baber/WOPTO huggingface dataset:
Patent GB-127255-A (GB)
Title: Improved Process and Apparatus for the Electrolytic Decomposition of Chlorides.
Inventor: CATALDI BENIAMINO
IPC: C25B9/14
Filed: 1919-05-20
Abstract: 127,255. Cataldi, B. May 20, 1918, [Convention date]. Liquid-electrode apparatus; diaphragms; electrolytes, circulating; alkalis and chlorine, obtaining.-Separate mercury cathodes 6 are in contact with a chloride solution through very porous diaphragms 5<a> and are washed seriatim by a current of water, the action of which is hastened by fragments of conductive carbon or graphite, optionally provided with metal contact-pieces. As shown, the diaphragms 5a form the bottoms of vessels 5 depending into a tank 1. They may consist of one or more layers of asbestos cloth, with or without an intermediate layer of asbestos cardboard, and may be impregnated with a substance such as sodium silicate preventing passage of mercury. Cross-pieces or lattice-work support the diaphragms if necessary. To prevent flow of alkali into the main tank 1, a ring 5<d> of iron or other metal wetted by mercury is fitted into the wall of each cathode vessel 5 at the level of the mercury surface. Alternatively, the vessel 5 may contain an inner sheet-iron lining just reaching down to the level of the mercury, or the vessel may be of iron coated with ebonite, except at the surface of the mercury in these cases, the lining or the vessel forms a conductor. The carbon fragments 10 may be arelamp or battery electrodes, around which loops of iron wire may be twisted at intervals. Anodes 3 are placed as shown, so that chlorine does not impinge on the diaphragms.
Patent GB-293520-A (GB)
Title: Improvements in devices for shoring or supporting the roofs of mines
Inventor: CUTHBERTSON ROBERT W.
IPC: E21D17/00
Filed: 1927-05-12
Abstract: 293,520. Cuthbertson, R. W. May 12, 1927. Mine props. - The roofs of mines are supported by T- or channel-section bars reinforced by a wire rope or wire ropes anchored at the ends of the bars. The bars are supported at the ends by wooden props or adjustable tubular props E, as described in Specification 296,290. Figs. 4 and 6 show a T-section bar reinforced by two wire ropes B which pass through tapered holes c in blocks C disposed at the ends of the bar, the wires being secured in the holes by fillings of white metal or other suitable alloy. Fig 9 shows a channel-section bar A<1> similarly reinforced by a single wire rope. The wire reinforcement, when double, may be in the form of a single rope passing by a loop through a block D, Fig, 15, at one end of the bar and secured by its two ends to a block C at the other end of the bar.
Patent GB-552397-A (GB)
Title: Improvements in or relating to riveting
IPC: B21J15/30
Filed: 1941-10-02
Abstract: 552,397. Riveting. HOLMAN, H. E. Oct. 2, 1941, No. 12718. [Classes 83 (ii) and 83 (iv)] In connecting two members by riveting, either metallic or non-metallic, holes are formed in one of the members only and cup-shaped rivets are passed through these and attached to the other members as by spot welding or cementing, the holes being sufficiently large to permit tolerance during this operation. The parts are then accurately positioned in a jig and the rivets are closed. As applied to an electrode support for a thermionic valve the parts consisting of a flanged metal tool and a mica disc in which the holes are punched or drilled are assembled in jig comprising a counterbored block 5 and mandrel 8. A slot 7 in the block permits the attachment of the rivets one by one by spot welding electrodes 6, and the jig finally serves for closing the rivets by a tool 9.
Patent GB-1333535-A (GB)
Title: Prosthetic heart valve having a pair of support rings of dissimilar material
IPC: A61F2/24
Filed: 1972-03-17
Abstract: 1333535 Valves BAXTER LABORATORIES Inc 17 March 1972 [7 May 1971] 12745/72 Heading F2V [Also in Division A5] A prosthetic heart valve comprises an inner ring 10 of graphite coated with isotropic, pyrolytic graphite, a ceramic formulation or P.T.F.E., having an annular protrusion 12 gripped by fingers of an outer ring 20 of malleable metal, which as shown also support the P.T.F.E.-or carbon-coated titanium cage 14 containing a hollow ball 16 of graphite with a pyrolytic carbon coating, or of ceramic or plastics material, and a fabric tube 24 clamped between the rings and folded on the outside to form a suturing site. The ball and cage closure may be replaced by other types of closure, e.g. a pivoting or reciprocating disc or a poppet valve connected to a projecting neck and slidably held in a retention ring, details of which are not disclosed.
Patent GB-311274-A (GB)
Title: Improvements in impulse senders of the finger disc type
IPC: H04M1/31
Filed: 1929-04-24
Abstract: 311,274. Telefonaktiebolaget L. M. Ericsson. May 8, 1928, [Convention date]. Actuated by speed regulators.-In instruments of the finger-dial type, the worm-gearing on the shaft 11 of the speed-regulating brake is formed by a helically-wound steel wire 23 held in position by friction due to the spring grip of the wire on the shaft. The shaft is axially slidable between adjustable end-bearings 14, 15, so that during the setting movement the shaft moves to the right, the brake members 20 move into an ineffective position, and a collar 31 co-operates with a spring 25 to prevent impulses being sent out. During the return movement, the shaft moves to the left, the brake members become effective opposite the left-hand constricted portion of the cup 19, and the spring 25 is freed so that impulses are sent out by the engagement of the wheel 8 with the projection 26. Off-normal springs 35 are controlled by a stud 32 on the wheel 8. The wire 23 may be quadrangular in section.
Patent GB-353509-A (GB)
Title: Improvements in brackets
IPC: A47B96/06
Filed: 1930-04-25
Abstract: 353,509. Brackets. O'HALLORAN, E. H. J., 2, Besborough Avenue, Bexley, near Sydney, Australia. April 25, 1930, No. 12799. Convention date, April 29, 1929. [Class 52 (v).] An angle bracket 10 is attached to a separately formed attaching member 7 bent at its upper end to form a hook 8 by which the bracket is suspended from a picture rail &c., 13, the lower end 9 of the member 7 being bent rearwardly to space the member from the wall. In a modification the bracket 10 is slidably connected to the attaching member. The bracket is braced by a strut 12 or a web. The end 9 may be sheathed to prevent abrasion of the wall. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a gapped or two-part ring slidably mounted on the horizontal portion of the bracket 10 to receive a curtain rod. This subject-matter does not appear in the Specification as accepted.
Patent GB-353524-A (GB)
Title: Improvements in or relating to the manufacture of articles or materials particularly of organic materials such as rubber provided on their surfaces with mottled patterns or ornamentations
IPC: C08J5/02
Filed: 1930-04-26
Abstract: A mottled effect is produced on surfaces of rubber, wood, cardboard, metal, &c. by treating them, e.g. by dipping, with a coarse aqueous emulsion or dispersion of a coloured rubber solution.  The coarse dispersion may be prepared by adding a 5 per cent solution of rubber in naphtha or benzol, suitably coloured, e.g. with 2 per cent calcium sulphide or vermilion, to a 1,5 per cent aqueous solution of ammonium oleate to give a concentration of 5 per cent of rubber solution in the dispersion.  Vigorous stirring for about 30 seconds breaks down the rubber solution into particles of from ,1 to 4 mm. in diameter. Vulcanizing ingredients may be incorporated in the coarse dispersion. Specifications 323,755, 335,612, [both in Class 70, Indiarubber &c.], and 340,618, Group VII], are referred to.ALSO:A mottled effect is produced on surfaces of rubber, wood, cardboard, metal, &c. by treating them, e.g. by dipping, with a coarse aqueous emulsion or dispersion of a coloured rubber solution.  In an example, a former is coated with one or more layers of aqueous dispersion of rubber &c. and is then, subsequent to the coagulation of the rubber &c., introduced into a bath containing a coarse aqueous dispersion of rubber solution.  When the surface to be ornamented is not freshly coagulated rubber, it may be first coated with a coagulant, e.g. acetic acid, or with an adhesive.  The coarse dispersion may be prepared by adding a 5 per cent solution of rubber in naphtha or benzol, suitably coloured, e.g. with 2 per cent calcium sulphide or vermilion, to a 1,5 per cent aqueous solution of ammonium oleate to give a concentration of 5 per cent of rubber solution in the dispersion. Vigorous stirring for about 30 seconds breaks down the rubber solution into particles of from ,1 to 4 mm. in diameter. Vulcanizing ingredients may be incorporated in the coarse dispersion. Specifications 323,755, 335,612, [both in Class 70, Indiarubber &c.], and 340,618, [Group VII], are referred to.
Patent GB-1071986-A (GB)
Title: Electrical control circuit to provide a radar system with area type moving target indicator
IPC: G01S13/538
Filed: 1965-03-26
Abstract: 1,071,986. Pulse radar. STANDARD TELEPHONES & CABLES Ltd. March 26, 1965, No. 12910/65. Heading H4D. Relates to a moving target indicator (MTI) non-coherent pulse radar of the " area " kind in which fixed target cancellation is based on video comparison over a time period extending over many pulse repetition periods. According to the present invention sub-clutter visibility is enhanced by threshold clipping of the output of a video amplifier (110, Fig. 2 and Fig. 3a) in the radar receiver feeding a cancellation storage medium (tube 204) with the clipped signal train and utilizing the storage medium output (Fig. 3b) to control the gain of a preceding amplifier (109) in the radar receiver. The embodiments relate to a known G.C.A. radar (Fig. 1) with a storage tube of the barrier gridtype which records a charge pattern which is a replica of the area scanned by the radar, moving targets being resolved by spatial change in position and a fixed range gate corresponding to 0-3 miles. The charging time-constant of the storage tube prevents the storage of moving target echoes and the gaincontrolling signal train (Fig. 3b) correspond only to fixed target echoes (305, 306, 307) a receiver I.F. amplifier (109, Fig. 2) being controlled thereby to reduce gain in the presence thereof. Inherent deficiences, e.g. blurring in the storage tube enhance the desirable temporal overlap of the gain-control pulses with respect to the corresponding echo pulses to remove the effects of inherent-circuit time delays. The gaincontrolled amplifier may be as described in U.S. Specification 2,751,587. In a modification of the gain control circuit the storage tube video output is mixed (409, Fig. 4) with the same signal delayed (402) and a delay line (401) is inserted in the trigger pulse feed to the writing and reading scan generators of the storage tube so as to ensure production of leading and trailing edge overlap of recoived signals by the gain control pulses. The storage tube may be replaced by an arrangement of a long persistence indicating cathode-ray tube and a vidicon camera tube operating at low space currents.
Patent GB-1089134-A (GB)
Title: Improvements in the production of carboxylic acids
Inventor: EVANS ERIC BERTRAM
IPC: C07C51/285
Filed: 1964-03-26
Abstract: Mono-, di-, and hydroxy carboxylic acids are prepared by oxidizing a compound RO(-X-O)n-CR1R2.CH(Y)OH (where R is a hydrocarbon or hydroxy-hydrocarbon radical, X is a 1,2-alkylene group, R1 and R2 are hydrogen or alkyl groups, Y is hydrogen or a methyl group, n may be an integer including zero, and (-X-O)n may include different 1,2-alkylene groups), in an aqueous medium in the presence of nickel peroxide.  Mono, -di, and hydroxy acids of formulae RO(-X-O)n-CH1R2COOH, HOOC.R3R4C-O(-X-O)n-CR1R2.COOH and <FORM:1089134/C2/1> (where R3 and R4 are hydrogen or alkyl groups), are obtained and the nickel oxide may be preformed, e.g. by the alkaline oxidation of divalent nickel oxide or hydroxide, or generated in situ by adding a nickel salt to the reaction mixture in the presence of an oxidizing agent.  Examples describe the oxidation of diethylene glycol mono-ethyl ether to yield 2-ethoxy-ethoxyacetic acid, diethylene glycol to yield diglycolic acid, triethylene glycol to yield ethylene diglycollic acid, and the oxidation of tetra-, and poly-ethylene glycol, polypropylene glycol to form mixtures of diacids and hydroxy-acids. Other glycols and glycol mono-ethers are also mentioned.
Patent GB-1217466-A (GB)
Title: Improvements in or relating to devices for the extension of pit props
Inventor: PREDL BRUNO
IPC: E21D15/52
Filed: 1969-03-12
Abstract: 1,217,466. Improvements in or relating to pet-props. G. W. HAMMER [trading as Wilhelm Hammer). 12 March, 1969 [14 March, 1968], No. 12920/69. Heading E1E. An extension piece 1 for a pit prop comprises a base plate 2, fixed retention claws 3 and at least one rotatable claw 4 mounted on a bearing bracket 6 by a pivot-pin 7. A tapered key 10 is provided to hold the claw 4 in its locking position. The claw may be mounted so as to rotate about an axis parallel to the longitudinal axis of the base and the hole through which pin 7 passes may be elongated so that the clamp may be lowered when in position.
Patent GB-127816-A (GB)
Title: Improvements in and relating to Artificial Teeth.
Inventor: LOUIS WEYEL
IPC: A61C13/10
Filed: 1919-05-23
Abstract: 127,816. Weyel, L. June 4, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Drawings to Specification. Teeth, artificial.-Ordinary removable dentures are fitted with interchangeable teeth such as have hitherto been applied to fixed bridge-work. The gold backing of the interchangeable porcelain is soldered to a rectangular gold plate serving as an anchorage in the vulcanite of the denture. The gold plate is held in place in the plaster mould, during vulcanization, by means of a split openended metal tube within which it slides, and which projects a short distance into the plaster. The split tube is removed after vulcanization.
Patent GB-1484782-A (GB)
Title: Mixtures of disazomethine and monoazo-methine compounds processes for their preparation and use as pigments
IPC: C09B55/00
Filed: 1975-03-27
Abstract: 1484782 Clinically prepared mixtures of dis- and monoazomethine compounds HOECHST AG 27 March 1975 [30 March 1974] 12984/75 Addition to 1413264 Heading C4P A process for the manufacture of mixtures of compounds consists in reacting more than one mole of one or more diamines of Formula (II) with 2 moles of one or more aldehydes of Formula (III) The chemically prepared mixtures are represented by the Formula (I) in which R represents the same or different substituents selected from halogen, lower alkyl, lower alkoxy, cyano, nitro, lower alkylsulphonyl, phenylsulphonyl, lower alkoxycarbonyl, carbamoyl, sulphamoyl, mono- or di - (lower alkyl) - carbamoyl or -sulphamoyl, lower alkanoyl - amino and benzoylamino, or in which R represents H, and a is a number greater than zero and smaller than one. Such a mixture may comprise two moles to one mole of a compound (Ia) and one mole to three moles of (Ib) in which R 1 , R 2  and R 3  may be the same or different and each represents H or a non-ionic substituent. The mixtures give pigments which are particularly suitable for printing pastes, and may be used to colour a variety of high molecular weight organic materials in the mass, in spinning solutions, or in lacquers.
Patent GB-132332-A (GB)
IPC: B64C1/06
Abstract: 132,332. Wylie, H. N. Sept. 9, 1918. Framework. - Thin metal spars or other members of girder form for aeroplanes or other structures are formed with longitudinal corrugations both in the flanges and the web to provide the necessary stiffness for withstanding shear and longitudinal compression stresses. Fig. 1 shows a spar composed of flanges a and webs b, the edges of the flanges being bent to a small radius of curvature and connected together. The webs b may be bent sufficiently near at the centre to be connected together. In other forms, each web is made in two longitudinal parts which are connected together directly or by an intervening plate web. Fig. 4 shows a form with the upper and lower members formed as tubes and connected to each other by a plate web. Polygonal construction may replace the continuous curves shown.
Patent GB-315933-A (GB)
Title: An improved soda diffuser for marine and land boilers
IPC: C02F1/68
Filed: 1928-05-05
Abstract: 315,933. Wyndham, J. N., and Wyndham, S. L. May 5, 1928. Incrustation, preventing and removing. - A device for supplying soda solution to a boiler comprises a closed container 1 located at a point above the boiler water level. A delivery pipe 3 projects into the boiler feed pipe A, and a pipe 6 is connected to the air vessel C of the boiler feed pump, so that the solution in the container 1 is under boiler presssure and may be delivered by gravity.
Patent GB-651462-A (GB)
Title: Reinforced concrete construction
IPC: B28B23/04
Filed: 1947-05-16
Abstract: 651,462. Pre-stressed reinforced concrete. GLOVER, C. W. May 16, 1947. No. 13294. [Class 20(iv)] [Also in Group I] The wire reinforcements 9 of pre-cast concrete beams pass through one end of the mould and are pre-stressed by applying tension to wires 15, Fig. 1, or rods 37, Fig.. 4, secured to reinforcement-gripping dogs 36 and passing through holes in an anchor plate 5 or 38, means associated with the wires or rods, e.g. adjustable grippers 14 or nuts 39, bearing against the plate 5 or 38 to maintain the tension while the beam is cast. As shown in Fig. 1, the wires 15 pass over vertically adjustable pulleys 16 to a winch 17 on a block 10 mounted on wheels rolling on transverse rails 12. In a modification (not shown), each wire 15 is connected to a stress gauge connected by wires and pulleys to a transversely movable winch. As shown in Fig. 4, the reinforcements are tensioned by movement of the anchor plate 38 which is mounted on a carriage 40. A right- and left-hand screw 42, turned by a wheel 48, engages a nut 43 on the carriage and a fixed nut 44. A pointer 49 indicates the stress applied. In addition to the reinforcements 9, reinforcing wires 52 pass through holes in the plate 38 and are clamped by toothed wedges 53, Fig. 5. The dogs 36 comprise two spring. pressed toothed jaws 56.
Patent GB-133310-A (GB)
IPC: D06F81/08
Abstract: 133,310. Deslandes, E. Sept. 10, 1918, [Convention date]. Ironing-boards; ironing, steaming and damping apparatus for.-One part 1 of an ironing-board is provided with perforations through which steam issues from a chamber 3 beneath, so that steaming and hand-ironing may be performed with the one apparatus. A perforated baffle 4 is fitted in the chamber and a control valve is provided on the steam-supply pipe 5. Condensed steam is discharged at 7. The steaming surface is of metal and may be extended over one end of the board, the whole of which is covered in the ordinary way. The invention may be applied to laundry finishing-tools or blocks.
Patent GB-847782-A (GB)
Title: Improvements in vinyl halide polymer compositions
IPC: C08L27/06
Filed: 1959-04-20
Abstract: A thermoplastic composition comprises a homogeneous mixture of 51% to 98% of (a) a resinous vinyl halide polymer and 49% to 2% of (b) a graft copolymer of from 10 to 200 parts of styrene and methyl methacrylate in a ratio of 33:67 graft copolymerized upon 100 parts of a rubbery copolymer in aqueous emulsion form of butadiene and styrene in a ratio of 70:30 to 80:15, and (c) a resinous copolymer of styrene and methyl methacrylate in a ratio of 33:67, the amounts of (b) and (c) ranging from 75 to 25 parts of (b) and 25 to 75 parts of (c) per 100 parts of (b) + (c), the percentages and parts being by weight.  Vinyl halide polymers specified are polyvinyl chloride and copolymers of vinyl chloride with vinylidene chloride, vinyl acetate, acrylic and methacrylic acids, methyl, ethyl and octyl acrylates, methyl methacrylate, acrylonitrile, diethyl maleate, styrene and chlorostyrene.  Tin dilaurate may be added to the compositions as a stabilizer.
Patent GB-1099476-A (GB)
Title: Headbox
IPC: D21F1/02
Filed: 1965-03-30
Abstract: 1,099,476. Paper-making. BELOIT CORPORATION. March 30, 1965 [April 3, 1964], No. 13393/65. Headings D2A and D2B. In a headbox of a paper-making machine the stock is urged through a perforated curved plate 23 by bars 19-22 of aerofoil crosssection. Each bar 19-22 is supported by a series of arms 15-18 on rotor 14. The heading and trailing edges of the bars 19-22 create respectively positive and negative pressure waves which urge the stock through the perforations-which may be slots or holes- and then suck back any fibre lumps clogging the perforations. These lumps are removed through exit A. The headbox may be of the pressurized type and have flow evener roll 27, water showers 8a, and an adjustable slice 3a. The headbox may take various forms, Figs. 2-8 (not shown),-for example, these may be eight bars of aerofoil cross-section; the stock inlet Z may lead directly into the cylindrical space defined by walls 23, 37; the stock inlet may be formed by two co-axial pipes extending in the cross-machine direction, the stock flowing from the inner pipe through perforations into the annular space between the pipes and thence into the headbox proper; or shaft 13 may be hollow and both shaft 13 and rotor 14 be perforated so that the stock is fed into shaft 13 and through the perforations into the cylindrical space. Plate 23 may be vibrated. In one embodiment Figs. 5 and 6 (not shown) a second headbox is placed upside down underneath the first headbox with the two stock streams converging but not intermixing adjacent a common slice. Thus a "twoply" sheet may be obtained. The stock in the upper headbox may have shorter fibres, lower consistency, or be of higher grade than the stock in the lower headbox. The upper stream may flow at less than the wire speed, or may have some filler with the lower stream being without additive.
Patent GB-134523-A (GB)
IPC: C06B23/00
Abstract: 134,523. Atlas Powder Co., (Assignees of Hill, R. L., and Strane, A. J.). Nov. 1, 1918, [Convention date]. Explosives.-Consists in adding copper sulphate to explosives, especially to the so-called " safety " explosives containing ammonium nitrate. The copper sulphate is partially or wholly dehydrated before being mixed with the ingredients of the explosive. One example contains ammonium nitrate 88 per cent, trinitrotoluene 10 per cent, and copper sulphate 2 per cent.
Patent GB-1235088-A (GB)
Title: Device for the detachable fixing or location of a part on a pin or shaft
IPC: F16D1/08
Filed: 1970-03-20
Abstract: 1,235,088. Securing members on shafts. MASCHINEN - UND BOHRGERATEFABRIK ALFRED WIRTH & CO. K.G. 20 March, 1970 [31 March, 1969], No. 13505/70. Heading F2U. A member 1, such as a straightening-machine roller, is held on a shaft or spindle 2 by a supporting sleeve 8 and friction disc 9 loaded axially by springs 4, provision being made for the attachment of a fluid pressure actuator 10 by which the springs may be overridden and disc 9 released for removal of member 1. Springs 4 are carried by an axial pin 3 screw threaded into the end of shaft 2 and carrying an end nut 5 serving as an abutment for the springs 4. To effect release the actuator 10 is positioned on the end of sleeve 8 by a flange 17 engaging a circumferential groove 18 and pressure fluid supplied to piston 13, which first engages the end of pin 3 and then moves sleeve 8 to the left against the action of springs 4 to allow removal of disc 9, which is rotated to disengage registering radial projections and grooves 9b to allow axial removal along splines 8b.