baber/WOPTO huggingface dataset:
Patent GB-2052938-A (GB)
Title: Blades for horticultural or agricultural cutting machines
IPC: A01D34/73
Filed: 1979-07-16
Abstract: A rotary blade for agricultural or horticultural cutting machines comprises a disc-like body (1) of flexible, high molecular weight, elastomeric material having around its periphery a plurality of projecting blade portions (2). A ring of shock-absorbing holes (4) concentric with the disc-axis are disposed in the main body (1). Radial elongation of the disc is prevented by strengthening at least the core portion by for example an iron core (5) or embedded fibres (19), Fig. 8 (not shown). <IMAGE>
Patent GB-2055378-A (GB)
Title: Modified epoxy resin
IPC: C08G18/69
Filed: 1979-07-19
Abstract: A reaction product of an epoxy group-containing compound with a carboxyl group-containing butadiene/acrylonitrile copolymer is simultaneously or separately reacted with an amino group-containing compound and a fully or a partially blocked isocyanato group- containing compound. A composition comprising the resultant resin, or a composition comprising (1) a product obtained by reacting a reaction product of an epoxy group-containing compound butadiene/acrylonitrile copolymer with an amino group-containing compound and (2) a fully or partially blocked isocyanato group-containing compound is useful for cathodical electrodeposition.
Patent GB-2056195-A (GB)
Title: High frequency converter having starter
IPC: H02M7/537
Filed: 1979-07-19
Abstract: The converter includes direct voltage (DV) input supply terminals providing a centre-tapped (19) DV supply, a pair of solid-state switching devices (20, 21) connected in series across the supply terminals, a load circuit including a supersonic frequency transformer (30), an oscillatory circuit including at least one capacitor (78, 79), and an oscillatory inductor unit (51, 52) including at least one inductor connected to the primary winding (37) of the transformer in a circuit between the centre-tapping of the supply and a point between the switching devices, and synchronising means synchronising the operation of the switching devices to the oscillation of the oscillatory circuit to allow the circuit to oscillate freely for part of a cycle to transfer energy from the inductor to the capacitor, to charge the latter to a certain condition in which the voltage across the inductor is substantial and that across one of the switching devices is negligable, and only then actuate the said switching device to connect the inductor across half of the DV supply, whereupon the inductor receives and stores energy from the said supply. A saturable starting inductor (75) in parallel with a free-wheeling diode (76) and a resistor (77), is connected between and in series with the switching devices. The converter may be used for charging a battery (45). <IMAGE>
Patent GB-2044569-A (GB)
Title: Surface acoustic wave device having asymmetrical amplitude characteristics
IPC: H03H3/08
Filed: 1979-11-13
Abstract: A surface acoustic wave device having an asymmetrical filter characteristic comprises a first interdigital transducer 2 for converting an electric signal to a surface acoustic wave signal, a medium 1 for propagation of the surface acoustic wave signal, and a second interdigital transducer 4 for converting the surface acoustic wave signal to an electric signal. At least one of the transducers is apodized differently in its two halves as defined by a centre line A-A' to form two interdigital electrode patterns which are separately determined to correspond to two functions out of phase by  pi /2 and which are derived from a desired asymmetrical amplitude characteristic by Fourier transform. The two functions are synthesized in the single interdigital transducer 2 by forming therein two sets of electrode fingers having overlap envelopes 2', 2'' corresponding to the two functions, respectively. An electroconductive member 5 is provided in the surface acoustic wave propagation path such that a surface acoustic wave excited by one set of electrode fingers is out of phase by  pi /2 relative to a surface acoustic wave excited by the other set. <IMAGE>
Patent GB-2045574-A (GB)
Title: Video movement detection
IPC: H04N5/14
Filed: 1980-03-04
Abstract: A video movement detector suitable for detecting picture movement and/or noise on a video signal comprises a first detector 26 for detecting differences frame by frame on a portion of picture having a plurality of picture points from more than one line, a second detector 27 for detecting differences frame by frame from a portion of picture having a plurality of picture points from the same line, and third detector 28 for detecting differences frame by frame from a portion of a picture comprising a single picture point. Movement is determined to have taken place when the differences measured by the respective detectors exceed predetermined thresholds. The selected thresholds are typically of different values to provide the capability of distinguishing between noise and movement in varying conditions. The movement detection arrangement can be used to control picture manipulation during processing such as in a noise reduction system, standards conversion or picture size change arrangements. <IMAGE>
Patent GB-2055572-A (GB)
Title: Adjustable support assembly
IPC: D06F57/02
Filed: 1980-06-13
Abstract: The adjustable support assembly 1 has an upright hollow member 2 in which is located a pulley block 6 for movement longitudinally of the member 2. The pulley block 6 is raised and lowered in use by cord means 14 which is reeved around the pulley block, around a wheel at the upper end of the member 2 and around a winding wheel in housing 15. A side arm 3 is suspended by a fixed cord 27 from the upright member 2 and is pivotally connected at a lower end to the pulley block 6 so that the inclination of the side arm is altered as it is moved with the pulley block longitudinally of the member 2. A drag cord 28 attached to the pulley block via fixed pulley 30 pulls out article support receivers 4 along the side arm as the side arm is raised. When the article support receivers 4 are spaced along the side arm, they can be used to hang clothes, for example. <IMAGE>
Patent GB-2053036-A (GB)
Title: Method and apparatus for the production of exhaust pipes for automotive vehicles
IPC: B21D53/88
Filed: 1980-06-30
Abstract: A method for the continuous production of exhaust pipes for automotive vehicles comprises the steps of continuously withdrawing an elongated substantially flat metal strip (2) from a coil (1) and subsequently bending and forming the moving strip into a longitudinally slitted tube strand (7). The opposite faces of the slitted pipe strand are then welded together and subsequently the pipe strand, while still moving, is severed into pipe sections (19) of predetermined length and the pipe sections are then transferred to at least one bending apparatus (28, 29) for bending the pipe sections into exhaust pipes with predetermined bends. <IMAGE>
Patent GB-2058119-A (GB)
Title: Solar heating system
IPC: C09K5/10
Filed: 1980-08-05
Abstract: A solar heating system having a heat absorbing element, a heat discharging element and heat transfer fluid which transports heat from one element to the other. The heat transfer fluid comprises water and an organosiloxane-oxyalkylene copolymer which is water-soluble through at least a part of the operating temperature range of the heat absorbing element.
Patent GB-2082297-A (GB)
Title: Apparatus and Method for Compacting Degassing and Carbonizing Carbonaceous Agglomerates
IPC: C10B53/08
Filed: 1980-08-12
Abstract: An inclined rotary kiln 10 is rotatably mounted by rings 14, 16 on bearings 18, 20 and driven by motor 28 through pinion 30 and annular gear 26. Carbonaceous agglomerate is fed to the upper end of the kiln through inlet 34 and heating medium in the form of a finely divided solid is fed to the middle of the kiln 10 through inlet 36 from hopper 60. At the lower end is a screen 44 which allows the finely divided material to pass into collector 48 whereas the compacted, degassed and carbonised agglomerate passes over to outlet 46 and into receiver 50. Gases for processing or use as fuel are withdrawn as required via line 56. <IMAGE>
Patent GB-2084227-A (GB)
Title: Culvert retaining wall
IPC: E01F5/00
Filed: 1980-09-17
Abstract: This invention relates to culvert retaining wall assemblies. In an earlier form of such assembly, made up from pre-cast concrete elements, the slabs of concrete become rather large with large pipe diameters. In accordance with the invention L shaped supporting legs 5 have horizontal arms 6 secured to a foundation 3 and vertical arms 7 to locate the wall panels. The arms 7 are of T-section so as to provide support for intermediate panels 16 and side panels 14 by means of rebates 17 and 15 respectively. Refer to sole figure. <IMAGE>
Patent GB-2061222-A (GB)
Title: A vehicle with load lifting apparatus
IPC: B66F9/06
Filed: 1980-10-01
Abstract: A front wheel drive motor road vehicle has lifting forks E arranged between the rear wheels B, and extending from in front of the rear axes to behind them, the forks being supported on a hollow upright 19 which can be moved up and down within a hollow member 18, which in turn is mounted on the vehicle for pivotal movement in a vertical plane. <IMAGE>
Patent GB-2085430-A (GB)
Title: Phenol production
IPC: C07C45/53
Filed: 1980-10-10
Abstract: Steam cracked naphtha is upgraded to phenol and octane improvers such as ketones and ethers with reduced consumption of energy and hydrogen. A C5/C6 cut is mildly hydrogenated to convert diolefins to monoolefins and the formed mixture of aromatics and monoolefins is subjected directly to Friedel-Craft alkylation to yield mixed alkyl benzenes which are then oxidised.
Patent GB-2090524-A (GB)
Title: A display package of disposable razors
IPC: B65D73/00
Filed: 1981-01-06
Abstract: A display package of disposable razors is formed from (i); a substantially rectangular card, by slitting to form a finger (14) in the centre of the card, and folding the card to channel shape, adhering the finger (14) to a panel (25) to maintain the channel shape, and (ii); an array of, for example, five razors with their handles in side-by-side contact and their blade units overlapping one another, by fitting the array within the channel to rest against the finger 14. <IMAGE>
Patent GB-2075761-A (GB)
Title: A brush holder for generators on motor vehicles
IPC: H02K11/04
Filed: 1981-03-18
Abstract: A brush holder for motor vehicle generators comprises a brush housing (45) and fixed contacts (100, 110, 120) for associated stationary contacts (Figure 5 not shown) on a rectifier unit within the generator housing. The fixed contacts are connected to terminals (94, 95, 96) on voltage regulator (90) incorporated in the brush holder or are connected to a connecting device for a remote voltage regulator. At least one contact (110, 120) is knife type which, during mounting of the brush holder, is pivoted into a contact element on the rectifier unit. The arrangement facilitates incorporation of more fixed contacts in a given space. Additional fixed contact (110) can serve to insulate both poles of the voltage regulator (90). Additional fixed contact (120) may connect the positive terminal of the battery to the voltage regulator (90) (battery sensing). Cooling pate (92) has lugs (93) dissipating the heat to the surroundings. <IMAGE>
Patent GB-2098444-A (GB)
Title: Device for protecting plants
IPC: A01G13/02
Filed: 1981-05-20
Abstract: A device for protecting plants which comprises a pair of covers or layers of material (1) adapted to rest upon the ground and constructed to interlock together to form a substantially rectangular device as a whole, wherein along the line of interconnection (3) between the two halves of material, preferably at the centre of the device, is a portion (4) having a plurality of slots (5) or lines of weakness capable of being cut to form a hole to receive the stem of a plant. Where the plant is to be supported during its growth by means of a stake, there are provided a pair of holes (4a, 4b), i.e. one for the plant and one for the stake; preferably one of the pair of holes is provided in each of the halves of the device, with a further slot (6) extending between the holes. <IMAGE>
Patent GB-2083002-A (GB)
Title: Process and Apparatus for Wrapping Loads in Stretch Film
IPC: A01F15/07
Filed: 1981-09-07
Abstract: An apparatus for stretching a web of plastics film above its yield point before wrapping it around a load includes stretching means and force relieving means. In one embodiment the stretching means comprises a roller assembly having two interconnected rollers (34, 36) rotatable by the web as it is drawn off a film supply (20) upon being wrapped around a load (200) on a turntable (202); the rollers being interconnected so that an upstream one (34) of which rotates slower than the other (36) to produce film elongation between the rollers. The force on the film between the roller assembly and the load (200) is relieved by the action of a positive constant torque device driving the rollers (34, 36), so that the film elongation between the roller assembly and the load is equal to or less than the elongation incurred between the rollers. Since the film has been stretched above its yield point, the film retains a high degree of pre- stretch elongation despite relieving stress from the film between the roller assembly and the load. In another embodiment the web is stretched by stationary bars (71 to 73) and partially drawn around a roller (36) powered by a positive constant torque device. <IMAGE>
Patent GB-2152207-A (GB)
Title: Optical interferometer
Inventor: PUECH CLAUDE
IPC: G01C19/72
Filed: 1981-11-03
Abstract: An interferometer device intended to measure a non-reciprocal phase shift undergone by rays passing in opposite directions around a ring-shaped waveguide 2 contains electrically controlled means for phase modulation which act on the rays. The signal from detector D' is passed to a synchronous amplifier 20, piloted by an oscillator 21 of frequency 1/2T (T being the time for a ray to pass through the ring) delivering a periodic signal  phi 1; and the amplifier output feeds the slope control of a saw-tooth wave generator 22, whose resonant frequency is saved to the non-reciprocal phase shift. The signal  phi 1, and the saw-tooth generator output  phi 2 are superimposed to feed a phase modulator  phi . The light source S, separation and mixing means M,M' and detectors D,D' may be part of an integrated device including coupled wave-guides and electrodes to receive the control signal and so constitute an electro- optical phase modulator. …<IMAGE>…
Patent GB-2090210-A (GB)
Title: Aircraft
IPC: B64D33/04
Filed: 1981-12-08
Abstract: An aircraft includes an aircraft body portion 10, a wing portion 14 attached to the body portion by means of an intermediate portion 15 whose thickness diminishes outboard of the body portion to blend with the wing portion. The intermediate portion 15 comprises upper and lower surfaces diverging rearwardly from a leading region to a region of maximum divergence. The aft portion of the intermediate region is cut away to receive propulsion jet outlet means 16 which is shaped to be within a rearward projection of the region of maximum divergence of the intermediate portion. The propulsion jet outlet means 16 may be directed downwardly to generate a lift component. Fingers 19 seal the gap between the region of maximum divergence and the movable nozzle 16. <IMAGE>
Patent GB-2089872-A (GB)
Title: A portable window cover assembly
IPC: E06B9/52
Filed: 1981-12-21
Abstract: A portable window cover assembly (11) having a flexible integrally formed magnetized frame (12) for selective sealable mounting over windows of vehicle or building structures. The window cover member (13) attached to and co-extensive with the magnetized frame (12) can selectively consist of flexible screen material, or of rigid, semi-rigid or flexible solid sheet materials, such as glass, flexible clear or solar shade plastic, one-way mirror material, canvas and the like. Associated integrally formed flexible magnetized and adhesive backed mounting strips or frames (16) are provided for use in selectively sealably mounting the portable window cover assembly (11) on surfaces which are not magnetically attractive such as wood, aluminium, plastic and the like. <IMAGE>
Patent GB-2100334-A (GB)
Title: Clamping device
IPC: F02M61/14
Filed: 1982-04-20
Abstract: A clamping device 10 for retaining a fuel injection nozzle 12 within a bore 11 of an engine comprises a channel section having a base wall 20 and side walls 21. The base wall 20 is provided with an aperture to receive the nozzle and pressure pieces 18 which engage flats 16A formed on the nozzle body. The pressure pieces 18 are flat and are formed during the formation of the aperture. <IMAGE>
Patent GB-2119835-A (GB)
Title: Ice hazard warning sign
Inventor: HARRELL CARL PATRICK
IPC: G08G1/09
Filed: 1982-04-21
Abstract: The invention is desired to give an indication to motorists when ambient conditions are such as could lead to the formation of ice. A coloured liquid having high expansion and low freezing point characteristic is used to mask a highly reflective and luminous surface. The liquid is sealed in a vessel so shaped to accommodate its expansion over the operating temperature. The vessel is designed so that as the temperature approaches freezing a noticeable drop in the level of the liquid unmasks a reflective surface. In the preferred form the vessel is mounted in a housing having a warning message cut out of its front panel. The position of the warning message is such that when the temperature approaches freezing point the accompanying drop in liquid level exposes the reflective surface thereby defining the cut out message. <IMAGE>
Patent GB-2101974-A (GB)
Title: Sheet folding apparatus
Inventor: SEHAN KURT
IPC: B41F13/56
Filed: 1982-06-10
Abstract: Sheet folding apparatus for a rotary printing machine, comprises a knife cylinder (1), a groove-collecting cylinder (2) and a folding blade cylinder (3). The cylinder (1) has one or more cutting knives (9) co-operating with cutting barn (11) uniformly spaced around the circumference of the cylinder (2) and each associated with a needle row (19). The cylinder (2) is also provided centrally between each of the bars (11) with a folding knife (12), which co-operates with one of a plurality of folding blades (13) uniformly spaced around the circumference of the cylinder (3). The bars (11) of the cylinder (2) can be replaced by cutting knives (19) and the needle rows (10) can be optionally brought into operation. The cylinder (1) additionally carries a cutting bar (18) associated with a needle row (17) which can optionally be brought into operation, and the cylinder can be rotated relative to its drive through the angle included by the knife (9) and adjacent bar (18). A spur-collecting cylinder (4) is associated with the cylinder (1) and has cutting bars (20) each associated with a spur needle row (21) and a stripper (22). Delivery devices (5, 6 and 7, 8) are disposed downstream of cylinders (3) and (4), respectively. <IMAGE>
Patent GB-2103082-A (GB)
Title: Display rack
Inventor: BRUGEASSOU MARTINE
IPC: A47F5/08
Filed: 1982-06-21
Abstract: A rack for the display of groups of differently priced articles in a store comprises an upright stand (1) with several cantilevered support bars (2) projecting generally horizontally therefrom, each bar passing through apertures (8) in tabs (7) of packages (6) of a particular group of articles suspended therefrom, the bars having free ends (3) with exposed faces (4) bearing indicia which identify the articles or give their prices, these faces being of distinctive configuration substantially complementary to the respective tab apertures (8) so as to prevent misplacement of an article to be repositioned on the rack after removal therefrom. The distinctive faces (4) may be part of enlargements at the ends of the bars (2). Alternatively, the bars (2) may be of constant cross-section corresponding to this configuration and be formed with a front portion somewhat bent up to hold packages thereon. <IMAGE>
Patent GB-2107123-A (GB)
Title: Electrical detector of jams for use in an electric slide door assembly
Inventor: KAWAKITA YOSHIHIRO
IPC: H01H13/18
Filed: 1982-07-21
Abstract: A jam detector for use in an electrically operated slide door assembly comprises a sensor bar 8 supported for movement between projected and retracted positions in a direction transversely of the direction of movement of a door 5 and normally biased to assume the projected position with one side of the bar 8 spaced a minimum distance from the door 5, and at least one sensor e.g. a switch 11 for generating an electrical signal in response to the displacement of the sensor bar 8 towards the retracted position as a result of jamming of an object in between the sensor bar 8 and the door 5. The signal so generated may be used to reverse the motor to close the door 5 and/or to provide a visual and/or audio indication of the occurrence of the jam. <IMAGE>
Patent GB-2105017-A (GB)
Title: A boiler element with heat exchanging fins of aerodynamic cross-section
Inventor: FERROLI TREDICESIMO LUCIANO
IPC: F24H1/32
Filed: 1982-08-04
Abstract: A polycombustible cast iron boiler element, through at least part of which is to be run water to be heated, is provided with fins 7 on at least one side or face thereof. The fins are of aerodynamic cross- section, preferably lenticular, to provide low resistance to the flow of combustion products and to ensure that the combustion products flow over substantially the entire surface of the fins. <IMAGE>
Patent GB-2130024-A (GB)
Title: A transformer bobbin and method of producing the transformer bobbin
Inventor: TURNBER TERENCE NORMAN
IPC: H01F41/10
Filed: 1982-11-08
Abstract: A transformer bobbin (2) having at least one self-locking terminal pin (4), the terminal pin (4) being self-locking by being bent through substantially 90 DEG  in two different planes which are at substantially 90 DEG  to each other. A sequence of operations in which a bobbin receives the end of wires for subsequent in situ machining into the required form is disclosed. Bending operations lock the terminal to the bobbin. <IMAGE>
Patent GB-2115863-A (GB)
Title: A carriageway duct or manhole access cover
Inventor: DAVIES WILFRED ERIC
IPC: E02D29/14
Filed: 1983-02-08
Abstract: A carriageway duct or manhole access cover comprises a body member formed by a metal sheet pressed to form a dished member (1) having a base portion (2) and upwardly directed edge portions (3, 4, 5, 6), the dished area having an infill of concrete (17) and lifting-key sockets (8), (15) of welded sheet metal at opposed ends. The concrete infill is reinforced by wire mesh. The access cover is supported by a frame structure formed by angle members welded together at their ends. <IMAGE>
Patent GB-2137212-A (GB)
Title: Preparation of tackified SBR polymer adhesive dispersions
Inventor: AIRLIE CHARLES DAVID
IPC: C08F236/10
Filed: 1983-03-22
Abstract: A tackified SBR polymer dispersion is prepared by co-polymerising styrene and butadiene (optionally with a third monomer), in the presence of a tackifier resin or rosin derivative, in a single step process and in the presence of an aqueous solution of an emulsifier and a polymerisation initiator.
Patent GB-2139982-A (GB)
Title: Load handling apparatus
Inventor: COOK KENNETH
IPC: B60P1/52
Filed: 1983-05-16
Abstract: The invention relates to load handling apparatus 1 comprising a static surface 2 such that the load carrying floor of a vehicle and a movable skate 3 adapted to carry a load 2 to a desired position on the surface and being captive on the surface at all times, so that the skate 3 can move to and fro over the surface 2 but cannot be separated therefrom. The skate 3 is supported in a well and sits on rotatable members 9 which can be raised or lowered by an air bag 12 to make the skate "live" or "dead". The skate is held captive by the interengagement of projections 4, 5. <IMAGE>