baber/WOPTO huggingface dataset:
Patent GB-1507845-A (GB)
Title: Water-insoluble azo dyestuffs derived from alkyl anthranilate coupling components
IPC: C09B43/24
Filed: 1975-07-07
Abstract: 1507845 N-substituted alkyl anthranilates PRODUITS CHIMIQUES UGINE KUHLMANN 7 July 1975 [8 July 1974] 28496/75 Heading C2C [Also in Division C4] Methyl N - (2 - carbethoxyethyl) - anthranilate is prepared from methyl anthranilate and ethyl acrylate. Ethyl N-(2-carbethoxyethyl)- anthranilate is prepared similarly. Ethyl N-(2- cyanoethyl)anthranilate is prepared from ethyl anthranilate and acrylonitrile. Ethyl N-(2- hydroxyethyl)anthranilate is prepared from ethyl anthranilate and glycol chlorhydrin. Methyl N - (2 - acetoxymethyl)anthranilate is prepared from methyl N-(2-hydroxyethyl)- anthranilate and acetic anhydride in glacial acetic acid.
Patent GB-616937-A (GB)
Title: Improvements in or relating to joint assemblies such as ball and socket joints
IPC: F16C11/08
Filed: 1946-09-24
Abstract: 616,937. Pivotal joints. THOMPSON PRODUCTS, Inc. Sept. 24, 1946. No. 28516. Convention date, Oct. 22, 1945. [Class 65 (ii)] A pivotal joint comprises a housing 11, a joint member in the form of a ball-ended stud 22 in the housing, a resiliently backed bearing member 27 tightly fitted in the housing and. engaging a portion of the joint member, and a rigid bearing member 29 loosely fitted in the housing and engaging another portion of the joint member. The rigid bearing member is shiftable to engage the housing for limiting the amount of deformation of the resilient backing, the latter being comprised by a rubber ring 26 press-fitted into the housing. A spring 34, supported by a closure plate 19, urges the joint and bearing members into bearing engagement.
Patent GB-989801-A (GB)
Title: Process for the production of anhydrous formaldehyde
Inventor: POBLOTH HELMUT
IPC: C07C45/82
Filed: 1961-08-08
Abstract: Substantially anhydrous, monomeric formaldehyde is produced by reacting an aqueous formaldehyde solution with an alcohol which contains at least three hydroxyl groups in the molecule and which has been obtained by condensation of an aliphatic aldehyde with formaldehyde, dehydrating the resulting hemiacetal-water mixture by distillation, and subsequently thermally decomposing the hemiacetal into formaldehyde gas and said alcohol, and recovering the formaldehyde thus obtained. Alcohols specified for forming the hemiacetal are 1,1,1 - trimethylol - ethane, 1,1,1 - trimethylol - propane, 1,1,1 - trimethylol - butane, 1,1,1 - trimethylol - 2 - hydroxypropane and pentaerythritol.  The dehydration of the hemiacetal-water mixture is preferably carried out in a vacuum of 15 to 25 mm.  Hg and may be effected discontinuously or continuously. The thermal decomposition of the hemiacetate may also be discontinuous or continuous and with the hemiacetal of 1,1,1-trimethylol-propane, for example, may be effected at a temperature of 140 DEG  to 180 DEG  C.
Patent GB-1401051-A (GB)
Title: Cutting device for looms
IPC: D03D47/00
Filed: 1972-06-19
Abstract: 1401051 Weft cutting; shuttleless looms SOMET SOC MECCANICA TESSILE SpA 19 June 1972 [21 June 1971] 28626/72 Heading D1E A rapier loom wherein gripper rapiers transfer the weft from one to the other in the shed and having a weft selector 2 and presenter 3 has a cutter 1 comprising a blade 7 pivoted by a grooved cam 9 to engage a selected weft prior to insertion and a cooperating blade 17 which is mounted in the holder of the blade 7 and is moved by a separate face cam 21 to cut the weft engaged by the blade 7. The blade 17 (Figure 3) may be pivoted and spring urged against the blade 7 or the blades (Figures 4 and 5, not shown) may be arranged parallel to the rapier.
Patent GB-483707-A (GB)
Title: Improvements in processes for rendering wool material unshrinkable
IPC: D06M11/52
Filed: 1936-10-22
Abstract: Wool in fibre yarn, or fabric form is rendered unshrinkable and its tendency to felt is reduced by treating with chlorine and sulphur dioxide, together or separately in either order.  In examples, knitted and scoured wool fabric is exposed to a mixture of equal volumes of chlorine and sulphur dioxide, afterwards dry air is passed through to remove occluded gases, and the material is finally washed and dried; scoured wool fabric is exposed to sulphur dioxide in a closed chamber, and then to a current of chlorine; alternatively, wool yarn may be treated first with chlorine and then with sulphur dioxide; loose wool is first subjected to a vacuum and then immediately afterwards with both chlorine and sulphur dioxide. Specifications 4677/09, [Class 142 (iv)], and 464,503 are referred to.
Patent GB-946390-A (GB)
Title: Attrition mill apparatus
IPC: D21D1/30
Filed: 1962-07-26
Abstract: 946,390. Disc mills. SPROUT, WALDRON & CO. Inc. July 26, 1962 [Jan. 15, 1962], No. 28730/62. Heading B2A. An attrition mill comprises a rotatable disc 210 having secured thereto attrition plates 260, 261 co-operable with attrition plates 262, 263 secured to non-rotatable discs 200, 177 respectively, the disc 210 being mounted on a horizontal shaft 211 mounted in bearings 215, 216 so as to be freely slidable axially, fluid-pressure piston-and-cylinder means 250, 251 being associated with the disc 200 so as to displace and adjust the axial position of the disc relative to the disc 177 and consequently the relative axial positioning of the discs 200, 177 and the disc 210 substantially independently of the axial floating displacement of the disc 210. Material to be refined is introduced through inlet pipes 235, 236 and the refined material is discharged at 240. The refining discs are enclosed in a casing composed of two parts 176, 185, the part 185 being axially displaceable with respect to the part 176 to give access to the discs.
Patent GB-364146-A (GB)
Title: Improvements in and relating to electrical discharge tubes for use in the recording of sound
IPC: G11B7/00
Filed: 1930-09-25
Abstract: 364,146. Recording sound photographically. FIDELITY FILMS, Ltd., Worton Hall Studios, Isleworth, Middlesex, and CROWTHER, F. K., 19, Orchard Avenue, New Malden, Surrey. Sept. 25, 1930, No. 28731. [Class 40 (ii)] Sound is recorded photographically by the fluctuating length of glow of the cathode of a discharge device due to its modulation by the sound. Figs. 1 and 2 show one form of discharge device in which the cathode comprises a strip of metal C clamped between overhanging plates G of quartz or like insulation by spring clips H embracing a glass bar K sealed in the container L containing a gas such as nitrogen at the required pressure. The anode A is sealed in a glass tube N sealed on the container, and is arranged about the middle of the length of the cathode when it is desired to record the glow extending along the cathode on both sides of the anode. A modified discharge device providing several points of discharge for alternate use is shown in Fig. 4. The cathode C comprises an annular octagonal strip clamped between overhanging insulating strips G by a spring spider H and arranged between endplates M spaced apart by a transparent casing L abutting against yielding material. Anodes A are arranged opposite the middle of each side of the octagon and are surrounded by insulating shields so that discharge is confined to the ends. Alternatively, a single anode may be employed. The overhanging plates G limit the width of the glow. In recording, the glow may be directed through a fixed slit in a plate, or the slit plate may be dispensed with if the glow device is of suitable dimensions.
Patent GB-706587-A (GB)
Title: Improvements in and relating to railroad ties or sleepers
IPC: E01B3/34
Filed: 1951-12-10
Abstract: 706,587. Concrete railway sleepers. SCHULZ, E., and FINSTERWALDER, U. Dec. 10, 1951 [Dec. 11, 1950], No. 28830/51. Class 104 (2) A sleeper has a precast concrete central member 4 jointed to two rail-bearing members 1, 2 to form a rigid non-articulated unit and is pre-stressed by a steel rod 5 extending longitudinally through the members. The ends of the member 4 may be inserted into recesses in' members 1, 2 and then joined thereto by concrete or placed in moulds and the members 1, 2 cast thereon. The members 1, 2 may be reinforced with iron. The member 4 may have a circular, elliptic or polygonal shaped cross-section and the hole for the steel rod 5 may be lined with thin sheet metal. The recesses 13 may be filled with concrete after pre-stressing the sleeper.
Patent GB-323281-A (GB)
Title: Improvements in and relating to forms or shuttering for the casting in situ of concrete structures, adapted to be faced with plastering, stone and like plastic dressings
IPC: E04G9/10
Filed: 1928-10-08
Abstract: 323,281. West, W. Oct. 8, 1928. Moulding concrete surfaces in situ.-Undercut recesses are formed in cast concrete surfaces by the use of a ribbed flexible lining to the shutters. The lining may be of rubber 1 formed with dovetail-shaped projections 3. After casting, the shuttering Y is first removed and the lining is peeled off. The projections on the lining may be in the form of oppositely disposed teeth 5, 6, Fig. 4. The recesses in the surface form keyways for the plaster or may be used to receive anchor tiemembers attached to stone or like dressing for the walls.
Patent GB-893904-A (GB)
Title: Composite products of rubber and textiles
Inventor: IMMERGUT EDMUND HEINZ
IPC: C08J5/06
Filed: 1957-09-14
Abstract: Composite articles are obtained by irradiating fibres in the presence of a monomer containing a vinyl or vinylidene group whereby the monomer is polymerized, and incorporating the polymer modified fibres in a rubber composition and vulcanizing.  The rubber may be natural or synthetic, e.g. butadiene copolymerized with either styrene, acrylonitrile or methyl iso propenyl ketone; polyolefines; polybutadienes; neoprene or polyisoprene.  Specified monomers for polymerizing on to the fibres are butadiene, isoprene, chloroprene, styrene, vinyl- and methyl vinyl-pyridine, acrylic acid methacrylic acid and alkyl acrylates and methacrylates.  Two or more monomers may be used and there may be pressure radiation sensitive solvents, e.g. chloroform; and molecular weight regulators, e.g. mercaptans.  Fibres specified include nylon, rayon and polyester fibres.  To improve adhesion to the rubber an adhesive may be applied to the fibres.ALSO:Composite articles are obtained by irradiating fibres in the presence of a monomer containing a vinyl or vinylidine group, whereby the monomer is polymerized, and incorporating the polymer modified fibres in a rubber composition and vulcanizing.  Monomers specified for polymerizing on to the fibres are butadiene, isoprene, chloroprene, styrene, vinyl- and methyl vinylpyridine, acrylic and methacrylic acid, and alkyl acrylates and methacrylates.  Two or more monomers may be used and there may be present radiation-sensitive solvents, e.g. chloroform; and molecular weight regulators, e.g. mercaptans.  Fibres specified include nylon, rayon and polyester fibres.
Patent GB-966057-A (GB)
Title: Process for the preparation of dithiophosphoric acid esters
IPC: A01N57/14
Filed: 1962-07-27
Abstract: 966,057. Insecticidal compositions. FARBENFABRIKEN BAYER A.G. July 27, 1962 [July 28, 1961], No. 29057/62. Addition to 922,508. Heading A5E. [Also in Division C2] An insecticidal composition comprises a solid or liquid carrier or diluent and a dithiophosphoric acid ester of the general formula wherein R 1  and R 2  are the same or different unsubstituted or substituted alkyl or alkenyl radicals containing 2 to 6 carbon atoms and R, R<SP>1</SP> and R<SP>11</SP> are selected from hydrogen, chlorine, bromine and fluorine atoms or alkyl or alkoxy radicals containing up to 4 carbon atoms with the proviso that if R<SP>11</SP> is a chlorine atom then R and R<SP>1</SP> cannot both be hydrogen atoms and with the further proviso that at least one of R, R<SP>1</SP> and R<SP>11</SP> is other than a hydrogen atom (see Division C2). A suitable composition is obtained by mixing the phosphorus ester with the same amount of dimethyl formamide as auxiliary solvent, adding a benzyl hydroxy diphenyl polyglycol ether as emulsifier and then diluting with water. Specification 866,422 also is referred to.
Patent GB-694978-A (GB)
Title: Diisocyanate-modified polyester or polyesteramide elastomers
IPC: C08G18/68
Filed: 1950-11-28
Abstract: Synthetic elastomers are prepared by reacting a linear polyester or polyesteramide having a hydroxyl number from 30-140, preferably 50-60 and an acid number from 0-12 with 2,4-tolylene diisocyanate, hexamethylene diisocyanate or tetramethylene diisocyanate or a mixture thereof, in an amount of from 1.0 to 1.2 mols. per mol. of polyester or polyesteramide.  The amino groups in the reactants used for the polyesteramide should not exceed 30 per cent of the total hydroxyl and amino groups in the reactants. The Specification lists a large number of suitable starting materials for the polyester or polyesteramide, including unsaturated acids, and gives examples of starting mixes.  The elastomeric product may be cured by adding a polyisocyanate in such amount as to provide a total number of -NCO equivalents of from 2.8 to 3.2 per mol. of initial polyester or polyesteramide. Curing may also be effected with other curing materials, e.g. alkyl ethers of hexamethylol melamine with a 2,4-dihalo naphthol as accelerator, or sulphur, benzoyl peroxide, or tertiary butyl hydroperoxide if the polymer contains unsaturation. If 2.4 tolylene diisocyanate is used as curing agent it may be used in the form of its dimer.  In an example a polyester from adipic acid, ethylene glycol and 1.2 propylene glycol, of hydroxyl number 55.6 and acid number 3.1, was reacted with 2.4 tolylene diisocyanate (1.1 mols. per mol. polyester) at 120 DEG  C. for 15 minutes and then, after pouring the reaction mixture into a tray, at 120 DEG  C. for 8 hours.  The modified polyester was then cured by reaction with 4,41-diphenyl diisocyanate to bring the total diisocyanate reacted with the polyester to 1.59 mols. per mol. Four other examples are given using various amounts of tolylene and hexamethylene diisocyanates in the initial reaction with the polyester.  The products are useful for tyres, belts, hose, sheet p  packing, gaskets, mats, dipped goods, footwear, tank linings and covered rolls.  Specifications 553,733 and 694,982 are referred to.
Patent GB-1276366-A (GB)
Title: Side-looking pulse radar system
IPC: G01S13/90
Filed: 1969-06-09
Abstract: 1276366 Pulse radar THOMSON-CSF 9 June 1969 [18 June 1968] 29167/69 Heading H4D In a mono-pulse radar system, mounted on an aircraft, a side-looking antenea detects moving targets, which echoes from fixed targets are eilliminated. Drift compensation may be effected by a further conventional Doppler radar system. The aircraft, A, carries a sidelooking radar, 1, the radiation pattern of which comprises two lobes, R, symmetrical about the axis, AX. The antenna is fed through the radar difference channel. The relative radial velocities of targets, lying within the lobes, with respect to the radar antenna, determined by the Doppler frequency shift. For fixed targets the resultant Doppler frequencies are rejected by the narrow-band filter, 10. For certain moving targets, which have a zero radial velocity in relation to the aircraft, and which lie within the lobes, the Doppler frequency is zero and the resultant signal is passed to the indicator 11, through the filter, 10. The duplexer, 2, couples the antenna difference channel alternately to the transmitter 3 and the receiver mixer, 4. The indicator may be a photographic film.
Patent GB-430568-A (GB)
Title: Improvements in and connected with signalling or indicating temperatures and fires in rooms or chambers in ships and hotels or structures
IPC: G08B17/02
Filed: 1933-10-21
Abstract: 430,568. Temperature alarms; fireextinguishing. TYSON, D., 12, Penrhyn Avenue, Litherland, Liverpool. Oct. 21, 1933, No. 29191. [Classes 47 (i) and 47 (ii)] [See also Group XXXVII] A control switch for fire or temperature alarms or for fire-extinguishing apparatus, comprises a bimetallic element adapted to close a circuit when the temperature reaches a certain point, and spring means also adapted, when released, to cause the circuit to be closed and normally restrained by an inflammable link, e.g. of celluloid, which is destroyed by flame. A casing 10, 12, suitably perforated to allow access of flames or heated air to the thermal elements, supports, by means of an insulating base plate 14, a slotted post 15 carrying a bimetallic element 21 and a spring 22. The element 21 has extensions 25 of brass adapted, when the element is heated, to make contact with contacts 20 carried by terminal posts 19. The spring 22 normally is held compressed, Fig. 3, by a celluloid strip 27. When the latter is burned, the spring expands and presses the extensions 25 against the contacts 20. The strip 27 is extended between the parts 10 and 12 of the casing to form a substantially dust-proof enclosure for the switch elements. Two terminal posts 31 are in electrical connection with the post 15, so that two separate circuits can be controlled by the switch.
Patent GB-643502-A (GB)
Title: Hollow bricks for lodging flues and smoke discharge pipes, and chimney shafts and the like made with the aid thereof
IPC: E04F17/02
Filed: 1947-11-01
Abstract: 643,502. Chimneys. ALTMANN, J. Nov. 1, 1947, No. 29219. Convention date, March 19, 1946. [Class 25] A hollow brick inside which flue pipes are held fast by webs is provided with at least one web with a face tangential to the circumference of the flue pipe and oblique with respect to the wall of the brick, the flue pipe having axial protuberances which on turning the pipe may be arranged to bear against the tangential face of the web. A flue pipe 5 is disposed within the hollow brick 1 so that axial protuberances 6 bear against webs 4 one of which is provided with an oblique projection 7 having a tangential face. One corner is combined with a web 4a to form a double chamber 3 used for connecting the hollow brick 1 to brickwork. One wall of the chamber 3 may be oblique as shown by dotted lines 8. More than one flue pipe 5 may be disposed within the hollow brick 1, in which case the oblique web having a face tangential to the flue is in the form of a partition oblique along part of its length. In setting up a chimney stack using bricks and flue pipes according to the invention, joins between the flue pipes are made at the centre of each hollow brick 1, the hollow remaining between the pipe and the brick usually being filled with concrete, course by course.
Patent GB-1389475-A (GB)
Title: Rotary web printing machine
IPC: B41F13/54
Filed: 1972-06-22
Abstract: 1389475 Delivering sheets IZDATELSTVO IZVESTIA SOVETOV DEPUTATOV TRUDYASCHIKHSYA SSSR 22 June 1972 [10 Sept 1971] 29232/72 Addition to 1341232 Heading B8R Newspapers 10 leaving the folder 8 of a webfed rotary press are directed by a deflector 13 to one of a pair of fly-type delivery drums 14. Beneath each drum is a hopper 16, 17 comprising a slotted, vertically movable base 28, 29. When a counted number of newspapers has been delivered to one hopper the deflector 13 directs newspapers to the other hopper while the base of the full hopper is moved downwardly at an accelerated rate to deposit the batch on to a take-away roller conveyer 40. Each delivery drum 14 comprises a pair of guiding discs 20, each disc having a set of circumferentially arranged rods 22 which are movable axially inwardly of the delivery drum under the control of cams 24 to effect registration of the newspapers as they approach the stack. Associated with each hopper is a two bladed rotary brush 42 which compresses the fold of each newspaper as it reaches the stack. The base members of the hoppers are carried on endless chains 32, 33, 34 and 35 driven from the drive of the delivery drums 14.
Patent GB-901678-A (GB)
Title: Apparatus for moistening air
IPC: F24F6/14
Filed: 1960-08-25
Abstract: 901,678. Moistening air. SVENSKA FLAKTFABRIKEN A.B. Aug. 25, 1960 [Aug. 31, 1959], No. 29385/60. Class 55 (2). Air to be moistened is drawn through a rectangular casing 1 and sprayed with water from rows of spray nozzles 4, the air having passed through a distributer 9 which extends across the casing and provides jets of air issuing from nozzles 10 arranged so that the jets intersect at points behind the rows of spray nozzles and intermediate the jets of air, rotating streams issuing from tangential slots in the arcuate portions 11 of the distributer and into which the water from the nozzles 4 is sprayed. Slots are also arranged adjacent the side walls of the casing to prevent water collecting thereon and below the distributer there is a sloping perforated wall 18 to prevent water collecting on the bottom of the casing.
Patent GB-1113421-A (GB)
Title: Electrodes and methods of making same
Inventor: COTTON JOSEPH BERNARD
IPC: C25D5/50
Filed: 1964-07-20
Abstract: A surface region of a body of titanium or a titanium -base alloy of similar anodic polarization properties is coated with a fine scale mixture of a relatively insoluble metal and a more easily soluble metal and the latter is subsequently dissolved out thus forming an electrode having a large surface area.  As described the insoluble metal is one of the Group VIII platinum group metals or an alloy consisting of such metals and the soluble metal is copper, silver, nickel or tin. The fine scale mixture may be formed by successively electro-plating with the insoluble and soluble metals and heating to cause them to interdiffuse e.g. by plating titanium with platinum from an alkaline bath containing sodium hexahydroxy platinate, optionally heating, e.g. at 780 DEG C., to bond the plating to the base, then electro-plating with copper and heating to 400 to 800 DEG C.  The soluble metal e.g. copper may then be removed by chemical etching in nitric acid or anodic etching in sulphuric acid.  The resulting electrode has a reduced over-voltage when used as anodes e.g. in the electrolysis of sodium chloride solution. Reference is made to effecting coating by dipping, chemical reduction, or vapour deposition, or pack treatment in metal powder, and to co-deposition of the insoluble and soluble metals prior to electro-plating the titanium may be etched in HCl and scrubbed with abrasive powder.