baber/WOPTO huggingface dataset:
Patent GB-1413265-A (GB)
Title: Method of producing citrine crystals
IPC: C30B7/00
Filed: 1974-02-06
Abstract: 1413265 Producing citrine (silica) crystals VSESOJUZNY ORDENA TRLIDOVOGO KRASNOGO ZNAMENI NAUCHNO-ISSLEDOVATELSKY INSTITUT SINTEZA MINERALNOGO SYRYA 6 Feb 1974 5471/74 Heading C1A [Also in Division B1] Citrine crystals are produced by introducing into an autoclave a charge which comprises crystalline quartz, crystalline quartz seeding plates each one of which is oriented parallel to the pinacoid crystallographie plane or parallel to planes inclined at an angle of up to 20 degrees to the pinacoid plane, an aqueous solution of K 2 CO 3  having a concentration of from 5-10 wt. per cent and containing from 2-20 grams of metallic iron/litre of solution, and from 1-2 grms./litre of the solution of an oxidizing agent able to oxidize the iron to ferric ions, and growing citrine crystals at a temperature of from 300-345‹ C., under a pressure of from 300- 1000 kg./cm.<SP>2</SP> and at a rate of from 0À2-1 mm./ day. The oxidizing agents preferably used are the nitrites and nitrates of alkali metals (e.g. lithium) and potassium permanganate.
Patent GB-562946-A (GB)
Title: Improvements in or relating to air heating apparatus
IPC: F24H3/06
Filed: 1943-04-06
Abstract: 562,946. Air heating stoves. EATON MANUFACTURING CO. April 6, 1943, No. 5497. Convention date, June 5, 1942. [Class 64 (i)] [Also in Groups X, XI, XII and XXXVI] Air is forced by a fan 16 through a casing 8 over the outer surface of a combustion chamber having an oil-fuel burner 29, the fan being driven by an electric motor 14 supplied with current from a thermo - electric battery having elements with one end in the path of the hot gases and the other end in the path of the air current through the heater. The thermocouples consist of strips of unlike metals 52 welded together in series and supported by nested refractory rings 55 forming the combustion chamber. Fuel is supplied from a reservoir 22 by a hand or motor operated pump and passes through a supply pipe 25 coiled around the burner casing. The burner is ignited by a flint spark igniter 42 in a fuel well at the bottom of the housing. In a modification, the fan is arranged at the gas outlet end of the casing and part of the air from the fan is forced through a perforated pipe into the combustion chamber to assist combustion.
Patent GB-373273-A (GB)
Title: Improvements in regulator valves
IPC: F23L17/16
Filed: 1931-02-23
Abstract: 373,273. Locomotive regulator valves. OWEN, H., 4, Manor Terrace, Headingley, Leeds, and OWEN, A. E., 107, Palmerston Street, Derby. Feb. 23, 1931, No. 5565. [Classes 79 (i) and 79 (v).] The regulator valve of a locomotive is mounted in the smokebox, the valve 1 having a carrier portion 14 provided with a flange shaped to the curve of the smoke-box wall so as to be secured in an airtight manner thereto while surrounding an aperture in the wall, the valve-box cover 12 which makes a steamtight joint with the valve-box and gives access to the valve being so disposed that the aperture in the smoke-box wall can be closed by a plate 17 conforming to the general shape of the smoke-box, and the construction and arrangement being such that access can be obtained to the valve without disturbing the air-tight joint between the valve-casing and the smoke-box wall. In the construction shown in Figs. 1 (Prov.) and 2 (Prov.), the valve spindle 11 is operated by a handle 19 through a link 18, coaxial shafts 20, 15 and an arm 16. When the valve is to be inspected or removed the cover-plate 17 and the shafts 20, 15 are removed, the arm 16 being disconnected from the spindle. The cover 12 is then removed and the valve can be inspected or lifted out. The valve may be of the kind described in Specification 204,830, [Class 135, Valves &c.], and comprises two valves 6, 7 the lower valve 7 being lifted directly by the spindle 11, while the upper valve 6 is lifted by the lower valve when the latter has moved through the distance 9. In a modification the spindle 11 extends through the bottom of the valve-box and is operated from below. In order to allow a small amount of steam to pass for drifting the lower valve 7 may have a cylindrical skirt 30 slightly smaller than the valve seat 31, the valve-opening for small lifts thus being independent of the lift as long as the skirt is within the valve seat, and the drifting position is indicated to the driver by means in connection with the regulator handle 19. The handle is provided with a pin 38 working in a slot 39 in an arm 32 pivoted at 33 to a fixed bracket 34, the other end of the arm 32 having a pin- and-slot connection 36 with another bracket 37. The slot 39 has a hump 40 arranged so that when the valve is in the drifting position the pin 38 reaches this hump and rocks the arm 32 so that the driver can readily perceive where to set the handle for the drifting position.
Patent GB-647080-A (GB)
Title: Improvements in or relating to the preparation of readily soluble calcium compounds
IPC: A61K33/06
Filed: 1948-02-25
Abstract: A calcium compound which is stable and readily soluble in water is obtained by reacting calcium gluconate, calcium a -hydroxypropionate and the calcium salt of another hydroxy acid and/or a ketonic acid together in aqueous solution at boiling temperature.  The other calcium salt is preferably the levulinate. The salts may be produced in situ from the corresponding acids and calcium carbonate.  The solution may be evaporated to produce a dry product.ALSO:A calcium preparation which is stable, readily soluble in water and suitable for parenteral therapy is obtained by reacting calcium gluconate, calcium  -hydroxy-propionate and the calcium salt of another hydroxy acid and/or a ketonic acid together in aqueous solution at boiling temperature.  The other calcium salt is preferably the levulinate. The salts may be produced in situ from the corresponding acids and calcium carbonate.  The solution may be evaporated to produce a dry product.
Patent GB-859559-A (GB)
Title: Insulated electric cables
Inventor: BIRD DENNIS WALTER
IPC: H01B7/28
Filed: 1956-02-23
Abstract: 859,559. Cables. HENLEY'S TELEGRAPH WORKS CO. Ltd., W. T. Feb. 13, 1957 [Feb. 23, 1956], No. 5635/56. Class 36 A cable, for use in locations where it might be damaged by heat or contact with kerosene comprises a conductor surrounded by a layer of silicone rubber which swells when brought into contact with kerosene, and a helically-lapped covering of polyethylene terephthalate tape which is impervious to the kerosene and arranged so that it will be lightened by the swelling of the layer and prevent further ingress of the kerosene. Glass fibre braid may be interposed between the conductor and the silicone-rubber layer and an outer braiding of glass fibre or polyethylene terephthalate fibre may be applied over the tape. A coating of cellulose acetate or butyrate lacquer may be applied over the covering or outer layer.
Patent GB-899841-A (GB)
Title: Improvements in or relating to shoes and methods of manufacturing same
IPC: A43B3/14
Filed: 1961-02-16
Abstract: 899,841. Moccasins. LEWIS, B. Feb. 16, 1961, No. 5793/61. Class 17(2) A method for the manufacture of a moccasintype shoe whereby an outer sole 4 is attached to an upper 1, 3 by stitching 5 extending through the outer sole 4 and through a welt 6 formed from a lateral extension integral with both the base and upper. The upper consists of two pieces of leather closed along a central seam 2 with the vamp formed by an apron 3. Specifications 764,268 and 854,469 are referred to.
Patent GB-1078551-A (GB)
Title: Improved method for the separation of an alkyl-aluminium compound from a mixture in the liquid phase
IPC: C07F5/06
Filed: 1965-02-11
Abstract: An alkyl aluminium compound is separated from liquid mixtures containing the said compound, hydrocarbons and at least one solvent by passing the mixture through a solid macro-molecular organic substance having combined atoms of oxygen, sulphur or nitrogen with electronic densities sufficient to form a covalent bond with, but not capable of degrading, the alkyl-aluminium.  The mixture may be passed through the macro-molecular substance under an inert atmosphere with the aid of an inert solvent, e.g. benzene, heptane, until the hydrocarbons are washed out of the substance, the alkyl-aluminium may then be eluted with further solvent.  The macro-molecular substance may be a polyether, a polythio-ether, a polynitrile or a polynitrile derivative, a polylactam, a polyester, a polyamide, a polysulphone, a polyurethane, or a polyacetal.
Patent GB-1105213-A (GB)
Title: Knitting machine
IPC: D04B39/00
Filed: 1966-02-11
Abstract: Loop transfer is achieved on a hand operated flat bed machine by deflecting a needle above the adjacent needle in the same bed to enable the second needle to penetrate and take the loop from the deflected needle.  The cam carriage of the machine has provision for advancing the needle to be deflected and in the advanced position the needle is lifted from the base of its bed. Deflection is achieved by the needle engaging a slotted wheel or other projection mounted on the carriage such that when the needle is superimposed on the adjacent needle the latter is advanced by the needle cams to penetrate the depending loop of the deflected needle.  A projection extends from the cam carriage to retain the loop extended on the deflected needle to ensure penetration by the receiving needle. Alternatively a brush may be used to hold the loop extended on the needle.
Patent GB-645379-A (GB)
Title: Improvements in or relating to relay stations for wide-band signals
IPC: H04B7/155
Filed: 1948-02-27
Abstract: 645,379. Radio signalling. CINEMATELEVISION, Ltd., and MORGAN, M. Feb. 27, 1948, No. 6052. [Classes 40 (v) and 40 (vi)] A relay station for wide band signals comprises amplifying and frequency reducing stages 20, 21, 23, a grounded grid triode 26 with two cathode circuit inputs, one a lumped impedance circuit 25, the other a resonant coaxial line section 27 to the inner conductor of which the frequency of a local oscillator 28 is capacitively applied and a coaxial line anode section 30 resonant to the desired output frequency. The grid section 27 may be of length one quarter or three quarters of the wavelength of a frequency lying between the local oscillator and output frequencies and the anode section 30 a corresponding resonant length of the output frequency. The plunger 34 tunes the grid section so that it forms a short circuit at the local oscillator frequency. The reduced frequency may be of the order of one-tenth that of the relayed frequencies. The triode heater lead may consist of a hollow tube with central conductor return forming the central conductor of the coaxial line, connected to a heater transformer through a balanced to earth network, comprising inductances tuned by stray capacitance.
Patent GB-275284-A (GB)
Title: Improvements in the manufacture and production of organic compounds containing oxygen
IPC: C07C29/151
Filed: 1926-03-04
Abstract: 275,284. Johnson, J. Y.. (I. G. Farbenindustrie Akt.-Ges.). March 4, 1926. Alcohols and other oxygenated organic compounds.-In the manufacture of oxygenated organic compounds such as higher alcohols by the catalytic hydrogenation of carbon monoxide at elevated temperature and pressure, the carbon dioxide formed is removed continuously or periodically by absorption in solvents such as water or by binding it chemically under high pressure. The amount of carbon dioxide in the gases is not allowed to exceed 3 per cent. The reacting hydrogen may be replaced by alcohols or hydrocarbons. According to examples, (1) water gas is circulated at 200 atmospheres pressure over a mixture of equimolecular proportions of zinc oxide, chromium oxide and manganese oxide heated to a temperature of 475-500‹ C. ; the issuing gases are cooled to remove methanol, isobutyl alcohol, &c., and the carbon dioxide formed is eliminated by absorption in water without releasing the reaction pressure; (2) a mixture of carbon monoxide, hydrogen and nitrogen is charged with ethyl alcohol vapour and passed over the same catalyst as before, and under the same pressure and temperature conditions; the same products are condensed and the gases are freed from carbon dioxide by treatment with water, to which a little ammonia may be added, while still under pressure. Specifications 20488/13 and 229,714 are referred to.
Patent GB-696780-A (GB)
Title: Improvements in or relating to weighing apparatus, particularly for steel ingots
Inventor: CRAIG WILLIAM
IPC: G01G19/00
Filed: 1951-03-14
Abstract: 696,780. Weighing-apparatus. DAVY & UNITED ENGINEERING CO., Ltd. March 7, 1952 [March 14, 1951]. No. 6145/51. Class 143. In weighing-apparatus, particularly for weighing ingots on the tables approaching a rolling mill, a platform is raised by power-operated means from an inoperative - position to an operative position through a position in which.it lifts from a support the object to be weighed, the platform being connected to force-measuring mechanism. In one embodiment, the ingot, I, Fig. 1A. before weighing is supported on the rollers 31, and is lifted therefrom by the platform which comprises bars 32 carried on a grid the three elements of which project upwards in the spaces between four of the rollers 31. The platform is supported by pins 25 pivoted in brackets 24 attached to the middle of the two side members of the weighbeam 1. The platform also comprises depending, side members 26 the lower ends of which are pivoted to links 44 attached to pivots F in adjustable brackets 45. The two side members of the weighbeam 1 are pivoted at one end to adjustable pendant links 18 carried by universal joints 20 at opposite ends of a transverse rocker 21 pivoted at its centre to brackets 22 mounted on the table 23 of a weighing machine W. At the other end the weighbeam 1 is pivoted on pins 2, Fig. 1B, carried on lever arms 3. fixed to a horizontal shaft journaled in bearings 5. - The arms 3 are extended by arms 10 carrying counterpoise weights 9. Two further lever arms 17 extending from the same shaft are connected through adjustable links 14 to cranks 12 driven by a motor 11 through worm and spur reduction gearing. In the inoperative position, the arms 17 and weights 9 are in the broken line positions, the platform being lowered below the rollers 31, by movement of the cranks 12. In the weighing position shown, the end of the weighbeam 1 is raised by rotation of the cranks 12 to their dead-centre position, the pivots 2 now being fixed, the load being supported by the platform and transmitted to the links 18 for measurement by the machine W. In another embodiment, Figs. 7 and 8 (not shown), the weighbeam is moved, to raise the load, by a pressure-operated piston and the load is measured by operating a pressure meter through the centre knife-edge bearing of the weighbeam. The pressure meter may be a member incorporating one or more electrical strain gauge elements the resistance of which alters according to the load. The platform is constrained to move on a vertical axis by a parallelogram linkage.
Patent GB-139621-A (GB)
Title: Combined kettle and tea pot
IPC: A47J27/21
Filed: 1919-03-12
Abstract: 139,621. Joseph, N. March 12, 1919. Pots.-A tea-pot b is disposed within a kettle a, the hot water in the kettle being admitted to the tea in the pot through a valve c rotated by a rod d. The kettle and tea-pot are each provided with a cover and spout.
Patent GB-1243742-A (GB)
Title: Optical display watch
IPC: G04G9/12
Filed: 1969-02-05
Abstract: 1,243,742. Watches. HAMILTON WATCH CO. Feb. 5, 1969 [June 25, 1968], No. 6244/69. Heading G3T. A watch comprises a watch casing having a viewing window and means including at least one optical fibre for displaying timekeeping information in said window. Digital time indications are transmitted to the viewing window 18 by bundles 34 and 32 Fig. 3 (not shown) of optical fibres from markings on minute and hour wheels (26) and 28 disposed side by side. The bundles are tapered to provide magnification. In other embodiments (a) the minute and hour wheels are disposed concentrically (b) four bundles of optical fibres are provided for separate transmission of the tens and units digits (c) optical fibres transmit light from windows in the watch casing for illuminating the time indications on the minute and hour wheels (d) the time indications are luminescent and illuminated by a radio-active light emitting source (e) optical fibre bundles transmit coded information from the minute and hour wheels and terminate in bars at a viewing window, the bars being so arranged that when selective ones are illuminated, in accordance with the information on the minute and hour wheels, illuminated digits, indicating the time, appear in the viewing window.
Patent GB-727482-A (GB)
Title: Improvements in poly-valent metal ion chelating agents
Inventor: BERSWORTH FREDERICK CHARLES
IPC: C07D265/32
Filed: 1952-03-11
Abstract: The invention comprises (1) reaction of a polyhydroxy secondary aliphatic monoamine in alkaline solution with formaldehyde and sodium cyanide, removal of alkali metal ions by passage through a base exchange resin, concentration of the solution and separation therefrom of the resulting lactone (2-morpholone) of the formula <FORM:0727482/IV (b)/1> where R1 is hydrogen, alkyl, hydroxyalkyl or alkoxyalkyl and R11 is alkyl, hydroxyalkyl or alkoxyalkyl, at least one being hydroxyalkyl; (2) the crude mixture obtained as in (1) with or without purification, and (3) the following substituted 2-morpholones as new compounds: 4 - (21-hydroxypropyl) - 6 - methyl, 4 - methyl6 - methylol, 4 - (21 - hydroxy - 31 - methoxypropyl) - 6 - methoxymethyl, 4 - (21 : 31 - dihydroxypropyl) - 6 - methylol and 4 - (21-hydroxybutyl) - 6 - ethyl.  Examples are given of the preparation of these compounds by the above method, the salts of the corresponding hydroxyalkylamino-acetic acids being obtained as intermediates.  The products are chelating agents for polyvalent metal ions other than those of the alkaline earth metals.ALSO:Metal chelating agents comprising polyhydroxyalkylamino-acetic acids and their lactones are added to calcium sulphate titanium oxide pigments to remove iron and other polyvalent metal ions.
Patent GB-396145-A (GB)
Title: Improvements in or relating to wireless receiving apparatus of the superheterodyne type
IPC: H03D7/10
Filed: 1932-03-02
Abstract: 396,145. Valve circuits for wireless reception. SOWERBY, A. L. M., 85, Westbourne Grove, Paddington, and COSSOR, Ltd., A. C., 22, Highbury Grove, both in London. March 2, 1932, No. 6352. [Class 40 (v).] In a super-heterodyne receiver, the local oscillation generator has one of its electrodes conductively connected to an electrode interposed between the anode and signal input electrode of the valve for receiving the incoming signals. The incoming signals are received by a tuned circuit L1, C1, and applied to the control grid of a four-electrode valve V1, whose second or screen grid is connected to the anode of the triode oscillator V2. The intermediate frequency is taken from a transformer whose primary winding L2 is tuned by a condenser C2. The screen grid of the valve V1 is preferably connected to the tapping on the inductance L4 coupled to inductance L3 to adjust the amplitude of the local oscillation. Alternatively an impedance may be included in the conductive connection, Fig. 2 (not shown). The oscillator V2 may have a tuned grid circuit instead of the tuned anode circuit L4, C4, Fig. 3 (not shown).
Patent GB-102106-A (GB)
Title: Improvements in or relating to Spiral Separators.
Inventor: PARDEE FRANK
IPC: B07B13/11
Filed: 1916-05-03
Abstract: 102,106. Pardee, F. May 3, 1916. Density separators. - Relates to spiral separators for removing slate and " bone " from coal, and consists in providing the working surfaces of the plates B forming the runways with divergent creases c terminating in uncreased gravitative surfaces on the same plate. The creases, which may be arranged as shown or otherwise, may be straight or curved, and may be formed in the plate B itself or in superposed parts as shown; one or more of such superposed parts may also be perforated. The plates on which the creases are formed may be plane, warped, or composite surfaces, and modifications are described wherein the plates are bent to form special inclines or gutters at the lower or upper edges.
Patent GB-767471-A (GB)
Title: Pressure sifting
IPC: D21F1/66
Filed: 1955-03-03
Abstract: 767,471. Filters. SOC. ANON. DES CHAUX ET CIMENTS DE LAFARGE ET DU TEIL. March 3, 1955 [March 19, 1954], No. 6361/55. Class 46. [Also in Group XXX] Pulp is supplied under pressure at 1 to a box 5 having its upper surface constituted by a perforate screen or the like 6. Undersize particles and filtrate pass through the screen and along a channel 9 to a gutter 10 while oversize particles and liquid are conveyed by slotted scrapers 16 on an endless belt 15 up a casing 14 and discharged, after rinsing, at 21. The screening box 5 may be resiliently suspended at 8 and vibrated by an unbalanced shaft 7.
Patent GB-451051-A (GB)
Title: Improvements in and relating to a device for heating and drying stone, gravel and the like
IPC: E01C19/05
Filed: 1935-03-01
Abstract: 451,051. Drying stone &c. McGLASHAM, G. T., and CLARK, G. S., 48, Payne Street, Glasgow. March 1, 1935, No. 6481. [Class 34 (ii)] [See also Group XXX] A device for heating, drying, and elevating stone, gravel, and like material comprises an inclined heating chamber E, a conveyer D movable upwards through the chamber, two or more burners (not shown), adapted to heat the material on the conveyer, and ducts R through which the products of combustion are drawn by a fan T. The burners are situated in enlargements E<1> formed in the chamber and direct hot flames against the material. The conveyer is formed of plates J mounted on links K which are provided with rollers L running on rails M. The plates engage successively a roller U to rotate it, and the roller is provided with a cam V engaging one end of a lever W, whereby the other end under the action of a spring Y vibrates the conveyer to agitate the material. Preferably such agitating means is provided in positions to operate just before the material reaches the vicinity of each burner except the first one. The chamber E is anchored at one end and is mounted on wheels to permit of expansion. Projections may be provided on the conveyer plates to prevent the material from slipping backwards. The material is fed onto the conveyer from a hopper N provided with a reciprocating shoot N<1>, and is discharged from the conveyer to a hopper C leading to mixers A.