baber/WOPTO huggingface dataset:
Patent GB-239523-A (GB)
Title: Improvement in electric condensers
IPC: H01G4/30
Filed: 1925-09-03
Abstract: 239,523. Dubilier Condenser Co. (1925), Ltd., (Assignees of Horton, C.). Sept. 3, 1924, [Convention date]. Condensers. - Relates to the shape and arrangement of clips for securing the stacks of conducting and insulating sheets of fixed condensers. The condenser shown in Fig. 1 has a stack secured by clips 7, each comprising sections 8, 9 adapted to be secured into a single piece by the passage of a rivet, such as an eyelet 10, passing through the stack and expanded over the sections. Each section comprises an end portion 11 and a part 12 engaging the outer face of a cover 5, the whole forming a U-shaped clip, and each lower section 8 has a connecting lug 13, which, in Fig. 1, is substantially in the plane of the part 12, but in Figs. 3 and 4 is bent as at 14 at right angles thereto and inclined so that the lugs may support a grid leak. In Fig. 6, the lugs 18 are at the centre of the clamp 7, thus making the end portions of the sections 8, 9, respectively wider and narrower. In Fig. 9 the lugs 19, 20 extend from the same side of the condenser and have slots 22 to afford adjustability of connection. In a further form, the part 12 of the clip may be bent so as to prevent air pockets being formed in the condenser. In Fig. 10, two lugs 24, 25 are attached to each section 8 so that simultaneous connection may be made to, for instance, a transformer and a grid leak.
Patent GB-943727-A (GB)
Title: Control panel mounting means
IPC: F21S8/00
Filed: 1962-06-07
Abstract: 943,727. Inductors for switches. SPERRY RAND CORPORATION. June 7, 1962 [July 28, 1961], No. 22082/62. Heading H2B. [Also in Division G5] A mounting for electrical components comprises at least one U-profiled member on which the components are mounted the member having grooves on its inner side into which a cover is slidably mounted, from at least one leg of of this U-profiled member a C - profiled member is formed to provide a mounting for a nomenclature bearing strip. Figs. 1 and 2 show a U - profiled member 100 which may be formed by cutting from an extrusion and the back portion of which may be selectively removed by machining to provide openings into which may be mounted, for example, lamps 102 or microswitches. The front of the member 100 is provided with grooves in which, for example, translucent information bearing panels 108 or push-buttons 110 sepatated by spacers 112 may be mounted. Above and/or below the member 100 may be formed C- profiled members 104, 106 provided with grooves into which nomenclature bearing strips may be inserted, these members may be extruded in one piece with the members 100. In a modification shown in Fig. 3, two U- profiled members 300 are mounted one above the other and the C-profiled members 304 have a recessed well in which small lamps for illuminating the nomenclature strip may inserted. Springs 316 coupled to spacers maintain the switch 306 in the desired posi
Patent GB-859946-A (GB)
Title: Improvements in or relating to containers
IPC: B65D6/00
Filed: 1956-07-17
Abstract: 859,946. Portable containers. MICROCELL Ltd., and GREEN, R. D. July 5, 1957 [July 17, 1956], No. 22125/56. Class 66. A portable container is formed from a plurality of regular-pentagonal units joined together along adjacent egdes so as to form a regular dodecahedron. Each unit consists of a tray 10 with returned flanges 11 inclined at 121 degrees to the plane of the tray. The tray may be flat or slightly domed so that assembled container approximates to a sphere. All the units are identical the uppermost serving as a lid. The units may be made of metal or glassfibre-reinforced plastic material. The flanges have lines of bolt-holes 12 to enable each unit to be secured to its neighbours. One or more of the units may be provided with pipe-connections or view-covers.
Patent GB-186316-A (GB)
IPC: C10K1/12
Filed: 1922-08-14
Abstract: Sulphuretted hydrogen is removed from gases by washing with a nickel salt solution with or without the addition of a salt incapable of precipitating nickel, or of a substance capable of forming a nickel compound soluble in alkaline solutions.  The following substances are mentioned as being suitable:-ammonia, pyridine, salts of organic acids, ammonium chloride ammonium sulphate and sodium chloride.  When the sulphuretted hydrogen has been absorbed, with the formation of a precipitate of nickel sulphide, air is blown in, with the production of free sulphur and of a nickel solution suitable for re-use.  An example describes the use of a solution containing nickel sulphate ammonia, and ammonium sulphate.ALSO:Sulphuretted hydrogen is removed from gases by washing with a nickel salt solution with or without the addition of a salt incapable of precipitating nickel, or of a substance capable of forming a nickel compound soluble in alkaline solutions.  The following substances are mentioned as being suitable: ammonia, pyridine, salts of organic acids, ammonium chloride, ammonium sulphate, and sodium chloride.  When the sulphuretted hydrogen has been absorbed, with the formation of a precipitate of nickel sulphide, air is blown in, with the production of free sulphur and of a nickel solution suitable for re-use.  An example describes the use of a solution containing nickel sulphate, ammonia, and ammonium sulphate.
Patent GB-1466664-A (GB)
Title: Side-stand for motorcycle
IPC: B62H1/02
Filed: 1974-11-15
Abstract: 1466664 Motorcycle side stand HONDA GIKEN KOGYO KK 15 Nov 1974 [16 Nov 1973 2 Aug 1974 (2)] 22154/76 Divided out of 1466606 Heading B7J A pivoted side stand 1 for a motorcycle includes an auxiliary ground engaging member 10 pivotally mounted on the side stand and spring-loaded to extend beyond the foot 1a of the side stand when a motorcycle is moved from a parked to an upright position. As shown in Fig. 1, the auxiliary member comprises a rod having a rubber end-piece, a spring 10b urging the auxiliary member to a position parallel with side stand 1. In a modification, the auxiliary member comprises a rubber block rotatably mounted on a hub 9, Fig. 5, a rubber torsion spring or helical spring urging the auxiliary member to the full line position shown in Fig. 5 with a limit stop 14 on the hub engaging a stop 13 on the side stand.
Patent GB-820018-A (GB)
Title: Circuit arrangement for keeping the black level of a television signal constant, independent of the chosen contrast, in television receivers with the aid of a switching diode
Filed: 1957-07-12
Abstract: 820,018. Television. STANDARD TELEPHONES & CABLES Ltd. July 12, 1957 [July 18,1956], No. 22159/57. Class 40 (3). The black level 2b of a television signal is maintained constant independently of variation of contrast by selecting the D.C. reinserting diode V8 to have a high forward resistance, represented by R8. A germanium diode having a suitable resistance may be employed.
Patent GB-1422847-A (GB)
Title: Treating dyed fibres
IPC: D06P1/92
Filed: 1973-05-09
Abstract: 1422847 Solvent recovery in a dyeing process TEIJIN Ltd 9 May 1973 [9 May 1972 10 May 1972] 22189/73 Heading D1B Fibres which have been dyed using a dye liquor containing a solution or dispersion of a non-ionic dye in a high boiling i.e. boiling at above 180C, water-miscible organic medium or a mixture of it with a low-boiling i.e. boiling at below 130C, medium followed by heating, are treated with a low-boiling organic solvent capable of dissolving the high boiling water-soluble organic medium, the unfixed dye being washed out with the high boiling organic solvent remaining on the fibres, the liquors obtained then being concentrated by evaporation of part or all of the low boiling organic solvent, the high boiling organic medium then being extracted from the concentrate using water. Aqueous solutions of the high-boiling organic medium may be decolourised e.g. with activated charcoal and the water then evaporated off. When all the low-boiling solvent is removed from the waste liquors the dye may be separated by filtration. The low-boiling solvent may be a chlorinated hydrocarbon e.g. chloroform, trichloroethylene, perchloroethylene or 1, 1, 1-trichloroethane, the highboiling water-miscible organic medium being e.g. polyethylene glycol.
Patent GB-614762-A (GB)
Title: Dispersions of polymeric materials
IPC: C08J3/05
Filed: 1946-07-26
Abstract: Dispersions of copolymers of tetrafluoroethylene with ethylene are made by dissolving the copolymer at elevated temperature, e.g. the boiling point, in a liquid which is a nonsolvent below 175 DEG  C. but a solvent above that temperature, cooling the solution to the point of incipient gelation and agitating until precipitation of the copolymer is complete.  Suitable latent solvents are dimethyl glutarate, adipate, azelate and hexahydrophthalate, diethyl and diisobutyl adipates, dibutyl sebacate, isofenchone, acetophenone, benzophenone and isophorone.  Agitation may be carried out by vigorous stirring, shaking or turbulent flow.  The dispersions may be diluted with compatible liquids or concentrated by centrifuging, and may be modified by addition of pigments, plasticizers, waxes, resins and metal powder.  They may be filtered and re-dispersed in nonsolvents, e.g. dimethyl phthalate.  They may be used for coating and impregnating metal, e.g. wire, paper, cloth and glass fabric or for forming films.
Patent GB-717130-A (GB)
Title: Manufacture of hydroxy-ketones of the pregnane series
IPC: C07J5/00
Filed: 1951-09-24
Abstract: The invention comprises D 4-3,20-diketo-17a -hydroxy-21-halogen pregnenes and their preparation wherein a pregnene compound having the grouping = CH-CH2X in the 17-position, X representing a free, esterified or etherified hydroxyl group, is reacted, with exposure to light, with osmium tetroxide and a hydroperoxide or a compound which is capable of providing a hydroperoxide, to produce a 17,20-hydroxyketone.  As hydroperoxides there may be used, hydrogen peroxide and peracids, e.g. performic, peracetic, perpropionic, perbutyric, perbenzoic or monoperphthalic acid.  The reaction may be effected in tertiary carbinols, ethers, lower fatty acid esters and chlorinated hydrocarbons.  As starting materials there may be used D 4,17-3-keto-21-acetoxypregnadiene and other 21 esters, D 4,17-3-keto-21-bromo-pregnadiene, D 4,17 - 3 - keto - 21 - methoxy - prenadiene and other ethers, D 17-3b ,21-diacetoxy-allopregnene and other 3b ,21-diacyloxy compounds or the 3-hydroxy-21-acyloxy compounds, and D 4,17-3-keto-11b -hydroxy-21-acetoxypregnadiene.  For irradiation light sources can be used with or without an ultra-violet constituent, e.g. incandescent lamps, quartz and arc lamps or sunlight.
Patent GB-1326348-A (GB)
Title: Feed-forward amplifiers
IPC: H03F1/32
Filed: 1971-04-19
Abstract: 1326348 Amplifiers WESTERN ELECTRIC CO Inc 19 April 1971 [27 Feb 1970] 22346/71 Heading H3W The invention relates to a feed-forward amplifier comprising first and second parallel wave paths 10, 11, Fig. 1, respectively, the first 10 including in cascade a main signal amplifier 12 and a first time delay network 13, while the second wavepath includes, in cascade a second time delay network 14 and an error amplifier 15. Means are provided, i.e. directional coupler 16, for dividing an input signal into two components and for coupling a different one of the components to the input end of each of the wavepaths 10, 11. Means are also provided, i.e. directional coupler 18, for coupling a portion of the output from the main amplifier 12 to the input of the error amplifier 15. Finally an error injection network comprising a directional coupler 17 is provided to combine the signals in the two wavepaths 10, 11 in time and phase at a predetermined level of output signal near to or at the maximum signal level to minimize error components in the amplifier output signal. In a known amplifier of the feed-forward type, the outputs 1<SP>1</SP> ...8<SP>1</SP>, in the vector diagram of Fig. 5B, from the main amplifier deviate increasingly in amplitude and also in phase from the corresponding outputs 1 ... 8 of a perfect amplifier, the error amplifier providing corresponding correcting signals, e.g. α<SP>1</SP>, α<SP>11</SP>, α<SP>111</SP>. According to the present invention, a constant phase error is allowed, the error amplifier providing the correcting signals #<SP>1</SP>, #<SP>11</SP>, #<SP>111</SP> shown in the vector diagram of Fig. 7. The Specification gives a mathematical exposition for the design of a suitable directional coupler 17.
Patent GB-807941-A (GB)
Title: Improvements in aerials
Inventor: MORGAN JOHN TREVOR
IPC: H01Q9/08
Filed: 1956-07-19
Abstract: 807,941. Aerials. BELLING & LEE Ltd. July 12, 1957 [July 19, 1956], No. 22352/56. Drawings to Specification. Class 40 (7). A collapsible aerial for use at Band I or III frequencies comprises a folded dipole supported on a cross arm such that the median plane through the limbs of the dipole is parallel to a plane through the cross arm longitudinal axis and such that the dipole can be rotated from a position in which its limbs are at a right angle to the cross arm to a position in which they are parallel to the cross arm. Director and reflector elements can be added, these also being so mounted that they may fold against the cross arm. Dimensions of a 3-element Band III array are given and compared to the dimensions for a conventional 3-element Band III array.
Patent GB-479531-A (GB)
Title: Improvements in or relating to collapsible trestles
IPC: E01F13/02
Filed: 1936-08-14
Abstract: 479,531. Collapsable trestles. CLERK & SON, Ltd., D., and CLERK, D. E. Aug 14, 1936, No. 22483. [Class 52 (v)] In collapsable trestles of the type described in Specification 171,300, [Class 52 (v)], comprising an upright 10 having pivoted to its lower end three or more foot members 11, 12 connected by stays 15 with a slide 18 movable along the upright, the stays are joggled or offset at 22 to clear the pivot pins 19, connecting the foot members to -the upright. A stop 30 limits the upward movement of the slide at the position in which the feet are horizontal. The pivot pins are bushed by steel ferrules retained by end washers, and strengthening plates 23 are welded to the members at the pivotal connections. Each foot member has a hole 24 by which it may be spiked to the ground. The crutch 26 comprises a cranked steel plate fixed to one flange of the upright and arranged to rest on the top of the other flange. The top may be modified to take a lamp.
Patent GB-388314-A (GB)
Title: Improvements in blanks for cardboard boxes
IPC: B65D5/42
Filed: 1932-08-11
Abstract: 388,314. Blanks for producing boxes. FUXERNA AKTIEBOLAG, Vanersborg, Sweden. Aug. 11, 1932, No. 22524. Convention date, Aug. 27, 1931. [Class 18.] A blank for cardboard boxes is provided with clips arranged so that their free ends before folding terminate within or a trifle beyond the edge of the blank, and on that side of the blank against which an adjacent flap or side is to be clipped. The clip 7 may be located wholly on one side of the blank, Fig. 4, or may be secured on one side and pass through a slot 8, Fig. 3, so that its free end is located on the other side. To facilitate manipulation of the clips, notches 12, 16 may be provided in the edge of the blank. The clips may engage notches 10 or slots 9 in the adjacent flap or side.
Patent GB-496901-A (GB)
Title: Improvements in flotation of culm
IPC: B03D1/02
Filed: 1937-08-17
Abstract: Fine refuse coal, e.g. anthracite slush culm, is cleaned by classifying it into two or more size ranges and subjecting each size range separately to a froth flotation process, using a smaller amount of collector with the finer ranges than with the coarser ranges.  The flotation of the coarser coal may be effected without or with only a small amount of frother, the preferred frother being the mixture of alcohols and hydrocarbons described in Specification 446,418.  The collector is preferably a hydrocarbon, e.g. kerosene, and sodium silicate may be added. Slimes, e.g. of minus 100 mesh, may be removed before flotation by any known means, alkali metal silicate being preferably added to the pulp to facilitate the desliming.
Patent GB-395341-A (GB)
Title: Method of producing hollow bodies closed on all sides or on five sides by means of extrusion presses
IPC: B28B3/26
Filed: 1933-01-04
Abstract: 395,341. Extruding hollow bricks &c. SUPTHUT, H., (trading as SCHULKE, W.), 4, Viktoriastrasse, Liegnitz, and THOMAS, P., 50, Leinestrasse, Neuk÷lln, Berlin, both in Germany. Jan. 4, 1932, No. 226. Convention date, Nov. 10, 1931. Addition to 380,591. [Class 87 (ii).] The apparatus described in the parent Specification is modified by the use of means for effecting a more definite supply of the material for forming the connecting walls between adjacent blocks. Fig. 1 shows a hollow perforated core 2 which can be pushed out of the sheath 1 by the rod 4 into a position in which it forms hollow blocks 18 and at the same time becomes filled with clay through the perforations 7. On retracting the core, the stripper 9 retains the internal clay to form the dividing wall of the blocks. An adjusting stripping-ring 10 cleans the exterior of the core as it passes into the sheath. In a modification the stripper 9 is replaced by an intermittentlyrotated worm which feeds a separate supply of material forward to form the dividing wall when the core is retracted. Fig. 4 shows a further modification in which the worm 17 acts as the core and is rotated when in the retracted position to extract material from the main body and force it axially in the centre of the moving stream.
Patent GB-211174-A (GB)
Title: A process for the utilisation of seaweed
IPC: C08B37/12
Filed: 1922-08-19
Abstract: Fresh seaweed is ground wholly or in part to a degree of colloidal fineness and mixed with a small proportion of a water-soluble alkaline material or with the oxide, hydroxide, or carbonate of an alkaline-earth or heavy metal.  This addition may take place before, during, or after the grinding.  The pulp produced may be used directly as an agglutinant.  The seaweed may be subjected to a preliminary pressing to remove entrained seawater, and may be boiled before grinding to remove soluble salts.  At any stage in the production of the pulp a small amount of preservative may be added. Specification 56/79, [Class 70, India-rubber &c.], is referred to.
Patent GB-531868-A (GB)
Title: Improvements in and relating to luminairs
IPC: F21V5/00
Filed: 1939-08-04
Abstract: 531,868. Prismatic plates for lamps. HOLOPHANE, Ltd. (Rolph, T. W.). Aug. 4, 1939, No. 22681. [Class 75 (ii)] A prismatic plate 20 which transmits divergent light from a light source 21- at reduced angles of divergence has one or more integral light-modifying louvres 22 ... 27 on its light-emergent side to screen the prismatic area of the plate beyond a given angle from the beam axis. These louvres reduce glare due to stray light. The louvres may have enamelled or etched surfaces 33, horizontal prisms 35 which refract or reflect light upwardly, vertical totallyreflecting prisms 37, or vertical diffusing flutes 39. The louvres may be annular, for use with a point source, or straight, for use with a long light source. Two groups of straight louvres may cross at right-angles to one another. A curved plate with louvres on its convex surface may have them protected by a second plate, which is flat. In Fig. 13 a central zone 67 is surrounded by a flared refracting, part 68, a clear zone 70, and a reflecting part 71. Specification 112,738, [Class 75 (ii)], is referred to.
Patent GB-614801-A (GB)
Title: Improvements in fishing floats
IPC: A01K93/00
Filed: 1946-07-31
Abstract: 614,801. Fishing. GRIZAUD, J. M. July 31, 1946. No. 22755. Convention date, Jan. 17, 1939. [Class 48] A line float comprises a hollow container of transparent material provided with an opening e and a stopper c allowing the introduction of liquid b. The float may be constructed by joining two flanged portions a. The ring f formed by the flanges is pierced to provide means for attachment to the line and tackle.
Patent GB-260080-A (GB)
Title: Process for the manufacture of a powder for moulding into articles
IPC: C08L61/10
Filed: 1925-09-11
Abstract: 260,080. Boorne, W. H. Sept. 11, 1925. Fibrous plastic compositions. - A powder for moulding by pressure and heat into electric insulating and other articles is made by grinding a cellulose material such as wood, straw &c. (24 parts) washing out soluble salts, adding a colouring matter (1¢ parts), and adding this to a mixture composed of carbolic acid (28 parts), calcium carbonate (12 parts) a metallic silicate, such as that of calcium, aluminium, or magnesium (¢ part), finely ground resin such as kauri gum, esparto resin, or colophony (8 parts), and a reacting agent such as formaldehyde or furfurol (27 parts), heated together at about 90‹ C. or higher until it can be drawn into threads. The mixed mass is agitated and heated up to boiling point for about five hours until the wood &c. has absorbed the binder, and a powder or lump which can easily be reduced to powder, is formed.
Patent GB-1284738-A (GB)
Title: Metal-air cells
Inventor: WILSON HENRY GEORGE EVANS
IPC: H01M12/06
Filed: 1969-05-05
Abstract: 1284738 Metal-air cells SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 27 April 1970 [5 May 1969] 22805/69 Addition to 1140635 Heading H1B An electric cell comprises an electrolyte 2, at least one metal or metal alloy electrode 3 and an air electrode 4, comprising a porous non- conductive support sheet 5 on which is superimposed a conductive layer 6 carrying a catalyst layer 7, the catalyst layer being in contact with the electrolyte. The electrolyte may be a solution of an alkali metal halide, but preferably not sodium chloride. The metal or alloy electrode may be of Mg or Mg alloy. The porous non- conductive layer may be of polythene, P.V.C. or P.T.F.E. or a less hydrophobic material treated with a hydrophobic agent. Two such layers may be separated by a P.V.C. spacer 8. A nickel mesh 9 may be stuck over the catalyst layer by a conductive adhesive comprising a mixture of epoxy-resin and silvered glass beads. Fig. 2 (not shown) illustrates a battery of such cells.
Patent GB-684747-A (GB)
Title: A one way brake for the rollers of slide feed mechanisms
Inventor: KOCH FREDERICK
IPC: F16D41/066
Filed: 1951-10-01
Abstract: 684,747. One-way brakes. ASSOCIATED PATENTEES, Inc. Oct. 1, 1951, No. 22848/51. Class 103 (i). In a one-way brake for the rollers of a slide feed mechanism for metal stock, of the type using rollers 17 adapted to wedge between the inclined surfaces 23 and a cylindrical surface 16 is characterized in that the springs 18 for thrusting the rollers 17 in the locking direction are strengthened against breakage on repeated loading, by the provision of shoulders 22 on the cam 14 which limit the collapsing movement of the springs to the clearance 24.
Patent GB-985819-A (GB)
Title: Improvements in and relating to lighting fittings
Inventor: PFEFFER KARL-AUGUST
IPC: F21V7/04
Filed: 1961-06-26
Abstract: 985,819. Electric lighting fittings. LICENTIA PATENT-VERWALTUNGS G.m.b.H. June 26, 1961, No. 23055/61. Heading F4R. A lighting fitting, especially for street lighting, suitable for homogeneously illuminating an area with light of a desired colour content comprises a central tubular light source means of selected colour content, outer tubular light source means of a further selected colour content disposed in spaced parallel relationship with and on opposite sides of the central source, the sources illuminating the arc both directly and indirectly by way of reflectors extending along opposite sides of the fitting to receive light emitted laterally to the general direction of direct illumination and effective to reflect light from the central and outer source means in such a ratio as to produce uniform illumination of the area by light of desired colour content. The lantern 1 contains two lamps 2, 3 of the same colour, e.g. fluorescent lamps, on opposite sides of a third lamp 4, e.g. a sodium vapour lamp. Mirrors 5a, 6a are arranged outside the outer lamps to reflect the light only from the lamps 2, 3 and mirrors 5b, 6b to reflect light from the lamps 2, 4 and 3, 4 respectively. The lantern is closed by a transparent cover 7.