baber/WOPTO huggingface dataset:
Patent GB-1007815-A (GB)
Title: Preparation of ethylenically unsaturated compounds
IPC: C07D207/267
Filed: 1961-11-03
Abstract: Halo-olefins, e.g. polychloroprene, having at least one <FORM:1007815/C3/1> group in which X is halogen are reacted with a carboxylic acid in the presence of a Group VIII metal salt in which the metal has an atomic number of at least 44 and a hydrogen halide acceptor which does not form water upon reaction with hydrogen halide. Palladium, platinum, rutherium, indium, rhodium, and osmium are the metals and the salts include halides, acetates, sulphates, nitrates, cyanides, and complex salts.  The haloolefines include polychloroprene which may be reacted with the carboxylic acid to incorporate the reactive ester radicals.  Acids listed are formic, acetic, propionic, butyric, isobutyric, oleic, hexanoic, octanoic, lauric, acrylic, vinylacetic, benzoic, cinnamic, phenyl acetic, methylacetyl silicylic, p-methoxybenzoic, malonic, adipic, salicylic, pimelic, phthalic, terephthalic, and p-chlorobenzoic acids.ALSO:Ethylenically unsaturated esters, e.g. vinyl, isopropenyl, and butenyl esters, are prepared by reacting a halo-olefine having at least one <FORM:1007815/C2/1> group in which X is halogen, with a carboxylic acid under anhydrous conditions in the presence of a Group VIII metal salt (in which the Group VIII metal has an atomic number of at least 44 and a hydrogen halide acceptor which does not form water upon reaction with hydrogen halide.  The halo-olefines may be substituted and unsubstituted aliphatic, acyclic or alicyclic compounds, for example, vinyl or vinylidene chloride, di-, tri- or perchloroethylene, vinyl bromide, 1-bromo-propene, 1-bromo-hexene-1, 2-chloropropene, 1 - chloro - 2 - methyl - propene, 2 - chloro - 3 - phenyl - propene, 1 - chloro - 1 - fluoro - ethylene, 2 - chloro - 1 - butene and 1 - chloro - 1 - butene, 2 - chlorobutadiene - 1,3, and high molecular material such as polychloroprene. The carboxylic acids mentioned are formic, acetic, propionic, butyric, isobutyric, oleic, hexanoic, octanoic, lauric, acrylic, vinyl acetic, methylacetyl salicylic and p-methoxybenzoic acids together with malonic, adipic, salicylic, pimalic, phthalic, terephthalic and parachlorobenzoic acids.  Palladium, platinum, ruthenium, iridium, rhodium, and osmium are the metals and the salts include halides, acetates, sulphates, nitrates, cyanides and complex salts.  They may be unsupported or on a carrier or diluent and added as such or as a preformed complex with the halo-olefine.  The hydrogen halide acceptor may be the alkali metal or alkaline earth metal hydrogen phosphates, or a salt of carboxylic acid such as sodium acetate. An example describes the preparation of vinyl acetate and other vinyl esters are listed.
Patent GB-1313419-A (GB)
Title: Television amplifier circuits
IPC: H04N9/64
Filed: 1970-08-18
Abstract: 1313419 Televisions RCA CORPORATION 18 Aug 1970 [25 Aug 1969] 39679/70 Heading H4F The description is substantially the same as that of Specification 1,313,420 but the claims differ.
Patent GB-843904-A (GB)
Title: Improvements in and relating to electrical heating elements
Inventor: KWATE BERNARD
IPC: H01B1/16
Filed: 1958-12-10
Abstract: 843,904. Heating resistors. THERM-O-LAB CORPORATION. Dec. 10, 1958, No. 39889/58. Class 39(3). [Also in Group XXIII] A heating element comprises conductive metal particles predominantly nickel embedded in equal proportions in glass 10 fired on vitreous enamel 11 previously bonded on a metal base 12. The thermal expansion of the glass 10 is arranged to be the same as the base 12. The metal particles may comprise a large proportion of nickel and a small proportion of iron. The base 12 may be of mild steel or an aluminium containing metal. The glass frit may be composed of oxides of silicon, lead, barium sodium, potassium aluminium, titanium, zirconium, lithium, calcium barium or silicon, boric acid, and sodium carbonate or Feldspar and carbonates of lithium, sodium oxides of lead, silicon, titanium, potassium nitrate and zirconium silicate. Another glass may be composed of oxides of lead, silicon, titanium and lithium and sodium carbonate, zirconium silicate and potassiurri nitrate.
Patent GB-924131-A (GB)
Title: Improvements relating to pulse forming networks and delay lines
Inventor: DODDS JOHN MATIESON
IPC: H03H7/34
Filed: 1957-12-23
Abstract: 924,131. Pulse delay networks. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 20, 1959 [Dec. 23, 1957], No. 39908/57. Class 40 (8). [Also in Group XL (c)] A pulse forming network or delay line device includes two or more metallic strips 2a, 1, 2b placed one over the other and wound spirally with interleaved sheet insulating material 3, 4, and connections to at least one end of each strip, the strips having both inductance and capacitance, the lengths of the strips being proportional to the transit time of the network or delay line, and one at least of the strips 2a, 2b extending laterally beyond or around another strip 1 to screen it. There can be a connection 5 to the outer end of strip 1, a connection 6 to the inner end of strip 1, a connection 7 to the common outer end of the strips 2a and 2b and a connection 8 to the common inner end thereof to form a 4-terminal network. A magnetic core 9 can be threaded through the centre of the device to isolate the inside terminals 6 and 8 from the outside terminals 5 and 7. The strips 2a and 2b can be secured together along one or both edges, e.g. by soldering. In the absence of a magnetic core the insulation 4 between adjacent turns of the strips 2a and 2b can be omitted. In the construction shown in Fig. 6 a narrow strip 1 and a wide strip 2 are used, the edges of the strip 2 being bent radially of the winding either inwardly or outwardly so that they overlie. The edges of the strips 2 may be soldered together. In the arrangement shown in Figs. 8a and 8b a magnetic core 9 isolates the two ends of the windings 1 and 2 so that the device can be used as a phase reverser, as a component of a transformer or as a component of a multi-stage pulse generator. Fig. 8a shows a common earth connection of both ends of the winding 2 (the core 9 then being unnecessary) and Fig. 8b shows the output reversed in phase. In Fig. 9 the device shown in Fig. 1 is used as a pulse forming network PFN which is charged through a choke H and rectifier D and discharged through the load by triggering a discharge valve V. Connections are made to either both inner or both outer terminals of PFN, the other terminals being left opencircuited apart from the possibility of joining the strips 2a and 2b together. Fig. 10 shows how two such devices can be employed in a pulse generator of the kind described in connection with Figs. 3 and 4 of Specification 589,127 and in Specification 880,525. The delay lines DL1 and DL2 are initially charged and the switch S is closed to generate a pulse. In the arrangement shown, only the left-hand side of the load can be earthed but if DL1 is fitted with a magnetic core then either side of the load can be earthed and pulses of either polarity can be generated.
Patent GB-1119054-A (GB)
Title: Measurement for temperature by radiation
Inventor: BETTS WILLIAM EDWARD
IPC: G01J5/52
Filed: 1964-10-01
Abstract: 1,119,054. Radiation pyrometry. GAS COUNCIL. Sept. 28, 1965 [Oct. 1, 1964], No. 39918/64. Heading G1A. Apparatus for measuring the temperature of a body 5 in an enclosure 6 comprises a first radiation pyrometer 7 sighted on the body and a second pyrometer 9 sighted on the inside of the enclosure and means for subtracting a predetermined fraction of the signal from the pyrometer 9 from that of the pyrometer 7 to correct the latter to measure the temperature of the body independently of the enclosure. The pyrometer 9 is preferably sighted on a point such that radiation from it passing along the path 18 specularly reflected from the body 5 is directed towards the pyrometer 7. As shown, the output from the pyrometer 9 is developed across the series of resistances R1, R2, R3, R4, and fraction appearing across R3 and the part X of R4 is connected in opposition to the output of the pyrometer 7 to give a corrected output at the terminals 15. The fraction X is selected in accordance with the emissivity of the body 5. The resistance R1 may be short-circuited by a switch 17 to accommodate a larger range of emissivities.
Patent GB-341251-A (GB)
Title: Improvements in or relating to the metallic construction of airplanes
IPC: B64C3/00
Filed: 1929-12-31
Abstract: 341,251. Aeroplane wings. NIEUPORT-ASTRA, 50, Boulevard Gallieni, Issy-les-Moulineaux, Seine, France. Dec. 31, 1929, No. 39923. Convention date, Jan. 2. [Class 4.] In metal wings of the type having a metal covering composed of thin metal panels d, the width of which is equal to the distance between two adjacent main ribs a of the wing framework and which panels are strengthened on their inner face by spars e, the metallic elements connecting the ends of the rectilinearly abutting spars of two adjacent panels are formed with sole pieces f which extend a substantial distance along the spars and are riveted to them. The main ribs a, Fig. 1, are beaded at their outer edges b around a wire or spring c. Sole pieces f are placed either above or between the panel d and spars e. They are extended at points coinciding with the positions of spars e, Fig. 1, or are reinforced by gussets at these points. Their outer edges g are shaped to fit round the bead b and interconnection is effected by beading a semi-tubular member h around the whole assembly. Fig. 4 shows a modification in which angle-strips i are riveted to the borders f and adjacent panels are connected by riveting .together the strips i of each panel and a straight projecting portion of rib a.
Patent GB-888734-A (GB)
Title: Improvements in or relating to devices for the adjustment of the air gap of a magnetic head
IPC: G11B5/48
Filed: 1960-11-21
Abstract: 888,734. Magnetic recording heads. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 21, 1960 [Nov. 24, 1959], No. 39953/60. Class 40 (2).  Adjustable mounting of a magnetic head is accomplished in several planes by means of a U-shaped mounting bracket 3, suspended, under tension of a leaf-spring 8, on a shaft 5 journalled in elongated apertures 15. Adjustment to bring the magnetic gap 2 normal to the direction of travel of the record medium is accomplished by adjusting screw 9, while adjustment to bring the gap uniformly against the width of the medium is effected by adjusting one or other of screws 16. By adjusting both screws 16 simultaneously in the same direction the lateral position of the head in relation to the medium is effected.
Patent GB-1210736-A (GB)
Title: Pre-treatment in non-electrolytic plating
IPC: C23C18/24
Filed: 1968-08-21
Abstract: 1,210,736. Coated substrates. FUJI SHASHIN FILM K.K. 21 Aug., 1968 [22 Aug., 1967], No. 40030/68. Heading B2E. [Also in Division C7] An insulating base substance is pre-treated preparatory to non-electrolytic plating by applying a first layer consisting mainly of a soluble polyester polymer, coating an organic solvent dispersion of gelatin on to the first layer, treating the second layer, thus formed, with a mixed solution of sodium, potassium or ammonium bichromate and sulphuric acid or chromic anhydride and sulphuric acid and then washing with water to remove the second layer. The based substance may be a plastics material or a porcelaine and the polyester may be dissolved in an organic solvent or mixed with a cellulose ester. The base substance may then be plated either with copper or nickel.
Patent GB-1435856-A (GB)
Title: Ink drop printer
IPC: B41J2/08
Filed: 1974-09-17
Abstract: 1435856 Ink-drop printers INTERNATIONAL BUSINESS MACHINES CORP 17 Sept 1974 [27 Sept 1973] 40346/74 Heading G4H In an ink jet printer, an ink drop charging signal has values chosen to correct charge induction errors (incorrect charging of a drop due to the charges on adjacent previously charged drops) and flight interaction errors (due to electrostatic repulsion between drops and aerodynamic drag reduction). The flight correction is only performed if the subject drop is charged. A clock driven counter specifies the matrix scanning order of the drops to build up a character, adjacent drops never being printed adjacent to each other to maximize in-flight distance between successive drops to reduce interaction. Information signals (supplied to a shift register and specifying for each drop whether it is to be charged or not) and the counter produce the charging signal from circuitry which can take various forms (described) variously involving read-only stores, decoders, analogue gates (with weighting) D/A converter (with appropriate gains) digital and analogue adders, and stores. This circuitry can be multiplexed between a row of ink streams each printing in two adjacent character positions along a line of print.
Patent GB-1533517-A (GB)
Title: Point attack bit
IPC: E21C35/18
Filed: 1977-09-29
Abstract: 1533517 Mineral-mining; point attack pick G W ELDERS 29 Sept 1977 40487/77 Heading E1F Positive rotation of a point attack pick in a holder 10 is caused by the passage of mined mineral along the circumferentially spaced, rearwardly diverging vanes 24 extending longitudinally of the head 17 of the pick.
Patent GB-1469028-A (GB)
Title: Comminution of solids
IPC: B02C23/02
Filed: 1974-09-17
Abstract: 1469028 Agitator mills ENGLISH CLAYS LOVERING POCHIN & CO Ltd 12 Sept 1975 [17 Sept 1974] 40551/74 Heading B2A An agitator mill comprises a grinding chamber 1 Fig. 1 which may have a rubber lining with a rotatable impeller 16 which includes round bars 18 having hardened surfaces of heat-applied tungsten carbide, a feed slurry inlet means, an outlet, a sieve 12 Fig. 4 arranged when the mill is in use to be below the surface of the media/slurry mixture, and first control means viz valves associated with the inlet and or outlet to control the relative volume flow ratio of feed slurry and ground product slurry, and second control means viz an on-off valve 34 associated with the outlet and responsive to changes in the volume ratio of media to slurry in the grinding chamber for stopping or starting the flow of ground product slurry through the outlet. The media/ slurry ratio in the grinding chamber is in the range 0.5:1 to 1.5:1 and the media particles range from 0.15 to 20.0mm and may be silica sand or marble chips or granules. As described, the inlet means includes a tank 23 divided by a partition 24 into compartments 25, 26. Flow into compartment 25 is controlled by a valve 27, surplus flowing away via a conduit 28; and the flow rate to the mill is controlled by a valve 30. Water is supplied to the grinding chamber 1 via a conduit 39. Discharge is controlled manually by a valve 33 and automatically by the valve 34. When this is closed the slurry increases in the grinding chamber reducing the media/slurry ratio and thus the current drawn by the drive motor 19 Fig. 1. This fall is sensed by a twostep controller 37, which controls an actuator 38 and the valve 34 is opened again and the motor current rises until the sensor detects the upper current lever and closes the valve. During the valve open phase of the cycle the sieve is cleaned by a washing action of the impeller tips agitating the slurry. The impeller is periodically reversed to equalize wear. Examples of comminution of marble or chalk with a sodium polyacrylate dispersing agent are given.
Patent GB-856024-A (GB)
Title: Improvements in and relating to expansible cartons
IPC: B65D5/355
Filed: 1958-12-17
Abstract: 856,024. Expandable cartons. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 17, 1958 [Dec. 20, 1957], No. 40736/58. Class 18. An expandable carton for e.g. tabulating cards is formed from a blank as in Fig. 7 in which side walls 22, 24 are folded up from a bottom panel 26, flaps 66, 68 extending from the side walls being folded in along creases 67 or 90 or any intermediate line, and an end panel extending from the bottom panel 26 is folded up along creases 86 or 87 or any intermediate line while a cover panel 70 extending from the end panel is folded at 90 degrees to it along creases 88 or 89 or any intermediate line. The carton's opposite end is formed by folding in flaps 62, 64, folding up an end panel 30 along heavily scored crease area 27, 28 and folding an extension 36 at 90 degrees to the end panel 30 after bending in locking ears 42, 44 of which the shoulders 54, 56 provide a means to lock the carton erect. When the carton is folded to maximum length, Fig. 4, ears 80 and 82 are folded outwardly to lock the cover frictionally, at minimum length they serve merely as continuations of the cover side walls. Slits 94 and 97 in the blank enable these ears to be folded at any point along their length.
Patent GB-1222738-A (GB)
Title: Polymer compositions including fire retardants
Inventor: RHYS JACK AUBREY
IPC: C08K5/138
Filed: 1968-08-27
Abstract: 1,222,738. Fire retardant compositions. BERK Ltd. [9 Aug., 1969 [27 Aug., 1968], No. 40981/68. Headings C3B and C3P. A polymer composition comprises an organic polymer and, as a fire retardant, at least one metal salt of a halogenated phenol, wherein the metal is a metal of any of Groups I to V of the Periodic Classification of the elements and the halogen is chlorine and/or bromine, the amount of the metal salt being such as to provide a total halogen content of the fire retardant of at least 1À4%, based on the weight of polymer. In the examples the compositions comprise an acrylonitrile-butadiene-styrene copolymer, an isophthalic unsaturated polyester resin, an epoxy resin, barium pentabromophenate, magnesium pentabromophenate, zinc pentachlorophenate, lead tribromophenate, magnesium pentachlorophenate, antimony oxide, benzoyl peroxide/ plasticizer paste, calcium carbonate, fibre glass mat, and a modified amine curing agent.
Patent GB-1522696-A (GB)
Title: Circular knitting machines
IPC: D04B15/48
Filed: 1975-10-07
Abstract: 1522696 Knitting-machines H H KRENZLER 7 Oct 1975 [11 Oct 1974] 41000/75 Heading D1C  To reduce tension in the yarn when forming stitches on a circular knitting machine the yarn feeder, suitably a pneumatic nozzle 17, forms for each needle prior to lowering thereof a reserve loop of yarn 18A -preferably of the length required for forming the stitch, such loop being supported by a member 20. Sinkers may participate in forming the reserve loops.
Patent GB-1222023-A (GB)
Title: An electrochemical device
IPC: G01N33/20
Filed: 1968-08-28
Abstract: 1,222,023. X-ray apparatus. CENTRO SPERIMENTALE METALLURGICO S.p.A. 28 Aug., 1968 [6 Sept., 1967], No. 41139/68. Heading H5K. [Also in Division C7] A disc-shaped sample 40 is mounted on the goniometer of an X-ray diffractometer. The sample is pressed against a "Teflon" (Trade Mark) block 23 by a spring-loaded forked pin. Screws 20, 21 allow vertical and horizontal centring of the test surface of the sample with respect to the incident ray 22. The spring-loaded forked pin is rotatable to bring different areas of the sample into position for examination.
Patent GB-904112-A (GB)
Title: Improvements in or relating to heparine and derivatives thereof
Inventor: NOMINE GERARD
IPC: C08B37/10
Filed: 1958-12-19
Abstract: Sodium heparinate is prepared by a process comprising precipitating a quaternary ammonium salt of heparin, which salt is insoluble in water but soluble in a number of polar organic solvents, dissolving this salt in such a solvent, converting this salt into crystalline potassium heparinate by double decomposition with a potassium salt of a weak organic acid and converting the potassium salt into sodium heparinate by passing an aqueous solution of the potassium heparinate through a cation exchange resin column, neutralizing the filtrate with sodium hydroxide solution and precipitating sodium heparinate by the addition of a water miscible solvent in which sodium heparinate is insoluble. Alternatively, the quaternary ammonium heparinate may be converted directly to the sodium salt by double decomposition. The following compounds prepared in the above scheme are claimed per se: crystalline potassium heparinate; benzyl dimethyl 2-[2-(p-1,1,3,3 - tetramethylbutylphenoxy)ethoxy] ethyl ammonium heparinate; an alkyltolylmethyl trimethylammonium heparinate in which the "alkyl" radical has from 9 to 15 carbon atoms; dilauryl dimethyl ammonium heparinate; and benzalkonium heparinate.
Patent GB-1072737-A (GB)
Title: Tetrahaloethyl sulfenyl halides
IPC: C07C313/08
Filed: 1963-10-18
Abstract: The invention comprises 1,1,2,2-tetrahaloethylsulphenyl halides.  The compounds are prepared by halogenating a bis-(tetrahaloethyl)-disulphide containing a 1,1,2,2-tetrahaloethyl group and isolating the 1,1,2,2-tetrahaloethyl-sulphenyl halide from the reaction products by means including gas chromatography.  In the example, a mixture of bis-(tetrachloroethyl)-disulphides consisting of bis-(1,1,2,2-tetrachloroethyl) - disulphide, bis - (1,2,2,2 - tetrachloroethyl) - disulphide and CHCl2-CCe2-S-S-CHCl-CCl3 is chlorinated with Cl2 to a tetrachloroethyl sulphenyl chloride reaction product which is separated by gas chromatography into 1,2,2,2 - tetrachloroethylsulphenyl chloride and 1,1,2,2, - tetrachloroethylsulphenyl chloride.  Tetrachloroethylsulphenyl chloride is stated to undergo the following reactions:  (a) Oxidation, e.g. with HNO3, to the corresponding sulphinyl and sulphonyl chlorides; (b) Reaction with a salt of phthalimide or of tetrahydrophthalimide to give N-trichlorovinylmercapto - phthalimide or - tetrahydrophthalimide;  (c)  Reaction with triethyl phosphate to give ethyl chloride and o,o-diethyl s-tetrachloroethyl chloride;  (d) Dehydrochlorination to trichlorovinylsulphenyl phosphite;  (e) Reduction to the disulphide.  Reference has been directed by the Comptroller to the Specifications 951,515 and 949,374.
Patent GB-1094136-A (GB)
Title: Pharmaceutical compositions containing steroids
Inventor: WERDER FRITZ VON
IPC: A61K31/573
Filed: 1964-10-09
Abstract: Steroids of the formula <FORM:1094136/C2/1> (wherein -A-B- is -C(=CHX)-CH2- or -C(CH3)=CH-; X is H, F or Cl; and Y is H, CH3 or F) and their D 1-, D 6- and D 1,6-analogues, and 21-esters of all these compounds are prepared (1) for the 16-methylene and -halomethylene compounds, from the 16b -methyl and -halomethyl-16a ,17a -oxido compounds, by treatment with anhydrous acids; (2) for the D 15-16-methyl compounds, by using aqueous acids in the process of (1); (3) for the 6a -methyl compounds, by catalytic hydrogenation of the 6-dihalomethyl compounds; (4) for the a -fluoro compounds, from the 5a ,6a -oxido-3-ethylenedioxy steroid 21-acylates, by treatment with HF to give the 6a -fluoro-3-keto-D 4-steroids; (5) for the D 4,6-6-fluoro-steroids, by treating the D 4-6a ,7a -oxido-steroids with HF in a solvent to give the 6b -fluoro-7a -hydroxy-D 4-steroids and dehydrating these; (6) for all the steroids of Formula I, from the corresponding 21-unsubstituted steroids, by standard procedures, e.g. via the 21-iodo steroids and steroid 21-acetates; (7) for the D 1-steroids, by chemical or microbiological dehydrogenation of the 1,2-saturated compounds; and (8) for the 21-esters, by esterification of the 21-ols.  Examples illustrate some of these processes and additionally describe (1) the preparation of 6a -methyl-16 - fluoromethylene - 4 - pregnene - 17a ,21 - diol - 3,20 - dione - 21 - acetate by reacting the 3-ethylenol ether of 16-fluoromethylene-4-pregnene - 17a ,21 - diol - 3,20 - dione - 21 - acetate with tetrabromomethane to give 6,6-dibromomethylene - 16 - fluoromethylene - 4 - pregnene - 17a ,21 - diol - 3,20 - dione - 21 - acetate and catalytically hydrogenating and then re-acetylating this; and (2) the preparation of D 4,6-steroids of Formula I by chloranil dehydrogenation of the D 4-compounds.ALSO:Pharmaceutical antiinflammatory compositions in conventional forms for oral, parenteral and topical administration comprise a carrier and a compound of the general formula <FORM:1094136/A5-A6/1> or a 21-ester thereof wherein <FORM:1094136/A5-A6/2> or <FORM:1094136/A5-A6/3> in which X is H, F or Cl and Y is H, F or methyl and which may optionally contain additional double bonds in the 1-, 6- or 1- and 6- positions.  Oral and parenteral unit dosage forms may contain from 1 to 150 mg. of the active compound(s).