baber/WOPTO huggingface dataset:
Patent GB-896837-A (GB)
Title: Induction motor control system
IPC: G05D3/14
Filed: 1960-05-27
Abstract: 896,837. Control of motors. GENERAL ELECTRIC CO. May 27, 1960 [July 8, 1959], No. 18818/60. Class 38 (3). A two-phase induction motor 10, e.g. a position-control servomotor, has an excitation winding 11 and a control winding 12 supplied with an A.C. signal via an amplifier 16; to present a resistive load to this amplifier the control winding is tuned by a capacitor 17, in series with which is an arrangement 18 to disconnect the capacitor when the signal voltage is zero. This is done to increase the impedance of the control winding circuit (by de-tuning it) so that error current, caused by E.M.F. induced in the control winding by the excitation winding, is reduced. As shown, the arrangement 18 comprises two parallel connected silicon diodes 19, 20, which present a high impedance to low (e.g. error) voltages but low impedance to high (signal) voltages. In an alternative arrangement two Zener diodes in series and back-toback are used.
Patent GB-731029-A (GB)
Title: Means for fixing hollow metal frames to buildings
Inventor: AMERY ARTHUR NORTON
IPC: E04B1/61
Filed: 1953-07-07
Abstract: 731,029. Door and window frames, securing. CRITTALL MANUFACTURING CO., Ltd. April 14, 1954 [July 7, 1953], No. 18834/53. Class 20 (3). A hollow metal window, or door, section, e.g. a window frame 9, is secured to the masonry 10 of a building by means of a number of preferably heavy gauge wire lugs 1 of U-formation, the ends of each lug being bent outwardly to conform to, and engage, at intervals in flanged profiles 7, 8 of the frame and the bases 6 of the lugs, projecting from the frame, being cemented into the masonry, cement also being introduced round the ends of the lugs in the frame.
Patent GB-678333-A (GB)
Title: Improvements in or relating to pasteurizing apparatus of the plate type
IPC: A23L3/20
Filed: 1950-07-28
Abstract: 678,333. Plate heat-exchangers. WEDHOLMS AKTIEBOLAG. July 28, 1950 [Aug. 12, 1949], No. 18871/50. Class 64(iii) In a heat exchanger for pasteurizing cream &c. and comprising spaced parallel plates with sealing strips 22 around their edges and alternate spaces connected to the inlets 14, 18 and outlets 16, 20 for the heatexchanging fluids, the interspaces for one fluid, e.g. cream, are each divided into a plurality of passages 36, 44, 46 which are narrower than the plates and are connected in series to one another, and an inlet opening 14 at one corner of one of the plates bounding the interspace is connected by a transverse passage 34 to the passage 36 furthest from it. A similar transverse channel 48 connects the passage 46 to the outlet 16. The plates have corrugations 28. In the spaces for the other fluid, e.g. steam, passages similar to 36, 44, 46 are connected in parallel to the inlet and outlet. Sealing strips defining the pasages are located in grooves in the plates. Where sealing strips are omitted from parts of the grooves, spacing of the plates is maintained by small cylinders 84 welded in the grooves, or by bosses or ribs pressed up and filled with welding material. Drainage passages for the dead spaces 78, 80 may be provided in the plates across the sealing strips.
Patent GB-1168229-A (GB)
Title: Improvements in and relating to Clamping and Gripping Pliers
Inventor: MARSOCCHI LORENZO
IPC: B25B7/12
Filed: 1968-04-22
Abstract: 1,168,229. Pliers. L. MARZOCCHI. 22 April, 1968 [28 April, 1967], No. 18928/68. Heading B4W. Clamping and gripping pliers comprise a jaw 3 articulated to the handle 2 and to the handle 6 and spring loaded in the opening direction, an elbow-lever disposed between the handles 2, 6, and the elbow of which is supported against an adjusting screw 9 displaceable in the longitudinal direction of the handle 2 to permit adjustment of the minimum opening of the jaws 3, 1, a stop engageable with either the handle 2 or the adjusting screw for limiting closure of the handles, and a sliding catch clamping device for locking the handles in any gripping position of the jaws against the spring- loading of the jaws. The clamping device comprises a bar 11 which may be articulated to the elbow-lever, and whose end 13 passes through a slot 14 in the arm 15 of a double-arm lever spring-biased into locking engagement with the bar 11 which may be smooth, notched, or of other surface configuration. The locking action is cancelled by movement of the arm 17 of the double-arm lever towards the bar, when desired.
Patent GB-603081-A (GB)
Title: Improvements relating to the production of sulphur trioxide
IPC: C01B17/58
Filed: 1944-10-04
Abstract: Sulphur trioxide is produced from a petroleum fraction containing sulphur in organically combined form by treatment with hydrogen in the presence of a hydrogenation catalyst at elevated temperature and pressure to convert the sulphur compounds into hydrogen sulphide, de-pressurizing the treated fraction to yield a gas consisting essentially of hydrogen sulphide, hydrogen, and methane, in which the percentage by volume of hydrogen sulphide is at least 40 per cent, burning the gas with air to provide a mixture containing sulphur dioxide and oxygen, and catalytically treating this mixture to produce sulphur trioxide.  Sufficient hydrogen should be used to maintain the vapour phase, and may be 1000-8000 cub. ft. per barrel of feedstock; the temperature may be 700-750 DEG  F. and the pressure 150-350 lbs. per sq. in. for light petroleum fractions or 1000-3000 lbs. per sq. in. for gas oil and higher fractions.  Suitable catalysts are the oxides and sulphides of aluminium, iron, nickel, cobalt, chromium, molybdenum, copper, manganese and tungsten; metals such as sodium, potassium, lithium, calcium, zinc, aluminium, manganese, iron, nickel, cobalt, or copper; compounds such as molydates, thiomolybdates, thiotungstates, and aluminates of metals of the 6th group.  In an example, a gas oil is treated in the presence of molybdenum trioxide on alumina, the resultant gas containing 42 per cent hydrogen sulphide being burnt with 8 volumes of air at 680 DEG  F. to give a mixture containing 4.0 per cent sulphur dioxide which is converted into sulphur trioxide using a vanadium pentoxide catalyst.  The Provisional Specification refers to Specification 602,097, and also to the addition of extra sulphur dioxide to the gas mixture before conversion to sulphur trioxide.
Patent GB-828739-A (GB)
Title: An improved method of making cellular polyethylene
Inventor: BLACK ROBERT MONRO
IPC: H01B3/44
Filed: 1957-06-17
Abstract: Cellular polyethylene is obtained by preheating and then subjecting to ionizing radiation, the preheating being such that the energy absorbed during irradiation causes the polyethylene to attain a temperature in its plastic range such that gas cells are formed therein-a tough non-porous outer skin being formed. Radiations specified are electrons of at least 1 Me V. energy, gamma rays or thermal neutrons-a dosage of 5-20 M rad. being effective.ALSO:Cellular polythene is obtained by preheating and then subjecting to ionizing radiation, the preheating being such that the energy absorbed during irradiation causes the polythene to attain a temperature in its plastic range such that gas cells are formed therein-a tough, non-porous outer skin being formed. Radiations specified are electrons of at least 1 MeV. energy, gamma rays or thermal neutrons-a dosage of 5-20 Mrad. being effective.ALSO:Cellular polyethylene is obtained by preheating then subjecting to ionising radiation, the preheating being such that the energy absorbed during irradiation causes the polyethylene to attain a temperature in its plastic range such that gas cells are formed therein.  A tough non-porous outer skin is formed.  A layer of solid polyethylene may be applied or extruded on a wire conductor and expanded in situ on the wire.  Radiations specified are electrons of at lever 1 MeV. energy, gamma rays or thermal neutrons-a dosage of 5-20 Mrad being effective.
Patent GB-491618-A (GB)
Title: A process for the production of opaque protective coatings on aluminium and its alloys
IPC: C25D11/06
Filed: 1937-07-08
Abstract: 491,618. Electrolytic surface treatment of aluminium and its alloys ; ornamenting. SCHENK, M. July 8, 1937, No. 19024. Convention date, July 13, 1936. Addition to 455,412. [Class 41] [Also in Group XV] Aluminium or an alloy thereof is provided with an opaque protective coating by electrolytic treatment with A.C. or D.C. (as anode) in a bath containing at least one salt of zirconium or of thorium, with or without a titanium salt, e.g. one titanium and one zirconium salt, or one titanium and one thorium, or one zirconium and one thorium. The bath may contain also (1) phosphoric, arsenic, boric, chromic or permanganic acid, or (2) oxalic, malonic, succinic, glycollic, lactic, gluconic, tartaric or citric acid, or (3) the acid or neutral salts of these inorganic or organic acids with alkali metals, ammonium or organic bases, or (4) glycerine, glycol, polyvinyl alcohol, mannite, glucose, cane sugar, dimethylcellulose or dextrine. The aluminium &c. article, before treatment, may be degreased with, e.g. benzene, etched with, e.g. soda or nitric acid, or given a polished, sand-blasted or fluted surface, whereby bright enamel-like or half-matte to fully matte effects can be obtained. Aluminiumoxide-coated articles may be treated according to the invention. The coating may be (a) coloured with dyestuffs, coloured oils, metallic soaps, or varnishes, or whitened with water solutions of titanium, zirconium or thorium salts, the salts being hydrolysed by heat or chemicals, or (b) made water-repellent with aliphatic acids or alkali or strong base salts thereof, or with sulphonated oil, or (c) coated with varnishes or resins. The coated articles are washed, dyed &c., and the coating is hardened by heating at 100-150 C. for 15-45 minutes. The Specification as open to inspection under Sect. 91 refers to the use of hafnium salts instead of zirconium or thorium salts and to waterproofing the coating by treatment with fatty acid compounds. This subject-matter does not appear in the Specification as accepted.
Patent GB-1208031-A (GB)
Title: Improvements in or relating to fluorimeters for providing a continuous measurement of the fluorescence of a fluid stream
IPC: G01N21/64
Filed: 1968-04-23
Abstract: 1,208,031. 031. Ultraviolet filter. HONEYWELL Inc. April 23, 1968, [April 25, 1967], No. 19046/68 Heading G2J. [Also in Division G1] A filter which transmits visible light and absorbs ultraviolet comprises a thin coating of a substituted benzotriazole material on a glass substrate.
Patent GB-918081-A (GB)
Title: Improvements in or relating to pick-up arms and mounting means therefor of gramophone record playing apparatus
IPC: G11B3/08
Filed: 1959-06-04
Abstract: 918,081. Supporting gramophone pick-ups. INDUSTRIES MUSICALES ET ELECTRIQUES PATHE MARCONI. June 4, 1959 [July 1, 1958], No. 19132/59. Class 40 (2). A gramophone pick-up support pillar has circular portions 13, 46 engaging oppositelyfacing V-form bearings 42, 47, the co-operating bearing surfaces being of metal and selflubricating plastic. A torsion spring 36, terminating in a cantilever 38 engages the pick-up arm 30, to reduce the pick-up loading to an amount adjustable by turning a screw 37. The bearing A-A (Fig. 5) may be of similar type to the bearing B-B.
Patent GB-359515-A (GB)
Title: Improvements in or relating to hydraulic conveying systems for use in mines
IPC: B65G53/30
Filed: 1930-06-24
Abstract: 359,515. Water channel conveyers for mines &c. BROWN, J., Bokaro P.O., Bermo, East India Railway, India. June 24, 1930, No. 19157. [Classes 78 (i) and 78 (iv).] A water channel conveyer system for transporting coal &c., particularly suitable for use in mines, comprises inclined troughs, means for supplying water thereto either continuously or intermittently, means for withdrawing water from and returning it to the troughs, a settling tank and a tub filling station. The coal 3 from a loading plate 2 is shovelled into the trough 1. The trough consists of overlapping lengths secured together by clips &e. The trough 1, Fig. 4, extends from the loading station A to the tub-filling station E, a pump ]9 supplying water from a settling tank 14 through a pipe 22 to the loading station. Perforations 6 in the trough allow water to escape therefrom on a steep incline B, C, and pass through a pipe 8 to a lesser incline C, D. The tub-filling trough section 15 is steeply inclined, water being removed therefrom by a pipe 13 and the section having a pipe 16 at its discharge end. An intermittent flush may be provided by a duplex rocking tank 26, Fig. 5, mounted on a pivot 29 and supplied with water from a pipe 33. The tank tips sidewise as the respective compartments 27, 28 are filled. As applied to the working face in a mine having an inclined seam, the troughs 1, Fig. 6, are laid parallel to the coal faces C which are arranged on a slope and two troughs may join together in a gallery 38 through the goaf G leading to the tubs 18. The pipe line 39 extends upwards to a tank 25.
Patent GB-739208-A (GB)
Title: Improvements relating to electric circuit breakers
Inventor: WOLFF HERBERT WERNER
IPC: H01H71/74
Filed: 1953-07-10
Abstract: 739,208. Automatic circuit-breakers. DORMAN & SMITH, Ltd. June 18, 1954 [July 10, 1953], No. 19179/53. Class 38 (5). An electromagnetic trip mechanism includes a pivoted armature 8 which is constructed so that it, or the part thereof which projects over an overload coil 9, can be attached or detached, after the remainder of the circuit-breaker is mounted in its container or frame 14, by a push or pull motion without the manipulation of screws or pins. The armature may be pro. vided with arms 15 having plain or spring hooks 16 which engage a pivot 12 and support the armature thereon, or the arms may be resilient and have projections thereon which engage recesses in the sides of the frame 14. Alternatively, or additionally, the armature may be made in two pieces, that piece which projects over the coil 9 being detachable from the remainder.
Patent GB-383234-A (GB)
Title: Rotating air-cylinders and pistons for machine-tools with pneumatically-operated chucks
IPC: B23B31/30
Filed: 1932-07-07
Abstract: 383,234. Chucks. HERBERT, SIR A., LLOYD, A. H., and TIPPLE, E. W., Canal Road, Edgwick, Coventry. July 7, 1932, No. 19223. [Class 83 (iii).] The operating means for a pneumatic chuck comprise a piston slidable in a rotating cylinder the former carrying self-sealing packing around its periphery and being secured to a piston-rod slidably mounted in both end walls of the cylinder, and glands for the same also provided with self-sealing packings, air pressure being led to opposite faces of the piston through ducts in the rod. The steel cylinder 2 secured by a flange 4 to the rotating part 5 of a lathe or like headstock carries within its bore the piston 11 having self-sealing packing 14 secured by a ring 17. Cast-iron or bronze bushes 6, spigoted in the cylinder ends, carry the rod 7, self-sealing packings 8 being provided in each. Ducts 18, 19 admit air from supply points 21 to both sides of the piston via the air-supply sleeve 20. Annular grooves 22, in communication with the ducts, are air-sealed by white metal packing pieces 25, 26, 27 which are so shaped to be tightened against the rod when the gland nuts 29 are screwed up.
Patent GB-513808-A (GB)
Title: Apparatus for manipulating webs, particularly bands of fabric and other components for use in the manufacture of pneumatic tyres
IPC: B29D30/42
Filed: 1938-06-29
Abstract: 513,808. Pneumatic tyres; feeding webs ; compound sheet materials. DUNLOP RUBBER CO., Ltd. June 29, 1938, No. 19279. Convention date, June 30, 1937. [Class 144 (i)] [Also in Groups VIII and XVI] Apparatus for manipulating webs, particularly fabric bands and other components for use in building-up a pneumatic tyre, comprises an assembly region I wherein the webs are superposed, an operating region III wherein the compound web is divided into desired lengths, and an intermediate region II in which the material is maintained in a series of festoons so as to provide for variations in the traverse-speed of the material in the assembly and operating regions. As shown in Fig. 1, webs a, b are fed (from stock rolls) over rollers 41, 42, through guides 12, 12a on tables 11, 11a, and over driven rollers 9, 9a on to conveyer-bands 16, 16a where the webs are consolidated by a pressure-roll 23. The compound web is then led by a conveyor 24 over the first of a series of rollers 26, 28, 31, by means of which the material is maintained in a series of festoons 80, 81 between the assembly and operating regions. The latter includes a conveyor 36 on which the compound web is fed over a table for the desired manipu]ation, e.g. severing by means of knives 61, 62. A table 63 is shown on which the severed lengths may be joined and stretched between fixed and movable rollers 64, 65. Means, indicated at 44, 44a, may be provided for applying adhesive to the webs in the assembly region. As shown in Fig. 2, the feed-rolls each consist of a pair of rollers 9 (or 9a) which are adjustable on a right-and-left threaded spindle 17 for adaptation to different widths of web. To ensure an effective drive for the webs over the rollers 9, 9a, the latter are provided with radial apertures 60 which lead into axial passages 59 arranged in register with a fixed suction orifice 70.
Patent GB-1510653-A (GB)
Title: Device for monitoring gases
IPC: F02D41/14
Filed: 1975-05-08
Abstract: 1510653 Gas analysis ROBERT BOSCH GmbH 8 May 1975 [6 Dec 1974] 19302/75 Heading G1N The combustible component content in a gas mixture is measured by the change in temperature and resistance of a heated wire located in the gas mixture. As shown, Fig. 4, the wire 10 is connected in a bridge network and fed with current via transistor 30 sufficient to heat it to cause combustion of oxidizable gas components. Unbalance of the bridge network produced by the resulting change in temperature and resistance of wire 10 is amplified at 24 to produce a corresponding change in the collector emitter current of transistor 26, which is measured at 25 and changes the voltage to one input of differential amplifier 37 whose other input is a reference voltage. The amplifier output alters the current supplied by transistor 30 to effectively restore the resistance and temperature of wire 10 to its normal value. The current through wire 10 is periodically increased to burn off any crust that may be formed on its surface. The wire 10 may alternatively be fed with constant current and its resistance change measured directly. The above may be combined with an infrared analyzer measuring the CO content of the gas mixture, which is subtracted from the total combustible content to determine the hydrocarbon content.
Patent GB-258393-A (GB)
Title: Improvements in and relating to the cooling arrangements of internal combustion engines
IPC: F01P3/02
Filed: 1925-07-30
Abstract: 258,393. Richardsons, Westgarth, & Co., Ltd., and Burn, W. S. July 30, 1925. Cylinders, cooling.-Jets of cooling fluid one directed by pipes b on to the inner wall of a cylinder cover a the jets being arranged so as to distribute the fluid over the surface. Cooling water is supplied from a common chamber c arranged between the cylinder liner e and its jacket d. If the cover is axially adjustable a telescopic-joint, composed of two elbows g, h, and a pipe i sliding in one of them, or a toggle joint, is provided in the pipe line of each jet. The end of the outlet pipe from the cover is placed as near the inner wall as possible. In the case of a double-acting engine the top cover is cooled in a similar manner by jets supplied with water through the cylinder jacket from the common chamber c.
Patent GB-750330-A (GB)
Title: Improvements in or relating to the preparation of steroid substances
Inventor: WALKER THOMAS
IPC: C07J75/00
Filed: 1953-07-13
Abstract: 3-Keto-2-iodo-D 4-steroids and 3-keto-D 4-steroids are prepared by treatment of 3-keto-2:4-dibromoallosteroids with an alkali metal iodide soluble in the reaction medium, in the presence of an organic iodine compound which under the conditions of the reaction reacts with hydrogen iodide to form iodine and thereafter reducing the 3-keto-2-iodo-D 4-steroids produced.  The organic iodine compound is normally generated in situ by the addition of an organic substance having an active chlorine or bromine atom which reacts with alkali metal iodide with the replacement of chlorine or bromine by iodine, e.g. benzyl chloride, allyl bromide; the preferred compounds are a -halogeno ketones of formula R3.CO.CHX.R4, where R3 is an alkyl radical containing from 1-4 carbon atoms, R4 is an alkyl radical containing from 1-3 carbon atoms and X is Cl, Br or I.  Specified solvents are acetone, methyl ethyl ketone, t.-butanol, tetrahydrofuran and methyl cyanide.  In examples: (1) sodium iodide and bromoacetone or allyl bromide are refluxed in acetone, 17a :21 - diacetoxy - 2:4 - dibromo - 3:11:20-triketoallopregnane added and after further refluxing, the mixture is poured into aqueous sodium thiosulphate and extracted with methylene chloride; the residue after evaporation of the solvent (crude 2-iodosteroid), is reduced with chromous chloride solution to yield cortisone diacetate; (2) as in (1) 21 - acetoxy - 17a  - hydroxy - 2:4 - dibromo - 3:11:20 - triketoallopregnane is converted to cortisone 21-acetate; (3) cortisone diacetate is prepared as in (1) using bromomethyl ethyl ketone in methyl ethyl ketone.  Comparative experiments (without the addition of an activated halogen compound), are also described. Specifications 693,991, 746,488 and 748,779 are referred to.
Patent GB-623193-A (GB)
Title: Improvements in method of producing iron in pure or alloyed state
IPC: C25C1/06
Filed: 1946-06-28
Abstract: 623,193. Electrolytic production of iron or iron alloy. ANGEL, E. G. R. June 28, 1946, No. 19440. Convention date, June 30, 1945. [Class 41] A method of producing iron in pure or alloyed state includes forming a suspension of anhydrous iron oxide compounds in finelydivided state, preferably less than 01 mm., in an electrolyte of alkaline lye, intensely agitating the suspension to cause the compounds gradually to dissolve in the electrolyte, and subjecting the suspension or solution to electrolysis at a high temperature, for example 90‹ to 110‹ C., while using either insoluble anodes, especially nickel, nickel-plated iron or iron containing nickel, or soluble anodes of pure iron. For the production of an alloy of iron with a metal such as manganese, nickel, molybdenum or tungsten, such metal is added to the electrolyte either as a part of the anhydrous iron compound or as an addition thereto in the form of a compound preferably an oxide free from water, or alternatively the metal is contained in the soluble iron anodes. Other metals for example vanadium are not recovered on the cathode but remain as alkali salts, from which the metals can be recovered. The alloying substances are preferably added in the form of iron ores of the oxide form, for example to produce an alloy of iron and manganese, iron ore containing manganese is added in finely-divided state. The anhydrous iron compounds may consist of magnetite, haematite, roasted iron pyrites, roasted siderite or anhydrous ferro-oxygen by-products from chemical processes. The suspension may be agitated by production of vibrations beyond audiofrequency. The concentration of alkaline lye the higher the degree of disintegration or the rate of dissolution of the raw material in the lye.