baber/WOPTO huggingface dataset:
Patent GB-1132804-A (GB)
Title: Process for extracting and concentrating europium
Inventor: ROMBAU PAUL
IPC: C01F17/00
Filed: 1967-01-30
Abstract: 1,132,804. Extracting europium. PRODUITS CHIMIQUES PECHINEY-SAINT-GOBAIN. 30 Jan., 1967 [31 Jan., 1966], No. 4475/67. Heading C1A. A mixture of trivalent soluble salts of rare earth metals including europium is treated with bivalent samarium, sulphuric acid and an alkaline-earth metal salt, such as barium sulphate intimately mixed with the bivalent samarium salt, the pH preferably being kept at about 4 with ammonium acetate. The precipitated bivalent europium sulphate and alkalineearth metal salt may be separated by fractional crystallization, or by treating the precipitate with nitric acid to redissolve the europium in its trivalent state. The bivalent samarium may be produced by reducing the trivalent samarium chloride in a chloride mixture of trivalent rare earth salts with sodium vapour or with calcium, at 750 C.
Patent GB-326629-A (GB)
Title: Improvements in taps or cocks
IPC: F16K5/22
Filed: 1929-02-11
Abstract: 326,629. Hodgson, H. W. Feb. 11, 1929. Plug cocks.-A tap or cockprovided for ready lubrication comprises a conical plug 3 held to its seating by an enclosed spring and provided with a lubrication passage 8 leading from the conical surface to the outside through a central passage 7 and a perforation 10 in a cap 9. On the application of a grease gun to the cap 9, the plug is forced off its seating and the lubricant passes evenly round the whole surface of the seating; the plug moves automatically back to its seating when the grease gun is removed.
Patent GB-881407-A (GB)
Title: Improvements in or relating to hydraulic impulse turbines
IPC: F03B1/00
Filed: 1958-02-12
Abstract: 881,407. Hydraulic turbines. TECHNICA ETABLISSEMENT. Feb. 12, 1958 [Feb. 13, 1957], No. 4537/58. Class 110 (3). An hydraulic turbine comprises a spiral casing provided with a central annular aperture directed towards the casing axis and lying in a central cylindrical wall of the casing, the space within the central annular aperture being free from any obstructing elements which might thwart a bi-lateral flowing of the working medium and a turbine wheel with bi-lateral discharge disposed with its inlet edges in front of the central annular aperture, the spiral casing having an unobstructed interior and the central portions of the central cylindrical wall, adjacent the annular aperture, being arranged to converge towards each other and towards the axis of the spiral casing and to be provided with sharp edges. The spiral flow is produced by a casing. Fig. 1, having a spiral outer wall 1 and a cylindrical inner wall 2 having as its longitudinal axis, the axis of the spiral casing. The wall 2 is formed of two opposed cylindrical portions, the inner parts 3 of which converge towards each other and towards the axis of the spiral casing. The angle between the parts 3 as measured from inside of the casing may be from 90 to 180 degrees. The side walls 4 are flat. The inner side walls 5 together with the inner wall parts 3 are movable towards each other to regulate the output of the turbine. The flow from the annular jet impinges on a bi-lateral bucket-wheel as claimed in Specification 856,281 in which the buckets 26, 27, Fig. 5, open alternately towards opposite axial sides of the wheel. Throttle flaps 32 are provided in the outlet channels and walls 33 are provided to break up or prevent any regular flow. In a modification, Fig. 6 (not shown), the flow is controlled by a spiral band attached to the outer spiral wall at one end and displaceable relatively to it at the other. This band is connected to a rotatable cylindrical member having a thread on its exterior surface which carries the lower edge of the annular orifice. To prevent fouling of the space between the band and the spiral casing and between the walls 4, 5, an opening is provided in the spiral band or the wall 5. The nozzle mouth may be kept free from fouling by one or more rods penetrating into the central annular aperture and rotatable about the axis A-A. A jet deflector may be inserted between the annular aperture and the inlet edges of the turbine wheel for control purposes. The spiral casing may be provided with external stiffening ribs.
Patent GB-996485-A (GB)
Title: Aminoketone derivatives
IPC: C07D295/116
Filed: 1962-02-06
Abstract: The invention comprises compounds (analgesics) of the general formula <FORM:0996485/C2/1> (wherein Y is the radical of cyclopentanone, cyclohexanone, a C1- 6 alkyl or C1- 6 alkoxy substituted cyclohexanone or 1-tetralone attached to the rest of the molecule at a position which is alpha to the keto group, and R1 is a hydrogen or halogen atom or a C1- 6 alkyl group) and pharmaceutically acceptable acid addition salts thereof, and their preparation by reacting YH with formaldehyde or paraformaldehyde and a compound of the formula <FORM:0996485/C2/2> (wherein X is a halogen atom) in a solvent, optionally followed by conversion to the free base or a different acid addition salt.
Patent GB-583046-A (GB)
Title: Mounting or supporting bodies on the frames of motor vehicles
IPC: B62D24/02
Filed: 1944-03-10
Abstract: 583,046. Road - vehicle body suspension. METALASTIK, Ltd., and GARRARD, A. March 10, 1944, Nos. 4544 and 7204. [Classes 108 (ii) and 108 (iii)] A body mounting system comprises two laterally spaced vertically rigid (or substantially rigid) connections one on each side of the vehicle located longitudinally near to the centres of configuration or mass of the body and two pairs 'of vertically resilient connections located one at or towards the front and the. other at or towards the rear and spaced laterally of the body. The central (vertically rigid) supports may be helical or volute springs or multiple rubber sandwich mountings and may be more widely spaced laterally than the end connections. Further suitable central connections comprise a horizontal rubber bush mounting, Fig. 10, and a conical rubber bush mounting, Fig. 8. In the latter, excessive downward movement is checked by contact of a top clamping disc 29 with the top of an outer sleeve 24 and rebound is checked by a lower disc 30 engaging a rubber buffer 31. Helical or volute springs may also be used for the end vertically resilient connections depending oh the stiffness of the spring. Other suitable end connections may comprise laminated springs, Fig. 5, a vertically arranged rubber bush mounting, Fig. 7, and a multiple shear sandwich type mounting, Fig. 18. In the last construction, rubber elements 43, bonded respectively to a central member 44 secured to the body, and members 45, secured to the chassis, carry the normal load, while shock loads are absorbed by an extension on member 44 engaging a rubber block 46. Springs of steel, bonded rubber or non-bonded rubber may be used independently or in combination for end or central connections and may be used in conjunction with other springs employed for horizontal cushioning. The central connections may consist of a group of connections arranged somewhat behind the unloaded centre of mass of the vehicle and further pairs of vertically resilient connections may be provided intermediate the end and central connections.
Patent GB-683218-A (GB)
Title: Improvements relating to the processing of linear polyester materials
Inventor: PICKUP LESLIE WHITTAKER
IPC: C08J7/14
Filed: 1950-02-23
Abstract: The processing, e.g. dyeing, of polyethylene terephthalate and like highly polymeric polyesters containing at least one aromatic nucleus in each recurrent structural unit is improved by treatment of chips, powder, filaments, or fabrics of the polyester with sulphuric acid or a derivative thereof, e.g. chlorsulphonic acid, at a concentration between 70-90 per cent by weight, and at temperatures between -10 and 110 DEG  C. and removing the acid after the treatment by washing. Concentrations above 85 per cent produce stiffening or parchmentizing of the material while concentrations below 77 per cent effect delustring.  In examples: (1) polyethylene terephthalate fabric is treated for 15 minutes at 15 DEG  C. in 83.5 per cent sulphuric acid; the treated fabric is squeezed, washed first in water and then in 2 per cent solution of disodium hydrogen phosphate, and dyed with Dispersol Crimson BS; (2) the same fabric is treated with 85 per cent acid for 1 minute at 15.5 DEG  C., or (3) with 77 per cent acid at 94 DEG  C. for 2 hours.ALSO:The processing, e.g. dyeing, of polyethylene terephthalate and like highly polymeric polyesters containing at least one aromatic nucleus in each recurrent structural unit is improved by treatment of filaments or fabrics of the polyester with sulphuric acid or derivative thereof, e.g. chlorsulphonic acid, at a concentration between 70-90 per cent by weight and at temperatures between -10 and 110 DEG  C. and removing the acid after the treatment by washing. Concentrations above 85 per cent produce stiffening or parchmentizing of the material while concentrations below 77 per cent effect delustring.  In examples: (1) polyethylene terephthalate fabric is treated for 15 minutes at 15 DEG  C. in a 83.5 per cent sulphuric acid bath.  The treated fabric is squeezed, washed first in water and then in 2 per cent solution of disodium hydrogen phosphate, and dyed with Dispersol Crimson BS; (2) the same fabric is treated with 85 per cent acid for 1 minute at 15.5 DEG  C.; (3) with 77 per cent acid at 94 DEG  C. for 2 hours.
Patent GB-849479-A (GB)
Title: Improvements in or relating to a method of securing thin metal meshes to supporting means
Inventor: BROWN PATRICK HAROLD
IPC: H01J29/02
Filed: 1956-02-15
Abstract: 849,479. Making electrical components; welding by pressure; stretching. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 5, 1957 [Feb. 15, 1956], No. 4678/56. Classes 83 (2) and 83 (4). In securing a thin metal mesh to supporting- means the mesh and means are forced together under such a high pressure that the mesh and means become secured together without using a cement or a high-temperature such as is required for brazing. A silver or gold-plated silver mesh of six hundred bars per inch pitch and thickness of 0.0002 inch and a circular or rectangular copper or copper nickel alloy frame which may be gold- or silver-plated, are pressed together at room temperature under a pressure of 50 tons per square inch for 5-60 seconds between rigid flat plates in a press. A layer of indium may be plated on the frame. The frame should be ground flat where it contacts the mesh or alternatively a thin sheet of elastic material having a smaller Young's Modulus and greater compressive strength than the frame is interposed between the mesh and the plate adjacent thereto. After securing the frame and mesh the gold-plated silver mesh is tautened by heating in air to 300‹ C. as described. in Specification 689,564 or if an unplated mesh is used, by heating to 600-650‹ C. in a reducing atmosphere. According to the Provisional Specification the frame may be of gold-plated silver and the frame and mesh may be of copper or nickel.
Patent GB-991210-A (GB)
Title: Improvements in shuttle boxes for looms for weaving
IPC: D03D49/52
Filed: 1963-02-05
Abstract: 991,210. Shuttle boxes; swells. W. R. BROOKSBANK. Jan. 24, 1964 [Feb. 5, 1963], No. 4752/63. Heading D1E. A shuttle box and swell has a lining C, C<SP>1</SP> of leather or plastics material having its initial impact area a treated to withstand the impact. The area a may be treated with paraffin wax with a melting point of up to 140‹F. or with hard setting crystalline wax with a melting point of up to 190‹F. The remainder of the lining may be treated with wax having a melting point of up to 125‹F.
Patent GB-641599-A (GB)
Title: Improvements in or relating to thermionic valve circuits
Inventor: WHITE ERIC LAWRENCE CASLING
IPC: H03K4/04
Filed: 1947-02-19
Abstract: 641,599. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Feb. 19, 1947, No. 4755. [Class 40 (vi)] A circuit for producing a waveform having a component of which the instantaneous amplitude is proportional to the square of the instantaneous amplitude of the input signal comprises a thermionic valve having at least two control electrodes, each capable of independently controlling the electron stream, the same input being applied to the control electrodes, the output being derived from an untuned circuit. The circuit may be used in a calculating machine or for deriving a parabolic " bend-correetion waveform from a sawtooth voltage in a television transmitter, Fig. 2 (not shown). Fig. 1 shows a circuit in which the input waveform is applied via transformer 6 to the control electrodes 2, 3 of a hexode valve 1 in opposite polarity, the potentiometer 10 being adjusted until the ratio of input signals is such that the required output voltage is obtained across load 17. Fig. 3 shows a modification in which the input signal is applied to the control grid 2 and electrode 3 is held at a fixed potential relative to earth by network 14, 19, the cathode resistor 20 causing the effective voltage between electrode 3 and cathode to vary in the opposite direction to that between electrode 2 and cathode. In a further modification, Fig. 5, the output waveform has a component proportional to the amplitude of the input signal in addition to one which is proportional to the square of this amplitude.
Patent GB-1374372-A (GB)
Title: Acylated beta-aminoalkylaziridines
IPC: D06M13/48
Filed: 1972-02-02
Abstract: 1374372 Textile treatment agent BADISCHE ANILIN-& SODA FABRIK AG 2 Feb 1972 [3 Feb 1971] 4802/72 Heading D1P [Also in Division C2] A softener and agent for improving the laundering durability of textiles comprises an acylated #-aminoalkylaziridine of the formula: or of the formula: wherein A is an m-valent fluorine-free (C 10 -C 27 ) aliphatic radical, an m-valent (C 6 -C 10  aromatic radical having valencies in the meta- or paraposition, an m-valent (C 7 -C 10 ) araliphatic radical or a radical of the formula: B is a 2n-valent (C 6 -C 10 ) aromatic radical having at least two valencies in the ortho-position; m is 1 when A is a radical of the above formula, or 1, 2 or 3; n is 1 or 2; and R<SP>1</SP> and R<SP>2</SP> are hydrogen or methyl. Example 23 describes the application of a finishing agent containing stearic-#-(N-ethyleneimino) ethylamide and a finishing agent based on ethylene urea, melamine and formaldehyde to a rayon fibre.
Patent GB-397150-A (GB)
Title: Improvements in or relating to portable electric hand lamps
IPC: F21L4/00
Filed: 1932-02-18
Abstract: 397,150. Battery lamps. JOHNSON, J. F. W., 3, Carlisle Street, Westminster Bridge Road, London. Feb. 18, 1932, No. 4844. [Class 39 (ii).] In portable electric battery lamps of the kind comprising a handle which completes the circuit on the lamp being raised thereby, a catch provided between the handle and the lamp body is operable by a movement of the handle to hold the latter in the circuitclosing position. In one form the handle 9, Fig. 1, made of resilient strip metal, is secured at its upper end to the body of the bulb support by a bolt 8 connected to the centre contact of the bulb, the lower end of the handle being formed with a hook 10 which bears against the head of a screw 12 when the lamp is lifted by the handle, thereby completing the circuit through a plate 11 in contact with one of the contact strips of the battery. To maintain the circuit closed the handle 9 is depressed so that the hook 10 engages under the head of the screw. In another form, Fig. 2, the handle 9 is secured to the bottom of the lamp, the upper end of the handle being slotted at 14 to engage a screw 15 and provided near its end with a rib 16 which is normally in staggered relationship to, and out of contact with, a rib 17 near the end of a metal strip 7 extending through a slot 13 in the insulating body of the lamp. A helical spring 18 around the screw 15 tends to hold the free upper part of the handle in its lowermost position. When the lamp is lifted by the handle the spring 18 is compressed and contact is made. To maintain the contact when the lamp is placed on a support the handle is pushed towards the lamp until the rib 16 engages behind, and in contact with, the rib 17. The movement of the handle may be provided for by hinging it to the container.
Patent GB-548314-A (GB)
Title: Process of preparing sulphanilamide derivatives
IPC: C07D277/52
Filed: 1941-04-11
Abstract: 548,314. Sulphonamido compounds. ABBOTT LABORATORIES. April 11, 1941, No. 4863. Convention date, April 29, 1940. [Class 2 (iii)] 2 - p -Aminobenzenesulphonamido - thiazoline and -alkylthiazolines are prepared by reacting a p-acylaminobenzenesulphonyl halide with 2-aminothiazoline or a nuclear-alkyl derivative thereof and hydrolysing off the acyl group. The products possess therapeutic properties. An example is given of the preparation of 2-paminobenzenesulphonamido-thiazoline using pacetylaminobenzenesulphonyl chloride, whilst the 5-methyl-, 4:4-dimethyl-, 4:4-dimethyl-5- methyl- and the mono- and di-4 and 5-ethylproducts are also referred to.
Patent GB-511367-A (GB)
Title: Improvements in or relating to electric meters for measuring high frequency power
IPC: G01R21/02
Filed: 1938-02-16
Abstract: 511,367. Power meters. SIEMENS & HALSKE AKT.-GES. Feb. 16, 1938, Nos. 4874 and 4875. Convention dates, March 24, 1937 and March 30, 1937. [Class 37] Measurements of high-frequency power by the difference of the squares of the sum and differences of two quantities derived from the currents and voltage circuits are effected by a current transformer secondary winding connected to two series-connected thermal, diode, or dry-surface rectifying or conversion circuits producing the current quantity, and a resistor connected on the transformer and rectifier circuit for producing the voltage components. The voltage circuit is made either to a midpoint terminal or to end terminals of the converter circuit. In Fig. 1, the apparatus is housed in a casing 1 provided with voltage terminals 2, 3 and terminals 4, 5 connected to load 6. The transformer secondary winding 8 is tapped at its centre on to the primary and is in series with two thermo-converters 15, 16, the junctions of which are connected in opposition to a moving coil instrument 17. The voltage connection is completed through resistor 9 and midpoint terminals on the converters 15, 16 and winding 8. In Fig. 5, the transformer windings comprise two series opposed halves 8, 8<1>, the voltage connection being made through resistors 20, 21 and at the ends thereof, the junction of the resistors 20, 21 being connected to the common junction of the rectifier circuit. A double diode 22 has its cathode connected between the resistors 20, 21 and its anodes to the coils of a double moving-coil instrument 25, the effective conversion circuits being series-connected. Two separate diodes may be employed, or in their place, grid-controlled valves may be used, and the moving-coil instrument may have a single coil operated differentially. The current transformer and instrument 25 can be arranged outside the casing 1.
Patent GB-1493972-A (GB)
Title: Removing contamination from textiles
IPC: D06B9/04
Filed: 1975-02-06
Abstract: 1493972 Removing contamination BRUCKNER APPARATEBAU GmbH 6 Feb 1975 [28 Feb 1974] 5011/75 Headings DIB and D1P Water-soluble contaminants, e.g. size, dye or soil are removed from a textile material by first applying to the material water as a liquid in a wetting zone and expelling the water and dissolved contaminants, by applying an organic liquid immiscible with the water in a treatment zone, the material being removed from the treatment zone without contacting the expelled water. The organic liquid may be perchloroethylene. The textile material and/or first liquid may be heated to improve solubility of the contaminant. In a first embodiment for removing water - soluble size, Fig. 1, a web of grey cloth 1 is passed to a trough 2 containing water and a desizing agent, and through squeeze rolls 3 and a residence section 4 to a container 5 wherein an organic solvent is sprayed onto the cloth through nozzles .6. The wash liquor containing the expelled water and size from the web passes to a distillation apparatus 7 in which the organic solvent is separated and returned to the nozzles 6 whilst the aqueous phase is subjected to a concentration for re - use. Residual solvent is removed from the cloth in a drier. Instead of spraying the organic liquid, the web containing the water may be immersed in a tank of the organic liquid, so that the expelled water rises to the surface and is removed therefrom. the web being guided out of the tank without contacting the contaminant-containing phase. Applications:- Using water optionally containing a detergent as the first liquid, the water-soluble thickening agents of a printing paste and unfixed dye may be removed from a printed and steamed textile web, smearing of the dye preferably being prevented by an inserted foil between overlying folds of the material, the aqueous phase being expelled from the web with an organic solvent. Non-oily soil may be removed from a web using water and a detergent as the first liquid, the aqueous phase being expelled by an organic solvent. Preferably the first liquid is applied in the minimum amount necessary to dissolve the contaminant e.g. 50-250% owf for removing size. The textile materials which may be treated may be of synthetic fibres e.g. polyamide, polyester, polyacrylonitrile, acetate and mixtures of such fibres.
Patent GB-161044-A (GB)
Title: Improvements in the spring suspension of vehicles
IPC: B62K25/04
Filed: 1920-02-19
Abstract: 161,044. Williams, T. L. Feb. 19, 1920. Spring devices.-A motor-cycle spring suspension comprises a stem C carried by a clip D on the frame, a spring A surrounding the stem and engaging a collar A<2> sliding thereon, a barrel D<3> enclosing the stem and spring, a spindle E carried by the barrel, a, lever F on a cam on the spindle inside the barrel and engaging the collar A<2>, and an external lever G on the spindle and connected to the forks K either directly or through a link J approximately at right-angles to it. As shown, an additional collar B<2> and a recoil spring B may be employed. Alternatively, the spindle E may be in line with the stem C and have a lever or cam on each side of it so that movement of the lever G in either direction compresses the spring.
Patent GB-1309219-A (GB)
Title: Cloth-board reel
IPC: B65H75/06
Filed: 1972-02-03
Abstract: 1309219 Cloth-board reels J T YOVANOVICH and M BERGER 3 Feb 1972 [19 Feb 1971 1 June 1971] 5062/72 Heading B8R A cloth-board reel comprises a plastics core 12 having a covering 26 of absorbent foraminous paper, there being flutes 22 provided between the core and the paper so that inner surface areas of the paper 26 are in communication with the atmosphere, whereby the trapping of moisture between the reel and the innermost coil of cloth wound thereabout is prevented. The paper 26 may cover the two flat faces of the core only, and may be received in recesses in the faces (Figs. 4 to 6, not shown).
Patent GB-1357043-A (GB)
Title: Fluid flow control devices
IPC: F16K15/14
Filed: 1972-02-03
Abstract: 1357043 Valves B I GROOMBRIDGE 1 Feb 1973 [3 Feb 1972] 5087/72 Heading F2V A valve arrangement, for domestic water cisterns, comprises two flexible sleeve-like valve members 5,. 6 attached to a T-section pipe. These members may be made by folding a sheet of polyethylene vinyl acetate and welding along the edge: they distend to permit flow in one direction and collapse to prevent reverse flow. When the tank 3 is being filled, valve 5 opens and discharges fluid in a silent manner beneath the surface. In the event of suction conditions occurring in the main supply pipe 2, valve 6 opens to break the vacuum.