baber/WOPTO huggingface dataset:
Patent GB-434256-A (GB)
Title: Method of and device for grinding and polishing metallic coverings
IPC: B24B55/02
Filed: 1934-12-17
Abstract: 434,256. Grinding and polishing. GRUMPELT PROPELLERBAU GES., Flughafen, Hamburg, Germany. Dec. 17, 1934, No. 36096. Convention date, Oct. 30. [Class 60] In the grinding and polishing of metallic coverings, for example, coverings applied by spraying to wood &c., compressed air is fed to the part being ground &c., behind the grinding point, to avoid overheating. As applied to the grinding of a metal covering 2 on a wooden base 1 by a tool 3, which may comprise an emery coated cardboard disc, the air is supplied to a handle 5 by a conduit 7 fitted with a valve 8, and passes through a hollow shaft carrying the tool. In a polishing device, comprising a number of fabric discs on a shaft supported by handles, one of the handles carries a protecting cover for the tool on which cover is mounted a conduit for the air, which is fed directly behind the tool.
Patent GB-997468-A (GB)
Title: Method of utilizing auxiliary fuels in a cupola
IPC: C21C5/28
Filed: 1963-09-16
Abstract: In a method of reducing the coke requirement of a cupola furnace a hydrocarbon fuel is burnt externally to the furnace and the combustion gases are injected into the furnace above the level of the air-blast tuveres, the rate of air flow supplied through the tuyeres being at least 60% of the base flow rate, i.e. the rate when operating conventionally.  The combustion products may be injected at level where the charge has a temperature within the range 1600-2700 DEG F.
Patent GB-1300083-A (GB)
Title: New pencillin esters
Inventor: FREDERIKSEN ERLING KNUD
IPC: C07D499/00
Filed: 1969-07-18
Abstract: 1300083 α-Amino-penicillin esters LOVENS KEMISKE FABRIK PRODUKTIONSAKTIESELSKAB 6 March 1970 [13 March 1969 18 July 1969] 13402/69 and 36407/69 Heading C2A Novel esters of 6-(α-amino-arylmethyl)-penicillins having the Formula I, II or III and salts thereof with non-toxic acids, wherein n is 0-5; R 1  to R 9  are each H, CF 3 , NO 2 , NH 2 , OH, halogen, mono- or di-alkylamino, alkanoylamino, alkyl, alkoxy, alkylthio, alkanoyl, alkylsulphonyl, C 5 -C 7  cycloalkyl or cycloalkoxy, aralkyl, aralkylthio or aralkyloxy, with the proviso that at least one of R 1 , R 2  and R 3  (in Formula I) is other than H; and R 2  with R 1  or R 3 , R 5  with R 4  or R 6 , and R 8  with R 7  or R 9  can complete a carbocyclic ring; B is -O-, -S- or -NH-; and A is an aliphatic, alicyclic, aromatic or heterocyclic radial which may be substituted, are prepared either (a) by acylating the corresponding ester of 6-amino-penicillanic acid or a reactive derivative thereof with the appropriate α-substitutedarylmethyl carboxylic acid or its acylating derivative and if required, converting the α-substituent to -NH 2 ; or (b) by esterifying a 6-(α- amino-arylmethyl) penicillanic acid, or its salt, with a compound of Formula (VIII): X<SP>1</SP>CH 2 OCO(CH 2 ) n A wherein n and A are as above and X<SP>1</SP> is halogen, C 1 -C 16  acyloxy, or alkyl- or arylsulphonyloxy. The α-amino group may be protected during the reactions or may be replaced by a group (e.g. azido, nitro or halogen) which is subsequently convertible to -NH 2  by a method which does not cause destruction of the ester linkage or the lactam ring. The reactive derivative of the 6- aminopenicillanic acid may contain an N-trialkylsilyl radical. Suitable acylating agents may be the acid halide, anhydride or mixed anhydride or the free acid may be used in the presence of a condensing agent. Any hydroxy groups present are preferably also protected prior to the preparative reaction. In a modification of process (b), an easily available 6-acylamino penicillanic acid is esterified, the 6-acyl group subsequently being split off and replaced by the α-aminoaryl-methyl group of the inventive compound. Pharmaceutical compositions comprise a penicillin ester of Formula I, II or III above or a non-toxic salt thereof together with a pharmaceutically acceptable solid or liquid diluent or carrier.
Patent GB-367928-A (GB)
Title: Control of couch wire on paper making machines
IPC: D21F1/36
Filed: 1930-12-03
Abstract: 367,928. Guiding wire-cloths of papermaking machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London, and FOX, K. M., 2, Hill Street, Rugby. Dec. 3, 1930, No. 36455. [Class 96.] In automatic guides for the wire-cloth 12, Figs. 1 and 2, the bearing 15 of the guide roll 14 is moved by a motor 13 &c. controlled in a manner such as is described in Specification 316,193, [Class 38 (iii), Electric motor control systems &c.], by a relay 9 in the anode circuit of a three-electrode valve, increase in anode current occurring when the wire-cloth passes between the anode and grid coils 5, 4 of an oscillatory circuit. The grid circuit is tuned by a variable condenser 6, the filament supplied through a resistance 11 from d.c. busbars 23, 24 which also supply the anode voltage, the oscillations being byepassed from the relay 9 through a condenser 10. The coils 4, 5 are housed in recessed plugs 20 of insulating material, the leads passing through pipes 21 connected to a flexible tube 22. The motor 13 moves the bearing 15 through worm and screw gearing 17, 18, 16, the motor being reversed by reversal of phase rotation by contactors, the operating coils of which are supplied from the bus-bars 23, 24. When the wire has been directed sufficiently far from the coils the relay 9 is again thrown over, the oscillating change of position of the wire resulting in even wear. Alternatively the motor 15 may be actuated when the wire is displaced beyond certain limits a set of coils being positioned at each edge of the wire, or there may be two sets of coils near the same edge of the wire such that the motor 13 is actuated when the wire passes sufficiently clear of one set or sufficiently between the other.
Patent GB-785466-A (GB)
Title: Shroud ring construction for turbines and compressors
Inventor: CHAMBERLIN REGINALD HENRY DOUG
IPC: F01D9/04
Filed: 1954-12-16
Abstract: 785,466. Turbine and compressor stator casings. NAPIER & SONS, Ltd., D. Nov. 22, 1955 [Dec. 16, 1954], No. 36510/54. Classes 110 (1) and 110 (3). A shroud ring assembly for an axial-flow turbine or compressor comprises a tubular outer casing and an annular shroud ring disposed within the outer casing, the shroud ring comprising a series of separate, arcuate, circumferentiallyextending segments each of which is rigidly secured at one end only to the tubular outer casing and is supported at its other end from the fixed end of the next segment by means of a connection which permits limited free relative circumferential movement between the adjacent ends of the segments, but substantially prevents relative radial movement between the adjacent ends. The gas turbine shown comprises an outer tubular casing A, a ring of inlet nozzle guide vanes B, a row of rotor blades D mounted on a disc D<SP>1</SP>, a row of inter-stage guide vanes E and a further row of rotor blades F. The shroud ring assembly surrounding the rotor blades D comprises a number of arcuate shroud ring segments J each of trough shape having side walls Jl, J<SP>2</SP> and each having a boss J<SP>3</SP> at one end, a screwed bolt K passing through the outer casing A into a screwed bore J<SP>4</SP> in the boss whereby the end J<SP>3</SP> of the ring segment is rigidly fixed. The other end of the ring segment is formed with a step J<SP>6</SP> which co-operates with a step J<SP>5</SP> on the adjacent fixed end of the adjacent ring segment, whereby the free end of the ring segment is substantially located against radial movement but is permitted limited circumferential movement. A baffle member L is disposed within the trough of each ring segment and cooling air supplied through the guide vanes B to the space H is.caused by the baffle to flow adjacent the inner wall of each ring segment finally escaping through openings M into the working fluid stream. In a second embodiment the adjacent ends of the shroud ring segments are formed with axially-extending grooves instead of with interengaging step formations, and relative radial movement between the ends is prevented by means of a key engaging the two grooves. The sides J<SP>1</SP>, J<SP>2</SP> of the ring segments J are located between a flange A<SP>2</SP> on a ring rigid with the casing A, and a ring A<SP>4</SP> also rigid with the casing A.
Patent GB-1055078-A (GB)
Title: 17 beta methyl-20-alkyl-18-nor-17 alpha -pregnenes
IPC: A61K31/569
Filed: 1964-09-07
Abstract: Novel steroids of the formula <FORM:1055078/C2/1> wherein the A and B rings have one of the structures <FORM:1055078/C2/2> (wherein R is C1-4 alkyl and R1 and R11 ar each either hydrogen or acetyl) are prepared by reacting steroids of the formula <FORM:1055078/C2/3> (wherein the A and B rings have one of the 3-hydroxy or -acyloxy-containing structures depicted above) with an alkyl Grignard reagent at a temperature between - 10 DEG  and + 30 DEG  C. in an inert, anhydrous, organic solvent with subsequent mild hydrolysis in water, to give a steroid of the first general formula above wherein R11 is hydrogen and the A and B rings are as in the starting material.  Then subsequently 3b -acetates are hydrolysed to 3b -ols, the 3b ,16a -diols are acetylated to the diacetates (which can also be obtained by acetylation of the 3-mono-acetates) and these may be hydrolysed to give the 3b ,16a -diols again.  The D 5-3-ols or their acylates may be catalytically hydrogenated to the 5,6-saturated compounds.  The D 4-3-ones are prepared by oxidation of the D 5-3-ols, and on catalytic hydrogenation they yield the ring A saturated 3-ones.  The 16-monoacetoxy compounds are prepared by standard methods from the 3-oxo-16-ols.
Patent GB-1529149-A (GB)
Title: Microswitches
IPC: H01H9/54
Filed: 1977-09-01
Abstract: 1529149 Photo-electric switch STANDARD TELEPHONES & CABLES Ltd 1 Sept 1977 36611/77 Addition to 1527342 Heading G1A [Also in Division H 1] A micro-switch as in Parent Specification has a flattened S configuration in the spring member 6 with an extension 1 acting as the shutter. This is stated to provide added resilience and increase the life of the switch.
Patent GB-1176359-A (GB)
Title: Regeneration of Catalysts Useful in the Synthesis of Unsaturated Esters from Olefins
IPC: C07C69/54
Filed: 1967-08-10
Abstract: 1,176,359. Regenerating catalysts by removing pitch. SOC. ITALIANA RESINE S.p.A. 10 Aug., 1967 [29 Aug., 1966], No. 36744/67. Heading B1E. [Also in Division C2] Catalysts comprising Pd and Cu salts which have lost activity due to deposition of pitchy substances during use in the conversion of olefins to unsaturated esters are regenerated by treatment with aqueous NaOH not less than 20% strength at 60-70‹C., recovering of the salts by separation, reduction and reoxidation to the original salts. In an example a contaminated catalyst comprising CuCl 2 , CH 3 COONa PdCl 2  in aqueous CH 3 COOH is evaporated to dryness, treated with 20% NaOH at 65-70‹C with stirring, buffered with glacial CH 3 COOH to pH 5.8, aerated at 70‹C, filtered, and the metal values collected in the filtrate. Thereafter ethylene reduction and oxidation in conc. HCl followed.
Patent GB-344843-A (GB)
Title: Electrically operated reciprocating apparatus applicable to liquid delivery and control
IPC: F04B17/04
Filed: 1929-11-30
Abstract: 344,843. Regulating liquid levels. SCOTT, M. D., Denholme, Windmill Hill, Enfield, Middlesex, and MORRIS, J. N., 5, Redcliffe Square, London. Nov. 30, 1929, Nos. 36782/29 and 6400/31. Addition to 343,000, [Group XXVIII]. [Class 123 (i).] In an electrically operated pump for supplying a carburetter &c., in which the make and break of the circuit of the operating solenoid are effected by short-circuiting a magnetic flux, as described in the parent Specification, the float chamber is dispensed with, or is separate from the pump, or is formed by a continuation of, or enlargement of the pump barrel. The pump discharge pipe 68, Fig. 3, may discharge into a float chamber 71, or may be connected to the float chamber through a branch pipe 73. The float 74 may carry an iron mass 3 for short-circuiting the flux of a magnet 1 and so opening a switch 5, 6, 7 in the pump solenoid circuit when the liquid level rises. Alternatively, the float may carry a magnet for opening a switch against the action of a spring when the liquid rises, or for holding a switch closed when the liquid level is low. A fuse and an indicator, such as a lamp, may be arranged in the solenoid circuit. A vent in the float chamber may be closed by a buoyant valve if the float chamber is flooded, or the vent may be closed by a valve carried by the float. Alternatively a cock may be provided in a vent pipe 72, or in the pipe 73, to permit the supply of fuel under pressure for starting &c. In a modification, Fig. 12, the float 89 is arranged in the pump barrel above the plunger 15, and carries an armature 3 for alternately short-circuiting the magnetic flux of magnets 1, 2 and so operating a switch 5, 6, 7 in the circuit of the operating solenoid 22. The pump sucks through a valve 86 and discharges through a valve 87, and, in normal working, an axial bore in the plunger is closed by the float. If the demand decreases, the float is held suspended by the liquid and maintains the switch open. In modifications the bore in the plunger is controlled by a ball valve, which may be gravityoperated, or may be held to its seating magnetically when the solenoid is energized. In a further modification the discharge pipe is arranged as a branch from the barrel above the plunger. The float chamber 114, Fig. 16, may form an enlargement of the pump barrel. An iron mass 3 carried by the pump rod 118 alternately shortcircuits the flux of the poles of magnets 1, thus operating a lever 5 pivoted at 115 and carrying a contact 6 engaging a contact 7 in the circuit of the solenoid 22. The float may be attached to the rod 118, or may engage projections 120 on the rod, to hold the plunger in the raised position if the liquid level rises, and so maintain the switch open. A chamber 106 contains a filter 111 through which the liquid passes twice before entering the pump barrel.
Patent GB-1064494-A (GB)
Title: Improvements in wet spinning
IPC: D01F6/08
Filed: 1963-09-19
Abstract: 1,064,494. Wet-spinning. ACSA, APPLICAZIONI CHIMICHE S.p.A. Sept. 19, 1963 [Sept. 27, 1962], No. 36893/63. Heading B5B. A solution of a vinyl chloride polymer having a syndiotacticity greater than 2, maintained at 90‹ C. to 150‹ C. is wet spun by extrusion into a coagulation bath maintained at 30‹ C. to 80‹ C., the spinning solution and the coagulum bath being in containers adjacent to one another but thermally isolated from one another to an extent sufficient to maintain the stated temperature difference between them. Apparatus for the process comprises means for maintaining the spinning solution at the desired temperature and a vessel for holding the coagulum bath provided with an opening in its side in which a spinneret is fixed so that, when the vessel is filled, only the spinneret face is in contact with the bath. In one embodiment (not shown), spinning solution passes from a tank via duct (1) to metering pump (2), filter (3) and thence to spinneret (4) which is attached to spinneret holder (5) directly coupled to vessel (6) containing coagulating liquid. The temperature of the spinning solution is maintained by jacket (7) in which hot oil circulates. The difference in temperature between spinning solution and coagulating liquid may be e.g. 40‹ C. to 100‹ C. thus permitting the spinning of polymers which require a high spinning solution temperature but a volatile coagulating bath. Specified solutions are solutions of highly syndiotactic vinyl chloride homopolymer or copolymers or polymer mixtures containing not less than 85% by weight of vinyl chloride in cyclohexanone, dimethylformamide, dimethylacetamide or nitrobenzene. Specified coagulants are water, methanol, ethanol, isopropanol, acetone, acetic acid and tert-butanol.
Patent GB-1524552-A (GB)
Title: Process and apparatus for the purification of wetprocessed phosphoric acid
IPC: C01B25/234
Filed: 1975-09-09
Abstract: 1524552 Purifying phosphoric acid HOECHST AG 9 Sept 1975 [4 Oct 1974] 37054/75 Heading C1A A process for purifying wet-processed phosphoric acid containing free sulphuric acid comprises treating the acid in a reaction zone at a temperature of 70 C.-100 C. with a calcium compound, CaSO 4 .¢H 2 O seed crystals, one or more alkali metal compounds, H 4 SiO 4  or a derivative thereof, one or more sulphide compounds and active carbon thereby precipitating the sulphate ions in the form of CaSO 4 .¢H 2 O, removing the suspension so-formed from the reaction zone, recycling a portion of the suspension to the reaction zone; separating the balance of the suspension into purified phosphoric acid and a precipitate; transforming the precipitate into an aqueous suspension containing up to 30 wt. per cent of phosphoric acid and converting the CaSO 4 .¢H 2 O in said suspension at 20-70 degrees into CaSO 4 .2H 2 O; separating the aqueous phase of the suspension from the solid matter therein, and water-washing the solid matter; recycling a proportion of the aqueous phase so separated, and a proportion of the wash water, for use in suspending and converting CaSO 4 .¢H 2 O as aforementioned; and combining the balance of the aqueous phase and wash water with the said purified phosphoric acid.
Patent GB-789769-A (GB)
Title: Improvements in making casting molds
IPC: B22C9/04
Filed: 1955-12-28
Abstract: 789,769. Moulding-processes. AUSTENAL LABORATORIES, Inc. Dec. 28, 1955 [Jan. 5, 1955], No. 37111/55. Drawings to Specification. Class 83 (1). In a moulding process, an expendable-pattern is coated with a liquid-suspension of a finegrained refractory which is caused to set hard, and the coated pattern is supported in a flask and surrounded with dry unbonded granular refractory material which is packed to substantially its practical maximum-bulk-density, as by shaking, vibrating, tamping, &c. The flask may be closed at each end by a refractory cement-layer. Alternatively, one end-closure may be in the form of a perforated metal plate pressed against the back-up refractory by a threaded retainer-ring, clamps, &c. Such a plate may also be used to hold a coarse-grained refractory back-up in position and under pressure, while a finer-grained refractory is percolated through the holes of the plate and into the interstices between the coarserparticles. To minimize differential expansion and contraction of the flask and refractory back-up during preheating, the flask is enclosed in a layer of heat-insulating material, such as asbestos-paper, high-temperature ceramic paint or cement, or a highly-reflective layer of bright metal. Specification 601,260 is referred to.
Patent GB-1199596-A (GB)
Title: Improvements in or relating to Electro-magnetic Field Generating arrangements
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: H01F7/18
Filed: 1967-08-14
Abstract: 1,199,596. Switching systems; control of motors. MARCONI CO. Ltd. 13 May, 1968 [14 Aug., 1967], No. 37287/67. Headings H2H and H2J. [Also in Division H3-H5] The rapid change of current in a coil in response to a control signal is assisted by removing a shunt damping resistor when a difference occurs between the control signal and the coil current and by automatically actuating a circuit to discharge excess voltage across the coil when the desired current is reached. The coil may be a cathode ray tube deflection coil or the coil of a solenoid or electric motor controller. The current in coil 1 is controlled via a driving amplifier 2 by a signal at terminal IN. If the signal changes a comparator 9 operates a transistor switch 6 to remove a damping resistor 5 so that the current changes rapidly due to resonance of the coil with self or added capacitance 4 until the desired value of current is reached whereupon the comparator restores the damping resistor. The comparator at the same instant also momentarily operates a switch 7 to discharge the capacitance. The comparator operates for both increases and decreases of current.
Patent GB-1075074-A (GB)
Title: Water-soluble metalliferous monoazo dyestuffs and processes for their manufacture
IPC: C09B62/515
Filed: 1964-09-01
Abstract: The invention comprises water-soluble complex metal compounds of monoazo dyestuffs of the general formulae <FORM:1075074/C4-C5/1> or <FORM:1075074/C4-C5/2> wherein R represents the radical of resorcinol or a derivative thereof capable of coupling, Z represents Cl, Br, a sulphuric ester, aryloxy, dialkylamino, trialkylammonium or pyridinium group capable of being split off by an alkaline agent, X, standing in o-position to the azo group, represents a hydrogen atom or a grouping known to be capable of forming a metal complex, D represents a radical of the benzene or naphthalene series and at least one of the radicals R and D contains at least one group imparting solubility in water.  They may be prepared by diazotizing 1 mol. of a primary aromatic amine of the general formulae <FORM:1075074/C4-C5/3> <FORM:1075074/C4-C5/4> or <FORM:1075074/C4-C5/5> and coupling with 1 mol. of resorcinol or a derivative thereof capable of coupling, and if a diazo component of Formula (5) is used, esterifying the OH group of the b -hydroxyethyl-sulphone group, and metallizing the dyestuffs obtained by means of a metal-yielding agent, if desired in the presence of an oxidizing agent.  Specified metal-yielding agents are Co, Cr, Cu and Ni salts such as cobalt sulphate, chromium alum, copper-sulphate, copper acetate or nickel sulphate, and complex-bound metal-yielding agents such as complex chromium or cobalt compounds of aliphatic hydroxy-carbocylic acids, or of dicarboxylic acids, and complex chromium compounds of aromatic ortho-hydroxy carboxylic acids.  The complex metal dyes are useful for dyeing and printing various fibrous materials, especially natural or regenerated cellulosic materials, in the presence of acid-binding agents.  Examples are given for the production of the dyes.
Patent GB-1140859-A (GB)
Title: Universal joint having boot means
Inventor: GEE THOMAS ARTHUR
IPC: F16D3/72
Filed: 1967-08-14
Abstract: 1,140,859. Universal joints. EATON YALE & TOWNE Inc. 14 Aug., 1967 [26 Jan., 1967], No. 37315/67. Heading F2U. In a vehicle drive shaft universal joint comprising three nested frusto-conical spring units 25, 26, 27 press-fitted in driving and driven members 12, 13, each spring unit including a number of intercalated helical springs, the inner, intermediate and outer spring units 25, 26, 27 being respectively left, right and lefthand, as described in Specification 1,096,704, a lubricant retaining corrugated rubber boot 40 closely surrounds the spring units and is retained thereon, against centrifugal deformation, by bands 43 fitted between the corrugations 42, the boot being retained at its ends by clips 41. As shown, the bands 43 are each of different diameter to correspond to the frusto-conical spring units, the rubber boot 40 being initially, e.g. before fitting the bands, of uniform diameter throughout its length. In Fig. 2 (not shown) the retaining bands 43 are all of the same diameter, the internal shape of the boot (40<SP>1</SP>) being tapered to correspond to the spring units. The bands may be of flexible material permitting limited radial movement of the spring units.
Patent GB-1502622-A (GB)
Title: Lubricating oil compositions
IPC: C10M129/24
Filed: 1975-10-06
Abstract: 1502622 Lubricants SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 6 Oct 1975 [10 Dec 1974 11 Sept 1975] 37401/75 and 19662/77 Divided out of 1502622 and 1502619 Heading C5F A hydroprocessed mineral lubricating oil, e.g. a hydrocracked and hydrofinished vacuum distillate, is stabilized by a minor proportion of a quinone of the formula where R 3  is three or four of the groups R 1 , which may be the same or different, are tertiary alkyl, and the fourth is H or alkyl, each of the groups R 2 , which may be the same or different, is H or alkyl, and n is 0 or an integer from 1 to 4. The oil may also comprise an antioxidant, preferably an amine of the formula where R 4  is an organic group and each R 5  and R 6  is H or an organic group.