baber/WOPTO huggingface dataset:
Patent GB-1086283-A (GB)
Title: High frequency spectrometer apparatus
IPC: G01N22/00
Filed: 1965-02-04
Abstract: 1,086,283. Microwave spectroscopy. HEWLETT-PACKARD CO. Feb. 4, 1965 [Feb. 4, 1964], No.4940/65. Heading G1N. A microwave spectrometer comprises three signal paths between a microwave signal source 9 and a detector 31: a first path includes an absorption cell 27, e. g. a Stark effect cell or a Zeeman effect cell, into which a fluid sample may be introduced; a second path enables a signal of controlled phase and amplitude to be mixed with the output from the cell so as to substantially cancel that output thereby enabling the detector to be operated under optimum conditions independent of the power applied to the absorption cell; the third path includes a modulator 35, attenuators 33, 37 and phase shifter 39. A switch 53 enables an oscillator of a tuned voltmeter 47 to be connected alternately, or simultaneously, to the absorption cell driver 45 and modulator driver 55. If alternate connection is used, the third path is adjusted to simulate the absorption effect in the cell: if simultaneous connection is used, the third path is adjusted to cancel the absorption effect in the cell. Phase shifter 19 in the second path enables the absorptive or dispersive mode to be selected.
Patent GB-149018-A (GB)
Title: Improved method of generating electric oscillations
IPC: H02M7/44
Filed: 1918-03-20
Abstract: 149,018. Eccles, W. H., and Jordan, F. W. March 20, 1918. Electric oscillations, producing.-In wireless transmission systems of the kind in which oscillations are generated by two three-electrode valves, the closed oscillatory circuit is acted upon by each valve and a source of voltage symmetrically in every half period. Various methods of carrying out this principle of the invention are described. As shown in Figs. 2 and 3, the grids of the two valves are connected by a coil inductively coupled to the closed oscillatory circuit CL. The grid leak resistance R maintains the grids at a potential found advantageous by trial. The anode circuits are in parallel and are connected in series with a high tension battery. An increase of one anode current applies to the closed circuit CL an impulse in one direction, and an increase of the other an impulse in the opposite direction. These variations in the closed circuit are induced in the grid coil and cause the potential of each grid, and consequently the resistance of each valve, to vary symmetrically in opposite directions in every half period with such phase relation as to maintain the oscillations in the circuit CL. As shown in Fig. 2, the coupling between the two anode circuits and the oscillatory circuit is direct. A method in which the anode current acts by mutual induction on the oscillatory circuit is indicated in Fig. 3. Fig. 4 shows a method in which resistance coupling is employed. In Fig. 5 a method of employing condenser coupling is shown. Instead of using two triodes, one tube possessing a single plate, two grids and two filaments, or alternatively one filament, two grids, and two plates, may be employed to obtain the desired symmetrical action. Reference has been directed by the Comptroller to Specification 147,851.
Patent GB-759014-A (GB)
Title: Improvements in triazines and their manufacture
IPC: C07D253/075
Filed: 1952-02-26
Abstract: The invention comprises 3 : 5-diamino-6-aryl-1 : 2 : 4-triazines of the general formula: <FORM:0759014/IV(a)/1> in which X and Y may be halogen or hydrogen, and a method for preparing them by the conversion of the corresponding 5-hydroxy-3-alkylmercapto-triazine to the 5-chloro-compound and treating this with ammonia.  The triazine may be prepared by the action of an arylglyoxylate ester on thiosemicarbazide and alkylating the mercapto group, or by the action of an arylglyoxylate ester on an S-alkylthiosemicarbazide.  In examples, the methods described above are used to prepare 3-mercapto - 5 - hydroxy - 6 - phenyl - 1 : 2 : 4-triazine, the corresponding 3-methylthio, and 3 : 5-diamino derivatives, and similar products in which the 6-phenyl group is substituted by 4-Cl-, 2 : 4-dichlor-, 3 : 4-dichlor- and bromine atoms.  The Provisional Specification also gives an alternative method of synthesizing the triazine in which aminoguanidine bicarbonate reacts with a methylphenylglyoxylate to give the 3 - amino - 5 - hydroxy - 6 - phenyl1 : 2 : 4 - triazine direct, and refers to products in which X or Y may also be alkoxy, giving as example the preparation of 3-methylthio-5-hydroxy - 6 - (3 : 4 - dimethoxy - phenyl)-1 : 2 : 4 - triazine; 3 - amino - 5 - hydroxy-6 - phenyl - 1 : 2 : 4 - triazine may be obtained by the action of ammonia on the corresponding 3-methylthio-compound; the 3 : 5-dihydroxy-6-phenyl compound may be obtained by acid hydrolysis of the preceding product.
Patent GB-400059-A (GB)
Title: Manufacture of dyestuffs and intermediate products therefor
IPC: C09B35/215
Filed: 1933-02-17
Abstract: o-Diaminodicarboxystilbenes are made from stilbenes which contain in each benzene nucleus a group convertible into the anthranilic grouping by known methods.  In an example, (1) 4 : 4<1>-dinitrostilbene - 3 : 3<1> - dicarboxylic acid (obtained by oxidation of 6-nitro-3-methyl-1-benzoic acid with alkaline hypochlorite) is reduced with sodium sulphide.  Disazo dyes are made by coupling tetrazotized o-diaminodicarboxystilbenes with coupling components.  They may be converted into metal compounds in substance, on the fibre, in the dyebath or during the coupling process.  The metal compounds dye wool, cotton, silk, leather, regenerated cellulose, cellulose esters and ethers and varnishes.  In examples the following componets are coupled with tetrazotized 4 : 4<1>-diaminostilbene - 3 : 3<1> - dicarboxylic acid; (2) 1 - amino - 8 - naphthol - 4 - sulphonic acid; (3) 1-naphthol-4-sulphonic acid and phenyl J acid; (4) 1-amino-8-naphthol-4-sulphonic acid and acetoaceticanilide; (5) phenyl J acid; (6) the dyestuff of (5) is treated with ammoniacal copper oxide; (7) the above tetrazo compound is coupled with 1-(2<1>-chloro-5<1>-sulphophenyl)-3-methyl-5-pyrazolone and 1-phenyl-3-methyl-5-pyrazolone; (8) the dyestuff of (7) is treated with copper sulphate; (9) the above tetrazo compound is acid coupled with 2-phenylamino-naphthalene and alkaline with 1-amino-8-naphthol-4-sulphonic acid and the dyestuff treated with ammonium meta - vanadate; (10) the dyestuff 4 : 4<1>-diaminostilbene-3 : 3<1>-dicarboxylic acid \sQ 2<1>-methoxyphenyl J acid is treated with ammoniacal nickel sulphate; (11) the dyestuff of (7) is treated with chromium fluoride.  Examples of dyeing processes are also given.  In a table the shades obtained with the dyestuffs and copper compounds thereof derived from the above tetrazo compound and the following components are given: (1) phenyl-2 : 8 : 6 - acid; (2) 1 - amino - 8 - naphthol-4 - sulphonic acid and barbituric acid; (3) 2-phenylaminonaphthalene - 5 : 7 - disulphonic acid and phenyl J acid; (4) H acid; (5) phenyl J acid and b  - naphthol; (6) 1-naphthol-5-sulphonic acid; (7) 1-amino-8-naphthol - 4 - sulphonic acid and b  - naphthol; (8) J acid; (9) 2 : 8 : 6-acid; (10) and (11) 2-phenylaminonaphthalene and 1 : 8 : 4-acid or 1 - naphthol - 5 - sulphonic acid; (12) phenyl2 : 8 : 6-acid and phenyl J acid; (13) 7<1>-sulpho-5<1>-oxy-2<1>-naphthyl-4 -aminophenoxyacetic acid; (14) phenyl J acid and 1 : 8 : 4 - acid; (15) 2-phenylaminonaphthalene - 5 : 7 - disulphonic acid and b -naphthol; (16) 2<1>-carboxyphenyl J acid.
Patent GB-672379-A (GB)
Title: Production of carboxylic acid amides
Inventor: REPPE WALTER
IPC: C07C51/14
Filed: 1950-02-28
Abstract: Carboxylic acid amides are prepared by reacting carbon monoxide and ammonia or a primary or secondary non-aromatic amine with a compound containing at least one olefinic linkage at elevated temperature and pressure in the presence of a catalyst consisting of a cyanide of a metal capable of forming a carbonyl or of a mixture of such a cyanide with a cyanide of a mono- or di-valent metal or ammonia or a primary or secondary non-aromatic amine or the complex compound resulting from such a mixture. Suitable catalysts are Belucci-salt, K2Ni(CN)3, and potassium tetracyano nickelate, K2Ni(CN)4 and the corresponding complex salts of other alkali metals such as sodium or lithium, or of alkaline earth metals such as calcium, barium and magnesium or of other bivalent metals such as zinc, cadmium or mercury or of ammonia or primary or secondary non-aromatic amines. Mixtures of nickel cyanides and cyanides of the mono- and divalent metals mentioned above or of nickel cyanide and ammonia or primary or secondary amines may also be used.  The catalysts may be used with a carrier, e.g. aluminium oxide, silicic acid gel or pumice stone.  Suitable olefinic starting materials are ethylene, propylene, butylene, butadiene, diisobutylene and their homologues and cyclic olefines such as cyclohexene, cyclooctene, terpenes or styrene.  Olefines containing substituents, e.g. allyl alcohol, butene-3-ol-2 and butene-2-diol-1.4, unsaturated ethers, e.g. dihydrofurane and olefine carboxylic acids may also be used. Instead of ammonia primary or secondary non-aromatic amines may be used, e.g. mono- or di-methyl-, -ethyl-, propylamine and their homologues, cyclohexylamine, piperidine, pyrrolidine or hexamethylene imine.  The preferred temperature is in the range of 100-200 DEG  C. and the preferred pressure is in the range 50-200 atmospheres.  The reaction may be carried out continuously or in batches.  Water or other solvents, e.g. ether, ketones or saturated hydrocarbons may be used.  The products may be used for the production of plastics or as intermediates in the preparation of plasticizers, lacquers, resins, textile assistants or tanning agents.  In the examples: (a) propionic acid amide is obtained from carbon monoxide, ammonia and ethylene in the presence of nickel cyanide; compounds of formula C7H12N2O2 and C12H19O6N3 are formed as by-products; (b) tetrahydrofurane carboxylic acid amide is obtained from hydrofurane, ammonia and carbon monoxide in the presence of nickel cyanide; ammonium formate, formic acid and tetrahydrofurane carboxylic acid are obtained as by-products; (c) isovaleric acid amide is obtained from hydroquinone, carbon monoxide and ammonia in the presence of nickel cyanide.
Patent GB-470821-A (GB)
Title: Improvements in or relating to fire-guards or screens
IPC: A47G5/02
Filed: 1936-02-20
Abstract: 470,821. Domestic fireguards. BRITTAIN, F. W. Feb. 20, 1936, No. 5122. [Class 126] A portable domestic fireguard, comprising a flexible member g, formed for example of jointed strips g<1>, g<2>, bars or wire gauze, capable of being wound about a spring-operated roller e or equivalent and when required for use drawn out against the action of the spring, is constructed as a stand in the form of a cage b mounted on a heavy part base a, and the flexible member has at its free end a member h mounted on a relatively heavy base portion h<2> forming a complement of the base part a. A semi-cylindrical plate may close one side of the cage. A spring-catch i engaging one of the projections i<3> on the roller e holds the guard in its open or closed position. Hooks j are provided on the cage to carry fire-irons, and ashtrays may be attached to the stand.
Patent GB-778494-A (GB)
Title: Improvements in or relating to delay-action self-destroying percussion fuzes
IPC: F42C9/18
Filed: 1956-02-20
Abstract: 778,494. Projectile fuzes. SOC. PER AZIONI FRATELLI BORLETTI. Feb. 20, 1956 [Feb. 18, 1955 ; Sept. 10, 1955], No. 5235/56. Class 9 (1). A delay-action percussion fuze intended more particularly for A.-A. projectiles and having a clockwork controlled self-destruction device has safety means for preventing arming on the first part of the trajectory comprising a toothed rack 2 interposed between a detonator 3 and the firing pin 4, the rack movement being controlled by the clockwork mechanism M through a pinion 7. Locking bolts 8, which are held by the rack prevent flash from the detonator passing to the igniter 23. During transport a bolt 9 pressed inwards by a spring 11 houses a pin 10 which engages a recess in the rack 2, Fig. 3, to lock the rack. On firing the projectile, when the angular velocity exceeds a predetermined value, the bolt 9 moves outwards due to centrifugal force and releases the rack. Screwed into the fuze body 1 is a nose 12 closed by a disc 13 and housing a striker 14 together with selfdestruction mechanism. This mechanism comprises a hammer mounted in a spring-stressed sleeve 15 supported by balls 17 which bear against a conical surface of a ferrule 21 fixed in the body 1. Into a ring 22 closing the body 1 is screwed the igniter 23 separated from the detonator 3 by a labyrinth delay device 24. Surrounding the sleeve 15 is a frusto-conical cap 19, which extends into a ring 20 and is thrust inwards by an amount proportional to the initial acceleration of the projectile to stress the hammer spring 18. The cap 19 and ring 20 may be replaced by a small cylinder supported by a spring. In this modification, centrifugally driven bolts move outwards from the cylinder, as the cylinder sets back on firing the projectile, to lock the cylinder and so maintain the stress on the hammer spring. The locking bolts are helically arranged in the cylinder so that the cylinder may be locked in the position which corresponds to the initial acceleration of the projectile. On firing the projectile, the bolt 9 moves outwards freeing the clockwork-controlled rack which then moves to free the striker. When the rack has completed its movement, the locking bolts controlling the flash passage move and the projectile is armed for action on impact. If the projectile does not strike the target, as the spin decreases the equilibrium between the balls 17 and the spring 18 ceases and the balls move inwards releasing the sleeve 15, which then drives the hammer on to the striker to initiate the fuze.
Patent GB-1527703-A (GB)
Title: Ankle wrap
IPC: A61F13/06
Filed: 1977-02-09
Abstract: 1527703 Ankle wrap I F CASTIGLIA 9 Feb 1977 [20 Sept 1976] 05317/77 Heading A5R [Also in Divisions El and E2] A reusable ankle wrap comprises an elongated elastic panel 11 having a male Velcro (Registered Trade Mark) fastening tab 16 at one end thereof, a first female Velcro fastening member 20 attached to the front surface of the panel at a position such that said fastening member can be releasably fastened to the tab 16 when the end of the panel is wrapped around the arch portion of a foot, an inelastic nylon reinforcing panel 15 attached to the front surface of the panel 11 and extending between the fastening tab 16 and the fastening member 20, a second female Velcro fastening member 23 attached to the front surface of the panel at the other end thereof and a male Velcro fastening member 21, Fig. 3, attached to the back surface of the panel at a position between said fastening members 20 and 23. Nylon reinforcing panels (18, 24), Fig. 2 (not shown) may be provided on the back surface of the panel 11 at each end thereof. In use the reinforcing panel 15 is passed under the arch of the foot and the fastening member 20 is secured to the tab 16; the elastic panel is then wrapped twice across the front of the ankle, around the back of the ankle and under the arch of the foot, and finally the fastening member 23 is secured to the member 21 to hold the wrap in position.
Patent GB-1452383-A (GB)
Title: Drier unit for use in drying a wet web of fibrous material
IPC: F26B23/00
Filed: 1974-03-13
Abstract: 1452383 Drying webs AER CORP 13 March 1974 [4 April 1973] 5347/75 Divided out of 1452382 Heading F4G The subject matter of the present Specification is as that in Parent Specification 1452382 but the claims relate to the supporting of the edges of the fabric in a drier unit.
Patent GB-556131-A (GB)
Title: Improvements relating to mechanical excavators
IPC: E02F3/36
Filed: 1942-04-21
Abstract: 556,131. Excavators. PRIESTMAN BROS., Ltd., and BROCKLEBANK, N. April 21,1942, No. 5359. Addition to 544,984. [Class 68 (i)] The excavator of the parent Specification is modified by pivoting the upper end of the bucketcontrolling link 26 to a member 32 slidable in the jib 18 in a direction lengthwise of-the link whereby the angular position of the scoop 12 may be adjusted The member 32 may comprise parallel racks slidable in guides and engaged by toothed pinions or sectors 36 fixed to a spindle 38 which is adjusted angularly by a worm sector 40 in mesh with a worm 42 rotated by a handle 46 or by cord and pulley. Graduations may be provided on the worm sector 40, or on a drum carried by spindle 38, to facilitate adjustment.
Patent GB-344194-A (GB)
Title: Improvements in or relating to stranded electric conductors
IPC: H01B5/08
Filed: 1930-02-18
Abstract: 344,194. Cables. PIRELLI-GENERAL CABLE WORKS, CO., Ltd., 144, Queen Victoria Street, London, and McLELLAN, J., 59, London Road, Wembley, Middlesex. Feb. 18, 1930, No. 5424. [Class 36.] A stranded electric conductor of the composite type used in overhead lines comprises wires of different kinds or properties, arranged within the same layer of stranding, copper or tinned copper interstranded with steel or galvanized steel wires being excepted from the ambit of the invention. In the constructions shown, wires a of good mechanical properties, e.g. copper-clad steel wires, are interstranded with wires b of good electrical properties, e.g. copper wires, each stranding layer containing wires a, b. Specification 304,031, [Class 36, Electricity, Conducting &c.], is referred to.
Patent GB-929112-A (GB)
Title: Process for the oxidative dehydrogenation of cí¬c alkanes
IPC: B01J23/16
Filed: 1962-02-13
Abstract: Conjugated diolefins are obtained by reacting a C4-C6 alkane having a carbon chain of 4 carbon atoms with oxygen at 400 DEG -650 DEG C. for 0,5-4 seconds in the presence of a molybdate or phosphomolybdate of lithium and/or sodium. Olefins may also be present and olefin by-products may be recycled; in the conversion of butene to 1,3-butadiene, however, isobutene should be absent.  The amount of oxygen may be 0,5-2 moles per mole of alkane and olefin and steam or nitrogen may be added in amounts up to a ratio of inert gas to reactants of 4:1 but may be omitted.  The catalyst may be suspended in the reactants, a suitable weight ratio of catalyst to reactants being 0,02:1 in a reactor having a length to diameter ratio of 0,002-0,2 with a gas velocity of 3-15 m./sec. at a pressure of 0,5-4 atm. absolute, or may be in a fixed bed using a G.H.S.V. of 120-600, or may be fluidized.  The catalyst may be supported on alundum, crushed firebrick or pumice or mixed with a filler, e.g. alumina.
Patent GB-371995-A (GB)
Title: Improvements in clip devices for holding materials
IPC: D06F57/12
Filed: 1931-02-21
Abstract: 371,995. Clips. OGDEN, J., 2, Blue Boar Court, Market Place, Manchester. Feb. 21, 1931, No. 5497. [Class 44.] A clip particularly for supporting material in drying apparatus comprises a member 1 conforming in shape to the cross section of a support 2 along which it is slidably adjustable and having pivoted thereto a gravity-operated member 3 adapted to grip the material against the member 1 or, as shown, against the support 2.
Patent GB-577418-A (GB)
Title: Process for the preparation of amides of aromatic carboxylic acids
IPC: C07D277/38
Filed: 1943-04-08
Abstract: Amide derivatives of aromatic carboxylic acids are obtained by condensing a hydroxy phenyl-mono-carboxylic acid with free or substituted hydroxyl groups, or a reactive derivative thereof, with an amino derivative of a compound containing a mono nuclear uncondensed five-membered heterocyclic ring.  Specified substituents in the hydroxyl group of the acid are: acyl, alkyl, aralkyl or aryl radicals; and the acid may contain further substituents in its nucleus.  Specified amino derivatives are: pyrroles, furanes, thiophenes, imidazoles, pyrazoles, oxazoles, thiazoles, triazoles and tetrazoles.  In examples there is condensed 2-amino-thiazole with: (1) o-acetoxybenzoyl chloride in ethereal solution to form o-acetoxybenzoyl - 2 - aminothiazole and 2 - o - hydroxy - benzoylaminothiazole as a by-product; (2) o-hydroxybenzoyl chloride in benzene to form o-hydroxybenzoyl-2-aminothiazole.  Samples of products of the invention have been filed, under Sect. 2 (5) of the Acts, obtained by the condensation of: (1) b -(4-imidazolyl)-ethylamine with o-hydroxy-benzoyl chloride in chloroform solution to form N-(b -4-imidazolyl-ethyl) - o - hydroxy - benzamide; (2) 4 - amino - 1 - phenyl -2.3 - dimethyl - 5 - pyrazolone with o-acetoxybenzoyl chloride in aqueous sodium hydroxide solution to form 4-o-hydroxybenzoylamino - (1 - phenyl - 2.3 - dimethylpyrazolone); (3) 2-amino-4-methylthiazole dissolved in chloroform with o-acetoxybenzoyl-chloride dissolved in pyridine to form 2-o-hydroxy benzoylamino-4 - methyl - thiazole; (4) 2 - amino - 4 - methyl - thiazole with o-acetoxybenzoyl chloride in dioxane solution to form 2-di-(o-hydroxybenzoyl) - amino - 4 - methyl - thiazole; (5) 2 - (o - hydroxybenzoyl)-aminothiazole with o-acetoxybenzoyl chloride in aqueous sodium hydroxide solution to form 2-di-(o-hydroxybenzoyl)-aminothiazole; (6) 2-aminothiazole, dissolved in a mixture of dioxane and ether, with p-carbethoxyoxy-benzoyl chloride dissolved in di-ethyl-ether to form 2-p-carbethoxy-oxy-benzoylamino-thiazole which is saponified by treatment with a mixture of ethanol and aqueous sodium hydroxide to form 2-p-hydroxybenzoylamino thiazole; (7) 2 - amino - thiazole with veratroyl chloride in acetone solution to form 2-veratroylaminothiazole; (8) 2-aminothiazole dissolved in a mixture of dioxane and di-ethyl-ether with anisoyl chloride dissolved in ether to form 2-anisoyl-amino-thiazole. Specification 414,336 is referred to.
Patent GB-633319-A (GB)
Title: Furnace and other doors
IPC: F23M7/00
Filed: 1948-02-25
Abstract: 633,319. Door operating-appliances. ELLIS, C. C., and WILD-BARFIELD ELECTRIC FURNACES, Ltd. Feb. 25, 1948, No. 5658. Addition to 596,070. i[Class 65 (i)] [Also in Group XII] The suspension device for a vertically movable furnace or other door described in the parent Specification, is modified by forming the lever, or each lever 5, to which the door 3 is pivoted, with a second arm or extension to which is connected a counterbalance spring 7 anchored at 9 to the furnace casing, the arrangement being such that the leverage exerted by the spring increases and its strain decreases as it moves away from the lever pivot 4 in a downward direction when the door is raised.