baber/WOPTO huggingface dataset:
Patent GB-822387-A (GB)
Title: Improvements in fastening devices for heat insulation linings
Inventor: JENKINS JOHN HINES
IPC: E04F13/08
Filed: 1957-04-23
Abstract: 822,387. Non-conducting coverings for heat. MILLER INSULATION & ENGINEERING Ltd. April 23, 1957, No. 12858/57. Class 64(2) [Also in Group XXV] A fastening device for linings such as metal sheets, wood or insulation board 10 for retaining insulation 14 on ship's refrigeration chambers, or linings for the insulation of oil tanks or buildings comprises an insulating pad or block 2 of low thermal conductivity, a clamp 3 for rigidly securing the pad to a frame member 1, a rail 8 adapted to be clamped to the pad, and a cover strap 11 adapted to be fitted to the rail 8 to retain in position the lining 10 interposed between the strap and the rail, the rail 8 being of channel section and being formed with. substantially coplanar joggled flanges 9 for engagement with channelled recesses in a clamping plate 9a secured to the face of the pad or block remote from the frame member. As shown, a sealing strip 13 is interposed between the strap 11 and the lining 10.
Patent GB-672093-A (GB)
Title: Improvements in or relating to diffraction cameras for x-ray examination of crystalline substances
IPC: G01N23/205
Filed: 1950-05-24
Abstract: 672,093. X-ray apparatus. PHILIPS ELECTRICAL INDUSTRIES, Ltd. May 24, 1950 [May 26, 1949], No. 12973/50. Class 98 (i). A diffraction camera for X-ray examination of crystalline substances, Fig. 1, comprising a cylindrical chamber 1, of which the wall is provided with diametrically opposite apertures 2, 3 to allow passage of an X-ray beam, and coaxial tubes 4, 5 of narrow cross-section in register with the apertures, and ending in the vicinity of a centrally-placed specimen 6, a film strip 7 for photographing diffraction images being provided on the circumference and clamped in position by means of a stop 8 fixed to the wall and a stop 9 movable along the wall, is characterized in that the film clamping means are positioned on the wall between the axis of the X-ray beam and a radius of the chamber which is perpendicular thereto. Preferably, the clamping means are positioned at an angle between 20 and 75 degrees with the X-ray beam. The film 7 has apertures 11, 12, Fig. 4, which register with apertures 2, 3 in the chamber 1, one of the apertures being formed at a distance between 0.2 and 0.055 times the length of the film from one end thereof. The apparatus is particularly useful when no strong backward diffraction of the X-rays takes place. Rings such as 17 then surround the aperture 12, while a wider ring 18 also appears in part at the other end, enabling the effective diameter of the film to be found.
Patent GB-454143-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/14
Filed: 1936-05-08
Abstract: 454,143. Wrenches. PETERSON, C. A., and PETERSON, E. G., Torsas, Sweden. May 8, 1936, No. 13024. [Class 61 (iii)] A worm adjustment wrench can be locked in adjusted position by a sliding latch 7 adapted to engage notches in the worm 5 and held in looking position by the end of a spring 12 engaging a notch 11 at the rear end of the latch.
Patent GB-1185305-A (GB)
Title: Process of Making Copolymers of Aromatic Olefines with a High Proportion of Acrylonitriles.
Inventor: HENDY BRIAN NORMAN
IPC: D01D5/42
Filed: 1966-03-24
Abstract: 1,185,305. Acrylonitrile-aromatic olefin copolymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 March, 1967 [24 March, 1966], No. 13070/66. Heading C3P. A copolymer of acrylonitrile and at least one aromatic olefin is obtained in a polymerization reaction mixture containing acrylonitrile and aromatic olefin while adding monomer feed containing aromatic olefin at a rate determined by the heat evolved by the polymerization, the copolymer produced having a molar ratio of units of acrylonitrile to aromatic olefin of between 2 and 6 and a reduced viscosity (measured on a 0À5% w/v solution in dimethylformamide at 25‹ C.) between 0À5 and 1À2 when the molar ratio is less than 4 and between 0À5 and 1À8 when the molar ratio is 4 or more. The aromatic olefin is selected from those of formula CH 2 =C(R)Ar wherein R is hydrogen or methyl and Ar is an optionally ring-substituted residue of aromatic character having not more than 3 rings and also acenaphthylene, indene and coumarone. Specified olefins are styrene, substituted styrenes, 1- vinylnaphthalene, 2-vinylthiophene, 3-vinylphenanthrene, 2-methyl-5-vinylpyridine and N-vinylcarbazole. In the examples, copolymers of acrylonitrile with styrene, or alphamethyl styrene, and terpolymers of acrylonitrile, styrene and cetyl vinyl ether, or N- vinylcarbazole, are prepared in aqueous media.
Patent GB-569748-A (GB)
Title: Improvements in dynamo-electric machines
IPC: H02K5/132
Filed: 1943-08-12
Abstract: 569,748. Commutators for dynamoelectric machines. SIGMUND. F., and HLAVIN, W. S. Aug. 12, 1943, No. 13101. [Class 35] Moulded insulation is applied to the windings of dynamo-electric machines so that they can be immersed in liquid and the commutator (or slip rings) with the brushes are disposed in a liquid-tight compartment. The commutator may be of the internal cylindrical or radial annular surface type. In the form shown, the stator and rotor windings are embedded in moulded insulation 19 and the internal commutator 37 is enclosed by the housing 34 mounted on the shaft and the cover 43. Air or gas under pressure is supplied to the commutator compartment through the duct 53 which serves also for the passage of the brush leads.
Patent GB-943635-A (GB)
Title: Improvements in or relating to coated abrasive belts
IPC: B24D11/06
Filed: 1960-04-13
Abstract: An abrasive coated belt comprising a cloth backing having substantially equal stretch in the direction of its cross and warp threads respectively and having a layer of abrasive grain bonded thereto, is produced by finishing a cloth web under approximately the minimum practical tension in the warp direction required for finishing, coating the finished cloth web with abrasive, cutting the web into sections and joining the sections together to form a sectional abrasive coated belt in which the warp threads of the sections are disposed at an angle to the running direction of the belt.  The sections may be prestretched in the cross direction, or in both the cross and warp directions so that the coated belt may have a maximum stretch in the cross direction of about 7%.  The backing may have substantially equal tensile strengths and equal residual stretch in the cross and warp directions or may have minimum finishing prestretch in the warp direction.  The cloth web may be finished under sufficient tension in the cross direction that the finished cloth has a maximum cross stretch of 10% and a minimum cross tensile strength of at least 130 lb./inch width so that the sectioned belt may have the same maximum strength and minimum tensile strength in the running direction.  The cloth web may be of a sateen, e.g. 5-harness sateen, jean or drill weave and may be resin-finished with, for example, an ethyl cellulose-modified phenolic resin.ALSO:A process for making a backing material for use in an abrasive coated belt comprises finishing a cloth web under approximately the minimum practical tension in the warp direction required for finishing, to provide a finished cloth web that has substantially equal stretch in the warp and cross directions.  The finished cloth web may have substantially equal strength in the warp and cross directions.  The web may be finished under tension in the cross direction e.g. by tentering, to provide a finished cloth web that is prestretched in both warp and cross directions and may have a maximum cross stretch of 10% and a minimum cross tensile strength of at least 130 lb/inch width.  The cloth web may be of a sateen e.g. 5-harness sateen, jean or drill weave and may be resin finished with, for example, an ethyl cellulose-modified phenolic resin.
Patent GB-991694-A (GB)
Title: A process for the manufacture of artificial pearls
IPC: A01K61/54
Filed: 1964-03-31
Abstract: A process for the manufacture of artificial pearls comprises preparing the nucleus of the pearls from animal organic material, said organic material being transparent, translucent or opaque and being submitted to a physical operation consisting of imparting to the material spherical, spheroidal or fusiform conformation with variable generatrix by suitable mechanical means, thus producing a body exteriorly asymmetric with perceptible irregularities such as pores, depressions, veins and the like, which are capable of providing the visual and tactile sensations pertaining to a cultivated pearl. The material used may be the shells of oysters or of land testacea. The nucleus so formed may be coated with one or more layers of oriental essence.
Patent GB-647302-A (GB)
Title: Improvements in or relating to linings for combustion chambers and the like
IPC: F23R3/00
Filed: 1948-05-14
Abstract: 647,302. Furnace walls. PEREGRINE, E. P., SUTHERLAND, W. R., BELL, G. R., and PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. May 14, 1948, No. 13316. [Classes 51 (i) and 51(ii)] ] Linings for the combustion chambers of gas turbines and boilers, parts of furnaces and hot air ducts comprise bricks 3 each formed with a recess 6 and each removably secured to a wall 2, leaving an air space 5 and also a clearance all round each brick, by means of a screw 8 coacting with a nut member 7 secured in said recess 6. Expansion between the metallic inset and the brick is allowed for by flexible tongues 9 formed with screw threads at 14 to which a thin layer of refractory cement is applied and the screws 8 are locked to securing strips 11 by tab washers 10. Modified nut members are formed at the base with either a conical disc seating in re-entrant grooves cut in the recesses or with flexible fingers embedded in refractory cement in said recesses, or instead of the flexible tongues 9 the lower wider part of said nut members is formed with axial holes with an axial annular projection at the base.
Patent GB-611570-A (GB)
Title: Method of and apparatus for compacting concrete or like materials
IPC: E04G21/08
Filed: 1946-05-02
Abstract: 611,570. Consolidating concrete &c. by vibration. PIERRE, B. A. May 2, 1946, No. 13377. [Class 86] Concrete or like material is compacted by immersing therein a needle of non- circular section which is given an oscillatory motion around its longitudinal axis, e.g. by an alternating couple transmitted by a vibrator. The needle may. have a cross section formed of portions of a particular curve which is described by an equation of polar co-ordinates having an origin on the axis of rotation of the needle. A blade 35, Fig. 6, is oscillated about its longitudinal axis by the centrifugal forces created by the rotation of eccentric masses 29, 30 and 31, 32 on shafts 27, 28, respectively, rotated in opposite directions at the same speed by a motor 21 through a flexible drive 22 and bevel gears 24, 25, 26. In an alternative construction eccentric weights 38, Fig. 8, are carried by shafts 36, 37, parallel to the axis of the vibrator needle. The shafts 36, 37 are rotated at the same speed in opposite directions by a drive shaft 34 and pinions 39, 40, 41, In a further alternative construction the vibrator needle 35, Fig. 10, is oscillated by pneumatic means comprising a pair of pistons operated in cylinders 58, 59 by compressed air supplied through a conduit 57. The pistons are moved simultaneously in opposite directions one piston serving as a slide valve controlling the air supply to the other.
Patent GB-1332382-A (GB)
Title: Device operable to function as a humidifier or nebulizer
IPC: A61M16/16
Filed: 1971-05-06
Abstract: 1332382 Valves HUDSON OXYGEN THERAPY CO 6 May 1971 [10 June 1970] 13408/71 Heading F2V [Also in Divisions A5 B1 and B2] A device which may be adjusted to function as either a humidifier or an atomizer comprises a chamber 14, Fig. 4, a valve housing 25, an upper conduit 17 and a lower conduit 15 each of which communicates with a cavity (54) formed in the valve housing, the lower conduit also communicating with the chamber 14, and a valve spool 32 received in the cavity (54) to define with the housing a valve chamber 56. The valve chamber 56, Fig. 8, communicating with the chamber 14 through an orifice 22. When the device is used as a humidifier the valve spool is positioned to align passageways 36, 39 with the upper and lower conduits to allow air or oxygen to pass from the upper conduit to the lower conduit through the water in the chamber 14, and to a patient through a gas outlet tube (16). When the device is used as an atomizer a passageway 38 of the valve spool is aligned with the upper conduit 17 so that gas can pass from the upper conduit to the valve chamber through an orifice 35, and water can pass from the lower conduit to the valve chamber through a groove 34, the velocity of the gas through the orifice creating a vacuum in the valve chamber which draws the water into the chamber, and causing the water to break up into droplets to form an aerosol, which passes through the orifice 22 and outlet tube (16) to a patient. A baffle 80 may aid droplet formation and its position may be varied to achieve different particle sizes and dispersions. A diffuser 78 at the lower end of the lower conduit also acts as a filter. In other embodiments (Figs. 9 and 10, not shown) the upper and lower conduits communicate with a bore (66), and an L-shaped bore (68) provides communication between the upper conduit and the valve chamber, or the valve chamber may be formed as part of a groove (44). A relief valve (Fig. 12, not shown) incorporating a flexible disc (82) secured at its centre may be used. The liquid level should be below orifice 22 and above conduit 15. The device may be made from plastics material, and the walls of the chamber 14 may be clear.
Patent GB-366378-A (GB)
Title: Improvements in fire alarm systems
IPC: G08B29/16
Filed: 1931-05-06
Abstract: 366,378. Fire-alarm systems. TELEFONAKTIEBOLAGET L. M. ERICSSON, 33, Kungsgatan, Stockholm.-(Assignees of Ekman, O. I. H. ; 64, Malmskillnadsgatan, Stockholm.) May 6, 1931, No. 13415. Convention date, May 7, 1930. [Class 40 (i).] A fire-alarm system comprises a number of multi-conductor loops connected in series and with thermostats T in each conductor of each loop, and the alarm device is associated with circuits which differentiate between fire conditions (all conductors of a loop broken) and faults which may comprise short-circuits between conductors or breakage of one or some but not all the conductors, or, if desired, the grounding of a conductor. As shown, two loops I, II each have two conductors normally short-circuiting the windings of relays SRI, SRII. The conductors a of each loop are connected in series with battery over relay Ra and low resistance Ma, while conductors bare connected in series over relay Rb and high resistance Mb. The alarm box magnet BM is normally inert in a circuit including contacts k3 operated by clockwork, and a high resistance relay BRR the operation of which serves to indicate that the magnet circuit is in order. In case of fire say in loop I, the short-circuits around the windings of SRI are removed, lamp SLI lights and Ra, Rb both release to shortcircuit BRR so that alarm BM operates. If one conductor only is broken, Ra or Rb releases to energize fault relay FR and SRI or SRII operates over one winding to light the loop lamp. If there is a short between the two conductors, Ra which is in parallel with high resistance Mb remains energized but Rb falls back and energizes the fault relay FR but the loop lamps do not light since both windings of SRI, SRII are still short-circuited by the loops. Ra, Rb short-circuit themselves on release. In a modification, the double wound loop relays SRI, SRII are replaced by separate relays, and a fault relay is provided for each conductor. The operation of a loop relay completes a circuit for the conductor fault relay in series with one or other of two lamps indicating the loop. An additional circuit for BM is also closed over contacts of the two loop relays of either loop. In a modification of the last mentioned arrangement, the loop relays are normally disconnected but are connected up by the corresponding fault relay when operated by Ra or Rb. The series connected normally open contacts k1, k2 controlling the alarm BM may be replaced by parallel normally closed contacts which, when a fire occurs, open the circuit of an additional relay the relapse of which operates the alarm BM.
Patent GB-389304-A (GB)
Title: Improvements in endless track bands or chains for the wheels of heavy motor vehicles, lorries and the like
IPC: B62D55/28
Filed: 1932-05-10
Abstract: 389,304. Endless tracks for vehicles. ANSALDO SOC. ANON., Cornigliano, Genoa, Italy. May 10, 1932, No. 13420. Convention date, Sept. 23, 1931. [Class 79 (i).] In an endless track having main and auxiliary links, each main link is provided with two openings, as shown, or two projections, for a hinge joint, two guiding fins 3, 4 for load-carrying rollers, and metal or metal and rubber tread members 7, and each auxiliary link is provided with two projections (or two openings) for the hinge joint and with guiding fins 11 for the rollers. In the construction shown the main link has hinge lugs 1, 2 and is formed with a rectangular frame 5 in which a metal plate 6 bonded at 9 to a rubber tread member 7 is secured by two bolts 8. The edge of the frame 5 protects the joint between the metal and the rubber. The auxiliary link comprises a pair of members each having a pair of hinge lugs projecting into the adjoining main links, a pyramidal guiding projection 11 and a side lug 12 which bridges the gap between the main lugs and forms part of the roller path. Three spaces 13, 14, 15 are formed between each pair of main links and are adapted to be engaged by sprocket teeth, so that a driving sprocket with central teeth or with side teeth may be used. In a modification, instead of the frame 5, plate 6 and rubber tread 7, each main link is formed with a single metal rib for engaging the ground.
Patent GB-669584-A (GB)
Title: Improvements in or relating to radiation-emitting screens
IPC: H01J29/38
Filed: 1949-05-19
Abstract: 669,584. Glass compositions. WESTING- HOUSE ELECTRIC INTERNATIONAL CO.. May 19, 1949 [June 19, 1948,]; No. 13441/49. Drawings to Specification. Class 56., [Also in Group XL (a)] A glass for a fluorescent screen .(see Group XL (a)) consists of .K 2 O, ,ZnO, B 2 O 3  having im purities less than 0.001 per cent. The proportions may be 0-40 per cent K 2 O, 0-60 per cent ZnO and 100-40 per cent B 2 O 3 , a mixture: of 31 per cent K 2 O and 69 per cent B 2 O 3 , being particularly satisfactory. The constituents are fused in. a platinum crucible at 1000 C. and poured into an aluminium mould.
Patent GB-134645-A (GB)
IPC: A47J41/00
Abstract: 134,645. Davis, R. H. Nov. 22, 1918. Non-conducting coverings for heat. - Glass metal or other containers for liquids are coated with a thick layer of india-rubber vulcanized thereon, over which is applied a layer of infusorial earth, graphite, or other non-conductor. Or the rubber may be applied over the non-conductor. An outer protective casing of metal or the like is preferably also employed. More than one layer of each material may be applied, the layers being alternated. A double-walled container may have the space between the walls filled with the infusorial earth or the like, the outer wall being covered with india-rubber. The insulation may also be applied to the outer wall of vacuumjacketed vessels, in which case a lower degree of evacuation than usual will suffice.
Patent GB-399911-A (GB)
Title: Improvements in two-stroke internal combustion engines
IPC: F02B25/00
Filed: 1932-05-10
Abstract: 399,911. Two-stroke oil engines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and MELLOR, G. A., Skerries, Welling, Kent. May 10, 1932, No. 13466. [Classes 7 (ii) and 7 (iii).] In a two-stroke engine in which the inlet and exhaust ports 12, 9 are in separate parallel cylinders having a common clearance space 11, the pistons are shaped to correspond with a domed cylinder head and the space 11 is restricted to a spherical or cylindrical cavity. The fuel-nozzle is located at a point where the speed of flow of the cooling fluid is increased bv reduction of its passage-area. Hot spots are constituted by tips 13 of the pistons, the functions of which may be interchanged. They are connected to separate crank shafts geared together. Specifications 220,418, and 237,990 [both in Class 7 (ii), Internal-combustion engines, Arrangement &c. of], are referred to.
Patent GB-1123944-A (GB)
Title: Fuel compositions with a depressed pour point
Inventor: MEIJ PIETER HENDRIKUS VAN DER
IPC: C08L25/16
Filed: 1967-03-22
Abstract: Polymers which may be considered to have been obtained by the polymerization of monoolefinically unsaturated compounds consisting at least partly of monovinyl unsaturated aromatic compounds having an unbranched saturated hydrocarbon chain of at least 18 carbon atoms (such chains being referred to as long hydrocarbon chains) are added to a wax-containing distillate fuel consisting at least partly of a heavy distillate obtained in the distillation at reduced pressure of an atmospheric distillation residue and containing waxes at least a proportion of which have a melting point above 35 DEG  C. and a boiling point above 350 DEG  C.  The polymers generally have an average molecular weight of 1,000-1,000,000 and when added in an amount of 0.001-2.0% by weight are effective in depressing the pour point of the fuel. Suitable polymers have a main chain of carbon atoms which carries at least one long hydrocarbon side chain attached to the main chain either directly or indirectly via one or more other atoms, such as carbon, oxygen, sulphur, nitrogen and phosphorus atoms. Polymers in which this side chain is indirectly attached to the main chain via at least two carbon atoms forming part of an aromatic ring system are preferred.  The polymers may be prepared by (a) polymerizing mono-olefinically unsaturated compounds which at least partly consist of monovinyl aromatic compounds having a long hydrocarbon chain such as alkylstyrenes, acylstyrenes, hydroxyalkylstyrenes, alkylcarboxystyrenes, alkyloxystyrenes, alkylamidostyrenes, alkylvinylnaphthalenes and acylivinylnaphthalenes and may be homopolymers or copolymers prepared by copolymerizing vinyl aromatic compounds, vinyl esters of saturated monocarboxylic acids, alkyl esters of unsaturated mono- and dicarboxylic acids, alkyl vinyl ethers and mono-olefins with the aforesaid long hydrocarbon chain compounds; or (b) polymerizing mono-olefinically unsaturated compounds, which at least partly consist of monovinyl aromatic compounds but which, however, have no long hydrocarbon chains, and subsequently introducing long hydrocarbon side chains into the polymer, which may be, for example, a homo- or copolymer of styrene or of a substituted styrene, by, for example, alkylation or acylation. Polar groups may be incorporated in the polymer by adding monomers containing, for example, hydroxyl, carboxyl, acid-anhydride, or nitrogen-containing groups, to the polymerization reaction to give the polymer a dispersant effect.