baber/WOPTO huggingface dataset:
Patent GB-316169-A (GB)
Title: Improved processes for de-lustreing cellulose acetate silk, films, and the like
IPC: D06M13/123
Filed: 1928-04-24
Abstract: 316,169. Silver Springs Bleaching & Dyeing Co., Ltd., and Hall, A. J. April 24,1928. Yarns, treating with liquids.-The lustre and transparency of cellulose acetate silk is reduced by depositing, within the cellulose acetate, anthraquinone or a derivative thereof (which is colourless or nearly so in the oxidized state) in the reduced or leuco form. In examples, cellulose acetate silk is immersed in an aqueous bath containing anthraquinone or 2-chloranthraquinone, turkey red oil, ammonia, and sodium hydrosulphite, rinsed, exposed to air or treated with hydrogen peroxide solution, and soaped; the product is practically white and has considerably reduced lustre and transparency. The leuco compounds of anthraquinone and its derivatives can also be applied by a printing process. If it is desired simultaneously to dye and delustre the silk, suitable dyestuffs may be added to the impregnating baths or printing pastes. In a further example, acetate silk is dyed red and simultaneously delustred by immersing it in a dyebath containing anthraquinone, Hydron pink FF, turkey red oil, ammonia and sodium hydrosulphite, followed by exposure to air or treatment with hydrogen peroxide solution.
Patent GB-764338-A (GB)
Title: Improvements in or relating to preparation of m- and p-diisopropylbenzenes
IPC: C07C6/12
Filed: 1954-04-26
Abstract: A diisopropylbenzene substantially free from o-diisopropylbenzene and trimethylindane is obtained by propylating benzene with a propylene containing gas containing no higher molecular weight unsaturates in the presence of an acid-acting condensation catalyst to produce substantially pure cumene, which is contacted with 0.1 to 2.0 mols. per cent of aluminium chloride at a temperature of 65-115 DEG  C. until the reaction mixture contains a substantial amount of m-diisopropylbenzene, and separating the diisopropylbenzene from the reaction mixture by distillation.  The propylene containing gas may be a refinery gas which contains also ethylene, but must be free from butene or butadiene.  The acid acting catalyst may be 80 per cent sulphuric acid, phosphoric acid on kiesleguhr, ferric or cupric pyrrophosphate, aluminium chloride, zinc chloride, acid clays, hydrogen fluoride or boron trifluoride.  In the second stage, anhydrous aluminium chloride powder is added to the cumene at a temperature which is preferably below 50 DEG  C. and the temperature slowly allowed to rise to 65-115 DEG  C.  The percentage composition of the resulting mixture is approximately benzene 17, cumene 51, m-diisopropylbenzene 20, p-diisopropylbenzene 10, and triisopropylbenzene 2.  Specification 763,179 is referred to.
Patent GB-315690-A (GB)
Title: Improvements in or relating to continuous machines for making paper and other sheet material from pulp
IPC: D21F3/02
Filed: 1929-04-18
Abstract: 315,690. Soc. Invenzioni Brevetti Anon. July 16, 1928, [Convention date]. Suction apparatus; wet presses.-In wet presses of paper machines, where the pulp web c is conducted therethrough between the wire cloth a, on which it is formed, and a felt b, the water which tends to collect in front of the nip of the press rolls 1, 1<1>, is removed by a suction device 5 having gudgeons 5<11> mounted in semi-cylindrical bearings 6<1> carried by arms 6 which are pivoted at 7, adjusting screws 8 and locking screws 9 being provided.
Patent GB-1020028-A (GB)
Title: Improvements relating to devices for limiting wheel skid on vehicles during brake applications
IPC: B60T8/40
Filed: 1963-03-27
Abstract: 1,020,028. Brakes. SOC. ANON.; ANDRE CITROEN. March 27, 1963 [May 11. 1962], No. 12070/63. Heading F2F. An anti-skid arrangement for hydraulic vehicle brakes comprises an auxiliary hydraulic circuit with a distributer and pumps geared to the road wheels, whereby in the event of one of the wheels skidding the pressure differential in the circuit resulting from slowing of the associated pump causes the distributer to cut off pressure to the brake circuit of the affected wheel. As shown for a vehicle with frontwheel drive the supply of pressure liquid to the front and rear brakes 11, 12 through separate pipe-lines 2a, 5a, 9a and 2b, 5b, 9b is controlled by a regulator 4. The lines are connected to the distributer 7 which comprises a central piston 18 with associated piston valves 8a, 8b, the piston being subjected to the pressure in the auxiliary lines 14a, 14b resulting from the operation of a front wheel pump 15 and rear wheel pumps 16, 17. In the event of any wheel skidding the resulting pressure differential in lines 14a, 14b causes movement of piston 18 and valves 8a, 8b in the direction to interrupt communication between the pipes 5, 9 of the affected circuit, pipe 9 being connected to a sump 6 through a line 13a or 13b to release the associated brake. When skidding ceases the pump drive is restored to cancel the pressure differential and allow piston 18 to restore the interrupted brake circuit.
Patent GB-129822-A (GB)
Title: Improvements in and connected with the Feeding or Controlling of the Feed of Molten Glass from Glass Furnaces or Tanks.
Inventor: FORSTER JOHN
IPC: C03B7/086
Filed: 1918-07-25
Abstract: 129,822. Forster, J. July 25, 1918. Delivering molten metal.-Relates to apparatus in which the flow of molten metal from the discharge orifice of a melting-tank is alternately checked and accelerated by the vertical movement of a plunger immersed in the metal near the orifice. The plunger a is made of the form shown and is disposed above the orifice e. The plunger is actuated through a lever d by a cam &c.
Patent GB-355257-A (GB)
Title: Improvements in or relating to the separation of gaseous mixtures of low boiling point by partial liquefaction
IPC: F25J5/00
Filed: 1930-04-16
Abstract: 355,257. Separating gases by liquefaction. FRNKL, M., 234, Ulmerstrasse, Augsburg, Germany. April 16, 1930, No. 12122. Convention date, April 19, 1929. [Class 8 (ii).] Air to be lique fied passes througl periodically reversed cold ac cumulators A<1>, Bl or A<11>, B<11>, the nitrogen and oxy gen simultaneously passing out through the accumulators A<11>, B<11> or A<1>, B<1> the air passes through pipe 6 into the lower rectifie: c<1> and is separated into gaseous nitrogen and a liquid rich in oxygen; the nitrogen is partly liquefied in the condenser b and the liquid conducted by a coil e and conduit 1 to the top of the upper rectifier and the impure oxygen liquid is delivered through coil f and pipe 2 to the middle of the upper rectifier. The gaseous nitrogen passes to a motor h, the exhaust of which, together with the nitrogen gas from the upper rectifier, are led through the cooler d in which it cools the liquid nitrogen and oxygen in coils e, f before passing away through the accumulator A<11> or A<1>. The carbon dioxide and ice deposited in the accumulators by the entering air are completely removed by the escaping gases. In a modification, a part of the air passes direct from the accumulators to the motor h, the exhaust from which is delivered to the upper rectifier, and only the nitrogen from this rectifier passes around and cools the liquid gases in the coils e, f.
Patent GB-1316442-A (GB)
Title: Semiconductor devices
IPC: H01L21/00
Filed: 1970-05-15
Abstract: 1316442 Semi-conductor devices NATIONAL SEMI-CONDUCTOR CORP 13 May 1970 [15 May 1969] 12161/70 Heading H1K In an IGFET the drain region impurity profile is linearly graded near the drain substrate junction and the gate electrode is positioned over a thin insulating layer which extends over the drain region, the construction being such that the drain region depletion layer extends into the drain region and the edge of the gate electrode lies above this layer to reduce the effects of various breakdowns mechanisms. The surface of a Si wafer is masked with an oxide layer, windows are opened by photoetching, boron is predeposited and diffused-in for a longer period than is usual in such devices to form source and drain regions 66, 68 which have a graded impurity concentration rather than being uniformly heavily doped. A thick oxide layer is grown on the surface by wet oxidation and a window is etched to expose the channel region between the source and drain regions and a thin oxide layer 88 is formed in the thick oxide layer. An Al layer is deposited and photoetched to form source and drain electrodes 78, 80 and gate electrode 82. The source and drain electrodes may be alloyed to the surface. In integrated circuits the invention may be applied only to high voltage transistors, a second deposition and diffusion may be utilized to increase the impurity concentration of the source regions. Highly doped source and drain contact regions may be provided.
Patent GB-576807-A (GB)
Title: A new or improved device for use in conjunction with gas, electric and oil cookers
IPC: F24C15/20
Filed: 1944-06-27
Abstract: 576,807. Cooking stoves. MacASKILL, M. June 27, 1944, No. 12202. [Class 126] A device for use on the hot-plate of a cooking stove to collect vapours &c. and so prevent the ceiling and walls of the room from becoming soiled with grease comprises a sheet metal box a open at the front and bottom and having a roof b which slopes upwardly from back to front and is bent over at the front to form an inclined deflector c. The lower ends of the walls are provided with flanges f and lugs g by which the device is positioned on the hot-plate and ledges d on the side walls support a dish-warming rack e.
Patent GB-803533-A (GB)
Title: Improvements relating to handles for mirrors, brushes, handled combs, manicure toolsand like toilet articles
IPC: B25G3/00
Filed: 1956-04-21
Abstract: 803,533. Handles for toilet articles. CLISSOLD, Ltd., F., CLISSOLD, J. S., and CLISSOLD, R. B. April 23, 1957 [April 21, 1956], No. 12272/56. Class 61. In an end handle for toilet articles the channel shaped strip 1 which forms opposite sides of the handle and which positions ornamental panels 2, 3 and 4 on one or both faces of the handle, has a longitudinal abutment rib 7 on one face near one or both longitudinal edges, against which rib or ribs the edges 5 of the panels are positioned prior to the edges 8 of the strip being turned over the edges of the panels. A raised rib 10 or series of projections are provided at the edge of each panel to provide a positive key between the panels and the strip. A channel shaped bridge piece 11 is secured between the parts of the strip adjacent the toilet article. The middle of the bridge piece is apertured to receive the tang of the article the screwed end of which passes through a bore in the extremity of the handle and is secured by a sleeve nut 9. A decorative tube is positioned on the tang. Instead of a single strip two shorter strips may be joined by a base part forming the end of the handle.
Patent GB-127450-A (GB)
Title: Apparatus for the Manufacture of Hollow Glass Articles.
IPC: C03B9/195
Filed: 1918-07-29
Abstract: 127,450. Naamlooze Vennootschap Glasfabrielt "Leerdam" voorheen Jeekel, Mijnssen, & Co. June 6, 1918, [Convention date]. Blowing.-Apparatus for making hollow glass articles comprises two horizontal tables 1, 32, Figs. 1 and 3, rotatably mounted on pillars 3, 33 and carrying a number of two-part parison moulds 16 and finishing-moulds 44 respectively, each mould having two or more moulding spaces, with a vertically-movable frame carrying two or more yieldingly and independently mounted piercing- plungers 12, 13 arranged above the table 1 and a blowing-nipple 41 having two or more nozzles adapted to be moved up and down above the table 32. The halves 16a, 16<b>, Figs 5 and 6, of the parison mould are pivoted together by a bolt 17 and secured by a handle-bolt 22 which passes through eyes in the halves 16<a>, 16<b> and has a cut-away central portion to enter a closedsided radial slot 23, Fig. 8, in the eye of the half 16b to allow the mould to be opened to a limited extent. The loose ring-mould 24 consists of two parts 24a, 24<b>, and rods 25, 26 secured to the part 24<a> and passing through holes in the part 24b are connected by a cross-piece 27. A rod 28, secured to the part 24<b> and terminating in a handle 29, passes through the piece 27, and a spring 30 tends to keep the ring-mould closed. The spring-pressed plungers 12, 13 are carried by a frame 11 secured to the piston-rod 6 of a pneumatic cylinder 5 mounted on the pillar 3, and are guided vertically by holes in the frame 11 and holes in the spring-pressed cross-piece 9 of an outer frame 7, 8, 9, also secured to the rod 6. The blowing-pipe 39, guided in a bracket 38 carried by a sleeve 37 mounted between collars 35, 36 on the. pillar 33, is operated by a lever 42 coupled with a tap 43 in the pipe, so that compressed air is only supplied when the nipple 41 is in the lower position. The finishing-moulds 44 are similar to the parison moulds, with the exception that the slot 23 is open-sided to allow the finishing-moulds to be completely opened. In operation, a charged parison mould, with its ring- mould in position, is brought beneath the plungers 12, 13, and compressed air is admitted to the cylinders 5, whereupon the plungers descend and force the metal into the annular spaces 31a of the ring-mould. The ring-mould, with the parisons, is then transferred to one of the finishing-moulds on the table 32 and the parisons blown in the usual manner.
Patent GB-1034642-A (GB)
Title: Plastics extrusion
Inventor: ANSELM ANTHONY CESAR
IPC: B21D49/00
Filed: 1962-03-30
Abstract: 1,034,642. Decorative strip. CREATORS Ltd. March 14, 1963 [March 30, 1962], No. 12356/62. Heading B6G. [Also in Division B5] A decorative extruded plastic strip 1 for securing to a base by radio frequency welding has narrow flanges 3 serving for radio frequency welding the strip to the base without damaging the decoration. The strip 1 may be of polyvinyl chloride and have a metallized polyester film 2, to form the decorative face of the strip, and extending down the sides thereof but not on to the flanges 3.
Patent GB-452164-A (GB)
Title: Improvements in or relating to bottles or like liquid containers
IPC: B65D23/06
Filed: 1935-04-24
Abstract: 452,164. Bottles &c. SCHEYER, S., and ARCARI, S., 15, Karlsplatz, Munich, Germany. April 24, 1935, No. 12361. Convention date, Oct. 8, 1934. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 25, 1935.] [Classes 66 and 125 (i)] The pouring lip of a bottle or other liquid container is provided with a groove 2, which widens in the direction of pouring and serves to prevent dripping by causing any drops to be withdrawn into the vessel on the cessation of pouring, the groove being surmounted by a second groove 5 widening in the opposite direction and intended to facilitate delivery of the liquid in the form of drops.
Patent GB-658707-A (GB)
Title: Method of improving magnesium and its alloys
IPC: C22C23/00
Filed: 1949-05-09
Abstract: Magnesium and manganese-containing binary alloys thereof are treated to ensure the formation of finely crystalline castings by a method which comprises alloying with the molten metal 0.001-0.015 per cent aluminium and 0.01-0.7 per cent of calcium and treating the melt with nitrogen.
Patent GB-1000736-A (GB)
Title: Electric switches
IPC: H02G3/18
Filed: 1962-03-30
Abstract: 1,000,736. Snap-action switches. BUSH JAEGER DURENER METALLWERKE A.G. March 30, 1962 [April 11, 1961], No. 12372/62. Heading H2B. A rocker-operated switch is rendered compact by moulding the base from one piece of insulating material having recesses formed by plungers 1a 1b and 1c such that flanges 2e extend from the side walls to act as stops for the operating member 5, while overlap of the plungers forms space for tilting movement of a rocker contact 3 by making the cavity 2a contiguous with recesses 2b; slots 2d are also formed for insertion of terminal plates 4 integral with the fixed contacts. A groove 2k is formed for a conductive insert to provide pivotal connection to the rocker contact 3. A compression spring 11 provides snap action, and rubber strips 2g on flanges 2e cushion the rocker 5. A lug 3a integral with contact rocker 3 projects into a V-shaped aperture 5b on rocker 5 to provide positive actuation should the contacts tend to weld for example. The switch body may be moulded to carry a plurality of rockers 5 with ribs extending into the central cavity between the associated sets of contacts. Brackets and claws (Figs. 3-5, not shown) are provided for mounting the switch, and a cover is clipped on to the brackets (Fig. 4, not shown).
Patent GB-318270-A (GB)
Title: Improvements in the manufacture and production of valuable low boiling and gaseous hydrocarbons from those of higher boiling point
IPC: C07C11/02
Filed: 1928-04-27
Abstract: 318,270. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). April 27, 1928. Olefines and diolefines, especially butadienes, are obtained from carbonaceous materials consisting of, or furnishing, constituents boiling mainly above 200‹ C., or from their distillation products or residues furnishing products boiling above the aforesaid limit, by exposing the said materials in a vaporous or finely divided state to the action of high temperature electric discharges, especially fiaming or spark or high frequency discharges or arcs, for a short, period. The reaction products are rapidly removed' from the discharge zone and a large excess of substantially unchanged initial materials is maintained, whereby the products are prevented from attaining a temperature greater than 700-800‹ C.; by this means further dissociation into hydrogen and acetylene is to a considerable extent avoided. The electric discharge may be in the vapour space above the boiling tar, oil, &c., or the latter may be passed in finely divided solid or liquid state, or as vapours through the discharge. The pressure is preferably reduced. Electrodes of copper or its alloys, chromium nickel alloys, iron, or carbon are suitable: the electrodes mav be cooled. In an example, one part by volume of petroleum containing substantially no constituents boiling below 200‹ C. is distilled through a flaming carbon arc, producing 400 parts of a gas containing carbon monoxide, hydrogen, nitrogen, ethylene, propylene, butylene, acetylene, butadienes, and a mixture of saturated paraffin hydrocarbons. In a second example, brown coal tar is dropped through an are at such a rate that only 20 per cent of the tar is gasified. The gas produced contains carbon monoxide, hydrogen, methane, nitrogen, ethylene, propylene, butylene, butadiene and acetylene. Specifications 271,473, [Class 32, Distilling &c.], and 286,825 are referred to.
Patent GB-185453-A (GB)
Title: Improvements relating to boiler feed-water regulators
IPC: F22D5/10
Filed: 1921-04-29
Abstract: 185,453. Cowlishaw. Walker. & Co. (1920), Ltd., Lovett, W. H., and Dobbs, A. E. April 29, 1921. Feed-water, controlling. -In a feed-supply regulator of the kind in which a float-valve device controls the passage of steam or other fluid to a cylinder containing a piston connected to the feedvalve, the valve member of the device is a hollow cylinder with closed ends and circumferential ports. The rotary valve member a has ports b, c, which register with passages j, k in a plug h, the passages opening into the inlet and outlet connections i<2>, i<3>. The plug may be partly rotated so as to vary the operative level of the water in the float-chamber. The longitudinal thrusts on the valve member and the valve spindle l are balanced by placing their ends in communication with the interior of the float-chamber through passages h', g, g<2> and m<2>.
Patent GB-298059-A (GB)
Title: Improvements in and relating to discharge mechanism for petrol pumps and the like
IPC: B67D7/16
Filed: 1928-04-27
Abstract: 298,059. Tella, T. di. April 27, 1928. Fixed-chamber apparatus, valve systems for.- In a discharge mechanism for petrol pumps and the like, an outlet valve 6 is locked in the open position by a locking cylinder 11 open to the discharge pipe 5 and cannot be closed until the entire amount to be dispensed is drawn off from the reservoir 2. A piston 16 movable in the cylinder 11 is connected to the handle 7 of the valve 6. The supply and discharge pipes 12, 13 of the cylinder 11 are connected directly with the pipe 5 at points below or above the outlet valve 6, and open into the cylinder by means of terminal ports 14, 15 which are closed by the piston 16 if the handle 7 is turned to close the discharge valve. Further movement of the piston and the handle 7 is then prevented if the cylinder 11 contains liquid. An air inlet and outlet 22 is closed by a float valve 21 when the cylinder is full of liquid. Specification 291,710 is referred to.
Patent GB-1148349-A (GB)
Title: Impeller for a roots-type fluid flow machine
IPC: F01C1/12
Filed: 1967-03-16
Abstract: 1,148,349. Making Roots'-type blowers. FULLER CO. 16 March, 1967 [24 March, 1966], No. 12495/67. Heading B3A. [Also in Division F1] In a method of making the rotors, or impellers, (12, 14), Fig. 1 (not shown), for a rotary pump, or compressor, of the Roots'-blower type, two impeller blanks 30 are each cut to a size somewhat greater than the final one, which is indicated in phantom lines in Fig. 2, each lobe of the finished impellers having a part-circular profile of radius (TR) centred at a point F and the waist of each finished impeller being shaped such that its profile is constituted by non-circular wires generated by the lobes on the other impeller. The two blanks are then placed one on top of the other on a rotary table in a jig borer and the waists are formed by a rotary cutter 32, each cut being made after the blanks have been rotated through a small angle, e.g. ¢ degree, about their centres. The location of the cutter is determined by the use of x and y co-ordinates, as indicated in Fig. 3. The lobes are subsequently formed by grinding. Alternatively, the lobes of each impeller are formed before the waist by grinding, the profile of the waist on each blank being subsequently marked out by tracing the locus of the tip of one lobe on the other blank while the two blanks are rotated synchronously in opposite directions upon parallel shafts. The waist on each blank is thereafter cut in a conventional manner. Each impeller may have more than two lobes.