baber/WOPTO huggingface dataset:
Patent GB-305794-A (GB)
Title: Improvements in or relating to trimming or paring machines for use in the manufacture of boots and shoes
IPC: A43D29/00
Filed: 1928-01-20
Abstract: 305,794. Gimson Shoe Machinery Co., Ltd., Wardle, W., and Wright, H. S. Jan. 20, 1928. Trimming. - Relates to machines for trimming the breast flaps of Louis heels, and consists in the provision of means for guiding the. work and holding the surplus margin to be removed, in conjunction with a trimming knife which is rapidly oscillated or reciprocated, the construction being such as to leave the operator both hands free for manipulating the work. The head of the machine is formed wih fixed upper and lower arms 5, 5<a>. To the lower arm is pivoted an arm 16 carrying a block 16<a>. The block is normally pressed against the work by a spring 17, a stop 19 limiting the movement of the arm when no work is in position. The upper arm 5- adjustably carries a guide 12 having a lower surface which serves as an anvil or cutting block for the knife. The arm 5 also carries an adjustable guide 6<a> for an arm 3, oscillated by an eccentric and carrying a knife 1 which may have two or more cutting edges which may be successively placed in the operative position. In a modification, guide rollers are substituted for the guides 12, 16<a>, and the arm 3 is urged in one direction by a spring.
Patent GB-543760-A (GB)
Title: Method of manufacturing metallic magnesium
IPC: C22B26/22
Filed: 1941-02-12
Abstract: 543,760. Distilling magnesium. ARIMORI, T., KONISHI. Y., ISHIBASHI, J., and YOSHIMURA, R. Feb. 12, 1941, No. 1927. Drawings to Specification. [Class 82 (i)] [Also in Group III] Metallic magnesium is produced in a cyclic process according to the following equations:- MgO+CaCl 2 +MgCl 2 +CO 2 =CaCO 3 +2 MgCl 2  .. (1) MgF 2 +CaC 2 =Mg+CaF 2 +2C ..... (2) CaF 2 +2 MgCl 2  = MgF 2  + CaCl 2  + MgCl 2  ..... (3) The magnesium chloride of reaction (3) .may be substituted by the nitrate or other magnesium salt, the radical of which does not produce an insoluble precipitate with calcium ions. Reaction (1) may occur at 80‹C., the substances being stirred whilst carbon dioxide gas is passed therethrough. Reaction (2) may be effected by intimately mixing the constituents and putting them into a reducing furnace heated to 950‹C., for one hour at 3 to 5 mms. Hg. pressure, the impurities in the calcium fluoride residue being separated, before use in reaction (3), by treating with dilute hydrochloric acid and filtering. The magnesia for reaction (1) may be obtained from magnesite or dolomite by roasting &c.
Patent GB-103854-A (GB)
Title: Improvements in or relating to Furnaces.
Inventor: PECKHAM EDGAR
IPC: A21B3/04
Filed: 1916-02-10
Abstract: 103,854. Peckham, E. Feb. 10, 1916. U-tube and like superheaters. - The products of combustion from an ordinary fire are passed through a number of superposed horizontal tapered flues or combustion chambers constructed of or lined with refractory material, which are constricted towards their outlet. The products are thus highly heated and cornpletely gasified before they are brought into contact with the steam-boiler or other apparatus to be heated. Steam pipes may be arranged in such flues. Fig. 1 shows a water-tube boiler with two such flues or chambers b<1>, b<2> formed by fire-brick arches or partitions, the first having closed ends, and the second being connected with the combustion chamber b by side flues as indicated. The gases escape from the chamber b' through the dampered opening g. Steam is superheated in the pipes i<2>.
Patent GB-145369-A (GB)
Title: Improvements in horns for gramophones
IPC: G10K13/00
Filed: 1919-03-24
Abstract: 145,369. Lewis, A. March 24, 1919. Sound magnifying and directing appliances.- In a horn for sound-reproducing machines, the central and outer tapering members J, Fare formed with annular concave surfaces L, F<1> respectively at their smaller end and are mounted on the central tube so as to be capable of adjustment longitudinally thereon. As shown, the members J, F are carried by sleeves K<1> of indiarubber or like material whereby the size of the passages between the different members may be varied.
Patent GB-1197039-A (GB)
Title: Device for Grasping the Thread Commencement of a Cop by means of a Suction Nozzle
Inventor: REINERS WALTER
IPC: B65H67/08
Filed: 1968-01-15
Abstract: 1,197,039. Winding yarns. W. REINERS. 15 Jan., 1968 [20 Jan., 1967], No. 2113/68. Addition to 1,142,955. Heading D1J. In apparatus by which the thread commencement, not fixed in an underwinding, of a cop to be fed to a winder can be grasped by a suction nozzle situated within a falling or sliding path of the cop, the nozzle mouth 3 being constructed in the form of an annular gap surrounding the cop, the annular gap 3 is formed in at least two components 51, 52 displacable relative to each other so as to vary the crosssection area of the opening 50 for the passage of the cop. At the opening of the suction passage 4 into a suction conduit 10 a movable member (11), Fig. 4 (not shown), is arranged to be pivoted by a lever 13, Fig. 3, to determine the direction of the air current in the passage 4. Barbed needles 8 are arranged in the gap 3 to extend along the whole gap at every size of the opening 50. The components 51, 52 each comprise two halves 51a, 51b and 52a, 52b held together by screws 61, 63, respectively, and the component 52 slides within the component 51, as shown. The opening 50 is adjustable from the minimum cross-section of Fig. 3 to an approximately hexagonal maximum crosssection, Fig. 4 (not shown). A scale 52c indicates the relative displacement of the two components 51, 52. Thread deflecting elements (59), (60), Fig. 2 (not shown), are provided at points 57, 58, Fig. 3, to prevent the thread catching at these points. A guide 64 facilitates the sliding of the cop through the opening 50.
Patent GB-243197-A (GB)
Title: Improvements relating to magnesia cement
IPC: C04B18/04
Filed: 1925-01-24
Abstract: 243,197. Werner, K. Jan. 24, 1925. Plastic compositions containing magnesia, magnesium chloride, and silicic acid are produced by adding to magnesia and magnesium chloride solution a filler which contains at least 30 per cent of silicic acid in a form capable of reacting with the excess chloride. The residues obtained in the manufacture of alum and aluminium sulphate constitute a suitable filler of this kind.
Patent GB-637081-A (GB)
Title: Improvements in or relating to display arrangements for electric oscillographs
IPC: G01R13/28
Filed: 1946-01-23
Abstract: 637,081. Cathode-ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd., and EARP, C. W. Jan. 23, 1946, No. 2224. [Class 37] [Also in Group XL (c)] An arrangement for producing multiple traces on the screen of a cathode-ray oscillograph is characterized in that it includes series and shunt blocking devices which in the circuit operation are alternately blocked and unblocked so that deflecting potentials are applied successively and separately to all the deflecting plates. In the radio direction indicator circuit shown, Fig. 2, which is devised for five simultaneous traces a pulse distributer 29 supplies positive rectangular pulses in regular succession which momentarily block the corresponding shunt rectifiers 30A-E to effect the unblocking successively of series rectifiers 27A-E so that potentials 25A-E are applied in corresponding succession to the deflecting plate 23 of the oscillograph 24. Condensers 33A-B and resistances 26A-B function in relation to potentials 25A-B respectively so that the former produces a radial trace as disclosed in Specification 590,260 and the latter an adjustable cursor line as in Specification 637,083. Potentials 25C-D produce line traces and 25E a graduated circular trace in cooperation with pentode 34. The latter operates synchronously with the occurrence of the positive unblocking pulse relative to 25E to so control the potential of beam electrode 45 that for the duration of the pulse the beam is alternately suppressed and released whereby a series of dots appears around a circular trace. The other plates are each associated with individual circuit elements as for plate 23 so that five deflecting potentials are applied in turn to all the plates. The circuit may be modified commensurate with reversal of the blocking devices and negative pulses from distributer 29. In a modification, Fig. 1 (not shown); which utilizes diodes as the series and shunt devices and which is arranged for two simultaneous traces unblocking pulses for the two corresponding potentials are derived from a multivibrator. Specifications 557,711, 590,261 and 591,928 also are referred to.
Patent GB-178212-A (GB)
Title: A new or improved roofing tile
IPC: E04D1/16
Filed: 1921-01-17
Abstract: 178,212. Moss, J., Moss, J. W., and Downing, G. H. Jan. 17, 1921. Roofing-tiles; firing. -A roofing-tile of the tvpe having V-projections on the upper portion of its face which co-operate with recesses on the lower portions of the backs of adjacent tiles is formed on its face with projections d, Fig. 1, midway of the width of the tile, a projection d<2> extending to the sides and side projections d<1>. The back of the tile has recesses e, e<3>, e<1>, Fig. 3, corresponding to the projections on the front and another set of recesses e<2> extending to the edges. The lower edge c of the tile is inclined or bevelled. To cover a roof, the tiles are placed as shown in Fig. 6, the projections d being accommodated in the recesses e<2> of two adjacent tiles. The projections d<2> of one row are in front of the edges c of the succeeding row, and prevent wet from creeping between the tiles. The projections d direct downwards any wet passing between the joining edges of the uppermost tiles, and the projections d<1> prevent wet from passing to the joining edges of the lowermost tiles. For packing and during transit, alternate tiles are reversed and the projections d, d<1>, d<2> on one are accommodated in the recesses e, e<1>, e<3> of another. In a modification, the backs of the lower edges c are recessed so as to overlap the projections d<2> when fixed to a roof.
Patent GB-196392-A (GB)
Title: Improvements in diaphragms for gramophone reproducers, telephone receivers and like sound producing devices
IPC: H04R7/00
Filed: 1922-01-25
Abstract: 196,392. Graham, E. A. Jan. 25, 1922. Diaphragms.-A composite diaphragm for a telephone receiver or the like, comprises a plane disc of mica provided on one or each side with a complete or partial protective coating of celluloid, collodion, cellulose acetate, or like cellulose product applied to the disc in solution and dried. Alternatively, as shown, the diaphragm may consist of two or more layers of mica a, a<1>, cemented together by an intervening layer b of celluloid, and having outer layers b<1>, b<2> of celluloid or like composition applied as described above.
Patent GB-349483-A (GB)
Title: Improvements in the design of radio and sound reproducing apparatus and the like
IPC: H03F3/44
Filed: 1930-01-23
Abstract: 349,483. Valve amplifying circuits. HENRY, P., 6, Vaughan Street, and ROBERTS, E. H., 283, Legrams Lane, both in Bradford, Yorkshire. Jan. 23, 1930, No. 2330. [Class 40 (v).] An amplifying circuit for radio reception and sound reproduction has separate cathode heating circuits for each valve, and the anode of each valve is directly connected to the grid of the succeeding valve. As shown in the Figure for a low frequency amplifying circuit, the cathodes of the two valves V, V<1> are heated by separate circuits 1, 2 from A.C. mains. The plate P of the first valve V is connected directly to the grid G of the second valve, and between the plate P and the cathode of the valve V<1> are connected in series a coupling-choke C and a grid-biasing resistance R, the latter being shunted by a condenser B. The H.T. supply is shunted by a potentiometer Rx, and condensers Bx, which have their intermediate points connected to the valve cathodes. For high-frequency amplification, screen-grid valves may be used (Fig. 2, not shown), and the choke C is replaced by a tuned circuit. Reference has been directed by the Comptroller to Specifications 289,217, 290,032, 300,511, 309,044, 310,539, 330,956 and 335,484, [all in Class 40 (v), Wireless signalling &c.].
Patent GB-450937-A (GB)
Title: Improvements in the manufacture of wire ropes
IPC: D07B1/22
Filed: 1935-01-24
Abstract: 450,937. Wire ropes. BOWIE & CO., Ltd., W. T., BOWIE, A. P., and CHATTELL, A. R., 141, Avenue Street, Glasgow. Jan. 24, 1935, No. 2343. [Class 109] A wire rope has three strands 1, 2, 3, each of which comprises two or more separate wires 4, 4<a> arranged side by side to give the strand a major dimension, the strands being twined or plaited together with the major dimensions always in parallel planes. The interstices between the strands may be filled by other wires, by twine or by yarn. Each wire 4, 4<a> may be formed by a number of fine flexible wires 7. The rope has an oval or stream-lined form in any cross-section. In a modification, one of the three wires is a single wire.
Patent GB-1365503-A (GB)
Title: Aromatic olymers
IPC: C08K5/49
Filed: 1972-01-18
Abstract: 1365503 Aromatic polymers IMPERIAL CHEMICAL INDUSTRIES Ltd 7 Feb 1972 [10 March 1971 18 Jan 1972] 6458/71 and 2347/72 Heading C3R A thermoplastic composition having improved thermal stability comprises (a) 96- 99-99% by weight of at least one aromatic polysulphone and (b) 4 to 0À01% by weight of a stabilizer which is at least one phosphorus compound having the formula Y 3 PQ in which Q is oxygen or sulphur and Y is a univalent organic radical which is preferably R or OR in which R is any univalent alkyl, aryl, aralkyl, alkaryl or alicylic group which may be substituted consisting of up to 20 carbon atoms. In the examples a polysulphone consisting of repeating units is stabilized with the following phosphates (PhO) 3 PO, Ph 3 PO, Ph 3 PS, (Me.PhO) 3 PO, (p.MePhO) 3 PS, (p-BrPhO) 3 PO and a polysulphone having repeating units of the formula is stabilized with (PhO) 3 PO, where Ph is phenyl. Optional substances which can be blended with the polysulphone include other thermoplastic polymers, elastomeric materials, P.T.F.E., reinforcing fillers, lubricants, abrasives, friction materials, magnetic materials, photosensitizers, dyes and pigments. Uses.-Fibres, films, mouldings and extruded products.
Patent GB-1417642-A (GB)
Title: Device for generating electromagnetic waves
IPC: H03B19/00
Filed: 1973-01-17
Abstract: 1417642 Controlling light INTERNATIONAL BUSINESS MACHINES CORP 17 Jan 1973 [25 May 1972] 2365/73 Heading H4F [Also in Divisions C4 and H1] A device for generating electromagnetic waves comprises a semi-conductor body with a superlattice structure having a longitudinal axis, and means for applying to the structure an input electromagnetic wave having a component of its electrical field parallel to said axis. The described structure consists of a series of superposed layers alternating in electron potential as a result of differences in doping or bandgap, there being at least 20 layers each 25- 250  thick. Typically the layers are epitaxially deposited on a highly doped semi-conductor substrate through which an ohmic contact to the structure is made, another contact consisting of a transparent layer of indium oxide tin oxide deposited on the last deposited semiconductor layer by reactive R.F. sputtering and annealed. Exemplary structures consist of alternately intrinsic and N-type germanium layers, or of layers alternately of Ge and Ge 1-x Si x  where x is 0À2-0À1, of GaAs and Ga 1-x Al x As where x is 0À1-0À4 or of InAs and In 1-x Ga x As where x is >0. The layers may be deposited as described in Specification 1,282,708 or, in order to reduce interdiffusion, by the low temperature vacuum deposition technique of U.S.A. Specification 3,361,600. With zero voltage between the contacts the output consists of odd harmonics of the input wave but on applying a direct voltage even harmonics are also generated. The amplitude of the even harmonics is proportional to the voltage, thus enabling them to be modulated or chopped by varying or switching the applied voltage. The correct orientation of the electric field associated with the input wave which may be of visible, ultraviolet, infra-red or microwave frequency may be achieved by oblique incidence of the wave or by providing an optical grating on the transparent electrodes. The reflected output waves of different frequencies are used, as in the Fig. 4 arrangement, the output includes, in addition to the harmonics, sum and difference frequencies. In all cases the required frequencies can be selected by means of filters. Contacts can be dispensed with by placing the structure in a suitable electric field.
Patent GB-548141-A (GB)
Title: Improvements in or relating to containers
IPC: A63F3/00
Filed: 1941-02-21
Abstract: 548,141. Board games. LOWY, F. Feb. 21, 1941, No. 2394. [Class 132 (ii)] [Also in Group XVII] A container for storing games pieces consists of flanged rectangular panels 2, 3 hinged to an intermediate panel 1, for folding into the form of a closed container. The surfaces of the panels may be marked to form a playing board. The flanges 6 may be arranged to overlap when the container is closed, or may abut against one another. Gusset may be provided at the ends of the intermediate panel 1 to close the gaps between the flanges. Reference has been directed by the Comptroller to Specifications 10729/11, 154,406, [both in Class 132 (ii)] and 402,548 and U.S.A. Specification 1,941,558.
Patent GB-784900-A (GB)
Title: Improvements in or relating to methods of and apparatus for entraining granular or powdery material in an upwardly flowing gas stream
IPC: B01J8/00
Filed: 1956-01-25
Abstract: 784,900. Pneumatic conveyers. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Jan. 25, 1956 [Jan. 27, 1955], No. 2424/56. Class 78(1). In a conveyer for powdered or granular material a vertical pipe 2 for the conveying gas stream leads to a vertical riser 1 into which the material passes from the supply chamber 5 through one or more annular passages 4 and nozzles 18, 6 are provided in the chamber 5 above and below the bottom of the riser, respectively, through which gas is supplied to fluidize the material. The upper end of the pipe 2, Fig. 1, projects into the riser 1 and the passage 4 is the space between them. In a modification, Fig. 3, the ends of the riser 1 and pipe 2 are shaped and arranged so that there is a constriction at the passage 10. In a further modification, Fig. 5, a series of overlapping rings 12 of increasing diameter are arranged between the ends of the pipes 1, 2 to provide passages 11.
Patent GB-784161-A (GB)
Title: Improvements in electric cables and insulated wires
Inventor: BRAZIER LESLIE GIDDENS
IPC: B29C70/68
Filed: 1955-01-27
Abstract: Accessories and fittings associated with electric cables and insulated wires are manufactured by a method in which a body of thermoplastic material, such as polyethylene, polystyrene, a polydimethylsiloxane or natural rubber, which forms part of an accessory or fitting, is formed on the insulated wire or cable from the material in its normal thermoplastic state, and the whole body or a part of it is thereafter subjected to high energy irradiation to convert the material by cross-linking between molecules to a tougher and more elastic condition.  Specification 715,649, [Group V], is referred to.ALSO:Accessories and fittings associated with electric cables and insulated wires are manufactured by a method in which a body of thermoplastic material, such as polyethylene, polystyrene or a polydimethylsiloxane, which forms part of an accessory or fitting, is formed on the insulated wire or cable from the material in its normal thermoplastic state, and the whole body or a part of it is thereafter subjected to high energy irradiation to convert the material by cross-linking between molecules to a tougher and more elastic condition.  Specification 715,649, [Group V], is referred to.ALSO:Accessories and fittings associated with electric cables and insulated wires are manufactured by a method in which a body of natural rubber, which forms part of an accessory or fitting, is formed on the insulated wire or cable from the rubber in its normal thermoplastic state, and the whole body or a part of it is thereafter subjected to high energy irradiation to convert the rubber by cross-linking between molecules to a tougher and more elastic condition.  Specification 715,649 is referred to.
Patent GB-1130271-A (GB)
Title: Pyrocarbonate esters and their preparation
IPC: C07C69/96
Filed: 1967-01-18
Abstract: 1,130,271. Pyrocarbonic acid esters. SHIONOGI & CO. Ltd. 18 Jan., 1967 [24 Jan., 1966; 24 Oct., 1966], No. 2588/67. Heading C2C. Pyrocarbonic acid diesters of formula O(COOR<SP>1</SP>) 2 , in which each R<SP>1</SP> represents an alkyl or an aralkyl group, are prepared by reacting sulphonyl chlorides of the formula in which R represents a hydrogen atom or a halogen atom which, when there is only one sulphonyl chloride group, is in the position o- or pto the sulphonyl chloride group, with about two equivalents of monosodium (or monopotassium) carbonate esters of formula MeOCOOR<SP>1</SP>, in which Me is a sodium or potassium ion, for each chlorosulphonyl group in the starting sulphonyl chloride.
Patent GB-876347-A (GB)
Title: Improvements relating to gas turbine engines
Inventor: MCDOWALL CHARLES JAMES
IPC: F01D25/24
Filed: 1959-01-26
Abstract: 876,347. Turbine casings. GENERAL MOTORS CORPORATION. Jan. 26, 1959, No. 2824/59. Class 110 (3). A gas turbine casing is formed of upper and lower semicircular halves 16, 18 of the combustion chamber, jointed to each other and to the cylindrical turbine section 22. The halves 16, 18 joint at the longitudinal ribs and grooves 33, 38 and 32, 39. The circumferential ribs and grooves 45, 44 on 16, 18 abut at 58 to form a continuous surface and joint with 52, 53 on 22. The parts are held in position by bolts inserted in holes 54.
Patent GB-582766-A (GB)
Title: Combined transmitter and receiver for radio signalling
IPC: H04B1/44
Filed: 1944-02-15
Abstract: 582,766. Frequency modulation; super-regenerative circuits for wireless reception. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 15, 1944, No. 2827. Convention date, Feb. 15, 1943. [Class 40 (v)] A super-regenerative detector circuit for receiving amplitude-modulated waves is convertible into a receiver, or transmitter; for frequency-modulated waves. The aerial 1 is connected to earth through a resonant circuit S which is in back-coupling connexion with a pair of parallel-connected detector valves 5, 6. These valves are alternately rendered oscillatory and quenched by voltages applied to their anodes from opposite sides of the tuned circuit 44 of a reciprocally-coupled pair of valves 40, 41 operating as a quenching oscillator at supersonic frequency. The detector anodes are connected, through filters for removing carrier and quenching voltages, to the primary coils 14, 14<1> of an audio-transformer which add their effects in the secondary coil 151. Audioamplifiers &c. connected to the coil 151 thus receive the detected signal when an amplitudemodulated wave is received on the aerial 1. For the reception of F.M. waves, the quenching- oscillator feeds its output through a switch 83 to the grid of a thermionic reactance valve 70 shunted across the resonant circuit S, which is thereby put off-tune in opposite directions alternately. The F.M. wave is thus given an amplitude-modulation which is detected in the valves 5, 6 and is conveyed to the transformer, the primary coils 14, 14<1> being connected for this purpose in differential relation by throwing the switch 32 to reverse position. In order to transmit F.M. waves a switch 17 is operated to give a higher supply voltage to the anodes of valves 5, 6 which now constitute the transmitter oscillator ; a switch 50 is operated to disable the quench oscillator 40, 41 ; and the switch 83 is thrown over to connect the microphone 93 into the grid circuit of the reactance valve 70. These switches may be ganged.