baber/WOPTO huggingface dataset:
Patent GB-720885-A (GB)
Title: Improvements in or relating to devices for shaping grinding wheels
IPC: B24B53/08
Filed: 1953-04-15
Abstract: 720,885. Trueing grinding-wheels. ENGINEERING DIAMONDS Ltd., and ALLEN, R. April 15, 1953, No. 10370/53. Class 60. A trueing device comprises two relatively movable pantographs 2, 3, 4, 5 and 7, 8, 9, 10, each of which is connected to a tool C, such as a diamond, and to a common operating member H whereby both rectilinear and angular movement of the member H is reproduced by the tool. The two pantographs are connected by a common pivot pin P to a base M having a machined surface to enable the device to be mounted on a grinding machine and a web F to secure a template E. The member H is provided with a follower G, a handle L and an operating knob K and is moved so that its axis is always normal to the template profile.
Patent GB-568816-A (GB)
Title: Improvements relating to apparatus for impregnating articles under vacuum
IPC: H01F41/00
Filed: 1944-05-31
Abstract: 568,816. Apparatus for vacuum impregnation. GENERAL ENGINEERING CO. (RADCLIFFE), Ltd., and TAYLOR, S. May 31, 1944, No. 10432. [Class 140] Apparatus for impregnating articles under vacuum comprises an evacuable vessel containing a plurality of alternative conditioning means, and means including one or more pumps and/or one or more valves connected by conduits to the conditioning means, for selectively passing impregnant through one or more of the conditioning means. As shown, an evacuable vessel 50 with heating jacket 51 contains a filter 62, a heat-interchanger 54, a dehydrating sprayer 74. pumps 52 and 53 and a system of conduits and valves, whereby the impregnant may be passed through one or more of the filter, heat - exchanger and dehydrating sprayer. A number of alternative routes are described in detail in the Specification. The valves may be operable from outside the vessel and further conduits may be provided whereby the impregnant may be received from a raw impregnant storage tank, and, after treatment, transferred to another vessel in which the impregnation is effected. The impregnant may be put under pressure in the impregnation vessel and circulated while still under pressure in the impregnation vessel, through one or more of the conditioning means in vessel 50. The application of pressure is facilitated, and the pressure controlled, by a hydraulic accumulator 77 mounted on top of the vessel 50. The heat-interchanger 54 has flanged connections 57, 58 for circulation of cold water or steam for cooling or heating the impregnant, and is provided with a jacket 55 evacuated through stand-pipe 56 to insulate the heat-interchanger from the contents of the vessel 50. The dehydrating sprayer comprises a rotary hollow member 74 having peripheral holes 120 through which the impregnant passes from the interior of a fixed housing 76 on to a screen 75. The hydraulic accumulator comprises a piston-head 78 displaceable up bore 79 by liquid under pressure against the action of weights 80. The accumulator has a vacuum-tight cover 82 provided with a flange 83 constituting the vacuum connection for the whole of the vessel 50, the interior of the cover 82 communicating with the top of vessel 50 through ports 84. Shield 75 prevents the impregnant mist produced by the sprayer from being pumped off through the vacuum connection. The apparatus may be used for impregnating electrical transformers, condensers, or parts thereof, with transformer oil, paraffiin wax or a mixture of rosin and oil. Specification 568,808 is referred to.
Patent GB-1012077-A (GB)
Title: Dimerization of propylene
IPC: B01J23/04
Filed: 1964-03-12
Abstract: Propylene is dimerized in the presence of a catalyst of potassium and/or cesium and/or rubidium supported on pellets of magnesium silicate with a density of 0.4 to 1 gm./c.c.  The dimerization may be conducted at 100-250 DEG  C. at 15 to 4000 p.s.i.g. and a LHSV of 0.5 to 20.  The principal products are 4-methylpentene-1 and -2ALSO:Potassium cesium or rubidium or mixtures of them are supported for catalytic purposes on pellets of magnesium silicate having a pellet density of 0,4-1,0 gm./cubic cm.
Patent GB-540068-A (GB)
Title: Improved means for exploring local intensities in high-frequency electromagnetic fields
IPC: G01R29/08
Filed: 1940-06-17
Abstract: 540,068. Photo-electric apparatus for measuring electromagnetic fields. STRAUSS, S. June 17, 1940, No. 10473. [Class 40 (iii)] [Also in Group XXXVI] An apparatus for measuring the local intensity of a high-frequency electromagnetic field, especially for electrotherapeutical purposes, comprises a luminous discharge device of small dimensions relatively to the field and adapted to be introduced in said field and be excited to luminescence in proportion to the local intensity of the field in combination with a photo-metric device for determining the intensity of the luminescence. As shown, a discharge device 1 consisting of an electrodeless bulb filled with gas at low pressure is arranged at one end of a light-tight tube 2 of electrically insulating material enclosing at its other end a photo-electric cell 3 to which light is directed by a glass tube 5 extending between the bulb and the cell. The cell 3 is connected to a measuring instrument 4 in shunt with a variable resistance 6 which can be set in accordance with the frequency of the field so that the reading of the measuring instrument may be correct for that field frequency.
Patent GB-148632-A (GB)
Title: Improvements in transmitters for telephony
IPC: H03C1/62
Filed: 1919-04-28
Abstract: 148,632. Round, H. J. April 28, 1919. Wireless telephony; thermionic relays. - In systems in which oscillations produced by a thermionic generator are modulated in accordance with speech currents, the direct current in the plate circuit of the generator is supplied by the rectification of part of the alternating speech currents. The production of oscillations, therefore, starts and stops with the speaking voice. In the arrangement shown in Fig. 1, the microphone circuit includes the primaries of two transformers T1, T2. The currents in the secondary of the transformer T1 act through a rectifier R to charge a large capacity C in the plate circuit of the generator V, while the currents in the secondary of the transformer T2 vary the amplitude of the oscillations generated. In the modification shown in Fig. 2, a second rectifier R1 is bridged across the condenser C to accelerate its discharge when speech ceases, and the modulated oscillations are magnified by an amplifier V2.
Patent GB-1385685-A (GB)
Title: Cephalosporin derivatives
IPC: C07D501/20
Filed: 1971-04-21
Abstract: 1385685 Preparation of cephalosporins GLAXO LABORATORIES Ltd 28 March 1972 [21 April 1971] 10566/71 Heading C2C [Also in Division C3] A process for the preparation of cephalosporin compounds of Formula I or salts thereof, wherein X is an acetate group, the residue of a nucleophile, a hydroxy group or a hydrogen atom and R is the group -CO.COOH or -COOH comprises subjecting a compound of Formula II or a salt thereof, wherein X is as defined above, to the action of activated cells of Trigonopsis variabilis under aerobic conditions, catalase activity being present in the cells when the group R in the desired product is -CO.COOH otherwise catalase activity being inhibited or inactivated especially by alk metal azide or by heating. Activation of the cells is by treatment with organic solvents, with an aq. soln. of a surfactant by freezing followed by thawing at an acid pH by treatment with an alkali or by osmotic shock.
Patent GB-1379004-A (GB)
Title: High temperature-resistand wearproof sintered alloys
IPC: F01L3/02
Filed: 1973-03-05
Abstract: 1379004 Sintered alloys TOYOTA JIDOSHA KOGYO K K 5 March 1973 [6 March 1972] 10601/73 Headings C7A and C7D A sintered alloy, whose high-temperature and wear resistance properties make it suited for use in valve seats and bearings, comprises, by weight:- 3 to 20% molybdenum  0À5 to 1À5% carbon 3 to 25% cobalt 1 to 15% lead optionally 1 to 15% nickel and 3 to 25% chromium the balance being iron, wherein the relatively soft iron-base matrix contains a hard dispersed phase composed of iron and molybdenum together with Pb particles. Powder mixtures of the constituents are sintered at 1130 to 1180‹C in an atmosphere of decomposed ammonia or under vacuum; if desired, the lead may be incorporated by infiltrating the sintered body formed from the other constituents.
Patent GB-694497-A (GB)
Title: Preparation of 2-sulfanilamidoquinoxaline
IPC: C07D241/44
Filed: 1950-05-01
Abstract: 2-Sulphanilamidoquinoxaline is prepared by heating a mixture of 2-haloquinoxaline, sulphanilamide and an acid-binding agent, particularly an alkali or alkaline earth carbonate, bicarbonate or hydroxide.  The temperature may be between 120 DEG  and 180 DEG  C. In an example, 2-chloroquinoxaline, sulphanilamide and potassium carbonate are heated together to 160-165 DEG  C. for five hours, cooled, diluted with water, acidified to pH9 to separate unchanged sulphanilamide, and then acidified and cooled to 0-5 DEG  C. to precipitate the 2-sulphanilamidoquinoxaline.
Patent GB-542033-A (GB)
Title: Improvements in or relating to protective or warning tiles or slabs applicable for covering underground cables and the like
IPC: H02G9/02
Filed: 1940-06-21
Abstract: 542,033. Slabs, special shapes. BALDWIN & CO., Ltd., H. J., and BYERS, E. V. June 21, 1940, No. 10659. [Class 87 (i)] Slabs for protecting buried electric cables are provided with hook-shaped projections 11, Figs. 2 and 3, at one end and mating recesses 12 at the other. The slabs are provided with holes 14 and grooves 15 for the insertion of locking members 13. The projection may be cut away as shown at 11c in Fig. 5, the recess being shaped to match.
Patent GB-1323613-A (GB)
Title: Device for detecting yarn breakage in a break spinning frame
IPC: B65H63/028
Filed: 1971-04-22
Abstract: 1323613 Stop-motion for break spinning machine TOYODA JIDOSHOKKI SEISAKUSHO KK and DAIWA BOSEKI KK 22 April 1971 [22 April 1970] 10666/71 Heading D1D A yarn breakage detecting element 18', normally disposed in contact with a twisted yarn Y issuing from a break spinning machine, is pivotally attached to a support member 16 through a resilient member such as a leaf spring 17 and is urged by the said resilient member, when yarn breakage occurs, into a position at which it has means associated therewith to at least indicate the occurrence of the yarn breakage The element 18' carries a permanent magnet 22 that actuates a reed switch 23 when urged into the afoersaid position. The magnet 22 and switch 23 may be replaced by an interrupting plate and photoelectric switch. Spinning arrangement. A sliver of fibres F is fed between the nip of a roller 2 and a presser 3 to a combing roller 4 from which the fibres are sucked through a converging air passage 7 into a rotor 8 where they are spun into a yarn Y that exits through an opening 10a to be drawn up through a tube 13 by a pair of rollers 14.
Patent GB-106982-A (GB)
IPC: B60B17/00
Abstract: 106,982. Davis, J. C. June 1, 1916. Disk wheels.-Cast steel wheels, particularly for railway vehicles, of the kind in which the rim is made hard by the use of manganese steel, are formed with a rim containing 0.28-0.45 per cent. of carbon and 1.25-2.50 per cent. of manganese, and a wheel body and centre containing 0.20-0.35 per cent. of carbon and 0.60 to 0.80 per cent. manganese. In the finished wheel, the rim may be further hardened by ordinary heating and cooling methods. The powdered manganese is injected into the stream of molten metal by compressed air in the manner and by the apparatus described in Specification 106,678.
Patent GB-1247431-A (GB)
Title: A gas contacting element having a leading edge insert
IPC: F01D5/14
Filed: 1969-02-28
Abstract: 1,247,431. Turbine vanes. UNITED AIRCRAFT CORP. Feb.28, 1969 [March 20, 1968], No.10717/68. Heading F1T. [Also in Division B3] A nozzle guide vane for a gas turbine engine, or other gas contacting element, comprises a metallic main body 22 and a leading edge insert 18 of non-metallic refractory material 24 through which extend longitudinally metallic single crystal wires 38. The latter have a higher coefficient of thermal contraction than the refractory material 24 so that the insert is pre-stressed in compression at ambient temperatures. The vane may also have a trailing edge insert 20 of similar construction to insert 18. The refractory material 24 of the inserts 18, 20 is an alumina based ceramic whereas the wires 38 of a super-alloy containing nickel, cobalt and other constituents in specified proportions. The vane includes lower and upper platforms (30, 32), Fig.1 (not shown) cast integrally with the wires 38 and main body 22. Cooling air passages 26a are provided in the inserts 18, 20.
Patent GB-1132205-A (GB)
Title: A new or improved clip for securing railway rails
Inventor: BENNETT JAMES
IPC: E01B9/30
Filed: 1965-03-13
Abstract: 1,132,205. Securing rails to sleepers. EXECUTORS OF JAMES MILLS Ltd. 23 Feb., 1966 [13 March, 1965], No. 10739/65. Heading E1G. A rail clip of resilient circular bar is of the shape shown, in which a substantially straight portion 19 act as an anchoring leg and portions 29, 21 bear on the rail flange 30 and a rail support abutment 17, the portions being joined by return bends and an intermediate portion 23 such that the bend part 20 is substantially stressed only in torsion and the clip driving face 28 lies substantially on the vertical plane through the portion 19. The portion 19 may be offset at its centre to allow easy hand assembly in the anchoring member 15 before driving.
Patent GB-578933-A (GB)
Title: Disintegrating and removing metals
IPC: B23H9/00
Filed: 1944-06-06
Abstract: 578,933. Disintegrating metals. ELOX CORPORATION. June 6, 1944, No. 10860. Convention date, July 19, 1943. [Class 82 (ii)] [Also in Group XXII] In a method of disintegrating metal the surface of the metal is heated and cooled in rapid succession to chip off particles which are removed. As shown applied to the removal of a broken stud 71 from a hard piece of metal 69, the latter is electrically connected to one terminal of a source of energy the other terminal of which is connected to one end of a coil 11 which surrounds a solenoid armature 13 to which is attached an electrode 47 of copper through which coolant flows. The electrode, urged towards the workpiece 69 by a spring 31, is electrically connected to the other end of the coil 11. When current passes through the circuit the electrode forms a hot spot on the workpiece and the coil, being energised, pulls the electrode out of contact with the workpiece. Coolant flowing through the electrode, immediately chills the hot spot causing particles of the metal to chip off, these particles being removed in the stream of coolant. This operation continues until the broken stud is removed without damage to the threads in the workpiece. The apparatus may be used for making holes in very hard material, e.g. a hardened die. A mechanical device may be employed to vibrate the electrode.
Patent GB-102238-A (GB)
Title: Improvements in Railway Sleepers and Securing Rails thereto.
Inventor: JARVI KALLE
IPC: E01B3/18
Filed: 1916-08-02
Abstract: 102,238. Jarvi, K., and Makinen, K. Aug. 2, 1916. Sleepers, metal, and securing rails thereto.-A hollow metal sleeper formed in two parts fitting together in box form has the parts held together by means of a latch 16 attached to the lower portion and projecting through an opening in the upper portion. The rails 12 are held in position by outer clamping-jaws struck from or attached to the sleeper, and inner jaws 13 formed as levers which project through openings in the upper parts of sleeper, the tails of the levers bearing against the lower part of the sleeper.
Patent GB-768607-A (GB)
Title: Improvements in or relating to steam or gas turbines
Inventor: BOESTAD GUSTAV KARL WILLIAM
IPC: F01D25/26
Filed: 1955-04-15
Abstract: 768,607. Turbines. AKTIEBOLAGET INTERNATIONAL STAL CO. April 15, 1955, No. 10918/55. Class 110 (3). A steam or gas turbine having inner and outer casings 5, 6 enclosing working fluids of different temperatures, has a ring 8 bolted to the outer casing, a ring 10 carried by the ring 8 by means of radial pins 11, the casing 6 carried by the ring 10 by means of radial pins 12, the pins 11, 12 lying in pairs in the same bore with a heatinsulating plate 14 between them. Clearances are arranged between the ring 10 and the bolted ring 8 and casing 6 to allow of free radial expansion and to prevent the conduction of heat between the parts 6, 8. Heat radiation baffle-plates 13 may also be provided. The ring 10 is formed with relatively small areas in contact with the steam chest 6 and casing 5 to reduce the amount of heat conducted. The pins 11, 12 may also be bored axially to reduce their heat conducting capacity. Sealing rings 15 may also be provided.
Patent GB-650389-A (GB)
Title: Improvements in or relating to the production of salts of chloro-aryl-oxyacetic acids
IPC: C07C59/70
Filed: 1948-04-20
Abstract: Alkali metal salts of chloroaryloxyacetic acids are manufactured by reacting a chlorinated phenol with an excess of monochloracetic acid in a medium of pH about 9-10, the alkalinity of which is due to an alkali metal compound, the said excess of monochloracetic acid being present initially in the reaction medium, and separating from the crude reaction product the small quantity of unconverted chlorinated phenol contained therein, e.g. by washing the reaction product with a 1-2 per cent caustic soda solution, or by rendering the reaction mass alkaline and then washing it with water, or by acidifying the reaction mass and then steam distilling off the chlorinated phenol. Examples describe the production of sodium-2 : 4 - dichlorophenoxyacetate. Specifications 573,476, 573,479, 573,510 and 592,827 are referred to.
Patent GB-692037-A (GB)
Title: Improvements in chucks for machine tools
IPC: B23B31/173
Filed: 1950-05-03
Abstract: 692,037. Chucks. CAWI, J. May 3, 1950 [May 4, 1949], No. 10962/50. Class 83 (iii). In a bevel-closing chuck in which the jaws 10 are moved radially by displacing a clamping sleeve 13, 14 along the chuck body 9, the latter is provided with a tube-like extension 9a adapted to guide the front end of the clamping sleeve axially and having slots through which the jaws 10 are movable, and the part 13 of the clamping sleeve has internal truncated teeth throughout its length, some of the teeth engaging a screw-threaded portion 15 of the chuck body and the remaining teeth engaging a cylindrical portion of the chuck body. Springs 11 mounted on the chuck body bear on studs 12 on the jaws to urge them to the open position.
Patent GB-1164907-A (GB)
Title: Process for the production of Porous Films
Inventor: SPIELAU PAUL
IPC: C08J9/08
Filed: 1967-03-08
Abstract: 1,164,907. Fabrics coated with porous films. DYNAMIT NOBEL A.G. 8 March, 1967 [8 March, 1966], No. 11012/67. Heading B2E. [Also in Division C3] A process for preparing a porous film of a vinyl chloride polymer on a fabric support comprises applying to the support a paste of a vinyl chloride polymer having a mean grain size of 30-100Á, a plasticiser therefor and a blowing agent, heating to cause gellation and to liberate the gas. Suitable supports are textiles, fleece, paper or wire fabrics to which the paste can be applied in a known manner, e.g. by brushing, doctoring or reverse roll coating, and can be used to provide a backing for carpets, a "breathing wall" covering, or may be used as artificial leather. The polymer may be PVC or a vinyl chloride copolymer with, for example, vinyl acetate, vinyl propionate, vinylidene chloride, acrylic acid derivatives and/or methacrylic acid derivatives. Suitable blowing agents are water, aqueous solutions of ammonium carbonate and ammonium bicarbonate, or water in combination with azodicarbonamide or azoisobutryonitrile. Suitable plasticisers include esters of phthalic acid, sebacic acid, fumaric acid and/or phosphonic acid.
Patent GB-192970-A (GB)
Title: A process for electrolytically manufacturing compact metallic beryllium
IPC: C25C3/34
Filed: 1922-04-19
Abstract: 192,970. Goldschmidt, H., and Stock, A. April 19, 1922. Beryllium, obtaining.-Beryllium is obtained in a pure compact form by electrolysis of a fused double fluoride of beryllium and an alkali metal in the presence of an alkaline earth fluoride at a temperature approaching the melting point of beryllium e.g. 1280‹ C and upwards. In an example: double fluoride of beryllium and sodium is fused in a graphite crucible and gradually increasing quantities of double fluoride of barium and beryllium are added, electrolysis being commenced when the bath reaches 1200‹-1300‹ C. Either of the double salts may be added to replace the beryllium separated. A hollow water-cooled iron rod may be used as cathode.
Patent GB-644516-A (GB)
Title: Improvements relating to flexible tubular structures made of thermoplastic material
IPC: B29C53/48
Filed: 1948-04-22
Abstract: 644,516. Making plastic tubes. DUNLOP RUBBER CO., Ltd., and HINTON, J. JONESApril 22, 1948, No. 11057. [Class 99(ii)] [Also in Group XXXIV] Seamed tubular members for use in the production of airtubes for tyres are formed by progressively folding, and joining by heat-sealing, the edges of a travelling strip of thermoplastic material which is periodically interrupted to leave unjoined portions at intervals where the material is severed to produce air-tube units. Figs. I and II show an apparatus for producing the tube units. The end of a continuous strip of thermoplastic material, such as plasticized polyvinyl chloride, is fed through a forming-device 3 comprising a sleeve 16 and core 4 in which the strip is folded into a double-loop section shown in Fig. V At the issuing end of the former, the neck-portion of the tube passes between a pair of roller electrodes 5 positioned in registering slots 14 and 17, 18 in the core and sheath. Timed breaks in the electric circuit provide for unsealed portions at pre-determined intervals along the tube. The double-tube is then slit along the neck-portion by a circular knife 6 to form two separate tubes which pass between feed-rolls 7 on to a table 8 for delivery on to a conveyer-band 10. The rolls 7 are power-driven and geared by belts 39, 41 to the shafts 20, 19 of the electrodes 5. Pivoted at 45 on the table 8 is a weighted arm 47 fitted with a knife 9, co-operating with an arcuate slot 42, 43 in the table, by which the unjoined portions of the tubes are transversely severed. The knife 9 is normally held in the raised position shown in Fig. 1, and is actuated by the plunder 48 of a solenoid 49. The latter is energized in timed relation with the cutout of the electrodes 5.
Patent GB-433327-A (GB)
Title: Improvements in and relating to dials for radio apparatus
IPC: H03J1/04
Filed: 1934-04-12
Abstract: 433,327. Adjusting wireless apparatus. IDEAL WERKE AKT.-GES. FUR DRAHTLOSE TELEPHONIE, Hohenschonhausen, Berlin. April 12, 1934, No. 11089. Convention date, April 12, 1933. Drawings to Specification. [Class 37] A dial for radio receivers has all of the station indications simultaneously visible and is made opaque or slightly transparent, the indications themselves being transparent and cooperating with an inclined line indicator, the indications of different wave-ranges being intermingled and separately coloured in different transparent colourings.