baber/WOPTO huggingface dataset:
Patent GB-1066262-A (GB)
Title: Dropping and/or trickling shaft adapted both to use as a bunker and to the vertical downward feeding of material
IPC: B01D35/06
Filed: 1964-09-10
Abstract: 1,066,262. Coal shoots. JOSEF BRAND G.m.b.H., E. KOSTER, and K. KOSTER. Sept. 10, 1964 [Sept. 11. 1963], No. 37055/64. Heading B8S. In a coal shoot made of sections 1, 2, 3 steps 4, 5 are provided to retard the fall of the coal and each such step is provided with an auxiliary step 14 or 15 with the purpose of shielding the shoot sides from attrition.
Patent GB-523006-A (GB)
Title: Improvements in or relating to the destructive distillation of carbonaceous materials
IPC: C10B1/04
Filed: 1938-12-21
Abstract: 523,006. Carbonizing processes. STREVENS, J. L., WATERS, A. E., and BROCKLEBANK, E. W. Dec. 21, 1938. Nos. 37181 and 8348/39. [Classes 55 (i) and 55 (ii)] In the carbonization of coal, pitch, wood &c. in a retort, wherein a carburetted combustible gas is passed therethrough or thereover the amount of carburetting material lies between 200 and 2000 lbs. per ton of coal &c. and the quantity of gas does not exceed 15,000 cubic feet per ton of coal &c. The carrier gas may be a hydrocarbon gas or a reducing gas containing hydrogen or carbon monoxide; coal gas, water gas and blue gas are specified. Carburetting materials exemplfied comprise tar fractions, gas oil, solvent naphtha (creosote oil, hydrocarbon oils such as benzol, anthracene &c. and organic compounds of diverse nature, such as phenol, pyridine, quinoline, alcohols and other solvents, aniline, aldehydes and chlorinated derivatives. Low or high temperature distillation may be used, i.e. 400-650 ‹C. or above 1000‹C. The gas from a retort 11 after purification in a condenser 34 and scrubbers 35 to 38 is divided at the valves 17 and 20, one part for usage at 19 and the other part for re-cycling to the retort after mixing with oil in a vaporizer 22 and being heated in a heater 28. A small proportion of air, steam or inert gas may be added to the circulating gas. The gas may be heated before admission to the retort by passing through hot coke discharged therefrom; the latter on cooling may be saturated with the carburetting material and the hot gas passed therethrough. The carburetting material may be heated in a pipe still and the vapours admitted to a distillation column, the vapour from the latter then being mixed with the carrier gas. The setting of a retort may be provided with a tube to which the carrier gas and oil are supplied.
Patent GB-1095950-A (GB)
Title: New azo dyes and their production
Inventor: SCHEFCZIK ERNST
IPC: C09B43/124
Filed: 1966-08-19
Abstract: The invention comprises azo dyes free from sulphonic acid groups and having the general formula <FORM:1095950/C4-C5/1> wherein A is a radical of an azo dye and R is a hydrocarbon radical having at least two carbon atoms and may be substituted and/or contain heteroatoms. Preferably, A is a radical D-N = N-E-, wherein D is a diazo component of the benzene series and E is a coupling component of the benzene, naphthalene or heterocyclic series.  They are prepared by reacting an azo dye or a diazo or coupling component containing at least one primary amino group with an acid halide of the general formula <FORM:1095950/C4-C5/2> wherein Hal is Cl or Br and R is as above, and when a diazo or coupling component is used subsequently forming the azo dye by diazotization and coupling.  The acylation step is usually carried out at 0-200 DEG  C. in presence of an organic solvent, many solvents are specified. Alternatively, an azo compound, a diazo or coupling component containing the group <FORM:1095950/C4-C5/3> is reacted with a carboxylic acid ester of the general formula <FORM:1095950/C4-C5/4> wherein R1 is a substituted or unsubstituted hydrocarbon radical and R2 and R3 are hydrogen or methyl or ethyl groups, preferably in a solvent or diluent at temperature up to 150 DEG  C. and when a diazo or coupling component is used, forming the azo dye by diazotization and/or coupling.  The reaction with the unsaturated ester is accelerated by inorganic bases and a polymerization inhibitor, e.g. hydroquinone may be present to prevent polymerization of the ester.  The disperse dyes obtained dye synthetic materials, e.g. polyesters in yellow, orange and scarlet red shades.
Patent GB-1356726-A (GB)
Title: P-and m-cymene separation
IPC: C07C7/13
Filed: 1972-08-09
Abstract: 1356726 Separating m- and p-cymenes HERCULES Inc 9 Aug 1972 [10 Aug 1971] 37240/72  Heading C5E p- or m-cymene is separated from a mixture comprising p-cymene, m-cymene and, optionally, o-cymene by selective sorption on a molecular sieve zeolite. The mixture is preferably in the liquid phase. Suitable zeolites are type X or type Y, e.g. 13X based exchanged with Ba and K salts. The sorbed cymene isomer may be displaced by a desorbent, e.g. benzene or toluene. A simulated moving bed scheme is described involving 4 zones of sorbent connected in series to which the feed mixture and desorbent are introduced and the extract and raffinate are removed, these inlets and outlets to the 4 zones being cyclically changed. The extract and the raffinate may each be distilled to recover m- and p-cymenes.
Patent GB-360716-A (GB)
Title: Improvements in or relating to tiled roof coverings for buildings
IPC: E04D1/08
Filed: 1930-12-10
Abstract: 360,716. Roofs. HURDEN, E., The Gables, Harefield, HURDEN, A. P., Bodwen, Green Lanes, Northwood, both in Middlesex, and BEESON, S. E., Rosemary, The Cloisters, Rickmansworth, Hertfordshire. Dec. 10, 1930, No. 37299. [Class 20 (iv).] Spanish or half-round tiles A, tapered longitudinally, are laid in spaced rows on continuous sheets B of asbestos cement, metal, or other material forming the troughs. The tiles are secured by screws C engaging plugs D of wood, metal, or fibre let into the sheets, and may be formed of asbestos cement or other material, the small ends being inserted in the large ends and the joints closed by flanges or plugs. The sheets may be corrugated under the tiles, and may have engaging curved edges b<2>, b<3>.
Patent GB-1550733-A (GB)
Title: Thermosettable compositions and method for producing mouldings and coatings
IPC: C08G59/00
Filed: 1977-09-07
Abstract: In order to produce mouldings or coatings based on epoxide compounds and ureas, novel ureas of the formula <IMAGE> are employed in which n = 0 or a positive integer, and R is a divalent hydrocarbon radical which is free from aromatic rings and is optionally substituted, or is a divalent hydrocarbon radical whose free valences are both derived from aromatic carbon atoms and which are optionally substituted. The use of these ureas brings, in particular, the advantage of an improved shelf life.
Patent GB-1378012-A (GB)
Title: Gyratory rock crusher
IPC: B02C2/04
Filed: 1972-10-12
Abstract: 1378012 Gyratory crushers L W JOHNSON 12 Oct 1972 [27 Dec 1971] 37456/73 Divided out of 1378011 Heading B2A  The description is the same as in the parent Specification 1378011, but the claims relate to the means for adjusting the bowl rotationally to vary the crushing gap.
Patent GB-1519996-A (GB)
Title: Method and apparatus for producing a plasma
IPC: C22B9/22
Filed: 1975-09-11
Abstract: 1519996 Melting metals H LIU 11 Sept 1975 [18 Sept 1974] 37467/75 Heading C7D [Also in Division H5] In a vacuum furnace, metals are refined by pasage through superimposed A.C. and D.C. plasmas, energized by alternating current and direct current between respective pairs of electrodes 27, 38 and 35, 34 and stabilized by an axial magnetic field. Metal billets 19 are fed in through a chamber in hollow electrode 27 (connected to the A.C. supply 57) maintained at an intermediate vacuum by pump 32. They fuse together because of the temperature of the plasma 49, 56, with additional heat from source 28. Arms 29 prevent the billets falling through the furnace. The surface of the billets exposed to the plasmas melts and droplets 66 fall through the plasma 56 to melt pot 38 connected to the A.C. supply as the second A.C. electrode. Direct current is fed between annular electrode 35 and shell 34. As the droplets fall impurities come to their surfaces and evaporate off. Pot 38 is tapped at intervals and molten metal falls into mould 40. A magnetic field may be supplied by coil 60 or permanent magnets. Successive shields 25, 88 (which is cooled) protect enclosure wall 45. Mould 40 may be withdrawn through a chamber at intermediate vacuum 47. The furnace gas (supplied from 53) may be inert e.g. nitrogen, argon helium or reactive e.g. Hydrogen. Exemplary figures are given for the operating conditions. Feedstock is scrap metal.
Patent GB-1460070-A (GB)
Title: Vehicle seat assembly
IPC: B60N2/90
Filed: 1974-08-28
Abstract: 1460070 Seat adjustments FORD MOTOR CO Ltd 28 Aug 1974 [31 Aug 1973] 37555/74 Heading A4J  A vehicle seat is mounted on fore-and-aft slides 26, 27, Fig. 6, which are in turn mounted on further fore-and-aft slides 12, 15 on the vehicle floor. The lower slides 12, 15 may be adjusted for position with a conventional catch mechanism, while the upper slides 26, 27, allow the seat cushion portion to move forwardly when the seat backrest 28 is folded down to allow access to a rear seat. The backrest brackets 29 are pivotally secured at 31 to the seat cushion portion, and depending levers 33 engage a pin 34 secured to the intermediate assembly 15-26 of the slide arrangement. Thus when the backrest is tilted forwardly the cushion portion is pushed along rail 26. The lost motion slot 36 required by this arrangement also serves to limit the forward and rearward limit positions of the backrest. A catch 37, 38 is provided to prevent unintentional tilting of the backrest.
Patent GB-1434626-A (GB)
Title: Basic azo dyes
IPC: D06P3/00
Filed: 1973-08-08
Abstract: 1434626 Basic azo dyes SANDOZ Ltd 8 Aug 1973 [10 Aug 1972] 37573/73 Heading C4P The dyes have formula in which R 1  is unsubs. or subs. C 1 -C 4  alkyl or alkenyl, C 1 -C 4  alkoxy or C 5 -C 7  cycloalkyl, each of R 2 , R 3 , R 4 , R 5 , R 6  and R 7 , which may be the same or different, signifies H, unsubs. C 1 -C 4  alkyl, C 5 -C 7  cycloalkyl or phenyl, B is a radical II or IIa in which the end marked * is bound to the starred carbon atom, Q is the radical of a coupling component, A<SP>(-)</SP> is an organic or inorganic anion, and n is 1 to 10, which compounds are free from water-solubilizing groups (e.g. -SO 3 H). The dyes are prepared by quaternization in the usual way, or by reacting an R 1 -yielding epoxide or satd. or unsatd. acid amide with the appropriate azo dye compd. They are used for dyeing or printing homo- or copolymers of acrylonitrile or asymmetric dicyanoethylene or acid-modified polyesters or polyamides.
Patent GB-1260173-A (GB)
Title: Improvements in or relating to biopsy needles
Inventor: GOLDSMITH SIDNEY
IPC: A61B10/00
Filed: 1969-07-25
Abstract: 1,260,173. Biopsy needles. S. GOLDSMITH. 25 July, 1969, No. 37628/69. Heading A5R. A biopsy needle comprises a needle 14, terminating at one end in a base 12 for connection to a syringe and having a central longitudinal bore 18, the wall 26 of said bore, at the opposite end 16 to the base 12, being of constant taper inwardly from the outer edge 24 of the needle to provide a smooth uninterrupted cutting edge. The edge 24 is disposed entirely in a plane at right angles to the longitudinal axis of the needle or inclined at an angle x e.g. 15‹ with respect to a plane at right angles to the longitudinal axis of the needle. The base 12 has a wider bore 44 than the needle 14. The bores being connected by a tapered bore 46 and a curved outside surface 40 which provides a finger grip and a rim 42 to which a syringe may be connected. Disposed within the needle is a stop member 32, comprising a shank 36 and an enlarged end 34. The shank 36 is of such a size that it substantially fills the bore 18 but still allows fluid to pass therealong, while the head 34 has at least one dimension greater than the diameter of the bore 18 to prevent total insertion of the stop member into the bore. The difference in length between the stop member and the needle determines the length of a specimen taken.
Patent GB-995925-A (GB)
Title: Method of and means for manufacturing tamper-proof caps for containers
IPC: B65D41/34
Filed: 1962-10-04
Abstract: 995,925. Making closures. F. G. ROBINSON. Sept. 27, 1963 [Oct. 4, 1962], No. 37665/62. Heading B3A. [Also in Division B8] In a metal cap 2 having a skirt portion with a rolled outer peripheral bead or flange 7, an interrupted line of weakening is formed in the rolled bead by the reciprocatory action of a cutter member 1 acting with respect to a coacting stationary member 6. The cutter is set to cut completely through the lower portion of the rolled bead but only partly through the adjacent upper portion. The cutter member comprises a disc with a central bore, the knife edge being formed on one face thereof by an annular projection 3 of V-shaped cross-section whose continuity is interrupted at intervals by a series of slots.
Patent GB-1479809-A (GB)
Title: Thermally developable light-sensitive photographic material
IPC: G03C1/498
Filed: 1975-09-12
Abstract: 1479809 Thermally developable material FUJI PHOTO FILM CO Ltd 12 Sept 1975 [12 Sept 1974] 37696/75 Heading G2C A thermally developable light-sensitive photographic material comprises a support containing or bearing one or more layers which together contain: (a) an organic silver salt, (b) a light-sensitive silver halide or a component capable by reacting with the salt (a) of forming a light-sensitive silver halide in an amount sufficient to catalyze, where it has been exposed, the reaction of components (a) and (c), and (c) an s-triazine-2, 4, 6-(1H, 3H, 5H)- trione linked to a phenol derivative, having a substituted group in at least one ortho-position with respect to the hydroxyl group thereof, in at least one of the 1-, 3- or 5-positions of the triazine ring. Suitable triazines are of the formula in which R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each independently represents a hydrogen atom, an alkyl group having 1 to 16 carbon atoms, for example CH 3 , C 2 H 5 , C 6 H 13 , C 12 H 25  or C 16 H 33  or Q, with at least one of R<SP>1</SP> R<SP>2</SP> and R<SP>3</SP> being Q, wherein Q has the general formula II wherein R<SP>4</SP> represents an alkyl group having 1 to 20 carbon atoms and is preferably a tertiary butyl dodecyl or hexadecyl group. The effect of the phenol (c) can be augmented by adding to the materials conventionally employed reducing agents.
Patent GB-793769-A (GB)
Title: Pneumatic conveyors for pulverulent materials
IPC: B65G53/00
Filed: 1956-12-11
Abstract: 793,769. Pneumatic conveyers. HERMANNS, W. Dec. 11, 1956, No. 37852/56. Class 78 (1). Material from a heap 1 is sucked through a pipe 4 into a chamber 3 and expelled therefrom by compressed air through a pipe 16. The suction side of an air compressor 9 is connected by a pipe 8 to the upper part of the chamber and the pressure side is connected by a pipe 12 to an annular conduit 13 which surrounds the chamber. Hoses 14 with air-permeable walls are connected to the conduit 13 and extend radially into the chamber. They lie, preferably, in corrugations formed on the bottom. The inlet 5 of the pipe 4 has a thinner pipe 6 inserted in it which extends above the heap 1. A valve 7 is provided to shut off the chamber from the pipe 4. A branch pipe 11 on the pipe 8 is controlled by a cock 10 and opens to atmosphere. A similar pipe 19 is provided on the pipe 12. A shut-off valve 17 is provided on the pipe 16. When the compressor is started, if the valve 17 is shut, the cock 18 adjusted to connect the pipe 19 to atmosphere, the cock 10 adjusted to connect the suction side of the compressor to the chamber and the valve 7 is open, material will be sucked from the heap 1 into the chamber. When the chamber is full, the valve 7 is closed, the cock 10 is changed over to connect the suction side of the compressor to atmosphere, the cock 18 is changed to connect the compression side to the conduit 13 and the valve 17 opened. Air then passes through the hoses into the material and conveys it through the pipe 16.
Patent GB-1323142-A (GB)
Title: Mixing valve
IPC: F16K11/044
Filed: 1970-08-05
Abstract: 1323142 Valves A LINS 5 Aug 1970 [10 Sept 1969] 37873/70 Heading F2V A mixing valve for hot water systems adapted to be converted from manual to temperature dependent control and vice versa comprises a housing 1, Fig. 1, a valve member 5 movable between valve seats 2 and 3, and a control rod 4 protruding in a fluid-tight manner from the housing. For manual control, a rotatable knob 11 for depressing the control rod is screwed on to the valve housing or on to a sleeve 9 secured against rotation by a screw 10. The screw acts as a stop for the knob and as a pointer for a scale provided on the knob. For temperature dependent control the knob is simply removed and replaced by a housing 12, Fig. 2, accommodating piston 13 which is movable in response to temperature changes occuring in a volume of gas 16. The gas is heated by electrical means inserted in a cavity 17 and, on expansion, displaces the piston through the agency of either a diaphragm 15 and liquid 14, or, a bellows. The valve can be pre-set by rotating the housing 12 relative to the valve housing or sleeve 9 so as to permanently depress the control rod 4.
Patent GB-1377450-A (GB)
Title: Screw-thread cutting machines
IPC: B23G1/50
Filed: 1973-08-10
Abstract: 1377450 Screw cutting ORI-DAN 10 Aug 1973 [12 Aug 1972] 38067/73 Heading B3T A screw-thread cutting machine comprises a frame in which a workpiece 11 is mounted for rotation about an axis 14 guide means on the frame which supports a longitudinal slide 13 movable parallel to the axis and on which is mounted a cross slide 15 movable transversely of said axis, a first tool holder with a cutting tool 16 is mounted on the cross slide and movable therewith, a second tool holder 18 mounted on the cross slide carries a cutting tool 20 and is movable in a direction normal to the axis of rotation and to the direction of movement of the first cross slide, the cutting tool 20 being supported in the second tool holder at an angle to the cutting tool 16 carried in the first tool holder. In a screw cutting operation the two cutting tools are moved relative to the workpiece and to each other to effect rough and finish machining operations in sequence. The transverse movement of the cross slide 15 is effected by known means in a controlled stepwise manner in relation to the number of passes of the tools and providing the in feed motion. The second tool holder 18 is displaced normal to the tool slide 15 by action of the rack and pinion means 22, 23 and 24 either by the normal motion of the cross slide which effects rolling of the pinion 22 on the rack 24 to cause displacement of the rack 21 attached to the tool holder 18. Alternatively, with the tool 16 in its operative position and the cross slide stationary the rock 24 can be actuated by hydraulic means 29 to effect the required movement of the tool and holder 18. In a first mode of operation in which the tool 16 is the roughing tool and tool 20 is the finishing tool the feed action of the tools is achieved by the normal displacement of the tool cross slide 15 as set out above, the finishing tool being arranged in the final pass(es) to "overtake" the roughing tool. In the second mode of operation in which the tool 20 is the roughing tool and the tool 16 is the finishing tool the tools are set so that the tool 20 for rough machining comes first into operation but for the last 20% of the operation the hydraulic means is actuated so that the finishing tool 16 can machine the workpiece and the hydraulic mechanism actuates the racks to remove the rough cutting tool 20 by displacement of the holder 18.
Patent GB-342462-A (GB)
Title: Improvements in the construction of rubber-covered rollers
IPC: B29D99/00
Filed: 1929-12-17
Abstract: 342,462. Rollers. WHEATLEY, R., Kirtonfield, Davidson's Mains, Midlothian, and VICTORIA RUBBER CO., Ltd., Victoria India Rubber Mills, Leith Walk, Edinburgh. Dec. 17, 1929, No. 38615. [Class 42 (ii)]. A rubber-covered roller has one or more fibrous bands or cords 12 spirally wound but with the coils not overlapping em. bedded in the covering 11.
Patent GB-1514330-A (GB)
Title: Battery voltage detector circuits
IPC: G01R31/36
Filed: 1975-09-23
Abstract: 1514330 Electronic timepieces SUWA SEIKOSHA KK 23 Sept 1975 [24 Sept 1974] 38964/75 Heading G3T [Also in Division G1] A battery voltage monitoring device includes at least two FET stages in cascade, one of which changes its output state when the battery voltage falls to a predetermined level close to the threshold voltage of the FET of that stage, and one or more following stages are arranged to compensate for the temperature dependence of the one stage, and the final output from the stages is used to indicate when the battery approaches the end of its useful life. In Fig. 4, the normal battery voltage, e.g. 1À58 volts in a timepiece or calculator is above the threshold voltage (0À7 volts) of the IGFET 2 and this is therefore on raising the gate voltage of IGFET 7 to turn this on as well. The complementary inverter 5 thus has an output 6 at a high level. When the  battery voltage drops sufficiently, IGFETS 2, 7 turn off, changing the output state of the inverter 6 to low, which is used to drive an indicator. Fig. 3 shows the temperature dependence of the IGFET drain current as a function of the gatesource voltage (VTH being the IGFET threshold level) IGFET 2 is biased in the area of point a for battery voltages between normal (1À58 volts) and danger level (1À5 volts) and thus the temperature dependence of the IGFET 2 causes a fall in current for a rise in temperature. This fall causes a rise in the gate-source voltage of the IGFET 7, tending to cause a rise in its drain-source current. However this IGFET 7 is biased much closer to the threshold voltage at point c, Fig. 3, and thus its temperature dependence causes a fall in drain-source current for a rise in temperature. Thus the two effects tend to cancel, holding the output voltage to the inverter 5 steady. Since the slopes of the temperature characteristics of a and c are so different, the voltage gain of the IGFET 7 is adjusted, (e.g. by varying resistor 8), to produce an almost zero temperature dependence over a wide range, Fig. 5 (not shown). Other embodiments are described using N-channel IGFET's to compensate for either N- or P-channel first stages and in which the resistors 3, 8 may be formed by MOS transistors.
Patent GB-993424-A (GB)
Title: Improved compositions and solutions of synthetic polymers
IPC: C08L33/26
Filed: 1961-11-01
Abstract: Compositions readily dyed by disperse dyes comprise an equimolar vinylidene cyanide-vinyl acetate copolymer blended with a homopolymer or copolymer of N,N - dimethylacrylamide. Monomers which may be copolymerized with the acrylamide include vinyl acetate, styrene, acrylonitrile, methyl acrylate and methyl meth-acrylate. Polymerization may be effected in solution, e.g. in benzene, hexane or heptane, in the presence of benzoyl peroxide or 2,4-dichloro-benzoyl peroxide, or in aqueous emulsion in the presence of sodium bicarbonate, sodium dioctyl sulphosuccinate and ammonium persulphate. The blends may be prepared by dissolving the polymers in a mutual solvent, e.g. dimethyl formamide, acetonitrile or acetonitrile-water azeotrope, to form solutions which may be wet or dry spun to form fibres and filaments, or used to cast films or other shaped articles.  Specification 681,120 is referred to.