baber/WOPTO huggingface dataset:
Patent GB-1042597-A (GB)
Title: Sheet materials
IPC: D21H21/28
Filed: 1963-01-29
Abstract: A sheet material carries minute, hollow, rupturable capsules that are insoluble but dispersible in water, have shells of a polymer formed by the condensation of urea or thiourea and an aldehyde and contain a water-immiscible liquid fill releasable into the sheet material upon rupture of the capsules.  The sheet material may be a cellulosic paper or a mica paper.  The liquid fill may be a colour-forming agent to give a pressure-sensitive record sheet, a shoe polish, a tacky adhesive, a perfume, an oil or wax to produce a locally transparentizable sheet, a plant fertilizer, a pesticide, a soil conditioning agent, a paint-remover, e.g. tetrachlorethylene, a perfluorocarbon water-repellent, or a fire-retardant.  The sheet material may be made by adding the capsules to an aqueous slurry of sheet-forming solids and then depositing the slurry, e.g. in a paper-making machine, to form a sheet therefrom which carries the capsules as a filler.  When the capsules contain colour-forming agents for pressure-sensitive record sheets, they may be coated with titanium dioxide to reduce background colour.  A tamperproof decorative paper may be made by using dye-filled capsules and then rupturing them.
Patent GB-970551-A (GB)
Title: Improvements in or relating to fluid control valves
Inventor: BEECH AUSTIN SIDNEY
IPC: F16K31/06
Filed: 1962-01-31
Abstract: 970,551. Valves. AUSTIN S. BEECH & CO. Ltd. Jan. 28, 1963 [Jan. 31, 1962], No. 3735/62. Heading F2V. A fluid control valve of the type in which a valve spool 23, Fig. 1, is fitted in a sleeve 13 which itself is a free fit in a valve body 11 has fluid conduits 17 passing through plugs 15, 16 sealed to bores in the sleeve by resilient rings 20. Further resilient rings 19 seal the plugs to bores in the body. The lower end of the sleeve 13 may be closed in and the upper end sealed to the operating spindle of the spool if the valve is to be used with corrosive fluids. The sleeve and spool may be of stainless steel and the body of plastic or aluminium. Energization of a solenoid opens the valve against a spring load 25. In Fig. 3, two solenoids 26, 27 each capable of moving the spool through half of its total displacement against centring springs 33 are provided and the sleeve 30 is connected to the body by three plugs 36, 37, 38 held in place by covers 45, 48. The passages within the plugs communicate with passages 42, 43, 44 in the body through cross-bores 41 while the ports at the ends of the sleeve may be connected with exhaust spaces 138, 139 through bores 150.
Patent GB-396309-A (GB)
Title: Improvements relating to the manufacture of cellulose esters
IPC: C08B3/02
Filed: 1933-02-07
Abstract: Cellulose is esterified in the presence of a catalyst comprising an aliphatic sulphonic acid which contains at least one further acidic group or atom derived from a inorganic acid, e.g. a nitro group, halogen atom, or another sulphonic acid group.  These catalysts do not enter into union with the cellulose and are completely removed by washing, giving stable primary or secondary esters.  The following examples are given:--(1) Cotton linters are pretreated in acetic acid and acetylated in a mixture of acetic anhydride, methylene chloride, and methane disulphonic acid.  (2) Cotton is pretreated as in (1) and esterified with acetic anhydride in the presence of benzene and methane disulphonic acid. (3) Cotton linters are pretreated and reacted with a mixture comprising acetic anhydride, isovalerianic anhydride, benzene, ligroin, and methane disulphonic acid, the mixture having been saturated with sulphur dioxide.  (4) Pretreated cotton linters are acetylated with a mixture consisting of acetic anhydride, benzene, methane disulphonic acid, and sodium perchlorate. (5) Wood pulp pretreated in acetic acid is caused to react with a mixture consisting of acetic anhydride, sulphur dioxide, benzene, and trichlormethane sulphonic acid.  (6) Pretreated cotton is acetylated with a mixture of acetic anhydride, benzene, sulphur dioxide, and chlormethane disulphonic acid.  (7) Cotton is pretreated and acetylated in a mixture containing acetic anhydride, benzene, sulphur dioxide, and nitromethane disulphonic acid.  (8) Bleached cotton linters are pretreated and acetylated with acetic anhydride in the presence of glacial acetic acid, monochloracetic acid, and nitromethane disulphonic acid.  (9) Pretreated cotton is esterified in a mixture comprising acetic anhydride, benzene, sulphur dioxide, and propane trisulphonic acid.  (10) Cotton is pretreated and added to a mixture of acetic anhydride, sulphur dioxide, benzene, and bromomethane disulphonic acid.  Methane trisulphonic acid is also specified as a suitable catalyst.
Patent GB-741611-A (GB)
Title: Manufacture of metalliferous azo-dyestuffs
IPC: C09B45/14
Filed: 1953-02-10
Abstract: <FORM:0741611/IV(c)/1> The invention comprises the treatment of dyes of the formula:-(in which R is an aromatic residue of the benzene series containing a hydroxy group in o-position to the azo linkage), on the one hand with an agent yielding cobalt or chromium under conditions such that the resulting cobaltiferous or chromiferous dye contains less than one atom of cobalt or chromium in complex union per molecule of monoazo dye, and on the other, with an alkali to split off the acyl group.  A mixture of dyestuffs may be used at least one of which is free from sulpho groups and has the above constitution, and the acyl groups may be only partially hydrolyzed off.  The invention also comprises cobalt or chromium compounds of dyes of the formula:- <FORM:0741611/IV(c)/2> which are free from sulpho groups and in which if R contains a chlorine atom it also contains a further substituent, and which contain less than one atom of cobalt or chromium per molecule of monazo dye. An alternative process comprises reacting a metal compound of a monazo dye containing one atom of cobalt or chromium in complex union per molecule of monoazo dye with a metal-free monoazo dye, and using as at least one of the monoazo dyes a dye of one of the two above formulae, simultaneously or subsequently splitting of the acyl group in the case of the first formula.  The products dye wool, silk, leather, nylon, and superpoly urethane.  In examples, (1) the following azo dyes are boiled in sodium chromosalicylate solution containing sufficient sodium hydroxide to hydrolyse the acyl group (a) 2-amino-1-oxybenzene-4-sulphomethyl amide --> 1-acetylamino - 7 - oxynaphthalene, (b) 2-amino-1-oxybenzene-4-sulphonamide --> 7-oxynaphthyl - 1 - carbonic acid methyl ester, (c) 6 (or 4)-nitro-4- (or 6)-acetylamino-2-amino-1-oxybenzene 1-n-butyrylamino-7-oxynaphthalene, (d) 2-amino-1-oxybenzene-4-sulphonamide --> 1-benzoylamino or carbethoxyamino-7-oxynaphthalene, (e) 2-amino-1-oxybenzene-4-methylsulphone 1-acetylamino-7-oxynaphthalene. Also in examples, (2) the dyestuff 2-amino-1-oxybenzene-5-sulphonamide --> 1-acetylamino-7-oxynaphthalene is metallized with cobalt sulphate and then hydrolysed with sodium hydroxide without isolation, (3) a mixture of the dyestuff 2-amino- 1- oxybenzene-4-sulphomethylamide --> 1-acetylamino-7-oxynaphthalene and 2-amino-1-oxybenzene-4-sulphonamide --> 1- (41-chlorophenyl)-3-methyl-5-pyrazolone is metallized with cobalt sulphate and the separated product is hydrolysed with sodium hydroxide.  A dyeing example on wool and nylon is given. The residue R may contain halogen, alkyl, nitro, acyl, acylamino, alkyl-, aryl-, or aralkylsulphone groups, and substituted or unsubstituted sulphonamide groups, including sulphopyrrolidides and sulphomorpholide.
Patent GB-1416421-A (GB)
Title: 1,4-dihydro-3 2h- isoquinolinone derivatives and preparation thereof
IPC: C07D217/24
Filed: 1974-01-28
Abstract: 1416421 1,4 - Dihydro - 1 - (4 - acylaminophenyl)-3(2H)isoquinolines EGYT GYOGYSZERVEGYESZETI GYAR 28 Jan 1974 [12 Feb 1973 13 Nov 1973] 03801/74 Heading C2C Novel compounds of the Formula I wherein R 1  and R 2  independently are hydrogen or C 1-3  alkyl, R is hydrogen or C 1-4  alkyl, R 3  is hydrogen, C 1-4  alkyl or benzyl or R and R 3  together with the adjacent nitrogen atom form a pyrrolidino, piperidino or morpholino group and m is zero (in which case R and R 3  may not both be hydrogen or 1 to 3 and pharmaceutically acceptable acid addition salts thereof may be prepared by reacting a compound of the Formula II with a compound A<SP>1</SP>-(CH 2 ) m COR 4  wherein when m is 1 to 3, R 4  is halogen or ethoxycarbonyloxy and A<SP>1</SP> is halogen or benzyloxycarbonylamino or when m is zero R 4  is ethoxy and A is halogen to form a compound IV which compound when A<SP>1</SP> is ethoxy or halogen is reacted with an amine RR 3 NH in which R and R<SP>3</SP> may not both be hydrogen or when A<SP>1</SP> is benzyloxycarbonylamino is subjected to catalytic hydrogenation followed optionally by salt formation. Pharmaceutical compositions of the compounds I with the usual excipients show anti-convulsive activity when administered orally or parenterally.
Patent GB-1096950-A (GB)
Title: Printing machine
IPC: B41F13/24
Filed: 1965-01-28
Abstract: 1,096,950. Printing-apparatus. A. WINDMÍLLER, and M. GENNERICH, [trading as WINDMÍLLER & HÍLSCHER]. Jan. 28, 1965 [Jan. 29, 1964], No. 3837/65. Heading B6C. An aniline-ink printing machine comprises a plate cylinder 1 mounted in stationary bearings, an impression roller 3 mounted in carriages 10, and a forme-inking roller 9 mounted in carriages 13, the carriages 10 and 13 being movable along guides 11, 12 and 14, 15 respectively to release the printing pressure by means of hydraulic piston and cylinder devices 31, 32. The carriages 10 and 13 may be displaced by screws 16 and 17 and may be clamped in an adjusted position by hydraulically-operated clamping devices 19 and 18 respectively. The screw devices 16, 17 are manually adjustable through worm-gearing and the hydraulic cylinders 32 are interconnected through a valve 39. A fountain 7 and a fountain roller 8 are also mounted on the carriages 13 and the carriages may be displaced sufficiently to allow the cylinder 1 to be replaced &c. A plurality of printing units may be provided.
Patent GB-632807-A (GB)
Title: Improvements in luminairs
IPC: F21V13/04
Filed: 1947-02-10
Abstract: 632,807. Luminairs. HOLOPHANE, Ltd. (Holophane Co., Inc.). Feb. 10, 1947, No. 3862. [Classes 75(ii) and 75(iv)] A light transmitting reflector for an elongated light source such as a fluorescent lamp extends upwardly from the level of the bottom of the light source to intercept low angled upwardly directed light and comprises vertical totally reflecting prisms and horizontally extending refracting prisms arranged to elevate both the transmitted and the reflected light. Two concave prismatic reflector plates 13 supported by a fixture 10 intercept upwardly directed light from fluorescent lamps 11 and a lens plate 12 having longitudinal prisms is disposed beneath the lamps to refract downwardly directed light toward the nadir. The reflector plates 13 are provided with vertical totally reflecting external prisms 16 and with upwardly thickening horizontal prisms 17 which may be either on the inside or outside surfaces of the reflectors. The prisms 17 refract the light so that a transmitted ray such as 18b is directed at a higher angle than the corresponding incident ray 18 and the reflecting prisms 16 return the major portion of the light into the luminair to be refracted across the vertical axis of the luminair by the lens plate 12. The sides of the reflecting prisms 16 may be outwardly concave meeting at 90 degrees as shown in Fig. 5 so that incident rays 32-34 are reflected as rays 32d-34d the divergence of which is the same as the convergence of the incident rays.
Patent GB-524756-A (GB)
Title: Medicinal preparations of magnesium hydroxide and precess of obtaining the same
IPC: A61K9/46
Filed: 1939-02-06
Abstract: 524,756. Effervescent medicinal salts. PHILLIPS CHEMICAL CO., C. H. Feb. 6, 1939, No. 3909. Convention date, March 17, 1938. [Class 81 (i)] A dry effervescent preparation comprises a mixture of a reversible magnesium hydroxide composition produced by evaporating a magnesium hydroxide suspension in the presence of sugar with an effervescent salt mixture in which the mixture contains from 5-50 per cent. of magnesium. hydroxide, 20-60 per cent. of effervescent salt and 30-70 per cent. of sugar. A suitable effervescent salt composition consists of sodium bicarbonate and citric and tartaric acids. Magnesium and sodium citrates, magnesium sulphate and soluble saccharin may also be present in the complete mixture. Specification 514,888 is referred to.
Patent GB-1477244-A (GB)
Title: Aircraft canopy
IPC: B64C1/14
Filed: 1975-01-30
Abstract: 1477244 Laminates SIERRACIN CORP 30 Jan 1975 4059/75 Heading B5N [Also in Division B7] A transparent aircraft canopy comprises a laminate of a relatively thick outer layer 15 of an infrangible material, such as a polycarbonate resin, and a relatively thin inner layer 16 of a frangible material, such as a polyacrylate resin. The inner layer of frangible material may be provided on a selected area (14), Fig. 2 (not shown), only of the canopy surface. The two layers may be fusion bonded together, or bonded together using an adhesive with low resistance to crack propagation. Alternatively, the frangible layer may be cast or sprayed on to the surface of the infrangible layer. In an alternative embodiment, Fig. 4 (not shown), an outer protective layer (19) of glass is provided, the glass being bonded to the outer surface of the infrangible layer by means of an interlayer (20) which is sufficiently soft and resilient to prevent any crack propagation from the glass layer (19) to the infrangible layer. Polyacrylate resins exemplified are methyl, ethyl, butyl and hexyl acrylates and methacrylates. Copolymers of acrylate and methacrylate monomers are also referred to.
Patent GB-556526-A (GB)
Title: Improvements in or relating to electric insulating materials, more particularly dielectrics for condensers
IPC: H01G4/22
Filed: 1942-03-28
Abstract: 556,526. Inoculation for electric condensers. STANDARD TELEPHONES & CABLES, Ltd. March 28, 1942, No. 4162. Convention date, Jan. 9, 1941. [Classes 96 and 140] Paper, e.g. linen, cotton, nr kraft, or textile fabric for use as a porous spacer in electric conrensers is stabilized against deterioration by incorporating lignin, or lignin-containing material such as hydrolyzed wood prepared by hydrolyzing part of the cellulose of raw wood pulp and removing the hydrolytic products, such material may be added to the pulp, or lignin may be dusted on to the paper, &c. Up to 50 per cent of lignin may be used, and the paper or textile may be impregnated with chlorinated diphenyl or chlorinated naphthalene &c.
Patent GB-1006458-A (GB)
Title: Bistable storage element comprising a tunnel diode, and the use thereof in a storagematrix
IPC: H03K3/315
Filed: 1963-02-01
Abstract: 1,006,458. Tunnel diode matrix stores. STANDARD TELEPHONES & CABLES Ltd. Feb. 1, 1963 [Feb. 3, 1962], No. 4261/63. Heading G4C. [Also in Division H3] A storage matrix is formed from circuit elements (see Division H3) comprising a tunnel diode TD fed from a constant current source and having in parallel an inductor L and an ordinary diode D or a similar non-linear resistor. The arrangement is such that the characteristics of the two diodes are as shown in Fig. 2b so that the circuit element has two stable operating points 1 and 2. Storage is effected by applying half-current pulses simultaneously to the required row and column lines X, Y and reading out is effected by applying a small current pulse to a row line to produce an output pulse in the common inductor L of those tunnel diodes which, because they are in the high voltage condition, permit the corresponding diode D to conduct. Clearing of the information is effected by interrupting the bias current Io.
Patent GB-869202-A (GB)
Title: Improvements in or relating to animal feeding stuff concentrates
IPC: A23K20/105
Filed: 1958-02-10
Abstract: Easily digested and highly nutritive feeding stuff concentrates for animals comprise a suspension or a solution of citric acid, and/or one or more of its acid salts, in water or an aqueous liquid, e.g. milk, whey, skimmed milk, in such quantity, e.g. 5 to 20%, preferably 10%, concentration by weight, that the pH is between 3 and 6, and preferably so that the daily amount received by the animals, per kilogram of line weight, is from 0,01 to 0,5 grams of the acid.  The concentrates suitably incorporate food materials such as soya and ground nuts, groats, linseed meal, fishmeal, oatmeal, bloodmeal, powdered whey, dried yeast, saccharin sweetening, together with minerals, e.g. salts of calcium, phosphorus, magnesium, and sodium, antibiotics, traces of elements, e.g. copper, manganese, zinc, cobalt, iron, fluorine, vitamins and, surface or submersion cultures of fungus growths, e.g. as obtained from the fermentation of citric, gluconic, fumaric, or lactic acid, in antibiotic preparation, or in the formation of citric acid when Aspergillus-niger pure cultures containing no spores are grown on molasses medium.  Such surface cultures are preferably added in amounts of 2 to 20% on a dry weight basis of the concentrate to give a daily dosage of 5g to 200g per animal, and may be partially or completely biologically decomposed, e.g. using propionic acid and/or vitanium B12 forming compounds, and may be used as such, or in a dried and finely ground state; they may also be sterilized.  Specification 9626/1915 is referred to.
Patent GB-633094-A (GB)
Title: Improvements in and relating to catalytic lighters
IPC: F23Q2/30
Filed: 1947-02-14
Abstract: 633,094. Catalytic igniters. CARDINAL PRODUCTS, Inc. Feb. 14, 1947, No. 4398. Convention date, Feb. 18, 1946. [Class 75(iii)] On raising the cover of a catalytic lighter a member housed in the casing allows a spring-controlled air valve to open to admit air to the reservoir. A casing 20 has a removable bottom 23 and a top 22 having a central opening 24 in which is screwed the holder 32 of the catalyst unit, the cup 25 of which has an opening in its base for the passage of air and fuel mixture to the perforated catalyst 28. The fuel valve head 57, located below the cup- 25, is normally held against its seat 56 by a spring 60 which encircles the valve stem 58. The legs 62 of an inverted U-shaped member 61 are in slidable engagement with the internal side walls of the casing 20. The upper surface of the cross member 63 of the member 61 is pressed downwardly by the enlarged end of a pin 64, which is slidable in the top 22 of the casing and has its upper end projecting above the top 22 when the lid is open so that when closing the latter it is engaged thereby; the lower surface of said cross member 63 in turn depresses the enlarged end of the stem 65 of the air admission valve 66, which is thus pressed to its seating 71 against the action of the spring 67; the seating is housed in a recess 69a in the bottom 23 of the casing. A projection 70 on the valve head 66 is slidable in an opening in the valve seat 71 and an opening 68 in the bottom of the recess 69a, the spring 68 being in communication with grooves in the bottom 23. The stem 65 carries the fuel reservoir 75 which is provided with chan-- nels 76 for the passage of air-fuel mixture. A spring-urged finger-piece 41 pivoted in a recess 40 at one end of the top 22 releases the spring-urged lid 47. In operation as the lid 47 is closed the pin 64 is forced' down, the member 61 being pushed down against the action of the spring 67 whereupon the air valve 66 is closed and the enlarged head 59 of the fuel valve stem is freed from the member 61 so that the spring 60 can close the fuel valve. When the lid is released by pressure on the finger piece 41, pressure on the pin 64 is removed whereupon the spring 67 opens the air valve 66 and pushes the top 63 of the member 61 into contact with the head 59 of the fuel valve stem to raise the latter and hence open the fuel valve 57. To fill the lighter the holder 32 is unscrewed and fuel is poured through the opening.
Patent GB-1405724-A (GB)
Title: Hydraulic control for hydraulically operated working devices
IPC: E02F9/22
Filed: 1973-01-29
Abstract: 1405724 Hydraulic control circuits G F WEYHAUSEN 29 Jan 1973 [27 Jan 1972] 4416/73 Heading F1P An hydraulic control circuit, Fig. 1, including at least two power outlets and two circuits each with a pump, 1, 2 and a valve block I, II comprising control units 3, 4, 5 and 6, 7, 8, 9 with six-way valves, has the main power outlets linked to valve block II and the oil delivered by the pump 1 passes through the valve block I when the valves are in a neutral position and flows, with the oil from pump 2 through the second valve block. Also, control unit 9 is connected to control unit 4, a power outlet is connected to each control unit, and control unit 9 is series connected whilst the rest are connected in parallel. This arrangement ensures that in an excavator, for example, the three main movements, i.e. hoisting, extending and retracting, and shovelling, can be operated in both directions with the oil flow from both pumps. In addition propulsion of the vehicle can be carried out whilst the other working movements are taking place.
Patent GB-534553-A (GB)
Title: Improvements in automatic circuit interrupters
IPC: H01H29/30
Filed: 1940-03-09
Abstract: 534,553. Mercury switches. GENERAL MOTORS CORPORATION. March 9, 1940, No. 4432. Convention date, March 17, 1939. [Class 38 (v)] To obtain slower operating frequencies in mercury automatic circuit interrupters, the envelope 2 carrying the spaced electrodes 4, 10, bridged by a body of mercury 16 is formed with a part 14 of restricted area adjacent one of the electrodes to hinder the return of the mercury displaced by volatilization to its initial position. In a modification, the constricted position is of cylindrical, instead of the tapered, form shown. The electrode 10 is of carbon, and the tip 12 projects into the envelope, the mercury contacting only with the end owing to the effect of surface tension. The tip may be coated'or capped with a thin layer of a metal, such as molybdenum, which has a high melting point and does not amalgamate with mercury.
Patent GB-1535557-A (GB)
Title: Vehicles riding on air cushions
IPC: B60V1/16
Filed: 1976-02-05
Abstract: 1535557 Air cushion vehicles BERTIN & CIE and SOC D'ETUDES ET DE DEVELOPPMENT DES AEROGLISSEURS MARINS TERRESTRES ET AMPHIBIES SEDAM 5 Feb 1976 [18 Feb 1975] 4497/76 Heading B7K An air-cushion vehicle has a central cushion (100), Fig. 1 (not shown), and a peripheral skirt assembly which comprises a ring of contiguous cells C, each cell comprising a closed cylindrical or frusto-conical skirt F and an outer lobe L. The skirt F is formed of an outer part Fe, and an inner part Fi which may be an integral part of the lobe. The two skirt parts Fe and Fi are connected together and to the lobe over triangular tangential areas abc. The lower edge of each skirt F preferably rises towards the vehicle - centre to facilitate the supply of air from the skirts to the central cushion, the skirts F and lobes L being supplied with air from a compartmented chamber (D), Fig. 3 (not shown). The central cushion may also be supplied directly from the chamber.