baber/WOPTO huggingface dataset:
Patent GB-815934-A (GB)
Title: Improved process for the continuous production of amines
Filed: 1956-12-04
Abstract: A continuous process for the production of amines RNH2, where R is an aliphatic or cycloaliphatic hydrocarbon radical having 8-22 carbon atoms, comprises contacting the corresponding carboxylic acids in the liquid phase in a first reaction zone with ammonia to convert substantially all the acid to amide; continuously passing the amide in the liquid phase to a second reaction zone where it is contacted with ammonia to convert 70-90 weight per cent of the amide to nitrile; continuously venting from both reaction zones substantially only ammonia and water of reaction; continuously passing liquid nitrile, amide and unconverted acid to a vaporization zone and then in admixture with ammonia to one end of a third reaction zone containing a dehydration catalyst to convert substantially all the acid and amide to nitrile; continuously passing the reaction mixture together with hydrogen and ammonia into one end of a fourth reaction zone containing a hydrogenation catalyst to form amine; continuously passing the effluent to a condensing zone and recovering liquid amine.  Suitable feed stocks mentioned are pure acids such as caprylic, capric, lauric, myristic, palmitic, stearic, oleic, linoleic and linolenic acids; acids derived from the hydrolysis of fats and oils such as tallow, soybean oil, coconut oil and cotton-seed oil; tall oil; cycloaliphatic wood rosin acids such as abietic, dihydroabietic, tetrahydroabietic, dehydroabietic, primaric and colophonic acids.  Specified dehydration catalysts are activated alumina, silica gel and bauxite; hydrogenation catalysts include Raney nickel, and platinum- and palladium-based catalysts, or where it is desired not to eliminate unsaturation, cobalt-molybdate or copper-chromium oxide catalysts.  The process is described in detail, together with a drawing of the preferred apparatus (not shown), in connection with the use of a mixture of fatty acids derived from the hydrolysis of tallow as feed-stock.
Patent GB-782995-A (GB)
Title: Tapered flexible tubing such as waveguides
IPC: H01P3/14
Filed: 1954-12-22
Abstract: 782,995. Waveguides. TITEFLEX, Inc. Dec. 22, 1954 [Feb. 18, 1954], No. 37101/54. Class 40(8). [Also in Groups XXII and XXVIII] A rectangular-sectioned flexible waveguide 9 includes an untapered small-end section 10, a tapered centre section 11 and an untapered. large-end section 12. The waveguide is formed by helically winding around a tapered mandrel a strip of metal, e.g. brass, formed with an upturned flange along one edge which engages in a fold, formed along the opposite edge of the strip, of the adjacent convolution, the engaged edges being bent over to form the helical seam. Solder thread may be enclosed in the seam as the seam is formed, the seam being subsequently soldered by the application of heat. Specification 680,880, [Group XXII], is referred to.
Patent GB-1512450-A (GB)
Title: Plastics pallet
IPC: B65D19/00
Filed: 1975-09-09
Abstract: 1512450 Plastics pallets MITSUBISHI CHEMICAL INDUSTRIES Ltd 9 Sept 1975 [6 May 1975 20 May 1975] 37116/75 Heading B8H A plastics pallets comprises two components having decks 1, 1<SP>1</SP> and girders or pillars 2<SP>1</SP>, 3<SP>1</SP>, 4<SP>1</SP>, or 2<SP>11</SP>, 3<SP>11</SP>, 4<SP>11</SP>, abutting surfaces of the girders or pillars being melt adhered together and at least one of the decks having strengthening ribs 5. In Fig. 1, the upper deck carries anti-slip means (6-8, Fig. 1) whilst in Fig. 8, the upper upper deck has openings 16 therein. In the case where the pallet has fork-receiving mouths formed by pillars, these mouths may be at different levels on different sides of the pallet.
Patent GB-833002-A (GB)
Title: New polymeric material and compositions prepared therefrom
Inventor: FENDLEY JOHN ATTON
IPC: C08F257/02
Filed: 1956-12-05
Abstract: A polymeric material is obtained by polymerizing from 10 to 150 parts by weight of methyl methacrylate in the presence of 100 parts by weight of a copolymer containing from 50 to 85% by weight of styrene or substituted styrene units and 50 to 15% by weight of acrylonitrile units, which copolymer may contain a minor proportion of a third copolymerizable monomer, e.g. vinyl carbazole, vinyl acetate, vinyl pyridine, methyl acrylate, methacrylate and chloroacrylate and methacrylic acid, amide and nitrile.  Preferably the methyl methacrylate is polymerized in the presence of an aqueous emulsion of the styrene/acrylonitrile polymer with the aid of catalysts such as hydrogen peroxide, potassium persulphate and organic hydroperoxide/reducing agent redox system and also sodium lauryl sulphate as an emulsifier and tert.-dodecyl mercaptan as a modifier. The resulting polymeric materials are formed into thermoplastic compositions by mixing them, in a proportion of 25 to 95%, with a rubbery homopolymer or copolymer of butadiene, e.g. a butadiene copolymer with styrene, acrylonitrile or methyl methacrylate. Present in these compositions may be antioxidants such as heptylated diphenylamine, the condensation product of diphenylamine and acetone, di-tert.-butyl-p-cresol and di-o-tolylethylenediamine.  The compositions, which are vulcanizable, may be used in the fabrication of pipes, pipe couplings, panels, helmets, wheels, gears, pulleys and combs.
Patent GB-1527142-A (GB)
Title: Treadle operated control
IPC: H01H21/26
Filed: 1975-09-10
Abstract: 1527142 Valves SQUARE D CO 10 Sept 1975 [17 Oct 1974] 37180/75 Heading F2V [Also in Division H1] A foot control for a switch or valve includes a treadle 8 mounted on a base 6 for movement in one direction against a bias, and a biased safety member 19 movable on said base in a predetermined direction against its bias, the movement of the safety member in said predetermined direction being necessary before the treadle can be moved in said one direction, and said predetermined direction being generally opposite to said one direction. As shown, the treadle 8 closes switch contacts 2, 3 when depressed against a spring 15 but the toe-plate portion 25 of the pivoted safety member 19 restricts access to the treadle and has to be lifted by the toe against the action of a spring 26 before the foot can engage the treadle 8. The safety member 19 also comprises an arm 21 with a notch 22 which latches under a projection (16, Fig. 1, not shown) at the side of the treadle 8, to prevent closure of the contacts 2, 3 unless the safety member 19 has been lifted. The treadle may actuate a valve instead of switch contacts.
Patent GB-344396-A (GB)
Title: An improved combined fair-lead and jamming-cleat for ropes
IPC: F16G11/00
Filed: 1929-12-04
Abstract: 344,396. Cleats. HOLMAN, A. T., Chyverton, Callestick, Cornwall. Dec. 4, 1929, No. 37207. [Class 109.] A combined fairlead and cleat comprises a member having a groove 7 leading at an acute angle from one end of the fair-lead conduit 3. A second groove 6, at an obtuse angle with the conduit 3, is provided to allow a rope to be passed quickly through the device. The groove 7 may be substantially V-shaped to assist in jamming the rope, and the grooves 6, 7 are open at one and the same side to allow a rope to be transferred from one groove to the other.
Patent GB-522987-A (GB)
Title: Improvements in or relating to the production of double fluorides of alkali metals and aluminium
IPC: C01F7/54
Filed: 1938-12-22
Abstract: 522,987. Aluminium-alkali metal fluorides. HEISER, H. W. Dec. 22, 1938, No. 37300. Convention date, July 29. [Classes 1 (ii) and 1 (iii)] Double fluorides of aluminium and alkali metals are obtained by adding to a solution of a hydrofluoboric acid compound materials which provide aluminium and alkali metal ions in proportions to effect precipitation of double fluorides, the materials not including an alkali metal aluminate. The hydrofluoboric acid may be obtained by treating fluorspar with sulphuric acid and boric acid, the calcium sulphate formed being removed from the solution ; an alkali sulphate, e.g. sodium sulphate may be present to furnish alkali metal ions for the subsequent reaction. Aluminium hydrate and sodium carbonate are suitable compounds for reaction with the hydrofluoboric acid After precipitation of the double salt, e.g. of aluminium and sodium, the filtrate containing boric acid may be used with the additioh of sulphuric acid for further reaction with fluorspar. Specification 515,113 is referred to.
Patent GB-1396164-A (GB)
Title: Extruder die
Inventor: SCHOLL K H
IPC: B29C48/87
Filed: 1972-08-10
Abstract: 1396164 Tubular film die BADISCHE ANILIN- & SODA-FABRIK AG 10 Aug 1972 [11 Aug 1971] 37336/72 Heading B5A A die for the extrusion of blown thermoplastics film comprises an annular outlet 7 defined between a mandrel 8, and a surrounding die ring 1 having an outer heating means 5 within which is located 16 to 192 circumferentially spaced chambers 2 for the passage of a fluid heating or cooling medium. The chambers are preferably arranged as 4 to 12 individually temperature controlled segments 9, each comprising 4 to 16 and preferably 6 to 10 of the chambers 2. The means 5 may be continuous, but preferably comprises a separately controlled segment for each chamber segment 9. The fluid medium may comprise air or oil, either circulating in the opposite direction to that of extrusion or, as shown, in the same direction from an inlet 3, including an insulating baffle 6, to an outlet 4 of adjustable size. The individually controlled sectors enable control of the temperature around the outlet to control film thickness, micro melt fracture, and transparency. The thermoplastic may comprise homo- and copolymers of ethylene and of propylene, or copolymers of styrene and of vinyl chloride, or may comprise polyamide.
Patent GB-1511286-A (GB)
Title: Process for the determination of chemical compounds by chemiluminescence with ozone
IPC: G01N21/76
Filed: 1975-09-11
Abstract: 1511286 Chemiluminescence gas analysis PETROLEO BRASILEIRO SA PETROBRAS 11 Sept 1975 [20 Sept 1974 22 Aug 1975] 37447/75 Headings G1A and G1B A chemiluminescence gas analysis method comprises measuring and recording luminescence of the gas during reaction with ozone in a series of stages comprising either (a) measuring luminescence at selected different temperatures at which each class of suspected compound reacts in turn with ozone or (b) at a temperature at which all classes react, measuring luminescence successively at respective wavelengths at which each class reacts. A reaction chamber 24, having a sealed quartz window 32, is provided with mutually-perpendicular bores 45, 35, opening into a recess 48 for introducing respectively ozone and a specimen gas, e.g. gas chromatograph effluent containing inert carrier gas and an unknown hydrocarbon mixture. An exhaust passage 34 is connected to suction apparatus (15, 14, 13) Fig. 2 (not shown) via a purging flask or trap (12) to render the ozone harmless. A cooling chamber 50 sealed with a second quartz window 41 and attached to a photomultiplier 37, is surrounded by a cooler 39 having a refrigerant circulation passage 51. The reaction chamber 24 is heated by elements inserted in openings 30, a further opening 31 being provided for a thermocouple and electrical connections. The specimen gases may be pre-heated by a coiled portion of gas admission tube 46 located in an annular space between hollow cylinders 26, 27, the inner cylinder containing a controllable heating element in a bore 28 and a thermocouple in a bore 29. In use, hydrocarbons of various kinds and affinities may be distinguished by the selective onset of chemiluminescence within different temperature ranges between e.g. 20 and 250‹C, and by characteristic spectra selected by filters or monochromaters (not shown). The photo-multiplier output is connected to a pulse discriminator (21), (Fig.2), a signal convertor (22) and a recorder (23).
Patent GB-959575-A (GB)
Title: Improvements in methods of manufacturing magnetically-anisotropic bodies
IPC: C04B35/26
Filed: 1960-11-01
Abstract: 959,575. Magnetic structures. PHILIPS ELECTRICAL INDUSTRIES Ltd. Nov. 1, 1960 [Nov. 4, 1959], No. 37510/60. Heading H1H. [Also in Division B5] A method of manufacturing magneticallyanisotropic bodies comprises supplying magnetically anisotropic particles to a die of substantially non-ferromagnetic material which is surrounded by an electric coil for producing a magnetic field, compressing the particles with the aid of a plunger having a non-magnetic end portion in the magnetic field which extends in the direction of the movement of the plunger, and thereafter sintering the conglomerate to produce a compact body. As shown, particles 1 in a non-magnetic die 2 surrounded by a coil 3 are compressed by plungers 4, 5, of magnetic material whose ends are formed from non- magnetic material for example brass or synthetic resin. Alternatively, the plungers may be entirely non-magnetic. The die may be modified so that the liquid of a suspension of magnetic particles may be removed on compression. Two dies may be enclosed within a single coil. The magnetic material formed may have the formula Ba x  Sr y  Pb z O, 6Fe 2 O 3  where x+y+z = 1 and each may be zero. Alternatively it may be a material whose crystals exhibit a preferred plane of magnetization.
Patent GB-1280457-A (GB)
Title: Holographic identification system
Inventor: GREENAWAY DAVID LESLIE
IPC: G06K19/16
Filed: 1968-08-06
Abstract: 1280457 Holography readers RCA CORPORATION 5 Aug 1969 [6 Aug 1968] 37512/68 Heading G4M [Also in Division G2] An identification card includes a hologram of identification indicia. The identification indicia is recorded as a hologram of a representative predetermined binary coding in the form of spaced points of a given light pattern. Preferably a laser beam illuminates a predetermined combination of lenses L of a given array (those not used being blanked off), the transmitted light interfering with an on axis reference beam to form a hologram 220. When the hologram is illuminated with an appropriate reconstructing beam a reset image of the light pattern is formed, each point of which is sensed at a position corresponding to the position of the source in the original array. The read out beam may be non-coherent and polychromatic. To ensure complete interception of the reconstructed image the area of each sensing element is greater than the area of the image of each light source. It is desirable to decode the binary information which has been sensed to obtain a given number of the card and compare it with a registered number to indicate a predetermined relationship between such numbers. Such a card typically belongs to a system of cards each having a different number and thus different binary code. Logic means are provided responsive to the light sensing means for determining and verifying the associated indicia.
Patent GB-344790-A (GB)
Title: Perforated sheet metal bases for skips and baskets
IPC: B65D6/08
Filed: 1929-12-09
Abstract: 344,790. Skips or baskets. LEE, F., 126, Entwistle Road, Rochdale. Dec. 9, 1929, No. 37643. [Class 133.] Perforated sheet metal or " expanded " metal bottoms for skips and baskets are strengthened by having a metal edging frame composed of strips c welded or riveted to them and by the provision of metal cross-pieces d welded or riveted to the edging frame. The bottoms are attached to the basket sides by metal strips h, Fig. 3, which are passed around the edging c, through perforations in the bottom, and upwardly to be bent around the cane stakes e forming the upper edge f of the basket. Wooden clogs k are attached to the underside of the bottom by means of rivets. The metal parts are painted, enamelled, or galvanized.
Patent GB-1131564-A (GB)
Title: Platform lift
Inventor: RATCLIFF JOHN EDWARD
IPC: B60P1/46
Filed: 1966-08-23
Abstract: 1,131,564. Platform elevators on vehicles or containers. E. J. RATCLIFF (MECHANICAL ENGS.) Ltd. 22 Aug., 1967 [23 Aug., 1966], No. 37841/66. Headings B8E, B8H and B8P. A platform elevator 5 is secured where desired on runners 4 slidable in vertical guides 6 on a door forming part of a load container or vehicle. The elevator door is preferably provided with lift off hinges 23 so that it can be used in different positions and also with heavy duty hinges 24 mainly to support the load. The platform 5 is pivotally secured to the runners 4 so that it can be moved to a vertical position when not in use with the door closed. The elevator is actuated by a piston and cylinder device 14 acting through cables 19, 21.
Patent GB-1475615-A (GB)
Title: Magnetic bubble domain generator
IPC: G11C19/08
Filed: 1975-09-15
Abstract: 1475615 Magnetic storage arrangements ROCKWELL INTERNATIONAL CORP 15 Sept 1975 [27 Sept 1974] 37855/75 Heading H3B For injecting magnetic bubbles into a propagation path 23, Fig. 2, formed by columns of permalloy chevron overlay elements 24, a bubble generator comprises a permalloy disc 21 joined by a conductor 22 of the same material to a column of chevrons. This arrangement enables the assembly to be formed as a single permalloy layer on a magnetic bubble domain storage film 100 which may have the composition Y 2À54 Sm 0À45 Ga 1À17 Fe 3À83 O 12 . In operation the normal bias field Hb establishes a seed bubble 26, Fig 3A, which is rotated about the periphery of the disc 21 by a clockwise in-plane rotating magnetic field H r . When the field has the orientation shown in Fig. 3B and a pulse I s  is applied to conductor 22, the seed bubble elongates to form a domain coupled with the chevron pattern. A further pulse I c  of opposite sense is applied when the magnetic field orientation is as shown in Fig. 3C to cut the elongate domain, and provide an isolated bubble in the propagation path.
Patent GB-1533759-A (GB)
Title: Electrolysis cathodes
IPC: C25B11/10
Filed: 1976-09-14
Abstract: 1533759 Electrode comprising particulate alumina and zirconia DIAMOND SHAMROCK CORP 14 Sept 1976 [15 Sept 1975] 38033/76 Heading C7B A cathode for the electrolysis of water or an aqueous alkali metal halide solution which comprises an electrically conductive substrate bearing on at least part of its surface a foraminous coating produced by melt spraying in a substantially non- oxidizing gas stream a mixture comprising particulate cobalt and particulate zirconia. The cathode may be prepared by flame or plasma arc spraying particulate Co, Co alloys containing Fe and Ni, ZrO 2  containing other oxides e.g. Cu, Si, Al oxide together with diluent materials e.g. Fe, Ni, Al oxide, Ti dioxide using non-oxidizing gas on to expanded or perforated Fe, mild steel, stainless steel, Ti or Ni substrate. The cathode may be used as a bipolar electrode in water electrolysis or may be used in conjunction with a diaphragm or membrane separator in the electrolysis of alkali metal halide solutions.
Patent GB-905660-A (GB)
Title: Improvements in and relating to the cutting of pipes and tubes and apparatus therefor
IPC: B23K7/00
Filed: 1957-12-06
Abstract: 905,660. Cutting by fusion. SWAN, N. W. Sept. 29, 1958 [Dec. 6, 1957], No. 38055/57. Addition to 828,197. Class 83 (4). In a pipe-profiling machine as claimed in the parent Specification, the movement imparted to a tracer 23 by a template 19, Fig. 3, is transmitted to at least one of the pipe cutters through an adjustable lever system 16 whereby the ratio of the tracer movement to the cutter movement may be varied. The pipe P to be cut is clamped by radial or hinged supports 11, Fig. 2, within a clamp ring 8 supported on rollers 1a and having external teeth meshing with a pinion 9 driven by a handle 10 for rotating the pipe. The handle 10 also drives a vertical shaft 21 carrying a turn-table 18 for a flat template 19, Fig. 3, which is held down by a clamping disc 20, Fig. 2. The template is engaged by two roller followers 23, Fig. 3, carried by two levers 16 biased by a spring 29 and pivoted on adjustable blocks 24 carried by an adjustable cross member 25. The free ends of levers 16 are engaged by rods 15 movable parallel to the pipe axis and each having a hinged carrier arm 14 for an oxygen gas-cutting torch 13 whereby the latter may be swung into or out of its operative position. The torches may be set to cut on the bevel. Blocks 24 are adjustable together or apart by handles 26 and member 25 is adjustable towards or away from the template by a handle 28 according to a calibrated scale whereby the effective movement to the torches imparted by the template may be varied to suit pipes of different diameters. The two lever systems may be adjustable independently or each system may be controlled by a separate template. The apparatus is mounted on a telescopic base 2 with running wheels 5 and a steering wheel 6. One or more adjustable supports 12 for the pipe P are provided. A tubular side member 3 contains the oxygen bottle and a component drawer 31.
Patent GB-866050-A (GB)
Title: A new or improved method of switching rail guided vehicles
Inventor: WORDSWORTH NORMAN EATON
IPC: B61J1/08
Filed: 1956-12-15
Abstract: 866,050. Sector turntables railway crossings. PLOWRIGHT BROS. Ltd. Dec. 16, 1957 [Dec. 15, 1956], No. 38334/56. Classes 104 (1) and 104 (2). In an apparatus for use with rail guided vehicles in which a frame is pivotally mounted, supported and guided in an arc about a vertical axis, rails are pivotally mounted on the frame about a horizontal axis and are normally biased to incline downwardly away from the run off/run on position. In the arrangement shown in Figs. 1 and 2 rails J are pivotally mounted on about a horizontal pin Z on a frame K pivoted about a vehicle axis X and provided with wheels Y engaging an arcuate track M. The rails J are so mounted as to be normally biased to an inclined position away from the run off/run on rails P and Q when not loaded with a vehicle H. A stop S is provided to prevent the vehicle H running off the remote end of the rails J. When a vehicle H is received on the rails J the rails tend to tilt in an inclined direction towards the run off/run on rails P and Q but this movement is prevented by a bell crank lever L which is pivotally mounted on the frame K and is provided with a loaded lower end so as to be held in the position shown in Fig. 2. The frame K is moved by an hydraulic cylinder C between the positions aligning the rails J with the run off/run on rails P or Q and the lever L is actuated by an hydraulic cylinder D to allow the rails J to tilt towards the run off/run on rails P or Q. After the vehicle H has left the rails S they revert to their original position in which they are inclined away from the run off/run on rails P and Q and the lever L reverts to the position shown in Fig. 2. In further embodiments, Figs. 4 and 5 (not shown), an additional run off/run on rail, hydraulic cylinder D and hydraulic cylinder C are provided. The run off/run on rails may be arranged to approach each other at acute, normal or obtuse angles.
Patent GB-941574-A (GB)
Title: Improvements in or relating to colour photography
Inventor: HUNT ROBERT WILLIAM GAINER
IPC: G03B27/73
Filed: 1959-11-12
Abstract: 941,574. Photoelectric control of photographic colour printing. KODAK Ltd. Nov. 11, 1960 [Nov. 12, 1959] No. 38346/59. Heading G2A. [Also in Division G1] Photographic colour printing apparatus includes means for determining colour balance comprising two photo-cells sensitive to different colours, with their outputs connected in opposition. The required balance between colours to which the cells 1 and 2 are sensitive is set on the potentiometers 4, 4<SP>1</SP> and the spectral sensitivity of the printing paper in use is set on the potentiometers 3, 3<SP>1</SP>. The printing light is adjusted until the meter 7 reads zero. The colour balance maybe measured before or after the light passes through the negative. If different colour balances are required for thin and dense negatives potentiometer 8 may be moved from its centre position or a mechanical adjustment of the meter zero made. A second circuit is required to measure the balance between the remaining primary colour and one of the colours first measured. Specification 660, 099 is referred to.