baber/WOPTO huggingface dataset:
Patent GB-1499069-A (GB)
Title: Process for isolating naphthoquinone and phthalic anhydride from the reaction gases of the gas phase oxidation of naphthalene
IPC: C07D307/89
Filed: 1976-07-16
Abstract: 1499069 Separation of naphthoquinone and phthalic anhydride from oxidation gases BAYER AG 16 July 1976 [19 July 1975] 29725/76 Heading C2C Naphthoquinone and phthalic anhydride are separated from the gases obtained from the oxidation of naphthalene by passing such gases at 250-500 C. and under pressure into a counter-current quencher; taking off a liquid which contains naphthalene, naphthoquinone and phthalic anhydride at less than 200 C. from the sump of the quencher; withdrawing a part of this liquid and returning the remainder via a cooler to the top of the quencher, the cooler being operated with a liquid coolant having a temperature which differs from that of the liquid to be cooled by at most 70 C.; taking off a gas, which still contains only small amounts of naphthalene, naphthoquinone and phthalic anhydride, from the top of the quencher at less than 150 C.; washing this gas with naphthalene in a scrubber; taking off naphthalene, which may contain small amounts of naphthoquinone and phthalic anhydride, from the bottom of the scrubber; feeding a minor proportion of this solution into the quencher; returning the major proportion via a cooler into the scrubber; and taking off gas which is virtually free from naphthoquinone and phthalic anhydride from the top of the scrubber. The partial stream withdrawn from the quencher may be worked up to give pure naphthoquinone and pure phthalic anhydride or may be used directly for reaction with butadiene in the preparation of tetrahydroanthraquinone. The cooled quenching liquid recycled to the quencher may be distributed therein by means of a rotary distributer, nozzle or nozzles or may impinge on a dispersion cone. The containers, coolers, tubes and connecting pipes of the quenching system may be of stainless steel which may have been mechanically polished or coated with plastics, enamel, ceramics or metal. In the examples, the reaction gas fed to the quencher comprises mainly N 2  together with relatively minor amounts of O 2 , H 2 O, CO 2 , naphthalene, naphthoquinone (1-2% by weight) and phthalic anhydride (1-2%).
Patent GB-1474167-A (GB)
Title: Electric cable joints and terminations
IPC: B29C61/06
Filed: 1973-06-22
Abstract: 1474167 Cable joints and terminations BICC Ltd 21 June 1974 [22 June 1973] 29734/73 Heading H2E The subject-matter, namely, a method of jointing or terminating an electric cable having at least one conductor surrounded by a dielectric and joints and terminations produced by that method, is generally the same as that of Specification 1,473,499 except that the vulcanizable layer (9) and separate polyethylene tape (10) of that Specification are replaced by a coated tape 18 comprising a polyethylene base 19 coated at least on the side nearer the conductor 2 by vulcanizable ethylene-propylene elastomer 20. In addition the outer layer of heat-shrinkable tape forming a replacement screen 11 may be semi-conducting ethylene-propylene elastomer of semi-conducting polyethylene with a coating of the elastomer.
Patent GB-297692-A (GB)
Abstract: 297,692. Dehn, F. B., (Newport Co.). April 25, 1927. Indanthrone is obtained in a pure state by dehalogenizing halogenindanthrones, particularly dibromindanthrone, which may be obtaired by condensation of 1 : 3 - dibrom - 2 - aminoanthraquinone. As dehalogenizing agents are specified alcoholic potash, sodium amalgam, glucose and caustic alkali, and copper, with or without a dissolving or diluting agent and with or without a catalyst. According to an example dibromindanthrone is boiled with alcoholic alkali.
Patent GB-1492496-A (GB)
Title: Kites
IPC: B64C31/06
Filed: 1975-07-16
Abstract: 1492496 Kites PETER POWELL KITES Ltd 12 July 1976 [16 July 1975 6 March 1976] 29844/75 Heading A6S A kite has a tubular inflatable tail 25. As shown, the tail 25 has its open front end reinforced by adhesive tape 26 and is attached to the main axial spar 11 of the kite. The remote end of the tail 25 is closed. The kite is generally similar to that of Specification 1438197 but has a lateral spar consisting of two plastics rods 12 extending between brackets 13, 16. The rear end of the main spar 11 is fitted into a transverse bar (21), Fig. 1 (not shown), bonded, &c. to the kite sheeting. The plastics may be glass-fibre reinforced polyester resin. Several of the kites, each having streamers, may be interconnected to fly in unison.
Patent GB-519475-A (GB)
Title: Improvements in and relating to drilling tools
IPC: B23B51/10
Filed: 1938-10-18
Abstract: 519,475. Drills. FORSYTH, T. A. Oct. 18, 1938, No. 30102. [Class 83 (iii)] In a drill, particularly for drilling long holes, of the kind haying a stepped side or sides which are grooved to form cutting edges, the stepped faces 10 are cambered as at 11, towards their outer ends. The faces 4 of the steps are undercut and the leading edges 5, Fig. 4, are on a larger diameter than the trailing edges 6. The angle at the apex of the drill may be almost 50 degrees and the sides are grooved at 7 to provide cutting edges. The steps 10 &c. which are not symmetrical on opposite sides of the drill, slope downwardly and outwardly towards the base of the drill and the end faces may have unsymmetrical grooves 13. The side faces are parallel except near the apex where they converge as shown in Fig. 4. A drill 1 may be secured in a shank 14, as shown in Fig. 1, or additional side cutters 16, 17 may be attached by screws 18 as shown in Fig. 4, and in each case guides 15 are attached to the shank to engage the drilled hole. Specification 133,494, [Class 80 (iii)], is referred to.
Patent GB-523952-A (GB)
Title: Improvements in or relating to printing structures and methods of printing or mounting printing elements
IPC: B41M9/00
Filed: 1938-10-18
Abstract: 523.952. Printing surfaces; impression surfaces; make-ready arrangements. STEVENS, A. H. (Frazier - Processes, Inc.). Oct. 18, 1938, No. 30123. [Class 100 (ii)] A relief printing plate having areas requiring different printing pressures to give auniform print, e.g.. type and half tone blocks, is mounted on a resilient backing selected areas of which are rendered less resilient than others during printing by the provision of additional backing means at those areas or by a differential vulcanization of the backing. In one form, Fig. 1, a plate comprising half tone matter 15. and type matter 16 is mounted on a resilient, e.g., rubber, backing 12 having closely spaced integral projections 14 and between the plate and backing a sheet of paper 19 extends throughout the whole area of the plate and a further sheet of paper 18 is placed under the, half tone area. The various layers of the structure, which may include a fabric backing 13 for the backing 12, may be cemented together and secured to a wooden mounting block 10 by cement or by nails or screws 20 which permit slight vertical movement of the plate upon them. Or the composite structure may be mounted on a metal base having closely arranged holes into which at selected areas metal plugs may be inserted to back more firmly the corresponding areas of the plate. In the form shown in Fig. 13, a thin metal shell 61, e.g., an electrotype, is provided with a backing layer 63 of vulcanizable material, e.g., a rubber sheet, a sprayed or painted layer of latex, or a layer of a mixture of latex and a flour of lead with tin, zinc or antimony. This layer is vulcanized differentially so that those areas requiring greater printing pressure are harder than the others. This may be effected by applying to the back of the layer an impression in an adhesive ink at the parts required to be harder, dusting the impression with sulphur and then vulcanizing; or the impression may be made in an ink comprising latex with an accelerator for the vulcanization process ; or the back of the layer may be exposed to heat rays through a suitable stencil to give a preliminary curing before the whole layer is vulcanized. The layer 63 may have a fabric layer 65 and a bottom layer 64 of metal or rubber which becomes hard and rigid upon vulcanization. The shell 61, prior to receiving the backing 63 may be coated with metal which fills the depressions in the back of the shell, the coating being shaved to render it smooth and flat, The printing structures may be used in flat condition or may be made thin and flexible for use on rotary machines. The impression cylinder employed with the structure has a resilient sheet supporting surface of less resiliency than that of the'backing of the printing plate and may consist of a cork surface with a sheet supporting surface of a phenol-formaldehyde condensation product.
Patent GB-1079042-A (GB)
Title: Improvements in or relating to sintering refractory materials
Inventor: HARRISON JOHN DAVID LAWRENCE
IPC: C04B35/51
Filed: 1964-07-29
Abstract: A high density nuclear fuel body of plutonium carbide, thorium carbide, or a mixture thereof, is produced by compacting a fine powder of the carbide in an inert gas atmosphere containing less than 20 p.p.m. each of oxygen and water vapour, and sintering the compacted body in an inert gas atmosphere containing less than 10 p.p.m. each of oxygen and water vapour.  Powder of particle size not exceeding 10 microns may be compacted into pellets in an argon atmosphere and sintered at a temperature not exceeding 1700 DEG C. also in argon.  Helium is referred to as an alternative inert gas. The carbide powder may be formed by milling in a ball mill in an inert gas atmosphere as used for compacting.ALSO:A high density nuclear fuel body of thorium carbide is produced by compacting a fine powder of the carbide in an inert gas atmosphere containing less than 20 p.p.m. each of oxygen and water vapour, and sintering the compacted body in an inert gas atmosphere containing less than 10 p.p.m. each of oxygen and water vapour.  Powder of particle size not exceeding 10 microns may be compacted into pellets in an argon atmosphere and sintered at a temperature not exceeding 1700 DEG  C. also in argon.  Helium is referred to as an alternative inert gas. The carbide powder may be formed by milling in a ball mill in an inert gas atmosphere as used for compacting.
Patent GB-1498391-A (GB)
Title: Child resistant safety closure assembly
IPC: B65D41/06
Filed: 1976-07-20
Abstract: 1498391 Bayonet-joint safety cap INTERNATIONAL TOOLS (1973) Ltd 20 July 1976 30151/76 Heading B8T A bayonet-joint cap 16 comprises a unitary plastics sealing member 24 which is held captive by, but is not directly connected to, the remainder of the cap. Member 24 has annular flanges 28 and 36, the former overlying bayonet locking elements 22, and a resilient portion 29, 30. In use on a container, Fig. 2 (not shown), member 24 is axially compressed with flange 28 overlying and in contact with the rim of the container and flange 36 sealingly projecting into and contacting the inner surface of the mouth of the container, the axial compression of member 24 ensuring effective sealing and forcing the co-operating bayonet locking elements on cap and container in engagement. To remove the cap downward axial pressure thereon is required followed by rotation and member 24 is removed from sealing engagement with the container by locking elements 22.
Patent GB-446011-A (GB)
Title: Apparatus for manipulating aircraft landing sails
IPC: B63B35/52
Filed: 1934-10-22
Abstract: 446,011. Bringing seaplanes on board. KRAFFT, E., and WEICHARDT, R., (trading as KRAFFT & WEICHARDT), 23, S÷gestrasse, Bremen, Germany. Oct. 22, 1934, No. 30230. Convention date, Aug. 27. [Class 115] In arrangements for bringing seaplanes on board by means of a landing rail a, the roller b on which the rail is wound is carried by a crane or gantry c mounted on a vertical pivot so that the whole device can be swung out when required. The sail is manipulated by the usual spar d which may either be hinged to the ship's side or in an adjustable fashion to the crane. A pair of gantries may be arranged on opposite sides of the ship and be connected by a turntable e which can be turned into line with a centrally disposed steerage track f for the seaplanes. The usual bridle and rope gear for manipulating the spar d is provided. The crane may be constructed to serve as an aircraft accelerating track.
Patent GB-210540-A (GB)
Title: Improved process for the mechanical production of cold
IPC: F25B1/00
Filed: 1922-11-04
Abstract: 210,540. Brõuer, K. Nov. 4, 1922. Refrigerating, special processes for. - The change of temperature of a liquid under change of pressure is utilized in a refrigerating system, the liquid being .continuously circulated while undergoing the following cycle : compression, cooling, and reduction of pressure without vaporization. The compressed cooled liquid may pass through a heat-interchanger in counter-current with the liquid at relatively low pressure. The apparatus comprises a piston pump, b, driven by a motor a and having valves in the cylinder head b<1> and distributing valves l, a cooler g for a receptacle r<1> for a medium such as brine to be cooled by a coil r connected to the low-pressure side of the system. On the upstroke of the piston 'liquid in the space d above the piston is compressed and delivered to the coil f in the cooler g and thence to the tubes h of the interchanger, returning through the pipe n and valve l to the space k below the piston. On the downstroke the, low-pressure liquid circulates from the space k below the piston through the valve l, pipe m, valve o, cooling-coil r, pipe s and the space around the tubes h to the pipe p and thence to the upper end of the cylinder. The interchanger i may be omitted when the cooling effect required in the coil r is insufficient to justify the intensive cooling action on the liquid agent. Suitable liquids are those whose specific heats at constant temperature vary with the pressure, of which liquid carbon dioxide circulating oetween pressures of about 200 atmospheres and 50 atmospheres is given as an example.
Patent GB-1141799-A (GB)
Title: Improvements in safety razors
IPC: B26B21/32
Filed: 1965-07-16
Abstract: 1,141,799. Razors. D. S. BURLEIGH. 13 July, 1966 [16 July, 1965 No. 30272/65. Heading B4B. In a safety razor consisting of a stem handle 1 with a shaving head comprising a platform 2, which may embody a serrated comb or guard at opposite sides, and a wafer blade 3 which has a slot to engage over a projecting bar 4 on the platform and is clamped on the platform by a clamping plate made in halves 5 pivoted by lugs 7 to the platform, the ends 6 of the halves 5 extend, both longitudinally and laterally, beyond their pivot lugs 7 sufficiently to mask the ends and corners of the blade at the ends of the shaving edges when the razor head is closed. The ends of the plate halves 5 are convexly curved in plan. The clamping plate may, alternatively, be in a single piece.
Patent GB-187478-A (GB)
Title: Improvements in or relating to foot arch supports
IPC: A43B7/14
Filed: 1921-11-14
Abstract: 187,478. Glover, A. E., Bewley, A. W., and Downing, M. Nov. 14, 1921. Foot-arch supports. -Relates to foot-arch supports of the kind comprising an adjustable spring-metal supporting plate formed with slits on its inner upturned edge and secured at its ends to a base plate, and consists essentially in an arrangement of the slits such that their inner ends follow a line which is of opposite curvature to that of the inner edge of the supporting plate. In the form shown in Fig. 2 a thin steel supporting plate b is formed with slits g and is secured to a base plate a by means of a rivet c at one end and bv means of a tongue e engaging one of severals slots d at the other end. A leather cover f is riveted to the plate b and a spike h is formed on the base plate to anchor the device in the boot. In modifications, the rivet c is replaced by an integral connection between the plates at one end or by the employment of tongue-and-slot connections at each end. Fig. 4 shows a form in which the plates are connected by a double-ended hooked plate k, and Fig. 5 shows a form in which the plate b is turned under at each end to form parts a, a<1> adjustably connected together to constitute a base plate.
Patent GB-1418688-A (GB)
Title: Mandrel
IPC: B21B25/00
Filed: 1972-12-18
Abstract: 1418688 Rolling tubes MANNESMANNROHREN-WERKE AG 18 Dec 1972 [17 Dec 1971 (2)] 30298/75 Divided out of 1418687 Heading B3M A mandrel for use in the mandrel changing apparatus of a tube rolling mill is formed as a hollow one-piece casting having a central portion 43 flanked by two end portions 41 and 42 with fiwsto-conical sections 44 and 45. The mandrel can be used in either direction since the end portions are substantially identical.
Patent GB-915761-A (GB)
Title: Hand percussion tool
IPC: B25B27/02
Filed: 1961-08-22
Abstract: 915,761. Extracting drills; hand-tool handles. FISCHER, A. Aug. 22, 1961 [Aug. 23, 1960], No. 30301/61. Class 61. In a holder for interchangeable bits for making plug holes, provided at one end with a bore 2 for accommodating a bit and having a bore 3 at right-angles to the bore 2 to serve as a guide for an ejector for removing the bit, the holder is provided with a covering 4 of resilient synthetic plastic material having a recess 10 for retaining the ejector. The holder has a steel striking piece 1, the covering 4 which forms a hand grip round the striking piece being injection-moulded on to the striking piece. The recess 10 has two transverse slots 6, 7 which permit ready deformation of the lips 8, 9 which are undercut to accommodate the ejector 5. The ejector is removable from its seating as by means of a screw-driver.
Patent GB-204570-A (GB)
Title: Improvements in and relating to garment hangers
IPC: A47G25/48
Filed: 1922-11-06
Abstract: 204,570. Sutton, E. S., and Ward, S. M. Nov. 6, 1922. Coat and like hangers.- Garment hangers more particularly of the type described in Specification 195,913, are made with one of the elements A invertible so that when in the position shown a coat may be hung on the part A and a skirt from the hooks 16 on the part B. By rotating the part A about pivots 19 the surface 12 may be used to hang the loops of a waist. The hook 23, which may be double, is capable of rotation about its central part 24 and retaining devices 26, 27 are provided to correspond to the two portions of the hook. In a modification, the skirt-supporting part comprises fastenings flexibly suspended by members passing through holes in the shoulder portions.
Patent GB-1079946-A (GB)
Title: Fm demodulator
Inventor: OGI MASAKA
IPC: H03D3/10
Filed: 1964-07-31
Abstract: 1,079,946. Frequency discriminators. FUJITSU Ltd. July 31, 1964, No. 30372/64. Heading H3A. FM input is applied to a quarter-wave line D terminated by a phase reversing transformer 13 of 1: 1 turns ratio. The output from the line D and from the phase reverser relative to the line input are both rectified by diodes 6, 7 and differentially combined to give a linear D.C. output at 3, 3<SP>1</SP> of magnitude and polarity indicating the instantaneous frequency deviation. The transformer may be replaced by a phase splitting valve or a transistor with collector and emitter outputs applied to the diodes. Further, the input to the other ends of the diodes may be applied through an emitter or cathode follower having an LF choke in the emitter or cathode circuit.
Patent GB-617680-A (GB)
Title: Improvements relating to electro-magnetic separators
IPC: B03C1/22
Filed: 1946-10-16
Abstract: 617,680. Motor control systems. ELECTROMAGNETS, Ltd., BOX, W. E., and CLARIDGE, J. T. Oct. 16, 1946, No. 30419/47. Divided out of 617,678, [Group II]. [Class 38 (iii)] [Also in Group II] An electromagnetic separator of the " overband " type such as described in Specification 617,678, is provided with electrical trip gear which is brought automatically into action to break the electrical circuit either temporarily or indefinitely in the event of jamming of the overband or of overloading of the driving motor. The circuit through the driving motor 9 incorporates a starter relay 24, step-by-step resistance type starting control 25, main contactor 26, overload relay control 31, jamming relay control 27 and accelerator relay control 28 of the dashpot type, all of usual construction. In the event the motor 9 stalls due to shortcircuit or overload such as may happen if a large piece of iron tends to clamp the overband between it and the electromagnets, the relay control 31 comes into operation to break the circuit through the coil of the starting relay 24, thus disconnecting the electromagnet coils 16a, 16b and also the motor 9 through their contactors 22, 23 and 26 respectively. The plant is now inoperative until the cause of overloading is removed. If complete jamming of the overband and motor should occur, the jamming relay control 27 comes into operation and cuts out both motor 9 and coils 16a, 16b, the relay also operating in conjunction with the accelerator relay 28 so that after the lapse of a predetermined time after cut out the motor and coils are again switched into circuit so that if the cause of jamming has been removed the separator functions again.
Patent GB-789598-A (GB)
Title: Improvements in or relating to temperature detecting arrangements more particularly fire detectors
Inventor: LOVEGROVE HENRY JOSEPH
IPC: G08B17/06
Filed: 1954-10-22
Abstract: 789,598. Fire extinguishing. SANGAMO WESTON, Ltd. Aug. 12, 1955 [Oct. 22, 1954], No. 30523/54. Class 47 [Also in Groups XXXVII and XXXVIII] An aircraft engine fire alarm and fire extinguisher operating circuit, Figs. 1 and 2, comprises thermo couples 10 having their cold junctions lagged so that the thermo couples respond to rates of temperature change, and a moving coil relay K energized by the thermo couples through resistances R\ R<SP>2</SP> and having a soft iron bob 12 on the end of its pointer 13, which pointer may be pulled in and held against vibration, when fire temperatures prevail, by permanent magnets 14 in circuit with a manually controlled re-set switch arm 19. The pointer 13 in the alarm position, as shown dotted in Fig. 2, lights a warning lamp 17 and energizes a trip circuit 21 in parallel with the lamp 17 across a battery 18, which trip circuit may initiate the discharge of a fire extinguisher and may also contain an audible warning device. A test button 22 when pressed applies the voltage of the battery 18 to the thermo couples 10, resistances R<SP>1</SP> and R<SP>3</SP>, and the coil 23 of the relay K. If the thermo couple circuit is open circuited then the pointer 13 will not move. A modified relay (see Group XXXVII) and Figs. 3, 4, (not shown), is also described, the trip circuit either operating the extinguisher automatically or preparing the extinguisher circuit for separate control operated manually. Specification 572,754 [Group XXXVII] is referred to.