baber/WOPTO huggingface dataset:
Patent GB-1413946-A (GB)
Title: Method of preparing m- and p-phenylene diamine
IPC: C07C209/62
Filed: 1974-03-19
Abstract: 1413946 Preparation of m and p phenylene diamine AKZO NV 19 March 1974 [19 March 1973] 12069/74 Addition to 1364229 Heading C2C The invention comprises a process for the preparation of m and p phenylene diamine by Hofmann degradation of isophthalic acid diamide or terephthalic acid diamide in which in a first stage isophthalic acid diamide or terephthalic acid diamide is chlorinated in dilute mineral acid aqueous suspension and the resulting N,N<SP>1</SP>-dichloroisophthalic acid diamide or N,N<SP>1</SP>-dichloroterephthalic acid diamide is then converted into m or p phenylene diamine by treatment with an alkali metal or alkaline earth metal hydroxide at elevated temperature. Preferably in the first stage the dilution of the reaction mixture is adjusted so that the hydrogen chloride formed in the process of chlorination remains almost completely dissolved in the reaction mixture up to the end of the reaction. The aqueous mineral acid medium used may be, for example, hydrochloric acid, sulphuric or phosphoric acid. Preferably the final stage is carried out using a neutral suspension of the amides and the hydrogen chloride formed as a by-product of chlorination dissolves in the reaction mixture and the reaction takes place in a dilute aqueous hydrochloric acid medium.
Patent GB-343812-A (GB)
Title: Improvements relating to connectors for aerial lines
IPC: H01R4/38
Filed: 1930-04-16
Abstract: 343,812. Wire couplings. GLÍSER, O., Niklasdorf, Czecho-Slovakia. April 16, 1930, No. 12103. [Class 38 (i).] A branch wire 4 is connected to an overhead line 5 by a U-shaped member 1 in which the leads are clamped by the wedge-shaped head 6 of a screw bolt 7 the shank of which passes through an elongated hole in the base of the member 1. In the form shown in Fig. 4 the leads lie in notches formed in the walls of the member 1. A hole may be used for the branch wire 4 in place of the notch. In a modification there is a metal bar 20 of U-shaped cross-section with a central web 21 in which are gaps to receive the heads 6 of the bolts 7.
Patent GB-150024-A (GB)
Title: Improvements in connection with trawling nets
IPC: A01K73/02
Filed: 1919-05-14
Abstract: 150,024. Shepherd, S. Way 14, 1919. Nets; trawling-gear.-A trawling- net 1, having an enlarged openheaded receiving-end 2 merging into a rear-body net 5, is connected to the main towing-lines 7, 8 by a series of spaced head-lines 9, some of which, as at 10, extend along and are secured to the extended head portion and body portion of the net. These are adapted to open the receiving-end to the fullest effective degree when trawling in such a manner that the head-lines and main towing-lines are lifted clear of the water-bed, so that a greater number of undersized fish are permitted to escape through the enlarged meshes of the net. At either side of the net the outer head-lines may be connected to boards or lugs 13 suitably attached to the net. Reference has been directed by the Comptroller to Specification 17072/96.
Patent GB-418515-A (GB)
Title: Improvements in jointing or coupling devices for flexible driving belts
IPC: F16G7/00
Filed: 1933-04-26
Abstract: 418,515. Driving - belts ; fasteners. CROFT, A., c/o Crofts (Engineers), Ltd., Thornbury, Bradford, Yorkshire. April 26, 1933, No. 12137. [Class 80 (i).] A belt-fastener comprises two cross bars 4, 4<a> having inclined faces f, g to engage the belt ends a, b, the bare being secured together by bolts 3. The bars have enlarged ends w tc hold friction surfaces 3d to engage the sides 5 of a V-pulley. The bolts may be retained by spring-washers 7. The belt may comprise a number of ordinary pairs of thrust bars, on one side of which and of the fastener bars a flat belt may be secured for engaging a cylindrical pulley. The belt may be of leather, fabric, or rubber, and the cross bars of wood or metal.
Patent GB-701769-A (GB)
Title: Improvements in or connected with buildings having double walls and a double roof
IPC: E04B2/60
Filed: 1952-05-13
Abstract: 701,769. Double walls and roofs. NAAMLOOZE VENNOOTSCHAP ONTWIKKELING- MAATSCHAPPIJ POLYNORM. May 13, 1952 [June 4, 1951], No. 12143/52. Class 20 (4) A building construction with double walls and a double roof comprises a number of substantially identical supporting frames 2 arranged in parallel spaced relation and each comprising two parallel upright bars forming wall studs joined together by two inclined bars forming roof joists. the bars being arranged with their longitudinal edges 5 turned outwards and inwards of the building, outer and inner clamping strips 7, 6 detachably fixed to the outer and inner edges of the studs and of the joists, and outer and inner wall panels and roofing panels 9, 8, clamped with their lateral edges between the corresponding clamping strips on the studs and roofing joists of adjacent frames. As shown the frame bars are of sheet steel bent or rolled to form a flat central web with an undulated portion at each edge comprising ridges 3 and 4 and thickened ribs 5 formed by folding the sheet inwardly. The clamping strips 6, 7 have a resilient central groove fitting on the rib 5, and a resilient lateral groove at each side to hold the panel edges. The outer roof panels 9 and clamping strips 7 may form an overhanging roof. To form windows the outer wall panels may be formed of glass &c. as at 10, the corresponding portions of the inner panels being omitted or also formed of glass &c. The bars of adjacent frames may be joined by bracing elements arranged between the inner and outer panels.
Patent GB-1109731-A (GB)
Title: Process for producing lubricating oils
Inventor: GRUNDY DEREK GEORGE RITCHIE
IPC: C10G47/00
Filed: 1965-03-23
Abstract: Lubricating oil is obtained from an asphaltic residuum containing 2-70% vol. of asphalt by hydrocracking in contact with a siliceous base hydrocracking catalyst at a space velocity below 1.0 and a pressure above 1500 p.s.i.g.  Residuum boiling above 650 DEG  F. is hydrocracked at 371-482 DEG  C. with 5000-20,000 SCF of hydrogen per barrel to maintain a conversion to products boiling below 650 DEG  F. of 15-70% vol. and the product boiling above 650 DEG  F. preferably dewaxed and percolated through clay, bauxite, "Porocel" (Registered Trade Mark), fuller's earth or activated charcoal, to obtain a lubricating oil having a viscosity index above 100.  The catalyst comprises a hydrogenating component on a siliceous cracking base. Preferably part of the product boiling in the range 400-700 DEG  F. is recycled to the process.  Lubricating oils, turbine oils or automatic transmission fluids comprise the product of the above process with conventional additives incorporated: viscosity index improvers such as isobutylene or methacrylate polymers; detergents such as metal sulphonates (e.g. barium wax-benzene-sulphonate oleate or wax phenol sulphonate) metal phenates (e.g. barium phenate) and metal naphthenates; antioxidants such as zinc dithiophosphates (e.g. zinc dihexyl dithiophosphate) or alkylated phenols (e.g. 2,6-ditertiary butyl paracresol); and rust inhibitors, e.g. oleic acid-triethylene tetramine-tetrapropenyl succinic anhydride reaction product.
Patent GB-217718-A (GB)
Title: Improvements in or relating to the construction of silos
IPC: B65D90/08
Filed: 1923-05-07
Abstract: 217,718. Munro, D. J. May 7, 1923. Silos.-A silo is formed of standardized sections with wedge-like abutting edges in polygonal or circular cross-section. The abutting edges b<1> of wooden panels rest against furrowed uprights a which may be formed of two uprights secured together with staggered joints. Fig. 3, and bracing bands c are used to brace the structure. The panels are tongued together on their horizontal edges. When the panels are formed of metal, the upper and lower edges are provided with flanges k' slotted at their ends to receive the abutting angle uprights i. The abutting edges of the metal panels are shaped to engage with wedge-like action.
Patent GB-1300223-A (GB)
Title: Makeup preparations
Inventor: ASKVOLD BJARNE
IPC: A61K8/00
Filed: 1969-03-07
Abstract: 1300223 Make-up compositions B ASKVOLD 5 March 1970 [7 March 1969] 12259/ 69 Heading A5B Make-up compositions (e.g. foundations, make-up removers, eye shadows, eye liners, rouge paste and lipsticks) comprise a filmforming base comprising a hydrocarbon polymer having a molecular weight in the range 400 to 6000, 0.1 to 5% by weight of a metal salt of a fatty acid having at least 12 carbon atoms and a substantially odourless solvent (boiling in the range 100-250‹C) for the filmforming base in an amount of 100 to 500% by weight based on the hydrocarbon polymer. The hydrocarbon polymer may be a microcrystalline wax or a linear polyethylene having a molecular weight in the range 1000 to 4000, the solvent may be white spirits and the metal salt may be aluminium, lithium, calcium or magnesium mono-, di- or tristearate. The compositions may also contain a paraffin wax, a UV absorber, a perfume, an inorganic pigment, an antioxidant (such as butylated hydroxytoluene or butylated hydroxyanisole), fatty alcohols, and/or a flaky pigment (such as mica and metals in flake form).
Patent GB-1402503-A (GB)
Title: Vapour-phase alkylation in presence of crystalline aluminosilicate catalyst with separate transalkylation
IPC: C07C2/12
Filed: 1973-03-14
Abstract: 1402503 Alkylation and transalkylation of aromatic hydrocarbons MOBIL OIL CORP 14 March 1973 [12 May 1972] 12261/73 Heading C5E Aromatic hydrocarbons are alkylated in the vapour phase with an alkylating agent, e.g. an olefin, in an alkylation reactor with an inlet temperature of 650-900 F., a reaction pressure of atmospheric to 3000 p.s.i.g., a mole ratio of aromatic hydrocarbon : alkylating agent of 1 : 1 to 20 : 1 and 2-2000 WHSV in the presence of a ZSM-5 type aluminosilicate zeolite (characterized by X-ray diffraction pattern), at least part of the effluent containing polyalkylaromatic compound being passed with an aromatic hydrocarbon charge to a separate transalkylation reactor under vapour phase conditions including an inlet temperature of 650-900 F., a reaction pressure of atmospheric to 3000 p.s.i.g., a mole ratio of aromatic hydrocarbon charge to polyalkylaromatic compounds of 1 : 1 to 16 : 1 and 10-1000 WHSV and containing the same type of catalyst. The catalyst may be combined with a binder, such as Al 2 O 3 . Examples describe the alkylation of benzene with ethylene.
Patent GB-271851-A (GB)
Title: Improvements in radio receivers employing four electrode valves
IPC: H03F1/16
Filed: 1927-05-07
Abstract: 271,851. Soc. dite la Radio-Industrie, and Compagnie pour la Fabrication des Compteurs et MatÚriel d'Usines Ó Gaz. May 31, 1926, [Convention date]. Addition to 266,325. Thermionic amplifiers and detectors. - The four-electrode valve circuit for wireless reception described in the parent Specification is combined with means to produce positive reaction between the plate circuit and the input circuit, such reaction being so arranged that the resultant damping of the input circuit is independent of the wavelength. Fig. 2 shows a two-valve circuit comprising a detector and a low-frequency ampli. fier. The tuned input circuit LC has a tap connection to the aerial through a condenser C<5>. and is connected to the outer grid g<2> through a condenser C<1>, the usual leak resistance R being provided. The plate circuit includes a coil L<2> shunted by a condenser C<2> and fixedly coupled to the coils L so as to give increasing reaction effect as the wavelength increases. The impedance required in the inner grid circuit, in order that capacity reaction may take place as in the prior application between the two grids, is provided by the section P<1> of the low-frequency output transformer. The other section P<2> of this primary coil is in the plate circuit, and is shunted by a condenser C<3> to by-pass high-frequency current. The seconary coil S may be arranged as the input coil of a four-electrode, low-frequency amplifier feeding a telephone T<3> through a transformer T<2> having a split primary coil. For a single-valve circuit, the telephones shunted by a condenser may be connected in the plate circuit, and the inner grid circuit includes a choke coil which, like the transformer coil P<1>, owing to its distributed capacity gives maximum impedance on the longer wavelengths. The sensitiveness of the receiver may be adjusted by a filament rheostat as described in Specification 271,850.
Patent GB-489882-A (GB)
Title: Improvements in the thread controlling mechanism employed in twist-lace curtain and other machines
IPC: D04C5/02
Filed: 1937-04-30
Abstract: 489,882. Lace - machines. JARDINE, Ltd., J., and JARDINE. SIR E. April 30, 1.937, No. 12311. [Class 74 (i)] The jacks or interceptors A of a lace-machine are made straight for the major part of their length and are selected directly by a pattern drum J or band. They are disposed horizontally, below the rear comb bar B, in sley plates C .... E. The thread-engaging offset front ends A<1> rest in, and can be shogged by a trick bar G<1>. Each jack is pressed by an encircling spring H towards the drum J. The pattern surface may comprise a row of flat gapped discs, one for each jack A, keyed on a shaft J<1>. A hollow drum with holes, and with or without pattern members fixed or detachably mounted in the holes, or a paper band, may be used instead. The drum shaft J<1> is pivoted in a frame which swings on an axle L and is advanced by a ratchet N and pawl O. Alternatively, the shaft J<1> may be advanced by known means such as Geneva stop device.
Patent GB-753267-A (GB)
Title: Improvements in tobacco pipes
IPC: A24F5/00
Filed: 1954-04-28
Abstract: A bowl liner is a solid body formed from two-thirds tobacco dust and one-third synthetic resin and held by adhesive, a force fit or a screw in a bowl of birch wood, aluminium alloy or a synthetic plastic re-inforced with glass fibres or vulcanite-like masses.  A vulcanite mouthpiece is provided.
Patent GB-108907-A (GB)
Title: Improvements in Packing for Pneumatic Machines.
Inventor: REIMANN ROBERT
IPC: F16J15/32
Filed: 1916-08-31
Abstract: 108,907. Reimann, R. Aug. 31. 1916. Cup-leather packing.-A packing for the ram &c. of a pneumatic machine consists of a cup-leather E the packing edge of which is received in a recess in a bush D, the packing being held in position by a ring G acted on by a spring H contained in a box B. A second cup-leather J may be clamped between the box B and the cover I. The second cup-leather is held in position by a. second ring K also acted on by the spring H.
Patent GB-917228-A (GB)
Title: Method of treatment of molten metals
Inventor: CHERRY GEORGE JOSEPH NALL
IPC: C21C7/10
Filed: 1960-04-07
Abstract: Molten metal, e.g. steel, is degassed in a closed vessel, such as a ladle furnished with a gas-tight cover connected via a flexible tube to a vacuum pump, by applying a vacuum to the melt surface and imparting to the vessel a motion which sets up waves on the melt surface of such intensity that their crests become unstable and break up.  The vessel is preferably subjected to an eccentric rotary motion, such as described in Specification 801,156, wherein the vessel is moved without rotation about its own axis along a circular path, e.g. 50-100 mm. diameter, with respect to a vertical axis, e.g. at a frequency of 50-100 cycles/minute.
Patent GB-1195052-A (GB)
Title: Improvements in or relating to the Sterilisation of Surgical Instruments.
Inventor: PICKSTONE RICHARD ESDAILE
IPC: A61L2/20
Filed: 1967-03-16
Abstract: 1,195,052. Sterilizing apparatus. R. E. PICKSTONE. 13 March, 1968 [16 March, 1967], No. 12419/67. Heading A5G. Apparatus for sterilizing articles, especially surgical instruments, comprises a vessel 12 with a heater 14 and a thermally insulating jacket 13 at the lower end, a section 10 above having cooling fins 16, and an uppermost flared section 11 in which is an entry door 21 and means whereby the articles to be sterilized are lowered into the lower vessel, so that they are sterilized by immersion in a boiling liquid and/or vapour at a temperature above 160C., including driving gear 26 and guides 22 on which a tray or the like may travel up and down the vessel. After sterilization, the sterilized articles are raised to the top of the chamber and left to allow the sterilant to he evaporated by the heat of the articles before they are removed. A thermostat 28 in the vapour zone, a switch actuated by the opening and closing of the door 21 and a timer are used to effect automatic control of the sterilizing process.
Patent GB-311541-A (GB)
Title: Improved apparatus for securing together chairs and the like
IPC: A47C1/124
Filed: 1928-04-28
Abstract: 311,541. Fouracre, G. H. April 28, 1928. Securing chairs in rows.-Chairs c are secured together in rows, on battens e by means of clamps each comprising a base member a secured to the chair, a hinged member d distanced apart from the base, and means, such as a bolt i and nut k for clamping the hinged member upon the batten.
Patent GB-278772-A (GB)
Title: Improvements in balanced valves
IPC: F16K39/02
Filed: 1926-05-17
Abstract: 278,772. Wagner, F. May 17, 1926. Valves controlled by pilot or relay valves.- A valve of the kind connected to a piston subject to conduit pressure under the control of a throttling device and auxiliary valve seating on the main valve, has a dog on the auxiliary valve spindle adapted to engage the main valve to prevent the main valve coming into contact with the throttling member. In the form shown in the Figure, the main valve 3 is formed integrally with a piston 32 adapted to work in a liner 31 provided with ports 8 leading to the inlet 13. Inlet pressure passes through tubes 12 to a chamber 9 and thence through a passage 16 to the actuating chamber 5 under the control of a throttling member 14. In the form shovrn, the passage 16 is partly conical and partly cylindrical, but a conical throttling member working in connection with a cylindrical passage may be used. The member 14 is carried by the spindle 7 of the auxiliary valve 4 which controls the exhaust from the chamber 5, which spindle also carries the dog 71 adapted to co-operate with a ported member 90 formed) on the chamber 9. The dog is arranged in the low pressure zone so that substantially equal pressures act on both sides. In a modification the dog is arranged in a high pressure zone and adapted to engage the underside of the upper part of the chamber 9.
Patent GB-931084-A (GB)
Title: Improvements in or relating to binary devices
Inventor: HILLS MICHAEL TURNER
IPC: H03K3/286
Filed: 1960-04-08
Abstract: 931,084. Transistor trigger circuits; valve pulse producing circuits. GENERAL ELECTRIC CO. Ltd. April 7, 1961 [April 8, 1960], No. 12601/60. Class 40 (6). A circuit including a pair of reciprocallycoupled valves or transistors 5, 6, Fig. 1, forming a two-state trigger circuit, is characterized in that a power supply 4 is arranged to apply a series of voltage pulses which set the trigger circuit to one or other of its states depending upon the presence or absence of an input signal applied to a trigger input 17. With no input applied to terminal 17 the supply pulses cause transistor 5 to conduct. If an input pulse is applied immediately before a supply pulse to terminal 1, the capacitors 12, 14 charge and the supply pulse causes transistor 6 to conduct. The pulsed power supply 4 may comprise a further pair of transistors 21, 22, Fig. 2, forming a two-state trigger circuit which is switched by timing pulses applied to terminal 34. With the power supply of Fig. 4 a voltage is provided between pulses sufficient to maintain the circuit in a condition with either transistor 5 or 6 conducting, and the circuit may be either monostable in which case the state with transistor 16 conducting ceases after a predetermined time, or bi-stable having a reset circuit.
Patent GB-1527132-A (GB)
Title: Diazepine derivatives
IPC: C07D498/14
Filed: 1975-09-10
Abstract: 1527132 Substituted imidazobenzodiazepines F HOFFMANN-LA ROCHE & CO AG 10 Sept 1975 [11 Sept 1974] 12688/78 Divided out of 1527131 Heading C2C The invention comprises compounds having the general Formula VII in which A represents R 1  represents hydrogen, C 1-7  alkyl, phenyl alkoxy-C 1-7  alkyl, substituted phenyl, pyridyl or aralkyl; R 2  represents hydrogen or C 1-7  alkyl; R 3  represents hydrogen or C 1-7  alkyl; R 6  represents phenyl, mono- or di-substituted phenyl, pyridyl or mono-substituted pyridyl and the ring Z is selected from systems of Formula I(a), (b), (c) and (d)  in which R, represents hydrogen, halogen, CN, CF 3 , C 1-7  alkyl, optionally substituted amino hydroxy-C 1-7  alkyl or C 1-7  alkanoyl; X represents H, Cl, Br or I and T represents hydrogen or C 1-7  alkyl which may be prepared by cyclization of the corresponding 2-(α-alkanoyl amino)- diazepines with polyphosphoric acid or of the corresponding 2-[α-aminoalkyl]-diazepines in the presence of an alkyl orthoalkanoate (for details see Specification 1,527,131).
Patent GB-308340-A (GB)
Title: Improvements relating to spools
IPC: B65H75/18
Filed: 1928-04-30
Abstract: 308,340. M³ller, (nÚe Petzold), M. H. March 22, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Bobbins, spools, &c.-The surface of a spool 1 is reconditioned when damaged by grinding, coating with a " cement capable of entering into intimate union with the wood " and after further grinding applying a coating 3 of celluloid, paint or enamel.
Patent GB-200960-A (GB)
Title: Improvements in the construction of ships
IPC: B63B3/00
Filed: 1922-05-05
Abstract: 200,960. Maber, H. E. May 5, 1922. Hulls; framing.-In ships provided with a double skin whereby the main portion of the hull is divided into three longitudinal compartments which can be used for storage of cargo, the inner skin is supported by frame bars 11<a>, which for the most part rise towards each other in the manner of an arch and are tied to the framing of the outer skin by struts 12. The double skin terminates at the transverse bulkhead 6 and aft of this the space may be utilized for cabins, engines 14, shaft tunnel 15, and stern hold VI. The outer compartments may be used as coal bunkers, as chambers for reserve water ballast, and other purposes.