baber/WOPTO huggingface dataset:
Patent GB-251704-A (GB)
Title: Improvements in or relating to electric motor-generators
IPC: B60L1/00
Filed: 1925-02-10
Abstract: 251,704. Fletcher, G. H., and Metropolitan-Vickers Electrical Co., Ltd. Feb. 10, 1925. Motor - generators. -In a voltage-regulation system for a motor-generator set, changes of potential across the series field winding of the motor are utilized to effect a compensating variation of the field excitation of the generator. Fig. 1 shows a motor-generator forming part of the equipment of a traction system. The armature of the generator 3 is connected in series with an auxiliary winding 11 across the series field winding 4 of the motor 2. Variations of potential applied to the motor cause current to be diverted from or imposed upon the winding 4. This current flowing in the winding 11 compensates the generator and, in addition, the speed characteristics of the motor are improved. In a modification, Fig. 2, an exciter 13 having a series winding 15 is connected in series with the winding 11 across the winding 4. The generator may be compounded by means of an additional winding in series with the load.
Patent GB-902741-A (GB)
Title: Separation of plutonium
IPC: G21C19/46
Filed: 1946-02-06
Abstract: 902,741. Plutonium separation. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Feb. 6, 1946 [Jan. 20, 1945], No. 3811/46. Class 39 (4). In a plutonium recovery process which includes forming a carrier precipitate comprising a fluoride, the precipitate is formed under approximately neutral conditions so that it is easier to separate. The solution treated may be a nitric acid solution obtained by the bismuth phosphate precipitation process described in U. S. A. Specification 2,785,951. The solution is neutralized with sodium or potassium hydroxide and then solutions containing fluoride ions and lanthanum ions are added in either order to form a lanthanum fluoride precipitate. If the plutonium is in the reduced state it is carried down with the precipitate, while if it is in the oxidized state it remains in solution and impurities are carried down. After precipitation the solution may be reacidified.
Patent GB-712969-A (GB)
Title: Improvements in or relating to machine tools
IPC: B23C3/18
Filed: 1951-04-13
Abstract: 712,969. Milling turbine-blades. EX-CELL-O CORPORATION. April 13, 1951 [Oct., 10, 1950], No. 3827/53. Divided out of 712,904. Drawings to Specification. Class 83 (3) A machine tool for shaping turbine blades and other work comprises a rotating tool supported on a base, a spindle journalled in a frame for supporting the work, means supporting the frame for linear reciprocating movement whereby the work is fed past the tool and for pivotal movement towards and away from the tool, control means operative to confine the reciprocating movement of the frame within predetermined limits, and means for moving the spindle axially to vary the length of the cutting stroke within . said limits without affecting the reciprocation stroke of the frame. The machine is identical with those described in Specifications 712,904 and 712,970 in which the work W is carried by a spindle S3 in a frame 40 mounted to pivot about a horizontal axis and to reciprocate along the axis ; the means for moving the spindle axially consists of a cam 106 on the frame co-operating with a follower 108 on the spindle to vary the axial position of the latter when a shorter cutting stroke is desired, as when working upon the shorter side of a turbine blade.
Patent GB-1495852-A (GB)
Title: Method of treating waste water
IPC: C02F3/22
Filed: 1975-01-29
Abstract: 1495852 Aerating liquids BASF AG 29 Jan 1975 [30 Jan 1974] 3841/75 Heading B1C In an activated sludge aeration process a jet of liquid at a momentum density (i.e. the product of the mass flow per unit time and velocity, per unit area) of 10<SP>3</SP> to 10<SP>4</SP> N/m<SP>2</SP> is ejected from one or more nozzles, each having separate orifices for liquid and oxygencontaining gas, located adjacent the bottom of the reservoir, setting up momentum exchange with the mixture of waste water and activated sludge moving more slowly through reservoir at a momentum density of 50 to 10<SP>3</SP> N/M<SP>2</SP>, and causing a circulation in the vertical plane. In Fig. 1 an aeration ditch 1 has a central vertical partition 2 with nozzles 6 each having an associated impulse exchange tube 7 close to the partition and to the bottom of the ditch. The nozzle is supplied with air under pressure through a pipe 9 and with recirculated water/sludge mixture through a pipe 12. Due to the asymmetrical position of the nozzles the discharge 16 therefrom causes a helical flow of the liquid in the ditch. The nozzles may be inclined to the horizontal or vertical. Recirculated liquid may also be sprinkled on the surface from nozzles 18 to destroy foam. In another arrangement, (see Fig. 4, not shown) two nozzles may be placed at opposite ends of a diameter of a cylindrical tank. In a further arrangement (see Fig. 5, not shown) there may be two or more coaxial tanks (21, 22) having a bridge (25) rotatable about their axis and carrying a nozzle for each tank; flow through the tanks may be in parallel or series.
Patent GB-654088-A (GB)
Title: Improvements in or relating to the distillation of furfural
IPC: C07D307/48
Filed: 1948-02-10
Abstract: <PICT:0654088/III/1> Furfural which has been used as a solvent in the extraction of aliphatic unsaturated hydrocarbons is purified from furfural-polymer by steam-distillation at a temperature below 290 DEG F.; the vapours are condensed, and the condensate is allowed to separate into a purified-furfural layer and a water layer.  This water contains dissolved furfural and, in order to prevent loss, it is returned as a source of steam for the steam-distillation. The polymer is allowed to accumulate in the still, but the feed thereto is periodically interrupted while the steam-distillation is continued until the polymer content of the lower layer in the still reaches at least 90 per cent by weight, whereupon it is discharged; the feed to the still is then resumed.  A hydrocarbon feed is treated with furfural in extractive-distillation column 2, and the extract is stripped in column 8 to give unsaturated hydrocarbons overhead and stripped-furfural as residue.  Part of the stripped furfural is returned to the extractive-distillation unit and the remainder is subjected to steam-distillation in evaporator 14.  The overhead vapours from evaporator 14 are condensed in condenser 19, and the condensate is passed to separator 21 from which purified furfural is withdrawn via line 13, and water, saturated with furfural, is withdrawn via line 23. This water may be passed as such, via line 28 and perforated pipe 16, to evaporator 14 where it is vaporized in situ by coil 15; or it may be vaporized externally in vaporizer 24 before being supplied to evaporator 14.  It is preferable however, to use vaporizer 24 to supply most of the required heating while coil 15, which may be automatically controlled by a liquid-vapour interfacial lever controller applied to evaporator 14, supplies the balance.  Polymer is periodically withdrawn from evaporator 14 by means of line 17.  Although the recovery process may be carried out under vacuum it is preferable to operate at atmospheric, or under a slight positive, pressure in order to prevent the entry of air into the system, for oxygen promotes furfural-polymerization.
Patent GB-385772-A (GB)
Title: Improvements relating to devices for distributing air for ventilation and like purposes
IPC: F24F13/06
Filed: 1932-02-10
Abstract: 385,772. Ventilators. MARSHALL, J., 11, Cogan Street, Pollokshaws, Glasgow. Feb. 10, 1932, No. 3942. [Class 137.] An air-distributing device comprises a rotary part 3 having air outlet passages or vanes 4 provided with orifices 4a through which air issues and thereby causes a rotation of the said part, and means for supporting the rotary part so that it is capable of universal adjustment. As shown, the rotary part of the device is similar to that described in Specification 332,024, [Class 137, Ventilation]. Alternatively the device may be of the kind described in Specification 267,656, [Class 137, Ventilation], in which the vanes 4 are replaced by inwardly extending tubular passages. The device is supported from an air duct 10 by means comprising a ball member 8 attached to the device and seating in a bearing ring 9. In one form the bearing ring is attached to the device and moves on the surface of a ball member attached to the duct. The universal adjusting device is preferably of the type described in Specifications 228,440 and 282,323, [both in Class 137, Ventilation].
Patent GB-1466010-A (GB)
Title: Sulphur-organic acid adducts and the preparation of foamed  products therefrom
IPC: C08L63/02
Filed: 1975-01-29
Abstract: 1466010 Organic-sulphur foams CHEVRON RESEARCH CO 29 Jan 1975 [31 Jan 1974 10 May 1974] 3981/75 Headings C3C and C3R [Also in Division C2] A sulphur foam containing at least 50 weight per cent of sulphur is obtained by reacting a liquid polyisocyanate or polyisothiocyanate with an adduct obtained by reacting molten sulphur with an organic protonic acid, said sulphurorganic acid adduct containing protonic acid groups. The polyisocyanate reactant may be an aliphatic, aromatic or heterocyclic polyisocyanate, a preferred starting material being an aryl isocyanate containing 2 or 3 isocyanate groups, and the reaction may be carried out at a temperature of 110-180‹ C. Before, during or after reaction with the protonic acid, the sulphur may be reacted with a plasticizer therefor to obtain a modified sulphur compound which is more plastic at a given temperature than elemental sulphur; the plasticizer may be an inorganic compound, an organic aliphatic compound, or an organic carbocyclic or heterocyclic compound other than an aromatic compound having an hydroxy, amino or secondary amino ring substituent. The organic protonic acid may be a carboxylic, sulphonic, boron or phosphorus acid, but is preferably an unsaturated, dithio or mercapto carboxylic acid. In specific examples a mixture comprising mainly diphenylmethanediisocyanate and polymethylenepolyphenylisocyanate is reacted with the reaction product of (1) sulphur and acrylic acid; (2) sulphur, acrylic acid and talc; (3) sulphur, acrylic acid, talc and styrene; (4) sulphur, acrylic acid and styrene; (5) sulphur, acrylic acid and dicyclopentadiene; (6) sulphur, acrylic acid and dipentene dimercaptan; (7) sulphur, acrylic acid and polyphenylene sulphide; (8) sulphur, dithiodipropionic acid and polyphenylene sulphide; (9) together with a toluene diisocyanate and a diol preparation, with sulphur, acrylic acid and polyphenylene sulphide; (10) sulphur, acrylic acid, polyphenylene sulphide and polyethylene; (12) sulphur, α-olefin sulphonic acids and a phenol/sulphur adduct; (13) acrylic acidmodified aliphatic polysulphide; (15) sulphur, acrylic acid, aliphatic polysulphide; (16) sulphur, acrylic acid and aliphatic polysulphide with the incorporation of additional hydroxyl groups; (17) sulphur, bis-(2-hydroxyethyl)disulphide and dithiodipropionic acid; (18) sulphur, aliphatic polysulphide and acrylic acid, followed by reaction with additional sulphur and polypropylene filler; and toluene diisocyanate is reacted with the reaction product of (11) sulphur, dithiodipropionic acid and phenol/  sulphur adduct; and (15) dithiodipropionic acid-modified aliphatic polysulphide.
Patent GB-575198-A (GB)
Title: Improvements in machine for forming tubular fabric
IPC: D03D3/00
Filed: 1944-03-03
Abstract: 575,198. Sewing-machines. DEHN, F. B. (Lever Bias Machine Corporation). March 3, 1944, No. 4022. [Class 112] [Also in Groups VIII and XXVIII] Machines for special purposes; feeding long lengths; folding-devices.-A machine for forming tubular fabric comprises in combination, means, e.g., a sewing-machine, for joining sheet material into tubular form with a flat seam, the seam being disposed along the top of the tube, pulling means, e.g., rollers, for feeding the tubular material away from the joining means, a spring- pressed plate within the tube adjacent the joining means, to press upwardly on the seam immediately it has left the joining means and means within the tube to exert horizontal pressure thereon to flatten it out just before it is engaged by the pulling rollers, etc. Fabric, from supply, is led by rolls 11 to a tube-forming means 13, 17 adjustably carried by a standard 14, which fold the fabric into a tube with the overlap at the top. After passing through a sewing machine, or a machine for adhesively joining the edges of the fabric 12, the seam of the tube is pressed upwardly by a spring-urged plate 20 and the tube is then flattened horizontally by spring- urged pivoted arms 24 adjustable with respect to each other by a rack and pawl device 23, 27. The feed rolls 30 are such that the top feed roll, which is weighted, bears only on the tube at the seam, and feed the flattened tube to a take-up roll.
Patent GB-348081-A (GB)
Title: Improvements in means for anchoring door and window frames and the like
IPC: E06B1/60
Filed: 1930-02-06
Abstract: 348,081. Fixing door and window frames. SCHWARZE, P., Quelle 116, near Brackwede, Westphalia, Germany. Feb. 6, 1930, No. 4084. [Class 20 (iii).] Door and window frames are secured to walls by means of double-bent inturned edges d on the frames and corresponding slotted members on projections b formed on or attached to the ragbolts &c. c, which are slidable vertically thereon and adapted to be built into the wall.
Patent GB-1194972-A (GB)
Title: Aircraft Pressurization Outflow Valve
IPC: B64D13/04
Filed: 1968-01-26
Abstract: 1,194,972. Valves. UNITED AIRCRAFT CORP. 26 Jan., 1968 [24 April, 1967], No. 4111/68. Heading F2V. [Also in Division F4] A cabin outflow valve comprises two pivoted members 14, 16 connected together for synchronous movement by a linkage 18, 22, 26 and operated by an actuator 32. The member 14 moves outwardly of the aircraft skin to shield the outlet and the member 16 moves inwardly. In an automatic valve (Fig. 4, not shown) the link 26 is replaced by a piston and cylinder whose overall length can be varied by a control (60) responding to the cabin pressure regulator. The relative sizes of the members 14, 16 are chosen to take account of the difference in pressure between ambient and cabin air pressure so that the members 14, 16 substantially balance each other.
Patent GB-365822-A (GB)
Title: Improvements in or relating to hollow drill steels and the like
IPC: B24C3/32
Filed: 1931-02-10
Abstract: 365,822. Making tubes. AMEEN, E. and OLSSON, R., Hagfors, Sweden. Feb. 10, 1931, No. 4166. [Classes 83 (ii) and 83 (iv).] Cores.-In making hollow drill steel and similar hollow tools the bore is cleaned, after removal of the core or filling on which the steel &c. is formed by rolling &c., by driving or drawing through the bore a fluid medium, such as air, holding abrasive solid particles, such as sand. The fluid may be given a whirling motion so as to fling the solid particles against the walls of the bore.
Patent GB-158885-A (GB)
Title: Improvements in and relating to automatic weighing apparatus for use in the weighing of grain and so forth
IPC: G01G13/00
Filed: 1921-02-07
Abstract: 158,885. Poumade, T. M. Feb. 13, 1920, [Convention date]. Automatic-feed weighers.-In an automatic-feed weigher for filling sacks with grain, &c. the supply hopper 10 is provided with a pair of cylindrical major feed gates 12 and a smaller dribble feed gate 14 which is arranged to close an orifice in one of the larger gates 12. Below the feed gates is a sack ring 31 suspended from a compound - lever system 1, 6. Bearing beneath the lever 6 are two compensating levers 29, 30, for balancing the column of grain falling at cut off. After securing a sack to the ring 31 a chain 18 is pulled thus actuating levers 19 and rods 17 so as to open the feed gates which are then retained by catches 21, 23. A T-shaped lever 24 raises two hammers 25, 26 into engagement with arms 29<1>, 301 on the compensating levers. As the sack fills, the lever 6 rises followed by the compensating levers 29, 30 which successively liberate the hammers 25, 26. These in falling displace the catches 21, 23 and the major and dribble feeds are successively cut off. Weights 32, 33 may be adjusted on the compensating levers according to the nature of the grain to be weighed.
Patent GB-237310-A (GB)
Title: Improvements in or relating to the construction of machinery, and printing and other machines produced thereby
IPC: B41F13/00
Filed: 1924-02-20
Abstract: 237,310. Wood, H. A. W. Feb. 20, 1924. Machinery beds and frames. - To avoid the expense of machine-finished surfaces when manufacturing printing and other machinery, the parts to be connected are formed, during casting, with anchoring formations 2, Fig. 1, at the places where accurate mating surfaces are required and then said surfaces 6, 8, Fig. 3, are produced by securing over each formation 2 a corresponding master member 3 and filling, through a gate 5, the space thus formed with antimonial lead or like metal or alloy. Fig. 4 shows the method applied to a printing machine frame of known design to produce the feet 6 and seats 17, 20, 21, 36 and 16 for the ink fountains, for the ink cylinders 13, for the brackets of the distributing and fountain rolls 12, and for other machine elements. Perforations 15, 19, 22 and 25 are provided for the securing bolts.
Patent GB-1492562-A (GB)
Title: Semi-submergible submergible or sinkable structures
IPC: E02D27/52
Filed: 1975-01-30
Abstract: 1492562 Foundations for submerged structures OFFSHORE CONCRETE BV 30 Jan 1975 [30 Jan 1974] 04410/74 Heading EIH A sinkable structure e.g. an offshore platform, or a tunnel structure comprises a foundation with one or more cavities 11 with piles 8 sealingly disposed therein, and means e.g. a pump 13, for connecting each cavity to a source of fluid pressure, e.g. the external sea water. The fluid pressure can be used to drive the pile to form a foundation or with the aid of a pressure gauge (16), Fig. 10 not shown, to assess the pressures acting on the foundation. After driving the cavities 11 can be filled with solid ballast. In Fig. 9 not shown several cavities are interconnected by fluid lines (20), (21), which assists when the sea bed is not level. The piles can be concrete, Fig. 11 not shown, or hollow steel, Fig. 10 not shown, provided with a cutting tip (29) and holes (28) to allow sea water to exit from the interior of the pile casing. If required the structure can be subsequently removed from the site. Additional solid ballast 42 can be added to the foundation.
Patent GB-138935-A (GB)
Title: Improvements in clamping devices for slicing machines
IPC: B26D7/02
Filed: 1920-02-13
Abstract: 138,935. Berkel, C. F. M. van. Aug. 15, 1917, [Convention date]. Cutting slices in succession.-In a clamping-device for a slicing- machine, the actuating handle is provided with leverage, so that the material may be firmly clamped without strain on the part of the operator. The invention may be applied to the clamp described in Specification 138,907, the mechanism shown being combined with the operating handle. This handle 28, pivoted at 29, has two projections 30, 31. When the handle is lifted, the projection 31 engages the clutch member 17 and tilts this about a pivot 18 to engage a stop-21, in which position it is free on the upright 3. The upper clutch member 22 at the same time falls on to the top plate 16. When the clamping bar engages the meat the lever 28 is depressed, the projection 30' bearing against the clutch member 22, this member forming a fulcrum for the lever 28.
Patent GB-485220-A (GB)
Title: Improvements in electrodes and other articles made from nickel or nickel alloy
IPC: H01J19/30
Filed: 1937-02-15
Abstract: An electrode or other component (other than a component acting as a resistance) of an electric discharge tube or incandescent lamp consists at least in part of a nickel-zirconium alloy which is free from manganese and silicon, has nickel as the major constituent and contains 0,05 to 3 per cent of zirconium.  1 Kilogramme of pure nickel may be melted at 1500 DEG  C. in a non-oxidizing atmosphere in a crucible of aluminium oxide, magnesium oxide or zirconium oxide and 15 gms. of pure zirconium are added.  The alloy is cast into rods which are cleaned and swaged or rolled at 750-800 DEG  C. and shaped. The zirconium may be added in the form of its alloy with nickel or titanium.
Patent GB-1098011-A (GB)
Title: Photographic reproducing apparatus
IPC: G03B27/32
Filed: 1965-02-02
Abstract: 1,098,011. Photographic reproducing apparatus. H. DACQUAY. Feb. 2, 1965 [Feb. 3, 1964; Dec. 24, 1964], No. 4523/65. Heading G2A. In a photographic reproducing apparatus having an image of an original on a carrier 2 formed on photo-sensitive material 5 on a carrier 3 by an inclined mirror 6, the image is focused by an objective 8 mounted so as to move laterally between the position for maximum reduction III and an intermediate position II, and thence the objective is rotatable through 90‹ to the position I of maximum enlargement. In the position III the carrier 2 is in its lowest position and the carrier 3 is as far to the left as possible, and in the position I the carrier 3 is moved to the right by a bellows 21 arranged in light tight connection with a tunnel 22 in which the objective is laterally movable, the carrier 2 being in its highest position. The mirror 6 may be pivoted out of the way of the objective while it is turning between positions II and I. The apparatus is provided with a scale (29) Fig. 6 (not shown) of reduction or enlargement ratios, which scale is visible to an observer (30) so that he has only to position the carrier 3 in accordance with the desired scale of reproduction, and then displace the carrier 2 and objective 8 until he obtains a clear image of the original on a ground glass screen provisionally mounted in place of the photo-sensitive material 5.
Patent GB-862337-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02F7/00
Filed: 1959-02-10
Abstract: 862,337. Engine construction; valve-gear. GENERAL MOTORS CORPORATION. Feb. 10, 1959 [Feb. 24, 1958], No. 4587/59. Classes 7(2) and 7(6). Studs or bolts 126, Fig. 1, secure cylinder heads 18 and cylinder blocks 14 to transverse frames 104 seating within the crank-case 38 and journalling the crank-shaft 112, the blocks 14 and crank-case 38 being preferably die-cast of aluminium or magnesium alloy and being adhesively bonded together by a thermo-setting material, e.g. an epoxy resin; cylinder head parts 20, 22 are also bonded together. There is a built-up intake manifold 34 with a carburetter 32. Each frame 104 seats on a bulkhead 52 having coacting recesses 118, 122, Figs. 2 and 3, and which has a bore into which is press-fitted a bearing insert 56 for a cam-shaft operating inlet and exhaust valve rockers via hydraulic tappets 63 and push rods 94. Drain holes 86 are provided between seal rings 82, 84 coacting with wet liners 76.
Patent GB-343731-A (GB)
Title: Improvements in pianoforte actions
IPC: G10C3/16
Filed: 1930-02-11
Abstract: 343,731. Pianoforte actions and keyboards. WAGGETT, F. W., 9, Sylvan Road, Wanstead, London. Feb. 11, 1930, No. 4610. [Class 88 (ii).] In an action in which the top B of the jack coacts with an aperture A in the hammerbutt so as to act as the check, the parts are so proportioned as tc determine t h e depth of touch of the key,thus avoiding the necessity of making up the touch with the usual baize washers. The rail C carrying the set-off buttons G with which the jack-heels H are in contact at the check, is also strengthened, so as not to yield under pressure on the key, by an angle-iron D secured to brackets E and to the main rail M by screws S. The bracket E is also fixed to the hammer rest-rail R, and may carry the damper slap-rail F. Specification 205,607, [Class 88 (ii), Music &c.], is referred to.