baber/WOPTO huggingface dataset:
Patent GB-1383059-A (GB)
Title: Slide valve assemblies
IPC: F16K41/10
Filed: 1972-11-30
Abstract: 1383059 Valves BULK UNIT LOAD SYSTEMS Ltd and G W SNAPE 29 Nov 1973 [30 Nov 1972] 55431/72 Heading F2V  In a slide valve for controlling the flow of powdered materials, pastes, slurries and liquids, the closure member 18 is enclosed in a flexible membrane bag 21 made of Linatex (Registered Trade Mark) which prevents material flowing through the valve from entering the valve guides 33. The bag is fixed to the leading edge of the closure member by bars 27 and the other end of the bag is fixed sealingly between annular plates 40, 41 and upper and lower orifice plates 16, 17 respectively. When the closure member is withdrawn to open the valve the bag is retracted into an external cover 24. The valve may be operated by means of two, or alternatively one, double acting air or hydraulic cylinders 12, 13, the piston-rods 14, 15 of which are connected to a web 11 which is welded at 19 to the closure member. Alternatively the valve may be manually operated.
Patent GB-1223058-A (GB)
Title: Improvements in and relating to apparatus for effecting cervico-dorsal re-education in the seated position
Inventor: HERBERT CHARLES
IPC: A63B23/02
Filed: 1968-11-28
Abstract: 1,223,058. Cervico-dorsal exercising apparatus. C. HEBERT. 28 Nov., 1968 [1 Dec., 1967], No. 56466/68. Heading A6H. An apparatus for cervico-dorsal re-education in the seated position, consists of a chair having a seat portion 2, at right angles to a back portion 3, the apparatus being characterised in that the chair is fitted with a mechanism, 8-17, providing alternate translational movement in a plane perpendicular to the back, the mechanism being subjected to the resistance offered by a weight suspended from the ring 21, on the end of the cable, 19, in such a manner that a patient, through the intermediary of a head rest 16, actuates the mechanism. The mechanism may comprise a non deformable quadrilateral, 11, 12, slidably located in a horizontal fixed quadrilateral 8, 9, 10 to which the adjustable head rest 13-16, is welded. The mechanism may be vertically adjustable by means of supporting rods 7, formed with one or more racked portions, which can be immobilized in vertical guide tubes 5. The cable 19, may pass over the pully 18, and, via an adjustment chain, may be attached to the rear member 12. A vertically adjustable foot rest, 4, may be provided. Supporting straps may be attached to position 23 of the chain frame. An electrical contact 22, may actuate in order to indicate the completion of the desired transverse motion of the mechanism. The chain may have a tubular frame. (For Figure see next column)
Patent GB-1377062-A (GB)
Title: Electrical system for use in an internal combustion engine cooling  system
IPC: F01P7/08
Filed: 1970-11-28
Abstract: 1377062 Axial flow fans JOSEPH LUCAS (INDUSTRIES) Ltd 19 Nov 1971 [28 Nov 1970] 56648/70 Heading F1C [Also in Division H2]  A control system for an electric motor which drives the fan of an internal combustion engine cooling system comprises an indicator for indicating when the motor is energized, and a device for detecting the temperature of the coolant and for energizing the motor when this exceeds a particular value, the device being heated by an electric current to a temperature in excess of that particular value (thereby causing the motor to be energized) when the coolant in the system is below a certain level irrespective of the coolant temperature. As shown in Fig. 2 detecting device 12 comprises a bi-metallic strip 13 which operates a switch to energize the motor 11 and lamp 16 and which is heated by a current passed through element 15. The device 12 is normally submerged in the coolant and the motor energized only when the coolant temperature exceeds a particular value, but when the coolant level drops below the device element 15 causes the switch to be operated irrespective of the coolant temperature. Alternatively, Fig. 5, the detection device comprises heating element 20 and sensing resistor 21, both positive coefficient of resistance resistors. When the coolant temperature exceeds a particular value or the coolant level below a particular level transistors 31, 35 become conductive to energize relay coil 30 thereby closing the relay contacts 29 to energize the motor 11 and loop 16.
Patent GB-1385347-A (GB)
Title: Coumarine derivatives and their use as optical brightening agents
IPC: C11D/
Filed: 1972-12-08
Abstract: 1385347 Coumarin derivatives BAYER AG 8 Dec 1972 [10 Dec 1971] 56725/72 Heading C2C [Also in Division C3] Compounds of the formula wherein R 1  stands for a phenyl, phenoxy or benzyloxy radical which is optionally substituted by alkyl, alkoxy, halogen, -COOH or alkoxycarbonyl, or stands for a cycloalkyl radical, R 2  stands for a hydrogen atom or together with R 1  forms a -(CH 3 ) 4 - or radical, R 3  stands for an alkyl radical, a cycloalkyl radical or a phenyl radical which is optionally substituted by alkyl, alkoxy, halogen, phenyl or cycloalkyl, R 4  stands for a halogen atom or an alkoxy, -CN, -COOH alkoxycarbonyl or methyl radical, X stands for CH or N and n is 0, 1 or 2, may be obtained (a) when X represents N, by dehydrating an oximinohydrazone of the formula or or (b) when X represents CH, by reacting a 3-aryl-7-(#-acylhydrazino) coumarin with a vinyl ketone of the formula wherein Z represents a hydroxy, alkoxy, acyloxy or dialkylamino group or a halogen atom, and cyclizing the resulting condensation product. The products possess optical brightening properties and may be incorporated into polyester materials.
Patent GB-1380897-A (GB)
Title: Substrates with vitreous enamel electrical resistor coatings
IPC: H01C17/065
Filed: 1970-12-01
Abstract: 1380897 Vitreous enamel composition ELECTRICAL RESEARCH ASSOCIATION Ltd 22 Feb 1972 [1 Dec 1970] 57087/70 Heading C1M A vitreous enamel composition comprises a mixture of a powdered glass and 0À25 to 30% by weight of a reducing agent, the powdered glass containing 2 to 30 mole per cent of molybdenum trioxide, tungsten trioxide, cerium dioxide, manganese dioxide and ferric oxide. The reducing agent may be elemental boron or silicon, molybdenum disilicide or tungsten disilicide. The composition is made into a paste using ethyl cellulose in terpinol printed on to a substrate and fired in air for a period of 30 minutes to 2 hours at a temperature of from 600 to 900 C. The resulting enamel has a temperature coefficient of resistance of from -500 to 550 ppm./ C. measured in the range 20 to 120 C. The base glass may be aluminoborate; cadmium aluminoborate; lead, cadmium aluminoborate or sodium zinc aluminoborate.
Patent GB-1174938-A (GB)
Title: Ground Effect Machines
Inventor: GIRAUD FRANCOIS LOUIS
IPC: B60V3/04
Filed: 1966-12-29
Abstract: 1,174,938. Air cushion vehicles. BERTIN ET COMPAGNIE. 29 Dec., 1966 [29 Dec., 1965], No. 58066/66. Heading B7K. An air cushion vehicle supported by a plurality of cushions is so constructed that when the vehicle rolls, pitches or yaws, the resulting difference in pressure in a particular cushion, so conditions the supply of air to that cushion as to restore the vehicle to its original attitude. In one embodiment the vehicle comprises structure walls 8a, 8b and a base wall 9 which carries plenum chamber structures 11a, 11b spaced from operating surface 10 by cushions 1a, 1b. The structures 11a, 11b are connected by ducts 3a, 3b to a common air supply duct 4 formed with a convergent portion 5 to accelerate the air flow. An orifice is formed in each plenum chamber and respectively connected by ducts 7b, 7a to cross-ducts 12b, 12a which open at 14b and 14a on the exterior surfaces of the vehicle and terminals adjacent the convergent portion 5. In operation, should the vehicle roll, increase in pressure in, say, cushion 1a will transmit a flow through ducts 7b and 12b to act on the flow from restriction 5 to reduce the airflow to cushion 1b and increase the flow to cushion 1a, to restore equilibrium of the vehicle. Alternatively, a side wind acting through opening 14b to achieve a similar result. Groups of ducts are described for three and four cushion vehicles with either fluid curtain or plenum chamber cushions and a further embodiment disclosed use of apparatus such as described for the support pads and guide pads of a vehicle which operates over an inverted T-section track.
Patent GB-1369018-A (GB)
Title: Vapour-liquid contacting device
IPC: B01D3/22
Filed: 1971-12-20
Abstract: 1369018 Liquid vapour contacting column UNIVERSAL OIL PRODUCTS CO 20 Dec 1971 [21 Dec 1970] 58967/71 Heading B1R A vapour-liquid contacting column contains a plurality of vertically spaced trays each having a downcomer 5, and an imperforate portion 3 beneath the downcomer from the tray above, to receive liquid therefrom, and a perforate portion 10 adjacent the imperforate portion and separated therefrom by an inclined wall 7, and a second wall 8 adjacent the first wall 7 so that the upper edges of the respective walls form a slot 9, which is in communication with the tray below via the perforations between the two walls.
Patent GB-1409759-A (GB)
Title: Machines for counting articles
IPC: G06M7/02
Filed: 1973-12-27
Abstract: 1409759 Counting piece-goods ABG APPARATBAU GmbH 27 Dec 1973 [25 Jan 1973] 59852/73 Heading B8S To enable operation with different articles, counting apparatus comprising a reservoir 2, a feed wheel 8, and a discharge outlet 9 associated with a counting device (not shown), is such that the inclination of the wheel 8 is adjustable and the wheel is removably mounted to permit the wheel to be changed. For spherical objects the wheel 8 is a toothed wheel and is inclined to the horizontal. For bar-like objects the wheel is horizontally disposed and is a plain disc, a spiral guide for the objects being mounted above the disc.
Patent GB-1306658-A (GB)
Title: Printing machine
IPC: B41L47/14
Filed: 1971-12-23
Abstract: 1306658 Printing machine JANOME SEWING MACHINE CO Ltd 23 Dec 1971 [29 Dec 1970 24 Feb 1971] 60082/71 Heading B6C A travelling cylinder machine 1 wherein a fixed suitably shaped printing plate 3 is removably held on the printing bed 2 through a seat plate 23, is provided with pin heads 26 and a resilient U-shaped clip 4 for engaging the plate. Once engaged, the plate may readily be removed by tilting the right-hand edge in the direction of the arrow as shown in Fig. 5. The fixed plates 3 are stored on the machine in racks 17, Fig. 1, or in a single long groove behind the operating knobs 14, Fig. 8.
Patent GB-1263633-A (GB)
Title: Improvements in or relating to distance pieces for reinforcing rods
IPC: E04C5/20
Filed: 1969-12-24
Abstract: 1,263,633. Reinforcing rod distance piece. KUNSTSTOFFENINDUSTRIE ATTEMA N.V. 24 Dec., 1969 [17 March, 1969; 17 Nov., 1969], No. 62954/69. Heading E1W. A distance piece for concrete reinforcing rods has a circular border 1 providing a circular surface, for engaging a coffering, which is smooth and is uninterrupted except by a slit 7 through which a reinforcing rod is passed when being radially introduced into the opening 9 of a collar 4 coaxial with the border. The slit includes a portion of less width than the largest dimension of the opening 9. The collar is connected to the border by substantially radial ribs 5, which near the border and near the collar, have the same axial thickness as the border and collar respectively; and are thinner in the circumferential direction than in the axial direction. The axial width of the border may be less than that of the collar, as in Figs. 3 and 4 (not shown) or may be of the same width and provided with an outer protruding circumferential rib 2 of lesser axial width. The collar 4 may be polygonal and the ribs may include ribs 3 arranged in a plurality of pairs, each pair extending from opposite ends of one of the sides of the polygonal collar.
Patent GB-2022708-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F01C1/107
Filed: 1978-06-09
Abstract: Apparatus for compressing and/or expanding a gas comprises an inner gear a, a surrounding outer gear c, the gears being arranged eccentrically and for relative rotation and having teeth which, together with radially extending end-closure members d, define working-fluid spaces with volumes which change on relative rotation of the gears and reach a minimum at a position in which the mutual engagement of the teeth is at a maximum, a discharge port e for compressed or expanded gas or for each of the compressed and expanded gases, and a generally annular resilient sealing member b (preferably formed with longitudinal corrugations) interposed between the inner and outer gears. In a preferred embodiment the teeth are helical and thus the gas passes between the teeth in an axial direction, Fig. 2 (not shown). The apparatus may be comprised in a heat engine or a heat pump, Figs. 5 and 6 (not shown). <IMAGE>
Patent GB-2024653-A (GB)
Title: Mass transfer device
IPC: F28D9/00
Filed: 1978-07-07
Abstract: A parallel flow device for effecting mass transfer between first and second fluids comprises a plurality of plates arranged to form a stack 110 with a membrane 300 between adjacent plates defining first and second fluid channels on opposite sides of the membrane, first fluid manifold header 60 for receiving fluid from inlet 66 and distributing it uniformly to the first channels and removing to outlet and second manifold for distributing second fluid to second channels and removing it to second outlet 67. The manifold header together with manifolds in the plates, repeatedly divide the streams of fluid into two identical branches to obtain a uniform distribution across the plate. <IMAGE>
Patent GB-2003327-A (GB)
Title: Improvements in or relating to release electromagnet assemblies
IPC: G03B17/38
Filed: 1978-08-22
Abstract: A release electromagnet assembly includes a permanent magnet body 15 associated with a movable member 19, and an electromagnet which co-operates with the permanent magnet such that magnetic attraction between the latter and the yoke 12 of the electromagnet is effective to constrain the movable member. The electromagnet is capable in energisation of coil 13 of producing a flux opposing such magnetic attraction to release the movable member for free movement by spring 21. The permanent magnet body has a magnetic pole of a single polarity disposed opposite the limb ends of the yoke of the electromagnet so that flux from the permanent magnet body passes along a magnetic path which is partly external of and partly within the yoke of the electromagnet. Energization of the release coil 13 produces a flux which passes along a magnetic path which is mainly within the yoke and which opposes the flux from the permanent magnet body, thus releasing the movable member from the constraint applied by the permanent magnet body. The yoke may be of e.g. ferrite. <IMAGE>
Patent GB-2007885-A (GB)
Title: Automatic Control of Converters
IPC: G05F1/56
Filed: 1978-09-05
Abstract: An AC power supply circuit (A) comprises a DC source (18), an inverter (5) and an intervening circuit between the DC source and the inverter and including reactance means (3,4) for smoothing the DC signal supplied to the inverter. A voltage regulator (11) maintains the voltage at an output terminal (9) at preset value. In order to reduce transient variations in the output voltage due to variations in the DC source (18), a current (ic) in the reactance means (3,4) which is proportional to the time derivative of the output voltage of the inverter is monitored to provide a signal supplied as an auxiliary control signal to the voltage regulator (11). The DC source includes an AC supply 18 rectifier 2, with battery standby 15 and associated change over control 16, 17. <IMAGE>
Patent GB-2004341-A (GB)
Title: Subsea line connector
IPC: E21B43/013
Filed: 1978-09-07
Abstract: A subsea line connector for connecting production and/or control lines to underwater equipment. The connector includes engageable telescoping male and female members 12 and 14, one of which (14) may be positioned subsea and the other of which is retrievable. When engaged, the members provide communication between either or both of production lines 16-18, 36-38 and control lines 20, 50. A locking mechanism 34, 36 moves the members 12 and 14 longitudinally together for securely sealing mating fluid passageways. <IMAGE>
Patent GB-2041891-A (GB)
Title: Container Closures
IPC: B65D47/08
Filed: 1979-02-07
Abstract: A closure moulded from plastics materials or plastics laminated foil comprises a wall (8) having an aperture (10), and an integrally formed bar (18) adapted for pivotal movement about a flexible hinge (16) the bar being provided with a plug (20) which on closing enters the aperture (10), the plug acting to clear the aperture of residual material dispensed from the container. <IMAGE>
Patent GB-2017392-A (GB)
Title: Phase-locked loop laser gyroscope
IPC: G01C19/64
Filed: 1979-03-12
Abstract: A laser gyroscope has a phased-locked loop circuit 5, Fig. 1, coupled to a frequency difference output from a laser gyroscope cavity 110. Waves of four frequencies propagate around the gyroscope cavity, each characterised by one of the two different senses of circular polarization and one of the two different directions of propagation. Output signals  DELTA f1 and  DELTA f2 are formed each having a frequency equal to the difference between the frequencies of a corresponding wave pair. The frequency difference signal  DELTA f1 for one wave pair is phase-locked to an external reference source 118, Fig. 3. A signal applied to a Faraday rotator bias coil 114 provides the frequency shifting of the wave pairs necessary to achieve a constant frequency difference  DELTA f1. The amplitude of the signal applied to the Faraday bias coil can be employed as a precise measure Vout of the rate of rotation. Alternatively, a second, external phase-locked loop, Fig. 4, includes a voltage controlled oscillator 138 followed by a frequency divider 135 whereby the oscillator frequency divided by N is phase locked to  DELTA f2. The output of the voltage controlled oscillator provides an output signal Vout which has a frequency in proportion to but many times higher than the frequencies of the wave pair difference signals. in a further alternative not controlling the frequency difference in the laser, the control signal for the voltage controlled oscillator 138 provides the measure of rate of rotation. Other embodiments employ phase- locked loops only of the external type. <IMAGE>
Patent GB-2045730-A (GB)
Title: Bottle seals
IPC: B65D39/00
Filed: 1979-03-30
Abstract: A bottle seal (1) comprises a sleeve (2) defining a through bore (3) for receiving a dispensing tube or, for example, an optic measure, the outer surface of the sleeve having radially outwardly extending, flexible annular ribs (5) for contact with the inside surface of a neck of a bottle for producing a liquid tight seal between the bottle neck and a dispensing tube. Bore (3) may also be provided with annular ribs for sealing engagement with the tube. <IMAGE>
Patent GB-2049035-A (GB)
Title: Silencing Gaseous Flow
IPC: F01N13/02
Filed: 1979-05-25
Abstract: A noise reduction system for pipelines includes a plurality of expansion spaces 3, 5, 7, 9 between an inlet 1 and an outlet 10, the expansion spaces 3, 5, 7, 9 being connected together and to the inlet 1 by pipes 2, 4, 6, 8 at least one of which, 2, is divided into passages extending different distances into an associated expansion space 3. The passages are formed by a pair of concentric pipes separated from each other by longitudinally extending plates of different lengths. The attenuation is made greatest for frequencies having the greatest sound input to the system. An expression is given for the minimum length of pipe 4 between the first and second expansion spaces 3 and 5. The wall 14 of the expansion spaces may be perforated or imperforate and in the former case a sound absorbent material 13 and an airtight cover 15 surround the walls 14. <IMAGE>
Patent GB-2025579-A (GB)
Title: Hydraulic restrictor valve
IPC: F16K1/38
Filed: 1979-06-07
Abstract: A flow control valve comprising an externally stepped outer member (25) having its smaller diameter part externally screw-threaded (27) for engagement with a complementary screw thread (24) in a bore (23) in a body (10) in which the valve is received, in use, to allow axial adjustment therein. The outer member (25) has an interior cavity (30) which is closed at one end by a screw (31), by means of which said axial adjustment can be made, and has an opening at its other end, said cavity also communicating with the bore by way of a further passage (33) at a position adjacent the step in the outer member. The cavity has a portion (32) tapered towards said opening at its end and a valve (26) loosely located within the outer member has a taper complementary to that within the cavity. In one direction of flow through the valve, the separation of the outer and valve member tapers is maximised to allow unrestricted flow, whilst in the other direction of flow such separation is minimised to restrict the flow. The valve has particular application in a door closer, to allow opening of the door substantially without restriction, and substantial restriction during closing. <IMAGE>
Patent GB-2052310-A (GB)
Title: Grading machine for particulate commodity
IPC: B07B13/16
Filed: 1979-06-18
Abstract: The machine comprises feed table 10, sorting table 11, and hopper system 12 for collecting the graded particles. Sorting table 11 comprises a perforate deck 18 having two separate zones, the perforations in the first zone (A) being smaller than those in the second zone (B). The table is vibrated in a direction to cause particles to pass along the deck. The deck is made from expanded metal sheet 45 in zone A, and from a woven metal material having larger apertures in zone B. The particles are fed onto zone A via weir arrangement 29 comprising a pair of diverging square-section transverse bars 60 and 61 mounted over round- section rods 68 forming a grid for dispersing the particles. This arrangement prevents dust and smaller particles being retained on top of the mass of larger particles on the deck 18 which occurs where conventional feed arrangements are used. <IMAGE>
Patent GB-2025580-A (GB)
Title: Rotary slide valve
IPC: F16K3/10
Filed: 1979-06-20
Abstract: A valve for providing communication between at least one load connection and a source of pressure medium or a sink for said medium comprises a housing having a first face including axially arranged ports 20, 22, 56 communicating with said source, sink and load connection(s), and a valve slide member 26 rotatably arranged in the housing and having two circumferentially extending control grooves 52, 54 arranged in a face thereof adjacent said face of the housing, each control groove communicating with an internal space 64 of the housing which is defined by a second face of the slide member and a second face of the housing remote from its first face by means of a non-return valve 60, 62. <IMAGE>
Patent GB-2025391-A (GB)
Title: Method and Apparatus for Producing Glass Filaments
IPC: C03B37/02
Filed: 1979-07-03
Abstract: A method and apparatus for producing glass filaments in which glass filaments in a spinning chamber are contacted by a mist comprising a mixture of compressed air and a treatment liquid, the constituents of the mist being mixed in a first part of a heat exchanger adjacent the spinning chamber and passing to a second part of the heat exchanger more remote from the spinning chamber before being delivered from that second part into the spinning chamber. <IMAGE>