baber/WOPTO huggingface dataset:
Patent GB-680787-A (GB)
Title: Improvements in self-binding flax pulling machines
IPC: A01D45/06
Filed: 1951-04-05
Abstract: 680,787. Flax-pulling machines. BERTELSEN, B., and PEDERSEN, T. April 5, 1951, No. 7908/51. Class 6(iii) In a self-binding flax pulling machine the binder apparatus is pivotally attached at the side of the machine. As shown the binder 5 is mounted on two wheels 25 and the binder mechanism is driven by means of a detachable chain 15 from the landwheel 4 of the flax pulling machine 1. The binder is pivotally attached to the machine 1 by pins 8 and is provided with a coupling 27 for attachment to the rear of the machine 1 for transport purposes. The wheel 25 nearest to the machine 1 is raisable during working by means of a plate 26.
Patent GB-942948-A (GB)
Title: Fire-resistant functional fluids
IPC: C10M169/04
Filed: 1960-03-07
Abstract: A fire-resistant fluid, particularly suitable as an hydraulic fluid, a lubricant, or a heat transfer medium comprises (a) a major proportion of a chlorinated diphenyl containing 20-60%, preferably 40-55%, by weight of combined chlorine, and (b) a lubrication improving proportion, e.g. 0.1-1% by weight of the fluid, of a salt of formula <FORM:0942948/C3/1> where M is a polyvalent metal of valency n such as lead, magnesium, cadmium, strontium, aluminium, mercury, tin or nickel but preferably zinc, calcium or barium, R1 and R2 are each a saturated aliphatic or alicyclic, aromatic or substituted aromatic group of 1-30, preferably 3-15, carbon atoms; usually, where R1 is an alkyl group of 5 or less carbon atoms, R2 is an alkyl group of more than 5 carbon atoms.  A particularly suitable salt (b) is zinc O : O-dihexyldithiophosphate.  The fluid may also contain other chlorinated liquid hydrocarbons such as trichlorobenzene (e.g. in an amount up to 15% of the total chlorinated aromatic hydrocarbon content) or partially chlorinated terphenyl in total amounts up to 50% by weight of the total chlorinated aromatic hydrocarbon content.  The composition preferably also contains, as corrosion inhibitor, 0.2-1% by weight, of a reaction product of an alkenyl, sulphurized alkenyl, alkyl or dihaloalkyl succinic acid or anhydride with the condensate of 1 mol. of a polyalkylene polyamine and (X-1) mols. of a monocarboxylic acid (preferably containing 10-30 carbon atoms) or its anhydride or acid halide, X being the number of amino nitrogen atoms in the polyamine; the alkyl or alkenyl substituents of the succinic acid should contain 8-18 carbon atoms.  The preferred product is one obtained by reacting 2 mols. of dodecenyl succinic anhydride with the condensate of 1 mol. of oleic acid and 1 mol. triethylenetetramine.  The compositions may be formed into greases by the addition of sodium, barium, lithium, potassium or calcium soaps or by addition of a C16-18-dialkyl quaternary ammonium salt of montmorillonite.  Other additives which may be incorporated include polymethacrylates; alkylated polystyrenes; condensates of ethylene or propylene oxides with ethylene, propylene or butylene glycols or with alcohols such as butanol, octanol, decanol or tridecanol; pour point depressants; oxidation inhibitors; detergents; corrosion and rust inhibitors; anti-wear agents; lubricity agents; and anti-foaming agents such as silicone polymers. Specification 684,640 is referred to.
Patent GB-683363-A (GB)
Title: Improvements in or relating to apparatus for cutting right-angled and acute-angled edge angles on metal sheets
IPC: B23D15/10
Filed: 1951-04-05
Abstract: 683,363. Shearing. BRAUCHLI, E. April 5, 1951 [May 23, 1950], No. 7974/51. Class 83 (iv). In a reciprocatory-blade shearing machine a work-table 7 adjustable for making bevel cuts is pivoted on pins 8 below a lower fixed shear blade 2 and is inclined by a fluid cylinder 10 pivoted to the table and to the frame 6. The lower blade carrier 2a and the end of the table respectively are convexly and concavely curved to allow of contact during adjustment. A presser 5 has a surface 5a bevelled to agree with maximum inclination of the table.
Patent GB-1247955-A (GB)
Title: Improvements relating to hall-effect elements
IPC: H03F1/34
Filed: 1969-02-13
Abstract: 1,247,955. Hall plate bi-stable and amplifier arms. SIEMENS A.G. 13 Feb., 1969 [20 Feb., 1968], No. 7977/69. Heading H3T. [Also in Division G1] A Hall plate 5 has its output electrodes 3, 4 connected to the input terminals of a positive or negative feedback amplifier 7, the connection 8 to the input terminal to which the feedback is applied having no series impedance. The internal resistance Rs/2 and Rs/2 of the Hall plate output varies with temperature and this may be arranged to so change the feedback as to compensate Hall voltage changes with temperature. Positive feedback may make the circuit bistable and the offset-voltage due to Hall current between 9 and 10 through the plate resistance R 0  may be controlled by inserting a potentiometer 15, 16 in place of connection 11, 12. In Fig. 4 (not shown) the feedback is negative and the input/output characteristic is linear. Magnetic field for the plate may be produced by a coil 6 and the device may be used for proximity detection or flux measuring or monitoring in electrical machines and particle accelerators. '
Patent GB-1028279-A (GB)
Title: Control arrangements for profile copying machine tools
IPC: B23Q35/123
Filed: 1965-02-24
Abstract: 1,028,279. Electric copying machines. SIEMENS-SCHUCKERTWERKE A.G. Feb 24, 1965 [Feb 26,1964], No. 8056/65. Heading G3N. In a copying machine tool a tracer signal is evaluated to give the magnitude and direction of tracer feed and control feed in a first co-ordinate system which is rotated by a follow-up system in such a manner that the direction of control feed is tangential to the contour of the master, and the machine is controlled by resolving the first coordinate feeds into components of a second coordinate system fixed relative to the machine. As shown, a tracer assembly 2 comprises an inductive arrangement fed from a A.C. generator 1 and having a bridge network the tracer feed output of which represents in sign and magnitude the deviation of the tracer assembly from a desired path around a master template, not shown. A control feed output is derived by rectifying the tracer feed signal in a rectifier 3 and controlling with this signal the output of an amplifier 4. The tracer and control feed signals are fed through ganged potentiometers to the mechanically-coupled rotor windings of resolvers 7, the quadrature outputs of which are fed through rectifiers 16-19 to amplifiers 20,21 to produce X and Y co-ordinate signals in a system fixed relative to the machine to be controlled, energizing the fields of Ward-Leonard generators 22, 23 feeding motors 24,25 driving the machine. For reciprocal milling in a Zaxis,a relay 31 is actuated to feed a signal from winding 11 of the resolver 7 to an amplifier 33 to control a Ward Leonard generator 34 energizing a motor 35,the resolver rotors being suitably positioned to give a maximum output in the winding 11. The control directions are changed between X and Y areas by a relay 32 according to the direction in which the lines are to lie. The bridge output, representative of tracer deflection, is fed through a demodulator 26 to a three-point trigger amplifier 27 whereby above and below a predetermined value of tracer feed a reversing gear 28 is actuated to cause rotation of the coupled rotors of the resolvers 7, 8 by a motor 29 so that the tracer deviation is maintained in a plane at right angles to the contour of the master template A relay 30 reverses the outputs of amplifier 26 to reverse the direction of movement around the template. It is stated that the gear 28 and motor 29 can be replaced by a D.C. motor having windings fed from the demodulator 26.
Patent GB-647089-A (GB)
Title: Improvements in elastic fluid power plants
IPC: F02C3/055
Filed: 1948-03-18
Abstract: 647,089. Elastic-fluid power plants. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN. March 18, 1948, No. 8067. Convention date, May 22, 1947. [Classes 110(ii) and 110(iii)] In a plant comprising one or more powergiving engines of the positive-displacement type and a separate compressor-driving engine, the conduits supplying both, or all engines with working-fluid are in open communication so that the decreasing speed of the power-giving engines allows an increase in supply of fluid to the compressor-driving engine to increase the torque developed by the power engine. In Fig. 1 the power-giving engine 14 and the compressor engine 12 are of the meshing screw types such as described in Specification 645,848. Fluid, usually air, is taken through an inlet 18, compressed into a chamber 28 and forced through cooling channels in the engine rotor from ducts 32, 52. The air thus heated passes through pipes 30, 36 to a combustion chamber 16, with a liquid or gaseous fuel supply 38, the combustion gases flowing through pipes 40, 42 to the screw engines 12, 14 respectively. Exhaust gases from ports 58, 60 may pass to atmosphere or to a regenerator. As the engine 14 slows down under heavy load on its shaft 50, the gas flow through the pipe 42 is decreased and that through the pipe 40 increased to increase the speed of the engine 12 and thus increase the flow of air through the compressor 10. The compressor may be of any type and the engine 12 need not be of the displacement type but may be a gas turbine. Fig. 4 shows another arrangement having a gas turbine 66 driving a compressor 10 and two combustion chambers 68, 70 with a common supply 74 of compressed air. Air is taken in at 18, compressed and delivered through a pipe 72 leading to the cooling system of the power engine 14. Combustion gases flow through pipes 80, 82 to the turbine 66 and engine 14. Exhaust ports 84, 58 are provided, leading to atmosphere or to regenerators. Part of the compressed air may byepass the cooling systems and pass directly to the combustion chamber as by way of a pipe 86 with valve 88. The plant may be used for traction purposes, oil-well drilling, power shovels and the like where a large starting torque in wanted. Compressed air may be mixed with working fluid on its way to a turbine or engine.
Patent GB-313897-A (GB)
Title: Improvements in the manufacture and production of acetone
IPC: C07C45/00
Filed: 1928-03-16
Abstract: 313,897. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 16, 1928. Acetone is prepared by passing acetaldehyde and steam at a temperature of 350-500‹ C. over a catalyst consisting of zinc or a zinc compound, to which may be added other metals (or their compounds), the acetates of which yield acetone when heated. The speed of the reaction mixture oven the catalyst should be so high that no decomposition of the acetone occurs. Catalysts specified comprise oxide, carbonate or acetate of zinc, together with aluminium, tin or other heavy metals or their compounds or basic salts; the oxides of aluminium, magnesium or alkaline earth metals are particularly suitable as additions; natural substances such as bauxite and calamine are also mentioned; activators such as vanadium pentoxide, manganese, dioxide or chromiumthallium compounds, or carriers may be present. Specification 302,759 is referred to. According to the Provisional Specification, the catalysts may consist of oxides, carbonates, or acetates, &c. of alkaline earth metals, zinc, tin, magnesium, aluminium, &c. or finely-divided metals such as lead or iron, or iron oxide, thorium oxide, or double salts of thorium with alkalis or alkaline earths.
Patent GB-427702-A (GB)
Title: Improvements in or relating to adhesives, and the adhesive sheets or tapes employing said adhesives
IPC: C09J7/38
Filed: 1933-07-22
Abstract: A water-insoluble normally tacky adhesive contains a natural resin and unvulcanized rubber in the proportions of 1 to 2 parts of resin to 2 to 1 parts of rubber and a plasticizer or antioxidant of the group beta-naphthol, aldol - alpha - naphthylamine, phenyl - beta - naphthylamine and symmetrical di - beta - naphthyl - para - phenylene - diamine.  The adhesive may be applied to suitable backing material as described in Specification 427,700.ALSO:A water-insoluble normally tacky adhesive contains a natural resin and unvulcanized rubber in the proportions of 1 to 2 parts of resin to 2 to 1 parts of rubber and a plasticizer or antioxidant of the group beta-naphthol, aldol-alpha-naphthylamine, phenyl-beta-naphthylamine and symmetrical di-beta-naphthyl-para-phenylene-diamine.  The adhesive may be applied to suitable backing material as described in Specification 427,700.
Patent GB-404168-A (GB)
Title: Improvements in or relating to apparatus for twisting textile filamentary material
IPC: D01H1/00
Filed: 1933-03-17
Abstract: 404,168. Twisting and doubling apparatus for imparting two twists per revolution. SOC. ITALIANA PIRELLI, 21, Via Fabio Filzi, Milan, Italy. March 17, 1933, Nos. 8187 and 8188. Convention dates, March 18, 1932 and April 28, 1932. [Class 120 (ii).] In apparatus for twisting or twisting and doubling cotton and like rovings, slivers, yarn, strand, cable, and like material wherein the yarn is drawn in the form of a loop from a bobbin on a rotatable frame, the bobbin or bobbins are stationarily mounted in the frame and with the frame are overhung from one end, and the frame is rigid and extends beyond the ends of the bobbins at its unsupported end, the yarn or the like passing to the frame so that it is twisted before it is looped. The bobbin or bobbins preferably are of cop form, but may in the form of a cheese, Fig. 3 (not shown), and are mounted on a stationary carrier 2 carried by a driven spindle 8 provided with a flange 13 to which the twisting-frame 14 is secured, the yarn or yarns passing through a tension device 16 of any convenient form, around a guide 15, along the frame and through an axial hole in the spindle 8 to a delivery guide roller 24. As shown, the tension device comprises a pin 17 slidably mounted in a sleeve 18 and carrying guiding-means engaged by the yarn against the pull of a spring 19. The apparatus may be arranged in groups of three driven by gearing 32, 35, 36, as shown in Fig. 2, the twisted and doubled yarns from each group being doubled, and twisted together by ring twisting-apparatus 40, and may be used in machines for dyeing, waterproofing or otherwise treating the twisted yarns.
Patent GB-497727-A (GB)
Title: Alternating current signalling or control system, applicable particularly to telephone systems
IPC: H04M7/10
Filed: 1937-03-19
Abstract: 497,727. Exchange systems. COMPAGNIE DES TELEPHONES THOMSONHOUSTON. March 19, 1937, No. 8189. Void. Convention date, March 31, 1936. [Class 40 (iv)] In a system in which signals are sent over a line connecting two stations A, B by interrupted alternating current, the rate of interruption of the signals from A being more rapid than that of the signals from B, the effectiveness of a signal from B is not impaired by the simultaneous transmission of a signal from A. The A.C. generators 25, 44 are connected to the line by relays 1, 3 which are intermittently operated over interrupters 24, 43 when the corresponding contacts 23, 42 are closed. The signals are received by relays 2, 4 and the receiving relay 2 at station A when operated disconnects relay 1. On account of the less rapid interruptions of the signals from station B, a signal initiated thereat while a signal is being transmitted from A passes to relay 2 without substantial interference, whereas the signal from A is intermittently stopped. It may be arranged that relay 2 holds throughout the signal and cuts off relay 1 completely. The invention may be applied to a system in which A represents an automatic exchange and B a manual exchange. The signal from A controls a supervisory lamp to indicate that the subscriber has hung up, whereupon a signal is sent from B to bring about release.
Patent GB-1157406-A (GB)
Title: Method and Apparatus for the Manufacture of Reinforced Glass
IPC: C03B18/12
Filed: 1968-02-20
Abstract: 1,157,406. Reinforced glass sheet. COMPAGNIE DE SAINT-GOBAIN. 20 Feb., 1968, No. 8206/68. Heading C1M. Reinforced glass sheet is manufactured by forming a continuous ribbon of glass 4 on a bath 1 of molten metal 3 permitted to achieve a desired uniform width and thickness, continuously inserting metal reinforcement 9 into the formed and moving glass ribbon, maintaining the temperature of the ribbon of glass above 900-950 C. as it travels on the bath for a time sufficient to give a fine polished upper surfaee and then cooling until the ribbon is sufficiently rigid to be removed from the bath and conveyed to an annealing lehr without damage. A grooved roller 7, driven by cable 36 from a motor 34, presses the metal wires or mesh reinforcement 9 into the glass ribbon over a bar 5, e.g.. of graphite, immersed in the molten metal 3 and with openings 6 for flow of the molten metal. The wire mesh 9 from either feed roller 32 or 33 is passed between rollers 46 which may shape the mesh and over a guide roller 31 to a lock 15a fed with inert or reducing gas and thence to roller 7. The lock 15a can be closed at the top by a bar when not in use. The height of the roller 7 is adjustable so that the depth of penetration of the wire can be controlled. An arcuate cooler 30 and the inside of the hollow roller 7 are fed with cooling liquid from pipes 43.
Patent GB-1506593-A (GB)
Title: Process and device for measuring particulate matter in suspension
IPC: G01J3/00
Filed: 1975-02-27
Abstract: 1506593 Measuring suspension concentration BEHRINGWERKE A G 27 Feb 1975 [27 Feb 1974] 8266/75 Heading G1A A method of measuring the concentration of an antigen-antibody complex comprises shining a parallel beam 11 from laser 1 through the suspension and measuring the quantity of forwardly scattered light outside a first solid angle but within a second solid angle. Beam 11 from He-Ne laser 1 of 1 or 3 mW passes through diaphragms 2 and 3 to a blackened tube 5 as a light trap via cuvette 4 containing an antiserum with antibodies with previously added ethylene glycol and an antigen. The light trap may also be a mirror, a prism or light conductor or a hole between a ring of photo-cells and is 1À1 to 1À7 times the diameter of the laser beam. Light scattered by particles of precipitate from the section is collected and focused by lenses 9, preferably microscope lenses, or by prisms. A black light block 6 of the diameter of the laser beam, suspended on four threads, cuts out light scattered by diaphragms 2 and 3 and background light. Detector 7 is a  photodiode and 8 may be a recorder.
Patent GB-526431-A (GB)
Title: Improvements in or relating to the construction of metal clad vapour electric arc converters of the pumpless type
IPC: H01J9/385
Filed: 1939-03-15
Abstract: 526,431. Metal-vapour apparatus. GENERAL ELECTRIC CO., Ltd., and GALLIZIA, E. March 15, 1939, No. 8321. [Class 39 (i)] Vapour arc converters employ a metal, usually steel, container which is not provided with a pump. The container is made of parts which have been freed from gas before the seals are formed. Either the container is built up of plates which have been freed from gas e.g. by melting the ingots from which they have been rolled in a vacuum or by treating the plates in a hydrogen furnace; or the container may be heated in an atmosphere of hydrogen before the seals are made. The complete converter may be again treated to remove gas.
Patent GB-574388-A (GB)
Title: Power transmission belts and methods and apparatus for making them
IPC: F16G1/12
Filed: 1943-05-25
Abstract: 574,388. Woven fabrics; guiding warps. WINGFOOT CORPORATION. May 25,1943, No. 8334. Convention date, Jan. 15. [Classes 142 (ii) and 142 (iv)] [Also in Groups V, XXIV, and XXX] A fabric for incorporation in rubber belting has textile wefts 18 and steel cable warps 14, with or without textile (cotton) warps 16 at the edges. The cables may comprise three seven-strand plies or seven three-strand plies, and may be brass plated. The warps may be fed to the loom from a creel, those from the middle of the creel diverging towards the edges of the fabric and those from the edges of the creel converging, so that all the warps undergo the same total change of direction.
Patent GB-1004842-A (GB)
Title: Device and method for producing negative ions
Inventor: MOROWITZ HAROLD JOSEPH
IPC: H01T23/00
Filed: 1962-03-05
Abstract: 1,004,842. Ion generators; discharge lamps. PURITRON CORPORATION. March 5, 1962, No. 8440/62. Headings HID and H1X. A device for producing negative ions comprises a source 2 of photon radiation and a metallic layer 8 positioned to receive at one side thereof photon radiation from the source 2, the layer 8 being of a thickness which is great enough to stop a substantial portion of photons radiated from the source and being thin enough to permit the escape of photo-electrons into an atmospheric zone 22 along the other side thereof to form negative ions therein. The source 2 can be an U.V. light producing low pressure mercury discharge bulb. The bulb can be of quartz or "Vycor" (Registered Trade Mark) and the layer 8 can be of evaporated gold having a thickness of approximately 75 to 400 Š, preferably about 75 A. The layer 8 is grounded by a wire 10 held thereon by a clamp 11. The source 2 is enclosed in a casing 12 having a louvred inlet 14 and an outlet 16 from which air and negative ions are discharged by a fan 20. Layers of caesium, mercury, nickel, lead, silver, tungsten and alloys are also referred to. More than one source 2 can be used operated in a parallel or series circuit and can be of spherical or other shape.
Patent GB-108693-A (GB)
Title: Improved Manufacture of Titanic Acid Products.
Inventor: WADE HAROLD
IPC: C22B34/12
Filed: 1916-06-15
Abstract: 108,693. Wade, H., (Titanium Alloy Manufacturing Co.). June 15, 1916. Titanium oxide, chloride, and basic sulphate.- To a solution of titanium sulphate, for instance of specific gravity 1-4, is added a compound capable of precipitating the sulphuric anhydride, preferably an alkaline earth chloride such as calcium chloride. The sulphate is filtered off and the solution is digested at about 100‹ C. for five to eight hours, the volume being maintained constant. About 60-80 per cent. of the titanic acid present is precipitated containing however up to 10 per cent. sulphuric anhydride. The precipitate is filtered off, washed, and dried at about 100‹ C. It is a soft white powder and readily reacts with sulphuric acid and with alkalies. The titanic acid content of the mother-liquor may be recovered and used to prepare titanium sulphate for use again, or the liquor may be digested again to obtain a second-grade product. The precipitate when calcined at about 700‹ C. yields practically pure titanic oxide.
Patent GB-993070-A (GB)
Title: Coal cutter pick and cutter tip inserts therefor
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C35/18
Filed: 1963-03-04
Abstract: 993,070. Mineral-mining cutter picks. AUSTIN HOY & CO. Ltd. March 4, 1964 [March 4, 1963], No, 8517/63. Heading E1F. A cutter tip insert 5 of a coal cutter pick 10 comprises a segment of a closed figure of hard material chamfered to present a crescentshaped cutting edge 18 of V-shaped crosssection. The cutting edge may conform to either a regular or an irregular curve.