills a particular pattern of pockets in conveyer 2. The feed shoot 13 of each  conveyer 10 is shakened by a vibrator 15. A rim 4 lifts each sweet from conveyer 2 together with a wrapper 5, the wrapped  sweets being stacked together in a rod which is then itself wrapped.
Patent GB-1306063-A (GB)
IPC: G01J3/42
Filed: 1968-12-09
Abstract: 1306063 Photo-electric analysis BP CHEMICALS Ltd 9 March 1970 [9 Dec 1968] 58400/68 Heading G1A In a two path fluid analyzer system in which the paths are chopped sequentially the chopper comprises in each path a crystal capable of passing the beam and in which the plane of polarization can be rotated electrically or magnetically, a polarizing agent capable of passing a beam polarized in a particular manner, and a supply of current or voltage modulated to effect the desired chopping connected to effect the polarization rotation of the crystal. The radiation may be infrared and the crystal may be YIG.
Patent GB-1319457-A (GB)
Title: Holders for internal combustion engine cylinder heads
IPC: B23Q1/54
Filed: 1969-12-03
Abstract: 1319457 Means for adjustably holding a cylinder head W E WASSELL Ltd 5 Oct 1970 [3 Dec 1969] 58945/69 Heading B4W [Also in Division B3] Means for holding a cylinder head comprises members 1 and part 5 clampable together by a collar 7. Means for holding a cylinder head while work being performed upon it comprises a member 1 which may be flanged for attachment to a bench, or may be gripped in a vice and a member 5 with a threaded end 6 which is screwed into a sparking plug hole in the cylinder head, the members 1 and 5 having a ball-socket connection 3, 4 clampable in position by a collar 7.
Patent GB-1321236-A (GB)
Title: Process for pile fabrics
IPC: D06C29/00
Filed: 1969-11-20
Abstract: 1321236 Finishing fabrics COURTAULDS Ltd 19 Nov 1970 [20 Nov 1969] 56762/69 Heading D1S The erectness and uniformity of the pile of a pile fabric comprising thermoplastic pile yarns projecting from one face of a backing fabric is improved by supporting the fabric with the pile facing generally downwards, feeding a liquid at a temperature at or greater than the softening temperature of the thermoplastic pile yarns onto the non-pile face of the backing fabric and allowing the liquid to drain through the pile and subsequently cooling the pile yarns to a temperature below their softening temperature. The pile may be mechanically worked during the treatment with the liquid, e.g. by drawing it over a scraper bar or by beating or brushing either the pile face or the non-pile face. The treatment liquid may comprise a spent dye liquor which has previously been used to dye the pile fabric and is then fed to a distributor, e.g. a spray nozzle, sparge pipes or an over-flow weir. The cooling step may be performed by quenching with cold water. In an Example, a carpet having acrylic pile yarns is treated with a liquid at 95‹C-100‹C.
Patent GB-1323979-A (GB)
Title: Three-terminal capacitor
IPC: H01G4/005
Filed: 1972-01-17
Abstract: 1323979 Capacitors M C ROBINSON 17 Jan 1972 2166/72 Heading H1M A three-terminal capacitor suitable for use as a reference capacitor comprises electrodes 13, 14 separated by two insulating rings 16, 17 with a third annular electrode 18 interposed between them, electrode 18 being formed by depositing conductive material on a flat surface of one or both rings 16, 17 and being electrically connected by load 21 to shield 22 enclosing the assembly. As shown electrodes 13, 14 comprise plated deposits of e.g. gold on slabs 11,12 which may be quartz, glass, iron or brass, conductive paths being provided to leads 24, 25 when the slabs are insulating. Rings 16, 17 are preferably quartz. The electrically significant dimensions are those of the rings, but the capacitance between electrodes 13, 14 is independent of the dielectric constant of the ring material. The space between, electrodes 13, 14 may be evacuated or gas-filled. Shield 22, which also shields leads 24, 25 from each other, may comprise the can enclosing the assembly, free space being filled with thermally insulating powder or foam rubber. The capcitor may be designed to have capacitance about 1% less than the required value, and the remaining capacitance be provided by a small adjustable three-terminal capacitor.
Patent GB-1328240-A (GB)
Title: Carpet and a method of manufacture thereof
IPC: D05C17/02
Filed: 1970-12-31
Abstract: 1328240 Pile fabrics; tufting SHORELL Ltd 9 Dec 1971 [31 Dec 1970] 62093/70 Headings DIG and D1K A method of forming a tufted pile fabric comprises inserting straight tufts of multifilament yarn in a base layer 2, allowing or causing the ends of filaments 4 on the back of the base layer to splay, and applying an adhesive to back. The ends of the filaments may be caused to splay by the resiliency of the base layer which forms a neck 6 in the yarn tuft, or the filaments may have a heat set crimp which is released by heating tufts after tufting (Fig. 4, not shown). The base layer 2 may be a non-woven sheet of slit polypropylene and the pile yarn may be of thermoplastic, e.g. nylon filaments. Tufting. The tufts may be inserted by a hollow needle 10 which subjects the ends of the tufts to a blast of air as it withdraws to splay them, Fig. 2. Alternatively, Fig. 3, a ram 15 may pass through the needle 13 as it rises and splay the, end of the tuft, which is located by a stop 14.
Patent GB-1330510-A (GB)
Title: Synthetic paper and process for producing the same
IPC: C08L23/02
Filed: 1970-12-23
Abstract: 1330510 Paper-like films OJI YUKA GOSEISHI LENKYUJO KK 23 Dec 1970 [28 Dec 1969] 61021/70 Heading B5B Paper-like opaque films having a void percentage of more than 10% and comprising a first synthetic resin matrix having dispersed therein a reticulated structure of fibrillated fibres of a second synthetic resin and up to 60% by weight of a conventional inorganic filler (e.g. kaolin, diatomaceous earth, titanium dioxide) may be prepared by a process which involves forming an unstretched film of a homogeneous mixture or microdisperse system of at least two thermoplastic resins having melting points or glass transition temperatures differing by more than 15‹ C. and up to 60% by weight of an inorganic filler material and drawing the film along at least one of its axes at a temperature suitable for drawing the first synthetic resin (matrix) but below the optimum temperature range for drawing the second higher melting resin so that the second synthetic resin is drawn under strained conditions and fibrillates into a fibrous structure within the matrix material, voids being produced in the film by a combination of this fibrillation and the effect of the filler material. The void percentage is defiined as the difference between the density of the film material before and after stretching expressed as a percentage of the film density before stretching. The films of the invention may be used as synthetic paper on their own or they may be laminated to a plurality of conventional synthetic resin films, cellulose paper films or metal films, the lamination being effected by conventional bonding techniques or by simultaneous extrusion of the paper-like film material with the lining material. In examples films are produced having void percentages of up to 59À5% by extrusion of mixtures in which the first synthetic resin or matrix material is polyethylene, polyethylene and polystyrene, polystyrene and ethylene/ vinyl acetate copolymer, polybutene-1 and ethylene/vinyl acetate copolymer and the second synthetic resin or higher melting material is isotactic polypropylene, or polyethylene. The films are biaxially oriented at temperatures within the range specified, cooled under tension and tested for their paper-like characteristics.
Patent GB-1332683-A (GB)
Title: Production of composite fabrics
IPC: B32B27/00
Filed: 1970-10-27
Abstract: 1332683 Coated fabric CARRINGTON & DEWHURST Ltd 26 Oct 1971 [27 Oct 1970] 50939/70 Heading B2E A composite fabric is produced by bonding a foam layer to one side of a fabric backing, bonding a polyurethane film to the opposite side of the foam layer and applying an elastomeric lacquer to the film to colour the surface of the composite fabric. As shown in the drawing a composite fabric A is produced by feeding fabric web B and a layer of foamed polyurethane through the nip between roller 1 and cylinder 2, the fabric web and foam plastics being bonded together by heat from a flame 3 or by an adhesive. Film D is bonded to the opposite side of the plastics material C by heat from the flame 5 or by an adhesive and the surface of the film D is then coloured by applying a coating of an elastomeric lacquer by spraying, roller or reverse roller coating, or by direct spreading or printing. Preferably the lacquer is polyurethane based. The fabric may be woven, knitted, random web cotton, wool, nylon. The product may be used for the manufacture of coats, furnishing fabrics, handbags, luggage, footwear.
Patent GB-1334043-A (GB)
Title: Preparation of lithographic plates
IPC: G03F7/20
Filed: 1970-11-03
Abstract: 1334043 Making lithographic plates; bending PROTOCOL ENG Ltd 3 Nov 1970 [3 Nov 1969] 53863/69 Headings B3A and B3E A lithographic plate after being mounted on a former, exposed, and developed, is fed to an edge forming apparatus where at least one of the edges 26, Fig. 6, of the plate is turned over a respective edge of the former. The edge-formed plate is then fed to a printing drum. The edgeforming apparatus includes a former 11 (Fig. 3, in plan, and Fig. 4) on which the initially flat lithographic plate is held. Holes 8 near the plate edges co-operate with pins 16, Fig. 4, to locate the plate. The former 11 is movable longitudinally between horizontal forming rollers 18 and then vertical forming rollers 19 to turn over the plate edges. The pins 16 are withdrawn from the holes in the plate, when the former starts to move, by a cam-operated lever 16a. The former stops when abutments 21 and 22 (Fig. 3) contact each other, this contact causing withdrawal of wedges 23, to allow release of the turned-over edges of the plate from the former.
Patent GB-1336594-A (GB)
Title: Sieve screens
IPC: B07B1/46
Filed: 1971-08-31
Abstract: 1336594 Sieves DUNLOP HOLDINGS Ltd 31 Aug 1971 [28 Aug 1970] 41458/70 Headings B1D and B2H A sieve comprises two interconnected sets of parallel elements forming the warp and weft of a mesh, each element comprising a core of plastics material covered at least in part by a layer of elastomeric material.  In Fig. 1, the sieve is constructed by weaving elements 1, 2. The elements are produced by extruding polypropylene material through a circular die to form rods 3 which are passed through a second die in which a layer 4 of an elastomer, e.g. natural or synthetic rubber, is extruded over the rods 3 and thereafter cured. Each composite rod is then crimped to assist weaving and to obtain a mechanical interlock between the members. Alternatively, crimping and weaving take place before curing which bonds the elastomeric cover at the points of contact 5. A number of different sections for the core are illustrated. In a modification, Fig. 10 (not shown), composite rod elements of rectangular section are overlapped and bonded together at the cross-over points. In Fig. 12, composite rod warp elements 10 of rectangular section are provided with apertures 11 to accommodate removable weft elements 12 which may be rectangular or circular in section. This construction allows the aperture size of the sieve to be varied. In Fig. 14 the warp elements are of triangular section. The apertures may be formed by machining or drilling through the cured composite element or through the extruded polypropylene rod which is subsequently covered with the elastomer, the apertures being formed by cutting away the uncured elastomer and the covering being finally cured. In Fig. 15, rectangular warp elements 14 covered on the top and sides by elastomer are provided with suitably shaped slots in the upper surface to receive weft elements 16 which may be of different cross-sections and which have an elastomer covering on appropriate surfaces.
Patent GC-0000260-A (GC)
Title: Organometal catalyst compositions
Inventor: MCDANIEL MAX P
IPC: C08F10/00
Filed: 2000-09-27
Granted: 2006-11-01
Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.
Patent ID-30090-A (ID)
Inventor: GAUTHIER MAURICE
IPC: D21F1/00
Filed: 2000-02-14
Abstract: A woven strip comprising an asymmetrical weave of weft and warp yarns having symmetrical re-weaving zones extending from opposite ends thereof, in which the end warp yarns form a loop to accommodate a restraining rod. The woven strips provide fabrics for use in paper making machines and have the advantage of avoiding excess pressure during operation of the machine thereby reducing marking of the paper and wearing of the strips.
Patent ID-30429-A (ID)
Inventor: BEENTJES P C
IPC: C08J5/18
Filed: 2000-03-09
Abstract: The invention relates to a process for producing a plastic web for coating a metal substrate, in which the plastic used is polyester. According to the invention, the plastic web is produced by extruding a mixture of various polyesters. The invention also relates to a laminate comprising a metal substrate and a plastic layer, the plastic layer comprising an adhesive layer which substantially comprises a plastic web produced according to the method according to the invention. The invention also relates to products and components produced from this laminate.
Patent IL-108406-A (IL)
Title: STOL/VTOL free wing aircraft with articulated tail boom
Inventor: RUTAN ELBERT L
IPC: B64C29/02
Filed: 1994-01-23
Abstract: A VTOL/STOL free wing aircraft includes a free wing having wings on opposite sides of a fuselage connected to one another respectively adjacent fixed wing inboard or center root sections fixedly attached to the fuselage for free rotation about a spanwise access. Horizontal and vertical tail surfaces are located at the rear end of a boom assembly rotatably connected to the fuselage. A gearing or screw rod arrangement controlled by the pilot or remote control operator selectively relatively pivots the fuselage in relation to the tail boom assembly to enable the fuselage to assume a tilted or nose up configuration to enable VTOL/STOL flight.