baber/WOPTO huggingface dataset:
Patent GB-1038025-A (GB)
Title: Lightweight material and production thereof
Inventor: SCHILLER KENNETH KURT
IPC: C04B30/00
Filed: 1963-08-16
Abstract: A lightweight material having a bulk density not greater than 25 lbs. per cu. ft. consists of a lightly packed mass of acicular CaSO4 crystals, and is prepared by cooling a solution of CaSO4 in a solvent in which solubility decreases with decrease in temperature and from which large (1 mm. in length or more) acicular crystals are formed and separating the crystals so formed. A mineral acid (e.g. 15% H2SO4 or 10% HCl) is a suitable solvent.  The starting material may be gypsum.  The hot saturated CaSO4 may be prepared at 90 DEG  C. and slowly cooled (up to 25 DEG  C. per hour) to precipitate crystals, gentle agitation may be applied.  The crystals may be freed from solvent and a shaped mass obtained by lightly pressing in a mould. An adhesive (e.g. an animal glue) may be applied to improve the dimensional stability of the shape.
Patent GB-1384448-A (GB)
Title: Vehicle control system
IPC: B60R25/04
Filed: 1972-07-12
Abstract: 1384448 Preventing unauthorized use of I.C. engines WASO Ltd 19 April 1973 [12 July 1972] 32659/72 Heading F1B Vehicle control system comprises a manually operable control switch and an auxiliary device adapted to operate in response to actuation of the switch to control a vehicle fuel supply system, the device comprising an electric motor connected to a driven member connected in turn to a control valve, so that in one position of the switch the motor drives the valve to a closed position and in another position of the switch the motor drives the valve to an open position. Motor 1 drives through a pinion 4 a gear-wheel 5 which rotates in a bearing 11 and has a threaded bore 6, causing axial displacement of a member 7. One end of the inner wire 8 of a flexible cable is connected to the member 7 and the other end is connected to a lever 17 adapted to control a fuel valve. Nipple 13, adjustably clamped on the wire 8 engages a peg 23 to move a limit switch 22 to stop the motor 1. Movement in the opposite direction ceases when the end of member 7 engages and moves the peg 23. When the keyoperated ignition switch is moved to the "ON" position, a two-way switch is moved to a first position to complete the motor circuit and drive the fuel valve to the open position. As the valve reaches the open position, the limit switch reverses the connections to the motor and simultaneously opens the motor circuit. When the ignition switch is moved to the "OFF" position, the two way switch is moved to a second position and completes the motor circuit. The motor then runs in reverse until the fuel valve is closed.
Patent GB-411037-A (GB)
Title: Improvements relating to gas meters
IPC: G01F3/22
Filed: 1933-11-23
Abstract: 411,037. Gas meters. GOEDECKE, C. E. J., The Hives, Mosley Road, Trafford Park, Manchester. Nov. 23, 1933, No. 32735. Convention date, June 15. [Class 54.] The slide valves 23, 24 of a gas meter are operated to shut off the supply of gas to the measuring chambers before the diaphragms reach the ends of their strokes as described in Specification 394,794 by connecting the valves by links 52, 53 to an arm 50 which, in Fig. 2, is pivoted at a pin 49 to the outer end of the lagging flag-arm 41 and is connected by a link 51 to the leading flag-arm 42. The flag-arms are coupled by links 39, 40 to cranks set at 90‹ apart on a shaft 34. As shown the flag-arm 41 is in its mid-positions while the valve 23 has passed its mid-position by a distance V. In another construction shown in Fig. 6, the arm 50 is pivoted to the leading flag-arm 42 between the flag-rod 44 and the point of attachment of the link 40. In a third construction shown in Fig. 8 the flag-arms are connected by links 51, 50<a> to the arm 50 which is pivoted to one valve 23 and operates the valve 24 through a pin and slot connection 26. The slide valves may reciprocate in line or be arranged to turn.
Patent GB-670603-A (GB)
Title: Method and apparatus for depositing of metal by electric arc
IPC: B23K9/038
Filed: 1949-12-21
Abstract: 670,603. Welding by fusion. LA SOUDURE AUTOGENE FRANCAISE. Dec. 21, 1949 [Dec. 28, 1948; Sept. 1, 1949], Nos. 32747/49 and 32748/49. Class 83 (iv). In the depositing of metal by an electric arc, the speed of an electrode cluster parallel to the surface on which the metal is to be deposited is varied with the thickness of the deposit and the current intensity applied to the electrode cluster is made greater than the current intensity usually supplied to a single electrode but is less than the intensity applied to a single electrode but is less than the intensity applied to a single electrode multiplied by the number of electrodes in the cluster. The electrode cluster 18 comprises two or. more electrodes arranged in a single or number of rows, triangular or ring formation, insulated from each other and electrically connected in parallel. In the arrangement shown in Fig. 4 for depositing metal on the ends of worn railway rails 12, 13, the electrode cluster 18 is held in a holder 16 supported by a roller 17 and movable by a handle 20 along a sloping surface 15. Parallel sloping lines 19 drawn on the support 14 serve as guides to maintain the angle of the electrode to the workpiece constant. The current is supplied to the electrode cluster 18 through terminal 21 and returns through terminal 22. A voltmeter 30 as in Fig. 5 may be inserted in the line between these terminals to enable the speed of the electrode 18 along surface 15 to be adjusted according to the voltage shown. The electrode holder 16 of Fig. 5 is attached by a rod 46 to a slide block 23 and screwed rod feeding mechanism 27, 29 held in a casing 24 pivotally mounted in arms 26. The electrode cluster 18, comprising three electrodes arranged side by side to deposit metal in two runs as shown at 8, 9 in Fig. 2, are moved between spaces formed between copper plates 1, 2 and 3 of a guiding device which is placed over the head of the rail. The device is reversed on the rail to enable metal to be deposited on the areas left beneath plate 2 and step 7 of plate 3 on subsequent runs. In a further arrangement, shown in Fig. 6, the movement of the electrode cluster 18 is controlled by an electric motor if handcontrolled switch 35 is shut, to supply current to the electrodes from terminals 32, 33 of a generator, this causes a relay 34 to close a switch 43 to complete a circuit, when a switch 39 is in the left-hand closed position, from the arc voltage to the motor armature 38. The rate of feed of the electrodes towards the rail 37 is determined by the excitation of the field 41 fed from terminals 40 of an auxiliary supply through a rheostat 42 and by the arc voltage. The electrode holder 16 at the end of its downward movement opens a switch 44 to break the supply to the armature 38; the switch 39 is now moved to the right-hand position to connect armature 38 to the terminals 40 to reverse the direction of rotation and raise the electrode holder 16 which upon reaching the end of its upward movement opens a switch 45 to disconnect armature 38 from terminals 40.
Patent GB-163645-A (GB)
Title: A new or improved holder for use in frying bacon and other food materials
IPC: A47J37/06
Filed: 1920-11-20
Abstract: 163,645. Webb, J. Nov. 20, 1920. Grilling-apparatus. - The frames of the hinged meshed members A, C, between which the food is held, are each made of one piece of wire, the ends of which are held by one of the hinged D. The members A, C are held together by a loop F which is carried on the portion B<1> of the member A and slides over the projection E of the member C. In a modification, a hook or catch G, attached to the member A, engages with the projection E of the member C which is sprung laterally to engage or disengage.
Patent GB-1114125-A (GB)
Title: Thermoplastic polymers
Inventor: LANE ROBERT EARL
IPC: C08L75/00
Filed: 1965-07-30
Abstract: The invention comprises thermoplastic polyethylene imine derivatives containing repeating units of formula <FORM:1114125/C3/1> wherein R is independently hydrogen or a monovalent organic radical and R1 is a monovalent organic radical, each R and R1 being free from substituents reactive with Lewis acids and of substituents reactive with the diradical above.  R and R1 are suitably alkyl, aralkyl or cycloalkyl radicals which may contain halogen or other substituents. The polymers are prepared by (1) polymerization of the aziridinylformate of formula <FORM:1114125/C3/2> in the presence of acidic or basic catalysts, suitably Lewis acids; or (2) by reacting the corresponding polyethylene imine with a haloformate ester:-R1OCOX, where X is a halogen. The examples describe preparations of polymers from ethyl 1-aziridinylformate and ethoxyethoxyethyl aziridinylformate. Hydrolysis of the polymers yields polyethylene imines.  The polymers of the invention may be reacted with polyisocyanates.ALSO:Aziridinyl formates may be prepared by reacting aziridine with a chloroformate ester. Example 7 describes the preparation of ethoxy ethoxy ethyl aziridinyl formate by reacting aziridine with ethoxy ethoxy ethyl chloroformate.  Ethoxy ethoxy ethyl chloroformate is prepared in Example 7 by reaction of phosgene with the monoethyl ether of diethylene glycol.
Patent GB-640476-A (GB)
Title: Peelable wax-containing coating compositions
IPC: C09D191/08
Filed: 1947-12-12
Abstract: A peelable coating composition comprises an oil-free amorphous (microcrystalline) petroleum wax and 1.5 per cent to 30 per cent of the composition of a polymer of a straight chain alkylene, e.g. polythene, having an average molecular weight of at least 10,000. Preferably equal amounts of wax and polythene are subdivided into small particles, mixed and heated to 110 DEG  C.  The swollen mass is hot-worked to form a homogeneous syrup and the remainder of the wax is gradually added with stirring.  The composition may be used for melt-coating metal, paper and cheese, and for sealing capped bottles. Powdered graphite, corrosion-inhibitors, e.g. dicyclohexylamine nitrite, dyes, pigments and hydrocarbon or chlorohydrocarbon solvents may be added.
Patent GB-757104-A (GB)
Title: Process and apparatus for the production of aluminum oxide
IPC: C01F7/32
Filed: 1953-11-27
Abstract: <PICT:0757104/III/1> <PICT:0757104/III/2> Aluminium oxide is produced from hydrated aluminium sulphate i.e. containing 6 or more molecules of water of crystallization, by introducing the sulphate at a controlled rate into the upper end of an elongated vertical reactor externally heated to an internal temperature above 770 DEG C., thereby decomposing the aluminium sulphate to aluminium oxide and gaseous sulphur oxides and liberating water therefrom as it flows by gravity through the reactor, removing the gaseous oxides and water vapour from the upper end of the reactor, separating entrained solids from the gas stream and recycling the solids to the reaction zone, collecting the solid aluminium oxide formed in the lower end of the reaction zone out of contact with the gaseous oxides and water vapour and heating it therein in a substantially moisture free atmosphere to decompose the remaining sulphate and obtain pure aluminium oxide. The sulphate may be supplied in solid particulate or molten form and is preferably supplied at a point substantially distant from the point of gaseous oxides withdrawal.  As shown in Fig. 1, sulphate is fed through line 12 to an externally heated reactor 10 from which solid aluminium oxide is withdrawn at 14 and gaseous oxides with water vapour at 16 to pass to a cyclone separator 18 from which separated solids are recycled to line 12 via line 20.  The gases containing sulphur oxides leave cyclone 18 by line 22 and pass to a scrubber 24 where the sulphur values may be recovered as sulphuric acid.  The reactor is shown in Fig. 2 wherein a central refractory reaction tube 44 is surrounded by a furnace 40 provided with burners 46 and combustion gas effluent 48.  The reactor tube is provided with a feed line 12 which may be heated if molten sulphate is fed or cooled if solid sulphate is used, preferably jacketed at 60, the line 12 being provided with an extension tube 58 into the body of the reaction tube.  Gases are withdrawn at 16 and the solid aluminium oxide falls to the bottom of the reaction tube which is provided with a plug 52 preferably having vanes 56, which plug may be rotated to agitate the solid product collecting, and moved vertically to permit solids withdrawal through valved line 62.  The retention time of the oxide in the reactor is suitably 30 to 120 minutes.
Patent GB-503977-A (GB)
Title: Improvements in, or relating to, overload release units for automatic circuit breakers and similar electrical switchgear
IPC: H01H71/16
Filed: 1937-11-30
Abstract: 503,977. Electrically-tripped switches. CRABTREE & CO., Ltd., J. A. (Schiele Industriewerke) Nov. 30, 1937, No. 33013. [Class 38 (v)] In an overload release unit for automatic circuit-breakers wherein the trip mechanism is operated by thermally sensitive elements associated with heating coils housed in compartments in a heat insulating box, the heat insulating core of a heating coil is slidably mounted in the box walls and secured therein by formations on the core and walls without further fixing means. A star-sectioned core 1a, Fig. 1, has at one end a key 1b which slides in and completely fills a slot 4a in the interior box wall 4<1>, ears 1d<1>, 1d<11> on the key holding the core in position. The heating coil 2 is wound on the core and the leads 3 thereto pass from the space between the double wall 4<1> through bores 1e, 1h and grooves 1f, 1g in the core. The thermal element is an arcuate bimetal strip 6 shrouding the core. Alternatively, the core may have keys at each end slidable in slots in opposite walls of the box when the ears 1d<1>, 1d<11> may be dispensed with, or ribs on the box interior may engage slots in the core.
Patent GB-398147-A (GB)
Title: Improvements in methods for the artificial elongation of eyelashes and the results produced thereby
IPC: A41G5/02
Filed: 1931-11-30
Abstract: 398,147. Improving appearance of the features. BIRK, M. A., 275, West 23rd Street, New York, U.S.A. Nov. 30, 1931, No. 33134. Convention date, Feb. 28. Void [Published under Sect. 91 of the Acts]. [Class 131.] Eyelashes are elongated by attaching a hair 10 of the desired colour and curvature to each eyelash 11 by means of an adhesive, e.g. collodion or a solution of gum arabic.
Patent GB-832475-A (GB)
Title: Preparation of isoprene
IPC: C07C2/30
Filed: 1958-10-17
Abstract: Isoprene is prepared by isomerizing a branched chain hexene which is not an isoprene precursor to an isoprene precursor and pyrolysing. The isoprene precursors are those hexenes which on pyrolysis yield isoprene as the major component of the product particularly 2-methyl pentene-2, 3-methyl pentene-2, 2,3-dimethyl butene-1, and 2-ethyl butene-1.  The starting hexene may be, for example, 2,3-dimethyl-butene - 2, 2 - methylpentene - 1, 3 - methylpentene-1, 4 - methylpentene - 1 or 4 - methylpentene-2 and may be prepared by polymerization of propylene or copolymerization of ethylene and butene.  Suitable polymerization catalysts are the organo-compounds of aluminium, beryllium, gallium or indium, or lithiumaluminium hydride or alkyls, sulphuric acid, phosphoric acid (which may be supported on kieselguhr), silica-alumina, nickel oxide-silica alumina, molybdena-alumina, chromia-alumina, and tungsten oxide on alumina or silica-alumina.  Temperatures of 25-450 DEG  C. and an LHSV. of 0.5-10 can be used.  The product hexenes are isomerized over alumina, silica-alumina, nickel, acidified alumina, acidified clay, alumina-hydrofluoric acid, perchloric acid, phosphoric acid, sulphuric acid, or alkyl-, aryl- or aralkyl-sulphonic acids. Temperatures may be - 50 DEG  to 700 DEG  C. with an LHSV. of 0.5-20 and a pressure of 1 mm.-3 atmospheres.  Pyrolysis of the isoprene precursors may be effected in the presence of steam at 550-1000 DEG C. for 0.001-2 seconds.
Patent GB-338340-A (GB)
Title: Coating especially adapted for filming tin and like foil
IPC: C09D101/18
Filed: 1929-11-01
Abstract: 338,340. Stainolfabrik Burgdorf Akt.- Ges. Oct. 9, 1929, [Convention date]. Metal foil.-Tin or other metal foil is coated with a composition comprising a solution of nitrocellulose in ethyl lactate and alcohol, an alcoholic solution of shellac, and castor oil. Amyl acetate may be added.
Patent GB-831669-A (GB)
Title: Improvements relating to water tube boilers
IPC: F22B21/36
Filed: 1957-10-24
Abstract: 831,669. Water-tube steam boilers. LENTJES STIFTUNG, F., [trading as LINTJES KESSELCHMIEDE UND MASCHINENBAU, F.]. Oct. 24, 1957 [Jan. 8, 1957], No. 33255/57. Class 123(2) A water-tube boiler comprises a prefabricated, self-supporting structure of headers and generating tubes of such rigidity and dimensions that it can be transported by road or rail, a steam and water drum being mounted above the structure on site and connected to the headers by riser tubes and downcomers. The prefabricated water tube system consists of a frame structure the lower longitudinal members 6 and transverse members 7...10 of which constitute distributer headers, the corresponding upper members forming collector headers 13 and 15, 14. The lower distributer headers 6 which support the frame and the upper collector headers 13 are connected by steam generating tubes 23, 24 which alternate along the side walls of the boiler, the tubes 24 extending vertically between the headers 6, 13 on each side whilst the intermediate tubes 23 cross each other near the top of the structure to connect to opposite upper collector headers. The upper and lower headers 13, 6 are also connected by unheated downflow circulators 28. The tubes 23, 24 form the side walls of a furnace chamber 1 and support the furnace lining and boiler casing whilst the crossed tubes support the furnace roof. The front and rear walls of the furnace are respectively formed of tubes 16 and 17, 18 extending from the lower transverse distributer headers 10 and 8, 9 connecting the headers 6 to the upper transverse collector headers 15 connecting the headers 13, the rear tube wall 17, 18 dividing the furnace chamber 1 from a rear furnace chamber 1a. Behind the chamber 1a is an upflow gas pass bounded by walls of water tubes extending between the headers 7 and 14, 15 and locating a superheater 2, this pass being followed by a downflow pass locating a convection steam generating section 22. A steam and water drum 5 extending the length of the boiler is mounted above the water tube system on site, riser pipes 25, 26 being connected between the upper headers 13, 14, 15 and the drum, whilst two large diameter downcomers 11, 12 which also serve to support the drum extend from each end thereof to respective ends of the lower headers 6. Auxiliary downcomer tubes 27 spaced along the length of the boiler also connect the drum and the headers 6.
Patent GB-961415-A (GB)
Title: Underground gas storage process
IPC: B65G5/00
Filed: 1961-09-18
Abstract: 961,415. Storing gases under pressure. GULF RESEARCH & DEVELOPMENT CO. Sept. 18, 1961 [Sept. 30, 1960], No. 33300/61. Heading F4P Fuel gas is stored underground in waterbearing porous rock by injection through wells 12 after primary injection of cheap inert gas, e.g. nitrogen, scrubbed flue gas, or air which may contain oxygen consuming oil and may be followed by nitrogen, which inert gas is of a volume at least as large as that volume of fuel gas which would otherwise have been trapped upon withdrawal of the fuel gas. To detect contamination of the fuel gas by the inert gas, at least 20% of the inert gas is mixed prior to injection with a radioactive tracer gas, e.g. krypton 85, and a radioactivity detector in a chamber 23 is incorporated in a gas delivery pipe 22, the detector being electrically connected to an amplifier and counting rate meter 26 which, via a relay 27, controls electrical power from terminals 28 to a motor-controlled throttling valve 24 to shut-off or restrict gas delivery.
Patent GB-394699-A (GB)
Title: A process of manufacture of hollow objects from large ingots
IPC: B22D7/04
Filed: 1931-12-01
Abstract: 394,699. Forging hollow articles. AKTIEBOLAGET BOFORS, Bofors, Sweden. Dec. 1, 1931, No. 33334. Convention date, June 16. [Classes 83 (ii) and 83 (iv).] Hollow articles of large dimensions such as cylinders, shafts, gun tubes, breech pieces, jackets, brake cylinders are manufactured from ingots by providing the ingot with a longitudinal hole by boring, pressing, &c. before the forging operation or after preliminary forging, or by casting a hollow ingot, inserting therein a core of iron or other easily machineable metal, forging or pressing the ingot to the desired shape on the core which thereby becomes stretched to the same degree as the ingot and finally removing the core by boring.
Patent GB-1409144-A (GB)
Title: Production of vinyl chloride polymer compositions
IPC: C08L33/00
Filed: 1973-07-12
Abstract: 1409144 Vinyl chloride polymerization additive DYNAMIT NOBEL AG 12 July 1973 [13 July 1972] 33401/73 Heading C3P A vinyl chloride homo- or copolymer is prepared by polymerizing vinyl chloride with or without one or more comonomers in the presence of precipitated calcium carbonate, the latter serving as a filler and also as a material which will absorb hydrogen chloride gas which is produced when the polymer is burnt. Suspension polymerization is preferably used, in a vessel having a helical stirrer which contacts the walls, to ensure adequate mixing. The amount of precipitated CaCO 3  used may be 90-105% of the stoichiometric amount required to absorb all of the HCl that the polymer can theoretically produce on combustion. The specific surface of the CaCO 3  is preferably 6-50 m.<SP>2</SP>/g. The vinyl chloride polymer may be a graft polymer in which comonomer is grafted on to a backbone of a vinyl chloride homo- or copolymer. The produced polymer may be blended with a further polymer such as an ethylene/vinyl acetate copolymer, a chlorinated polyethylene containing 15-45 wt. per cent chlorine or a chlorinated PVC containing 58-72 wt. per cent chlorine. In such blends, the amount of precipitated CaCO 3  originally used in the polymerization may be sufficient to account for the HCl gas which would additionally be produced by the added polymer. In the examples a commercially available precipitated CaCO 3  is used. The polymers are used for making products such as floor coverings, building panels, handrails, skirting boards, decorative sheets, wall coverings and cable sheathings.
Patent GB-835679-A (GB)
Title: Method of and means for the continuous production of strips or slabs of porous material
Inventor: HACKERT BENJAMIN MARIUS
IPC: B29C33/00
Filed: 1958-10-20
Abstract: 835,679. Moulding polyurethane &c. HOLLANDSCHE DRAAD-EN KABELFABRIEK N.V. Oct. 20, 1958, No. 33472/58. Class 87(2). In the continuous moulding of a foamed material e.g. polyurethane, in a mould having a bottom 1, a fixed side wall 2 and an adjustable wall 3, the material is carried by a moving paper trough 5, and at the sides additional smooth or crepe paper strips 9 are moved on guides 7 shaped to move the strips upwardly at the point where the material begins to foam. In a modification, Fig. 2, (not shown) the strips 9 are replaced by rotating discs. In further modifications the strips of paper may pass through slots in the side walls 2, 3.
Patent GB-356030-A (GB)
Title: Improvements in or relating to syphonic flushing cisterns
IPC: E03D1/04
Filed: 1930-11-07
Abstract: 356,030. Siphon discharge waterwaste preventers. LEVICK, Ltd., J. and LEVICK, J., 149, Alma Street, Aston, Birmingham. Nov. 7, 1930, No. 33485. [Class 26.] The standpipe 6, Fig. 2, of a flushing cistern is of greater diameter than the flushpipe 7, and contains a valve 8 and cage 9. The valve is operated through a lever 12 by a push-in member 13, or by a universally mounted member 20, Fig. 4, having a curved surface engaging a similar surface on the head of the member 13. Specifications 140,981 and 304,577, [both in Class 26, Closets &c.], are referred to.