baber/WOPTO huggingface dataset:
Patent GB-1342866-A (GB)
Title: Process for preparing 5-hydroxy-1-tetralone and derivatives thereof
IPC: C07C45/00
Filed: 1972-04-17
Abstract: 1342866 5-Hydroxy-1 -tetralone and derivatives WARNER-LAMBERT CO 17 April 1972 [25 May 1971] 17659/72 Heading C2C In a process for preparing 5-hydroxy- 1 - tetralone an aqueous alcoholic solution of 1,5- dihydroxy-naphthalene is reacted with gaseous hydrogen in the presence of a palladium reducing catalyst and an equimolar quantity of an alkali metal hydroxide until one molar proportion of hydrogen has been absorbed. The product is reacted with epichlorhydrin to obtain 2,3 epoxypropoxy - 1 - tetralone and the latter is reacted with an appropriate amine to obtain a 3,4-dihydronaphthalenoneoxy-2-hydroxypropylamine, e.g. 3,4-dihydronaphthalenone - oxy - 2 - hydroxy - (N - tert - butyl)- propylamine.
Patent GB-568887-A (GB)
Title: Sound operated electric gear
IPC: H04Q1/446
Filed: 1942-12-14
Abstract: 568,887. Controlling apparatus by sound. TELCS, M. L. Dec. 14, 1942, No. 17741. [Class 40 (i)] In a system for controlling, e.g. typewriters, by sounds, frequency-separation of the resulting sound currents is facilitated by multiplying the frequencies of these currents and subtracting a fixed frequency. This may be done by apparatus shown in Fig. 3 in which a thermionic tube VI, organized so that a strong double-frequency component appears in its ouput circuit, is coupled to a heptode mixer, the inner grids of which are coupled as shown to generate a frequency of (say) 400 cycles. The difference frequencies are selected and have a greater percentage separation than the original frequencies. A separate frequency-converting system may be used for each of several microphones which are themselves made strongly selective. Specification 568,912 is referred to.
Patent GB-1346464-A (GB)
Title: Triazinylaminoalkyl and triazinylaminoalkoxyalkyl phosphonates and their use for the flameproofing of textiles
IPC: D06M15/432
Filed: 1971-05-28
Abstract: 1346464 Triazinylamino alkyl and triazinylamino alkoxyalkyl phosphonates STAUFFER CHEMIkAL CO 28 May 1971 [26 June 1970] 17781/71 Heading C2P [Also in Vivision D1] The invention comprises compounds of Formula I where A, B and C are halogen or -NR<SP>1</SP>R<SP>2</SP>, at least one of A, B and C being -NR<SP>1</SP>R<SP>2</SP>, where R<SP>1</SP> and R<SP>2</SP> are hydrogen, C 1-18  alkyl, hydroxyalkyl or alkoxymethyl, methylene, methyleneoxymethylene or Z, where Z is a radical of the formula -(CH 2 O) n CR<SP>3</SP>R<SP>4</SP>P(OR<SP>5</SP>)(OR<SP>6</SP>), where n is 0 or 1, R<SP>3</SP> and R<SP>4</SP> are hydrogen or C 1-18  alkyl and R<SP>6</SP> and R<SP>6</SP> are C 1-18  alkyl or alkoxyalkyl, allyl, C 2-18  2-haloalkyl or 2-hydrokyalkyl, or aryl with the proviso that the molecule contains at least one Z group, and that where R<SP>1</SP> and or R<SP>2</SP> is methylene or methyleneoxymethylene, the remaining valence thereof is connected to a further triazine nucleus as here defined. Compounds of Formula I in which R<SP>6</SP> and R<SP>6</SP> are alkyl may be prepared by reacting (a) a methylolmelamine with a trialkylphosphite, (b) an alkoxymethylol melamine with (1) a dialkyl phosphorochloridite or (2) the equivalent amount of a mixture of a trialkyl phosphite and a phosphorus triahlide, (c) cyanuric chloride with a dialflyl 1-aminoalkylphosphonate, and optionally, at least one reactant NHR<SP>1</SP>R<SP>2</SP>, (d) an alkoxymethylmelamine with phosgene to produce a chloromethyl melamine which is then reacted with a trialkyl phosphite, (e) an alkoxymethylmelamine with a dialkyl phosphite, (f) an alkoxymethylmelamine with a trialkyl phosphite and a proton donor and (g) either a methylol melamine or an alkoxymethylmelamine with a dialkyl 1-hydroxyalkylphosphonate in the presence of an acid catalyst. Compounds of Formula I in which R<SP>5</SP> and R<SP>6</SP> are other than alkyl may be prepared by analogous methods. The invention also comprises a mixture of at least two compounds of Formula I in which A, B and C are all NR<SP>1</SP>R<SP>2</SP> where R<SP>1</SP> and R<SP>2</SP> are hydrogen, methylol, C 1-12  alkoxymethyl, methylene, methyleneoxymethylene or Z<SP>1</SP> where Z<SP>1</SP> is a radical of formula provided that from 1 to 5 of the R<SP>1</SP> and R<SP>2</SP> groups is Z<SP>1</SP>, at least 1 is methylol or C 1-6  alkoxymethyl and no more than 2 are hydrogen. The invention also comprises a solution of a compound of Formula I or of the above-described mixture in water, an organic solvent or a mixture thereof. The compounds and mixtures of the invention may be used as flame retardants, especially for textile materials, and those compounds and mixtures of the invention in which at least one of A, B and C is halogen have herbicidal properties.
Patent GB-401792-A (GB)
Title: Improvements in and relating to pistons for fluid pressure engines
IPC: F16J1/00
Filed: 1932-06-24
Abstract: 401,792. Pistons. HOBBIES, Ltd., Dereham, Norfolk, and LANCASTER, E., 14, Queens Road, Lowestoft. June 24, 1932, No. 17854. [Class 122 (i).] In a built up piston in which lugs 8 on the head co-operate with a waist portion 3 of the skirt to form a bearing for the gudgeon pin, the waist is extended at 5 beyond the junction of the waist portion and a cone 2, connecting the waist to the upper bearing portion 1, to ensure a complete bearing for the pin in the skirt. The extensions 5 may be formed as separate members secured to the skirt or the skirt may be formed as two telescopic members, the lower member being formed with extensions 5. Alternatively the parts 5 may be pressed from the cone portion 2. In a modification the angle of the cone is reversed.
Patent GB-530836-A (GB)
Title: Improvements in and relating to the preservation of latex
IPC: C08K5/138
Filed: 1939-06-19
Abstract: 530,836. Preserving rubber latex. MONSANTO CHEMICAL CO. June 19, 1939, No. 17891. Convention date, June 20, 1938. [Class 70] Rubber latex is preserved from coagulation and putrefaction by adding thereto a small quantity of a water soluble or dilute alkali soluble salt of a tetra- or penta-chlorophenol or a mixture thereof. Examples are given of the use of the sodium salt alone or with a small quantity of ammonia. The potassium, ammonium, barium and calcium salts may also be used.
Patent GB-810205-A (GB)
Title: Improvements relating to water heating boilers
IPC: F24H1/32
Filed: 1955-06-21
Abstract: 810,205. Sectional boilers. ARCRAFT WELDING Ltd., DAVIS, J. H., and CARPENTER, H. J. June 21, 1956 [June 21, 1955], No. 17928/55. Class 123(2) In a sectional water heating boiler comprising flat vertical sections 1, T- shaped water inlet and outlet pipes 2, 3 are provided at identical points on each section so that when the sections are assembled the respective pipes are disposed in alignment and are connected by readily dismountable expansion joints 4 to constitute inlet and outlet manifolds. On their inner faces the sections have brackets 5 to support firebars 6. The rear section of the boiler is in the form of a water-jacketed flue 9 through which combustion gases discharge into .a soot box 11.
Patent GB-695075-A (GB)
Title: Improvements in phase-shifting circuits
Inventor: LUDBROOK LESLIE CARTER
IPC: H02M1/04
Filed: 1951-08-01
Abstract: 695,075. Phase-shifting circuits. BRITISH THOMSON-HOUSTON CO., Ltd., May 7, 1952 [Aug. 1, 1951], No. 18235/51. Class 40 (viii). A phase-shifting bridge circuit comprises two adjacent arms S1, S2 constituted by the centre-tapped secondary winding of transformer T, to the primary winding P of which is applied the input A.C. potential. The other two arms of the bridge consist of the reactive arm, being the condenser C, and of the non-reactive arm comprising the unidirectionally conducting paths formed by triode V and diode D connected in reverse parallel relation. The phase-adjusted output of the bridge is obtained between the centre-tap between windings S1, S2, and the (preferably earthed) line L, blocking circuit C2, R1 and filter circuit R2, C3 being provided. Control of the phase-shift is effected by the D.C. potential applied to the grid of triode V, the phase range being from in phase with winding S1 when valve V is fully conducting, to 180 degrees lagging with winding S1 when valve V in the cut-off condition. Specification 613,049, [Group XXXVII], is referred to.
Patent GB-1038655-A (GB)
Title: Electric switch
IPC: H01H1/50
Filed: 1964-05-01
Abstract: 1,038,655. Retractive switches; contactmembers for switches. ROBERTSHAW CONTROLS CO. May 1, 1964 [May 2, 1963], No. 18269/64. Heading H2B. Contact bounce in a switch suitable for computers or electric typewriters, for example, is prevented by the provision of a two-pronged resilient member 20 overlying one of the contacts such that it is engaged prior to the contacts making, the two prongs 22 and 24 (Fig. 2, not shown) being of different widths or masses to have different resonant frequencies. The member 20 may be made of spring silver sheet material 0À004 inch thick, with gold plating. In the switch shown, a plunger 90 moves a resilient arm 78 to cause an over-centre C-spring 72 to change-over the contact-carrying blade 60 with a snap action. Blade 60, arm 78, and fixedcontact supports 34 and 36 are tightly held in recesses between upstanding formations 40, 42 and 44 and a cover (Fig. 13, not shown) is located on ledges 31B, 30B and 33B, and retained by screws engaged in holes 98. A pair of ears 91 are provided with holes 89 to pivot an actuating lever (not shown). An antibounce prong member may be provided on each fixed contact (Fig. 5, not shown), or alternatively the prong members may be carried on the moving contacts (Fig. 6, not shown).
Patent GB-925416-A (GB)
Title: Thermal insulation
IPC: F17C13/00
Filed: 1960-05-24
Abstract: 925,416. Heat insulation for liquefied gas containers. UNION CARBIDE CORPORATION. May 24, 1960 [July 2, 1959], No. 18353/60. Class 8(2). A method of producing a heat-insulating structure for insulating liquid gas vessels comprises inserting a composite insulation 112 consisting of alternate layers of low-conductive fibrous material 113 and heat reflective foils 114 preferably perforated to assist in the evacuation of residual gases from the space formed between a cold wall 110a and an outer wall 110b and thereafter sealing and evacuating the space containing the insulating structure, the latter process being facilitated by a low flow resistance channel 116 formed between the outermost foil 113a and the outer wall 110b. The individual fibres of the fibrous material 113 are arranged substantially parallel to the foils 114 within the space between the cold wall 110a and the outer wall 110b. The separate fibres composing the fibrous layers 113 have a diameter of 0À2-5 microns and a sufficient number of heat reflective foils, each of which has a thickness of 0À002-0À2 mm. and an emissivity of 0À005-0À2, to provide for 5-50 foils per inch of thickness of the installed insulation, is installed in the wall space under elastic compression sufficient to provide an installed density of the fibrous layers of not less than 0À5 lbs. per cu. ft. whereupon the space between the walls 110a and 110b is evacuated to a pressure of less than 5 microns of mercury.
Patent GB-172349-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K23/20
Filed: 1920-07-02
Abstract: 172,349. Charlet, H. July 2, 1920. Exciting. - A selfregulating continuouscurrent dynamo-electric machine adapted to operate either as a motor or as a crossfield generator, is excited when operating as a generator by a fieldmagnet winding c, Fig. 3, connected across the working brushes 2, 2 in the neutral zone of the cross-field 1, 1 and acting in opposition to a field-magnet winding a connected to a constant source of potential B, and by a series field-magnet winding b carrying a part or the whole of the load current to compensate the armature reaction due to the load current. Instead of directly short-circuiting the brushes 1, 1, they may be connected to a fieldmagnet winding y which assists the winding a and contributes substantially that portion of the primary excitation which is balanced by the winding c. By suitably proportioning the different excitations the electromotive force at the working brushes may be maintained constant, or be caused to rise or fall with increasing speed, or increasing load. When the machine is to operate as a motor to start a petrol engine, current is supplied to the brushes 1, 1 from the battery B as shown in Fig. 6, and the winding b, either alone, or in series or parallel with the winding y, is connected in series with the brushes 1, 1. The field-magnet windings a, y, b, c all act together to produce a strong motor field. The winding c may be disconnected from the brushes 2, 2 and connected to the brushes 1, 1 when the machine is operating as a motor. In a modification, the machine is provided with a second armature winding having brushes 3, 3 and 4, 4, Fig. 9, in the neutral zones of the primary field and of the cross field respectively. The brushes 1, 1 and 3, 3 may be short-circuited and current may be taken from the brushes 4, 4. These brushes may be connected in series with the brushes 2, 2, or the two sets of brushes 2. 2 and 4, 4 may supply independent circuits. An additional field-magnet winding may be provided, connected in series with the brushes 4, 4 to .counterbalance the field produced by the armature current flowing between the brushes 4, 4. By means of resistances in the circuits of any of the field-magnet windings a, y, c, the electromotive force at the brushes 2, 2 may be increased for charging the battery B when the load circuit is disconnected from the machine.
Patent GB-923083-A (GB)
Title: Improvements in/or relating to the monitoring of fission products in a gaseous stream, particularly for detecting burst slugs in nuclear reactors
Inventor: GOUPIL JEAN
IPC: G21C17/04
Filed: 1959-05-29
Abstract: 923,083. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 29, 1959 [June 23, 1958], No. 18418/59. Drawings to Specification. Class 39 (4). In a gas-cooled nuclear reactor a fracture in a fuel element sheath is detected by measurement of coolant-gas radio-activity. Ions formed from the decay of gaseous short-lived fission products are carried by the coolant gas and directed by an electrostatic field on to a section of the periphery of a metal drum which is scanned by a scintillator detector. The coolant gas is passed first into a chamber where it remains for two seconds and the gaseous shortlived fission products (krytons and xenons) decay to form solid ions (barium, cesium, rubidium and strontium). The gaseous stream carries the ions into a collecting conduit where a positively charged electrode urges the positive ions towards the surface of metal drum on which they are adsorbed. After a collection period the drum is rotated to expose the radioactive area to a scintillation detector. Ions formed from long-lived fission products are removed, in the chamber, by a negatively charged electrode which is de-energized when the electrode in the collecting conduit is energized. Specifications 918,536 and 918,366 are referred to.
Patent GB-1493782-A (GB)
Title: Preparation of n-(aminoalkyl)piperazine
IPC: B01J27/00
Filed: 1976-05-05
Abstract: 1493782 N-(aminoalkyl)-piperazines TEXACO DEVELOPMENT CORP 5 May 1976 [2 June 1975] 18424/76 Heading C2C An N-(aminoalkyl)-piperazine is produced by contacting a piperazine compound with an aminoalkanol having a primary or secondary hydroxy group and a primary or secondary amino group, in the presence of a catalytically effective amount of a phosphorus-containing substance, at 250-350 C. under a pressure sufficient to maintain the mixture substantially in the liquid phase. The reaction can be selective to the mono-N-aminoalkylated compound or to the di-N,N<SP>1</SP>-aminoalkylated compound. The product in general has the formula and is prepared from an aminoalkanol R 2 HN-R-OH, and the corresponding piperazine compound; R is a branched or straight chain C 2 -C 10  alkylene radical, R 2  is hydrogen or a C 1 -C 18  alkyl radical, and each R 1 , which may be the same or different, is hydrogen or C 1 -C 5  alkyl. In examples N-(2-aminoethyl) piperazine is prepared from monoethanolamine and piperazine in the presence of phosphoric or phosphorous acid.
Patent GB-777471-A (GB)
Title: Improvements in or relating to bactericidal and bacteriostatic medicinal preparations of phenol
IPC: A01N31/08
Filed: 1954-06-23
Abstract: Non-poisonous bactericidal preparations of phenol suitable for use in the treatment of skin diseases and burns comprise a eutectic liquid mixture of phenol and a natural resin in which part of the phenol is chemically combined with the resin and the remainder is free.  Resins specified are colophony, dammar, Venice turpentine, rosin.  The phenol and resin are heated until molten and mixed while heating to 90-150 DEG  C. 19.02 Kg. crystalline phenol are melted with 26.27 kg. Venice turpentine and the mixture heated to 130-150 DEG  C. with continuous stirring; a syrupy golden mass is obtained.  During heating the mixture is preferably irradiated with ultra-violet light. Cresols may be employed instead of phenol.  The product may be worked into an ointment base.ALSO:Non-poisonous bactericidal preparations of phenol suitable for use in the treatment of skin diseases and burns comprise a eutectic liquid mixture of phenol and a natural resin in which part of the phenol is chemically combined with the resin and the remainder is free.  Resins specified are colophony, dammar, Venice turpentine, and rosin.  The phenol and resin are heated until molten and mixed while heating to 90-150 DEG C.  19.02 kg. crystalline phenol are melted with 26.27 kg.  Venice turpentine and the mixture heated to 130-150 DEG C.  During the heating the mixture is preferably irradiated with ultra-violet light.  A golden syrupy mass is obtained which may be worked into an ointment base. Cresols may be employed instead of phenol.
Patent GB-253377-A (GB)
Title: Manufacture of polyazo-dyestuffs
IPC: C09B35/46
Filed: 1925-07-20
Abstract: 253,377. Bloxam, A. G., (Chemische Fabrik Griesheim-Elektron). July 20, 1925. Polyazo dyes are obtained by coupling one molecule, of a tetrazo-compound with one molecule of 1 : 8-aminonaphthol-3 : 6-disulphonic acid in mineral acid solution and subsequently uniting the intermediate product with a mono-diazo compound and 1 : 8- or 1 : 5-naphthalenediamine. In an example, tetrazotized benzidine is coupled with the aminonaphthol-disulphonic acid in acid solution, and then with diazobenzene and 1 : 5- naphthalenediamine in alkaline solution. Other p-diamines may be used instead of benzidine, e.g. tolidine, dianisidine or diaminodiphenylamine. The diazobenzene may be replaced by the diazo derivatives of the toluidines, chloranilines, anisidines, and their homologues. The products dye cotton-wool mixtures bluish-black shades possessing a pronounced vivid lustre.
Patent GB-1424575-A (GB)
Title: Shaft seals
IPC: F16J15/24
Filed: 1973-04-17
Abstract: 1424575 Shaft seals REYROLLE PARSONS Ltd 1 April 1974 [17 April 1973] 18524/73 Heading F2B In a floating bushing seal, e.g. for a hydrogen cooled alternator, pads 12 are carried on a flexible band 15, which seals an annular lubricant chamber 14 and the lubricant chamber is in fluid communication with the seal interface. To provide a sufficient flow of lubricant for there to be a cooling effect on the gas side of the seal, an axial groove (22, Figs. 2 and 3, not shown) is formed on the atmospheric side. Leakage of oil, due to thermal expansion of the shaft 10, is minimized by using a multiplicity (e.g. 10) pads, so that the increase in the gap between each pair of pads is minimal. A white metal bearing surface 13 is provided and the small circumferential extent of each pad allows each to tilt slightly to form a hydrodynamic lubricating film.
Patent GB-1000164-A (GB)
Title: Improvements in closure seals
Inventor: HADLEY WILLIAM HENRY
IPC: B65D41/34
Filed: 1963-05-10
Abstract: 1,000,164. Closure caps. METAL CLOSURES Ltd. April 16, 1964 [May 10, 1963], No. 18548/63. Heading B8T. A closure cap, suitable for vacuum sealing a container with a threaded neck, comprises a disc member 2, Fig. 1, and an outer shell 1 of thin aluminium having a removable band 6 marked off at the lower margin of the shell by an interrupted slit line 7, and co-operating with a neck projection 6<SP>1</SP>. The disc member is fitted in a groove 10 in the outer shell so that the seal is only broken when rupture of the band has commenced and when rib 11 contacts the disc. The shell may be threaded in situ on the container by a rolling operation. In modifications, the slit line may be replaced by a tear strip; and the removable band affixed to the container neck by circumferentially spaced interengaging projections. The outer shell and disc may be shaped to facilitate stacking of the containers. Specifications 369,494, 814,437, 895,191 and 974,564 are referred to.
Patent GB-237294-A (GB)
IPC: C09B57/12
Filed: 1925-07-21
Abstract: Vat-dyestuffs are produced by condensing the dianhydride of naphthalene-1 : 4 : 5 : 8-tetracarboxylic acid, with o-diamines; the reaction may take place in the presence or absence of a solvent or diluent.  In an example the dianhydride is condensed with o-phenylenediamine in nitrobenzene; the product dyes cotton in yellowish-red shades from a green vat.  The Specification as open to inspection under Sect. 91 (3) (a) refers to the use of the tetracarboxylic acid itself or substitution products thereof, and also to the use of salts of the o-diamines.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1441911-A (GB)
Title: Methods of and devices for obtaining information from records
IPC: G06K21/02
Filed: 1972-04-22
Abstract: 1441911 Record card and template G E DIGGLE 17 July 1973 [22 April 1972 10 Aug 1972] 18779/72 and 37425/72 Heading G4M A record card for use in selecting items having a predetermined collection of features is divided into areas corresponding to the items and each area is capable of being marked in correspondence with the feature. As described a card contains one thousand numbered rectangular areas arranged in twenty-five columns each containing forty rows. Each area can receive marks in ten predetermined locations. If an item having features A and B and C with either D or E or F is required record cards corresponding to the items and carrying information about the features are searched. Each area corresponds to a record card and four locations are selected which correspond three to features A, B, C respectively and one location which is marked if one or more of features D, E, F are present. When the search is complete it is easy to identify all areas containing the four necessary marks and near misses with only three marks are also identifiable. To mark the locations a template may be used. In one embodiment (Fig. 7) the card is located in a frame 216. The card has two corners cut away and in the areas exposed the frame has ten locating holes corresponding to the marking locations in each area. A template is provided with holes 223, 222 receiving pegs situated in one of the ten holes 218, 219 and has one hole in each area through which the card is marked. By locating holes 222, 223 against different ones of the ten holes 218, 219 all of the ten locations may be marked. In an alternative embodiment the template 234 has two holes 237, 238 for each area and has a slot receiving the card. The card near one edge has five parellel lines which are lined up with the template edge to locate five spaced locations beneath the holes.