baber/WOPTO huggingface dataset:
Patent GB-2015895-A (GB)
Title: Vibratory Endless Screen Belt
IPC: B07B1/10
Filed: 1978-06-15
Abstract: In an apparatus for the size grading of root crops, for example potatoes, a circulating endless screen belt 20 runs in a machine frame 10 and is guided over an horizontally running portion 21. The material of the belt is soft and the horizontally running portion of it has a vibration applied to it by a vibrating device 55, 155, 56. <IMAGE>
Patent GB-2027522-A (GB)
Title: Fuel stokers for furnaces
IPC: F23H11/00
Filed: 1978-08-08
Abstract: A coking type stoker (1) incorporates a coking plate (10) located at the front part of the stoker, and a travelling or chain grate (12) extending at least in part beneath the coking plate, and the coking plate being adapted in use to retain incandescent fuel thereon. The coking plate may be movable (e.g. reciprocated) independently of the grate and said movement may be synchronized with the motion of the grate (12). A fuel feed mechanism (e.g. a ram 6) is synchronized with the movement of the coking plate to automatically replenish the fuel thereon. <IMAGE>
Patent GB-2009118-A (GB)
Title: Recovery of alumina
IPC: C01F7/22
Filed: 1978-09-14
Abstract: A process for the production of alumina from siliceous minerals containing substantial quantities of combined aluminium and calcium comprises the steps of treating the finely divided mineral with a hot acid liquor containing chloride, fluoride and calcium ions to extract alumina values from the mineral; recovering aluminium chloride from the liquid extract; recycling one fraction of the spent extract to the mineral extraction stage: and treating another fraction of the spent extract to regenerate hydrogen chloride gas for re-use in the process.
Patent GB-2004872-A (GB)
Title: Dibenzocycloheptenimines
IPC: C07D295/096
Filed: 1978-09-19
Abstract: This invention provides 5-substituted- 10,11-dihydro-5H-dibenzo[a, d]cyclohepten-5,10-imines and their salts, methods of preparing such compounds and pharmaceutical compositions containing them. The free-base forms have the formula   <IMAGE> where R is hydrogen; alkyl, alkenyl, phenylalkyl, halophenylalkyl, alkylphenylalkyl, cycloalkyl, cycloalkylalkyl or dialkylaminoalkyl, R<1> is hydrogen, alkyl, alkenyl, phenylalkyl, cycloalkyl or cycloalkylalkyl, CH2R<2> is alkyl, alkenyl, phenylalkyl, cycloalkylalkyl, dialkylaminoalkyl or hydroxyalkyl, and R<3> and R<4> are H, halogen, alkoxy, CF3S-, -CN, -COOH or -OH and are useful as antianxiety agents, muscle relaxants and in the treatment of extrapyramidal disorders such as in Parkinson's disease.
Patent GB-2013771-A (GB)
Title: A rail guide for a vehicle seat
IPC: B60N2/90
Filed: 1979-01-19
Abstract: A rail guide for a vehicle seat, comprising a stationary floor rail 1 and a seat rail 2 which is parallel to and displaceable along the floor rail. Each rail includes a J-shaped portion, the two J-shaped portions interengaging with each other. A locking member 4 having a tooth is carried by the slide rail swivellably at right angles to the direction of displacement of the seat rail. The shorter arm of the J-shaped portion of the floor rail is provided with a row of recesses and the two arms of the J-shaped portion of the seat rail, which are parallel to the said shorter arm, are provided each with a recess for the tooth. The locking member is biassed by a spring into a locked position in which the tooth passes through three aligned recesses in the said three arms, thereby preventing movement of the seat rail relative to the floor rail. The tooth may be withdrawn to an unlocked position by a hand lever. <IMAGE>
Patent GB-2049769-A (GB)
Title: Patterned Louvre Blind
IPC: E06B9/386
Filed: 1979-02-02
Abstract: A louvre blind, particularly one having strips suspended to turn in unison about their vertical axes, is made from stock material of plain fabric each strip of which, after cutting from the stock, is individually printed with a decorative pattern centralised and aligned so as to give the effect of a continuous decoration across the blind. <IMAGE>
Patent GB-2042458-A (GB)
Title: Palletizing apparatus
IPC: B65G57/24
Filed: 1979-02-27
Abstract: An apparatus for loading pallets with goods, comprising a frame 1 provided with a goods supplying section 2, preferably provided with transporting rollers between which the bar- or rod-shaped supporting elements of a loading member 3 may be moved to lift a layer of goods to be loaded 5 from the goods supply section 2, moving this layer sideways to above a loading section 4 and lowering the layer upon a pallet placed upon the loading section 4, wherein the loading section 4 comprises a plurality of pallet receiving members, each of which may selectively be brought into the pallet loading position by moving and positioning the loading section 4. The loading section 4 may be formed by a table rotatable about a vertical axis 6, or by a linearly movable carriage or slide (not shown). <IMAGE>
Patent GB-2024136-A (GB)
Title: Improvements in or relating to capsules for pneumatic conveyor systems
IPC: B65G51/06
Filed: 1979-04-17
Abstract: A capsule 2 for carrying loads along a pipeline 1 under the influence of pneumatic pressure is substantially elliptical in cross-section to give increased load capacity compared with a more conventional circular or polygonal section while allowing adequate side clearance to enable the capsule to negotiate bends in the pipeline. Where the load module is likely to "bank" away from gravity the upper portion is semicircular and the lower half is comprised of two arcs to give a substantially triangular section of greater depth than a complete circle. Longitudinally the capsule may be of increased cross- section towards the ends (eg "apple- core") profile to give maximum length and capacity consistent with negotiating undulations in the pipeline without fouling. <IMAGE>
Patent GB-2024311-A (GB)
Title: Door closers
IPC: E05F3/02
Filed: 1979-05-31
Abstract: A door closer comprises a cylinder (1) for insertion in a door cavity in an edge of the door adjacent the door jamb, a sealed chamber (3) within the cylinder in which a damping piston (6) works, a piston rod (9) connected to the piston and extending outwardly from the chamber (3) towards one end of the cylinder which when the cylinder is mounted in the door is adjacent the jamb, and a spring biasing the piston (6) towards the other end of the cylinder. A rod (13) connects the piston rod (9), attached to a slider 11, to the door jamb. In order to accommodate expansion of the damplng fluid, the chamber (3) is expansible and one end of the chamber comprises a movable seal (5) through which the piston rod passes. <IMAGE>
Patent GB-2059660-A (GB)
Title: An alarm system holdable by hand
IPC: G10K9/04
Filed: 1979-09-25
Abstract: A shrill sound-producing system which can be held by the hand comprises a cylindrical head (10) and a gas cylinder (12) operatively associated with the head (10) through a valve means (14). The head (10) is provided at one side with a circular recess (18) for releasably receiving a support (20) for bearing a diaphragm (22) and at its opposite side with a diffusing recess (24) communicating with the circular recess (18) through a horizontal passage (26) which is partially encircled by a sleeve (28) which is in turn encompassed by a circumferential inner wall (29) of the head (10) through an annular groove (30) which communicates with a vertical passage (32) provided in the head (10), the passage (32) being connected to a nozzle (34) of the valve means (14). <IMAGE>
Patent GB-2037988-A (GB)
Title: Pressure sensor
IPC: G01L9/00
Filed: 1979-12-17
Abstract: A surface acoustic wave (SAW) pressure sensor 10 is mechanically supported within a vacuum sealing structure 32, 36 by a cylindrical metal sleeve 44 which isolates the SAW sensor substrate 11 from induced thermal strain resulting from temperature cycling of the structure, and which provides for a fluid conduit 48 through the vacuum environment from the sensor diaphragm to an orifice 50 formed through the wall of the structure. <IMAGE>
Patent GB-2045954-A (GB)
Title: Method of monitoring an amplifier in an opto-electrical circuit
IPC: H04B17/40
Filed: 1980-03-13
Abstract: A method of monitoring an amplifier in an opto-electrical circuit, comprising the steps of comparing with a reference value the value of an automatic gain control signal to control the degree of amplification of an optically derived information signal in the amplifier, and applying the difference between the two values to indicate the deviation from a predetermined value of the signal-to-noise ratio in the amplifier. The difference between the two values can be so applied as to cause the amplifier to emit an alarm signal when the value of the gain control signal in the amplifier exceeds a reference value. Alternatively, the difference between the two values can be applied to indicate the deviation from a predetermined value of the bit error rate in the optically derived signal.
Patent GB-2073097-A (GB)
Title: Producing a reticulated web
IPC: B26F1/26
Filed: 1980-03-26
Abstract: A process and apparatus for forming a reticulated web by stretching a perforated film wherein the perforated film is produced by thermoforming projections or pips onto a thermoplastic film on an endless perforated surface and subsequently skiving the pips off flush with the film, said thermoforming, skiving and stretching all taking place in a continuous fashion.
Patent GB-2074292-A (GB)
Title: Liquid Discharge Devices
IPC: E03C1/10
Filed: 1980-04-17
Abstract: A discharge tube 6 is provided with an elongate slot 7, and with a concentric guard plate 11 located radially outwardly of the slot to catch any liquid which instead of following the inner surface of the tube 6 splashes through the slot. The slot 7 provides venting of the bore of the tube 6 when the upper end of the tube is subjected to suction and thereby prevents liquid from being sucked back into the liquid supply. In a modification the tube is provided with four lines of radially directed apertures, and there is no guard plate. <IMAGE>
Patent GB-2048684-A (GB)
Title: Sanitary towel
IPC: A61F13/472
Filed: 1980-04-28
Abstract: A sanitary towel having a substantially rectangular shape, which comprises a non-woven fabric sheet forming a liquid-permeable surface, a leakage-preventing layer comprising a liquid-impermeable back sheet, and an absorbent member between the non-woven fabric sheet and the leakage preventing layer, wherein a concave area is formed over a part of the central portion of the longer sides of the absorbing member, and the non-woven fabric sheet and the leakage-preventing layer are bonded together to form flaps on the outside of the longer sides of the absorbing member. <IMAGE>
Patent GB-2049347-A (GB)
Title: Video signal processing circuit having a non-linear transfer function
IPC: G06G7/28
Filed: 1980-04-30
Abstract: An electrical circuit suitable for processing vertical detail signal information of a video signal is disclosed. The circuit includes an amplifier (75) having a feedback impedance network with three feedback paths (76; 81, 82, 87, 78, 77; 83 84,79, 77) for determining the circuit gain. Different values of feedback impedance are established in accordance with the operation of a signal responsive switching network included in the feedback network, to establish a signal amplitude transfer function wherein different amounts of signal gain are imparted to signals having amplitudes within prescribed ranges, Figure 5. Small amplitude signals subject to restoration are translated with a prescribed restoration gain. Moderate amplitude signals subject to enhancement (peaking) are translated by amplifying small amplitude excursions thereof with the restoration gain and by amplifying peak amplitude excursions with a gain greater than the restoration gain. Large amplitude signals subject to paring (amplitude reduction) are translated by amplifying small amplitude excursions thereof with the restoration gain, amplifying moderate amplitude excursions with a gain greater than the restoration gain, and amplifying peak amplitude excursions with a gain less than the restoration gain. This counteracts tendency for detail to be lost or distorted when video signals are "comb" filtered. <IMAGE>
Patent GB-2062836-A (GB)
Title: Tempering apparatus
IPC: G05D23/19
Filed: 1980-09-25
Abstract: An apparatus for tempering a heat transfer medium, for example oil, circulating in a closed system comprises a cooling device, electrical heating elements and a vessel for compensating for the expansion of the medium. As the receiver and the expansion vessel for the medium, a cylindrical container (30) is used which, adjacent its wall (32), has a helical flow passage (35) for the medium and also has cavities discrete from the flow passage which receive the cooling device (46) and the electric heating elements (40) for tempering the medium. The container (30) may be closed at the top by a cover (31) having apertures for the insertion of the cooling pipes (50, 55) of the cooling device (46) and a plunger pump (72) for circulating the liquid. <IMAGE>
Patent GB-2091825-A (GB)
Title: Intermittent drive transmission clutch
IPC: F16D43/26
Filed: 1981-01-22
Abstract: An intermittent transmission drive includes a driving shaft 4 carrying a plunger 8 which is operated by a stationary cam 12 against the bias of a spring 10 to move it axially into or out of driving engagement with an abutment 24 intermittently transmitting drive thereto. The cam may consist of at least two arcuate portions capable of arcuate adjustment in position relative to each other so as to vary the period of clutch engagement. <IMAGE>
Patent GB-2091752-A (GB)
Title: Monoazo disperse dyes
IPC: C09B29/28
Filed: 1981-01-24
Abstract: There are disclosed dyes of the general formula:   <IMAGE>  wherein R represents an aryl group of formula:   <IMAGE> or a heterocyclic group,  R<1> represents a straight or branched chain alkylene group,  R<2> represents a straight or branched chain alkyl group, R<3> and R<6> each independently represents H, Cl, Br, Alk, OAlk, CN, CF3, NO2SO2Alk or COOAlk, R<4> represents H, Cl, Br, NO2, COOR<7>, SO2R<7>, SO2OR<7>, SO2NR<8>R<9>, OCOOR<7>, OSO2R<7>, OSO2NR<8>R<9>, OCONR<8>R<9>, CN or CF3, R<7>, R<8> and R<9> each independently represents alkyl, aryl, or cycloalkyl,  R<5> represents H, Cl, Br, Alk or OAlk, with the proviso that when R<3> represents H, Cl or Br, R<5> represents H and R<6> represents a group other than H, R<4> may not represent NO2, and the naphthalene nucleus may be further substituted. There are disclosed processes for their preparation and use. The dyes produce violet to greenish blue colourations on hydrophobic fibres.
Patent GB-2097209-A (GB)
Title: An amplifier for pulse width modulated signals
IPC: H03F1/04
Filed: 1981-04-22
Abstract: In a pulse width modulated signal amplifier employing a tetrode valve S1, current to the grid G1 and screen G2 is controlled by constant current sources 19 and 24 respectively. Each constant current source comprises a switch S3 a current sensor R1, R2 and an inductor L1, L2. Each switch S3, S4 is switched off at a set frequency which, in the illustrated system, is the same as the pulse repetition frequency of the signal to be amplified. Each time the switch S3 or S4 is closed the current in the associated inductor L1, L2 builds up until a set limit, determined by sensor R1, R2 is reached whereupon the sensor opens switch S3 and S4. Thus, the period for which switches S3 and S4 remain closed varies to maintain the currents to G1 and G2 at the desired levels. By employing this technique the inductors L1 and L2 do not need to be as large as would be required using a known technique described in UK Patent Specification 1566095. Stray capacitances and resulting distortion are thus minimised. Also, since the switching frequencies of the switches S3 and S4 are identical the generation of harmonics of these frequencies, resulting in further interference with the signal to be amplified, is also avoided. <IMAGE>
Patent GB-2078211-A (GB)
Title: Benefication of Iron Oxide Waste
IPC: B03B9/04
Filed: 1981-07-03
Abstract: Iron oxide waste e.g. red mud (a normally discarded by-product of aluminium refining), is beneficiated by forming a free-flowing deflocculated aqueous slurry of the waste, neutralising the alkalinity of the slurry by addition of acid and then magnetically separating the slurry into a relatively highly magnetic, iron-oxide containing fraction and a second relatively weakly magnetic fraction. The iron rich fraction is useful, for example, as a pigment and the other fraction when red mud is the starting material, may be used as feedstock for aluminium recovery.
Patent GB-2103347-A (GB)
Title: A drying cupboard for sheet form material
Inventor: SIMON JOACHIM
IPC: F26B21/08
Filed: 1981-08-04
Abstract: A drying cupboard (1) for, in particular, photographic sheet-form material, in which only that portion of the drying air which has been dehumidified is heated, comprises a housing (8) having air circulation blowers (20, 21) and a bypass duct (9) in which heating means (16) are located downstream of a dehumidifer (14). A portion of the air circulating in the housing is extracted into the bypass duct (19) for dehumidifying and heating before being returned to the housing for drying the photographic material (7). <IMAGE>
Patent GB-2099391-A (GB)
Title: Package of liquid components
IPC: A61J1/00
Filed: 1981-11-06
Abstract: A package of liquid components which are to remain separate until mixed for use, comprises a plurality of pouches (51,52,53) each having a compartment (54,55,56) containing a liquid component and each, other than an outer pouch (51), being disposed within the compartment of another pouch, and a colour indicator in at least one of the compartments which when mixed with at least one of the components in another compartment effects a colour change to thereby provide visual indication of an internal leak between compartments before the package is opened. The outer pouch (51) is made of a polyurethane film and contains a buffer solution. The intermediate and inner pouches (52,53) are made of a polyethylene/ethylene vinyl acetate copolymer film and contain a wetting agent with the colour indicator and hypochlorite solution, respectively. <IMAGE>
Patent GB-2118896-A (GB)
Title: Workpiece clamping device
Inventor: SWEATMAN OSBOURNE MALCOLM
IPC: B25B5/12
Filed: 1982-03-05
Abstract: A workpiece such as a log (20) is clamped to a bed (19) by means of a clamp arm (9) which is movable into clamping engagement with the log by a spring-loaded manually operable toggle lever (12). When released, the toggle lever (12) is urged upwards by its loading spring (17). <IMAGE>
Patent GB-2108023-A (GB)
Title: Portable abrasive throwing wheel device
Inventor: CARPENTER JAMES H
IPC: B24C5/06
Filed: 1982-05-19
Abstract: A portable abrasive throwing wheel device for blasting castings and the like is of such a construction whereby its total weight is on the order of 100 pounds and is so suspended wherein it has very little thrust reaction on an operator so that it may be readily manipulated. Further, the principal thrust of the device is carried by the suspension for the device and otherwise is directed towards the operator so that is may be readily counteracted. The portable device includes a fixed motor and a fixed abrasive supply with a throwing wheel carried by the motor and only a housing portion being movable. The housing is rotatable about the axis of the motor and serves to permit the discharge opening of the device to be tilted to the desired angle for directing the abrasive blast where desired. An abrasive supply spout 91 for the throwing wheel has an outer peripheral mounting flange 92 and a curved spout position 90 on one side of the flange terminating in a discharge opening 94 directed substantially parallel to the flange. <IMAGE>
Patent GB-2112380-A (GB)
Title: A pyrimidone salt and its preparation
Inventor: WHITE GEORGE RAYMOND
IPC: C07D405/14
Filed: 1982-05-26
Abstract: The invention provides 2-[2-(5-methyl-4-imidazolylmethylthio)ethylamino]-5-[5-(1,3-benzodioxo lyl)methyl]-4-pyrimidone di(methanesulphonate) which is useful as a histamine H2-antagonist. The compound can be prepared by reacting 2-[2-(5-methyl-4-imidazolylmethylthio)ethylamino]-5-[5-(1,3-benzodioxo lyl)methyl]-4-pyrimidone with methanesulphonic acid.
Patent GB-2103307-A (GB)
Title: Rolling bearing cage
Inventor: OLSCHEWSKI ARMIN
IPC: F16C33/54
Filed: 1982-07-30
Abstract: In the method of producing a rolling bearing cage a strip of metal (10) having recesses (12) at its ends is bent to form a ring and the abutting edges (11) are welded together to form joints (16). The recesses (12) form one or more apertures (15). Pockets (17) to receive rollers or balls are then punched out from the ring, the punch tool and the weld joints (16) not contacting each other since the pocket adjacent the joints has recesses (18) which previously formed part of the aperture(s) (15). Thus only short weld joints (16) are required. <IMAGE>
Patent GB-2128648-A (GB)
Title: Modular construction unit and composite structures assembled therefrom
Inventor: DAY ANTHONY CHARLES WILLIAM
IPC: E04B1/61
Filed: 1982-09-13
Abstract: A plurality of unitary modular structures are used to form a composite structure for use as a marine vessel or a building or both, each unitary structure (1) comprising a skeletal framework (2) embedded within a plastics foam material (3) and covered by a plastics skin (4), ends of the framework being exposed through the skin (4) to accommodate coupling means (5) such as dowels, to allow adjacent unitary structures to be clamped together in sealing-tight relationship. <IMAGE>
Patent GB-2129726-A (GB)
Title: Can crusher
Inventor: SHIMAMOTO NOBUTAKA
IPC: B30B9/32
Filed: 1982-11-10
Abstract: A can crusher includes a conveyor 2 including a washing chamber in which the empty cans are washed, a screw conveyor 18 whereby cans to be crushed are arrayed in an orderly manner and fed to a first 10 and second 14 crushing roller group whereby the cans are partly crushed and then completely crushed into a flattened state, and a drier 20 for drying the crushed cans. The crusher unit is compact so as to be suitable for mounting on a vehicle. <IMAGE>
Patent GB-2129391-A (GB)
Title: Arrangement for connecting the wishbone of a windsurfer to the mast
Inventor: WEHRLI HANS
IPC: B63B35/79
Filed: 1982-12-23
Abstract: The connection between the mast (1) and the connecting element (4) on the end of the wishbone of a windsurfer is made by means of two endless, elastic connecting members (6), for example of rubber or the like. These connecting members, on one side, grip around the mast (1) and, on the other side, grip around holding members (19) on the connecting element (4). The holding members can comprise cylindrical, eccentrically mounted holding bodies (22) which are rotatable relative to the base plate (8) of the connecting element (4) and thus enable the pretension of the connection to be adjusted. <IMAGE>
Patent GB-2119190-A (GB)
Title: Electro-hydraulic control system
Inventor: GROVE JOHN LANDIS
IPC: F15B11/04
Filed: 1983-02-01
Abstract: A control system regulating the rate of flow of hydraulic fluid includes electrical means for converting the analog signal from a hand activated controller into a binary coded decimal signal, and a variable flow valve for functionally decoding the BCD command signal into a specified rate of fluid flow using a bank of step flow cartridges each of which passes a specified flow of fluid therethrough to the fluid motor. <IMAGE>