baber/WOPTO huggingface dataset:
Patent GB-1112696-A (GB)
Title: A new substituted coumarin
IPC: C07D311/16
Filed: 1967-02-20
Abstract: 6,7 - Dihydroxycoumarin - 4 - methylsulphonic acid and its salts are prepared by heating 6,7-dihydroxy-4-halogenomethylcoumarin with a metal sulphite and converting the metal salt thus obtained into the free acid, another metal salt, or salts with organic bases such as papaverine, aminophylline, vicamine, pyridoxine and ketaine. Therapeutic compositions contain the above novel compounds as the active ingredients. The compositions, which may be administered orally, parenterally, or rectally, are useful in the treatment of capillary permeability or capillary fragility and for protecting oxidizable metabolites and drugs from oxidation in vivo.
Patent GB-501993-A (GB)
Title: Telescopic clothes props
IPC: D06F53/04
Filed: 1938-06-16
Abstract: 501,993. Telescopic posts. FORSTER, S. June 16, 1938, No. 7945. [Class 20 (i)] [Also in Group XIV] In telescopic clothes props comprising separate sections a, g slidably connected together by metal bands i, f, and held in adjusted position by notches c ir the edge of one section engaging a projection h<1> on the top of the other section, metal plates d arc fixed to the notched edge so as to overlap the notches, and the pro jection h<1> comprises a metal strip which projects horizontally and is then bent vertically upwards to engage behind the overlapping parts of the plates d to form a positive catch. Sufficient clear ance is allowed in the bands i, f to permit disengagement.
Patent GB-1035975-A (GB)
Title: Improvements in and relating to electrical apparatus producing the product in digital form of two quantities
Inventor: LEWIS BRIAN GEORGE
IPC: G01K17/16
Filed: 1964-02-26
Abstract: 1035975 Electric selective signalling FOSTER INSTRUMENT CO Ltd 26 Feb 1965 [26 Feb 1964] 7965/64 Headings G4D D6Y and D7X  Electrical apparatus for obtaining the product of two quantities in digital form comprises a cyclically-operable electrical switch arranged to operate with a mark : space ratio controlled by a bridge circuit measuring one of the quantities, a pulse train with a prf proportional to the other quantity being supplied to pulse responsive means via the switch. Heat transferred to a liquid in a heating apparatus is measured by passing pulses at a prf proportional to the flow-rate to a switch (relay or electronic) controlled via a phase-sensitive amplifier from a bridge which compares the input and output temperatures of the liquid and incorporates a motor-driven potentiometer. The switch is closed (and passes pulses) for a fraction of the time, proportional to the temperature difference. Temperature-dependence of density and specific heat can be corrected for by a resistance sensitive to some mean liquid temperature and incorporated in the bridge.
Patent GB-873860-A (GB)
Title: Ballasts for gaseous discharge lamps
IPC: H05B41/232
Filed: 1959-03-09
Abstract: 873,860. Transformers; supply systems for space discharge apparatus. NASTER, B. K. March 9, 1959, No. 8077/59. Classes 38 (2) and 38 (4). A ballast transformer for supplying fluorescent lamps 12, 14 (Fig. 3) in lead-lag relationship comprises an auto-transformer with first and second secondary windings 46, 48 in series with the lead lamp 12 through capacitor 50 and a third secondary winding 66 and part (or all, Fig. 10, not shown) of secondary winding 48 in series with the lag lamp 14. Removal of either lamp de-energizes the primary winding. Winding 46 may be wound over primary 18 (Fig. 1) to obtain close coupling, windings 48 and 66 being separated from the primary by magnetic shunt members 102 to increase the leakage reactance. The condenser 50 may be included with the transformer in the common sheet metal housing pan 106. In other arrangements (Figs. 4 and 8, not shown) the windings are arranged side by side on the centre core member and the secondaries have different inductive reactances due to their location in relation to the primary and to the provision of magnetic shunting members. Air gaps are arranged between the magnetic shunting members and the centre core member and at one or both ends of the latter. The areas of contact between the centre core member and the end yokes are reduced to provide saturated regions. The arrangement is said to provide a nearly constant input current despite wide variations in input voltage and the position of tap 72 (Fig. 3) is selected to give also the maximum level of power factor correction. A modified arrangement for operating a single lamp is described (Fig. 12, not shown).
Patent GB-637868-A (GB)
Title: Improvements in or relating to liquid compositions including a styrene monomer and method of preventing polymerization of a styrene monomer
IPC: C07C7/20
Filed: 1947-03-25
Abstract: The polymerization of aromatic vinyl compounds is inhibited by adding thereto from 0.001-5 per cent of a phenol monosulphide of the general formula (OH)n-R-S-R-(OH)n, where R is the phenol residue and n is an integer such as di-(o-benzyl phenol)-, di-(p-t-butyl catechol)-, di-carvacrol-, di-catechol-, di-m-cresol-, di-o-cresol, di-(di-t-butyl catechol)-, di-phenol-, or di-thymol-, monosulphide, or the monosulphide of catechol monobenzyl ether.  Polymers of this nucleus such as (OH)n-R-S-(OH)nR-S-(OH)nR-S-R(OH)n may also be used. Vinyl compounds which may be stabilized include divinyl benzene, a -methyl styrene, p-methyl styrene, ethyl vinyl benzene, vinyl naphthalene and p-chlorostyrene.  In examples, 25 ml. portions of styrene stabilized with 1 per cent of di-(p.t.-butyl catechol)-monosulphide, di-catechol monosulphide, di-m-cresol monosulphide, di-thymol monosulphide, or the monosulphide of catechol monobenzyl ether are maintained at the temperature of boiling water for 20 hours with little polymerisation and samples of styrene containing 0.01 per cent of di - (p.t. - butyl catechol) - monosulphide, di - m - cresol - monosulphide, di - o - cresol - monosulphide, di-thymol monosulphide, di-(p.t.-m-cresol)-monosulphide or di-carvacrol monosulphide are stored for 41 months without apparent change.
Patent GB-1329215-A (GB)
Title: Preparation of ethylene telomer waxes
IPC: C08F2/00
Filed: 1972-02-22
Abstract: 1329215 Ethylene telomer waxes ALLIED CHEMICAL CORP 22 Feb 1972 [2 March 1971] 8113/72 Heading C3P Ethylene telomer waxes are prepared by reacting ethylene and at telogen in the vapour phase at elevated temperature and pressure in the presence of t-butyl peracetate, t-butyl peroctoate, 1-cyano-1-t-butylazo cyclohexane, 2- t-butylazo isobutyronitrile and/or 2-butylazo 2-phenylpropane, the conversion being main-  tained at 55 to 75%. The telogen may be an alcohol, ether, ketone, ester, acid, aldehyde or aromatic hydrocarbon, preferably isopropanol or acetone. Comonomers, e.g. unsaturated acids, acid halides, amides and esters, particularly acrylic acid, methacrylic acid or methylmethacrylate, may also be present. Examples describe the preparation of telomers from (1 and 2) ethylene and (3) ethylene and acrylic acid using isopropanol and the above catalysts and for comparison di-t-butyl peroxide.
Patent GB-774532-A (GB)
Title: Improvements in the treatment of soapstock
Inventor: LEE WILLIAM VICTOR
IPC: C11B13/02
Filed: 1954-03-19
Abstract: Soapstock which contains phosphatides is treated by dispersing a protein in the soapstock, splitting the soapstock with acid, and then allowing the resultant mixture to settle into a fatty matter layer and an aqueous layer.  The term "soapstock" includes soapstock obtained from alkali refining of animal and vegetable oils, and also "foots" from oil-processing works and "lecithin sludge," a distillation residue from the solvent extraction of oils.  The protein is preferably casein in the form of skim or powdered milk or sodium caseinate, but may also be groundnut protein, soya protein, blood albumen or plasma, egg albumen or gelatine, and may be added either as such in quantities greater than 0.01 per cent, preferably 0.05-0.3 per cent, or alternatively in the form of a mucilage made from protein meal and caustic soda solution.  Suitable protein meals for making such a mucilage are blood meal, herring meal, meat and bone meal, fish meal, and extracted groundnut meal, and such meals are generally added in amounts of about 0.5 per cent based on the soapstock.  The acid to be used in splitting the soapstock after adding the protein is preferably sulphuric acid in slight excess, but may also be hydrochloric, nitric, phosphoric, acetic, citric or oxalic acid. The separation of the treated soapstock into layers occurs in a matter of minutes, as compared with several hours required when protein is not added.
Patent GB-907066-A (GB)
Title: Process for the removal of aromatic impurities from liquid phenyl methyl polysiloxanes
IPC: C07F7/20
Filed: 1961-03-06
Abstract: Aromatic impurities are removed from liquid phenylmethyl siloxanes by mixing the impure siloxane with a dihydric alcohol or an oxyalkylene diol and separating the alcohol or diol, together with the impurities, by distillation.  In the example, a mixture of impure liquid phenylmethyl siloxanes is mixed with diethylene glycol and the resulting mixture is distilled under reduced pressure until the glycol has been distilled off.  The residue is then washed with saturated NaCl solution and filtered through a layer of anhydrous CaCl2 admixed with activated C.  The distillate was then treated to recover a further quantity of siloxane and to free the glycol of impurities for further use. Propylene glycol and ethylene glycol may also be used. Specification 907,065 is referred to.
Patent GB-788212-A (GB)
Title: Production of phthalic acids
IPC: C07C51/265
Filed: 1956-03-15
Abstract: Phthalic acids are obtained by a process comprising the steps of oxidizing a xylene with air to produce a toluic acid, oxidizing an ester of a toluic acid and an alkanol containing not more than 3 carbon atoms to produce a phthalic acid monoester, heating the toluic acid and the phthalic ester in a conversion zone to produce a phthalic acid and an ester of the toluic acid and the alkanol, separating the phthalic acid and the toluic ester, and returning the ester for further oxidation.  The process is particularly suitable for the production of isophthalic and terephthalic acids, the appropriate isomers of xylene and toluic acid esters being used. Preferably, a methyl toluate is used but ethyl, propyl and isopropyl esters may be used if desired.  The oxidation of the xylene is preferably carried out below 400 DEG  F., e.g. within the range of 200-400 DEG  F., and at a pressure sufficient to maintain the xylene in liquid phase.  Oxidation of the xylene may be assisted by the presence of a catalyst consisting of an oil-soluble salt of a polyvalent metal such as manganese or cobalt.  The toluic ester may be oxidized at 300-500 DEG  F. under a pressure sufficient to maintain the ester in liquid phase and preferably in the presence of a salt of manganese or cobalt.  The conversion zone in which the phthalic acid is produced is preferably maintained above 300 DEG  F. e.g. in the range of 300-600 DEG  F.  The xylene and the toluic ester may be oxidized separately or together.  Examples describe the production of a mixture of phthalic acids, mainly isophthalic and terephthalic acids, using xylene and methyl toluate feeds consisting of mixtures of isomers containing about 83 per cent of the meta-isomer and 11 per cent of the para isomer.  Spent air and vapours from the xylene oxidation zone are cooled so as to condense water, xylene and small amounts of toluic acid.  The aqueous phase is withdrawn and the xylene phase is returned to the oxidation zone. The oxidation product is passed to a separation zone where the product may be cooled to precipitate solid toluic acid. Alternatively separation may be effected by fractional distillation, the kettle product consisting predominantly of toluic acid.  In the conversion zone, methyl toluate is removed from the product by evaporation and passed back to the methyl toluate oxidation zone. Toluic acid containing dissolved phthalic acid is removed from the conversion zone and cooled to about 250 DEG  C. so that a slurry of solid phthalic acid in liquid toluic acid is produced.  The slurry is filtered and the toluic acid is returned to the conversion zone.
Patent GB-912085-A (GB)
Title: Quinazolone derivatives
IPC: C07D/
Filed: 1961-03-07
Abstract: Resinates of 4-quinazolones of the general formula <FORM:0912085/IV(a)/1> (wherein R represents hydrogen or an alkyl group of 1-4 carbon atoms) are prepared by stirring the quinazolone base with a suspension of a cation exchange resin, e.g. a sulphonic acid cation exchange resin or a carboxylic acid ion exchange resin in the hydrogen form.ALSO:The invention comprises compounds of general formula <FORM:0912085/IV (b)/1> wherein R is hydrogen, or alkyl (1 to 4 carbon atoms), and their pharmaceutically acceptable acid-addition salts (including salts formed with ion-exchange resins), the preparation thereof by condensation of an o-acylamidobenzoic acid with o-, m-, or p-aminobenzotrifluoride in the presence of an inorganic phosphorus halide catalyst, and pharmaceutical compositions containing the compounds.  The compounds may be administered as muscle-relaxants and antispasmodics, either alone or with a pharmaceutical carrier, and administration may be oral (e.g. as tablets, capsules, elixirs, or suspensions) or parenteral (e.g. intramuscular administration of the free bases or their common salts).
Patent GB-1259907-A (GB)
Title: A method of investigating electronic paramagnetic resonance
Inventor: BRESLER SEMEN EFIMOVICH
IPC: G01R33/60
Filed: 1970-02-20
Abstract: 1,259,907. Electron resonance spectrometers. INSTITUT VYSOKOMOLEKULYARNYKH SOEDINENY AKADEMII NAUK SSSR. Feb. 20, 1970, No. 8344/70. Heading G1N. In an electron paramagnetic resonance spectrometer the sample to be investigated is placed in a cylindrical, square or spherical cavity excited with plane-polarized micro-waves from a waveguide 2, a pick-up waveguide 4 being decoupled from waveguide 2 in the absence of E.P.R. and coupled to the waveguide 2 when E.P.R. occurs producing rotation of the plane of polarization of the micro-waves in the cavity which is angledegenerative. The axis of the cavity is perpendicular to the polarizing field Ho and the magnetic vector of the exciting micro-wave field is preferably at 45 degrees to Ho.
Patent GB-374941-A (GB)
Title: Improvements in apparatus for cooling oils or other liquids
IPC: F28F5/02
Filed: 1931-03-18
Abstract: 374,941. Cooling oil &c. ; hollow cylinders. ELLIS, H. W., 55, Chalk Hill Road, Wembley Park, Middlesex, and BOTTOMLEY, R. W.; 59, Belmont Road, Ilford, Essex. March 18, 1931, No. 8391. [Classes 29 and 34 (i).] Apparatus for cooling engine lubricating oil or other liquids comprises cooled surfaces having relative rotary movement and between which the oil &c. is passed in a very thin layer, and scrapers for removing the oil, still in a liquid condition, from both surfaces. Preferably the surfaces comprise an internally cooled rotary drum 1 within a cooled cylindrical casing 2 separated by a very narrow oil space 3. The drum is fitted with an inner drum 11 and its wall is provided with deep and shallow helical ribs 23, 22 forming a winding channel for cooling-water &c. from an axial inlet 8 to an axial outlet 9, the outlet leading to a channel 53 in an end cover 26 of the casing. The casing is provided with longitudinal ribs or partitions 40 providing zig-zag channels from an inlet 38 to .an outlet communicating with the channel 53. The oil to be cooled is admitted through a passage 47, Fig. 9, cooled by the circulating water, and a further passage 43 with a widened opening. After flowing around the drum it is wiped off by a scraper 60 and delivered to an outlet branch 61, which may be water cooled. The scrapers engaging the fixed surface comprise spring-pressed strips 57 located in longitudinal recesses in the drum wall, and as they approach the fixed scraper 60 they are depressed gradually by engagement with inclined cam members 63 at the side of the fixed scraper. The water may flow in parallel through the drum and jacket. In a modification the drum surface is divided into sections by circumferential ribs, and the oil traverses the sections in series so as to prolong the treatment. The scraper on the casing is then divided so as to fit between the ribs, while the drum scrapers may be continuous.
Patent GB-678372-A (GB)
Title: Improvements in or relating to cathode ray tube apparatus
Inventor: MCGEE JAMES DWYER
IPC: G01S7/28
Filed: 1949-03-29
Abstract: 678,372. Local viewing arrangements; photoelectric compensating devices. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 29, 1950 [March 29; 1949], No. 8458/49. Addition to 677,983. Class 40 (iii). [Also in Group XL (c)] In the system described with reference to Fig. 2 of the parent Specification, wherein a radar P.P.I. display on a cathode-ray tube 1 is optically projected onto a storage tube 3 the storage element of which is repeatedly scanned by a take-off beam at a greater speed than the picture is laid down on tube 1 and the signals so obtained are fed to a further viewing tube 10 (an arrangement for making the picture intensity more constant overall) spurious signals occur due to the charging of certain storage elements at the same time as others are being partly discharged by the take-off scanning. According to the present invention these spurious signals are counterbalanced by using a photo-cell 12 whose output is dependent on the instantaneous illumination of tube 1 and thus the laying down or charging current to plate 6 of the storage tube and feeding its output signals as shown to cancel out the spurious signals. To avoid parallax errors the cell 12 may comprise an annular cathode and ring anode co-axial with the optical system, Fig. 2 (not shown). In another arrangement the cancelling signals may be derived from an electrode at a positive potential inside the tube 3 arranged to receive the electrons emitted by the storage elements when illuminated.
Patent GB-492713-A (GB)
Title: Improvements in or relating to gas-heated grillers
IPC: A47J37/06
Filed: 1937-03-23
Abstract: 492,713. Grilling &c. stoves. GAS LIGHT & COKE CO., PEARCE, P. H., and DUNNING, E. W. B. March 23, 1937, Nos. 8524 and 9728. [Class 126] A metal grilling-fret used with a multi-teat gas burner comprises a number of open-ended inverted channels 10 along which the flames from the burner may be directed, the channels being separated by outlet openings 11 for the burnt gases and having associated therewith heatradiating elements 29 lying in the path of the flames along the channels. The fret is formed from sheet metal, the channels and openings being formed by slitting the metal sheet and bending over a number of flanges 12. The heat-radiating elements 20 may comprise semicircular, helical coils of heat-resisting iron wire disposed along each channel, or may be formed by projections pressed out or otherwise formed on the walls of the channels. The upper walls of the inverted channels may have external projections 16, to support a cooking utensil. Two gas burners may be arranged at the ends of the channels, or a single burner with two rows of burner teats may be arranged centrally of the fret. A cast-metal shield-plate, which may act also as a hot-plate, may be disposed above the fret, and may be provided with a number of heatconducting or heat-scrubbing members extending between it and the upper walls of the channels. The shield-plate may be flat save for its marginal parts which extend downwardly, and has in the marginal parts apertures for the escape of hot gases. According to the second Provisional Specification, the sheet-metal fret is formed with lugs arranged in rows. Two adjacent rows are formed by cutting a number of transverse slits between two parallel lines, by cutting further longitudinal slits joining the ends of alternate pairs of slits, the longitudinal slits on one line being staggered relatively to those on the other, and by bending alternate rows down at an angle on both sides of a line centrally between the two parallel lines. Two such frets may be arranged, one on each side of a burner with two rows of orifices. The shield-plate, which is similar to that described in the Complete Specification, may have sides and a bottom to form a box with a front opening for the insertion of food to be grilled.
Patent GB-560898-A (GB)
Title: Improved oil cooler for aircraft or other vehicles
IPC: F16N39/02
Filed: 1942-06-22
Abstract: 560,898. Cooling radiators for aircraft &c. BELAIEFF, J. F., DELANEY, C. T., and GALLAY, Ltd. June 22, 1942, No. 8525. [Class 64 (iii)] Oil entering a cooler through inlet d flows between the cooling tubes in two paths, a long path backwards and forwards around longitudinal baffles a, b, c, and a short path through orifices g, k in the baffles and directly to an outlet into a jacket through which the oil flows to an outlet n. When the temperature of the oil drops, more oil flows through the direct path'thus slightly warming the air flow and helping to avoid " coring." At very low temperatures, the increased oil pressure opens a loaded valve l to allow the oil to flow directly into the jacket. The valve may be dispensed with and oil allowed to enter the jacket through small orifices in the outer wall adjacent the oil inlet.
Patent GB-1019274-A (GB)
Title: Wheel balancer
Inventor: HEMMETER GEORGE THIEMEYER
IPC: G01M1/28
Filed: 1963-03-04
Abstract: 1,019,274. Balancing wheels. BISHMAN MANUFACTURING CO. March 4, 1963, No. 8537/63. Heading G1X. In a device for attaching to a jacked up vehicle wheel which is then rotated, and unbalance is corrected by moving a counterweight radially and polarly with respect to the wheel so as to indicate the amount and position of weights to be added to the vehicle wheel to achieve balance, the counterweight is in the form of two eccentric discs 209, 221, Fig. 11 of equal weight rotatably mounted on a central hub. The base plate 26, Fig. 3, is connected by bolts 24 to an adaptor of suitable shape for securing to the particular wheel 6 to be balanced and is centred by four spring pressed lugs 54. A central hub 71 normally rotates with the base plate 26 and wheel 6 but on pulling or pushing a knob 106 a clutch engages either a forward or reverse gear to cause hub 71 to rotate in one direction or the other relative to plate 26 so that the vibration of the wheel is minimized. Thus since discs 209, 221 are carried by hub 71, the position of an arrow frame covering a window 117 in a shield plate 97 indicates the polar position of balance weights to be placed on wheel 6. On pulling or pushing a knob 151, a clutch engages either a forward or reverse gear to cause discs 209, 221 to rotate equal amounts in opposite directions relative to hub 71 and when vibration of the wheel has been eliminated, the position of an upstanding rim of disc 209 in calibrated window 117 indicates the magnitude of the balance weight to be added to wheel 6. The discs 209, 221 are as shown, circular but could have a logarithmic contour in order to make the scale, in window 117, linear. An approximate relative location of the discs 209, 221, may be seen by coloured raised portions 237 through openings 236 in shield plate 97.