baber/WOPTO huggingface dataset:
Patent GB-910216-A (GB)
Title: Improvements in or relating to polymer production
IPC: C08F136/06
Filed: 1961-06-26
Abstract: A process for polymerizing butadiene-1,3 comprises contacting butadiene-1,3 under polymerization conditions with a catalyst selected from (1) a catalyst comprising (a) a compound of formula RnM where R is alkyl, cycloalkyl, aryl, aralkyl or alkaryl, M is aluminium, gallium, indium or thallium and n is the valence of the metal M, (b) a titanium halide of formula TiX4 where X is chlorine or bromine, and (c) an inorganic iodide of formula M1Ix where M1 is beryllium, zinc, cadmium, aluminium, gallium, indium, thallium, silicon, germanium, tin, lead, phosphorus, arsenic or bismuth and x is 2 to 5; and (2) a catalyst comprising (a1) a compound RnM as defined above, (b1) titanium tetraiodide and (c1) an inorganic halide of formula M11Xy where M11 is aluminium, gallium, indium, thallium, germanium, tin, phosphorus, antimony, arsenic or bismuth, X is chlorine or bromine and y is 2 to 5.  The process may be effected batchwise or continuously, in the solid phase or in the presence of diluents, e.g. benzene, toluene, xylene, ethylbenzene, propane, butane, pentane, isopentane, hexane, isohexane, isooctane, decane, cyclohexane, methylcyclohexane, styrene, butene-1, butene-2, vinyl halides, trichloroethylene, chlorobenzene and chloronaphthalene. Specified organometallic compounds are trimethyl, triethyl, triisobutyl, tri-n-dodecyl, tricyclopentyl, triphenyl, tri-p-tolyl and tribenzyl aluminium.  Many suitable titanium and inorganic halides are specified and examples describe the polymerization of butadiene in the presence of toluene and catalysts comprising triisobutyl aluminium and titanium tetrachloride with (I) antimony triiodide and (II and III) aluminium triiodide; triisobutyl aluminium and titanium tetraiodide with (IV) antimony trichloride, (V) phosphorus trichloride, (VI) stannic chloride and (VII) aluminium trichloride.  The products may be purified by steam stripping, the catalysts inactivated by adding ethyl alcohol or isopropyl alcohol, and the polymer stabilized by the addition of an antioxidant, e.g. phenylbeta-naphthylamine or 2,21-methylene-bis(4-methyl-6-tert. butylphenol).  The products have a predominantly cis-1,4 configuration and may be compounded with fillers, other polymers, e.g. natural rubber and polyethylene, and conventional vulcanizing ingredients.  They may be used in the manufacture of tyres and gaskets.
Patent GB-651935-A (GB)
Title: Improvements in and relating to flares
IPC: F42B10/56
Filed: 1948-09-01
Abstract: 651,935. Parachute flares. AKTIEBOLAGET BOFORS. Sept. 1, 1948, No. 23100. Convention date, Nov. 7, 1947. [Class 9 (ii)] A flare adapted to be dropped from aircraft comprises a sheet metal casing C enclosing a lightgenerating body 1 in a compartment 4 and a main parachute 2 separated from a secondary parachute 3 by a partition 9. A narrow strip 6 of casing separates the body 1 from the main parachute. Reinforcing rings 7 are welded to this strip and a supporting ring 8 is placed inside it. From the partition 9 to a closure 10 extends a sleeve 11 (Fig. 2) in which is a collet made in two parts 13, 14 provided with an electric contact 15 connected to an igniter 16 having a delay element 17 and a charge 18. When the flare is dropped an electric circuit through the igniter is closed and the delay element 17 is thereby ignited. This element ignites the charge 18, which forces out the rear collet 13 shearing a retaining pin 19 and thus discharges the secondary parachute. Simultaneously a clockwork mechanism 20, interposed between the collet and a detonator 21, is started. When it stops a firing pin 38 strikes the detonator to ignite a quickmatch 23. This match ignites a detonating fuze 24 in the supporting ring 8 (Fig. 1). The fuze bursts the strip 6 so separating the casing and allowing the main parachute to be drawn out and unfolded. At the same time the fuze ignites a quick-match 25 leading to a charge 27 placed between a cover 28 and a disc 29 welded to the cover. On ignition of the charge 27 by the quick-match the cover 29 is blown off and, through communicating holes 30, detonating compositions'31 are ignited which ignite the lightgenerating body 1. As this body burns the cover 28 and sheet metal casing are also consumed. Specification 10816/15, [Class 9 (ii)], is referred to.
Patent GB-1309023-A (GB)
Title: Dispenser cathodes
IPC: H01J9/04
Filed: 1971-04-19
Abstract: 1309023 Thermionic cathode constructions SIEMENS AG 19 April 1971 [5 March 1970] 23120/71 Heading H1D A dispenser cathode comprises an alkaline earth compound covered by a porous sintered body 3 having an outer moisture impermeable coating of a hydrophobic substance which is destroyed without residue during operation of the cathode. Ba or Sr CO 3  or BaO is covered with a W disc 3 coated with Os and/or Re 4 by diffusion heat treatment and then covered with paraffin dissolved in chloroform or polymethyl methacrylate in butyl acetate with phthalic acid-bis-2-ethyl ester. The solvent is evaporated leaving a protective layer.
Patent GB-604377-A (GB)
Title: Improvements relating to catalysts for hydrocarbon reactions
IPC: B01J27/06
Filed: 1945-09-07
Abstract: A catalyst for effecting reactions of aliphatic hydrocarbons, e.g. of paraffins and cycloparaffins as described in Specifications 604,395 and 604,410, [Group IV (b)], is produced by forming an anhydrous mixture of hydrogen fluoride and boron trifluoride, the hydrogen fluoride constituting more than 50 mols. per cent of the total fluoride; an olefine, e.g. butylene, may also be present in the mixture. e.g. in an amount of 1/2 to 25 per cent of the weight of hydrocarbon treated.  Gaseous boron trifluoride is dissolved in liquid hydrofluoric acid and may react therewith to form HBF4.  The activity of the catalyst may be altered by varying the partial pressure of the boron trifluoride, which is preferably above 50 lbs. per sq. in. and may be above 150 lbs. per sq. in.  Fluorine compounds may be recovered from the reaction mixture by reducing the pressure to liberate boron trifluoride, or by separating the liquid catalyst layer, followed by heating or extraction.  Hydrocarbon reactions using the catalyst may be carried out at from -30 DEG  to 250 DEG  F. and at pressures from atmospheric up to 1000 lbs. per sq. in.  In examples, natural gasoline is isomerized at 90 DEG  F. and 55 lbs. per sq. in., butane is isomerized at 122 DEG  F. and 350 lbs. per sq. in., and natural gasoline is cracked at 130 DEG  F. and 207 lbs. per sq. in.  Specifications 313,067, [Class 2 (iii)], 486,355; 559,067 and 563,280, [both in Group IV], also are referred to.ALSO:Reactions of aliphatic hydrocarbons, e.g. of paraffins and cycloparaffins as described in Specifications 604,395, [Group III], and 604,410, are carried out in the presence of a catalyst produced by forming an anhydrous mixture of hydrogen fluoride and boron trifluoride, the hydrogen fluoride constituting more than 50 mols. per cent of the total fluoride; an olefine, e.g. butylene, may also be present in the mixture, e.g. in an amount of 1/2 to 25 per cent of the weight of the hydrocarbon treated (see Group III).  The hydrocarbon reactions may be carried out at from -30 DEG  to 250 DEG  F. and at pressures from atmospheric up to 1000 lbs. per sq. inch.  In examples, natural gasoline is isomerized at 122 DEG  F. and 350 lbs. per sq. inch. Specifications 313,067, [Class 2 (iii)], 486,355, 559,067 and 563,280 also are referred to.
Patent GB-1076918-A (GB)
Title: Zinc oxide compositions
IPC: C09C1/04
Filed: 1966-05-25
Abstract: Pigment grade zinc oxide blended with 5%, 3%, 2% and 1% by weight lithium carbonate and calcined at 750 DEG  C. for 10 minutes (see Division C1), was incorporated into the following paint formulation ...Parts ...by weight .Zinc oxide pigment....275 .Titanium dioxide......180 .Magnesium silicate....346 .Raw linseed oil ......300 .Bodied linseed oil......115 .Thinner and drier......142ALSO:A modified zinc oxide pigment is produced by calcining zinc oxide with 0.5-2.0% lithium oxide.  Instead of lithium oxide, a lithium compound can be used which will decompose to the oxide on heating, e.g. lithium carbonate, lithium hydroxide.  The temperature of calcination is between 500-1000 DEG  C.  Sodium silicate may also be added to reduce particle growth of ZnO/Li2CO3 blends during calcination.
Patent GB-506331-A (GB)
Title: Improvements in colour photography
IPC: G03C7/22
Filed: 1937-08-25
Abstract: 506,331. Colour photography. GROVES, W. W. (I. U. Farbenindustric Akt.-Ges.) Aug. 25, 1937, No. 23315. [Class 98 (ii)] Coloured kinematograph films are produced by printing by imbibition from swollen gelatine reliefs, made by printing on bichromatcd gelatine layers from black and white positive component colour records produced by printing from a complementary coloured negative on multilayer material which has been exposed to the original and developed to colour. The colour formers may be present in the developer or in the sensitive material and in the latter case may be fast to diffusion. Suitable multi-layer films are described in Specifications 458,400, 465,823, 470,838, 483,000, 484,698, 489,093, 489,274, 491,958, and 491,959. Colour control copies may be produced by printing the negative on similar material and developing to a positive colour picture. A sound record may be printed on the final film by imbibition or in the form of a silver image or both may be superimposed. The sound record may also be printed by imbibition on the opposite side of the support using a dye solution containing a solvent for the material of the support.
Patent GB-240173-A (GB)
Title: Improved sliding valve
IPC: F16K3/18
Filed: 1925-09-18
Abstract: 240,173. Schõffer & Budenberg Ges. Sept. 22, 1924, [Convention date]. Sluice valves. - A sliding valve of the kind provided with two valve faces adapted to be eased from their seats before the valve member is lifted has roller bearings arranged between the guiding surfaces. The bearings comprise a series of rollers k rotatably mounted on shafts l themselves rotatably mounted in cases i. The cases, which have one side closed, are mounted on the valve members a or their holders so that axial displacement of the shafts is prevented. In the forms shown the valve members are wedged to their seats by a screw c actuated by an arm d. The bearing may be arranged on the guide member g.
Patent GB-741636-A (GB)
Title: An improved internal combustion engine with an auxiliary shaft for driving auxiliary units
IPC: F02B67/04
Filed: 1953-08-25
Abstract: 741,636. Casings; lubricating; arrange. ment of fuel supply pumps and ignition apparatus. PORSCHE, F. Aug. 25, 1953 [Oct. 15, 1952], No. 23407/53. Classes 7(2), 7(3) and 7(4) An engine-driven shaft 6 powers an ignition distributer 12 and a fuel pump 14 which, together with an ignition coil 16, are removably mounted on a standard 15 itself removably seated in a crankcase aperture 33. The standard 15 incorporates an oil-filler tube 29 and a chamber 30 from which bearings of units mounted on the standard 15 are lubricated. The crankshaft 2 drives the shaft 6 through timing gears 3, 4, a camshaft 5 and a worm and wheel 7. 8. The shaft 6 also powers a lubricant pump 11 which may alternatively be mounted on the standard 15.
Patent GB-1141774-A (GB)
Title: Photographic silver halide sensitive materials
Inventor: KITZE THEODORE JOSEPH
IPC: G03C1/12
Filed: 1966-05-26
Abstract: 1,141,774. Rapid process silver halide materials. EASTMAN KODAK CO. May 26, 1966 [May 28, 1965], No.23531/66. Heading G2C. A rapid process photographic material comprises a support bearing a layer of an unhardened photographic silver halide emulsion optically sensitized with a water-soluble carbocyanine dye containing at least one end of the methine chain a benzoxazole or benzimidazole nucleus and whcih contains either in the emulsion layer or in a layer adjacent thereto a silver halide developing agent or a compound which liberates a developing agent under alkaline conditions. The emulsion may be an internal image, direct positive or photo-developable emulsion and contains hydroquinone, p-amino phenol and 3- pyrazolidone developers. The photographic materials may contain carbocyclic 1, 3-dione stabilizers, hardener precursors, and waterinsoluble inert solids as described in Specification 1,141,773.
Patent GB-1072893-A (GB)
Title: Apparatus for shoring up mining galleries
IPC: E21D11/18
Filed: 1964-06-08
Abstract: 1,072,893. Mine gallery supports. W. KACIC. June 8, 1964 [July 18, 1963; March 12, 1964], No. 23593/64. Heading E1E. A mine roof support consists of props 2, which are interconnected by longitudinal beams 3 and transverse beams 1 to form a skeleton framework secured to the adjacent terrain by rock bolts 17. The beams 1 are adapted to receive cantilever extensions for supporting the roof of side galleries and are slidably mounted between the beams 3.
Patent GB-1378456-A (GB)
Title: Apparatus for ventilating cutter-heads of mineral mining machines
IPC: E21C35/23
Filed: 1972-05-19
Abstract: 1378456 Ventilation and dust suppression in mining machines COAL INDUSTRY (PATENTS) Ltd 4 May 1973 [19 May 1972] 23621/72 Heading E1F In a mineral mining machine of the type in which a rotary cutter head 29 is mounted on a hollow shaft 2 driven with respect to a machine body 1, a component 4 is fixed to the machine body and is provided with high pressure (e.g. 1000 p.s.i.) 11, and low pressure (e.g. 150 p.s.i.) 15, fluid inlets, a high pressure fluid outlet feeding via a tube 24, a nozzle 25 which delivers a ventilation air inducing jet along the shaft bore 3, and a low pressure fluid outlet in communication with a pipe 16 which feeds fluid to dust suppression nozzles (not shown) on the cutter head. A common fluid inlet may be employed. In the embodiment shown the pipe 16 and the tube 24 rotate with the cutter head within the component 4 and holes 23 in tube 16 communicate with the inlet 15. In a further embodiment (Figs. 4-6 not shown) an assembly projecting from the fixed component has both a central high pressure tube and nozzle and an outer coaxial conduit for low pressure fluid; the low pressure pipe being rotatable about this assembly in communication with the conduit.
Patent GB-799285-A (GB)
Title: Improvements in or relating to metal containers for liquids
IPC: B65D39/08
Filed: 1956-07-31
Abstract: 799,285. Barrels; taphole bushes. LLOYD, M. G. July 31, 1956 [Aug. 23, 1955], No. 23639/56. Classes 21 and 66. A metal container for liquids comprises an inner vessel 1 of a stainless steel or other corrosionresistant metal, and an outer protective casing 5 formed from two or more sections detachably secured together to fully encase the inner vessel 1, the outer casing 5 being in contact with an exerting pressure on the ends of the inner vessel 1 so as to restrain it against endwise movement. The outer casing 5 may be of mild steel and may be galvanised. The outer surface of the inner vessel may be similarly treated. As shown, the outer casing 5 comprises an upper and a lower section both marked 6, and an intermediate section 7, all three sections having out-turned annular flanges 9. Each pair of mating flanges 9 is sandwiched between channel-sectioned mild steel rings 10 the rings being united by a series of bolts 11 extending through one ring and screwing into anchor blocks 12 in the channel of the other ring. A sealing gasket or a sealing compound may be inserted between the mating flanges 9. The sections 6, 7, 6 are corrugated as shown to permit these sections to be more readily stressed into a state of tension when clamped together around the inner vessel 1. Shock absorbing and/or heat insulating material may be provided between the outer casing 5 and the inner vessel 1 where they are not in contact. The side wall portions of the sections 6 contact the side wall 1a of the vessel 1 near the ends of the latter, thereby holding the vessel 1 centrally within the casing 5. The end walls 6a of the sections 6 are inset to form end rims 6b on which the barrel stands when upright, and are so shaped as to provide annular seating surfaces 6c which bear on the end walls 1b of the vessel 1 thereby restraining endwise movement of the vessel 1. Taphole bushes. An internally threaded member 15, Fig. 3, is flush-welded in a hole 2 in the side of the vessel 1. A ring nut 16, screwed into the member 15, cause the casing 5 to be compressed between sealing washers 17 and 17a on the member 15. A metal bung plug 19, screwed into the nut 16, compresses a resilient sealing washer 20 against a shoulder 18 formed inside the nut 16. When a wooden shive is used in place of the screwed bung plug 19, the shock of hammering the shive into the bore will largely be absorbed by the section 7 of the casing 5. Fig. 4 illustrates the tap hole bush at the upper end of the barrel. The part 23 is welded to the inner vessel 1b and is surrounded by a ring nut 24 compressing a resilient sealing washer 25 against the outer casing 6a. A bush 26 is screwed into the part 23 the bush 26 being internally threaded for the reception of extraction gear of a usual kind but not shown. At other times the bush 26 is stopped by a cork extending into a smooth portion 23b of the bore in the part 23.
Patent GB-155913-A (GB)
Title: A spring motor for driving dynamo from windmill
IPC: F03G1/00
Filed: 1919-09-26
Abstract: 155,913. Osborn, S. T. Sept. 26, 1919. Spring power-storing mechanism.-A windmill turning intermittently winds the spring b within a drum a, which drives a dynamo l through spur and belt gearing. When the belt h is not sufficiently wound, it presses upon a flexible strip j carrying a pin or stop h which projects through an aperture in the drum and engages with a sliding plate k. When the spring has been sufficiently wound, the flexible strip j withdraws the stop h within the drum and the latter can then rotate, driving the dynamo when the sliding plate k is withdrawn by a bell-crank lever s operated by a solenoid u energized by the dynamo.
Patent GB-873916-A (GB)
Title: Improvements relating to hermetically sealed semi-conductor devices
Inventor: CROCKER NORMAN JOSEPH
IPC: H01L23/26
Filed: 1958-07-23
Abstract: 873,916. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 3, 1959 [July 23, 1958], No. 23724/58. Class 37. The envelope of a semiconductor device, e.g. a junction diode or transistor, is filled with a pasty composition comprising a powdered electrically insulating hygroscopic solid of good thermal conductivity and an insulating fluid, e.g. a silicone grease. Calcium aluminium silicate and sodium aluminium silicates are suitable hygroscopic materials. The composition may also include powdered silicon, alumina or magnesia to improve its heat conductivity. The components of the composition are dried separately before mixing to form a filling paste which is introduced into the envelope by a grease gun. In one embodiment (Fig. 2) a cap-shaped cover member 12 is filled with the paste and a base member 8, through which the leads to transistor 9 pass, is subsequently resistance welded to an annular ridge on the flange of the cover member.
Patent GB-1491839-A (GB)
Title: Ion beam apparatus
IPC: H05H7/00
Filed: 1976-06-09
Abstract: 1491839 Ion beam apparatus INTERNATIONAL BUSINESS MACHINES CORP 9 June 1976 [30 June 1975] 23763/76 Heading H1D A positive ion beam apparatus having deflection plates 21, 22 is provided with means, such as apertured electrodes 24, 25 to which potentials are applied, such as to prevent the entry of electrons into the deflection region while allowing the electron cloud surrounding the ion beam in the other regions to remain undisturbed. The electrodes 24, 25 can be replaced by reduced diameter portions of the vacuum enclosure of the apparatus, Fig. 2 (not shown).
Patent GB-604310-A (GB)
Title: Improvements in or relating to electrical terminal connector blocks
IPC: H04M1/02
Filed: 1945-09-14
Abstract: 604,310. Telephone instruments. STANDARD TELEPHONES & CABLES, Ltd. Sept. 14, 1945, No. 23771. Convention date, Sept. 23, 1944. [Class 40 (iv)] [Also in Group XXXVI] A telephone subset includes a terminal connector block comprising a body of moulded insulating material having a number of terminal elements and conductor strapping connecting them, the elements and strapping being formed as an integral die casting. The terminal block 2 is mounted on a base 1 and a plunger bearing block 3 may be formed integrally therewith. The housing 8 of the set also contains the usual condenser, ringer magnets, operating striker 4, bell 5 and induction coil 6. The plunger block 3 is formed with an open-sided compartment closed by a panel 40 and containing control spring contacts 25, 26, 27, 28 and 29. These are secured to upward projections from the die casting embedded in block 2 and shown in Fig. 6. Connections in this casting required for mechanical reasons in construction, but not desired electrically, are removed by drilling holes in the block. The bottom of the compartment for the contact springs is inclined to discharge any condensed moisture.
Patent GB-673617-A (GB)
Title: Improvements in or relating to the treatment of a chocolate mass
IPC: B01F7/00
Filed: 1950-09-29
Abstract: 673,617. Mixing chocolate. NAUTA, J. E. Sept. 29, 1950 [Oct. 14, 1949], No. 23852/50. Class 86 A method of treating a chocolate mass wherein a suitable quantity of the chocolate mass is treated at the required elevated temperature in a vessel with conical upstanding side walls and with a conveying- screw arranged in parallel relation to the conical walls, the screw being rotated about its own axis, so as to carry up the chocolate mass from the narrow lower end of the vessel to the wider upper end thereof and to drop it back again in the vessel at the said upper end, the conveying screw or the vessel being further driven in such a manner that the screw performs a relative revolving movement along the vessel walls about the central axis of the vessel. The apparatus described is substantially the same as the apparatus described in Specification 599,900 modified by the provision of a heating jacket 2 and a perforated annular body 17 for the introduction of air or other gas into the chocolate mass. Discharge of the chocolate mass through the outlet 19 is effected by the extruding action of the stirrer 16. It is stated that revolving motion of the screw 1 along the vessel wall may also be obtained by rotating the vessel 1 about the axis A-A and keeping the screw, apart from the rotatory movement about its own axis, at a standstill.
Patent GB-803702-A (GB)
Title: Improvements relating to evaporators for absorption refrigeration apparatus
IPC: F25B39/02
Filed: 1955-08-18
Abstract: 803,702. Refrigerating. WETTERWALD, W. A. Aug. 18, 1955 [Aug. 18, 1954]. No. 23873/55. Class 29 In a continuous cycle absorption system of the inert gas type, the inert gas is supplied to the evaporator 6 through a pipe 8 the inner end of which is closed and which has lateral apertures 11 admitting the gas to the evaporator. The liquid refrigerant is fed to a top tray 2 by a pipe 1 coaxial with the pipe 8 and the evaporator contains baffle plates 9, having staggered apertures. In modifications, pipes 1, 8 may be side by side instead of coaxial.
Patent GB-316892-A (GB)
Title: Improvements in or relating to disposition of power units and driving mechanism for automobile vehicles
IPC: B60K5/08
Filed: 1928-10-30
Abstract: 316,892. Twin Coach Co., (Assignees of Fageol, F. R.). April 19, 1928, [Convention date]. Divided on 309,984, [Class 79 (iii), Motor vehicles, Arrangement &c of parts of]. Independent driving on opposite sides; wheeldriving attachments. - The engines 16, 17 are mounted in housings which rise above the floor level mid-way between the axles 4, 4a, and at the sides. The rear wheels are driven independently through change speed gears 25, shafts 27, and worm gearing. A final electric drive may be used, in which case a dynamo takes the place of the gear 25 and a motor and clutch are placed at the end of the shaft 27. Gear casings 7, Fig. 7, are bolted to the axles 4 and contain shafts 8 verticallv above the axles. The road wheels 9 are mounted on the shafts 8 and contain brake drums 37. Worms 29 on the shafts 27 drive worm wheels 32 on the shafts 8.