baber/WOPTO huggingface dataset:
Patent GB-715894-A (GB)
Title: Friction igniting device
IPC: F42B3/117
Filed: 1951-08-17
Abstract: 715,894. Friction igniters. SOC. ALSACIENNE D'EXPLOSIFS ET D'APPLICATIONS CHIMIQUES. Aug. 17, 1951 [Aug. 17, 1950], No. 19472/51. Classes 9(1) and 9(2) A friction ignition device comprises a flexible cord 1 formed into a loop and passed through a hole 3 in an element 4 adapted to fit on the fuze or other body to be ignited. The ends of the cord terminate in a bead 2 sheathed in a coating 6 consisting of an abrasive paste e.g. powdered glass or a pyrophoric paste or a mixture of both. A suitable composition is powdered glass 50 grams, potassium chlorate 20 grams, gum 7 grams and water 23 c.c. The element 4 houses a capsule 7 of ignition material and a sealing liner 8 which may be composed of tar, Judµan bitumen, resin and paraffin. The capsule composition may be antimony sulphide 40 grams, potassium chlorate 45 grams, mercury fulminate 10 grams and gum 5 grams. The arrangement of the cord, which may be of nylon, or a vinyl or polyamide resin, may be varied.
Patent GB-257586-A (GB)
Title: Improvements in devices for producing acoustic oscillations
IPC: G10K9/04
Filed: 1926-08-07
Abstract: 257,586. Brandegger, W. Aug. 27, 1925, [Convention date]. Diaphragms. - In a horn in which a vibrating diaphragm produces interruptions in a fluid stream, the diaphragm is secured at its periphery to resilient radial arms which are mounted at their opposite ends upon the instrument at points between the periphery and the centre of the system. In one construction, Figs. 1 and 2, the diaphragm d with its circumferential ring e is formed integral with resilient arms f which are secured at their inner ends to a carrier g. In a modification, the arms fare attached to the outer side of the rim e and are bent underneath. In another construction Fig. 4, the tongues f are cut from a circular plate in the manner shown. In a further arrangement, the circular centre of the diaphragm is connected by three arms to a triangular ring which carries the resilient mounting arms. The diaphragm may be of steel, pinchbech, bone, celluloid, wire gauze, &c. A second diaphragm bearing wholly or partially against the first may be provided to prevent undesirable oscillations, and the main diaphragm may also be tensioned by the use of additional bearing elements such as pins.
Patent GB-596623-A (GB)
Title: Improvements in or relating to ploughs
IPC: A01B3/26
Filed: 1945-07-31
Abstract: 596,623. Ploughs. BRISTOL TRACTORS, Ltd., and FIELD, E. July 31, 1945, No. 19578. [Class 6 (i)] To ensure that the plough follows the ploughing instead of the tractor, a guide-wheel is provided for ploughs of the unit and trailing types such as are used in conjunction with tractors. The guide-wheel 1 is mounted at the lower end of a shaft 5, 6 so that its convex face 8 runs against the land side of the previously cut furrow in advance of the plough share. The upper part of the shaft 5, 6 is horizontal and is mounted in bearings 7 transversely across the plough frame 2. The shaft 6 is adjustable laterally across the plough and the ,depth of the guide-wheel can be varied by rotating the shaft 6 and varying the length of the chain 10 supporting the lower part 5 of the shaft.
Patent GB-1036820-A (GB)
Title: A backing strip for automatic single-side welding
IPC: B23K9/035
Filed: 1964-05-11
Abstract: 1,036,820. Welding by fusion. MITSUBISHI SHIPBUILDING & ENGINEERING CO. Ltd. May 11, 1964 [May 9, 1963], No. 19591/64. Heading B3R. A backing strip 11, Figs. 2, 3 (not shown), is provided with grooves 34, 35, 36 adapted to shape the back of a weld and surfaces 31, 32, 33 between the grooves shaped to conform selectively with various shapes or dimensions of workpieees. Thus a single backing strip may serve the purpose of backing flat plates or as a substitute for known forms of strip 24, Figs. 6, 7 (not shown), which conform to plates 21 of different thickness. Where one plate is appreciably thicker than the other its reverse side is bevelled and the backing strip is shaped correspondingly. Cooling tubes 37 conveying water are welded to the strip 11. A work support 2, Fig. 1 (not shown) is transversely adjustable on a mounting 1 and carries a lifting device 4 supporting separate lifting devices 7, 10 for work holders 6 and a backing strip 11. The latter is transversely adjustable by mechanism 12. The work is also supported by members 3 on the support 2.
Patent GB-1093587-A (GB)
Title: Improvements in or relating to mixing valves
Inventor: BERWICK ALBERT GEORGE
IPC: B67D1/00
Filed: 1965-05-10
Abstract: 1,093,587. Valves. GASKELL & CHAMBERS (NON-DRIP MEASURE) Ltd. April 27, 1966 [May 10, 1965], No. 19611/65. Heading F2V. A valve for mixing two beverages, e.g. cooled and non-cooled beer, has two inlets 3, 5 and one outlet 6; the connection between the inlet 5 and outlet 6 is permanently open via an annular mixing chamber 12 around the stem 7 of a conical obturator 9. The stem 7 has a piston portion 7a slidable in the chamber 12. The obturator 9 is movable by a stem 10 threaded into the valve casing 1. The inlet 3 and associated obturator scat is detachable.
Patent GB-682581-A (GB)
Title: Improvements in or relating to electrostatic precipitators
IPC: B03C3/66
Filed: 1951-08-21
Abstract: 682,581. Protective arrangements; supply systems for electrostatic precipitators. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 21, 1951 [Oct. 28,1950], No. 19686/51. Drawings to Specification. Class 38 (iv). To limit the current input to a step-up transformer-rectifier system supplying D.C. to an electrostatic precipitator when arcing of the precipitator occurs, the transformer is fed through a saturated reactor having a D.C. control winding which is energized over a rectifier from the terminals of the primary winding of the transformer. The arrangement is such that an initial reduction of voltage at the primary terminals, consequent upon arcing in the precipitator, causes an increase in impedance of the reactor and thus a further reduction of primary voltage. The action is cumulative and results in a sudden large reduction of primary voltage. A variable resistor may be included in series with the D.C. winding of the reactor to provide for adjustment of the normal-running output voltage of the transformer. Indicator lamps connected, respectively, across the reactor and primary winding of the transformer, show the presence of fault and normal conditions.
Patent GB-635094-A (GB)
Title: Improvements in or relating to de-watering screen
IPC: B01D35/20
Filed: 1947-07-23
Abstract: 635,094. Screening-apparatus. HEWITTROBINS, Inc. July 23, 1947, No. 19743. Convention date, Dec. 16, 1944. [Class 46] [Also in Group II] A screen, e.g., for dewatering coal comprises a foraminous material-supporting deck 1 adapted to be vibrated to advance a layer of wet, solid material 7 longitudinally of the deck and baffle means 5 for interrupting the continuity of the layer and maintaining predetermined spaced transverse strips 8 of the deck surface substantially free of solid material. As shown the deck is formed of a series of closely spaced bars 9, 10, Fig. 3, running lengthwise of the deck and having at intervals throughout their lengths transversely aligned short lengths thereof downwardly depressed to form shallow troughs. The depressed portions of bars 10 are laterally and oppositely deformed to bring these depressed portions closer together into groups which are more widely spaced from each other by spaces 11 than the adjacent straight portions of the bars. Transverse baffle plates 5 are arranged at the entrance side of each trough 8 and are canted forwardly so as to shield the adjacent trough from the material moving towards the left. One of the troughs 8 and its associated baffile 5 is located near the discharge end of the screen and a supplementary similar trough 12 is located immediately ahead of the bafflle. The lower end of the deck may be a washing section followed by the dewatering section. The deck may be tilted upwardly with respect to the direction of travel of the material thereon and may be vibrated in a direction of 45 degrees to its longitudinal axis.
Patent GB-874142-A (GB)
Title: 4ª--methyl steroids
Inventor: KIRK DAVID NEVILLE
IPC: C07J9/00
Filed: 1959-06-09
Abstract: The invention comprises (1) a method for the preparation of 4a -methyl-3-oxo-5a -steroids in general by reacting a 4-organothiomethyl-3-oxo-D 4-steroi with an alkali metal or an alkaline earth metal in liquid ammonia; and (2) the specific steroids 17b -hydroxy-2a :4a -and 17b -hydroxy-4a :6a -dimethylandrostan-3-ones and their 17-acetates and -propionates, 17b - hydroxy - 4a  - methyl-19-norandrostan-3-one, 20n -hydroxy-4a -methyl-5a -pregnan-3-one, 4a  - methyl - 5a  - pregnane-3 : 20 - dione, 20n -hydroxy-4a :16a -dimethyl-5a -pregnan - 3 - one, 4a :16a - dimethyl - 5a  - pregnane - 3 : 20 - dione, 11a  - hydroxy - 4a  - methyl - 17a :20:20:21 - bis - methylenedioxy-5a -pregnan-3-one, 4a -methyl-17a :20:20:21 - bis-methylenedioxy-5a -pregnane-3:11-dione, 4a -methyl-5a :25D-spirostan-3-one, 20:20-ethylenedioxy-17a -hydroxy - 4a  - methyl-5a -pregnan-3-one, and 17a -hydroxy-4a -methyl-5a -pregnane-3:20-dione and the 17-acetate thereof.  For process (1) the preferred metal is lithium, and the organothiomethyl steroid is desirably dissolved in an inert organic solvent such as tetrahydrofuran.  The process may be applied to steroids of the androstane, pregnane, sitostane, ergostane, stigmastane, cholestane and spirostane series, and their 19-nor and D-homo analogues.  Oxo groups in the starting steroid may be reduced to hydroxy groups in the process, but may subsequently be re-formed by oxidation with for example, chromium trioxide.  Esterified hydroxyl groups may likewise be hydrolysed, but may subsequently be re-esterified.  Examples describe the preparation of all the 4a -methyl steroids specified above and of 17b -acetoxy-4a -methylandrostan-3-one, 17b -acetoxy-4a -methyl-D-homoandrostan - 3 - one, 17b -hydroxy-4a :17a -dimethylandrostan-3 - one, 4a -methyl-5a -pregn-9(11)-ene-3:20-dione (via the corresponding 20n -compound), 4a -methylandrostane-3:17-dione, and 4a  - methyl - 5a  - ergosta-7:22-dien-3-one.  Starting materials. 4-(Para-tolylthiomethyl)-25D-spirost-4-en-3-one and 20:20-ethylenedioxy - 17a  - hydroxy - 4 - (p-tolylthiomethyl)pregn-4-en-3-one are prepared by the process described and claimed in Specification 862,621.ALSO:Pharmaceutical preparations contain, as essential active ingredient, certain 4a -methyl-3-oxo-5a -steroids of the pregnane, androstane and spirostane series.  They may take the form of tablets, elixirs, injections or implants.  Specification 862,621 is referred to.
Patent GB-624997-A (GB)
Title: A portable pressure fed electrically driven carpet and upholstery shampooing and cleaning machine
IPC: A47L11/38
Filed: 1947-07-23
Abstract: 624,997. Carpet and upholstery cleaning machines. HOLLOWAY, G. E. July 23, 1947, Nos. 19807 and 26045. [Class 138(i)] A hand tool for shampooing and cleaning carpets and upholstery comprises an electrically driven rotary brush, the brush shaft being hollow and containing a stationary pipe through which cleaning fluid can be supplied to the brush. The tool shown is supported by two handles 11, 12 and comprises an electric motor 20 which drives the hollow brush spindle 30 through an enclosed belt and pulley reduction gear 22. Projecting through the brush spindle is a stationary pipe 40 terminating in a radially directed nozzle 41 and connected at its other end to a thumb-controlled valve 45 and a flexible pipe (not shown). The flexible pipe may be connected to a container for the cleaning fluid, the container having an air pump and pressure gauge. A switch 24 for the electric motor may be mounted on the handle 11.
Patent GB-149523-A (GB)
Title: An improved combined water heating and cooking stove
IPC: F24B9/00
Filed: 1919-08-12
Abstract: 149,523. MeDowall, Steven, & Co., and Steven, A. W. Aug. 12, 1919. Cooking stoves and ranges; boilers.-A stove comprises a boiler A with an enclosed fire space 3, an oven or cooker portion consisting of a hot closet B with a superposed oven C, flues passing round the oven, and means, e.g. the dampers 16<a> and 18a, for allowing the combustion products to pass either directly to the chimney, or first around, or partly round, the oven. The dampers 16a and 18a may be connected for simultaneous operation. A check draught damper 20 may also be provided. The boiler A has a preferably annular water space. 6 and a water-jacketed flue 15 leading to the flue 1. A rocking grate 8 is provided. The oven top 19 and the boiler top 10 form hot plates. Reference has been directed by the Comptroller to Specifications 131/97 and 4737/09.
Patent GB-1505189-A (GB)
Title: Injection current device and method
IPC: G03G15/05
Filed: 1975-05-12
Abstract: 1505189 Photoconductive devices XEROX CORP 12 May 1975 [17 July 1974] 19887/75 Heading H1K [Also in Division G2] A "gain photocurrent" device (i.e. a device having a photoconductive response as shown in Fig. 2 in which, after a time interval t1 following commencement of illumination, the photocurrent increases beyond the level corresponding to a quantum efficiency of 1) comprises two electrodes 1, 4 and, sandwiched therebetween a photoconductive layer 3 and an insulating layer 2, the thickness ratio of the layer 3 to the layer 2 being generally at least 10 to 1. The physical mechanism of the device device is discussed, it being theorized that up to time t1 photoelectrically generated charges accumulate at the photoconductor/insulator interface, and that at time t1 the resulting field across the insulating layer 2 reaches a critical value at which charges begin to be injected into the valence band of the insulator by "thermally assisted tunneling", resulting in "gain photocurrent". The gain photocurrent is stated to be temperature-dependent. Numerous exemplary materials for layers 2 and 3 and electrodes 1 and 4 are disclosed, the majority of those suitable for the insulating layer 2 being organic. The photoconductor of layer 2 may likewise be either organic or inorganic. Particularly desirable selections of electrode work function and insulator electron affinity and ionization potential are discussed. In a modification an "imaging layer" (7) Fig. 3 (not shown) is inserted between the photoconductor (3) and the adjacent electrode (4). The layer (7) is preferably a liquid crystal which undergoes a texture transformation in response to imagewise exposure. It may also be an electrochromic display layer.
Patent GB-631770-A (GB)
Title: Device for shooting off light signals or rockets
IPC: F41C3/02
Filed: 1947-07-24
Abstract: 631,770. Discharging distress rockets &c. TVETEN, F. July 24, 1947, No. 19899. Convention date, Dec. 21, 1946. [Class 9 (ii)] The handle 5 of a device for discharging rockets and light signals is axially in line with the barrel 1, with which it is detachably connected, houses the igniting pin 15 and associated mechanism, and contains a casing 6 which is formed with projecting cylindrical portions 7, 7<SP>1</SP>, the latter being slotted at 8 for the reception of pivotally mounted levers 9 which hold the barrel in place. These levers are pressed outwards by springs 11 to bring cylindrical parts 12 thereon into register with enlarged openings 13 in the slotted end of the barrel. To release the barrel the levers are pressed inwards, this action serving also to enable the levers to engage at 14 the flanged base 4 of the cartridge 3. Firing is effected by pulling a ring 24 connected at 19, 20 to the lower end of the pin 15. A fixed pin 25 eventually serves to open out the levers 21 connected to the ring 24, thus releasing the connection 19, 20 and allowing the pin 15 to fly forwards under spring action to effect the discharge of the rocket.
Patent GB-180594-A (GB)
Title: A new or improved boomerang
IPC: A63B65/08
Filed: 1921-07-25
Abstract: 180,594. Browne, G. M. July 25, 1921. Projectiles.-A boomerang of the kind shaped to produce a propeller-like action when in flight, has its flat side b tapered off from the lines c, e to the edges d, f respectively, part of the tapered surface being concave. The boomerang is adapted to be held in a vertical position and to be thrown in an horizontal direction, whereupon it completes a perfect circle.
Patent GB-746599-A (GB)
Title: Improvements relating to frame structures supporting movable carriages
Inventor: HOLLIS CHARLES PETER
IPC: A61B6/00
Filed: 1953-07-17
Abstract: 746,599. X-ray apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. July 19, 1954 [July 17, 1953], No. 19935/53. Class 98 (1). In a frame structure having a carriage movable along it, two guide members extending along opposite sides of the frame are supported by mounting members secured to the frame and present convex surfaces for cooperation with wheels or the like mounted on the carriage and peripherally grooved for rolling engagement with the guide members on opposite sides of the groove, one or more of the mounting members for at least one of the guide members being adjustable so that the guide members may be located accurately parallel to each other, As shown, a frame is rotatable about its longitudinal axis by means of a boss 3 engaging a support shaft (not shown). Circular rods 4 are supported at their ends within the channel-sectioned side members 1 of the frame by mounting blocks 7. Each block 7 is located against the bottom of the channel by adjusting screws 8, and is secured in position by tightening screws 9 which pass with clearance through the sides of the channel and are threaded into the blocks. If necessary, the rods 4 are supported between their ends by similarly adjustable blocks 10. A carriage 6 carrying, e.g. an X-ray tube, has grooved wheels 5 engaging rods 4, so that when the rods are adjusted into parallelism the carriage moves smoothly along the rods however the frame is tilted. The wheels 5 may engage the rods on the outside of rods 4, instead of on the inside as shown.
Patent GB-809413-A (GB)
Title: Improvements in packings
IPC: A45C13/02
Filed: 1955-07-11
Abstract: 809,413. Internal fittings for boxes; packaging. BACHMANN ET CIE S. a r. 1. July 11, 1955 [July 10, 1954 ; June 25, 1955], No. 20008/55. Classes 18 and 94(1). [Also in Group XXXII] A shock-absorbing device adapted to be interposed between a fragile article and the walls of a container comprises a plurality of pneumatic cushions each having a predetermined quantity of air or gas permanently enclosed therein, the cushions being formed by uniting substantially flat sheets of material and being joined to one another by flexible material. In one form, Fig. 1, two strips of thermoplastic material, e.g. p.v.c. or polythene, are welded together along their edges 3, 4, 5 and 13 to form a container which is filled with air or gas at the desired pressure through a valve 12 and then welded transversely along the lines 6, 7, 8 and 9 to form a number of sealed compartments. The portion containing the valve is then cut off along the line a-b. The resulting structure may be used to protect a radio valve 14 in a carton 15 as shown in Fig. 3. Instead of or in addition to admitting air or gas to the interior of the container, vacuum may be applied to its exterior, e.g. through cavities in the welding tools. Alternatively, the compartments may be inflated individually by means of a hollow needle, the holes pierced by the needle being subsequently sealed. The two strips may be replaced by a folded strip. In a modification, Fig. 4, the air or gas-filled compartments are formed by welding the container along transverse and longitudinal lines 7a, 8a and 14. The resulting structure may be interposed between a glass bottle 15, Fig. 5, and an outer metal container 16. In a second form, Fig. 6, pneumatic cushions C 4 , formed by edge-welding sheets 22 and 23 of thermoplastic material, are secured to reinforcing strips 25 welded to flexible material H covering an article M enclosed in a rigid container D. The reinforcing strips may be omitted and the cushions secured directly to the covering, (see Fig. 8, not shown). Alternatively, the cushions may be secured to the interior of the covering, (see Fig. 12, not shown). In a modification, Fig. 7 (not shown), a single cushion is provided at each corner of the article. In another modification, Fig. 9, cushions C 7  are formed by welding the edges of sheets 35 to the covering H. The margins of the sheets may extend beyond the welds and be attached by nails to the container D, (see Fig. 11, not shown). In a further modification cushions C 12 , Fig. 13, are formed by welding together discs 50, 50a and washers 51 of thermoplastic material, the discs 50a being attached to the covering H. Cushions having different natural frequencies of vibration may be superimposed, (see Fig. 15, not shown), or arranged in groups side-by-side, (see Fig. 14, not shown), or in staggered formation, (see Fig. 16, not shown).
Patent GB-776874-A (GB)
Title: Lubricant additives and lubricants containing them
Inventor: JENSEN HANS CHRISTIAN HENRY
IPC: C07F9/04
Filed: 1954-07-08
Abstract: A lubricating composition, suitable for use at extreme pressures, comprises lubricating oil, a sulphurized or phosphosulphurized terpene containing 10-50 per cent by weight of combined sulphur and a chlorinated hydrocarbon or chlorinated phenol, the proportions of the ingredients being so chosen that the composition contains 0.5-2.0 per cent by weight of combined chlorine.  Terpenes mentioned are dipentene, carene, alpha-pinene and camphene, and sulphurization may be effected by reaction with elemental sulphur. Phospho-sulphurization may be effected by heating the sulphurized terpene with red phosphorus or by reacting the terpene with a mixture of elemental phosphorus and sulphur or a mixture of phosphorus sulphides.  The chlorinated hydrocarbon may be aliphatic, cycloaliphatic or aromatic, for example chlorinated petroleum waxes, chlorinated paraffinic earth waxes, chlorinated terpenes (such as dipentene, carene, alpha-pinene or camphene), trichlortoluol, chlorinated indene, hexachloroethane, octachloropropane, hexachlorocyclohexane and dichlorodiphenyltrichloroethane.  Suitable chlorinated phenols are pentachlorphenol and trichlorxylenol.  In an example, a mixture of sulphurized dipentene (containing 33.5 per cent of combined sulphur) and chlorinated camphene (containing 67 per cent of combined chlorine) is added to mineral lubricating oil to give a composition containing 1.32 per cent of combined chlorine. For comparison purposes, the addition to mineral lubricating oil is described of mixtures of (a) sulphurized and chlorinated paraffin wax and kerosene, (b) P2S5-treated bright stock and chlorinated benzyl sulphide and (c) chlorinated paraffin wax and phospho-sulphurized methyl ester of rosin acids. The Provisional Specification refers generally to a lubricating composition comprising a major proportion of lubricating oil and a minor proportion of a blend of a sulphurized or phophosulphurized terpene and a chlorinated hydrocarbon. Specifications 431,434, 656,253, 679,296, 686,074, 688,293, 703,631, 727,573, 735,231, 750,094, 761,579 [Group IV(b)], 761,997, 771,243 [Group XIX]