baber/WOPTO huggingface dataset:
Patent GB-680304-A (GB)
Title: Improvements in and relating to electrical circuit devices adapted to be secured to a panel or other supporting structure
IPC: H01F21/06
Filed: 1950-05-04
Abstract: 680,304. Inductors. PHILCO CORPORATION. May 4, 1950 [June 28, 1949], No. 11035/50. Class 38 (ii). An electrical circuit device 15 comprising a tubular element is secured to an apertured supporting panel 10 by a U-shaped spring 25 and through engagement of the side of the element and a slot 23 in an end thereof with respective walls of the panel aperture 11. As shown with reference to a tunable inductor, the element comprises a coil former carrying a winding 16, and a plug type core 20 of comminuted iron or non-magnetic material, e.g. bran, is screwed into the former, a portion 26 of the spring 25 passing through a former slot 27 to provide reaction for a screw-threaded part 21 of the core. An undercut 29 prevents inadvertent core removal.
Patent GB-183220-A (GB)
Title: An improved high frequency electrical apparatus
IPC: H03B11/06
Filed: 1921-04-15
Abstract: 183,220. Bower, J. B. April 15, 1921. Transformers.-A portable high-frequency electrical apparatus comprises an inductance or " kicking" c o i l e, contactbreaker f, condenser i, and high-frequency transformer k arranged in compartments formed in a box a by partitions b, b<1>, d secured to an inner removable cover c carrying the terminals, hand switch j, contactbreaker adjuster f<2>, and other adjuncts of the apparatus. The apparatus is connected as shown in Fig. 4. high-frequency currents being produced in the primary winding of the transformers k when the circuit is broken at the contact-breaker f. The " kicking " coil may be provided with tappings connected to plug sockets g to enable the apparatus to be used with different supply voltages. One end of the secondary winding of the transformer is connected by a flexible cable m to a brass socket mounted in a handle adapted to receive the various electrodes required in using the high-irequency currents. The " kicking " coil may be provided with a secondary winding connected to terminals h for supplying a low-voltage current for heating a cautery or for other purposes. A quenched spark gap may be placed in parallel with the contact-breaker.
Patent GB-667118-A (GB)
Title: Process for removing paraffin wax from mineral oils
IPC: C10G73/06
Filed: 1949-04-26
Abstract: Paraffin wax is extracted from mineral oils by mixing the oils with a medium containing ethylidene chloride, cooling the mixture, and separating the precipitated paraffin wax by filtration or centrifuging.  The oil may be mixed with 2-5 times the amount by volume of ethylidene chloride.  Mixtures of ethylidene chloride with other solvents, such as ethylene chloride, methanol and acetone, may also be used; mixtures of ethylidene chloride and ethylene chloride in the proportion of 1 : 1 to 1 : 4 are particularly mentioned. Mineral oils which may be treated may be distillates, or residues freed from asphalt.  The Specification as open to inspection under Sect. 91 mentions the use of a mixture of ethylidene chloride and butanone, and states also that when a mixture of solvents is used its specific gravity should not be below 1.19 when centrifugal separation of the wax is to be employed.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1383054-A (GB)
Title: Isomerization of tetrahydrophthalic anhydrides
IPC: C07D307/89
Filed: 1972-03-09
Abstract: 1383054 Mixtures of tetrahydrophthalic anhydride isomers KOPPERS CO Inc 9 Mareh 1972 [10 March 1971] 11151/72 Heading C2C A mixture of tetrahydrophthalic anhydride or tetrahydrophthalic acid ester isomers, which is liquid at room temperatures, is made by catalytically isomerizing the #<SP>4</SP> isomer in the presence of a catalytic amount of Pd and an anhydride of a polycarboxylic acid, other than the said #<SP>4</SP>-isomer or maleic anhydride, which is miscible with the said #<SP>4</SP>-isomer, in the liquid state, has a melting point below 140‹ C. and is a curing agent for epoxy resins.
Patent GB-768565-A (GB)
Title: An improved method of and apparatus for treating paper to which a coating of thermo-plastic material has been applied
IPC: B32B29/00
Filed: 1954-04-15
Abstract: 768,565. Coating webs. CHARLESTOWN PAPER CONVERTING CO., Ltd. (Kalamazoo Vegetable Parchment Co.). April 15, 1955 [April 15, 1954], No. 11176/54. Class 140. A hard finish to a travelling web of paper to which a coating of molten thermoplastic wax has been applied, is established by causing a stream or streams of cooling liquid to impinge on one or both surfaces of the web prior to the entry of the web into a cooling tank. As shown, a paper web 1 from the waxing apparatus passes over a cylinder 2, which may be steam-heated, and between rods 3, which may be of glass, and then into a cooling tank 5. A waterfall device 8 provides a sheet of water extending transversely across the web, which contacts the web tangentially and in its direction of travel. The temperature of the water may be from 32‹ to 46‹ F., and the speed of the water when impinging on the web should be less than that of the web, preferably about one-third thereof. A similar device 9 may be provided on the other side of the web.
Patent GB-1405849-A (GB)
Title: Gripping device for doffing full bobbins and reloading empty tubes in a spinning frame
IPC: B65H67/00
Filed: 1973-03-08
Abstract: 1405849 Grippers NUOVA SAN GIORGIO SpA 8 March 1973 [16 March 1972] 11259/73 Heading DID [Also in Division B8] In a textile spinning frame, a gripper 2 for donning bobbin tubes, and a gripper 1 for doffing fall bobbins, comprise integral, rigid parts 6, 11 enclosing resiliently deformable gripping sleeves 8, 20. Part 11 encloses rigid sleeve 16 having annular groove 17. The sleeves 8, 20 are secured by snapped-on collars 9, 21. To grip a tube, fluid is passed from supporting duct 4 via passage 13, groove 17 and passage 15 to contract sleeve 8. To grip a bobbin, fluid is passed from supporting duct 5 via passage 12 to contract sleeve 20. The fluid may be air. Plastic rigid parts and rubber resilient sleeves may be used.
Patent GB-1354073-A (GB)
Title: Process and apparatus for the oxygenative cracking of hydrocarbons
IPC: C01B3/36
Filed: 1972-03-10
Abstract: 1354073 Manufacture of gases containing carbon monoxide and hydrogen METALLGESELLSCHAFT AG 10 March 1972 [8 April 1971] 11349/72 Heading C5E Air, oxygen or a mixture of air and oxygen is introduced into the reaction chamber 9 through the pipe 12, a hydrocarbon feed, e.g. a heavy fuel oil or a natural gas, is introduced through a pipe 10 and steam is introduced either through an annular pipe 11 or in admixture with the hydrocarbon in pipe 10. Carbon dioxide or water can be introduced through additional pipes parallel to the pipe 11 or through the pipe 11 if a mixture of steam and hydrocarbon is passed through the pipe 10. The pipes 10 and 11 can enter the reaction chamber radially and can terminate in a two-fluid vertical nozzle. Hydrogen-containing cracked gas is entrained by the hydrocarbon and steam jets to form an atmosphere near the hydrocarbon inlet which is rich in hydrogen and steam. The reaction chamber 9 is maintained at 10-300 kg./cm.<SP>2</SP> and the temperature is at least 400‹ C. but not generally above 1300-1500‹ C. The reaction products pass through the annular chamber 6 between the refractor lining 4 of the reactor and the tubular internal fixture 5, which can contain a catalyst 15 and/or an indirect water cooler 16, and leave the reactor through the pipes 13. A gas having a hydrogen : carbon monoxide volume ratio of 1À03 and suitable for the oxo synthesis is made by gasifying a heavy fuel oil, passing the produced gas over a catalyst of 30 wt. per cent Cr 2 O 3  on magnesia and then scrubbing to remove carbon dioxide and sulphur compounds. A gas suitable for the synthesis of methanol and having a volume ratio of hydrogen to carbon monoxide of 2 is made from natural gas. A heavy fuel oil is used to make a gas, containing equal volumes of carbon monoxide and hydrogen, which is subjected to a carbon monoxide shift conversion with added steam and an iron oxide-chromium oxide catalyst; the hydrogen gas produced is scrubbed to remove carbon dioxide and hydrogen sulphide and then passed to an ammonia synthesis reaction.
Patent GB-163203-A (GB)
Title: Improvements relating to the lubrication of compressed air selfstarting and braking apparatus for internal combustion engines
IPC: F02N7/08
Filed: 1920-04-24
Abstract: 163,203. Edington, H. April 24, 1910. Force-feed lubricating for compressed-air selfstarting and braking apparatus for internalcombustion engines of the type described in Specification 24006/14, [Class 7 (v), Internalcombustion engines, Starting &c.]. A lubricantreservoir 1 is arranged below the compressormotor. A passage 5 establishes communication between the reservoir and the air delivery-port 6, and a pipe 7 connects the lower part of the reservoir with an injection port 8 situated between the delivery port 6 and the inlet port 9. A check-valve 12 is inserted in the pipe 7 to prevent leakage of air by way of the port 8, when compressed air enters the port 9. Alternatively, a check-valve may be inserted in the passage 5. When the apparatus acts as a compressor or is running idle, lubricant is forced past the valve 12 into the cylinder 2 by air pressure from the delivery port 6. Surplus lubricant drains to the reservoir through the passage 5. No lubricant is supplied to the cylinder when the apparatus functions as a self-starter. Plugs 16, 18 are provided for filling and draining the reservoir. The invention may be applied to compressor-motors having more than three blades.
Patent GB-1485744-A (GB)
Title: Data storage apparatus
IPC: G11B23/03
Filed: 1976-03-22
Abstract: 1485744 Flexible-disc record assemblies INTERNATIONAL BUSINESS MACHINES CORP 22 March 1976 [2 April 1975] 11385/76 Addition to 1467697 Heading G5R  In a rotary stack of flexible record discs 10 mounted on a hollow spindle which has radiallyextending passageways 43 allowing air supplied to the interior 30 of the spindle to pass outwards between the discs 10, the spindle consists of a stack of identical coaxial spacer washers 35, 36. The washers may have radial ridges 44 or grooves or may be made of cross-woven mesh material, Fig. 4 (not shown).
Patent GB-1535479-A (GB)
Title: Vacuum filter with indexable filter web
IPC: B01D29/09
Filed: 1977-03-17
Abstract: 1535479 Vacuum band filter BARNES DRILL CO 17 March 1977 [25 March 1976] 11386/77 Heading B1D A vacuum filter apparatus comprising a tank 11 containing a vacuum box 15 with a perforated lower face 20 disposed so as to be beneath the liquid level in the tank; a supply roll 14 of filter web, e.g. paper or fabric, located out of the liquid to be trained beneath the vacuum box lower face by means of an endless, flexible conveyor 35 having portions positioned laterally beyond the box side walls and which guides the web into and out of the liquid on either side of box 15; and means for creating a vacuum in the box to such liquid through the web into the box, further includes a pair of flexible endless bands 65 having portions located laterally beyond opposite side walls of box 15 above the conveyer 35 to trap the side margins of the web against the conveyor. The conveyor may itself by supported beneath the box 15 by rods 45 attached to pivotally mounted plates 46 and which may be moved away from the conveyor by actuation of cylinder 56 to allow indexing of the conveyor, web and bands to introduce a new section of web beneath the box. The vacuum box may be connected to a reversible pump to allow creation of a positive pressure in the box for backflushing of the web.
Patent GB-376832-A (GB)
Title: Improvements in or relating to artificial yarns, filaments and similar products
IPC: D01F2/28
Filed: 1931-04-17
Abstract: An organic derivative of cellulose, hydrogen peroxide, and a suitable solvent are mixed to form a spinning solution which is extruded into a setting medium in the usual manner.  The cellulose derivative may be a cellulose ester or ether, and the setting medium an evaporative atmosphere as in dry-spinning, or a coagulating bath as in wet-spinning.  The filaments, yarns, ribbons, bristles or the like produced are substantially free from colour.  The quantity of hydrogen peroxide used may be from 0,05 to 1,0 per cent of the weight of the cellulose derivative present.  An example is given in which cellulose acetate dissolved in aqueous acetone containing 0,1 per cent of hydrogen peroxide is spun according to known methods.
Patent GB-233877-A (GB)
Title: Improvements in alternating-current electricity meters
IPC: G01R11/36
Filed: 1924-05-09
Abstract: 233,877. Wall, G., and Metropolitan- Vickers Electrical Co., Ltd. May 9, 1924. Induction motor mevers.- The potential magnet is constructed of laminations of the shape shown in Fig. 6, the side limbs 10 having salient poles 11 which project towards the meter disc with small air gaps as shown, the ends being substantially in the same plane as the end of the central limb 9. Encircling the salient poles 11 are closed conducting loops 12, 13, Fig. 3, for friction compensation. The loop 12 is carried by a plate 16 having a slot through which pass screws 17 by which it is adjustably secured to a non-magnetic bridge 15. A vernier scale 18 on the plate 16 co-operates with a scale 19 on the bridge 15 to facilitate adjustment of the loop 12 lengthwise of the pole-piece 11. The end of the bar 16 may ben bent at right-angles and provided with a screw bearing against the top of the bridge 15 to facilitate adjustment. The loop 13 may be similarly supported or, as shown, it may be carried by a plate 20 secured by a screw 21, adjustment not being provided for. A quadrature-adjusting loop 14 encircling the central limb 9 is carried on a plate 22 and adjusted similarly to the loop 12. The brake magnet 7, Fig. 9, is pivotally mounted by means of a screw 25 on a fixed plate 26. Attached to the magnet 7 is a plate 27 having a vernier scale 30 co-operating with a scale 31 on the fixed plate 26. The plate 27 is slotted and fixed by a clamping-screw 24.
Patent GB-663885-A (GB)
Title: Electrostatic spray coating method
IPC: B05D1/04
Filed: 1949-04-30
Abstract: 663,885. Electrostatic precipitation. DUNLOP RUBBER CO., Ltd., BULGIN, D., and OWEN, G. E. April 14, 1950 [April 30, 1949], No. 11570/49.. Class 39 (i). A method of applying a coating composition to an article having a surface made of an insulating material comprises forming on the surface of the article a film of material which renders the surface conductive and exposing the film coated surface to a mist of the coating composition in an electrostatic field. Preferably the material of the film is compatible with the coating composition and it need not render the surface resistance of the article negligible, but should be such that the drop in voltage between the electrode system generating the field and the surface of the articles is large enough to cause the droplets of mist to be deposited. The film may be obtained by spraying on to the articles an hydroxilated organic liquid, e.g. methyl or ethyl alcohol, or an inorganic acid, e.g. aqueous hydrochloric acid. Solid organic materials may be applied as a solution or suspension in a volatile solvent. Rubber articles may be treated with a terpene having a swelling action on rubber to form a conductive film, or they may be given a mild oxidizing treatment. Other examples are given of materials for forming the conductive film.
Patent GB-1303202-A (GB)
IPC: C08G18/72
Filed: 1970-06-17
Abstract: 1303202 Polyurethanes BAYER AG 17 June 1970 [22 April 1970] 11576/72 Heading C3R Polyurethanes are prepared by reacting a compound containing reactive hydrogen atoms with a polyisocyanate which is a prepolymer prepared by reacting a monomeric polyisocyanate with a polyfunctional compound containing at least one phenolic hydroxyl group. The reaction suitably takes place in the presence of a blowing agent so as to form a foam. Preferably the compound containing reactive hydrogen atoms is a compound containing hydroxyl groups and most suitably is a polyether in which at least 10% of the OH groups present are primary OH groups. The prepolymer is preferably prepared from an aliphatic, cycloaliphatic, araliphatic or aromatic polyisocyanate and 4,4<SP>1</SP> - dihydroxydiphenyldimethylmethane but  other compounds, e.g. resorcinol, other phenolic monomeric compounds and phenolformaldehyde condensates may be used. Other compounds containing active hydrogen atoms may also be used in the preparation of the prepolymer.
Patent GB-315488-A (GB)
Title: An improved method of electrically reproducing gramophone and like sound records
IPC: H04R11/08
Filed: 1928-04-19
Abstract: 315,488. Tyers, P. D. April 19, 1928. Magnetic instruments. - The magnetic flux through the vibrating armature of a gramophone pick-up is made variable to control the current output. In one modification Fig. 1, movable soft-iron plates 3, provided with knobs 4 slide in grooves 2 in a permanent magnet 1. Alternatively the relative position of plates 6, 8, Fig. 2, may be varied by moving plate 8 on a pivot 9. A further modification, Fig. 3, comprises a magnetic shunt 11, to which is attached a spring 12, also of magnetic material, in contact with the pole-pieces 10 and whose distance from the pole-pieces may be varied. A fourth construction, Fig. 4, comprises an iron screw 16 threaded into an extension 15 of a pole-piece 14, with a taper end 17 entering a tapered hole 18 in a corresponding extension of the other polepiece. The armature 19 moves between polepieces.
Patent GB-768620-A (GB)
Title: Improvements in or relating to plants for drying particulate material
Inventor: RYDIN HANS FOLKE AXEL
IPC: F26B17/12
Filed: 1955-04-21
Abstract: 768,620. Drying particulate material. STOCKHOLMS SUPERFOSFAT FABRIKS AKTIEBOLAG. April 21, 1955, No. 11593/55. Class 34(2) Apparatus for drying particulate material such as coke consists of a vertical shaft 1 in which are located two concentrically arranged perforated screens 4, 5 between which the material 20 is allowed to slide while a gas stream passes horizontally therethrough, the screens being suspended from the tops of the shaft and being open to their full diameter at the bottom above a common outlet cone 2. Drying gas is blown into the shaft 1 through ports 16 by a fan 15 and flows around annular chamber 13 to pass through the screens to discharge tubes 8 and an annular conduit 6, which also supports screens 4, 5, thence to chimney 18 having a suction fan 19.
Patent GB-1166574-A (GB)
Title: Temperature Control System
IPC: G05D23/275
Filed: 1968-03-11
Abstract: 1,166,574. Control of water heaters. RUDDMELIKIAN Inc. 11 March, 1968 [30 March, 1967], No. 11774/68. Heading H2H. [Also in Division H5] In a beverage vending machine containing a liquid required to be maintained at a determined temperature, a heater is controlled by a temperature sensing means positioned in a chamber above the liquid. The heater may be comprised of two elements, one, 22, in the upper part of the liquid and controlled, by a positionally adjustable mercury thermostat 25 sensing vapour temperature, through a relay coil 32 which when de-energized prepares a circuit for a lower element 21 controlled by a thermostat 39 in contact with the chamber wall. The thermostats 25, 39 may be adjusted to act at the same temperature and where only one heater is used it is preferably located at the bottom of the chamber. A float-operated switch 15, 16 controls a valve (not shown), admitting water through a pipe 14 and an outlet pipe 17 leads to various beverage forming stations.
Patent GB-901385-A (GB)
Title: Knitted carpet
Inventor: LEYBOURNE HAROLD SYLVESTER
IPC: D04B1/00
Filed: 1960-04-04
Abstract: 901,385. Laminates; knitting; floor coverings. TEXAMA Ltd. April 4, 1960, No. 11810/60. Classes 74 (2) and 140. A floor covering comprises a surface ply of knitted fabric in which the pile is raised, said fabric having a backing comprising pile yarns which are laid in without being knitted, and a durable resilient base layer integrally combined with the knitted layer. The backing of the knitted fabric may be cotton, nylon, or acrylic fibre, and the pile yarns may comprise mohair or synthetic fibres, e.g. a fibre blend of nylon and rayon. Foamed plastics and elastomers such as sponge or foam rubber are preferably employed for the base layer, but plastics and elastomers such as natural or synthetic rubber in unaerated form, and polyvinyl chloride may be used. The foam rubber backing may be applied directly to the back of the fabric and spread by means of a doctor blade. The sponge rubber base layer in sheet form may be applied to the underside of the backing by vulcanized rubber cement. The Figure shows how the pile yarns A are incorporated in the loops of the backing threads B in the knitting process.
Patent GB-624802-A (GB)
Title: Improvements in treating surfaces of work-pieces
IPC: B24C3/24
Filed: 1947-05-02
Abstract: 624,802. Sand - blast. AMERICAN WHEELABRATOR & EQUIPMENT CORPORATION. May 2, 1947, No. 11814. Convention date, Oct. 12, 1944. [Class 60] A method of surface treating, utilizing a centrifugal throwing wheel, comprises forming a slurry in which finely divided solid blast particles are suspended in a carrying liquid, directionally discharging under pressure a stream of said slurry at a substantial velocity on to the inner ends of substantially radial blades of the centrifugal throwing wheel adjacent to its axis, and rotating said wheel to accelerate centrifugally the slurry received by the blades and to throw it as a controlled directional stream of uniformly dispersed liquid and solid mixture. The work is carried by a turntable 18; the slurry 21 in a tank 17 is stirred by a paddle wheel 22 and' is forced by a pump 24 through a valve 26 and conduit 25 into a tubular sleeve 39 in the centre of the throwing wheel 13; the sleeve has an outlet port 42 and is rotationally adjustable by a handwheel 43 and gears 46, 47. The solid constituent of the slurry may be organic, such as pulverized husks or shells, or inorganic, such as emery, pumice, marble dust or silicon carbide, and may be an extremely fine powder of about 2,500 mesh. The liquid constituent may be water or a non- oxidizing or corrosion-retarding liquid such as kerosene, light oils, carbon tetrachloride, or trichlorethylene; the liquid is preferably a solvent of the impurities on the work surface. The method is suitable for treating aluminium parts, such as aircraft engine parts, and particularly pistons; it is stated to remove impurities without injury to the surface or alteration of close surface tolerances and to impart a diffused velvety-smooth appearance having increased lubricant - retaining ability and increased fatigue life.