baber/WOPTO huggingface dataset:
Patent GB-1132936-A (GB)
Title: Improvements in or relating to means for illuminating the road ahead of vehicles
IPC: B60Q1/14
Filed: 1967-07-14
Abstract: 1132936 Vehicle headlamp systems SOC ANON ANDRE CITROEN 14 July 1967 [28 July 1966] 32565/67 Index C3R 32 L4H C8P C6X L6G C33X C6A1 C4 C13P C13M C12 C9B C25 L2X L5X A vehicle is fitted with a plurality of headlamps, preferably arranged in pairs symmetrically of the longitudinal axis of the vehicle, the pair 1 giving a short range broad beam A when dipped and a slightly longer range broad beam A + B when raised, the pair 3 giving a narrow long-range beam D and the intermediate pair of pairs 2 giving beams of intermediate width and throw, and a switch having at least as many positions as there are pairs of lamps.
Patent GB-1096828-A (GB)
Title: Improvements relating to column hoisting apparatus
IPC: E02B17/08
Filed: 1965-07-23
Abstract: 1,096,828. Hydraulic jacks. FELIX MAX ADLER. July 23, 1965, No. 32623/67. Divided out of 1,096,827. Heading B8J. A jack for lifting columns in erecting buildings comprises hydraulically operated wedges 120 inside blocks 123, the whole enclosed in rectangles of intercalated plates 124, 125. The wedges 120 are applied, to the column 110 by hydraulic rams 133 and levers 132 and released by .hydraulic rams at the narrow end of the wedges. Pistons 54A effect alternate upward movements of the two sets 121, 122 of wedges, blocks and plates. The jack is dismantled by removing bolts 126 connecting the plates 124.
Patent GB-505919-A (GB)
Title: Improvements in x-ray diaphragms for intercepting secondary radiation and method of making same
IPC: G21K1/02
Filed: 1937-11-26
Abstract: 505,919. R÷ntgen - ray diaphragms. SCHONANDER, N. G., and LEDIN, S. V. Nov. 26, 1937, No. 32698. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 30, 1938.] Drawings to Specification. [Class 98 (i)] [Also in Group XXII] A Bucky diaphragm for intercepting secondary radiation consists of heavy metal strips alternating with light metal strips, the light metal strips being coated on both sides ' before assembly with an auxiliary layer or layers of a metal which is more easily solderable than the light metal and has a higher melting-point than a layer of soldering metal or alloy subsequently applied to the auxiliary layer or layers. The ray-permeable light metal strips may be of aluminium or magnesium or alloy thereof; the auxiliary layers of copper, zinc, cadmium, iron, silver or nickel; and the ray-impermeable heavy metal layers of lead, bismuth, gold, tungsten, tantalum, antimony, tin, or silver. A block may first be formed by assembling and uniting plates, and be subsequently divided into several diaphragms as by sawing. Alternatively, a compound ribbon of the metals may be wound into a spiral to form a circular diaphragm. The auxiliary metal layers may be applied to the light metal strips as by rolling, aquirting or electroplating, and the soldering metal layers by dipping, electroplating, pasting, &c. Heavy metal layers may be formed on the coated light metal strips electrolytically or by squirting, or by attaching heavy metal foils as by resin or stearin, and rolling ; and the plates are assembled alternately with coated light metal plates, and united by heat and pressure. A screen is described having light metal layers À2 -À4 mm. thick ; auxiliary metal and soldering metal layers each À01-À02 mm. thick; and heavy metal layers À04 -À06 mm. thick. The Specification as open to inspection under Sect. 91 states that the soldering layer is optional and may, be applied at the edges only ; and refers alternatively to welding of the layers. This subject-matter does not appear in the Specification as accepted.
Patent GB-778239-A (GB)
Title: Trihydroxy polyoxyalkylene ethers of glycerol
IPC: C08G65/28
Filed: 1954-11-11
Abstract: Glycerol ethers contain three polyoxy-1,2-propylene chains attached to each glycerine molecule and three hydroxypolyoxyethylene chains attached to the polyoxypropylene ones.  The average number of oxyalkylene groups per mol. of glycerol is at least 54 and the oxy-1,2-propylene radicals constitute 66-89 mol. per cent of the total oxyalkylene groups. Preparations is carried out in two steps, batchwise or continuously, under substantially moisture-free conditions, with an alkali metal hydroxide or alcoholate as catalyst and preferably in an inert atmosphere, e.g. of nitrogen.  Heat may be removed to maintain a temperature of 120-140 DEG  C.  Alkali in the products may be neutralized, e.g. with acetic acid and the products washed with water and, if desired, freed from volatile products by fractional distillation.  The products are non-ionic surface-active agents particularly useful for suppressing and dispersing foam. Examples describe detailed preparations, compare the physical properties of products according to the invention and illustrate the foam-suppressing properties of the products.  Reference has been directed by the Comptroller to Specification 731,603.ALSO:Ethers containing an oxy - 1.2 - propylene chain attached to each OH group of glycerol and three hydroxy - polyoxyethylene chains attached to the polyoxypropylene ones, the oxypropylene groups constituting 66-89 mol. per cent of the total oxyalkylene groups (see Group IV(a)) are good anti-foaming agents useful in both aqueous and non-aqueous systems.  Example 3 illustrates the anti-foaming properties of the products in aqueous anti-freeze soltions of ethylene glycol and Example 4 compares their anti-foaming properties with those of known anti-foaming agents.  Reference has been directed by the Comptroller to Specification 731,603, [Group IV(a)]
Patent GB-329721-A (GB)
Abstract: 329,721. Ellis, G. B., (Soc. des Usines Chimiques Rh¶ne-Poulenc). March 1, 1929. Acyl and halogen-acyl halides; acetaldehyde; halogen-acetaldehyde; halogen-ethyl esters and halogen -esters.-Acyl halides are made by dissociating a-halogen or a-#-dihalogen-ethyl esters in the liquid phase by heating with acid catalysts such as inorganic acids, organic acids containing inorganic radical such as aliphatic and aromatic sulphonic acids, acid salts such as bisulphates, and acid-reacting salts such as zinc and cadmium halides. The aldehyde or halogen-aldehyde produced as a second product is collected in free or polymerized form. Increased or diminished pressure may be employed. The a-halogen-ethyl 1 esters and the a-#-dihalogen-ethyl esters may be produced by the action of halogen acid or halogen respectively on the corresponding organic vinyl esters. In examples : (1) a-monochlorethyl acetate is heated with zinc chloride or bromide, or sulphuric or phosphoric acid, acetaldehyde, acetyl chloride and paraldehyde being successively distilled off; (2) a-chlorethylchloracetate is heated with zinc chloride or sulphuric or phosphoric acid yielding acetaldehyde, chloracetyl chloride, and paraldehyde; (3) a-chlorethyl-butyrate, prepared by passing hydrochloric acid through vinyl butyrate, is heated with zinc chloride, yielding analogous products; (4) a-#- dichlorethyl acetate prepared as described in Specification 325,115 is heated with zinc chloride or bromide or sulphuric or phosphoric acid, yielding acefyl chloride and chloracetaldehyde, which partly polymerizes in the reaction vessel; (5) a-.#-dibromethyl acetate or butyrate is treated as in the preceding example; (6) a-#-dichlorethylchloracetate is treated as in example (4).
Patent GB-604255-A (GB)
Title: Improvements in radio receiving installations
IPC: H04B7/08
Filed: 1945-12-06
Abstract: 604,255. Wireless receiving systems. PHILIPS LAMPS, Ltd. Dec. 6, 1945, No. 33013. Convention date, July 31, 1940. [Classes 40 (v) and 40 (vi)] In a diversity reception system, selection of the channel carrying the strongest signal is effected by obtaining from each receiver a direct voltage dependent on the carrier strength and feeding the direct voltages to the anodes and cathodes of a corresponding number of diodes having the cathodes connected to earth through a common resistance, the voltage differences then appearing between the respective anodes and being used to effect the selection of the desired channel. The apparatus at the central station for selecting the strongest signal from three separated receivers is shown in Fig. 2. Direct voltages derived from the A.V.C. circuits and dependent on the carrier strengths of the signals at the respective receivers are fed to terminals 11, 12, 13 and the corresponding audio-frequency signals are fed to terminals 11<1>, 12<1>, 13<1>, the arrangement being such that the largest direct voltage operates the corresponding relay 32, 33 or 34 to pass the strongest of the three signals to the output circuit 35. The direct voltages are fed to the anodes 14, 15, 16 of a tripole diode, the common cathode 17 of which is connected by a large resistance 18 to earth. Only the anode having the largest voltage will be operative and the cathode will assume the voltage of this anode. Thus, the anodes will assume the same relative potentials as the lines 11, 12 and 13 and these potentials are transferred through resistances 29 ... 31 to the grids of three valves 22 ... 24, the cathodes of which are connected to earth through resistance 25 and in whose anode circuits are the relays 32 ... 34. The valves 22 ... 24 are arranged so that the grid of each valve is connected to the anodes of the other two by a resistance R and thus only the valve with the highest grid potential conducts to operate the corresponding relay 32 ... 34 and so connect the strongest signal from lines 11<1>, 12<1>, 13<1> to output terminals 35. Neon tubes 36 ... 38 indicate which relay is energized at a given time.
Patent GB-1112336-A (GB)
Title: Cryogenic refrigeration system
IPC: F17C3/08
Filed: 1965-08-03
Abstract: 1,112,336. Refrigerating. HUGHES AIRCRAFT CO. 3 Aug., 1965 [3 Aug., 1964], No. 33181/65. Heading F4H. Cyclic variations in the temperature of the cold end of a refrigerating machine, e.g. one operating according to the Stirling cycle principle, are attenuated by means interposed between the machine and a heat load which is required to be maintained at substantially constant temperature. As shown, the cold end 32 of a refrigerating machine is located in a bore 33 of a block 17 of good heat conducting material, the block having a further bore 34 in which is located a cylinder 18 having a thermal capacity greater than that of block 17. Cylinder 18 thus acts as a heat reservoir which alternately accepts and rejects heat from block 17 to dampen thermal oscillations in the latter. Further damping is provided by a member 21 which is in thermal contact with block 17 and has a higher thermal capacity and a longer thermal time constant than block 17. The heat load 13, which comprises an infra-red detector, is mounted on member 21 via plates 36, 37. Block 17 may be made of copper and cylinder 18 of lead, or both may be made of brass in which case the cylinder is of greater mass than the block to provide the higher thermal capacity or the cylinder and block are combined to form a unitary mass. Member 21 is made of 50% lead and 50% indium, or of tetrafluoroethylene and plates 36, 37 of copper. Preferred dimensions are given.
Patent GB-1029952-A (GB)
Title: The production of polymer solutions
Inventor: RICHARDSON NIEL MAYOH
IPC: C08F214/08
Filed: 1961-09-18
Abstract: In an improvement in the process of the parent Specification, solutions of copolymers of acrylonitrile and vinylidene chloride are produced by dissolving in dimethylsulphoxide, acrylonitrile, vinylidene chloride and, if desired, one or more other copolymerizable monomers, in such quantities that the resulting copolymer contains 40 to 60% of acrylonitrile units by weight, the balance being largely vinylidene chloride, and polymerizing the monomer mixture obtained in the presence of a small quantity of ethylene diamine tetra-acetic acid and an initiator, e.g. an axo-catalyst, under conditions of temperature and time such that the copolymer produced has an inherent viscosity, measured in a solution of 0.5% concentration by weight, of at least 1.0.  The examples illustrate the copolymerization of acrylonitrile and vinylidene chloride in dimethylsulphoxide and dimethylsulphoxide plus water, the amount of ethylene diamine tetra-acetic acid generally being from 0.01 to 0.14% of the total weight of the monomer solution (including added water when present).  Shaped articles such as fibres and films may be produced from the copolymer solutions.
Patent GB-1216948-A (GB)
Title: Improvements in or relating to dampening systems for offset lithographic printing machines
Inventor: REINARTZ ROBERT
IPC: B41F7/32
Filed: 1969-07-02
Abstract: 1,216,948. Dampening apparatus. MASCHINENFABRIK AUGSBURG - NURNBERG A.G. 2 July, 1969 [26 July, 1968], No. 33399/69. Heading B6C. A dampening apparatus for an offset lithographic printing machine comprises a pivotallymounted fountain and fountain roller, movable about a vertical axis, and a roller vertically above the fountain roller. The fountain is preferably mounted on a plate which is pivoted about a vertical pin by rotation of an eccentric. One or more wiping rollers may act on the fountain roller, and may be longitudinally displaceable and adjustable to, and withdrawable from, the fountain roller. The fountain roller may be driven by way of a universal-joint shaft from a motor and reduction gear.
Patent GB-202900-A (GB)
Title: Sieves with removable bottoms
IPC: A47J43/22
Filed: 1922-12-07
Abstract: 202,900. Ward. F. Dec. 7, 1922. Hand sieves.-A frame for detachably holding interchangeable sieves E, of different mesh, consists of two conical or stepped rings A, C which are secured together to clamp the sieve between them by eye-bolts G engaging studs H on one ring and passing through brackets P hooked on the other. The rings and sieves may have indicating marks so as to facilitate their assembly in the correct order for the particular sieve in use. A support for the sieves comprising cross-bars K mounted on a ring L, may be provided and is clamped in position with the sieve. The edges of the sieves are turned up and secured to rings F.
Patent GB-1397417-A (GB)
Title: Process for the production of fibre preforms
IPC: D04H1/00
Filed: 1972-07-18
Abstract: 1397417 Fibre preforms BAYER AG 18 July 1972 [20 July 1971] 33465/72 Heading B5A Seamless closed hollow fibre preforms and bodies, e.g. bottle, frustum, cylinder, tank are formed by rotating fibres and a thermoplastic adhesive in a mould which is rotated about one or two axes at an angular velocity such that the resulting centrifugal forces are below the force of gravity, e.g. 1-30 r.p.m. and which is heated to the melting or softening point i.e. 70-220‹ C. of the adhesive. The fibres have a length 30Á- 10 cms. and may comprise asbestos, carbon, steel, polyamide, polyester, polyacrylonitrile, cellulose, or glass having adhesion promoting layers. The adhesive may comprise polymers such as M.D. or L.D. polythene, a co-polymer thereof with isobutylene, vinyl acetate or partly saponified vinyl acetate, polypropylene, polyvinyl acetate, polyamide, homo or co-polymers of styrene, acrylonitrile and butadiene, plasticized P.V.C., polymethacrylic acid ester or polycarbonate. The adhesive may also comprise a monomer having a melt viscosity of at least 10,000 cp, e.g. lactams having at least seven ring members such as caprolactam, lauric lactam and oenanthic lactam. The rotational moulding may take place under an inert gas. The adhesive may be in the form of a powder having a particle size of 30-1000 Á and may be used in concentrations of from 1-50% as based on the fibre content. The adhesive and fibre may be introduced into the mould as a ready mixture, separately in batches, continuously through a rotating stuffing box or by trickling from an unheated supply container attached to the mould. The wall of the preform may be consolidated by simultaneously or subsequently charging the mould with spherical or cylindrical porcelain, clay, glass or metal beads. The preform may be impregnated with or permeated by monomer or polymer resin, e.g. 6-polyamide either immediately following the casting of the adhesive and fibres or in a separate operation upon the preform. The resin may be applied in vacuo or under pressure. The mould may be single or double-walled, heated using oil, have a p.t.f.e. or silicone mould release layer and comprise heat-insulated areas to prevent fibre adherence thereat.
Patent GB-899448-A (GB)
Title: A ventilating device
IPC: E04B1/70
Filed: 1960-10-01
Abstract: 899,448. Ventilating. AUSTERMAN, H. Oct. 1, 1960, No. 33773/60. Class 137 A device for fitting into a cavity 8 in a well 7 to enable air to circulate within the cavity to dry out the wall comprises a tubular member 2 having an end plate 1 with transverse apertures 3, 3a and 3h and ribs 5 extending from the end plate and adapted to guide air pasisng through the cavity. Tubes having apertures in their walls may be fitted to the member 2 and all the parts of the device may be made from a synthetic resin plastics material.
Patent GB-457628-A (GB)
Title: Improvements in packing rings for pistons
IPC: F16J9/06
Filed: 1935-12-05
Abstract: 457,628. Piston - rings. PERFECT CIRCLE CO., Hagerstown, Indiana, U.S.A. Dec. 5, 1935, No. 33779. Convention date, July 25. [Class 122 (i)] A piston-ring 14 expanded by leaf springs 25 carried by a band 20, is provided with two or more notches 30 into which the springs project to prevent relative rotation of the ring and spring band. The leaf springs may be integral with the band or secured thereto by central clips 24 seated in recesses in the band. When used with an oil scraper ring, the spring band may be perforated for the passage of lubricant.
Patent GB-622137-A (GB)
Title: Improvements in or relating to vulcanizing method and apparatus
IPC: B29C35/02
Filed: 1946-11-14
Abstract: 622,137. Vulcanizing long lengths. STEVENS, A. H. (Boston Woven Hose & Rubber Co.). Nov. 14, 1946, No. 33808. [Class 70] A method of feeding belting or the like into a trough-like channel formed in a rotating vulcanizing drum comprises passing the belting along a substantially straight path tangential to the channel, progressively bending the marginal portions of the belting to curve it transversely while moving the belting in said straight path and as it is being fed into the channel, and thereafter crowding the intermediate portion of the belting into the channel and its edge portions outwardly into contact with the side walls as the belting is fed into the channel. In a preferred apparatus for carrying out the invention the uncured belting 70 is passed in taut condition over roll 62 and then in a substantially straight path to the bite between the moulding channel in the drum 12 and the tension band 11, as it leaves the lower roll 15. At an intermediate point the belting is engaged by the roll 52 which bends the marginal portions inwardly towards; and feeds them into the moulding channel. Specification 500,925 is referred to.
Patent GB-763420-A (GB)
Title: Improvements in pallets more particularly for use with fork-lift trucks
Inventor: SANDFORD EDWARD JAMES
IPC: B65D19/00
Filed: 1954-11-23
Abstract: 763,420. Pallets for handling loads. METAL AGENCIES CO., Ltd. Nov. 21, 1955 [Nov. 23, 1954], No. 33931/54. Class 78 (4). The platform of a pallet is formed with one or more recesses 21, 22 so that the tines of a fork truck may be inserted between the pallet and its load when the load is to be transferred between the pallet and, for example, dunnage on a vehicle. The timber pallet illustrated is adapted to be engaged by inserting the tines of a fork truck in recesses 8, 9 provided between a lower deck 11 and an intermediate deck 10 while the interrupted upper deck 18, 20, 19 is supported on battens 12 ... 17. The upper deck may be formed with a single recess instead of the two shown and the pallet may be constructed of metal.
Patent GB-298810-A (GB)
Title: Improvements in or relating to presses for racquets
IPC: A63B60/44
Filed: 1927-12-15
Abstract: 298,810. Flower, S. Dec. 15, 1927. Racket presses.-In a racket press of the kind in which pressure is exerted upon the ratchet by the manipulation of a single member, the member comprises a lever mounted upon one frame of the press and adapted to co-operate either directly or through resilient means with the other member to press the two frames together against the action of separating means. The press comprises two frames a, b that are connected by pins c and normally held apart by springs c'. A lever j<1> pivoted to lugs g upstanding from the frame b is provided adjacent its ends with cranks j<2>, that engage spring plates f secured to the frame a and when the lever is rotated, force the frames together. In a modification, two closed frames are connected by pins that are secured to one frame, but instead of passing through apertures in the other frame, as shown in Fig. 3, slide in sockets attached thereto. The lever j<1> is replaced by a cranked shaft operated by handles attached to its ends.
Patent GB-1193034-A (GB)
Title: Static Converter
Inventor: KROGER ALFON FEDOROVICH
IPC: H02M3/24
Filed: 1968-07-17
Abstract: 1,193,034. Single phase to polyphase converters. FIZIKO-ENERGETICHESKY INSTITUT AN LATVIISKOI SSR. 17 July, 1968 [17 July, 1967], No. 34002/68. Heading H2F. [Also in Division H1] Three-phase A.C. is derived from a single phase A.C. or a D.C. source by a converter as shown, Fig. 1, the output voltage of which is also regulated. D.C. or A.C. is applied to a diode bridge rectifier 1 the output from which is smoothed by a filter transformer 4 having a 1 : 1 ratio, ripple components in primary 3 and secondary 5 being in anti-phase, cancel out. The secondary 5 also acts as a series inductance between the rectifier output and an inverter 6 and improves the commutation thereof. Transformer 4 also protects against input voltage surges. The three-phase output of the inverter is applied to a regulating transformer 7 having a control winding 12 (Fig. 2) the current through which is made to change (by an arrangement not described) to maintain a desired output voltage from the transformer 7, which output is also the converter output. The regulating transformer comprises a main core 8 (Fig. 2) and a magnetic circuit 9, on both of which the primary winding 10 is wound to establish flux therein. The secondary 11 is wound on core 8 only and the control winding 12 on the magnetic circuit 9. The distribution of flux between 8 and 9 is varied by adjusting the control winding current and consequently the output voltage of the transformer is varied.
Patent GB-1314889-A (GB)
Title: Process for manufacturing high-grade steel
IPC: C21C7/06
Filed: 1970-07-14
Abstract: 1314889 Desulphurizing steel ALLM€NNA SVENGKA ELEKTRISKA A B 14 July 1970 [15 July 1969] 34052/07 Heading C7D A deoxidized steel melt weighing more than 1 ton is desulphurized in a vessel having a lining which prevents oxygen from leaking into the melt and which is basic at least at the slag line. At least one basic slag forming agent is added to form a desulphurizing slag and the melt is kept deonidized throughout the desulphurizing process by vacuum degassing and/or by adddition of a deonidizing agent and is subjected to vigourous heating and stirring. A desulphurizing agent such as misch metal, calcium, silicon-calcium or aluminium-calcium may be added to the melt. Lime may be added in amount 0À2-2À0% by weight of the total charge, misch metal up to 1À0%, calcium or an alloy thereof to add up to 0À5% of calcium or magnesium or an alloy thereof to add up to 0À5% of magnesium may be used. Aluminium with or without a fluxing agent such as fluorspar may be added to the slag.