baber/WOPTO huggingface dataset:
Patent GB-1503165-A (GB)
Title: Explosive charge magazine
IPC: F42B39/08
Filed: 1975-09-09
Abstract: 1503165 Charge magazine strip HILTI AG 9 Sept 1975 [30 Sept 1974] 36936/75 Addition to 1447188 Heading B4C [Also in Division F3] A disposable explosive charge magazine has a magazine body 1, Fig. 1, one or more cartridge cells 2, each being surrounded by an annular rim 3 and each containing propellant 4, and one or more recesses 5 each having a primer 6 therein. Each respective cell 2 and each respective recess 5 may be connected by a respective ignition channel 7 or each respective cell 2, Fig. 3, is connected to the respective recess 11. The primer may be a percussion cap 6, Fig. 1, a percussion cap 8, Fig. 2, with an anvil 10 a closed cap 12 Fig. 3, which is located in a blind bore 11 of the body 1 and is suitable for explosive-powered fastener-driving tools, an electrically or electronically ignitable primer 16, Fig. 4, in a recess 15 and provided with contact points 17a, 17b, and a heat-ignitable primer 19, Fig. 5, which is positioned in a passage 18 of the body 1 and comprises an ignition composition 19a, which is impacted against the propellant 4 by an ignition pin (not shown), and a friction surface 19b, which causes heat when rubbed by the composition 19a.
Patent GB-975350-A (GB)
Title: Batch heating furnace
Inventor: SUYDAM WALTER
IPC: C21D9/00
Filed: 1963-09-20
Abstract: 975,350. Heat treatment furnaces; hearths, charging and discharging. BIRWELCO Ltd. Sept. 20, 1963, No. 36997/63. Heading F4B. A reheating furnace for plates 3 being processed in a rolling mill comprises a hearth 32 mounted on a motorized car 31, a vertically movable and integral unit comprising side walls 9 and end walls 10, and a fixed roof 22 surrounded by a support framework including buckstays 5 connected by pairs of girders 6, 6<SP>1</SP> interconnected by transverse girders 7 carrying further girders 8 from which the roof is suspended by hanger channels 23 and refractory hanger members 24. The furnace is disposed above the mill run-out table 2 on to which the plate 3 may be lowered as indicated below when the hearth 32 is removed. The integral wall unit may be moved vertically by piston rods 20 in hydraulic cylinders 19 mounted on the girders 6, 6<SP>1</SP>. The movement is between limit switches 43, 44 incorporated in an hydraulic control system, Fig. 4 (not shown), the unit being guided by rollers 14 and 17 engaging an outer flange of the buckstays 5. The wall unit also includes flues 28 and the roof has burner ports 27. The hearth is driven by a motor 31a on rails 30 and has transverse supports 32b on which the plate 3 rests. The plate handling apparatus at the side of the furnace comprises a frame 65 movable vertically between uprights 61, 62 engaged by pulleys 66, Fig. 6, by a chain and pulley system 86, 87 actuated by a rod 90 attached to the piston of an hydraulic cylinder 91, Fig. 5. Transverse guides 67 at the foot of the frame comprise channel girders 67a, 67b carrying inverted T-shaped, horizontally movable fingers 68, the webs of which extend between said channel girders and engage them by rollers, Fig. 10 (notishown). The fingers 68 are extended to form outer ends 72, 73 engaging the plate 3 and are actuated by a motor 82 through reduction gearing 79 driving a shaft with pinions engaging teeth cut in the aforementioned webs. In operation, the wall unit is raised to the position shown in Fig. 5, the ends 73 of the fingers 68 are driven forward so that they enter the spaces in the hearth 32 below the plate 3, the latter being then lifted slightly and the hearth driven away. The frame is then lowered to deposit the plate 3 on the mill table 2 which moves it towards the mill. The operations are then performed in reverse order on a plate requiring reheating.
Patent GB-1516247-A (GB)
Title: Process for producing carbon fibres
IPC: C08K7/06
Filed: 1976-09-07
Abstract: 1516247 Carbon fibres JAPAN EXLAN CO Ltd 7 Sept 1976 [8 Sept 1975] 37087/76 Heading C1A [Also in Division B5] Carbon fibres are made by heat-treating an acrylonitrile fibre made from an acrylonitrile homopolymer or copolymer containing at least 85 mol per cent acrylonitrile impregnated with or containing at least 0À01%, based on the total weight of the fibre, of an aminosiloxane at a temperature of at least 150C for 0À1 sec to 30 mins whereby the fibre shows 20 to 80% w/w undissolved matter on immersion in 60% aqueous sodium thiocyanate solution of 80C for 20 mins; and then heating the fibre to carbonize or graphitize it; the aminosiloxane having the general formula: where R 1  is a hydrogen atom, a C 1  to C 6  alkyl group or an aryl group; R 2  and R 3  are each a C 1  to C 6  alkyl group or an aryl group; R 4  is a hydrogen atom or a group where R 7  and R 8  are each a C, to C 6  alkyl group and R 9  is a hydrogen atom or a C, to C 6  alkyl group; R 5  and R 6  are each a hydrogen atom or a C, to C 6  alkyl group; A is an alkylene group containing not more than 5 carbon atoms or an arylene group; x and y are positive integers which give a molecular weight of the aminosiloxane of not more than 100,000. Preferably, the acrylonitrile fibre contains at least 90 mol per cent of acrylonitrile, is impregnated with or contains 0À05 to 5% by weight of the aminosiloxane, the water content of the acrylonitrile fibres in a water-swollen state is 20 to 200% and heat-treatment is conducted at 160 to 550C for 0À2 sec to 20 mins. The fibres are desirably thermally stabilized by heating in an oxidizing atmosphere (e.g. air) at 150C to 400C, suitably while held under tension, and then carbonized or carbonized and then graphitized in a non-oxidizing atmosphere (e.g. nitrogen) at above 800C, carbonization and graphitization being desirably effected under tension. Carbonization may be effected at 800 to 2000C and graphitization at 2000 to 3500C.
Patent GB-1076539-A (GB)
Title: Structural steel element
Inventor: RITTER JOSEPH
IPC: E04C5/065
Filed: 1965-09-01
Abstract: A steel element particularly for reinforcing concrete comprises two parallel bars connected by members welded to ribs on the bars, the members being of rectangular cross section with their main faces in planes perpendicular to the bars.  The rods are round, the connecting members rectangular in three dimensions and the ribs of various cross sections.
Patent GB-1035866-A (GB)
Title: A process for the purification of alkylene oxides
IPC: C07D301/32
Filed: 1964-09-14
Abstract: Alkylene oxides containing carbonyl-group bearing compounds are purified by treatment in the gaseous phase with an alkali metal borohydride in the presence of 0.1% by weight (based on alkylene oxide) to the dew point concentration of water.  It is preferred to use the borohydride supported on an inert carrier, preferably pumice stone.  Alternatively, the borohydride can be used as a suspension in a liquid distributing agent, e.g. hydrocarbons, ethers or alkylene oxides.  The purification is conveniently effected by distilling the impure alkylene oxide and introducing the borohydride into the column at a point where the water concentration is within the required range.  Examples relate to the treatment of propylene, 1,2- and 2,3-butylene oxides.  Reference has been directed by the Comptroller to Specification 891,823.
Patent GB-814181-A (GB)
Title: Improvements in or relating to the production of titanium
Inventor: SMOLINSKI JOSEF
IPC: C22B34/12
Filed: 1955-12-31
Abstract: 814,181. Extracting titanium. MINISTER OF SUPPLY. March 22, 1957 [Dec. 31, 1955, Oct. 25 1956], Nos. 37549/55 and 32526/56. Class 82(1) Titanium is prepared by the continuous reduction of titanium tetrachloride vapour with an alkali or alkaline earth metal which is dissolved in a melt consisting of molten halides of the same or other such metals, a divided reaction vessel being employed so that no undissolved reducing metal comes into contact with titanium tetrachloride vapour. As shown in Fig. 1 of the first Provisional Specification, the reactor, heated by furnace 7, consists of a tubular steel container 1 housing a central, open-ended steel tube 2, extending below the surface of the molten halides 5, to form a divided cell, the lower end of which is provided with an outlet 4. The outer, annular, chamber 11 has an inlet 10 through which titanium tetrachloride vapour and an inert gas, such as argon, are supplied, the former from reservoir 12 and vaporizer 13 and the latter from side tube 14, an inlet 3 for supplying additional fused halides to the melt and an exhaust tube 15. The inner chamber, formed by the tube 2, has an inlet 17 connected to a press 16 for the supply of reducing metal 6 by extruding a block thereof, an inlet and outlet 8 and 9 for inert gas and a thermocouple 19. Titanium, formed in chamber 11, sinks to the bottom of the vessel and may either be drawn off at 4 as a suspension in the fused salt, or a block of frozen salt containing titanium may be withdrawn by the insertion of a freezing device, shown in Fig. 3 of the Figures of the second Provisional Specification, into the outer chamber 11, which consists of a tube 26, through which cold air is passed, the top part of which is surrounded by thermal lagging sheathed in a stainless steel tube 27. The titanium may be separated from the salt mixture either by vacuum distillation or acid leaching. A modification (not shown) describes a large scale apparatus consisting of a funnel-shaped reactor having a large number of relatively small diameter steel tubes dipping below the surface of the melt through which titanium tetrachloride is passed, several larger diameter tubes, also projecting beneath the melt surface, for the addition of reducing metal and a central tube for the addition of salts to form the melt. The lower, narrow, end of the funnel is fitted with a sump which may be sealed from the rest of the reactor by a frozen plug of salt, thereby enabling a quantity of molten salt containing titanium to be withdrawn.
Patent GB-1084010-A (GB)
Title: A method of preparing high-strength metal workpieces having a hard surface
IPC: C23C10/40
Filed: 1966-08-22
Abstract: A martensitically hardenable alloy steel of composition: .C.less than 0.1% .Si.less than 0.5% .Mn.less than 0.5% .Ni.10 to 30% .Ti.0.25 to 2% .Mo.0 to 10% .Co.0 to 12% .Al.0 to 0.5% .Nb, Ta and/or Zr.0 to 2% .B.0 to 0.1% .Ca.0 to 0.1% .Fe.and impurities remainder, is chromized, e.g. at 1050 DEG C. in a mixture comprising an inactive ceramic material such as alumina or magnesia and either (a) a halogen compound and an Fe-Cr alloy having between 30 and 50% Cr, or (b) 5 to 15% CrCl3 (or corresponding quantity of CrF3 or CrBr3), and then age-hardened e.g. at 480 DEG C. for 3 hours, to yield a strong and hard workpiece.  Prior to age hardening the chromized workpiece may be solution treated at 820 DEG C. for 1/2 hour and air cooled to form Ni martensite structure.
Patent GB-1122628-A (GB)
Title: Xerographic fixing device
IPC: G03G15/20
Filed: 1965-09-02
Abstract: 1,122,628. Printing processes. RANK XEROX Ltd. 2 Sept., 1965 [30 Sept., 1964], No. 37595/65. Heading B6C. [Also in Division G2] Thermoplastic resin material which has been transferred in image form in a xerographic printing-machine to a support sheet is fixed thereto by a heat fusing device comprising two rollers between which the sheet is conveyed. The upper roller is heated and within it is located a quartz tube supporting a resistance heating element. The roller has a covering of tetrafluoroethylene resin, to which is applied, prior to contact with the sheet, silicone oil transferred to the roller from a container by means of an indexed roller in the container and a wick. The upper roller is driven in synchronism with the sheet conveyers. The coating and oil prevent set-off of the thermoplastic resin on to the upper roller. The lower roller has a rigid core, a covering of silicone rubber, and a coating of tetrafluorethylene resin, and is slidable vertically, by means of air pressure acting on a diaphragm, into and out of contact with the sheet and upper roller, this movement taking place once for each sheet. A clutch is provided by means of which the linear velocity of the upper and lower rollers is maintained the same, in spite of a decrease of the distance between the centres of the rollers while in contact with each other due to increased pressure acting on the compressible rubber layer of the lower roller. Reference has been directed by the Comptroller to Specification 1,016,863.
Patent GB-934494-A (GB)
Title: Improvements in, or relating to, refrigerators
IPC: F25D21/06
Filed: 1959-11-06
Abstract: 934,494. Refrigerating. A. C. J. ERB. Nov. 6, 1959 [Nov. 12, 1958], No. 37652/59. Class 29. In a refrigerator having an evaporator 3 in a storage compartment, a thermal element 7 in the compartment or 15 on the evaporator serving to cycle the compressor, a spongy absorbent mass 8 in contact with the evaporator is saturated with water and ice the latter being formed during on-cycles and melting during off-cycles. As shown the mass 8 is a layer of sponge cloth held in place by bands 9 including springs 10 and has a depending flap 11 guiding excess water into a container 12 which may be of substantial capacity or be emptied periodically by a syphon. In a modification the refrigerator has upper and lower freezer and storage compartments each with its own evaporator each or both of which have sponge cloth in contact therewith. The sponge cloth may be carried between the evaporator and a grid spaced therefrom.
Patent GB-974047-A (GB)
Title: Process and apparatus for the treatment of domestic refuse
IPC: C05F9/02
Filed: 1963-09-25
Abstract: <PICT:0974047/C1/1> Partially fermented domestic refuse containing metal and plastic material is subjected to a combined sorting and crushing treatment in a device 6, large lumps of metal and plastic material being cast out and passed on a conveyer 7 to a baling press 13, and the crushed material is passed on a conveyer belt 9 via an overhead magnetic separator 8 to a fine grinding mill 10 and a vibratory screen 11. The fermentation of the refuse is then completed.
Patent GB-1072985-A (GB)
Title: Electrode support
IPC: H01J21/36
Filed: 1964-09-17
Abstract: 1,072,985. Thermionic cathode tubes. GENERAL ELECTRIC CO. Sept. 17, 1964 [Oct. 24, 1963], No. 38063/64. Heading H1D. An electron discharge device includes an annular metallic cathode terminal 12 (Fig. 8) and an insulating spacer 24 defining an electrode cavity, a cathode 30 carried by a metal support sleeve 25, and an annular metal disc 22, the metal support sleeve 25 being fixed to the inner peripheral surface of disc 22 and dise 22 being fixed to the inner peripheral surface of the cathode terminal 12. As shown in Fig. 1, cathode terminal 3, cathode support sleeve 11, disc 10 and spacer 5 comprise a tube together with ceramic spacers 4, 6, grid terminal 2 carrying a grid, anode terminal 1 carrying an anode, and heater terminals 7, 8. The assembly of cathode, nickel-chromium alloy support sleeve, tantalum or stainless steel disc, titanium terminal, and ceramic spacer is formed (Figs. 2-7, not shown, and Fig. 8) by placing a nickel shim 21 over a recess in terminal 12 to overlap the recess and the surface of the terminal around the edge of the recess, spot welding the shim to the terminal, placing disc 22 over the the shim, pressing the disc and shim into the recess and temporarily securing the disc by cement, placing spacer 24 over the terminal and cementing it, compressing the assembly and heating it in a vacuum oven to a temperature in the range of 800‹ C. to 1100‹ C. so that shim 21 and terminal 12 alloy, and welding the cathode support sleeve 25 to disc 22 along interface 29. The upper surface of cathode 30 is shaved so that it is accurately spaced with reference to the upper surface 31 of spacer 24. In alternative embodiments, the recess housing the disc is in the insulating spacer (Fig. 9, not shown), the disc is not within a recess but is located in the central aperture of the terminal and held against the spacer by a lip on the terminal (Fig. 10, not shown), the disc is coaxial with the terminal with their adjacent faces secured together by a nickel shim (Fig. 11, not shown), the outer periphery of the disc abuts the inner periphery of the terminal and the disc also abuts the spacer and is sealed to it by a nickel shim (Fig. 12, not shown).
Patent GB-902076-A (GB)
Title: Improvements relating to the production of silicon tetrachloride
Inventor: HAMER WILLIAM EDWARD
IPC: C01B33/08
Filed: 1959-11-10
Abstract: Silicon tetrachloride is produced by reacting chlorine with a mixture of silicon, silica, and carbon, preferably in the form of fluidized bed.  The reaction temperature should be kept substantially constant by suitable choice of proportions of reactants, e.g. at 1000 DEG  C. to 2000 DEG  C. Two or three of the solid reactants may be compressed into granules with particle size less than 10 mesh.  The silicon may be 96 to 99% pure, but ferrasilicons of high silicon content may also be used.  By choosing the correct proportions of reactants, the process may be carried out continuously.  The molar proportion of silicon to silica may be 1:10 to 1:20 and the silica and carbon are generally present in proportions required for the conversion of the carbon to carbon monoxide.
Patent GB-1316522-A (GB)
Title: Method of preparing particulate blends
IPC: A61K9/19
Filed: 1971-08-13
Abstract: 1316522 Particulate compositions E I DU PONT DE NEMOURS & CO 13 Aug 1971 [14 Aug 1970] 38131/71 Heading A5B A biologically active homogeneous particulate composition is prepared by (a) spraying droplets of an aqueous solution of a sugar or sugar alcohol, and a lesser amount of a biologically active solid into a stirred boiling fluorocarbon refrigerant at below -20C to freeze the droplets and (b) removing all water from the frozen droplets under reduced pressure. The solution may also include an electrolyte salt and/or a tabletting lubricant. It may be made by dissolving the sugar or sugar alcohol and lubricant in the aqueous solvent, adjusting the pH and then adding the biologically active solid. The refrigerant may be agitated ultrasonically. The following ingredients are specified: biologically active solids: luciferin, bovine albumin, morpholinopropane sulphonic acid, 2, 6-dichlorophenol indophenol, reduced nicotinamide-adenine-dinucleotide, nicotinamide-adenine-dinucleotide, luciferase, hexokinase, glucose-6-phosphate dehydrogenase, lactate dehydrogenase, pyruvate kinase and bovine albumen, sugars and sugar alcohols: mannitol, maltose, lactose, inosital and dextran, electrolyte salts: KCl, (NH 4 ) 2  SO 4 , NaCl, MgCl 2 , and MgSO 4 , lubricants: polyethylene glycol and leucine and refrigerants: CCl 2 F 2 , CCl 3 F, CClF 3 , CF 4 , CHCl 2 F, CHClF 2 , CHF 3 , C 2 Cl 2 F 4 , C 2 ClF 5 , CBrF 3  and C 2 Br 2 F 4 .
Patent GB-1481622-A (GB)
Title: Electrical circuit
IPC: B60T8/88
Filed: 1974-09-13
Abstract: 1481622 Monitoring anti-skid circuits KELSEY-HAYES CO 13 Sept 1974 [19 Oct 1973] 38272/76 Divided out of 1481621 Heading F2F The description is the same as that of the parent Specification, but the claims relate to a circuit for use in an anti-skid system comprising an input circuit, connected to an input terminal adapted for releasable connection for the receipt of an input signal and to a supply potential and comprisimg a first electronic switch which is conductive upon the receipt of such an input signal in conjunction with the potential, and an output circuit comprising a second electronic switch in series with a voltage divider between the terminals of the supply voltage, this switch also being conductive upon receipt of the output from the first switch in conjunction with the supply potential, the voltage divider supplying to an associated output terminal, adapted for releasable connection for the provision of an output signal from the overall circuit, a signal as a fraction of the output from the second switch.
Patent GB-840321-A (GB)
Title: Improvements relating to impregnating processes
IPC: H01F41/00
Filed: 1956-12-14
Abstract: Porous articles e.g. electric transformers, coils, and paper-insulated cables are impregnated by heating the article, introducing hardenable impregnating material having low boiling fractions into a container in which the article has been placed, said container being at the temperature of the impregnant, pulling a controlled vacuum in the container over the impregnant, said vacuum being controlled to remain below the value at which the low boiling fractions of the impregnant will boil, thereby to remove vapour entrapped in the article without removing vapour from the impregnant, applying pressure to the container over the impregnant, and hardening the impregnating material.  The articles may be heated in the vacuum prior to impregnation.  The steps of evacuating the container and then applying pressure may be cyclically repeated and the pressure applied may be either a positive pressure e.g. of nitrogen or merely a return to atmospheric pressure.  After the hardening step, the article may again be heated in an evacuated container into which further impregnating material is then introduced to ensure substantially complete impregnation and to build up a surface coating on the article.  The impregnant may be asphalt or a solution of a thermosetting oxidizing alkyd resin.
Patent GB-846651-A (GB)
Title: Improvements in or relating to vapour-exchange devices
IPC: A61M16/18
Filed: 1958-11-27
Abstract: 846,651. Respiratory appliances. FABIAN, L.W., and NEWTON, G.W. Nov. 27, 1958 [Dec. 16, 1957], No. 38310/58. Class 81 (2). A valve assembly for mounting on top of a liquid anaesthetic container is arranged to pass an adjustable proportion of inhaled air or gas through the container. The slide of the assembly is a rectangular bar 10, Fig. 5, with a central aperture 13 and having a rack 15 in its upper surface so that it can be adjusted by a pinion on a control spindle. The slide is mounted in a guideway 11, Fig. 4, in a body 4 in such a way as to separate the compartments a, b, c, d. With the slide in the position shown the port 13 allows communication between chambers a and c. Inhaled air enters the conduit 6 in the direction of the arrow and passes into chamber a, whence it passes through to chamber b and out to the face mask through conduit 7. If the slide is pushed to the further end of the guide, the aperture 13 provides communication between chambers a and b but a is sealed off from c. However c communicates with d around the end of the slide. Under these conditions air entering chamber a from inlet 6 passes to chamber b and thence through duct 8 into the anaesthetic container. It returns from the container through duct 9 to chamber d and so passes through chamber c to the outlet 7. Intermediate positions of the slide cause corresponding proportions of the air to be passed through the container. A modified form of valve, using a T- shaped slide, is described with reference to Figs. 7 and 8 (not shown).
Patent GB-1070877-A (GB)
Title: Bucket assembly for a bucket loader
Inventor: LOFTS KENNETH HENRY
IPC: E02F5/20
Filed: 1964-09-19
Abstract: 1,070,877. Load handling. G.K.N. GROUP SERVICES Ltd. Nov. 30, 1965 [Sept. 19, 1964], No. 38329/64. Heading B8H. [Also in Division E1] Mounted about a pair of spaced parallel axes on an excavator shovel are a pair of power pivotable arms provided with gripper means on the arm ends projecting ahead of the shovel. The arms may be mounted directly upon the upper transverse wail of the shovel or on a frame detachably mounted on said wall. The gripper means, of which several forms are described, are of shapes appropriate to the object to be gripped.