baber/WOPTO huggingface dataset:
Patent GB-762583-A (GB)
Title: Improvements in or relating to the preparation of metallic halides
Inventor: EVANS ARTHUR WALLACE
IPC: C22B34/12
Filed: 1953-08-19
Abstract: A mixture of ilmenite and carbon is fluidized at 750-1000 DEG C preferably 850-1000 DEG C. in an insulated shaft furnace, sufficient chlorine being passed through a perforated base therein to chlorinate the metallic constituents at a rate proportional to their relative proportions in the ore and produce titanium tetrachloride and ferric chloride.  The fluidized bed and/or the gaseous products of the chlorination may be cooled by a suitable liquid or solid cooling agent or a suspension of the latter in the former, specifically mentioned agents being ferric chloride and titanium tetrachloride. In the example, titanium tetrachloride was used to control the bed temperature at 970 DEG C. or below; ferric chloride was admitted to a first condenser to cool the gases to 300 DEG C.; an atomized spray of titanium tetrachloride cooled residual gases to 130 DEG C. and precipitated ferric chloride; and a series of tube condensers cooled the remaining gases to below -10 DEG C. to remove titanium tetrachloride; chlorine comprised less than 1 per cent of the original gaseous mixture.  Suitable ores are low magnesium and calcium ilmenite sands containing, e.g. 60 per cent Ti O2, 25 per cent Fe and 1.2 per cent by weight alkali and alkaline earth oxides and having particle sizes from 20-1000m  preferably 100-300m .  About 10-30 per cent of charcoal or coke is added, having a particle size of 20-2000m  preferably 50-600m .  The process is preferably initiated with a bed of rutile and carbon in a furnace preheated by means of hot gases led or consumed therein, by the use of oxygen to react with said carbon, or preferably by playing a flame on to the mass fluidized by air.  When the temperature reaches 8-900 DEG C., chlorine is admitted to continue the fluidization, and ilmenite carbon are fed in from the top in suitable proportions, there being generally used an amount of chlorine varying by 10 per cent, preferably 5 per cent on either side of the stoichiometric proportion.  In the example, a furnace was used having a perforated base as described in Specification 724,193, in which the perforations are fitted with controlling orifices on the underside and gas-permeable discs are fitted to prevent the return of dust etc.
Patent GB-767755-A (GB)
Title: Adsorption device
Inventor: CAMERON ERIC CAVERHILL
IPC: B01D53/04
Filed: 1954-08-06
Abstract: <PICT:0767755/III/1> An adsorption filter device for removing undesirable vapours and gases from gases comprises perforate tubular member 17, 18 of square cross-section spaced apart in a container 6 at a distance equal to the distance across the tubular members; the tubular members have one end open and one end closed, the open ends of adjacent members facing in opposite directions, and the space between the members contains a granular adsorbent material.  The gas to be treated is drawn through the apparatus by means of fan 8, entering through the open ends of members 18 and passing through the adsorbent material to outlet members 17.  Channelling is prevented by applying pressure to the adsorbent material by means of plate 24 and springs 25.  A second container 7 may be arranged as shown.
Patent GB-794746-A (GB)
Title: Electromagnetic prospecting apparatus
IPC: G01V3/10
Filed: 1955-08-09
Abstract: 794,746. Geophysical surveying. CANADIAN AIRBORNE GEOPHYSICS, Ltd. Aug. 9, 1955 [Sept. 13, 1954], No. 22966/55. Class 37. In electromagnetic prospecting apparatus of the kind in which an alternating magnetic field is set up by a transmitter coil, a single transmitter coil L is arranged to radiate two signals of different frequencies f1, f2 (e.g. 400 and 2000 c/s.), being tuned to frequency f1 by inductor L1 and capacitor C1 (C2 being negligibly small) and to frequency f2 by L1 and C2 in parallel (C1 at this frequency having negligible impedance). L3, C3 rejects f but is of low impedance at f2.
Patent GB-257745-A (GB)
Title: Improvements in ink-bottle stoppers, for filling reservoir pens not provided with their own self-filling mechanism
IPC: B43L25/00
Filed: 1925-09-15
Abstract: 257,745. Sweetser, G. Sept. 15, 1925. Fountain-pen, fillers. - An ink-bottle stopper for use in filling fountain pens consists of a hollow body, adapted to receive the pen and to reciprocate in the neck of the bottle, a stuffing-box or collapsable ball being provided to render the connection airtight. As shown, the hollow stopper a is provided with a flexible extension e reaching to the bottom of the bottle, and a flange b, between which and the neck of the bottle is arranged a collapsable ball f. In use, the pen is inserted in the stopper against a rigid shoulder g and the stopper is depressed, the compressed air escaping into the bottle through the loose connection between the lower opening in the ball and the plunger, and so forcing ink into the pen. A cork ring d to prevent accidental withdrawal of the stopper is provided.
Patent GB-1044248-A (GB)
Title: Pneumatic door operator
Inventor: DIMMITT ROBERT ERNEST
IPC: E05F15/56
Filed: 1965-05-31
Abstract: 1,044,248. Door operating appliances. DOR-KLEST Inc. May 31, 1965, No. 23047/65. Heading E2M. A sliding door is attached to two parallel pistons 32, 33 working in a power air cylinder 30 and a check air cylinder 31 respectively, the reservoir 37 in the pneumatic circuit having a capacity less than that of the power cylinder and the flow rate to the reservoir through line 40 and needle valve 46 being substantially less than that from the reservoir to the cylinder through line 38, so that the opening of the door is initially fast, but finally slow to avoid rebound of the door from its stop. When switch A, e.g. a carpet switch is closed, solenoid valve 39 opens and solenoid valve 50 closes and connects the left hand end of the power cylinder to atmosphere, and thus air enters the right hand end of the cylinder to open the door. When switch A opens, valves 39, 50 change r¶les to close the door. Air pressure is maintained by a motor driven pump 42 from an air supply 41. An isolator valve 44 and a strainer 43 are provided. Valves 45 and 48 are pressure regulating valves which are adjusted for the reservoir to be totally replenished during the closing of the door.
Patent GB-480537-A (GB)
Title: Improvements in or relating to variable condensers
IPC: H01G5/38
Filed: 1936-08-22
Abstract: 480,537. Variable condensers. OBERLANDER. H. M. Aug. 22, 1936, No. 23138. [Class 37] The insulating strip 8 separating the casing 1 from the stator unit 5 is secured to one or the other by direct connection, for example by soldering, die-casting, injection of metal or cementing. The insulating strip may be metallized as by spraying to facilitate the joint. In the example, Fig. 1, a lug 9, extending from the stator tie plate 6, rests on and is secured directly to the insulating strip 8. In a modification, Fig. 5, the insulating strip 8 has recesses along its top edge, receiving a number of lugs 9, and at the side receiving projections 10 bent out of the casing wall 1, all the joints being secured in a strain-free manner by direct soldering &c. A trimmer condenser 13 may be mounted on the strips 8.
Patent GB-1118093-A (GB)
Title: Process for reducing corrosion
IPC: B05D7/14
Filed: 1966-05-24
Abstract: A process of protecting a ferrous article comprises treating the article with a solution to cause the formation of a phosphate coating on the surface thereof, the resulting phosphated surface being subsequently coated with a fused polyester resin.  After the formation of the phosphate coating, the article is dried and heated, and the heated article is immersed in the dense phase of a fluidised bed of polyester resin particles whilst the article is at a temperature high enough to cause fusion of the contacting resin particles whilst being below the decomposition temperature thereof, the heated article being kept immersed until a layer of resin of desired thickness is formed on its surface, the coating of resin particles being allowed to fuse to form a continuous resinous coating before the coated article is cooled.  The resin may also be applied by the electrostatic powder coating process, the cyclone process or the flame spraying process.  The phosphate coating may be zinc phosphate in amorphous or microcrystalline form.  The article having the phosphate and fused resin coating may be made electronegative with the respective surroundings and may be caused to form an electrode of an electrolytic cell or may be connected to an external source of electromotive force.  The article may be of iron, iron alloy or steel, and may take the form of a pipe, sheet, rod, or casting.  The polyester may be a fusion blend of ethylene terephthalate-neopentyl terephthalate copolyester and a copolyester of ethylene glycol, neopentyl glycol, terephthalic acid and sebacic acid, polyesters and copolyesters of terephthalic acid, bibenzoic acid, the naphthalene dicarboxylic acids with glycols such as polymethylene glycols.  The surface of the metal may be cleaned by grit blasting, vapour degreasing, alkali cleaning or pickling, or a combination of these methods.  A primer coat of, for example, rubber, plastics, epoxy resin, may be applied after the phosphate treatment and prior to the application of the polyester resin.
Patent GB-950299-A (GB)
Title: Improvements in or relating to polyepoxide resin compositions and their use
Inventor: PORDES OTTO
IPC: C08G59/62
Filed: 1961-06-27
Abstract: A composition useful for consolidating fibres or particles (e.g. of sand or soil) comprises (a) a polyepoxide, (b) a phenol, (c) a low viscosity aromatic petroleum distillate or a low viscosity aromatic extract of a petroleum distillate, such that the composition has a maximum viscosity of about 300 centipoises at ambient temperature, and (d) an adduct of a polyepoxide curing agent and a carboxylic acid. Long lists of suitable compounds are given of which the following are preferred:-(a) polyepoxides from an epihalohydrin and bisphenol A or glycerol; (b) cresylic acids and alkyl substituted phenols; (c) furfural extract of heavy catalytically cracked cycle oil, kerosine extract containing about 74% by weight of aromatic compounds, low viscosity aromatic extract of a lubricating oil,, and light catalytically cracked cycle oil; and (d) adducts derived from N-2-aminoethyl piperazine or diethylene triamine, and colophony or naphthenic acids.  Uses:  Coating; consolidating paper or textile fibres; and consolidating sand or soil particles, when the composition may be mixed or injected into the wet or dry sand or soil, either under gravity or under pressure.  Specifications 639,551, 860,287 and 950,298 are referred to.
Patent GB-599283-A (GB)
Title: Suspension shaft for rotary crusher
IPC: B02C2/06
Filed: 1945-09-10
Abstract: 599,283. Crushing-machines. COMPAGNIE DES ENTREPRISES INDUSTRIELLES. Sept. 10, 1945, No. 23287. Convention date, Feb. 9, 1945. [Class 59] In a crusher of the kind wherein the crushing- head is secured on a substantially vertical shaft which is suspended from a top bearing and gyrated by imparting an eccentric motion to its lower bearing, the crushing being effected between the head and an annular chamber, the suspension bearing comprises a collar 2, on the shaft 1, having opposed conical surfaces 3, 4, a bearing ring 7 and a bush 10 with a spherical outer surface which engages a correspondingly  shaped recess in the cross-head 6. With this arrangement, the bush can rock in the recess and align itself with the lower bearing of the shaft. The bush 10 may be provided with a renewable wear ring 5a. In a modification, the top of the spherical surface of the bush 10 is engaged by a top ring bolted to the cross-head 6.
Patent GB-852533-A (GB)
Title: Improvements relating to magnetic recording and reproducing heads
IPC: G11B5/187
Filed: 1957-07-23
Abstract: 852,533. Magnetic recording heads. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 23, 1957 [July 26, 1956], No. 23291/57. Class 40 (2).  A method of manufacturing magnetic recording and reproducing heads is characterized by a procedure to enable the height of the gap to be accurately determined. Fig. 2 shows two portions of the ferromagnetic circuit, the surface 9 of part 7 being longer in the direction of the gap height (h<SP>1</SP>) than the corresponding surface 10 of part 8 and in the assembled position extending beyond the upper and lower edges of surface 10. A layer of glass 4 between the surfaces, which is a little thicker than the required gap dimension, is heated to softening-point and pressure is applied to parts 7 and 8 to reduce the gap to the desired figure. After cooling, the dimension h<SP>1</SP> is achieved by machining away the shaded portions 12 and 13. Since the lower edge of surface 10 always lies within the surface 9 then the height h<SP>1</SP> of the part 8 will also be the gap height. Shaded parts 15a and 15b are subsequently removed to provide a seating for a closing yoke. In a modification (Fig. 3) the magnetic circuit comprises only two parts, one U-shaped, 17, and the other a flat bar, 16, forming at one of its junctions a glass-filled magnetic gap 4. In a further modification (Fig. 4) the magnetic circuit is constructed with two glass-filled magnetic gaps 31, 32. The assembly is divided along the line 41-41 into two parts each containing one magnetic gap, each circuit being completed by a closing yoke. By slitting along the lines 42, 43 the assembled block may be divided into a number of narrower heads.
Patent GB-254563-A (GB)
Title: Improvements in and relating to wire cooking utensils
IPC: A47J36/22
Filed: 1925-09-19
Abstract: 254,563. Baker, Ltd., G., and Baker, F. Sept. 19, 1925. Wirework. - A cooking-basket or like wire utensil is formed by pressing or stamping a blank of wire mesh in suitable dies, the drawing action of which causes the wire to assume and retain the desired outline. A ring l of heavy gauge wire is secured around the upper edge by closing the ends of the wire mesh therearound. Dies a, b, Fig. 2, are first employed to shape the basket &c., which is then transferred to a further pair of dies in which an annular ridge is shaped around the edge. The basket &c. is then turned over and the superfluous material is removed in another pair of dies while the final closing of the edge around the wire l occupies one or two further operations. The ring l may be formed integrally with the handle as shown in Fig. 1.
Patent GB-877254-A (GB)
Title: Improvements in or relating to preformed thermal insulating lagging
IPC: F16L59/02
Filed: 1959-07-07
Abstract: 877,254. Thermal insulating lagging. IMPERIAL CHEMICAL INDUSTRIES Ltd., ABBOTSON, W., JAMESON, D. T., and ROBSON, J. P. July 4, 1960 [July 8, 1959], No. 23444/59. Class 99(2). Thermal insulating lagging, composed of foamed material for a pipe G comprises, two, or more, cylindrically curved sections A, B of foamed material, the sections being provided with a male element C on one longitudinal edge, and a corresponding female element F on the other longitudinal edge, whereby the sections interlock to form a complete cylinder. The foamed material is preferably rigid polyurethane containing a high proportion of closed air cells. The sections may be wrapped with an impervious sheet material.
Patent GB-1139250-A (GB)
Title: Capacitor, particularly for fluorescent ballasts
Inventor: GRAHAME FREDERICK WALPOLE
IPC: H01G4/32
Filed: 1967-05-19
Abstract: 1,139,250. Capacitors. GENERAL ELECTRIC CO. 19 May, 1967 [14 June, 1966], No. 23496/67. Heading H1M. A capacitor unit for a fluorescent ballast having three capacitor sections C 1 , C 2  and C 3  for power, starting and radio interference suppression wound in a single roll is made by winding the arrangement shown wherein the three sections have one common electrode 38, lead D to the common electrode together with leads A and B is connected to insulated terminals in the capacitor housing lid, and lead E is connected to the housing. Electrode foil 38 and dielectric, e.g. paper, strips 36, 40, 42 and 48 extend the full length of the unrolled assembly; electrode foil 44, forming with foil 38 capacitor section C 1 , extends over a major proportion of its length, and electrode foil 46, forming with foil 38 capacitor section C 2  extends over a minor proportion. Leads A, B, D and E are attached to strips 68, 72, 60 and 66 of conductive material of the same width as the electrode foils and are inserted during the winding process together with associated dielectric strips 70, 74, 62 and 64, strip 64 being slightly longer than foil 66 and the same length as 62 or 60. Strips 70, 74, 62 and 64 give added protection during testing. Foil 66 itself is the second electrode of capacitor section C3 and tap 58 incorporating it is located adjacent tap 52 on electrode 38 to minimize inductance. Tap 54 on electrode 44 is located opposite tap 58 and since strips 68, 70 are slightly more than one turn of the roll longer than strips 60, 62 and 64, tap 58 will remain opposite tap 54 when the roll is formed, and will be separated from it by strips 36, 48 and 70. In an alternative arrangement, foil 72 itself may be the other electrode of capacitor section C 2  and tap 56 comprising it may be located between taps 52 and 54 and between paper strips 40 and 42. Lead E may be brought out of the opposite side of the rolled unit from the other leads, bent back along the outside of the roll and pressed against the casing because of the differing eccentricities of the roll and casing. Alternatively lead E may be soldered to the inside of the cover or casing, or welded or soldered into the seam between them.
Patent GB-406692-A (GB)
Title: Improvements in and relating to hot wire igniters for internal combustion engines
IPC: F23Q7/00
Filed: 1932-08-22
Abstract: 406,692. Incandescent electric igniters. RUPRECHT, A., 35, Wernerstrasse, Ludwigsburg, Wurtemberg, Germany. Aug. 22, 1932, No. 23512. [Class 7 (iv).] The electrically-heated filaments g of the igniters for use in starting Diesel engines are connected in series. One end of each filament is connected to a central conductor d and the other either to an insulated tube c around the conductor d, or to an independently mounted insulated conductor.
Patent GB-721636-A (GB)
Title: Improvements relating to shock-absorbers for vehicles
IPC: F16F3/087
Filed: 1952-09-19
Abstract: 721,636. Rubber spring units. SCANZI, G. V. Sept. 19, 1952 [Sept. 21, 1951], No. 23581/52. Class 108 (3). A shock-absorber for vehicles comprises kidney-shaped rubber blocks A, disposed under pressure between coaxial casing members B, C. The blocks A are movable with a rolling action to permit relative rotational movement of the members B, C. The member C carries a threaded securing stud.
Patent GB-772003-A (GB)
Title: Improvements in or relating to electron discharge devices of the travelling wave type
IPC: H01J25/40
Filed: 1954-03-23
Abstract: 772,003. Backward wave tubes. WESTERN ELECTRICAL CO., Inc. March 23, 1954 [March 30, 1953 ; June 26, 1953], No. 23595/56. Divided out of 772,001. Class 39(1). In a backward wave oscillator or amplifier the delay line comprises a bifilar helix carrying a backward wave spatial harmonic component which travels parallel to and interacts with the electron beam, output being extracted at the gun end of the bifilar helix. The cathode is a hollow sphere coated internally with emissive material 58 as described in Specification 767,446, the dimensions of the opening in the sphere being chosen to give a cylindrical beam whose current density increases sharply from the axis. The fringing fields between the two helices provide the desired net radial inward field component for electrostatic focusing if the two helices are at different D.C. potentials. Coupling may be achieved by a second bifilar helix outside the tube wound in opposite sense to the internal bifilar helix but coaxial therewith. Instead of a hollow cathode, a beam may be converged from a conventional cathode by electrodes 77A ... E, Fig. 5, whose potentials alternately increase and decrease and whose mean potential gradually increases away from the gun. Periodic electrostatic focusing may be achieved if the bifilar helix is surrounded by a further cylindrical electrode having a D.C. potential lying between the D.C. potentials of the two helices, Figs. 1, 2 (not shown) as described and claimed in the parent Specification. Magnetic focusing may, however, be used if desired. Specifications 714,832, 734,479 and 772,000 also are referred to.
Patent GB-1004876-A (GB)
Title: Method and apparatus for cleaning an aqueous suspension of pulp or paper-making fibres
Inventor: WILLIAMS WALTER PHILIP
IPC: B04C5/08
Filed: 1963-06-13
Abstract: 1,004,876. Centrifugal separators. BAUER BROS. CO. June 13, 1963, No. 23610/63. Heading B2P. A hydrocyclone for removing impurities from paper pulp suspension comprises a separating chamber having at least a portion of conical form with an included cone angle of 5-18 degrees, a tangential inlet 8 at the larger end of the chamber having a cross-sectional area greater than 0.195 sq. inch, a clean stock axial outlet 9 of not less than 0.78 sq. inch in cross-sectional area at the larger end and an axial rejected stock outlet 6 at the apex of the chamber. A number of hydrocyclones may be arranged in parallel to receive uncleaned stock from a coarse screening system. In operation, the suspension is whirled in the separating chamber to produce a vortex of conical form having a first zone of radially increasing angular velocities and a second zone wherein the angular velocity. is substantially constant. The first and second zones meet at a radial distance from the central axis at which the centrifugal force and angular velocity gradient (as hereinafter calculated) are at a maximum. The feed pressure is chosen (e.g. 40 p.s.i.) to produce, at this radial distance, a ratio of centrifugal force to angular velocity gradient of 16Î10<SP>-2</SP> or greater and an angular velocity gradient of less than 29,000 sec<SP>-1</SP> ft<SP>-1</SP>. The centrifugal force is calculated from the equation where F=centrifugal force in number of gravities, V= tangential velocity in feet per second, R=radius in feet, g=acceleration due  to gravity=32.2 feet per sec.<SP>2</SP> and the angular velocity gradient S is defined as where #=angular velocity, R=radius in feet. Performance figures are given.
Patent GB-382010-A (GB)
Title: Improvements in or relating to auxiliary lighting systems, such as spot-lamps, fog-lamps and the like, for motor road vehicles
IPC: B60Q1/24
Filed: 1931-08-22
Abstract: 382,010. Plug couplings. EVERSURE ACCESSORIES, Ltd. and VENNER, D. J. V., Kingston Road, Small Heath, Birmingham. Aug. 22, 1931, No. 23650. [Class 38 (i).] An electric lamp 1 for vehicles is detachably and adjustably connected to a mounting plate 5, a plug 13 on the lamp leads 2 being detachably connected with a terminal socket 10 on the plate. The socket 10 is threaded to receive a locking ring 10a or a closure cap. The plate is fixed on the vehicle by wood screws or by means of a second plate and bolts. A number of plates may be provided on different parts of the vehicle so that a single lamp may be mounted in suitable positions for different purposes, and the electric leads from all the terminal sockets may be connected through a common switch to the supply source.