baber/WOPTO huggingface dataset:
Patent GB-1514038-A (GB)
Title: Rotary positive-displacement fluid device
IPC: F04C2/10
Filed: 1976-10-05
Abstract: 1514038 Rotary positive-displacement tluidmachines SAFE WAY HYDRAULICS Inc 5 Oct 1976 [6 Oct 1975] 41270/76 Heading F1F In a machine that may be a pump or a motor and may be of the gerotor type (as shown) a rotor 11 with a cylindrical outer surface 19 accommodated in a generally cylindrical chamber 10 is supported partly by bearing elements 24 linked in pairs and biased towards the rotor by longitudinally outwardly curved flexible and resilient members 23. Alternatively, the members 23 are longitudinally straight and housing surfaces 20 contiguous therewith are longitudinally inwardly curved so as to bias the elements 24 towards the rotor.
Patent GB-901698-A (GB)
Title: Catalyst and dehydrogenation process
IPC: C07D213/127
Filed: 1960-12-01
Abstract: The catalytic composition of the parent Specification containing 2 to 10% iron oxide, 22 to 68% of chromium oxide and 22 to 79% of a potassium compound (calculated as K2CO3) selected from the group KOH, K2O and K2CO3, is modified so as to contain from 1 to 30% of iron oxide and from 5 to 79% of potassium compound.  Similarly, the method of the parent Specification in which an alkyl pyridine containing at least one alkyl group having at least two carbon atoms is dehydrogenated is modified by dehydrogenating in the presence of a catalytic composition as modified above.  A comparative example is given.ALSO:The method of the parent Specification, in which an alkylpyridine containing at least one alkyl group having at least two carbon atoms is dehydrogenated in the presence of a catalyst comprising 20-68% chromium oxide, 1-10% iron oxide and 22-79% of a potassium compound (calculated as K2CO3) selected from the group consisting of KOH, K2O and K2CO3, is modified in that the catalyst composition used contains 1-30% iron oxide and 5-79% of potassium compound.  A comparative example describes the dehydrogenation of 2-methyl-5-ethylpyridine to give methyl vinyl pyridine.
Patent GB-1483535-A (GB)
Title: Magnesium-mercuric dioxysulphate primary cell
IPC: H01M6/04
Filed: 1974-09-24
Abstract: 1483535 Dry cells S RUBEN 24 Sept 1974 [24 Sept 1973] 41527/74 Heading H1B An electric dry cell particularly for a watch comprises a container 1 of stainless steel which serves as the cathode contact, an electrolyte of magnesium perchlorate added to a cathode depolarizer consisting of mercuric dioxysulphate and carbon and pressed into a cake 2, an anode disc 4 of Mg separated from the container 1 by a grommet 5 and from the depolarizer 2 by a cellulose disc 3, an insulating tape covering 6 over the outer surface of the disc 4, the tape having a hole therein to provide a contact surface on the anode, the container being crimped to the grommet and the cell top with a resin seal between the crimped edge and the anode disc.
Patent GB-870495-A (GB)
Title: Improvements in or relating to coal cutter chains
Inventor: PROCTOR SIDNEY ERNEST
IPC: E21C25/36
Filed: 1958-12-24
Abstract: 870,495. Coal-cutter chains. AUSTIN HOY & CO. Ltd. Dec. 23, 1959 [Dec. 24, 1958], No. 41743/58. Addition to 801,181. Class 24. A coal-cutter chain has alternate link bearing pins 23 disposed at right angles to the remaining pins 24. This enables the chain to flex in two directions.
Patent GB-1280237-A (GB)
Title: A process for removing sulfur oxides from waste gas
IPC: B01D53/02
Filed: 1969-08-21
Abstract: 1280237 Adsorption of the oxides of sulphur TAKEDA YAKUHIN KOGYO KK 21 Aug 1969 [27 Aug 1968 13 May 1969] 41806/69 Heading B1L Oxides of sulphur are removed from waste gases, e.g. from oil or coal furnaces or sintering or roasting plants or from sulphonation plants by passing the gases via conduit 1 and dust catcher 3 to an adsorption tower 4 kept at a temperature up to 200C and containing activated carbon, especially a vanadium oxidesupporting activated carbon. Purified waste gases exit through a stack 5 whilst the exhausted activated carbon is moved to a desorption tower 6 where it contacts a desorbing gas comprising at least 40% CO and/or H 2  at 230-450C and optionally under pressure. The gas is produced by a generator 7. The sulphur products are removed from the desorbing. gas by condensers 13, 14..Before being recycled. Alternatively, untreated desorbing gas may be recycled alone via line 9 and heater 10 or may be mixed with incoming pure gas from the generator 7. The desorbed activated carbon is returned to the tower 4 via transfer system 15. The adsorption may be carried out in a fixed, moving or fluidised bed system. With a moving bed the waste gases may flow in counter current, in parallel or cross current relative to the carbon.
Patent GB-900675-A (GB)
Title: Improvements relating to apparatus for the processing of stereo type printing plates
IPC: B41D5/00
Filed: 1959-12-10
Abstract: 900,675. Printing-surfaces. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. Dec. 10, 1959 [Dec. 11, 1958], No. 42042/59. Class 100 (2). In apparatus for casting and boring stereotype printing plates there is incorporated a printing mechanism with interchangeable printing elements for printing identification marks on each plate. As shown, a stereotype plate 1 emerging from a boring box 2 towards a cooling box (not shown) has numbers printed thereon by printing elements situated in recesses 11, 12 in a disc 9 secured to a roller having a rubber tyre 10 which is driven by friction from the moving plate 1. The disc and roller are rotatably mounted on a pivot 6 in a spring-urged arm pivoted on a bracket 5 fixed to the boring box 2. The printing elements may comprise number printing plates each consisting of a metal base and numbers, made from soft rubber, felt, or plastic material, secured thereto, and are held in dovetailed slots by springs. In a modification, the printing elements may have conical studs which engage holes in the disc periphery. A cylindrical felt pad 15 impregnated with marking ink engages the printing elements as the disc 9 rotates. The numbering device may be provided between the casting apparatus and boring apparatus, or between the cooling apparatus and conveyer belt which delivers the plates therefrom.
Patent GB-1365882-A (GB)
Title: Apparatus for heating air for use in warm air central heating sys tems
IPC: F24H7/04
Filed: 1971-08-26
Abstract: 1365882 Storage heaters A G SUTHERLAND Ltd 26 Aug 1971 [3 Sept 1970] 42114/70 Heading F4U An electrically heated thermal storage radiator for a warm air central heating system comprises a hot-air fan 10 operative to cause ambient air to pass from a filtered inlet 8 through passages 4 in the core to be heated and to a circulating fan 9 which mixes the heated air with cool ambient air from the inlet 8 to achieve a predetermined output temperature, the speed of the fan 10 being modified in response to the temperature of the mixed air supply leaving a plenum chamber 7. The circulating fan 9 has an inlet 17 partially obstructed by a motor 17 and a further, unobstructed inlet 18 faces the outlet 19 of the hot-air fan 10 so that heated air is at least partially mixed with cool air prior to passage through the fan 9. The hot-air fan 10 operates continuously while the fan 9 is operating and has a continuously variable speed. The fans may have separate motors or a single motor combined with a variable slip clutch. The core may comprise fire bricks or ferric oxide blocks.
Patent GB-1147337-A (GB)
Title: Improvements in power transmission units comprising speed reducing gearing
Inventor: FULLALOVE RICHARD
IPC: F16H57/025
Filed: 1965-10-05
Abstract: 1,147,337. Toothed and belt gearing. HENRY SIMON Ltd. 19 Sept., 1966 [5 Oct., 1965], No. 42142/65. Heading F2Q. [Also in Division H1] The casing 5 of a reduction gear unit 1 is supported on a driving or driven shaft (not shown) and is held against rotation by a torque arm connected to fixed structure by resilient means 21 adapted to yield at a predeterminal load to allow the torque arm to move axially to operate a switch 25 to disconnect or reduce the power supply to a prime mover 2 driving the gear unit through a belt or chain drive 4 or other gearing. The torque arm includes a turnbuckle 11 for length adjustment to initially tension the belt 4 and is pivoted at one end 8 to extentions 6, 7 of the casing 5. Lock nuts 17, 18 on the arm are urged against a pivotally mounted stop 15 by an adjustably preloaded tubular rubber or helical metal spring 21, the thrust of which is reacted against the opposite end of the stop 15 via a disc 20 and a sleeve 19. When the reaction torque on the casing 5 exceeds a value determined by the preloading of the spring 21, the latter yields, allowing the arm to move axially rightwards (Fig. 1) to actuate a switch 25 either directly or through a magnifying linkage to reduce or disconnect the current supply to the electric motor 2 and to initiate an alarm signal. If the prime mover is a pneumatic or hydraulic motor, the movement of the arm is arranged to directly or indirectly control a valve governing the supply of pressure fluid to the motor.
Patent GB-1472815-A (GB)
Title: Polyazo dyestuffs
IPC: C09B35/46
Filed: 1975-10-15
Abstract: 1472815 Water-soluble trisazo dyes BAYER AG 15 Oct 1975 [6 Dec 1974] 42262/75 Heading C4P Novel dyestuffs of the formula (wherein R is C 1-6  alkyl; B is phenyl, 2- or 3- sulpho-phenyl or 2,5-disulphophenyl; R 4  is H or alkyl; R 5  is H, alkyl, OH, alkoxy, NH 2 , NO 2 , Cl, CO 2 H or SO 3 H; and R 6  is selected from the same values as R 5  except SO 3 H) are prepared by coupling one mole of an appropriate bis-diazotized dialkoxy-diamino-diphenyl with, on the one hand, phenol or an appropriately substituted phenol and, on the other hand, the monoazo dyestuff obtained by acid coupling of diazotized BNH 2  with Chicago acid, the couplings being in any desired sequence, and then, if desired, alkylating the product to introduce R 4  when alkyl. They may be used to dye or print natural or synthetic materials containing hydroxyl or amino groups, e.g. cotton, regenerated cellulose, paper, wool, silk, polyamides and leather. Lithium, sodium and various amine salts of the dyestuffs in concentrated aqueous solutions are described.
Patent GB-959952-A (GB)
Title: Toothed wheel change speed gear
IPC: F16H63/04
Filed: 1961-11-27
Abstract: 959,952. Change speed control. FICHTEL & SACHS A.G. Nov. 27, 1961 [Dec. 2, 1960], No. 42309/61. Heading F2D. In a toothed change speed gear having a step-by-step change and a neutral engaging device, reverse gear is engaged by actuation of the neutral device past the neutral position. Three gears 26, 27, 28 are rigidly mounted on an input shaft 24 which carries a freely rotatable gear 29. These gears mesh, respectively, with gears 30, 31, 32, clutchable by sliding keys 37 to an output shaft 25 having a fourth gear 33 rigid therewith. The sliding keys 37 are actuated by a segment 18, attached to a shift fork 8, which segment also actuates a dog clutch member 39 to connect gear 29 to the shaft 24. A reverse shaft 44 has a gear 49 engaging gear 30 and a sliding gear 48 engageable with gear 29 under the control of a fork 4 actuable by a lever 5. A neutral selector lever 6 has a pin 7 and slot 50 connection with the lever 5 and is rigid with a shaft 2 carrying a cam 21 which moves a shift dog 51, pivoted on a spring-loaded detent lever 55, to engage notches 14 in a slideway 10 attached to the shift fork 8 to attain a neutral position intermediate any gear on operation of the lever 6. From neutral position, further movement of the lever 6 produces rotation of the lever 5 to engage reverse gear and locks the forward gears in neutral. The pin-and-slot connection may be omitted if the travel of the reverse gear 48 is sufficient to prevent engagement in neutral.
Patent GB-1115965-A (GB)
Title: Semiconductor structure
IPC: H01L29/49
Filed: 1966-09-22
Abstract: A contact to a semi-conductor device comprises superposed layers of a solid solution of manganese and manganese oxide, manganese, and a contact metal selected from the group consisting of gold, silver, copper, nickel, platinum, palladium, rhodium. The contact is produced by depositing a layer of manganese on to an oxide layer on the semi-conductor body, depositing a layer of the contact metal over the layer of manganese, and heating to react the manganese with the oxide layer to form the solid solution of manganese and manganese oxide covered by a residual layer of manganese and the layer of contact metal.  The metal layers may be vapour deposited using separate sources or using a single source comprising an alloy of manganese and silver the temperature of which is slowly raised to vapour deposit first the layer of manganese, followed by a graded layer of manganesesilver, and finally the layer of silver.  The semi-conductor material may be silicon, germanium or silicon carbide or an AIII BV or an AII BVI compound.  In an example one face of a silicon wafer containing a junction was cleaned and exposed to the air to allow a silicon oxide coating to form.  The other faces were masked and layers of manganese and silver deposited from an alloy ribbon in dry hydrogen to react the manganese with the silicon oxide, a molybdenum contact was applied to the opposite face and the device subjected to electrical and mechanical tests.
Patent GB-425300-A (GB)
Abstract: 425,300. Sanitary vaporizers. WEINBERGER, M., 97, Biddulph Mansions, Elgin Avenue, Maida Vale, London. July 6, 1933, No. 19161. [Class 81 (i)] Apparatus for vaporizing chemicals for purifying air in closed rooms comprises a tubular casing 1, of circular, square or other section, mounted on a base 2 and enclosing an electric heater 3 which is small in relation to the size of the casing. The casing is formed with air-inlet apertures 8 and supports a cup 4 for the chemicals to be vaporized. An annular space 6 is left between the cup 4 and the casing or, in a modification, air shafts may pass through the cup. The cup, or the air shafts, may have flanges, such as 5, projecting into the path of the rising air to produce turbulence. A chimney 7 fitted over a liner in the casing or hinged thereto is tapered towards the top. Air inlets in the base may replace the apertures 8 and a small electric fan may be fitted under the heater to augment the air supply. Specification 311,733, [Class 81 (i)], is referred to. The drawing accompanying the Provisional Specification shows a chimney of uniform crosssection.
Patent GB-1141255-A (GB)
Title: Deodorizing acrylic polymers
IPC: C08F6/00
Filed: 1966-09-23
Abstract: 1,141,255. Deodorizing acrylic polymers. CIBA Ltd. 23 Sept., 1966 [15 Oct., 1965], No. 42643/66. Heading C3P. A process for deodorizing acrylic polymers comprises contacting a solution, which exhibits an acrylic odour, of a polymer or copolymer of acrylic acid or derivative of such an acid at elevated temperature with a C 1- C 4  alkoxide of an alkali or alkaline earth metal. The alkoxide may be added as such to the polymer solution, or may be formed in situ by adding free alkali or alkaline earth metal to an alcoholic polymer solution. To prevent yellowing of the polymer, an oxidizing agent such as methyl ethyl ketone peroxide may be present in the polymer solution. Examples illustrate the deodorization of ethyl acrylate - t - butylacrylamide, methyl acrylatet - butylacrylamide - acrylonitrile, dimethylaminoethyl acrylate - t - butyl acrylamide, n-butyl acrylate - t - butylacrylamide - vinylidene chloride and 2-ethylhexyl acrylate-t-butylacrylamide - styrene - acrylic acid copolymers. Also mentioned are polymers of methacrylate esters and acrylate salts, e.g. the calcium salt, and copolymers with vinyl acetate, butadiene, alkyl fumarates or maleates, divinyl ether and divinyl sulphone.
Patent GB-1435780-A (GB)
Title: Floating breakwater
IPC: E02B3/06
Filed: 1973-09-13
Abstract: 1435780 Floating breakwaters BRIDGESTONE TIRE KK 13 Sept 1973 [19 Sept 1972 30 Sept 1972 9 May 1973] 42977/73 Heading E1H A floating breakwater which is moored to the sea bed comprises a plurality of spaced parallel elongate bodies formed from upper and lower portions 15, 16 respectively and connected together by a plurality of spaced elongate cylindrical members 17, the upper portions 15 being arranged to project in use above water level by at least half the height of the ambient waves by choosing the ratio of flotation and ballast materials in the upper and lower portions, the specific gravity of the breakwater being arranged to lie between 0.15 and 0.75. The ballast material is preferably water and the flotation material a synthetic resin foam. Additional ballasting material may be earth, sand, concrete, or iron blocks.
Patent GB-905501-A (GB)
Title: Improvements in and relating to the purification of b-trichloro-borazole
IPC: C01B35/14
Filed: 1960-12-16
Abstract: B-trichloro-borazole is purified by dissolving at not more than 85 DEG  C. in an anhydrous mineral oil, of b. pt. at least 300 DEG  C., separating off the insoluble impurities and distilling B-trichloroborazole from the solution under anhydrous conditions at subatmospheric pressure, e.g. 10 - 40 mm. Hg at 80 DEG  - 200 DEG C. The process may be carried out continuously.  Dissolution in the mineral oil may be assisted by stirring and insoluble impurities separated by filtering, centrifuge, or decantation.  In the example, the solution is treated with decolourizing carbon before filtration.
Patent GB-1279302-A (GB)
Title: Production of non-aqueous hydrogen peroxide solutions
IPC: C01B15/017
Filed: 1969-09-03
Abstract: 1279302 Hydrogen peroxide DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 3 Sept 1969 [16 Sept 1968] 43515/69 Heading C1A A non-aqueous solution of hydrogen peroxide is produced by separating hydrogen peroxide from a working solution obtained after the oxidation stage in the anthraquinone process, by means of a stripping distillation under reduced pressure, with the vapour of an organic solvent as a stripping agent, and after condensation, is obtained in the form of a non-aqueous solution in the stripping solvent; any components of the working solution simultaneously separated in the distillation being deposited in a phase separation vessel and returned to the working solution. The " working solution " is a solution of one or more alkyl anthraquinones in a high boiling point solvent, resistant to both oxygen and hydrogen peroxide. The stripping agent may be a carboxylic acid, such as formic acid, acetic acid or propionic acid, an ester, such as ethyl acetate, propyl acetate or butyl acetate, or an alcohol such as propanol, butanol or cyclohexanol. Mixtures of these compounds may also be used.
Patent GB-1059518-A (GB)
Title: Phosphors
IPC: C09K11/08
Filed: 1964-10-30
Abstract: A thermo-luminescent material consists of a crystal of lithium fluoride activated by one or more of the group magnesium, calcium or barium at 40-400 p.p.m., and one or more of the group aluminium, titanium or europium, at 20-200 p.p.m.  The material is preferably prepared by zone freezing in a vacuum or inert atmosphere, powdering to 80-200 mesh particles, and annealing at 400 DEG  C.  The material is preferably annealed at 100 DEG  C. after exposure to radiation, and then the dose measured by heating to 350 DEG  C.  Crystals of Li6 may be used to measure a thermal neutron dose, while an adjacent Li7 crystal measures effecting a gamma dose.
Patent GB-1397804-A (GB)
Title: Colour cathode ray tube
IPC: H01J29/70
Filed: 1972-09-26
Abstract: 1397804 Colour television tubes TOKYO SHIBAURA ELECTRIC CO Ltd 26 Sept 1972 44348/72 Heading H1D In a colour cathode ray tube employing the electron guns arranged in a line, the beams 12, 14, 16 from which pass through a magnetic convergence device and then through electromagnetic scanning coils, disturbance of the convergence fields by the scanning fields and non-uniform raster size is reduced by the inclusion in the convergence device of a pair of magnetic shielding plates 38, 40 between the central beam and the two side beams, which shielding plates are convex towards the central beam. In a modified arrangement (Fig. 3, not shown), the plates 38 and 40 are made of plane portions, their centres being stepped towards the central beam. As shown, the convergence magnetic field operators include dynamic convergence coils 48, 50 wound around the legs of a U-shaped core 42, and static convergence permanent magnets 56.
Patent GB-1138248-A (GB)
Title: Esters of testosterone and related 17-ß-ols and their preparation
IPC: C07J1/00
Filed: 1966-10-04
Abstract: 1,138,248. Esters of testosterone and related 17#-ols. E.I. DU PONT DE NEMOURS & CO. 4 Oct., 1966 [11 Oct., 1965; 15 Sept., 1966], No. 44349/66. Headings C2C and C2U. Novel steroid esters of the formula (wherein a, b and c represent single or double bonds in the 2<SP>1</SP>(3<SP>1</SP>), 4(5) and 1(2) positions respectively; X is H, C 1-6  n-alkyl, CF 3 , phenyl, C 7-10  alkylphenyl, or, when a is a single bond, can also be C 1-6  n-alkoxy, halogen or cyano; y is H or CH 3 ; in #<SP>4</SP> compounds, R<SP>1</SP> is H, R<SP>2</SP> is H, chlorine or C 1-3  alkyl and R<SP>3</SP> is H or, when R<SP>2</SP> is H, it can also be C 1-3  alkyl; in ring A saturated compounds, R<SP>1</SP> is H, C 1-3  alkyl or = CHOH, R<SP>2</SP> is H, or, when R<SP>1</SP> is H, it can also be C 1-3  alkyl, and R<SP>3</SP> is H; and in #<SP>1</SP> compounds, #<SP>1,4</SP> compounds being excluded, R<SP>1</SP> is C 1-3  alkyl, and R<SP>2</SP> and R<SP>3</SP> are H; any substituent, where possible, and any 5-H being in the alpha configuration) are prepared from the free 17#-ols and the appropriate acids or their halides, lower alkyl esters or anhydrides or mixed anhydrides. 4 - X - bicycle[2,2,2] - octane and -oct - 2<SP>1</SP>- ene- 1-carboxylic acids are prepared from ethyl 6- X-α- pyrone-3-carboxylates and ethylene via the ethyl esters which are subsequently hydrolysed. With thionyl chloride they give the acid chlorides.
Patent GB-1184864-A (GB)
Title: Foamable Ceramic Compositions and Foamed Ceramic Products prepared therefrom
Inventor: OTSUKA MASATOMI
IPC: C04B38/02
Filed: 1968-09-18
Abstract: 1,184,864. Cellular ceramics. OTSUKA KAGAKU YAKUHIN K.K. 18 Sept., 1968, No. 44394/68. Headings C1H, C1J and C1M. A foamable ceramic composition comprises in weight parts 100 of ceramic powder, 40 to 150 of water glass and 1 to 10 of a N-based organic decomposing at 100-250‹ C. Optionals are silicofluorides, fluozirconates, fluothallates, fluostannates, colloidal silica or alumina. The exemplified ceramics include nitrides, e.g. BezN2, BN; carbides, e.g. ThC2, TiC, ZrC, MoC; oxides, e.g. Cr2O3, FeO; kaolin, barite, quartz, dolomite, talc and wollastonite, whilst the organics include azo compounds, hydrazides, semicarbazides and a polyamine. Other optionals are fibres, e.g. asbestos, glass, rock wool, polyamide and polyester; metal powders; bentonite, alginates, pigments and stabilizers, e.g. P.V.A. starch, NaSt and phloxine. The composition is heated at the decomposition temperature to 300‹ C. to give the cellular product which can then be fired, e.g. at 800- 1600‹ C. When chromia pigment is used in the composition a green semi-porcelain results. A yellow glaze is applied to a tile by including Cadmium Yellow in the frit, an example of which is given.