baber/WOPTO huggingface dataset:
Patent GB-1065198-A (GB)
Title: Improvements in or relating to grinding wheels
IPC: B24D7/06
Filed: 1965-01-15
Abstract: 1,065,198. Grinding. CARBORUNDUM CO. Jan. 15, 1965, No. 1821/65. Heading B3D. A grinding element 11 for a grinding wheel comprises an elongated bar of abrasive material, the grinding surface consisting of a bottom surface 12 having a portion 13 turned upwardly in sloping relation at least at one end and forming an outward continuation of the bottom surface. The grinding wheel consists of a disc 1 which is mounted on a shaft 2 and carries a plurality of the grinding elements at its periphery. A collar 7 is mounted on the disc and collects coolant from a pipe 9 for passage through orifices 10 to the grinding elements. Each element consists of a bar 11 of abrasive material, such as diamond, mounted in a holder 14 of plastic material, such as epoxy resin, from which extends a pair of screws for securing the holder to the disc. The holders may be mounted so that the bars of abrasive extend radially, or inclined to one side or the other of radial planes, of the disc. Each bar has a bottom surface 12 which may be in a plane normal to the axis of the wheel or somewhat inclined to the plane and a surface 13 which may be curved and is angularly disposed relative to the surface 12 to cut away the material of a slab, which may be stone or marble, above the plane of action of the surface 12. The elements may be moulded or secured by solder or cement in the holders and only the exposed portions of the elements may contain abrasive or the abrasive may extend into the holder which will wear down to expose the abrasive of the elements when the exposed portions of the elements have worn down. A plurality of elements may be mounted in a single holder. In a further embodiment, a pair of elements (21, Fig. 6) are mounted in a holder (19), the elements having slightly arcuate surfaces.
Patent GB-520665-A (GB)
Title: Means for stopping a loom or operating a weft replenishment device on substantial exhaustion of weft
IPC: D03D51/34
Filed: 1939-01-19
Abstract: 520,665. Stopping and replenishing weft in looms. VALENTIN, C., and TEXTILMASCHINENFABRIK SCHWENNINGEN GES. Jan. 19, 1939, No. 1941. Convention date, Jan. 31, 1938. [Class 142 (iii)] A feeler 2 with a wedge shaped tip 4 is acted upon by a compression and torsion spring 5 connected to an adjustable holder 8. At the beat-up the shuttle bobbin moves the feeler forwards to the right in a guide 1 on the breast beam. Normally the tip 4 becomes inserted in the coils of yarn on the bobbin and rotation of the feeler is prevented, but when the bobbin becomes almost exhausted rotation occurs and a projection 7 is positioned to engage a lever 11 and rotate a shaft 12 which causes loom stoppage or bobbin or shuttle exchange. A guide 13 limits the rotation of the feeler and ensures its back rotation on return to its initial position so that its wedge shaped tip is again in line with the yarn layers on the full bobbin. Electrical instead of mechanical transmission may be used. The Specification as open to inspection under Sect. 91 states that tongues, small plates, pins &c. may be used instead of the wedge shaped tip 4. This subject-matter does not appear in the Specification as accepted.
Patent GB-275862-A (GB)
Title: Improvements in or relating to the manufacture of high grade rosins
IPC: C09F1/00
Filed: 1927-01-22
Abstract: 275,862. Hercules Powder Co. Jan. 22, 1927. Addition to 253,082. Resins.-The process of converting low grade resins into high grade products as described in the parent Specification, in which low grade resins are dissolved in gasoline or the like and colouring bodies are removed by furfural, is modified by removing the colouring bodies by means of a phenol, a chlorhydrin, furfuralcohol, sulphur dioxide, or alkaline. Suitable agents are ordinary phenol, which may be aqueous, and ethylene or propylene chorhydrin. Examples of the use of each agent or class of agent are given, the details being similar to those described in the parent Specification with reference to furfural.
Patent GB-653382-A (GB)
Title: Production of chromium-nickel stainless steel
IPC: C21C5/00
Filed: 1947-01-22
Abstract: A process of producing stainless steel of low carbon content comprises melting in an electric arc furnace having carbonaceous electrodes a charge consisting principally of chrome ore, base steel scrap, stainless steel scrap, and nickel oxide to form a chromium rich and iron rich bath having a low carbon content and a supernatent slag thereon including chromium and nickel oxides and adding to the slag a silicon-containing reducing agent of low carbon content for recovering the metallic chromium and nickel from their oxides.  The reducing agent used is preferably crushed ferrosilicon relieved of fines.  In charging the furnace chrome ore may be disposed along the banks of the furnace with base steel scrap on the furnace bottom, the oxidizing material in the middle of the furnace and on the scrap and the stainless steel scrap over the chrome ore.  Further amounts of chrome ore may be added during the melting while maintaining the melted metal at a boil. The chromium and iron rich bath and the final stainless steel may contain less than 0.03 per cent of carbon. Additions of ferro-chromium, ferromanganese, electrolytic manganese and nickel, copper, tungsten, vanadium, aluminium, titanium, niobium, molybdenum or zirconium may be added after the reduction step. Specifications 437,186 and 649,023, are referred to.  The Specification as open to inspection under Sect. 91 comprises also the replacement of nickel oxide as oxidizing material wholly or in part by other oxidizing agents such as iron ore, iron oxide, rolls or mill scale.  This subject-matter does not appear in the Specification as accepted.
Patent GB-854265-A (GB)
Title: A method and apparatus for electrically positioning a movable element forming part of an analogue computer
IPC: G06K7/00
Filed: 1957-01-21
Abstract: 854,265. Control of motors. GULF RESEARCH & DEVELOPMENT CO. Jan. 21, 1957 [Jan. 24, 1956], No. 2063/57. Class 38 (3). [Also in Group VIII] Relates to apparatus for manually recording seismographic data upon a punched card, the data so recorded being read by a feeler moving over the card and providing a signal when a perforation is reached, the signal being applied to an analogue computer. The card is placed on a carriage 40 and accurately positioned thereon by means of indexing buttons 41, the carriage being held in a suitable position by pin 47. Handle 12 is then rotated to set indicators 28, 29, or 28a, 29a, according to the direction of rotation, at a value representing the magnitude of the quantity being recorded. A hole is punched in the card by momentary energization of solenoid 37, the card being held between punch 38 and die 39. The solenoid 37 is mounted on a carriage 35 having a non-rotatable nut 34 co-operating with lead-screw 10 which is driven by handle 12. The indicators are geared to this lead-screw. The pin 47 co-operates with escapement mechanism providing vertical displacement of the card. For example, a perforated plate may be placed below the carriage 40 and the pin 47 dropped into the perforation in succession, the pin being withdrawn manually by means of thumb release 46 so that the carriage may be moved to its next position. Thus, after a hole has been punched at a datum position on the card, the vertical displacement means may be advanced one step, and the leadscrew again adjusted to move the punch to a desired new horizontal location, whereupon a second hole is punched. The gear ratios for the pairs of indicators 28, 28a and 29, 29a, are independent so that different sets of data may be recorded on one card, or the same data with a different scale factor. The punched card may now be mounted on a carriage 70 which is coupled to a movable element forming part of a computer and which is driven by an electric motor 85. Closure of switch 87a energizes the motor 85 and causes relay 88 to energize coil 77, thereby depressing feeler 78. The member 70 is moved to the left until the feeler 78 engages a hole in the card, which is made of insulating material, to energize relay 83 which disconnects the motor and short-circuits its armature. The member 70 is now in a position corresponding to the magnitude of the recorded quantity. The contacts 87a open prior to the release of relay 83 by means not shown. In another arrangement, the card is mounted on a fixed base, the feeler and its associated solenoid being mounted on a carriage which is coupled to a movable element of the computer and which is driven by an electric motor through a rack-and-pinion, Fig. 4 (not shown). In a further embodiment the electric motor drive is communicated to the computer through a selsyn link, Fig. 5 (not shown).
Patent GB-228186-A (GB)
Title: Improvements in and relating to kilns for ceramic products
IPC: F27B9/26
Filed: 1925-01-23
Abstract: 228,186. Damide, J., and Damide, C. Jan. 24, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Tunnel kilns.-A tunnel kiln is formed with a drying-zone 3 between the entrance end of the tunnel and the main heating-zone 2, and with an air-heating jacket 8 around the cooling-zone. The air heated in the jacket is delivered to the drying-zone through ports 12. The air for combustion is heated in the space 4 beneath the trucks. Hearths.-The trucks for the goods are fitted with vertical bars 17 supporting end pillars 16 having projecting abutment portions 18. An ''insulating case" 22 is provided to separate the body of the truck from the sole 23, and the goods are supported on slabs 27 spaced from the sole by blocks 28. The trucks are sealed at the sides by projection from the walls overlapping adjacent projections from the trucks, and by sand troughs, and at the ends by a zig-zag joint 21 and a plate 20. The hearth structure is braced by end plates 29 connected by tie rods 30.
Patent GB-1496329-A (GB)
Title: Valves for mixing hot and cold fluids
IPC: G05D23/13
Filed: 1975-01-10
Abstract: 1496329 Mixing valves MEYNELL VALVES Ltd 10 Jan 1975 [16 Jan 1974] 02137/74 Heading F2V A mixing valve comprises a hollow body 1 having inlets 4, 5 for hot and cold fluids and an outlet (not shown) for the mixed fluids, and, within the body 1, a first valve means 6-11 which controls the flow of the two fluids to a mixing chamber 14, a temperature responsive device 22 within the chamber 14 which regulates the operation of the first valve means to control the temperature of the mixed fluids, a volume control chamber 15 having an outlet 17 which is progressively covered or uncovered on rotation of a sleeve 19 through an external control knob 21 so as to vary the rate of flow to the outlet, and a second valve means 26-29 which operates between a first position in which mixed fluid flows from the chamber 14 to the chamber 15, and a second position in which the chambers are isolated from each other. The first valve means comprises a fixed sleeve 6 which has ports 8, 9 communicating wilh the hot fluid inlet 4 and the cold fluid inlet 5 respectively. A piston 10 formed with axial passageways 11 slides within the sleeve 6 and is urged towards the illustrated position by a spring 12. The temperature responsive device 22 is supported between the piston 10 and a piston 26 of the second valve means so that any increase in temperature within the chamber 14 causes the device 22 to expand and move the piston 10 down against the action of the spring 12 to close the ports 8. The temperature setting of the device 22 may be adjusted by means of a screw 31 which bears against the piston 26 within a hollow spindle 29. The second valve means is opened and closed by means of a control knob 30. In the closed position a sealing ring 27 mounted on the piston 26 seals the passageway between the chambers 14, 15 and the piston 10 is forced against the spring 12 into the position in which the ports 8 are closed.
Patent GB-161339-A (GB)
Title: Improvements in and relating to bee hives
IPC: A01K47/00
Filed: 1920-01-23
Abstract: 161,339. Ballantyne, J. B. Jan. 23, 1920. Beehives.-A beehive is adapted to hold bar frames of any size by constructing it of superposable case-units having removable inner walls which may be plain or rabbeted as shown in Fig. 2. Each unit A has grooves or guides 3 with recesses 4 carrying pivoted or slidable stops 5, the distance between the grooves on one side being greater than that on the adjacent side. The inner walls B slide in the grooves 3 and are built up to support frames of different heights by making the rabbets overlap or not, as shown in Fig. 7. When the frame c is in place, a bee-way 8 is left, play of the frame being prevented by strips attached to the case-unit, and a double bee space 10 is provided underneath the frame. An alternative construction allows extra space and ventilation for wintering bees. The pivoted stops 5 are usually turned to block the grooves 3 and support the walls by engaging one of the corners 7 but are turned to clear the grooves when one wall unit is located partly in an upper and partly in a lower case as shown in Fig. 7. Ar alternative construction of the case-units avoids end play of the bar frames without using strips attached to the case-unit. The grooves 3 may be constructed sufficiently broad to be provided with a partition to form alternate guideways.
Patent GB-562128-A (GB)
Title: Plate filters
IPC: B01D25/26
Filed: 1942-02-18
Abstract: 562,128. Filters. KRACKLAUER, A. C., KRACKLAUER, W. J., and KRACKLAUER, V. W. (trading as SPARKLER MANUFACTURING CO.). Feb. 18, 1942, No. 2180. [Class 46.] A filter for varnishes, wines, syrups, oils &c. comprises a series of horizontal filter units 26, each consisting of an annular plate 27 with a perforated apron 33, a perforated hub 37 with a reduced extension 39, a perforated plate 41 and a filter sheet 47 of paper, fabric, wire cloth, asbestos &c., the parts being clamped between spiders 25, 48 in a casing 10 having a lid 11 secured as by clips 12 on hinged bolts 13. The plates 41 are supported against the pressure of the liquid by spacing blocks and by bosses in the plates 27. Liquid to be filtered, preferably mixed with a filter aid such as infusorial or fuller's earth, is supplied by a pump 24 through an inlet pipe 23 and the filtered liquid passes through the hubs 37 to an outlet pipe 20. The lid 11 may be provided with a set-cock 16 for releasing air at starting and a pressure gauge 15. In a modification, Fig. 3, the units are supported by a fitting 161 having an annular passage 164 leading from the space 166 below the lowermost filter sheet 147 to a separate outlet 167 so that the unfiltered residue remaining at the end of the run can be filtered through the sheet 147 by closing the normal outlet valve 122, opening the valve 168 and forcing air into the casing from the inlet pipe 123.
Patent GB-118555-A (GB)
Title: Improvements in Machines for Cutting Double Helical Teeth in Gear Wheels.
Inventor: SYKES WILLIAM EDWIN
IPC: B23F7/00
Filed: 1918-02-08
Abstract: 118,555. Sykes, W. E. Feb. 8, 1918. Gear-cutting. - In a gear-shaping machine of the type having two generating-cutters 11, 12 for cutting double helical teeth, the cutter-indexing worm-wheels 30, 31 and attached gear are both arranged on the side of the blank x farthest from the gear indexing wheel 55. In one form, as applied to the machine described in Specification 20367/13, the position of the cutter 12 is controlled through a spur-wheel 23 on a sleeve a attached to the helical guide b engaging with a helical nut on the inside of the sleeve f carrying the index-wheel 31, and the position of the cutter 11 is controlled by a spur-wheel 22 on the sleeve c attached to the shaft e, which passes through the sleeve a and guide b to the guide d, engaging with the nut on the inside of the sleeve g carrying the indexing-wheel 30. The apparatus may also be applied to machines such as are described in Specifications 8163/97, 1759/11, 10483/14, and 16769/14.
Patent GB-196394-A (GB)
Title: Improvements in perambulators or baby carriages
IPC: B62B7/14
Filed: 1922-01-26
Abstract: 196,394. Lister, M. Jan. 26, 1922. Helical springs.-To prevent rattling of a helical spring 8 within a cup 7 in which it is mounted, the cup is provided with a lining or cup 12 of rubber.
Patent GB-776453-A (GB)
Title: Improved method of and apparatus for cleaning articles
IPC: C23G5/04
Filed: 1954-01-26
Abstract: <PICT:0776453/III/1> A method of cleaning hollow articles comprises introducing solvent vapour into the interior of the article in a vapour chamber whilst simultaneously directing clean solvent liquid, resulting from the condensation of solvent vapour, on to the exterior of the article.  The clean solvent liquid directed on to the exterior of the article is suitably obtained by condensing solvent vapour in the upper part of the vapour chamber and allowing the condensate to fall in a shower or spray on to the article.  Alternatively, the vapour may be condensed by condensing means not forming part of the treating chamber, and the collected condensate then sprayed on to the article from one or more positions by means of a pump.  As shown, hollow articles are introduced into treating chamber 1 and inverted over vapour inlet tubes 8.  The chamber is then tightly closed by means of condenser 4.  Solvent in container 2 is then heated by means 3, whereby vapour passes through the tubes 8 into the interior of the articles.  Simultaneously vapour is condensed by the condenser 4 and falls from drip-points 7 on to the exterior of the articles. The cooling effect of this condensed liquid causes the vapour introduced into the interior of the articles to condense, so that there is a washing action on all surfaces of the articles.  The invention is of particular use for degreasing hollow articles with solvents such as trichlorethylene, carbon tetrachloride, chloroform and nitric acid.
Patent GB-524170-A (GB)
Title: Apparatus for destroying insects by means of steam
IPC: A01M13/00
Filed: 1939-01-23
Abstract: 524,170. Vaporizing kettles. THIEMANN, W. H. A; (Aktiebolaget Radius). Jan, 23, 1939, No. 2355. [Class 81 (i)] An electric vaporizer for destroying insects by means of steam or vapours comprises a container 1 for water etc., in which the handle 2 is located on the vertical wall of the container and the vapour outlet pipe 5 is situated close to the vertical wall and on the same side of the container as the handle so that the container may be held in an inclined position without spilling the water. The electric heating element 3 is preferably located near the side opposite that carrying the handle so as to be covered by water in the inclined position. An elbow 6 with flexible nozzle 7 is screwed to the outlet pipe 5. In a modification, the pipe 5 is bent so as to be inclined at an acute angle to the top of the container. The vessel may be charged by unscrewing, the elbow 6 or through a separate opening.
Patent GB-547338-A (GB)
Title: Improvements in or relating to sheet metal containers
IPC: B65D83/00
Filed: 1941-02-21
Abstract: 547,338. Cans &c. CROWN CORK & SEAL CO,, Inc. Feb. 21, 1941, No. 2412. Convention date, March 7, 1940. Addition to 529,994. [Class 66] : A sheet-metal container is provided with an integral or attached cup-shaped portion 18 extending into the neck 12 in contact with the inner wall thereof and formed with a severable bottom portion 13. For re-sealing a cork or plug stopper 20 or a' crown cork engaging the bead 33 is employed. The Specification as open to inspection under Sect. 91 describes the alternative construction shown in Fig. 5 (Cancelled) in which the cupshaped portion is spaced from the wall 12 of the neck and the bead 41 is afforded by a circumferential indentation 40 in the neck. This subject-matter does not appear in the Specification as accepted.
Patent GB-1451259-A (GB)
Title: Process for the aftertreatment of an azo pigment
IPC: C09B67/10
Filed: 1974-01-18
Abstract: 1451259 After treatment of an azo pigment HOECHST AG 18 Jan 1974 [19 Jan 1973] 02421/74 Heading C4P The azo pigment of the formula is subjected to an after-treatment by heating at 80-180 C. in an organic solvent which is water-immiscible or only miscible to a maximum of 20 g. per 100 g. of water. Suitable solvents include C 4-8  alcohols, halogenated aromatic compounds, aromatic nitro compounds, aromatic amines, aromatic ethers, esters of aromatic acids and ketones. Water may also be present and preferably a mixture of equal parts by weight of solvent and water is used. The solvent may subsequently be separated by steam distillation and reused. The process results in a pigment particularly suitable for use in lacquers, and it may also be used for dyeing plastics materials and special printing pastes. British Specification 1,008,166 is referred to.
Patent GB-371457-A (GB)
Title: Improvements in apparatus for the reproduction of sound from a cinematographic film
IPC: G03B31/02
Filed: 1931-01-24
Abstract: 371,457. Optical sound-reproducing apparatus. MARSHALL SOUND SYSTEM Ltd. and MARSHALL, C., 12, Low Pavement, Nottingham. Jan. 24, 1931, No. 2427. [Class 40 (ii).] Relates to apparatus for reproducing sound from a film record, in which light transmitted through the record is focused upon an optical slit interposed between the film and a photoelectric cell. According to the invention, the slit and the cell are contained within a casing over the outer surface of which the film is moved, the light beam from an external source entering the casing through an aperture therein over which the film passes. A plate 2a adjustably mounted on a support 2, carries a casing 9 in which are housed a photo-electric cell P and a tubular member 12 having a lens system 21 mounted at one end and an optical slit member 24 at the other. The slit plate 24, Fig. 3, is clamped against the flanged end 22 of the tube 12 by means of screws 26 passing through elongated slots 27. Vertical adjustment of the slit plate is provided for by means of a screw 28 having an eccentric shank. A washer 29 held in place by a screw cap 23 determines the effective length of the slit. The whole assembly carried by the tube 12 is made adjustable along the line between the cell P and an aperture 11 in the casing, by mounting the tube in a split sleeve 13. A casing 4 on an extension 3 of the plate 2a encloses a lamp 5 and a condensing lens which concentrates light on the record film F as it passes over the aperture 11. The film is drawn upwardly over the casing by a uniformly moving sprocket 16, after having passed over a roller 20. The roller is mounted on ball bearings and is provided with a fly-wheel for steadying the movement of the film.
Patent GB-245948-A (GB)
Title: Improvements in or in connection with head lamps for motor road vehicles and the like
IPC: F21V11/00
Filed: 1925-01-28
Abstract: 245,948. Rushton, H. C. Jan. 28, 1925. Gratings for preventing glare.- A glare-preventing means for vehicle lamps comprises a grating E, in the form of a continuous spiral or of concentric rings, which is moulded in the front glass or lens 13 so as to be entirely embodied therein or to have its front portion only embodied therein.
Patent GB-683663-A (GB)
Title: Acoustic warning devices
IPC: G10K1/063
Filed: 1951-02-02
Abstract: 683,663. Electric bells. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT. Feb. 2, 1951 [Feb. 8, 1950], No. 2600/51. Class 13. The striker 9 of a single stroke bell is connected to a ring 7 mounted on a core 1 so that when A.C. is passed through a coil 2 the bell gong is hit by the striker. A spring- loaded washer 13 mounted on the striker 9 co-operates with a stop on the casing to prevent the striker remaining in contact with the gong. The casing may be flame-proof and gas tight for use in mines. In a modification the striker is resiliently mounted and co-operates with a fixed stop, the mounting allowing the striker to pivot round the stop to hit the gong but preventing it from remaining in contact with the gong.