baber/WOPTO huggingface dataset:
Patent GB-974615-A (GB)
Title: Preparation of naphthalene and 2, 6-dimethyl-naphthalene
Inventor: ALLEN JOSEPH GERALD
IPC: C07C4/14
Filed: 1963-08-15
Abstract: <PICT:0974615/C4-C5/1> Naphthalene and 2,6-dimethyl-naphthalene (D.M.N.) are obtained by (1) hydrodesulphurizing a gas oil boiling in the range 440-525 DEG  F. and containing mono- and di-cyclic aromatics; (2) separating a fraction boiling in the range 500-510 DEG F. containing a major proportion of dimethyl naphthalenes having the methyl groups on opposite rings; (3) cooling this fraction to crystallize most of the 2,6-DMN and 2,7-DMN; (4) separating a filtrate enriched in ethylnaphthalene; (5) partially melting the filter cake from (3) and separating a filter cake constituting 2,6-DMN concentrate; (6) isomerizing the melted components from (5); (7) fractionating the isomerizate to obtain an overhead boiling below 510 DEG  F. recycled to step (3) and (8) passing filtrate from step (4) bottoms from step (7) and materials from step (2), boiling below 500 DEG  F. and above 510 DEG  F. to a dealkylation process effected at above 1000 DEG  F. to obtain naphthalene.  Gas oil in line 10 is solvent extracted with furfural and the aromatic extract hydrodesulphurized at 16 at 800-980 DEG  F., 150-1000 p.s.i.g., hydrogen to hydrocarbon mol. ratio of 3-25: 1 and an LHSV of 0.5-10 over cobalt molybdate or molybdenum sulphide on alumina.  A gasoline product is separated and the 400 DEG  F. + product fractionated in towers 34 and 37 to obtain a 500-510 DEG  F. fraction in line 38. The higher and lower boiling fractions are passed by line 22 to dealkylation in zone 24, non-catalytically at 1000-1400 DEG  F., 150-1000 p.s.i.g., hydrogen to hydrocarbon mol. ratio of 3-25: 1 and a residence time of 2-300 seconds or over a cobalt molybdate or molybdenum sulphide catalyst at 1000-1200 DEG  F., 150-1000 p.s.i., a hydrogen to hydrocarbon mol. ratio of 5-25: 1 and an LHSV of 0.2-5. Product boiling in the 450-525 DEG  F. range is recycled. The fraction in line 38 is cooled in crystallizer 42 to 32-87 DEG  F. when 2,6- and 2,7-DMN preferentially crystallize.  The filtrate containing ethylnaphthalene in line 43 is passed to dealkylation. The crystals in line 44 are partially melted at 45 by warming to 70-85 DEG  F., leaving crystals in line 47 containing 90-95% 2,6-DMN. By alternatively cooling to 14-59 DEG  F. and warming to 68-149 DEG  F., the product also contains the 2,7-isomer.  Melted material in line 46 is isomerised and isomerisate boiling below 510 DEG  F. recycled to crystallization and above 510 DEG  F. to dealkylation.  Isomerization may be effected over silica composited with alumina, magnesia or zirconia or over acid activated clay at 572-932 DEG  F. with LHSV of 0.1-20 and a hydrocarbon partial pressure of 0.05-0.5 atmosphere maintained by addition of nitrogen, hydrogen, methane, propane or butanes or using HF-BF3 catalyst in benzene or heptane solvent at 32-87 DEG  F. for several hours.  Isomerisation of methyl groups from one ring to the other does not occur.
Patent GB-160292-A (GB)
Title: Improvements in or relating to steam generators
IPC: F23M5/08
Filed: 1919-12-24
Abstract: 160,292. Thornycroft & Co., Ltd., J. I., and Mackie, R. Dec. 24, 1919. Multitubular boilers; vertical boilers.-Relates to a steam boiler having a furnace into which pulverized fuel is blown together with the air for supporting combustion, the unburned fuel and the products of combustion being directed back upon themselves during combustion. Fuel is supplied to the furnace f, which is closed at one end, by a nozzle o placed at a distance from the furnace mouth. The products flow into smoketubes j arranged parallel to the furnace and terminating at one end in the plane of the furnace mouth. The tube-plate e, which may be inclined, is connected to an annular enlargement h at the top of the boiler. The water space may extend around the chamber between the furnace and the bottom of the boiler. The bottom refractory lining m may be inclined towards the opening n through which the fuel nozzle is inserted. In a boiler having an horizontal furnace, the gases pass into a smoke-box at the rear of the boiler through horizontal tubes arranged above the furnace. The water space may, in this modification, extend around the back of the furnace.
Patent GB-450630-A (GB)
Title: Improvements in and relating to ceramic bodies forming parts of electric discharge devices
IPC: H01J19/42
Filed: 1935-11-22
Abstract: 450,630. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Nov. 22, 1935, No. 32444. Convention date, Nov. 24, 1934. [Class 39 (i)] [See also Group V] In electric discharge vessels wherein an envelope wall is of ceramic material, the lead-in to the electrodes &c. is formed by a ceramic body, which owing to its content of metal oxides such as the oxides of cadmium, uranium or titanium-which are reduced during manufacture-is at least in part electrically conductive; electrodes and the envelope may also be made of such material and may be provided with a conductive layer. Quartz, aluminium oxide or silicate are used to mix with the metal oxide. A mixture of magnesium and titanium oxides in the proportion of 2 to 1 is a suitable composition for the material; this mixture may be first sintered in an oxidizing and afterwards in a reducing atmosphere, to reduce the titanium oxide. To increase the conductivity of the body, metal may be deposited thereon either electrolytically or as a paste before burning ; this metal coating is omitted where the body is to be sealed to the envelope ; metal coatings may also be provided where it is intended to secure electrodes to the wall. In one form a rod 1, Fig. 2, as a whole is reduced and fixed in the envelope 2 by a glass or ceramic seal 3 ; a connection 5 is made to the electrodes and if the reducing action is taken only up to the level when this connection is fixed, a support 7 may be attached to the upper part which remains an insulator. Where a hollow body 11, Fig. 5, is used, the inner face 9 only and it may be the exterior of the body are reduced to form one or two conductors ; the inner surface of the envelope may also be reduced to act as a conductive layer. Electrodes, such as a cathode 12, Fig. 6, may be formed with a conducting layer to which electron emitting material is applied ; the layer extends outside the envelope, and the heater 13 is carried by a screwed-in closing plate 14. Water-cooled grids 25, Fig. 8, for controlled arc rectifiers may be formed from the conducting material, the grids passing through the envelope wall. In a thermionic valve, the envelope 16 may be wholly conducting or may have a conducting layer on its interior or exterior ; the leads 17, 18, 19 are fused into the base 15, the envelope acts as the anode which may be hollow for cooling purposes ; bowl form leads as described above mav be used. The rod 17 for the filament cathode is oxidized at its upper end to carry in an insulating manner the cathode support 21. X-ray, cathode ray and photo-electric tubes may have parts constructed as above.
Patent GB-537920-A (GB)
Title: A device for dimming and dividing the light of an incandescent lamp arranged in the reflector of a head light
IPC: F21V11/00
Filed: 1939-12-18
Abstract: 537,920. Lamps for motor vehicles. BLENDEX AKT.-GES. Dec. 18, 1939, No. 32466. Convention date, Dec. 23, 1938. [Classes 75 (ii) and 75 (iv)] A device for dimming and dividing the lignt of an incandescent lamp in the head light of a motor vehicle is arranged directly on the lamp and comprises inclined wings 4, 12 for dimming the direct rays in a forward direction and for reflecting them in a vertical direction as well as laterally and backwards, the wings being united by two lateral bridges 13 to a semi-annular back supporting member 9 to which is secured a screening cap 6. The wings 4, 13 are arranged either symmetrically or asymmetrically of a hub member and may be of unequal size and inclination to the axis of the lamp. They may be made of sparkling material or material with a matt, smooth or corrugated surface.
Patent GB-1520823-A (GB)
Title: Racing game
IPC: A63F9/14
Filed: 1976-08-04
Abstract: 1520823 Racing game S L GAIL 4 Aug 1976 32517/76 Heading A6H [Also in Division F2] A racing game comprises two or more equal-length tracks 26, a movable member positioned on each track and having trackengaging means and drive means movable along each track for advancing the movable member. Each track comprises two toothed plates separated by a gap in which the movable members are positioned. The members each comprise a horse, dog or rabbit figure 22, Fig. 9, having a pair of pins 206, 208 or 212, 214 resting on the toothed plates. Two endless drive belts 52, 54 Fig. 2, pass over drive rollers 62, 72 and each belt passes along one side of every track 26, Fig. 4. The belts may be rubber or may be like cine-film driven by sprockets. Randomly distributed on the belts are teeth 104 which engage the pins on opposite sides of the figures 22. The engagements cause the pins to be lifted over the teeth on the plates to progress along at varying rates. If the pins on a figure are spaced close together it will progress overall at a slower rate, so that by having figures with different pin arrangements, some figures have better chances of winning.
Patent GB-521016-A (GB)
Title: Improvements in pipe joints
IPC: F16L27/113
Filed: 1938-11-09
Abstract: 521,016. Pipe joints. TURNER & NEWALL, Ltd., and NEVE, K. Nov. 9, 1938, No. 32552. [Class 99 (i)] In a joint for plain-ended asbestos-cement pipes the pipe ends are surrounded by a sleeve 3 and collars 4 which are all of asbestos-cement and are held together by bolts 8, the bolts compressing packing rings 6 in recesses in the sleeve and being wholly concealed by the sleeve and collars. The recesses 9 containing the nuts and bolt-heads may be filled with an asbestosbitumen composition, and rubber washers may surround the bolts between the collars and the sleeve.
Patent GB-1127987-A (GB)
Title: Olefin epoxidation process
Inventor: CHOO CHAI YANG
IPC: C07D301/19
Filed: 1966-07-20
Abstract: 1,127,987. Epoxidation of olefins. HALCON INTERNATIONAL Inc. 20 July, 1966 [21 July, 1965], No. 32610/66. Heading C2C. Olefinically unsaturated compounds are epoxidized by reacting with ethylbenzene hydroperoxide or cumene hydroperoxide in the presence of an epoxidation catalyst and recovering and reusing the catalyst, alpha-phenyl ethanol or alpha-alpha-dimethyl benzyl alcohol being removed from the recovered catalyst stream to the extent that the amount in the total feed to subsequent epoxidation does not exceed 5 or 20% by weight respectively. Preferred catalysts are the naphthenates and carbonyls of molybdenum, vanadium, tungsten, titanium, rhenium, tantalum, niobium and selenium. The olefinically unsaturated compound may be a hydrocarbon, e.g. an olefin, a cycloolefin, styrene, methyl styrene, vinyl cyclohexane, a phenyl cyclohexene or may carry substituents, e.g. allyl alcohol, methallyl alcohol, cyclohexenol, diallyl ether, methyl methacrylate, methyl oleate, methyl vinyl ketone and allyl chloride. The oxidation is preferably carried out in the presence of an organic solvent in the presence of a basic compound, e.g. basic salts of the alkali metals.
Patent GB-1272585-A (GB)
Title: Process for carrying ot exothermic catalytic reactions and an apparatus therefor
Inventor: KWANTES ARIEN
IPC: C07C2/66
Filed: 1968-07-09
Abstract: 1,272,585. Removing heat from liquid exothermic catalylic reaction. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 7 July, 1969 [9 July, 1968], No. 32615/68. Headings B1F and B1X. [Also in Division C2] Heat is removed from a liquid exothermic catalylic reactive by letting the liquid boil in zone I thus dispersing the solid catalyst and increasing the amount of reaction, and then passing the liquid through zone II which has non dispersed catalyst and in which the liquid does not boil. The liquid may be a mixture of a tertiary mono-olefin having four to seven carbon atoms per molecule and a primary alcohol having one to six carbon atoms per molecule and the catalyst may be a solid etherification catalyst. The olefin may be isobutene or isocumylene and the alcohol methyl alcohol. The catalyst may be a styrene/divinylbenzene copolymer containing SO 3 H groups or nickel or platinum on silica or alumina.
Patent GB-443386-A (GB)
Title: Improvements relating to ventilating gears for greenhouses and the like
IPC: E05F11/04
Filed: 1934-11-13
Abstract: 443,386. Ventilating greenhouses; window regulators. STAINES, A. R., Loch Inch, Hambro Avenue, Hayes, Kent, and KINNELL & CO., Ltd., C. P., 65, Southwark Street, London. Nov. 13, 1934, No. 32640. [Classes 20 (iii) and 137] In the operation of ventilating means for greenhouses and the like, in which lights or windows are opened or closed by a chain or wire, the lights are retained in the open position by a pawl 7 which causes a jamming action locking a chain 1 which passes over a pulley 2. The inner end 7a of the pawl is heavier than the outer end 7b which nests on a bracket 3a and to which is secured a weight 10. When the lights are being opened, and the chain 1 pulled downwards, the finger piece 9 rides over the links, but reverse movement of the chain is prevented by the finger-piece 9 which engages a link of the chain 1, and is further held by contact of the end 7b with the bracket 3a. To close the lights, the weight 10 is supported and the chain 1 pulled down to release the fingerpiece 9 when the chain can move freely. A peripheral groove 11 is formed centrally of the chain groove 12 to receive each alternate link, and allow the remaining links to lie flat on the pulley.
Patent GB-967163-A (GB)
Title: Improvements to advancing mine roof supports
Inventor: BENNETT ALBERT EDWARD
IPC: E21D23/16
Filed: 1959-09-25
Abstract: 967,163. Winches; hose rails. COAL INDUSTRIES (PATENTS) Ltd. Sept. 26, 1960 [Sept. 25, 1959; Aug. 2, 1960], Nos. 32684/59 and 26725/60. Headings B8B and B8M. [Also in Divisions E1 and F1] A multiple winch for advancing mine roof supports (see Division E1) is actuated by an hydraulic gear motor 60 or a compressed air or electric motor and consists of four hose reels 61 selectively driven by a pawl-and-ratchet mechanism. Each reel is associated with two toothed discs 78, 79 alternately advanced by pawls 76, 77 mounted on eccentrics 74 which are arranged 180 degrees out of phase on a common driving shaft 73. Each pair of pawls is urged into or out of engagement with the discs by means of an hydraulic ram 80 acting upon a universallyjointed cross-member 81 between the pawls. The winch is mounted on the coal conveyer 10 and advances the roof supports by pulling on their control hoses 108 or on chains or ropes. The reels and spindle are parted to allow selective communication with the control hoses 108 of an hydraulic system (see Heading F1P), for controlling the lowering and advancing mine roof support. Specification 967,164 is referred to.
Patent GB-805409-A (GB)
Title: Omnidirectional beacon antenna
IPC: G01S1/02
Filed: 1956-10-26
Abstract: 805,409. Aerials. STANDARD TELEPHONES & CABLES Ltd. Oct. 26, 1956 [Nov. 14, 1955], No. 32717/56. Class 40 (7). An aerial system suitable for use at a Tacan radio-navigation beacon station comprises a vertically aligned group of spaced bi-conical elements 1 to 6 inclusive. Aligned with and above the group is a further bi-conical element 7 separated from the group by a conductive counterpoise surface 9. The purpose of this element is to improve the vertical-angle coverage. The feed to the array is by means of coaxial line 8 the energy from which is divided at point 11 and further at points 17 and 18 in the upper part and at 12, 14 and 16 in the lower part. Matching transformers (not shown) are included at the division points and the power distribution between the units 1 to 6 is in the ratio 1 :4 :9 :9 :4 :1. The element 7 receives the same power as the central units 3 and 4. It is arranged that the current fed to units 1 and 2 leads and that fed to units 5, 6 and 7 lags with respect to that fed to units 3 and 4 so as to uptilt the vertical lobe. In order to provide the modulation necessary in the Tacan beacon the elements above described are housed in a tube of fibreglass or the like 20 and mounted centrally in a structure including a counterpoise 25 corresponding to the counterpoise 9 of Fig. 1, and a bottom counterpoise 24. A parasitic element 21 of high resistance wire is supported on a cylinder 22 of non-conductive material rotatable to give the fundamental frequency modulation while a plurality of parasitic elements equally spaced on a second cylinder 23 rotated in synchronism gives the harmonic frequency modulation.
Patent GB-922571-A (GB)
Title: Improvements in or relating to inductive datum converters
IPC: H02P5/50
Filed: 1960-09-23
Abstract: 922,571. Measuring speed electrically. SIEMENS-SCHUCKERTWERKE A.G. Sept. 23, 1960 [Sept. 23, 1959], No. 32793/60. Class 40 (1). [Also in Group XXXVI] Apparatus for measuring the angular velocity of a shaft comprises a disc 2 (Fig. 1) of non- magnetic material, mounted on the shaft 6, carrying a number of equally spaced permanent magnets 4 round its periphery, each of which produces a pulse in a Hall plate semi-conductor member 1 as they pass, the pulse frequency being proportional to the angular velocity. The magnets 4 may have their axes radial, as shown, or parallel to the axis of the shaft (Fig. 4), with the semi-conductor member 1 sandwiched between ferrite plates 18, 19. The disc 2 is then backed with an iron disc or ring 11 to concentrate the magnetic field on the other side. The apparatus may be used on each of two machines and the difference between the digital count of each speed employed to synchronize the machines.
Patent GB-1345082-A (GB)
Title: Indoaniline leuco derivatives for dyeing keratinic fibres
IPC: A61Q5/10
Filed: 1972-07-13
Abstract: 1345082 Diphenylamine dyes L'OREAL 13 July 1972 [14 July 1971] 32816/72 Heading C4P [Also in Division D1] Dyestuffs of the general formula wherein Z is amino, acylamino or OH, and each of R 1 , R 2 , R 3 , R 4  and R 5  is H or C 1 -C 4  alkyl or R 1  and R 4  or R 2  and R 5  together with the linking carbon and nitrogen atoms may form a dihydro-oxazinyl or pyrrolinyl ring or their inorganic or organic acid salts, e.g. oxalates, hydrochlorides or tartrates are used to dye keratinic fibres and especially human hair. The dyes wherein Z is other than acylamino and at least two or R 1 -R 5  are other than H are claimed per se. They are prepared by reducing the corresponding indoaniline in aqueous or aqueous alcoholic medium at alkaline pH using sodium hydrosulphite or ammonium sulphide as reducing agent or in an organic solvent, by catalytic hydrogenation in presence of palladium or barium sulphate or on charcoal.
Patent GB-849612-A (GB)
Title: Improvements in or relating to applicators
IPC: A45D34/04
Filed: 1958-10-15
Abstract: 849,612. Cosmetic appliances. AVERSA, J. Oct. 15, 1958 [Feb. 26, 1958], No. 32948/58. Class 81(2). A liquid cosmetic applicator comprises a rod 8 extending through a tubular container 2, the ends of which are sealed by synthetic rubber washers 13, 14. The end of the rod extends into and is attached to a cylindrical casing 1 and, when the appliance is to be used, the container 2 is slid into this casing so that the ribbed end 12 of the rod, 8, carrying a quantity of cosmetic, is left exposed for use. A spring 19 is carried loosely around the rod, within the container, for agitating the contents and a decorative cover cap may be fitted over the rod and to engage against a shoulder 9 when it is not in use. The left hand end 7 of the rod is screwed into the closure plug 5 so that the container and rod may be readily removed for discarding when the contents are exhausted.
Patent GB-877348-A (GB)
Title: Improvements in acceleration responsive device
Inventor: JR EDWARD VICTOR HARDWAY
IPC: H01H35/14
Filed: 1958-10-16
Abstract: 877,348. Inertia switches operated by vibration; switches, partly electromagnetic. ROBERTSHAW-FULTON CONTROLS CO. Oct. 16, 1958, No. 33084/58. Class 38 (5). [Also in Group XIX] An acceleration responsive switch fixed to a cooling tower fan, for example, in order to detect excessive vibration, is calibrated by adjusting the screw 34 to hold magnetic mass 26 away from magnet 28 in such a position that the mass just cannot fall under the combined forces of normal vibration and gravity. When excessive vibration occurs, the mass falls and rod 24 actuates switch 38. The mass is returned manually by plunger 40 or may be returned electromagnetically.
Patent GB-1309314-A (GB)
Title: Method and apparatus for cooling an electric wire insulated by  extrusion
IPC: B29C47/00
Filed: 1970-07-09
Abstract: 1309314 Cooling coated wire OY NOKIA AB 9 July 1970 [11 July 1969] 33475/70 Heading D1L In the coating of electrically conducting wires with a synthetic plastics insulating layer, the applied coating is cooled by directing jets of water at the longitudinally travelling wire, the jets having a major velocity component in the direction of wire travel, and which is at least as great as the speed of wire travel. The wire may be passed through at least one trough 6 containing spray nozzles. The spray head may comprise a frame 12 affixed in the trough. A cylindrical passage 14 is formed therein and has a groove 15 for threading the wire in. Water passage 16 surrounds the passage 14 and communicates via 17 with water supply duct 18 which extends the length of the trough. The frame 12 has two end plates, the downstream one 20 of which has an annular array of orifices 21 formed therein surrounding passage 14, whereby water is sprayed onto the wire. A plurality of heads may be located along the trough. In a modification, two passages 14 may extend side-by-side in a single spray head.
Patent GB-1345815-A (GB)
Title: Digital light deflection using electrooptic grating
IPC: G02F1/29
Filed: 1971-07-16
Abstract: 1345815 Deflecting light RCA CORPORATION 16 July 1971 [20 July 1970] 33528/71 Heading H4F A digital light deflecting system comprises an electro-optic crystal sheet 16 thin along the crystal Y-axis and provided on one major surface with a plurality of columns 18, 32, 34, 36, 38, of periodically spaced electrodes, with different spacing in each column, and on the other surface with either a sheet electrode or preferably a similar registered array of electrode columns, so that by addressing a selected one or combination of columns to impress spatially varying electric fields across the sheet 16, a coplanar polarized sheet of light passing through the sheet 16 is deflected through a selected angle 0. As described, the input light sheet is provided by a laser beam 10 passing through cylindrical lenses 13, 14 of a beam expander, and a polarizer 15. The plane of polarization may be parallel or at 45 degrees to the crystal Y-axis, for sheet 16 to act as a phase of polarization grating respectively. In each column the electrodes may be rectangular with identical height and spacing, but other periodic arrays are possible, e.g. one in which the electrode width varies sinusoidally in the Z direction, which gives a large proportion of first order diffraction. Each column may be at 90 degrees to the direction of the incident beam, or, e.g. at the Bragg angle. In the latter case, if the width of the electrodes is sufficiently great, high order diffraction components are absent. The deflected light sheet 6 may be compressed back to a beam of light. In Fig. 4 (not shown) this beam of light is then converted to a sheet in the orthogonal direction and passed to a corresponding one of a stack of individually operable crystal sheets 16 for deflection in a plane at 90 degrees to the first deflection plane. The sheet 16 may be of LiNbO 3  or Sr 0À75 Ba 0À25 Nb 2 O 6 .