baber/WOPTO huggingface dataset:
Patent GB-449147-A (GB)
Title: Manufacture of therapeutically active hydantoin derivatives
IPC: C07D405/06
Filed: 1934-09-14
Abstract: Therapeutically active hydantoin derivatives are prepared by introducing into a compound of the general formula <FORM:0449147/IV/1> where R1 is furyl or furalkyl and R2 is alkyl, at one or both nitrogen atoms an alkyl, alkylene or aralkyl group, by the action of a reactive ester of an inorganic or an organic acid if desired in the presence of an agent which binds the acid, or by the action of other alkylating agents such as a diazo paraffin. Both nitrogen atoms may be substituted in one operation or the reaction may be carried out in stages.  In examples, 3-methyl-5 : 5-ethylfuryl hydantoin is prepared by dimethylsulphate on 5 : 5-ethylfuryl hydantoin.  3-Methyl-5 : 5-n-butyl-furyl hydantoin is prepared by methyl iodide on 5 : 5-n-butyl-furyl hydantoin, 3-alkyl-5 : 5-ethyl-furyl hydantoin is prepared by alkyl bromide on 5 : 5-ethyl-furyl hydantoin, 1 : 3-dimethyl - 5 : 5 - ethyl - furyl hydantoin is prepared by dimethyl sulphate on 5 : 5-ethylfuryl-hydantoin in one operation.  Other compounds mentioned are 3 : 5-dimethyl-5-b -furethylhydantoin from 5 : 5-methyl-b -furethylhydantoin, 3 : 5-diethyl-5-furyl-hydantoin from 5 : 5 - ethyl - furyl - hydantoin and diethylsulphate, 3-benzyl-5 : 5-ethyl-furyl-hydantoin from 5 : 5-ethyl-furyl-hydantoin and benzyl chloride in the presence of potassium carbonate, 1-methyl-3 : 5-diethyl-5-furyl-hydantoin from 3 : 5-diethyl-5-furyl-hydantoin methyl iodide and potassium hydroxide, 1 : 3 : 5-triethyl-5-furyl-hydantoin from 5 : 5-ethyl-furyl-hydantoin and diethyl sulphate.  The 5 : 5-ethyl-furyl-hydantoin, the 5 : 5-n-butyl-furyl-hydantoin and the 5 : 5-methyl-b -furethyl hydantoin are made by the action of a cyanide and ammonium carbonate in the presence of water or an organic solvent on the appropriate ketone as described in Specification 451,268.
Patent GB-812251-A (GB)
Title: Improvements relating to centrifugal separator
Inventor: TROLAND EDWIN PARKER
IPC: B04C5/15
Filed: 1957-08-22
Abstract: 812,251. Centrifugal separators. BIRD MACHINE CO. Aug. 22, 1957, No. 26515/57. Class 23 A cyclone has a baffle 50 between the outlets for fluid and solids, and has the outlet for solids controlled by a valve 30. The valve is reciprocated by a fluid actuated piston and cylindei arrangement 34, 36. The outlet for solids is connected to a trap 20 having a toggle operated closure 22 and flushing fluid pipes 26, 28. The diameter of the baffle is at least as great as that of the outlets and its edge is spaced from the wall 10 of the cyclone by an amount equal to at least one-tenth of the diameter of the wall.
Patent GB-1468993-A (GB)
Title: Support rail and securing device for electrical apparatus
IPC: H02B1/052
Filed: 1974-06-14
Abstract: 1468993 Component assemblies UNELEC 14 June 1974 [15 June 1973] 26584/74 Heading H1R [Also in Division H2] Electrical control panel equipment 15 (Fig. 2), is mounted on rail 11 by means of an insulating support member 1 having an electrical contact member 3 and a mechanical connection member 2 secured to it, member 2 functioning to secure support member 1 to rail 11 and also to secure, by co-operation of its end 18 with a hollow 17 in the housing of equipment 15, the equipment to member 1. Opening 6 for screw 4 in member 1 provides sufficient play for assembling it on rail 11, and with screw 4 loosened, member 1, although trapped on rail 11, is slidable along it. Equipment 15 is mounted on support 1 by engaging end 18 and hollow 17, the equipment being pivoted from an initial tilted position so that blade 19 of contact 3 engages female contact 20. Mechanical connection member 2 can be used with other standard sectioned rails (Fig. 3, not shown).
Patent GB-1241864-A (GB)
Title: Titanium carbide
IPC: C09C1/36
Filed: 1968-06-05
Abstract: 1,241,864. Titanium carbide. PPG INDUSTRIES Inc. 5 June, 1968 [6 June, 1967], No. 26673/68. Heading C1A. [Also in Divisions B3 and C4] Titanium carbide having a particle size of 0.01 to 0.5 microns is prepared by subjecting a halogenated hydrocarbon or a hydrocarbon and a halide of titanium e.g. TiCl 4  + CH 4  to a hydrogen plasma, at least one of the reactants being introduced into the plasma through opposed inlets. The reactants are preferably introduced separately into the plasma. Argon may be introduced into the plasma in admixture with one of the reactants and/or hydrogen.
Patent GB-921467-A (GB)
Title: New 4-substituted 1,2-diaryl-3,5-dioxo pyrazolidines and process for their production
Filed: 1960-08-03
Abstract: The invention comprises 1,2-diaryl-3,5-dioxy-pyrazolidines, substituted in the 4-position, of the general formula <FORM:0921467/IV(a)/1> wherein Ar1 and Ar2 represent phenyl radicals which can be substituted in the same or different manners by alkyl or alkoxy groups having at most 6 carbon atoms, an alkanoyloxy group having at most 6 carbon atoms, a benzyloxy group or a hydroxy group, Ar3 represents a phenyl radical which can be substituted by alkyl or alkoxy groups having at most 6 carbon atoms and/or an alkanoyl or alkanoyloxy group having at most 6 carbon atoms, the benzyloxy group or the hydroxy group, and X represents oxygen or sulphur, and a process for the preparation thereof by reacting a 1,2-diaryl-3,5-dioxo-pyrazolidine of the general formula <FORM:0921467/IV(a)/2> with an aryl isocyanate or isothiocyanate of the general formula:  Ar31-N=C=X wherein the radicals Ar11, Ar21 and Ar31 have the meanings given above for Ar1, Ar2 and Ar3 except for the phenyl radicals substituted by a hydroxy group, and if desired reacting a compound in which at least one of the radicals Ar11, Ar21 and Ar31 is substituted by a benzyloxy group or an alkanoyloxy group, and in the former case, wherein X represents preferably oxygen, by hydrogenolysis or hydrolysis into a compound in which at least one of the phenyl radicals Ar1, Ar2, and Ar3 is substituted by a hydroxy group.  Illustrative products of the invention are 1,2-diphenyl-4phenyl carbamyl-3,5-dioxo-pyrazolidine, 1,2diphenyl - 4-(21,51-dimethoxyphenyl carbamyl)3,5 - dioxo - pyrazolidine, 1,2 - diphenyl-4-(phydroxyphenyl thiocarbamyl) - 3,5 - dioxopyrazolidine, 1-(p-benzyloxyphenyl)-2-phenyl4 - (o1 - acetoxy - phenyl-carbamyl)-3,5-dioxopyrazolidine and 1-(p-hydroxyphenyl)-2-(m1methyl - phenyl) - 4-phenyl-carbamyl-3,5-dioxopyrazolidine.
Patent GB-1307414-A (GB)
Title: Process of recovering acrylonitrile from aqueous solutions
IPC: C07C/
Filed: 1970-06-03
Abstract: 1307414 Recovering acrylonitrile STAMICARBON NV 3 June 1970 [11 June 1969] 26845/70 Heading C2C [Also in Division C1] Acrylonitrile is recovered from an aqueous ammonium salt solution which has been obtained by cooling hot reaction gases from an acrylonitrile synthesis by direct contact with a mineral acid containing aqueous-solution, and which is contaminated by a small proportion of acrylonitrile, by distilling or stripping the aqueous ammonium salt solution in a distillation column wherein the bottoms temperature is kept below 100‹ C., and removing overhead acrylonitrile vapours.
Patent GB-318624-A (GB)
Title: Improvements in or relating to safety devices for pipes supplying gas to autogenous welding and like burners
IPC: A62C4/02
Filed: 1929-09-04
Abstract: 318,624. Sulzer frees Soc. Anon. Sept. 8, 1928, [Convention date]. Hydraulic-seal safetyapparatus.-A hydraulicseal safety-apparatus for use in the pipes supplying gas to burners, such as those used in autogenous welding apparatus, is fitted with a byepass having a closing- device, such as a mercury seal, through which the gas supply normally passes, the hydraulic seal only coming into operation when a high back - pressure occurs. The hydraulic seal comprises a U-tube 3, filled with water to the level a through a pipe 14 and adapted to be drained through a branch 15. Gas enters by a pipe 1 and passes to the burner through a pipe 4 while a pipe 6, dipping into the outlet branch, communicates through a reservoir 7 and pipe 8 with the bottom of the seal and serves to collect any liquid ejected from the main seal and return it thereto. The mercury seal is arranged to offer a less resistance to the normal flow of the gas and a greater resistance to its flow in the reverse direction than that offered by the main hydraulic seal. This seal comprises a pipe 11<1> dipping into mercury contained in a cup 16 adjustably mounted on a chamber 9 connected by a pipe 10 to the outlet branch of the main seal. The vertical pipe 11<1>, in place of the cup, may be made adjustable.
Patent GB-386047-A (GB)
Title: Gravity ladder hook for supporting any receptacle, apparatus or tool on ladders
IPC: E06C7/14
Filed: 1931-09-28
Abstract: 386,047. Ladder brackets. WEATHER. STON, A. J. P., 245, Friern Road, East Dulwich, London. Sept. 28, 1931, No. 26971. [Class 20 (ii).] A ladder bracket is formed of a cranked vertical supporting bar A with hooked ends and a hooked bar B standing at right-angles to the main bar to support a bucket or the like at the side of the ladder. The lower hook is of taper section to fit over a rung while the upper hook is of parallel section simply to engage a rung for positioning, so that the bracket may be used with varying spacing of rungs. The lower hook may be formed to embrace a side of the ladder in which case the bracket hangs from the upper hook.
Patent GB-1201528-A (GB)
Title: Improvements in or relating to the manufacture of insulated electric cables
Inventor: NICHOLSON PETER
IPC: B29C48/32
Filed: 1968-06-06
Abstract: 1,201,528. Coating cores by extrusion. BRITISH INSULATED CALLENDER'S CABLES Ltd. 5 June, 1969 [6 June, 1968], No. 27056/68. Heading B5A. [Also in Division G3] An electrical conductor 1, which may comprise one or more bare or covered wires, receives a covering 8 by passage through an extrusion crosshead, the covering being caused to collapse firmly on to the conductor by providing a predetermined pressure difference between the inside of a treatment chamber 5, which contains fluid at superatmospheric pressure, and the interior of core tube 14 connected to inner die 12. Chamber 5 may effect curing of the covering, e.g. using steam, or cooling of the covering, e.g. using water, or both operations. Fluid, e.g. nitrogen, is injected into core tube 14 during normal use. A vacuum may be applied to the tube at start up to provide the predetermined pressure difference, with subsequently this difference being maintained by a differential control device as, e.g. steam and nitrogen respectively, are injected into chamber 5 and tube 14. Covering materials specifically mentioned are natural rubber, neoprene, butyl, silicone and styrene butadiene rubber and polyethylene. Two differential pressure control devices are described, in one of which, Fig. 3 (not shown), the movement of a shaft (23) connected to a pressure control device (21) and carrying mercury bulb switches (24, 25) causes actuation of the switches (24, 25) when the pressure difference falls below or exceeds a predetermined amount respectively. Closure of switch (24) opens electromagnetic valve (26) to leak nitrogen from the core tube 14 and closure of switch (25) opens electro-magnetic valve (27) to allow injection of nitrogen into the core tube. Manual valves (28-31) are provided, e.g. for use during start-up or shut down and a valve (32) and vacuum pump are used at start-up. The second control system, Fig. 4 (not shown), comprises a differential pressure cell (41), a mechanical-pneumatic transducer (42) and a receiver/controller (44) pre-set at a required pressure difference. In operation, a pneumatic signal from transducer (42), proportional to the pressure difference across the extrudate, is transmitted to the receiver/controller (44), and from the controller is sent a pneumatic signal to diaphragm flow valve (47) proportional to the error between the measured pressure difference and the pre-set value. The flow of nitrogen to core tube 14 is automatically increased or decreased as valve (47) opens or closes in response to the signal. Continuous leakage of nitrogen takes place through valve (48). Diaphragm flow valve (49), associated with the vacuum pump, may be controlled by a solenoid valve (50) actuated by pressure change in chamber 5.
Patent GB-177185-A (GB)
Title: Improvements in and relating to fluid fuel pressure systems
IPC: F23K5/02
Filed: 1920-09-23
Abstract: 177,185. Maule, H. G. Sept. 23, 1920. Closure members.- In a liquid fuel supply system for furnaces, interconnected valves 13, 11, 12, controlling respectively the fuel feed, the pressure-inducing means for the fuel feed, and a connection from a suction tank to the fuel pipes are operable simultaneously bv means of a cable 33 or hand bar 32, in the event of a leakage. The valves 11, 12, 13 each consist of a casing 22 provided with inlet and outlet openings 23, 24 and containing a rotatable body 25 carrying a spring pressed element 27 which may be moved to cover or uncover the outlet 24,
Patent GB-872670-A (GB)
Title: Process for the production of derivatives of n-fluorosulphonyl carbamic acid
Filed: 1959-08-07
Abstract: The invention comprises the compounds of formula RCONHSO2F, where R is amino, diethylamino, cyclohexylamino, phenylamino, diphenylamino, ethoxy, octoxy, 2,2,2-trichloroethoxy, phenoxy, 4-nitrophenoxy, or phenylhydrazino; and the production of these and other derivatives of N-fluorosulphonyl carbamic acid by reacting N-carbonyl sulphamic acid fluoride with a compound containing reactive hydrogen; inert organic solvents may be used.  Specified compounds containing reactive hydrogen are ammonia, dimethylamine, diethylamine, isobutylamine, diisobutylamine, cyclohexylamine, aniline, N-methylaniline, diphenylamine, hydrazine, methylhydrazine, dimethylhydrazine, phenylhydrazine, ethanol, tricholoroethanol, octanol, phenol, 4-nitrophenol, ethylene glycol, furfuryl alcohol, and tetrahydrofurfuryl alcohol. Various procedures are described depending on whether the reactive hydrogen compounds are gases, liquids or solids, and whether the products are liquids or solids and soluble or insoluble in the reaction medium.  Specification 840,214 is referred to.ALSO:Insecticidal compositions comprise the 2,2,2-trichloroethyl and 4-nitrophenyl esters of N-fluorosulphonyl carbamic acid, in combination with dimethylformamide, benzyl-oxydiphenylpolyglycol ether and water.  Specification 840,214 is referred to.
Patent GB-1219210-A (GB)
Title: Improvements in or relating to the display of electrical intelligence
IPC: H04N5/74
Filed: 1968-06-07
Abstract: 1,219,210. Light modulators STROMBERG DATAGRAPHICS Inc. 7 June, 1968 [9 June, 1967], No. 27152/68. Heading H4F. [Also in Division H1] In a visual display system, electrical intelligence to be displayed on screen 27, Fig. 1, modulates an electron beam 17 which is directed on to a dielectric membrane 13 which supports a thin liquid film 19. The surface contour of the liquid film is disturbed as a result of the impingement of the electron beam and the resulting deformations are rendered visible by directing a light beam from source 23 through the evacuated tube 11 and transparent membrane 13 and film 19. In this embodiment light rays which pass through the disturbed portions of the film are refracted out of the optical projection arrangement 25 and thus only those light rays which pass through undisturbed portions are projected on to the screen 27. The surface of the membrane 13 disposed towards the electron gun may be coated with a secondary emitting material or the membrane material itself may comprise secondary emitting material. In a second embodiment, Fig. 4 (not shown), a light reflecting layer is interposed between the membrane and the liquid film and light rays which pass through disturbed portions of the film are displayed, the light rays passing through the film twice. The electron gun may operate in "erase" and "write" conditions or alternatively a flood gun may be positioned to direct an electron beam against the membrane or the secondary emitting surface. A collector ring 47 which supports membrane 13 may be maintained at a fixed potential to collect the secondary electrons, or a secondary electron collector screen may be provided.
Patent GB-991880-A (GB)
Title: Improved shuttle car adapted for use in coal and other mines
Inventor: SANDEMAN CARGILL SPEIRS
IPC: E21F13/02
Filed: 1960-08-05
Abstract: 991,880. Endless conveyers. MAVOR & COULSON Ltd. Aug. 2, 1961 [Aug. 5, 1960], No. 27160/60. Heading B8A. [Also in Division B7] In a shuttle car in which the ground wheels 4, 5 are driven by hydraulic motors 30, 31 supplied by variable delivery pumps 22, 23 driven by an I.C. engine, 20 (see Division B7), there is provided an endless conveyer consisting of a series of slats 16 which are carried at both sides by chains 17 trained round sprockets 18 at opposite ends of the conveyer frame 19. The sprockets 18 at the front end of the car are secured and driven by the shaft 40 of a rotating hydraulic motor 41 driven by a variable delivery pump 24 also driven by engine 20.
Patent GB-510489-A (GB)
Title: An improved soundpost for violins and the like musical instruments
IPC: G10D3/02
Filed: 1938-09-19
Abstract: 510,489. Stringed musical instruments. BULLOUGH, R. Sept. 19, 1938, No. 27222. [Class 88 (ii)] The soundpost situated between the belly T<1> and the back T<2> of a violin or like stringed instrument comprises a lozenge-shaped open frame C having longitudinal struts A, B resting in grooves at right angles to one another in the neck and tail blocks G, H.
Patent GB-751337-A (GB)
Title: Improvements in or relating to moulds for casting single-type bodies
Inventor: JUPP ROBERT ALFRED
IPC: B41B7/04
Filed: 1954-09-21
Abstract: 751,337. Type-making machines. MONOTYPE CORPORATION, Ltd. Sept. 21, 1954, No. 27247/54. Class 100 (3). Moulds.-A single-type casting mould is furnished with a main full size blade and a cut-off blade, the latter being actuated by an air motor, the supply of air to which is separately controlled by two valves coupled to a constant supply of air according to whether the blade is to be advanced or retracted. One or other of the valves is opened by a lever mounted on an intermittently operated rocking arm, and the position of the lever is determined by a directing piece set by the movement of a piston operated intermittently by air controlled by signals in a perforated strip. The mould comprises a main blade B<SP>1</SP>, Fig. 6, a cut-off blade B<SP>2</SP>, and a cut-off blade B<SP>3</SP> actuated by a lever C<SP>1</SP>, Figs. 6 and 12, and a bar C<SP>2</SP> coupled to the air motor C, Figs. 3 and 12. Valves D<SP>10</SP>, D<SP>11</SP> are held closed by springs and communicate with a source of air through a pipe D<SP>12</SP>, and one of them is opened during each machine cycle by an opersting lever E coupled to an arm F which is raised and lowered during each cycle. Which valve is opened depends on the position of the lever E as set by a directing piece D<SP>15</SP> controlled by a slide D<SP>7</SP>, which is moved against a spring D<SP>8</SP> when air is admitted to the cylinder D<SP>6</SP> through a pipe D<SP>5</SP>. When perforations in the control strip are presented at the air bar X<SP>2</SP> to uncover ports X, X<SP>1</SP>, air from port X operates an airvalve D<SP>2</SP>, whereupon air from X<SP>1</SP> passes to the pipe D<SP>5</SP>. Air through ports X, X<SP>1</SP> singly is supplied to positions Y, Y<SP>1</SP> for normal operations of the matrix positioning mechanism.
Patent GB-1145905-A (GB)
Title: A process for producing an antifungal and antiprotozoal substance
IPC: C07D311/76
Filed: 1966-06-17
Abstract: 1,145,905. Antibiotics; substituted isocoumarin. GREEN CROSS CORP. 17 June, 1966 [30 June, 1965], No. 27250/66. Headings C2A and C2C. An antifungal and antiprotozoal substance, 4(# - hydroxyacetyl) - 8 - hydroxy - isocoumarin, also known as oosponol, of formula is prepared by cultivating mycelia of the species Trametes albida, genus Trametes, family Polyporaceae, class Basidiomycetes, especially strain ATCC 20119, in a medium containing assimilable sources of carbon, nitrogen and inorganic salts at a pH below 7À0. A temperature of 25 to 28 C. and pH of 2 to 5 is preferred. The antibiotic is extracted from the clarified broth with ethyl acetate or chloroform. After removal of the solvent, the residue is washed with petroleum ether, dissolved in chloroform, passed down a column of silica gel and eluted therefrom with chloroform or chloroform-methanol (9 : 1). The antibiotic is crystallized from the eluate.
Patent GB-763050-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60P1/64
Filed: 1952-10-30
Abstract: 763,050. Vehicles with transferable bodies. HILL, G. R. Nov. 19, 1953 [Oct. 30, 1952], No. 27296/52. Class 78 (4). A removable body 6 rests on a platform 4 which may be raised by jacks 5 from the chassis of a vehicle and the body may be supported by telescopic or folding legs 9 from the ground so that the vehicle may be withdrawn from beneath it when the platform 4 has been lowered. In an alternative construction the body may be raised from the chassis by a pair of longitudinal rails which when lowered, are housed in grooves in a platform on the chassis. In both constructions the platform of the vehicle may be used for carrying a load when the body 6 is removed. The body 6 may have drop-down sides and the legs 9 may carry ground wheels. The jacks 5 may be powered from tipping mechanism on the vehicle or from a hand pump.
Patent GB-788955-A (GB)
Title: Improvements in or relating to copolymers their production and use
IPC: G03C1/053
Filed: 1955-09-26
Abstract: A linear copolymer consisting essentially of recurring units of the formul  <FORM:0788955/IV (a)/1> wherein X or Y is hydroxyl and the other an amino radical or trialkylamino cation radical, i.e. a radical of the formula <FORM:0788955/IV (a)/2> and which copolymer comprises 94 to 51 per cent by weight of the first unit and 6 to 49 per cent by weight of the second unit and 0 to 2 per cent of vinyl ester groups are made by reacting a copolymer of allyl glycidyl ether and a vinyl ester containing 3 to 30 per cent of the ether and 70-99 per cent of the ester with ammonia or a monoamine and hydrolysing residual ester groups to hydroxyl groups.  Suitable copolymeric starting materials, e.g. vinyl acetate, are described in Specification 722,258 and U.S.A. Specification 2,676,166.  Specified monoamines are ethyl, propyl, butyl, pentyl and benzylamines, dipropyl, dibutyl, and diamylamines, tri-n-octylamine 2-ethylpyridine, and dimethylaminodimethylacetamide.  The hydrolysis is preferably effected by heating the aftertreated copolymer with alcoholic alkali or an alkali metal alcoholate, e.g. sodium alcoholate in an alcohol such as methanol, ethanol, isopropylalcohol and a small quantity of water.  The treatment with the monoamine is effected with the copolymer in solution, e.g. dissolved in methyl ethyl ketone.  The hydrolysed copolymers are used as water-permeable colloid binding agents in filter and anti-halation layers in photographic films, textile sizing agents, and in silver halide dispersions or emulsions.  Specifications 535,341, 546,459, 551,659, 598,477, [all in Group XX], and 747,801, [Group III], also are referred to.
Patent GB-891474-A (GB)
Title: Improvements in and relating to hectographic paper
IPC: B41M5/025
Filed: 1958-08-27
Abstract: 891,474. Paper, hectographic; spirit duplicating. WAGNER VERWALTLTNGSGESELLSCHAFT, GUNTHER. Aug. 27, 1958 [Sept. 5, 1957], No. 27453/58. Class 96. Hectographic master-copy paper for spirit duplicating has a coating giving a colour reaction on copy paper with an acidic medium, the coating consisting of a non-acidic wax containing a cyclic di-substitution product of hydroxymethane, or an ether thereof, as the colour-reactant. An example specifies 40 parts of bis (4 - dimethyl - aminophenyl) hydroxymethane and 30-50 of carnauba wax, cetyl alcohol, or paraffin wax with some petroleum jelly, melted and spread or rolled on. The acid reactant may be in the copy paper or in the duplicating fluid.