baber/WOPTO huggingface dataset:
Patent GB-1441307-A (GB)
Title: Bubble generating devices
IPC: G01M9/04
Filed: 1973-08-01
Abstract: 1441307 Wind tunnels NATIONAL RESEARCH DEVELOPMENT CORP 30 July 1974 [1 Aug 1973] 36491/73 Heading B7G A flow indicating device in a wind tunnel comprises a linear support portion 14 mounted in the wall 13 of the tunnel and extended by a portion 15 comprising two coaxial tubes 16, 18 of swan-neck shape and arranged so as not to introduce significant turbulence in the downstream flow, the mouth or exit of the outer tube lying on the extended axis AA of portion 14, with the outlet of the inner tube terminating a short distance inside the outer one. The portion 14 has an enlarged tubular portion 24 mounted on a connection piece 31 to which it is sealed by 0-rings 44, 45 and secured to a connector portion 68, piece 31 and portion 68 being bored for the passage of a tubular connection 30; 32 to the inner tube 16. A branch pipe 40 connects portion 24 to a pump 50 which draws from a tank 52 of bubble solution and connection 30 is fed with compressed air from a supply 48 through an adjustable needle valve 54. Other profiles are illustrated for the portion 15 and the device may be mounted with axis AA vertical instead of horizontal. A boom arrangement is described to enable the device to be used in a wind tunnel of large cross-section. The inner series of tubes could be omitted.
Patent GB-1142399-A (GB)
Title: Method of dyeing naturally black fur skins
Inventor: GINZEL ANTON
IPC: D06P3/30
Filed: 1967-08-09
Abstract: 1,142,399. Dyeing naturally black fur skins. FRANKISCHE PELZINDUSTRIE MARKLE & CO. 9 Aug., 1967. No. 36510/67. Heading D1B. Naturally black fur skins, e.g. Persian lamb skins, are subjected to pretreatment with colloidal sulphur without prior bleaching and then subsequently surface dyed with vat dyestuff. Surface dyeing means that the dyestuff is contained only in the outermost part of the cortex.
Patent GB-999578-A (GB)
Title: Foamed articles and production thereof
IPC: C08J9/30
Filed: 1963-09-17
Abstract: Foamed polyimide articles may be produced by introducing bubbles into a solution of a polyamide acid of the formula <FORM:0999578/C3/1> wherein R is a tetravalent radical containing at least 2 carbon atoms no more than two carbonyl groups being attached to any one carbon atom and R1 is a divalent radical containing at least 2 carbon atoms, there being no more than 1 amino group attached to any one carbon atom, the polyamide acid having an inherent viscosity of at least 0.1, shaping the composition into a shaped cellular article and effecting ring closure of the polyamide acid to form the polyimide. The polyamide acid may be prepared by reacting at least one diamine with at least one tetracarboxylic acid dianhydride in the presence of a solvent. The preferred organic diamines are those of the general formula H2N-R1-NH2 wherein the R1 groups contain at least six carbon atoms characterized by benzenoid unsaturation. Suitable dianhydrides are the aromatic tetracarboxylic acid anhydrides, particularly those wherein the four carbonyl of the dianhydride are each attached to separate carbon atoms in a benzene ring and wherein the carbon atoms of each pair of carbonyl groups is directly attached to adjacent carbon atoms in the benzene ring, to provide a five membered ring. The preferred solvent is N,N-dimethyl-acetamide.  Suitable blowing agents are air, nitrogen, compounds which liberate nitrogen on heating, e.g. p,p1-oxybis-(benzene sulfonyl hydrazide), fluoro and fluorochloro derivatives of hydrocarbons and carbon dioxide from sodium bicarbonate or dry ice.  Conversion of the polyamide acid to polyimide may proceed by heating above 50 DEG  C. or by treating the acid with a lower fatty acid anhydride or an aromatic monobasic acid anhydride, including ketene, and dehydrating agents alone or in combination with a tertiary amine.  A combination of these two methods may also be used.  Specifications 928,717, 982,914 and 999,579 are referred to.ALSO:Articles may be coated with a polyimide foam by applying to the article a foamed gel of a polyamide-acid containing an acid anhydride and a tertiary amine as dehydrating agent and catalyst respectively and heating the article to convert the polyamide-acid to polyimide.  The examples describe a polyamide-acid prepared from pyromellitic dianhydride and 4,4-diaminodiphenyl ether and converted to polyimide by heating with acetic anhydride and pyridine.  Suitable materials on to which the foamed gel of polyamide-acid may be coated are "Kraft" paper ("Kraft" is a p  Registered Trade Mark), aluminium and copper foil, glass and asbestos cloth, copper, aluminium and stainless steel wires and panels of wood or fibrous polyethylene terephthalate. Specification 999,579 is referred to.
Patent GB-814461-A (GB)
Title: Method of transmitting rotational movement to heavy bodies at low speed
IPC: B03B5/56
Filed: 1955-12-20
Abstract: 814,461. Hydraulic transmission of power. WAWERKA, F. Dec. 20, 1955 [Dec. 27, 1954], No. 36532/55. Class 69 (2). Means for rotating a heavy body at low speed comprises motors 4, 5 driving a toothed ring 1 and connected in parallel to a line 6 to which liquid is supplied by parallel connected pumps 9 1 - 9 12  which are driven individually by electric motors. The electric motors are switched on and off to vary the supply of liquid as desired. All the pumps save one may have a constant and equal output. The other pump may have a variable displacement, or have its output regulated by a valve, or have a constant output differing from that of the other pumps.
Patent GB-431267-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B17/00
Filed: 1933-12-29
Abstract: 431,267. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.-(Assignees of Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm) Dec. 29, 1933, No. 36591. Convention date, Jan. 5. Drawings to Specification. [Class 29] Absorption systems.-In an intermittent system having a storage vessel for cooled absorption solution spaced from a small generator element, and a continuously cooled point of absorption, an equalizing vessel is provided to receive from or give up to the absorption side of the system an amount of liquor corresponding with the amount of refrigerant in the evaporator, the equalizing vessel being maintained at a lower temperature than the generator. The invention is described with reference to the system of Specification 431,266. Specifications 431,268 and 431,316 also are referred to.
Patent GB-1356244-A (GB)
Title: Substituted benzimidazole parasiticides
IPC: C07D235/10
Filed: 1970-07-29
Abstract: 1356244 Antiparasitic compositions FISONS Ltd 14 July 1971 [29 July 1970 16 March 1971] 36673/70 and 7044/71 Heading A5B [Also in Division C2] Pharmaceutical preparations showing parasiticidal activity, especially anthelmintic activity, contain (I) and/or a salt thereof as active ingredient (where R and R<SP>1</SP> may be the same or different, each represent hydrogen, aryl, substituted aryl, alkyl of up to 12 carbon atoms, substituted alkyl whose alkyl group contains up to 12 carbon atoms, cycloalkyl of 3-8 carbon atoms, alkenyl of up to 12 carbon atoms or alkylnyl of up to 12 carbon atoms, or R and R<SP>1</SP>, together with the nitrogen atom to which they are attached, form a heterocyclic radical; R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP>, which may be the same or different, each represent hydrogen, halogen, nitro, cyano, alkyl of up to 12 carbon atoms, substituted alkyl whose alkyl group contains up to 12 carbon atoms, alkoxy of up to 12 carbon atoms, aryloxy, alkylthio of up to 12 carbon atoms or an oxygenated derivative thereof, arylthio or an oxygenated derivative thereof or a further SO 2 NRR<SP>1</SP> group; and R<SP>5</SP> represents hydrogen, alkyl of up to 12 carbon atoms or the group C(:X)YR<SP>6</SP> in which X and Y, which may be the same or different, each represent oxygen or sulphur and R<SP>6</SP> represents alkyl of up to 12 carbon atoms, aryl, substituted alkyl whose alkyl group contains up to 12 carbon atoms, substituted aryl, alkenyl of up to 12 carbon atoms, alkenyl of up to 12 carbon atoms or cycloalkyl of 3-8 carbon atoms). Administration may be orally, parenterally or topically. Suitable salts of (I) are ammonium, metal and amine salts, especially N-methylglucamine salts.
Patent GB-1191289-A (GB)
Title: Method of Emulsifying Highly Viscous Organopolysiloxane Oils in Water
IPC: C08J3/03
Filed: 1967-08-10
Abstract: 1,191,289. Preparation of emulsions of organopolysiloxane oils. SHIN-ETSU CHEMICAL INDUSTRY CO. Ltd. 10 Aug., 1967 [19 Aug., 1966; 22 Feb., 1967], No. 36722/67. Heading C3T. A concentrate used for preparing emulsions of organo-polysiloxane oils having viscosity from 5000 to 1,000,000 cs. comprises the oil, an emulsifying agent and water, the amount of water being 10 to 20 wt. per cent based on the oil. The concentrate is prepared by mixing the oil, emulsifying agent, and water and homogenizing the mixture using a roll-mill mixer having at least two rollers, preferably spaced at less than 0À1 mm. The concentrate may be diluted with water. The emulsifying agent may be added in proportion 1-10% by wt. of the oil. Examples refer to emulsification of a methyl silicone oil chain-stopped with trimethylsilyl groups, viscosity 50,000 cs. at 25‹ C., and of a dimethyl polysiloxane oil, chain-stopped with silanol, viscosity 500,000 cs. at 25‹ C., using polyethyleneoxy type emulsifying agents.
Patent GB-394887-A (GB)
Title: Process for the manufacture of the tetrasulphuric acid ester of leuco-1.2.2.1-anthraquinone azine
IPC: C09B9/02
Filed: 1932-12-29
Abstract: Tetrasulphuric acid ester of leuco-1.2.2<1>.1<1>-anthraquinoneazine is prepared by reacting a compound of the formula:-- <FORM:0394887/IV/1> or a salt thereof with lead dioxide or a ferricyanide in a non-acid aqueous medium.  Care must be taken that sufficient alkali is present to avoid acid conditions developing during the reaction; suitable alkali conditions are obtained by means of the addition of hydroxides or basically reacting salts of ammonium or alkali, or alkaline-earth metals, such as the alkali metal or ammonium hydroxides, carbonates, bicarbonates, acetates, phosphates. Preferred reacting temperatures lie between 50-95 DEG  C., the use of ferricyanide requiring higher temperatures than lead dioxide.  An excess of oxidizing agent is advantageous.  In examples 2-sulphamic acid-anthrahydroquinone-9.10-disulphuric acid ester sodium salt is oxidized in presence of sodium carbonate with lead dioxide at 60-65 DEG ; the sodium carbonate may be omitted or replaced by alkali, alkaline-earth or ammonium hydroxides, salts of boric acid, oxalates or acetates, and the calcium salt of the ester may be used as starting material.  A further example illustrates the oxidation of the potassium salt of the ester by potassium ferricyanide.  The product may be used for impregnating fibres from a dye-bath or used in a printing-paste, acid-oxidation yielding the dihydroazine dye. Specifications 272,924 and 333,146, [both in Class 2 (iii), Dyes &c.], are referred to.
Patent GB-1027258-A (GB)
Title: Movable tables for motor vehicles
Inventor: BETTS ARTHUR JOHN
IPC: B60N3/00
Filed: 1964-09-09
Abstract: 1,027,258. Furniture conversions. FORD MOTOR CO. Ltd. Sept. 9, 1964, No. 36831/64. Heading A4H. In a motor vehicle with individual front seats and a passenger seat located behind them, an arm rest member 7 mounted between them on a hinge part 31 can be serving to contact a raised rear part and form a table for rear seat passengers. The arm rest can be rocked upwardly and the handle 25 of a catch formed by a spring- loaded rod 28 is then releasable by a rearseat passenger to allow further movement into the table position.
Patent GB-822808-A (GB)
Title: Humidity sensitive element
IPC: G01N27/12
Filed: 1955-12-23
Abstract: 822,808. Measuring humidity. FARRER, J. O. (Phys-Chemical Research Corporation). Dec. 23, 1955, No. 37001/55. Drawings to Specification. Class 40 (1). A humidity sensitive element consists of a solid electrically insulating material, preferably a cross-linked polymer having fixed polar groups bonded to the polymer in a thin layer over part or whole of the surface to form an integral material and ions of an opposite charge to that of the polar group and associated with the latter by electrostatic forces, which ions become mobile in the presence of water. The polymer may be cross-linked phenol formaldehyde, resorcinol formaldehyde, phenol furfural, cresol formaldehyde, xylenoformaldehyde, divinyl benzenepolystyrene co-polymer &c. In an example, a thermoset copolymer of vinyl benzene and ethylvinylbenzene in which from 3 to 6% by weight of divinylbenzene is used is employed. The ion-exchange surface of the element is formed by dipping a rod of the desired dimensions in concentrated sulphuric acid at 100‹ C., using 5% dry weight silver sulphide as a catalyst and maintaining the sulphoration for from 1 to 60 minutes. Sulphur trioxide or chlorsulphoric acid may be used, for sulphoration. As an alternative, the polar groups may be carboxylic, or phosphoric groups. The electrodes which may be in the form of rings or interweaving spirals may be of silver, gold, palladium or platinum and may be applied as a paint or by evaporation.
Patent GB-1278633-A (GB)
Title: Colour television picture tube
IPC: H01J29/07
Filed: 1969-07-23
Abstract: 1278633 Colour television tubes PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 23 July 1969 [26 July 1968 27 Feb 1969] 37079/69 Heading H1D A colour TV display c.r.t. comprises a substantially rectangular colour selection electrode (e.g. shadow mask 15) supported by suspension members 11 each leg 12 of which may be slotted and curves first through angles between but not including 90 to 180 degrees, and then curves in an outward direction and bears at at least three positions 13, 13<SP>1</SP>, 13<SP>11</SP> against sides (5) and back (2<SP>1</SP>) of recess (3) (Fig. 1, not shown) in rim (2) of the rectangular window. Each member is of resilient strip secured to the mask by resilient suspension strip 7 and bears against locating surface such as (6) for preventing displacement toward the screen. The locating surface may be the upper side of the thickened recess portion when side projections (33) (Fig. 10, not shown) are provided. The opposite walls of each recess may make an angle with the end surface of between 92 and 97 degrees. Supporting strip 8 may be welded to flange 16 with bent edge 10 welded to strip 7, which latter is at right angles to the electron paths in the tube corners, thermal expansion resulting in movement towards the screen. Strip 7 may not be an integral part of strip 11 (Fig. 5, not shown) and strips 11 and (18) may be different materials to increase rigidity and/or mask displacement on heating or to increase strip-glass friction as when the strip oxidizes on welding the cone and tube portions. Lugs (14) improve contact and notches (19) may be provided in the curved sides of the suspension member. Strips (18) may be entirely or partially bimetal and like strips (7) may be tapered or V-shaped (21) (Fig. 7, not shown). The end wall of the recess may be discontinuous (Fig. 8, not shown) and without lower locating ledges (Fig. 9, not shown). The corners (31) or whole bottom of strip (7) may be bent to prevent scratching the tube (Fig. 10, not shown), the part (29) reducing tilting of the suspension member (Fig. 11, not shown). The mask may include a heavy supporting frame (34) (Fig. 12, not shown).
Patent GB-891982-A (GB)
Title: Improvements in or relating to beacons
IPC: B64F1/20
Filed: 1960-10-28
Abstract: 891,982. Marine signalling - apparatus. SVENSKA AKTIEBOLAGET GASACCUMULATOR. Oct. 28, 1960 [Nov. 5, 1959], No. 37134/60. Class 118. [Also in Group XI] In a navigational beacon emitting within a so-called ranging sector of predetermined angular extent a sharply defined beam, the beam is divided into a plurality of narrow light channels arranged to have a mutual angular displacement so as to spread the light intensity over the ranging sector to give high intensity adjacent the boundaries of the ranging sector. As shown in Fig. 1, the source 1, of substantially parallel light, is divided into three channels 6, 7, 8 by screens 2 to 5, of which 2 and 5 define the sector angle, while 3 and 4 prevent the emission of light through non-aligned apertures of 2 and 5. If it is arranged that the angular displacement between channels be half the angle of divergence v‹ of each channel, the light distribution in channels 6, 7, 8 will be as shown at 9, 10, 11 (Fig. 4), and for a normal viewing distance the light distribution within the sector will be as indicated in Fig. 5. A second embodiment in which the ranging sector is flanked by lateral sectors of different coloured light is shown in Fig. 6. The sector boundaries are defined by screens 21, 22, while screens 19, 20 split the ranging sector into three channels, and screens such as 26, 27 split each of the lateral sectors into eight channels, 17 and 18 being colour filters. The light distribution is as indicated in Fig. 9; the screens 26 being parallel to one another, and the screens 27 diverging with respect to one another.
Patent GB-791392-A (GB)
Title: Dyeing cellulose acetate textile materials
IPC: D06P3/48
Filed: 1955-01-25
Abstract: Textile materials of cellulose acetate having an acetyl value, calculated as combined acetic acid of at least 59 per cent are dyed by applying thereto from an aqueous medium a cellulose acetate disperse dyestuff, particularly a dyestuff of the "high-temperature, slow-dyeing" type, in the presence of an assistant which is a solvent for the dyestuff and is substantive to the cellulose acetate, the use of the assistant greatly increasing the rate of dyeing.  The assistant may be added to the aqueous dyebath or the textiles may be pretreated with the assistant, e.g. as by padding with an aqueous dispersion or emulsion of the assistant.  Preferred assistants, which may be employed in admixture, are terpene alcohols, e.g. pine oil, and their ethers, such esters as tripropyl-, tributyl-, triamyl-, trihexyl- and dioctyl acid phosphate, dimethyl-, diethyl-, dipropyl- and diallyl-phthalate, triallyl citrate, methyl salicylate, and methyl benzoate and N:N-dihydroxyethyl amides of higher fatty acids such as capric and lauric acids, less suitable assistants being cumene, biphenyl, naphthalene, tetrahydronaphthalene, trichlorobenzene, cyclohexyl phenol, o-phenylphenol, salicylic acid, benzoic acid, the monophenyl-, monodichlorophenyl and mono-p-chlorophenyl-ethers of ethylene glycol, the monophenyl ether of diethylene glycol, acetophenone, dibutyl phthalate, 2-methyl-5-ethyl pyridine, decanol, trioctyl phosphates, dipropyl-, dibutyl-, diamyl-, didecyl- and dilauryl-acid phosphates, dibutyl ethanolamine, diisobutyl carbinol and the products known as "Maypon K," "Alkamine W-30," "CRL40229G2125" and "Kar-In."  Numerous suitable "high - temperature, slow - dyeing" disperse dyestuffs and some "low or medium temperature" disperse dyestuffs are specified. To reduce the tendency towards acid-fading, the usual nitrogenous inhibitors employed for the treatment of acetone-soluble cellulose acetate, several of which are specified, may be applied to the textile before, during or after dyeing, as also may antioxidants such as tertiary butyl hydroquinone and alkylated phenols.  The process is also applicable to textiles containing a mixture of highly acetylated cellulose fibres with fibres of wool, cotton, rayon, glass and asbestos.  Examples are given.
Patent GB-368824-A (GB)
Title: Improvements in or relating to the manufacture of anthraquinone compounds
Filed: 1930-12-10
Abstract: The amino groups and alkylamino groups in di- and polyaminoanthraquinones unsubstituted or substituted in the nucleus and containing at least two amino groups, or one amino group and one hydroxyl group in p-position to each other or derivatives containing one alkyl group attached to the nitrogen, are replaced by oxygen or hydroxyl step by step, by converting the said compounds by oxidation in concentrated sulphuric acid to the quinonoid derivatives, causing the latter to react with aqueous sulphuric acid, and if desired, reducing the quinonoid compounds produced.  Alternatively, the oxidation may be carried out directly in the more dilute acid.  The cause of this reaction in the case of a 1 : 4-diaminoanthraquinone is through the 1 : 4-diamino compound to the 1-imino-4-keto body and by reduction to the 1-amino-4-hydroxy body, the concentration of acid and temperatures being so chosen that only one amino group is replaced.  According to a modification, a small proportion --less than 5 per cent--of the diamino compound is initially oxidized to diimino body, and then by further treatment with aqueous sulphuric acid, the reaction proceeds catalytically to the desired end.  The second process may also proceed in combination with that of Specification 368,829 in such a manner that by starting with the hydro-1 : 4-diaminoanthraquinone a small quantity of the 1 : 4-diaminoanthraquinone first formed is oxidized with a slight excess of pyrolusite or other oxidizing agent and the remainder of the reaction proceeds as above, catalytically.  According to examples, 1 : 4-diamino-, 1 : 4-diamino-2 : 3-dichloro-, and 1 : 4 : 5 : 8-tetraamino-, anthraquinones, and p-diaminoanthrarufin, are oxidized with manganese dioxide and sulphuric acid, followed by hydrolysis in dilute acid, and followed by eduction to the corresponding 1-amino-4-hydroxy compounds; 1 : 4 - diamino-5-nitroanthraquinone, p-diaminochrysazin and sulphonic acids of amino-hydroxyanthraquinones and other oxidizing agents are specified, and in the case of a tetra-aminoanthraquinone, the final product may be a 1-amino-4 : 5 : 8-trihydroxy derivative. Examples of the use of the same compound by the method of partial oxidation, followed by catalytic change, and of the use of the hydro-1 : 4-diaminoanthraquinone for the same method are also given.  Specification 15355/08, [Class 2, Acids and salts, Organic &c.], also is referred to.
Patent GB-773945-A (GB)
Title: Improvements in thermally protected electric motors of the dual voltage type
IPC: H02H7/085
Filed: 1955-12-29
Abstract: 773,945. Control of A.C. motors. GENERAL ELECTRICCO. Dec. 29, 1955 (Dec. 29, 1954], No. 37264/55. Class 38(3) For low-voltage operation of an induction motor, its running windings 3, 4, are connected in parallel with each other and in series with the heating element 16 and high-resistance bimetallic element 13 of a protective device for the motor. When the motor is connected to a supply of high-voltage, the windings 3, 4, are connected in series with each other and in series with the elements 13, 15, the heater 15 having a higher ohmic value than the heater 16. In this manner, the protective device responds to open the motor circuit at substantially the same temperature of the motor-windings despite the change of supply voltage. A starting winding 9, controlled by centrifugal switch 6, is connectable in parallel with the winding 3.