baber/WOPTO huggingface dataset:
Patent GB-1496012-A (GB)
Title: Linear magnetic actuator
IPC: H02K41/035
Filed: 1975-02-06
Abstract: 1496012 Linear motors XEROX CORP 6 Feb 1975 [14 Feb 1974] 5121/75 Heading H2A A linear actuator, e.g. for a read/write head in a disc store, includes a rod slidably mounted in a bore in an outer pole, the rod being fixed to a hollow coil assembly carrying a winding connected to a D.C. supply wherein an inner pole provides a low reluctance path through the coil assembly and is connected to means providing a low reluctance path around the external surfaces of the actuator. Four rectangular barium ferrite magnets 2 are fixed on the outside of a mild steel block 4 having a cylindrical central bore. Inside the bore an aluminium wire coil 24 is supported on a rod 11 slidably mounted in the bore and passing out through end-plate 18. The rod carries the read/write head (not shown). Within the coil 23 is a central pole comprising four sector shaped pieces 8 which have saw-cuts 23 almost severing each piece in half (Fig. 3, not shown). The pieces 8 are fixed at each end to plates 18, 20 which are secured to the outer plates 10, 12 (and 14, Fig. 1, not shown) to complete the magnetic circuit. The gaps 23 ensure saturation only at these points during peak currents avoiding distortion of the field at any other points in the magnetic circuit. The impedance of the coil 23 during current changes is reduced by plating the inside of the bore with copper 13 (or fixing a copper sheet or tube thereto).
Patent GB-634578-A (GB)
Title: Improvements in and relating to chemical reactions involving the evolution of fumes of oxides of nitrogen
IPC: C01G5/00
Filed: 1947-02-21
Abstract: <PICT:0634578/III/1> Higher oxides of nitrogen, produced, for example, by the reaction of nitric acid on silver, copper, bismuth, selenium, &c, are disposed of by passing them, entirely free from air, and at substantially atmospheric pressure, over and in contact with a column of granular or nodular material, and simultaneously flowing over said column, in the same direction of flow of the oxides, oxygen gas and a thin film of aqueous liquid which forms a solvent for the oxides, and regulating the oxygen gas flow so as to be only slightly in excess of that required to convert the oxides to nitric acid.  The granular material may be quartz or porcelain, in which case the aqueous liquid is water, lime water or caustic alkali, or it may be the same metal, e.g. silver or bismuth, as that being reacted with the nitric acid.  As shown, nitrogen oxide fumes produced by dissolving silver bars 3 in nitric acid in a pan 1, e.g. of stainless steel, pass to the upper end of a stainless steel tower 8 formed with a water seal 11 and to which are supplied water, silver nitrate solution or dilute nitric acid, and oxygen via pipes 27, 28. The tower contains granular silver 20 supported on a mesh 19 and supplied from hopper 13.  A thermostatically-controlled water heating jacket 21 is provided to bring the tower to, say, 65 DEG  C. at the beginning of the reaction. Silver nitrate solution formed passes to collecting vessel 17, the supply of oxygen being adjusted so that practically no gas bubbles pass through manometer 25.  Specification 634,189 is referred to.
Patent GB-1367059-A (GB)
Title: Device for delivering bar-shaped objects eg cigars
IPC: A24C1/38
Filed: 1973-02-01
Abstract: 1367059 Feeding to conveyers/discharging hoppers ARENCO-PMB NV 1 Feb 1973 [1 Feb 1972] 5141/73 Headings B8A and B8S Rod shaped articles, e.g. cigars are supported in a hopper 1 by clamping members 3 which engage the lowermost articles, and are delivered to a conveyer 2 by a vertically reciprocal carrier 4 which, in its uppermost position reciprocates horizontally to align the articles into rows. The carrier comprises carrying strips 9 and clamping members 11. The hopper is divided by a plate 14 to facilitate alignment of the articles.
Patent GB-330744-A (GB)
Title: Improvements in, and relating to, rotary perforating, scoring, or creasing machines and the like
IPC: B26D7/20
Filed: 1929-11-15
Abstract: 330,744. Bowns, S. Nov. 15, 1929. No Patent granted (Sealing fee not paid). Creasing and scoring. - A rotary perforating, scoring, or creasing machine has cutter shafts b, c carried in frames q, s pivoted on a rod r. In a slot in the lower frame is journaled a feed-roll n which contacts with, and is driven by, the lower blade holders m. The frame q is clamped by a clip wand is adjusted by a screw t.
Patent GB-1426551-A (GB)
Title: Double glazing units
IPC: E06B3/66
Filed: 1972-02-03
Abstract: 1426551 Double-glazed window J P BURKE 3 May 1973 [3 Feb 1972] 5206/72 Heading E1R A real or imitation leaded light 16 is disposed between the opposed glass panes 11 of a double glazed unit having a peripheral frame 12 of rectangularly sectioned, tubular metal placed between the panes 11, the whole unit being symmetric about a central plane parallel to the panes. The leaded light may be unsecured or may be clipped at 17 to the frame 12. The frame may contain a desiccant 14. For Figure see next column
Patent GB-196752-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/24
Filed: 1922-02-23
Abstract: 196,752. Gren, A. L. Wenner-. Feb. 23,1922. Vacuum cleaning-apparatus.-In a portable Vacuum cleaner having at the handle end a radially disposed air outlet such as 6, the outlet is arranged to deliver sideways or downwards or both, in directions away from the operator. The suction nozzle can be detached and fitted to one of the exits, so that the appliance can be used as a blower. The exits have inner bevelled surfaces that facilitate the attachment of the nozzle.
Patent GB-300059-A (GB)
Title: Improvements in means for preventing the sinking of ships
IPC: B63B1/12
Filed: 1928-02-20
Abstract: 300,059. Nagy, L. Feb. 20, 1928. Air casings, non-structural.-Devices for preventing the sinking of ships of the kind comprising pontoons 11 hinged to the side of the vessel and manipulated by flexible gear are controlled by ropes 19, 20 attached to brackets 15 on the pontoons and passed round drums 22 on a fore-and-aft shaft driven through suitable gear from the propeller shaft. The pontoons are controlled by levers 28 linked to slides 27 working in towers 24 anchored to the deck and operated from the fore-and-aft shaft. The pontoons are supported in their raised position by hooks 52. In a modification, the slides 27 are operated by screw gear.
Patent GB-838569-A (GB)
Title: Alkenoic acids
IPC: C07C59/48
Filed: 1958-02-19
Abstract: The invention comprises 3-hydroxy-7,11-dimethyl - 3 - phenyl - 6,10 - dodecadienoic acid, alkali metal and alkaline-earth metal salts thereof, and a process for the preparation thereof which comprises reacting 5,9-dimethyl-1 - phenyl - 4,8 - decadien - 1 - one with an a -halo-acetate in the presence of zinc and saponifying the ester thus formed to the corresponding salt, which is then hydrolysed to the free acid.  Said 5,9 - dimethyl 1 - phenyl - 4,8 - decadien-1-one is obtained by reacting a geranyl halide with a C1-5 alkyl benzoyl acetate in the presence of a compound capable of converting the keto ester to a metallo derivative to form an a -geranylbenzoyl acetate, converting this to a salt with a base, and then reacting the salt with an acid.  In the reaction between geranyl halide and lower alkyl benzoyl acetate, metallic sodium, sodium hydride or sodium alcoholate may be employed.  As base Ba(OH)2, sodium hydroxide or potassium hydroxide are suitable.  Examples describe the preparation of 3-hydroxy-3 - phenyl - 7,11 - dimethyl - 6,10 - dodecadienoate, and the sodium and calcium salts thereof.
Patent GB-978087-A (GB)
Title: Dyestuff mixtures containing monoazo dyestuffs of the benzene-azo-benzene series
Inventor: MERIAN ERNEST
IPC: C09B31/062
Filed: 1961-02-16
Abstract: The invention comprises dyestuff compositions which comprise beside a dye of formula <FORM:0978087/C4-C5/1> wherein x is a chlorine or bromine atom, y is a hydrogen atom or the methyl or ethyl radical, R1 is a methyl, ethyl or b -cyanoethyl radical and R2 is a mono- or dihydroxyalkyl radical having 1-3 carbon atoms or such a radical etherified with a C1-C6 alkanol or esterified with a C1-C6 alkanoic acid, at least two dyes of the general formulae <FORM:0978087/C4-C5/2> wherein R3 is a hydrogen atom or a hydroxyalkyl radical, R4 is -NHR5 when R6 is a hydroxyl group or hydroxyl when R6 and R7 are alkylamino and/or hydroxyalkylamino groups, R6 is a hydroxyl, alkylamino or hydroxyalkylamino group, R7 is an amino, alkylamino, hydroxyl or hydroxyalkylamino group, R8 is a cyano or alkyl- or aryl-sulphonyl group, R9 is an alkyl or aryl -NHCO- group, R10 is a hydrogen atom or alkoxy group, R11 is a hydrogen atom or an alkyl or alkoxy group, U is an alkyl group, W is a hydrogen atom or a nitro or alkylsulphonyl group, Z is a hydrogen atom or an alkyl group and m is 1 or 2. The mixtures give navy blue and black shades on hydrophobic fibres such as cellulose acetate and polyester fibres.  Examples are specified.  Specification 806,271 also is referred to.
Patent GB-156019-A (GB)
Title: Improvements in or in connection with the soldering, tinning or coating of aluminiumor aluminium alloys
IPC: B23K1/00
Filed: 1920-02-24
Abstract: 156,019. Raworth, J. E., (Dean, J.). Feb. 24, 1920. Soldering.-In a process of soldering, tinning, or coating aluminium or aluminium alloys, the surfaces of the metals are scratched to remove oxide and the solder or alloy is applied by a rubber consisting of a pad or roll of steel wool. In carrying out the process, the metal to be coated is heated to the melting-point of the solder or alloy such as an alloy of zinc, tin, and lead, which is then melted on the surface and distributed by the rubber. The rubber may be carried by a handle or may be mounted in a machine and rotated or oscillated. In coating an aluminium surface, after it has been tinned in the above-described manner it is immersed in molten tin and then buffed to a higher polish, after which it is electroplated. The machine driven rubber may also be used in filling holes in aluminium castings. Lengths of aluminium wire may be joined by this process, thus rendering aluminium wire suitable for telegraph, telephone and other electrical purposes.
Patent GB-525240-A (GB)
Title: Improvements in wall paper and similar sheet materials and in methods of attachment thereof to a surface
IPC: B44C7/00
Filed: 1939-02-20
Abstract: 525,240. Papering walls &c. CLAYTON, T. A. Feb. 20, 1939, No. 5671. [Class 20 (iv)] Wallpaper and other patterned sheet fibrous material is coated with a "dry rubber adhesive," during manufacture, whereby it may be removably attached to a surface coated with a similar adhesive merely by applying pressure, without distortion of the pattern markings, the sheet material being trimmed along an edge to define points adapted to register with corresponding points of pattern markings on an adjoining strip having a trimmed edge to be placed in lateral abutment therewith. The wallpaper 14, Fig. 1, is coated during manufacture with " dry rubber adhesive" 15, and is also trimmed to provide for proper registration of adjacent sheets on the wall. The wall surface 12 is also provided with a coat of " dry rubber adhesive " 13. The sheet 14 is progressively attached to the wall under pressure, a tool such as a paperhanger's brush being used, which due to the flexing of the bristles will cause an imperfect bond between the two adhesive coatings 13, 15 so that the sheet may be removably attached to the wall and reattached when required without further application of adhesive. The sheet 14 may be deeply embossed to form hills and valleys and the adhesive coating 15 applied thereto conforms to the general contour of the sheet. In a modification, a wallpaper sheet 25, Fig. 5 is prepared with a coating 26 of an adhesive-resistant material which serves to give rigidity to the fibres of the sheet and prevents perfect bonding between the sheet and the subsequently-applied "dry rubber adhesive" 27 ; this adhesive-resistant material may comprise sodium carbonate, latex, casein and water. The sheet 25 may be removed from the wall at any time by separation along the line of bond between the coatings 26, 27 when the bond between such coatings is less than that between the coating 27 and the coating 24 on the wall surface 23. The sheet may be provided with the adhesive arranged in isolated or scattered areas only. The paper strips are trimmed, during manufacture, to define the registration points 39, 40, Fig. 11, of the pattern of the strips. The " dry rubber adhesive" coatings are of such a kind that when in a dry state adherence will occur only between coatings having a common rubber base, such base being of latex or rubber compounds such as rubber cement and plasticized rubber. The coatings may have their adhesive power reduced by incorporating therein material such as zinc oxide, sulphur, or calcium carbonate.
Patent GB-470976-A (GB)
Title: Temperature control of reaction vessels
IPC: B01J8/02
Filed: 1936-02-25
Abstract: <PICT:0470976/III/1> A converter as disclosed in the parent Specification contains at least one manifold E composed of nested inlet and outlet conduits 11, 12, which is supported so as to permit relative transverse movement to avoid stresses due to temperature change.  Several manifolds may be connected to common inlet and outlet headers 14, 17.  The manifold system is rigidly connected to the converter shell at only one point, the second connection 18 being looped to give flexibility.  The heat-exchange units D fed by the manifolds enter the chamber through open ended conduits 10 mounted in the tube sheet 6 and are supported by stop members 21 resting on these conduits so as to provide closures for them while permitting lateral movement of the units.  The inner manifold tubes have projections 20 which maintain them in concentric relation with the outer tubes.
Patent GB-508600-A (GB)
Title: Improvements in or relating to connecting rods
IPC: F16H21/34
Filed: 1938-02-23
Abstract: 508,600. Connecting-rods. TOWLER, C. Feb. 23, 1938, No. 5674. [Class 122 (1)] One or more auxiliary connecting-rods are secured to hollow pivot pins which are free to oscillate in bearings in bosses on the main connecting rod and are keyed to their auxiliary connecting rods by pegs. In Fig. 1, the hollow pivot pin 9 is secured to the auxiliary connecting rod 8 by the peg 10 and is free to oscillate in the bushes 7, held non-rotatably by means of flanges 7a, in the bosses 6a on the main connecting rod. The peg 10 is retained in position by a nut 13, the conical surfaces of which bear against complementary surfaces 9a in the bore of the pin 9 and expand it to grip the eye of the rod 8. Alternatively, the peg is retained in position by a spring or by a simple nut and bolt. Oil fed under pressure through holes 12 in the crank-pin finally passes through holes 7b in the bearing bush 7 and effects lubrication of the pin.
Patent GB-1357247-A (GB)
Title: Variable drives
IPC: F16H61/56
Filed: 1972-02-08
Abstract: 1357247 Hydrodynamic couplings D A KILLIP 8 Feb 1973 [8 Feb 1972] 5688/72 Heading F2C A fluid coupling comprises a driving casing 2 carrying centrifugally controlled variable incidence pump blades 22 surrounding a paddle wheel array of turbine blades 14 rotatable within the casing 2 and fast with a driven shaft 16. The pump blades 22 are carried by pins 24 which pass through radial holes in the casing 2 and have weighted heads 26. Cam grooves 28 in the pin 24 are engaged by spring pressed balls 30 carried by the casing 2. The pins 24 and blades 22 are urged radially inward by springs 36. In their radially inward position the blades 22 lie in the plane of rotation of the chamber 2 and thus impart little velocity to the liquid within the chamber 2. As the speed of the driving chamber 2 increases the pins 24 move radially outward and the interaction between the balls 30 and cam grooves 28 rotate the pins 24 and blades 22 towards a position in which the blades 22 are perpendicular to the plane of rotation of the chamber. The blades 22 thus impart an increasing velocity to the liquid within the chamber as the speed of the chamber rises. When the chamber 2 approacehs maximum speed friction pads 38 on the outer ends of the pins 24 engage a drum 20 fast with the driven shaft 16 to provide a direct-drive. A friction clutch 10 is provided between an input shaft 6 and the driving chamber 2. In Fig. 3 (not shown) circular pump blades (22) pass through circular apertures in the turbine blades (14). The pump blades (22) are carried by radial pins (24<SP>1</SP>) rotatable in the chamber (2). The pins (24<SP>1</SP>) have cam slots (28) engaged by spring pressed balls (30) carried by a radially slidable weight member (26). When the weight member (26) moves radially under centrifugal force the interaction between the cam slot (28) and balls (30) rotates the pump blades. A spring (52) between the chamber (2) and weight member (26) urges the latter radially inward.
Patent GB-976165-A (GB)
Title: Electrically resonant cavities
Inventor: SPOONER PETER WILLIAM
IPC: H01P1/28
Filed: 1962-02-15
Abstract: 976,165. Variable cavity resonators. JOSEPH LUCAS (INDUSTRIES) Ltd. Feb. 15, 1963 [Feb. 15, 1962], No. 5787/62. Heading H1W. The face of the piston 6, Fig. 4, or the closed end of a slidable-piston resonant cavity, is formed by concentric annular strips 11, Fig. 5, or a spirally wound strip of electrically conductive material adjacent layers of which are separated, e.g. spatially or by insulating material, and whose thickness is so small as to render negligable capacitance effects between layers. This construction minimizes propagation of unwanted modes, especially at frequencies so high that the length of the cavity is less than its diameter. The conductor 11 may be mounted on a layer 9 of resin-nickel powder on the face of the piston 6. The sides of the cavity may also be rings or a helical strip of a conductive material.
Patent GB-1260466-A (GB)
Title: Improvements in filtration
Inventor: PRYOR ARTHUR HENRY
IPC: B01J20/22
Filed: 1968-02-06
Abstract: 1,260,466. Filter aid. A. H. PRYOR. 6 Feb., 1969 [6 Feb., 1968], No. 5877/68. Heading BID. Particles of rigid polyurethane foam, of open or closed cell type, are used as filter aid when filtering swimming pool water, oils, solvents or varnishes of the alkyd resin or oil-based types. Particles are prepared by grinding and are used in various size ranges from 20 to 80 mesh per linear inch. The filter aid may be used to precoat a filter element or be mixed with the liquid being filtered. In an example an alkyd resin-white spirit mixture is heated and filtered through a pre-heated filter.
Patent GB-734043-A (GB)
Title: Improvements relating to pencils
IPC: B43K21/00
Filed: 1953-03-04
Abstract: 734,043. Pencil holders. WOODHOYD TOOLS, Ltd., and ECROYD, J. W., [Representative of ISHERWOOD, F. P.], and ECROYD, J. W. May 27, 1954 [March 4, 1953], No. 5981/53. Class 146(3). A pencil holder having a thin flat lead 6, especially for drawing narrow lines, comprises a body 2 provided with a channel 3 into which the lead 6 is pressed by a leaf spring 4, the body 2 being slidable in a sleeve 1 carrying a plunger 7 bearing on the inner end of the lead. When the body 2 is slid into the sleeve 1 the lead is projected by the plunger 7. The spring 4 is bent at its inner end to prevent the body 2. sliding too easily in the sleeve 1. The body 2 is tapered towards its outer end so that the tip is no wider than the lead 6.
Patent GB-503819-A (GB)
Title: Improvements in sensitive material for three-colour photography
IPC: G03C7/30
Filed: 1937-07-07
Abstract: 503,819. Colour photography. KODAK, Ltd. July 7, 1937, No. 6039/39. Convention date, July 7, 1936. Divided out of 503,752 and addition to 500,717. [Class 98 (ii)] Multilayer sensitive material as described in Specification 500,717 has colour formers insoluble in water or in a solution of sodium carbonate in water, incorporated in one or more of the layers. The description is otherwise identical with that of Specification 503,816. Specifications . 376,794, 376,795, 458,664, 498,869, 498,870, 498,871, 498,875, 500,826 (as open to inspection under Sect. 91), and 503,824. also are referred to.
Patent GB-812805-A (GB)
Title: Cathode ray tube
IPC: H01J29/18
Filed: 1957-02-22
Abstract: 812,805. Electroluminescent screens. EGYESULT IZZOLAMPA ES VILLAMOSSAGI R.T. Feb. 22, 1957 [Feb. 22, 1956], No. 6063/57. Addition to 809,914. Class 39(1). A cathode ray tube is provided with a screen comprising a first transparent conducting coating 2, two electroluminescent layers 4, 5 and a second conducting coating 3, the electroluminescent layer 4 when impacted by electrons producing a short wavelength light capable of exciting the electroluminescent layer 3, the required field being applied to layers 2, 3 by leads 6, 7. The layer 4 may be zinc sulphide activated by silver, calcium tungstate activated by lead and cerium or a halophosphate activated by antimony. The layer 3 is preferably zinc sulphide activated by copper the thickness of each layer 2-5 may vary from 2 to 20 microns.
Patent GB-1525337-A (GB)
Title: Element for connecting together two parts particularly for use in windscreen wipers
IPC: B60S1/38
Filed: 1976-02-17
Abstract: 1525337 Connecting element for windscreen wiper assembly DUCELLIER ET CIE 17 Feb 1976 [3 March 1975] 06066/76 Heading A4F A plastics connecting element for articulatedly connecting together yokes 1, 2 forming part of a windscreen wiper assembly comprises projections 4 which snap fit in a hole 5 in yoke 2, support arms 9, 10, and pivot studs 7 provided with inclined ends 7a which snap fit in holes 8 in yoke 1.
Patent GB-938946-A (GB)
Title: Voltage-controlled oscillator
IPC: H03C3/00
Filed: 1962-02-16
Abstract: 938,946. Pulse modulation circuits; transistor oscillator circuits. BENDIX CORPORATION. Feb. 16, 1962 [Feb. 28, 1961], No. 6129/62. Classes 40 (5) and 40 (6). A multivibrator comprising transistors 11, 12 which has its output pulse train frequency modulated by an input control signal E IN , is provided with a temperature compensating network including a semi-conductor diode 33 in the circuit supplying the operating potentials for the transistors. The diode 33 has a forward voltage drop which varies with temperature at a rate proportional to the temperature variation of the base-emitter voltage of the transistors, and a further temperature-sensitive resistor 37 may be included in the network by switch 55 for final adjustment of the temperature characteristic. A variable resistor 35 controls the deviation sensitivity and the addition of resistor 40 in conjunction with diode 33 causes the variation of the collector and base voltages by operation of resistor 35 to be at different rates so that the operating or centre frequency is not affected. The centre frequency is adjusted by potentiometer 50 which varies the base voltage.
Patent GB-525652-A (GB)
Title: Improvements in or relating to dry contact electric rectifiers
IPC: H01H71/20
Filed: 1939-02-24
Abstract: 525,652. Asymmetrically-conducting resistances ; thermal switches. STANDARD TELPHONES & CABLES, Ltd. Feb. 24, 1939, No. 6214. Convention, date, March 8, 1938. [Class 37] [Also in Group XXXVII] A metal rectifier has a thermal cut-out in thermally-conductive relation with an element so as to break the circuit through the rectifier on overheating. In the example, Fig. 2, the circuit of the rectifier is completed through a spring C held on an insulating block. the free end being retained in the teeth of a wheel W, on a spindle prevented from rotating by alloy M in a fixed cup Z mounted on a rectifier plate P. On overheating, the alloy fuses and the contact C springs clear of the wheel W. On cooling, the spring may be manually reset in the teeth of the wheel. In Fig. 3, a dished bimetallic disc D is mounted on an insulating sleeve H on a spindle between two plates D1, D2 of the rectifier. Normally, the disc makes contact between a metal washer X, on plate D2, and plate D1. On overheating, the disc snaps over to the position shown in dotted lines and breaks the circuit. On cooling, the circuit is remade automatically.