baber/WOPTO huggingface dataset:
Patent GB-1148955-A (GB)
Title: Selective catalysis
IPC: B01J29/06
Filed: 1967-05-17
Abstract: 1,148,955. Modified zeolites. MOBIL OIL CORP. 17 May, 1967 [17 May, 1966], No. 22961/67. Heading C1A. [Also in Divisions Bland C5] Modified zeolites having a pore size less than 9Š and between the molecular diameters of propylene and propane, are obtained by including therein Pt, Pd, Os, Rh, Ni or Co (after formation, e.g. by ion exchange or impregnation, or during formation) and deactivating the surfaces (e.g. by poisoning the surface with an organic phosphorus compound (numerous compounds specified), by base exchanging the external metal ions with an ion too large to enter the interior such as a tetramethylammonium ion or by complexing the surface ions with EDTA or other agents). The resultant materials are catalytically active for the selective hydrogenation of ethylene in the presence of propylene (see Divisions B1 and C5). Specified zeolites are zeolite A, Barrer's species 5, mordenite, chabazite and gmelinite. In Ex. 4 sodium aluminate solution containing tetramine platinous chloride and sodium metasilicate were poured together into a vessel at room temperature to form a gel which was aged at about 100‹ C. to give a crystalline zeolite. By replacing hydrogen ions present in the zeolite by sodium ions, the pores are reduced to the desired size, and in addition the above mentioned metals may thus be " trapped " therein.
Patent GB-517740-A (GB)
Title: Improvements in or relating to the manufacture of formaldehyde
IPC: B01J23/94
Filed: 1938-08-03
Abstract: 517,740. Catalysts. DISTILLERS CO., Ltd., and FRANCON, J. Aug. 3, 1938, No. 22979. [Class 1 (i)] [Also in Group IV] A nickel catalyst for use in the synthesis of formaldehyde from carbon monoxide and hydrogen is prepared by incorporating in pure nickel a small proportion (up to 5 per cent.) of an activator consisting of zinc, lead, manganese, magnesium, iron or silicon. The activators may be incorporated in the nickel by alloying them with the pure nickel or by adding them mechanically to the nickel, dissolving the mixture in acid, precipitating as hydrates and reducing to the metallic state. The catalyst is maintained in closely packed condition by means of metal rings or spirals embedded therein. Specification 450,449 is referred to.
Patent GB-1176244-A (GB)
Title: Isomerization of Vitamin A Compounds
IPC: A61K31/07
Filed: 1967-05-17
Abstract: 1,176,244. Isomerizing Vitamin A compounds. CHAS. PFIZER & CO. Inc. 17 May, 1967 [8 Nov., 1966], No. 22987/67. Addition to 1,053,574. Heading C2V. Isomers of Vitamin A, and esters thereof, of low biological activity, namely 9 cis, 9, 13dicis, 11cis and 11, 13di-cis isomers, are converted to mixtures of increased activity, mainly Vitamin A and neo-Vitamin A, and esters thereof, by reaction with iodine and a basic amine at 0‹ to 115‹ C. in an inert solvent. The basic amine may be used as a solvent. The iodine may be removed from the reaction mixture with a reducing agent, preferably an alkali metal borohydride. The reaction with the iodine and basic amine also improves the colour, odour and stability of the products of subsequent esterification or transesterification of Vitamin A compounds. In examples, Vitamin A acetate isomers are reacted with iodine and pyridine, the iodine being reduced with sodium borohydride.
Patent GB-1260170-A (GB)
Title: Improvements in or relating to thermally conductive metal heat-exchange walls
IPC: F28F13/18
Filed: 1969-05-06
Abstract: 1,260,170. Making heat exchanger plates. UNION CARBIDE CORP. 6 May, 1969 [14 May, 1968], No. 23011/69. Addition to 1,195,383. Heading B3A. [Also in Division F4] Methods are described of providing in a heat exchange surface, grooves having a restricted outlet therefrom. The grooves are for promoting nucleate boiling at said surface. The groove density may range from 20 grooves to 200 grooves per inch and for all grooves the size of the restricted opening at the outlet therefrom is less than 5 mils (0À127 mm.). The grooves may be formed, as described in the parent Specification (see Division F4), either in their entirety by a single scoring operation, or by scoring to provide the main grooves and then by milling, smashing or knurling overturning the groove edges to provide the restricted outlets.  Or the grooves may be formed (a) by material such as a perforated sheet or screen bonded to a previously grooved wall surface or (b) by placing strands of a decomposible material on the wall surface, casting a layer of non-corrodible metal on said wall over and between said strands, grinding-off to expose the tops of the strands, and then removing the strands by leaching; the resulting cavities comprising said grooves.
Patent GB-384709-A (GB)
Title: Manufacture of new dyes of the iso-rosinduline and rosinduline series
IPC: C09B17/04
Filed: 1931-08-17
Abstract: 384,709. Dyes ; intermediates, DU PONT DE NEMOURS & CO., E. I., Wilmington, Delaware, U.S.A. Aug. 17, 1931, No. 23118. Convention date, Aug. 15, 1930. [Classes 2 (iii) and 15 (ii).] Dyestuffs of the isorosinduline series are prepared by condensing p-nitrosophenylmorpholine with an N-alkyl or aryl #-naphthylamine, which may be substituted in the 6 or 7 position by a monoalkylamino or a monoarylamino group. Dyestuffs of the rosinduline series may be obtained by treating the isorosindulines with ammonia or primary or secondary amines under oxidizing conditions ; the products being sulphonated if desired. In examples : (1) phenyl- #-naphthylamine is refluxed with p-nitrosophenylmorpholine in methyl alcohol to obtain an isorosinduline: (2) the isorosinduline obtained from p-tolyl-#-naphthylamine and pnitrosophenylmorpholine is converted into a rosinduline by condensation with p-aminodiphenylamine, the oxidation being effected by means of air: (3) the isorosinduline obtained from ethyl-#-naphthylamine and p-nitrosophenylmorpholine is condensed with 2 : 4-toluylenediamine: (4) the isorosinduline obtained from sym-diphenyl- 2 : 7-naphthylenediamine and p-nitrosophenylmorpholine is condensed with aniline: (5) the isorosinduline obtained from p-ethoxyphenyl-p-naphthylamine and pnitrosophenylmorpholine is condensed with p-aminodimethylaniline. Instead of the phenyl #-naphthylamine, p-tolyl-#-naphthylamine and the ethyl-#-naphthylamine, the following may be used : o-tolyl, m-4-xylyl, p-methoxyphenyl, p-ethoxyphenyl, o-methoxyphenyl, o-ethoxyphenyl, methyl and n-butyl-#-naphthylamines. The diphenyl-2 : 7-naphthylenediamine used in example (4) may be replaced by the following : di-p-tolyl, di-m-4-xylyl, di (p-methoxyphenyl), di (p-ethoxyphenyl), di (o-methoxyphenyl), and di (o-ethoxyphenyl) 2 : 6- or 2 : 7-naphthylenediamines. These diaryldiaminonaphthylenediamines may be obtained according to the processes of Specifications 14283/86 and 3098/90, [both in Class 2, Acids and salts, Organic &c.], from 2:6- and 2:7-dioxynaphthalene and the corresponding aromatic bases. For the preparation of the rosindulines, the 2: 4-toluylenediamine, p-aminodiphenylamine, aniline and p-aminodiphenylamine may be replaced by the following : toluidines, xylidines, m-phenylenediamines, p-aminophenyl morpholine (prepared by reducing the p-nitrosophenylmorpholine), p-aminomethylbenzylaniline and p-aminoethylbenzylaniline. Nitrated and sulphonated primary amines may also be used, e.g. m- and p-nitroanilines, sulphanilic acid, metanilic acid and p-aminoethylbenzylanilinesulphonic acid (prepared by reducing p-nitrosoethylbenzylanilinesulphonic acid). The isorosindulines dye cotton and acetate silk, blue to violet shades and the rosindulines give similar dyeings with silk, cotton, acetate silk and wool.
Patent GB-149962-A (GB)
Title: Improvements relating to ignition magnetos for internal combustion engines
IPC: H02K21/32
Filed: 1920-08-06
Abstract: 149,962. Fabriques des Montres Zenith, (successors to Fabriques des Montres Zenith G. Favre-Jacot et Cie). Aug. 26, 1919. [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 141,672. Magneto-electric machines.-In ignition magnetos of the type described in the parent Specification, the driving-shaft d of the magneto passes through the crown v of the field magnet a whilst the contact-breaking device j is mounted at the open end.
Patent GB-1081968-A (GB)
Title: Stand construction for portable projection screen
IPC: F16M11/38
Filed: 1966-05-24
Abstract: 1,081,968. Optical projection screens. RADIANT MANUFACTURING CORPORATION. May 24, 1966 [May 24, 1965], No.23191/66. Heading G2J. A portable projection screen has a stand with three or more legs 26 hinged at 28 to a collar 30 which is fixed to column 11, and braced by links 34 which are pivoted at 33 to a sliding collar 32, and at 27 to legs 26, the legs being biased towards the retracted position of Figs. 1 and 3 (not shown) by coil springs mounted on pivots 27 and 28. The legs therefore automatically retract when the stand is lifted. The legs are extended by exerting an outward force on one leg, as by tilting the stand.
Patent GB-797542-A (GB)
Title: Improvements relating to bridge network balance detectors
Inventor: ALLENDEN DENNIS
IPC: G01R17/16
Filed: 1955-08-11
Abstract: 797,542. Bridge measurements. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd. July 31, 1956 [Aug. 11, 1955], No. 23222/55. Class 37. [Also in Group XL (c)] A D.C. excited Wheatstone bridge comprises ratio arms R1, R2, standard resistance R3 and variable resistance G controlled, e.g., by a Pirani vacuum gauge. The base electrodes of transistors TR1, TR2 are connected to the diagonal junctions A,  B of R1, G and R2, R3, while the emitter electrodes are connected to the positive side of the bridge excitation over a high resistance R6 and a microammeter M is connected between the collector electrodes, which are biased over resistances R4, R5 from a source returned to the negative side of the bridge excitation. Unbalance voltage between AB causes corresponding currents to flow in the base/emitter circuits which are amplified by a factor α/1-α, where a is the transistor current gain, and the amplified currents in the collector electrodes deflect the meter to indicate the magnitude and sense of unbalance. If resistance R6 is high by comparison with that over which the base electrodes are fed, the collector currents are stated to be stabilized for temperature variations.
Patent GB-743087-A (GB)
Title: Improvements relating to multiple pumps and hydraulic power transmission systems
IPC: F04C14/02
Filed: 1953-08-24
Abstract: 743,087. Rotary pumps. MOORE, R. J. F. Aug. 24, 1953 [Aug. 25, 1952], No. 23226/53. Class 110(2) [Also in Group XXIX] In a multiple pump of the crescent chamber type described in Specification 453,908 and eomprising a plurality of unit pumps arranged co-axially and havmg a common driving spindle, the inlet compartments or passages of the unit pumps and/or the discharge compartments thereof are interconnected inwardly of the corresponding inlet and outlet ports by a by-pass passage or by corresponding by-pass passages. The pump is as described in Specification 743,088 and is provided with two chambers 28a, 28b each having an end plate 26a, 26b respectively, provided with a circular groove which grooves together form a duct which is closed by plugs 43 adjacent the inlet and discharge chambers of the pumps to form two semi-circular ducts 41, 42. Passages 44a, 44b in the end plate 26a, 26b respectively connect the duct 41 with the interior of cylinders' 28a, 28b respectively. Similarly passages 45a, 45b and duct 42 interconnect the cylinders 28a, 28b i.e. the inlet compartments and outlet compartments of the two pumps are interconnected by the ducts 41, 42. A valve may be provided in one or each passage to restrict or prevent by-pass and non-return valve may also be provided.
Patent GB-720638-A (GB)
Title: Means for supplying a wetting liquid to coal getting machines
IPC: E21C35/22
Filed: 1952-09-17
Abstract: 720,638. Dust suppression means for use in mineral mining machines. EICKHOFF MASCHINENFABRIK UND EISENGIESSEREI, GEB. Sept. 17, 1952 [Sept. 24, 1951 ; Oct. 13, 1951], No. 23292/52. Class 85. Wetting liquid for dust suppression and the medium for supplying energy to a mining machine are delivered to the machine simultaneously through a flexible common pipe that advances, from a fixed supply point, with the machine as it moves along a working. In one embodiment wetting liquid passes through a pipe 2 disposed within a pipe 1 through which air under pressure passes to the machine 10, 11. In a second embodiment the supply cable for the electric driving motor of the machine is disposed within a pipe through which the wetting liquid passes.
Patent GB-884145-A (GB)
Title: Substituted phenolated stabilizer composition
Inventor: HECKER ARTHUR CALVIN
IPC: C08K5/098
Filed: 1958-07-21
Abstract: Synthetic resin compositions comprise polyvinyl chloride or a copolymer of a major portion of vinyl chloride with one or more other monomers such as vinylidene chloride, vinyl acetate, a maleate or fumarate or styrene, a polyvalent metal salt or salts of a hydrocarbon-substituted phenol, the hydrocarbon substituent of which contains from four to twenty-four carbon atoms, and a metal salt of an organic non-nitrogenous monocarboxylic acid containing from six to twenty carbon atoms, other than an unsubstituted monobasic aliphatic acid having its carbon atoms in a straight chain, the salt being other than cadmium naphthenate. The polyvalent metal salt of the hydrocarbon substituted phenol may be the magnesium, barium, calcium, strontium, cadmium, lead, zinc or tin salt of butyl, amyl, octyl, nonyl, decyl, dodecyl, tert. octyl, isohexyl, octadecyl, dibutyl, methyl propyl, diamyl, methyl isohexyl, methyl tert. octyl, dinonyl, didodecyl, o- or p-phenyl, 2-methyl-4-tolyl or p-benzyl phenol.  The metal salt of the organic acid may be the magnesium, barium, strontium, calcium, zinc, cadmium, lead or tin salt of chlorocaproic, hydroxy capric, dodecyl thioether propionic, benzoic, phenyl acetic, butyl benzoic, ethyl benzoic, propyl benzoic, hexyl benzoic, salicylic, naphthoic, 1-naphthalene acetic or orthobenzoyl benzoic acid, a naphthenic acid derived from petroleum or abietic, dihydroabietic, hexahydrobenzoic or methyl furoic acid.  The composition may also include an organic phosphite such as triphenyl, tricresyl, tri(dimethyl-phenyl), tributyl, trioctyl, tridodecyl, dioctyl phenyl, octyl diphenyl, tri(octylphenyl), tri(nonyl-phenyl), tribenzyl, butyl dicresyl, octyl di(octylphenyl), tri(2-ethylhexyl), tritolyl, tri(2-cyclohexylphenyl), tri-alpha-naphthyl, tri(phenylphenyl) or tri(2-phenyl ethyl) phosphite.  A plasticizer such as dioctyl phthalate, dioctyl sebacate, tricresyl phosphate or epoxidized soyabean oil may also be incorporated.  Specification 815,875 also is referred to.
Patent GB-446944-A (GB)
Title: Improvements in finger stalls for surgical purposes
IPC: A61F13/10
Filed: 1935-08-21
Abstract: 446,944. Fingerstalls. SANDER'S CHEMICAL PRODUCTS, Ltd., 43, Regent Street, Loughborough, Leicestershire.-(Sander, E.; 2, Schackstrasse, Munich. Germany) Aug. 21, 1935, No. 23482. [Class 141] [See also Group VI] Protectors for injured fmgers are made from a moderately stiff polymerisate of acrylic acid, or vinyl alcohol, or an ester thereof, and comprise a tubular part a, which is placed on the finger and secured by adhesive tape c, and a bulbous part b attachable to a as by the provision of moulded screw threads on the parts. The part b may contain a viscous or liquid medicament. For example a 20 per cent solution of polymerized acrylic acid ethyl ester, which may contain ¢-1 per cent of a softener such as di-butyl phthalate, is coated by dipping on a former and stripped off when dry. A strip i of a similar polymerisate containing about 5 per cent of softener and combined with a strip of gauze, may be coated with adhesive and secured to the stall for use in attaching it to the finger.
Patent GB-321682-A (GB)
Title: Improvements in electric signal systems
IPC: F22B37/28
Filed: 1928-08-15
Abstract: 321,682. Standard Telephones & Cables, Ltd., and Reeves, A. H. Aug. 15, 1928. Thermionic amplifiers.-In a system of lowfrequency amplification by modulation and detection, an auxiliary detector is associated with the generator of high-frequency current the output. from which is differentially added to the output of the amplifier to neutralize generator noise. The Figure shows a generator 1 and detector 9,. modulation being produced by an electrostatic microphone 7 in parallel with the tuned circuit 6, 8. An auxiliary detector 11 is associated with the generator 1 and its output is employed to neutralize the disturbances from the generator 1 transmitted by the detector 9.
Patent GB-1456758-A (GB)
Title: Rod controlled positive lock brake
IPC: B60T1/00
Filed: 1974-05-28
Abstract: 1456758 Positive detents NISSAN MOTOR CO Ltd 28 May 1974 [8 June 1973] 23597/74 Heading F2E A mechanism for braking a rotary shaft, e.g. vehicle transmission shaft 20 comprises: a gearwheel 21 for securing to the shaft, a pawl 22 having a toothed surface 22a and mounted for rotation (e.g. about shaft 23) into and out of engagement with the gear-wheel, a plate 30 connected (e.g. by bolt 34) for rotation with the pawl and also relative to the pawl about an axis perpendicular to the pawl, a manuallyoperable control element 40 having a shoulder 40b engageable with a wedge surface 30b on a cam portion 30a of the plate upon axial movement of the control element to cause the pawl to engage the gear, and biasing means (e.g. torsion spring 35) applying a preload to urge the plate to rotate relative to the pawl in one direction; the biasing means is yieldable, on axial movement of the control element, to a force which exceeds the preload and urges the plate to rotate in the opposite direction. The remote end of spring 35 is anchored towards the rear of pawl surface 22b, while its other end abuts the lever 30. The pawl is normally spring urged to the position shown in Fig. 5. If the control element 40 is moved for parking, (outwards as seen in Fig. 5), shoulder 40b engages surface 30b. If tooth 22a is opposite a space, further movement of element 40 forces the pawl inwards until cylindrical portion 40a overlies cam portion 30a (Fig. 4, not shown). If tooth 22a is opposite a tooth, Fig. 5, the further movement forces plate 30 clockwise (as seen from above); if thereafter gear wheel 21 is rotated to locate a space under tooth 22a, spring 35 rotates plate 30 counterclockwise, and pawl and plate are cammed inwards to the pawl-engaged position. A stop 32 limits movement of plate 30.
Patent GB-436816-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43C11/02
Filed: 1935-04-04
Abstract: 436,816. Fastenings for shoes. STEADMAN, J. B., and DERHAM BROS., Ltd., Portland Street, Soundwell, Bristol. April 4, 1935, No. 23655/34. [Class 17 (ii)] A bar, tie or other means f for attach ing a shoe to a foot is made expansible by fixedly securing it at one or botl ends to elastic or like material i, the narrow extremity of the barf passing through a narrow slit h in the side of the shoe, which engages a shouldered portion g of the bar and so limits expansion of the bar.
Patent GB-610018-A (GB)
Title: Electron discharge devices
IPC: H01J25/78
Filed: 1944-11-27
Abstract: 610,018. Electron discharge devices. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Nov. 27, 1944, No. 23660. Convention date, March 6, 1942. [Class 39 (i)] Electron discharge device, Fig. 3, includes a cathode 31 adapted to produce a converging beam of electrons and a pair of converging electrodes 35, 36 adapted to deflect the beam across an apertured electrode 34 to control the amount of current flowing to a collector electrode 33 which may be an output electrode. The electrodes 35, 36 can have a slight inward curvature. The electrode 33 could be coated with secondary emitting material, the secondary emission being captured by the electrode 34 which acts as the output electrode. The radius of curvature of the cathode can be approximately one-half of the length of the electrodes 35, 36. In the construction shown in Fig. 4, the deflecting electrode system includes plates 45, 46 and plates 47, 48, 49, 50 insulated from the electrodes 45 and 46 by sheets of mica 51 and 52. A lower positive potential is applied to the plates 47 and 48 than to the plates 49 and 50 to provide a lens action which assists in maintaining the convergence of the beam. The plates 45 and 46 may be electrically connected to the plates 49 and 50 respectively. The electrode 43 may be coated with secondary emitting material, the electrode 44 serving as the output electrode. In order to prevent radio-frequency currents from flowing in the leads over which direct potentials are provided, chokes 55, 56, 57 and 58 are provided. In the construction shown in Fig. 5 intended for operation at high frequencies, connectors 451 and 46<1> are'provided and the input voltage is applied to the deflecting plates by means of a Lecher wave system comprising tubular elements 60 and 61 shorted by the movable bar 62. The leads for carrying the steady potential to the deflecting plates pass through the tubular elements and are capacitively coupled thereto by condensers 64 and 65 so that radio-frequency potentials may be applied to the deflecting plates when the input signal is introduced into the Lecher wire system by means of the coupling loop 63.
Patent GB-406351-A (GB)
Title: Improvements in or relating to illuminated signs
IPC: G09F13/26
Filed: 1932-08-25
Abstract: 406,351. Fastenings. SETALITE, Ltd., Regent House, Kingsway, and MACRAE, R. S., 33, Riverview Gardens, Barnes, both in London. Aug. 25, 1932, Nos. 23816 and 27860. [Class 44.] An electric sign unit comprising a box having at the front a gas-discharge tube shaped as a character, is provided on its side panels with plug and socket connectors for connecting it to a similar unit or units, said connectors enabling the units to be drawn or forced tightly together and held firmly against one another as a rigid whole. As shown in Figs. 5, 6, each sign unit 1 is provided with a pair of plugs 5 engaging in apertures 6 of an adjacent unit to connect the units mechanically and electrically. Each plug is passed through apertures 22, 23 in plates 13, 14 respectively and the plate 14 is then moved along guides 15 by a screw 17, passing through the extension 16 and engaging a threaded aperture 18 in the plate 14, until the narrow end of the slot 23 engages behind the head 7 of the plug and sets up a wedging action to secure the units together. In a modification, Fig. 17, the plate 14 is normally pressed to locking position by a spring 39 and the plug is released by a push button 40. The plates 14 of a unit may be connected together by an ebonite bar and operated simultaneously by a screw engaging a bracket on the bar.
Patent GB-1501218-A (GB)
Title: Window particularly intended for installation in an inclined or flat roof
IPC: E04D13/035
Filed: 1975-06-03
Abstract: 1501218 Windows V KANN RASMUSSEN & CO 3 June 1975 [12 June 1974] 23976/75 Heading E1J A window comprises a sash 2 fitting over a frame 1, and links 10 pivoted to the centres of the sides of frame 1 and to one end of the sides of sash 2, the other end of the sash being movable parallel to the plane of the frame. An operating handle is connected by links 13 and pins 9 to links 10, and a counterbalancing gas cylinder 15 is provided. The other end of the sash is pivoted at 12 to telescopic guide rails 11 a portion of which is fixed to the frame. In Fig. 2 (not shown) link (10) is pivoted to the sash by a pin (24) movable in a slot (25). A ventilating gap 17 is provided.