baber/WOPTO huggingface dataset:
Patent GB-394012-A (GB)
Title: Improvements in and relating to centrifugal apparatus such as fans, impellers and the like
IPC: F04D29/30
Filed: 1931-12-19
Abstract: 394,012. Centrifugal pumps. PARSONS & CO., Ltd., C. A. and DOWSON, R., Heaton Works, Newcastle-on-Tyne. Dec. 19, 1931, No. 35221. [Class 110 (i).] Impeller blades comprise members 6, 7 which are subject to tensional and compressional stresses respectively. These forces tend to neutralize one another and prevent the endplates 2 being forced apart. The members 6, 7 may be of catenary shape and formed integral with one another. They are secured to the endplates by welding them to a plate 9 which is riveted to the endplates 2 by a single or double line of rivets. A double line of welding 8, Fig. 11, may be used. When members 6, 7 are separate members, one or both ends are riveted to the endplates directly. Alternatively they may be welded to a plate 9, Fig. 16. The blade ends are closed either by cutting a V in the members and closing the ends or by a metal plug with a hemispherical end.
Patent GB-356044-A (GB)
Title: Improvements in or relating to wall plugs
IPC: F16B13/12
Filed: 1930-11-22
Abstract: 356,044. Screw sockets. BUDIE, E., 12, Kastanienallee, Potsdam, Germany.- (Assigness of Feldmar, A. B.; 5, Bozener Strasse, Sch÷neberg, Berlin.) Nov. 22, 1930, No. 35271. Convention date, Nov. 25, 1929. [Class 89 (i).] A wall plug is formed from a single metal stamping having arms formed with interlocking portions 7, 8. This is lined with soft metal or fibre having a central bore of square or other polygonal cross section.
Patent GB-798163-A (GB)
Title: Process for the production of ú´,ú´-diphenyldioxy silanes
IPC: C08G77/48
Filed: 1954-12-06
Abstract: The invention comprises o,o1-diphenyldioxy silanes containing the group <FORM:0798163/IV (a)/1> where the remaining valencies of the silicon atom may be satisfied with halogens, alkoxy or aroxy groups or another o,o1-diphenyldioxy group.  The diphenyl group in the above formula may be hydrocarbon-substituted, e.g. by saturated or unsaturated aliphatic groups.  The dihalogen derivatives are prepared by reacting a silicon tetrahalide with o,o1-diphenol or its hydrocarbon substituted derivative in equal molar proportions.  The di-alkoxy or di-phenoxy derivatives are prepared from the halogen compounds by reaction with the alcohol or phenol in a molar proportion of 1 : 2.  Highly polymeric substances are prepared by reacting the dihalogen compounds with dihydroxy compounds such as dihydroxy-benzene, dihydroxy - diphenyl - propane or dihydroxy-diphenyl-ether, to form polyesters which are chemically and thermally resistant and are useful for making insulating and impregnating lacquers, mouldings, foil insulations and switch oils. In the examples: (1) o,o1-diphenyldioxy dichloro silane is prepared from SiCl4 and o,o1-diphenol; some di-o-o1-diphenyldioxy silane is also obtained; (2) the product of (1) is reacted with resorcinol to give a resin which is soluble in benzene and xylene; (3) a highly viscous substance, soluble in benzene, is obtained by reacting the dihalogen compound with 4,41-dihydroxydiphenyl propane; (4) 3-allyl-2,21-diphenyldioxydichloro silane is prepared from the 3-allyl-2,21-diphenyl and SiCl4; (5) the 3-propyl derivative is similarly prepared; (6) the dihalogen compound is reacted with isobutanol to give o,o1-diphenyldioxy-diisobutoxy silane; (7) reaction of the dihalogen compound with o-hydroxy-diphenyl yields o,o1 - diphenyldioxy - di - (o - diphenyloxy) silane.
Patent GB-1110034-A (GB)
Title: Welding system
IPC: B23K9/073
Filed: 1965-08-18
Abstract: 1,110,034. Automatic control systems. ESSO RESEARCH & ENGINEERING CO. Aug. 18, 1965 [Oct. 8, 1964], No.35382/65. Heading G3R. [Also in Division B3] A method of welding together workpieces such as pipe-line lengths comprises: establishing a gap, preferably of uniform width, throughout the length of the weld; feeding a gas-shielded wire electrode at uniform speed into the gap; establishing an arc within the gap; and supplying a substantially constant current, varying by no more than 2% to the arc whilst permitting the applied voltage to vary within gated limits of no more than 10% to maintain an effective arc and uniform weld penetration. A suitable constant current circuit is described with reference to Fig. 3 (not shown), the exciting current of a welding generator being varied in dependence upon welding current variations by a control circuit including relays responsive to such variations.
Patent GB-1160704-A (GB)
Title: Torch Adjusting and Guiding Device
IPC: B23K7/10
Filed: 1966-08-08
Abstract: 1,160,704. Welding and cutting by fusion. MESSER GRIESHEIM G.m.b.H. 8 Aug., 1966 [11 Aug., 1965], No. 35456/66. Headings B3R and B3V. [Also in Division G3] The positioning of a welding or cutting arc or flame torch relative to the work is controlled in accordance with the pressure derived from one or more gas jet sensing devices. A welding or cutting torch 2, Fig. 1, is maintained at a constant spacing from the work 1 by a sensing device in the form of a nozzle 5 attached to the torch 2. The nozzle 5 is straight or curved away from the torch 2 and is fed with air, oxygen or shielding gas to produce a back pressure controlling an electric torch positioner or, as shown, a diaphragm 15 operative against the action of an adjustable spring 18 to direct a jet 17 towards one of a pair of outlets 19, 20 to position a piston 24, Fig. 2, carrying a manually adjustable pinion 31. The pinion 31 meshes with a rack 32 on a rod 4 mounting the torch 2. The sensing nozzle may co-act with a surface mounted on a pedestal having a roller or ball running on the workpiece. In a modification the sensing nozzle is directed on an edge of the workpiece to control the lateral positioning of the torch. Two sensing nozzles acting on the same diaphragm may be directed on to the edges of a welding gap to cause the torch to follow the gap. Alternatively, such nozzles are directed on to the bevels of a prepared weld seam.
Patent GB-940112-A (GB)
Title: Piezoelectric voltage source
IPC: F02P3/12
Filed: 1962-09-18
Abstract: 940,112. Piezo-electric generators. CLEVITE CORPORATION. Sept. 18, 1962 [Nov. 6, 1961], No. 35465/62. Heading H2A. A piezo-electric spark generator, e.g. for I.C. engines, consists of a ball or roller bearing, one race of which is distorted out of round so that on rotation, pressure is periodically applied at each revolution to the piezo-electric element. As shown in Fig. 1 the piezo-electric elements 13a, 13b, 13c, 13d are mounted in the inner race 3 of a bearing whose outer race 5 is supported in a carrier 9 of somewhat larger diameter and is distorted by an adjustable screw 11. Alternate piezo-electric elements are oppositely polarised, and since in operation they are oppositely stressed (i.e. in the position shown in Fig. 1, 13a and 13b are compressed and 13b and 13d are stretched) they feed a like voltage in parallel to the output terminal 22 and lead 25. Either inner or outer race may be rotated, or both may rotate in opposite directions. In a modification (Figs. 3 and 4, not shown) only two, oppositely disposed, elements are used. Alternatively (Fig. 5, not shown) the pressure from the distorted race is transmitted through radial plungers to a central rubber body, which in turn presses on an axially disposed piezoelectric element. As shown in Fig. 7, the inner race 3c<SP>1</SP> is distorted, this distortion being transmitted through rollers 7a<SP>1</SP> and outer race 5c<SP>1</SP> to a plunger 901 acting on a laterally disposed element, not shown.
Patent GB-392646-A (GB)
Title: Improved electrically operated gauge
IPC: G01F23/36
Filed: 1931-12-23
Abstract: 392,646. Electric signalling systems. PARR, G. W., Loampit Hill House, Lewisham, and BIRCHEEN ASSETS, Ltd., 2, Walbrook, both in London. Dec. 23, 1931, No. 35570. [Class 40 (i).] In a system in which movements are indicated at a distance by altering the relative distribution of current in the coils of a receiver, the receiver comprises three coils mounted parallel to the axis of an armature spindle and provided at one end with inwardly directed pole shoes locating the field in which the armature moves. As shown in Figs. 1 and 2 the three coils 1<1>, 2<1>, 3<1> of the receiver are mounted parallel to spindle 21 on which armature A is fixed, the spindle also carrying a pointer not shown. The coils are provided with inwardly directed pole shoes 17 having arcuate recesses 19 to provide the circular space in which A moves. The transmitter comprises three brushes, such as 31, symmetrically connected to resistance ring 25, the ring being electrically biassed at diametrically opposite points through 27, 28. The brushes are connected to the coils of the receiver. As the float 43 moves, spindle 28 rotates and the biased resistance 25 is turned to displace the field of the receiver, Figs. 1 and 2, and so the armature A to move the pointer to an appropriate position.
Patent GB-861200-A (GB)
Title: Hydrofining process
Inventor: DUVALL RONALD
IPC: C10G45/02
Filed: 1958-11-06
Abstract: <PICT:0861200/III/1> A process for hydrofining a liquid petroleum fraction, e.g. a gas oil, a marine diesel oil, or a tractor fuel oil, which comprises contacting the fraction with hydrogen at elevated temperatures and pressures in the presence of a catalyst such as cobalt molybdate, is characterized in that the temperature and/or pressure downstream of the reactor are reduced below the level of the temperature and/or pressure obtaining in the reactor so as to produce the desired proportion of liquid to vapour in the separator into which the reactants subsequently pass.  These proportions by volume are generally 0.5-30%, preferably 0.5-5%, of liquid and 99.5-70%, preferably 99.5-95% vapour; under these conditions most of the coloured impurities are present in the liquid fraction.  In the hydrofiner reactor the preferred conditions are as follows: treat gas rate 200-2,000 S.C.F./Bbl.; pressure 100-1,000 p.s.i.g.; temperature 450-725 DEG  F.  In the apparatus shown, oil and hydrogen are fed into hydrofiner 1, and the product passed by line 2, through pressure-reducing valve 12 to separator 3 where the liquid portion containing the colour bodies is removed.  The hydrofined product then passes through heat exchanger 5 to separator 6, where hydrogen is removed by line 7 and the product run off through line 8 to stripper 9, residual H2S being removed by line 10, and the product being finally recovered from line 11.
Patent GB-1116599-A (GB)
Title: Improvements in or relating to presses
Inventor: LONG FRANK CHARLES
IPC: B29C65/00
Filed: 1964-09-01
Abstract: 1,116,599. Cutting-out presses; seaming non-metallic sheet material. BRITISH UNITED SHOE MACHINERY CO. Ltd. 31 Aug., 1965 [1 Sept., 1964], No. 35663/64. Headings B4B and B5K. A press for performing cutting and welding operations on shoe parts of leather or thermoplastic material comprises a work support 10 for a workpiece consisting of two or more layers of material, a presser member 12 having a portion 24 supporting a welding portion 13 of a knife 14 and a portion 26 supporting a cutting and welding portion 15 of the knife, means for establishing a high frequency electric field between the support 10 and the knife 14, means for moving the two portions 24, 26 to a predetermined position above the support 10 to press the knife into engagement with at least an uppermost layer of the workpiece, means for arresting movement of the portions 24, 26 on reaching the predetermined position so that portions of the workpiece engaged by the knife may be welded to an underlying layer of the workpiece, and means for moving the portion 26, after the high frequency electric field has been established for a predetermined time, to press the knife portion 15 entirely through the workpiece. The electric field welds the layer or layers which have been penetrated to the next lower layer, and also weakens the material adjacent the weld so that surplus material may subsequently be removed whereby upstanding pattern pieces are welded on to the next layer of material. The portions 24, 26 of the presser member are moved to the predetermined position above the support 10 by means of a pneumatically-operated piston and cylinder device 48, 50 operatively connected to the portion 24, movement of the portion 24 being limited by means of an adjustable stop, which comprises a pair of wedge-shaped plates 56 interconnected by a rib portion mounted on a screw 68, positioned in the path of movement of portions 62 of a striker bar 64 which moves the portion 26 towards the support 10. The portion 26 is moved towards the support 10 independently of the portion 24, after the electric field has been established for a predetermined time, by means of an eccentric 110 operatively connected to a pivotally-mounted curved lever 114 carrying a block 118 which moves a block 72. The initial position of the block 72 is adjustable by means of a wedge-shaped member 66. Rotation of the eccentric 110 is initiated by operation of a pneumatic piston and cylinder device 100 the piston 102 of which swings a lever to operate a clutch whereby the shaft 94 is rotated. The portion 24 is provided with a pair of arms 27 interconnected by means of a housing 30 for an electric heater 34 for heating the knife. The support 10 is slidable from an inoperative position to an operative position and a lug 143 is provided to lock one of two operating buttons to prevent operation of the machine when the work support is not in operative position.
Patent GB-396998-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J17/56
Filed: 1932-12-16
Abstract: 396,998. Discharge apparatus. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.-(Assignees of Giard, E. A. ; N. 12th Street, Milwaukee, Wisconsin, U.S.A.) Dec. 16, 1932, No. 35694. Convention date, Dec. 19, 1931. [Class 39 (i).] In a,discharge tube containing gas or mercury vapour, the control electrode is divided into two compartments connected through a small opening, the cathode and anode being arranged one in each compartment. As shown, the control electrode, consisting of a cylinder 3 forming part of the container, has a metal partition 10 with a small opening 11, a helical cathode 1 and an anode 5 being arranged axially with the opening 11. The anode consists of a cylinder joined to the electrode 3 by a seal 6, and extending outwards to form a conduit for the evacuation of the device, the end being closed by a seal 7 or by welding: The arrangement prevents the passage into the anode compartment of cathode material, and secondary electrons emitted from the grid.
Patent GB-323340-A (GB)
Title: Improvements in submarine mines and method of anchoring the same
IPC: F42C5/00
Filed: 1928-12-04
Abstract: 323,340. Cuturi, M. Dec. 4, 1928. Mines, marine.-Relates to submarine mines of the kind which when thrown overboard first sink to the bottom, whereupon the mine proper separates from the anchor and rises to the desired depth where it is stopped by a hydrostatic device. According to the invention, the crushing of the mine when deeply submerged is prevented by balancing the external hydrostatic pressure by an internal fluid pressure, which may be obtained by the admission into the mine of water from outside or of a fluid from a tank wherein the fuid is stored under pressure. As shown in Fig. 1, the mine 2 containing the explosive charge 2a has an inner buoyancy chamber 2b, the bottom of which is open to the sea at 2c. This mine is attached to an anchor 3 with which it goes down to the bottom of the sea, the anchor being provided with rollers 3a for use in the launching operation. After a given time, a timing-device such as a soluble plug opens pipes 5a and allows a gas under pressure in tanks 5 in the anchor to flow into the buoyancy chamber 2b and expel the water therefrom. Another timing-device then unlocks the cable drum 3b, and allows the mine, which is now lighter than the surrounding water, to rise to the appointed depth, while the gas in the chamber 2b expands and leaks out of the mouth 2c. When the mine reaches the appointed depth, a hydrostat locks the mooring cable 4 to a pulley block 2d, and the sudden increase of tension of the cable breaks a plug 2f from its weak attachment to the mine casing and pulls it down to close the mouth 2c. Just before the plug reaches this mouth, a line 2j becomes taut and opens a valve 2h, which releases a gas from a tank 2g; this gas increases the pressure in the chamber 2b and thereby maintains the closing plug 2f firmly in the mouth 2c. In a modification, the chamber 2b is completely closed, and the flow of gas into it from the tanks 5 and out of it to the outside is controlled by hydrostatic valves, and a shearing device operating after a given time is provided to cut a pipe connecting the tanks 5 to the mine, to enable the mine to rise from its anchor.
Patent GB-791436-A (GB)
Title: Improvements in or relating to the manufacture of internally coated envelopes for electron discharge devices
Inventor: KRAUSE ANTHONY VICTOR DE VERE
IPC: H01J29/88
Filed: 1954-12-13
Abstract: <PICT:0791436/III/1> A method of internally coating the envelope of a discharge device, such as a C.R.T. or a discharge lamp, with colloidal graphite, metallic paints or luminescent powders, the envelope being formed by sealing together two portions meeting in a plane which can be perpendicular to the axis of the tube or lamp, comprises introducing into the envelope in the region of the seal, subsequent to the sealing but before evacuation, a quantity of a substance adapted to form the coating and rotating the envelope about a horizontal axis perpendicular to the plane of the seal. The coating material, e.g. colloidal graphite, is dispersed in a volatilizable medium, e.g. water, which is removed by partial evacuation or by the passage of dry gas.  At least one of the envelope portions 1, 7 is provided prior to sealing together with an internal coating 5, 11, e.g. colloidal graphite, extending towards the seal but spaced therefrom.  The coating substance is introduced into the envelope through a rubber tube 14 passed through the exhaust stem opening 3 and ending in the region 15 of the seal, and the envelope is rotated about its horizontal axis, excess substance overlapping the coatings 5, 11.  Specification 656,424, [Group XL (a)], is referred to.
Patent GB-427435-A (GB)
Title: Improvements in the treatment of carbonaceous materials with hydrogenating gases andapparatus therefor
IPC: B01J19/02
Filed: 1933-12-22
Abstract: In the conversion of organic compounds containing oxygen or sulphur, such as phenol or cresols, into hydrocarbons by treatment with hydrogenating gases under elevated conditions of temperature and pressure, corrosion of the apparatus is prevented by lining it with tantalum or alloys thereof.  Chromium-nickel steels alloys with tantalum with or without niobium may be used, and also alloys of tantalum with vanadium, tungsten, molybdenum and aluminium.  An iron alloy containing 1 per cent tantalum and 2--5 per cent aluminium is specified.  The coating may be applied directly by pressure or rolling, by immersing the apparatus in the liquid alloy, by immersion in the powdered alloy and subjection to intense heat, or electrolytically.  The coatings may be heated in hydrogen at 900--1000 DEG  C. or treated with zinc vapour. Alternatively, the apparatus may first be coated with zinc and then with tantalum. Specifications 268,796 and 270,313, [both in Class 32], are referred to.ALSO:In the treatment of carbonaceous materials with hydrogenating gases under elevated conditions of temperature and pressure corrosion of the apparatus is prevented by lining it with tantalum or alloys thereof.  Chromiumnickel steels alloyed with tantalum with or without niobium may be used also alloys of tantalum with vanadium, tungsten, molybdenum, and aluminium.  An iron alloy containing 1 per cent tantalum and 2--5 per cent aluminium is specified.  The coating may be applied directly by pressure or rolling, by immersing the apparatus in the liquid alloy, by immersion in the powdered alloy and subjection to intense heat, or electrolytically.  The coatings may be glowed in hydrogen at 900--1000 DEG  C., or treated with zinc vapour. Alternatively the apparatus may first be coated with zinc and then with tantalum.  Bituminous coal containing chlorine is finely ground and impregnated with a solution of ammonium phosphomolybdate in dilute ammonia.  The coal pasted with oil is destructively hydrogenated under a pressure of 250 atms. and at 425 DEG  C. in an apparatus comprising reaction vessel heat exchangers coolers and connection pipes lined with tantalum.  Specifications 268,796 and 270,313, [both in Class 32], are referred to.
Patent GB-1237535-A (GB)
Title: Window fasteners
Inventor: HOLDEN ERNEST JOHN
IPC: E05C3/04
Filed: 1967-08-08
Abstract: 1,237,535. Window fastenings. E. HOLDEN & CO. (B'HAM) Ltd. 24 July, 1968 [8 Aug., 1967], No. 36273/67. Heading E2A. A window fastener comprises a handle 10 mounted to pivot on a bush 15 extending through aligned holes in the end portion of the handle and in portions 13a, 13b of a supporting part 13. The supporting part is secured to a window or frame by a screw 19 engaging in the bush 15 and by a screw 18 extending from an opening in portion 13b. There are washers 16 between the end portion of the handle and the portions 13a, 13b. The handle has an offset surface 11 engageable with a keeper projecting from the frame or window.
Patent GB-1043096-A (GB)
Title: Process for the manufacture of o, o-dialkylthiono-phosphoric acid chlorides
IPC: C07F9/20
Filed: 1964-09-04
Abstract: O,O-Dialkylthionophosphoric acid chlorides of the formula (RO)2P(S)Cl in which R represents a C1 to C6 alkyl radical, are obtained by reacting a suspension of P2S5 in an inert solvent at a temperature of from about 0 to 150 DEG  C. with Cl2 and a C1 to C6 alkanol by introducing into the said suspension a stream of chlorine and adding dropwise concurrently the said alcohol, allowing the chlorination reaction to proceed to completion, expelling the solvent from the reaction mixture and isolating the O,O-dialkylthionophosphoric acid chloride by distillation.  The preferred mole ratio of P2S5 to alcohol to chlorine is 1:4.0 to 4.4:2.2 to 3.2.  It is also preferred that the chlorine and alcohol are introduced to the P2S5 suspension at a feed rate of approximately 1:2 (molar).  The balance of chlorine is then introduced at a constant feed rate.  Specified inert solvents are toluene, xylene, carbon tetrachloride, petroleum ether (boiling point 65-95 DEG  C.) and the O,O-dialkylthionophosphoric acid chloride obtained as the reaction product. Specified alcohols are methanol, ethanol, n-propanol, iso-propanol, n-butanol, iso-butanol, amyl alcohol, hexyl alcohol and the isomers thereof.  The chlorine used in the reaction may be diluted with inert gas such as CO2, A and N2 in a ratio by volume of about 1:0.5 to 1:3.  The product may be purified by steam distillation.
Patent GB-970851-A (GB)
Title: Convertible furniture for infants
IPC: A47D13/10
Filed: 1963-09-16
Abstract: 970,851. Nursery chairs. O. C. HERSHBERGER, and D. B. MORIN. Sept. 16, 1963, No. 36343/63. Heading A4J. [Also in Division B7] The U-shaped propelling handle 10 of a push chair is pivotally secured to the upturned end parts 18, 20 of two side frame members 14, 16 connected by springs 26 to the frame members 28. The side frame members 14, 16 also carry a channel-section member 30 bent into U-shape with a base 32 and side limbs 34 to slidingly accommodate the base 66, 68 of a tubular seat supporting frame having upwardly extending parts 64, 62 to support the seat 60 and the angularly adjustable back rest 76. The seat frame 62-68 may be accommodated in separate channel members 96 secured to rockers 90 (Fig. 6) or to a base 92 (Fig. 7) to serve as a rocking or stationary chair. The locking devices, 94, 98, and 48 in the embodiments shown lock the seat frame in the channel-section members.