baber/WOPTO huggingface dataset:
Patent GB-671516-A (GB)
Abstract: 671,516. Making heat-exchangers. AIR PREHEATER CORPORATION. April 12, 1950 [June 25, 1949], No. 8984/50. Class 83 (ii). [Also in Group XIII] A method of applying pin-fins to tubular heat exchange elements comprises feeding to a work station A a plurality of spaced tubes 21 disposed with their axes parallel, simultaneously feeding to said station a plurality of continuous lengths of wires 24 and 25 disposed in spaced parallel relationship and extending transversely of said tubes, welding or brazing said wires to a tube at said station, and advancing the tube to a station B where the wires are severed at points between succeeding .tubes so that wire portions project from each longitudinal edge of a tube. The welding or brazing of said wires to a tube takes place over areas less than the width of a tube. The projecting wire portions 27 and 28 are bent upright with respect to the surfaces of the tubes to which they are attached to form pin-fins 20. A heat-exchange core having envelope type fluid passages is built up of a plurality of tubular elements having pin-fins according to the invention, the elements being superimposed in contacting relation in a tier, Fig. 1. The tubular elements 33, Fig. 4, are cylindrical tubes.seated at their ends in tube sheets 34 to form a heat exchanger core. Either rectangular, square or cyiindrical tubular elements may be provided with internal fins in the form of extended wall surfaces by fitting other tubes 35 inside them, the tubes 35 being welded or brazed at 38 to the tubular elements, Fig. 4.
Patent GB-2005773-A (GB)
Title: Improvements in synchronising hydraulic control valves
IPC: F15B15/16
Filed: 1978-08-31
Abstract: A hydraulic control valve for synchronising the advancement and retraction of two hydraulic actuators is described. The valve includes a rotor rotatable within a valve body and having interconnecting fluid passages for connecting inlet and outlet ports for hydraulic fluid for the actuators. The rotation of the rotor to control the flow of hydraulic fluid to or from the hydraulic actuators is brought about by means of a length of cable 17 one end of which passes around a recoil drum 16 joined to the rotor and the other end of which is linked to one or both of the hydraulic actuators 11, 12, so that when they advance or retract out of synchronism, cable pays off from or onto the drum so rotating the drum and rotor to modify the flow of fluid to or from the hydraulic actuators and restore them to synchronism. The arrangement is particularly useful in the actuation of telescoping jibs for cranes. <IMAGE>
Patent GB-2010475-A (GB)
Title: Molten Metal Surface Level Detection System
IPC: G05D9/12
Filed: 1978-11-08
Abstract: A molten metal surface level detection system has an ITV camera 12 at an appropriate place where it is neither thermally affected by the molten metal surface portion nor obstructs the site jobs and means for dividing the image on its monitor section 16 into picture elements by dividing it horizontally & vertically, means for selecting some of these elements at least one of which corresponds to the level, means for binary encoding each line element of the selected elements by comparing it with a reference & logic means for detecting the surface level from the binary signals 14. <IMAGE>
Patent GB-2035651-A (GB)
Title: String-tension adjusting mechanism
IPC: G10D3/14
Filed: 1978-11-23
Abstract: A string-tension adjusting mechanism for a pedal-steel guitar includes a bridge finger (6), pivotally mounted (9) at its upper end to which the string (4) is anchored, and resiliently biased (11, 12) against the string tension into a normal operative position. Two bell-crank levers (13, 14) are mounted adjacent the bridge finger and are pivotable by respective pull rods (18, 19), acting in the same direction, to engage respective cam surfaces (24, 25) with a roller bearing (26) at the lower end of the bridge finger to pivot the bridge finger in opposite respective directions from the normal operative position into engagement with a stop (28) and lever (13) acting as a stop respectively to lower or raise the pitch of the string by predetermined intervals during play. <IMAGE>
Patent GB-2007982-A (GB)
Title: Holders for dental strip materials
IPC: A61C15/04
Filed: 1978-11-23
Abstract: The invention provides holders for manually manipulated dental strip materials, such as dental floss. The holders are bow-shaped or double- bow shaped and made of resilient material in order to tension the strip. In the double-bow construction, the strip 5 engages the bow holder midway of its length, so that either half can be further tensioned by digital pressure on the other half. <IMAGE>
Patent GB-2010757-A (GB)
Title: Motor vehicle variable roll control system
IPC: B60G21/05
Filed: 1978-12-13
Abstract: In a motor vehicle having an independent front suspension roll control system comprising two torsion bars 18, each one of which is connected at one end to a front wheel suspension assembly 10, 12 of the vehicle and is pivotally connected at the other end to the frame of the vehicle wherein the two torsion bars are linked together by means of a tie-rod 24 pivotally connected to a free end 22 of a control arm 20 extending from each of said torsion bars, the tie rod is movable relative to the vehicle frame between two adjustable limit stops 28 mounted on the vehicle frame and movable towards or away from one another by means of a control mechanism. Adjustable biasing means 30 located between said limit stops and said tie rod control in conjunction with the limit stops the permissible amount of relative movement between the tie rod and the vehicle frame to enable the vehicle to exhibit suitable suspension characteristics for both on-road and off-road use. <IMAGE>
Patent GB-2010687-A (GB)
Title: Improved method and apparatus for recycling asphalt-aggregate compositions
IPC: E01C19/10
Filed: 1978-12-22
Abstract: In the production of asphalt- aggregate composition in which used asphaltic concrete is recycled there is provided a rotatable drum 10 into which flame and hot gases of combustion are directed by a burner 12, and virgin aggregate 25 is supplied in a hot zone of the drum and is directly exposed to the flame and/or hot gases of combustion. Particles of asphaltic concrete composition 35 are introduced by chute 24 downstream from the hot drum input end, away from direct exposure to the flame and extremely hot gases, in a cooler temperature zone. The constituent materials are mixed together & with asphalt supplied through pipes 14 as the drum rotates and the materials progress longitudinally through the drum to the discharge 24. <IMAGE>
Patent GB-2016373-A (GB)
Title: Rollers for printing machines
IPC: B41F30/00
Filed: 1979-01-12
Abstract: A roller, e.g. for offset printing, having a magnetic cylinder base 1 and a printing blanket 3, in which the printing blanket 3 has one or more layers 5, 6, having reinforcing members therein and one or more layers 3, 4, of rubber or rubber-like materials associated therewith, in which:   (a) the underside of the printing blanket (3) is adhesively connected to a thin, flexible, foil-like ferromagnetic metal plate (9), and (b) the metal plate 9 is retained radially to the cylinder base 1 by magnetic forces. Pins 12 and corresponding holes 11 may locate an end of the plate 9.   <IMAGE>
Patent GB-2021309-A (GB)
Title: Over-voltage protection devices
IPC: H01J17/38
Filed: 1979-02-08
Abstract: In a device for protecting against over voltages comprises an envelope containing at least one pair of primary electrodes and a pair of secondary electrodes connected via a capacitive junction in parallel therewith, the secondary electrodes and the capacitor junction are formed by depositing conductive material on a dielectric support in at least one strip, the support being arranged inside the envelope. The figures show a quadrupolar device with primary electrodes 23 mounted in metallic envelope 20, with segments of conductive material 25 being disposed on the glass member 24 and forming a capacitive junction C with respective electrodes 23. Alternative quadrupolar, bi-polar and five-polar protection devices are described. <IMAGE>
Patent GB-2020081-A (GB)
Title: Front-loaded cassette tape deck
IPC: G11B15/675
Filed: 1979-02-09
Abstract: A front-loaded cassette tape deck includes movement multiplication means which moves the cassette A a greater distance than the distance shed travelled by a loading table 3. A cassette A is placed in a slider 2 on the table 3 and is held therein by a leaf spring. As the table 3 is moved towards the closed position from the fully projected position, the slider 2 is moved by cords 14 and pulleys 10 at a faster rate than the table, the slider thus being moved relative to the table, the greater travel of the slider causing it to be moved within a holder 8 by the sliding engagement of a plurality of guide members 8a, the holder being at an upper position, but when table 3 reaches the closed position, the slider 2 is fully disposed within the holder 8, the holder 8 with the slider 2 then automatically rotating to a lower position, which puts the cassette into operational engagement with a cassette driving section B. <IMAGE>
Patent GB-2024338-A (GB)
Title: Mounting for a self-aligning bearing
IPC: F16C35/04
Filed: 1979-03-01
Abstract: A mounting for a self-aligning bearing consists of a two-part flange-cartridge mount wherein the two parts have opposed truncated concave spherical-seat regions for self-aligning support of the convex spherical periphery of a self-aligning bearing 14, one of the flange parts 11 being essentially flat and of thickness extending for at least the axial extent of the concave seat formation therein, so that the said one flange part may fit flush to a frame member 13 and provide direct frame support for the bearing when the other flange part 10 is clamped to the frame member via the said one flange part. The other flange part is of pressed steel and the spherical seat is formed therein in an axially deformed offset portion 24. The thick flange part 11 may be of sintered powder metal or of cast metal or it may be of plastic material. <IMAGE>
Patent GB-2014972-A (GB)
Title: Boron nitride fibres
IPC: C23C16/01
Filed: 1979-03-19
Abstract: Boron nitride fibre material is produced by depositing a coating of boron nitride (BN) on carbon fibre and subsequently heating the thus-coated fibre in a gas, eg air, which reacts with carbon to drive off the carbon as a gaseous product and leave substantially hollow boron nitride fibre constituted by the coating. The BN may be deposited by reacting boron trifluoride with ammonia at elevated temperature. The carbon fibre may be a porous mass, such as a felt or fabric, and the resulting BN fibre mass may be impregnated by further deposition of BN to produce a dense, solid, BN-BN composite material.
Patent GB-2019649-A (GB)
Title: Imaging devices and systems
IPC: H01L27/146
Filed: 1979-04-06
Abstract: In order to improve the resolution and performance of an imaging device (1) comprising an elongated strip (3) of photoconductive semiconductor material having first (5) and second (7) current electrodes and an associated read-out electrode (9, 9') the strip (3) is modified so that generated photocarriers are caused to drift in a flow path in which their diffusive spread in the longitudinal direction, from the first electrode (5) to the second electrode (7), is limited to a spread substantially less than the diffusion length characteristic of the material. In particular the strip (3) may be modified by a plurality of fine interdigital slots (A) extending alternately from opposite sides of the strip (3) and which, in at least a terminal region (RE) adjacent the second electrode (7), are spaced apart by a distance less than the diffusion length. The device may be used in either a scanned, or a stationary, image system (Fig. 5). <IMAGE>
Patent GB-2023121-A (GB)
Title: Composition and method for scale inhibition
IPC: C02F5/00
Filed: 1979-06-15
Abstract: When a copolymer of styrene sulphonic acid and maleic anhydride or acid, and an organophosphonic acid especially 1-hydroxyethylidene-1,1-diphosphonic acid, are added to boiler water, the formation of scale is inhibited.
Patent GB-2053824-A (GB)
Title: Endless conveyors
IPC: B65G15/14
Filed: 1979-07-19
Abstract: Conveying apparatus for a succession of articles has at least two endless transport means, e.g. belts 2, which grip opposite sides of each article and are driven by mechanically separate driving means, e.g. electric motors 14, 15. Control means 16 which may comprise photo-electric sensing apparatus or like electronic control means are provided to maintain the relative speeds of the driving means, and thereby the transport means, at a constant ratio. A rotary printing head 23 may be provided for printing data on the base of each article, the printing head again being driven by mechanically separate driving means, e.g. an electric motor 20, whose speed is maintained at a constant ratio to the speed of one of the other driving means by further electronic control means. A counting or labelling machine may be provided in place of the rotary printing head. Where the conveying path is straight, as shown, the speeds of the belts 2 would normally be the same. Different speeds may be used in order to turn articles such as bottles in association with a machine for screwing caps on the bottles, or for conveying articles in a curved path. <IMAGE>
Patent GB-2031475-A (GB)
Title: Paper product having a high filler content
IPC: D21H17/33
Filed: 1979-08-02
Abstract: The present invention relates to a process for obtaining a flat product by carrying out a paper-making technique, and to a product thus obtained, wherein, according to the invention, there are added to a fibrous mass, in an aqueous medium, at least one finely divided mineral or organic filler, then three or more successive additions of ionisable polymers, each of opposite polarity from, and preferably also of higher molecular weight than the last.
Patent GB-2031515-A (GB)
Title: Compression-ignition engine with exhaust gas recirculation
IPC: F02D21/08
Filed: 1979-09-06
Abstract: Exhaust gas recirculation is controlled by a valve between the inlet and exhaust manifolds which is actuated by a rod of an operator 17 including a spring loaded piston 28 subject to the pressure of fuel from a low pressure pump. The pressure of fluid applied to the piston is controlled by a spring loaded piston 34 and the force applied by the spring 31 is controlled by a cam 40 in accordance with the setting of a fuel control member which controls the fuel supplied to the engine by the apparatus. The low pressure fuel supply is applied to a port 45 and to the end of the cylinder remote from spring 37 through port 33. If cam 40 rotates to reduce the force applied by spring 37 then piston 34 moves to the right and fluid enters chamber 38 through annular groove 42 and an axial passage and increases the force acting on piston 28. Conversely, fluid is exhausted from chamber 38 to drain port 44. Exhaust gas recirculation is prevented when the engine is cold or when the engine speed is outside upper and lower limits. The amount of exhaust gas recirculated decreases as the engine speed increases. <IMAGE>
Patent GB-2037311-A (GB)
Title: Pulverulent non toxic cleaning agent for textile fittings of large surface area
IPC: C11D11/00
Filed: 1979-11-30
Abstract: A pulverulent non toxic cleaning agent which comprises 70 to 30 parts by weight of a solvent mixture consisting of (a) water and (b) an organic solvent or a mixture of organic solvents selected from one or more terpenic hydrocarbons, a mixture of terpenic hydrocarbons and aliphatic hydrocarbons liquid at 20 DEG C and a mixture of aliphatic hydrocarbons and one or more glycol ether or ester solvents, absorbed on 30 to 70 parts by weight of a pulverulent carrier of which the particle size is between about 5 and 1000  mu . and consisting of starch, flour or woody material.
Patent GB-2038931-A (GB)
Title: Improvements in or Relating to Positive Displacement Pump Systems
IPC: F04C14/02
Filed: 1979-12-04
Abstract: A positive displacement pump system provides first and second delivery passages 11, 12 of which the first passage 11 communicates with a main discharge passage 15 containing a discharge orifice 17. The second delivery passage 12 opens to a valve bore 21 and is in permanently open communication with the first delivery passage through an axial passage 29 in a valve member 20 slidably mounted in the valve bore. Lifting of the valve member with increasing pressure drop across the orifice 17 places the first delivery passage in communication with an overspill port 14. The pressures at the upstream and downstream sides of the orifice are applied against the lower end and the upper end 28 of the valve member so that the valve operates to maintain the pressure difference constant. <IMAGE>
Patent GB-2071069-A (GB)
Title: A method of detecting oxygen and an oxygen sensor therefor
IPC: G01N27/12
Filed: 1980-01-31
Abstract: An oxygen sensing element has a body of chromium-rich zinc chromite and electrodes in contact with it for sensing the electrical resistance. At elevated temperatures, the resistance varies with oxygen concentration. A rare earth oxide dopant, preferably 15% mole percent Lanthanum oxide, stabilises and improves performance.
Patent GB-2045123-A (GB)
Title: Mandrels
IPC: B21C37/02
Filed: 1980-02-21
Abstract: The invention relates to the manufacturing of metal strip from an annular feedstock. An annular mandrel is carried by a headstock spindle of a lathe and includes a tapered bore 5 dimensionally complementary to the headstock spindle; cutting tools 2 protrude from the radially outer peripheral surface of the mandrel and are so positioned that they cut axial grooves in the internal surface of an annular feedstock pressed axially onto the mandrel. <IMAGE>
Patent GB-2045861-A (GB)
Title: Silencer for discharge lines in pneumatic circuits
IPC: F01N1/10
Filed: 1980-03-13
Abstract: A silencer has a sleeve (1) provided with outlet openings (3) for gas introduced through an inlet (2). The sleeve (1) contains particles (6) which are preferably spherical and the gas flow drives them against the openings (3) to form one or more layers provided with apertures for the passage of the gas. The size of these apertures depends on the gas pressure and on the dimensions, shape and elasticity of the particles (6) When the gas stops flowing the layer(s) break(s) up. A grating (7) prevents the particles falling through the inlet (2) <IMAGE>
Patent GB-2048005-A (GB)
Title: Door locking circuit arrangements for motor vehicles
IPC: E05B77/48
Filed: 1980-04-01
Abstract: A circuit arrangement for a central door locking system for a motor vehicle in which a switching element (21, 22) is controlled by the charging current of a capacitor (26) for unlocking purposes and by the discharging current of the same capacitor (26) for locking purposes. <IMAGE>
Patent GB-2049651-A (GB)
Title: Coating Surfaces with Explosive or Pyrotechnic Compositions
IPC: C06B21/00
Filed: 1980-04-23
Abstract: A process for applying a pyrotechnic or explosive composition to a surface, which comprises:   (i) screen printing the composition in the form of a liquid, slurry or paste onto the surface, and (ii) allowing the layer of the composition thus obtained to dry and/or harden.   The process according to the invention is particularly suitable for the production of devices such as delay strips, electric igniters, indoor fireworks or thin layers of explosive material.
Patent GB-2048321-A (GB)
Title: Method and apparatus for laying lap into a can
IPC: B65H54/76
Filed: 1980-05-02
Abstract: A method is provided for laying lap in loops of cycloid form into a can by means of a rotating turntable (53) which possesses a lap guide passage having a passage mouth (55) pointing to the can. The can (11) receives a driving movement in relation to the turntable (53) in such a way that the centre point (M) of the can (11) is guided in a horizontal plane along a continuous planimetric series of lines (12) having intersections (21, 22, 23). In this manner a round or square can may be filled to maximum capacity with the lap. <IMAGE>
Patent GB-2078444-A (GB)
Title: Glow starter switches
IPC: H01H61/017
Filed: 1980-05-02
Abstract: A glow type starter switch for a discharge lamp is provided with a resistive heater coil 8 in series with the starter electrodes 9, 10 and situated inside the glass envelope 5 of the starter. The heater coil 8 is designed to cause the starter to remain closed after closing and reopening several times for about 20 seconds after the supply is switched on. The connection between the heater coil lead and the electrode 9 to which it is joined is made inside the glass envelope 5 of the starter so that only two leads 13,14 need to be brought out through this envelope making the construction simpler and more economic than known glow starters provided with an internal heater coil. <IMAGE>
Patent GB-2051647-A (GB)
Title: An improvement in or relating to electric arc welding
IPC: B23K9/09
Filed: 1980-05-12
Abstract: A method of electric arc welding using a non-consumable electrode (14) and including the step of imparting a modulated movement to the electrode (14) so that is moves in regular increments and produces a continuous weld constituted by a series of spot welds which overlap by a predetermined and regular extent, includes the further step of feeding a filler wire 24 to the weld pool, the movement of this feeding preferably being in step with the modulated movement of the electrode (14). The welding may be carried out in an inert atmosphere and electrode movement modulation may be accompanied by current modulation. <IMAGE>
Patent GB-2047936-A (GB)
Title: Device for stocking money
IPC: G07F5/24
Filed: 1979-09-05
Abstract: A device for stocking money comprises, arranged side by side, compartments (7) open at the top and at the bottom to receive the coins (11) falling down one by one. A sliding plate (13) closes at the bottom the compartments (7) containing the coins (11). A driving device (9, 26) moves the compartments (7), for each coin to be stocked, from one division to another, for returning in the other direction. The stocked coins (11) slide onto the sliding plate (13) and fall at the end of this plate (13) in a guide (14), so as to be returned. The compartments (7) move along a straight line; they may also be arranged on a stocking device having the shape of a wheel. The driving mechanism (9, 26) may have the shape of a Malta cross (26).
Patent GB-2057830-A (GB)
Title: Surgical operating tables
IPC: A61G13/10
Filed: 1980-08-20
Abstract: A cantilever operating table comprises a table top comprising carbon or synthetic organic fibre skins 5 bonded to aluminium side members 4 and a thermo-plastic foam core 6 to render the patients carrying portion of the table top free from metallic support for total accessability of x-rays at all points along its length.
Patent GB-2084881-A (GB)
Title: Breathing device
IPC: B63C11/08
Filed: 1980-09-24
Abstract: A coupling (30) serves to connect a mouthpiece (10) and a buoyancy chamber via pipe (24) to a source of breathable air via (42) such as an air supply cylinder. The coupling (30) includes a tilt valve (38) which is opened automatically in response to suction applied at the mouthpiece (10). The valve (38) can also be opened under manual control by means of button (52) to admit air into the buoyancy chamber via pipe (24) independent of mouthpiece (10) to vary the buoyancy in the chamber. <IMAGE>