baber/WOPTO huggingface dataset:
Patent GB-1363268-A (GB)
Title: Magnetic recording and/or reproducing apparatus
IPC: H04N5/781
Filed: 1971-12-17
Abstract: 1363268 Magnetic disc recording and playback INTERNATIONAL BUSINESS MACHINES CORP 17 Dec 1971 [5 Jan 1971] 58828/71 Heading G5R A magnetic record disc 240 rotates continuously about an axis 212 while a transducer 244 rotates continuously about a parallel but offset axis 210 so as to follow a multiple-turn spiral track on the record disc 240. As shown, a single motor 218 drives the record disc 240 and a supporting disc 242 which carries a plurality of transducers 244, 246 arranged to follow the same or different spiral tracks on the record disc 240. The angular velocity of the record disc 240 is an integral multiple of the angular velocity of the transducers.
Patent GB-1442602-A (GB)
Title: Constructional apparatus for recreational and/or educational  and display purposes
IPC: A63H33/04
Filed: 1972-12-20
Abstract: 1442602 Display devices MOULDED PLASTICS (BIRMINGHAM) Ltd 21 Dec 1973 [20 Dec 1972] 58956/72 Headings G5G and G5C [Also in Divisions A5-A6] A construction set which may be used as a toy or for display, educational, &c. purposes comprises a stiff, plastics &c. board 1 having a notched periphery 4 defined by a downwardly depending flange 5, and a series of equispaced holes 6 across its top to receive pegs, the notched periphery being a friction fit with a similar notched periphery of one or more like boards. Stiffening webs (14), Fig. 2 (not shown), extend from the centre of the hollow underneath of the board to the flange 5. The pegs are provided on elements 15, e.g. rings, strips &c. which are thus mountable on the boards. A number of the boards may be fitted together to make a toy hand cart, Fig. 6, with rings 15 simulating wheels. Alternatively pegs 16, Fig. 9, may be provided on an axle hub 22 journalling a wheel 21. In another form, pegs 16, Fig. 7, to be inserted in the board holes 6, are provided on the bottom of an open-topped tray 17 receiving a plate 18 bearing a number or other markings. Pegs may be provided on geometric shapes, strips, flower, leaf &c. shapes or letters, figures, symbols, signs &c. to be mounted on the board.
Patent GB-1390285-A (GB)
Title: Circuit arrangement for deriving output signals from a  resistive bridge network
IPC: G01R17/12
Filed: 1972-12-21
Abstract: 1390285 Resistance bridge W KRAUT [trading as BIZERBA-WERKE WILHELM KRAUT KG] and O PICHL and E SCHULTE [trading as DATRON-ELECTRONIC PICHL & SCHULTE KG] 21 Dec 1972 [23 Dec 1971] 59034/72 Heading G1U A resistance (e.g. strain gauge) bridge 1, Fig.1, is energized by substantially rectangular pulses A, Fig.2, from an oscillator 2, Fig.1, amplitude stabilized by a reference source 3, and the output B from the bridge is rectified 5 to produce a signal C which is sampled and held 6 by pulses D derived from the oscillator 2 to give a steady output signal E which is free of any disturbances from the  transient signals present in signal C. By this arrangement it is possible to enjoy the advantages of an A.C. amplifier without suffering from the spurious transients which long leads and the like may introduce.
Patent GB-1385349-A (GB)
Title: Pesticidal dithiophosphoric acid esters
IPC: A01N57/16
Filed: 1972-12-22
Abstract: 1385349 Pesticidal phosphorus containing benzotriazine derivatives CIBA-GEIGY AG 22 Dec 1972 [23 Dec 1971 7 Nov 1972] 59509/72 Heading C2P Novel compounds of Formula I  where R 1  is C 1-3  alkyl substituted by C 1-5  alkoxy or alkylthio and R 2  is C 1-5  alkyl may be prepared by reacting a compound of Formula II in the form of an alkali metal, ammonium or C 1-5  alkylammonium salt or in the presence of an acid-binding agent with 3-chloromethyl- or 3-bromomethylbenzotriazinone. The compounds of Formula I have insecticidal and acaricidal properties and may be used as the active ingredients in conventional pesticidal compositions. The invention also comprises a compound of Formula I in a container bearing instructions for use of the compound as a pesticide.
Patent GB-1401019-A (GB)
Title: Portable powered tool for security fasteners in place
IPC: B25B23/10
Filed: 1972-12-28
Abstract: 1401019 Power tool with fastener feed KAYNAR MFG CO Inc 28 Dec 1972 [30 Dec 1971] 59818/72 Heading B3N A portable powered tool for delivering and drivably rotating threaded female fasteners 13 comprises a supporting frame 10, a tool socket 35, supply means for delivering fasteners at a discharge station 14, powered transfer means, shuttle piston 23, to transport a fastener from the discharge station to a driving station 16, drive motor means for driving said tool socket, first power circuit means selectively actuable to establish communication with a source of power and for powering said transfer means to move said transfer means between the discharge and the driving station, and second power circuit means operable responsively to movement of said transfer means for powering said drive motor means. Feed of a fastener from the delivery station is by air passing through part 32 to force piston 31 forwardly. Drive to socket 35 is by shaft 40 and cylinder 30. In operation depression of trigger 17 causes piston 23 to move a nut to the delivery station. When this occurs air is allowed to pass to the drive means and to piston 31. Fasteners 13 are fed to discharge station 14 by air pressure. In a modification tube 12 is replaced by a carrier having a plurality of tubes circumferential spaced thereon.
Patent GB-1328129-A (GB)
Title: Milling cutters
IPC: B23C5/22
Filed: 1970-12-17
Abstract: 1328129 Milling cutters VALERON CORP 17 Dec 1970 [30 Dec 1969] 59840/70 Heading B3K A milling cutter, such as an end mill, comprises a shank portion 10 with a transverse slot 18 in its terminal end for the reception of replaceable cutting inserts 12, 14, an insert locator 24 located centrally within the slot and whereby the pair of cutting inserts can be radially positioned by engagement with the locator, the locator being thinner than the slot so the screw clamping means 16 extending transversely to the slot reduces the slot opening and clamps the inserts in the slot. The slot bottom is formed with a concave radius of curvature 20 and a convex chamber 22. The locator is engaged with the shank by a peg 26 which extends from the locator into a bore 28 in the slot bottom and the locator has arcuate sides 32, 34 to provide seating and clearance for rear surfaces of the respective inserts. The clamping screw 16 has a left and right hand thread at its respective ends and engages a threaded bore 40 on one side of the slot only, a nut 42 engages the other end of the screw to effect clamping of the inserts, the nut being located in a counter bore 44 in the other side of the slot and retained in its clamping position by a set screw 46. In an alternative embodiment the locator is provided with radially extending seating surfaces which abut the ends of the cutting inserts, Fig. 6 (not shown).
Patent GB-1388108-A (GB)
Title: Extensometers
IPC: G01B11/16
Filed: 1970-12-30
Abstract: 1388108 Extensometer RUBBER & PLASTICS RESEARCH ASSOCIATION OF GREAT BRITAIN 29 March 1972 [30 Dec 1970] 61834/70 Headings G1A and G1S An extensometer comprises a carriage, for mounting on a specimen under test, having two members which move relative to one another as the specimen is stretched or compressed under load, the relative movement between them being measured by a photo-electric detector sensing a moire fringe pattern from two optical gratings one mounted on each member. In figure 1 a specimen 32 supports two carriages one on either side each comprising two pairs of members 10a, 12a and 10b, 12b. The members of both pairs have a step 14, 16 in their middle whereby pointers 24, 26, 28 and 30 carried by each member can bear against the surface of the specimen. Roller bearings 22, constrained between pairs of members by spring loaded washers 23, permit the members of a pair to move relative to one another if the specimen is longitudinally extended or compressed. The two carriages are gripped against the specimen by upper and lower pairs of rods 36 having adjusting screws 38 and which are connected to the outer carriage members by spring members 34. Each carriage carries a pair of optical gratings, one of the pairs 46a, 46b mounted on one member being angularly adjustable so as to be slightly inclined to the other grating of the pair 44a, 44b rigidly fixed on the other member. The first order diffraction moire fringe pattern generated by each pair is sensed by a pair of mark/space photodiodes which generate pulses proportional to the relative movement of the members of the respective carriage. A logic circuit may be provided to determine from the photo-electric output the direction of movement. The optical grating system is illustrated in Fig. 3.
Patent GB-2004249-A (GB)
Title: Floor conveying vehicle with a hydraulic hoisting piston-cylinder assembly for a hoisting frame mechanism
IPC: F15B21/14
Filed: 1978-08-18
Abstract: In a battery powered floor conveying vehicle with hydraulic hoisting means 5, 8 and auxiliary drive mechanisms 85 an improved energy utilization by means of an additional servo storage tank 61 in a servo storage circuit that is separate from the motor and pump circuit of the hoisting means and adapted to supply the hydraulic power for operating the auxiliary drive mechanisms. The servo circuit includes pressure monitoring, line, valve and control means for connecting the servo circuit under predetermined operative conditions to the motor and pump circuit, for maintaining a set pressure level in the servo storage circuit, especially by recharging the same with pressurized fluid discharged from the hoisting means 5, 8. <IMAGE>
Patent GB-2009575-A (GB)
Title: Crop Harvesters
IPC: A01D57/22
Filed: 1978-09-18
Abstract: The present invention is concerned with separating, without damage when using the mower of a crop harvester, stalks to be mown from adjacent stalks not being mown, the mower comprising crop pick-up apparatus 4 forwardly of the mower apparatus 3 and having pick-up claws for raising and transferring rearwardly and upwardly the planted stalks within the mowing width; and a stalk-divider 8 located laterally of the pick-up apparatus and having claws 8B for separating planted stalks to either side by movement of the claws rearwardly and upwardly and wherein the improvement to avoid damage comprises providing the claws 8B with a sweepback angle ( theta ) with respect to the direction of movement thereof so that the tip end portion of each claw is located rearwardly of its base portion. <IMAGE>
Patent GB-2036566-A (GB)
Title: Stringed rackets
IPC: A63B49/00
Filed: 1978-12-13
Abstract: To modify existing designs of racket or to make a racket using natural or man-made materials or combinations of both, but incorporating tubes or struts or cylinders which will allow the movement of actual weight or thrust or thrust caused by the compressibility of liquids towards the head of the racket. The weight or thrust transference is from the centre of gravity towards the head of the racket thus increasing the speed of the head and hence the force exerted on a ball or shuttle-cock when a stroke is played. On completion of the stroke the weights return towards the centre of gravity, and where liquids are used thrust is nullified. If desirable weights of a magnetisable material can be used and held in place near the centre of gravity by an Electro- Magnet, power-pack and switch to be released and held as the player desires.
Patent GB-2013188-A (GB)
Title: Herbicidally active chloracetanilides, a process for their manufacture and their use
IPC: C07C67/00
Filed: 1979-01-15
Abstract: Novel chloracetanilides of the formula I   <IMAGE> (wherein R1, R2 and R3 each represents H, C1-4-alkyl, halogen or F3C, R4 represents C1-6-alkyl and n is 1, 2 or 3) and their manufacture from chloroacetyl chloride and the appropriate sec-amine. The novel compounds of the formula I have both a herbicidal and a growth-regulating action, and accordingly may be made up with suitable carriers into herbicidal preparations and may be used for treating living plants and areas of land.
Patent GB-2022429-A (GB)
Title: A mixer head
IPC: B29B7/00
Filed: 1979-05-14
Abstract: A mixer head 10 for mixing two or more flowable components of a synthetic plastics material is provided with a further inlet 21, in addition to those inlets 16, 17 for the flowable materials, to enable an additive such as glass fibres to be introduced directly into the mixing chamber 11 without passing through the feed system for the flowable materials. The further inlet may comprise a feed passage extending axially through the cleaning plunger 19 and a reciprocable piston 22 for pushing the additives out of the passage into the chamber. The chamber 11 may be lined with a replaceable wear bush 27. <IMAGE>
Patent GB-2024838-A (GB)
Title: Bis-isoindoline pigments, processes for their manufacture and their use
IPC: C09B57/04
Filed: 1979-06-15
Abstract: Isoindoline pigments of the formula   <IMAGE> or of a formula which is a tautomer thereof, wherein R represents a direct bond or an aliphatic, cycloaliphatic, aliphatic-cycloaliphatic, araliphatic or aromatic radical, R1 represents a hydrogen atom or an alkyl group of 1 to 4 carbon atoms, or, if R represents an ethylene group, both R1s together also represent an ethylene group, R2 and R3 represent hydrogen atoms, alkyl groups of 1 to 4 carbon atoms or phenyl groups which are unsubstituted or substituted by methyl groups or halogen atoms, X represents an oxygen atom or a NH group, and Y represents an oxygen or a sulfur atom or a NH group dye plastics in fast yellow to brown shades.
Patent GB-2023981-A (GB)
Title: Flushing system for aquaculture tank
IPC: A01K61/00
Filed: 1979-06-22
Abstract: A system is provided for removing solid wastes from the bottom of an aquaculture tank for the rearing of aquatic animals in a stacked arrangement of cages, in which a minimum of water is removed during the process such that the tank in which the cages are arranged need not be completely drained and in which the water level never drops below the animal in the topmost cage. The waste removal system includes a tapered, funnel- shaped bottom member 14 for the aquaculture tank and a fast-opening and closing valve 20 at the base of the funnel-shaped bottom member. Settled solid waste is dislodged and removed from the tank in a double pulsed flushing operation in which the valve is first opened and then rapidly closed to produced a pulsed and interrupted turbulent wave to break up and put into a slurry suspension the waste in the funnel portion of the bottom member. The valve is opened the second time to drain the dislodged waste and a minimum amount of water from the tank so as to permit tank cleaning without removal of the animals from the tank. <IMAGE>
Patent GB-2036785-A (GB)
Title: Utilizing Pyrolysis Oil from a Scrap-Rubber Pyrolysis
IPC: C08L95/00
Filed: 1979-07-09
Abstract: The oil resulting from scrap-rubber pyrolysis, and boiling above 160 DEG C, is added to bituminous compounds. The boiling point must be above the manufacturing temperature of bitumen, which fluctuates between 160 DEG C and 200 DEG C. Other synthetic materials (e.g. styrene-butadiene copolymer) may be dissolved in the oil before mixing it with bituminous compounds.
Patent GB-2053736-A (GB)
Title: Trommel screen
IPC: B07B1/55
Filed: 1979-07-20
Abstract: Wet screening apparatus comprises a trommel 1 of screening material 21 disposed upon a supporting framework which is rotated about a substantially horizontal axis, a container 26 for liquid in which the trommel is partially immersed, the container being provided with overflow means 27 to maintain a substantially constant level of liquid in the container, an apertured tube 18, closed at one end and connected at the other end to a feed supply for introducing feed suspension under pressure into the inside of the trommel, the aperture(s) being positioned so that feed suspension impinges on the screening material 21 above the level of liquid in the container, means 22 for removing a film of liquid and oversize particles from the inner surface of the screening material and means 25 for discharging oversize particles from the inside of the trommel. The means 22 may comprise a resilient flexible blade and/or an air jet or water spray. <IMAGE>
Patent GB-2033449-A (GB)
Title: A wall tie for supporting insulation in a cavity wall
IPC: E04B1/41
Filed: 1979-10-12
Abstract: A wall tie comprises an elongate central portion (14) which extends, in use, within the cavity between two leaves of a cavity wall and which interconnects a pair of end portions (16, 18) securable in opposite leaves of a cavity wall and a disc or plate shaped insulation locating member (12) mounted on or secured to the elongate central portion intermediate the ends thereof and extending transversely to the longitudinal axis of the central portion. At least one formation (20, 22) which may be substantially V-shaped, is provided in the central portion and displaced to one side of the locating member for encouraging moisture to drip off the central portion into the cavity. <IMAGE>
Patent GB-2044672-A (GB)
Title: Laminating Process and Apparatus
IPC: B32B7/03
Filed: 1979-10-16
Abstract: A process for forming a panel from two or more thermoplastics sheets comprising the steps of separately feeding the sheet simultaneously through a controlled temperature furnace so as to cause expansion thereof, heating at least opposed surfaces of adjacent sheets to be further heated to their melting temperature and then causing said sheets to converge together until they abut one another whereupon the opposed surfaces which have been further heated fuse or weld together, the panel thus formed then being calibrated and cooled. The invention also relates to an apparatus comprising various means for carrying out such a process and to a panel thus produced. <IMAGE>
Patent GB-2033903-A (GB)
Title: Monoesterification of substituted pyrrole diacids
IPC: C07D207/34
Filed: 1979-10-18
Abstract: A process for the production of a compound having the formula:   <IMAGE> wherein R1 and R2 are each hydrogen or hydrocarbyl groups having up to 20 carbon atoms and R3 is an alkyl or alkaryl group of up to 20 carbon atoms, comprises reacting a compound of the formula:   <IMAGE> with an anhydrous alkanol of the formula R3OH in the presence of a strong acid ion exchange resin esterification catalyst under esterfying reaction conditions.
Patent GB-2066056-A (GB)
Title: An extending table
IPC: A47B1/08
Filed: 1979-11-12
Abstract: An extending table (1) has two permanent end sections (2, 3), which are movable towards or away from each other and have at least one leg (9, 10, 11, 12) fixed thereto, and at least one removable intermediate section (4). The table (1) is also provided with compressing means (5, 6) for applying or relieving a compressive stress between the or each adjacent pair of sections (2, 3, 4) when in an extended or unextended state, the table only having usable structural stability when the compressing means apply the compressive stress. Preferably the compressive means (5, 6) comprises at least one extendable, e.g. telescopic, elongate member (18, 19) fixed at one of its ends (18a) to one end section (3) and a tensioning device (24, 50) associated with the or each elongate member fixed to the other end section (2) and actuable to apply tension to the associated elongate member. <IMAGE>
Patent GB-2035681-A (GB)
Title: A coated light bulb for a headlamp
IPC: H01K9/08
Filed: 1979-11-12
Abstract: In a lamp bulb (2), suitable for use in a headlamp, and which contains a low beam filament (5) and a high beam filament (4), the upper forward end of the bulb (2) is coated with an opaque coating (8) in order to shield veiling glare radiation from the low beam filament when the bulb is used in a headlamp. <IMAGE>
Patent GB-2043132-A (GB)
Title: Mine arches
IPC: E21D11/22
Filed: 1979-12-31
Abstract: A multi-part circumferentially yieldable mine arch comprises channel-section segments 5, 6 which overlap and internest in the same orientation, and connecting means 10, 10a which accept only the transverse forces occurring at the overlap. For setting and controlling the resistance to yielding a number of clamps 13 are provided which are attached to the channel- section flanges, against which the ends of the channel-section segments 5, 6 bear. <IMAGE>
Patent GB-2044240-A (GB)
Title: Method of and apparatus for sewage treatment
IPC: C02F1/46
Filed: 1980-02-15
Abstract: A method of treating sewage comprises separating solids (3) from the sewage (1), accumulating and averaging the separated sewage (5), and further subjecting averaged sewage (7) to electrochemical treatment so as to produce a foam layer (9), forming in the resulting foam layer (9) air counterflows by means of rarefaction provided by a pump (10) at the solids separation stage such that the flows of air (11) and foam are directed from the peripheral areas of the foam layer (9) towards the central portion thereof and further onto the solids separation stage, while treated liquid (14) is directed towards the area underlying the central portion of the foam layer (9) and subsequently withdrawn therefrom. <IMAGE>
Patent GB-2064368-A (GB)
Title: Building panels
IPC: E04D3/35
Filed: 1980-02-18
Abstract: Chip- or particle-board or plywood panels for roofing is protected by a first bitumen-rich layer of bitumen followed by a layer of bitumen-poor, i.e. highly extended or filled, bitumen or asphalt. The board can with advantage have a moisture- resistant bond such as a phenol formaldehyde or melamine and be protected with the bitumen only on one face and possibly the edges. The bitumen-rich initial layer provides a good adhesion for the second bitumen-poor layer.
Patent GB-2055081-A (GB)
Title: Improvements relating to conveyors for use in handling cigarettes
IPC: A24C5/35
Filed: 1980-02-29
Abstract: A device for securing a continuous layer of cylindrical rod-like articles, such as cigarettes, to an ascending conveyor, the rods being disposed transversely to the direction of movement of the conveyor comprises a suction nozzle (3) arranged along an edge of the conveyor (1) and having an elongate opening (4) extending along the conveyor (1). The nozzle (3) draws air across the face of the conveyor (1) and thus through the channels (6) defined by adjacent and contiguous rods (2) and conveyor (1), and creates a partial vacuum therein, holding the rods (2) to the conveyor for movement therewith. The ends of the rods (2) may be drawn into contact with opening (4) or a perforated belt located in front of the opening and the height of opening (4) is preferably selected to enhance either the air flows through channels (6) or through the cigarettes (2) for drying purposes. <IMAGE>
Patent GB-2044907-A (GB)
Title: Heat pump, particularly vapour- compressing jet type heat pump
IPC: F25B30/04
Filed: 1980-03-14
Abstract: An adsorption or re-adsorption vapour-compressing jet-type heat pump particularly for generating heat for heating a building comprises a generator (1) which under the action of heat supplied from a burner (2) causes refrigerant to be driven out of a solvent. Means to feed the refrigerant or the strong solution coming for absorber (52) into the generator, feed the weak solution coming from a degasifier to the generator, or feed the condensed refrigerant from condenser (11) into the generator comprises a pump chamber, which is adapted to be heated by the generator and to be cooled by a consumer (33) and which is connected by check valves (7, 16) to the condenser and the generator.   <IMAGE>