baber/WOPTO huggingface dataset:
Patent GB-562934-A (GB)
Title: Improved methods of making porous metal plates and apparatus therefor
IPC: B22F3/11
Filed: 1943-03-13
Abstract: 562,934. Obtaining coherent masses from powdered materials. GENERAL MOTORS CORPORATION. March 13, 1943, No. 4109. Convention date, April 30, 1942. [Class 82 (i)] [Also in Groups V and XXII] Porous plates are produced by sintering metal powders, the sinteripg being effected in a mould in which the powder is loosely packed by centrifugal force. As applied to the production of a circular plate of corrugated form in crosssection for use as a filtering element, a two-part mould 28, 30 interfitting at 32 and, if desired, further registered by dowels 33 is mounted for rotation by an electric motor 40, powder being supplied at 34 from a funnel 42. Speeds of from 100 to 1750 r.p.m. are suitable. Higher speeds of the order of 10,000 r.p.m. may be adopted to yield plates when porosity gradually increases towards the centre and flat discs may be made. The mould may be made from graphite, oxidised chrome steel, or from steel dusted with powdered graphite or alundum. The mould may be subjected to axial vibration to assist in distributing the powder, and the vibration may be produced by a solenoid or by a cam.
Patent GB-524831-A (GB)
Title: Improvements in or relating to methods of and apparatus for laying submarine cables
IPC: E02F5/10
Filed: 1939-02-08
Abstract: 524,831. Laying cables. BRITISH WESTERN UNION, Ltd. Feb. 8, 1939, No. 4155. Convention date, Feb. 23, 1938. [Class 36] [Also in Group I] A submarine cable is so laid in the ocean bed that substantially no tension exists in the cable behind the laying device. The laying device comprises endless bands 18 formed of articulated treads 19 running over sprockets 16, 16<1>, 17, the latter driving a feed roller 32 through mechanism 22 ... 29. Coacting with the roller 32 is a roller 34 mounted on an arm 33 pivoted at 31b and connected by links 36, 37 and a spring 35 to an arm 38 pivoted at 39 and carrying another roller 46. Cable C is fed through a mouth 55, in which is mounted a roller 56, between the rollers 32, 34, through a trunkway 58 and beneath the roller 46 into the trench X formed by the ploughshare 51. When the cable reaching the device is under tension, the roller 46 is lifted causing depression of the roller 34 to snub the cable. Specifications. 52,141 and 503,326 are referred to.
Patent GB-229343-A (GB)
Title: Improvements in rotor mountings for steam and gas turbines or for similar rotary machines
IPC: F01D5/02
Filed: 1925-02-14
Abstract: 229,343. Akt.-Ges. der Maschinenfabriken Escher, Wyss, et Cie. Feb. 16, 1924, [Convention date]. Arrangement of bearings.-The axial position of the rotor of a turbine, centrifugal compressor, dynamo-electric or other machine is maintained constant by means of an anchoring shaft 3 which is not subject to temperature changes. The shaft carries at one end a disc 4 running in a thrust bearing 5 and is secured at the other end to the rotor. A transverse screw 6 may be used or the shaft end may be clamped between a seat in the rotor and the coned end of a sleeve surrounding the shaft and screwed into the rotor. In the turbine shown in Fig. 3 having a disc 13 and two drums 12, 14 the anchoring shaft 3 is secured bv a flange upon it and an end nut. Cooling liquid may be circulated in the hollow of the rotor shaft.
Patent GB-1489002-A (GB)
Title: Method of severing useful lengths interconnected through small fillets in a sheet of paper paperboard cardboard or the like and apparatus for carrying out such a method
IPC: B26F3/00
Filed: 1975-01-31
Abstract: 1489002 Severing by tearing WUPAMASCHINENFABRIK GmbH & CO KG 31 Jan 1975 [1 Feb 1974] 4223/75 Heading B4B Apparatus for separating lengths of material, e.g. paper, connected together at lines of weakness, comprises a pressure means 18 having a pair of contact surfaces 20 which are arranged to engage the material one at each side of the line of weakness, such that when downward pressure is applied to the apparatus, the contact surfaces grip the material and also move away from each other so as to separate the lengths of material. As shown in Fig. 1, the contact surfaces 20, e.g. of rubber are provided on levers 18 each pivotally mounted on a respective pin 16 fixed in a U-section bracket 12; the contact surfaces may be in the form of suction cups. The levers are formed with slots 32 and loaded by a torsion spring. In use, when the bracket is moved downwardly by a press, the contact surfaces abut the material and continued pressure causes the levers to move apart against the action of the spring to sever the material. In modifications, Figs. 3 and 4 (not shown), different configuration of levers are used, together with a compression spring and leaf spring respectively; the two levers may be replaced by an integral leaf spring provided with contact surfaces, Fig. 2 (not shown). Alternatively, a single lever (148<SP>1</SP>), Fig. 8 (not shown), may be pivotally mounted on a bracket (142) which is provided with a contact surface 150; a secondary force "t" is arranged to act on a surface (160) of the lever. The contact surface may be provided on a separate member (170), Fig. 9 (not shown), pivoted on the lever. In the modification shown in Fig. 7, the contact surfaces 120 are provided on levers 118 moved outwardly by means of a toggle mechanism 127, 130.
Patent GB-933650-A (GB)
Title: Method for transferring liquefied fluorocarbon gases
Inventor: HALLIWELL RONALD H
IPC: F17D1/08
Filed: 1961-02-03
Abstract: 933,650. Forcing liquids by liquid pressure. E. I. DU PONT DE NEMOURS & CO. Feb. 3, 1961 [March 21, 1960], No. 4244/61. Class 102(2). A method of transferring a liquefied fluorinated hydrocarbon, e.g. tetrafluoroethylene comprises displacing said hydrocarbon with an aqueous solution of zinc chloride, bromide or iodide having a density greater and freezing point lower than the density and temperature of said hydrocarbon when it is transferred. The aqueous solution is pumped from a refrigerated storage vessel 20 to a refrigerated hydrocarbon-storage vessel 10 at a pressure maintained constant by a pressure regulator 16 controlling valves 17 and 18.
Patent GB-994824-A (GB)
Title: Electric insulated wires for forming coils
IPC: H01B13/14
Filed: 1962-02-05
Abstract: 994,824. Electric conductors. FURUKAWA DENKI KOGYO KABUSHIKI KAISHA. Feb. 5, 1962 [Feb. 9, 1961], No. 4278/62. Heading H1A. An insulated wire intended to be used subsequently for forming a coil has two insulation layers, the first a solvent resisting varnish and the second a mixture of a polyvinyl acetal resin and a thermosetting resin. The second layer is applied to the coated wire at a temperature above which the compound solidifies but less than that at which it is fully solidified. Consequently, when the wire with its solid coating is formed into a coil, it may be dipped into an organic solvent and heated at 80 to 100 C. when it swells rapidly so that the whole coil sticks tightly together. The temperature is maintained long enough to drive off the solvent. The first insulating layer may be a polyester, polyurethane acrylonitrile or an epoxy resin. The polyvinyl acetal resin may be vinyl formal and the thermosetting resin may be a phenol, epoxy, melamine, silicon, xylene, furan or polyurethane resin.
Patent GB-247609-A (GB)
Title: Improvements in welding machines
IPC: B23K5/06
Filed: 1926-02-15
Abstract: 247,609. Mauser, A. Feb. 13, 1025, [Convention date]. Uniting by fusion.-In a blowpipe machine for weeding the longitudinal seams of barrels, drums, pails &c., the burner is traversed by a spindle along a cantilever arm over a stationary work piece supported by a second cantilever arm together with a presser block which presses the edges to be welded on to a stationary abutment or on to a second longitudinally traversed presser block. The work 77 is placed on a curved bed plate 60, which is separated by insulation 62 from and secured to an arm 13 bolted to a casting 11. The bed plate has a recess 61 to permit the free flowing of the fused metal and is cooled by water circulated through passages in the arm by a pump driven from the shaft of the driving motor 31. The work is is clamped on the bed plate with the seam 78, Fig. 4, slightly divergent so as to allow for expansion during welding, by a pair of screw-adjusted clamps 66, 65, which are adjusted towards each other by a screw 67 so as to vary the width of the gap and are carried by a bracket 63 which may be moved by hand along guides on the arm and locked by a screw 64. A pointer 71 locates the work centrally of the recess. A universally adjustable burner 21 with a jacket 53 cooled by circulation of water from the pump through pipes 54, 55 is mounted on a carriage 14 together with a vertically adjustable presser block having an insulated head 74. The head has a slot 76 to direct the outer envelope of the flame in advance of the main flame so as to preheat the work. The carriage is traversed by a screw 28 on an arm 12 which is offset from the arm 13. The screw is rotated from the motor by a belt which through cone pulleys drives a shaft 30 having a bevel gear 34 in mesh with bevel gears 35, 36 carrying spur gears 37, 38. The spur gears mesh respectively with gears 39, 40 either of which may be clutched to the shaft 41 by a clutch 42 operated by a lever 49 connected by a rod 49<a> to a bellcrank lever 50. The shaft 41 is connected by bevel gear 43, 44, 46, 47 to the screw shaft. Adjustable dogs 51, 52 on the rod 49a are used for reversing the carriage automatically at the end of each stroke. The reverse traverse of the cariage is effected at a greater speed than the forward traverse. The work, instead of being supported throughout its entire length on the bed plate, may be supported towards one end by a curved stationary abutment 85, Fig. 7, mounted in dovetail guides on the arm 13a, and also by a presser block 82 mounted on a carriage 80 traversed by a screw 81 on the shaft 41. The upper presser block may be formed at its sides with shields 90, Fig. 11, or may have sheet metal shields attached thereto for directing the flame to effect the preheating.
Patent GB-939065-A (GB)
Title: Improvements in or relating to stereophonic pick-up devices
IPC: H04R17/08
Filed: 1960-02-08
Abstract: 939,065. Stereophonic pick-ups. ELECTROACUSTIC G.m.b.H. Feb. 8, 1960 [Feb. 7, 1959], No. 4359/60. Class 40 (4). A stereophonic pick-up device includes two piezo-electric " twisters " 1, 2, Fig. 1, coupled by a resilient coupling member 5 to a stylus arm 13, the resilient coupling member 5 being carried by a pivot 7 whose axis lies below the line of intersection of the main planes 8, 9 of the " twisters " 1, 2 and closer to said line of intersection than to the stylus arm 13. The line of intersection of the main planes 8, 9, the axis of the pivot 7 and the axis of the stylus arm 13 all lie in a plane of symmetry of the pick-up device. The " twisters " 1, 2 are held flexibly by one end in rubber bushes 4 located in a housing 3. The lower arms 10, 11 of the coupling member 5 are relatively resistant to compression in the longitudinal direction but are relatively flexibly in a direction perpendicular to the longitudinal direction.
Patent GB-764595-A (GB)
Title: Improvements in or relating to thread clamping devices for weft replenishing looms
IPC: D03D49/70
Filed: 1954-02-15
Abstract: 764,595. Clamping and cutting weft in looms. GLEDHILL, W. V. May 16, 1955 [Feb. 15, 1954], No. 4362/54. Class 142 (2). A weft clamp, combined with a weft cutter, comprises a pivoted blade 17 rocked by a rod 19 connected to the weft replenishing mechanism and a spring pressed blade 15, the blades having serrations 22, 23 to grip the weft. One edge of the blade 17 is sharpened and cooperates with a fixed cutter blade 13 mounted on a bracket 12. The blade 17 tapers towards its pivot 25 and its serrations (on the non- cutting edge) may be through the corner of its top edge. The cutting blade 13 is arranged higher than the clamping jaw 15 to ensure that the weft is clamped prior to being cut.
Patent GB-311453-A (GB)
Title: Improvements in garment hanging fittings for wardrobe trunks
IPC: A45C13/03
Filed: 1928-02-11
Abstract: 311,453. Wells, S. C. Feb. 11, 1928. Garment racks.-In a garment rack, particularly for wardrobe trunks, of the type comprising a detachable swinging-arm provided with a pair of parallel arms projecting therefrom to receive the garment suspenders, the swinging arm 5 consists of a strip or plate of sheet metal, plywood &c. and is provided with a pivot pin 7 to engage a pair of apertures in the horizontal portions of a bracket 10 secured to the trunk, the arrangement being such that, to mount the rack within the trunk &c. the upper end of the pin is first engaged with the upper aperture, and the arm lifted upwards to bring the lower end of the pin in a position to be dropped in the lower aperture. The lower end of the pin may have a reduced part to engage the aperture. The arm which may be ribbed, corrugated &c. for strength, is provided at its free end with a hole 17 to engage hook &c. 18 to hold the rack within the trunk. The parallel arms 22 are formed by bending a sheet metal blank having lugs 24, by which the arms can be secured to the main arm 5, and a lug 26 to retain the suspenders. The upper lugs 24 may be extended at 25 and provided with holes by which the rack may be suspended when removed from the trunk.
Patent GB-233460-A (GB)
Title: Improvements relating to electrical switch fuses
IPC: H01H9/10
Filed: 1924-02-21
Abstract: 233,460. Midland Electric Manufacturing Co., Ltd., and Barber, W. L. Feb. 21, 1924. Switches, quick-break; bases. - In a switch fuse of the type in which V-shaped movable bridging contacts 16 carried by a rotatable switch shaft are adapted to engage fixed contacts in the form of clips 15 and blocks 15<a>, 15b, the switch contacts together with the fuse contacts 11, 13 are mounted together on a common insulating base 10. Recesses 10<a> - - 10<e> are provided in the block 10 to accommodate these contacts and one set of fuse contacts 13 is connected to the blocks 15b of a set of the switch contacts. Arcing recesses 14 for the fuses are provided in the base 10 between the fuse contacts 11, 13.
Patent GB-459751-A (GB)
Title: Improvements in filling spouts for use in connection with valve bags
IPC: B65B1/18
Filed: 1936-02-14
Abstract: 459,751. Filling-machines. DUBOIS, A., 12<bis>, Rue des Marronniers, Paris. Feb. 14, 1936, No. 4476. Convention date, Feb. 15, 1935. [Class 94 (i)] A spout for filling valve bags comprises a cylindrical part 1 merging into a part 2 becoming substantially flat. The width l at the flat end is such that 21=#d. In the other crosssections shown in Fig. 3, the sum of the length of the arc, and of the chord corresponding to the cut-away opening, is equal to #d. The extreme edge 3 may be slightly diminished in width and may be slightly inwardly inclined. A series of ports 4 are provided for the projection of an adhesive into the valve for closing. The adhesive is fed to the ports through a small pipe running along the spout. The shape of the spout facilitates its introduction into a valve, and its withdrawal leaves the valve flattened so that the weight of the contents effects a perfect closure. The spout may be used for emptying the bags. Specification 467,419 is referred to. The Specification as open to inspection under Sect. 91 comprises also a description of a modification in which the spout is made of longitudinal flaps hinged together to form a jointed parallelogram, which may be flattened down. This subject-matter does not appear in the Specification as accepted.
Patent GB-567093-A (GB)
Title: Preparation of metallic oxide pigments
IPC: C01F7/302
Filed: 1942-04-03
Abstract: 567,093. Metallic oxide pigments. PITTSBURGH PLATE GLASS CO. April 3, 1942, No. 4501. Convention date, April 25, 1941. Drawings to Specification. [Classes 1 (ii), 1 (iii) and 95] The process described and claimed in Specification 535,214, namely the production of a finely-divided titanium oxide by reacting titanium halide vapour with oxygen out of contact with hot surfaces to minimize crystal formation, is applied to the production of other oxides, e.g. of aluminium, zinc, antimony, zirconium, chromium, cobalt, beryllium, cadmium, molybdenum, nickel and vanadium, and mixtures of oxides formed from halides of such metals with metallic sulphides or sulphates or other salts or metals or oxides. Decomposition temperatures of 1200-2200 F. are preferably used. Examples specify the production of oxides from vapours of aluminium chloride, zirconium tetrafluoride and of chromic chloride. The oxides are separated from the halogencontaining gases in a suitable filter, whilst the temperature of the gases remains above 250 C., and adsorbed halogen is removed from the collected oxides by introduction of air, oxygen, or inert gas. Calcination of the oxides at 400-750 C. may be effected in the filter chamber prior to their removal, as by passing in air or inert gas preheated to 750 C. The Specification as open to inspection under Sect. 91 comprises also reference to the production of pigment mixtures which include titanium dioxide and may contain as little as 0.001 per cent of other oxides, and reference to the production of silicon and boron oxides. It refers also to passing the halide and oxygen or air in opposed directions into the reaction chamber, and withdrawing the products along the inlet for the halide. This subject-matter does not appear in the Specification as accepted.
Patent GB-645157-A (GB)
Title: Improvements in or relating to the production of phosphate coatings on aluminium andaluminium alloys
IPC: C23C22/36
Filed: 1948-02-16
Abstract: Corrosion-resistant, paint-holding coatings are formed on aluminium or alloys thereof by subjecting the surface of the metal to the action of a hot aqueous solution containing a dihydrogen phosphate, a complex fluoride and an oxidizing agent.  The latter may be a nitrate, nitrite, iodate, periodate, peroxide, bromate, quinone, chlorate, perchlorate, sulphite or permanganate or a mixture thereof; the complex fluoride may be a fluosilicate, fluoborate, fluotitanate, fluostannate, fluozirconate or fluovanadate; and the dihydrogen phosphate may be that of zinc, barium, calcium, chromium, ammonium, magnesium, strontium, nickel, cobalt, sodium or aluminium: the dihydrogen phosphates of barium, strontium, nickel and aluminium being formed in the solution by the reaction of phosphoric acid with barium carbonate, strontium carbonate, nickel hydroxide and aluminium respectively.  The coating may be rinsed in a solution of chromic acid or a dichromate or may be impregnated with oil, graphite or wax. Specification 273,956, [Class 82(ii)], is referred to.
Patent GB-756490-A (GB)
Title: Model railway vehicle buffers
IPC: A63H19/16
Filed: 1954-02-16
Abstract: 756,490. Model railway vehicles. PRITCHARD, S. C. Feb. 16, 1955 [Feb. 16, 1954], No. 4523/54. Class 132(3) A spring buffer assembly for a model railway vehicle includes a beam 1, buffer bodies 2, support boss 9 and strip-like springs 11 all integrally moulded of a thermo-plastic material such as P.V.C. or nylon. Each buffer comprises a shank 4 slidable in a hole 3 and having a reduced portion 8 in which engages an annular or part-annular ridge 7, limited movement of each buffer thus being provided for. The end of the shank 4 may be chamfered or tapered to allow the end to be forced past the ridge 7 when assembling the buffer in its body 2. The buffer shanks bear on the moulded springs 11 and a hole 10 in the boss 9 permits an automatic coupling hook as described in Specification 605,283 to be attached to the assembly. A chain type coupling may be connected to a moulded hook 12.
Patent GB-1095124-A (GB)
Title: Bipiperidyl derivatives and processes for their preparation
Inventor: ALLPORT DENNIS CHARLTON
IPC: C07D211/84
Filed: 1965-02-10
Abstract: The invention comprises N,N1-dimethyl-4,41-dimethyl - 4,41 - bipiperidyl and N,N1-dimethyl-3,31 -dimethyl-4,41-bipiperidyl.  The invention also comprises a process for the production of an N,N1 - disubstituted - 4,41 - bipiperidyl which comprises hydrogenating an N,N1-disubstituted - tetrahydro - 4,41 - bipyridyl wherein the substituents on the nitrogen atom are connected to the nitrogen atom by a nonacyl carbon atom.  Any suitable hydrogenation process may be employed and the process may be effected in a liquid solvent or diluent, suitably at 20 DEG  to 200 DEG  C. at atmospheric or super-atmospheric pressure.  A catalyst may be present, e.g. a "platinum metal" (i.e. platinum, palladium, rhodium, ruthenium, osmium or iridium) or an oxide thereof and it may be used in finely divided form or supported on a carrier. The catalyst is generally employed in amounts of up to 5% of the weight of the material to be hydrogenated.  The novel compounds of the invention may be prepared by the process claimed.
Patent GB-672895-A (GB)
Title: Improvements in and relating to television cameras
IPC: H04N5/232
Filed: 1949-02-21
Abstract: 672,895. Electric control systems. BRITISH BROADCASTING CORPORATION, and BLISS, J. L. Feb. 21, 1950. [Feb. 21, 1949] No. 4726/49. Class 40 (i). The view-finder adjustment and the camera lens focussing adjustment of a television camera are coupled by a servo-system whereby adjustment of the view-finder or the camera lens unbalances a bridge controlling the servomotor which adjusts the controlled member in correspondence with the controlling member as the bridge is rebalanced. As shown, the view-finder focussing device 12 moves the slider of a potentiometer 24. earth potential being applied to this slider through a potentiometer . 30 connected across a low voltage earthed centre-tap secondary 29 of a transformer 13. The identical secondaries 15, 22 of this transformer are connected to substantially identical circuits, the potentiometer 17 being mechanically coupled to the motor 32 which adjusts the camera focussing device 11. Initially, with the wiper of potentiometer 24 at earth potential the positions of the interconnected wipers of potentiometers 16, 23 are adjusted so that no voltage exists between the wipers of potentiometers 16, 17 when the camera is focussed at infinity and no voltage exists between the wipers of potentiometers 23, 24 when the view-finder is focussed at infinity. Any subsequent adjustment of the view-finder focussing device 12 will then produce an unbalance voltage which is applied to the amplifier 31 and in known manner drives the motor 32 in the corrective sense to bring the camera focussing device 11 into correspondence with the view-finder focussing device 12 as voltage rebalance is effected. The generator 34 driven by the motor 32 injects a voltage proportional to motor speed into the amplifier input for anti-hunt purposes. The gear ratio between the view-finder and camera focussing device must be changed when the camera lens is changed for one of different focal length. This is effected by means of a six position switch 37 having two ganged wipers 21, 25 which provide six different ratios of the currents in the secondaries 15, 22 by switching resistors 18, 19, 20, 26, 27, 28 selectively into the circuits thereof. Alternatively, the gear ratio may be changed by using variable taps on the secondaries 15, 22. The potentiometers may be non-linear to give a non-linear coupling law of the members 11, 12 or they may be replaced by magslip devices acting as variable mutual inductances. The potentiometer 30 provides a fine remote control useful, e.g., for monitoring.