baber/WOPTO huggingface dataset:
Patent GB-1291246-A (GB)
Title: IMPROVED PRODUCT OF alpha beta-UNSATURATED ALDEHYDES
Inventor: MONTGOMERY ANTHONY JAMES
IPC: C07C45/27
Filed: 1969-07-11
Abstract: 1291246 Aldehydes BUSH BOAKE ALLEN Ltd 19 June 1970 [11 July 1969] 35084/69 Heading C2C Aldehydes containing the grouping (in which the double bond may form part of an aromatic ring) are prepared by reacting a compound containing the grouping (in which the double bond may form part of an aromatic ring system) with an alkali metal salt of a nitronic acid (which may be prepared in situ from a nitro compound and an alkali metal base) in the presence of a nitrogen base catalyst or a salt thereof. Examples prepare citral and benzaldehyde and reference is also made to the preparation of anisaldehyde, cinnamaldehyde, myrtenal and perillaldehyde.
Patent GB-1214474-A (GB)
Title: Improvements in or relating to testing machines for applying compressive and/or tensile loads
Inventor: KNIGHTS RICHARD NORTHAM
IPC: G01N3/36
Filed: 1967-08-01
Abstract: 1,214,474. Fluid servosystems. AMSLER (GREAT BRITAIN) Ltd. July 19, 1968 [Aug.1, 1967], No.35186/67. Heading G3P. [Also in Division G1] In a machine for compression and tension testing a specimen 11 positioned between gripping heads 10, 12, the head 12 is actuated by a hydraulically operated piston and cylinder 13 which applies a static as well as an alternating load to the specimen. An electro-hydraulic high speed servovalve 50 connected to an amplifier 56 and a variable frequency electronic oscillator 55 supplies alternating pressure pulses to the piston and cylinder via a changeover valve 45. The load on the specimen is sensed by a strain gauge 58 and a transducer 59 which is connected to the amplifier 56 so that the amplitude of the alternating pressure pulses is automatically adjusted to produce the required load. The pressure pulses may alternatively or additionally be controlled by attaching magnetic armatures 62, 63 to a member secured to the actuating rod 16 for the head 12. The armatures co-operate with a fixed coil 64 to vary the reactance of the coil in dependence on the position of the rod 16, the coil being connected to the amplifier 56.
Patent GB-342036-A (GB)
IPC: G02B27/14
Filed: 1929-11-18
Abstract: 342,036. Colour kinematography; optical systems. PILNY, A., 3, Dahliastrasse, Zurich, Switzerland. Nov. 18, 1929, No. 35189. Convention date, Nov. 19, 1928. [Class 97 (i).] Two or more images from the same view-point are produced by means of a single optical system which both divides the image beam and turns the images through a right-angle about the axis thereof ; a single lens before the system, a lens behind the system in each of the divisions of the beam, or lenses in all these positions may be provided. As shown, the beam from a lens 2 enters a prism system, and is divided at the surfaces 3, 10, the divided beams being reflected as shown by prisms 4, 5, 9 to produce images 8. Colour filters and additional lenses may be provided in the divisions of the beam. The prisms 9 may be omitted, and the pairs of images produced may be arranged side by side in the normal image areas of a single-width kinematograph film.
Patent GB-514033-A (GB)
Title: Improvements in or relating to carbide substances
IPC: C01B31/30
Filed: 1938-12-05
Abstract: 514,033. Tungsten and titanium carbides. McKENNA, P. M. Dec. 5, 1938, No. 35447. Convention date, Dec. 13, 1937. [Class 1 (ii)] A carbide substance is obtained by heating tungsten and titanium (or substances which on heating with carbon are capable of forming tungsten and titanium) in the presence of a menstruum metal and carbon at a temperature above 1,600‹C. for a time sufficient to produce a carbide substance containing two atoms of carbon to one atom of tungsten and one atom of titanium, and thereafter separating the carbide substance from the menstruum metal. Nickel and cobalt are suitable metals and a temperature of about 2,100‹C. is preferred. After the heating, the menstruum metal and impurities'may be removed by submitting the comminuted and cooled mass to treatment with hydrochloric acid containing a small proportion of an oxidant, such as nitric acid or potassium perchlorate, followed by a treatment with a hydroxide-containing liquor (e.g., ammonia). These treatments may be followed by further treatments with an oxidising solution such as aqua regia and with hydroxide solutions. Finally, the mass may be treated with hydrofluoric acid. The resulting carbide substance corresponds to the formula TiWC2. Specification 514,035, [Group V], is referred to.
Patent GB-990917-A (GB)
Title: Improvements in devices suitable for detecting irregularities in yarn
IPC: B65H63/06
Filed: 1961-10-02
Abstract: 990, 917. Determining physical dimensions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 2, 1961 [Oct. 5, 1960], No. 35516/61. Heading G1N. [Also in Division H3] In a capacitative slub detector in which the yarn measuring capacitor 6 is included in the feedback circuit of an oscillator comprising a plurality of transistor amplifying stages Tr1, Tr2, Tr3 and a non-linear network having two series diodes 19, 20, connected via a series resistance 22 in the reverse or backing off direction to a source of direct voltage. The voltage produced by the oscillator is fed to the junction 25 of the diodes to control the amplification of stage Tr3 in accordance with the amplitude dependent damping produced by the diodes. The D.C. potential across resistor 22 is amplified in a further stage Tr4 to operate a relay controlling cutting equipment, whereby a slub may be removed. Capacitor 3 provides negative feedback, to impart stability and independence of the transistor properties. The emitter follows arrangement of transistor Tr1 provides high input impedance; and the emitter impedance of transistor Tr3 is made adjustable by a topping on potentiometer 16. Specification 771,499 is referred to.
Patent GB-1100316-A (GB)
Title: Antistatic heat-sealable packaging films
Inventor: BALLARD ROBERT ARTHUR
IPC: C08J7/052
Filed: 1965-08-19
Abstract: A process for the manufacture of an anti-static heat-sealable packaging film comprises coating at least one surface of a base film of a hydrophobic polymeric organic material with a heatsealable nitro cellulose coating composition, drying the coating or each coating and then applying over the nitro cellulose coating or each nitro cellulose coating a top coating of an aqueous solution of an anti-static coating composition comprising a mixture of between 1 and 200 parts by weight of an alkali metal salt of lactic acid and 1 part by weight of hydroxyethyl cellulose followed by drying the top coating.  Specified base films are polyethylene, polypropylene, polybutene-1, polyvinyl chloride, polystyrene and polyesters.  The nitro cellulose is preferably employed in the form of a lacquer which may contain plasticisers, blending agents, slip agents and antiblocking agents.
Patent GB-1018873-A (GB)
Title: Improvements in or relating to methods of resistance welding for use, for example, in the manufacture of electronic assemblies
IPC: B23K11/16
Filed: 1962-09-19
Abstract: 1,018,873. Welding by pressure. GENERAL ELECTRIC CO. Ltd., P. A. BARNET and V. E. VICKERS. Sept. 18, 1963 [Sept. 19, 1962], No. 35747/62. Heading B3R. In resistance welding two metal members the surface of one of the members engaged by an electrode is provided with an intimately adherent layer of metal of higher melting point which does not melt during the welding. A layer 2, Fig. 1 (not shown), of copper foil forming part of a printed circuit is provided on its lower face bonded to the insulating material 3 with a thin electroplated layer of nickel and a copper lead 4 of a component 1 is provided with an electroplated layer of nickel on its upper surface. An upper electrode 7 engages the upper nickel layer and a lower electrode 6 engages the lower nickel layer through a hole 5 in the insulating board and current is passed so that while the copper layers fuse and weld the nickel layers do not melt. Both sides of the component lead and circuit foil may be nickel coated, the inner nickel layers only melting in the weld. Welds may be made from one side only when only the upper nickel layer of the layers is contacted by the electrodes. Instead of nickel which may be given a flash of rhodium, tantalum, molybdenum, rhodium or chromium may be used and instead of copper, gold, silver, aluminium or tin may be used.
Patent GB-1084538-A (GB)
Title: Improvements in or relating to pulse discriminator circuits
Inventor: BENES LADISLAV
IPC: H03K17/58
Filed: 1965-08-20
Abstract: 1,084,538. Tunnel diode circuits. VUMA VYSKUMNY USTAV MECHANIZACIE A. AUTOMATIZACIE. Aug. 20, 1965 [Sept. 21, 1964], No. 35795/65. Heading H3T. [Also in Division G4] Two tunnel diodes in series are shunted by a third tunnel diode which in association with a common series resistor operates as a pulse discriminator. In Fig. 1 the tunnel diode 2 and one of the tunnel diodes 6, 7 are initially in the high-voltage state while the other tunnel diode is in a low-voltage state. Pulses applied at 1 change all the diodes to the low-voltage state. If the magnitude of the resistor 3 is small, the original state is rapidly regained when the input pulse ceases, which of the two tunnel diodes 6, 7 to assume the high-voltage state depending on a polarizing current applied at 10 or by noise in the circuit. With a higher value of resistance 3 the circuit will be bistable. The circuit can be used as an amplitude discriminator for input pulses, the level being set, e.g. by a bias voltage applied simultaneously with the pulses. If two pulse trains of different repetition rate are applied at 1 and 10, the output at 12 will be a pulse train at the difference frequency. A number of pairs of tunnel diodes as 6, 7 may be connected in parallel with the same tunnel diode 3 (Fig. 4, not shown). Using two such pairs, the pulse trains at the difference frequency will be out of phase by a quarter of the period. The sign of the phase difference will determine which of the two input frequencies is the higher. The input pulses need not be rectangular, e.g. they may be made sloping by using an inductance instead of the resistance 9. The bi-phase outputs can be applied to two further circuits of the type of Fig. 1 to obtain two-state voltage outputs corresponding to the two phases, and hence representing which input frequency is the higher. Resistor 11 may be replaced by a diode (Fig. 5, not shown) with shunt capacitor feeding the base of a transistor. The circuit may also be used as an indicator for an impedance bridge whose output is applied at 10, the circuit indicating the sign of the phase change of the voltage at the bridge output. The tunnel diode 2 may be part of the energizing multivibrator of the bridge, or a separate source may be used, e.g. a blocking oscillator, magnetic oscillator or dielectric oscillator.
Patent GB-448636-A (GB)
Title: Improvements in and relating to shaker sieves
IPC: B07B1/46
Filed: 1934-12-13
Abstract: 448,636. Wire fabrics. SCHIEFERSTEIN, G. H., 105, Reichstrasse, Charlottenburg, Berlin. Dec. 13, 1934, No. 35840. [Class 142 (iv)] [See also Group II] In shaker screens, the thickness of the wires forming the mesh is graded at or near the parts which are fixed to the frame so as to diminish from the points of attachment towards the middle of the screen. In the embodiment shown in Fig. 1, the wires 10 along the attached edges of the screen are of the greatest diameter and the succeeding wires 11 .. 15 are of diminishing diameter, the intervening part of the screen being of uniform thickness. In addition, the thickness of the transverse wires may be varied. Intermediate reinforced areas of the screen may also be provided, as shown in Fig. 3, in conjunction with transverse supporting bars 20, 21. In the case of stationary screens which are vibrated by the application of an exciting force at some intermediate point of the screen, the mesh work is thickened at the point of application of the force. Specification 384,170 is referred to.
Patent GB-398072-A (GB)
Title: Improved apparatus for casting radiators
IPC: B22C9/26
Filed: 1932-12-17
Abstract: 398,072. Moulding processes. GURNEY, E. H., 347, Walmer Road, Toronto, Canada. Dec. 17, 1932, No. 35876. Convention date, March 12. [Class 83 (i).] Moulds; cores.-A mould for casting a radiator comprises two mould halves C, D, built up of dry sand slabs 33, 34, and 35, and a dry sand core B, Fig. 3. Each slab 33 has a print for a core end and a recess to produce the end wall 1 or 2, Fig. 5, of the radiator. Each slab 34 has a notch 46, Fig. 7, to accommodate the enlarged end 24 of the core to produce the header 5, a recess 42 to produce a fin 8 and slots 43 to produce the side wall 3 or 4. Each slab 35, Fig. 8, has a notch 58, to accommodate the central part 26 of the core and produce the fluid way 7, a recess 59 to produce a fin 8, slots 53, 55 to produce the side and intermediate walls 3 or 4 and 10 or 11, and a sloping part 61 to form a gate. Clamping moulds.-The slabs, comprising the half C, are held in a clamp 70 and D in a clamp 71 and these are superposed, with the core B, supported by chaplets, between them, and the whole secured by clamps 73. The core is provided with vents 32 and, if a long core with an intermediate header is required, may be made in two parts.
Patent GB-804707-A (GB)
Title: Improvements in or relating to squeegee blades
IPC: E01H1/10
Filed: 1956-11-23
Abstract: 804,707. Squeegees. MATERIEL DE VOIRIE. Nov. 23, 1956 [Dec. 15, 1955], No. 35972/56. Class 19. In a squeegee blade 3 formed of rubber or like pliable material are embedded resilient metal wires 4 of such dimensions as to give a desired degree of rigidity to the blade. The wires are preferably U-shaped, the limbs of the wires being disposed on either side of the longitudinal plane of symmetry of the strip. The blade has a heel portion 5 to facilitate mounting on or in a carrier and a reinforcing wire passes through the heel.
Patent GB-786430-A (GB)
Title: Improvements in or relating to the treatment of hydrocarbon-containing mixtures withaqueous media
IPC: C10G31/08
Filed: 1954-12-13
Abstract: Hydrocarbon-containing mixtures are countercurrently contacted with an aqueous medium in at least 2 separate contacting stages, wherein the final contacting stage is operated under conditions such that the treating medium constitutes a continuous liquid phase and the feedstock a discontinuous liquid phase dispersed in the treating medium, and wherein at least one prior contacting stage is operated under conditions such that the feedstock constitutes a continuous liquid phase and the treating medium a discontinuous liquid phase. The volume ratio of feedstock/aqueous medium in the final stage may be 1:3 to 1:10, and in the previous stages 100:1 to 4:1.  After each contacting stage the phases are separated by decantation.  The aqueous medium may be water or an aqueous alkali solution, e.g. an alkali or alkaline earth base such as caustic soda, caustic potash, calcium hydroxide and sodium and potassium carbonates.  The process may also be used in the treatment of the mixtures with caustic alkali and a solution such as methyl alcohol, potassium isobutyrate and alkali metal phenolates and thiophenolates; alternatively the treating solution may contain catalysts for the regeneration of spent solutions such as tannins, or oxidizing agents such as alkali metal hypochlorites, ferricyanides and copper cresylate.  Treatment with caustic alkali may be conducted in the absence of air.  Mixing devices such as paddle or propeller stirred vessels may be used in the contacting stages or the mixing may be carried out in closed circuit using circulating pumps and orifice or value mixers. Mineral oil distillates such as petroleum fractions, coal tar and shale oil distillates, e.g. fractions from C3 hydrocarbons to gas oil, such as gasoline, naphtha, kerosine, white spirit, diesel fuel and gas oil, may be treated; the diesel fuel may be straight run or catalytically or thermally cracked or mixtures thereof, boiling in the range 200-350 DEG  C.
Patent GB-1059915-A (GB)
Title: Improvements relating to bright nickel electroplating
Inventor: LAW MALCOLM JOHN
IPC: C25D3/16
Filed: 1963-09-12
Abstract: A process for producing bright nickel deposits which comprises electrodepositing nickel from an aqueous acidic solution of at least one nickel salt in which there is dissolved from 0.01 to 1.5 gr/1 of a preformed compound consisting of the reaction product of an acetylenic alcohol and an alkali metal perborate; together with a water soluble sulphooxygen compound at a concentration of from 0.5-90 gr/1. The borate derivative compound may be the reaction product of sodium perborate and an acetylenic alcohol such as 2-butyne-1:4-diol; 3-pentyne-1-ol; 2-methyl-3-butyne 2-ol; 1-pentyne-3-ol; or 2-pentyne-1:4-diol.  The sulphooxygen compound may be selected from a group consisting of mononuclear and bi-nuclear sulphonic acids, hetero-cyclic sulphonic acids, mononuclear aromatic sulphinic acids and alkali metal, ammonium, magnesium and nickel salts of said acids, and mononuclear aromatic sulphonamides and sulphonimides, e.g. benzene monosulphonic acid C6H5SO3H; sodium benzene sulphinate C6H5SO2Na; benzene sulphonamide C6H5SO2NH2; napthalene trisulphonic acid trisodium salt C10H5(SO3Na)3; thiophene sulphonic acid C4H3S.SO3H.
Patent GB-1475014-A (GB)
Title: Hydraulic servo system
IPC: F15B11/17
Filed: 1974-08-16
Abstract: 1475014 Hydraulic control circuits EATON GmbH 16 Aug 1974 [18 Aug 1973] 36276/74 Heading F1P [Also in Division F2]  In the circuit shown, Fig. 2, a valve 12, which diverts the output of a pump 3 from a reservoir 6 to an actuator 20 when the supply to the actuator through the valve from a pump 2 rises to a predetermined level, is characterized by having a passage 39 of smaller size than a throttle orifice 37 and a loose ball 41. When a valve 17 is moved to the position shown in Fig. 2, liquid passes from the pump 2 through lines 9, 19 and up through the valve 12 to the actuator 20. At small rates of flow the loose ball 41 is lifted from its support 45 and closes the throttle orifice 37 so that all the flow passes through the passage 39. Liquid from the pump 3 goes through the valve 12 from a port 11 to a port 13 and returns to the reservoir 6. If the flow from the pump 2 is increased a slide 29 is moved up against a spring 28, Fig. 3, (not shown), thus closing ports 11, 13 so that liquid from the pump 3 passes through a check-valve 8 and joins the flow from the pump 2. This causes a slide 36 to rise against a spring 35, depending on the flow, so that a valve 32 lifts off a seat and the flow passes through a chamber 31 and ports 38. Return flow is rapid because the free ball 41 drops on to the support 45 thus opening the orifice 37.
Patent GB-435967-A (GB)
Title: Improved puncture-proofing composition
IPC: F16G3/06
Filed: 1934-12-18
Abstract: A puncture-sealing composition comprises a mixture of starch and borax, or starch, sugar and water, together with mica particles and rubber and cork in pulverulent form.  The heat generated in the tyre inner tube liberates the water of crystallization from the borax forming a viscous coating with the starch.
Patent GB-1096036-A (GB)
Title: Improvements for thermal insulation screens
IPC: E06B9/40
Filed: 1965-08-25
Abstract: 1,096,036. Roller blinds. R. A. GILL. Aug. 24, 1966 [Aug. 25, 1965], No. 36460/65. Heading A4B. A heat insulation screen for a window, glass door, &c. comprises a sheet C of flexible material wound by a spring return or crank handle mechanism on a roller A which is supported by brackets B, each vertical edge of the sheet being embraced by a sealing guide. The guides consists of a pair of opposed sheet-contacting members of pliable, e.g. foamed, material, each supported by a rigid part-casing and urged to grip the edge of the sheet by the engagement of press-stud parts or the attraction of magnets for other magnets or a ferrous metal strip arranged along the length of the guide. A rigid strip D is enclosed near the free end of the screen, or pulling cord E provided, and a strip of pliable material is adhered. In a modification the roller is vertical and a single sealing guide extends horizontally to engage the lower edge of the screen, and vertical bars may be incorporated in the sheet to deform round a bay window.
Patent GB-339774-A (GB)
Title: Improvements in connection with the coulters and seed covering devices of agricultural drills
IPC: A01C5/06
Filed: 1929-11-28
Abstract: 339,774. International Harvester Co. Jan. 28, 1929, [Convention date]. Manure &c. distributers.-The furrow-forming shoes or coulters and the seed-covering tools of a drill are so arranged that when the shoes are adjusted to vary the depth of the furrows the covering tools attached to them maintain a constant position relative to the ground surface for all positions assumed by the shoes. Each shoe or coulter comprises a tubular part 5 of square or other section and a hoe point 6 shaped to form a broad furrow. A straight or curved lip 7 projects into the tube 5 to form a baffle to scatter the seeds. It may be provided with humps. Two draw bars 13, 14 are pivotally connected to each coulter, the bar 14 being pivotally connected to a shaft 15 and the bar 13 to a crank arm 17 on the shaft 15. The depth of furrow is regulated by varying the inclination of the coulters by rockng the shaft 15 by means of a worm sector 16, a worm 18, a shaft 19, and a crank handle 20. Each covering blade 10 is carried in an angular position by an arm 9 pivoted on a projection 8 on the tube 5. A rod 21 is pivotally connected to the arm 9 and passes through a swivelling collar 22 carried by a link connected to the bars 13, 14, movement through the collar 22 being controlled! by a spring 25 adjustable by means of a nut 24. Ths arrangement causes a compensating movement of the blade 10 when the coulter is adjusted, so that the actual movement of the Made 10 is in a substantially straight line along the ground surface. The blade 10 may be adjusted relatively to the coulter and the soil by moving the collar 22 along the link 23. A breakable wooden pin may be used to connect the bar 13 to the coulter.
Patent GB-1180968-A (GB)
Title: Novel Skin Make-Up.
Inventor: ZVIAK CARLES
IPC: A61K8/26
Filed: 1967-08-09
Abstract: 1,180,968. Make-up composition. L'OREAL. 9 Aug., 1967 [9 Aug., 1966], No. 36642/67. Headings C3F and C3P. A make-up composition comprises a waterinsoluble film-former which adheres to the skin and a volatile solvent therefor. both of which are incapable of harming skin and the mixture of which has a viscosity of at least 600 c.p.s., and a decorative additive which is a soluble dye, a polymer containing chromophoric groups, a nacreous pigment or a finely-divided metal, and which is suitable for application to the skin. A plasticizer may also be included. Exemplified film-formers are polymethylacrylate, nitrocellulose, cellulose acetobutyrate, a toluene-sulphonamide-formol resin and shellac. Exemplified decorative additives are powdered Al, two proprietary yellow metal pigments and pearl essence in 12% guanine solution. Conventional solvents/plasticizers are used.