baber/WOPTO huggingface dataset:
Patent GB-821202-A (GB)
Title: Hydrocarbon oils containing ashless dispersant inhibitors
IPC: F02B3/06
Filed: 1957-12-09
Abstract: An hydrocarbon fuel oil suitable for diesel, and jet engines and domestic or industrial heating consisting of hydrocarbons boiling between 350 DEG  and 900 DEG  F. is stabilized with a minor proportion, e.g. 0.001 to 2%, of the reaction product formed from a tertiary alkyl primary amine containing 8-20 C atoms per molecule, and a copolymer derived from (i) a vinyl ester of a fatty acid, (ii) an ester of a conjugated unsaturated dibasic acid and an alcohol containing 8-24 C atoms per molecule, and (iii) an alpha-beta unsaturated aldehyde or ketone represented by <FORM:0821202/III/1> wherein R is hydrogen, an aliphatic group with between 1-8 carbon atoms, phenyl or alkyl phenyl groups with 1-3 alkyl carbon atoms, and R1 and R11 are hydrogen or aliphatic groups with 1-3 carbon atoms. From 1-3 mol. of the tertiary alkyl primary amine, such as tertiary octyl primary amine, tertiary dodecyl primary amine or a mixture of alkyl primary amines of 15-18 carbon atoms, can be mixed with the copolymer, containing one mol. of the keto group, and dissolved in a solvent, such as toluene or xylene.  The mixture is refluxed at 212 DEG  to 350 DEG  F., preferably between 230-300 DEG  F., for 1 to 10 hours in a nitrogen atmosphere in the presence of a catalyst, such as zinc or aluminium chloride, whence the keto group reacts with the amine group to form an azomethine group represented by >C=N-R.  The copolymer may be prepared from a mixture of monomers in the proportion of 1 to 1.5 mols. of vinyl ester; for example, vinyl acetate or vinyl propionate; 0.5 to 0.7 mols. of the dibasic acid ester, for example, an ester formed from an alcohol containing 8-24 carbon atoms, such as, octyl, lauryl, tridecyl, arachidyl, behenyl or tallow (C16 to C18) with, preferably, fumaric and/or maleic acid, or itaconate or aconitate acid; and 0.3 to 0.5 mols. of the keto group, for example, acrolein, cinnamaldehyde, benzaldehyde, crotonaldehyde or methyl vinyl ketone. Polymerization of the monomers in a solution of benzene, xylene or toluene at 60-212 DEG  F. may be promoted by gamma radiation or a peroxide type catalyst, such as benzoyl peroxide, an hydroperoxide or an azo catalyst, such as alpha-alpha1-azo-bis-butyronitrile to give a polymer of 1000 to 100,000, preferably 2000 to 20,000 molecular weight.  In an example given a commercial fuel oil consisting of 50% virgin distillate and 50% cracked stock was stabilized against the formation of sediment by the addition of the reaction product. The reaction product on combustion with the fuel oil leaves no residue and is ashless.
Patent GB-367965-A (GB)
Title: Improved process of and apparatus for doubling and sizing artificial silk
IPC: D06M23/00
Filed: 1930-12-18
Abstract: 367,965. Doubling, sizing, and drying artificial silk. HEBERLEIN & CO. AKT.- GES., Wattwil, Switzerland. Dec. 18, 1930, No. 38239. Convention date, Oct. 28. [Classes 120 (ii) and 120 (iii).] Artificial silk yarns or filaments are doubled, sized, dried and rewound in one operation. The yarn is drawn from the rotating bobbin a and is passed through guides c, d to the sizing disc e which dips into the trough f. The quantity of size carried round by the disc is controlled by adjusting the scraper g. The sized yarn passes through the drying chamber i, which is steam o r electrically heated, one or more times, to the winding device k which winds the finished thread at constant speed. The sizing discs may be replaced by a roller, and the size may be incorporated more intimately into the thread by the provision of a counterpressure roller adjacent to the size roller.
Patent GB-1488319-A (GB)
Title: Generators of"howler"tone for use in telephone exchanges
IPC: H04M19/02
Filed: 1975-09-17
Abstract: 1488319 Automatic exchange systems POST OFFICE 17 Sept 1975 38260/75 Heading H4K A howler tone generator comprises a sweepfrequency audio oscillator and a filter for reducing high frequency components of the oscillator output. In order to prevent deafening of a subscriber, the tone is applied to line via a steppable attenuator, e.g. a uniselector and resistor chain. The generator output is devoid of the power wasting spikes common in conventional electromechanical howler tone generators. In detail, a multivibrator TR3, TR4 is swept at a rate of 40 Hz or 4 Hz (determined by value of capacitor C1) by a triangular wave generator IC1 and control transistors TR1, TR2 which act as variable current sources and change the charging time of capacitors C2, C3 thereby adjusting the frequency of the oscillator. The latter's sweep range is preferably 300-3400 Hz. The output from the oscillator is taken via a two-stage, active, low-pass filter TR5, TR6 (cutoff 4000 Hz) to the driver TR7 of a complementary-pair, push-pull power amplifier TB8, TR9. An additional capacitor C13 provides additional high frequency filtering before the signal is passed to line via a (not shown) stepping attenuator.
Patent GB-1409921-A (GB)
Title: Solid lubricant
IPC: C10N10/12
Filed: 1972-08-16
Abstract: 1409921 Solid lubricants OILES KOGYO KK 16 Aug 1972 [19 Aug 1971] 38301/72 Addition to 1256349 Heading C5F A solid lubricant comprises a mixture of particulate graphite or a graphite/tungsten disulphide mixture, with particulate sodium fluoride, the mixture being bound together by an alloy powder. A metal tungstate, e.g. Na 2 WO 4  may be included. Specified alloys are 77 Cu-23 Pb and 90 Cu-5 Sn-5 Pb. The particle sizes of NaF and graphite are preferably less than 200 and 150 Tyler mesh respectively, and the mean particle size of the tungsten disulphide is preferably 2 microns. The composition may be compressed or moulded and then sintered at 700-850 C. to form pellets for embedding into bearing surfaces.
Patent GB-821664-A (GB)
Title: Improvements in proportional control systems
IPC: B21B37/60
Filed: 1956-12-17
Abstract: 821,664. Automatic thickness control systems. AMERICAN BRASS CO. Dec. 17, 1956 [Feb. 20, 1956], No. 38416/56. Class 38 (4). An electric control system, particularly for control of the thickness of metal sheet leaving a rolling mill, comprises a source 1 of a voltage dependent on the measured thickness (or other quantity), a potentiometer 13 for providing a reference voltage, a chopper 2 converting the difference voltage to a pulsed error signal for amplification by a double triode 6 and application to the grids of two thyratrons 17, 18, the anodes of which are supplied with A.C. from a transformer 10 which also supplies the chopping current, and control windings 30 and 33 in the cathode circuits of the thyratrons which with resistances 29, 32 and capacitances 31, 35, together act as adjustable timing circuits for the control currents. Adjustable resistances 19 and 20 control the points at which the thyratrons fire to effect control. Instead of unidirectional measurement and reference voltages, alternating voltages may be used, when no chopper would be necessary. Control windings 30, 33 may be starter or field windings for the millroll adjusting motors or control relays.
Patent GB-1162231-A (GB)
Title: Method of Producing a Laminate to be used in a Corrugated Board
IPC: B31F1/28
Filed: 1966-08-26
Abstract: 1,162,231. Laminated paper. ENSOGUTZEIT OSAKEYHTIO. 26 Aug., 1966 [3 Sept., 1965 (2)], No. 38435/66. Heading B5N. A method of producing a laminate for use as a fluted layer or a liner layer in a corrugated board comprises forming a substantially uniform intermediate layer of a thermosetting resin containing a plasticizer between two webs of paper or paperboard, and bonding the webs and resin layer to each other without impregnating the webs with the resin so that the surfaces of the laminate thus formed are still capable of being glued with water-miscible paper and paperboard glues, and without completely hardening the resin to form a laminate which is mouldable after a period of storage. The webs may be of wet strength paper or paperboard in which the wet strength is provided by cationic urea formaldehyde and optionally alum. The laminate may be used as the fluted layer of a corrugated board between liners of the same laminate of or any of the following:-wet strength paper or paperboard, wax-coated paper or paperboard, foamed plastics or foamed plastics covered with wet strength paper. The thermosetting resin used in the laminate may be a urea resin containing polyvinyl acetate as a softener and ammonium chloride, water, and concentrated ammonia as hardener or a phenolic resin. The resin may be applied as a film, as a solution or dispersion, by extrusion or as a powder or in the case of phenolic resin as an impregnant in a thin paper sheet. The bonding of the surface layers of paper or paperboard by the resin is carried out under non-resin hardening conditions, e.g. between press rolls. The laminate when used as a fluted layer may be glued to liner layer(s) by water base glues, e.g. dextrines, or water-resistant glues, e.g. urea, phenolic, or resorcinolic resins. The thermosetting resin is finally hardened by subjecting the corrugated board to a heat treatment.
Patent GB-1497891-A (GB)
Title: Magnetic recording media
IPC: C09D7/12
Filed: 1975-09-23
Abstract: 1497891 Magnetic recording media SONY CORP 23 Sept 1975 [2 Oct 1974] 38971/75 Headings C3P and C3R [Also in Division B2] Magnetic recording media comprise a flexible non-magnetic film base, e.g. polyethylene terephthalate, and a magnetic layer formed thereon comprising magnetizable particles dispersed in a resinous binder, said magnetic layer either containing or being coated with a lubricating agent of formula in which n is 1, 2 or 3, and R is a C 7-17  aliphatic group. In Examples 1-4, the magnetic layer comprises γ-Fe 2 O 3 , vinyl chloride/vinyl acetate copolymer, a polyurethane resin, carbon black, lecithin, and one of several different silicon compounds of the above formula. Example 5 is similar except that the silicon compound is omitted from the layer and is instead coated on to the formed layer from isopropanol solution.
Patent GB-869417-A (GB)
Title: Improvements in and relating to pulleys
Inventor: WEINBERG SIDNEY
IPC: F16D3/76
Filed: 1956-12-21
Abstract: 869,417. Universal joints. COAL INDUSTRY (PATENTS) Ltd. Nov. 27, 1957 [Dec. 21, 1956], No. 38979/56. Class 80 (2). A pulley particularly for use with wire ropes comprises a rim portion 13 connected to its hub 12 by a bonded rubber ring 15. The hub 12 is also connected to a bush 11 by a bonded rubber sleeve 14 which is provided with reinforcing elements 16. The ring 15 may also be reinforced. The groove of the rim 13 may be provided with a liner secured thereto by a bonded resilient cushion.
Patent GB-1237750-A (GB)
Title: Polychloroprene elastomer
Inventor: KITAGAWA CHOJIRO
IPC: C08L11/00
Filed: 1968-08-15
Abstract: 1,237,750. Blends of chloroprene polymers. DENKI KAGAKU KOGYO K.K. 15 Aug., 1968, No. 39036/68. Heading C3P. A composition comprises a blend of a tolueneinsoluble gel polymer having a cross-link density of at least 2À4 x 10<SP>-6</SP> obtained by copolymerizing chloroprene or a mixture of chloroprene and a copolymerizable monomer in the presence of a bifunctional monomer which is of the formula where n is 1 to 8 or of the formula where n is 2 to 4, or is divinyl benzene, divinyl ether, diallyl phthalate or divinyl sulphone, with a toluene-soluble sol polymer of chloroprene or a mixture of chloroprene and another monomer. The gel polymer is prepared by conventional methods. The composition may contain the usual compounding ingredients. The comonomer may be styrene or dichlorobutadiene. Reference has been directed by the Comptroller to Specifications 1,148,690 and 1,158,970.
Patent GB-901018-A (GB)
Title: An improved photographic camera
IPC: G03B17/02
Filed: 1960-11-16
Abstract: 901,018. Cameras. DANGELMAIER, B. Nov. 16, 1960 [Nov. 21, 1959], No. 39308/60. Class 98 (1). A photographic camera adapted to be focused to predetermined fixed distances by axial displacement of at least one member of the objective comprises a plurality of push buttons, some of which are provided for effecting said axial displacement, characterized in that the push buttons also operate the shutter release, the transmission between the push buttons and the objective being provided with stop means for stopping the focusing movement and a slip clutch device for permitting further shutter release movement of the push buttons. The camera shown comprises an objective 21 mounted in a rotatable support 20 which is connected through gearing 20a, 22, 24 to a toothed disc (not shown) fixedly mounted on a shaft 26. Rotatably mounted on the shaft 26 are three discs (only 27 shown) which are connected to the shaft by lost-motion coupling, comprising pins angularly staggered round the shaft, each of which has a corresponding pin on one of the three discs. Disc 27 meshes with a rack 39 on a cylindrical stud 36 which is slidable in a groove in a push button 16. A rod 43 attached to the camera casing is also slidable in a hole in button 16. The two other discs are similarly connected to push buttons. The lens 21 is initially focused at infinity by means of a spring (not shown). On pressing one of the buttons, say 16, the focusing of the lens is adjusted until stud 36 abuts a stop 44 so that on continuing the movement of the button the stud remains stationary in the groove against action of a spring 42 and the button 16 eventually moves a rod 48 pivoted at 50 which is connected through a rod 46 to the shutter operating lever 45 which is thus moved to release the shutter. The other two buttons are connected to the lens through lost-motion couplings of different lengths and therefore adjust the focusing by different amounts. A fourth button is provided which is not coupled to the lens support 20, but which serves to operate the shutter through rod 48 when the lens is focused at infinity.
Patent GB-1272121-A (GB)
Title: Pharmaceutical preparations for local application which do not contain water or oil
Inventor: HOFFMANN KARL
IPC: A61K35/04
Filed: 1969-08-06
Abstract: 1,272,121. Topical compositions. K. HOFFMAN. 6 Aug., 1969 [28 Aug., 1968], No. 39325/69. Heading A5B. A pharmaceutical preparation for local application which does not contain water or oil comprises a pharmaceutically active ingredient and, as carrier, a water-soluble and lipoid-soluble pyridine carboxylic acid alkylamide. The active ingredients which may be employed are, for example, steroids, or esters thereof, a number of which are specified; salicylic acid; 5,7-dihalogen-8-hydroxy quinolines; pyrazolidine derivatives; thioglycollic acid, anthrarobin or coal tar.
Patent GB-1294672-A (GB)
Title: Nuclear reactor power plant
Inventor: HOSEGOOD SAMUEL BRITTAN
IPC: D06C3/06
Filed: 1969-08-06
Abstract: 1294672 Nuclear power plant UNITED KINGDOM ATOMIC ENERGY AUTHORITY 27 July 1970 [6 Aug 1969] 39484/69 Heading G6C In a nuclear reactor power plant the gas-cooled reactor is mounted within a prestressed concrete pressure vessel, the walls of which contain cavities in which are mounted heatexchangers and gas circulators; two power turbines are mounted in prestressed containers beneath the pressure vessel and connected to it by ducts. The reactor core 2, in the concrete vessel 1, is cooled by gas circulated by the compressors 27, 28 driven by the turbine 29, in the cavities 3a. Hot gas leaves the reactor at 35, passes through 29 and the duct 9 into the turbine 6 driving the alternator 8. Exhaust gas from 6 flows upwards, through duct 10, to the recuperative heat exchanger 20 and the precooler 21, in duct 3b. The compressors return the gas, along the outside of 20, to the reactor core, via the duct 38. The prestressed concrete vessels 4, 5, are coupled to vessel 1 by ducts 9, 10 which are surrounded by the pre-stressed collars 40.
Patent GB-1000906-A (GB)
Title: Process for copolymerising unsaturated polyesters with monomers containing vinyl groups
IPC: C08F283/01
Filed: 1962-10-18
Abstract: Unsaturated polyesters are copolymerized with unsaturated monomers using a catalyst mixture containing at least one ketone of the general formula <FORM:1000906/C3/1> in which R and R1 represent aromatic radicals unsubstituted, or substituted by alkyl groups with up to 10 carbon atoms, or by hydroxyl groups, alkoxyl groups with up to 10 carbon atoms, amino groups or halogen atoms, or in which R represents a benzyl group or an alkyl group with up to 10 carbon atoms, and in which R11 represents hydrogen, an aromatic radical, unsubstituted or substituted with alkyl, hydroxyl, alkoxyl or amino groups or halogen atoms, or a formyl, cyano, aceto, alkyl, benzyl, benzoyl, benzyloxy, amino or anilido group or in which the catalyst mixture contains at least one amide of the general formula R1-NH-CO-R in which R and R1 are as above, and/or at least one substance capable of forming such a ketone or amide. The catalysts of the invention can advantageously be used in combination with phenyl acetaldehyde, phenyl acetaldehydes substituted on the a -carbon atom and phenyl acetaldehydes substituted on the benzene ring and/or with peroxidic catalysts. In the examples, ketones and amides specified are desoxybenzoin; benzylmethyl ketone; dibenzyl ketone; benzylethyl ketone; p1-amino, p1-methyl, p1-chloro, p1-hydroxy, p1-nitro, p-methoxy, p-methyl, p-hydroxy and p-acetyl desoxybenzoins; desylamine; Formyl desoxybenzoins, a - and BETA-forms; desyl aniline; desyl cyanide; benzoyl desoxy-benzoin, enol and keto forms; phenyl desoxybenzoin; benzoin benzylether; methyl, ethyl, isobutyl, acetyl and benzyl desoxybenzoins; benzoin acetate; desyl anilide; desoxybenzoinanil; desoxybenzoin plus aniline; N,N-dimethylaniline; N,N - dimethyl - p - toluidine; n - hexylamine; diethyl amine or triethylamine; phenyl acetone; ms-phenyldesoxybenzoin; a ,a -diphenylacetone; benzanilide; acetanilide; dibenzyl ketone; carbanilide; phenyl acetic acid anilide; desoxybenzoin with (a) phenyl acetone and hydratopaaldehyde plus, if desired, benzoyl peroxide; (b) hydratopaaldehyde; (c) phenylacetone, hydratopaaldehyde and benzoyl peroxide.
Patent GB-868443-A (GB)
Title: Improvements in beams or buntons used in constructing cage guide supporting structures
IPC: E21D7/02
Filed: 1959-11-20
Abstract: 868,443. Mine cage apparatus. WRIGHT ANDERSON (SOUTH AFRICA) Ltd. Nov. 20, 1959 [May 15, 1959], No. 39545/59.. Class 78 (3). Tubular steel buntons which support guide-rails for a mine cage in a ventilation shaft have an elongated hexagonal crosssection to facilitate free flow of air in the shaft. Each bunton is fabricated from a pair of steel plates 3 which are welded together along the top and bottom edges 6, and are interconnected by distance-pieces 10 welded to the plates coaxially with bolt-holes which enable the bunton to be attached to a flange 7 welded to the end of an adjacent bunton.
Patent GB-1407825-A (GB)
Title: Blood centrifuges
IPC: B04B5/02
Filed: 1972-08-24
Abstract: 1407825 Clips; damps HERAEUSCHRIST GmbH 24 Aug 1972 [26 Aug 1971] 39563/72 Heading E2B [Also in Division B2] A clip for holding a blood bag in a pivotable cup of a centrifuge (see Division B1-B2) consists of a U-shaped strip 1 of resilient sheet metal, Fig 1, whose side arms engage the opposite walls of the bag and have end portions 2 which are turned inwardly and are provided with outwardly bent lips 3 for gripping and supporting a sealed end portion of the bag. In a modification, Figs 7 and 8, serrated clamping jaws 18, 20 are secured by screws 17, 19 to the inwardly turned portions of the strip 1. Bolts 22 are fastened by the screws 17 to the jaw 18. The jaw 20 has perforations 24 through each of which the head 23 of a bolt 22 can pass when the side arms of the strip are spread apart. The bolt head has an inclined lower surface which cooperates with an inclined surface 27 on a slider 25 to open or close the two jaws.
Patent GB-889278-A (GB)
Title: Improvements relating to the production of composite resilient sheet materials
Inventor: TAYLOR STANLEY DOUGLAS
IPC: D06M15/693
Filed: 1957-12-21
Abstract: 889,278. Resilient sheet materials. DUNLOP RUBBER CO. Ltd. Oct. 20, 1958 [Dec. 21, 1957], No. 39771/57. Class 140. Resilient sheet material is produced by applying adhesive coated resilient particles over one surface of a sheet of hessian or other flexible sheet material in a layer of substantially uniform thickness, applying on the accessible surface of this layer a foamed gellable vulcanizable compounded aqueous rubber dispersion and/or another liquid resilient cellular material precursor, and consolidating the assembly so formed, the precursor being forced during consolidation into the layer of adhesive coated particles, and being caused and/or allowed subsequently to the consolidation to undergo conversion into foam rubber or other resilient cellular material. The hessian or other sheet material 1 and the layer of the adhesive coated particles 2, which may have a thickness of # to ¢ inch, may be coated with the precursor 5 by means of a nozzle oscillated from side to side in front of the nip between rollers 3, 4, which consolidate the assembly and which may force the precursor into the layer of adhesive coated particles to a distance of 20 to 90% of its thickness. The particles may be of ground natural or synthetic foam rubber, polyester-isocyanate and/or polyether-isocyanate foams. The adhesive may be based upon a foamed or unfoamed vulcanizable compounded rubber latex, foamed or unfoamed polyvinyl acetate dispersions, and polyurethane foam-forming mixtures based on a polyester or a polyether and an isocyanate. The precursor, other than rubber dispersions, may be foamed vinyl chloride plastisols and polyurethane foamforming mixtures. The rubber dispersions may be based on natural rubber, on a butadienestyrene copolymer or other synthetic rubber, or a mixture thereof. The consolidating step may be followed by heating to vulcanize the adhesive. The precursor may be heated to effect conversion into the cellular material, conversion and vulcanization being effected in a single heating operation.
Patent GB-343254-A (GB)
Title: Improvements in engine starting apparatus
IPC: F02N99/00
Filed: 1929-12-30
Abstract: 343,254. Stuffing-box substitutes. ECLIPSE AVIATION CORPORATION, 545, North Arlington Avenue, East Orange, New Jersey, U.S.A. Dec. 30, 1929, No. 39799. Convention date, Jan. 15. [Class 122 (v).] The housing of an engine starter of the high speed flywheel type is sealed from oil in the crankcase by a flexible washer 91 carried by a cup-shaped member 89 and having its inner part pressed against an axially and rotatably moved engine engaging clutch member 48 by a washer 90 and a sleeve 92. The shaft 81 is sealed by washers 93 one of which may be flexible.