baber/WOPTO huggingface dataset:
Patent GB-1060869-A (GB)
Title: Method and apparatus for extruding tubular members from solid billets
IPC: B21C25/00
Filed: 1964-10-20
Abstract: 1,060,869. Billet piercing; extruding. REYNOLDS METALS CO. Oct. 20, 1964 [Oct. 21, 1963], No. 42792/64. Headings B3H and B3P. In the extrusion of a tube from a solid billet, the latter is first pierced by a mandrel 29 and then extruded by a stem 37 between the mandrel tip 30 and a die 27. The latter is mounted in a holder 25 and supported by bolsters 16-21. Mandrel 29 comprises separable portions 30-36 and is actuated hydraulically, pneumatically or mechanically. Lands 45 on the mandrel engage the bore of the press stem 37 to centre the tip 30 in the die 27. Stem 37 is also actuated hydraulically, pneumatically or mechanically and has a dummy block 47 with inner and external lands engaging respectively the mandrel and the bore 15 of container 13, 14. Billet 15 may be of aluminium-containing metal and is heated. The extruded tube has a closed leading end and to relieve the vacuum therein, its wall is pierced by a bullet from a cartridge device 61 as described in Specification 1,060,870.
Patent GB-1147257-A (GB)
Title: Method and system for cracking hydrocarbons
Inventor: MITCHELL JOHN GRANT
IPC: B01J8/38
Filed: 1967-09-20
Abstract: 1,147,257. Catalytic cracking. MOBIL OIL CORP. 20 Sept., 1967, No. 42864/67. Heading C5E. A catalytic hydrocarbon conversion process comprises passing hydrocarbon vapour through an arranged series of dilute phase riser reactors through which series catalyst passes generally countercurrent to the flow of hydrocarbon vapours but concurrently with hydrocarbon vapour through any one reactor, the temperature at which vapour contacts catalyst in the individual reactors being progressively decreased in the direction of vapour flow through the series of reactors. The reactors may be followed by series of catalyst strippers and regenerators. The feed may be preheated by inert solid or partially pre-cracked by another catalyst in a preliminary stage which may also be provided with strippers and regenerators.
Patent GB-928170-A (GB)
Title: Improvements in or relating to chromium oxide pigments
Inventor: FURNESS WALTER
IPC: C09C1/34
Filed: 1960-12-14
Abstract: Chromium oxide powder is separated into fractions of different particle size by suspending the chromium oxide powder in an aqueous solution of an ampholyte in anionic form, subjecting the suspension to gravitational or centrifugal hydroseparation to obtain a fraction of particles having diameters less than 5 microns, and then causing flocculation of these particles still suspended in the solution by adjustment of the pH to below the isolectric point of the ampholyte. The ampholytes used have a basic nitrogen atom, an alkyl or alkenyl chain of 8 to 18 carbon atoms and an ionizable carboxylate group attached to the basic nitrogen atom by a bridge of at least one carbon atom.  Suitable ampholytes have the formulae: <FORM:0928170/III/1> where R1 is an alkyl or alkenyl radical of 8 to 18 carbon atoms, R2 is hydrogen or -CHR3.CH2.COOH, and R3 is hydrogen or -CH3; (ii) <FORM:0928170/III/2> where R4 is an alkyl or alkenyl radical of 8 to 18 carbon atoms and X is hydrogen, an alkali metal or -CH2COOH; (iii) <FORM:0928170/III/3> where R5 is an alkyl or alkenyl radical of 12 to 18 carbon atoms.  The suspension of chromium oxide in the solution of ampholyte may be caused to flow up a vertical tube at such a rate that the suspension recovered at the top contains only those particles with diameters not exceeding 5 microns; acid is then added to flocculate the particles which are allowed to settle and are separated from the solution.  Examples are given.ALSO:Chromium oxide powder is separated into fractions of different particle size by suspending the chromium oxide powder in an aqueous solution of an ampholyte in anionic form, subjecting the suspension to gravitational or centrifugal hydroseparation to obtain a fraction of particles having diameters less than 5 microns, and then causing flocculation of these particles still suspended in the solution by adjustment of the pH to below the isoelectric point of the ampholyte.  The ampholytes used have a basic nitrogen atom, an alkyl or alkenyl chain of 8 to 18 carbon atoms and an ionisable carboxylate group attached to the basic nitrogen atom by a bridge of at least one carbon atom. The suspension of chromium oxide in the solution of ampholyte may be caused to flow up a vertical tube at such a rate that the suspension recovered at the top contains only those particles with diameters not exceeding 5 microns; acid is then added to flocculate the particles which are allowed to settle and are separated from the solution. Examples are given.
Patent GB-1304724-A (GB)
IPC: C08K5/42
Filed: 1970-09-09
Abstract: 1304724 Polyolefin compositions MOBIL OIL CORP 9 Sept 1970 [9 Oct 1969] 43163/70 Heading C3P Compositions comprise a polyolefin, a phenolic antioxidant which tends to discolour the composition and a surfactant to inhibit discoloration selected from N-hydrocarbyl-N- acyl taurate salts RCONR<SP>1</SP>C 2 H 4 SO 3 M where R is C 7-31  alkyl, cycloalkyl or unsaturated aliphatic radical, R<SP>1</SP> is C 1-12  alkyl, cycloalkyl or aryl and M is alkali metal or alkaline earth metal, and C 8-32  alkyl betaines. The polyolefin may be a polymer of ethylene, propylene and/or butene-1. The preferred antioxidant is 2,6- di-t-butyl-p-cresol. The compositions may also contain extenders, e.g. graphite, diatomaceous earth, clays, quartz, sand, metal powders, metal oxides, gypsum, calcium carbonate, wood flour, marble flour, sawdust, mica, ground cork, wood pulp and walnut shell flour; organic and inorganic pigments; and reinforcing fillers, e.g. fibres of wood, glass, cotton, hemp, asbestos, nylon, polyethylene terephthalate or acrylonitrile polymers; and may be moulded into floor tiles, table coverings or counter tops. Examples describe compositions comprising 2,6-di-t-butylp-cresol, chrysotile asbestos and calcium carbonate together with (1) polybutene-1 and sodium N-methyl-N-oleoyl taurate and (2) polybutene-1 and cetyl betaine.
Patent GB-1163766-A (GB)
Title: Process for Forming Sintered Metal Coatings
IPC: B22F7/04
Filed: 1966-09-28
Abstract: 1,163,766. Sintered metal coatings. TEXAS INSTRUMENTS Inc. Sept. 28, 1966 [Oct.13, 1965] , No.43385/66. Heading C7D. A metal substrate such as strip steel or stainless steel is coated with a slurry of a metal powder and a binder, the slurry is dried, squeezed on the substrate as by rolling with sufficient force to reduce the thickness of the substrate and the layer and then heated to sinter the coating. The metal of the coating may be a single metal, an alloy powder or several metal powders as a mixture and the binder may be polyethylene oxide, methyl-cellulose, non- ionic cellulose ether or polyvinyl pyrrolidone with water or alcohol. The powders specified are Ni, Cu, A1, Fe, Sn, B, Si, Cr or alloys or mixtures of these, the powder size being 15 to 44 microns. As shown in Fig. 1 the slurry 5 is roller coated on to both sides of strip 23, dried in furnace 31, rolled by rolls 41, 43 to a thickness reduction of 10-20% to give a coating density of 90% theoretical. Sintering is effected in furnace 49 the coated base being sintered as a strip or as a coil, the furnace atmosphere being H 2 , N 2  or cracked NH 3 . Further rolling to 20% reduction in thickness is effected by rolls 53, 55. In the case of forming an alloy coating by applying a slurry of mixed powders the sintering after the first rolling is carried out in two stages (see Fig. 4, not shown). In the first sintering stage the temperature is insufficient to cause alloying of the elemental powders and the coating is then rolled to effect e.g. a 40% reduction in thickness. A final sintering is then effected to cause alloying of the powders.
Patent GB-1153676-A (GB)
Title: Dosimeter Incorporating an Electro-Chemical Integrating Device
IPC: G01T1/18
Filed: 1967-09-25
Abstract: 1,153,676. Radiation dosimeters. UNITED STATES ATOMIC ENERGY COMMISSION. Sept. 25, 1967 [Oct.17, 1966], No.43523/67. Heading G1A. [Also in Divisions H2 and H3] A dosimeter comprises a nuclear radiation detector and electro-chemical current integrator of the type in which detector pulses are fed to an input electrode to vary the resistance between a readout electrode and a common electrode in proportion to the current integral of the pulses. A geiger tube 51 is fed from a D o  C. source B+ by a D.C. to D.C. converter comprising a multivibrator 26-33, a transformer 34, bridge rectifier 35-38 and a smoothing and stabilizing circuit 42, 43. The geiger tube pulses are differentiated by a differentiator 66, 67 and the + and - spikes produced set and reset a bi-stable Schmitt trigger 52-62 to produce pulses of standard amplitude which are fed to the input electrode 103 of the integrator 101. To compensate for the fall off in counting efficiency of the tube 51, at high count rates, a current proportional to the D.C. through the tube 51 is fed through diode 76 to the input electrode 103. As the integrator 101 integrates its input the resistance between electrodes 105 and 106 changes, controlling the current that flows through transistor 112 to operate a meter 102. Thermistor 119 compensates for the temperature sensitivity of the integrator read out. When the current through transistor 112 reaches a predetermined level, the output of transistor 126 makes tunnel diode 129 conduct to fire the S. C.R. 131. The diode 128 provides added voltage to the valley characteristic of the tunnel diode 129. Firing of S.C.R. 131 a multi-vibrator 132- 141 to oscillate and produce an audible alarm in loudspeaker 144. The geiger tube may be replaced by gas filled counters in general, a semiconductor or a scintillation counter.
Patent GB-1069880-A (GB)
Title: Improvements relating to structural members and units for forming such structural members
Inventor: BARTON PETER
IPC: F16G13/18
Filed: 1963-11-05
Abstract: 1,069,880. Linkwork. B. C. BARTON & SON Ltd. Oct. 19, 1964 [Nov. 5, 1963], No. 43620/63. Heading F2K. A strut is composed of two chains of units 12 each unit of which consists of a channel-shaped member having ends which are pivotally connected to adjacent members by pins 13 and having transverse pins 14 and pairs of coaxial jaws by means of which the two chains are interconnected. Either the unit 12 tapers in the direction of its length, or the side plates are joggled.
Patent GB-918908-A (GB)
Title: Improvements in or relating to particle detectors
IPC: G01N21/53
Filed: 1961-12-06
Abstract: 918,908. Photo-electric particle detectors. PYROTECTOR Inc. Dec. 6, 1961 [March 9, 1961], No. 43685/61. Class 40 (3). Apparatus for detecting by photo-electric means particles suspended in a fluid comprises a housing forming a dark chamber 24 through which the fluid passes, a light source 14 projecting a beam across the chamber on to an opposite surface, a detector 16 which views the chamber in a direction perpendicular to the beam and a lens 40 which focuses the image of the detector through the beam to a point beyond the beam, the detector being shielded from the direct view of the source 14 and from the surface onto which the beam is projected. In the embodiment shown, to reduce the amount of stray light reaching the detector, the beam from a lamp 14 is focused by a lens 36 carried in a tube 32, to a minimum size on the bottom of a light trap tube 34 and the detector 16 is carried in a tube 38 one side of which is extended to form a shield 42, the other side forming an inclined shield 44, these shields preventing stray light from the focusing tube 32 and the light trap 34, from reaching the detector. The detector may be a photoresistive cell preferably of the cadmium sulphide type.
Patent GB-990973-A (GB)
Title: Dyestuffs containing polyalkyleneamine groups
IPC: C09B69/00
Filed: 1961-04-18
Abstract: N - decyl - N1,N1 - diethyl - 1,3 - propanediamine is prepared by reacting 1-bromodecane with an excess of N,N-diethyl-1,3-propanediamine.  N - (2 - cyanoethyl) - N - decyl - N1,N1 - diethyl - 1,3 - propanediamine is prepared by refluxing N - decyl - N1,N1 - diethyl - 1,3 - propanediamine with acrylonitrile.  N - (3 - aminopropyl) - N - decyl - N1,N1-diethyl -1,3-propanediamine is prepared by reducing N - (2 - cyanoethyl) - N - decyl - N1,N1-diethyl -1,3-propanediamine with lithium aluminium hydride.  N1 - (3 - diethylaminopropyl) - N1 - decylsulphanilamide is prepared by condensing N-decyl - N1,N1 - diethyl - 1,3 - propanediamine with p-acetylaminobenzenesulphonyl chloride and hydrolysing the acetylamino group in the product with aqueous hydrochloric acid.ALSO:The invention comprises dyes which are insoluble in water at a pH above 7 and soluble at a pH below 7 of formula <FORM:0990973/C4-C5/1> wherein M is an organic dyestuff residue, R1 and R11 are C1-C18 alkyl radicals, m is 2 or 3 and p and n are integers less than 6.  The dyes are prepared by (a) diazotizing an amine containing a group of formula <FORM:0990973/C4-C5/2> and coupling with a coupling component or by condensing the said amine with an organic dye containing a carboxylic or sulphonic acid or acid halide group or a <PICT:0990973/C4-C5/1> group wherein X is a halogen atom.  The dyes are used in photographic reproduction processes (cf. Specification 990,972). In examples: (1) N1 - (4 - decyl - 8 - ethyl -4,8 - diazadecyl)-sulphanilamid is diazotized and coupled with 4,41 - bis - o - acetoacetotoluidide to form a disazo dye; (2) equimolar amounts of 1-aminoanthraquinone and isophthaloyl chloride are condensed to give the mono-acid chloride which is further condensed with N-(3-aminopropyl)-N - decyl - N1,N1 - diethyl - 1,3 - propanediamine; (3) Alizarin Rubinol (C.I. 68215) is treated with phosphorus pentachloride to give the corresponding sulphonyl chloride which is condensed with N - (3 - aminopropyl) - N - decyl - N1,N1 - diethyl - 1,3 - propanediamine to give 11 - methyl - 4 - [2 - (4 - decyl - 8 - ethyl - 4,8 - diazadecylsulphamyl) - 4 - toluidinyl] - anthrapyridone; (4) quinacridone is treated with chlorosulphonic acid to give a bis-sulphonyl chloride derivative which is condensed with 2 mols. of N-(3-aminopropyl)-N-decyl-N1,N1-di -ethyl-1,3-propanediamine; (5) copper phthalocyanine is chloromethylated as described in Specification 586,340 or chlorosulphonated as described in Specification 515,637 and the product condensed with N-(3-aminopropyl)-N-decyl - N1,N1 - diethyl - 1,3 - propanediamine.
Patent GB-885950-A (GB)
Title: Process for the manufacture of cyclic amides
Filed: 1959-12-29
Abstract: The invention comprises (1) sulphamyl-nitrobenzene derivatives of the formula <FORM:0885950/IV (b)/1> wherein R1 and R4 each represent hydrogen or aliphatic or araliphatic hydrocarbon radicals optionally substituted, for example, by halogen atoms or by alkoxy, carboxyl, carboxylic ester, thioether, amino, acyl, nitro and alkylenedioxy groups, R2 represents hydrogen, a hydrocarbon radical optionally substituted, for example, by halogen atoms (including fluorine) or by amino, hydroxy, acylamino, acyloxy, carboxyl, carboxylic ester, alkoxy, alkylenedioxy, nitro, mercapto or alkoxycarbonic acid radicals, or a substituted or unsubstituted heterocyclic radical, for example, pyridyl, thienyl, furyl, quinolyl, pyrrolidino, piperidino, hydroxy or acetoxy piperidino, morpholino, hexamethyleneimino, piperazino and hydroxy or acetoxy piperazino, and R3 represents halogen (including fluorine), or an alkyl or halogen alkyl group, for example, trifluoromethyl; (2) the preparation of sulphamyl-nitrobenzene derivatives as defined in (1) by reacting a 2 : 4-dihalogen-5-R3-nitrobenzene with a mercaptan of the formula R-SH or with a halide of the formula R-Halogen in the presence of thiourea (where R represents an aliphatic or araliphatic hydrocarbon radical), oxidizing and halogenating the resulting 2 : 4-di-R-mercapto-5-R3-nitrobenzene, reacting the resulting 5-R3-nitrobenzene-2 : 4-disulphonyl halide with a compound of the formula R1-NH2 and reacting the resulting compound of the formula <FORM:0885950/IV (b)/2> with an aldehyde of the formula R2-CHO; and (3) the preparation of 3 : 4-dihydro-1 : 2 : 4-benzothiadiazine-1 : 1-dioxides of the formula <FORM:0885950/IV (b)/3> or a salt thereof (R1 to R4 being as defined in (1)) by simultaneously reducing and ring closing a compound of the formula <FORM:0885950/IV (b)/4> by means of a hydrogenation treatment.
Patent GB-984015-A (GB)
Title: Improvements in or relating to the manufacture of polyurethanes
Inventor: IBBOTSON ARTHUR
IPC: C08G18/50
Filed: 1961-12-11
Abstract: Polyethers which contain at least two hydroxyl groups and also at least one hydrazine grouping are prepared by reacting hydrazine or a substituted hydrazine containing at least two active hydrogen atoms with 2-20 mols. of a 1 : 2 alkylene oxide.  The polyether may have the formula <FORM:0984015/C2/1> wherein X1, X2, X3 and X4 are each a substituted or unsubstituted alkyl, cycloalkyl or aryl radical, hydroxy alkyl or hydroxy poly (alkyleneoxy) alkyl of general formula <FORM:0984015/C2/2> where n is an integer and R is hydrogen or a C1-4 alkyl group, at least 2 of the radicals X1, X2, X3 and X4 being hydroxy poly (alkyleneoxy) alkyl radicals as defined.  In an example propylene oxide was reacted with hydrazine to produce a polyether of hydroxyl value 527. Specification 852,607 is referred to.ALSO:Polyurethanes which may be cellular are produced by the interaction of a polyisocyanate and a polyether which contains at least two hydroxyl groups and at least one hydrazine group.  The polyether may have the general formula <FORM:0984015/C3/1> wherein X1, X2, X3 and X4 each represent a substituted or unsubstituted alkyl, cycloalkyl or aryl radical, a hydroxyalkyl or hydroxypoly (alkyleneoxy) alkyl radical of general formula <FORM:0984015/C3/2> wherein n is an integer and R is hydrogen, a lower alkyl radical, an aryl radical or a halogenor aryl-substituted lower alkyl group, at least 2 of the radicals X1, X2, X3 and X4 being hydroxypoly (alkyleneoxy) alkyl radicals as defined.  The polyether may be produced by the reaction of a 1 : 2-alkylene oxide with hydrazine or a substituted hydrazine containing at least 2 active hydrogen atoms, then being from 2-20 molecular proportions of alkylene oxide for each active hydrogen atom in the hydrazine compound.  Preferred oxides are: propylene oxide, butylene-1 : 2 and 2 : 3-oxides, and epichlorohydrin.  The polyurethane may be prepared in the presence of water and/or a low-boiling liquid to produce a foamed product. Suitable polyisocyanates are specified. Additional ingredients may be:  flameretarders, e.g. tri(chloroethyl) phosphate, extenders, e.g. tricresyl phosphate, structure modifiers, e.g. polysiloxanes and block copolymers thereof with polyalkylene oxides, emulsifying agents, e.g. soaps or ethylene oxide condensates.  In an example, a polyether was prepared from propylene oxide and hydrazine and was then reacted with a mixture of diphenylmethane diisocyanate, water and a polysiloxane-polyoxyalkylene copolymer surfactant to produce a foam.  The subject-matter of Specification 852,607 is disclaimed.
Patent GB-1284074-A (GB)
Title: Improvements in apparatus for storing information
Inventor: PRUTTON MARTIN
IPC: G11C11/18
Filed: 1968-09-17
Abstract: 1284074 Magnetic storage arrangements NATIONAL RESEARCH DEVELOPMENT CORP 19 Nov 1969 [17 Sept 1968] 44202/68 Heading H3B [Also in Division H1] A storage array comprises a plurality of thin magnetic film storage elements 10, 11, 15, Fig. 1, each having a closed loop easy axis path in the plane of the film, and a selective readout arrangement in which a change in the closed loop flux produces a Hall voltage or a change in magneto resistance in an adjacent semi-conductor strip 13, 14. A portion of a storage matrix is shown in which writing is effected as described in Specification 1,284,075, the elements 10, 11 being shown as storing a "1" and a "0" respectively. A current producing a magnetic field in direction 12 is applied to a word-read conductor 41, 42 to read-out, this field increasing the magnetization 16 coupled with strip 13 and reducing that magnetization 17 coupled with strip 14. The junction between the films 10, 11, 15 and the associated strip is convoluted as shown in Fig. 2 so that the magnetization 16, 17 passes through the semi-conductor strip at peaks 25. By coincidently passing current through a selected word-read conductor and a semi-conductor strip, a Hall voltage orthogonal to both the penetrating magnetization and the semi-conductor current is produced. A modification is shown in Fig. 3 in which a change in the magnetizations 16, 17 produces a change in magneto-resistance of the associated strips 13, 14. Each strip may be the base of a transistor amplifier common to each strip of transistors may be formed each individual to a storage location along a strip, the strips being bounded by intrinsic semi-conductor material or semiconductor material of opposite conductivity type. Dummy semi-conductor lines 20, 21 may also be provided which also consitute the base of transistor amplifiers, the read-out and dummy amplifiers so formed by the strips 13, 20 14, 21 being paired to provide a differential amplifying circuit for suppressing noise. Individual storage films may be used or discrete storage locations in a common film.
Patent GB-1506855-A (GB)
Title: Electric current collecting pantograph
IPC: B60L5/26
Filed: 1975-11-14
Abstract: 1506855 Pantographs BRECKNELL WILLIS & CO Ltd 14 Nov 1975 [11 Oct 1974] 44220/74 Heading B7L A pantograph for an electric current collector head 8 engageable with an overhead conductor, comprises a base frame 1 mountable by insulators 2 on the roof of an electric railway vehicle; a lower hollow arm 3 pivoted at one end to the frame 1 on an axis 4; an upper arm 5 pivoted at 6 at one end to the other end of the arm 3 about a second axis 6, the arms 3, 6 being substantially of the same length and the colleetor head 8 being mounted on a cross-bar 7 at the other end of the arm 5; an inextensible tension linkage in the form of a rod 9 and chains 11 extending through the arm 3 and coupling, directly at 10 the frame 1 with an extension 12 of the arm 5 beyond the pivot axis 6; and tension springs 15 each mounted at one end at 16 to the frame 1 and at the other end 17 to a plate 18 fixed to a forked portion of the arm 3, which springs 15 raise the arms 3, 5. The chains 11 engage a cam surface 14 on a cam 13 fixed to the upper arm 5 so that the arm 5 moves through substantially the same angle relative to the base frame 1 as does the arm 3. The pantograph is retracted, Fig. 4, so that the arm 5 lies on the arm 3 and the latter lies on the frame 1 by means of an air ram 19 connected to the frame 1 at 20 and to one forked portion of the arm 3 at 21. A shock absorber 22 is connected between the another forked portion of the arm 3 and the frame 1. The collector head 8 comprises two carbon strips 25 mounted on supports 26 parallel to the cross-bar 7. The supports are carried by rubber mountings 27 on frames 28 which are each pivoted on a bracket mounted on the cross-bar 7. The supports 26 are connected at their ends by aluminium loops or horns 30.