baber/WOPTO huggingface dataset:
Patent GB-1234614-A (GB)
IPC: C08F4/50
Filed: 1968-06-27
Abstract: 1,234,614. Organometallic compounds; stilbene dicarboxylic acid. GENERAL ELECTRIC CO. 27 June, 1968 [21 Aug., 1967], No. 30742/68. Headings C2C and C2J. Solvated metal-hydrocarbon complexes of polynuclear aromatic hydrocarbons or conjugated olefinic hydrocarbons with Be, Mg, Ca, Sr or Ba may be prepared by reacting, under anhydrous conditions and under an atmosphere free from oxygen, moisture and oxides of carbon, at a temperature of 5-120‹ C., the metal with the hydrocarbon, in the solvating solvent which is hexamethyl phosphoramide, octamethylpyrophosphoramide, tetrahydrofuran, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, N,N,N<SP>1</SP>,N<SP>1</SP>-tetramethyl ethylene diamine, or a mixture of two or more of these. The solvated complex may be isolated from solution by precipitation, drying and recrystallization. In Example 7, a deep purple-coloured solution of strontium-trans-stilbene-hexamethylphosphoramide treated with solid dry CO 2 , and subsequently acidified, gave stilbene-1,2-dicarboxylic acid (m.pt. 224‹ C.).
Patent GB-1238658-A (GB)
IPC: H04N7/26
Filed: 1968-06-12
Abstract: 1,238,658. Electric selective signalling. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 12 June, 1968, No. 22420/70. Divided out of 1,238,657. Heading G4H. In a signalling system, a signal X1, Fig. 5, is fed via a delay DT1, corresponding to a signal sampling interval, to a pulse coder PM a1  and direct to a pulse coder PM b1 . The coded signals are combined in sequence at SE1 and the combined code is converted to analogue form at PD1 and supplied via a filter F1 to an amplitude or frequency-modulator AM1 for transmission. At the receiver the demodulated signals from AD1 are sampled and pulse-coded at PM1, separated into the two signals at SP1, converted into analogue form at PD a1 , PD b1  respectively and combined directly and via delay DT1 at F1. In an alternative arrangement the input signal is sampled and quantized at predetermined intervals to provide a succession of pulses and a predetermined number of such pulses are combined to produce a further pulse whose amplitude is determined by each component pulse and the quantized amplitude thereof, the signal being transmitted as a succession of said further pulses. The system provides bandwidth compression of the input signal.
Patent GB-1238774-A (GB)
IPC: C08L23/12
Filed: 1969-03-24
Abstract: 1,238,774. Dyeing polypropylene. PHILLIPS PETROLEUM CO. 24 March, 1969 [25 March,, 1968], No. 15221/69. Heading D1B. [Also in Division C3] A polymer of improved dyeability comprises crystalline polypropylene and 1-20 parts by weight per 100 parts by weight of polypropylene of a polyether ester which is the selfcondensation product of p(p-hydroxyethoxy) benzoic acid or p(γ-hydroxypropoxy) benzoic acid. The polymer fibres are dye-tested with disperse dyes.
Patent GB-1239091-A (GB)
IPC: C01B17/60
Filed: 1969-06-25
Abstract: 1,239,091. Separating sulphur dioxide from gaseous mixtures. CHEMICAL CONSTRUCTION CORP. 25 June, 1969 [1 Nov., 1968], No. 32198/69. Heading C1A. Sulphur dioxide is separated from waste gas mixtures containing it by scrubbing the mixture with an aqueous slurry containing magnesium oxide and magnesium sulphite, the magnesium oxide being present in an amount in excess of the theoretical requirement to absorb and react with essentially all the sulphur dioxide, and dividing the resulting reacted slurry of magnesium sulphite (MgO+SO 2  # MgSO 3 ) into two portions; separating the first portion into a clear liquid phase and residual wet solids; adding the clear liquid phase and a make-up magnesium oxide slurry to the second portion to form a combined aqueous slurry; recycling said combined slurry to the scrubbing step; drying said residual wet solids, e.g. with hot gas to form a substantially anhydrous solids stream of an MgO and MgSO 3  mixture; calcining said anhydrous solids mixture at an elevated temperature, e.g. 400‹ to 900‹ C., to regenerate MgO and liberate SO 2 , and adding water to the regenerated MgO to form said make-up magnesium oxide slurry. An example describes apparatus for processing waste gas containing 0À1 to 0À7% by volume of SO 2 , to produce a resultant waste gas containing only 0.01 to 0.05% by volume of SO 2 .
Patent GB-1239261-A (GB)
IPC: F16B5/06
Filed: 1968-08-28
Abstract: 1,239,261. Releasable fastenings. TEXTRON INDUSTRIES Inc. 28 Aug., 1968 [31 Aug., 1967], No. 41067/68. Heading E2B. [Also in Division F2] An apparatus for securing two members 3, 4 together, comprises an apertured plate 2 to be positioned adjacent one of the two members 4 with the aperture 5 in the plate aligned with an aperture in such one member; a bolt 6 to extend both through the aperture in such one member and also through the aperture in the plate with a free end region of the bolt extending proud of the plate; a bolt-engaging member 1 having an aperture to receive said end region of the bolt extending into the aperture to be held by the bolt-engaging member; and a flexible strip 7 of material having three apertures therein, a first and a second aperture being positioned one at each end region of the strip and the third aperture being located between the first and second apertures, the arrangement being such that the strip can be positioned around the plate with the boltengaging member positioned through each of the first and second apertures so that the strip retains the bolt-engaging member on the plate with the third aperture 9 in the strip aligned with the aperture in the bolt-engaging member the diameter of such third aperture being such that the portion of the strip around said third aperture will frictionally engage the bolt when the apparatus is assembled. As described the member 1 is a lock bolt collar and the plate 2 is a spur plate; the two members 3 and 4 are a side member and floor board of a railway wagon, the spur plate and collar when assembled together by means of the flexible strip are stated to facilitate assembly of the members 3 and 4 since one man can engage the spur plate and collar assembly with the bolt shank by pressing the assembly onto the bolt shank so that the hole 9 engages the shank, another man meanwhile holding the bolt in place. The first man can then operate a device to force the collar against the spur plate and secure it in place.
Patent GB-1251199-A (GB)
IPC: E01D19/04
Filed: 1968-12-03
Abstract: 1,251,199. Bearings. P.S.C. EQUIPMENT Ltd. 3 Dec., 1968, No. 57242/68. Heading F2A. A bridge bearing comprises upper 3, intermediate 6, and lower 1 blocks, one pair of cooperating surfaces of which are part-spherical, and bearing surfaces between the upper and lower blocks to limit horizontal movement of the upper block in at least one direction. The surfaces 7, 9, 18 may be of P.T.F.E., whilst the surfaces 8, 14 may be of stainless steel. The pads 16 may be of resilient material (e.g. rubber) to allow tilting movement of the upper block. The lower and intermediate blocks may be of corrosion-resistant aluminium alloy, and the upper block may be of cast steel. In alternative embodiments, there is an annular bearing surface (25) (Fig. 3, not shown) between the upper and lower blocks, or an annular buffer (32) (Fig. 5, not shown) of resilient material.
Patent GB-1252130-A (GB)
IPC: B01D63/02
Filed: 1968-11-12
Abstract: 1,252,130. Permselective membrane assembly. DOW CHEMICAL CO. 12 Nov., 1968, No. 53657/68. Addition to 1,221,994. Heading B1X. A process for the manufacture of a permselective membrane assembly comprises spirally winding one or more continuously hollow fibres (1) so as to produce a cylinder of wound fibre or fibres supported on an inner supporting core (2) depositing a curable resin on and around the core and wound fibre or fibres in a zone adjacent one or both ends of the cylinder of wound fibre or fibres and curing the resin, the ends of the fibre or fibres being embedded in the cured resin but being open at the surface of the resin to permit the passage of fluid through the fibres. The fibre(s) may be wound directly onto the core or wound spirally inside a cylinder which is then rotated to obtain the desired size of fibre cylinder by the effect of centrifugal force and the core may be inserted after winding. The resin may be deposited as the fibre(s) are wound. The fibres may be of glass or organic polymeric material.
Patent GB-1257136-A (GB)
IPC: H03K19/088
Filed: 1970-03-02
Abstract: 1,257,136. Transistor logic circuits. SPRAGUE ELECTRIC CO. 2 March, 1970 [11 March, 1969], No. 9882/70. Heading H3T. [Also inDivision H1] An additional NPN noise immunity transistor 26 connected between an input coupling transistor 11 and output inverter transistors 34, 36 in an integrated transistor-transistor logic gate comprises base and emitter regions diffused into an N-type epitaxial layer constituting the collector region, an N + -type buried region being provided between the N-type collector region and an underlying high resistivity P-type substrate. In the Si embodiment described the coupling and inverter transistors 11, 34, 36, an amplifier transistor 24 coupled between the collector 13 of the coupling transistor 11 and the base 31 of the noise immunity transistor 26, and a further transistor 40 which provides a low impedance source for driving the output at high  speeds, are formed in the same general manner as the noise immunity transistor 26, the transistors 11, 36 and 40 being double emitter transistors of which 36 and 40 each have their respective emitter regions connected together. P+-type isolation walls 54 extending through the N-type epitaxial layer to the P-type substrate isolate the various devices.
Patent GB-1257977-A (GB)
IPC: G10K11/00
Filed: 1969-08-05
Abstract: 1,257,977. Agitating by ultrasonic waves. BLACKSTONE CORP. 5 Aug., 1969 [2 Jan., 1969], No. 39094/69. Heading B1C. [Also in Divisions H2 and H4] In an assembly of an ultrasonic transducer coupled to a container 10 for a fluid, the container 10 has an apertured wall 11 (Fig. 1) and the transducer includes a mass 13 positioned inside the container 10, another mass 15 positioned outside the container 10 and connected to the mass 13 by a threaded stud 14 or other connector which urges the masses 13, 15 together, and an exciting transducer element 18 bearing against one of the masses (15). The transducer is arranged to be excited at a frequency such that a model displacement plane of the transducer lies in the region of the wall 11. The element 18 may be magnetostrictive or piezoelectric. In another embodiment (Fig. 3) a crucible 50 of molten metal 51 has a quarter wavelength metallic section 54, a half wavelength refractory metallic transformer 55 and a mass 59 connected to transformer 55 by a prestressing stud (not shown). Mass 59 and two piezoelectric elements 57, 58 are a quarter wavelength long. The acoustical impedance of mass 54 is between that of the melt 51 and the transformer 55. Alternatively, two washer type piezoelectric elements (36, 37) Fig. 2 (not shown) engage the outside of the container (30). Masses (33) and (35) respectively inside and outside the container (30) are urged together by a stud (39) which prestresses the elements (36, 37) and passes through an aperture (32) in the container wall (31).
Patent GB-1264732-A (GB)
IPC: B60P1/40
Filed: 1970-05-27
Abstract: 1,264,732. Unloading vehicles; screw conveyers. PIETRO LAVERDA S.p.A. 27 May, 1970 [27 May, 1969], No. 25400/69. Addition to 1,251,136. Headings B8A and B8E. [Also in Division A1] To avoid impeding the flow of grain by the bevel gears in the discharge path from the grain container of the parent Specification, bevel gears 19 are located outside a cylindrical pocket 16. Additionally, an upper bevel gear assembly 11 is located eccentrically of the centre-line of the path of flow of the grain. Drive from a sprocket 25 to a conveyer screw 1 and to a screw portion 4 is by means of sprockets 14, 23 and by chain 24. An upper screw casing 6 is slewable, relative to the pocket 16, by means of an hydraulic actuator 9.
Patent GB-1295898-A (GB)
IPC: B41J19/44
Filed: 1970-09-28
Abstract: 1295898 Typewriters BROTHER KOGYO KK 28 Sept 1970 [26 Sept 1969 27 Sept 1969] 24 Oct 1969] 46036/70 Heading B6F Letter-spacing escapement mechanism; repeat spacing.-Normal letter-spacing is governed by a toothed wheel 18 co-operating with two pawls 38, 39. Repeat spacing is governed by a second toothed wheel 17 which is moved axially into line with the pawls 38, 39. Both wheels 17 and 18 are mounted on an axially movable shaft 14 which carries a pinion 16 engaging a carriage rack 52. The carriage is connected by a string 51 to a spring drum 50 for urging it in the letterspace direction. Depression of repeat spacing key 33 causes shaft 14 to be moved axially downwards. The teeth of the second toothed wheel 17, thereby brought into line with the pawls 38, 39, have cam surfaces which cause the pawls to be cyclically engaged and disengaged during the time that key 33 is depressed. In (Fig. 2) the toothed wheels are separated by a spacer. In (Fig. 3), toothed wheel 17 abuts wheel 18 and is made of plastics material for silent operation.
Patent GB-1296498-A (GB)
IPC: H01L31/00
Filed: 1970-03-20
Abstract: 1296498 Semi-conductor devices SIEMENS AG 20 March 1970 [21 March 1969] 13710/70 Heading H1K A radiation detector comprises a bridge circuit containing impedances 1, 2, 3, 4 and electrical connections 5, 6, 7, 8 formed monolithically in a crystalline body, the electrical resistivity of the impedances being radiation sensitive and at least one of the impedances exposable to radiation. In an embodiment impedances 1, 2 are exposable to radiation and the remaining impedances are enclosed by a cover-plate (30), Fig. 3 (not shown). All the impedances are supported on a thermally conductive but electrically insulating layer 19 of silicon oxide with impedances 1 and 2 extending across a recess 10 in a support plate 9. Conductors 24, 25, 26, 27 may be soldered to contacts 11, 12, 13, 14 of the crystalline body. The crystalline body may be of InSb with acicular inclusions of NiSb or MnSb, the inclusions being at right angles to the irradiated surface of the body and at right angles to the direction of current flow.
Patent GB-1303074-A (GB)
IPC: C08F210/00
Filed: 1970-04-13
Abstract: 1303074 Olefin copolymers ESSO RESEARCH & ENG CO 13 April 1970 17447/70 Heading C3P [Also in Division C5] Copolymers consisting of (a) 1À1-30 mols of ethylene per mol of straight chain C 12 -C 22  alpha-olefin having a number average molecular weight of 1000-50,000 and (b) 60-95 mole per cent ethylene, 1-less than 40 mole per cent of straight chain C 12 -C 22  alpha-olefin and up to 30 mole per cent of C 3 -C 6  alphaolefin having a number average molecular weight of 1,500-10,000, are employed as fuel additives. The examples describe the preparation of (1) a thermal copolymer of ethylene and dodecene-1 having a mol. wt. of 1027, (3) a peroxide initiated copolymer of ethylene and dodecene-1 having a mol. wt. of 2000 and (4) a terpolymer of ethylene, n-alpha-hexadecene and propylene.
Patent GB-1303491-A (GB)
IPC: C07D499/00
Filed: 1970-03-24
Abstract: 1303491 Penicillin esters LOVENS KEMISKE FABRIK PRODUKTIONSAKTIESELSKAB 19 April 1971 .[24 March 1970] 14303/70 Heading C2A Novel penicillin esters of Formula I and salts thereof, wherein R<SP>1</SP>CO is the 6-acylating side chain of a known penicillin having a basic group on its said side chain and R<SP>2</SP>CO is the 6-acylating group of a known penicillin not having a basic group in its said side chain are prepared by either (a) reacting a base salt of an R<SP>1</SP>CO - amino - penicillanic acid (wherein the basic group on the R<SP>1</SP>radical may be replaced by a group Z which is easily convertible to the said basic group) with a compound of formula YCH 2 Cl where Y is bromine, iodine, an alkylsulphonyl group or an aryl sulphonyl group, to give the corresponding penicillin chloromethyl ester which is reacted with a base salt of an R<SP>2</SP>CO-aminopenicillanic acid, and if necessary converting the group Z to the required basic group; or (b) proceeding as in (a) except that the acylamino-penicillanic acids are interchanged; or (c) replacing one or both acylaminopenicillanic acids by 6-amino-penicillanic acid to give a compound wherein one or both of the RCO groups in Formula I are replaced by hydrogen, and N-acylating this compound to provide the required R<SP>1</SP>CO- and/or R<SP>2</SP>CO.groups. The basic group may be an amino, substituted amino or guanyl-ureido group. The group Z which may replace it may be protected-amino or an NO 2 , Cl or azido group. Procedure (c) above may be conducted by simply reacting 6- aminopenicillanic acid with a compound of formula YCH 2 Y<SP>1</SP>where Y is as before and Y<SP>1</SP> is Cl, Br, I, or alkyl- or aryl-sulphonyloxy, when a compound wherein both RCO groups in Formula I are replaced by H, i.e. bis(6-aminopenicillanoyloxy).methone is obtained, this compound being a novel intermediate. Other novel intermediates are 6#-(D-α- azido - α - phenylacetamido) - penicillanoyloxymethyl esters of phenoxymethylpenicillin, benzylpenicillin, 5 - methyl - 3 - phenyl - 4- isoxazolylpenicillin, and 3 - (o - chloropehnyl)- 5-methyl-4-isoxazolylpenicillin. Pharmaceutical compositions having antibiotic activity comprise a penicillin ester of Formula I or a non-toxic salt thereof together with a pharmaceutically acceptable carrier.
Patent GB-1304915-A (GB)
IPC: B24B13/005
Filed: 1970-04-29
Abstract: 1304915 Casting composite articles; grinding and polishing lenses J & S WYLDE Ltd 28 April 1971 [29 April 1970] 20604/70 Headings B3D and B3F Apparatus for casting a holding block on to a multifocal lens preparatory to grinding, polishing and finishing the lens, comprises an annular lens-seating member 18, and means for receiving a lens button or support 38, the annular member 18 being rotatable about its axis over a graduated segment scale 44 and the means for receiving the lens support being rotatable over a second scale 46. In operation a lens button 38 is located in the mould so that pins 36 on a shaft 22 are received within holes 40. A lens blank is then seated on the ring 18 which is rotated for the amount of segment inset required as measured by the scale 44. The shaft 22 is then rotated over the scale 46 by an amount which corresponds to the axis of astigmatism prescribed, the shaft 22 being provided with a pointer 52. The lens button 38 and lens blank are now in their correct relative positions and a low melting alloy is introduced into the space between the button 38 and lens blank so as to anchor the latter to former. The lens blank and holding block are removed from the mould by pushing a rod 56 against the action of a spring 58 so that the nose 60 of the rod presses against the underside of the lens button 38 and ejects it.
Patent GB-1306952-A (GB)
Title: Commutators for electric machines
IPC: H01R39/06
Filed: 1970-07-02
Abstract: 1306952 Commutators for dynamo-electric machines PIKO SONNEBERG VEB 2 July 1970 32173/70 Heading H2A A radial-face commutator comprises an annular body 1 having a raised peripheral edge 4 and carrying conductive segments 3 whose soldering lugs 10 are located in apertures 5 in the raised edge 4, the gaps between the segments overlying recesses 6 in the body. The recesses 6 communicate with further apertures 12 in the raised edge 4, thereby preventing accumulation of carbon dust. The segments 3 are held in place by a sleeve (Fig. 4, not shown) inserted into the central aperture 7 of the body.
Patent GB-1322331-A (GB)
Title: Solar array simulator
IPC: B64G7/00
Filed: 1969-05-22
Abstract: 1322331 Photo-electric measuring BRITISH AIRCRAFT CORP Ltd 17 Aug 1970 [22 May 1969] 26132/69 Heading G1A In a method for estimating the output of an array of solar cells on a craft for different attitudes relative to a light source; the craft or a model is provided with areas corresponding to areas of the array which are either sources of light or are capable of reflecting light directed on to them, the light emitted or reflected being measured as a basis for the estimation. The source of light directed on the model in the case of reflecting surfaces and the detectors face in the same direction. Tests may be made in which light of different colours is detected. The model may be mounted to facilitate changes in its attitude, and the light sources may be beneath a diffusing layer or area corresponding to the array being investigated.
Patent GB-1323296-A (GB)
Title: Process for the manufacture of synthetic fibres by film fibrillation
IPC: D01D5/42
Filed: 1970-01-08
Abstract: 1323296 Manufacture of synthetic fibres by film fibrilation SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 6 Jan  1971 [8 Jan 1970] 970/70 Heading B5B A process for the manufacture of synthetic fibres from films of thermoplastic polymeric material, in which (a) three or more films of the same composition and structure, (b) two or more films of different composition and/or structure, or (c) one or more multicomponent films consisting of two or more layers of different and not permanently compatible materials are subjected, whilst the films or film layers are in stretched state and in juxtaposition above each other, to a mechanical fibrillation treatment to fibrillate the films or film layers simultaneously using the same mechanical means. Preferably the stetched films originate from the same stretching unit and each of the films of the same composition and structure to be processed simultaneously is integrally joined by one or more longitudinal folds to the next film or films. In a particularly preferred embodiment the films to be processed simultaneously originate from laying flat a blown film produced by an extrusion process, during the blowing step whereof at least one gusset is employed. The mechanical treatment to which the stretched films or film layers are simultaneously subjected may be any known fibrillation method employing mechanical means, e.g. rubbing, cutting, brushing or exposure to a gas jet or a rapid stream of solid particles or preferably by drawing stretched films or film layers over a cylinder provided with pins which is rotating more rapidly than the film in the same direction. Particularly preferred are pins arranged in rows parallel to the cylinder axis. The so obtained product is suitable in further working up, e.g. in preparing soft twines by stretch-breaking. Suitable thermoplastic polymeric materials include homo- and copolymers of vinylchloride, vinylidene chloride, vinyl acetate, acrylontrile as well as polyesters and polyamides. Preferred materials comprise homo- and copolymers of pivololactone and of lower olefins, preferably polypropylene and low pressure polyethylene. Preferably the thickness of each film or film layer in unstretched form is less than 50 microns, especially 20-35 microns.
Patent GB-1324585-A (GB)
Title: Two-element receiving antenna
IPC: H01Q19/30
Filed: 1972-03-08
Abstract: 1324585 Aerials DX ANTENNA CO Ltd 8 March 1972 10779/72 Heading H4A A two-element aerial comprises linear active and passive elements arranged in parallel with each other on a connecting rod 3, and having transverse elongated members attached to their ends. The minimum distance between adjacent members on the two elements is from one to five per cent of the wavelength corresponding to the fundamental resonance frequency of the active element. As described, an active element of folded dipole type comprises two parallel rods 5, the extremities of which are joined together by elongated transverse loops 9. Clamps 4 connect the element to the boom 3, and clamps 8 connect the loops to the rods. A reflector element of similar construction comprises parallel rods 7 and elongated transverse loops 11. The boom 3 is fixed to a mast 1 by a clamp 2. The aerial is designed to provide uniform operation over a wide frequency band with reduced dimensions.