baber/WOPTO huggingface dataset:
Patent GB-774926-A (GB)
Title: Improvements in or relating to methods of degassing electrodes of electric dischargetubes
IPC: H01J29/94
Filed: 1954-12-07
Abstract: 774,926. Discharge apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 7, 1954 [Dec. 10, 1953], No. 35418/54. Class 39(1). An electrode is degassed by electron bombardment, by apply ing to it positive pulses of such short duration that the ions pro duced are unable to reach the cathode. Pulses of 2000 V. and 10-<7> sec. duration are suitable with an electrode distance of 20 mm. Between pulses the ions can be pumped away or gettered or they may be drawn to ar auxiliary electrode which receives negative pulses. The half-periods of negative pulses for collecting ions may be applied to the bombarded electrode itself, in which case the negative and positive pulses can be constituted by a continuous alternating voltage. Applying this method to a structure such as the electron gun shown, the ions are absorbed mostly at areas not normally struck by electrons, so that the method can be applied after sealing off. Specification 721,218 is referred to.
Patent GB-1026066-A (GB)
Title: Reaction products of olefinic copolymers with melamine-formaldehyde resins
IPC: C08G81/02
Filed: 1964-08-28
Abstract: Cross-linked resin products are prepared by reacting 1 to 99 parts by weight of a melamine-formaldehyde resin with from 99 to 1 parts by weight (i.e. a total of 100 parts by weight of the two reactants) of a copolymer of an olefin and an alpha-beta ethylenically unsaturated carboxylic acid, the acid constituting from 1 to 25% by weight of the copolymer.  The copolymer may be obtained by joint polymerization of the olefin and acid, or by graft polymerization of the acid to a preformed polyolefin (examples of both types are disclosed); the copolymer may also be one obtained by hydrolyzing a corresponding olefin-unsaturated ester copolymer. The olefin constituent of the copolymer may be derived from ethylene, propylene, butene-1 or isobutene; and the acid component from acrylic, methacrylic, ethacrylic, itaconic, citraconic, maleic or fumaric acid.  The copoly-may contain a minor proportion of another, monomer, e.g. another olefin of 3 to 18 carbon atoms, a vinyl or vinylidene halide, styrene, alpha-methyl styrene, norbornene, methyl methacrylate, ethyl acrylate, acrylonitrile, vinyl alcohol, vinyl acetate or methyl vinyl ether. A cross-linking agent, e.g. divinyl benzene or diallyl fumarate, may be included in the graft copolymers.  The copolymer may be modified before being reacted with the melamine-formaldehyde resin, e.g. by cross-linking, chlorinating or sulphochlorinating. The polymeric components are generally reacted by intimately blending them together, preferably by mixing in an aromatic organic solvent, whereby a gel is formed, the gel then being precipitated by addition of a non-solvent.  In the examples, a commercial melamine-formaldehyde polymer is reacted with (1-3) ethylene-methacrylic acid copolymer, (4) ethylene-vinyl acetate - methacrylic acid copolymer, (5) ethylene-methacrylic acid copolymer, (6) polypropylene-acrylic acid graft copolymer obtained by heating acrylic acid and polypropylene in xylene in the presence of oxygen and dicumyl peroxide, (7) ethylene-fumaric acid copolymer.
Patent GB-1123201-A (GB)
Title: Improvements in or relating to advancing mine roof support systems
IPC: E21D23/12
Filed: 1965-08-18
Abstract: 1,123,201. Advancing mine roof supports. GEWERKSCHAFT EISENHUTTE WESTFALIA. 18 Aug., 1965 [20 Aug., 1964], No. 35451/65. Heading E1E. A multiple frame structure for a self-advancing roof support 'system comprises three parallel support frames 1, the middle one being connected by springs 5 to a double-armed stub member 8 each end of which is connected to a respective ram cylinder 2 associated with a respective outer support frame 1, connected (by a stub member 7) to its associated ram cylinder 2 by springs 5. The advance frame may be made to follow the coal face automatically by shifting under a continuous force or in steps under the control of a sensing device extending from the frame to contact with the coal face and to trigger the shifting of the frame.
Patent GB-864882-A (GB)
Title: Process for the production of 2-chloro-3:4-epoxybutene-1
Inventor: HAWKINS EDWIN GEORGE EDWARD
Filed: 1957-11-14
Abstract: 2-Chloro-3:4-epoxybutene-1 is produced by dehydrochlorinating 1:2-dichloro-3:4- epoxybutane with an alkali.  The preferred alkalis are the alkali metal hydroxides such as sodium and potassium hydroxides.  The dichloroepoxybutane may be reacted with fused alkali metal hydroxides, the formed chloroepoxybutene being distilled directly from the reaction mixture.  The reaction can also be effected in a liquid diluent such as dioxane, ethylene glycol, water or a lower aliphatic alcohol.  When using water or an alcohol, some by-product glycol or chlorohydroxyalkoxybutene, respectively, may also be obtained. When using a diluent, the reaction may be initiated at room temperature.  The product may be recovered by fractional distillation in many instances, but lower alcohols form azeotropic mixtures with the product.  The epoxybutene may be recovered by diluting such azeotropes with water and separating the product directly or extracting the mixture with a water-immiscible solvent such as diethyl ether.  Specification 864,880 is referred to.
Patent GB-1003866-A (GB)
Title: Titanium dioxide pigments
IPC: C09C1/36
Filed: 1963-09-09
Abstract: A titanium dioxide pigment of improved chalk resistance is characterized by the presence of a minor amount of an insoluble hydrous zirconium phosphate on the particles.  The weight of the phosphate calculated as 2(ZrO2). P2O5 may be between 1 and 3% of the weight of the TiO2 present in the pigment.  Minor amounts of hydrous zirconia or alumina may also be present on the pigment particles. The pigment may be manufactured by forming an aqueous slurry of TiO2 and precipitating a minor amount of hydrous zirconium phosphate in the slurry.  The slurry may contain a dissolved zirconium salt (e.g. ZrCl4, zirconium sulphate and nitrate and zirconyl sulphate) and the aqueous solution of a phosphatic compound (e.g. orthophosphoric acid, trisodium phosphate) is added to this the resulting slurry being neutralized with calcium hydroxide, bicarbonate or carbonate.  After neutralization, the pigment may be washed with water and then jet milled.  The aqueous phosphatic solution may be added in sufficient quantities to precipitate only part of the zirconium present, on neutralization the remainder of zirconium is precipitated as hydrous zirconia.
Patent GB-1473424-A (GB)
Title: Production of zinc powder for electrochemical batteries
IPC: H01M4/42
Filed: 1974-08-13
Abstract: 1473424 Zinc-alloy for battery electrodes METALLURGIE HOBOKEN-OVERPELT 13 Aug 1974 [19 Sept 1973] 35630/74 Heading C7D A zinc powder containing mercury, for use as a compacted electrode in an electro-chemical battery, is produced by melting the zone adding part or all the mercury required in the battery and allowing the melt to homogenize prior to atomization to powder form. In this manner, it is claimed that the mercury is uniformly distributed in each grain of powder.
Patent GB-406248-A (GB)
Title: Improvements in or relating to gas heated smoothing or pressing irons
IPC: D06F75/02
Filed: 1933-07-24
Abstract: 406,248. Hand irons. MULLINS, E., 36, Station Road, North Harrow, Middlesex.- (Muller & Kurth; 18, Elsenbahnstrasse, Schliessfach, Offenbach, Germany.) July 24, 1933, No. 35633. Divided on 405,204. [Class 138 (ii).] A gas - heated smoothing iron is provided with two burners 16, 17, one being placed at the rear end of the iron and the other approximately midway of the length of the iron in front of a transverse rib 21. The burners, which are inclined as shown, lead from a common mixing chamber 15 formed in the top of the iron, gas and air inlets 7, 10 communicating with the mixing chamber. The air inlets are regulated by an apertured rotatable plate 12. Humps 20 serving as heat accumulators are formed in the bottom of the iron.
Patent GB-769114-A (GB)
Title: Ornament, especially for an umbrella
IPC: A45C13/42
Filed: 1954-12-09
Abstract: 769,114. Handbags. GORDON, H. P. May 3, 1955 [Dec. 9, 1954], No. 35692/54. Class 133. [Also in Groups VII, XV and XVIII] An ornament for the clasp of a handbag comprises a base member, a cap engageable on the base member and a holder for a detachable tablet clamped between the cap and base member, the parts being constructed so that the tablet when fitted is visible through the cap, the cap and base member defining therebetween a socket, the holder being in the form of a slab fitting in the socket and being formed in its face visible through the cap with a recess for accommodating the tablet. As shown in Fig. 1, a base member 1 has a socket 6 over which a transparent cover 3 is secured by a screw cap 2. Within the socket is a slab 4 supported by leaf sprockets 5 sliding in grooves in the base of the slab. The slab has recesses 9 for tablets bearing initials 11. The tablets may slide in slideways in a plate having retaining lugs or flanges or metal L-section retaining members. The slab may be in two parts split along a diameter secured by one or more metal I-shaped members, each part of the slab having a recess or recesses for a tablet or tablets. The slab may be hollowed out for a tablet which is retained therein by a screw plug. Two caps and sockets may be mounted on a common base member.
Patent GB-470608-A (GB)
Title: Improvements in and relating to electrical condensers and electrodes therefor
IPC: H01G9/055
Filed: 1936-12-31
Abstract: 470,608. Electrolytic condensers. MALLORY PATENTS HOLDING CO., Ltd. Dec. 31, 1936, No. 35819. Convention date, Feb. 15. [Class 37] [Also in Group XVI] Electrodes having a part of their surface etched have the other part immunized wholly or partly from the etching operation by applying a layer of protective material such as paper or a film of material such as paraffin. Such an unetched part may form a transverse band as at 11, Fig. 1, a diagonal strip as at 51, Fig. 5, a longitudinal strip as at 41, Fig. 4, or an end portion. A terminal strip may be attached to or, as shown, formed from the unetched part. Fig. 8 shows an apparatus in which the strip electrode 71 is unwound from a roll 70 and successively cleaned in the tank 73, washed in the tanks 77 and 93, etched in the tank 97 and washed in tanks 105 and 109. Between the washings in tanks 77 and 93, the foil passes between felt rollers 82, 83, saturated with suitable immunizing material, which are applied at intervals by means of a cam mechanism 87. As shown, the immunization is effected bv applying an electrolyte by means of the rollers and passing a direct current through the foil as by a generator 91. Specifications 442,646, 453,042, and 35706/36 are referred to.
Patent GB-1394211-A (GB)
Title: Valve operator
IPC: F15B11/06
Filed: 1972-08-01
Abstract: 1394211 Valves LONE STAR INDUSTRIES Inc 1 Aug 1972 [9 Aug 1971] 35887/72 Heading F2V A fast valve operator for rotating a valve shaft (14) (Fig. 1, not shown) through 90 degrees to effect opening or closing of the valve (10) comprises a shaft 20 coaxial with and flexibly coupled to the shaft (14), a driven sprocket 38 and idler 46 coupled by a sprocket chain 40 the ends of which are adjustably secured to a piston rod 86 so that movement of the rod in either direction causes rotation of the shaft 20. The piston is "cocked" in the "closed" position of the valve by a trigger 102 preventing clockwise rotation of the sprocket 38. To operate the trigger fluid pressure is applied to a piston/ cylinder arrangement 110 which causes a striker 120 to move into the path of the trigger and release the sprocket. To "cock" the piston, fluid pressure is applied to the piston via conduit 74 whilst the trigger locks the sprocket 38. Once released the piston moves leftwards to open the valve (10) and is slowed towards the end of its movement by a dashpot effect of the piston rod 86 entering a bore in an end plate 63 of the cylinder 62. The valve operator is reset by applying fluid pressure via conduit 72. An alternative form of trigger comprises a core (124) rotatably fixed to shaft 20 (Figs. 5 and 6, not shown) and a spring (144) attached to a cage (138) and urged into engagement with the surface of the cone by a spring (148). Movement of the shaft 20 in one direction causes the spring (144) to wrap around the surface more tightly and hold the piston "cocked". Release is effected by applying a current to solenoid (150) to retract the cage (138). In another form the piston is held fluidically (Fig. 7, not shown) and release is effected by energizing a number of solenoid valves (164, 172, 176, 186). The sprocket (240) (Figs. 8 and 9, not shown) may be in continuous loop and the trigger 102 may be provided with a roller bearing catch (200).
Patent GB-877189-A (GB)
Title: Improvements in wire tying machines
Inventor: SANSUM ROBERT DAVID
IPC: B65B27/06
Filed: 1959-10-23
Abstract: 877,189. Bundling-machines. GERRARD INDUSTRIES Ltd., and RYLANDS BROS. Ltd. Oct. 23, 1959, No. 36064/59. Class 94(1). A coil binding machine substantially as described in Specification 816,675 is modified in that the gripper is caused automatically to release the wire upon downwards movement of the work-head and operation of the wire tensioning device causes the gripper to close on the wire inserted within it. The gripper 18 is opened and closed by an arm 22 pivoted at 23 and connected to a push rod 25. As the head descends, a cam 26 engages the push rod to release the gripper, the rod being maintained in the release position by a latch 27. Rotation of the shaft 6 driving the feed rollers 5, when in the tensioning direction lowers the latch to allow the gripper to be closed by spring means, Fig. 2 (not shown), acting on the lever 22.
Patent GB-1099301-A (GB)
Title: Electrical timekeeping apparatus
IPC: G04C3/10
Filed: 1966-08-12
Abstract: 1,099,301. Electric timepieces. KIENZLE UHRENFABRIKEN G. m. b. H. Aug.12, 1966 [Aug.12, 1965], No.36137/66. Heading G3T. An electric timepiece comprises a flexural oscillator 1 and a rotor 7 driven by the field of an electromagnet 5, 6, the oscillator and rotor being coupled by a shaft (8), Fig. 2 (not shown). A permanent magnet 3 attached to the oscillator reduces current pulses in a control coil 4 which are amplified by an electronic circuit (not shown) and fed to the coil 5. The rotor, the rim of which comprises a multipolar magnet, is thus caused to rotate by the field of the electromagnet 5, 6, the rotation being governed by the natural vibration frequency of the spring blade oscillator 1 which is clamped at the point 2. A Piezo-electric crystal may be used to maintain the oscillation of the system and the flexural oscillator may comprise a tuning fork.
Patent GB-955400-A (GB)
Title: Improvements in or relating to fault indicating arrangements for electric current rectifier circuits
Inventor: HALL NORMAN DENNIS
IPC: H02H7/12
Filed: 1961-10-09
Abstract: 955,400. Protective arrangements. GENERAL ELECTRIC CO. Ltd. Sept. 28, 1962 [Oct. 9, 1961], No. 36181/61. Heading H2K. In a fault-indicating circuit for a plurality of rectifier elements 7 each in series with a fuse 8, the fuses are connected in circuit with a balanced quadrilateral network, so that the blowing of a fuse causes unbalance and the operation of detecting means 14 connected between two opposite corners Q, S of the network. In the polyphase full-wave rectifier arrangement shown, two limbs of the network are formed by resistors 9, 10 and the other two limbs are formed by the fuses 8 in series with resistors 11, 12. Other arrangements described include a polyphase half-wave rectifier arrangement with the fuses and their series resistors in one limb of the network, Fig. 2 (not shown), and a polyphase full-wave rectifier arrangement with a network associated with each group of rectifiers, Fig. 3 (not shown).
Patent GB-174842-A (GB)
Title: Improvements in or relating to railway axle boxes
IPC: B61F15/26
Filed: 1920-12-24
Abstract: 174,842. Symington Co., T. H., Peters & Co., Ltd., G. D., and Hibberd, F. C. Dec. 24, 1920. Axle-box lids and covers. -A railway-vehicle axle-box is provided with a hinged lid and a spring catch which automatically locks when the lid is closed and is released by a key or tool inserted through an opening 21 underneath the lid and hidden from view. The catch 13, which engages a lip 20 on the axle-box is formed on a block 13<a> sliding in a guideway in the lid 2 against a spring 17. A coiled spring 6 carrying a bearing plate 10 co-operates with a projection 11 on the axle-box to hold the lid in either closed or open positions, the lid being pivoted at 3.
Patent GB-1239816-A (GB)
Title: Yarn heater for use in crimping yarn
Inventor: STODDARD NICHOLAS J
IPC: D02J13/00
Filed: 1968-07-30
Abstract: 1,239,816. Heating and crimping yarn and fibres. N. J. STODDARD and R. W. STODDARD. 30 July, 1968 [8 Aug., 1967], No: 36220/68. Headings D1D, D1F and D1W. A heater for the continuous heating of running twisted yarns, as may be employed in texturing and crimping by a process which includes false-twisting, comprises a series of yarn heating surfaces, perhaps incorporated in a single heater body, sequentially arranged along the yarn path and twist-propagating means e.g. rotatably mounted annular bodies having an internal diameter slightly less than that of the annular aperture of the heater body and an external diameter slightly larger than the exterior heater surface of the (tubular) body. The propagating means are disposed between heating surfaces to provide a yarn path passing alternately over these surfaces and means. "Twist-propagating" indentifies the sustaining of the twist imparted to the yarn by conventional false-twist means i.e the twist is not disturbed in its uniformity and is not significantly alternated in the heated yarn path dispite repeated contact with path reversing surfaces. The heater body may be square, oval or circular in cross-section. The term "yarn" includes staple and multifilament yarns and filaments, thermoplastic yarn of polymers such as nylons, polyesters and polyolefines and mixtures thereof with each other or with non-thermoplastic yarns, and also yarns rendered functionally thermoplastic by treatment with solutions. In the operation of the apparatus shown, yarn drawn from supply package 12 through pretension device 13 and oscillating guide eye 14 passes without slippage through tensioning apparatus 15 and then, under uniform tension, makes successive passes upwards over the outer surface of heater 51 (as through axial groove 66) then over twist propagating element 60 and downwardly through the central opening in tube 53, around twist-propagating element 61 and again upwardly along outside of heater body 51 (as through grooves 67, 68, 69) the length of the heating path thus being much longer than the length of the heater. Pulley 57 is driven at a rate related to the speed of the primary twisting spindle 17 and rate of yarn advance and carrier supporting tube 53 and elements 60, 61, therewith.
Patent GB-926325-A (GB)
Title: Improvements in or relating to apparatus and methods for cleaning surfaces such as those of floors, walls and ceilings
IPC: A47L11/38
Filed: 1961-10-10
Abstract: 926,325. Cleaning flows. R. R. ROCKWELL. Oct. 10, 1961 [Oct. 14, 1960], No. 36355/61. Class 138 (1). Apparatus for cleaning a flow surface comprises a head 16 arranged to travel over the floor and having an elongated nozzle 40 for discharging cleaning liquid, pumped from a wheeled tank (not shown), on to the floor surface, and a suction pump (not shown) for withdrawing the used liquid through an elongated suction inlet 46. The nozzle 40 and the inlet 46 are connected through valve-controlled conduits 24, 26 to the wheeled tank which contains a filter for the soiled liquid.
Patent GB-161154-A (GB)
Title: Improvements in and relating to electric furnaces
IPC: H05B3/00
Filed: 1920-12-30
Abstract: 161,154. Reed, R. R. March 27, 1920, [Convention date]. Resistance furnaces. - Resistances arranged vertically around a crucible are immersed in a mass of molten glass; or each resistance may be in a separate cylindrical vessel filled with glass. As shown, the glass is contained in a casing 10, Fig. 1, of firebrick or concrete, provided with a lining 11 of magnesia, or a mixture of magnesia and brick-dust. The carbon resistance rods 17,- Fig. 1, or perforated plates, Fig. 3, are supported by sockets 18 designed to allow some lateral movement, and the crucible is supported by pedestals 15 in such a way that it is free to expand and contract. A cover 21 of concrete soapstone ,&c. may be lined with magnesia. The glass preferably contains a large proportion, say over 80 per cent, of silica, the other constituents being equally resistant to reduction by the carbon. It is placed in the furnace in powder form. The terminal rods 19 are arranged so that they car be withdrawn.
Patent GB-434192-A (GB)
Title: Improvements in or relating to welded assemblies, such as lead-in wire assemblies, comprising composite metal bars, rods or wires
IPC: B23K1/19
Filed: 1933-12-28
Abstract: The core of a composite wire used for lead-in wires, filaments, grids, &c. may be of copper containing 0.1-0.5 per cent of beryllium. p
Patent GB-1490447-A (GB)
Title: Covered plastics container
IPC: B65D17/40
Filed: 1975-09-04
Abstract: 1490447 Plastics containers POLYSAR Ltd 4 Sept 1975 [11 Sept 1974] 36550/75 Heading B8C A curved plastics container 10 comprises a laminate cover 13 comprising an inner plastics layer 15 sealed to the upper end 11 of the body wall and, weakly adhering to the outer surface of the inner plastics layer, at least one outer plastics layer 16, so shaped and formed as to act as a press-on lid for the container when separated from said inner plastics layer 15. The plastics container 10, 20, formed of two strongly-adhering layers 17, 18, has an upper flange 11 with a depending edge 12, the cover 13, which comprises two layers 15, 16 weaklyadhered together and has a corresponding depending edge 14, having its inner layer 15 hermetically sealed to the container flange 11, 12. Figs. 2-4 show alternative forms for the rim and cover for a container. The rim of the cover 150, Fig. 2, has a recess 157 to assist in the removal of the lid, the containers shown in Figs. 2 and 3 being formed of a single layer of plastics. For single wall containers the plastics materials are preferably selected from polyethylene, polyproylene, PVC, acrylonitrilebutadiene-styrene resins, polystyrene; and for laminates, from polyethylene-polystyrene, polyethylene-high-impact polystyrene, PVC-polystyrene, and high-impact polystyrene-polystyrene. Plastics materials can be selected from, for the inner layer, polyethylene, polypropylene, PVC and high-impact polystyrene, and for the outer layer, or layers, high impact polystyrene and high impact polystyrene/crystal polystyrene. A silicone release agent is interposed between the inner layer of the lid and the next adjacent, outer layer. The inner layer of the cover is sealed to the upper end of the container by a sealing process selected from heat sealing, friction, or spin, welding, ultrasonic welding, heat shrinking and adhesive sealing, the seal being effected along the flange 11 and/or at the edge 12. The inner layer of the cover may be transparent, and the outer layer, and the outside wall of the container, may include colourization, printing and decorative trim.