baber/WOPTO huggingface dataset:
Patent GB-861566-A (GB)
Title: Continuous vacuum casting process
IPC: C22B9/22
Filed: 1957-08-07
Abstract: 861,566. Vacuum degassing metals; crucibles; granulating metals. STAUFFER CHEMICAL CO. Aug. 7, 1957 [Aug. 13, 1956; June 10, 1957], No. 24837/57. Classes 72, 82(1) and 82(2) [Also in Group XXII] A continuous process for degassing metal comprises subjecting the metal to successive treatments in chambers operating at a rough and high vacuum respectively, and casting the metal while under vacuum. The rough vacuum is defined as a pressure between 10 microns and 1 mm. of mercury and the high vacuum as less than 1 micron of mercury. As shown, a vessel 1, divided into two portions by a wall 2 and a crucible 5, is evacuated by pumps 3 and 4. The crucible is heated by electron bombardment from a cathode 10 which is heated by current from transformer 15 and maintained at a strongly negative potential with respect to earth by generator 16. Bar stock 17 is fed through seal 18 and melts in the crucible evolving most of its volatile impurities in the upper chamber under the influence of the rough vacuum. The molten metal can then flow through orifice 6 controlled by plug 7 into the high vacuum chamber where the metal is cast continuously in water cooled copper mould 31. A pool of metal 29 is kept well above its melting point by electron bombardment from cathode 35 which is heated by transformer 40 and kept negative by generator 41. The crucible is surrounded by cooling baffles 20, 21 and 22 in the top chamber, and 23 to 27 in the lower chamber, which condense the vapours evolved and thereby reduce the load on the vacuum pumps. To prevent baffles 23-27 from being electron bombarded they are kept at a negative potential by generator 44 and insulators 42 and 43, or they may acquire a negative charge as a result of the absorption of electrons in the absence of a generator. Modifications disclosed include the use of three vacuum stages instead of two, the melting of a material such as titanium sponge in a small cerium sulphide crucible with continuous addition of solid and continuous removal of the liquid metal, the production of castings of metals such as steel which are less reactive than titanium by collecting the metal in a ladle and then pouring it into moulds inside the vacuum chamber, the use of alternative forms of heating such as induction in place of electronic heating, and the pelletization of titanium by allowing it to lose heat while falling through the high vacuum chamber Specification 861,567 is referred to.
Patent GB-359109-A (GB)
Title: Improvements in or relating to waste pipes for washing coppers and other liquid containers
IPC: D06F39/08
Filed: 1930-08-20
Abstract: 359,109. Washing - boilers. DEAN, W., Victoria Works, Accrington Road, Burnley. Aug. 20, 1930, No. 24960. [Class 64 (i).] The waste pipe 4 of a washing- boiler 1 is attached by providing it with a flange 5 at one end and soldering or brazing this in a recess 3 in the bottom plate of the boiler. A plug 13 with slots 14 prevents large pieces of material leaving through the waste pipe.
Patent GB-301146-A (GB)
Title: Improvements in or relating to stroboscopic apparatus
IPC: G01P3/40
Filed: 1927-09-22
Abstract: 301,146. Bartrum, E. R. Sept. 22, 1927. Stroboscopic apparatus comprises a rotatablymounted viewing-shutter having one or more apertures so arranged that when the axis of rotation of the shutter is positioned between the eyes of the user and in the direction of vision, each slot moves across the lines of vision of both eyes of the user. The shutter is preferably rotated by a jet of air such as described in Specification 248,425. A disc 2, having a flanged rim provided with teeth 20 upon which air impinges from the jet 21, is constructed with a number of viewing slits 22 and is secured to its spindle by nuts 13, 14, which are also used to clamp a second disc 3, having slots 24, against the disc 2. Relative adjustment of the two discs enables the slots in each to be arranged so that any number of slots from one to four are in register and evenly spaced round the disc. By this adjustment, examination over a considerable range of speeds may be made. A key is provided fitting the slot 29 and the holes 28 for the relative adjustment of the discs.
Patent GB-259954-A (GB)
Title: Coal cutting machine
IPC: E21C25/64
Filed: 1926-10-08
Abstract: 259,954. Ducoeur, J. M., and Eloy, F. Oct. 14, 1925, [Convention date]. Coal-cutting machines. - A light, portable coal-cutting machine comprises a rotary cutter 5, similar to a milling-cutter, carried by a bar 3 which slides through a guide 4 and is rotated by a motor 1 connected to a nut 7, or part of a nut, engaging a screw 8 by which the motor may be fed along a support 6; the machine may pivot about a part 12, or about a laterally off-set sleeve vertically adjustable on a column, to groove the coal, or it may be moved by rack or screw means along a transverse bar adjustably supported by two uprights, or it may be mounted on a truck or sledge, guided or otherwise, and be moved laterally by means of a winch.
Patent GB-1285171-A (GB)
Title: Improvements in furniture decoration
IPC: A47B95/00
Filed: 1968-05-25
Abstract: 1285171 Ornamenting J P HINDLEY (Ostthueringer Moebelwerke Zeulenroda-Triebes VEB) 22 Aug 1969 [25 May 1968] 25097/68 Heading B6G Articles of furniture are decorated by bonding a heat-deformable foam sheet to the article and subsequently deforming the mat by indenting with a heated embossing stamp. Preferably a P.V.C. foam layer is bonded to the article using an adhesive e.g. a pressuresensitive adhesive and is provided with a covering e.g. unfoamed P.V.C. before the bonding.
Patent GB-150910-A (GB)
Title: Improvement in roll for polishing machines
IPC: B24D13/20
Filed: 1919-10-14
Abstract: 150,910. Dilg, C. H. J. Oct. 14, 1919. Rollers or cylinders.-In a roll for a polishing- maohine, the rubber or other polishing-ring is held between the outer annular portions of two interchangeable clamping-rings that have inner annular portions provided with similar interlocking parts. The clamping-plates 14, 15, which may be mounted direct on a shaft 12 or on a hub 11 secured thereon, have offset outer annular portions, adapted to hold the polishing-ring 16, and inner annular portions provided with equally spaced lugs or pins 15<c> and intermediate holes 14<c>, the pins or lugs being adapted to engage the holes detachably to lock the plates together. The pins may be made long enough to project through the corresponding holes and to engage in holes in flanges 11<a>, 13 formed on the shaft or on the hub whereby the plates are driven, and the plates are secured in position by means of washers 17, having holes engaging the projecting pins of the plates adjacent to the flanges and nuts 18. In order to prevent creeping of the polishing-ring, the outer annular portions of the plates have ribs 14a, 15<a>; or ribs 14b, 15b or screws passing through threaded openings may be employed in place of, or in addition to, the ribs 14a, 15a. When more than two rolls are to be mounted on one shaft, intermediate spacing sleeves are provided having flanges thereon with holes engaged by the locking-pins. The clamping-plates may be stamped from sheet metal, the locking-lugs being struck out from the metal. To ensure that the edges of the seating for the ring shall come together, the locking portions of the plates may be dished outwards; this feature, as incorporated in cast-metal clamping-rings, is shown in Fig. 8, in which additional pins and holes 14<c1>, 15<c1> are also shown. Radiating teeth or striations may be employed for interlocking in place of the pins and holes.
Patent GB-444742-A (GB)
Title: Improvements in or relating to air-screws
IPC: B64C11/04
Filed: 1935-09-10
Abstract: 444,742. Screw propellers. GRUMPELT PROPELLERBAU GES., Flughafen, Hamburg, Germany. Sept. 10, 1935, No. 25131. Convention date, July 16. [Class 114] An adjustable non-metallic air-screw blade 2 is provided at its root 1 with a sprayed on metal coating 3 and also with a coating 4 at the base. The root may be provided with indentations 5, 6 and 7 into which metal is sprayed and forms an anchorage for the outer sheath. The indentations may take the form of radial wedges or keys, or be constituted by holes.
Patent GB-761755-A (GB)
Title: Improvements in the production of fully hydrogenated polynuclear aromatic hydrocarbons
Inventor: MCNEIL DONALD
IPC: C07C5/10
Filed: 1952-10-08
Abstract: Polynuclear aromatic hydrocarbons or partially hydrogenated derivatives are hydrogenated to fully hydrogenated derivatives by passing entirely in the vapour phase at 20-100 atmos. partial hydrogen pressure and 200-500 DEG  C. over a catalyst consisting of one or more Group 8 metals, e.g. nickel, cobalt or platinum, either alone or on a carrier and with or without small amounts of promoters such as thoria.  The feed-stock, substantially free from sulphur, is passed with hydrogen or gases containing it sufficient to ensure a vapour phase and preferably in considerable excess which may be recycled.  The feed may consist of mixtures of aromatic and hydroaromatic hydrocarbons which may also contain paraffins, olefins and naphthenes.  In examples: (1) hot pressed naphthalene is preheated with hydrogen to 250 DEG  C. and reacted at 300 DEG  C. and 32 atmos. over nickel on kieselguhr to give decahydronaphthalene; (2) tetralin is similarly hydrogenated; (3) a coal tar boiling from 200-280 DEG  C. and free of tar acids and bases which comprises mainly naphthalene and homologues is hydrogenated under similar conditions; (4) a 300-380 DEG  C. coal tar, mainly anthracene, phenanthrene and higher, is hydrogenated in two stages, first at 300-330 DEG  C. and 32 atmos. and then at 360-370 DEG  C. and 55 atmos.
Patent GB-704451-A (GB)
Title: Improvements in or relating to methods of applying thin layers of metal on insulating surfaces
IPC: H01J29/28
Filed: 1949-09-30
Abstract: 704,451. Coating with metals. GENERAL ELECTRIC CO., Ltd., DUDDING, R. W., MACKENZIE, R. B., and WELCH, E. E. Dec. 11, 1950 [Sept. 30, 1949], No. 25224/49. Class 62 (2) [Also in Group XXXVI] The thickness of a layer of metal on an insulating surface, e.g. aluminium on the screen 23 of a cathode ray tube 22 is determined by its effect on the inductance of a coil in a measuring head 1 placed near to the surface. The metal is applied by evaporation in the evacuated enclosure 22, the charge of metal 27 being placed inside a heater filament 26, and the charge in inductance in the coil of the measuring head 1, which is placed on the end of the screen, with progressive increase in thickness of deposit, is used to control the heater 26, and to stop it at a predetermined value of inductance, corresponding to a predetermined thickness of deposit.
Patent GB-315138-A (GB)
Title: Improvements in or relating to wooden paving blocks
IPC: E01C5/14
Filed: 1928-09-03
Abstract: 315,138. Roper, V. N. Sept. 3, 1928. Paving-blocks. - A wooden paving block is provided on one or both sides and one or both ends with one or more recesses 2, each communicating by means of a rabbet 1, Fig. 1, or groove 3, Fig. 3, with the tread surface of the block. The blocks are arranged so that the recesses 2 of adjacent blocks coincide and form cavities for the reception of tar, pitch &c. The grooves 3 may be vertically or diagonally disposed, and may have parallel sides or be of V- shaped formation. The grooves and recesses may be undercut.
Patent GB-1087748-A (GB)
Title: Accounting apparatus
IPC: G06Q40/00
Filed: 1966-06-07
Abstract: 1,087,748. Accounting apparatus; printers. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 7, 1966 [June 30, 1965], No. 25233/66. Headings G4A and G4H. In accounting apparatus, printing means moves relative to a platen in synchronism with movement of a first transducer relative to a storage medium and independently of movement of a second transducer relative to the storage medium. A " golf-ball " printing head in a typewriter can move along the platen as a first transducer moves along a magnetic drum (parallel to its axis), by virtue of a cable connecting them. A keyboard with alphanumeric, numeric and control sections is provided. The circumference of most of the length of the drum is divided into four levels (viz. sectors), each level being divided (sector-wise, not axially) into five pairs of axial lines. Four of the pairs each consist of a format line (for holding variable and constant data to be printed) and a programme line (for controlling the apparatus). Typically, successive lines of a document to be printed have successive lines of a particular level. The fifth pair of lines consists of two so-called position registers for holding accumulated totals. The first transducer, and a second transducer movable independently thereof, can both be moved parallel to the drum axis across whichever level is in position. A four-position level button on the keyboard selects a level by positioning a third transducer axially of the drum to pick up recorded clock pulses, clock pulses being recorded in different axial positions adjacent different levels. A four-position mode button on the keyboard similarly selects one of the first four pairs of lines (the fifth pair being also selected whatever the button setting). Circumferential tracks, each with an associated transducer, provide a bit clock, a one-character register, a two-character register, a sum register, a crossfoot register and an entry register. The first and second transducers are separated circumferentially by one level, but as noted, need not be in corresponding axial positions. When they are, this is indicated. Communication between the various parts of the drum, the printing arrangements, the keyboard (used for all entry), and an arithmetic unit (not described) are possible.
Patent GB-443960-A (GB)
Title: Improvements in or relating to filtering apparatus
IPC: B01D25/21
Filed: 1934-09-01
Abstract: 443,960. Filter - presses. BRITISH CELANESE, Ltd., 22, Hanover Square, London, and KINSELLA, E., and ADDEY, C. W., c/o British Celanese, Ltd., Spondon, near Derby. Sept. 1, 1934, No. 25235. [Class 46] Each filter-plate 15 comprises two perforated plates 22, Fig. 6, which rest against a shoulder 21 of the outer frame and are spaced apart and supported by metal strips 23 standing edgewise between the plates and curved to form passages converging towards apertures 13, Fig. 3, which together form the filtrate outlet passages. Strips 23 secured to one plate alternate with strips secured to the other plate. The edges of the strip in contact with the plates may be notched. Frames 10, Fig. 1, which are arranged between each pair of filter-plates have a central cavity 14 with a cross-piece 17 which gives support to the perforated plates 22 but allows free distribution of the liquid to be filtered from the supply passage formed by apertures 12 in the frames and plates. Curved arms 19 on the piece 17 assist in spreading the liquid. The plates and frames may be made of galvanized sheet steel.
Patent GB-948002-A (GB)
Title: Improvements in or relating to the preparation of semiconductor materials
Inventor: HULME KENNETH FRASER
IPC: C30B13/34
Filed: 1959-07-23
Abstract: A semi-conductor material is purified by zone-melting under such conditions that a single crystal is formed but the formation of a (1,1,1)-facet in the resolidifying surface is prevented. Indium antimonide may be thereby purified from tellurium.  A seed having its (1,1,1)-direction orientated obliquely to the direction of growth may be employed.  The seed may be orientated in any direction provided that the growing solid presents a concave shape to the liquid at the solid-liquid interface.  Specification 853,975 is referred to.
Patent GB-631506-A (GB)
Title: Production of organosilicon compounds
IPC: C07F7/08
Filed: 1947-09-16
Abstract: Organo siloxanes are obtained by reacting a chlorosiloxane with a compound of the formula RR1OM, wherein R represents a methyl radical, R1 represents a methyl or phenyl radical and M represents an alkali metal, whereby the chlorine atom is replaced with a triorgano-siloxy group.  In an example a polymer of the formula [(CH3)3SiO]3SiOSi[OSi(CH3)3]3 is obtained by reacting the sodium salt of trimethyl silanol with Cl3SiOSiCl3.ALSO:Organo silicon compounds of the general formula RR12OM, where R represents a methyl radical, R1 represents a methyl or phenyl radical and M represents an alkali metal are prepared by heating a reaction mixture of an alkali metal oxide, water and a compound of the general formula RR1Si-Alkoxy or RR12Si-O-SiR12R, wherein R and R1 have the above significance, and removing water from the reaction mixture, e.g. by distillation.  A lower aliphatic alcohol having a boiling point below that of water and which is soluble in water may be included in the reaction mixture and bath, the alcohol and water are subsequently removed by distillation.  The alkali metal oxide and water may be replaced with alkali metal hydroxide.  In examples, the sodium and potassium salts of trimethyl silanol and methyldiphenyl silanol are prepared and in addition the double salts of methyl alcohol and sodium hydroxide with the sodium salt of trimethyl silonal and the double salt of potassium hydroxide and the potassium salt of trimethyl silanol are are obtained.  The products of the invention may be reacted with silicon halides, e.g. silicon tetrachloride, mono-organo silicon trichloride, diorganosilicon dichloride or triorgano silicon chloride to replace each halogen atom with the triorganosiloxy group of the salt.  The products of the invention may be similarly reacted with chlorosiloxanes, e.g. dichlorotetramethyldisiloxane may be reacted with an alkali metal salt of trimethyl silanol to give decamethyltetrasiloxane.  In the examples a mixture of SiCl4 and Cl3Si-O-SiCl3 is reacted with trimethyl silanol sodium salt to give Si[OSi(CH3)3]4 and [(CH3)3Si-O-Si-[OSi(CH3)3]3, methyl silicon chloride is reacted with the sodium salt of trimethyl silanol to give CH3Si[OSi(CH3)3]3, diphenyldimethyl silanol sodium salt is reacted with trimethyl silicon chloride to give monophenylpentamethyldisilioxane.
Patent GB-876750-A (GB)
Title: Moisture-proof semi-conductors
IPC: F24C15/18
Filed: 1958-08-07
Abstract: 876,750. Semi-conductor devices. SIEMENS & HALSKE A.G. Aug. 7, 1958 [Aug. 7, 1957], No. 25357/58. Drawings to Specification. Class 37. At least part of the surface of a moisture proof semi-conductor substance containing a P-N junction is coated with an additive capable on interaction with the substance in such a way as to absorb water present on the surface and produce a corresponding amount of oxygen which at least partially oxides the semi-conductor substance. A mixture of substances forming a Redox system is applied to the surface the germanium and germanium oxide forming a second Redox system. The chemical reactions are such that at the surface of the semi-conductor the pH2O is considerably diminished and the pO2 is maintained constant. Examples of such Redox systems are p - quinone/hydroquinone, thymoquinone/thymohydroquinone, diphenylamine/diphenylbenzidine, indigo/indole, disulphide/sulphydryl/ and tri-arylmethane and they may be applied to the semi-conductor by sprinkling or alloying with the powdered substance or by coating the semi-conductor with liquid substance or by vaporizing on to the surface of the semiconductor or by applying the system in dissolved form and possibly afterwards vaporizing the solvent or by mixing the systems with or chemically incorporating the systems in a varnish applied to the semi-conductor for mechanical protection. The varnish in the later case may have formaldehyde/phenol resin base or a silicone resin base. The Specification discloses the application of the method to a transistor comprising two indium pellets alloyed to a germanium base. Reference has been directed by the Comptroller to Specification 760,563.
Patent GB-335340-A (GB)
Title: Improvements in and relating to electrical sound reproducing and recording instruments and apparatus
IPC: H04R3/04
Filed: 1929-08-22
Abstract: 335,340. Brantom, H., Williams, H. G. Bawtree-, Bitton, E. A., and Storry, Ltd., H. A. Aug. 22, 1929. Drawings to Specification. Magnetic instruments. - An electromagnetic pick-up, microphone, recorder, or loud-speaker is provided with two or more separate and identical windings adapted to be connected in separate circuits, and to have equal and identical voltages induced in them, or magnetic fluxes produced by them, as the case may be. The coils may be wound simultaneously with two wires and are associated with two amplifiers in parallel or pushpull relationship which preferably feed a single two-coil loud-speaker. The pick-up described is otherwise of normal construction having an armature pivoted between two U-shaped pole-pieces surrounding the coils, and damped at its upper end by rubber blocks.
Patent GB-613032-A (GB)
Title: Welded constructions
IPC: F16M5/00
Filed: 1945-10-02
Abstract: 613,032. Making machine framings. HEMMINGSEN, T. V. Oct. 2, 1945, No. 25605. Convention date, Jan. 8, 1944. [Classes 83 (ii) and 83 (iv)] Uniting by fusion.-A welded joint for uniting one plate of a machine to a clamping plate by means of which the first plate is secured by clamping to a third element has the first plate welded to the clamping plate on both sides of its centre line in such a manner that the plane of resistance of the first plate intersects the clamping plate between the welded points and bending stresses on the first plate are thus practically eliminated. The web plate or wall of the framing of a combustion engine may thus be welded to the clamping flange to which the bed plate is secured. The web plate 1 is welded to the clamping flange 2 by a pair of connecting parts 3, 4 welded along their lower edges to the flange 2 at both sides of the longitudinal central plane of the latter. The plane of resistance of the plate b-b intersects the longitudinal central plane a-a of the flange between the welds within the clamping element proper or within the distance c below the clamping surface corresponding to the height of the clamping element. The parts 3, 4 are arranged in planes parallel to the longitudinal axis of the flange 2. The flange contains plain or threaded holes for clamping bolts or studs arranged either in the central axis of the flange or parallel thereto. The part 3 may be formed by bending the plate 1 or may be welded thereto either as a continuous strip or as a number of spaced pieces. The part 4 may be a continuous part or a series of spaced pieces. In another form the plate 1 may be formed with slits, Fig. 3, and the parts 7 bent to opposite sides of the plate. In a further form, the connecting part or parts may consist of V-sections 10, Fig. 7, or curved sections. In another form, the piece 1 and also the strip 9 Fig. 11, may be provided with slots 12 or holes for manipulating the clamping bolts &c. The plate 1 may extend to the flange 2, Fig. 10, and be welded thereto, together with the pieces 9. The plate 1 may be at right angles to the flange. The pieces 6, Fig. 12, or 10, Fig. 7, may be tapered with their largest width at the upper end, or may be shaped as shown in Fig. 14, the upper part being wedge shaped, Fig. 15.
Patent GB-1365044-A (GB)
Title: Electrical capacitors
IPC: H01G2/14
Filed: 1973-05-30
Abstract: 1365044 Capacitors PYE Ltd 30 May 1973 25625/73 Heading H1M Capacitor leads 12, 13 are connected to terminals 6 through spring clips 9, 10 connected with the leads 7 of discharge resistor 8 connected across the terminals, whereby when corrugation 4 is stretched out an increase in pressure within the hermetically sealed housing 1, at least one spring clip becomes separated from a resistor lead to disconnect the capacitor. (For Figure see next page.)