baber/WOPTO huggingface dataset:
Patent GB-1500988-A (GB)
Title: Vibratory equipment for the production of moulded bodies by vibratory compaction
IPC: B28B7/20
Filed: 1975-02-20
Abstract: 1500988 Forming cavities in powder by vibrating KLOCKNER-HUMBOLDT-DEUTZ AG 20 Feb 1975 [20 Feb 1974] 7193/75 Heading B5A A carbon electrode 9 is formed on a vibrating table 1 within a mould box 2 and beneath a cover weight 3, a groove being formed by a trapezoidal, double-trapezoidal or T-shaped mould element 8. The element is riveted to the table 1 or is removable by bolts; one or more elements extend across the whole length of the table, or diagonally. The moulded electrode 9 is slid along the element 8 for removal.
Patent GB-269866-A (GB)
Title: Improvements relating to crushers
IPC: B02C2/06
Filed: 1927-03-15
Abstract: 269,866. Allis-Chalmers Manufacturing Co., (Assignees of Newhouse, R. C.). April 24, 1926, [Convention date]. Machinery, utilizing inertia to obtain movements in. - Vibration is eliminated in a group of two or more crushers or similar machines each of which is operated by means of an unbalanced revolving weight, by causing the actuating weights of the crushers always equal and opposed to a force tending to vibrate one crusher is always equal and opposed o a force tending to vibrate another crusher of the group. With gyratory crushers. the movable crusher-heads are caused to gyrate in predetermined phase relation to each other. The gyratory crusher shown in Fig. 1 comprises a stationary concave 15 mounted directly upon a supporting plate 31 and a gyratory head 16 carried by an upright hollow shaft 18 supported by a universal bearing 20 associated with a spider 19 mounted on the concave 15. The actuating shaft 22 is secured at its upper end by a universal joint 26 to the shaft 24 of a motor 25, and carries at its lower end the actuator 21 which is supported against lateral movement within the head 16 by means of ball bearings 29 and has one or more unbalanced weights 23 secured thereto eccentrically of the shaft 22. Figs. 2, and 3 show a group of four gyratory crushes 3 - - 6 carried by a base 31 and driven simultaneously by a motor 2 supported centrally upon a gear casing 30 carried by the spiders 19. A pinion 7 on the shaft of the motor meshes with oppositely-disposed wheels 8 which mesh with pinions 10 associated with the actuator shafts of the diagonallyopposed crushers 4, 5. Pinions 11 associated with the actuator shafts of the other set of diagonally-opposed crushers 3, 5 gear with idler wheels 9 which mesh with the wheels 8. The eccentric weights 12, 13 of the opposed sets of crushers 4, 6 and 3, 5 respectively are so positioned that the resultant centrifugal forces acting thereon will always be equal and opposed, so that the unbalanced forces tending to vibrate one machine will be equal and opposed to unbalanced forces tending to vibrate another machine. Instead of a. single motor 2 and transmission gearing, an independent motor may be provided for each machine.
Patent GB-334162-A (GB)
Title: Improvements in and relating to blow-pipe cutting apparatus
IPC: B23K7/00
Filed: 1930-03-05
Abstract: 334,162. Claude, M. March 5, 1929, [Convention date]. Perforating and dividing by fusion.-In a blowpipe cutting apparatus a frame supporting the blowpipe is mounted on a relatively heavy body having a surface of revolution and rolling on a supporting surface. The rod 3 of a parallelogram frame 2, 3, 7 carrying the blowpipe 1 and tracer roller 8, is freely slidable in the bore of a cylinder 4 which rolls on the support 5, on two rings 6 of leather of equal diameter to increase the adhesion of the cylinder to the support. The frame engages the cylinder by a shoe 9 of greasy leather so as to damp the relative movement of the cylinder and blowpipe frame as described in Specification 303,627. In another form a metal sheet 11 with two ribs 12 is rolled on or unrolled from the cylinder, the ribs engaging the recesses in the back of the succeeding layers so as to maintain the axis of the cylinder parallel to itself. The damping is effected by a piece of greasy leather 9 secured to the rod 7 of the frame and applied by the weight thereof against the unrolled part of the sheet.
Patent GB-296455-A (GB)
Title: Improvements in and connected with hydraulic and other fluid pressure jacks
IPC: B66F3/42
Filed: 1927-05-30
Abstract: 296,455. Miller, H. C., and Sumner, G. P. May 30, 1927. Jacks. -F l u i dpressure jacks of the kind in which the circulating channels are formed in the base of the jack and terminate in open ings on the exterior of the base which are closed as by screwed plugs, have all the distributing valves arranged in valve chambers in the outer ends of the circulating channels. As applied to a jack with a single pump, the pump barrel 10, the bore 11 of the release valve 9 and their connecting channels 12 are. arranged in the same vertical plane, the. distributing valves 15 being positioned in valve chambers 10<b> formed at the outer ends of the channels 12. which are closed by screwed plugs 10<c>, thus facilitating access to the valves. A horizontal channel 14 leads to the reservoir and a second horizontal channel 17. Fig. 3, leads to the ram cylinder 3, a lateral channel 22 being controlled by an adjustable spring-controlled safety valve 21. The operating handle 5 is connected to the pump plunger 71 and is also adapted to actuate the release valve 9. Specifications 280,754 and 290,688 are referred to.
Patent GB-721591-A (GB)
Title: Improvements relating to processes for the recovery of sulphur-values from waste products
Inventor: COATES WILLIAM HENRY
IPC: C01B17/52
Filed: 1951-03-28
Abstract: A gas containing a high concentration, e.g. above 10 per cent of sulphur dioxide and less than 2 per cent. sulphur trioxide is produced from pyrites and iron sulphate by burning pyrites with air in a fluidized bed under conditions which would normally result in combustion temperatures of 1,300-1,700 DEG C., and the iron sulphate is introduced, with or without additional cooling means, into the reaction in amounts such that the temperature of the resulting gases is maintained at 800-1,100 DEG C., preferably 900-1,000 DEG C.  The iron sulphate may be ferrous or ferric sulphate hydrated or not, or in association with other metal salts as mixtures or double sulphates, and is particularly ferrous sulphate heptahydrate or monohydrate obtained by partial dehydration of copperas.  The temperature used is such that in the equilibrium of SO3 and SO2, the formation of SO2 is favoured, so that decomposition of the iron sulphate yields mainly SO2 and O, the O forming SO2 with the pyrites. The resulting gases are rapidly cooled to 300-400 DEG C. by passage through a waste heat boiler and are subsequently cleaned, scrubbed and dried before passage to a sulphuric acid producing process. The sulphate may be added with the pyrites, or separately, or in the case of copperas may be melted and injected through atomizers. Sulphur and/or pulverized fuel or fuel oil may also be added.  The pyrites should be 30-200 mesh.  The solid product is mainly ferric oxide. Specification 529,335 is referred to.
Patent GB-988660-A (GB)
Title: Gill-bar drafting machine with adjustable-level drafting and feeding means
IPC: D01H5/02
Filed: 1964-02-21
Abstract: 988,660. Gill boxes. J. M. J. SAUVAGE. Feb. 21, 1964 [May, 24, 1963], No. 7263/64. Headings D1F and D1N. A gill box has its feed and drafting rollers mounted for vertical adjustment so as to vary the penetration of fibres in the faller teeth. One form of adjustment device has a horizontally adjustable wedge member b<SP>1</SP> arranged to co-operate with the support for a lower roller K. Another device has a lower roller G mounted for vertical movement under the influence of hydraulic pressure, movement being restricted by the action of a cam C co-operating with the top roller. Provision is made for horizontal adjustment of the roller G through its support T. An index E indicates the distance of the roller nip from the bottom of the faller pins.
Patent GB-672117-A (GB)
Title: Milling cutter
IPC: B23C5/04
Filed: 1948-03-09
Abstract: 672,117. Milling-cutters. FOURNIER, F. March 9, 1948, No. 7272/48. Class 83 (iii). A milling-cutter comprises a rotatable body having a series of helically-arranged cutting teeth 8 each provided with a single cutting edge 15 which is located at one side of the tooth and extends from the body to the tip of the tooth. The workpiece is machined in the direction of the arrow 5. The teeth each taper from the base to the tip and may consist of elements inserted in the body. The body may be conical or shaped in accordance with the surface to be milled.
Patent GB-420865-A (GB)
Title: Improvements relating to ice trays for refrigerators
IPC: F25C1/24
Filed: 1933-05-08
Abstract: 420,865. Ice-making. HALLOCK, R. L., 5, Woody Lane, Larchmont, New York, U.S.A. May 8, 1933, Nos. 7393 /34 and 7394 /34. Convention dates, May 28, 1932 and March 8, 1933. Divided out of 420,814. Drawings to Specification. [Class 29] The grid or partition of an ice-making tray for domestic refrigerators is formed with double walls, which may be flexed by hand to separate the ice blocks after the partition with the ice blocks adhering thereto has been removed from the tray. The space between the double walls may be filled with resilient material such as rubber, or the open tops of the partitions may be sealed by rubber strips. The base of the central partition may be flanged so that the ice cubes are positively lifted with the grid when it is released from the tray, and transverse partitions may be pivoted to rods carried by the longitudinal partitions. The construction of grid and release means described is that described in Specification 420,814, which is referred to.
Patent GB-1417249-A (GB)
Title: Convergence unit for colour television tubes
Inventor: BISSINGER N
IPC: H01J29/70
Filed: 1973-02-15
Abstract: 1417249 Convergence systems for cathode-ray tubes INTERNATIONAL STANDARD ELECTRIC CORP 15 Feb 1973 [21 Feb 1972] 7430/73 Heading H1D A convergence unit for a colour cathode-ray tube comprises a plurality of magnet systems 20, 30, 40 each consisting of a winding 201 on a former 29 which is rigidly connected to a supporting plate 10 and magnetic cores 23 which are slidable within the formers and in use are urged by springs 21 against the neck of the cathode-ray tube which passes through aperture 14. The core 23 can be in two parts held together by clamp 24 with an intervening permanent magnet 26. The spring 21 has cranked ends 211, 212 held in a hole 12 and a slot 11 in the plate 10. The spring 21 should preferably be arranged to direct a force along the axes of the cores 23.
Patent GB-547585-A (GB)
Title: Improvements in or relating to covers or hoods for the cockpits of aircraft, motor boats and the like
IPC: B64C1/14
Filed: 1941-06-13
Abstract: 547,585. Covers for aircraft cockpits and motor boats. FAIREY AVIATION CO., Ltd., CHAPLIN, H. E., and PETTS, A. G. June 13, 1941, No. 7503. [Classes 4 and 113 (i)] A detachable cover or hood for an aircraft cockpit or motor boat is formed in two portions hinged to the opposite sides of a main chassis and secured together and to the chassis by simultaneously releasable devices, the two portions being separable automatically from the chassis when they are swung outwardly. The chassis comprises an arch shaped member a, terminating in feet b; and forwardly extending members c connected to feed d of open U-shape. The hood is in two unequal parts and comprises transparent panels f secured to angle bars r, adapted to fit over the member a, and to tubular members g. The lower edges are a sliding fit in U-shaped strips e pivoted to the members c. The tubular members g have forked lower ends h, Fig. 3, engaging pins j spanning the open channel feet d, and have slots m embracing pins k. Sliding blocks n having L-shaped slots also engage the pins k, springs q normally holding the upper parts of the slots in engagement with the pins. The blocks are connected by cables 15 to pulleys 16, 17 on the two meeting edges of the hood and when the hood is closed, the pulley 17 is coupled to a pulley 13, fast to the pulley 16, and provided with a handle 14. The pulley 13 is connected by cables 11, 12 to a pin t and a catch x, the pin t being adapted to engage eyes u, v in the bars r and member a, and the catch x to secure the tubes g together. By pulling on the lever 14, the pin t and catch x are released and both blocks n are raised until the transverse parts of their slots register with the slots m, whereupon the two parts of the hood can be swung outwards and become detached from the feet d and strips e.
Patent GB-345794-A (GB)
Title: Improvements in tubular heat exchangers
IPC: F28D7/00
Filed: 1930-03-07
Abstract: 345,794. Tubular heat exchangers. BECK, E. F. A. D., 206, Chaussee d'Etterbeek, Brussels. March 7, 1930, No. 7558. Convention date, March 9, 1929. [Classes 64 (iii), 123 (ii) and 123 (iii).] In a tubular heat exchanger comprising cylindrical tubes fitted with metallic bodies which present a large heat transferring surface to the gas space between the tubes, the bodies divide the gas space into narrow, smooth-walled passages extending in straight lines from gas inlet to outlet. Heat exchanging bodies c of cast iron or other metal are fitted to the tubes a so as to surround each tube along its entire length, and shaped to form flat surfaces f. A fireproof body h, such as firebrick, may form part of the exchanger body; the configuration of the latter inhibits dust deposits on the tubes. A single metallic body may embrace a number of tubes and parts may be hollow to reduce weight. The bodies may be rectangular or star-shaped in cross section, and may be provided with ribs ; the ribs and the bodies may be inclined to the axes of the tubes.
Patent GB-806581-A (GB)
Title: Novel basic steroid derivatives and the manufacture thereof
IPC: C07J43/00
Filed: 1957-03-08
Abstract: The invention comprises 17-[piperidyl-(21)-methyl]-androstanediol-(3b ,17b ), its 11-lower alkyl derivatives, their acid addition and quaternary salts, 17 - [pyridyl - (21 - methyl]-androstene - (5) - diol - (3b ,17b ) and salts thereof, also 17 - [11 - acetyl - piperidyl - (21) - methyl] - 3b  - acetoxy - 17b  - hydroxy - androstane, together with a method for their preparation by condensing dehydro-isoandrosterone with pyridyl-(2)-methyl lithium, hydrogenating (preferably using an Adams' platinum oxide catalyst) and if desired alkylating, or quaternizing and then hydrogenating the resulting 17-[pyridyl-(21) - methyl] - androstene - (5) - diol - (3,17) and, if desired, converting the product into a salt.  The methylation and ethylation of piperidyl compounds is preferably effected by hydrogenation in the presence of formaldehyde, and by acetylation followed by reduction with lithium aluminium hydride, respectively.  Specified salt-forming acids are hydrohalic, sulphuric, phosphoric, lactic, tartaric, alkane sulphonic (e.g. ethane sulphonic), camphor sulphonic, mandelic, citric and maleic acids; quaternizing agents include lower alkyl halides, sulphates or p-toluene sulphonates.  In an example: dehydroisoandrosterone in 2-methylpyridine is added to ethereal pyridyl - (2) - methyl lithium (prepared from lithium, bromobenzene and 2-methylpyridine) giving on acidification 17-[pyridyl-(21)-methyl] androstene - (5) - diol - (3b ,17b ) hydrochloride, characterized as the methobromide, and the free base is hydrogenated in aqueous-methanolic HCl over Adams' catalyst to 17-[piperidyl-(21)-methyl] - androstanediol - (3b ,17b ), characterized as its hydrochloride, lactate hemihydrate, maleate, acid sulphate, ethane sulphonate and camphor sulphonate; acetylation of the piperidylmethyl diol in pyridine gives 17-[11-acetylpiperidyl - (21) - methyl] - 3b  - acetoxy - 17b  - hydroxy-androstane which is reduced with lithium aluminium hydride to 17-[11 - ethyl - piperidyl-(21) - methyl] - androstanediol - (3b ,17b ), whilst hydrogenation of the diol in acetic acid containing formaldehyde using a palladium-charcoal catalyst gives 17-[11-methyl-piperidyl-(21)-methyl] - androstanediol (3b ,17a ), characterized as its hydrochloride and methoidide.
Patent GB-1337888-A (GB)
Title: Europium-activated alkaline earth calcium aluminum fluoride phosphors
IPC: C09K11/77
Filed: 1972-02-18
Abstract: 1337888 Luminescent materials GENERAL ELECTRIC CO 18 Feb 1972 [25 March 1971] 7738/72 Heading C4S A phosphor has the formula where x is between 1-y and zero and y varies between a small but significant amount and 0À40. The phosphor is prepared by firing a mixture of the metal fluorides in N 3  and H 2 , reheating in HF and N 2  and maintaining Ba containing products at 7-800 C. and Sr containing products at 400-480 C. to produce a crystalline form. The metal fluorides are produced by coprecipitating Ba, Sr and Eu carbonates or oxalates, firing in air and HF to form oxides and fluorides successively then adding AlF 3  and CaF 2  either dry or in acetone. The fluorides may be precipitated by adding NH 4 F.HF to a solution of metal nitrates. The fluoride mixture may comprise BaAlF 5  : Eu or SrAlF 5  : Eu and CaF 2 . The phosphors are used in photocopying and lasers.
Patent GB-924223-A (GB)
Title: Getter for electron tubes
IPC: H01J7/18
Filed: 1960-03-04
Abstract: 924,223. High-frequency tubes. EITELMcCULLOUGH Inc. March 4, 1960 [May 29, 1959], No. 7763/60. Class 39 (1). In a klystron or other electron discharge tube the getter is a heating filament surrounded by a coil of getter wire and a coil of refractory metal wire the two coils having interleaved turns. The getter coil is partially evaporated by heating current in the filament and solidifies to form a coating 40, the evaporated getter material and coating 40 serving as active getter surfaces. Rejuvenation is accomplished by flashing the getter 40 as many times as desired to form fresh getter surfaces, but it is not completely evaporated. The heating element 38 is of thoriated tungsten the getter wire helix 40 is of Zr or Ti and the refractory metal helix 42 is of Ta or Mo. The getter is mounted on a metal cylinder one getter lead being connected to this cylinder and the other lead being attached to a terminal ring. Water jackets are provided around the drift tube sections.
Patent GB-712867-A (GB)
Title: Improvements in belt feed mechanisms for automatic firearms
IPC: F41A9/49
Filed: 1952-03-26
Abstract: 712,867. Automatic firearms; belt-fed mechanism. BREVETS AERO-MECANIQUES SOC. ANON. March 26, 1952 [March 27, 1951], No. 7788/52. Class 92(2) Relates to belt feed mechanisms for automatic firearms of the type in which power is supplied on the firing of each shot, to a transmission system comprising two rotating elements of which one is actuated by the power device and the other drives the belt, there being prestressed elastic means tending to take up a degree of angular play provided between these elements. According to the invention, this play corresponds to only a portion of the full movement necessary to advance a round, and the elastic means is so constructed that the play between the two elements is fully taken up after each round is advanced. The barrel 1 and casing 2 of the gun shown recoil together with respect to a fixed support 6, and the breech-block is actuated by gas piston means 5. The cartridge feed mechanism 9 is carried by the fixed support 6. When the gun recoils a roller 22, Fig. 5, on a lever 20 carried by the casing 2 rides up a ramp 23 on a plate 13<SP>0</SP> of the mechanism 9, and serves to lift a spring-controlled slide 16 carrying a pinion 19, see also Figs. 6 and 7. Pinion 19 meshes with pinions 27, 28, fitted with ratchets engaged by pawls 31, 31<SP>0</SP>, in such manner that only pinion 27 is rotated by the pinion 19 during recoil and 28 on the return movement. Pinion 27 is fixed to a sleeve 35 having a degree of lost motion a at a connection 37, 38, with a sleeve 36 carrying a pinion 39, and a stressed torsion spring 41 inside the tubes tends to oppose the rotation of the pinion 27 during recoil. The pinion 39 is geared as shown to a pinion 42 associated with a similar lost motion device 45, 46, with a clearance b, torsion spring 47, and tube 32, the latter carrying the star wheels 32a which engage the rounds of ammunition. The sum of the clearances a and b is less than that needed to advance a round to the breech of the firearm. Thus, on recoil, if the resistance to the feed motion is not overcome by the two springs the teeth of the two lost motion devices will engage and a positive drive to the star wheels 32a results. The links of the cartridge belt are of the disintegrating type and are stripped from the rounds as described in Specification 712,890.
Patent GB-547544-A (GB)
Title: A single wheel trailer
IPC: B62D63/06
Filed: 1941-06-23
Abstract: 547,544. Trailers. PICKARD, H. W., and WILD,V. June 23,1941, No. 7862. [Class 108 (ii)] In a single wheel trailer, the pivot C of a castor wheel is mounted in a bracket D connected to the converging side frame members E, which extend from end to end of the body. The front ends of the side frames E may be provided with adjustable brackets S to facilitate connection to motor vehicle frames of different heights. The wheel fork and mudguard may be made integral. The wheel axle may be mounted on arms pivoted to the fork and controlled by springs. The weight of the trailer may be transmitted to the fork through a frictional washer to check oscillation.
Patent GB-278591-A (GB)
Title: Improvements in protective devices for transformers
IPC: H02H5/04
Filed: 1927-03-22
Abstract: 278,591. Allmõnna Svenska Elektriska Aktiebolaget. Dec. 21, 1926, [Convention date]. Drawings to Specification. Transformers.-A protective arrangement for oil-immersed transformers comprises a heatsensitive device adapted to indicate temperature or to operate a circuit breaker, the device being located in a receptacle in restricted heat-conducting communication with the main oil tank and additionally heated by a conductor located in the receptacle and carrying the main current, or a current proportional to the main current, of the transformer.
Patent GB-899191-A (GB)
Title: Improvements in or relating to electric filter arrangements which employ hybrid devices
Inventor: JINMAN MICHAEL
IPC: H01P1/213
Filed: 1960-03-07
Abstract: 899,191. Band-separating filters. GENERAL ELECTRIC CO. Ltd. March 2, 1961 [March 7, 1960], No. 8010/60. Class 40(8). A channel-separating filter comprises two 3db directional couplers 1, 2 connected by two waveguide paths 11, 12 both of which contain filters 14, 15 for reflecting a selected wave-band, one of the paths being 180 degrees longer than the other, e.g. by virtue of a phase-shifter 16. The inequality in path length simplifies the construction of the filter insofar as the only requirement is that the two couplers should be identical. The input is applied at 4, the rejected frequency band is derived at 3 and signals at other frequencies at 10. Arm 9 is terminated by a resistance 13. The couplers are of the known type comprising quarter-wave connecting branches spaced at quarter-wave intervals. The phase-shifter may consist of a dielectric element 24 extending centrally between the broad walls 27, 28 of the waveguide and held in position by nylon screws 31. The whole filter may be constructed from coaxial lines. A number of such filters arranged in tandem may be used for separating a number of discrete frequency bands.