baber/WOPTO huggingface dataset:
Patent GB-913772-A (GB)
Title: Method for laminating sheets of flexible porous material
IPC: B32B27/00
Filed: 1958-08-11
Abstract: 913,772. Laminating. SMITH MANUFACTURING CO. Ltd. Dec. 16, 1958 [Aug. 11, 1958], No. 25671/58. Class 140. [Also in Group XVI] A method of moulding at least one layer of flexible porous material to a shape to be retained, e.g. felt 54, comprises laying the felt 54, treated with a binder, against a shaped, perforated bed 10 at a first location A, moving the bed to a second location where the binder is set by directing a stream of air through the felt 54 and the bed 10, and returning the bed 10 to location A after removal of the felt. Two layers of material may be laminated by the method, e.g. in making car mats, the layer of felt 54 impregnated with a suitable binder and suitably cut and preferably embossed on one surface, is laid on the shaped, perforated bed 10 at the station A, the embossed surface contacting the bed. The bed is rotated on the track 16 by an intermittently-energized motor to station B where a layer 56 of tufted carpet pile having knitted or woven fabric backing is placed on the layer 54, one or both of the layers 54, 56 being coated with adhesive. A fan 35 draws air through the layers 54, 56 and bed 10 to hold the layers in contact. The bed is then further rotated to pass the shroud 46 through which air warmed at 52 is circulated by the fan 35 to set the adhesive and fix the laminate in the required shape. The laminated and shaped carpet is removed at station C. Two examples of adhesives are given, namely:-(1) 25 parts water-based vinyl acetate emulsion, 75 parts water-based acrylic resin emulsion, and 5 parts sodium polyacrylate, and (2) 75 parts butadienestyrene copolymer water-based emulsion and 25 parts a water-based asphalt emulsion. In a modification, Fig. 3 (not shown), the felt, impregnated with a size, after location on a perforated bed is moved into a drying oven where warm air is drawn by a fan through the bed and the felt to set the size. Two examples of a liquid size are given, namely:-(1) 100 parts of a 50/50 styrene-butadiene copolymer, 5 parts curing agent (examples given), 1 part wetting agent (example given), 8 parts china clay, 15 parts colour dispersion, and 200 parts water, and (2) as in (1) but omitting the china clay and curing agent and including 35 parts plasticizer emulsion (examples given). Alternatively, a dry powder size may be employed. At a following station, after trimming, the carpet material is applied as before (adhesive being applied as described previously), trimmed, and the laminate passed through an oven through which warm air is drawn to set the adhesive. In this embodiment, the beds are mounted on trucks running round a track and are moved intermittently by a caterpillar drive by an electric motor, means being provided automatically to tilt the beds on the trucks at the stations where each layer is applied and automatically to open and close the oven doors. According to the Provisional Specification, the finished laminate may have holes punched therethrough.
Patent GB-916340-A (GB)
Title: Improvements in or relating to a heald with lingoe
IPC: D03C3/40
Filed: 1959-07-27
Abstract: 916,340. Jacquard healds. GRAB & CO. A.G. July 27, 1959 [Aug. 5, 1958], No. 25738/59. Class 142 (2). A lingo is rigidly attached to a jacquard heald by placing the eyelet of the heald between legs 8 and squeezing the legs together until they occupy the same width as the body 5 of the lingo; projections 9 on the legs pass through the eyelet and come into contact with each other, and the legs 8 grip the heald immediately above the eyelet.
Patent GB-1328172-A (GB)
Title: Antennae
IPC: H01Q1/12
Filed: 1971-04-19
Abstract: 1328172 Aerials SONY CORP 19 April 1971 [21 Nov 1970] 25784/71 Heading H4A A wideband aerial comprises a first aerial element formed by a conductive plate member in which a closed loop portion is combined with a dipole portion. The outer ends of the dipole portion are electrically connected to the loop portion, and at least one window is formed between the two portions. The total window area is from 1/8 to 7/8 of the surface area, including said total window area, defined by the outer periphery of said conductive plate member. The aerial further comprises another aerial element, mounted forwardly of the first aerial element. The first aerial element may be a flat circular conductive plate 1, Fig. 1, of diameter I with a window 2 formed by two sector portions 2a, 2b which merge near the centre O of the plate. There results a ring-shaped loop portion of thickness t to which extend sectorshaped dipole arms each of angle #, and having feed points 4a, 4b near the centre of the element. The diameter l may be about one-third of the longest operating wavelength. The thickness t is small compared with l (for example, l/25) and the angle # may be selected according to the operating frequency band and the value of impedance desired (# may be, for example, from 15 degrees to 150 degrees). In other arrangements featuring flat conductive plates, the shape of the window is varied and, in some, the shape of the periphery as well (Figs. 7 to 10, not shown). An element of this kind may be fitted inside a television receiver (Fig. 11, not shown). If an element of this kind is to be used as a reflector the two dipole arms may be merged at the centre, so that two windows are formed (Fig. 12, not shown). Alternatively, the dipole feed points may be connected by an inductor (Fig. 16, not shown). Instead of being flat, the element may be of paraboloidal shape (Fig. 13, not shown). In a first embodiment, such a paraboloidal element is associated as a reflector with a simple dipole active element (Fig. 14, not shown). In other embodiments, Yagi-type aerials comprise reflector elements of the kind described above, associated with conventional directors and with active elements which are either of the kind described above or are of "bow-tie" dipole type (Figs. 17, 18, not shown). In another embodiment, a dipole 101, Fig. 22A, is associated with a paraboloidal reflector element 100 of the kind described above. The dipole 101 has arms which are bent back towards the element 100, and it is fed from the rear of said reflector through, an impedance matching line 10a. A hinge 10b allows the line with the dipole to be folded upwards for transit, when a slidable support 17 has been released (Fig. 22B, not shown). The element 100 is supported from a mast 20, mounted on a base 19, by an arm 21.
Patent GB-643981-A (GB)
Title: Improvements in or relating to electromechanical wave-guide modulators or switches
IPC: H03C7/02
Filed: 1946-08-28
Abstract: 643,981. Wave-guides. SPERRY GYROSCOPE CO., Inc. Aug. 28, 1946, No. 25867. Convention date, Aug. 30, 1947. [Class 40 (viii)] [Also in Group XL (c)] A wave-guide switching or amplitude modulating apparatus comprises a wave-guide with an open end spaced from the open end of another wave-guide, abrupt constriction at the end of one guide to reduce the effective crosssection of the guide, and a member of variable reflectivity rotating between the wave-guide ends. In a distributer system, Fig. 1, particularly for use in aircraft instrument landing transmitters, the output of a generator 11 is modulated at one of two audio frequencies, and fed to loads 12, 13, 14 and 15 in succession. A wave-guide 16, coupled to generator 11, forms a shunt T-join with wave-guides 17, 18, each of which is bent through a quarter circle. Waveguides 19, 21 and 23, 22, arranged side-by-side, form series T-junctions with wave-guides 17. and 18 respectively. Load circuits 12, 14, 15 and 13 are coupled to wave-guides 24, 27, 25 and 26, the open ends of these wave-guides being opposite and adjacent to but spaced from the open ends of wave-guides 19, 23, 21 and 22, respectively. A metal disc 28, driven by a motor 32, rotates in the air gaps 34, 37 coupling guides 19 and 23 to guides 24 and 27 respectively. A similar disc 29, also driven by motor 32, rotates in the air-gaps 35, 36, coupling guides 21, 22 to guides 25, 26 respectively. Each wave-guide 24, 25, 26 and 27 is terminated by a diaphragm 42, Fig. 3, provided with a resonant slot 43, thus reducing the effective cross-section of the wave-guide and the size of discs 28, 29. Each air-gap, such as 34, is provided with a wave-trap, Fig. 4, comprising annularly slotted members 38, 39, on ends of the coupled waveguides 19, 24. The annular slot 41 is made i-wavelength deep at the operating frequency and “-wavelength from the wave-guide opening. The discs 28, 29 have five and eight notches respectively spaced over a quarter of their circumference, and are arranged to permit energy to flow to each load 12-15 in turn. If motor 32 runs at 1800 r.p.m., the energy passed by disc 28 to loads 12 and 14 is modulated at 600 c/s., while the energy passed by disc 29 to loads 13, 15 is modulated at 900 c/s. Specifications 582,768 and 608,839 are referred to.
Patent GB-502803-A (GB)
Title: Improvements in or relating to a toggle-joint centre-joint-pin with link and other coupling-means thereon and therethrough
IPC: F16C11/04
Filed: 1937-09-24
Abstract: 502,803. Hinges; toggles. HUMPHRIS, F. Sept. 24, 1937, No. 25888. [Class 65 (ii)] [Also in Group XXIV] A toggle-link mechanism, as used in presses, has a bearing pin a provided at its ends with means for rigidly locating flanged caps b holding the links d, d' in close bearing contact with the pin, and along its length with holes a<5> accommodating screw-threaded link-actuating rods e. In the form shown, the caps b are attached to the pin by projections b<3> forced into holes a<2> and are provided with an antifriction liner f on the surfaces, co-operating with the projections d<2>, d<3> of the links d, d<1>. The links d, d' have recesses d<4>, d<5> to clear the actuating rods e. The ends of the rods e have a collar el which abuts on the surface a<6> of the pin a, and an extension with a threaded shank e<2> which passes through a tubular distance piece c maintaining the pitch distance of the pins a. The distance piece c may be made adjustable in length by dividing it into two parts joined by a screw-threaded joint. In a modification, the caps b are attached by a key and stud to projections formed at the ends of the pin a. The friction liner f may be dispensed with, and the flanges b<2> may be in the form of a divided ring.
Patent GB-239736-A (GB)
Title: Improvements in electric discharge tubes
IPC: H01J19/34
Filed: 1924-10-30
Abstract: 239,736. General Electric Co., Ltd., Bartlett, A. C., Le Rossignol, R., and Gardiner, H. W. B. Oct. 30, 1924. V a c u u m tubes.- Anodes for high-power rectifiers and other discharge tubes in which the anode forms part of the hermetically - sealed envelope comprise two or more hollow parallel cylinders substantially closed in cross-section and each surrounding a straight portion of the cathode. A mica or other insulating tube within the envelope may be secured to one end of the anode and formed with means for supporting tensioned supports for the cathode filament at the end remote from the filament leads. The anode 11, Fig. 1, may be formed from a circular onepiece tube of metal such as copper by depressing the central part 24, Fig. 3, at each side to form two cylindrical chambers 23. Each chamber 23 surrounds a straight part 20 of the filament, the two parts 20 being connected at one end by a bridge 21 and supported at the other end from a foot-tube 16 by leads 19. The bridge 21 is carried by wires 25 supported by a cup 26, springs 27 acting against nuts 28 tensioning the parts 20 and the wires 25 being guided in perforated discs at the apices of wire tripods 29 on the cup 26. The cup 26 is carried by a mica tube 30 having an external ring 21 and secured by means of a flanged tube 32 and studs 33 to a metal ring 34 inserted in one end of the anode 11. A jacket 38 to which the anode lead may be connected is secured by welded flanges 36, 37 and a ring 39 to the anode. Glass tubes 12, 13 completing the envelope are sealed to the anode by nickeliron or like metal rings 14, 15 welded or soldered to the anode with the glass fused on, the foot 16 being sealed to the tube 12 and the envelope then evacuated through the tube 13 and sealed off. A guard ring 41 fitting over the ring 34 prevents discharges from the studs 33, and this ring 41 and a metal ring 35 inserted in the other end of the anode protect the glass near the joints with the metal. In a modification, the anode comprises parallel cylindrical metal tubes connected together at the ends and with the envelope completed by vitreous end-pieces. Specification 223,293 is referred to.
Patent GB-923584-A (GB)
Title: Polymeric compounds
Inventor: NIEBERGALL HEINZ RUDOLF
IPC: C08G79/12
Filed: 1958-08-13
Abstract: A polymer having the unit general formula <FORM:0923584/IV(a)/1> wherein A is N or CH, R is H or CH3, X is -O- or -NH-, R1 and R2 are each an alkyl or aryl radical, Y is a divalent group comprising a direct chain of at least 3 C atoms and may also contain a S atom in the chain, and M is Si or Sn, may be made by reacting together (a) an unsaturated derivative of 1, 3, 5-triazine or of 1, 3-pyrimidine having the general formula <FORM:0923584/IV(a)/2> in which A is N or CH, X is -O- or -NH- and Y1 is an unsaturated group comprising a direct chain of at least 3 C atoms with a single ethylenic double bond in the chain, and (b) a diorgano tin or silicon compound of the formula <FORM:0923584/IV(a)/3> wherein the Z's are H atoms or mercapto groups of the formula -(CH2)n-SH, n being a small number, and R1, R2 and M are as above defined.  Reactants specified are 2-methyl-4:6-diallyloxy-1:3:5-triazine, 2-methyl-4:6-diallylamino-1:3:5-triazine, 2-methyl-4:6-diallyloxy-pyrimidine, diethyl tin hydride and diethyl-, diphenyl-, methylphenyl- and dimethyl-bis-(mercaptopropyl)-silanes. The reaction may be effected in the absence or presence of (i) solvents, e.g. tributylamine, tetrahydrofuran, pyran, dioxane, diethyleneglycol dimethylether and ethyleneglycol diethylether, and (ii) catalysts, e.g. organic peroxides, azo-compounds, ultra-violet light (with or without such catalysts), platinum, nickel and hydrochloroplatinic acid, at temperatures varying from room temperature to 200 DEG C.  The resulting polymers may be oils, resins, rubbers or amorphous powders.  Examples are given.
Patent GB-1221486-A (GB)
Title: Apparatus for contacting at least two fluid phases
Inventor: LANDAU JOSEF
IPC: B01F23/00
Filed: 1968-05-31
Abstract: 1,221,486. Contact apparatus; mixing apparatus; contacting gases with liquids. CESKOSLOVENSKA AKADEMIE Ved. 31 May, 1968 [13 June, 1967], No. 26087/68. Headings B1C, B1F and B1R. Apparatus for contacting two fluid phases comprises a longitudinally extending vessel provided with inlets and outlets for the supply and the discharge of fluids respectively, there being arranged in the vessel at least two spaced transversely extending plates, means being provided for simultaneously reciprocating the plates in the direction of the longitudinal axis of the vessel, the plates being provided with a plurality of first holes and at least one second hole, the area of the or each second hole or the smallest second hole if they are of different sizes being at least three times greater than the area of a first hole or the largest first hole if they are of different sizes, the number of first holes being at least 65% of the total number of holes in the plate and each plate being positioned so that the holes thereof are not in axial alignment with the holes of an adjacent plate. Examples of plates are shown in Figs. 1, 5 and 6. The apparatus can be used for liquid/liquid extraction, absorbing gases in liquids and for carrying out chemical reactions between liquids and/or gases.
Patent GB-847921-A (GB)
Title: Manufacture of finely porous materials
IPC: C08J9/06
Filed: 1956-08-27
Abstract: Solid or pasty rubber or synthetic resin is added to a mixture of blowing agent (other than a nitrosamine) and a surface active agent, and the whole vulcanized or cured by heating.  The blowing agent may be formed in the presence of the whole or a part of the surface active agent.  Blowing agents specified are sodium bicarbonate, ammonium carbonate and bicarbonate, benzene sulphonic acid hydrazide, diazoamino benzene, urea, azo-butyric acid nitrile, or mixtures of ammonium compounds with alkali nitrites; whilst surface active agents listed are alkyl-aryl sulphonates, e.g. sodium dodecyl benzene sulphonate; sulphated fatty alcohols; quaternary ammonium salts containing a high molecular weight radical, e.g. oleyl-benzyl-dimethyl ammonium chloride; and polyalkylene glycol ether derivatives, e.g. a reaction product of ethylene oxide and a fatty alcohol.  Rubbers specified are natural latex and butadiene-styrene copolymers.ALSO:Solid or pasty rubber or synthetic resin is added to a mixture of blowing agent (other than a nitrosamine) and a surface active agent, and the whole vulcanized or cured by heating.  The blowing agent may be formed in the presence of the whole or a part of the surface active agent.  Blowing agents specified are sodium bicarbonate, ammonium carbonate and bicarbonate, benzene sulphonic acid hydrazide, diazoamino benzene, urea, azo-butyric acid nitrile, or mixtures of ammonium compounds with alkali nitrites; whilst surface active agents listed are alkyl-aryl sulphonates e.g. sodium dodecyl benzene sulphonate; sulphated fatty alcohols; quaternary ammonium salts containing a high molecular weight radical e.g. oleyl-benzyl-dimethyl ammonium chloride; and polyalkylene glycol ether derivatives e.g. a reaction product of ethylene oxide and a fatty alcohol.  Rubbers specified are natural latex and butadiene-styrene copolymers.
Patent GB-1030064-A (GB)
Title: Improvements in and relating to chairs
Inventor: DUFFY WILLIAM
IPC: A47C3/12
Filed: 1964-06-25
Abstract: 1,030,064. Securing upholstery. NORTH BRITISH RUBBER CO. Ltd. April 12, 1965 [June 25, 1964], No. 26282/64. Heading A4M. A chair comprises a shell 10 providing a seat portion 11, back-rest 12 and arms 13. The shell is formed from a fibre glass resin moulding to which a backing fabric is cemented. A three-sided wooden frame 15 is positioned around the inside of the shell adjacent the lower end of the back-rest 12 and each arm 13. A cushion 16 of polyurethane foam or sponge rubber is positioned on seat portion 11 and covered by a P.V.C. coated fabric 17 which is attached along opposite edges and at the rear to frame 15. The front portion 17a of fabric 17 is attached by pins 18 to the front of the chair. Cushions 19, 20 are provided on the back-rest and arms respectively. These cushions are also covered by fabric 17 attached to frame-15-and to the chair. A piping cord 21 is positioned adjacent the line of juncture of the respective cushions at the lower ends of arms 13 and back-rest 12 with the seat portion. The piping is also attached to the upper surface of frame 15.
Patent GB-190280-A (GB)
Title: Improvements in and relating to wireless signalling receiving systems
IPC: H01Q11/02
Filed: 1921-10-05
Abstract: 190,280. British Thomson - Houston Co., Ltd., (General Electric Co.). Oct. 5, 1921. Aerials; directive signalling; atmospherics and undesired signals, eliminating.-Relates to horizontal aerials of the kind described in Specification 175,315, wherein signals coming from opposite directions may be received simultaneously, and consists in arranging the detecting-circuits for both sets of signals at one end or at one specific point of the aerial, and also in providing means for neutralizing the effect of strays or of undesired signals. The detecting- circuits are arranged at the end 4 of the horizontal aerial 1, 2. Ether waves travelling in the direction from the end 3 to the end 4 create maximum current effects at the end 4, and these are amplified by an electron discharge device 11, and transferred through a coupling 13, 16 to a detector 21. Waves travelling in the opposite direction create maximum current effects at the end 3, and are there transferred through a coupling 7, 8 back into the aerial, which then acts as a transmission line. These signals are transferred through a coupling 9, 10 to an amplifier 12, and thence through a coupling 14, 18 to a detector 24. To prevent reflection effects, the ground resistances 6, 5 are made equal to the surge impedance of the aerial. To eliminate undesired signals from the detecting circuit 21, a current component from the aerial is transferred through the variable coupling 14, 17 and is passed through a phase-adjuster 25 so as to neutralize the same effects derived from the coupling 13, 16. Similarly in the receiving circuit 24, undesired signals are neutralized by a. current component, which is derived from the aerial through the coupling 13, 15 and is set into opposition by means of a phase-adjuster 26.
Patent GB-944836-A (GB)
Title: Improvements in or relating to the bonding of fluorinated polymeric coatings
IPC: B05D5/08
Filed: 1962-07-10
Abstract: A method of coating articles comprises flame spraying a refractory oxide on to the surface of an article to form a porous oxide coating thereon and then applying a coating of polytetrafluoroethylene or tetrafluoroethylene/hexafluoropropylene copolymer to the oxide coating.  The refractory oxide, which is supplied as a powder to the spray gun, may be aluminium oxide, a mixture of nickel and chromium oxides, nickel oxide and molybdenum oxide.  The articles specified are moulding tools and frying pans.  In the example the article is baked to remove oils and solvents, vapour degreased be exposure to trichloroethylene, grit blasted, heated, flame-sprayed with a mixture of nickel and chromium oxides and then with aluminium oxide, cooled, sprayed with the polyfluorocarbon in a solvent carrier, and heated.
Patent GB-482513-A (GB)
Title: Improvements in or relating to deflecting means for cathode-ray tubes or the like
IPC: H01J29/76
Filed: 1936-09-30
Abstract: 482,513. Discharge apparatus. FERNSEH AKT.-GES. Sept. 30, 1936, No. 26501. Convention date, Sept. 30, 1935. [Class 39 (i)] The longitudinal conductors of the deflecting coil of a cathode-ray tube or like electrondischarge device lie between the surfaces of two concentric cylinders or cones which are coaxial with the tube, and the current in conductors lying on one side of a certain diametral section flows in the opposite direction to that in conductors lying on the other side of the section. The invention is applicable where the beam is of large cross-sectional, e.g. in scanning devices in which an electron image corresponding with an optical image cast upon a photo-electric cathode is to be deflected. In one form, Fig. 1, the conductors 2 are so distributed as shown by the sizes of the dots and crosses, that a substantially homogeneous field 3 is produced. One deflecting coil may be placed within another to produce two mutually perpendicular deflections of the beam, and one or both coils may be adjustable about the tube axis. If the field is to diverge as shown in Fig. 4, for example, when a rectangular scan is required on a surface oblique to the direction of the undeflected beam, the current distribution is such that the average current density below the section line 7 is greater than that above. The coil may be situated within or outside the tube and may be wound on the ceramic support formed with indentations or grooves to receive the wires.