baber/WOPTO huggingface dataset:
Patent GB-572677-A (GB)
Title: Improvements relating to circuits for controlling the flow of gases
IPC: C10K1/28
Filed: 1943-09-06
Abstract: 572,677. Purifying gases. NEWTON, CHAMBERS, & CO., Ltd., SHEARD, K., and LEAVER, W. A. Sept. 6, 1943, No. 14572. [Class 1 (i)] [Also in Group XII] Plant for adsorbing vapours from gases comprises two adsorbers, separate means for supplying gas and steam, two four-way valves of the type defined below, circuit connections forming two circuits each of which contains both the fourway valves through either of which the gas can flow from the gas inlet to the outlet of the plant through one or other adsorber alone, connection between the two valves such that by operating the four-way valves alone the gas leaving either adsorber can be directed through the other on its way to the outlet to effect cooling and drying of that other adsorber and a discharge pipe connected to the connection between the two valves so that when gas is flowing through only one adsorber steam can be passed through the other and will flow through both valves to this discharge pipe. Each four-way valve is of the type having two positions and four ports arranged so that in one position the first and third ports communicate with the second and fourth, respectively and in the other position, with the fourth and second respectively. In an example, illustrated in Fig 2, the plant comprises two adsorbers 10 and 11, a gas inlet 12, a gas outlet 13 leading to a gas cooler 14 and two four-way valves 15 (with ports 1, 2, 3 and 4) and 16 (with ports 5, 6, 7 and 8). In the first phase of these valves, with gas passing through the adsorber 10 and ports 6 and 7 of the valve 16 to the outlet 13, steam passes through the adsorber 11 and through the ports 3 and 5 to the connection 20 and condenser 21. The steam inlet to each adsorber is placed between two layers 24 of activated carbon or other adsorbent to divide the flow of steam. which is shut off before the second phase begins wherein the valves are in the position shown in Fig 2 with the valve 16 connecting port 5 with port 6 and port 7 with port 8; the stripped gas arriving at port 6 from the adsorber 10 is thus passed through the valve 15 and through adsorber 11, which it cools, thence through ports 8 and 7 to the outlet 13. In the third phase, the valve 15 connects port 1 to port 4 and port 3 to port 2 and the gas is directed through the adsorber 11 and ports 8 and 7 to the outlet 13 and steam is simultaneously passed through adsorber 10 and ports 2, 3, 6 and 5 to the condenser 21. In the fourth phase the valve 16 is restored to its initial position after shutting off the steam, thus placing the adsorbers again in series as in the second, but the gas flows first through adsorber 11, then through adsorber 10 and thence to the outlet 13.
Patent GB-809283-A (GB)
Title: Process for the regeneration of waste sand from cast off moulds and cores produced from chemically hardened mixtures
IPC: B22C5/08
Filed: 1955-05-20
Abstract: In order to recover both sodium-silicate and sand from the debris of used foundry moulds and cores, the debris is heated to a temperature above 400 DEG  C., or to about 100 DEG  C. at a pressure above atmosphere of more than 0.1 kg. per sq. cm., to cause the hydrated-silica to combine with the alkali metal-carbonate to form a mixture of silicate and sand, and then the silicate is dissolved in water hydrothermically at a temperature above 100 DEG  C. at a pressure of more than 0.1 kg. per sq. cm. above atmospheric. The solution may be effected in a solution of alkaline substances, e.g. alkaline hydroxides or alkali metal silicates, in the presence of water or steam, if the ratio of silicate in the sand as regenerated is too low for re-use.  The regenerated mixture is suitable for use in the process described in Specification 654,817, [Group XXII].
Patent GB-238335-A (GB)
Title: Improvements relating to coin freed mechanism of gas and similar meters
IPC: G07F15/08
Filed: 1924-06-17
Abstract: 238,335. Simpson, S. June 17, 1924. Gas, supplying by meter; coin action, mechanical - connection. - In a prepayment meter, such as described in Specification 171,445, of the kind in which a measuring wheel is provided having teeth on each face, those on one face being engaged on the insertion of a coin into a rotatable coin-holder and those, on the other face. engaging a pinion which operates the valve-controlling mechanism, the coin, when inserted through a slot c' in a stationary adjustable price-change disc c, causes a tooth f<2> on a lever f pivoted at a<1> to the coin-holder a to engage the teeth on the front face of the measuring wheel h. The coin engages between the coin-mechanism casing e and an arm f<3> on the lever. The tooth f<2> is normally held out of engagement with the measuring wheel by a spring g. Backward rotation of the measuring wheel is prevented by a pawl engaging the teeth on its rear face.
Patent GB-1352102-A (GB)
Title: Lighting arrangement for vehicles
IPC: F21V23/04
Filed: 1972-03-29
Abstract: 1352102 Vehicle headlamp arrangements ROBERT BOSCH GmbH 29 March 1972 [30 March 1971] 14654/72 Heading F4R [Also in Dviision H1] In a lighting arrangement for a motor vehicle having two main headlamps, an additional headlamp is activated by an inertia switch 24 that is sensitive to change in the vehicle direction to illuminate curves in the road ahead, the switch 24, which is of cylindrical form and mounted with its longitudinal axis parallel to the transverse axis of the vehicle, has a central trough 32 in which an electrically conductive fluid, e.g. Hg, is disposed to make connection between a centre contact 33 in the trough and a respective one of end contacts 34, 35 when the switch is tilted or subjected to centrifugal force. The end walls 30 of the trough 32 extend at an obtuse angle to meet the upwardly displaced under or flattened regions 28, 29 at each end of the switch body. The electrodes 33, 34 and 35 may all lie at an angle to the plane of the flattened regions 28, 29 and the switch body may be coated with a protective plastics material 36, e.g. polyethylene. As shown in Fig. 5 switch 24 is mounted on the additional headlamp on a holder 43 supported on the reflector 39 that also houses the holder 41 for an incandescent lamp 42. A diffusing lens 40 having vertical corrugations 52 is cemented to the reflector 39. In one arrangement described two additional headlamps are provided activated by a single inertia switch, the headlamps being of the wide beam, fog lamp type giving a wide, diffused illumination, Fig. 1 (not shown).
Patent GB-1204316-A (GB)
Title: Improvements in or relating to electron emitting cathodes for irradiation machines
Inventor: MCCANN JOHN DAVID
IPC: H01J1/15
Filed: 1966-09-26
Abstract: 1,204,316. Cathode materials and processing; electron beam irradiation apparatus. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 26 Sept., 1967 [26 Sept., 1966; 29 Nov., 1966; 30 March, 1967], Nos. 42956/66, 53492/66 and 14684/67. Heading H1D. [Also in Division C7] An electron emissive cathode, for example for the electron gun of an electron irradiation machine, comprises a flexible plaited or woven filament of carbon or graphite coated with a thermionic emissive material. As shown, the flexible filament is a tubular sleeve 1 coated with lanthanum boride and loosely mounted on a wire 2 of tungsten or tantalum. The ends 3 of the sleeve may be copper plated to provide connection to supply leads 4 and the core wire 2, which may also be heated via leads 6, may be tensioned by spring mounting 7 or may be magnetically supported as described in Specification 1,138,769. The lanthanum boride coating may be formed by coating the sleeve with a slurry, prepared by grinding together lanthanum oxide, boron and carbon in proportion 9 : 3 : 1 by weight and adding distilled water, drying the coated sleeve in air, outgassing and subsequently heating to 1700 C. in a vacuum for a few seconds by passing a current through the core wire. Alternatively the lanthanum boride may be deposited on the sleeve as a slurry in amylacetate, by cataphoretic deposition or in power form by dusting on to a tacky surface formed on the sleeve. The filament, which may vary in length from a few inches to ten feet is preferably of low mass/unit length.
Patent GB-579380-A (GB)
Title: Improvements in or relating to wrought metal electrical resistance materials
IPC: C22C9/00
Filed: 1943-09-08
Abstract: 579,380. Electrical resistance alloys. COOK, M., ALEXANDER, W. O., and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Sept. 8, 1943, No. 14740. [Classes 72, 82 (i) and 82 (ii)] Wrought electrical resistance materials are made from an alloy containing 1-5 per cent silicon, 1-7 per cent aluminium, the balance being copper. Preferably the silicon content is between 2.5 and 4.5 per cent. Manganese may be present up to 3 per cent. Up to 0.1 per cent of phosphorus, up to 0.5 per cent of zinc or cadmium and up to 0.2 per cent of magnesium may be used to cleanse the molten alloy ; up to 0.2 per cent of nickel may be present but the total of these last mentioned elements should not exceed 0.5 per cent. Iron may be present as an impurity but should not exceed 0.25 per cent. The following elements may be used as grain refining agents; chromium, titanium, tellurium or selenium 0.05-1.0 per cent, zirconium 0.01-0.1 per cent, silver 0.001-0.1 per cent, or cerium 0.03-0.5 per cent. Altematively magnesium oxide, aluminium oxide or cerium oxide may be used in proportions between 0.05 per cent and 1.0 per cent. A suitable heat treatment for such of these alloys as are liable to internal phase transitions is an anneal at about 500‹ C. for 8-24 hours. In processing the alloys pickling and cleaning operations are preferably performed in aqueous solutions of dichromate and sulphuric acid or of sodium bifluoride and sulphuric acid.
Patent GB-451981-A (GB)
Title: A process for recovering vanadium from substances of poor vanadium content
IPC: C22B34/22
Filed: 1935-05-21
Abstract: Vanadium is recovered from substances of poor vanadium content which also contain alumina, for instance from bauxite, by decomposing the initial material with alkali hydroxide and/or alkali carbonate by a wet or dry process to obtain an alkaline solution which is concentrated to 20--40 DEG  B<\>ae., and cooled to 10--15 DEG  C. in the presence of alkali phosphates and arsenates to precipitate a mixture or complex salt of alkali vanadate, alkali phosphate, and alkali arsenate.  When the initial material does not contain phosphorus or arsenic, alkali phosphates and arsenates are added to the alkaline solution before the precipitation step.
Patent GB-715555-A (GB)
Title: Production of styrene copolymers
IPC: C08F16/36
Filed: 1952-06-12
Abstract: Styrene (50-99 parts) and 4 - acetyl-a -methyl styrene (1-50 parts) are copolymerized by heat.  Catalysts may be used, e.g. benzoyl and acetyl peroxides, t-butyl hydroperoxide and a -a 1- azodiisobutyronitrile in bulk or solution methods, and hydrogen peroxide, sodium percarbonate and perborate, potassium persulphate, per-acids, or other alkali metal salts thereof in aqueous emulsion methods, using as emulsifying agents, soaps, salts of sulphonated alkyl benzenes and triethanolamine salts.  The process may be continuous, the monomers may be added gradually and the catalyst portionwise.  The emulsions may be filtered or coagulated by freezing or by adding salts, acids or alcohol.
Patent GB-1028409-A (GB)
Title: Mixed chromium complexes of monoazo dyes
IPC: C09B45/16
Filed: 1963-04-16
Abstract: Mixed metal complexes of monoazo dyes are prepared by reacting in non-aqueous medium one mole of the 1 : 1-chromium complex of 1 - [21 - hydroxy - 61 - nitro - 41 - sulphonaphthyl - (11)] - azo - 2 - hydroxy - naphthalene with 50-56 mol per cent of 1-(21-hydroxy-51 -nitrophenylazo)-2-hydroxynaphthalene and 50-44 mol per cent of 1-(21-hydroxy-41-nitrophenylazo -2-hydroxynaphthalene. The dyes may be used to colour natural and synthetic polyamide materials in reddish or bluish black shades.
Patent GB-119712-A (GB)
Title: Improvements in the Manufacture of a White Pigment.
Inventor: MORRIS EDGAR FORD
IPC: C01G30/00
Filed: 1917-10-17
Abstract: 119,712. Morris, E. F., and Nevill, T. N. C., (trading as St. Helens Smelting Co.). Oct. 17, 1917. Antimony oxide for use as a pigment is purified from compounds of an acid nature by treating it preferably whilst suspended in air in a comparatively dry state with an acid-neutralizing body. Ammonia, an organic amine, or an atomized alkaline substance such as calcium borate may be employed.
Patent GB-637779-A (GB)
Title: Improvements relating to hockey sticks
IPC: A63B53/10
Filed: 1948-06-04
Abstract: 637,779. Hockey sticks. DUNLOP RUBBER CO., Ltd., VAUGHAN, G., and PETERS, H. June 4, 1948, No. 15060. [Class 132 (ii)] A hockey stick shaft comprises a central portion 1 of willow formed with opposite parallel faces to which are secured one or more composite layers each comprising a lamina of rubber 2 and a lamina 3 of birch, ash or hickory ; the wood and rubber being alternately arranged. The handle part (Fig. 3) has a lamina 4 of rubber secured to the shaft and a lamina 5 of obeche secured to the rubber layer 4. The shaft is turned off to the contour 10 (Fig. 4) and the handle to the contour 9 (Fig. 3). The shaft is spliced to the head with the planes of the laminµ parallel to the striking face and the splice is bound. In the part of the shaft adjacent the splice the rubber laminae are replaced by laminµ of ash, birch or hickory. In a modification, additional laminµ of rubber and birch &c. are secured to the laminµ 3. The willow portion 1 may be solid or laminated and the whole shaft may be spirally bound.
Patent GB-1437882-A (GB)
Title: Method of manufacturing incandescent filament lamps
IPC: H01K3/20
Filed: 1974-04-05
Abstract: 1437882 Electric incandescent lamps FABRIQUES REUNIES DE LAMPES ELECTRIQUES 5 April 1974 [9 April 1973] 15130/74 Heading H1F A method of manufacturing an incandescent lamp having a tungsten filament comprises the step of flattening and pinch-sealing one end of a borosilicate glass tube constituting the lamp envelope directly on to the limbs of the filament. The filament is supported in position during the sealing operation by a hairpinshaped wire of nickel or copper the ends of which are fixed to the filament limbs. After sealing, the curved portion of the hairpin is cut and removed, the remaining portions constituting the current supply wires.
Patent GB-405510-A (GB)
Title: Improvements in regulating means for dynamo electric machines
IPC: H02P5/68
Filed: 1933-05-25
Abstract: 405,510. Control of several motors; controllers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and FENEMORE, A. S., 11, Manor Green, Stafford. May 25, 1933, No. 15138. [Class 38 (iii).] In equipment for regulating the relative output or speed of a plurality of dynamo-electric machines, movement of a main regulator to one side of its mid-position regulates one group of machines, whilst movement to the other side regulates another group of machines or a single machine, and one or more similar subsidiary regulators are provided for the relative adjustment of machines or groups of machines in the abovementioned groups. In the equipment shown in Fig. 2 for regulating three machines their field windings F1-F3 are fed from a supply S, and a main regulator E2 having resistances R3, R4 effects relative regulation of the windings F3 and the windings Fl and F2, whilst a subsidiary regulator E 1 effects relative regulation of the windings F1 and F2. In the equipment of Fig. 3 (not shown) regulation of four machines is effected by the provision of a second subsidiary regulator similar to the regulator E 1.
Patent GB-593336-A (GB)
Title: Improvements in magnetic circuit and coil arrangements for electric vibrators, relays and the like
IPC: H01H50/76
Filed: 1945-06-15
Abstract: 593,336. Electromagnetic interrupters. PLESSEY CO., Ltd. June 15, 1945, No. 15246. Convention date, June 16, 1944. [Class 38(v)] [Also in Groups XXXV and XXXVIII] In a vibrator or relay in which an armature is situated in a constant magnetic field and is deflected by a second field produced by an energized coil the constant field is produced by a coil surrounding the two ends of an iron core and supplied with continuous current. The two coils are placed with their central openings in alignment, the armature extending into the two openings. Fig. 3 shows a vibrator in which a reed armature 39 carrying contacts 58, 59 is supported on a bolt 51 which also supports fixed contacts 60, 61. The armature extends into the openings of two coils 35, 36 the latter of which constitutes the driving coil to deflect the armature. Coil 35 encloses two pole pieces 62, 63 on the ends of an iron core comprising strips 33, 40 connected together at 41, the strip 33 being extended at 34 to constitute the support for the bolt 51. To maintain the armature in vibration a continuous current is supplied from a source 20 to the coil 35 as shown in Fig. 2, one pole of the source being also connected to the armature 39 and the other pole to the ends of the coil 36. The connection to the coil may be made through the centre tapped primary 18 of a transformer and the alternating current obtained in the secondary winding may be rectified by synchronous contacts operated by the armature. The apparatus may be used in indicator or annunciators, a visible signal being given by a disc attached to the end of the armature.
Patent GB-716829-A (GB)
Title: A process for melt spinning fibres from acrylonitrile polymers
IPC: H01K1/34
Filed: 1952-06-18
Abstract: Fibres are made from acrylonitrile by blending a polymer having at least 85 per cent. by weight in the polymer molecule of acrylonitrile with between 30 per cent. and 60 per cent. by weight of a plasticizer, extruding the blend by the application of heat and pressure into an inert atmosphere, cooling the extruded material and pulling away the solidified extruded fibre at a velocity of at least 30 times the jet velocity of extrusion.  The extrusion temperature may be between 140 DEG C. and 230 DEG C. and the pressure between 50 and 11,000 pounds per square inch.  The fibres may be extruded into air at room temperature and after being drawn away the solvent is removed by washing with water, acetone, alcohol, ether, or a chlorinated hydrocarbon.  The velocity of the solidified fibre may be between 1,000 and 7,000 yards per minute.  The solidified fibre may be relaxed and allowed to shrink at a temperature between 90 DEG C. and 200 DEG C. in air, water, steam, glycol, glycerine or mineral oil to obtain a crimped fibre.  From the extrusion jet to the take up means the fibre may travel between 20 and 30 inches.  Cold air may be blown on to the fibre to assist solidification.  The melt may be passed through a coarse sand filter prior to spinning.  The fibre may be cut into staple length prior to extraction of the solvent and relaxation of the fibre to obtain crimp.  The fibres may have a circular, "dog-boned" or cruciform cross section.  The polymer may be a co-polymer of acrylonitrile with 2-vinyl pyridine, N-acetyl morpholine, methacrylic acid, methyl acrylate, styrene, methacrylonitrile, methyl vinyl ketone, vinyl chloride, vinyl fluoride, vinylidene chloride, vinylidene fluoride, vinylidene chlorofluoride, vinylidene cyanide, butadiene, vinyl pyridine acrylamide, a N-mono-or disubstituted amide or a vinyl ether. The plasticizer may be tetramethylene cyclic sulphone, ethylene cyclic carbonate, N.N dimethyl formamide, N-acetyl morpholine, ethylene sulphite, N.N. dimethyl acetamide, N-methyl N-cyanoethyl formamide, N.N-dimethyl hydroxyacetamide, N.N- dimethyl methoxyacetamide, N-formyl hexamethylene imine, p-phenylene diamine, m- and pnitrophenol, succinonitrile, glycolonitrile, succinic anhydride, diglycolic anhydride, N.N1 diformyl piperazine, or a mixture of butyrolactone and ethylene cyclic carbonate.  U.S.A. Specifications 2,404,714 to 2,404,727, inclusive, 2,436,926, 2,486,241, 2,491,471 and 2,546,238, are referred to.
Patent GB-560393-A (GB)
Title: Improved device for preventing windows and doors rattling
IPC: E06B3/44
Filed: 1942-11-04
Abstract: 560,393. Preventing rattling of doors and windows. LEACHMAN, E. C. Nov. 4, 1942, No. 15541. [Class 20 (iii)] [Also in Group XXV] The rattling of windows and doors is prevented by a device comprising an eccentrically mounted disc 2 enclosed in a box 1, and secured to a pin 3 to the top of which is attached an - arm 5. The box is secured, in the case of a sash window, Fig. 4, to the top bar 9 of the lower sash, and, on rotation of the disc, the sashes are pressed apart and into contact with the guides on the. frame 10. By raising the arm by a knob 6 against the action of a spring 13, a pin 7 beneath the knob may be caused to engage apertures 8 in the top plate of the box and retain the arm in position. The eccentric disc has a covering 4 of rubber.
Patent GB-779384-A (GB)
Title: Improvements in or relating to loose leaf binders or files
IPC: B42F13/24
Filed: 1955-05-31
Abstract: 779,384. Loose leaf binders. SOENNECKEN, A. May 31, 1955 [May 29, 1954], No. 15660/55. Class 146(1). A loose leaf lever arch file binder operated by a single arm lever has a pawl and ratchet system having a cam disc with equidistant cams acting on the cranked spring pressed pivoting member so that at each downward movement of the lever arm, the cam disc is advanced one-half of the cam interval and the pivoting member moves through a distance equal to the vertical deviation of the lowermost cam to tilt the arches. The file comprises arches 4, for engagement with posts 2 (not shown), pivoting in lugs 3 on the base 1 and joined by a cranked part 6 with a shoulder 7 centrally notched at 8, the part 6 being pressed upwardly by springs 9. A combined ratchet wheel and cam disc 13 is pivoted at 12 to an upright support 11, the wheel having six teeth 14 and three cam pins 15 each with a roller 16 freely mounted thereon to engage and move with the cranked part 6. A lever arm 18 with finger key 19 is mounted on the support 11 by a pin 17 and is pressed upwardly by a spring 10, a slot 24 engaging over the pin 12 to limit movement. A pawl 21 is pivotally mounted at 20 on the lever arm 18 and is pressed by a spring 23 so that its tooth 22 engages the teeth 14. In the closed position shown in Fig. 1, the lowermost cam pin 15 engages in the notch 8 to hold the arches 4 closed. Downward pressure on lever arm 18 moves the cam disc to the position shown in Fig. 3 and the arches 4 are tilted, the shoulder 7 being engaged either side by the two cam pins 15 to limit the movement. Downward pressure on lever arm 18 then moves the next pin 15 to engage the notch 8, the arm 18 being returned at each operation by the spring 10. In a modification of the pawl, the spring 23 is dispersed with and the pawl engages the teeth by its own weight, an opposed lever arm and safety tooth being provided. Reference has been directed by the Comptroller to Specification 748,743.
Patent GB-674903-A (GB)
Title: Improvements in or relating to plain bearings
IPC: F16C33/14
Filed: 1949-06-13
Abstract: In making bearing liners a molten alloy or metallic mixture is centrifuged whereby the proportions of the constituents in inner and outer layers is made different and after cooling the single layer is formed into bearing liners, the curvature being reversed to present a soft antifriction face at the inner surfaces thereof. Aluminium containing 5 to 50 per cent, preferably 10 to 30 per cent of tin or lead or a mixture thereof and hardening elements, e.g. copper, magnesium, silicon, manganese, beryllium, boron, lithium, selenium and titanium, may be used.  An alloy comprising aluminium 86 per cent, tin 10 and copper 4 may be melted by heating to 750 DEG C., poured into a rotating cylindrical mould, preheated to 300 DEG -400 DEG C., to form a layer say 1/4 -inch thick, the speed being selected to produce the required degree of segregation.  Another suitable alloy comprises aluminium 78 per cent, silicon 10, tin 8 and lead 4. To promote the blending of lead with the aluminium, antimony may be added.