baber/WOPTO huggingface dataset:
Patent GB-706608-A (GB)
Title: Plastics mixing and extrusion machine
IPC: B29C48/67
Filed: 1952-07-23
Abstract: 706,608. Mixing appliances. DOW CHEMICAL CO. July 23, 1952 [July 26, 1951], No. 18683/52. Class 86 [Also in Group V] A machine for mixing, devolatilizing and extruding organic thermoplastic comprises a barrel containing a single elongated rotor which consists of a helically grooved mixing section interposed between and continuous with compressive feed and discharge screw sections, the barrel having a devolatilization port adjacent the mixing section of the rotor. The rotor 11, Fig. 2, comprising feed screw, mixing and discharge screw sections 21, 22 and 23 respectively, operates with a working clearance in a barrel 20, Fig. 3, which is surrounded by a heating jacket 19. The mixing section 22 which is formed with smoothly rounded helical grooves 28 of the same hand as the screws of the feed and discharge sections, has a neck 29 which forms a supplemental mixing zone and is joined to the feed screw section 21 by a tapered portion 26. The devolatilization port 17 is rectangular and it extends through a peripheral span of 45 degrees to 70 degrees on the surface of the rotor and has a length which is slightly less than that part of the mixing section 22 extending on the discharge side of the neck 29. The devolatilization port may be open to the atmosphere or may be connected with a vacuum pump to assist in removal of volatile matter. At its discharge end the rotor 11 may be provided with a helically grooved torpedo-shaped element 24 which mixes the thermoplastic and prevents surges and pulsations in the delivery rate of the machine. The torpedo-shaped element 24 has several necks 35 and joins the discharge screw section 23 at a tapered portion 30.
Patent GB-961682-A (GB)
Title: Device for mounting a flash lamp on a photographic camera
IPC: G03B15/04
Filed: 1961-05-24
Abstract: 961, 682. Photographic cameras combined with flash lamps. FRANKE & HEIDECKE G.m.b.H., [trading as ROLLEI-WERKE FRANKE & HEIDECKE]. May 24, 1961 [June 1, 1960], No. 18718/61. Heading G2A. [Also in Division H2] A flash lamp is mounted on a camera by means of a concentric flash-plug 3 secured to the flash lamp, not shown, and co-operating rotatably with a socket 5 on the camera. As shown, a latch lever 9 pivoted about a pin 14, engages resiliently behind a bead 4 on the plug when the latter is inserted, and prevents the plug from being extracted. The plug has a base-member 6 which can be inserted axially between two flanges 11, 12 of a shoe 10 in which the socket is formed. When the base is rotated through 90 degrees it engages behind the flanges and a projection 13 carried by the lever springs into a notch 7 in the base, so that the lamp is fixed against further rotational movement. Simultaneously, the latch takes up its position behind the bead 4, both operations being effected by a spring 15. A knob 16 projects from the side wall of the camera for the purpose of moving the lever 9 and its projection 13 to the release position.
Patent GB-243283-A (GB)
Title: Improvements in or relating to washing machines
IPC: D06F37/42
Filed: 1925-07-23
Abstract: 243,283. Dunsmore, A. r. July 23, 1925. Washing-machines with closed or enclosed rotary receptacles.-In a machine driven by a water motor, means to prevent the motor being operated whilst the casing door is open, and to prevent opening of the door whilst the motor is operating comprise a hand lever 1 pivoted to the casing 4 and connected by a link 9 with a lever 10 operating a valve 11 in the supply passage of the water to the motor. An arm 6 on the pivot 2 of the hand lever is swung into the path of a rib 7 on the closed sliding door of the casing when the valve is open as shown by full lines.
Patent GB-724500-A (GB)
Title: Improvements in or relating to combustion chambers for cyclone type combustion
IPC: F23C3/00
Filed: 1953-07-07
Abstract: 724,500. Cyclone furnaces. BLOMQUIST, U. O. July 7, 1953, No. 18851/53. Class 51 (1). A cyclone furnace chamber consists of a tubular member 1 having end walls, each end wall being provided with an outlet 2 for products of combustion. Fuel is supplied at 3 and secondary air at 4. In a modification the fuel and air inlets are provided near the end walls of the furnace chamber.
Patent GB-613644-A (GB)
Title: Improvements in and relating to electron multipliers
IPC: H01J43/20
Filed: 1946-06-24
Abstract: 613,644. Electron multipliers. M-O VALVE CO., Ltd., CUTTING, A. B., and WARREN, G. W. June 24, 1946, No. 18858. [Class 39 (i)] In an electron multiplier comprising a thermionic primary cathode, and two or more secondary cathodes in the form of hollow shells which form part of or are electrically connected to separate metal plates sealed through the envelope, the secondary cathodes are so arranged that the electron stream strikes alternate secondary cathodes on the inner surfaces and the other secondary cathodes on the outer surfaces of the hollow shells. As shown, secondary cathodes 11, 14 are concave inwards over their lower parts and secondary cathodes 12, 15 concave outwards over their upper parts. These electrodes and also accelerator grid 18 and anode 17 are supported by, and may be integral with, annular metal discs passing through the envelope. The indirectly-heated cathode 8 is surrounded by a control grid 9 and a first accelerator grid 10. In a modification, the primary cathode may be annular in shape and surrounds the control grid and accelerator grid so that the electron beam may strike the first secondary electrode on the outer surface of the hollow shell. According to the Provisional Specification the secondary cathode 12 forms a continuation of the first accelerator 10.
Patent GB-977957-A (GB)
Title: Mower
IPC: A01D34/24
Filed: 1962-05-16
Abstract: 977,957. Mowers. BOLINDER-MUNKTELL A.B. May 16, 1962 [May 18, 1961], No. 18904/62. Heading A1F. A tractor-mounted mower comprises a frame 1 having a yoke 7 on which is mounted a cutter bar 8 for pivoting in a vertical plane, the yoke being so arranged that the cutter bar may be pivoted into the position shown in Fig. 2. In this position the bar 14, which is movable to control the position of the cutter bar, protects the cutters together with an extension rod 18. The device is mounted on a tractor as described in Specification 976,580.
Patent GB-147010-A (GB)
Title: Improvements in and relating to means for cooling the cylinders of internal combustion engines
IPC: F02F1/10
Filed: 1920-07-06
Abstract: 147,010. Schmidt, W. Nov. 9, 1917, [Convention date]. Cylinders, construction of and cooling.-Cylinder heads C having valves which project beyond the surface of the cylinder barrel have their walls g, k near their junction with the barrel, which is pierced with longitudinal holes a for the cooling- water. The head is secured by bolts c which may pass through the water space, or, as shown in Fig. 5, outside of it. In the latter case the joint c is kept tight by set-screws m.
Patent GB-171135-A (GB)
Title: Apparatus for indicating at a location remote from their occurrence certain physicalconditions and variations thereof
IPC: G01R7/16
Filed: 1920-07-06
Abstract: 171,135. Vines, J. C., and Marsden, P. A. July 6, 1920. Tell-tale apparatus.-In a method of indicating variations of physical conditions at a distance, the movement of a member of the instrument affected by the conditions causes a corresponding movement of an earthed sliding contact 19 on a resistance 18, the ends of which are connected as in Specification 8784/91 to the ends of two coils in a differential galvanometer, the other ends being connected together and earthed through a battery 17. The constants of the galvanometer are arranged so that the pointer reads zero for a predetermined position of the sliding contact 19. Two forms of galvanometer are described, one an astatic moving-magnet instrument, and one with fixed magnet and moving coils. In both cases the coils are arranged with their planes at about 30 degrees to each other. The invention is shown applied to the indication of pressure, temperature, and inclination, and is applicable to instruments measuring wind and water velocities and other purposes.
Patent GB-760438-A (GB)
Title: Improvements in or relating to method of destroying catalyst residues
IPC: C08C2/04
Filed: 1954-06-29
Abstract: In the polymerization of unsaturated hydrocarbons employing alkali metal catalysts, particularly sodium, residual catalyst is destroyed by adding at least 2 mols. of aqueous acetic acid containing at least one mol. of acid and no more than 3 mols. of water per mol. of alkali metal.  The process is particularly applicable to the preparation of drying oils by the copolymerization of butadiene and styrene in the presence of finely-divided metallic sodium, an inert hydrocarbon diluent such as naphtha, mineral spirit, pentane, xylene, toluene, benzene and cyclohexane, and an ether such as diethyl ether, diisopropyl ether, dioxane, vinyl ethyl ether, vinyl isobutyl ether, anisole and phenetole.  A small amount of aliphatic alcohol, particularly isopropanol or tertiary butanol, may also be present. Part or all of the butadiene may be substituted with isoprene, piperylene, 2,3 - dimethyl - butadiene - 1,3, or 2 - methyl pentadiene-1,3 and, instead of styrene, p-methyl or p-ethyl styrene or a dimethyl styrene may be used.
Patent GB-220627-A (GB)
Title: Method of and apparatus for deodorizing, cooling and dehydrating fluid substances
IPC: A01J11/04
Filed: 1924-08-11
Abstract: 220,627. Te Aroha Dairy Co., Ltd. Aug. 14, 1923, [Convention date]. Fatty oils, purifying.-In removing volatile odours, water, &c. from edible oils, cream, &c. the heated liquid is admitted to a chamber evacuated by a water-jet condenser and provided with means for discharging the liquid without breaking the vacuum. The chamber consists of a spherical vessel 1 containing arms 22 rotated by a sleeve 18, and is evacuated by a jet of water passing from a nozzle 57 through a series of spaced cones 15 contained in a conical casing 13 and discharging through a pipe 34. The liquid is discharged from a container 1 through a chamber 45 evacuated by a " pulsator " 49 of the kind used in operating milking-machinery. When the vacuum in the chamber 45 equals that in the chamber 1, a gate valve 47 opens and admits liquid to the chamber 45. The vacuum in chamber 45 is now broken and the liquid is discharged through a valve 49<a> into a receiver 52. Liquid to be treated is supplied to the chamber 1 through a pipe 44 from a tank 35 containing a strainer 37 and fitted with a gate valve operated by a float 42 so as to maintain a definite level.
Patent GB-1204110-A (GB)
Title: Process for the simultaneous thermofixation of dispersion and reactive dyestuffs on blends of synthetic and cellulose fibres
IPC: D06P3/82
Filed: 1969-04-14
Abstract: 1,204,110. Dyeing blends of cellulosic and synthetic fibres. FARBWERKE HOECHST A.G. 14 April, 1969 [13 April, 1968], No. 19072/69. Heading D1B. Blends of cellulosic and synthetic fibrous materials are dyed simultaneously by the thermosol process in alkaline medium with a mixture of a disperse and a reactive dye, the reactive dye having at least one group of the formula I: in which R is hydrogen or an alkyl group, preferably methyl. Blends of cellulose with polyesters, polyamides and polyacrylonitrile are referred to. The reactive dye may be of the azo, anthraquinone or phthalocyanine type and disperse dye of the azo, anthraquinone or quinophthalone type. The fibre blends are padded, dried and then heated at 185-230‹C preferably for 30-60 seconds.
Patent GB-578754-A (GB)
Title: Improved panel for use in building construction
IPC: E04C2/296
Filed: 1943-11-16
Abstract: 578,754. Panels for structures. RAPP, G. M. Nov. 16, 1943, No. 19083. Convention date, Nov. 19, 1942. [Classes 20 (iv) and 87 (i)] A panel for use in building comprises a core or backing of cellular glass blocks 11 rigidly secured together, with adhesive material 15 and outer surfacing material 14 applied to one or both faces of the assemblage. Both the adhesive and surfacing material have a high modulus of elasticity, and the former has the properties of hardening without substantial expansion, imperviousness to water. and a co-efficient of expansion comparable with that of the cellular glass. The blocks may be secured together by an agent such as an asphalt-resin composition or a coldsetting urea formaldehyde adhesive. Alternatively, they may be clamped together by tie-rods passing through them. The adhesive applied to the faces of the assemblage may be of a plasticized chemically setting type, a thermoplastic resinous substance, or a bituminous substance such as asphalt. The surfacing material 14 may consist of asbestos cement boards, resin-bonded plywood, or other sheet material. Alternatively an asbestos-cement composition may be applied in a wet state and cured in situ. In a modification, the surface voids of the cellular glass blocks are first filled by a hard-setting plastic, such as gypsum, and surfacing sheets of synthetic resin or other plastic or vulcanized fibre are then secured by adhesive. In a further form, the adhesive itself forms the surfacing material, reinforcing material such as steel wire mesh being preferably incorporated in it. The face of the panel turned to the inside of the building may have a surfacing of hard white plaster, or of current applied over a thin plastic undercoating such as emulsified asphalt. Strips of thin vulcanized fibre or other suitable material may be secured by adhesive between the glass blocks along the longitudinal joints, and similar channelshaped outer strips may be secured along the longitudinal edges of the panel.
Patent GB-922989-A (GB)
Title: Apparatus for utilizing detonation waves
IPC: B05B7/00
Filed: 1960-05-30
Abstract: 922,989. Spraying apparatus. UNION CARBIDE CORPORATION. May 30, 1960 [June 6, 1959], No. 19101/60. Class 69 (3). A detonation gun for heating and spraying powder of the kind having an elongated barrel 10 supplied with powder at 12 and with fuel gas and oxidizing gas via valves 22 and 28 and a mixing chamber 24, is characterized in that the fuel and oxidizing gas paths from their valves to the barrel inlet 11 are of equal length. The valves are cam-operated by a motor 40 and when those valves are closed a valve 32 is opened to allow a purging gas to flow over them. A spark plug 16 is energized in synchronizism with the operation of the valves. In Fig. 2 a barrier 60 equalizes the flow paths from the valves 22, 28 to the barrel inlet. In Fig. 3 the three valves 22, 28 and 32 open into chambers 70, 72 and 74, and the chambers 70 and 72 feed into a mixing chamber 24 through passages 76 and 78 substantially identical in size and length. Chamber 74 connects with the other chambers via passages 80, 82 and 84.
Patent GB-1427411-A (GB)
Title: Magnetic tape recording deck drive system and cassette
IPC: G11B15/54
Filed: 1973-04-19
Abstract: 1427411 Automatic control of magnetic tape drive ARVIN INDUSTRIES Inc 19 April 1973 [24 April 1972(2)] 19139/73 Heading G3R A deck for use with a tape cassette having supply and take-up rolls includes motors for driving each roll and a capstan. The rotational speed of the capstan is sensed and regulated, and the power required by the capstan motor is also measured and used to control the energization of the roll motors so as to control the tape tension. As shown, a tape deck has toothed drive members 20, 21 for engaging tape rolls in a cassette. Guide rollers (54) in the cassette, Figs. 2, 3 (not shown), constrain a tape to engage transducers 45, 48 and form a partial loop around a capstan 35 driven by a D.C. motor 38 which also drives a tachogenerator 40 forming part of a speed regulating loop including a control unit 80. The current required by the motor 38 is also sensed by unit 80, and corresponding control signals are fed to motors 28, 30 driving members 20, 21 in order to ensure that the take-up roll is driven hard enough and the supply roll is retarded sufficiently to maintain the tape in frictional contact with the capstan 35 and minimise the current in motor 38 by equalizing the tape tension on each side of the capstan.
Patent GB-158013-A (GB)
Title: Improvements in magnetic cores for dynamo-electric machines, transformers, electro-magnets and the like
IPC: H02K1/02
Filed: 1919-08-02
Abstract: 158,013. Burgess, W. A. A. Aug. 2,1919. Transformers.-The cores of transformers and the like, with or without the windings or connections in situ, are formed by moulding a mixture of ferruginous material and a binder, such as the materials known under the registered Trade Marks " bakelite," " formite," and " redmanol." Chippings, filings, or powders of iron or its alloys are mixed with the binder to give a liquid or plastic product which sets on cooling or by drying, pressure, or chemical action. As alternative binders, other synthetic resins, cellulose acetate, or, according to the Provisional Specification, Portland cement, molasses or natural or synthetic gums may be used. The ferruginous material and binder may be extruded in a plastic form, additional ferruginous material then being kneaded in by rolls to give the final product, and the insulating and infusible properties of the product may be increased by allowing the mixture to cool and age, after which it is ground to powder for introduction into the moulds with heat and pressure. Alternatively, the ferruginous material may be added to the ingredients of the binder during its manufacture. The permeability may be reduced by the addition of wood, talcum, or mica powder, asbestos, or other inert filler, and it may be increased by the insertion of layers or pockets of iron powder optionally treated to give the particles a surface coating of oxide, dried-out varnish, or non-conducting salts, such treatment serving to reduce eddy currents. Layers of paper or insulating powder may also be used in the moulded part to reduce eddies. The supporting casing, feet, or the like, may be moulded integrally with the core, which may be reinforced bv embedded metal bars. Moulded cores so made render the embedded components impervious to water and protect them from corrosion and mechanical injury. In the transformer shown in Figs. 7 and 8, the windings M, N and leads V are mounted in a cylindrical mould K together with removable vertical spacers p<1>, horizontal bars r<1> which support the coils and permanent insulating coil-spacers Q, Q<1>. After the ferruginous mixture has been moulded the spacers p<1>, r<1> are withdrawn to leave ventilating ducts.
Patent GB-878973-A (GB)
Title: A safety system for pneumatic-tired aircraft wheel and brake assemblies
IPC: F16D55/00
Filed: 1960-05-31
Abstract: 878,973. Preventing tyre blow-out under heat; disc brakes. BENDIX CORPORATION. May 31, 1960 [June 22, 1959], No. 19172/60. Classes 103 (1) and 144 (2). To prevent blow-out of an aircraft wheel tyre 26 arising from overheating due to prolonged braking, a cylindrical heat-reflecting shield 24 is disposed between the disc-brake assembly 15 and the wheel rim 22, and a stem 30 having a tapered bore 40 is secured airtightly in an opening 28, 29 though the rim 22 in a position unprotected by the shield 24, the bore 40 being packed with an alloy 42 of 50% tin, 32% lead and 18% cadmium having a eutectic melting point of about 294‹ F. whereat it passes sharply into a liquid state and is blown out of the stem 30 to permit deflation of the tyre therethrough. Three such fuses may be distributed evenly around the rim to cover localized heating. As shown, the stem 30 has a countersunk head 32 seating on a corresponding surface 34 of the rim opening to provide for good heat transfer, though the stem may be of stainless steel with a nickel content to reduce its conductivity and provide for a time delay. The stem is secured in position by lock-nut 44.
Patent GB-675473-A (GB)
Title: Improvements in knitted article, method and machine for producing the same
IPC: D04B9/10
Filed: 1948-07-16
Abstract: 675,473. Knitting. INTERWOVEN STOCKING CO. July 16, 1948 [March 31, 1948], No. 19181/48. Class 74 (ii). Pure fabric formed on a superposed cylinder links-links machine having at least two feeding stations, has areas formed of outwardly-facing stitches of one thread which may be separated from areas of outwardly-facing stitches of another thread by areas formed of inwardlyfacing stitches of both threads, the suppressed threads floating behind the areas of outwardlyfacing stitches. A variety of coloured patterns are possible with solid colour areas separated by mixed colour or side-by-side. In the machine described, having two feeding stations, the lower cylinder cams are arranged to select needles to miss one station and knit at the second, or vice versa, according to the length of slider transfer butts 46, Fig. 8. Needles are transferred selectively between the cylinders by selector levers 60 and transfer cams 101, 56, 57 actuated as described in Specification 556,301. In one lower cylinder cam arrangement, a cam 102 is introduced to raise sliders 44 having, say, long butts 46, high enough to cause their butts 45 to miss cams 87, 88 of the first knitting station while medium and short butts cause their needles to knit. A cam 104 acting simultaneously with the cam 102 slightly lowers the long butted sliders to prevent interference with upper cylinder needles. The removal of a clearing cam 90 during pattern knitting permits the passage of short butts down the face of a cam 105 to by-pass knitting cams 91, 92 of the second station. Medium butts are raised by a cam 103 to engage the cams 91, 92 and knit. The cam 102 may be replaced by cams 108, 109, cam 109 bringing long butts within range of cam 108 to pass the butts 45 through a raceway 110 to miss the first station. Alternatively, the cam 102 may be combined with a cam 112, Fig. 9, the cam 102 raising, say, long and medium butts and the cam 112 depressing long butts to knit at the first station. A cam 113 depresses butts 46 to by-pass the second station; butts floated at the first station pass over the cam 113. Needles in the upper cylinder knit at both stations. Cams 102, 103, 104, 108, 109 and 112 are moved radially of the cylinders by cams on main or auxiliary pattern drums through levers. An auxiliary pattern drum 166, Fig. 16, controls the cam 108 and may control the cams 102, 104 and 112. The drum 166 is racked by a pair of pawls oscillated by a cam 180 on the main drive-shaft 179 rocking a lever 182. Racking is prevented by a pin 193, controlled by the main pattern drum, depressing the lever 182, and by a finger 201 also controlled by the main pattern drum raising one pawl while the remaining pawl eventually reaches a blank tooth in the rack. The drum 166 may have more than one cam track and an axially traversing follower. A sock produced by the machine may have a reverse sole and elastic reinforced top portion. Outwardly-facing stitches may be longer than the others. Specification 674,835 also is referred to.
Patent GB-498822-A (GB)
Title: Translucent containers, pots, boxes, moulded and stamped hollow forms and ornaments
IPC: C04B26/02
Filed: 1937-07-10
Abstract: Containers, pots, boxes, lamp-shades, lamp-pendants, and hollow ornamental pieces such as vases and statues are made of light-weight, translucent material containing only glass fibres united by translucent binders such as glue, cellulose derivatives and indiarubber.  The binders are applied in solution, and the articles may be made by moulding the wet mass, pressing thin sheets of the dried material, or by sticking or stitching together sheets or moulded pieces of the dried material.ALSO:Containers, pots, boxes, lamp-shades, lamp-pendants and hollow ornamental pieces such as vases and statues are made of lightweight, translucent material containing only glass fibres united by translucent binders, such as glue, cellulose derivatives and indiarubber.  The binders are applied in solution, and the articles may be made by moulding the wet mass, pressing thin sheets of the dried material, or by sticking or stitching together sheets or moulded pieces of the dried material.