baber/WOPTO huggingface dataset:
Patent GB-872451-A (GB)
Title: New and improved construction of spark gaps
IPC: H01T1/04
Filed: 1957-11-07
Abstract: 872,451. Lightning arresters. OHIO BRASS CO. Nov. 7, 1957 [Jan. 4, 1957], No. 34697/57. Class 38 (4). A spark-gap assembly for a lightning arrester of the multigap magnetic arc lengthening type comprises two reinforced end-plates 120, 125, Fig. 20, carrying stepped electrodes 127, 146 spaced by a stack of identical intermediate plates 121-124 carrying similar electrodes 128-145 on opposite faces, which are electrically connected in pairs by fixing rivets, and also disposed with respect to the next pair with an angular relation of 180 degrees or less, say 120 degrees, forming an arc lengthening path. The angle of divergence between adjacent pairs of electrodes 127, 128, &c. may be 150 degrees or less, preferably 100 degrees. An arc chamber is formed between adjacent electrodes 128, 129 &c. which is vented by a channel passing from the top and around the periphery of the plate to the bottom of the chamber. The assemblies are placed with series-connected magnetic arc lengthening coils 126, 147 in a gas-filled ceramic housing 11, Fig. 1, together with series non-linear resistors 29 and other non- linear resistors shunting the spark-gaps and magnetic coils, the combination being connected between line and earth terminals 14, 24. Specifications 872,452 and 872,453 are referred to.
Patent GB-1402138-A (GB)
Title: Window constructions
IPC: E06B3/66
Filed: 1972-07-25
Abstract: 1402138 Glazing RIMAR MFG Inc 25 July 1972 34724/72 Heading E1R [Also in Division F2]  A joint comprises two bars 102, 104 abutting at an angle with axial bores 110, 112 in communication, and an angularly shaped pin 116 having legs inserted in respective bores, each leg having a bent portion 124, 126. The pin is of circular or semi-circular cross-section. The bars are used in forming a diamond pattern grill between window panes separated by a peripheral spacers (16, 18).
Patent GB-358338-A (GB)
Title: Improvements in bed-settees and like articles of furniture
IPC: A47C17/22
Filed: 1930-11-18
Abstract: 358,338. Bed-settees. HART, M. 450, Hackney Road, London. Nov. 18, 1930, No. 34734. [Class 52 (ii).] A bed-settee having a folding bed frame in three sections has the inner section 19 provided at its inner end to the settee frame, its outer end being pivoted to a jointed link 26, 25 which is pivoted at its lower end to the settee frame, near the front and extends above the joint to a point of pivotal connection with a link 31 the outer end of which is pivoted to the intermediate section 20 of the folding frames. The action of the linkage is such that on folding the frame the two outer sections pivot about the end of the inner section without relative displacement until they reach the vertical position, in which the intermediate section is then held while the outer section folds over. A hinged front panel 35 on the settee frame may be of such a height as to afford support to the intermediate section 20.
Patent GB-848177-A (GB)
Title: Improvements in or relating to electric circuit interrupters
IPC: H01H9/44
Filed: 1958-10-30
Abstract: 848,177. Arc-rupturing in switches. WESTINGHOUSE ELECTRIC CORPORATION. Oct. 30, 1958 [Nov. 6, 1957], No. 34825/58. Class 38 (5). A circuit-breaker (specifically of the airbreak type) has a magnetic blow out coil of non-circular shape biased against circumferential deformation by one or more bracing strips engaging the outer sides of each blowout coil and clamped to the pole plate. As disclosed the invention is applied to an air-break switch as disclosed in Specification 785,957 with transfer arcing horns 10, 11 slotted plates 21 a shading coil 25. blowout coils 15, 16 (only one shown) connecting the lower and outer arc horns 9, 12 to which the arc is finally transferred. The coils (e.g. 15 see Fig. 7) are clamped along their major sides by metal strips 47, 48 bolted to the pole plate (not shown) by bolts 49.
Patent GB-775038-A (GB)
Title: Improvements in or relating to the preparation of emulsions of polymers
Inventor: MILLER SAMUEL AARON
IPC: C08F2/22
Filed: 1954-12-01
Abstract: Vinyl acetate is polymerized in aqueous dispersion in the presence of one or more emulsifiers, dispersing agents or surface tension depressants, one or more stabilizers, a catalyst comprising one or more water-soluble peroxides or persalts, and an activator comprising a salt of a heavy metal, capable of existing in more than one valency state, with a strong acid, the amount of catalyst being such that the amount of available oxygen is 0.07 to 0.25 per cent and the activator 1 to 50 parts per million of the polymer emulsion, and the metal of the activator being in the higher valency state.  The emulsifiers may be sodium salts of sulphated C12 to C18 alcohols, e.g. sodium lauryl sulphate or sodium cetyl sulphate, sodium alkyl aryl sulphonates, e.g. sodium dodecylbenzenesulphonate, sulphonated carboxylates, e.g. sodium dioctyl-sulphosuccinate, or alkyl esters or ethers of polyethylene glycol, e.g. monocetyl ether of polyethylene glycol. The stabilizers may be polyvinyl alcohols with 7 to 25 per cent acetate groups, starch or modified, e.g. oxidized, starches, gums, e.g. gum acacia, sodium carboxymethylcellulose and polyammonium methacrylate. Suitable catalysts are hydrogen peroxide, sodium percarbonate and sodium perborate.  Suitable activators are ferric chloride, nitrate, sulphate or sulphonate or ferric ammonium sulphate.  The polymerization may be effected by warming the dispersion under reflux.  Part of the catalyst or catalyst and monomer may be added initially and the remainder added as the reaction proceeds. Plasticisers, fillers and pigments may be added and the emulsions may be thickened and used in the preparation of paints.  Specifications 568,886, [Group IV], 607,735 and 641,653 are referred to.
Patent GB-1392596-A (GB)
Title: Lighting installations
IPC: F21V7/00
Filed: 1973-07-23
Abstract: 1392596 Light fitting G BATTISTINI 23 July 1973 [6 Dec 1972] 34955/73 Heading F4R A light fitting comprises a fluorescent light source 13, a reflector element 1 in the form of an inverted annular trough with a square lower outer periphery. and a screening element 3. The centre part of the screen 3 is closed off by a cover 4, In other embodiments, the screen 3 is a curved cross (7, Fig. 2, not shown), or a square set either parallel to the sides of the periphery (Fig. 3, not shown), or diagonally across the periphery (Fig. 4, not shown).
Patent GB-841346-A (GB)
Title: Oil bath air filter
IPC: F02M35/026
Filed: 1958-10-31
Abstract: 841,346. Air filters. FARR CO. Oct. 31, 1958 [Aug. 18, 1958], No. 34982/58. Class 8(2). An air filter of the oil-bath type has a primary dust-laden air inlet passage 40, Fig. 2, restricted at a throat portion formed by a curved plate 42 and tongues 48 of a baffle 43 stretching across the filter casing 11 thereby providing a low pressure zone downstream of said throat, and a secondary air passage formed by the lower portion 46 of baffle 43 and a partition 52 both of which dip below the oil level in the sump 30; the pressure difference between the upstream and downstream sides of the throat being sufficient to overcome the oil head whereby air passes through the oil and up a passage 55a between plate 46 and a partition 51 to impinge against the filter element 16 which is of the panel type. In a modification, the restrictions comprise apertures 120, Fig. 6, near the bottom of a central duct 103 surrounded by an annular filter element 107 and oil drops are carried by secondary air passing through an aperture 121 into a passage 124. In a further modification, the restrictions comprise apertures 160, Fig. 7, near the top of the casing wall 142 the lower part of which together with the side 155 of the oil sump 150 forms the secondary air passage 156 ; oil drops being carried into a passage 162 to impinge against the filter element 146.
Patent GB-363100-A (GB)
Title: Improvements in and relating to ore roasting furnaces
IPC: F27B9/24
Filed: 1930-11-20
Abstract: 363,100. Roasting furnaces. DOHET, E., 20, Rue Bemel, Woluwe-St-Fierre, Brussels. Nov. 20, 1930, No. 34985. Convention date, Oct. 3. [Class 51 (ii).] Charges, agitating.- A rabble blade 13 for a mechanical roasting furnace is mounted at an angle to a stem 13a, the other end of which is formed as a pivot tc engage a hook member 12c either carried by a rabble arm, or mounted on the underside of a fixed hearth where the furnace has both fixed and rotary hearths. This construction permits easy removal of the blade and allows it to maintain contact with the hearth in spite of changes due to expansion. In the construction shown the block 12, which is adapted for mounting in a fixed hearth, has its lower part forked to accommodate the stem 13a and to provide guides 12b.
Patent GB-1398783-A (GB)
Title: Filtering system
IPC: B01D24/46
Filed: 1972-07-26
Abstract: 1398783 Backwashing filters SAYAMA SEISAKUSHO KK 26 July 1972 [28 July 1971 13 Aug 1971 5 April 1972] 34985/72 Heading B1D Liquid to be filtered is delivered to supply tank 5 by inlet 5' and is sucked by pump 2 through check valve 19 to a filter 9. The filtered liquid passes through collector 25, meter 28 and pump 3 to pipeline source 41 via check valve 40. Part of the filtrate in line 41 passes through the branch line 42 and liquid level controller 43 into the reservoir 7. When the filtering rate decreases e.g. indicated for example by means of detector 24 the pump 2 is switched off and the pump 3 is switched on. This draws liquid through one-way check valve 33 back through the filter to wash it and then out via pipe 22 through one way check valve 15 into the washing tank 10 for discharge. The washing tank 10 is maintained at the low liquid level (LLL) by liquid supplied under controller 13. By maintaining this level any back leakage in the check valve 19 and 15 will be liquid and not air. Filter 9 may be a multi-layer bed of sand and anthracite, or particulate resin or a sheet of net laminated cloth or bonded felt or natural/synthetic fibres.
Patent GB-764532-A (GB)
Title: Improvements relating to the manufacture of germanium semiconductor elements
Inventor: RODDA SIDNEY
IPC: H01L21/302
Filed: 1953-12-16
Abstract: Germaniun semi-conductor elements are made by heating a slab of germanium to a temperature within the range of 500 DEG  to 750 DEG C. passing the slab through heated rollers to reduce it to a sheet of the required thickness, and then stamping or punching discs from the sheet while it is still within the prescribed temperature range. Preferably the rolling and stamping processes are carried out in an inert atmosphere, such as argon.  The discs may finally be heat-treated, for example, by heating at 500 DEG C. for several hours in an atmosphere of argon to restore the electrical resistance characteristics of the germanium.  Reference has been directed by the Comptroller to Specification 737,950.
Patent GB-191053-A (GB)
Title: Improved method of and means for controlling the air supply and flue dampers of furnaces
IPC: F23N3/00
Filed: 1922-12-27
Abstract: 191,053. Groll, C. Dec. 27, 1921, [Convention date]. Air supply, regulating.-By opening the door of a furnace for stoking purposes, the smoke damper is opened and the throttle valve of the air blower is closed and remains closed until the door is closed, when it is automatically opened and allowed to close gradually under the control of a cataract which also controls the automatic closing of the damper. The furnace door is connected by a chain 2, Figs. 1 and 2, to a slide 1, which is raised when the door is opened, and its motion is communicated by a chain 4 to the cataract bell 3, by a chain 9, lever 8, and link 32 to the damper-actuating rod 25, and by the chain 7, lever 6, and link 13 to the rod 12 connected to the throttle of the blower (not shown). The counterweight 5, connected by chains 27, 29 to the rod 12, is also raised. The motion of the cataract bell 3 is communicated by rods 15, 16 and bellcrank levers 17, 18 to links 19, 20, which permit the stepped cams 35, 34 to be moved by counterweights 23, 24 into engagement with a projection 26 on the counterweight 5 and with the rod 25 respectively. A safety-bolt 37 engages with a rack 14 on the rod 12 to retain it in its raised position. During the closing of the door, the slide 1 falls and the link 10 attached thereto finally releases the safety-bolt 37 and 'allows the rod 12 to fall and open the blower throttle valve. The bell of the cataract also falls and the cams 34. 35 are withdrawn from engagement with the damper rod 25 and the counterweight 5 to allow the damper and the throttle valve of the blower to close. As shown in Fig. 10, the steps 42 of the cams are mounted in a frame 41 and may be adjusted in length so as to regulate the time of closing of the damper and throttle valve. The furnace doors are connected to the apparatus, as shown in Fig. 6, by chains attached to counterweighted quadrants 50 mounted loosely upon a spindle 51 and provided with tappets adapted to engage with a lever 52 keyed to the spindle and connected to the apparatus by a chain 53. When tipping doors are used, each door is connected by a link to a leyer loosely mounted upon a shaft and provided with a tappet adapted to engage with a sleeve keyed to the shaft which is connected by a chain to the apparatus.
Patent GB-438997-A (GB)
Title: Improvements in or relating to electromagnetic track brakes
IPC: B61H7/08
Filed: 1934-12-10
Abstract: 438,997. Electromagnetic brake blocks. KNORR - BREMSE AKT. - GES., 9, Neue Bahnofstrasse, Lichtenberg, Berlin. Dec. 10, 1934, No. 35473. Convention date, Nov. 12. [Class 103 (i)] [See also Group XXXV] In electromagnetic track brake blocks for vehicles, the polepieces or the magnet body are transversely subdivided into sections capable of relative vertical movement to enable the braking surface to accommodate itself to unevennesses in the rail surface with which the block engages. The polepieces may also be subdivided longitudinally. In Fig. 1, the polepiece sections 4, 6 are bolted to' the side members 1 and the intermediate sections 8 are loosely strung upon a wire 7 mounted in the sections 4, 6. A brass strip extending the length of the magnet and screwed to the inner face of the sections 4, 6 prevents the sections from sliding off the wires 7 before attachment to the members 1 and also prevents contact between opposite sections in the assembled magnet. According to Fig. 4, the polepieces as well as being transversely subdivided are also subdivided longitudinally into plates 12, 13, 14 having interengaging hook-like projections as shown, the inner plates being suspended on a longitudinal non-magnetic strip 11. Support of the sections by means of a strip 11 may be adopted when the sections are only subdivided transversely. In a further construction, the whole of the side members 1 with the core parts 2 which extend transversely through the coil 3 are subdivided transversely, the end pairs of sections being secured together by transverse bolts and the intermediate sections being mounted on longitudinal wires or rods similar to the wires 7, which extend through the sections.
Patent GB-395251-A (GB)
Title: An improved process for making skins from cellulose solutions
IPC: B29C48/03
Filed: 1932-12-15
Abstract: Films obtained by extruding solutions of cellulose solutions into a coagulating bath are <PICT:0395251/IV/1> brought together before they are completely coagulated and subjected jointly to the further treatments.  The incompletely coagulated films may be brought also into contact with a finally formed flat structure, for example, of a woven, knitted, or braided fabric, metal, wood, paper, or the like. Preferably the films are forced together by mechanical means during or after bringing the same together.  In the Figure, a fabric 1 is introduced between two incompletely coagulated films extruded from slots 2 and 4, and the compound sheet passed between the pressure rollers 8 and 11.  The fabric may have the cellulose film or films attached to one side only.
Patent GB-1398785-A (GB)
Title: Bleaching assistants and the preparation thereof
IPC: C11D17/06
Filed: 1972-08-01
Abstract: 1398785 Detergents containing bleach HENKEL & CIE GmbH 1 Aug 1972 [2 Aug 1971 21 Feb 1972] 35808/72 Heading C5D [Also in Divisions B1 and D1] A bleaching assistant suitable for use in pulverulent washing and bleaching compositions, comprises pear-shaped to globular particles having a diameter of 0À01 to 2À5 mm., at least 70% of which have a diameter of 0À1 to 1 mm. and the particles being composed of: (a) 10-70% by weight of at least one activator for per-compounds which is selected from N-acyl and O-acyl compounds and carbonic acid esters of EW not more than 170, the activation value of which for the percompounds amounts to more than 3, and (b) 30-90% by weight of a mixture of saturated fatty acids (12-24 C) and a polyethylene glycol with an average molecular weight of 1000-20,000, in the proportion by weight of from 5 : 1 to 1 : 4, preferably 3 : 1 to 1 : 2À5, the melting point of the activator/acid/polyethylene glycol mixture being above 35 C. Preferably at least 90% by weight of the particles have a diameter of from 0À1-1À6 m. The bleaching assistant A may be present in admixture with further pulverulent bleaching components B, such as a per-compound in the weight ratio A : B of from 1 : 5 to 5 : 1 and such that 0À05-2 mol of activator is present per gram atom of active oxygen, and pulverulent washing composition components C, many of which are specified. The proportion by weight of component C to the sum of components A and B may be from 1 : 2 to 10 : 1, preferably from 1 : 1 to 5 : 1. In the examples, bleaching assistants comprise, by weight, (i) 37% tetraacetyl glycoluril, 46% fatty acid mixture (94% stearic acid and 6% palmitic acid) and 17% polyethylene glycol of molecular weight 10,000; (ii) 38À5% tetraacetyl glycoluril, 23% stearic acid and 38À5% polyethylene glycol (MW 10,000); (iii) 40% tetraacetyl glycoluril, 30% polyethylene glycol (MW 4000) and 30% fatty acid mixture (8% palmitic acid, 72% stearic acid, 8% arachidic acid and 12% behenic acid), and (iv) 40% tetraacetyl glycoluril, 30% stearic acid and 30% polyethylene glycol (MW 10,000). In further examples, (v) 27 PBW of the bleaching assistant (i) is mixed with 10 PBW sodium perborate tetrahydrate and 63 PBW of a pulverulent washing composition having the following constituents based on the weight of the total composition: 7% ndodecyl benzene sulphonate (Na salt), 2% oleyl alcohol with 10 ethylene glycol ether groups, 33% pentasodium triphosphate, 6% soda, 3À5% sodium silicate (Na 2 O: SiO 2  = 1: 2), 2À5% magnesium silicate, 0À2% sodium ethylene diaminotetraacetate, 0À3% optical brightener, 1% sodium carboxymethyl cellulose, and 7À5% water; (vi) 30À3 PBW of the bleaching assistant (ii) are mixed with 10 PBW sodium perborate tetrahydrate and 57À7 PBW of the abovementioned pulverulent washing composition; (vii) 28 PBW of the bleaching assistant (iii) are mixed with 10 PBW of sodium perborate tetrahydrate and 62 PBW of the washing composition. The bleaching assistants may be prepared by a spray-drying process.
Patent GB-1487927-A (GB)
Title: Hot rolling of copper and its alloys
IPC: C10M173/02
Filed: 1974-08-14
Abstract: 1487927 Aqueous lubricants TOHO CHEMICAL INDUSTRY CO Ltd 14 Aug 1974 35833/74 Heading C5F In a process for the hot rolling of copper or of its alloys, there is used a single-phase lubricant comprising a solution in 1000 parts of water of 6-200 parts of a carboxylate, sulphate, sulphonate or phosphate anionic surface-active agent, and 0À8-200 parts of an alcohol, a glycol or glycol ether containing at least one free hydroxyl group. In particular, the anionic surface-active agent may be a salt of the formula where R is an alkyl or alkenyl group of 12 to 22 carbon atoms, or a salt of the formula where R<SP>1</SP> is an alcohol residue of 12 to 18 carbon atoms, or a petroleum sulphonate of the ion M, or a salt of the formula where R<SP>111</SP> is the residue of an unsaturated fatty acid, or a salt of the formula where R<SP>1111</SP> is an alkyl or alkenyl group of 11 to 21 carbon atoms, or a salt of one of the formulµ or where R<SP>v</SP> is an alcohol residue of 12 to 18 carbon atoms and in each case M is Na, K, NH 4  or the protonated ion of NH 2 C 2 H 4 OH, NH(C 2 H 4 OH) 2  or N(C 2 H 4 OH) 3 . The lubricant may also comprise a non-ionic surfactant, e.g. polyoxyethylene dilaurate or dioleate. The pH of the lubricant is preferably above 8.
Patent GB-381034-A (GB)
Title: Improvements in or relating to screw propellers
IPC: B64C11/18
Filed: 1931-12-29
Abstract: 381,034. Screw propellers. TOTH, J., 2, Csepreghy Utca, Budapest. Dec. 29, 1931, No. 35900. Convention date, Dec. 31, 1930. [Class 114.] A screw propeller is designed so that the portion / of the driving face adjacent the leading edge a forms a straight line in the cross section and is of greater pitch than the portion j which also forms a straight line. The area of the surface f is greater than that of surface j.
Patent GB-435786-A (GB)
Title: Improvements in or relating to electric discharge devices
IPC: H05B41/04
Filed: 1934-12-17
Abstract: 435,786. Supplying consuming devices. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, HARRIS, N. L., RANDALL, J. T., and RYDE, J. W., c/o General Electric Co., Wembley, Middlesex. Dec. 17, 1934, No. 36148. [Class 38 (iv)] Comprises a number of discharge lamps 8 in parallel each having one or both of the electrode heaters 1 1<1> in series with a stabilizing impedance 6 and a switch 2 wherein a single delay mechanism is provided for opening all the switches a predetermined time after the discharge lamps are connected to the supply. This gives time for the electrodes to heat ; thereafter they are maintained at the operating temperature by the discharge current. The stabilizing impedance may form part of one of the electrode heaters. Regulating impedances for the heaters may be provided these being arranged so as to be cut out of circuit when the switches are open. The switches may be formed by a multi contact contactor the operating circuit of which contains a time delay switch. The Specification states that the delay period may be determined by events occurring in the discharge tubes. Specifications 434,614 and 436,266, [both in Group XL], are referred to.
Patent GB-1476127-A (GB)
Title: Agents for the control of harmful microorganisms
IPC: A61K8/00
Filed: 1974-08-16
Abstract: 1476127 Antimicrobicidal composition CIBA-GEIGY AG 16 Aug 1974 [16 Aug 1973] 36226/74 Heading A5E [Also in Division C2] Compositions for the control of harmful microorganisms comprise as active substance a compound of formula I wherein X represents halogen and n denotes an integer from 1-11. The preferred compounds are those in which X is Cl or Br and n is 1-6. The compositions can contain other active ingredients and can be formulated with the usual additives in the usual carriers in liquid and solid form.
Patent GB-322891-A (GB)
Title: Improvements in or relating to means for supporting overhead electric lines or conductors
IPC: H02G7/20
Filed: 1928-12-10
Abstract: 322,891. Pirelli General Cable Works, Ltd., and Harding, J. R. Dec. 10, 1928. Posts, attachments for; systems of supporting cables and conductors.-A pole top for supporting overhead electric conductors consists of a single length of metal bent into a parallel-sided loop, the end portions of the side members of which are bent to form sloping laterally extending arms with short horizontal ends, the top of the loop and the ends of the lateral arms carrying upright insulators. A loop A, the side members a of which are secured to a pole C by bolts D, has its ends bent to form sloping lateral members by terminating in short horizontal ends B. Holes F are made at the top of the loop and in the ends B to hold upright insulators E. The strip of metal forming the pole top is of channel section with the flanged portion directed inwards to the pole and the pole may extend part, e.g. half, of the way along the loop. The Provisional Specification states that the pole top may be made in two lengths bolted together at the top of the loop.