baber/WOPTO huggingface dataset:
Patent GB-578695-A (GB)
Title: Improvements in or relating to methods of concentrating ores
IPC: B03D1/01
Filed: 1943-04-20
Abstract: The separation of acidic materials from other ore constituents by flotation, stratification, tabling, and like processes is effected in the presence of an alkyl or acyl alkylene diamine of the formula <FORM:0578695/IV/1> or <FORM:0578695/IV/2> or a salt thereof, where y is an integer from 2-12, R is hydrogen or an alkyl radical, R1 is an alkyl radical of 8-30 carbon atoms or a carboxylic acyl radical of 8-32 carbon atoms, R2 is hydrogen, an alkyl radical of 8-30 carbon atoms or an alkylol-ester or aralkyl radical, R3 is an acyl radical of 8-32 carbon atoms, and R4 is an alkyl, alkylol, alkylol-ester or aralkyl radical.  The N-acyl compounds may be prepared by reaction of fatty acids, their esters or acyl halides with alkylene diamines, for example from myristoyl chloride and ethylene diamine in acetone or from coconut oil fatty acids and tetramethylene diamine at 200 DEG C.  The N-alkyl derivatives may be prepared from alkylene diamines and alkyl, alkylol, alkylol-ester or aralkyl halide, e.g. from myristyl bromide, propylene chlorhydrin or cetyl chlor-acetate, and an equimolar amount of ethylene diamine or from lauryl bromide with half the molar equivalent of propylene diamine.  They may be further acylated, for example N-octyl propylene diamine is reacted with coconut oil fatty acids, N-ethyl ethylene diamine with myristoyl chloride, and N-lauryl tetramethylene diamine with acetic anhydride. Saturated, unsaturated or hydroxy fatty acids may be used for the acylation, preferably those of at least 9 carbon atoms and especially mixtures thereof obtained from fats and oils, and acids such as talloel and naphthenic acid.  The free bases or their salts such as hydrohalides, formates, acetates, p-toluene sulphonates may be used. They are particularly useful in the separation by froth flotation of silica or silicates from non-metallic ores, especially phosphate rock.  They are used in amounts ranging from 0.2 lb. per ton of ore, either alone or with other promoters such as petroleum distillates, or pine oil or materials such as hydrocarbon oils, fatty acids or esters, in aqueous solutions or emulsions or in organic solvents such as alcohol.  Results are given of tests on deslimed phosphate rock using pine oil with lauroyl diaminobutane acetate, N-lauryl ethylene diamine hydrobromide, myristoyl ethylene diamine hydrochloride, lauroyl ethylene diamine hydrochloride or N-lauryl N1-hydroxyethyl ethylene diamine hydrobromide.  The treatment of rake classifier sands from cement works and of iron ores also is referred to.
Patent GB-1173953-A (GB)
Title: Improvements in or relating to Function Generating Apparatus
IPC: G01N21/27
Filed: 1967-02-09
Abstract: 1,173,953. Spectro-photometer. HONEYWELL Inc. Feb. 9, 1967 [Feb. 14, 1966], No.6322/67. Heading G1A. [Also in Division G4] In a funtion generating apparatus an input signal (T) is added in a summing amplifier 4 to a selectively variable signal (-a) developed in a circuit 5-10, the log of the amplifier output is generated in a unit 15, and is added to a second selectively variable signal [log (Tr-a)] in a second summing amplifier 25 to give the desired output. A factor K may be introduced by a voltage divider in the output. The arrangment is used to produce a direct indication of a solution concentration from the optical transmittance T measured in a spectrophotometer which may be of the mass absorption type. A non-linear device is used for the variable resistor 18 in order to produce an approximation of log (Tr-a), and capacitors 12, 13 switchable into the feedback path of amplifier 4 provide slectable noise attenuation. Switches 11 are provided to earth the amplifier inputs during balancing, and switches 9, 10, 19, 20 to remove the input "a" in order to provide an output indicative of absorbance. Calibration of the apparatus is described, and the use of a digital voltmeter for indicating is suggested.
Patent GB-203357-A (GB)
Title: Production of iron chromium alloys
IPC: C21C7/00
Filed: 1922-03-07
Abstract: 203,357. Saltrick, W. R. March 7, 1922. Alloys. - Iron-chromium alloys are made bv smelting or reducing a mixture of chromite and an aluminium-silicon alloy or aluminium silicide in a furnace having a non-carbonaceous lining. The furnace may be electric or open hearth and of such a kind as not to add free carbon to the product. Part of the reducing-agent may be silicon alloys or silicides other than of aluminium, such as ferro-silicon or calcium silicide. Lime, fluorspar, and iron oxide or ore may be used as part of the charge. The product obtained may be refined by blowing, for example by air, air enriched with oxygen, or a medium containing steam ; suitable fluxes or slags being used during the operation. The charge may be briquetted. In some cases the reaction mixture may be added to a molten bath of low-carbon steel or other metal in an open-hearth furnace. Specifications 192,150, 197,987, 202,336, and 202,664 are referred to.
Patent GB-409873-A (GB)
Title: Connecting device for straps, boots, braces and other articles
IPC: A44B11/25
Filed: 1933-03-06
Abstract: 409,873. Hook fastenings. BARNES, L. J., Austral House, Fisher Road, Dee Why, New South Wales, Australia. March 6, 1933, No. 6719. [Class 44.] A fastening for straps, braces and shoes consists of a flat bar 1 connected by a neck 2 to an attachment plate 3 and cooperating with hooks 4, 5 on an attachment plate 6, engagement or disengagement of the bar 1 being possible only when it is held at a particular angle. The neck 2 engages between the hooks 4, 5 to prevent endwise movement of the bar 1. One attachment plate 3 or 6 may be provided with slots 12, 13 and prongs 16 to connect it adjustably to a strap and the other attachment plate may be formed with a hook part 7 for permanent attachment to a watch or it may consist of a flat strip which is attached to a strap by stitching. Alternatively both plates may be permanently secured by prongs which are passed through the strap &c. and clinched down. As applied to braces, one plate is adjustably mounted on the usual webbing while the other plate is slotted to receive the usual tabs.
Patent GB-559071-A (GB)
Title: Improvements in and relating to the protective surface treatment of magnesium base alloys
IPC: C25D11/38
Filed: 1942-04-03
Abstract: 559,071. Surface treatment of magnesium alloys. MAGNESIUM METAL CORPORATION, Ltd., and COATES, G. E. April 3, 1942, Nos. 6719/43 and 6720/43. Drawings to Specification. Divided out of 558,983. [Class 41]  Magnesium base alloys are given a protective coating by anodic treatment in an electrolyte comprising dichromate and sulphate concentrations not less than 0.05 mols. per litre, the cations of the salts remaining in stable solution within the pH range which is controlled by a buffer or addition agent to lie between 4 and 6. Dichromates and sulphates of hydrogen, lithium, sodium, magnesium, potassium or ammonium may be employed. The buffer agent comprising single or mixed acids and salts selected for cold solutions from acetic, proprionic, butyric, valeric, malonic, succinic, glutaric, adipic, pimelic and phthalic acids and for hot solutions from caproic, oenanthic, malonic, succinic, glutaric adipic, pimelic, suberic, benzoic, and phthalic acids, the cations of the salts being in either case lithium, sodium, magnesium, potassium, or ammonium. Tetra methyl and tetra ethyl ammonium ions and N methyl pyridinium ions are also suitable. A cathode of stainless steel or a metal plated with chromium, silver, gold, platinum, palladium, or rhodium is used, and an externally applied current may be employed or the cell may be self-exciting. Specifications 2459/40 (as open to inspection under Sect. 91), 498,626, 510,353, 515,648, 550,175, 550,176, and 558,983, [Group II], are referred to.
Patent GB-1180844-A (GB)
Title: A Metal Rail and a Method of Joining the Rail to a Wooden Pale.
Inventor: EKLUND K I
IPC: B66F9/12
Filed: 1967-02-13
Abstract: 1,180,844. Spiked plates. ECE PATENT AB. 13 Feb., 1967 [15 Feb., 1966], No. 6740/67. Heading F2H. [Also in Division E1] A metal rail 2 is provided with a pair of tongues 10 which extend from one face of the rail and to which a wooden pale can be attached, the tongues 10 being bent so that their free edges 13 face away from each other and their juncture lines 15 with the rail are substantially opposite their free edges 13. The tongues 10 may be arranged to lie within a pale (1) (Figs. 8, not shown), the pale (1) being firmly secured to the rail 2 by applying a force to ensure the free edges 13 of the tongues 10 grip the material of the pale. The tongues 10 may be struck from the rail so as to leave holes 27 between or outside the area between the tongues 10.
Patent GB-406484-A (GB)
Title: Improvements in processes for producing a wood glue
IPC: C09J189/00
Filed: 1933-03-06
Abstract: <PICT:0406484/III/1> A wood glue, containing dispersed caoutchouc and a "glue substance" selected from glue, casein, dextrin, albumen or vegetable protein material in proportions such that the glue is sufficiently fluid to be applied by spreading, has an amount of alkali added which is determined by the accompanying graph, whereby a glue is obtained which will not penetrate a veneer of wood.  The graph shows that as the total amount of dry matter in the glue ranges from 15 to 75 per cent of the whole composition, the maximum permissible amount of alkali, expressed in terms of calcium hydroxide, ranges up to 8.5 per cent of the total amount of organic colloids present.  As an example, 100 parts by weight of casein may be incorporated with 500 parts of concentrated latex (33 per cent water), 2 parts of caustic soda, and 750 parts of water.  The Specification as open to inspection under Sect. 91 comprises also the use of starch as a "glue substance."  This subject-matter does not appear in the Specification as accepted.
Patent GB-1097246-A (GB)
Title: Method and apparatus for removing excess welding material from butt welded joints inrails
IPC: E01B31/15
Filed: 1966-02-16
Abstract: 1,097,246. Broaching; supports. ELEKTROTHERMIT G.m.b.H. Feb. 16, 1966 [Feb. 26, 1965], No. 6872/66. Headings B3B and B3L. [Also in Division B4] An apparatus for removing excess welding material from a welded joint in a rail comprises a slide 4 having a channel-shaped cross-section fitting over the tread of the rail 8 and having exchangeable cutters 5, 6 for removing the excess weld 11, and a pneumatically or mechanically operable hammer unit 1 connected to the slide 4 by a shaft 3 for forcing the said cutters through the weld material 11. The hammer unit 1, which may be compressed air or mechanically actuated, is supported by a member 9 having a double flanged guide 10 locating on the rail 8. The cutters may be arranged on the slide 4 so that weld material is removed from the top of the rail before it is removed from the sides.
Patent GB-1080363-A (GB)
Title: Treating textile materials
Inventor: HULBERT DUNCAN ROBERT
IPC: D06M13/372
Filed: 1963-02-21
Abstract: Textile materials, e.g. filaments, fibres, tows and yarns, comprising at least a proportion of fibres made from a polyester derived from terephthalic acid or from a polyolefine are rendered antistatic by treating them with 0.05-0.5% of a polyalkenoxy agent obtained by condensing ethylene and/or propylene oxide with a linear or branched chain saturated or unsaturated aliphatic, cycloaliphatic, aromatic or araliphatic carboxy, amido, amino, hydroxy, or mercapto compound in which the aliphatic, cycloaliphatic, aromatic or araliphatic residue contains at least 8 carbon atoms and may be further substituted by hydroxyl, thiol, ether, thioether or amino groups and further reacted with a linear or branched chain saturated or unsaturated aliphatic, cycloaliphatic, aromatic or araliphatic carboxylic acid, and 0.001-0.05% of a corrosion inhibiting salt having the formula [Mp+]q[Xq-]p in which cation M+ is derived from a metallic element forming ionic salts, preferably lithium, sodium or potassium, X- is a nitrite, carbonate, bicarbonate, tetraborate, orthophosphate, chromate, benzoate or silicate anion and p and q are integers corresponding to the valencies of the cation and anion respectively, each quantity being based on the weight of the textile materials. The polyalkenoxy agent and corrosion inhibiting salt may be applied to the textile materials from the same solution or dispersion or from separate solutions or dispersions in separate stages.  In the manufacture of cold-drawable fibres when the filaments from which the fibres are made are drawn to at least twice their length, the polyalkenoxy agent may be applied in an aqueous bath on a draw frame before drawing the filaments at least twice their length, the corrosion inhibiting salt being applied subsequently or after drawing but before cutting into staple length fibres.  The solutions or dispersions may be applied by padding, from a rotating wheel dipping into them, by immersion or by jet or spray.
Patent GB-1475445-A (GB)
Title: Method of dispersing carbon black in liquid elastomers
IPC: C08L33/00
Filed: 1975-02-19
Abstract: 1475445 Elastomeric compositions FIRESTONE TIRE & RUBBER CO 19 Feb 1975 [20 Feb 1974] 7076/75 Heading C3P Carbon black is dispersed in liquid elastomers by mixing 30-160 parts by weight of a hydrocarbon oil-beaded carbon black which contains 25-100 parts by weight of carbon black and 5-60 parts by weight of hydrocarbon oil, with 100 parts by weight of a liquid elastomer. In the examples the liquid elastomer is a hydroxy terminated butadiene-styrene copolymer, and the carbon blacks are of the types ISAF and HAF; the compositions also contain adjuvants such as a processing oil, 4,41-diphenylmethane diisocyanate, toluene 2,4-diisocyanate, 4,4<SP>1</SP>- methylene - bis - 2,6 - di - t - butylphenol and dibutyltin dilaurate.
Patent GB-493698-A (GB)
Title: Improvements relating to the air cooling of gear casings
IPC: F16H1/16
Filed: 1937-03-11
Abstract: 493,698. Cooling gearing. HATCHER, E. C. March 11, 1937, No. 7155. [Class 80 (i)] A gear casing a having exterior fins b, c and containing lubricant, is provided with a removable jacket d which is supported by the fins and by distance pieces. The jacket is open at one end and is extended at the opposite end to enclose a fan g by which a current of air is maintained through chambers between the fins. The jacket may be open at one side or entirely closed and provided with air inlet openings. The fins may be curved to direct the air from two sides and the top of the casing into a passageway aligned with the bottom of the casing.
Patent GB-1441681-A (GB)
Title: Gotaverken angteknik ab refuse burning furnace
Inventor: AOSTROEM INGMAR
IPC: F23G5/44
Filed: 1974-02-18
Abstract: 1441681 Air supply to incinerators GOTAVERKEN ANGTEKNIK AB 18 Feb 1974 [5 March 1973] 7208/74 Heading F4B  Deposits are prevented from settling in and cleared from the air passages in the wall of a furnace by the flow of air between the wall of the passage and a sleeve which is axially displaceable with respect to the passage, the end of the sleeve remote from the wall being sealed from the passage and accessible from outside the furnace. The sleeve 14 may be sealed to a guide 16 and movable telescopically with respect to the tubular guide by a screw 19. An observation window 20 and a probing hole 21 are arranged in the closure 18 of the guide. In another embodiment, Fig. 3, the sleeve 14 is sealed to the outside wall of the air passage by bellows 30, and is supported by a bracket 31 moved along a guide 32 by a screw 19. A passage 34 delivers gases from a refuse drying plant to the interior of the sleeve, and a door 35 carrying a sight hole 20 and probe hole 21 is arranged opposite the end of the sleeve. A television camera or other observation device may be movably mounted in the sleeve.
Patent GB-509137-A (GB)
Title: Improvements in and relating to cigarettes
IPC: A24D1/02
Filed: 1939-03-06
Abstract: 509,137. Cigarettes ; advertising. ROTHMANS, Ltd., and WYNER, H. March 6, 1939, No. 7259. [Class 130] [Also in Group XVIII] A cigarette is enclosed in a removable jacket 3 which extends the full length of the cigarette paper tube and is attached to it by an adhesive of such a nature that the jacket can be removed without damage to the tube. The jacket may be a coupon carrying printed or advertising matter and may be attached so that its edges 4 lie adjacent the seam 2 of the tube 1 to which it is secured by an .adhesive coating along its edges or at localised areas 5 or around the circumference of the tube. The adhesive may consist of printers' ink which may be mixed with molasses or glycerine. One of the contacting surfaces of the jacket and paper tube may be glossy ; for example, it may be made of friction polished sulphite paper whereas the other surface may be of a dull and adhesive absorbing nature.
Patent GB-762788-A (GB)
Title: Improvements in shuttering for ribbed reinforced-concrete floors and in methods of supporting such shuttering
IPC: E04G11/46
Filed: 1954-03-12
Abstract: 762,788. Shuttering for casting floors. GIRARD, E. G. L. March 12, 1954, No 7274/54. Class 20(2) Shuttering for casting concrete floors comprises shuttering elements 1 disposed end to end with their adjacent ends spaced apart and supported at each end by transverse beams 15 and shuttering plates 12 between the elements supported by a beam 21 which is adapted to support the concrete after the shuttering elements have been removed. Cover plates 11 complete the shuttering between the elements 1. The outer girders 15 are supported on props 16 and plates 19 and the inner girders 15 and the girder 21 on a girder 17 and props 18. Between the inner girders 15 and girder 17 are U- section plates 20 with pins 28, Fig. 15, passing through its flanges and resting on the girder 17 and all the girders are secured by wedges 27, Fig. 11, holding their flanges by means of ears 25 on the plates 19 or 20 or on the girder 17. When the concrete has set sufficiently the outer girders 15 and props 16 are removed. Pins 28 are removed to lower the plates 20 and the inner girders 15 and the elements 1 removed. The girders 21, 17, props 18 and the plate 12 support the concrete while setting is completed. The shuttering elements comprise two elements 1a, Fig. 3, hinged together at 2 and having extensions 6 and these elements placed side-byside are adapted to form a floor with integral ribs as shown at 5. The extensions 6 may be changed to vary the form and height of the ribs. The elements 1 on removal are hinged about the hinge 2 after removal of transverse members 3.
Patent GB-199102-A (GB)
Title: A drinking fountain
IPC: A01K39/026
Filed: 1922-03-13
Abstract: 199,102. Kingdon, H. H. March 13, 1922. Drinking-appliances for animals.-A drinking- fountain for birds, dogs, &c. in which an airtight reservoir a attached to a trough b serves to maintain a constant supply of water in the trough, is formed with an opening 1 for filling or cleaning the reservoir, surrounded by a guard 2 within which is a flange 3 to support a. cover consisting of a disc 4 of rubber &c. having a metal backing 5. The cover is held in place by atmospheric pressure.
Patent GB-500917-A (GB)
Title: Improvements in or relating to covered top construction for desks and the like
IPC: A47B13/08
Filed: 1938-03-09
Abstract: 500,917. Desk and table tops. ART METAL CONSTRUCTION CO. March 9, 1938, No. 7356. Convention date, April 19, 1937. [Class 52 (iii)] A desk or table top comprises a core 11 having rounded side edges 14 and abrupt end edges 16, linoleum &c. 20 covering the upper surface and the rounded side edges, and finishing strips 25 at the ends having rounded side and end surfaces conforming to the rounded sides of the core. The core is stiffened by cross members 12 and the rounded side edges 14 have inwardly-extending horizontal flanges 15 to which are fixed finishing strips 23. The end edges 16 are bent downwardly and outwardly to form horizontal flanges 17 'secured to the pedestals of the desk by bolts 32. The finishing strips 25 are of metal provided with down-bent upper edges 26 which bear upon the linoleum &c. 20 near its edge. Tongues 28 welded to the inner side of the strip 25 take through slots in the wall 16 and are bent over to secure the strip in place. Horizontal flanges 27 on the strips 25 take between the flange 17 and the top 33 of the supporting structure.
Patent GB-565885-A (GB)
Title: Improvements in or relating to extra high tension switch gear for use with small currents at high voltages in plant for the electrical precipitation of dust in gases
IPC: B03C3/66
Filed: 1943-05-11
Abstract: 565,885. High-tension switches. WHESSOE FOUNDRY & ENGINEERING CO., Ltd., and FRANCOMBE, K. W. May 11, 1943, No. 7468. [Class 38 (v)] Switchgear suitable for gasprecipitation plant, comprises a rotatable insulating rod or rods 8, each carrying a knifeblade'9 which can be.rotated to engage either contacts 71, 7<11> connected to sources of different voltage, or to engage a terminal 7 and so earth the plant connected to the blade 9. An incoming cable 12 is connected to contacts 7<11> directly and to contacts 71 through a pair of series-connected voltage-reducing resistances 15. An earthing switch 16 operable by handle 17 is provided for the cable 12. The circuits to outgoing cables 13 include ammeters 22 mounted on legs 21 on upper cross-members 3 which are spaced from lower crossmembers by members 5, 6, the whole being supported by angle-irons 4 from the lid 2 of the oil tank 1. Apertures 23 in the lid permit viewing of the meters 22 which are above the oil-level. The shafts 8 are operated by hand wheels or, as shown, by key-operated locks 11, the keys being removable only when the switch is earthed, and being also used for the L.T. isolator and only removable therefrom when open.
Patent GB-662553-A (GB)
Title: Improvements relating to the formation of solidified ends on members of metal braid or foil used as electric conductors
Inventor: FISH ROBERT
IPC: B23K11/00
Filed: 1949-03-18
Abstract: 662,553. Making electric components. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Feb. 28, 1950 [March 18, 1949], No. 7477/49. Classes 83 (ii) and 83 (iv). Electric welding.-In a method of forming a solidified end on a metal braid or foil member, the end of the braid &c. is resistance-welded between jaws of molybdenum or tungsten, using mechanical pressure of at least 1000 1b./square inch. A lower electrode 5 is rigidly fixed, e.g. brazed, in a copper block 4 supported in a groove 3 in a water-cooled brass bed 2 of a welding- machine. An upper electrode 8 rigidly fixed, e.g. brazed, in a copper block 7, is pressed towards the electrode 5 while on each side of the electrodes 5, 8 a plunger 11 of a pneumatic ram 10 presses a frame 12 supporting on asbestos lagging a metal, e.g. " Nimonic " (Registered Trade Mark) plate 13 to engage the electrodes 5, 8 and braid &c. to avoid " flashing " due to squashing of the braid &c. A tank 16 supplied with running water and having above it a frame 19 provided with rollers 20, 21, 22 is mounted adjacent the bed 2. In operation, when used for,mass production, braid &c. from a spool is fed continuously while the upper electrode 8 is lowered to effect welding and then raised at spaced time intervals. The plates 13 are pressed towards the electrodes and the hot welded braid &c. is passed over roller 20, under roller 21 into the water in the tank 16 and finally out over the roller 22. The required lengths of conductor are obtained by cutting through the middle of the welds. A machine having a capacity of 250 KVA and employing a mechanical pressure of 2500 1b./square inch for copper braid is described with higher pressures for copper foil. If a single member is to be welded the ends are made too long and then cropped off, or a steel plate is held against the end of the member. The flexible conductor may be of circular cross-section, the ends of which are welded into solid rectangular block.