baber/WOPTO huggingface dataset:
Patent GB-449245-A (GB)
Title: Cathode ray tube
IPC: H01J29/74
Filed: 1934-10-22
Abstract: 449,245. Cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE, 10, Wiesenweg, Steglitz, Berlin. Oct. 22, 1934, No. 30179. Convention date, Oct. 23, 1933. [Classes 39 (i) and 40 (v)] One or more auxiliary electrodes 6 ... 9 are arranged near the deflecting plates 1, 2 of a television &c. cathode-ray tube in planes different from those of the plates and are so charged that the marginal field of the plates 1, 2 outside the space between the plates is counteracted or neutralized at points near the cathode ray 3 to avoid disturbances of the ray due to the marginal field. The auxiliary electrodes may be arranged in planes parallel to the plates and along both transverse edges of each plate as shown so that the marginal fields of the plates are counteracted both where the ray 3 enters and where it leaves the deflecting region. When the plates 1, 2 are supplied with reverse phase potentials, each auxiliary electrode is connected to the opposite plate. An earthed tube 4 surrounds the plates 1, 2. To supply the plates 1, 2 with potentials of reversed phase, a transformer winding 10, 10<1> with earthed central point may be used, or one plate may be fed from a relaxation oscillation generator through an amplifier valve and the other plate from a phase-reversing valve coupled to a variable tapping on the anode resistance of the amplifier valve, Fig. 3 (not shown). When one plate 1 is earthed through the tube 4 and the other plate 2 supplied with the deflecting voltages, the auxiliary electrodes are either arranged only adjacent to the plate 2 and fed with voltages of phase opposed to the deflecting voltages, Fig. 1 (not shown), or are arranged between the plates 1, 2 adjacent the plate 1 and outside the plates 1, 2 adjacent to the plate 2 and each connected to the opposite plate, Fig. 4 (not shown). Marginal fields transverse to the ray are converted in the latter arrangement to marginal fields which are parallel to the ray and which may be reduced by an apertured diaphragm connected to the tube 4 and traversed by the ray at a distance from the plates 1, 2.
Patent GB-1117514-A (GB)
Title: Improvements in or relating to vapour vacuum pumps
Inventor: CRAWLEY DEREK JOHN
IPC: F04F9/00
Filed: 1966-07-05
Abstract: 1,117,514. Diffusion pump baffles. EDWARDS HIGH VACUUM INTERNATIONAL Ltd. June 9, 1967 [July 5, 1966], No.30195/66. Heading F1E. A diffusion pump comprises a cooled guard ring 5, Fig. 2, closely surrounding the vapour nozzle 1 and extending in the direction of the vapour jet a sufficient distance beyond the nozzle lip to condense an over-divergent portion of the emerging vapour jet, and means for conveying the condensate away from the nozzle assembly. A supporting strut 7 is attached to the lowest point of the guard ring so that the condensate can run along its inclined lower edge to the cooled wall 4. In another embodiment the lower edge (13), Fig. 3 (not shown) of the guard ring is sloped symmetrically about the axis in two planes, wires or struts (14) being attached to each of the lowest points and leading out to the cooled wall. Inclined supports (6) (7) are attached to the upper part of the guard ring. The guard ring may be cooled by a pipe circulating cooling fluid or its outer surface may be treated to increase its emissivity and its inner surface polished. Wires 14 may be arranged to drain fluid from any radiation shield used in conjunction with the guard ring.
Patent GB-1401847-A (GB)
Title: Process for producing formaldehyde copolymer
IPC: C08G2/18
Filed: 1972-06-28
Abstract: 1401847 Polymerisation catalyst UBE INDUSTRIES Ltd 28 June 1972 30220/72 Heading B1E [Also in Division C3] A catalyst for the copolymerization of formaldehyde and cyclic ethers comprises the reaction product of (i) a metal chelate of (a) a metal of Groups I to III or a transition metal and (b) a ligand selected from #-diketones, thio-#-diketones, aromatic hydroxyaldehydes, a condensation product of an aromatic hydroxy aldehyde and a diamine, dibasic acids, amino acids, oximes, 8-hydroxy quinoline and ethylene-diamine tetraacetic acid and (ii) a Lerio acid which is boron trifluoride or an organic complex thereof, a metal halide or an alkyl oxoniumtetrafluoroborate, the ratio of (a) to (b) being 1:2 to 1:20 (or up to 1:2000 when (a) is bis (3-phenylacetylacetone) copper). The catalyst may be prepared by reaction in an organic hydrocarbon, halohydrocarbon or ether solvent with stirring and at a temperature between 0‹C and the boiling point of the solvent. Typical exemplified components are (a) tris (acetylacetone) cobalt, bis (monothioacetylacetone) copper, nickel glyoxime and tetrakis (acetylacetone) thorium and (b) boron trifluoride tetrahydrofuranate, titanium tetrachloride, and triethyloxonium tetrafluoroborate. Acetic anhydride may also be included in the catalyst mixture.
Patent GB-1042912-A (GB)
Title: Electromagnetic wave beam deflector
IPC: G02F1/29
Filed: 1963-07-30
Abstract: 1,042,912. Optical apparatus. THOMPSON RAMO WOOLDRIDGE Inc. July 30, 1963 [July 30, 1962], No. 30232/63. Heading G2J. Materials, such as ruby or a helium-neon mixture, whose atoms have at least two distinct energy levels and whose refractive index varies with changes in the population of atoms at the energy levels, are used to deflect a beam of electromagnetic energy passing therethrough. As shown, Fig. 3, a ruby rod 28 is pumped with light from sources 34, 36 and due to absorption of the light from the side faces to the middle, the density of excited atoms, and thus the refractive index, varies from the side faces to the middle. By varying the intensity of light from sources 34, 36, therefore, a beam of light 50 from source 46, having wavelengths corresponding to the difference in energy levels of the excitable atoms of material 28, may be deflected as desired through an angle α. Interference filters 52 prevent light from sources 34, 36 from mixing with beam 50. In modifications the material 10, Fig. 2,(not shown),is of prismatic form, or in the form of a series of prisms 70, Fig. 6, (not shown), alternating with prisms 68 of similar refractive index but not containing atoms that may be excited, so that a variable population density of excited atoms may be obtained. In a further form, Fig. 5, (not shown), masks 56 are provided along the side face of the material 54 so that as the pumping light spreads out, as shown at 62, after passing through the openings 60 in the masks, a variable population density of excited atoms is obtained.
Patent GB-1235474-A (GB)
Title: Improvements in and relating to filters
Inventor: BERGER OTTO
IPC: B01D33/067
Filed: 1967-06-30
Abstract: 1,235,474. Filter drum. DAVEY PAXMAN & CO Ltd. 1 July, 1968 [30 June, 1967], No. 30232/67. Heading BID. [Also in Divisions E1 and E2] A rotary filter drum has a perforate peripheral surface covered with filter medium 6 which is looped round pairs of rods 8 located in axially extending grooves 3, 4, the rods being forced apart by pins 9-12 so that they are retained in the grooves by engaging under shoulders 5 The drum has a number of grooves, circumferentially spaced around its periphery, and shoulders 5 may be integral parts of the drum, as shown, or may be formed by attaching angle sections into grooves of initially rectangular cross-section. The pins (Figures 2, 3, not shown) each have a cylindrical head 9, with a slot 10 for a screwdriver, and a lower shank with two converging walls 11 and two concave walls 12. The pins are inserted with walls 11 engaging rods 8 and are then turned through 90 degrees to force the rods apart, the rods then seating on walls 12 as shown. Rods and pins are stainless steel or plastics.
Patent GB-724523-A (GB)
Title: Improvements in tensioners for chains, belts and the like
Inventor: BURAWOY ONISSIM
IPC: F16H7/12
Filed: 1951-12-28
Abstract: 724,523. Chain gearing. RENOLD & COVENTRY CHAIN CO., Ltd. Dec. 12, 1952 [Dec. 28, 1951], No. 30338/51. Class 80 (1). A chain tensioning device comprises one or more rollers 2 carried by any anti-friction bearings 6 in bracket arms of a plunger 10 which is urged outwards from a housing 12, one of the arms having a lubricant passage 36 to the bearings of the rollers from the interior of the housing 12 which forms a lubricant reservoir. Specification 724,522 is referred to.
Patent GB-1111611-A (GB)
Title: Improvements in or relating to molluscicidal compositions
IPC: A01N37/40
Filed: 1963-08-01
Abstract: Molluscicidal compositions (see Division A5/A6) comprise as their active ingredient a 3,5-dihalo - 4 - hydroxybenzonitrile. The 3,5 - di-chloro-, 3,5-dibromo- and 3,5-diiodo-4-hydroxy benzonitriles may be prepared by halogenation of 4-hydroxybenzonitrile in hot aqueous solution.  The sodium and ammonium salts of 3,5-diiodo-4-hydroxybenzonitrile and the potassium salt of 3,5-dibromo-4-hydroxybenzonitrile may be prepared by neutralizing an aqueous solution of the 3,5-dihalo-4-hydroxybenzonitrile with the appropriate hydroxide. 3,5-Diiodo-4-acetoxybenzonitrile may be prepared by acetylating 3,5-diiodo-4-hydroxybenzonitrile with acetic anhydride.  The above-mentioned potassium and ammonium salts and acetoxy compound, and also 3,5-difluoro-4-hydroxybenzonitrile, are stated to be new compounds.ALSO:Molluscicidal compositions comprise a 3, 5-dihalo-4-hydroxybenzonitrile or a salt (e.g. an alkali metal, amine or ammonium salt) or ester thereof and a carrier.  The composition may be in the form of a dispersible powder, pellets or granules, preferably containing a bait, or an emulsifiable concentrate.  The carrier must contain a bait, a surface-active p agent, an auxiliary pesticide, a colouring agent, a corrosion inhibitor, an adhesive, an animal oil, a mineral oil (having a boiling range essentially above 200 DEG C.) or a vegetable oil in the following circumstances:-(a) when the 3, 5-dihalo-4-hydroxybenzonitrile is 3, 5-dichloro-, 3, 5-dibromo- or 3, 5-diiodo-4-hydroxybenzonitrile as such or in the form of the acetyl ester thereof and the carrier is a liquid other than an animal oil, a mineral oil (as defined above) or a vegetable oil or (b) when the 3, 5-dihalo-4-hydroxybenzonitrile is the sodium salt of 3, 5-dichloro-, 3, 5-dibromo-or 3, 5-diiodo-4-hydroxybenzonitrile and the carrier is ethanol or aqueous ethanol.  The invention also comprises a method of destroying molluscs or their eggs which comprises applying to a locus at which molluscs or their eggs are present, or are liable to be present, a toxic amount of a 3, 5-dihalo-4-hydroxybenzonitrile as such or in the form of a salt or ester.
Patent GB-191233-A (GB)
Title: Manufacture of derivatives of dihydroisoquinoline
IPC: C07D491/056
Filed: 1921-11-16
Abstract: a  - Acidylaminodihydrocinnamic esters or their substitution products are prepared by treating a -acidylaminocinnamic esters or their substitution products in alcoholic solution with hydrogen under pressure in the presence of a metallic catalyst such as nickel or platinum.ALSO:3 : 4-Dihydroisoquinoline-3-carboxylic esters are prepared by hydrogenizing a -acidylaminocinnamic esters or their nucleal substitution products in solution by hydrogen in presence of a metallic catalyst such as nickel or platinum, and treating the resulting dihydrocinnamic acid derivatives with condensing-agents such as phosphorus oxychloride, pentachloride, or pentoxide.  The parent a -acidylaminocinnamic esters are produced by heating aromatic aldehydes with acidylated glycocines, sodium acetate, and acetic anhydride, and esterifying the resulting azlactones. According to examples : veratralhippuric acid methyl ester in methyl alcohol is shaken with hydrogen under pressure in the presence of nickel, and the resulting b -3 : 4-dimethoxyphenyl - a  - benzolyaminopropionic acid methyl ester is heated with phosphorus oxychloride to give 1 - phenyl - 6 : 7-dimethoxy-3 : 4-dihydroisoquinoline-3-carboxylic acid methyl esters; its hydrochloride, hydrobromide, N-methoiodide, and N-methochloride are described; piperonalhippuric acid methyl ester is similarly hydrogenized to a -benzoylamino-b -piperonylpropionic acid methyl ester, which on boiling with phosphorus oxychloride in toluene solution gives 1-phenyl-6 : 7-methylenedioxy - 3 : 4 - dihydroisoquinoline-3-carboxylic acid methyl ester; its hydrochloride, N-methoiodide, and N-methochloride are described; piperonalpiperonoylglycocine azlactone, prepared from piperonal, piperonoylglycocine, sodium acetate, and acetic anhydride, is boiled with methyl alcohol and soda to give a -piperonoylamino-b -3 : 4 - methylenedioxyphenylacrylic acid methyl ester, which is hydrogenized to a -piperonoylamino - b  - 3 : 4 - methylenedioxyphenylpropionic acid methyl ester, from which by treatment with phosphorus oxychloride 1-31 : 41-methylenedioxyphenyl - 6 : 7-methylenedioxy-3 : 4-dihydroisoquinoline-3-carboxylic acid methyl ester results; its hydrochloride, N-methoidide, and N-methochloride are described; piperonalcinnamoylglycocine azlactone is similarly prepared from piperonal and cinnamoylglycocine, esterified to a -cinnamoylamino-b -3 : 4 - methylenedioxyphenylacrylic acid methyl ester, which is hydrogenized to a -b -phenylpropionylamino-b -piperonylpropionic acid methyl ester, from which treatment with phosphorus oxychloride gives 1-b -phenylethyl6 : 7 - methylenedioxy - 3 : 4-dihydroisoquinoline-3-carboxylic acid methyl ester; its hydrochloride and N-methochloride are described.  The products have therapeutic properties resembling those of hydrastinine.
Patent GB-1003350-A (GB)
Title: Improvements in or relating to suction-head lifting devices
IPC: B25B11/00
Filed: 1964-08-04
Abstract: 1,003,350. Suction lifting devices. MASCHINENFABRIK HASENCLEVER A.G. Aug. 4, 1964 [May 15, 1964], No. 30616/64. Addition to 1,000,800. Heading B8H. A suction lifting cup 14, Fig. 1, is suspended by a ball and socket joint 16 from a lifting device as described with reference to Fig. 2 of the parent Specification and suction is applied to the cup 14 by a conduit 17. The bottom of the cylinder is provided with a cover 13 and the cup has a flexible rim 15. Alternatively the suction cup may be suspended from a lifting cylinder as described with reference to Figs. 1 and 3 of parent Specification. Fig. 2 shows a plurality of cups 14 suspended from a cross-bar 19 and connected to the underside of a piston 2 by conduits 17. Each cup is suspended by links 20 and the cross-bar has a ball and socket joint with the cylinder 1. Handles 22 are provided. The cups may be arranged in a circular or starshaped array on a plate or spider. Suction gauges calibrated in units of weight may be provided on any of the embodiments.
Patent GB-947347-A (GB)
Title: Improvements in or relating to methods of passivating silver
IPC: C25D11/38
Filed: 1961-08-24
Abstract: Silver is passivated by treatment with a solution of one or more of the chromates or bichromates of alkali metals and one or more of the hydroxates of alkali metals while the silver is in contact with a metal member such as aluminium or zinc which forms a galvanic cell with the silver.  The pH of the solution should not be less than 10 and in an example a litre of water contains 25 gms. of chromate and 25 gms. of hydroxide.  The silver may be contacted with the metal member either by suspending the silver in the solution with an aluminium wire or by carrying out the treatment in a barrel which is made of or lined with aluminium. Silver plated copper conductors may also be treated in this way.
Patent GB-1342874-A (GB)
Title: Process for treating an ethylene stream to remove impurities
Inventor: DODD DELWIN EARL
IPC: C07C7/11
Filed: 1972-06-30
Abstract: 1342874 Ethanol preparation SHELL INTERNATIONALE RESEARCH MAAT - SCHAPPIJ NV 30 June 1972 [2 July 1971] 30706/72 Heading C2C [Also in Division C5] Ethanol is prepared by hydration, with a supported phosphoric acid catalyst, of ethylene which is purified by a two-stage scrubbing process, by contacting the ethylene with a first absorbent comprising water (e.g. water or aqueous ethanol or diethyl ether) and then with a second absorbent comprising a lean, heavy hydrocarbon.
Patent GB-828490-A (GB)
Title: Sealing gasket composition and method of making tubular gasket stock therefrom
Inventor: FOSS GEORGE JULIUS
IPC: F16J15/10
Filed: 1957-10-01
Abstract: Butyl rubber tubing for cutting into sealing gaskets is formed by extruding a tube of Butyl rubber stock containing carbon blacks of chain-like particle structure and of substantially discrete globular particle structure, respectively, coating the interior of the tube with a silicone liquid, and thereafter vulcanizing the coated tube. Preferably the rubber stock is prepared by mixing 80 parts by weight of carbon black, containing at least 25 parts of chain-like particle structure, and 100 parts of Butyl rubber, with agitation for about 5 minutes at about 400 DEG F.  An extruded tube of such stock may be vulcanised on a mandrel at 200 DEG  to 400 DEG F. without blistering. The silicone liquid facilitates removal of the valcanized tube from the mandrel.  U.S.A. Specification 2,339,827 is referred to.
Patent GB-1040438-A (GB)
Title: Improvements in and relating to wicket driers
Inventor: COTTERELL JEFFREY
IPC: B41F23/04
Filed: 1963-08-02
Abstract: 1,040,438. Printing-machines. SCREEN PRINTING MACHINERY Ltd. Oct. 27, 1964 [Aug. 2, 1963], No. 30744/63. Heading B6C. [Also in Division F4] A wicket for a wicket conveyer drier adapted to dry screen printed sheets is provided with a cross member to prevent set-off. The crossmember may be fixed diagonally across the two strands of a finger or between the inner strand of a finger and a cross- or supportmember of the finger. The wicket may be stiffened by an additional cross-wire and a further diagonal wire between the inner strand and the said additional cross-wire.
Patent GB-1378548-A (GB)
Title: Spectrally sensitized direct positive silver halide emulsion layers
IPC: C09B23/10
Filed: 1972-06-30
Abstract: 1378548 Methine dyes having a thiazole nucleus linked to the methine chain through the 5-position AGFA-GEVAERT AG 30 June 1972 [2 July 1971] 30760/72 Heading C4P [Also in Division G2] A methine dye used for sensitizing photographic direct-positive silver halide emulsions has one of the formulae where R<SP>1</SP> is saturated or unsaturated aliphatic hydrocarbon group which may be substituted, cycloalkyl or aryl; R<SP>2</SP>, R<SP>4</SP> and R<SP>8</SP> are each H, saturated or unsaturated aliphatic hydrocarbon group or aryl; R<SP>3</SP> is SR<SP>9</SP> or NR<SP>10</SP>R<SP>11</SP>; R<SP>5</SP>, R<SP>6</SP> and R<SP>7</SP> are each H, saturated or unsaturated aliphatic hydrocarbon groups, aryl orcarbalkoxy and R<SP>5</SP> and R<SP>6</SP> may together complete a condensed benzene or naphthalene ring ; R<SP>9</SP>, R<SP>10</SP> and R<SP>11</SP> are each saturated or unsaturated aliphatic hydrocarbon groups or aryl and R<SP>10</SP> and R<SP>11</SP> may also together complete a heterocyclic ring; n is 0 or 1; m is 0 or 1; Anionis an anion, the anion being absent where R<SP>1</SP> or R<SP>4</SP> contains an acid group in anionic form; and Z completes a heterocyclic group containing a 5- or 6-membered heterocyclic ring, the aryl groups and heterocyclic groups completed by R<SP>10</SP> and R<SP>11</SP> and/or Z optionally carrying additional substituents. The formulae of 38 such dyes are given in the Specification.
Patent GB-1018192-A (GB)
Title: Electrolytic hygrometer cell
IPC: G01N27/42
Filed: 1962-08-13
Abstract: 1,018,192. Measuring moisture content electrically. BECKMAN INSTRUMENTS Inc. Aug. 13, 1962 [Oct. 30, 1961], No. 30901/62. Heading G1N. The active portion of an electrode in an electrolytic hygrometer contains rhodium. In Fig. 1, helically-wound rhodium-containing wires 12, 14 are supported by insulating jacket 16, forming a long tube 10, and the exposed portions of the wires are coated with a hygroscopic substance, e.g. P 2 O 5 . The major portion of tube 10 is helically coiled and inserted in a stainless steel casing, then potted. The electrodes may consist of pure rhodium, an alloy of rhodium with platinum, iridium, or osmium, or alternatively only one electrode (the anode) may be of rhodium, the other being of platinum. In a modified construction the electrodes project slightly from the inner surface of the tube. This is achieved by wrapping a pair of rhodium electrodes separated by a pair of copper spacer windings round a mandrel and coating them with an insulating jacket. The copper wires are etched away after removal of the mandrel, and the inner surface is coated with P 2 O 5  as before. A similar device may be constructed with platinum electrodes which are then modified by passing a rhodium plating solution through the device while applying a direct voltage to the electrodes, one of which becomes coated with rhodium. Suitable insulating materials for jacket 16 are glass, polychlorotrifluoroethylene and polytetrafluoroethylene.
Patent GB-253809-A (GB)
Title: Improvements relating to electric lamp holders
IPC: H01R33/965
Filed: 1925-12-08
Abstract: 253,809. Reich, E. Dec. 8, 1925. Holders. - In holders that are made of one piece of insulating material in which holes are formed for the reception of the metal contacts, these holes and contacts are made of conical shape so that the contacts are secured in place by the weight of the holder and lamp. In the construction shown in Fig. 7, for use with screw-cap bulbs, the centre contact is made conical while the outer contact comprises a metal strip 14 conforming to the screw-threads, and formed as a hook at the bottom to engage in a recess in the body of the holder. The construction shown in Fig. 14 is for use with bayonet-cap bulbs. A shade-holder may be formed integral with the lamp-holder, or a shade may rest on the flared lower end of the holder.
Patent GB-887702-A (GB)
Title: Reaction products of epoxylated compositions and process
IPC: C08G59/50
Filed: 1958-09-29
Abstract: A resinous product is made by reacting a conjugated polyolefinic unsaturated compound containing one or more carboxyl or amino groups, with an epoxy compound containing at least two oxirane groups, the reaction being conducted at a temperature and for such a period of time as to insure a Diels-Alder reaction involving at least a part of the conjugated diene system, whereby a cured product is obtained. Specified epoxy compounds are the condensation products of polyhydric polynuclear phenolic compounds with epi- or di-halohydrins, e.g. Epon 828.  In the Examples:- (1) and (2) sorbic acid is reacted in the presence of N,N-dimethyl-a -methyl benzylamine with (1) Epon 828, (2) the reaction product of epichlorohydrin with a phenol-formaldehyde novolak; (3) Epon 828 is reacted with trans, trans-muconic acid in the presence of triethanolamine and (4) Epon 828 is reacted with 5-phenyl-2,4-pentadienoic acid in the presence of diallymelamine.
Patent GB-618088-A (GB)
Title: Improvements in shuttle box swells for looms for weaving
IPC: D03D49/52
Filed: 1947-10-10
Abstract: 618,088. Shuttle swells. GREEN, W. E. Oct. 10, 1947, No. 31009/46. [Class 142(iii)] A shuttle box swell B is in the form of a channel-shaped member projecting through a slot in the box wall and having grooved flanges at its ends to receive the ends of a leaf spring C, and the slot is surrounded by rectangular frame F secured to the wall. The spring pressure is adjusted by a nut d on a screwed rod D mounted on a transverse member f extending across the frame. The screwed rod is nearer to one end of the spring than to the other end to ensure that the pressure on the shuttle increases as the shuttle advances in the box.
Patent GB-423270-A (GB)
Title: Improvements in and connected with lavatory basins adapted to combine with baths
IPC: A47K3/18
Filed: 1933-11-08
Abstract: 423,270. Baths combined with lavatory basins; overflow fittings for lavatory basins. MANCHESTERSLATE CO., Ltd., and KNIGHT, E. F., Fairfield Street, Manchester. Nov.. 8, 1933, No. 31022. [Class 26] In a lavatory basin combined with a bath and having one or more taps d with swivelling spouts adapted either to supply the basin or to be turned to supply the bath through a duct c, the duct serves also as an overflow, the front edge being cut away at c<1> for this purpose.