baber/WOPTO huggingface dataset:
Patent GB-551457-A (GB)
Title: Improvements in or relating to toggle fastenings
IPC: E05C19/14
Filed: 1942-10-08
Abstract: 551,457. Hasp and like fastenings. WILLEN KEY CO., Ltd., WALKER, J., and HARRIS, D. Oct. 8, 1942, No. 16581. Divided out of 551,451. [Class 44] In a toggle-type of fastening for box lids &c. having an attachment plate 18 with lugs 23 on which is pivotally mounted an operating lever 28, the lever having pivoted thereon at 29 a loop 6 adapted to engage over a hooked member 7, and be moved into fastening engagement by depression of lever 28, the fastening is positively secured against accidental release by a pin 32 passed through apertures 31 in the the lever in front of the loop 6 as shown. The particular fastening to which the invention is shown as applied is as described and claimed in Specification 551,451.
Patent GB-1094195-A (GB)
Title: Bonding process
Inventor: LAMB FRANK
IPC: D04H1/645
Filed: 1964-04-22
Abstract: Esters, to be used as plasticizers for bonding polyester fibres (see Division D1), are made as follows: (Example 1) isophthalic acid, benzyl alcohol, xylene and tetrabutyl titanate as catalyst are boiled under reflux, water being removed continuously; xylene and unreacted benzyl alcohol are then removed by distillation, and the crude product distilled in a nitrogen atmosphere at reduced pressure; (Example 2) 2-phenyl-ethanol, isophthalic acid, xylene and tetrabutyl titanate as catalyst are boiled under reflux, water being removed continuously; the reaction product solidifies on cooling, and is dissolved in toluene, washed with 5% aqueous sodium hydroxide, filtered and washed with water; the organic layer is separated, freed from solvent by distillation at reduced pressure and finally distilled in a nitrogen atmosphere at reduced pressure; (Example 3) isophthalic acid, a commercial mixture of xylenols, xylene and paratoluenesulphonic acid as catalyst are boiled under reflux, water being removed continuously; when the reaction is half complete, further paratoluenesulphonic acid is added; the reaction product is allowed to cool, diluted with toluene, washed with 5% aqueous sodium hydroxide, and washed free of alkali with aqueous sodium chloride; volatile matter is distilled off at reduced pressure and the product distilled in a nitrogen atmosphere at a lower pressure.ALSO:Polyester fibres in the form of wadding are bonded by contacting at least part of the outer surface of a mass of the fibres with a diester.  This diester is the diester of a dicarboxylic acid with the same or two different mono-hydroxy compounds or the diester of a dihydroxy compound with the same or two different monocarboxylic acids, and the hydroxy compound contains in the molecule an aromatic ring.  The fibres may be of polyethylene terephthalate, and the diester may be dibenzyl phthalate, dibenzyl isophthalate, beta-phenyl-ethyl isophthalate, dixylenyl isophthalate, dibenzyl succinate, resorcinol bis-phenylacetate, resorcinol diacetate, resorcinol bis-trichloroacetate or hydroquinone diacetate.  The mass of fibres may be steeped in the ester, or may be sprayed with the liquid ester. The fibres are preferably contacted with the ester at elevated temperature and held at this temperature for a while after contact. If the diester is a solid, it may be liquified for application by melting or by dispersion in water or in a liquid diester also effective in the process.
Patent GB-540360-A (GB)
Title: Improvements in and relating to metal compositions
IPC: C22C32/00
Filed: 1940-11-19
Abstract: 540,360. Alloys. MALLORY METALLURGICAL PRODUCTS, Ltd. Nov. 19, 1940, No. 16669. Convention date, June 22. [Class 82 (i)] An alloy particularly for electric contacts consists of 35-70 per cent. of carbides of titanium, zirconium, vanadium, niobium, tantalum, molybdenum, and tungsten, 0.25-15 per cent. of cobalt, and 25-64 per cent. of silver. The alloys may be made by pressing and sintering a mixture of the carbide powders, cobalt powder, and a binder such as resin and subsequently impregnating the product with silver, or by pressing, with or without sintering, a mixture of carbide powder, cobalt powder, and silver powder. In place of silver, alloys of silver with cadmium, zinc, tin, indium, palladium and gold may be used.
Patent GB-281353-A (GB)
Title: Improvements in a method of and means for controlling the transfer of electrical energy
IPC: H03H5/00
Filed: 1926-07-03
Abstract: 281,353. King, L. G. July 3, 1926. Tuning-apparatus, construction of; composite units.-The energy between coupled electric circuits is controlled by mounting a rotatable coil on a fixed axis in inductive relationship to another coil, the parts being arranged so that the axis of at least one of the coils may be displaced at an angle other than 45 or 90‹ to the axis of rotation of the movable coil. As shown, both coils 10, 22 are adjustable, the coil 10 being angularly displaced about the shaft 14, 17 by a screw 15 and the coil 22 is adjusted by a pin-andslot connection 26, 28. The shaft) part 14 may be adjusted longitudinally in a cup 16 on a condenser shaft 17 by means of a set screw 18. The tuning element 19 may be an element other than a condenser.
Patent GB-438779-A (GB)
Title: Attachment for sewing machines
IPC: D05B21/00
Filed: 1935-06-08
Abstract: 438,779. Sewing - machines. SINGER MANUFACTURING CO., Elizabeth, New Jersey, U.S.A. June 8, 1935, No. 16739. Convention date, Dec. 20, 1934. [Class 112] The invention comprises an attachment for domestic sewing-machines for sewing zigzag stitches. A ratchet and pawl arrangement actuated by the needle bar enables the presser foot to move the work across the normal line of stitching while the usual four-motion feed dog is below the cloth plate. On the upward movement of the needle bar 2, the needle clamp 3 engages the projection 36 on the lever 35 and moves the lever 31 and pawl 39 upwardly to the position shown in Fig. 1. The pawl 39 engages the ratchet 28 and advances it one step or one-eighth of a revolution. The element 26 is moved likewise to cause one of its spaced projections to contact with a projection 25 on the swinging member 18, causing it to swing in a clockwise direction about its pivot 17. This causes the stud 191 to swing the bell-crank lever 48 in a counterclockwise direction about its pivot 49. This motion is imparted to the slide-plate 13 by a pitman 51 causing the presserfoot 16 to move to the left to the position shown in Fig. 1. This movement of the presser foot feeds the cloth across the line of seam and occurs while the dog 5 is below the cloth plate 55. The amount of sidewise feed by the presser is adjusted by varying the position of one end of the pitman 51 in the arcuate slot 50 of the lever 48.
Patent GB-1482511-A (GB)
Title: Water-tight fitting of a glass in a watch case
IPC: G04B37/11
Filed: 1976-04-26
Abstract: 1482511 Watch cases SBBM BURDET SA 26 April 1976 [23 May 1975] 16822/76  Heading G3T In a watch case with a middle body 1 having a circular rear opening intended to be closed by a case back (13) Fig. 2 (not shown) and a non- circular front opening 2 defined by an inwardly facing collar, a glass 3 is provided with a peripheral flange 4a dimensioned to pass with slight play through the opening 2 so that the glass can be inserted from the front of the watch and is then retained by a sealing gasket 5 compressed between the collar and the flange. During assembly the movement 9 complete with dial 8 and hands 15 is placed in casing ring 10 and inserted through the opening 2. The front portion 11 of the ring 10 rests on the upper edge of a threaded portion at the rear of the body 1, allowing the gasket to be inserted. As the back (13) is screwed in, the ring 10 is pushed forward to press the glass against the gasket. The use of a separate screwed ring to press on the ring 10 is also envisaged.
Patent GB-1178922-A (GB)
Title: Improvements in and relating to Pressure Vessels
IPC: F16L23/02
Filed: 1967-04-12
Abstract: 1,178,922. Pressure vessels; bolted flange joints. FOSTER WHEELER CORP. 12 April, 1967 [13 April, l966], No. 16869/67. Headings F2G and F2P. A pressure vessel has at least one joint between two components thereof, for example, the body of the vessel and a closure 15 therefor. The or each joint comprises a plurality of tapped holes 19 spaced around the interface between the two components, each hole being partly in one component and partly in the other. A stud 21 is provided, in the or each hole 19, such that on the two components being urged apart by forces inside the pressure vessel, shear forces are set up along the length of the studs 21. In the construction shown a sealing ring 23 is located between the body of the vessel and the closure 15. The closure 15 is positioned longitudinally of the vessel by a shoulder 16 and circumferentially by drilling the holes 19 at unequal radial angles. To hold the closure and vessel body in relatively fixed positions before the drilling and tapping of the holes 19, three dowel pins are let into the interface (Fig. 3, not shown). The vessel body and closure may have tapered co-operating surfaces, the studs either being parallel with the interface or at a small angle thereto (Fig. 7, not shown). Two body parts of a pressure vessel may be provided with co-operating small flanges, a ring being placed about the flanges and tipped, stud engaging, holes being provided in the interfaces (Figs. 2, 3, not shown). Interfaces may be provided by interengaging crenelations formed on two components (Figs. 5, 6, not shown). The joint may be provided between layers of a pressure vessel body, the studs between one pair of layers being offset from studs between a further adjacent pair (Figs. 4, 8, not shown). Each stud may be in a plurality of parts and each part thereof may fit in a differently diametered part of a hole (Fig. 9, not shown).
Patent GB-1532469-A (GB)
Title: Optical waveguides
IPC: G02B6/125
Filed: 1976-04-26
Abstract: 1532469 Thin film waveguides SONY CORP 26 April 1976 [2 May 1975] 16882/76 Heading G2J [Also in Division H1] An optical waveguide comprises a layer of oxygen and/or nitrogen doped polycrystalline silicon formed on a substrate. As described the substrate is a silicon wafer or a silicon dioxide layer thereon. The layer is preferably deposited at 600-650‹C from a mixture of monosilane and nitrous oxide or ammonia (for oxygen and nitrogen doping respectively) in a carrier gas. Its refractive index decreases with increase in doping and the dopant content can thus be varied to ensure total internal reflection at its upper and lower surfaces. In one preferred structure for confining the light to the central plane of the guide the doping is graded from a minimum there to a maximum at the surfaces. This grading also enables the lateral edges of waveguides etched from an overall layer to be made convex (to permit optical coupling to a parallel guide a suitable distance away) or the input surface concave (to reduce reflection from a wide angle light source) by use of etches normally used for silicon dioxide and silicon respectively. In the Fig. 9 structure an A III  B V  laser chip 5 and a silicon chip carrying associated guide 4 are mounted on a common heat sink, and in a variant of this in which chip 5 is mounted in a recess in the silicon chip the flared end of the guide is extended to form a circle with a square opening around chip 5.
Patent GB-203094-A (GB)
Title: Improvements in and relating to loose-leaf binders or the like
IPC: B42F13/28
Filed: 1922-06-19
Abstract: 203,094. Pendergast, H. A. June 19, 1922. Claw files; covers; sheets.-In a loose-leaf binder r comprising prong-carrying frames c, d hinged and capable of being locked together, the frames are adapted to slide relatively to one another along the hinge pin e for the purpose of transferring one or any number of consecutive record sheets j to a higher or lower position in the binder. The record sheets j, which are arranged in overlapping series, each series being separated from adjacent series by dividing sheets i, have perforations in one edge so that between each pair of prongs h<1> on one cover there are three perforations. The oppositely-arranged pairs of prongs h, h<1> engage, in the normally closed position of the binder, Fig. 1, pairs of consecutive holes. A space f is provided between each pair of hinge elements c<1>, d<1> on the prong-carrying frames c, d, so that relative movement of the frames along the pivot, pins i is permitted to the extent of the distance between one pair of perforations. If, therefore, a record sheet is removed or added the preceding record sheets can be moved up or down the cover by transferring them to the opposite cover a, sliding the cover along the hinge pin and transferring them back to the cover a<1>, the movement being through a distance equal to that between one pair of perforations. The prongs h, h' are fixed to plates attached to the frames c, d, perforations being provided in the plates to receive the points of the opposite prongs. Fastenings.-The frames c, d are locked together in their closed position by hooks k secured to one frame c and adapted to enter recesses l, l<1> in the opposite frame d and be engaged by latches o<1> on a spring-actuated sliding bar m, a thumbpiece n thereon allowing it to be drawn to the unlocking position.
Patent GB-192018-A (GB)
Title: Improvements in arrows
IPC: F42B6/04
Filed: 1922-06-19
Abstract: 192,018. Orr, R. P., and Samuelson, F. June 19,1922. Projectiles.-The elongated head 3 of an arrow is enclosed in a tubular rubber bag 4 forming a pneumatic cushion. The bag is secured by adhesive, or as shown, by ligaments 6, 7, a, ferrule 8 being provided.
Patent GB-802244-A (GB)
Title: New heterocyclic derivatives and process for their preparation
Inventor: JACOB ROBERT MICHEL
IPC: C07D403/06
Filed: 1955-06-13
Abstract: The invention comprises compounds of the formula <FORM:0802244/IV (b)/1> (wherein A is a saturated divalent aliphatic group which may be substituted by one or more phenyl radicals, B is a straight or branched saturated divalent aliphatic chain and R is an alkyl group containing at most 4 carbon atoms) and their acid-addition and quaternary ammonium salts; and their preparation by reduction of a compound of the formula <FORM:0802244/IV (b)/2> In examples, 1-(3,41-methyl-11-piperazinylpropyl) - 3:3 - diphenyl - pyrrolidine - 2:5 - dione is reduced with lithium aluminium hydride to give 1 - (3,41 - methyl - 11 - piperazinylpropyl)-3:3 - diphenylpyrrolidine (the trihydrochloride of which is also described) and this is converted to its trimethiodide by refluxing with methyl iodide. Specification 535,454 is referred to.
Patent GB-708078-A (GB)
Title: Spinning acrylonitrile polymers
Inventor: CHANEY DAVID WEBB
IPC: D01F6/18
Filed: 1951-07-18
Abstract: Filaments, films, and other articles are obtained by extruding a solution in a volatile solvent of a polymer, containing at least 80 per cent. by weight of acrylonitrile in the polymer molecule, into a coagulating bath consisting of at least 50 per cent. by weight of one or more aromatic hydrocarbons, hydrogenated derivatives of aromatic hydrocarbons, or alkyl-substituted derivatives of aromatic hydrocarbons containing 1-10 carbon atoms in the alkyl groups, and, when the aromatic hydrocarbon or derivative content is less than 100 per cent., at least one aliphatic hydrocarbon.  Benzene, toluene, or xylene, or a hydrogenated or alkylated derivative thereof, or a hydrocarbon mixture containing a predominating proportion of aromatic hydrocarbons, may be used as the coagulating liquid.  Kerosene or a mixture of hydrocarbons in which aliphatic hydrocarbons predominate may be mixed with the aromatic or cyclic hydrocarbons in amounts up to 50 per cent., preferably 0.5-10 per cent. Dimethylacetamide, dimethylformamide, N-formyl morpholine, or cyclic butane sulphone, may be used as volatile solvent for the acrylonitrile polymer.  The polymer may be polyacrylonitrile or a co-polymer of acrylonitrile with one or more polymerizable compounds such as vinyl acetate, acrylic acid or esters thereof, methacrylic acid or esters thereof, styrene, isobutylene, 2-vinyl pyridine, an isomeric vinyl pyrazine, acrylamide, maleic anhydride, a derivative of butadiene monoxide with a secondary amine, or an allyl amine, amide, or sulphonamide.  The coagulating bath may be at a temperature between room temperature and 100 DEG  C. If desired, the zone around the spinning nozzle may be maintained at a higher temperature than the remaining portion of the bath. In an example, a 15 per cent. dimethylformamide solution of a ternary co-polymer containing in the molecule 80 per cent. of acrylonitrile, 10 per cent. of styrene, and 10 per cent. of 2-vinylpyridine is extruded into a mixture of aromatic hydrocarbons at 40 DEG  C.  The yarn obtained is stretched between canted godets, washed with isopropanol, washed in warm water, and collected on a ring twister.  In another example, a blend of acrylonitrilestyrene co-polymer with polyacrylonitrile is prepared.  A mixture of water, acrylonitrile, and styrene, is heated to refluxing temperature, 79 DEG  C., and then potassium persulphate is added.  A mixture of acrylonitrile and styrene is added continuously during the reaction. After 9 minutes a uniform co-polymer containing 38 per cent. of styrene and 62 per cent. of acrylonitrile is obtained.  Acrylonitrile only is then added continuously for 11 minutes, the temperature being maintained at 79 DEG  C.  The reaction is stopped by filtering the mixture.  A blend of co-polymer and homo-polymer containing 80 per cent. of acrylonitrile is obtained.  The blend is dissolved in dimethylformamide and extruded into a liquid mixture consisting mainly of aromatic hydrocarbons so as to form continuous filaments. Specifications 673,841, and 680,359 are referred to.
Patent GB-1094981-A (GB)
Title: Improvements in and relating to the production of barium styphnate monohydrate
Inventor: TAYLOR GEORGE WILLIAM CHARLES
IPC: C07C205/24
Filed: 1945-07-04
Abstract: Barium styphnate is obtained in an improved physical form which renders it particularly suitable for use as a primary and delay composition by slowly adding a solution of a soluble metal styphnate, e.g, magnesium styphnate to a stirred solution of a soluble barium salt at 60-80 DEG  C. and converting the precipitated barium styphnate trihydrate to the monohydrate by the slow addition of dilute nitric acid.
Patent GB-255088-A (GB)
Title: Improvements in and relating to surgical trusses
IPC: A61F5/26
Filed: 1926-07-08
Abstract: 255,088. Nyrop, A. July 10, 1925, [Convention date]. Trusses.-A spherical rubber pad 1 is secured to a stem 3 provided with a hemispherical button 4. The button 4 is passed through a hole near one end of the spring and the stem 3 is thereupon slid into a slot. The free end of the strap 11 may be buttoned over the end of the stem 3, as shown, or buckled to the spring 5. The truss pad is thus capable of angular adjustment. The pad is secured in place by a plate 8 hinged at 7 having a bent-over part 9 engaging the spring 5. The stem 3 may have a neck 2.
Patent GB-167934-A (GB)
Title: Improvements relating to knuckle joints for wind screens, road vehicle hoods, and other like purposes
IPC: B60J1/04
Filed: 1920-06-24
Abstract: 167,934. Roper, F. June 24, 1920. Pivoting-adjustments for wind-screens, roadvehicles, hoods, and other similar purposes consist of a resilient split locking-ring d formed with an eccentric tapered aperture and arranged to encircle a tapered projection b on one of the hinge parts a, this ring being expanded or contracted so as to lock the hinge members together by the interaction of the inclined surface on the members d, b when a nut f on a spindle e is screwed up.
Patent GB-515753-A (GB)
Title: Improvements in or relating to starting devices for internal combustion engines
IPC: F02N15/02
Filed: 1938-06-11
Abstract: 515,753. Turning gear ; ratchet clutches. BOSCH GES., R. (formerly BOSCH AKT.- GES, R.). June 11, 1938, No. 17362. Convention date, June 11, 1937. [Class 7 (v)] [Also in Group XXIV] In an engine starter in which a toothed clutch member h is axially displaceable into engagement with a clutch member p on the engine shaft, a member q is adapted to turn the clutch member h relatively to its driving member b' to prevent clashing of the clutch teeth. As shown, the member h has splines i engaging with angular play in grooves d in the sleeve b<1>, which is moved axially by a fluidpressure piston b and is threaded in a fixed member f to convert the axial movement into rotation. The play in the grooves d is normally taken up by plate springs m, Figs 2 and 3. In operation, the clutch member h is moved axially by a rod t engaged by a lever u actuated by an electro-magnet w on closing a switch 10. If the teeth of the clutch members h, p are in line, a stud n on the member h rides over the inclined end ql of an arm q on the member p and turns. the member h into meshing position: When the clutches are in mesh, an arm y on the lever u closes a switch z in the ignition circuit of an explosive cartridge in the chamber 12, whereby the piston b of the starter is actuated. In a modification, the splines i are replaced by a screw thread and the clutch teeth are inclined to the axis.
Patent GB-1025809-A (GB)
Title: Continuous machine for dry cleaning and drying of wool and other fibrous fabrics
IPC: D06B9/06
Filed: 1964-04-28
Abstract: 1,025,809. Drying webs. B. MEONI, V. MEONI, and R. BARNI. April 28, 1964 [May 10, 1963], No. 17516/64. Heading F4G. [Also in Division D1] Fibrous fabric P is dried, after being drycleaned in chamber 1, by being passed into chamber 2 wherein it is fed in zig-zag form over rollers 17, 18 and taken out through outlet 19. In the chamber the fabric is treated with hot air which evaporates the solvent, the saturated air being exhausted via the intake pipe 20 of a circulating pump 21. The solvent is recovered in a condenser 22 and the air passes over heaters 23 back into the chamber 2. If desired, the chamber 2 may be divided into two parts, the second being filled with ambient air to allow the fabric to dry at room temperature and pressure.
Patent GB-1381625-A (GB)
Title: Pouring end of a tunnel for producting float glass ribbon
IPC: C03B18/04
Filed: 1972-04-17
Abstract: 1381625 Float glass production VETRERIA DI VERNANTE SpA 17 April 1972 [16 April 1971] 17539/72 Heading C1M In the production of flat glass by the float process, the pouring end of the tunnel (14) has a pouring canal (1A) with a pouring lip 5 disposed transversely of the tunnel and spaced inwardly from the inlet end wall 20 of the tunnel and an element 13 is provided adjacent the end wall 20 and extending along the adjoining side walls, the element 13 having an inner contour including two surfaces symmetrical to each other about a plane extending through a peak 8 entering the heel of the molten glass and having two arcuate zones 9 connecting two substantially rectilinear size zones 11, 12 diverging and extending forwardly of the pouring lip 5. The element 13 is preferably of graphite and may be lubricated by a gas flow therethrough of non- oxidizing gas.