baber/WOPTO huggingface dataset:
Patent GB-677172-A (GB)
Title: Improvements in continuous digestion of titaniferous material
IPC: F28F19/00
Filed: 1950-02-27
Abstract: Titaniferous material, e.g. ores or slags, and sulphuric acid are charged continuously through pipe 14 into a rotatable kiln 10 formed with an acid-resistant liner 16 which need be only in that portion of the kiln wherein the reaction mass is a slurry, the mixture is heated, e.g. to 180-210 DEG C, as by the flame of a burner 38 passing into compartments 43-45, by steam, hot air, or electrical space heaters, for 5-15 minutes, <PICT:0677172/III/1> <PICT:0677172/III/2> and the mass, as it progresses from a fluid to plastic and finally solid condition, is alternately chopped and scraped from the interior wall of the kiln, whereupon it is discharged through hood 19 provided with a heating jacket 21 to prevent condensation of the acid vapours, which are withdrawn through stack 20.  The chopping and scraping action is effected by a rigid finned member 22, which, Fig. 5, may be formed by securing together angle irons 30, 31.  At least three fins are provided, at least two adjacent fins, but less than all, being provided with cut-out portions 28, 29, the cut-out portions being staggered so that at least one of the fins in contact with the interior surface of the kiln is formed with a cut-out portion at one end only.  The interior surface of the kiln adjacent each end is provided with at least two projecting members 26.  As the kiln rotates, the member 22 slides over the inner surface of the kiln, until a member 26 contacts a fin not provided with a cut-out, whereupon the member 22 is carried upwardly until it overbalances and falls to the bottom of the kiln.  Other forms of finned members are shown, formed by securing fins to a central pipe or cylinder.  The solid product from the kiln is delivered to a second heated rotating kiln wherein it is kept at 1 1/2 -2 hours at 190-200 DEG C.  Air or air and steam may be delivered to the second kiln as described in Specifications 671,728 and 671,729.  Specifications 201,966 and 288,569, [both in Class 1(iii)], also are referred to.
Patent GB-688509-A (GB)
Title: Improvements in or relating to heat-exchange elements
IPC: F28D9/00
Filed: 1951-03-01
Abstract: 688,509. Making heat-exchangers. BRUNNSCHWEILER, K., and MARSH, (HEATING & VENTILATING), Ltd., R. March 1, 1951, No. 4997/51. Class 83 (ii). [Also in Group XIII] A heat-exchange element comprises a corrugated metal sheet 1 constituting a partition wall separating fluids between which heat is to be exchanged, one or each end of the corrugated sheet being formed with a row of slits to receive a plain metal sheet 3 and the ends of the corrugations being closed by securing together the walls forming the corrugations in pairs alternately on opposite sides of the plain sheet 3, the arrangement being such that the walls which form a pair on one side of the sheet are associated with different pairs of walls on the opposite side of the sheet. The plain sheet 3 may project outwardly from the ends of the corrugated sheet 1, (Fig. 4), and may be channel shaped, (Figs. 3 and 5), so that it may be readily adapted to form part of a duct or conduit. These heat exchange elements may be employed singly and enclosed in housings or a number of such elements may be combined in series or parallel connection in which case the elements are placed together in pairs with the sheets 3 of each pair forming a closed rectangle.
Patent GB-1447111-A (GB)
Title: Display apparatus
IPC: G03B21/62
Filed: 1973-02-01
Abstract: 1447111 Matrix displays MARCONI CO Ltd 11 Dec 1973 [1 Feb 1973] 5010/73 Heading G5C Display apparatus comprises a liquid crystal display panel, means for projecting an optical image on to the panel and means for selectively varying the transmissivity of local regions of the panel whereby information is superimposed on the optical image. The panel includes crossed conductor arrays; the image is from a cine projector and the surface on to which it is projected is frosted. The information is from a computer or a manually operated joystick.
Patent GB-395794-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J17/06
Filed: 1932-02-19
Abstract: 395,794. Thermionic cathodes. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Winter, W. F. ; 1013, Garner Avenue, Schenectady, New York, U.S.A.) Feb. 19, 1932, No. 5028. Convention date, Feb. 19, 1931. [Class 39 (i).] A cathode comprises a heating member 2, a metal cylinder 1 having radial metallic members 5, possibly of nickel, mounted on it, and layers of emissive material, e.g. a barium compound 6, filling the spaces between the members 5. Each disc 5 may be dipped in a solution of barium carbonate and dried. The coated discs are pressed together by flanges on the caps 3 which are then riveted to the cylinder 1. In a modification the flanges and interleaved layers are inside the casing. The discs 5 and intervening emissive material may have concentric circular grooves. In another modification, Fig. 4, the discs 5 are dished. There may be 150 discs per inch length of cathode, and in place of coatings, self-supporting discs of emissive material may be employed. Specification 386,376 is referred to.
Patent GB-118242-A (GB)
Title: Improvements in and relating to Railway Rail Joints.
Inventor: HENDERSON ELVIES
IPC: E01B11/26
Filed: 1918-03-21
Abstract: 118,242. Henderson, E., and Henderson, J. March 21, 1918. Rail joints, scarf and like.-Rails in which the joints are formed by having at one end the web and flange cut away to leave a projecting tread position, and at the other end have the tread cut away to leave a projecting web and flange portion have the web of the first-mentioned end provided with two depending screens 15 spaced from the web to form channels to receive fish-plates 18 secured to the side of the web of the second mentioned portion; stops 17 are formed on the firstmentioned parts to prevent the fish-plates entering too far and to bring the bolt holes into register.
Patent GB-1035013-A (GB)
Title: A method of and apparatus for straightening and straining rod, tube and bar sectionsmade of metal, particularly copper and light metal alloys
IPC: C22F1/00
Filed: 1965-02-05
Abstract: 1,035,013. Altering physical properties; stretching. FUCHS G.m.b.H. Feb. 5, 1965 [Feb. 7, 1964], No. 5214/65. Headings B3E and B3V] A method of straightening and straining rod, tube, bar or like metal stock, e.g. of copper or light metal alloy, on hot-straightening benches comprises heating the stock to a predetermined temperature below the recrystallization point, whilst substantially maintaining the stock under a given degree of tensile strain, and maintaining the predetermined temperature substantially constant with the aid of a regulator controlled by a temperature sensing element, which senses the temperature of the stock whilst it is being straightened in conventional manner and submitted to a prescribed degree of strain. Magnesium alloy section is clamped on a straightening bench, heated to a temperature of 240‹ C. by current passed therethrough and applied through the gripping clamps, straightened by conventional straightening tools and stretched to an elongation of 3%. The temperature during straightening and stretching is measured by a thermoelement, resistance thermometer or semiconductor element which controls a regulator to keep the temperature constant. The thermoelement may be connected to the gripping clamp.
Patent GB-1069322-A (GB)
Title: Improvements in the mixing and distribution of animal foodstuffs
Inventor: TAYLOR DAVID WILLIAM
IPC: B01F3/12
Filed: 1964-02-07
Abstract: Apparatus for use in a method of mixing liquid or semi-liquid animal foodstuffs comprises a container (1) having a rotatable agitator (7), a suction pipe (C) leading to a pump (8) and outlet pipeline (E), and a bypass pipe (D) from the outlet pipeline to the container including a valve (13); by adjustment of the latter the pressure in the outlet pipeline can be varied.  The by-pass pipe (D) terminates in an elbow (31) to assist circulation in the container.  The agitator (7) comprises a flat disc with radial ribs (4).
Patent GB-970296-A (GB)
Title: Level indicating and/or regulating device for use in melt spinning heads
Inventor: WADEWITZ HARTMUT
IPC: D01D1/09
Filed: 1962-02-12
Abstract: 970,296. Melt spinning head. GER ATEUND REGLER-WERKE TELTOW VEB. Feb. 12, 1962, No. 5260/62. Drawings to Specification. Heading B5B. A device for indicating and/or automatically regulating the level of a pool of melt in a spinning head, said melt having low electrical conductivity, comprises sensing means which dips into the pool of melt and the parts of which are the electrodes of a capacitor formed by means of the melt situated between the electrodes and varying as a function of the variation in level of the pool of melt, the capacitor being connected as a frequency-determining element in an oscillatory circuit having a frequency-dependent rectifier. The distance apart of the mutually facing surfaces of the electrodes of the measuring capacitor are preferably large relative to the thickness of any film of melt adhering to them. One of the electrodes may be the wall of the spinning head containing the pool of melt. One of the electrodes may be connected directly or indirectly to the heating source of the spinning head. The shape of the electrodes may be in accordance with a required functional relationship between the input magnitude depending on the level of the level of the melt and the output magnitude (i.e. frequency). The sensing device may comprise two coaxial tubes which are electrically insulated from one another and maintained in concentric relationship by means of ceramic pins passing cross-wise through the two tubes, the outer electrode being earthed to screen off any external interference. An embodiment of the oscillatory electrical circuit is described and illustrated.
Patent GB-473523-A (GB)
Title: The manufacture of new compounds of dimethylxanthines
IPC: C07D473/10
Filed: 1937-02-22
Abstract: Double compounds are prepared from dimethylxanthines by reacting metal compounds thereof with salts of valerianic acid, preferably of isovalerianic acid.  The reaction may be effected in an aqueous medium using molar quantities of the reactants, whilst the metal present in each reactant comprises the alkali and alkaline earth metals.  Thus, 1 mol. of theobromine-sodium may be combined with 1 mol. of sodium isovalerianate or 1 mol. of theobromine-strontium with 2 mols. of strontium isovalerianate. The products possess therapeutic properties.  According to the example, theobromine is added to a solution of caustic soda in aqueous alcohol, mixed with an aqueous solution of sodium isovalerianate, and evaporated under reduced pressure.
Patent GB-208948-A (GB)
Title: Improvements in and relating to steam generators
IPC: F22B17/00
Filed: 1923-02-23
Abstract: 208,948. Robson, P. W., and Clayton & Shuttleworth, Ltd. Feb. 23, 1923. Straight-tube superheaters; dampers for controlling superheaters. - In a water-tube boiler having a steam reheater within its casing the drums of the reheater are placed immediately above and supported upon the steam and water drums. The drums b of a reheater placed above a boiler of the kind described in Specification 180,511, [Class 123 (ii), Steam generators], are arranged at right-angles to and are supported upon the boiler drums a, a<1>. Baffles d between the reheater tubes C are extensions of the boiler baffles d<2>, d<3>. A superheater j<1> is placed in the first pass of the furnace gases. A damper g in the baffles d<2> allows the furnace gases to be directed into the second pass without flowing over the superheater. A damper may be fitted on one side of the boiler tubes to regulate the passage of gases directly from the furnace to the reheater tubes. The superheater is placed between the reheater and the boiler tubes and has arms extending between the tubes of the reheater and connected to headers m. The baffles f are of the kind described in Specification 180,512.
Patent GB-792916-A (GB)
Title: Improvements in electrical equipment for producing flashing lights
Inventor: MEE SAMUEL NEVILLE SHAW
IPC: H05B39/09
Filed: 1955-02-24
Abstract: 792,916. Supply systems for consuming devices. PARMEKO, Ltd. Feb. 8, 1956 [Feb. 24, 1955], No. 5564/55. Class 38 (4). A system for producing flashing lights comprises a saturable reactor having two iron cores 1 each wound with A.C. windings 2, which are in parallel opposition, and D.C. control windings 3 which are connected in series aiding relationship. The A.C. windings 2 are in series with a capacitor 8 and load 9 which may be represented by a number of lamps, or an apparatus from which the lamps are operated. A variable resistor 7 is adjusted so that the A.C. circuit becomes resonant, whereupon the current therein rises, thereby altering the impedance of the A.C. windings and so causing the circuit to fall out of resonance. As a result, the alternating-current now decreases until the circuit is resonant again, this cycle being regularly repeated to produce the emission of pulsating light. The variable inductance is also parallel resonated by means of a second capacitor 10 for increasing the range of the variation of alternating-current, so that the lamps may actually be extinguished at each fall in the current. The A.C. and D.C. supplies to the saturable reactor may be derived from separate secondary windings of a common transformer, the windings 3 being connected to a bridge rectifier. A second bridge rectifier may be used for converting the A.C. at the output side of the capacitor 8 into D.C., and a potentiometer may be provided for adjusting the rate of pulsation of the illumination afforded by the load 9, Fig. 2 (not shown). The lamps may then be supplied through a magnetic amplifier having, as its first stage, an auto-excited transductor with a potentiometer for further control of the degree of brilliancy. In its second stage, the amplifier incorporates a saturable reactor together with a switch which enables a static warning light to be given although the pulsating system may be out of operation.
Patent GB-399173-A (GB)
Title: Improvements in or relating to gas producing compositions
IPC: B29C49/46
Filed: 1932-02-24
Abstract: An improved gas-producing composition in pelleted form, which evolves gas under the action of heat comprises a solid p  gas-producing substance or mixture of substances together with a small proportion of a stabilizer consisting of a dehydrating agent, the stabilizer being an anhydrous substance capable of forming a hydrate, or a lower hydrate which has a tendency to form a higher hydrate at the temperature at which the composition is required to remain without decomposition.  The gas-producing mixtures referred to are a mixture of ammonium chloride with sodium nitrite which produces nitrogen and a mixture of tartaric acid with sodium bicarbonate or ammonium carbonate which produces carbon dioxide.  The stabilizers referred to are anhydrous sodium carbonate or sulphate.  The pellets may be used for inflating rubber balls or the like, e.g. at temperatures of 100 DEG  C. or over.
Patent GB-248743-A (GB)
IPC: H04N5/04
Filed: 1926-02-27
Abstract: 248,743. Seguin, L., and Seguin, A. March 5, 1925, [Convention date]. Controlling lighting systems. -In apparatus for producing flashes in a discharge tube at predetermined intervals, for instance, for making stroboscopic observations, the tube is connected in parallel with a condenser which is charged continuously, and is discharged by a timing switch, and the circuit is arranged with no selfinduction. As shown, the condenser 1 is charged by a continuous-current generator 3 driven by a motor 2, a non-inductive or inductive resistance 4, or both, being provided for preventing a shortcircuit of the generator when the flash occurs. The condenser is connected through the lamp 16 with an auxiliary spark-gap 15, and a switch having a rotating disc 5 with one or more contacts 7 producing two sparks between those contacts and adjustable contacts 8. The disc may be driven by an electric motor 9 having sufficient mass to obtain uniform motion; the speed of the motor may be synchronized with the speed of the object under examination by means of a rheostat 10 and a brake consisting of a fan 11 with an adjustable inlet or outlet for the air. An auxiliary high tension supply 26 may be provided so as to ensure a spark, should the discharge of the condenser be ineffective. The disc may be replaced by a pendulum having two contacts moving above fixed contacts. In another arrangement, a main condenser ie charged from an alternating current source through a thermionic rectifier, and a condenser of smaller capacity than the main condenser is shunted across the lamp so that a constant charge may be maintained in the main condenser.
Patent GB-986146-A (GB)
Title: Improvements in or relating to apparatus for separating peas, beans or the like fromtheir pods
Inventor: PLOWMAN GEORGE ARTHUR
IPC: B07B13/00
Filed: 1962-02-14
Abstract: 986,146. Shelling peas &c. MITCHELL ENGINEERING Ltd. Feb. 14, 1963 [Feb. 14, 1962], No. 5617/62. Heading A4C. Apparatus for separating peas, beans or the like from their pods comprises drums 1 which are rotated over an endless, openwork, movable apron 3, the drums 1 having at their peripheries beater bars 2 the tips of which are arranged to leave a clearance with respect to the apron 3 through which clearance the pods pass to be impacted by the leading edges of the beater bars 2 so as to become opened to release the peas which then fall through the apron 3 into a collecting means, the apron serving as a conveyer for removing empty pods. The apron 3 may comprise transverse rods 4 extending between chains 5 which are driven by sprockets 6 on shafts 7. The apron 3 and drums 1 may be driven from a common power source.
Patent GB-117638-A (GB)
Title: Improved Process for the Electrolytic Deposition of Metals.
Inventor: DEKKER NICOLAS HENRI MARIE
IPC: C25C1/00
Filed: 1917-04-21
Abstract: 117,638. Dekker, N. H. M. April 21, 1917. Metals and non-metallic substances, obtaining; electrolytes, treating non-chemically.-An electrolyte for depositing metal is formed by treating a hydrated or non-hydrated salt with steam. The application of steam is usually intermittent. Acid liberated is taken up by a hydrated or anhydrous oxide, carbonate, basic salt, or the like, placed in the anode compartment. The salt formed is collected at intervals and brought to the same state of oxidation and saturation as the cathode electrolyte, to which it is then added. Suitable salts for the electrolyte are iron chloride, lead chlorate or hyposulphite, manganese hypochlorite or dithionate, cadmium nitrate, cobalt nitrite, zinc sulphate, sodium sulpho-stannate, and chrome alum.
Patent GB-222760-A (GB)
Title: New or improved combination means for supporting window blinds and curtain or cornice poles
IPC: E06B9/50
Filed: 1924-03-05
Abstract: 222,760. Woodbourne, J. March 5, 1924. Brackets.-A bracket for supporting window blinds and cornice poles is stamped from sheet metal and is formed with two flat outstanding legs b, c and a base a bent at right-angles. The upper leg b is cut away to support the cornice pole and the lower leg c is apertured or slotted to receive the blind roller spindle.
Patent GB-1196183-A (GB)
Title: Process for Preparing Ethylene Polymers or Copolymers
IPC: C09B67/32
Filed: 1968-02-05
Abstract: 1,196,183. Polymerizing ethylene. STAMICARBON N.V. 5 Feb., 1968 [9 Feb., 1967], No. 5695/68. Heading C3P. Ethylene polymers are prepared by a process which comprises partially polymerizing ethylene feed in a first reactor wherein the reactants circulate internally during polymerization, and passing the effluent therefrom to a tubular second reactor wherein the said effluent passes substantially straight through and unpolymerized feed is polymerized therein at 100‹ to 400‹ C. and over 500 atmospheres. Reaction in the first reactor may be initiated by a coordination or supported oxide catalyst or by high energy radiation. The first reactor may be an autoclave which may have two or more zones in which different reactions prevail. Part of the monomer may be fed cold to the tubular reactor, optionally at a plurality of points, and the reaction therein may be controlled by periodic pressure changes. The ethylene may be copolymerized with acrylic and methacrylic acids, esters and amides, and vinyl acetate. In examples apparatus comprising an autoclave with stirring means and a tubular reactor is used for the polymerization of ethylene in the presence of propane, oxygen and hexane solutions of lauroyl peroxide or t.-butyl perbenzoate.
Patent GB-225806-A (GB)
Title: Improvements in or relating to gill-drawing frames
IPC: D01H5/04
Filed: 1924-03-06
Abstract: 225,806. Holdsworth, W. Dec. 6, 1923, [Convention date]. Gill boxes and frames.- The bottom screw 3 of a gill frame is provided with radial cam members 10. Figs. 4 and 6, provided with guiding means, adapted to guide the faller bar during its complete movement of transfer. Each member 10 is secured by a foot 15 in a slot 14 in the hub 13 of the screw 3 and comprises an arm 18 formed with a rounded nose 19 and provided with a guide finger 21. The rearward side of the cam is bevelled off at 23 forming a shoulder 24 to provide a clearance for the threads of the top screw 2, while the guide 21 is off<3et laterally an Known in Fig. 2 to ensure that the leading edge of the flange, will clear the under edge of each bar 7, the top screw 2 being cut away at 26, 29 and the thread bevelled off at 28 to provide the necessary clearance. The action of the cam in lifting a faller bar 7 is shown in Fig. 4, the bar being lifted first on the nose 19 and then on the peripheral edge of the cam. the said edge being concentric with the axis of the screw, the bar being guided throughout by the finger 21. The cams on the top screw may also be formed as above described.
Patent GB-1261245-A (GB)
Title: Processing apparatus
Inventor: STIEVENART EMILE FRANS
IPC: G03D5/06
Filed: 1969-02-04
Abstract: 1,261,245. Photographic processing apparatus. AGFA-GEVAERT. Feb. 3, 1970 [Feb. 4, 1969], No. 5959/69. Heading G2A. Photographic processing apparatus has a developing station with at least two liquid applicator rollers 26, 27 located one behind the other in the direction of feed of exposed photographic strip or sheet material and partly located in a tray 21, 22 for containing developing liquid, a fixing station with at least one liquid applicator roller 32 partly located in a tray 24 for containing fixing liquid, and pairs of driven rollers 15, 16, 17 for transporting photographic material through the apparatus so that it travels over and in contact with the applicator rollers, applicator roller 26 rotating in an opposite direction to the material, the peripheral speed of applicator roller 27 being higher and in the same direction as the speed of the material, and applicator roller 32 being in the same direction as roller 26. Guides 28, 33 enable contact with rollers 26, 32 over 15 degrees of the circumference of the rollers, guide 33 having fingers 36 to keep a sheet immersed in the fixing solution. Roller pairs 16, 17 act to squeeze the material to remove processing solutions.
Patent GB-194693-A (GB)
Title: Improved process for rapidly and uniformly ripening alkali cellulose intended for the manufacture of cellulose xanthate
IPC: C08B1/08
Filed: 1923-03-01
Abstract: The ripening of alkali cellulose is rendered more rapid and uniform by heating the mass, with agitation, to 50-60 DEG  C. for a few hours, say, 2-8 hours.  Conveniently, the mass is heated in a rotary drum provided with a jacket or worm through which air or water at a temperature of 50-60 DEG  C. is passed; and on completion of the ripening and before conversion into viscose, the mass is cooled by passing cold water through the jacket or worm, or by sprinkling the exterior of the drum with cold water.  By the more rapid and uniform ripening, a greater yield of artificial silk is obtained from the resulting viscose solution.