baber/WOPTO huggingface dataset:
Patent GB-924234-A (GB)
Title: Catalytic process
IPC: B01J27/18
Filed: 1961-02-14
Abstract: A lithium phosphate catalyst is activated with a liquid hydrocarbon containing at least six carbon atoms at a temperature of between about 125 DEG C. and about 300 DEG C. and at a pressure sufficient to maintain said hydrocarbon in the liquid phase.  The activated catalyst may be used to isomerize a gaseous alkylene oxide to an alcohol (see Group IV(b)).  Preferably a leached basic lithium phosphate is used, this being prepared by precipitating a basic lithium phosphate, preferably by reacting a soluble lithium salt with a soluble phosphate in substantially stoichiometric amounts to produce lithium phosphate in the presence of at least 0,2 moles, preferably 1 to 2 moles of alkali metal hydroxide or other basic alkali metal compound per mole of lithium orthophosphate.  The precipitate is then leached 3 to 5 times with a large volume of water, preferably at a temperature of 50 DEG  to 95 DEG C.  The resulting leached basic lithium phosphate catalyst has essentially a composition corresponding to lithium orthophosphate, but contains residual excess alkali metal hydroxide or other basic alkali metal compound equivalent to 0,05 to 1% by weight of the alkali metal. Hydrocarbons which may be used to activate the catalyst include aromatic hydrocarbons e.g. benzene, toluene; saturated and partly saturated cyclic hydrocarbons e.g. decalin and dimethylcyclohexane; paraffinic hydrocarbons and naphthenic hydrocarbons e.g. tetrahydronaphthalene.  Generally 1 to 25 volumes of hydrocarbon are used per volume of catalyst and the treatment is generally applied by circulating fresh hydrocarbon through the catalyst, generally for 2 to 10 hours.  The activating hydrocarbon can be removed from the catalyst by towering the pressure and, if necessary, by passing a stream of inert gas e.g. nitrogen, through the catalyst. Specifications 603,815 and 902,019 are referred to.ALSO:A gaseous alkylene oxide containing 3 to 5 carbon atoms is isomerized to an alcohol using a lithium phosphate catalyst (see Group III) which is activated with a liquid hydrocarbon solvent containing 6 or more carbon atoms per molecule.  The rate of feed of liquid alkylene oxide may be varied from space velocities of about 0.3 to 2.0, preferably 0.5 to 1.0; the space velocity being defined as the volume of liquid feed per hour divided by the volume occupied by the catalyst. Residence time in the reaction zone within the above range is about 2 to 50 seconds, and the reaction temperature is within the range of about 250 DEG  to 350 DEG C., preferably at about 275 DEG  to 300 DEG C.  By this method propylene oxide can be isomerised to allyl alcohol, and butylene and amylene oxides, particularly the 1,2-oxides, can be isomerised to the corresponding alcohols.  The most effective solvents for activating the lithium phosphate catalyst are aromatic hydrocarbons, particularly the methyl-substituted aromatic hydrocarbons.  Specifications 603,815 and 902,019 are referred to.
Patent GB-1513225-A (GB)
Title: Treatment of polyurea microcapsules
IPC: C08G18/30
Filed: 1977-02-10
Abstract: 1513225 Polyurea microcapsules STAUFFER CHEMICAL CO 10 Feb 1977 [17 Feb 1976] 5488/77 Heading B8C [Also in Division C3] The residual isocyanate level of polyurea microcapsules is reduced by contacting them with ammonia or an amine. In examples polyurea microcapsules are contacted with ammonia, dibutylamine, diethylamine and dipropylamine; the microcapsules contain S-ethyl diisobutyl thiocarbamate, methyl parathion, O - ethyl - S - phenyl ethylphosphorodithioate and O - ethyl - S - parachlorophenyl ethylphosphorodithioate.
Patent GB-745918-A (GB)
Title: An adjustable and retractable step
IPC: B60R3/02
Filed: 1953-02-27
Abstract: 745,918. Vehicle steps. CHADWICK, H. E. Feb. 25, 1954 [Feb. 27, 1953], No. 5520/53. Class 108 (1). [Also in Group X] A tread member 13 is supported in a horizontal position by extensions 20 provided with slots 21 engaging a transverse rod 17 and hooked ends 22 engaging pins 23 on a frame 12, which frame is movably connected by scissor pivoted links 8, 9 to supports 1 adjustably bolted to the vehicle floor or chassis. The links 9, 8 have ends which slide in slots 11 and 15 of the supports 1 and the frame 12 respectively, the relative positions of the links determining the height of the step, and the links are fixed in position by pivoted bars 16 having teeth 18 which engage a rod 14 connecting the lower ends of the links 8. The tread 13 may be pivoted upwardly through its pin and slot connections to disengage the hooks 22, and may then be turned back to a stowed position beneath the frame 12, a spring being provided to retain the tread stowed.
Patent GB-696779-A (GB)
Title: A process and apparatus for concentrating liquids
Inventor: HOLMES WILLIAM RAYMOND
IPC: C01B15/013
Filed: 1951-03-07
Abstract: <PICT:0696779/III/1> Hydrogen peroxide solution is concentrated by passing it from the tank 15 to the lower part of a long tube 13 which also receives hot vapours, in this case, from the separator 8.  The liquid and vapours from the tube 13 are passed to a separator 16, from which part of the liquid is piped back to the tube 13 and part is piped to a receiver as the final product, in this case, via an evaporator 1 and a separator 8.  The vapour from the separator 8 is passed, co-current with water or a dilute hydrogen peroxide solution from the tank 23 up a second long tube 21 which leads to a separator 24.  The vapour from the separator 24 passes to a condenser which yields liquid for use in the tank 23, while the liquid from the separator is piped, in part back to the tube 21, and in part back to the tube 13.  In place of single long tubes 13 and 21, as shown, a number of tubes may be placed in parallel. The evaporator 1 may be a bulk or climbing film evaporator, while the separators may contain baffles or be of labyrinthine form.
Patent GB-384286-A (GB)
Title: An improved zincification process
IPC: C23C2/02
Filed: 1931-02-23
Abstract: Iron and steel articles, particularly wire, are cleaned electrolytically before coating with zinc in a molten bath.
Patent GB-115084-A (GB)
Title: Improvements in Switches for Miners' Electric Lamps.
IPC: F21L4/00
Filed: 1917-04-25
Abstract: 115,084. Davis & Son, J., and Davis, W. H. April 25, 1917. Battery lamps.-A switch for a miner's or other lamp comprises a ring 5 having an internally projecting tongue 13 which forms the movable contact and is preferably knife-edged. The ring loosely surrounds two abutting insulating disks 4, 7, one or both disks being flanged so as to form a groove for an internal flange 6 on the ring. Stationary switch contacts consist of screws 15, 11<a> respectively securing the upper disk to the flanged lamp-holder and the lower disk to the battery case. Other screws fasten the two disks to gether. A recess in the lower disk allows of par. tial rotation of the ring and tongue.
Patent GB-385787-A (GB)
Title: Method of and apparatus for sterilising liquids, such as beer or the like
IPC: C12H1/18
Filed: 1932-02-26
Abstract: 385,787. Sterilizing beer &c. MOND, A. L., 19, Southampton Buildings, London.- (Berndorfer Metallwarenfabrik A. Krupp Akt.-Ges. ; Berndorf, Austria.) Feb. 26, 1932, No. 5815. [Class 49.] In apparatus for sterilizing beer and other liquids by heating under pressure, e.g. 8-15 atmospheres, the sterilized liquid issues through a controllable aperture of progressively increasing cross-sectional area and having a large surface area to give a gradual and regulatable fall in pressure, the liquid issuing under any desired pressure down to atmospheric. The apparatus may be used for sterilizing beer at a pressure exceeding the saturation pressure of its carbon dioxide content at the sterilizing temperature. In one form, beer is forced by a pump through a preheater A, a sterilizer B and a cooler C having heating jackets and a cooling jacket respectively, and leaves through a tapered pipe G. A cone H operated by a hand-wheel n is slidably mounted within the pipe G to enable the cross-sectional area of the outlet to be varied.
Patent GB-1486486-A (GB)
Title: Manufacture of bags
IPC: B65B9/20
Filed: 1975-02-12
Abstract: 1486486 Making bags SIG SCHWEIZERISCHE INDUSTRIE-GES 12 Feb 1975 [13 Feb 1974] 5872/75 Heading B5D [Also in Division B8] A method of making bags comprises spreading apart opposite side walls of a tube 5 at a region below the bottom end of a rectangular crosssectioned mandrel 3 on which the tube is shaped, transversely seaming the spread apart region to form a bag bottom which includes projecting ears (33) Figs. 3 and 5 (not shown), drawing a length of the tube from the mandrel by gripping and pulling on the ears (33) and cutting the drawn off length to form the open top of the bag. The method may be performed automatically and continuously, in which instance the seaming and cutting steps are performed at the same time during the formation of successive bags. The tube is drawn off the mandrel into a box 51 or a sleeve, which supports the bag as it is conveyed through filling and closing stations. An apparatus for performing the method comprises the mandrel 3 which is hollow and axially displaceable, spreader arms (20) Fig. 2 (not shown) mounted within the mandrel 3, a heated transverse welding jaw 11, knife 13 and associated counter-members 12, 14, and reciprocable tongs 35 for gripping the ears (33) and drawing the tube from the mandrel 3 into the box 51 or sleeve. A web 2 is folded around the mandrel 3 by a folding box 4 and welded longitudinally by welding jaws 6 to form the tube. Ear folding members (50) Fig. 6 (not shown) which are movable relative to the mandrel, may act to insert the ears into the clamping jaws of the tongs 35 so that the ears become doublad over or they may displace the ears into vertical planes for engagement by the tongs.
Patent GB-1093432-A (GB)
Title: Improvements relating to the balancing of shafts
IPC: F16F15/32
Filed: 1965-02-10
Abstract: 1,093,432. Balancing shafts. BOLL8- ROYCE Ltd. Feb. 10, 1965, No. 5877/65. Heading F2U. A mass 17 attached to a shaft 10 mounted in bearings 11, 12 prevents, at one critical speed, distortion of the shaft arising from its asymmetric mass distribution and a clearance between the shaft and one of the bearings. Calculations to determine the mass 17 and its position 11 from the bearing 12 are provided.
Patent GB-197760-A (GB)
Title: An improved machine for use in the manufacture of ice cream and the like
IPC: A23G9/18
Filed: 1922-02-28
Abstract: 197,760. Wilson, J. Feb. 28, 1922. Solidifying and then removing films.-A rotary cooling-drum 1 on which cream &c. is spread in a film and solidified is filled with uncongealable liquid such as brine, while carbonic acid or other volatile refrigerant is evaporated through a stationary coil 2 in the drum. The refrigerant is circulated by a pump 4 through a coil 6 and receiver 3 forming parts of an ordinary compression refrigerating system. The cream &c. is supplied to the drum from a trough 7 fitted with rotary beaters 9, and is removed when frozen by a scraper 10. Reference has been directed by the Comptroller to Specification 8093/03.
Patent GB-1405726-A (GB)
Title: Spark plug terminal
IPC: H01R4/22
Filed: 1973-02-07
Abstract: 1405726 Spark plug connector ESSEX INTERNATIONAL Inc 7 Feb 1973 [11 Feb 1972] 5930/73 Heading H2E An electrical connector, particularly for a spark plug, comprises a central portion 8 bent to form a tube with a seam 9 separated by slots 10, 11 to form a cable crimping portion 1 and another tubular portion 3, surrounded by spring clips 5, for fitting the plug. An elongated indentation, the bottom cross-section of which is arcuate in both transverse and axial crosssection, is formed on portion 8 by placing it between the parts 13, 15 of a die and punching with a tool 18, Figs. 4 and 5. The seam 9 may be diametrically opposite or at 90 degrees to the punch. The indentation may then be punched with another tool wide enough for the indented portion to fit closely within the undeformed part. The tube 8 may be bent about the indented portion in a die, Fig. 10, dimensioned to provide an included angle of 90, 110, 130 degrees between the ends of the tube. The connector may be provided with an insulating sleeve.
Patent GB-236889-A (GB)
Title: Improvements in or relating to bore hole pumps
IPC: F04D29/60
Filed: 1925-03-04
Abstract: 236,889. Sulzer FrÞres Soc. Anon. July 11, 1924, [Convention date]. Mountings. - A bore-hole pump is provided with a spherical seating 3 between its casing 1 and support 2, so that even if the pump and support are relatively inclined, the load on the support is uniformly distributed.
Patent GB-941391-A (GB)
Title: Travelling wave tubes
IPC: H01J25/38
Filed: 1960-02-19
Abstract: 941,391. Travelling wave tubes. SPERRY RAND CORPORATION. Feb. 19, 1960, No. 5949/60. Addition to 815,459. Heading H1D. In a travelling-wave tube apparatus having a helix or other slow wave structure there are two polepieces 13, 21, one of which, 21, has a radial or nearly radial aperture for the passage of the end of the slow wave structure or a conductor connected thereto and surrounds the end of the slow wave structure and the other end of the slow wave structure or a conductor connected thereto is led out adjacent or longitudinally through the second polepiece 13. The far end of the other end of the slow wave structure or conductor connected thereto is brought out longitudinally, Fig. 1, or radially, Fig. 4 (not shown), or is brought out radially between the end of the helix and the collector-polepiece. In the latter case the magnetic field windings 47-49 are of conductive foil instead of wire. The feeders are coaxial lines and the polepieces 21 at the gun end also serves as the gun anode. The output end of the helix is a strip 25 of progressively increasing width and fused quartz blocks 18 space the inner and outer conductors of the output coaxial line. A vacuum-tight glass seal is shown at 38. The solenoids 47, 48, 49 are wound on a non-ferromagnetic former 46 and have non-ferromagnetic spacers 51-54. The magnetic field strength is adjusted by varying the energization of the three solenoids or by mechanically adjusting the relative position of the tube and focusing coils. The electron beam from spherically concave cathode button 19 has a minimum diameter at the entrance to the magnetic field. The helix has three ceramic support rods held in holes in the collector and which have a diameter less than or greater than the helix diameter. In the latter case the helix dispersion is compensated for.
Patent GB-248754-A (GB)
Title: Improvements in and relating to starting synchronous motors
IPC: H02P1/46
Filed: 1926-03-03
Abstract: 248,754. British Thomson-Houston Co., Ltd., (Assignees of Stevenson, A. R.). March 3, 1925, [Convention date]. Synchronizing dynamo-electric machines. - A synchronous motor started under load is brought up to synchronous speed by the help of an auxiliary induction motor acting as a frequency changer. The synchronous motor 10 provided with the usual short-circuited secondary starting windings is initially supplied from constant frequency mains 18. When the motor has run up to a speed below synchronism. a switch 17 is opened and switches 21 and 20 are closed so as to take current through a transformer 22 from the secondary of an induction motor 23. By applying a friction brake 24 the speed of the induction motor is gradually reduced so as to increase the frequency of its secondary e.m.f. and thus bring the motor 10 into synchronism, after which the switches 21 and 20 are opened, and the switch 17 closed.
Patent GB-1446161-A (GB)
Title: Mixing valve assembly
IPC: F16K11/18
Filed: 1975-02-12
Abstract: 1446161 Valves OEDERLIN & CIE AG 12 Feb 1975 [21 Feb 1974 30 Dec 1974] 5989/75 Heading F2V A mixing valve has a rotatable plug for varying the ratio of hot to cold flows from inlets 3, 4 into passages 15 16, and a valve 33 for varying the total flow though a mixing chamber 26 into a passage 28 leading to the outlet 9. A central O-ring 36 separates the hot and cold inlets to the plug while a screw 22 limits rotation of the plug. The valve 33 may be operated by a lever (49, Fig. 3) through a cam or the mixing chamber may have a common vertical axis with the plug (60, Fig. 4). In a further embodiment, the passage (79, Figs. 5 to 10) connecting the mixing chamber to the valve outlet is not controlled by the valve 33.
Patent GB-897792-A (GB)
Title: Improvements in and relating to apparatus for cleaning vacuum milking plant
Inventor: SKETT HERBERT EDWARD
Filed: 1960-02-19
Abstract: 897,792. Milking machines. FULLWOOD & BLAND Ltd., R. J. Feb. 20, 1961 [Feb. 19, 1960; June 27, 1960], Nos. 6034/60 and 22485/60. Class 5(1). [Also in Group XXVIII] Vacuum milking plant is cleaned by utilizing the pulsating suction device to circulate washing and rinsing liquids through the plant via teat cups 5 connected to reduced pressure pipeline 4 and placed in wash tank 1 filled with washing liquid. Control means 3, driven by the pulsatory suction device, controls valves 8, 25 by means of slide valve 59 actuated by rotary cam 27 so that the washing liquid is circulated for 5 to 20 minutes. Wash tank 1 is then emptied, loss of vacuum being prevented by cut-out valve 67, and refilled with rinsing liquid from supply vessel 2. The rinsing liquid is circulated for 5 minutes then the wash tank is emptied and the plant switched off automatically by the control means 3, pin 34 operating microswitch 36. An additional supply vessel and controlling cam means may be provided to permit pre-rinsing before washing and rinsing.
Patent GB-1490425-A (GB)
Title: Surgical sponge
IPC: A61L15/64
Filed: 1975-02-12
Abstract: 1490425 Sponges made by freeze-sublimation AMERICAN CYANAMID CO 12 Feb 1975 [25 March 1974] 6053/75 Heading C3C A surgical sponge of a synthetic tissue absorbable polymer, which is polyglycolic acid (i.e. a homopolymer or copolymer of glycolic acid containing up to 15 wt. per cent of lactic acid units), poly(N-acetyl-D-glucosamine or a polymer of 4-methyl-1,4-dioxane-2,5-dione is made by dissolving the polymer in hexafluoroisopropyl alcohol or hexafluoroacetone sesquihydrate, freezing the solution and subliming off at least the major part of the solvent. In the examples the sponge was sterilized with ethylene oxide optionally in dichlorodifluoromethane. The sponge may have a fibrillar structure as in Figs. 1-6 (not shown).
Patent GB-497122-A (GB)
Title: Improvements in agricultural machines, particularly potato and turnip harvesters
IPC: A01D33/12
Filed: 1938-02-25
Abstract: 497,122. Adjusting the height of rootcrop harvesters &c. LANZ AKT.-GES., H. Feb. 25, 1938, Nos. 6059 and 6060. Convention dates, March 8, 1937 and March 17, 1937. [Classes 6 (i) and 6 (iii)] A potato or turnip harvester of the type supported on two main wheels d and a rear supporting wheel h has the main wheels mounted on a cranked shaft c and the rear wheel on a cranked shaft f, the forward end of the shaft f being provided with an arm i carrying a pivoted member k through which a handactuated screw l, engaging a pivoted nut m on an arm n projecting from the shaft c, passes. By actuating the screw l the shaft f may be turned relatively to the shaft c and so the height of the rear of the machine adjusted independently of the height of the forward end. A lever bracket o pivoted on the shaft c has an arm p bearing on the crank x of the shaft c, and this bracket may be rotated to force the crank arm downwards by a handled screw s passing through a nut q pivoted on the bracket and secured in a bearing r on the main frame. By operating the screw s, the crank-shaft c is turned and also, through the arm n and the screw l, the shaft f. The main frame of the machine may be in the form of tubes enclosing the shafts c, f.
Patent GB-355770-A (GB)
Title: Improved method of and means for propelling water craft
IPC: B63H1/16
Filed: 1930-02-24
Abstract: 355,770. Turbines. PRATT, A. M., 13, Bruce Street, Cooks Hill, Newcastle, New South Wales, Australia. Feb. 24, 1930, No. 6063. Convention date, Feb. 28, 1929. Void [Published under Sect. 91 of the Acts]. [Class 110 (iii).] A turbine is combined directly with a screw propeller. An open-ended casing 24 has arms 33 supporting the shaft 37 of a propeller the blades 34 of which carry a rim 36. The rim acts as a turbine rotor and has blades 46 co-operating with fixed blades 47 to which steam is fed from the annular chest 26. A vertical supply pipe connected to the trunk may be used as a trunnion about which the gear is swung for effecting steering of a ship. In a modification, the motive fluid is fed through two diametrically opposed pipes forming steering trun. nions, one lead supplying steam and the other furnace gases. The method of securing the turbine blades is shown in Fig. 8. The propulsion element may be duplicated, the second propeller being actuated by a turbine for astern running.
Patent GB-353863-A (GB)
Title: Manufacture of dyestuffs from heterocyclic nitrogen compounds
IPC: C09B23/06
Filed: 1930-02-24
Abstract: Cyclammonium polymethine dyes are obtained by reacting indole or a substituted indole having a free b - position with the condensation products of a substituted formamidine H,C(NHR) : NR1, in which R and R1 are hydrogen or aryl residues (one at least being aryl) and a heterocyclic nitrogen compound containing reactive methyl or reactive external methylene groups. The polymethine bridge appears to be linked to the b -carbon atom of the indole molecule in the resulting products, which dye silk and tannined cotton in brilliant shades. Reaction is preferably carried out in the presence of a solvent such as acetic anhydride. In examples (1) the reaction product of 2-methylbenzoxazole ethiodide and diphenylformamidine (see example 4 of Specification 344,409), [Group VIII], is condensed with a -methylindole; it dyes tanned cotton greenish-yellow; (2) 2,3,3-trimethylindoleninium methiodide replaces 2-methylbenzothiazole ethiodide in the above example (cf. example 1 of Specification 344,409); the product dyes yellow-orange; if the corresponding benzothiazole is employed instead of the benzoxazole an orange dye is obtained.  Specification 334,706, [Class 2 (iii), Dyes &c.], also is referred to.
Patent GB-610559-A (GB)
Title: Thermally insulated containers
IPC: B65D81/38
Filed: 1946-02-27
Abstract: 610,559. Heat insulated containers. WINGFOOT CORPORATION. Feb. 27, 1946, No. 6086. Convention date, Nov. 30, 1945. [Class 64(ii)] [Also in Group XVII] A light - weight container for low-temperature storage of perishable goods &c. comprises a body 1 and lid 4 and has walls 2 and 5 of heatinsulating material, whose thickness is determined by the temperature to be maintained and the period of preservation, enclosed in a film 3 of rubber hydrochloride. The heatinsulating material has a weight - insulation factor less than 0.50 (density in lb. per cubic foot multiplied by conductivity in B.T.U. per square foot, per hour, per 1‹F, per inch) and the thickness of the walls is preferably about ¢ inch. The capacity is from one pint to one gallon. The container may be reinforced by cardboard and wires, or it may be collapsible. Examplies of heat-insulating materials are: -expanded urea formaldehyde resin, " cat-tails " and cellular silica.