baber/WOPTO huggingface dataset:
Patent GB-892130-A (GB)
Title: Production of boron compounds
Inventor: KUMAGAI RIKIO N
IPC: C01B35/06
Filed: 1959-04-17
Abstract: Boron trichloride is produced by the reaction of boric oxide, carbon and chlorine, characterized in that finely divided (size 20-200 mesh) boric oxide and carbon, initially screened finer than 200 mesh, are contacted with a fluidized bed of petroleum coke of 20-200 mesh maintained in a <PICT:0892130/III/1> reaction zone at a temperature of 1000 DEG -1500 DEG F. and wherein chlorine gas is introduced as at least part of the fluidizing gas. Fluidizing gas, e.g. N2, is passed to a reactor 8 heated by a cylindrical electric resistance furnace (not shown) through inlet pipe 1, nickel preheater 3 and electric furnace 4.  The reactor 8 is equipped with inlet 9, solids outlet 17 and gas outlet 10.  The heated gas passes through distributer plate 7 and maintains a bed of petroleum coke in a fluidized state.  On obtaining a reaction temperature of 1000 DEG -1500 DEG C. in the reaction zone 8, the nitrogen fluidizing gas may be replaced partly or wholly by gaseous chlorine and a mixture of boric oxide and carbon, e.g. carbon black, lamp black, charcoal or petroleum coke of size 200-400 mesh, particularly furnace combustion black of particle size 25-500 milli microns, is added to the bed at a constant rate from inlet 9 which may be a screw conveyer connected to a storage hopper (not shown).  Reference is made to the use of 100-200% of the stoichiometric quantity of carbon required for the reaction with boric oxide and chlorine and to the operation of the process employing a boron content of 0,5% wt, advantageously 0,1-0,3% wt., of the total solids present in the reactor. Gaseous effluent containing boron trichloride and entrained solids leaves the reactor through 10 and passes to a stainless steel box 11 containing a series of baffles to remove the major portion of entrained solids, which are extracted through line 18. The remaining gases pass through conduit 12 to cyclone 13 and thence through 14 to glass wool trap 15 to remove remaining entrained solids, which are extracted through conduits 19, 15 respectively.  Purified gases containing boron trichloride pass through 16 to a condenser (not shown) and are cooled therein to -40 DEG C. to condense liquid boron trichloride, which is recovered, uncondensed gases thereafter passing to a caustic soda scrubber, or metering device to appropriate gas analysis.  Specification 863,503 is referred to.
Patent GB-197948-A (GB)
Title: Improvements in gas-generators
IPC: C10J3/08
Filed: 1923-05-17
Abstract: 197,948. Marconnet, G. May 20, 1922, [Convention date]. Blast apparatus; in dicators.-In a gas prc ducer in which th charge is forced down wards by vertically moving stampers 6, free passage for the blast to the middle o the charge is main tained by pokers 13 mounted in the tuyere casings 9. The tuyere casing is formed with a downwardly directed outlet 11 closed by a lead plate 12, which melts when the level of the molten slag in the producer rises above the lower edge of the tuyere opening.
Patent GB-133118-A (GB)
IPC: A61F2/58
Abstract: 133,118. Browne, A., (Caron, L. G.) .Aug. 30, 1918. No Patent granted (Sealing fee not paid). Limbs, artificial. - A hand, of the kind comprising similarly-shaped fixed and pivoted hook members arranged so that the pivoted member can be moved away from the fixed member by a cable acting in opposition to spring restoring-means, is designed (1) to facilitate the grasping of cylindrical objects with their axes either parallel or at right-angles to the length of the hand, (2) with means for regulating the tension of the restoring-spring. and (3) so that the pivoted member can be locked in any desired position. The hand comprises two D-shaped plates with internally-roughened projecting hooks 26, 27. One plate is fixed, and the other pivoted, as shown in Fig. 2. The hooks 26 on the plates fit together to form one composite hook. Roughened bulges 28 in the two plates permit of the holding of tools with handles parallel to the forearm, while other bulges 29 permit of the holding of the tool-handles transversely of the forearm. A pull on the cord 40 rotates the pivoted plate by displacing the lever 30 and its attached quadrant guide against the action of a spring 31. A fixing-screw 34 engages the guide tq lock the pivoted plate in any desired position. A screw 33 on the guide is used to regulate the tension of the spring. To assist in holding some tools, a strap 36 may be engaged with buttons 37 on the two plates. The ends of the hooks 26 are formed similarly to crochet hooks to facilitate the buttoning of coats and like processes. The " dress " hand shown in Fig. 5, which may be substituted for the working hand, comprises a permanently bent little finger 44, a movable thumb, and three fingers movable as a complete unit. Two springs 47 maintain the finger unit and the thumb in the bent position. A pull on the cord 40 causes the fingers and thumb to open.
Patent GB-133159-A (GB)
IPC: C01B32/336
Abstract: 133,159. Bury, E., Ollander, O., and Bury, A. F. Oct. 4, 1918. Carbon.-Peat-coke prepared by distilling airdried peat at a temperature of 700-900‹ C., is used for the absorption of gases and vapours, such as ethylene, benzene, propylene, toluene, xylene, sulphuretted hydrogen, carbon bisulphide, and organic sulphur compounds from the products of distillation of organic material. The absorbed products may be separated by fractional distillation or otherwise. The peat-coke is placed in vessels, preferably combined with scrubbers, and the gases passed over it at approximately normal pressure and temperature. When the peat-coke has been used for some time it is removed through air-tight mains into a heating vessel for the removal of the gases or vapours. The residual peatcoke is cooled out of contact with the atmosphere and returned to the absorption chamber for further use.
Patent GB-233535-A (GB)
Title: Improvements in or connected with apparatus for spinning and winding artificial silk or viscose and such like
IPC: D01H1/242
Filed: 1924-05-31
Abstract: 233,535. Greenwood & Batley, Ltd., and Holt, T. W. May 31, 1924. Spindle-driving apparatus; spindle apparatus.- In spindle apparatus for spinning and winding artificial silk and the like the spindle a which carries the spinning box is driven bv a clutch f, which is connected and disconnected by moving the spindle vertically by means of a manuallyoperated device such as a cam g on a short shaft h. One part of the clutch is carried by a sleeve m loosely surrounding the spindle and driven by gears m<1>, n enclosed in a casing containing lubricant. The spindle is mounted in plain or bail bearings b, c, or in any type of self-centring flexible beamings, and the sleeve m is provided with an upper thrust washer or ball or like bearing and a lower plain or ball bearing. The mounting of the sleeve eliminates side thrust on the. spindle. The sleeve bearings may be mounted in the casing. A drip tray l is suspended from the bracket j which carries the cam g.
Patent GB-639853-A (GB)
Title: Improvements in or relating to the preparation of new diamines
IPC: C07C217/62
Filed: 1947-05-19
Abstract: A diamine of the formula Y=N.R.CH(Ar) CH2NH2, where Y=N- is a low molecular tert.-amino group, R is a low molecular aliphatic bridge and Ar is monocarbocyclic aromatic, is prepared by reaction of a tert.-aminoalkyl halide of formula Y=N.R.X, where X is halogen, with an arylacetonitrile of formula ArCH2CN in the presence of a strong metalating base such as an alkali amide or alkali hydride, and catalytically hydrogenating the resultant 1-(tert.-aminoalkyl) - 1 - arylacetonitrile.  Y=N-may be derived from, for example, dimethylamine, methylbutylamine, piperidine or morpholine.  The bridge R may be interrupted by -O-, -S-, -SO-, -SO2- or -N(alkyl)-groups, e.g. -[CH2]3S[CH2]2-, Ar may be, for example, phenyl, and may be substituted by hydrocarbon groups, chlorine, bromine or iodine, tert.-amino groups, e.g. diethylamino or piperidyl or ether groups.  Hydrogenation is preferably performed in methanolic ammonia with Raney nickel at 500-800 lbs. and 30-50 DEG  C.  The diamine may be heated with aqueous nitrourea to give a ureide, e.g. 4-diethylamino-2-phenyl-1-ureidobutane from 4-diethylamino-2-phenyl-butylamine.  Alternatively, the primary amino group may be converted into a guanido group [NH2C(=NH)NH-] by heating the diamine with an aqueous S-methylisothiourea salt, to give e.g. 4-diethylamino-1-guanido-2-phenylbutane sulphate or 4-diethylamino-1-guanido-2-(4-chlorophenyl) butane hydroiodide. In addition, salts of the diamines may be prepared by treatment with an organic or inorganic acid.  In the examples: (1) 2-dimethylaminoethyl chloride and phenylacetonitrile in benzene are treated with sodamide to give 3-dimethylamino-1-phenylbutyronitrile, which is hydrogenated to give 4-dimethylamino-2-phenylbutylamine; (2) is as (1) with diethylamino group in place of the dimethylamino; (3) is as (2) with a chlorophenyl group in place of the phenyl; (4) 3 : 4-dichlorobenzyl chloride is treated with sodium cyanide and a trace of sodium iodide to give 3 : 4-dichlorophenylacetonitrile, which treated with 2-diethylaminoethyl chloride as before gives 1-(3 : 4-dichlorophenyl)-3-diethylaminobutyronitrile, hydrogenation of which gives 2-(3 : 4 - dichlorophenyl) - 4 - diethylaminobutylamine; (5) exemplifies the reaction when the phenyl group is substituted by methoxy or benzyloxy.  Examples of further compounds are given.  The Specification as open to inspection under Sect. 91 states that the group Ar may be aromatic or heterocyclic and specifies the radicals naphthyl, thienyl, pyridyl and quinolyl.  This subject-matter does not appear in the Specification as accepted.
Patent GB-281172-A (GB)
Title: Improvements in or relating to switches for electrically heated kettles and like containers
IPC: H05B1/02
Filed: 1927-05-19
Abstract: 281,172. Cable Accessories Co., Ltd., Reeves, F. H., and Bichell, S. F. May 19, 1927. Electrically-released switches.-Circuit between the contacts d of an electric kettle or like container is normally made by the engagement of a hook f<2> on the rod f, carrying the movable contacts e and resetting handle f<1>, with a ratchetwheel g which is secured by a fusible body i to a pin h. On the attainment of a certain temperature the body i melts and allows the wheel to be rotated by the throw-off action of the spring j. The parts g, h, i become solid when the body i solidifies, and are removable as a unit for replacement when the fusible body has lost its usefulness. The head of the pin h may be cupped to prevent loss of the fusible body and is slotted for the reception of a screw-driver or otherwise formed to facilitate removal,
Patent GB-197966-A (GB)
Title: Process for the production of colloidal solutions and reversible dried residues
IPC: B01J13/00
Filed: 1923-05-22
Abstract: Colloidal sols are produced by mechanical dispersion of a substance in the dispersion medium in presence of the usual protective colloid and in addition an electrolyte in the proportion almost sufficient to precipitate the sol, if it were at rest.  This proportion is determined by titration of a standard sol of the substance.  In examples, crude sulphur and lamp-black respectively are colloidalized in water in presence of glue and common salt.  It is stated that sols of almost any desired concentration are thus obtained, which are only coagulated by extremely strong alkalies or acids.  The sols may be further concentrated by treatment in a centrifugal apparatus, and may be carefully dried to produce reversible gels.
Patent GB-107878-A (GB)
Title: Improvements in the Manufacture of Flycatchers.
IPC: A01M1/16
Filed: 1916-09-23
Abstract: 107,878. Hardcastle, E., Sharp, S., and Kay Bros. Sept. 23, 1916. Adhesive traps.-To prevent curling-up, a fly-catcher of the type described in Specification 1720/14 is provided at its base with a weight situated either within the wrapping, or, as shown at C, attached by adhesive after sealing up the sulplus parts of the wrapping at the lower end of the fly-catcher.
Patent GB-1442483-A (GB)
Title: Imidazo-1,2-a- pyrimidine derivatives
IPC: A01N43/90
Filed: 1974-03-27
Abstract: 1442483 Imidazo[1,2-a]pyrimidine derivatives IMPERIAL CHEMICAL INDUSTRIES Ltd 26 March 1975 [27 March 1974] 13563/74 Heading C2C The invention comprises compounds (I), where R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are C 1-6  alkyl and X and Y are independently carbonyl or optionally etherified or esterified hydroxymethylene and their preparation by reacting a compound (II) with glyoxal or glyoxalic acid. Fungicidal compositions for agricultural and horticultural use, comprises compounds (I) and a suitable diluent or carrier.
Patent GB-150299-A (GB)
Title: Propellant powder and process of making same
IPC: C06B23/04
Filed: 1920-05-19
Abstract: 150,299. Du Pont de Nemours & Co., E. I., (Assignees of Henning, C. I. B.). Aug. 23, 1919, [Convention date]. Explosives.-Tin or an alloy of tin in a finely divided state is disseminated in a propellent explosive in order to counteract metallic fouling in gun barrels. For example, 2.5 to 5 per cent of powdered tin is added to an explosive containing nitrocellulose while the explosive is being treated with solvent. Other usual ingredients such as diphenylamine, graphite, and nitro compounds may be added to the explosive. Reference has been directed by the Comptroller to Specification 148,263.
Patent GB-1046857-A (GB)
Title: Variable reactance transistor circuits for use in television receivers
IPC: H04N5/12
Filed: 1964-04-03
Abstract: 1,046,857. Automatic phase control systems; transistor reactance circuits. STANDARD TELEPHONES & CABLES Ltd. April 3, 1964 [April 9, 1963], No. 13824/64. Headings H3A and H3R. In a television receiver sine-wave line oscillator 1 the automatic phase-control voltage from a high-resistance source is applied via resistors 5, 6 to a varactor diode 4 connected via coupling capacitors 7, 8 across the base collector junction of a transistor reactance 3 shunting the oscillator tuned circuit 2. The transistor is conductively biased from a potentiometer and with the diode reactance produces substantially 90 degrees phase-shift between collector-emitter voltage and transistor current. An amplifying stage may be provided to achieve greater magnification of the diode capacitance variations.
Patent GB-700968-A (GB)
Title: Lashing for securing motor cycles in transport vehicles such as aircraft
IPC: B60R9/10
Filed: 1952-05-30
Abstract: 700,968. Stands for motor-cycles. BLACKBURN & GENERAL AIRCRAFT, Ltd., and ROWE, N. E. May 30., 1952, No. 13861/52. Class 136(1) A lashing for securing- motor-cycles in transport vehicles such as aircraft comprises a part 3 shaped to fit over the saddle which is connected by two adjustable lines 4, 5 to points 8, 9 on the floor 2 forwardly of the saddle and a chock 11 which engages the front and sides of the front wheel and is secured to the floor by quick release pins. The part 3 is connected by a universal joint 12 to an arm 13 which is pivoted at 14 to a side wall 15 of the freight compartment. The arm 13 is formed of two telescopic members so that it is adjustable in length. Lateral displacement of the rear wheel is prevented by a pair of side guards or a channel section member 10.
Patent GB-360816-A (GB)
Title: Improvements in heat transmitting media for heating systems
IPC: C09K5/08
Filed: 1930-05-06
Abstract: 360,816. Heating systems. LUCAS, O. D., 49, Linden Gardens, Paddington, London. May 6, 1930, Nos. 13865, 13866, and 22006. [Class 64 (ii).] Diphenyl, or diphenyl ether is used in liquid form - as a heat-transmitting medium without pressure up to 260‹ C., and under a pressure of about 500 lb. per sq. in. at a temperature of 530‹ C. The liquid is circulated through pipes under a constant head and thermostatic control of the circulation and the fuel supply is provided. The process is applicable for heating water, vulcanizing rubber, evaporating and concentrating liquids, heating hot presses, oil distillation, heating buildings and the like. In the latter case the main heat distribution in a building may be by diphenyl or diphenyl ether, and heat exchangers may be provided for each flat or set of rooms. The material is an electric insulator and may be used for electric heating with a resistance heater immersed in it. The material may be heated in a tubular heater by an oil burner and circulated by thermo-siphon or by a pump. The heat may be utilized in a jacketed pan or in concentric pipe system. When used below the boiling-point of the material, the system may be provided with air vents to allow escape of air when filling and heating, and to allow entrance of air when the system is emptied. When used under pressure, the system is provided with an air vent opening inwards only. A pressure expansion vessel filled with nitrogen may be provided. A reservoir may be provided into which the system is automatically emptied below a predetermined temperature so that solidification of the material does not take place in the main system. When heating is by an immersed electric resistance, thermostatic control of the current may be provided, and when heat is only required to be transmitted through one surface, the remaining surfaces may be heat-insulated. A heating system working below boiling-point may be provided with an expansion vessel into which the material is forced by a booster pump having a loaded inlet valve. The fuel supply to the heater is thermostatically controlled by the liquid delivered from the heater, and another thermostat controls the speed of the booster pump. A separate thermostatically controlled heater may be provided to generate diphenyl vapour which drives the booster pump. Means are provided for keeping the highpressure system filled with diphenyl. Specification 336,269, [Class 32, Distilling &c.], is referred to.
Patent GB-496989-A (GB)
Title: A method of and apparatus for treating corn and like grain
IPC: B02B1/08
Filed: 1938-05-10
Abstract: 496,989. Conditioning grain. MIAG MUHLENBAU UND INDUSTRIE AKT.- GES., and GEHLE, H. May 10, 1938, No. 13887. [Class 58] Grain is fed into a moistening device a in which its moisture content is raised to about 22 per cent and then passes to a radiator heating compartment b where it remains for some time at a temperature of 50 to 60‹ C. The grain next is led into a vacuum drier c where it is treated at a temperature of 37 to 40‹ C. and at an absolute pressure of 4 to 6 cms. of mercury. Finally, the grain is treated in a cooling compartment d until it corresponds to the temperature of the outer atmosphere.
Patent GB-1192905-A (GB)
Title: An Oscillator Circuit
IPC: H03B5/20
Filed: 1969-03-18
Abstract: 1,192,905. Transistor oscillator circuits. INTERNATIONAL BUSINESS MACHINES CORP. 18 March, 1969 [15 April, 1968], No. 14009/69. Heading H3T. An oscillator circuit comprises a first differential amplifier having an input circuit to produce a frequency dependent leading phase shift between one input and the output and a second differential amplifier having an input circuit to produce a frequency dependent lagging phase shift between one input and the output, the output circuit of each amplifier being connected to the input circuit of the other. The upper, or phase-reversing, input terminals of each of the differential amplifiers 10, 30 is connected to the output of the other via a resistor 11, 31 respectively, and to its own output via a resistor 12, 32 equal in value to the corresponding input resistor. The lower input terminal of amplifier 10 is connected to the output of amplifier 30 via capacitor 14 and to earth via a resistor 15, across which resistors 16, 17, 18 may be shunted by means of transistors 20, 21, 22 acting as switches, in order to change the frequency. The lower input terminal of amplifier 30 is connected to the output terminal of amplifier 10 via resistor 35 and to earth via capacitor 34. The resistors 15-18 may be replaced by a single variable resistor or a field-effect transistor acting as a variable resistor. The feedback resistor 32 may be shunted by an amplitude-limiting circuit comprising reversed diodes 40, 41 in series with capacitor 42: Zener diodes may be used.
Patent GB-131735-A (GB)
Title: Improvements in or relating to Silos.
IPC: B65D90/54
Filed: 1918-08-29
Abstract: 131,735. Trent Concrete, Ltd., and Sargeant, E. F. Aug. 29, 1918. Corn-silos.-A silo is formed with external doors or shutters A arranged to slide vertically between the walls C of the silo and ladder strings B. In the closed position, the doors are clamped tightly by screws F passing through the ladder strings. Pivoted stops H hold the doors in the raised position until the clamping is effected. Permanent stops G, which also serve as weather boards for the doors underneath, are provided for the doors when these are open. The floor of the silo is not connected to the walls or the foundations, so that it can settle down should the ground on which it is laid subsequently sink. Any faults caused by such settlement can be made good by means of cement.
Patent GB-719578-A (GB)
Title: Improvements in screw connections for multi-part pistons of internal combustion engines, especially engines for automobile vehicles
IPC: F02F3/00
Filed: 1952-06-03
Abstract: 719,578. Pistons. MAYBACH, K. June 3, 1952 [June 15, 1951], No. 14033/52. Class 122(1) A screw connection for a multi-part piston comprises elements 8 screwed into the piston skirt 2 and provided with heads 12 or nuts thereon let into bores 11'of the piston head 1 and a threaded cap 17 screwed into each of the bores 11 to protect the heads 12 or nuts, each screw head 12 or nut being provided with serrations 15 for a tool for rotating them. The heads 12 are locked in position by rings 21 which engage the serrations and also bores 23 in the recesses 11. The caps 17 have serrations 19 for a tool and thin ring portions 25 larger than the diameter of the bores 11 to lock them in position; the rings 25 may be caulked into recesses 27. In a modification the recesses 11 are formed in sleeves inserted into the head, the sleeves being of steel and the head of aluminium, the sleeves have conical seats for conical flanges on the screws and the caps 17 have engaging bosses on the screw heads to retain them in position.
Patent GB-1457966-A (GB)
Title: Production of articles formed from bound members
IPC: D06B19/00
Filed: 1974-03-29
Abstract: 1457966 Bonded fabrics ANIC SpA 29 March 1974 [10 April 1973] 14150/74 Heading D1R A plurality of members impregnated with an aqueous dispersion of a binder is temperarily immersed in a liquified gas to coagulate the binder and the liquified gas is removed or allowed to evaporate from the product. Specified members are natural or synthetic fibres, filaments and fibrils and bodies formed therefrom such as woven and knitted fabrics. The binder may be a copolymer of butadiene with acrylonitrile or styrene, an acrylic polymer optionally including free carboxyl groups or a homopolymer, copolymer or terpolymer of vinyl chloride or vinyl acetate. The liquified gas may be air nitrogen or oxygen at a temperature of -30 to -220‹C. In the example a band of felt constituted by 90% of 1.5 denier 4 mm long nylon fibres and 10% viscose fibres is immersed in a 40% aqueous dispersion of a butadiene-acrylonitrile polymer plus curing agents and accelerators, and calendered to adjust the uptake such that the finished product contained 120-130 parts of dry binder per 100 parts fibres. The impregnated felt is passed around a roller immersed in a tank of liquid air, the speed of the felt and the depth of the roller in the tank being such that the felt is at 0‹C as it passes around the roller and at -40‹C as it leaves the tank. The frozen felt is thawed in a first oven and heated to cure the coagulated binder in a second oven. Alternatively one long oven at 160‹C is used to thaw the felt and cure the binder.