baber/WOPTO huggingface dataset:
Patent GB-1525188-A (GB)
Title: Process for the preparation of alpha-substituted ketones
IPC: C07C45/51
Filed: 1976-10-20
Abstract: 1525188 α-Substituted ketones RHONEPOULENC INDUSTRIES 20 Oct 1976 [21 Oct 1975] 43560/76 Heading C2C A process for the preparation of a ketone containing a secondary or tertiary aliphatic carbon atom in at least one α-position relative to the carbonyl group, of formula: in which Ro represents a saturated or unsaturated, aliphatic or cycloaliphatic hydrocarbon radical of 1 to 30 carbon atoms, R 1  represents a hydrocarbon radical of 1 to 30 carbon atoms, and R 2  and R 3  independently represent hydrogen, or a hydrocarbon radical of 1 to 30 carbon atoms, or R 1 , together with R 2  or R 3 , forms a divalent hydrocarbon radical of 3 to 13 carbon atoms, or R 2  and R 3  together form a divalent hydrocarbon radical of 4 to 14 carbon atoms, and each of Ro, R 1 , R 2  and R 3  is optionally substituted by an inert functional group (as hereinbefore defined), which process comprises reacting an aliphatic halide of formula:- in which Ro is as defined above and X represents a chlorine, bromine or iodine atom, with an enoxysilane of formula: in which R 1 , R 2  and R<SP>3</SP> are as defined above, n represents an integer from 1 to 3, R represents a hydrocarbon radical of 1 to 20 carbon atoms, or, if n is I or 2, at most one R represents a radical of formula:- in which R 1 , R 2 , R 3  and n are as defined above, R 4  represents a hydrocarbon radical of 1 to 20 carbon atoms, and A represents a valency bond, an oxygen atom or a divalent hydrocarbon radical of 1 to 10 carbon atoms, in the presence of a catalyst comprising a metal or a derivative of a metal of group 1b, 2b, 3b, 4a, 4b, 5a, 5b, 6b, 7b or 8 (including the lanthanides and the actinides) of the Periodic classification of the elements.
Patent GB-937755-A (GB)
Title: Improvements in or relating to heat sealed articles and method of making the same
IPC: B26F3/06
Filed: 1959-12-22
Abstract: 937,755. Seaming non-metallic sheet material. SCHOLL MFG. CO. Ltd. Dec. 22, 1959 [Jan. 7, 1959], No. 43590/59. Class 42 (1). In a method of sealing a layer of thermoplastic film to a layer of thermoplastic foam, a die preheated to a temperature below the melting points of the materials is forced against the superposed materials and then energized with a H.F. current. The film 17 preferably of unsupported vinyl, e.g. polyvinyl chloride and foam 16 preferably of polyester polyurethane or polyvinyl chloride, are placed on a lower electrode 8. The die 1, 2 which is shaped to define an article, e.g. a bath mat, seat cushion, insole or other foot cushioning device, forms a tearing line so that the waste material may be stripped from the article after sealing. A heating element 5 is used to preheat the die 1, 2. A sheet 9 of phenolic material or other dielectric insulating material and a sheet 10 of a tetrafluoroethylene or a fluoro-carbon resin to which the polyurethane foam will not adhere, may be placed on the lower electrode 8.
Patent GB-1275474-A (GB)
Title: A device for controlling the maximum permissable speed of a machine
IPC: D04B15/94
Filed: 1969-09-04
Abstract: 1275474 Automatic speed control ELITEXZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 4 Sept 1969 [17 Sept 1968] 43745/69 Heading G3R [Also in Division D1] In a circular knitting machine, the speed of a pulley 3 is regulated by a system comprising a tachogenerator 4, regulator 5 and electromagnetic induction clutch 2, and a safety device is provided to interrupt the power supply to the driving motor 1 when the alegebraic sum of the tachogenerator output voltage and a reference voltage becomes positive.
Patent GB-1026454-A (GB)
Title: Improvements in or relating to crop-working implements
IPC: A01D78/02
Filed: 1962-11-20
Abstract: 1,026,454. Haymaking machines. C. VAN DER LELY N.V. Nov. 20, 1962 [Dec. 1, 1961], No. 43944/62. Heading A1F. A drum-tedder is provided with guidemembers for the discharged crop which are adjustable about two mutically-perpendicular axes, one of which lies parallel to the drum-axis, whereby the crop may be discharged into a windrow narrower than the working width of the implement. A machine similar to that described in Specification 1.026,453 is employed but further modifications are described enabling the drum-axis to be canted to the line of travel so as to produce one or more windrows offset from the swath worked. Two machines canted in opposite directions may be employed side-by-side to amalgamate windrows.
Patent GB-970543-A (GB)
Title: Process for stabilizing chloroprene
IPC: C07C17/42
Filed: 1960-12-21
Abstract: Chloroprene is stabilized during preparation and purification, especially during distillation, by adding phenothiazine and blowing in air or oxygen.
Patent GB-1166043-A (GB)
Title: Heat-Exchanger Arrangement
Inventor: COMTE JEAN
IPC: F28C3/14
Filed: 1966-10-03
Abstract: 1,166,043. Hot-blast stoves. J. COMPTE. 3 Oct., 1966 [4 Oct., 1965], No. 44014/66. Heading F4K. A Cowper type hot-blast stove comprises an upright metal envelope 8 having a red brick lining 7 and an insulating layer 6, and contains a gas permeable mass of heat transfer packing material 3 of cylindrical, U- or random shaped elements (Figs. 2, 3, 4). Stacked annular elements, which may be perforated, together with intervening loose material 9 define an arched free space 4 into which space opens an annular burner 18 supplied with gas and combustion air from tubes 16 and 17 respectively. Air to be heated is fed via tube 14 into another free space 5 similar in construction to space 4 and is heated on passing upwardly through the heat transfer material 3, the heated air leaving the stove through a tube 15 disposed within and concentric to the burner 18. In another form (Fig. 8, not shown) the envelope flares outwardly from a narrow base and has a generally hemispherical upper portion. A simplified embodiment (Fig. 6) has an upwardly tapering envelope which is open at the top, the free space plus burner and hot air outlet tube (described above for Fig. 5) being disposed in the base of the envelope. The hot-blast stoves may be connected in pairs (Fig. 7) to provide a continuous supply of heated air to a blast furnace.
Patent GB-875549-A (GB)
Title: Process for the preparation of 19-nor-steroid compounds
IPC: C07J75/00
Filed: 1959-12-31
Abstract: D 4-19-Nor-steroids unsubstituted in the 3-position are prepared by reacting a D 4-3-keto-19-nor-steroid with a hydrocarbon thiol or a hydrocarbon dithiol to form the corresponding 3-thioketal and then reacting this with an alkali metal in the presence of liquid ammonia. The thioketalization may be effected, for example, in the presence of zinc chloride or hydrochloric acid and a dehydrating agent, such as sodium sulphate, or in the presence of p - toluene - sulphonic acid and a water-immiscible organic solvent, or in the presence of glacial acetic acid and a Lewis acid such as boron trifluoride or the etherate thereof.  Preferably, a hydrocarbon dithiol such as ethane, propane or butane dithiol is used, to give a cyclic thioketal, but monothiols such as ethyl, propyl, benzyl or phenyl thiol may also be used, to give a non-cyclic thioketal.  During the reaction with liquid ammonia, reducible keto groups e.g. in the 20-position, are converted to hydroxyl groups, which may then be reconverted to keto groups by oxidation with, for example, chromium trioxide and sulphuric acid, 21-hydroxyl groups, if present, being protected prior to the oxidation, by esterification and then liberated again by saponification after the oxidation. Examples illustrate the preparation of various D 4-19-nor-androstenes and pregnenes containing in the 17-position a - and b -hydroxy, keto, and a -alkyl and alkenyl groups, in the 20-position keto groups, in the 21-position hydrogen or hydroxyl groups and in the 11-position hydrogen, b -hydroxy or keto groups.  Specifications 811,961 and 847,713 are referred to.
Patent GB-1279114-A (GB)
Title: Fluid treating cartridge construction
IPC: B01D46/12
Filed: 1969-09-10
Abstract: 1279114 Gas treating cartridges AMERICAN AIR FILTER CO Inc 10 Sept 1969 [10 Sept 1968] 44781/69 Headings B1L and BIT A cartridge for removing undesirable components from effluent gas in a nuclear installation comprises a generally U-shaped frame 1 (Fig. 1, not shown) whose open end is bridged by an apertured inlet plate 13 and whose sides are bridged by respective layers of adsorbent material confined between inner perforate plates 4 and outer perforate plates 9, reinforcing bars 17 extending through the plates and carrying washers and spring clips engaging grooves therein to maintain spacing of the plates. The frame and plates may be spotwelded or riveted together. Plates 9 could engage the upturned flanges (6) of plates 4. A stack of such cartridges may be mounted in individual holes in a frame (26) (Fig. 5, not shown), and gas flow could be in either direction. Sealing strips 22 may be provided.
Patent GB-1128533-A (GB)
Title: Screw press
IPC: B30B1/18
Filed: 1966-10-07
Abstract: 1,128,533. Screw presses. HILLER & LUTZ. 7 Oct., 1966 [27 Aug., 1966], No. 44820/66. Heading B5F. In a screw press comprising a ram 3, screw 10 and flywheel 7, the screw is driven from one of two drive pulleys 5 on a shaft 11 through alternately engageable friction clutches 15, 16 and bevel gears 12, 13. Fig. 3 shows one half only of the drive mechanism for the press. The pulley 5 is moved to the left to engage the clutch by fluid pressure on one annular piston 14 against the action of springs 17 bearing on a presser ring 18. Brake shoes 8 pivoted at 21 are moved against the flywheel 7 by springs 22 when fluid pressure on a piston 23 is relieved. Electro-hydraulic control means ensures that the brake is off before one of the clutches is operated.
Patent GB-1411821-A (GB)
Title: Shoe manufacture
IPC: A43D11/00
Filed: 1972-09-29
Abstract: 1411821 Boots &c BRITISH UNITED SHOE MACHINERY CO Ltd 19 Jan 1973 [20 Jan 1972 29 Sept 1972 22 Nov 1972] 2706/72 44972/72 and 54030/72 Heading A3B Apparatus for carrying out the method described in Specification 1313189 of temporarily securing an insole I to the bottom of a last L by impaling the insole on sharpedged locating members 2, 4 fixed to the last bottom comprises two percussion tools 82, 84 arranged to apply percussive force in toe and heel regions, respectively, of the insole I. The tools 82, 84 resemble the nail-inserting tools of Specification 875802 but with hammer heads 88, 86 instead of nail-handling parts. The last L is supported as shown so as to be movable, upon acutation of piston rod 48, from the full-line position of Fig. 1 to the broken-line position in which the toe end of the insole contacts hammer head 88 of percussion tool 82. This actuates the tool which applies percussive force to the insole to impale it on the locating member 2. Further extension of piston rod 48 now causes the last to pivot about the toe, end so that the heel end rises and contacts the other hammer head 86 which attaches the insole to the other locating member 4.  A stiffly flexible metal blade (200), Fig. 7 (not shown) or a pair of transverse coil springs (250) Fig. 9 (not shown) may be attached to the toe-end tool 82 to hold down the insole I against the last L prior to attachment to prevent misalignment of the insole and last. Similarly, a tubular hold-down member may surround hammer head 86 to hold down the heel end of insole I.
Patent GB-989930-A (GB)
Title: Device for transferring liquid metal
IPC: F27D3/14
Filed: 1963-11-14
Abstract: 989,930. Transferring liquid metals. BROWN, BOVERI & CO. Inc. Nov. 14, 1963 [Nov. 14, 1962], No. 44978/63. Heading F4B. A device for transferring liquid metal from a first furnace to a second, particularly an induction furnace, which is tiltable and at a lower level comprises a heat-resistant horizontal pipe arranged above and parallel to the tilting axis of the second furnace and projecting into the same with a funnel-shaped vertical extension at the pipe inlet guided such that the said extension remains beneath the supply opening of the first furnace in all operating positions of the second furnace. A horizontal pipe 4 having a vertical funnel-shaped extension 5 projects in an aperture 3 in a tilting second furnace body 1 above the shaft 2 thereof. A lever 6 pivotally connects the shaft to the pipe at 11 and a funnelattached triangular plate 12 is guided at its free end by a bolt 7 sliding in a fixed slotted link 8 such that the funnel remains beneath the supply opening 10 of a first furnace in the smelting (Fig. 2), pouring, Figs. 3 and 4 (not shown), and slag-removing, Fig. 5 (not shown), positions of the second furnace.
Patent GB-1082661-A (GB)
Title: Improved plant and processes for the treatment of effluent and sewage
Inventor: ROBJOHNS CYRIL FRANCIS
IPC: H03L7/22
Filed: 1963-11-15
Abstract: The flow of water in the treatment plant of Specification 1,030,476 is intermittant so that any cavity is flooded for a period and this is followed by a pause in the flow of liquid. This may be achieved by varying the flow of liquid or by adjustment of the cavity size.
Patent GB-1396447-A (GB)
Title: Dryers
IPC: D21F5/00
Filed: 1973-09-28
Abstract: 1396447 Drying webs DOMTAR Ltd 28 Sept 1973 [2 Oct 1972] 45458/73 Heading F4G An air bearing drier for drying a web 12 comprises means for dividing the drier into a plurality of side by side sections 16 each being adjusted to dry a portion of the width of the web, a chamber in each section, nozzle means, e.g. slots 14, communicating with each of the sections for directing air from its respective chamber towards the web 12, duct means on the side of the sections 16 opposite the nozzle means, the duct means extending across all the chambers, means for correcting each of the chambers with the duet means and means to adjust air flow from the duct means to each of the chambers. As shown the duct means comprises two side by side ducts one carrying warm air and the other hot air, the connecting means including openings 28, 30 controlled by slide valves 24, 26 respectively. The positions of the slide valves in each section are controlled through a slidable bar 40 and cable 60 arrangement by solenoid operated pawls 46, 48 which are pivotably mounted on the bar co-operating with a reciprocating plate 70. The plate 70 and solenoids 42, 44 are under the control of a moisture sensor 34 upstream of the drier, the sensor 34 traversing the web 12 and according to whether the web is too dry or wet in a portion of the web a microswitch 36 is actuated in one way or another respectively to operate the plate 70 and one of the solenoids 42 or 44. In a further embodiment (Figs. 4 to 7, not shown) each section comprises two chambers, one chamber of each section providing heated air for ejection on to the web and the other chamber of each section providing for the exhaustion of heated air from the surface of the web. Two exhaust ducts are provided beneath the chambers, communication between the other chambers and the exhaust ducts being through valved openings (Fig. 5, not shown). Each chamber is divided by longitudinally extending partitions for providing passages for the expulsion and intake of heated gases.
Patent GB-1400935-A (GB)
Title: Longitudinally watertight cable
IPC: H01B13/22
Filed: 1973-09-28
Abstract: 1400935 Cables PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 28 Sept 1973 [3 Oct 1972] 45521/73 Heading H1A In a water-resistant cable comprising twisted insulated core conductors 1, 2, 3, 4, between which is provided a powdered material 5 such as methoxycellulose which swells on exposure to any water which may enter and hence prevent further water penetration, strips of material 7, 8, are provided between the core and an outer sheath 9, the inner layer 7 being of a resin material which does not soften at the processing temperature of the material of the sheath, and the outer stayer 8 being of one that does. As disclosed the inner layer 7 is polyethylene terephthalate (softening point 240‹ C.) and the outer layer and sheath are both polyethylene (softening point 100‹ C.) so that these bond together in a water-tight manner. The insulation of the indivudual core conductors is also polyethylene.
Patent GB-1474708-A (GB)
Title: Withdrawing air from the interior of a spinning chamber of an  open-end spinning unit
IPC: D01H4/10
Filed: 1974-10-18
Abstract: 1474708 Withdrawing air from open end rotors VYZKUMNY USTAV BAVLNARSKY 18 Oct 1974 [24 Oct 1973 (2)] 45531/74 Heading DID An open-end spinning unit comprises a rotary spinning chamber whose outer wall 2 flares from the annular edge of its open face 15 the outer wall being surrounded by a volute air collecting space 17 whose radial width increases in the direction of chamber rotation towards an air outlet, and the chamber lid 5 being spaced from the edge of the chamber and containing a fibre supply duct 7. Suitable ratios of areas of the fiber inlet duct, yarn exit duct and passage between the chamber and its lid are given. The cone apex angle of the rotor exterior is preferably 55‹-75‹.
Patent GB-1152339-A (GB)
Title: Motor Vehicle Seat Arrangements
Inventor: THORPE REGINALD PETER
IPC: B60N2/20
Filed: 1966-10-12
Abstract: 1,152,339. Seats. FORD MOTOR CO. Ltd. 12 Oct., 1966, No. 45632/66. Heading A4J. The backrest 1 of a vehicle seat, which folds forwardly to. form an extension of a load-carrying surface, is locked in the upright position by two pivoted latches 3, 4 operated by a single pivoted lever 2, through tie-rods 5, 6. Slots (14a) are arranged to exert a cam action on the cooperating ends of the latches 3, 4, so as to urge the backrest against rubber or plastic stops 17 and prevent rattling.
Patent GB-1394981-A (GB)
Title: Incinerator and method of burning scum
IPC: A61K31/245
Filed: 1973-10-01
Abstract: 1394981 Incinerators NICHOLS ENG & RESEARCH CORP 1 Oct 1973 [6 Oct 1972] 45695/73 Heading F4B An incinerator for sewage scum has a lower tank portion 12. an ignition chamber 14 above the tank and in communication with it, and an upper combustion chamber 16 communicating with the ignition chamber 14, the tank 12 having an inlet 18 for a continuous flow of sewage consisting of floatable solids in water and an outlet controlling the liquid level in the tank, ignition burners 50 and air nozzles 52, 62 in the chamber 14 and nozzles 78 for combustion air in chamber 16, the products of combustion being discharged through a gas scrubber with a lower outlet for solid materials and an upper outlet for exhaust gases. As the sewage flows through the tank oleaginous solids rise to the surface and, after twelve or more hours, sufficient has accumulated to be burned. The floated scum is agitated by fingers 42 rotating with shaft 44. The roof of chamber 14 is a shallow dome having a passage 72 in the middle. A baffle 74 over the upper end of passage 72 causes the combustion gases from chamber 14 to enter chamber 16 radially and mix with combustion air from tangentiallydirected jets 78. Fully burnt gases leave chamber 16 via passage 86 and are drawn downwardly through a duct with a butterfly control valve and a cooler to a blower which forces the gases through a water scrubber to a chimney.
Patent GB-1061566-A (GB)
Title: Phenoxymethyl penicillins
Inventor: SENSI PIERO
IPC: C07D499/00
Filed: 1962-12-04
Abstract: The invention relates to phenoxymethyl-penicillin derivatives of formula <FORM:1061566/C2/1> wherein X is hydrogen or C1- 8 alkyl and R is C1- 8 alkyl, aralkyl, hydroxyalkyl, carboxyalkyl, carbalkoxyalkyl, carboxyaralkyl or carbalkoxyaralkyl. Typical penicillins are phenoxymethyl-penicillin methoxyamide, phenoxymethyl-penicillin beta - phenethoxyamide, phenoxymethylpenicillin beta - phenylpropoxyamide, phenoxymethylpenicillin carbo - ter - butoxy-methoxyamide, phenoxymethylpenicillin N-methyl - beta - phenylisopropoxyamide and phenoxymethylpenicillin N - methyl - beta phenylpropoxyamide. The penicillins are prepared by reacting phenoxymethylpenicillin with an equimolecular amount of ethyl chloro-formate in the presence of triethylamine in anhydrous organic solvent to form the mixed anhydride of phenoxymethyl penicillin and ethoxyformic acid which is then reacted with an O-substituted hydroxylamine of formula HNXOR wherein X and R have the above values.  The penicillins have antibacterial activity, especially against penicillin-resistant staphylococci.  Therapeutic compositions comprise a penicillin of Formula I together with a pharmaceutical carrier.  For injection, water-soluble derivatives containing carboxy and carbalkoxy groups are preferred.
Patent GB-1060309-A (GB)
Title: A source of ions or electrons
IPC: H01J27/10
Filed: 1963-11-20
Abstract: 1,060,309. Ion or electron sources. SIEMENS-SCHUCKERTWERKE A.G. Nov. 20, 1963 [Nov. 20, 1962], No. 45884/63. Heading HID. An ion or electron source is based upon the principle of the duoplasmatron and comprises at least two sources arranged in cascade so that the electrons emitted by one source serve as a virtual cathode for the succeeding source, the discharge currents of the sources increasing from stage to stage with utilization of volume ionization. As shown, each stage of a twostage source is generally similar to the duoplasmatron source described in the German Specification 1,059,581. A low-pressure discharge between cathode 10 and anode '13 is fed from a 200 to 300 V source 19 through a stabilizing resistance 20. No ballast resistance is provided in the external circuit of the second and any succeeding stages, wherein the pulling voltage is adjusted to maintain a discharge with positive current-voltage characteristic without cathode drop. The intermediate electrode 16 is initially connected to anode 13 through resistance 22 to set up an intense ionization between electrodes 16 and 13, the plasma being constricted by a magnetic field, and is then made more negative through resistance 23 so that electrons are accelerated and emitted through the anode aperture to the second stage. With the exception of the last stage tne emission aperture may be larger than the plasma cross-section. The wall of the intermediate electrode aperture may be provided with a metal layer 31, thermally insulated by layer 32, and which emits electrons upon heating by ion bombardment. The source may be used in high-vacuum, electron beam, melting furnaces or for ion propulsion in space travel.
Patent GB-1359687-A (GB)
Title: Thermal barrier tape
IPC: H01B7/29
Filed: 1971-10-01
Abstract: 1359687 Laminates CHASE CORP 1 Oct 1971 [1 Oct 1970] 45908/71 Heading B5N [Also in Division H1] A laminated heat-insulating tape 10 having a heat distortion temperature of at least 200‹ F. consists of a 1-5 mil. thermoplastic polymer layer and a 3-20 mil. layer comprising a glass paper which has a thermal conductivity of less than 0À4 BTU-inch per hr-ft<SP>2</SP>-F<SP>0</SP>. The glass paper contains less than 10% organic binder and is at least half as thick as the tape. The thermoplastic polymer may be polyethyleneterephthalate or polypropylene and may be attached to the glass paper by direct bonding or the use of an adhesive of nitrile rubber, an acrylic or modacrylic polymer or polyvinyl acetate. The tape 10 may be used to protect insulated wires 20 in an electrical cable from the effects of heat as an outer thermoplastic sheath (e.g. polyethylene) is extruded over them. A metal sheet (e.g. aluminium) 26 may be placed between the tape and sheath.