baber/WOPTO huggingface dataset:
Patent GB-301578-A (GB)
Title: Improvements in apparatus for consuming smoke and economising fuel in furnaces
IPC: F23L9/00
Filed: 1927-09-21
Abstract: 301,578. Hartley, J. W., and Cotton, R. Sept. 21, 1027. Firebridges; furnace fronts; air supply, heating.-Air is admitted to the furnace through radial openings 11 in an arch of recessed firebricks 10 surrounded bv an arched metal framc 8 forming the outer wall of a conduit in which the air is heated. Fig. 1 shows the apparatus arranged behind the firebridge 3 above an air box 4 having an air inlet valve 6 automatically controlled by the furnace door through a vacuum cylinder 17. Below the arch is arranged a hollow firebrick 14 having radial openings 15 and communicating with the air box 4. The metal frame 8 is made in sections 23 bolted together at 26 and to straps 27, 28, Fig. 6, each section having tongues 29, 30 for engaging within grooves 31, 32 in the sides of the firebricks. 10 so that each brick can be individually removed longitudinally. The openings 11 are formed by recesses in the sides of the bricks and the front ends of the bricks form the front wall of the heating conduit the rear wall being formed by a flange 9 on the metal arch 8. Fig. 12 shows the apparatus arranged at the furnace front, the arched metal framing 33<1> being provided with an air inlet door 34. The dead-plate 33 supports auxiliary firebars 35. The vacuum cylinder 17 is raised by a cam on closing the firing door. thus opening the valve 6 which is connected by a rod 20 and chain 19<1> to a piston within the cylinder 17. As the vacuum formed above the piston decreases the valve 6 is gradually closed.
Patent GB-893398-A (GB)
Title: Improved process for the manufacture of aryl phosphate esters
IPC: C07F9/12
Filed: 1960-07-15
Abstract: Triaryl phosphates are prepared by reacting in two stages phenol and/or one or more alkylsubstituted phenols with phosphorus oxychloride in a molecular ratio of at least 3 : 1 in the presence of catalytic amounts of magnesium chloride; in the first stage the reaction mixture being heated at between 100 DEG C. and 125 DEG C. for 1 to 3 hours; in the second stage the temperature being increased to 200 DEG C. at a rate of between 0.5 DEG C. and 5 DEG C. per minute; the total reaction time being between 4 and 6 hours and the reaction being operated under reduced pressure for the last 0.5 to 1.5 hours, neutralising the reaction mixture with a solid weakly basic inorganic salt and separating the resulting triaryl phosphate, e.g. by vacuum distillation.  A slight molar excess, e.g. up to 10%, of the phenolic reactant may be used.  The neutralisation may be effected in the hot, e.g. with Na2CO3, NaHCO3, (NH4)2CO3 or K2CO3. The amount of neutralising salt may be between 0.1% and 1% of the total weight of the reactants.  In an example, a mixture of phenol and the three cresols is used.
Patent GB-829617-A (GB)
Title: A cleansing device for tape-recording machines
Inventor: MEREDITH JOHN RAYMOND
IPC: G11B23/50
Filed: 1958-08-01
Abstract: 829,617. Magnetic recording and reproducing heads. METRO-SOUND MANUFACTURING CO. Ltd. Sept. 25, 1958 [Aug. 1, 1958], No. 24874/58. Drawings to Specification. Class 40 (2). A cleansing tape for removing record-tape powder from transducer heads comprises a flexible tape of suitable dimensions for passage in the path normally travelled by the record tape and carries a cleansing agent. The tape may be of a porous material which absorbs the cleansing agent, and may have a non-permeable backing to isolate the cleansing agent from the usual pressure pad associated with the transducer heads. Part of the tape may be untreated with the cleansing agent so as to act as a wiper. The cleaning tape may be used in conjunction with a spool having perforations for the introduction of cleansing liquids.
Patent GB-456931-A (GB)
Title: An improved pressure actuated signalling or controlling device
IPC: G01L13/04
Filed: 1935-09-07
Abstract: 456,931. Liquid-level pressure gauges. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BRIGG, J. E., and GIBSON, J. N., Hamilton House, Victoria Embankment, London. Sept. 7, 1935, No. 24933. [Class 106 (ii)] In U-tube gauges in which a signal is actuated by rise of liquid due to excessive pressure, an automatic valve is arranged to permit sufficient movement of the liquid to actuate the signal and then to close to prevent passage of gauge liquid into the pressure system. In the example shown, the gauge has three limbs 1 connected at the bottom by the tube 2. The tops of the tubes are secured to a plate 3. This forms the lowest of three plates 3, 5, 6 bolted together, the middle one 5 being of insulating material perforated in line with the tube 1. An extension 8 in line with the pipe 1 is secured to the upper plate 6 and at its other end is secured by a screwed collar 25 to the coned end of a chamber 11 adapted to be connected at the other end to the receptacle containing the pressure fluid to be measured. The part 8 contains a loosely fitting ball 28 and cylindrical member 29 normally resting on a ledge at the bottom of the part 8. The pressure fluid enters the device from a duct 15, the end of which is formed as a conical nipple which engages the end of a tubular valve 19 pressing it back against the influence of a spring 20. The nipple is secured in place by a screwed collar 17. When the nipple is disconnected the spring 20 pushes the valve into its bore so that holes under the head of the valve are covered. The gauge contains mercury and above the mercury oil. In use, if the mercury rises unduly the column engages a metal plate 34 let into the insulated disc 5 and makes an electric circuit between top and bottom plates causing an alarm or control to be operated. The cylinder 29 allows the oil to pass, but floats in mercury and is carried upwards pushing the ball valve 28 against its seating 26. The capacity of the chamber 11 is sufficient to hold all the mercury in the gauge should it, despite the valves, get by them.
Patent GB-455942-A (GB)
Title: Improvements in and relating to collapsible props for supporting the roofs of mine galleries and for similar purposes
IPC: E21D15/60
Filed: 1935-09-07
Abstract: 455,942. Pit - props. THOMPSON, J. W., Churchways, Earsdon, Shiremoor, Northumberland. Sept. 7, 1935, No. 24955. [Class 20 (ii)] A collapsable prop for the roof of mines and the like comprises a separate head and column having inclined or curved meeting surfaces p, f, and a.pivoted retaining and releasing lever r having projections r2, r<3> alternately adapted to hold and move the head by engaging the edge of the head or the recess m' thereof. The column is of I- section and preferably pivoted between cheeks b of a base, and given rounded edges d<3> to allow tilting, the pivot point c being situated at the side of the column which has highest inclined edge. The head is connected to the column by one or a pair of parallel motion links at each side and may have wedge members n interposed beneath the roof. When the prop is set, the column and lever r are secured by pins t', t.
Patent GB-1478090-A (GB)
Title: Roadway driving machines
IPC: E02F5/04
Filed: 1975-06-11
Abstract: 1478090 Underground roadway-driving machines F W PAURAT 11 June 1975 [26 June 1974] 24976/75 Heading E1F An underground roadway-driving machine comprises an endless tracked, self propelled chassis, a universally swingable, milling headsupporting jib 3 mounted at one end of the chassis, a loader located beneath the jib to collect up rock freed from the face of a heading being formed by the machine, a conveyer 7 extending from the loader to the rear of the machine, a staging 10 mounted on the chassis, a working platform 11 mounted on the staging, and a hydraulically actuated, hammer-carrying, articulated jib 12 mounted on the platform 11, which is movable forwardly along the staging by power means when the hammer is required to work on the face. Preferably the jib 12 articulates about horizontal axes 18, 18A and either the staging, the platform or the jib 12 may be swung about a vertical axis. Preferably the drives to the milling head 4 and the hammer 13 are mainly accommodated in the associated jibs 3, 12, which are adjusted by hydraulically actuated rams connected to a hydraulic circuit incorporating a pump connectable to drives for the endless tracks of the machine.
Patent GB-1015991-A (GB)
Title: Method of and apparatus for forming an embossed pattern in the tread band of a pneumatic tyre
IPC: B29D30/52
Filed: 1962-06-29
Abstract: 1,015,991. Moulding tyres. PIRELLI S.p.A. June 29, 1962 [Feb. 10, 1962], No. 25003/62. Heading B5A. In embossing the tread portion of a pneumatic tyre the tyre is partially enclosed between two annular sections of a mould and a flexible curing bag inserted into it by filling the bag with fluid, the peripheral section is then pressed by an intermediate annular-section of the mould, divided into sectors, and finally a positive pressure difference is created to expel the curing bag from the mould. Initially a curing bag 64 is enclosed by a cylinder 60, as in Fig. 2. The mould comprises a lower annular section 26, and an intermediate section 27 mounted on a plate 25, a plate 11 mounted on a stem 9 which penetrates the plate 25, and an upper annular section 32, through which penetrates the cylinder 60, mounted on a cover 34. Section 27 of the mould comprises a series of sectors mounted as in Fig. 2 so that when plate 25 is lowered, by cylinders 15, 16 and associated mechanism, the sectors close together by means of inclined plates 29, 30 sliding over each other. With the mould open (Fig. 2) a partly formed tyre 62 is placed on the plate 11 and mould section 26 and the cover 34 is rotated and lowered until section 32 of the mould engages with the tyre. Compressed fluid is admitted to cylinder 60 so that the curing bag is progressively inserted into the tyre. The cover 34 is further lowered forcing the plate 25 down closing the mould and causing the sectors to move centripetally. Finally the cover 34 engages with the upper edge of a container 2, enclosing the mould, and steam is admitted into container 2 through an opening 3 and additional heated fluid into the curing bag 64 to vulcanize the formed tyre (see Fig. 3). The curing bag is expelled from the tyre by reducing the pressure of the fluid within it below the pressure in container 2 to force the bag back into cylinder 60. As the cover 34 is raised mechanism comprising a cylinder 23, stem 22, and levers 20, 13 raise a cylinder 4, integral with plate 25, slightly, opening the mould sectors to release their grip on upper section 32. The cover 34 is raised as in Fig. 2, and finally plate 11 is raised lifting the tyre from the mould.
Patent GB-337853-A (GB)
Title: Improvements in and relating to loud speakers
IPC: H04R3/08
Filed: 1929-08-16
Abstract: 337,853. Brantom, H., Williams, H. G. Bawtree-, Bitten, E. A.., and Storry Ltd., H. A. Aug. 16, 1929. Magnetic instruments.- A moving-coil loud-speaker in which the diaphragm is large compared with the cross-sectional area of the moving coil, has a secondary winding c coupled inductively to the moving coil b and shunted by a variable resistance d, the number of turns of the secondary winding c being such that by adjusting the variable resistance d a control of the volume of sound produced by the loud speaker is obtained without distortion. The coils c, b, may be wound on the same former e and the constant magnetic field is supplied by the field coil a. The coil c may have ten to thirty turns of wire and the resistance d may be variable up to 1000 ohms. Specification 263,172 is referred to.
Patent GB-1213944-A (GB)
Title: Antivibration pads
Inventor: BEVAN RONALD
IPC: F16F9/12
Filed: 1969-05-16
Abstract: 1,213,944. Vibration damping. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 May, 1970 [16 May, 1969], No. 25115/69. Heading B3B. [Also in Division F2]  An antivibration pad for interposing between a machine, such as a metal turning lathe, and its supporting substrate comprises a pair of thin metal sheets joined together around their edges so as to form a flat plate totally enclosing a chamber which is filled with liquid. The area of the machine is not smaller than that of the pad and is preferably approximately equal to that of the pad.
Patent GB-462538-A (GB)
Title: Improvements in or relating to fishing gear
IPC: A01K73/02
Filed: 1935-09-10
Abstract: 462,538. Trawling- gear. SHUTTLEWORTH, W. E. Sept. 10, 1935, No. 25124. [Class 48] A trawl - net having a headline in advance of the footrope has a towing warp passing through the roof of the net to a trolley at the base adjacent to the footrope, and the other boards or spreaders are displaceable relatively to the towing warp and are disposed out of the direct connection between the warp and the net. The main warp 24 is connected to a trolly at the mouth 15 of the net by cables 23, the trolly comprising two rigidly connected transverse bars 21 carrying rollers 22. The spreaders 18 are connected to separate warps 29 led over booms 13 on the ship and maintain the opening between side curtains 19 which are connected by netting 20 secured to the headline 17. The main warp passes through a ring 25 on the headline or it passes through the net behind the headline and the latter is maintained at any desired height by a separate warp connected to the main warp some distance in front of the net. The spreaders 18 may be connected to branch warps connected to a point on the main warp. The spreaders are connected to the warps by crows' feet and are weighted and provided with rollers at their lower edges.
Patent GB-1138730-A (GB)
Title: Preparation of an acid component as an intermediate product for effervescent compositions
IPC: A23L2/40
Filed: 1966-06-06
Abstract: 1,138,730. Sodium citrate compositions. DOCTOR ANDREU S.A. 6 June, 1966 [5 July, 1965], No. 25151/66. Heading C2C. [Also in Division A5] Powdered citric acid and powdered sodium bicarbonate are reacted by heating in the presence of from 2-15% by weight of water, and the product dried to form an intermediate product which is used in the manufacture of stable effervescent compositions by admixture with an alkaline component and other ingredients. The powdered sodium bicarbonate is used in a proportion of from 30 to 80% of the stoichiometric proportion for the complete salification of the citric acid, and the product is a mixture of mono-, di-, and tri-sodium salts of 1,2,3-isopropanol tricarboxylic acid with from 70-20% free acidity.
Patent GB-464206-A (GB)
Title: Improvements in or relating to the manufacture of pistons
IPC: B22D15/02
Filed: 1935-09-10
Abstract: 464,206. Pistons. SPECIALLOID, Ltd., and GRAHAM, E. B. Sept. 10, 1935, No. 25170. [Class 122 (i)] [Also in Group XXII] A pi comb &c., has strengthening ribs 1 tending radially across the in and webs 10, 11 extending from the head to the gudgeon-pin bosses 9. The piston has recesses 8 adjacent the gudgeon pin and grooves 3, 5, Fig. 1, with perforations 4, 7, for scraper rings. Specification 399,801 is referred to.
Patent GB-369519-A (GB)
Title: A lace for boots, shoes, corsets and the like
IPC: A43C9/00
Filed: 1931-09-08
Abstract: 369,519. Laces. VÍLKEL, E., 16, Mittersteig, Vienna. Sept. 8, 1931, No. 25181. Convention date, Sept. 24, 1930. [Class 43.] In laces for boots, corsets, and the like wherein a textile covering 3 is wrapped or woven round a string or cord 1, a length of very thin wire 2 is wound directly round -.he string prior to the application of the textile covering. The lace may be round, oval, or flat in cross section.
Patent GB-778179-A (GB)
Title: Improvements relating to the generation of image signals for colour television
Inventor: JAMES IVANHOE JOHN PENFOUND
IPC: H04N7/01
Filed: 1952-10-09
Abstract: 778,179. Television. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Sept. 29, 1953 [Oct. 9, 1952], No. 25274/52. Class 40 (3). Simultaneous type colour television signals are produced from sequentially generated signals by storing the separate colour images of the latter signals in storage devices from which the simultaneous type signals are derived. In the arrangement shown in Fig. 1, the sequential type signals, which are produced by a singletube camera 1 and co-operating tri-colour filter disc 2 operating at 150 field/sec. scanning rate, are supplied to a storage device comprising a picture reproducing tube 4, the image produced by which is " viewed " by three picture signal generating tubes 5, 6, 7, which operate at a field scanning rate of 50 fields/sec. Tube 5, which " views " tube 4 continuously, supplies conventional monochrome signals (suitable for reproduction in black/white receivers) to output channel 10 and tubes 6 and 7, which are arranged to respond only to the Blue and Red representative (monochromatic) images respectively supply Blue and Red component signals to output channels 11 and 12 respectively. These signals may then be employed to produce a modulating signal (for modulating a transmitted carrier wave) of the type comprising a brightness signal EY and two colour-difference signals EB-EY and ER-EY as quadrature phase modulations of a sub-carrier wave. The sequentially produced signals are monitored by means of a picture reproducing device 20 with which a rotating colour filter 21 co-operates and the whole system is synchronized by means of synchronizing signals from source 3. In a modification of the arrangement of Fig. 1, three separate picture reproducing tubes are employed instead of the single tube 4, each of which is individually " viewed " by one of the picture tubes 5, 6 and 7 and the signals from camera 1 are supplied directly to the tube " viewed " by picture tube 5 and via gate circuits which are opened during the blue and red fields to the tubes viewed by picture tubes 6 and 7 respectively (Fig. 2, not shown). Specifications 536,089, [Group XL], 665,096, 742,789, [both in Group XL (a)], 778,182 and 778,183 are referred to.
Patent GB-720441-A (GB)
Title: Aromatization of polychlorocyclohexanes
IPC: B01J31/04
Filed: 1952-10-09
Abstract: Polychlorocyclohexanes are dehydrochlorinated to the corresponding aromatic compounds by heating to 180-350 DEG  C., preferably 220-350 DEG  C. in the presence of an organic salt of iron, cobalt or nickel. The preferred process is the dehydrochlorination of benzene hexachloride to trichlorobenzene. Suitable catalysts are nickel, iron and cobalt acetates, ferrous phthalate, butyrate, succinate, palmitate, adipate, oleate and 3-chlorophthalate, cobaltous benzoate, propionate and stearate and nickelous benzoate, succinate, propionate, p-nitrobenzoate and maleate.  The amount of catalyst is preferably from 0.01 per cent to 8 per cent of the weight of polychlorocyclohexane originally present.  In an example, benzene hexachloride is dehydrochlorinated by heating in the presence of nickelous acetate to give trichlorobenzene containing 1 : 2 : 4 - trichlorobenzene and 1 : 2 : 3 - trichlorobenzene; if monochlorobenzene hexachloride and dichlorobenzene hexachloride are similarly treated, tetrachlorobenzene and pentachlorobenzene are obtained respectively.
Patent GB-1481597-A (GB)
Title: Dice game apparatus
IPC: A63F9/00
Filed: 1976-06-18
Abstract: 1481597 Dice game MARVIN GLASS & ASSOCIATES 18 June 1976 [20 Oct 1975] 25360/76 Heading A6H A game comprises an elongated base, a plurality of pivoted flippers along each side, such that when opposite flippers are pivoted so that their numbered heads are central of the base, one head covers the other, and a dice receiving receptacle 18 at one end of the base. The flippers can be re-arranged or detachable mounting rods 30. Two or three dice are used. Pegs 40 in holes 38 record the score.
Patent GB-381311-A (GB)
Title: Improvements in ships binnacles
IPC: G01C17/00
Filed: 1931-09-10
Abstract: 381,311. Mariners' compasses. HEATH, G. A., Scientific Instrument Works, New Eltham, and STANLEY & CO., Ltd., W. F., 286, High Holborn, both in London. Sept. 10, 1931, No. 25379. [Class 97 (ii).] In a ship's binnacle, a case housing optical parts for obtaining a vertical image of the compass card is rotatably mounted so that an image of the lubber line and adjacent portion of the card may be viewed in any desired horizontal direction. The lens a, mirror b, and adjustable mirror c, are supported in a case d having a ring e which is detachably fixed to but rotatable on a ring f connected by knuckle joints m to struts g clamped at k to the binnacle rim h. The axis of rotation of the case d passes through a point near the lubber line. When the compass is artificially illuminated a hood is provided to enclose the struts g and screen all light except that passing through the optical system.
Patent GB-172398-A (GB)
Title: An improved rubber material and process of manufacture thereof
IPC: C08L21/00
Filed: 1920-09-03
Abstract: 172,398. Ostberg, A. J., and Kenny, A. Sept. 3, 1920. Spongy india-rubber.-A spongy rubber composition is made by vulcanizing a mixture of rubber, sulphur, zinc white, and carbonate of magnesia, to which has been added a volatile oil or spirit such as benzine. A mixture of new and crumb rubber, or ground crumb alone may be used. According to an example, a mixture consisting of 15lb. of Para rubber, 15lb. of reclaimed rubber, 13lb. of sulphur, 9lb. of zinc white, and 1¢lb. of carbonate of magnesia, and a volatile oil, preferably 10lb. to every 45lb. of the rubber composition is vulcanized for about one hour at a steam pressure of 40lb. per sq. in.
Patent GB-646270-A (GB)
Title: Improvements in and relating to gramophone apparatus
IPC: G11B33/02
Filed: 1948-09-30
Abstract: 646,270. Gramophone cabinets. DIAMOND, J., WALKER, S. W., EAST, G., DIAMOND, T., and BUTCHER, Ltd. Sept. 30, 1948, No. 25478. [Class 40 (ii)] In gramophone apparatus of the type in which the lid b is swingingly and slidably associated with the board c supporting the motor e and pick-up f, the loud-speaker h is mounted on the inside of the lid, preferably in a central position. Specification 488,067, [Group XIV], is referred to.
Patent GB-915192-A (GB)
Title: Process for refining pig iron in a non-circular rotating refining vessel
IPC: C21C5/32
Filed: 1960-07-22
Abstract: A process of refining steel by blowing pig iron with oxygen in a non-circular, rotating, refining vessel having two orthogonal axes of symmetry of length ratio 1.2 : 1 to 1.5 : 1 comprises supplying oxygen during dephosphorization at a rate of at least 4 standard cubic metres per minute per metric ton of pig iron and rotating the vessel at 14-22 r.p.m.  The vessel may be of elliptical cross-section.  During decarburization oxygen may be supplied at 4-10 standard cubic metres per minute per metric ton of pig iron and the vessel may be rotated at 18-34 r.p.m.  It is stated that the rotational speed has a considerable effect on the rate of dephosphorization, e.g. with an axis ratio of 1.2 : 1, the rate of dephosphorization at 19 r.p.m. may be three times that at 16 or 22 r.p.m.