baber/WOPTO huggingface dataset:
Patent GB-484538-A (GB)
Title: Improvements in door and like fastenings
IPC: E05B65/34
Filed: 1937-06-09
Abstract: 484,538. Door, lid, &c. fastenings. ENDTER, W. A. June 9, 1937, No. 16030. [Class 44] In a fastening for doors, lids, &c. of the kind in which a pinion-like member rotates into engagement with a suitably-shaped keeper and is held against reverse rotation by holding means releasable when desired to open the door &c., an abutment surface is provided to hold the rotatable member in close engagement with the keeper. Fig. 2 shows a pinion 5 projecting from a plate 1 attached to the edge of the door and mounted on spindle 3 supported at one end by a bracket 4 which shrouds the lower part of the pinion. A rotatable disc 7 closes a circular aperture in plate 1. A fixed abutment 14a is provided between which and pinion 5 the fixed keeper 10, Fig. 1, is received. Keeper 10 has a spring pressed finger 11 for preliminary engagement with member 5 to provide a safety-catch. In the fully engaged position one tooth of member 5 is engaged in recess 12 and the adjacent tooth bears against inclined surface 13. Housed behind plate 1 is a toothed wheel 6, Fig. 8, on spindle 3 engaged by pivoted dogs 15 under the action of springs, not shown, to prevent release rotation of member 5. The cam surfaces 17 of the dogs are differently curved so that the dogs act in succession and, in the secured position, a tooth of member 5 engages surface 13 under spring pressure. Release is effected by a handle, not shown, on spindle 22 which rotates an arm 21 to depress a sliding member 19, a lug 20 on which engages an arm 18 carried by one of the dogs and bearing against the others, to rock the dogs out of engagement. A modification is described in which the wheel 6 is replaced by a disc having pins extending from one face thereof and engaged by correspondingly modified dogs. A further modification provides keeper and abutment of dove-tail cross-section to hold the secured members against lateral separation. Fig. 10 shows a hood fastening in which the keeper 32 is received between the wheel 27 and the rim of the hood 29. Fig. 20 shows a fastening in which a tongue 59 enters a socket 60 and is held therein by a pair of wheels 63, 64 with co-operating dogs 65, 66. The socket walls are bent inwards at 61, 62 so that each wall acts simultaneously as a keeper for one wheel and an abutment co-operating with the other. The dogs have engaging toothed portions at 67 so that simultaneous release is effected by a single rotatable arm 68. A modification is described in which the dog 66 and wheel 64 are omitted, the right-hand wall of the socket, which acts only as an abutment, being straight and bearing against the edge of the tongue.
Patent GB-1042973-A (GB)
Title: Computer arrangements
IPC: G06F13/36
Filed: 1963-04-23
Abstract: 1,042,973. Electronic digital computers. GENERAL ELECTRIC CO. April 23, 1963 [May 1. 1962 (2)], No. 16054/63. Heading G4A. Connection between a computer and one of its peripheral units is established with the use of a switching unit which on receipt of signals from a plurality of peripheral units calling for connection selects that unit having the highest priority from a predetermined order of priorities. The logical circuitry for such selection is illustrated schematically (Fig. 1, not shown), and includes a bi-stable unit for each peripheral device which when enabled controls the routing of data to and from that device.
Patent GB-832562-A (GB)
Title: Improvements in the heat treatment of stainless steel
IPC: C22C38/44
Filed: 1957-05-21
Abstract: A method of producing heat treated stainless steel comprises selecting a steel containing 0.03%-0.15% C., 0.25%-2.0% Mn, up to 0.5% Si, 14.5%-18% Cr, 3.5%-7.0% Ni, 2.0%-3.5% Mo, 0.05%-0.15% N, the balance being iron and unavoidable impurities, e.g. 0.04% max. P, 0.04% max. S, and 0.25% max. Cu, and having a stability factor D , in accordance with the formul  D  = % Ni - 1/12 [% Cr + 1.5 (% Mo) - 20]2 + 1/2 (% Mn) + 35 (% C + % N) - 14 where [% Cr + 1.5 (% Mo)] < 20 and D  = % Ni + 1/12 [% Cr + 1.5 (% Mo) - 20]2 + 1/2 (% Mn) + 35 (% C + % N) - 14 where [% Cr + 1.5 (% Mo)] > 20 of - 3.82 to - 4.65 where (C + N) < 0.2 and Cr = 16-18% or of - 0.10 to - 1.0 where (C + N) > 0.2 and Cr = 14.5-16% austenizing the steel at 1675-1950 DEG F., cooling at a rate fast enough to retain at least 70% austenite, cooling to between - 80 DEG F. and - 110 DEG F., working the cooled steel at room temperature to produce a reduction in cross-sectional area of 10% to 30% and then tempering at 750 DEG F. to 950 DEG F. The sub-zero cooling may be for 1/2 to 2 hours and the final tempering for from 2 to 50 hours.  Specification 824,031 is referred to.
Patent GB-786666-A (GB)
Title: A cable grip or gland for armoured cables
Inventor: LOTT FREDERICK JOSEPH
IPC: H02G3/06
Filed: 1955-06-07
Abstract: 786,666. Mechanical couplings for cable or wire armouring. LIGHT & POWER ACCES- .  SORIES CO., Ltd. April 24, 1956 [June 7, 1955], No. 16306/55. Class 38 (1). The armouring of a cable is clamped between conical surfaces 7, 11 of male and female parts b, c, respectively, which abut against shoulders 5 and 14 in a body a and nut d, respectively, the nut being screwed on to the body to clamp the armouring. Different sizes of glands are described in other embodiments, Figs. 3-6 (not shown), in which the female member is in the form of a ring and has an entirely conical interior surface.
Patent GB-715124-A (GB)
Title: Improvements in foam-producing apparatus
Inventor: CLIFFORD WILFRID JAMES
IPC: A62C5/00
Filed: 1951-07-11
Abstract: 715,124. Valves. PYRENE CO., Ltd. July 3, 1952 [July 11, 1951], No. 16459/51. Class 135. [Also in Group XXI] A liquid conduit 34 is provided with a constant flow valve comprising a sleeve 42 movable against a spring 48 to partially obstruct outlet ports 38.
Patent GB-1030587-A (GB)
Title: Production of melamine from urea
Inventor: HAMPRECHT GUENTHER
IPC: B01J21/04
Filed: 1965-04-20
Abstract: Melamine is made by heating urea, and/or its thermal decomposition products, at 300-450 DEG  C. in the presence of added ammonia or gas containing ammonia and a catalyst comprising aluminium oxide which has been prepared by calcining bohmite, bayerite, hydrargyllite or a mixture thereof at 700-1000 DEG  C.  The added ammonia may be in the form of the off-gas containing CO2 which is obtained after removing melamine from the reaction gases.  The catalyst may be regenerated by treatment with ammonia at elevated temperatures.  The process is effected in a continuous manner.  The examples relate to a catalyst obtained by calcining a mixture of bohmite and bayerite.
Patent GB-102266-A (GB)
IPC: H02K21/38
Filed: 1916-06-17
Abstract: 102,266. Mason, C. T. June 19, 1915, [Convention date]. Inductor-alternators. - A generator for use in the ignition of multicylinder internal-combustion engines comprises permanent field magnets g<1>, an armature structure composed of a core g<6> carrying windings g<9> and pole members g<7>, g<8>, and a rotor comprising two U-shaped magnetic elements mounted on a non-magnetic block g<14> and arranged with their arms in quadrature. The rotor shaft portions g<4>, g<5> extend through openings in the magnets g<1>. The pole members g<7>, g<8> are embedded in a cylindrical casting g<22> of non-magnetic metal, such as brass or white metal, the pole faces being marked g<70>, g<80> on Fig. 3. The casting g<22> constitutes a housing for the rotor, a space g<23> left in the upper part being closed by a cover of mica or fibre. Four flux-reversals are produced through the armature core structure per revolution of the rotor, with the construction shown; the number of flux-reversals may be increased by increasing the number of prongs on each rotor element, the angle separating the pole faces g<70>, g<80> being then decreased. An interrupter I is provided for breaking the winding circuit. In the case of a twelve-cylinder engine, for example, the rotor may be made with two three-pronged forks with the prongs interlocking, and the distributor D, of the kind described in Specification 100,942, is then geared to rotate at half the speed of the rotor; or, alternatively, the rotor may be constructed as shown in Fig. 1, and the distributor is then driven with a gear ratio of 3 : 1. The generating-winding is connected to the distributor D by means of an arc-shaped contact g<11> mounted on an insulating-bridge g<12>; this contact has a tongue g<13> extending towards the metal frame to form a safety gap. One terminal of the primary coil is connected to an interrupter contact by a conductor g<21> protected by a rigid envelope or casing. The part carrying the interrupter contacts is secured to the housing g<22> so that the contacts and the armature structure may be adjusted together. Specifications 8128/13, 8964/13, and 29655/13 are referred to.
Patent GB-710229-A (GB)
Title: Acid milling of vat dyestuffs
IPC: C09B67/28
Filed: 1952-07-01
Abstract: A water-insoluble dyestuff of one of the following classes is conditioned to a desired particle size by milling 1 part thereof with 0.5 to 5 parts of sulphuric acid, chloracetic acid, phosphoric acid, or a liquid organic sulphonic acid of 68-100 per cent concentration with forces shearing in nature, under non-reactive conditions.  The classes of dyestuff concerned are anthraquinone acridones, oxazoles, thiazoles, carbazoles, and thioxanthrones, acylamino anthraquinones, anthanthones, benzanthrones, dipyrazolanthrones, flavanthrones, pyranthrones, pyrenequinones, thioindigos and polynuclear peridi- and tetracarboxylic acid imides and imidazoles.  The preferred temperature of milling is 20-50 DEG C.  A list of dyestuffs of the above types is cited and a number of examples in which various such dyestuffs are milled with sulphuric acid is given. Specifications 503,666 and 652,386 are referred to.
Patent GB-1216128-A (GB)
Title: Novel intermediates in the preparation of alkylsulphinylphenothiazines
Inventor: BOURQUIN JEAN-PIERRE
IPC: C07C233/16
Filed: 1968-04-05
Abstract: 1,216,128. Dithiohydroquinone- and phenothiazine S-oxides. SANDOZ Ltd. 5 April, 1968 [18 April, 1967; 27 July, 1967], No. 16576/68. Heading C2C. The invention comprises compounds of the general Formula II in which R 1  represents a lower alkyl C 1-4  group, R 2  represents a lower aliphatic acyl C 1-4  group and Hal represents a chlorine, bromine or iodine atom are prepared by treating the appropriate sulphide III in an inert organic solvent with a 30% hydrogen peroxide solution at an elevated temperature. The compound of Formula III when R 2  represents -CHO is novel and is prepared by reacting the corresponding amine with anhydrous formic acid at an elevated temperature. Phenothiazines of the general Formula I may be prepared by heating the compounds of Formula II in an inert solvent in the presence of an alkaline condensing agent e.g. Na 2 CO 3 .
Patent GB-1318527-A (GB)
Title: Catalysts
IPC: B01J37/02
Filed: 1970-04-08
Abstract: 1318527 Catalysts and preparation thereof UNILEVER Ltd 8 April 1970 [9 April 1969] 16631/70 Heading B1E [Also in Divisions Cl C2 and C5] Catalyst comprising a metallic catalytic agent supported on porous carrier material is prepared by a process which comprises suspending particles of porous carrier material by agitation in an aqueous solution containing (a) a metal salt and (b) a source of hydroxyl ions which, on heating, provides hydroxyl ions and thereafter heating the resulting suspension, at a temperature above 100C in apparatus which prevents free escape of water vapour, in a manner such that sufficient hydroxyl ions are developed to precipitate all of the metal of the metal salt on the particles of carrier material. The material thus prepared may be subjected, as desired and/or required, to one or more steps involving washing, drying, calcining and reducing by means of a reducing agent, for example hydrogen. Exemplified carrier materials are silica, alumina, magnesia, titania, magnesium hydroxycarbonate, magnesium sulphate, barium sulphate, zinc carbonate, charcoal, active coal, kaolin, asbestos, porcelain, pumice, infusional earth and diatomaceous earths, for example kieselguhr; the carrier material may have a surface area of from 4 to 1000 m<SP>2</SP>/g. Exemplified metals which may constitute or form part of the metallic catalytic agent are copper, gold, beryllium, zinc, cadmium, mercury, scandium, aluminium, gallium, thallium, titanium, zirconium, hafnium, germanium, tin, lead, vanadium, niobium, tantalum, antimony, bismuth, chromium, molybdenum, tungsten, manganese, rhenium, iron, cobalt, nickel, ruthenium, rhodium, palladium, osmium, iridium, platinum, thorium, uranium and rare earth metals, for example samarium, erbium and ytterbium; the metallic catalytic agent may comprise more than one such metal. The source of hydroxyl ions may be a compound having the formula wherein R<SP>1</SP> and R<SP>2</SP> either each independently represents a hydrogen atom or an alkyl group containing from 1 to 4 carbon atoms or, when taken together, represent a -(CH 2 ) 4 -, -(CH 2 ) 5 - or -(CH 2 ) 2 -O-(CH 2 ) 2 - group; R<SP>3</SP> represents a hydrogen atom, an alkyl group containing from 1 to 4 carbon atoms or an -NR<SP>1</SP>R<SP>2</SP> group; and X represents an oxygen atom or an imide (=NH) group. Exemplified sources of hydroxyl ions are urea, formamide, dimethyl formamide, acetamide, dimethylacetamide and. hexamethylenetetramine. The Specification contains numerous examples relating to the preparation, and subsequent use, of catalysts. Reference is made to Specification 1220105 and 131828.
Patent GB-554309-A (GB)
Title: New phenothiazine derivatives
Filed: 1941-12-26
Abstract: 554,309. Phenothiazine derivatives. LEVI, A. A., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Dec. 26, 1941, No. 16672. [Class 2 (iii)] [Also in Group VI] N-alkoxymethyl or N-cycloalkoxy methyl derivatives of phenothiazine in which the alkyl or cycloalkyl group may contain an alkoxy or other non-reactive substituent are prepared by interaction of phenothiazine, formaldehyde and an alcohol in presence of water and at a pH value of 4.5-6.5, preferably by adding sodium dihydrogen phosphate. Examples are given of the preparation of N-ethoxymethyl-, N-npentanoxymethyl-, N-n-dodecanoxymethyl-, N-methoxymethyl, and N - cyclohexanoxy - methyl-phenothiazine. Monomethyl and monoethyl ethers of ethylene glycols may also be used as the alcohols. The products when dissolved in hydrocarbon and vegetable oils are used as pharmaceutical, veterinary and pest control preparations.
Patent GB-920267-A (GB)
Title: Sulphur containing purine and pteridine compounds
IPC: C07D473/24
Filed: 1959-05-15
Abstract: The invention comprises compounds of the formula <FORM:0920267/IV(a)/1> (wherein X is a hydrogen atom or an amino group, Y is a hydrogen atom or a phenyl group substituted by one or more halogen atoms or alkyl groups of at most 4 carbon atoms, and Z is a methylidyne or hydroxy-methylidyne group or the group CR3=CR4, wherein R3 and R4 are hydrogen atoms or hydroxy groups or alkyl groups of at most 4 carbon atoms) but excludes 6-mercapto-purine, 2-amino-6-mercapto-purine and 6-mercapto-8-hydroxy-purine.  The above formula represents a number of tautomeric forms, all of which are included in the invention.  When Y is a hydrogen atom, the compounds are readily oxidizable to disulphides, and these and the mercapto compounds are readily interconvertible.  The compounds may be prepared by reacting a corresponding 4-chloro-pteridine or 6-chloro-purine with a compound containing the anion (S-Y)-.  When Z is CR3=CR4 they may also be prepared from a corresponding p 4,5-diamino - 6 - mercapto-pyrimidine and an appropriate a -diketone. Examples describe the preparation of 4 - mercapto - 6,7 - dimethyl-pteridine; 2-amino-4-mercapto-pteridine; 4-mercapto - 7 - hydroxy - pteridine 2-amino-6-mercapto-8-hydroxy-purine; 6-(41-chlorophenyl-mercapto)-purine and 6-(21 and 31 and 41-methylphenylmercapto)-purines.
Patent GB-827196-A (GB)
Title: Improvements in or relating to hardboard or plastic board
IPC: C08L97/02
Filed: 1956-05-30
Abstract: In making hardboard or plastic board, ammoniated bagasse or bagasse pith, mixed, if desired, with a synthetic resin such as partially polymerized phenol-formaldehyde resin and/or a plasticizer such as butyl stearate, is heated, e.g. at a temperature exceeding 100 DEG C., under pressure, e.g. not exceeding 2,000 lb. per sq. inch.  Five per cent of partially polymerized phenolformaldehyde resin, based on the weight of the ammoniated bagasse, may be used.ALSO:A plastic composition comprises ammoniated bagasse or bagasse pith mixed with 5% of its weight of partially polymerized phenolformaldehyde resin and/or a small amount of butyl stearate.
Patent GB-545360-A (GB)
Title: Improvements in or relating to the preparation of tetraacylated ribonyl derivatives
IPC: C07C235/02
Filed: 1940-11-20
Abstract: 545,360. Ribonyl derivatives. PFIZER & CO., C. Nov. 20, 1940, No. 16712. Convention date, Dec. 16, 1939. [Class 2 (iii)] Tetra-acylated ribonyl derivatives including tetra-acylated ribose in the aldehyde form are prepared by tetra-acylating ribonamide, treating this with nitrous anhydride to form tetraacylated ribonic acid, forming the acid chloride, and finally reducing to the free aldehyde ribose. The d-ribonaniide which forms the starting material for the series of reactions is preferably prepared by treating d-ribonolactone in alcohol solution with dry ammonia. In an example d-ribonamide is treated with acetic anhydride in pyridine solution to form tetra-acetyl-dribonamide which is then dissolved in glacial acetic acid or treated with the gas obtained by reacting sodium nitrite with excess of sulphuric acid. On removing the acetic acid, tetraacetyl-d-ribonic acid is isolated. The corresponding acid chloride which is obtained by reaction with phosphorus pentachloride in chloroform solution, is then reduced by hydrogen in the presence of a Pd-Ba SO catalyst in xylene solution to form tetra-acetyl-d-ribose.
Patent GB-141396-A (GB)
Title: Improvements in or relating to devices for coupling vehicles
IPC: B61G5/02
Filed: 1918-10-14
Abstract: 141,396. Goodall, C. N. Oct. 14, 1918. Draw-gear; combined buffer and draw-gear. -In a flexible coupling for vehicles or for connecting the undercarriages of duplex or other articulated locomotives, a draw-bar a, Fig. 1, is connected to the two vehicles by universal joints, each of which comprises a member b of spherical, hemispherical or like formation having a central bore b<1> for the passage of the draw-bar and attached by a flange b<2> or like means to the frame of the vehicle, and cup-like members d moving with the draw-bar and located on each side of the member b. In the construction shown in Figs. 1 and 4, the member b is spherical and the bore b<1> sufficiently large to permit the movements of the draw-bar a, which is flanged at its ends a<3> to engage the inner cupmembers d and provided with collars a<1> to abut against the outer cup-members d. Tubes g leading from oil-cups h supply oil to the joints. In a modification, Fig. 5, the member b is made hemi-spherical, and the draw-bar a moves with one convex member f and a concave member d. In either construction, the draw-bar may, as shown in Fig. 6, be provided with a coupling hook l and buffing or draw-springs m may be located between shoulders on the draw-bar and the cup-like members d. A centralizing coil spring n or leaf springs may also be arranged between the joint and the flange b<2> to restore the draw-bar to its normal position, or the flange b<2>, instead of being rigidly connected to the vehicle frame, may be connected by two centralizing springs. In a further modification, the connecting flanges b<2> are dispensed with, and the member b supported from the vehicle frame on trunnions.
Patent GB-247822-A (GB)
Title: Improvements in navigational instruments
IPC: G01C21/02
Filed: 1925-06-30
Abstract: 247,822. Browning, J. B. June 30, 1925. Protractors. - Comprises an instrument for determining the position of a ship by plotting astronomical position lines. A revoluble and graduated azimuth or bearing-bar C has arranged on it at right-angles thereto a position-bar F which is adjustable along the bearing-bar, to enable the intercept between the observation position and the dead-reckoning position to be set off. The point of intersection of lines drawn as the result of two simultaneous observations gives the ship's observation position in relation to the dead-reckoniing position, situated at the axis of rotation of the azimuth bar. The bars C, F are supported on a pivot H above a compass diagram B on a board A. The outer end of the bar is supported by a wheeled strut J and the whole may be lifted off the pivot H for storage.
Patent GB-686232-A (GB)
Title: Improvements in the manufacture of vinylic polymers and copolymers
IPC: C08F14/06
Filed: 1948-06-22
Abstract: Polymers and copolymers of vinyl chloride are made by first passing the vinyl chloride over activated carbon heated to temperatures between 30 DEG  and 80 DEG  C. and effecting the subsequent polymerization of the vinyl chloride alone or admixed with another copolymerizable monomer, e.g. vinyl acetate and vinylidene chloride, in the presence of a peroxide catalyst, e.g. benzoyl peroxide, and a stabilizing agent capable of fixing acid liberated during the reaction, the stabilizing agent being introduced in the form of a solution or dispersion in one or more solvents or dispersing media miscible with vinyl chloride and in an amount strictly limited to the quantity necessary for dissolving or dispersing the stabilizing agent.  The stabilizing agent and solvent or dispersing media may be copolymerizable with the vinyl chloride.  Specified stabilizing agents are lead acetate, sodium acrylate, sodium furoate and the cobalt, manganese or lead salts of oleic or linoleic acids. Specified solvents or dispersion media are vinyl acetate, acetic, linoleic, and oleic acids.  The stabilizer may be introduced at any stage of the polymerization. In the preparation of the copolymers, the particle size of the final product may be controlled by pretreating the other monomer to alter its induction period and/or rate of polymerization in relation to the induction period of the vinyl chloride.  In the case of vinyl acetate and vinylidene chloride lengthening of the induction period is effected by agitating the monomer with a saturated solution of a copper or zinc salt, e.g. acetate, in acetic acid.  When the induction period of the monomers are similar the copolymer is obtained as a fine powder, when slightly different, as pellets.  The copolymers may be used in injection moulding and extrusion.  Specifications 606,116 and 685,035, [Group II], are referred to.
Patent GB-255059-A (GB)
Title: Improvements in or relating to dry charged battery plates
IPC: H01M4/22
Filed: 1926-07-05
Abstract: 255,059. Silica Gel Corporation, (Assignees of Hutchinson, E. W.). July 13, 1925, [Convention date]. Electrodes.-Charged accumulator plates are dried by the application of an absorptive material which excludes air sufficiently to prevent oxidation of the active material. In an example, the charged plates are removed from the electrolyte, washed and placed in a container and covered with granulated silica gel. Other substances which may be used instead of silica gel are sawdust, gypsum, lime, aluminium oxide, bauxite, and dried cereals.