baber/WOPTO huggingface dataset:
Patent GB-682735-A (GB)
Title: Improvements in or relating to locks
Inventor: ATTWOOD LEONARD
IPC: E05B67/22
Filed: 1950-09-23
Abstract: 682,735. Padlocks. WORMALD PATENT LOCKS CO., Ltd. Aug. 27, 1951 [Sept. 23, 1950], No. 23359/50. Class 44. A padlock comprises a sliding bolt 3 having an arm 4 closing a slot 2 in the casing 1 and at least two locking tumblers 13, 14 pivoted to the casing at 11 and each spring loaded to bring a locking shoulder 18, 23 thereon into the path of a projection 16 on the bolt, one of the shoulders being further away from the projection than the other and having a notch capable of receiving part of the projection. The underneath tumbler 13, Fig. 5, has a spring 19, a slot 17 for receiving the projection 16 when moved to the unlocking position shown by a key 31 and a stop lug 20 normally abutting the side of the projection to retain the tumbler in a position where its locking shoulder 18 lies against the end of the projection 16. The upper tumbler 14, Fig. 1, is similar except that the shoulder 23 is spaced from the end of a rib 27 on the projection by a gap 24, the slot 17 is narrower to receive the rib 27, and the shoulder 23 has a notch 21 formed therein. The notch prevents picking by receiving the rib 27 and retaining the tumbler 14 when the bolt is displaced after the release of tumbler 13 e.g. by a picking instrument. A guard plate 15 between the tumblers 13, 14 has parts 28 partly surrounding the key pin 10 further to protect the tumblers against picking.
Patent GB-988622-A (GB)
Title: Condensation products of epihalohydrins and polyalkylene polyamines
IPC: D21H17/54
Filed: 1961-06-28
Abstract: A flocculating agent comprises a condensation product of an epihalohydrin and a polyhexamethylene polyamine of the formula NH2[(CH2)6NH]xH, where x has an average value of 2 to 6 (see Division C3).  In Example 5, an aqueous suspension of clay is treated to improve the filtration time.ALSO:The invention comprises condensation products of (A) an epichloro-, bromo- or iodohydrin and (B) a polyhexamethylene polyamine, or mixtures thereof, of formula NH2[(CH2)6NH]xH where x has an average value of 2 to 6, the proportion of epihalohydrin to polyamine being 0.2 to 0.35 gm./moles per 100 grams.  Reaction is preferably effected at elevated temperature in aqueous medium using caustic alkali as hydrogen halide acceptor.  The addition of the latter is controlled and sulphuric acid may also be added to maintain a pH of 9 to 9.5 until the desired viscosity is obtained.  The aqueous solution may be purified by treating at a pH of 5.5 to 7 with a reducing or bleaching agent, e.g. sulphites or sodium formaldehyde sulphoxylate.  Uses.-Flocculating agents, treating clays and pigments, paper manufacture, dispersing pesticides.ALSO:Condensation products of epihalohydrins and polyhexamethylene polyamines of the formula NH2[(CH2)6NH]xH where x has an average value of 2 to 6 (see Division C3), are used in the production of paper.  They enhance the deposition of fillers, e.g. clay, on the pulp and maintain the white water clear, and they may be used with, or instead of, alum.  They also impart wet strength, for which they may be introduced either in the beater or in the size box after partial drying of the paper.
Patent GB-214911-A (GB)
Title: Improvements in or relating to radiators for motor vehicles
IPC: F28F3/04
Filed: 1923-09-19
Abstract: 214,911. Wolfe, A. P. Sept. 19, 1923. Plate apparatus; tubes of special section.-Each tube 4 of a motor-car radiator is flat for part or the whole of its width, and at its front and back edges may have extensions 5 inclined or at right-angles to the tube. Corrugated plates 7 are placed on both sides of each water tube 4 so as to form air passages open along the length of the tube as well as transversely. The front of each plate 7 has corrugations 8 sloped at their rear edges 11 towards flat parts 12 which lie between punched-out corrugations 17. The flat parts rise gradually to domes 14 which have sloped edges 15 to depressions 16 between punched-out corrugations 18 at the rear edges of the plate 7. The domes alternate with further flat parts along the length of the tube. Plates formed as described may be bowed on each side of a flat tube to form longitudinal air passages. Reference has been directed by the Comptroller to Specification 211,343.
Patent GB-402201-A (GB)
Title: Improvements in or relating to anchors for preventing the creeping of railway rails
IPC: E01B13/02
Filed: 1932-08-23
Abstract: 402,201. Railway rail anchors. MILLS, Ltd., J., EXECUTORS OF, Bredbury Steel Works, near Stockport, and MACBETH, A., Broadway, The Firs, Bowden, Altrincham, Cheshire. Aug. 23, 1932, No. 23533. [Class 104 (ii).] In a rail anchor of the one-piece type comprising a metal plate formed with a hook-like jaw 10, 10a at each side, and with a rail-gripping tongue 11 engaging the under side of the rail, a rearwardly extended wing 12, 12a is formed on one or both sides to engage the edge of the rail flange when the anchor is in position. The edge of the wing may have a spring grip, and a notch 17, 17a to snap on to the edge of the rail.
Patent GB-672594-A (GB)
Title: Process for preparing aromatic amino hydroxy acid
Filed: 1950-09-26
Abstract: 4-Amino-2-hydroxybenzoic acid is obtained by the reaction of m-amino-phenol on a watersoluble bicarbonate in presence of CO2 in aqueous medium in presence of a boric acid catalyst, in the amount of at least one equivalent of boric acid to each one of aminophenol. The optimal proportions are thus 1.8-2.2 equivalents of boric acid. The m-aminophenol may be produced in situ by the action of ammonia on resorcinol, also in presence of boric acid, in the optimal proportions of 1.8-2.2 equivalents of boric acid per equivalent of resorcinol.  In the process from resorcinol the ammonia may be removed at the end of the reaction, followed by introduction of carbon dioxide and bicarbonate, or ammonium or alkali hydroxides or carbonates, or by addition of excess of bicarbonate, generating carbon dioxide.  The product is isolated as the hydrochloride. Examples are given of the reaction between m-aminophenol and CO2, when done with varying quantities of boric acid, and in several types of pressure vessel under various conditions, in presence of potassium carbonate or bicarbonate, sodium or ammonium bicarbonate, and a table compares the yields obtained in various circumstances, with and without boric acid.  The formation of dicarboxylic by-product is diminished by the addition of boric acid.  Further examples are given of the reaction between resorcinol and ammonia in presence of boric acid, followed by treatment of the product with alkali bicarbonates and CO2, to give the same product as the preceding examples.
Patent GB-915616-A (GB)
Title: Arrangement in multi-channel pulse communication systems
IPC: H04J3/20
Filed: 1961-06-29
Abstract: 915,616. Automatic exchange systems. TELEFONAKTIEBOLAGET L. M. ERICSSON. June 29, 1961 [June 29, 1960], No. 23627/61. Class 40 (4). The invention relates to the provision of supervisory signals in pulse multiplex systems of the " resonant transfer " type. Subscriber Ab1 communicates with subscriber Ab2 by transfer of charge from C1 to C2 during the closure time T of contacts K1, Kg, K2. Condensers C1<SP>1</SP>, C2<SP>1</SP> supplement the capacities of the highways T1, T2 to introduce additional resonance at a frequency such that the highways are substantially discharged at the end of the time T, any residual charge being removed by switches KA1, Kk2 between channel times. Supervisory signals V for feeding to subscriber Ab2 are introduced via inductance L<SP>1</SP> and switch Ks2, inductance L1 being considerably less than the transfer inductance L2. It is found impossible, however, to reduce the charge on C2<SP>1</SP> to zero after time # by suitably choosing L1, due to the damping of the circuit by the subscriber's instrument Ab2. The invention resides in reducing the time of closure #<SP>1</SP> of switch Ks2. By making #<SP>1</SP>=-4/5 # and L<SP>1</SP>=- it is possible to 5 6.2 arrange that the current through Ks2 at the moment of opening is substantially zero. The small residual charge on C2 at time #<SP>1</SP> is transferred to C2 during time #-#<SP>1</SP> leaving C2<SP>1</SP> substantially uncharged at time T. Fig. 2 illustrates the current and voltage waveforms concerned.
Patent GB-736152-A (GB)
Title: Improvements in and relating to refrigerators
IPC: F25B39/04
Filed: 1952-09-22
Abstract: 736,152. Refrigerators; tubular heat exchange elements. GENERAL ELECTRIC CO. Sept. 22, 1952 [Sept. 22, 1951], No. 23707/52. Classes 29 and 64 (3). A refrigerator is provided with heat transfer apparatus 3, e.g. a condenser, comprising a continuous serpentine conduit formed to provide a plurality of parallel passes 9 in the same general plane, spaced parallel wires 10 being secured to and extending transversely of the passes, parallel to the plane, the ratio of the diameter of the wires and the spacing between adjacent wires being in the range from 0.3 to 0.5 and preferably from 0.35 to 0.45, and the heat transfer apparatus 3 being mounted on a surface 2 of the-refrigerator 1 (see Fig. 1) with the plane of the passes inclined at an angle (preferably 6 degrees) to that surface. Wires 10 may be arranged on both sides of the conduit (Fig. 3). Specification 661,909 is referred to.
Patent GB-258733-A (GB)
Title: A rotary distributor or timer for the ignition system of motor vehicles
IPC: F02P7/063
Filed: 1925-09-23
Abstract: 258,733. Turner, E. W. Sept. 23, 1925. Rotary distributors have an outer body portion 1 formed integrally with two oppositely extending arms 13, 14 for attachment to the timing levers, the insulating plate 25 carrying the fixed contacts 27 being formed with a cylindrical extension 29 having a closed end containing a drilled metal plate 31 so that the contact raceway may be secured to the outer body by a single screw 32. Projections 33 on the body 2 engaging notches 34 in the raceway 25 ensure this member being replaced in the correct position. The segmental contacts 27 are separated by laminated insulating material 26 formed to resist arcing. Binding posts 22 extend from the contacts 27 through the plate 25, the leads passing out from the outer body at 9 through a protective flexible tube 23.
Patent GB-963083-A (GB)
Title: Floating vessels
IPC: B63B35/44
Filed: 1962-06-20
Abstract: 963,083. Floating vessel for oil well operations. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. June 20, 1962 [June 22, 1961], No. 23775/62. Heading E1H. A floating vessel, one embodiment of which is shown in Fig. 3 and another in Figs. 4 and 5, comprises a buoyant hull 14, 15, 16 (or 35), three upwardly-extending fluid tanks 11, 12, 13 fixed to the hull and arranged in a substantially equilateral triangular configuration, the tanks being partially filled with a liquid, and normally liquid-filled laterally-extending conduits 49, 50, 51 (or 49a, 50a, 51a) interconnecting the lower portions of the fluid tanks to permit a flow of liquid therebetween. The conduits may include flow control valves 55. The tops of the tanks may be connected by air conduits 52, 53, 54 which may include flow control valves 58, 59, 60. Specification 963,082 is referred to.
Patent GB-1504814-A (GB)
Title: Reflective coatings
IPC: B60R13/04
Filed: 1976-06-09
Abstract: 1504814 Coated products AVERY INTERNATIONAL CORP 9 June 1976 [14 July 1975] 23775/76 Heading B2E [Also in Division B5] A laminate for adhering to a substrate so as to apply a decorative metallised finish thereto, comprises a substantially transparent or translucent flexible and foldable, self-supporting elastomeric film, a reflective metal layer bonded to a surface of the film in microscopically discontinuous quantities in amount which forms an apparently optically continuous, reflective surface and which is elastically deformable in response to corresponding deformation of the elastomeric film and. on the other side of the metal layer facing away from the elastomeric film a further layer comprising an adhesive or an adhesion-promoting primer which is bondable to the substrate, the elastomeric film of the laminate bonded to the substrate forming a protective outer covering for the decorative metallised finish. The elastomeric layer may be polyurethane film and the reflective layer may be a vacuum-deposited metal such as chromium, alloys of chromium, nickel and/or iron, aluminium, allovs of aluminium and antimony, tin, magnesium. indium, platinum, silver, rhodium and palladium. There may be an opaque layer adjacent to the reflective metal laver for reinforcing the opacity of the metal layer. The opaque laver may be a metal coating or it may include a pigment. The opaque layer may comprise a layer of opaque adhesive and it may be elastomeric. The adhesive may be vinyl resin, an acrylic resin, a natural rubber, or a styrene-butadiene rubber. The elastomer layer may be coated on to a release liner of a carrier sheet and the laminate may be applied to an injection-moulded article by disposing in a mould cavity the decorative laminate releasably attached to a carrier sheet and injecting a heated moulding compound in the mould cavity enforcing it under pressure against the adhesive or bond-establishing layer at a temperature and pressure sufficient to separate the transferable laminate from the carrier sheet to produce a bond between the laminate and the moulding compound so that the moulding compound is bonded to the metallised side of the laminate so that the elastomeric film forms a protective covering for the metal layer.
Patent GB-378214-A (GB)
Title: Improved weather boarding joints
IPC: E04D3/366
Filed: 1931-08-25
Abstract: 378,214. Weatherboarding. DUCKWORTH,-T., 3, Church Lane, Essex Road, London. Aug. 25, 1931, No. 23852. [Class 20 (iv).] Weatherboarding for roofs and walls comprises boards A grooved at opposite edges to receive jointing pieces B of the form shown. For roofs, the pieces B are arranged to stretch from the ridge to the wall plate. The boards and pieces are nailed or otherwise secured in place, each board being attached by a single nail or screw to permit expansion or contraction. The boards A may be covered with cement, concrete, or other fireproof material. The weatherboarding may be used as undersheeting for slated or tiled roofs.
Patent GB-1380202-A (GB)
Title: Ketonic flavouring agent for tobacco
IPC: A23L27/20
Filed: 1972-01-19
Abstract: 1380202 Flavouring tobacco &c FIRMENICH SA 19 Jan 1972 [23 June 1971 11 Jan 1972] 23890/73 Divided out of 1380191 Headings A2B and A2C 4-methylthiobutan-2-one is used for flavouring tobacco or tobacco substitutes, or is mixed with at least one other flavouring agent to form a flavouring composition.
Patent GB-534853-A (GB)
Title: Improvements in curtain heading tape
IPC: A47H13/16
Filed: 1939-08-19
Abstract: 534,853. Suspending curtains ; woven fabrics. FRENCH & SONS, Ltd., T., and FRENCH, G. F. Aug. 19, 1939, No. 23959: [Class 52 (v)] [Also in Group IX ]  A curtain heading tape comprises a main length of tape and a plurality of open-ended hook-tubes on both sides of the main length of tape, the hook-tubes lying side-by-side, i.e. with their sides contiguous or nearly so, or being arranged singly, or in groups, at spaced intervals, and when arranged side-by-side those on one side lying directly opposite those on the other side, but when arranged singly, or in groups, at spaced intervals, those on one side lying opposite the intermediate plain parts of the tape on the other side, two sets of warps being used in forming the side-by-side hook-tubes, and one set only for forming the single hook-tubes, or group of hook-tubes, at spaced intervals on each side of the tape. As shown in Fig. 1, the hook-tubes b are contiguous and those on one side of the tape a lie opposite to those on the other side, the tape a forming the back of each hook-tube. The tape may be woven so as to consist of marginal portions only, the portions behind the hook-tubes consisting of weft threads only. Draw-cords c may be threaded through the marginal portions of the tape or may pass between the tape and the hook-tube straps. The tubes may be spaced apart at each side either singly or in groups. Intermediate plain parts of tape free from tubes may be provided by weaving with two or more wefts in each warp shed. In cases where the hook tube has a back, the connections between the tape and the tube strap may extend only a short distance from the top and bottom edges, or only along the central portions, leaving the top and bottom edges free. Specifications 459,059, 491,080 and 507,614 are referred to in the Provisional Specification.
Patent GB-302615-A (GB)
Title: Improvements in the production of high grade knifing compositions and mixed lacquerscontaining the same
IPC: C08L1/00
Filed: 1927-09-12
Abstract: 302,615. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Sept. 12, 1927. Plastic compositions containing cellulose esters and ethers.-Plastic compositions and lacquers comprise cellulose esters or ethers, or solutions thereof, with which are incorporated, preferably by intensive mechanical treatment, inorganic fillers of scaly, foliaceous, or fibrous structure, such as graphite, talc, mica, asbestos and slag wool, and comminuted organic fillers such as wood, cork, brown coal, millet, cocoanut fibre. tapioca and maize, or mixtures of these with one another or with other fillers such as lithopone, white lead, powdered slate, pumice, kieselguhr and chalk. Solvents, lacquers, resins, plasticizers and colouring matter may also be incorporated with the mixture. In an example a composition which when dry resembles cork comprises 16 parts of cork meal, 24 parts of asbestos powder, 150 parts of nitrocellulose, 160 parts of alcohol, 35 parts of tricresylphosphate and: 450 parts of acetone. Specifications 202,964 and 296,796 are referred to.
Patent GB-1173563-A (GB)
Title: Fluidised Bed Heating Systems.
Inventor: SIMS RAYMOND BERNARD
IPC: F23C10/00
Filed: 1966-05-27
Abstract: 1,173,563. Combustion in fluidized beds; steam generating. COAL INDUSTRY (PATENTS) Ltd. 19 May, 1967 [27 May, 1966], No. 23966/66. Headings F4A and F4B. Fluid is heated by being passed through heat exchangers immersed in at least two fluidized bed, fuel being partially burnt in the first fluidized bed 1, unburnt fuel and inert bed material passing through a conduit 4 to a second fluidized bed 8, and inert material being returned from the second fluidized bed 8 to the first fluidized bed 1. In an arrangement having three fluidized beds, partially burnt fuel from the first bed 1 is completely or partially burnt in the second bed 8, and bed material, which may contain unburnt fuel is passed from the second bed 8 to the third bed 11 and bed material may be recirculated from the third bed 11 to the second bed 8 or first bed 1. Hot gases pass from the first bed 1 through a cyclone dust extractor 6 to the second bed 8 and thence to the third bed 11. A separate combustion chamber may be used to burn gases given off in the first bed 1. The fluid to be heated is passed through pipes immersed in the third bed 11, to pipes in the second bed 8, and to pipes immersed in the first bed 1. Gaseous fluid bearing the heat exchange pipes in the first bed 1 is supplied to a gas turbine.
Patent GB-636420-A (GB)
Title: Improved filter for liquids
IPC: B01D35/02
Filed: 1947-08-30
Abstract: 636,420. Filters. GENERAL MOTORS CORPORATION. Aug. 30, 1947, No. 24033. Convention date, Nov. 19, 1946. [Class 46] A filter for example for use in a refrigerating apparatus consists of two braided sleeves having a substantially uniform layer of slivers of fibrous material between them. As shown, the filter is made up of an inner braided sleeve 38 of fine copper or steel wire, a layer of slivers of glass fibre 40, and an outer braided wire sleeve 42. An inner core of helical wire 36 may be provided. The various layers may be manufactured continuously and applied in succession. The braided sleeving may be of glass, cotton, or other textile threads ; the slivers of fibrous material may be of steel wool, cotton or animal wool, or rock wool. The fibrous material may be wrapped, flowed or braided on. The filter unit may be closed at one end, as shown, or may have an outlet at each end.
Patent GB-1068476-A (GB)
Title: Improvements in or relating to an apparatus for indicating the position of a sheet in a sheet-handling machine
Inventor: REICHELT GUNTER
IPC: B65H9/00
Filed: 1964-06-10
Abstract: 1,068,476. Feeding sheets. DRUCKMASCHINENWERKE LEIPZIG VEB. June 10, 1964, No. 24051/64. Heading B6B. [Also in Division G1] A sheet is fed up to two front stops and one side stop to locate it in position prior to pri ting, each stop carrying variable inductance means whereby the position of the front and side edges of a sheet relative to the stops may be determined. Said means comprises primary and secondary windings 4 and a movable core 5. The latter projects from the stop 3 and is urged outwardly by a leaf spring 6 pivoted at its lower edge to said stop. The core is moved by the sheet 2 as it comes to rest, whereby an alternating current proportional to the position of the core is induced in the secondary winding, and used to determine the position of the sheet relative to the corresponding stop. In a modification, the core 5 is urged outwardly by compressed air, Fig. 5 (not shown). In operation, the outputs from the secondary windings of the stops are applied to selector stages, when the sheet comes to rest, which emit defect pulses if said outputs lie outside preset limits.
Patent GB-775528-A (GB)
Title: Improvements in or relating to soldering devices
IPC: B23K3/03
Filed: 1955-08-22
Abstract: 775,528. Soldering. PHILIPS ELECTRICAL INDUSTRIES, Ltd. April 22, 1955 [Aug. 25, 1954], No. 24134/55. Class 83 (4). [Also in Group XI] In a soldering device for soldering objects by means of a gas heated in the device, having one or more tubes each provided with one or more apertures through which gas passes, the tubes form resistances in an electric circuit. In an embodiment a chromium-nickel tube 4, Fig. 2, closed at 5, has four apertures 8-11 and is connected in an A.C. or D.C. circuit by wires 12, 13 to be heated by current flow therethrough. Air is supplied by a pipe 7 and flows out of the apertures, being hotter at each succeeding aperture. Capacitors to which wires are to be soldered are moved along the tube above the apertures, being thereby preheated, until above aperture 11 where the air is about 400‹ C. soldering is effected with a resin-filled solder stick 14. In a modification a hand tool comprises two brass tubes 31, Fig. 3, secured in insulating discs 28, 32 and a U-shaped chromium nickel tube 29 fitted in the ends of the tubes 31. Supply wires 26 are connected to the top of the tubes 31 and air supplied through the handle flows via the tubes 31 to emerge from an aperture in the bend of the U tube as a jet heated to about 400‹ C. Nitrogen or argon may be used instead of air.
Patent GB-214549-A (GB)
Title: Improvements in apparatus for advertising & like purposes
IPC: G09F13/24
Filed: 1923-09-28
Abstract: 214,549. Orme, J. Sept. 28, 1923. Moving liquids, utilizing.-A sign comprising glass tubing has bubbled through it two differently coloured liquids stored in a container D. The liquids pass drop by drop into a funnel C<2>, and after traversing the sign escape at C<3> into a tank F. The liquids may be water and oil, coloured as desired, which may be stored in concentric compartments in the container D. Specification 10366/90 is referred to.