baber/WOPTO huggingface dataset:
Patent GB-528121-A (GB)
Title: Improvements in or relating to dart-boards
IPC: F41J3/00
Filed: 1939-04-20
Abstract: 528,121. Dart boards. BROOKES, W. E., and HALL, R. April 20, 1939, No. 11935. [Class 132. (iii)] A device for preventing damage to the background on which a dartboard is placed comprises a ring of hemp or other rope plaited or otherwise woven to shape which may be penetrated by a dart, adapted to be placed around the dart board after the manner of a frame. The ring i fits closely round the periphery of the dart-board a and is rotatable about the board, being secured to the background by screws g and brackets h. The axial thickness of the ring is preferably such that the ring does not project beyond the front face of the board. According to the Provisional Specification the ring may alternatively be made of cork, wood or other suitable material or the ring may comprise a mould of thin metal or other material filled with plastic material.
Patent GB-1176606-A (GB)
Title: Improvements in or relating to pivot fittings for swing window sash.
IPC: E05D7/08
Filed: 1968-03-12
Abstract: 1,176,606. Window pivot. FERCO, S.a.r.L. 12 March, 1968 [12 April, 1967], No. 11986/68. Heading E2F. A pivot arrangement for a swing window sash comprises a plate 1 rigid with the window, a pair of plates 2 and 3 to be coupled together and rigid with the window sash and upper and lower links 9 and 11. The flanges 1a on plate 1 and 2a on plate 2 are adapted to fit together to form a water-tight assembly on the outside of the window when closed. Bearing holes 4 and 5 in plate 1 carry pivots attaching it to the upper link 9 and lower link 11 so as to permit opening and closing movements of the window sash. When the pivot is assembled, plates 2 and 3 are held rigid with each other by means of the stud 6 which fits into the recess 6a when the screw 10 is tightened. The pivot 8 also carries a braking device 14, 15 which is variable by adjustment of the tightness of the screw 10.
Patent GB-861370-A (GB)
Title: Lower alkyl esters of 1-(2,3-dichloropropyl)-4-carboxy-2-pyrrolidone and process for their preparation
IPC: C08K5/3415
Filed: 1959-04-09
Abstract: 1 - (21,31 - Dichloropropyl) - 4 - carboalkoxy - 2-pyrrolidones in which the alkoxy group contains 1 to 4 carbon atoms (see Group IV (b)) are used as plasticizers for vinyl resins, e.g. polyvinyl chloride, and vinyl chloride-vinyl acetate copolymers.  In examples a mixture of vinyl chloride-vinyl acetate copolymer with 1-(21,31, dichloropropyl) - 4 - carbomethoxy - 2 - pyrrolidone (or the corresponding 4-carbobutoxy compound) and a small amount of stearic acid is blended on a two-roll rubber mill at 130 DEG  to 150 DEG C. to form a homogeneous mix which is then rolled into sheet form and allowed to cool.  The compounds also impart self-extinguishing properties to the resins on ignition.ALSO:The invention comprises 1-(21,31-dichloropropyl) - 4 - carboalkoxy - 2 - pyrrolidones wherein the alkoxy group contains 1 to 4 carbon atoms.  They may be obtained by treating the corresponding 1 - allyl - 4 - carboalkoxy - 2 - pyrrolidones in an inert organic solvent, e.g. carbon tetrachloride, with at least an equimolar proportion of chlorine at 0 DEG  to 35 DEG C. Examples are given for the production of compounds in which the carboalkoxy group is carbomethoxy and carbobutoxy respectively. The products may be used as plasticizers for vinyl resins (see Group IV (a)) and are also active against the helminth Hymenolepis mana.  The 1 - allyl - 4 - carboalkoxy - 2 - pyrrolidones used as starting materials may be obtained by reacting the corresponding dilower alkyl esters of itaconic acid and monoallyl amine.  1 - (21,31 - Dichloropropyl) - 4 - carbo - (21,31-dichloropropoxy)-2-pyrrolidone which is stated to show no plasticizing action for vinyl chloridevinyl acetate copolymers may be prepared by chlorinating the allyl ester of 1-allyl-4-carboxy-2-pyrrolidone, the allyl ester being obtained by reacting allyl amine with allyl itaconate.
Patent GB-1183093-A (GB)
Title: Novel Indole Derivatives and a process for producing the same
IPC: C07D209/88
Filed: 1967-03-15
Abstract: 1,183,093. Indole derivatives. SUMITOMO CHEMICAL CO. Ltd. 15 March, 1967 [16 March, 1966; 10 Jan., 1967], No. 12162/67. Heading C2C. Novel indole derivatives of the formula wherein R<SP>1</SP> is a C 1-3  alkyl-, C 1-3  alkoxy-, C 1-3  alkylthio- or halogen-substituted phenyl or naphthyl group or an unsubstituted naphthyl group, an unsubstituted or halogen- or C 1-3  alkyl-substituted 5- or 6-membered heterocyclic ring containing a nitrogen, oxygen or sulphur, or an unsubstituted or halogen-, phenyl-, phenoxy- or C 1-2  alkoxy-substituted C 2-10  alkyl or C 2-10  alkenyl group; R<SP>2</SP> is C 1-3  alkoxy; R<SP>3</SP> and R<SP>4</SP> are independently hydrogen, halogen, hydroxycarbonyl. C 1-3  alkoxycarbonyl, C 1-3  alkyl, C 2-3  alkenyl, or C 1-3  alkoxy; and Y is a saturated chain containing 3 or 4 members, which may all be carbon atoms or one nitrogen and the rest carbon, and acid addition salts of compounds of the above formula in which Y contains a nitrogen atom are prepared by reacting at elevated temperatures suitably substituted phenylhydrazines of the formula with cyclic ketones of the formula Therapeutic compositions, having antiphlogistic, analgesic, antifebric and sedative activities, contain the above novel compounds or acid addition salts thereof and inert non-toxic pharmaceutical diluents or carriers.
Patent GB-261618-A (GB)
Title: Improved fire-proof floor construction
IPC: E04B5/12
Filed: 1926-05-11
Abstract: 261,618. Macomber, S. May 11, 1926. Wood floors other than wood block; reinforcedconcrete floors.-The nailing strips 4 of a wooden flooring are secured to a reinforced concrete floor by stamped metal clips 3, Figs. 10 and 11, which are embedded in the concrete sides 15 of the clips, are slitted and bent to form ears 16 on which the nailing strips 4 rest, and are secured by nails 18. A series of radial slots 11 and central aperture 12 are provided in the base, and tongues 13 are bent down from the sides. The clip may be secured by wire ties 7 to the expanded metal 2 forming the floor reinforcement, or a wooden wedge 9, Fig. 3, may be driven through the slots 11 and the expanded metal and between the main bars 8 forming the upper part of a main support or joist. The clip may be fixed in any desired angular position to suit the run of the flooring.
Patent GB-1493558-A (GB)
Title: Collapsible pre-load washer for use with a nut and bolt combination
IPC: F16B43/02
Filed: 1976-03-26
Abstract: 1493558 Applying predetermined tensions to bolts TEXTRON Inc 26 March 1976 12187/76 Heading F2H To enable a predetermined tension to be applied to a bolt 1, a collapsible cylindrical washer 3 is used under a nut 4 which is threaded on to the bolt, the washer having end flanges 5, 8 and a cylindrical barrel with a length between four and five times its wall thickness, such that at said predetermined load, the barrel progressively collapses axially while plastically deforming radially outwardly. The bottom end flange 8 may be as shown in Fig. 6, or may extend only outwardly, Fig. 7, or inwardly, Fig. 12 of the barrel. The nut 4 has a shoulder 7 which bears on the upper end 5 of the washer, and a frusto-conical lower portion 14 to improve load distribution along the threaded bore 15. In Fig. 7, the washer is made integral with the nut.
Patent GB-787629-A (GB)
Title: Improvements in or relating to raking devices
IPC: A01D78/00
Filed: 1954-10-29
Abstract: The subject-matter of this Specification is identical with that of Specification 787,625 but the claims differ.  Specifications 787,626, 787,627 and 787,628 also are referred to.
Patent GB-431734-A (GB)
Title: Improvements in folding ladders
IPC: E06C1/32
Filed: 1934-04-24
Abstract: 431,734. Ladders. JONES, C. A., Bohanam House, Barnwood Road, Gloucester. April 24, 1934, No. 12262. [Class 20 (ii)] A convertible long and step ladder comprises two hinged ladder portions a, b, and a truss frame, the bracing members of which a<1>, b<1>, are rigid and are pivoted to the ladder sides and to each other by means of short connecting links c<1> to which are fixed the strut members d. When the ladder is extended, a bolt d<2> on each strut member passes through registering slots provided in the ends of the ladder portions, and a hinged slotted plate e forms an abutment for the nut d<3> of each bolt. The truss frame may project above the upper ends of the ladder sides instead of between them.
Patent GB-1260301-A (GB)
Title: Improvements in or relating to hydrostatic extrusion
Inventor: THOMPSON PETER JOHN
IPC: B21C23/00
Filed: 1968-03-13
Abstract: 1,260,301. Extruding; drawing. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 4 March, 1969 [13 March, 1968], No. 12305/68. Heading B3P. A hydrostatic extrusion apparatus for tube extrusion has a seal 15 to prevent fluid entering between the bore 13 of a tubular billet 12 and the mandrel 8 during initial pressure build-up until the leading end of the billet has been pinched on to the mandrel by the die 3, whereafter the seal becomes ineffective. The seal 15 is slidably mounted on the mandrel and has a dished front face 23 forced on to the rear of the billet by a spring 21 and the fluid pressure. The billet has a reduced diameter forward portion 26 which is extruded by the fluid pressure alone. The seal engages the billet until the pressure is sufficient to cause it to collapse and grip the mandrel. The initial extrusion 27 is gripped by a drawing device so that the larger part of the billet is extruded by the combined effect of the fluid pressure and the drawing de vice.
Patent GB-1272737-A (GB)
Title: Copper base alloy
IPC: C22C9/04
Filed: 1970-03-13
Abstract: 1,272,737. Copper base alloy. AMERICAN SMELTING & REFINING CO. March 13, 1970, No. 12317/70. Headings C7A and C7D. An alloy consists of in per cent by weight: - Al 1-1À5 Mn 17-22 Zn 17-22 Cu 58-60À5 Alternatively the alloy may consist of: Al 1-1À5 Mn 17-22 Zn 17-22 Ni 3-6 Cu balance, provided that Cu + Ni is from 59-61À5. The alloys have good yield strength and ductility, and a silvery appearance especially when polished. The liquidus temperature may be below 1850‹ C. The minimum tensile strength, yield strength and elongation may be respectively 60, 000 psi 30, 000 psi and 20% in 2 inches. The alloy may be prepared by melting the copper (with the nickel where included), adding manganese, adding borax to remove surface oxide, adding the zinc and finally the aluminium in small pieces without stirring. A clay-graphite on silicon carbide crucible may be used.
Patent GB-166754-A (GB)
Title: Improvements in or relating to collapsible taps
IPC: B23G5/12
Filed: 1920-05-04
Abstract: 166,754. Gates, W. H. May 4, 1920. Taps. - In collapsable taps, the positively expanded and contracted chasers are provided with cam-grooves which are engaged by longitudinal cam rods controlled by an axially sliding shell. The cam-rods 9, Fig. 3, slide in semicircular recesses in the shank 1, and are engaged at notches 17 by the flange 16, Fig. 5, of the shell 6 which, for the cutting action, is locked to the body 4 by a trip-lever 21 and adjustable locking-bolt 19, Fig. 8. The trip-lever is tripped by a pointed pin 29 carried in one of two spring-pressed blocks 26, 27 to which the thread-determining sleeve 5, Fig. 5, is adjustably secured, and so permits the springe 33 to slide the shell 6, thereby closing the chasers. Releasing and stop devices. - A stop may be arranged on the machine frame to engage the shell 6 to reset the tap.
Patent GB-277902-A (GB)
Title: Gradient measuring device
IPC: G01B3/04
Filed: 1927-05-09
Abstract: 277,902. Withers, J. S., (Modern Utilities Co.). May 9, 1927. Clinometers.-A device for measuring gradients, particularly in structural work, comprises a base 1 of inverted T cross-section provided with an inclined slot 4 in its upright part, and a level-carrying bar 2 attached by a pivot 3 to the base and provided with a horizontal slot 5. For angular adjustment of the bar relatively to the base there is provided a bolt 9, the plain part of which passes through both slots and can be moved along them. The bolt can be clamped by a nut 13 and is provided with a pointer 10 reading against a scale of gradients marked on the bar 2. A spirit-level 23 is carried by a plate 21 provided with a projection 19 passing into a socket 18 on the bar 2 and adapted to be secured therein by a screw 20. The bottom wall 24 of the plate 21 rests on the upper edge of the bar 2. For plumbing purposes the level is removed from the socket 18 and inserted in a similar socket 27 in an extension 25 on the base. In a modification, two fixed levels are provided instead of the detachable level described above.
Patent GB-125144-A (GB)
IPC: G08B5/00
Abstract: 125,144. Sharman, A. W. June 14, 1916. Lamp, electric-lamp, and flash-signals.-Relates to optical signalling in which intermittent or pulsating light is employed, the rapidity of the intermittent action being such that the light appears to be unbroken to the unaided eye. The signalling-elements are produced by a change in the periodicity of the pulsations, and the received light is analysed by a device, preferably a rotating lens, which spreads the image of the light source so that the pulsations are spatially separated. Fig. 3 shows one arrangement in which a rapidly rotating shutter B, which may be opaque or translucent and has four arms b, is adapted to be moved, as by a Morse signalling-key, in the direction of the arrow x so as to cut off the light from a lamp A. A compensator consisting of a comb D, gauge, or the like may be provided for giving a beam apparently constant. In a modification, two arms are shorter than the other two. Fig. 6 shows a suitable analyser consisting of a lens E arranged to rotate, being mounted in a ring e and operated by a motor e<3>. Fig 4 shows an arrangement in which the interruptions are obtained by a Duddell are. The arc lamp A is in the generator circuit a and in shunt is an oscillating circuit B<1> in which is a key b<5>, capacity b<6>, and inductance b<7>. Fig. 5 shows another arrangement, the key closing a branch circuit The receiver may, instead of a lens, consist of a mirror, prism, &c.
Patent GB-780652-A (GB)
Title: Improvements in or relating to apparatus for use in spinal fixation
IPC: A61B17/70
Filed: 1954-04-30
Abstract: 780,652. Spinal fixation apparatus. ZIMMER ORTHOPAEDIC, Ltd., and EVANS, T. P. June 23, 1955 [April 30, 1954], No. 12536/54. Class 81 (2). Spinal fixation apparatus comprises two elongated strips each with at least one longitudinal slot, clamping means that can be entered in the slots for cramping the strips towards one another and means for preventing relative movement between the strips when they are cramped towards one another. Elongated strips 1, 2 each having longitudinal slots 3, 4 and a serrated or knurled face 5 are clamped along both sides of the spinous processes of the vertebrµ by bolts 6 having washers 9 and holding nuts 10, the bolts 6 passing through holes made in the spinous processes. The washers 9 and nuts 10 have serrated or knurled surfaces which co-operate with the serrated. or knurled faces 5 of the strips 1, 2. The strips 1, 2, bolts 6, washers 9 and nuts 10 may be made of stainless steel.
Patent GB-878966-A (GB)
Title: Method of operating a rectifier to regulate the reflux ratio
IPC: B01D1/00
Filed: 1960-04-08
Abstract: <PICT:0878966/III/1> In a rectifier of the kind having a boiling dephlegmator to effect the reflux and regulate the reflux ratio the concentration of the product is maintained constant by adjusting the receiver pressure to a constant datum value which, taking into account the flow resistance between the head part of the rectifier and the receiver, is smaller than the vapour pressure of the desired product but at least as great as the vapour pressure of the less volatile component or components of the mixture to be rectified, in the head part of the rectifier.  Flow resistance may be determined by an adjustable throttle valve between the head part and the receiver or by withdrawal capillaries or a withdrawal pipe between the head part and the receiver.  In the Figure a rectifier operable under sub- or super-atmospheric pressure consists of a column 1, a vaporizing vessel 2, one or more vertical tubes 5 ending with capillaries 7 at the head of the columns, a boiling dephlegmator 6, a heating device 4 around the top of the head of the column, a condenser 8 for the product, a receiver 9, and a pressure regulator 10 for maintaining pressure in the receiver at a constant datum value.  This pressure is adjusted by a pump, e.g. a water jet pump, connected to a pipe 10a, the pressure acting inside a bellows 10d while the actual receiver pressure is supplied by a pump (not shown) connected at 10f.  If the actual pressure becomes greater than the datum pressure the bellows are compressed and a valve 10g is thereby opened to release the excess pressure in the receiver.  If the actual pressure becomes smaller than the datum pressure air can be introduced into the system through a capillary 10h until the pressures are equalized.  A condenser 17 is connected to the boiling dephlegmator 6, the cooling surfaces of the latter being maintained at a constant temperature by employing as coolant a boiling liquid.  A pressure regulator 18, similar to the regulator 10, facilitates adjustment of the boiling point of the coolant to any desired value.  The removal of the more volatile components through the capillaries 7 is assisted by slightly superheating the capillaries relative to the dephlegmator 6 to free them from condensed vapour.
Patent GB-1026345-A (GB)
Title: Improvements in gaskets for waveguide joints
Inventor: WARD ALAN WILLIAM
IPC: H01P1/04
Filed: 1962-04-03
Abstract: 1,026,345. Waveguide joints. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 20, 1963 [April 3, 1962], No. 12787/62. Heading H1W. [Also in Division F2] A shim 7 for insertion between the flanges of waveguide sections 1, 3 is made of thin metal and is provided with a shallow groove 7B near and extending wholly around the central aperture. The latter may be of rectangular, oval or circular shape. The shim is made of conductive, ductile metal, e.g. copper, so that when flange bolts 5 are tightened the grooved portion of the shim is flattened and the inner edge brought into near coincidence with the inner surfaces of the two waveguides.
Patent GB-1284805-A (GB)
Title: Retortable food package
Inventor: THOMKA LADDIE MAX
IPC: B65D65/40
Filed: 1970-03-17
Abstract: 1284805 Laminated products DOW CHEMICAL CO 17 March 1970 12827/70 Heading B5N [Also in Division B8] A retortable food package comprising a generally rigid cup-shaped container 110, substantially filled with a food product such as corned beef hash, sausages, chili, &c., is characterized by having at least its side and bottom walls of a multi-layered thermoplastics construction consisting of at least three basic layers 40, 42, 44 two of the outer layers 40, 44 comprising a tough body-supporting olefin plastics and the core layer 42 consisting of a plastics having high barrier properties to gas and moisture. As shown, the container 110 has its side 116 and bottom walls 120 formed of two outer layers 40, 44 made of polyethylene and a core layer 42 comprising 96 parts by weight of a copolymer 3 parts by weight of a different copolymer, and 1 part by weight of tetrasodium pyrophosphate. Glue layers 46 consist of an ethylene-vinyl acetate. A five layer laminate is prepared by co-extrusion of the outer layers of polyethylene having a melt index of 6À0 and a thickness of 0À37 mm. the core layer being 0À16 mm., and the glue layers 0À06 mm., thick. The moisture transmission rate of the laminate is stated to be 0À0013 grams/100 sq. inch in 24 hours the oxygen transmission rate being 0À025 cc./100 sq. inch. Other examples are described in which the outer layers and cores have different thicknesses and moisture and oxygen transmission rates. Particularly suited as gas barrier layers are combinations of vinylidene chloride polymers, vinyl chloride polymers, vinylidene fluoride polymers, and extrudable mixtures thereof. The container can be closed by a metal lid 114 having an adhering plastics film 115 which is adapted to be heat sealed to the flat rim of the container. A container (210), Fig. 3 (not shown), formed from a sheet 50, Fig. 2, is capped by a sealingly crimped metal lid 214. The outside layer can be coloured.
Patent GB-1015146-A (GB)
Title: Improved lens system
Inventor: SMITH FRANCIS HUGHES
IPC: G02B9/04
Filed: 1963-04-01
Abstract: 1,015,146. Lenses. VICKERS INSTRUMENTS Ltd. Mar 31, 1964 [April 1, 1963], No. 12904/63. Heading G2J. To correct the secondary chromatic aberration of an achromatic lens, not shown, which may be a conventional achromatic objective or one having fluorite therein which has less secondary chromatic aberration than glass systems, four lenses are employed I and III being negative and II and IV being positive. As shown lenses I and II of glass form a cemented doublet which is substantially free of primary chromatic aberration but the E-F relative partial dispersion values are such that the doublet has secondary chromatic aberration which tends to compensate for that of the achromatic lens. Since such a doublet has a considerable negative power, dioptric compensation is provided by the other two lenses III, IV, which as shown form a positive doublet which is substantially free from primary chromatic aberration and the E-F relative partial dispersion values are such that the secondary chromatic aberration enhances that of the first doublet or at least only reduces it by a very small amount. Lens IV may be of fluorite and lens III of glass having the same relative partial dispersion value as fluorite, the doublet being apochromatic. In a modification the three glass elements form a cemented triplet.
Patent GB-313043-A (GB)
Title: Improvements in compositions for and methods of rendering fibres insect proof
IPC: A01N41/04
Filed: 1929-04-26
Abstract: 313,043. Ritter, R. M. June 5, 1928, [Convention date]. Proofing against vermin.-Filbrous materials are made proof against moth by treatment with preparations containing alkyl derivatives of a naphthalene mono- or poly-sulphonate or sulphonic acid. Salts of chromium, aluminium, zinc, titanium &c. may be added, and the materials may be used in aqueous solution or in dry-cleaning solvents such as hydrocarbons, benzene, naphtha, alcohol acetone &c. The preparation may be applied during dyeing or other processes. Examples are : 10 lbs. of butylnaphthalene sulphonic acid and 4 lbs. of aluminium sulphate dissolved in 100 gallons of water, the material being treated for 15 minutes at 120‹ F. 10 1bs. of neutralized amyl naphthalene sulphonic acid dissolved in 100 gallons of petroleum naphtha may be used, and the material treated for 10 minutes. 8 lbs. of neutralized propyl naphthalene sulphonic acid and 2 1bs. of benzine soap dissolved in 100 gallons of benzene; and 7 parts of neutralized amyl naphthalene sulphonic acid and 3 parts of oleic acid in 1¢ per cent benzene solution are also specified. The Specification as open to inspection under Sect. 91 (3) (a) states that other insect-repelling substances such as sodium fluoride or silicofluoride may be added to the composition, and gives examples including these substances. This subject-matter does not appear in the Specification as accepted.