baber/WOPTO huggingface dataset:
Patent GB-1444963-A (GB)
Title: Prostanoic and prostenoic acid derivatives and methods for their  preparation
IPC: C07C29/62
Filed: 1973-07-18
Abstract: 1444963 Silylated prostaglandin intermediates AMERICAN CYANAMID CO 8 July 1973 [24 July 1972] 34290/73 Heading C3S [Also in Division C2] Trimethylsilyl 7 - (5 - oxo - 3 - trimethylsilyloxy - 1 - cyclopenten - 1 - yl)heptanoate, dimethylisopropylsilyl 7 - (5 - oxo - 3 - dimethylisopropylsilyloxy - 1 - cyclopenten - 1 - yl) heptanoate and dimethyl - t - butylsilyl 7 - (5- oxo - 3 - dimethyl - t - butylsilyloxy - 1 - cyclopenten - 1 - yl)heptanoate are prepared by reacting 7 - (3 - hydroxy - 5 - oxo - 1 - cyclopenten - 1 - yl)heptanoic acid with trimethylsilyl chloride, dimethylisopropylsilyl chloride and dimethyl - t - butyl chlorosilane respectively. Compounds of the formula wherein n is 1 or 2; R 7  is H or C 1-3  alkyl; R 6 <SP>1</SP> is C 1-3  alkyl; R 2  is straight chain C 2-10  alkyl optionally substituted by 1 or 2 C 1-3  alkyl radicals, straight chain C 3-10  alkenyl optionally substituted by 1 or 2 alkyl radicals having 2 to 5 carbon atoms or straight chain C 3-10  alkynyl; and Z is -(CH 2 ) m -, -(CH 2 ) m -C(R 4 ) 2 CH 2 -, -(CH 2 ) m CH(R 5 )-, -(CH 2 ) m OCH 2 - -(CH 2 ) m S-CH 2  or cis CH 2 CH=CH(CH 2 ) p -, wherein m is 3 to 8, p is 2 to 6, R 4  is C 1-3  alkyl and R 5  is C 1-3  alkyl, F or phenyl; are prepared by reacting compounds of the formula  with compounds of the formula which are obtained silylating the corresponding hydroxy compounds. Trimethylsilyl 7 - (5 - oxo - 3 - trimethylsilyloxy - 1 - cyclopenten - 1 - yl) - cis - 5 - heptenoate, trimethylsilyl 6 - (5 - oxo - 3 - trimethylsilyloxy - 1 - cyclopenten - 1 - yl) - cis - 3- hexenoate, trimethylsilyl 8 - (5 - oxo - 3 - trimethylsilyloxy - 1 - cyclopenten - 1 - yl) - cisoctenoate, trimethylsilyl 9 - (5 - oxo - 3 - trimethylsilyloxy - 1 - cyclopenten - 1 - yl) - cis- 7 - nonenoate and dimethylisopropylsilyl 7 - (5 - oxo - 3 - dimethylisopropylsilyloxy - 1- cyclopenten - 1 - yl) - cis - 5 - heptenoate are prepared by silylating the appropriate (5-oxo-3- hydroxy-1-cyclopenten-1-yl)alkenoic acids.
Patent GB-1254565-A (GB)
Title: Recording system for color video signals
IPC: H04N9/793
Filed: 1968-11-11
Abstract: 1,254,565. Colour video signal recording. SONY CORP. 11 Nov., 1968 [13 Nov., 1967], No. 34306/71. Divided out of 1,254,564. Heading H4F. The disclosure is identical to that of Specification 1,254,564 but the claims relate to a system for recording a colour video signal having a luminance component and a chrominance component having its frequency band within that of the luminance component, wherein the luminance component is frequency modulated on to a carrier and the frequency band of the chrominance component is shifted so as to lie at or about the lower limit of the frequency band of the frequency modulated luminance component. Both components are then recombined and recorded magnetically.
Patent GB-853521-A (GB)
Title: Electro-plating uranium with protective metals
IPC: C25D5/46
Filed: 1945-12-18
Abstract: 853,521. Electroplating uranium. UNITED KINGDOM ATOMIC ENERGYAUTHORITY Dec. 18, 1945 [Jan. 6, 1945], No. 34351/45. Class 41 Articles of uranium e.g. rods, are protected against atmospheric corrosion by coating with copper electrolytically. The copper coating may have an undercoat of nickel, and over-coats of nickel, lead, tin, zinc, or chromium. In the case of tin, this coating may be melted so as to diffuse into the copper coat e.g. by heating to 300 ‹C. in a bath of poly-silicone. Preferably the uranium rods are first etched with HCI alone or mixed with phosphoric acid, or with molten basic ferric chloride. Specification 853,522 is referred to.
Patent GB-1139552-A (GB)
Title: Isocyanate derivatives
IPC: C09D175/00
Filed: 1965-11-08
Abstract: 1,139,552. Isocyanate derivatives. UNION CARBIDE CORP. 8 Nov., 1965 [9 Nov., 1964], No. 34456/68. Divided out of 1,139,551. Heading C2C. [Also in Divisions B2, C3 and D1] Isocyanate derivatives, e.g. compounds containing urea and/or urethane groups are prepared by reacting a compound which contains at least one hydrogen atom reactive with isocyanate groups with an organic diisocyanate of the general formula wherein R represents a divalent substituted or unsubstituted aliphatic, alicyclic or aromatic group containing 2 to 12 carbon atoms and R 1  represents a divalent olefinically unsaturated aliphatic group containing 2 to 24 carbon atoms, with the provisos that (1) when both R variables represent alkylene groups, R 1  is not the cis-vinylene group and (2) each isocyanato moiety, individually, is at least 2 carbon atoms removed from the moiety of the above formula. The diisocyanate preferably used is bis - (2 - isocyanatoethyl) - fumarate, and the reactive hydrogen groupcontaining compound may suitably be an alcohol, amine, water, a thiol or aminoalcohol. Depending on the quantities of diisocyanate and reactive hydrogen group-containing compounds used, the resulting product may be terminated with isocyanate groups or the reactive hydrogen containing groups. In examples bis- (2-isocyanatoethyl)-fumarate is reacted with (1) n-butanol, (2) n-butylamine, (3) allyl alcohol, (4) phenol, (5) 2-mercaptoethanol, (6) 2-butene- 1,4-diol, (9) piperazine, (14) 1,6-hexanediamine, (16) 2-mercaptoethanol, (17) piperazine and (18) water to produce respectively (1) bis-[2-(nbutoxyformamido)-ethyl]-fumarate, (2) bis-[2- (n-butyl-ureylene)-ethyl]-fumarate, (3) bis-[2 - (allyloxyformamido) - ethyl] - fumarate, (4) bis- [2 - (phenoxyformamido) - ethyl] - fumarate, (5) bis - [2 - (2 - hydroxyethylthiolcarbamido)- ethyl] - fumarate, (6) bis - [2 - (4 - hydroxy - 2 - butenoxyformamido) - ethyl] - fumarate, (9) bis - [2 - (1 - piperazinoforrnamido) - ethyl] - fumarate, (14) 2,2<SP>1</SP>. - (hexamethylenediureylene) - diethyl bis - (2 - isocyanatoethyl fumarate), (16) 2,2<SP>1 </SP>- (ethyleneoxythiodiformamido) - diethyl bis - (2 - isocyanatoethyl fumarate), (17) 2,2<SP>1</SP> - (piperazin - 1,4 - ylenediformamido) - diethyl bis - (2 - isocyanatoethyl) - fumarate and (18) 2,2 - (ureylene) - diethyl bis - (2 - isocyanatoethyl fumarate). In Example 26, bis-(2-isocyanatoethyl)-fumarate is prepared by slurrying bis-(2-aminoethyl)-fumarate dihydrochloride in o-dichlorobenzene, passing phosgene into the slurry, removing the solvent by vacuum distillation and recovering the product by evaporative distillation.
Patent GB-952364-A (GB)
Title: Photographic film camera with a coupled exposure regulating device
IPC: G03B7/085
Filed: 1960-10-07
Abstract: 952,364. Photographic cameras. AGFA A. G. Oct. 7, 1960 [Oct. 15, 1959], No. 34502/60. Headings G2A and G2E. A switch is provided in the circuit of a photocell in a camera and is actuated by an element responsive to the insertion of film, the said switch disconnecting the photo-cell power supply when there is no film in the camera. In an empty cine camera an arm 18 rests against the film spindle 12, but on insertion of the film it is rotated anticlockwise to close the switch 21, 22 in the circuit of the photo-cell 3 and the battery 8. Arm 18 may be coupled to means indicating the length of unused film remaining. In the embodiment of Fig. 3, the switch 26 is closed by a pin 24 actuated by the edge 16a of the film 16, and in Fig. 4, the face 35a of the spool contacts pin 32 to close the switch 29, 30.
Patent GB-626229-A (GB)
Title: Improvements in or relating to reciprocating hydraulic servo-motors for actuating the blades of a propeller
IPC: F15B15/14
Filed: 1946-11-21
Abstract: 626,229. Stuffing-box substitutes. ABBEY, A. (Aktiebolaget Jonkopings Motorfabrik). Nov. 21, 1946, No. 34535.. [Class 122(v)] A reciprocatory hydraulic servo-motor for actuating the blades of a propeller has a hydraulically operated piston 3 disposed in a cylinder 4 forming a portion of a rotatable hollow propeller shaft 1 having a sleeve 7 pivotally mounted thereon rotating in a bush 9, the latter having two pressure liquid supply channels 10, 11 leading to annular connection chambers 13, 14 in the inner surface of the bush or alternatively and/or in the outer surface of the sleeve communicating with channels 5, 6 in the sleeve, and annular grooves 17 containing sealing rings 18 preferably of hard wear resisting material are provided in the surface between the bush and the sleeve. When the pressure liquid is oil a slight leakage past the sealing rings may be allowed for lubricating the relatively rotating surfaces, the leaking oil being collected by grooves 19 and return channels 20. The bush 9 may be mounted axially displaceable in its housing 12 to prevent excess side thrust on the sealing rings. Cooling passages 21 may be provided in the bush.
Patent GB-802211-A (GB)
Title: Improvements in and relating to drills
Inventor: FISH BRIAN GRIFFITH
IPC: E21B10/38
Filed: 1955-12-02
Abstract: 802,211. Boring earth. COAL INDUSTRY (PATENTS), Ltd. Nov. 21, 1956 [Dec. 2, 1955], No. 34558/55. Class 85 In a drill head comprising a tubular body 10 having one or more bores 13, 14 in its wall to convey water from a duct or ducts in the walls of a series of hollow drill rods holding the head, the bore or bores communicate with an opening or openings each positioned adjacent ad behind one of the cutting edges 11, 12 of the head. The end of the drill rod carrying the head is shaped to fit the tapered external portion of the body, and has two ducts which open into a groove 10b on the body and communicating with the bores. The drilling debris and water are discharged through the centres of the head and the drill rods.
Patent GB-1114005-A (GB)
Title: Improvements in or relating to mass spectrometers and mass spectrometry
Inventor: GREEN BRIAN NOEL
IPC: H01J49/32
Filed: 1965-08-12
Abstract: 1,114,005. Mass spectrometers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 27 July, 1966 [12 Aug., 1965], No. 34603/65. Heading H1D. In a mass spectrometer with a magnetic analyser whose field is varied to scan the mass spectrum, the effect of irregularities in the magnetic field due ,to eddy currents is compensated by means of an auxiliary ion beam control device externally located relative to the magnetic poles. The auxiliary device may be an auxiliary deflection magnet located before or after the analysing magnet, or a magnetic member placed close to the poles of the analyser magnet. In the double-focusing instrument with an electrostatic analyser described the auxiliary device may be a unipotential three-element lens located before the electrostatic analyser, between the electrostatic analyser and the magnetic analyser or after the magnetic analyser.
Patent GB-1313374-A (GB)
Title: Electromagnetic pumps for liquid metals
IPC: H02K44/06
Filed: 1970-07-16
Abstract: 1313374 Pumps operating by electromagnetic interaction with fluids GROUPEMENT ATOMIQUE ALSACIENNE ATLANTIQUE 16 July 1970 [16 July 1969] 34634/70 Heading H2A An electromagnetic pump comprises a thermally insulated conduit 1 of refractory material, an arrangement for heating the conduit, two stator yokes 6 arranged adjacent the conduit, each yoke being formed with slots 7, Fig. 2 (not shown), perpendicular to the direction of the conduit, and a flat electrical winding 8 disposed in each slot. The pump disclosed comprises a graphite conduit coated with an oxygen resistant metal sheath 2 which in turn is surrounded by thermal insulation 3. Each yoke comprises segments secured together by a nut and bolt arrangement. The windings may be removed from the yokes simply by withdrawing the yokes from the conduit, pushing the windings out of the slots and then sliding them along the yokes. The yokes are located in ventilation chambers 9. The conduit 1 is slightly tapered to facilitate removal of accidentally solidified metal.
Patent GB-1379467-A (GB)
Title: Electrophotographic charging
IPC: G03G13/02
Filed: 1972-07-25
Abstract: 1379467 Electro-photographic apparatus FUJI PHOTO FILM CO Ltd 25 July 1972 [26 July 1971] 34828/72 Heading G2N Apparatus for charging electro-photographic material comprising an insulating support and a photo-conductive insulating layer directly coiled thereon comprises a light source for rendering the layer conductive and first and second corona discharge means for successively charging the layer after the illumination stage with corona discharge ions of opposite polarity. As shown, the layer 11 may be illuminated by a lamp 38, Fig. 3 charged with a corona device 36 with the corona wire in longitudinal alignment with feed of the layer 11 in web form - and then charged with a device 31 placed across the layer and finally charged with a device identical to the first device 36. In a further embodiment, Fig. 4, both corona discharge devices 41, 43 are placed across the web feed.
Patent GB-1322975-A (GB)
Title: Methods of producing single crystals of semiconductor material
IPC: C30B13/20
Filed: 1970-07-20
Abstract: 1322975 Producing semi-conductor rods PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 20 July 1970 [21 July 1969] 34978/70 Heading B1S Semiconductor single crystals are produced by floating zone melting of a vertical rod 7 of semiconductor material in a tubular gas-tight chamber 1, containing a controllable atmosphere supplied via inlet 10 and departing via outlet 11, heat being supplied by means of an induction coil 13 which tightly surrounds the chamber at a narrowed portion thereof 12, the internal diameter of which is smaller than the diameter of the solid portions of the rod 7 and/or of the single crystal being formed. The rod 7 is attached to seed crystal 4 which is of smaller diameter than the neck and moves downwards, past the coil 13, passing through the constriction where the molten zone 15 aquires a constricted profile 17. The rod and formed crystal are rotated, preferably in opposite directions, to stir the molten zone.
Patent GB-737855-A (GB)
Title: Improvements in or relating to bodies comprising a synthetic resin mass having a metal article partly embedded therein
Filed: 1953-12-16
Abstract: That part of a metal article that is to be embedded in thermosetting synthetic resin during moulding is coated with polyisobutene, to prevent formation of cracks in the resin near the metal.  The polyisobutene may be less than 0.5 mm. thick.  In an example a part of an apparatus for generating X-rays is made by dipping a copper rod into a petrol solution of polyisobutene, evaporating the solvent to leave a coating 0.16 mm. thick, and embedding the coated part in a thermosetting synthetic resin-mica composition by moulding.
Patent GB-480904-A (GB)
Title: A process for refining capillary-active alkyl esters of sulphuric acid and/or salts thereof in aqueous solutions
Filed: 1936-12-11
Abstract: <PICT:0480904/IV/1> Alkyl esters of sulphuric acid or salts thereof, obtained by absorbing alkenes in sulphuric acid (and in the case of the salts, neutralizing), are refined in aqueous solution by continuous extraction in countercurrent by means of lower boiling hydrocarbons in the presence of a sufficient proportion of lower boiling oxygen containing organic compounds to prevent the formation of emulsions.  A quantity of oxygen containing substances, e.g. alcohol, must be added such that when the solutions to be refined enter the extraction zone, the concentration of oxygen-containing organic compounds in the solution is in equilibrium with their concentration in the extract flowing out, and that when the refined aqueous solutions leave the extraction zone the concentration of oxygen-containing compounds therein is in equilibrium with their concentration in the lower boiling hydrocarbons entering the zone. According to an example, sodium alkyl sulphate, containing polymers and obtained from the product from the absorption in sulphuric acid of alkenes obtained by vapour phase cracking of paraffin wax, are passed from a storage tank V1 into an extraction column E, diluted with a mixture of gasoline, alcohol and water from a separator S and treated in countercurrent with a mixture, from a tank V2, consisting of 92,2 parts of gasoline, 6,5 parts of alcohol and 0,9 parts of water.  The mixture of gasoline, polymerization products, water and alcohol passes to a distillation tower D2 and leaves at the bottom, the distillates passing into the separator S.  The sodium alkyl sulphate solution is distilled in the tower D1, the distillate passing to the separator S. The upper layer in S which is rich in gasoline is returned to tank V2 and the lower layer rich in alcohol is used as described to dilute the crude material in extractor E. The purified sodium alkyl sulphate solution is drawn off from the bottom of tower D1.  Specification 407,990 is referred to.
Patent GB-337620-A (GB)
Title: Improvements in or relating to floating roofs for liquid storage tanks
IPC: B65D88/34
Filed: 1929-11-18
Abstract: 337,620. Chicago Bridge & Iron Co., (Assignees of Bailey, O. A.). Dec. 22, 1928, [Convention date]. Tanks.-Floats 8, Fig. 2, support a flexible cover 6, and may be so arranged that the cover is normally convex in which case rain water drains into the tank past the jointing members 2. The floats may have pipes 10 through which liquid accumulating therein may be expelled by the gases above the liquid. When the cover is normally concave, rain water is drained by a sump 112, Fig. 4, and a pipe 111.
Patent GB-873363-A (GB)
Title: Binders for road application
Inventor: LES TADEUSZ LEON
IPC: C08L91/00
Filed: 1958-11-03
Abstract: A composition suitable as a binder in road making comprises a petroleum distillate fraction with a viscosity of 100-250 S.S.U. at 210 DEG F., 5% to 20% by weight of butyl rubber and 40% to 60% by weight of a thickening agent.  The petroleum distillate may be an oil such as an aromatic extract obtained by solvent extraction of lubricating oil e.g. phenol extract, but liquid sulphur dioxide, chlorex, furfural, liquid sulphur dioxide/benzene or nitrobenzene extracts may also be used.  The butyl rubber is a copolymer containing 70%-99,5% of an iso-olefine containing 4-7 carbon atoms per molecule and 30%-0,5% of a conjugated multi olefine containing 4-10 carbon atoms per molecule.  The thickening agents are petroleum resins, wood rosin and limed rosin and calcium salts of naphthenic acid.
Patent GB-155296-A (GB)
Title: Process for feeding electric traction lines supplied with direct current
IPC: B60M3/02
Filed: 1920-12-15
Abstract: 155,296. Sorelli, E. Dec. 15, 1919, [Convention date]. Systems with special distributing-arrangements for distant parts of track.-The line c of an electric traction system is supplied with current from a generator P, and a distant point along the line is connected to a generator S of higher potential than the generator P. A buffer battery system may be connected to the line.
Patent GB-1273540-A (GB)
Title: A control system for an engine
Inventor: KEMPSON BERTRAM CARL
IPC: B60W10/10
Filed: 1968-06-14
Abstract: 1,273,540. Variable speed control. DOWTY HYDRAULIC UNITS Ltd. 12 June, 1969 [14 June, 1968; 24 July, 1968], Nos. 28469/68 and 35355/68. Heading F2D. [Also in Divisions G2-G3] A control system for a fuel injection engine and a variable ratio transmission comprises an engine driven centrifugal governor 44 which acts on a fuel control lever 2 to increase fuel flow to the engine when the engine speed decreases and thus tends to maintain engine speed within a predetermined range, and additionally acts on a valve 16 to reduce the transmission ratio when engine speed falls below a selected speed within or below the predetermined range. The governor 44 is loaded by a spring 62 connected to a lever 58 which adjusts the spring load to vary the engine speed range. As shown the variable ratio transmission comprises a variable displacement pump 4 supplying pressure liquid to an hydraulic motor or hydraulic ram. The pump displacement is varied by an hydraulic servomotor 6 loaded by a spring 9 towards a pump minimum displacement position. The pump displacement is increased by pressure liquid supplied to the servomotor 6 from an engine driven pump through a restrictor 15 at a pressure determined by the variable throttle valve 16 controlled by the governor 44. An additional valve 69 reduces the pressure of the liquid supply to the servo motor 6 and thus the pump displacement when the pump delivery pressure exceeds a predetermined value. A by-pass valve 18 in parallel with the throttle valve 16 is opened to reduce pump displacement to a minimum during starting. Operation.-When the engine speed is above the selected value the throttle valve 16 is closed and the pump 4 operates at maximum displacement, whilst the governor 44 acts on the lever 2 to increase fuel supply to the engine when the engine speed decreases and vice versa. As the engine speed falls below the selected value the throttle valve 16 is progressively opened to reduce the pressure supply to the servo motor 6 and thus reduce pump displacement. When the engine speed is below the predetermined range the engine works at maximum fuel injection. If the pump delivery pressure exceeds a predetermined value the pressure acts on a plunger 72 of the valve 69 to move left a valve spool 74 and reduce the pressure supply to the servo motor 6 whereupon the pump displacement and thus the pump delivery pressure are reduced. In Fig. 5 (not shown) the pump displacement is adjusted by a spring centred double acting servo motor (81) and a forward-reverse valve (93) is interposed in the line (13) between the throttle valve (16) and the servo motor (81). In addition to the governor control of the throttle valve control lever (34) the lever is connected through a lost motion connection (101) to a lever 98 which may override the automatic control and open the throttle valve 16 to provide hydrostatic braking. The hydrostatic transmission may be replaced by a steplessly variable friction gear. Reference has been directed by the Comptroller to Specification 1,035,821.
Patent GB-522116-A (GB)
Title: Improvements in or relating to gas cookers
IPC: F24C15/12
Filed: 1938-12-05
Abstract: 522,116. Splash guards and covers for cooking stoves. MAIN, Ltd., R. & A., and TAYLOR, R. Dec. 5, 1938, No. 35409. [Class 126] A splash guard 15 is carried by levers 13 pivoted at each side of the cooker to pins 9 carried by arms 12 extending rearwardly from brackets 11 on the cornice frame 10. The ends 16 of the levers 13 normally engage adjustable stops 18 on the brackets 11 and are locked against displacement by the engagement of contact faces 24 on their lower surfaces with adjustable abutments 23 on levers 19 which are pivoted on pins 20 to extensions 21 on the brackets 11 and have noses 26 engaging abutments 27 on the brackets. When the levers 19 are raised by means of a connecting rod 25 the splash guard may be turned to rest on the hot-plate to act as a table.