baber/WOPTO huggingface dataset:
Patent GB-853396-A (GB)
Title: Improvements in electromagnetic fluid control valves
IPC: F16K31/08
Filed: 1958-12-18
Abstract: 853,396. Valves. HERMAN, J. F. Dec. 18, 1958 [Dec. 26, 1957], No. 40925/58. Class 135. An electromagnetically operated valve comprises a rotary plug 3 having a spindle 5 carrying a soft iron plate 6 around the periphery of which are arranged permanent magnets 71, 72, 73, 74, the poles of which are reversed alternately and a valve body to which is fixed a soft iron plate 8 carrying on its periphery electromagnets 91, 92, 93, 94, the flux of which can be reversed by a three-position switch 10. The axes of the electromagnets 9 and the permanent magnets 7 are slightly staggered in the fully open and fully closed positions of the valve. In the unenergized state of the valve the permanent magnets are attracted downwards by the soft iron cores of the electromagnets, so that the plug is held firmly in its seating in either the open or closed positions of the valve. To close the valve from the open position shown, current is directed through the coils in such a direction that each electromagnet produces a repelling force to the adjacent permanent magnet. The force initially moves the plug axially and slightly away from its seat and then, due to staggering of the axes of the magnets, causes the plate 6 to rotate through 90 degrees until the magnets are re-aligned in a mutually attracted sense. The plate 6 and plug then move axially downwards due to this attraction of the unlike poles and the valve is seated in the closed position. To re-open the valve, current is passed through the coils in the opposite direction. Staggering of the axes of the magnets when the valve is in a rest position may be assured by providing suitable stops on the plate 6. Short-circuited turns round the cores of the electromagnets will help to start the rotative movement of the valve.
Patent GB-932106-A (GB)
Title: Method of and apparatus for the stretching and smoothing of combed slivers
IPC: D01H5/00
Filed: 1960-11-29
Abstract: 932,106. Spinning yarns; preparing fibres for spinning. FLEISSNER G.m.b.H. Nov. 29, 1960 [Dec. 1, 1959], No. 40996/60. Classes 120 (1) and 120 (3). Combed slivers 3 are smoothed and stretched by being guided over a number of perforated drums 5, 6, 7, 8, with each successive drum being rotated at a greater speed than the previous drum so as to apply a tensile stress to the slivers 3, and subjected to an atmosphere of steam and air. A fan coaxial with each drum sucks the steam-air mixture out of the interior thereof to cause the slivers 3 to be held in contact with the drum periphery. The steam-air mixture is supplied again by way of heating elements to the drum periphery so that circulation is continuous. The drums are each provided with a switch 13 which can regulate the drum speed and are driven by a motor 9 connected to variable transmissions 12 on a shaft 10. Each drum has a cover 19 to cover the part of the periphery thereof not contacted by the slivers 3. The drums are made of copper or are copper lined. Loss of heat by radiation is reduced by enclosing the apparatus in an insulated chamber 14.
Patent GB-1271419-A (GB)
Title: Air distillation process
Inventor: BLIGH BERNARD RAMSEY
IPC: F25J3/04
Filed: 1969-08-16
Abstract: 1,271,419. Air rectification process. B. R. BLIGH. 14 Aug., 1970 [16 Aug., 1969], No. 41030/69. Heading F4P. In a two-stage air rectification process the major portion of the air feed is delivered by a compressor 1 through conventional reversing heat exchangers 3, 5 to the bottom of the highpressure column 7 from the base of which crude liquid oxygen is withdrawn at 28 and expanded at 29 into a mid-point of a two-part lowpressure column 9, 10 whilst the remaining minor portion 13 of the feed air at a lower pressure than the main portion partly condensed in an intermediate reboiler 11 for heating the bottoms liquid in low-pressure column 9 and is then expanded at 14 into column 9 at a point above that of entry of the crude liquid oxygen; product oxygen in the liquid and gaseous phase being withdrawn from the base of the low pressure column 9, 10 at 38, 21, respectively, and the major part of the product gaseous nitrogen being withdrawn at 26 and the minor portion being withdrawn at 8 from the main retractor 8. The pressure reduction of the minor portion of air feed is effected by work expansion in a turbine 37.
Patent GB-889397-A (GB)
Title: Improvements in and relating to floor polishing machines
Inventor: BRIDGE SAMUEL DOUGLAS
IPC: A47L11/206
Filed: 1959-12-04
Abstract: 889,397. Floor polishing machines. DIXON & CO. Ltd., R. G. Dec. 2, 1960 [Dec. 4, 1959], No. 41304/59. Class 138 (1). A floor polishing and cleaning machine embodies brushes 1, driven by a motor 3, and a suction unit for removing dust duling the polishing operation, having an impeller 15 disconnectably driven by the motor 3. In one embodiment the suction unit comprises a centrifugal fan 15 in a housing 4 pivotally mounted on the machine casing 2, and the disconnectable drive comprises a bevel wheel 14 mounted on the motor shaft 13 and a tyre 17 on the impeller shaft 15 in driving engagement with the bevel wheel 14. The housing 4 is rocked about its pivot mounting to disconnect the tyre 17 from the bevel wheel 14, against the action of a spring 18. Dust is drawn in by the impeller 15 through the space between the rim 8 of the casing 2 and the brush 1, and is also drawn through a nozzle 20, connected to an inlet 6 of the impeller housing 4, and surrounding at least part of the periphery of the casing 2. A further embodiment provides a clutch member on the shaft of the motor driving the brush, and having teeth for disconnectably engaging the teeth of an impeller rotatably mounted on the same shaft. Another embodiment provides impellers mounted in bearings arranged around the brush and a rubber tyre on the hub of the brush which may be engaged disconnectably, e.g. rubber tyres mounted on the impeller spindles.
Patent GB-1057495-A (GB)
Title: New fluorine containing resins and coating compositions formed therefrom
IPC: C09D123/08
Filed: 1963-10-18
Abstract: Terpolymers of tetrafluoroethylene, ethylene and isobutylene in which the proportion of tetrafluoroethylene is 20 to 80 mol. per cent, the proportion in mol. per cent of tetrafluoroethylene is at least equal to the proportion of isobutylene, and the proportions of ethylene and isobutylene are at least 1 mol. per cent, may be prepared by aqueous emulsion polymerization of the monomers in the presence of ammonium persulphate, sodium borate, ammonium or potassium perfluoroctanoate, tertiary butanol and dodecyl mercaptan. The latices obtained or dispersions prepared by recovery of the polymer and redispersion in a volatile organic liquid, e.g. an alcohol, ester, ketone, hydrocarbon or halogenated hydrocarbon, may be used for coating metals.  The coating compositions may also contain pigments, e.g. carbon black and inorganic oxides; stabilizers, and antioxidants, e.g. dicyclohexylamine.  Specified solvents are methanol, ethanol, propanol, butanol, cyclohexanol, ethyl acetate, butyl acetate, amyl acetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, benzene, toluene, xylene, carbon tetrachloride, trichlorethane, trichlorethylene and perchlorethylene.ALSO:Metals may be coated with dispersions of copolymers of tetrafluoroethylene, ethylene and isobutylene in which the molar proportion of tetrafluoroethylene is 20 to 80 per cent and is at least equal to the molar proportion of isobutylene, and the molar proportions of ethylene and isobutylene are each at least 1 per cent, the dispersing medium evaporated and the coatings heated above the melting point of the copolymer to form a coherent film thereof.  The substrate may be iron, stainless steel or aluminium. The medium may be aqueous or organic, and the compositions may also comprise pigments and stabilizers.  Many suitable media are specified including hydrocarbons, halogenated hydrocarbons, alcohols, esters and ketons. The compositions may be applied by dipping or spraying.  In examples coating compositions comprising the copolymer, carbon tetrachloride, cyclohexanol and dicyclohexylamine are sprayed on to (1) aluminium plates and (4) aluminium rods; are coated by dipping on a sand-blasted iron plate; and are coated on (3) solvent-cleaned steel plates.  The products of Example 3 are compared with those obtained by applying a tetrafluoroethylene/hexafluoropropylene copolymer dispersion to primed steel plates.
Patent GB-1067677-A (GB)
Title: Improvements in and relating to magnetic transducers
Inventor: PUNNETT SYDNEY WALLACE
IPC: G01R19/20
Filed: 1962-11-01
Abstract: 1,067,677. D.C. current measurement. UNIVERSITY OF SOUTHAMPTON AND BRITISH PETROLEUM CO. Ltd. Oct. 9, 1963 [Nov. 1, 1962], No. 41358/62. Heading G1U. [Also in Division H3] A magnetic transducer used in apparatus for measuring D.C. current consists of two annular magnetic cores 11, 12 in close proximity, each carrying substantially identical input windings 13, 14 connected in series and wound so that alternating current supplied to them causes the cores to be magnetically saturated in opposed directions. The resultant flux in the transducer is substantially zero and no voltage is induced in an output winding 16 which is wound round both cores and their windings. A D. C. current carried by a conductor 22 passing through the transducer causes a proportionate output voltage to be induced in the output winding. A ring shaped shield of metal 26 extends round the cores and their windings to reduce the effects of extraneous fields. The transducer is fabricated in two parts so that it may be placed round a conductor such as a pipe. The cores may be made from a web form magnetic material wound on a wooden former.
Patent GB-1367285-A (GB)
Title: Inertia dampers
IPC: F16F7/104
Filed: 1971-08-26
Abstract: 1367285 Inertia weight vibration dampers; piston rings GIRLING Ltd 26 Aug 1971 [28 Aug 1970] 41568/70 Headings F2S and F2T A damper for attachment to the axle of a vehicle road wheel (not shown) comprises a closed casing 11 containing air or other compressible fluid, an inertia mass 10 fitting slidably within the easing and having a passage 14 to allow fluid flow from one end of the casing to the other, and two springs 12, 13 of different strengths opposing movement of the inertia mass towards the ends of the casing. The spring 12 is stiffer than the spring 13 and occasionally loses contact with the mass 10. Both springs are under pre-load when the inertia mass is at rest. The mass 10 has piston rings 16 of a resilient plastics material with spring fingers 19 which centre the mass.
Patent GB-1031880-A (GB)
Title: Method of preparing 3-indolylacetic acid
Inventor: SHAGALOV LEV BENIAMINOVICH
IPC: C07D209/18
Filed: 1964-10-12
Abstract: 3-Indolylacetic acid is prepared from indole and chloracetic acid at 250-290 DEG  C. and 50-90 atm. in presence of alkali, e.g. aqueous KOH.  The reaction product may be filtered and acidified with hydrochloric to precipitate the indolylacetic acid.
Patent GB-1480513-A (GB)
Title: Spectacle frames
IPC: G02C5/22
Filed: 1974-09-25
Abstract: 1480513 Spectacle frames LA MECCANOPTICA LEONARDO SpA 25 Sept 1974 [4 Oct 1973] 41661/74 Heading G2J Each side arm is attached to the front frame of a spectacle frame by means of a hinge connection which comprises a metal plate 10 secured to the front frame 36 and having a cam surface 12, together with a metal member 20 secured to the side arm 44 and housing a ball 14 which is urged by a spring 16 into contact with the cam surface 12, the plate 10 and member 20 being held together by a pivot pin 28. A longitudinal slot in the hinge end of the member 20 accommodates the plate 10. Each side arm 44 is welded into a recess in the associated member 20, while the front frame 36 is similarly attached to the plate 10. In a second embodiment the member 20 has an end slot to accommodate a metal core of a side arm and the plate 10 is shaped to be anchored in a plastics front frame.
Patent GB-946626-A (GB)
Title: Improvements in toolholders for lathes and other machine tools
IPC: B23B27/16
Filed: 1961-11-22
Abstract: 946,626. Tool-holders. WESSON CORPORATION. Nov. 22, 1961 [Nov. 29, 1960], No. 41700/61. Heading B3B. The tool-holder body 20, Fig. 1, is provided with a stepped end 22, 24, on which is mounted an anvil plate 30 secured by pressed-fit pins 32, 34; Fig. 2. The plate 30 has a recess 36 in one comer to take a square carbide insert 100, Fig. 1. The latter is clamped by means of a member 50 and a differentially-threaded bolt 92. A lip 60 on the clamp member engages a chip-breaker 80 which bears on the top of the tool-insert. The chip-breaker is serrated along one edge, Fig. 9, to bear against serrations on an inturned lip 56 of the clamp. The chip-breaker is retained in the clamp by a ledge and a spring 74. The bit may have other polygonal shapes.
Patent GB-1057218-A (GB)
Title: Improvements in or relating to telephone exchanges
Inventor: BRYAN DAVID GERALD
IPC: H04Q3/545
Filed: 1965-10-01
Abstract: 1,057,218. Automatic exchange systems. STANDARD TELEPHONE & CABLES Ltd., and AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Oct. 1, 1965, No. 41737/65. Heading H4K. In an exchange employing stages A, B, C of matrix switches, e.g. of the reed relay type, in which the setting up of connections is supervised by control units 8, the incoming lines, both subscribers' lines and junctions, are scanned for calling conditions, and when such a condition is found an associated cyclic store 3 sends the identity of the line and of its class of service to an idle control unit 8. The latter with the aid of a route choice circuit 7 and marker 6 extends the calling line to a register 5, which in accordance with the dialled information it receives tells the control unit 8 of the requirements, and the connection is established with the aid of a route choice circuit 7 and a marker 6. The switching equipment may be sectionalized in the manner described in Specifications 989,336 and 999,945. The cyclic store 3 may scan subscribers' lines, incoming junctions and register terminations &c. at different rates, and may comprise an array of ring cores which deliver information in a 2-outof-5 code.
Patent GB-1119356-A (GB)
Title: Esters soluble or emulsifiable in water of polymers containing hydroxyl groups and a process for their manufacture
IPC: C08F8/00
Filed: 1965-10-01
Abstract: Esters, soluble or emulsifiable in water, of polyvinyl alcohol or copolymers of vinyl alcohol are prepared by reacting the polymer or copolymer in an inert solvent with a mixed unsymmetrical anhydride of a carboxylic or sulphonic acid and a monoalkyl ester of carbonic acid.  The copolymers may have the general formula <FORM:1119356/C3/1> in which R1 is a hydrogen atom or an acyl radical with 1 to 18 carbon atoms, X is an alkyl or aryl radical, Y1 and Y2 are the same or different acyl radicals and X and Y1 or Y2 may be linked to each other via one or more carbon atoms and preferably represent the pyrrolidone or caprolactam radical, and m, n, o and p are integers.  The mixed anhydrides may be derived from saturated or mono- or polyunsaturated aliphatic carboxylic acids preferably having 1 to 18 carbon atoms; saturated or mono- or polyunsaturated cycloaliphatic carboxylic acids; aromatic and heterocyclic carboxylic acids; aliphatic or aromatic sulphonic acids and semi-esters of dicarboxylic acids. The mixed anhydrides are obtained by reacting alkali metal salts, or pseudo alkali metal salts, e.g. sodium, potassium or trialkyl ammonium salts of the above acids with a halide of a carbonic acid semi-alkyl ester at a temperature from - 20 DEG to + 30 DEG  C.  In the examples: (1) polyvinyl alcohol is treated with the mixed anhydride derived by mixing together triethylamine, 2,4-dichlorobenzoic acid and chloroformic acid ethyl ester; (2) a vinyl alcohol-N-vinyl pyrrolidone copolymer is treated with the reaction product of 2,4-dichlorobenzoic acid, triethylamine and chloroformic acid ethyl ester.  Instead of 2,4-dichlorobenzoic acid there may be used testosterone succinic acid semiester, prednisolone succinic acid semiester, 6-methylprednisolone succinic acid semiester, oleic acid, palmitic acid, b -naphthoic acid, hexahydrobenzoic acid and propionic acid; (3) a vinyl alcohol-N-vinyl pyrrolidone copolymer is treated with the reaction product of chloroformic acid ethyl ester and sodium 1-phenyl, 2,3 - dimethyl - 4 - methyl - aminopyrrazolone - (5) - N - methane - sulphonate or sodium benzene-sulphonate or sodium g-penicillin; (4) a vinyl alcohol-N-vinyl-N-methylacetamide is treated with the reaction product of 2,4-dichlorobenzoic acid, triethylamine and chloroformic acid ethyl ester.
Patent GB-908070-A (GB)
Title: Improvements in or relating to garbage disposal devices for motor vehicles
IPC: B65F3/22
Filed: 1959-12-09
Abstract: 908,070. Feeding material to the containers of refuse vehicles. TALENTI, A. Dec. 9, 1959 (Feb. 21, 1959], No. 41843/59. Class 78 (4). A rotary drum feeder for a refuse vehicle is provided with annular segments 7, each of which is attached at one end to a helical blade 2, and at the other end carries a radial vane 11. Laminated torsion-bars (Figs. 4 and 5, not shown) are used to resiliently attach the vanes to the segments.
Patent GB-1239836-A (GB)
Title: Improvements in or relating to the making and dispensing of carbonated confections in semi-frozen form
IPC: B67D1/00
Filed: 1968-09-04
Abstract: 1,239,836. Aerating liquids. CORNELIUS CO. 4 Sept., 1968 [9 Nov., 1967], No. 42138/ 68. Heading B1C. [Also in Division F4] In a method and apparatus for making and dispensing a carbonated semi-frozen confection, a pressurized carbonator 12 is supplied with water by a pump 14, carbon dioxide from a pressurized tank 22, and a freezing- point depressing syrup from a tank 25; the syrup is ejected by gas pressure and pressure regulators 24, 26 ensure that at the carbonator the syrup supply pressure is greater than that of the gas supply. The carbonated liquid passes through a thermostatically-controlled precooler 35 to a freezer 37 having a constantly rotating scraper-stirrer 45, where part of the liquid freezes into pure ice crystals increasing the degree of carbonation and sweeteners of the remaining liquid, there being regulated by controlling the refrigerating system 42 in dependence on a consistency sensor 44. The confection is dispensed through a valve 48 having less resistance to flow than the path between the carbonator and freezer; the pressure in the carbonator being hydrostatically transmitted to the freezer when the valve 48 is closed. The freezer has a manual bleed valve 38 to ensure that no pocket of gas accumulates therein. The carbonator is suspended from a loadswitch 19 which actuates pump motor 15 and valves 17, 32 to supply materials; switches 21, 27, 31 shut down the refrigerating systems in the absence of any one ingredient. A safety control 41 detects the presence of ice to prevent freezing of the pre-cooler and a centrifugal switch 47 shuts down the refrigerator system 42 if rotation of the scraper-stirrer 45 should cease. The carbonator has a snifter valve 56 which passes gas in either direction but prevents back-flow of liquid so that increase of pressure in the carbonator due to ice formation in the refrigeration system will cause gas to be vented at 55; and a valve 28 enables gas instead of syrup to be delivered to the carbonator to empty it. The carbonator may be replaced by a pre-mix tank filled with all the ingredients of the confection or, for instance, a soft drinks bottling plant.
Patent GB-993467-A (GB)
Title: Method of and apparatus for producing a fuel-lubricating oil mixture for an internal combustion engine
IPC: F02B75/02
Filed: 1962-11-09
Abstract: 993,467. Lubricating. AUTO UNION G.m.b.H. Nov. 9, 1962 [Nov. 10, 1961], No. 42433/62. Heading F2A. [Also in Division B1] In a method of supplying a mixture of lubricating oil and fuel to an internal combustion engine, a pump 5, having an adjustable stroke, feeds oil through a duct 8, having a bend 9 and a substantially vertical portion 10, into a fuel-feed duct 11 which supplies a jet 12 of a carburetter 13. The pump 5 is driven by a " V "- belt pulley 6 and is adjusted by a lever 7 which is connected by a link 14 to a valve lever 15, the latter being actuated by an accelerator pedal (not shown). The portion 10 prevents excess oil from entering the duct 11 when the engine is not running. In an alternative construction, the portion 10 can be replaced by a valve.
Patent GB-1032955-A (GB)
Title: Improvements in powder image fixing apparatus
IPC: B65H3/06
Filed: 1962-12-28
Abstract: 1,032,955. Electrophotographic apparatus. RANK XEROX Ltd. Dec. 28, 1962 [Dec. 28, 1961], No. 43029/65. Divided out of 1, 032, 951. Heading G2H. An electro photographic apparatus is generally similar to that described in Specification 1, 015, 633, but has apparatus 70, Fig. 1, for fixing a heat fusible image to the surface of support material. The apparatus includes an endless conveyer 62 carrying sheet grippers 63 for transporting a sheet in a closed path from a receiving station through the fixing apparatus. The fixing apparatus has top and bottom radiant heating panels 521, 501 Fig.5 (not shown). Tubular heating elements 532, Fig.2 (not shown) are secured in grooves 531, each element including a coiled resistance wire (not shown). A gate 541 Fig.4 (not shown) has cut out portions 544 for the passage of the endless conveyer. The gate is normally opened by a solenoid SOL-2 Fig. 2 (not shown), but if the solenoid fails to operate sheet grippers 63, Fig. 1, forces the gate open. Wire guides 516, Fig. 5 (not shown) prevent sheets coming into contact with the lower heating panel.
Patent GB-1381588-A (GB)
Title: Process for the preparation of porous tablets
IPC: A61K9/20
Filed: 1973-09-14
Abstract: 1381588 Preparation of porous tablets BOEHRINGER MANNHEIM GmbH 14 Sept 1973 [20 Sept 1972] 43187/73 Heading A5B Porous tablets are prepared by hard-pressing the tablet components together with at least one inert solid adjuvant which sublimes at a temperature which does not adversely affect any of the tablet components and then subliming the adjuvant preferably in a vacuum. The adjuvant may be urethane, urea, ammonium carbonate, ammonium bicarbonate, hexamethylene-tetramine, benzoic acid, phthalic anhydride, naphthalene or camphor. The tablets may contain conventional water-soluble carrier materials for example sodium chloride, potassium chloride, borax, phosphates, oligosaccharides, polyethylene glycols and tensides.
Patent GB-1374463-A (GB)
Title: Quinoline derivatives
IPC: C07D215/56
Filed: 1971-09-16
Abstract: 1374463 Substituted quinoline-3-carboxylic acids E R SQUIBB & SONS Inc 16 Sept 1971 [18 Sept 1970] 43280/71 Heading C2C [Also in Division A5]  The invention comprises compounds of formula and their pharmaceutically acceptable salts, wherein Z is OH, C 1 -C 8  alkoxy, PhO or halogen; R 1  is H or C 1 -C 5  alkyl; R 2  is H, up to C 8  alkyl, alkoxy or alkenyl, C 3 -C 6 -ring cycloalkyl, Ph, CN, halogen, trihalomethyl or haloalkoxy; R 3 , R 4 , R 5 , R 6  are each H or C 1 -C 8  alkyl, or up to 2 of them may be Ph; R 7  is H, C 1 -C 8  alkyl or Ph; each Ph may be substituted and each alkyl or alkoxy may be substituted by Ph. These compounds are prepared by heating a dialkyl carboxyphenylaminomethylenemalonate at above 200‹ C., making the acid chloride of the 3-monoester of the appropriately substituted 4-hydroxyquinolinedicarboxylic acid so formed (the 4-OH group may be simultaneously converted to 4-halogen), and reacting this with the corresponding aziridine; the 4-alkoxy or aryloxy compounds may be made by reacting the 4-OH compounds with the appropriate halide or sulphate; and any of the ester products may be hydrolysed to the corresponding acids.