baber/WOPTO huggingface dataset:
Patent GB-1058676-A (GB)
Title: A method of purifying dispersions of low pressure polyolefines
IPC: C08F6/02
Filed: 1964-06-03
Abstract: Dispersions of low pressure polyolefines obtained by using complex metal catalysts consisting of reducible compounds of metals of Groups IVb to VIb and VIII of the Mendeleef Periodic Table and hydrides or organic compounds of metals of groups Ia to IIIa of the Periodic Table, are purified by exposing the dispersion in the presence of the decomposing or washing liquid to an ultrasonic field, and then purifying in a conventional manner.  In the preferred process the dispersion is mixed between 20 DEG  and 80 DEG  C. with 0.1 to 10% of methanol or water, then conducted through an ultrasonic field in the frequency range 20 kc./s. to 1.5 Mc/s., the contact time being 0.5 seconds, then the methanol or water is separated and 1 to 20% of water is then added to the polyolefine phase which is then submitted at a temperature between 20 DEG  and 70 DEG  C. to a second ultrasonic treatment, frequency range 8 kc./s. to 1.5 Mc/s. and contact time 0.5 seconds, and finally the washing water is removed and the polyolefine obtained.
Patent GB-281792-A (GB)
Title: Loud speaker trumpet
IPC: G10K11/02
Filed: 1926-09-18
Abstract: 281,792. Paterson, C. A. Sept. 18, 1926. Loud-speakers. - A loud-speaker horn is of flat and very thin cross-section, so as to be capable of accommodation in the normal space behind an article of furniture such as a piano, and is provided with an overhanging hood 17 with side walls 19, which directs the sound forwardly and also serves as a means of support. Insulating strips 20, 21 of felt are preferably fitted as shown. The narrow end of the horn is fitted into a block 14 provided with a central passage 15, to which a sound-reproducing unit is attached.
Patent GB-1353635-A (GB)
Title: Coating composition for moist surfaces
IPC: A61K47/36
Filed: 1971-04-19
Abstract: 1353635 Pharmaceutical compositions E R SQUIBB & SONS Inc 19 April 1971 [10 March 1970] 23097/71 Heading A5B [Also in Division C3] A composition useful as a demulcent or as a pharmaceutical carrier consists substantially of from 5% to 30% by weight of a hydrocolloid selected from cellulose derivatives, vegetable gums and animal proteins and 0.1 to 10% of an emulsifying agent, the balance being a mobile non-aqueous liquid selected from mineral oils, volatile hydrocarbons which are liquid at room temperature, fatty acid esters of polyhydric alcohols and C 3-10  fatty alcohols, in which the hydrocolloid is suspended, with or without the inclusion of flavouring and/or colouring agents. The hydrocolloid may be a cellulose ether e.g. methyl cellulose, a cellulose alkyl hydroxylate e.g. hydroxymethyl cellulose, a cellulose alkyl carboxylate e.g. carboxymethyl (or -ethyl) cellulose, an alkali metal salt of a cellulose alkyl carboxylate e.g. sodium carboxy methyl (or ethyl) cellulose, gum acacia, guar gum, gum tragacanth or gelatin. Diagnostic or therapeutic compositions comprise a diagnostic or therapeutic agent, and, as a carrier, the above composition. The diagnostic agent may be a radiopaque substance such as urografin acid (3, 5-diacetylamino-2, 4, 6-triiodobenzoic acid) or barium sulphate.
Patent GB-392783-A (GB)
Title: Improvements in and relating to mercury boilers
IPC: F22B3/02
Filed: 1932-08-17
Abstract: 392,783. Mercury boilers. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Nerad, A. J. ; 1061, Glenwood Boulevard, Schenectady, New York, U.S.A.) Aug. 17, 1932, No. 23107. Convention date, Aug. 17, 1931. [Class 122 (iii).] In a mercury boiler, means are adopted to ensure that'the mercury wets the generating surfaces. The iron or steel forming the tubes is made chemically clean to ensure liquid contact. The tube is chemically cleaned by pickling, or by mechanical means, or is exposed to hydrogen for a few hours at a temperature of 950‹ C. which decarbonizes the steel to an appreciable depth. When the heat transfer surfaces are cleaned prior to putting the boiler into use, they are maintained in that condition by a coating of a suitable material 'which will prevent them from oxidation. The surfaces may be cleaned by adding sodium, potassium, or other alkali metal to the mercury to make an amalgam. In the case of sodium, 1/4 per cent by weight is added. Sodium hydroxide may be used. The resulting water and hydrogen are removed by an air pump. After the surfaces are cleaned, mercury may be substituted for the amalgam. Metals having a greater affinity for oxygen than iron, such as zinc and tin, may be added to the mercury, or the boiler may be coated initially with zinc or tin. In the boiler drum shown of the kind described in Specification 319,220, [Class 122 (iii), Steam engines, Kinds &c.], the inner surface of the tube 2 is made chemically clean. The core 3 is preferably of a material which is not wetted by mercury. Sodium or potassium is added to the mercury 10.
Patent GB-762251-A (GB)
Title: Improvements relating to the flash welding of cast iron
Inventor: BERG MANFRED WALDEMAR
IPC: B23K35/30
Filed: 1954-08-10
Abstract: 762,251. Welding by pressure. RORVERKEN I. GOTEBORG AKTIEBOLAG. Aug. 10, 1954, No. 23187/54. Addition to 727,675. Class 83 (4). The cast iron pieces flash welded together to form an article according to the parent Specification may have increased silicon contents such that the silicon plus carbon content does not exceed 6.2 per cent and/or increased phosphorus contents above 0.5 per cent if alloy substances for improving the tensile strength or decreasing the brittleness of the cast iron, e.g. manganese, vanadium, tungsten, titanium, cerium or magnesium are added. The cast iron pieces according to the parent Sepecification may have increased phosphorus contents to a maximum of 0.7 per cent if the condition is satisfied, the pieces being in the form of centrifugally cast tubes and may have if desired the increased silicon contents specified above.
Patent GB-321458-A (GB)
Title: Improvements relating to the delivery of liquids
IPC: B67D1/16
Filed: 1928-08-11
Abstract: 321,458. Morris, W. T., and Causer, J. Aug. 11, 1928. No Patent granted (Sealing fee not paid). Strainers: waste and residual liquid, catching and returning.-In a means for delivering and filtering a liquid a container 2 is connected to a pump 3 by pipes 4 and 5 between which is fitted a strainer 1. A drip tray 13 is connected to a waste can 15 which contains a valve arrangement 22, the valve being operated by a float. The valve arrangement 22 is connected to a supplementary strainer 39, and then to the main strainer 1. The liquid is drawn through the main system to the pump, but when the level in the waste can is such that the valve arrangement 22 opens, then the waste liquid is drawn into the main system at the strainer 1. Specification 3968/12 is referred to.
Patent GB-1091497-A (GB)
Title: A method of measuring the cutting force of bloom shears
IPC: G01L1/00
Filed: 1965-06-01
Abstract: 1,091,497. Electric selective signalling. ZAVODY V. I. LENINA PLZEN NARODNI PODNIK. June 1, 1965 [June 3, 1964], No. 23269/65. Heading G4H. In apparatus for measuring a short-time sudden machine loading such as the cutting force of bloom shears, the electric signal from a tensometer 1 is applied to a plurality of trigger circuits 3 with different thresholds, and the operated triggers set storage devices 4 for a period controlled by a timing device 5 set when the first trigger is operated. The outputs from the storage devices 4 are added and fed to an indicating or registering device 6.
Patent GB-708959-A (GB)
Title: Improvements in or relating to electric connectors
Filed: 1951-10-05
Abstract: 708,959. Two-part couplings. FITCH, C. K. Oct. 6, 1952 [Oct. 5, 1951], No. 23275/51- Class 38(1). A connector, particularly a bayonet-type adaptor, is formed in two parts 10, 11, the part 11 having passages 13 through which the leads are passed, bent over on the meeting face of parts 10, 11 and inserted in blind holes 16 spaced from passages 13. Splined holes 18 between passages 13 and holes 16 receive the ends of wood screws which pass through holes,2 in part 10, the screws engaging the leads to make electrical contact therewith and at the same time securing together the parts to, 11. Part 10 carries the bayonet pins 12 and the heads of the screws form the contacts. According to the Provisional specification the connector may be made in one piece with passages extending from one end to the side and back into the connector, the other end having holes for the screws which intersect the latter portions of the passages. Alternatively the passages may extend from one end face of the connector to the other where they meet other portions which extend out of or towards the side of the connector, the junctions between the two portions of the passages being intersected by holes for the screws.
Patent GB-969032-A (GB)
Title: Process for the production of basic ethers of bis-spiro-indanes
IPC: C07C35/32
Filed: 1961-06-27
Abstract: Basic ethers of bis-spiro-indanes are prepared by reacting hydroxy -bisspiro-indanes of the general formula: <FORM:0969032/C1/1> (wherein A and B are methyl or ethyl groups, X and Y are hydrogen, chlorine or bromine atoms, E is a hydroxyl, methyl or alkoxy group and F a hydroxyl group or, alternatively, E is a hydroxyl group and F a hydroxyl, methyl or alkoxy group, and the corresponding carbon atoms in the two halves of the molecule bear identical substituents), as such or in the form of their alkali metal phenolates, with reactive esters of amino-alcohols of the formula HO-Z-NR1R2 (wherein Z is a straight or branched C1- 3 alkylene radical and R1 and R2 are C1- 3 alkyl groups or, together with the nitrogen atom, form a pyrrolidine, piperidine, morpholine, piperazine or N-alkyl-piperazine ring), optionally followed by conversion to the corresponding quaternary ammonium compounds. The products possess a long-acting blood pressure lowering action.
Patent GB-918092-A (GB)
Title: Improved centrifugally-responsive fluid pressure governor
IPC: F16H61/00
Filed: 1961-06-28
Abstract: 918,092. Change-speed control. FORD MOTOR CO. Ltd. June 28, 1961 [July 1, 1960], No. 23369/61. Class 80 (2). [Also in Group XXIX] A two-stage, fluid-pressure governor for providing a pressure signal dependent upon the speed of rotation of a shaft 16 and suitable for controlling clutches or brakes in an automatic, multiple - speed, power transmission mechanism comprises a housing 10 secured to the shaft for rotation therewith and containing a low-speed valve 56 of high sensitivity and a high-speed valve 54 of relatively low sensitivity. Fluid under pressure is continuously admitted by way of passages 42, 90, 86 to a chamber 80 whence it flows, when the valve 56 is urged outwardly by centrifugal force, through a valve seat 68 to a chamber 78 where it acts on a larger-area portion of the valve to balance the centrifugal force. The fluid then passes through passages 92, 94, 98 to a chamber 113 and thence through a valve seat 116 to an outlet chamber 114 leading to the governed apparatus. At low speeds the valve 54 is urged radially outwardly by a spring 117 so that the seat 116 is unobstructed and pressure control is exercized solely by the valve 56. At a certain speed, however, the pressure in the chamber 113, acting on a large-diameter part 104 of the valve 54, overcomes the spring 117 and the centrifugal force on the valve 54 and causes the latter to control the pressure in the chamber 114 by co-operation of the part 106 with the seat 116. Each of the valves has an exhaust port 110, 75 opened by radially inward movement of the valve.
Patent GB-442736-A (GB)
Title: Improvements in or relating to high frequency transmitting apparatus
IPC: F16N7/30
Filed: 1934-08-13
Abstract: 442,736. Valve generating circuits. LORENZ AKT.-GES., C., 1, Lorenzweg, Tempelhof, Berlin. Aug. 13, 1934, Nos. 23378 and 23379. Convention dates, April 6 and May 28. [Class 40 (v)] A crystal-controlled oscillator operating on a fixed wavelength of 8 metres is modulated by a second variably tuned oscillator tuned to 160 metres. One of the resulting frequencies is utilized and the other separated out. The lower frequency oscillator is designed to be immune from frequency variations due to heat by constructing the oscillatory circuits and also the casing, of material insensitive to temperature changes. Also the generator is arranged to be insensitive to shocks and vibrations. Harmonics may be employed as the carrier frequency by using square form modulation and choosing the frequency ranges so that they border on their harmonics. The invention is specially applicable to ultra high-frequency transportable transmitters and facilitates change of waverange without the necessity of changing the quartz crystal. Specification 318,860, [Class 40 (v)], is referred to.
Patent GB-521092-A (GB)
Title: Improvements in or relating to the treatment of hydrocarbon mixtures
IPC: C07C7/06
Filed: 1938-08-09
Abstract: 521,092. Separating olefinic from paraffinic hydrocarbons. STEVENS, A. H. (Phillips Petroleum Co.). Aug. 9, 1938, No. 23465. [Classes 32 and 91] [Also in Group IV] Hydrocarbons having 4 or 5 C. atoms are separated into olefines and paraffins by fractionally distilling with reflux in presence of a quantity of sulphur dioxide, ethylene oxide, or methyl formate greater than is necessary to form minimum-boiling azeotropic mixtures with all the paraffins present. Suitable distillation temperatures range from-40‹C. to 100‹C. ; the process may range from 0.5-29.0 atmos. absolute. Preferably sulphur dioxide is used with C 4  hydrocarbons, methyl formate with C 5 . In an example, butenes are separated from butane by distillation at 0‹C. with sulphur dioxide. The dioxide may be added to the hydrocarbon mixture prior to or during the distillation, e.g. at above the point at which the hydrocarbons are fed into the fractionating tower. It may be removed from the fractions and returned to the process ; but the olefine fraction containing sulphur dioxide may be used direct for such purposes as making resinous olefine-sulphur dioxide products. The olefine and paraffin fractions containing sulphur dioxide may be resolved into hydrocarbons and dioxide by repeatedly redistilling at higher and lower temperatures, e.g., 100‹C. and 0‹C; or the initial distillate fraction (paraffin) may be redistilled at a lower temperature to produce a distillate poorer in sulphur dioxide and a residue predominantly dioxide which residue is used as reflux in the initial fractionation. The initial residue fraction (olefines) may be redistilled with excess of sulphur dioxide at a higher temperature to produce an olefinic residue practically free from dioxide, and a distillate rich in dioxide which is used as reflux in the initial fractionation; or reflux and pure hydrocarbons may be obtained by fractionally distilling the initial paraffin distillate and olefinic residue at a temperature higher than that of the initial fractionation. The initial paraffin fraction may be cooled, e.g., to below -5‹C. to form a lower layer mainly sulphur dioxide and an upper layer mainly paraffins; the lower layer may be used as reflux ; the upper may be freed from dioxide, e.g., by distillation at a different temperature.
Patent GB-931855-A (GB)
Title: Improvements in or relating to vehicles
Inventor: JONES RICHARD STANTON
IPC: B60V1/00
Filed: 1961-06-29
Abstract: 931,855. Ground effect machines. WESTLAND AIRCRAFT Ltd. May 10, 1962 [June 29, 1961], No. 23499/61. Class 4. Air for the engine of a ground effect machine is derived from the pressurized air flow which feeds the cushion forming air jets, the air passing through water content reducing means before reaching the engine. In the Figure an air cushion is formed below the vehicle base 1 by a peripheral jet 2 supplied through duct 13 from a centrifugal fan 7 driven through a gear box 5 by engines (not shown) in the engine housing 12. The fan air intake 4 is located in a region of minimum spray (when operating over water). Air for the engine(s) is tapped from duct 13 at the point where the duct curves downwardly to feed the peripheral jet, and passes through a series of slits 10 and a fine mesh filter 11 before reaching the engine housing 12. The centrifugal effect of the fan flings water droplets radially outwardly, to be collected by a water trap 9. Water collected by the filter 11 falls into a water trap 8, and the traps 8 and 9 are suitably drained. Deriving the engine air in this manner prolongs the engine life and overhaul period, and supercharges the engine. Cleaner engine air is also obtained when operating over sandy or dusty terrain. The engine exhaust gases may be directed rearwardly to provide a propulsive thrust.
Patent GB-897716-A (GB)
Title: Improvements in and relating to coilable metal rules
IPC: G01B3/10
Filed: 1960-07-06
Abstract: 897,716. Laminates. STANLEY WORKS. July 6, 1960 [July 10, 1959], No. 23595/60. Class 140. [Also in Group XIX] A process for encasing a coilable metal rule or other strip 6 in a transparent synthetic resinous film 16, preferably of polyethelene terephthalate, comprises passing the strip against rollers to coat both sides with an adhesive such as a polyester composition, passing the strip through a heating chamber to flash off the solvents and then applying the film. The film is folded round the strip by rollers and bonded thereto by additional rollers using a butt seam, or a lap seam 18.
Patent GB-869074-A (GB)
Title: Improvements in or relating to magnetic circuits
IPC: H04R11/12
Filed: 1957-07-25
Abstract: 869,074. Gramophone pick-ups. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 25, 1957 [July 28, 1956], No. 23600/57. Class 40 (4). [Also in Group XXXV] The reluctance of a magnetic circuit is variable by a rotary part made from anisotropic soft magnetic material having different permeabilities in two perpendicular directions. As applied to a phonograph pick-up a magnetic circuit includes a core part 24 containing a permanent magnet 26 and closed through a rotatable member 29 having easier magnetization in a direction x than in direction y. A second core part 25 having a reversed permanent magnet 27 is also closed by member 29 which carries winding 28 and a stylus 31. In the steady state the position attained by the member 29 is such that no resultant longitudinal flux exists in bar 29. Anti-clockwise movement allows more flux to flow from core part 24, giving a resultant downward flux in member 29. An upward flux results from clockwise movement and hence an alternating voltage is derived in winding 28 when the stylus vibrates. Extra core parts may be provided opposite parts 24, 25. Alternatively the permanent magnets 26, 27 may be omitted and a permanent magnet included in rotor 29, the core parts 24, 25 being provided with push-pull connected windings. Suitable anisotropic materials are the ferrites disclosed in Specification 822,097.
Patent GB-370307-A (GB)
Title: Improvements in apparatus for the preliminary opening of the shells of drawer boxes
IPC: B65B43/26
Filed: 1931-08-21
Abstract: 370,307. Setting - up collapsed boxes. UNIVERSELLE CIGARETTENMASCHINENFABRIK J. C. MULLER & CO., 48, Zwickauerstrasse, Dresden, Germany. Aug. 21, 1931, No. 23602. Convention date, May 18, 1930. [Classes 18 and 94 (i).] A collapsed shell a of a drawer and shell box is fed from a pile to plates f, g between which it is maintained with clearance by jets of compressed air blown along tubes h, i terminating in the middle of the plates, the blast causing suction effects on the shell as the air escapes between the shell and the plates and thereby opening the shell slightly preparatory to the usual wedge n opening it completely as it is fed therealong by a pusher m on an endless conveyer k. The lower tube i may be omitted or a succession of plates effect the complete opening of the shell.
Patent GB-1376210-A (GB)
Title: Dynamoelectric machine having an excitation system
IPC: H02K9/00
Filed: 1972-05-19
Abstract: 1376210 Transformers GENERAL ELECTRIC CO 19 May 1972 [22 June 1971] 23604/72 Heading HIT [Also in Division H2] A polyphase transformer 15, mounted within the casing 3 of a polyphase alternator 1, 2 as a part of its excitation system, has, for each phase a laminated core 30, a first single turn (current) primary winding 16a formed by a hollow conductor 31, a second (voltage) primary winding 19a, also formed of hollow conductors, and a secondary winding 23a. The primaries are star connected, the secondaries delta-connected. There may also be a D.C. saturating winding (Fig. 5, not shown). For cooling the transformer, hydrogen is circulated over a heat exchanger 25 through the hollow conductors 31, through ducts 30a in the transformer cores and generally throughout the portion 3a of the alternator casing occupied by the transformer, and liquid is circulated through the conductors of the second primary winding 19a.
Patent GB-245215-A (GB)
Title: Improvements in or relating to buttons for garments
IPC: A44B1/44
Filed: 1924-10-07
Abstract: 245,215. Swanson, L., and Wheeler, G. Oct. 7, 1924. Button-fasteners. -The button d is attached to the garment &c. c by means of a staple g having its ends clinched over a plate h which is secured to the back of the garment by clinching down pins or prongs integral therewith. The staple h projects through a button-hole in the garment and the button is free to slide along the staple, the sides of which are of Z-shape, as shown, to prevent relative movement inwards of the staple g and plate h.
Patent GB-802975-A (GB)
Title: Improvements in and relating to plastic structures comprising polyethylene terephthalate
Inventor: GATES WILLIAM ELLIOTT FREW
IPC: C08J7/052
Filed: 1955-08-17
Abstract: 802,975. Coated polyethylene terephthalate. IMPERIAL CHEMICAL INDUSTRIES, Ltd. July 20, 1956 [Aug. 17, 1955], No. 23679/55. Class 140. Films, coatings or other structures comprising polyethylene terephthalate are coated by exposing the surface of the structure, preferably after it has been oriented and heat set, (i) at a temperature of at least 150 C. to an atmosphere containing ozone as described in Specification 802,974, [Group IV (a)]; (ii) to a high voltage electric stress accompanied by corona discharge as described in Specification 715,914, [Group IV (a)]; or (iii) to a flame for a time insufficient to cause distortion thereof, prior to the application of an organic thermoplastic material that can be heat sealed at a temperature below the softening point of the polyethylene terephthalate. Specified thermoplastic materials, which may be applied as a hot melt, dispersion or solution, e.g. in water, aliphatic alcohols such as methanol or ethanol, or mixtures such as methanol-ethyl acetate, are gelatin; polyvinyl alcohol, acetate or butyral; butadiene - acrylonitrile; methyl methacrylate-methacrylic acid copolymer; copolyesters of terephthalic acid and another dicarboxylic acid, e.g. sebacic acid, with ethylene glycol, particularly those containing not more than 4 molecular proportions of combined terephthalic acid to one molecular proportion of combined sebacic acid; or an N- alkoxymethyl polyamide such as N-methoxymethyl polyamides, particularly polyhexamethylene adipamides having from 30 to 50 per cent of their amino hydrogen atoms substituted by methoxymethyl groups.