baber/WOPTO huggingface dataset:
Patent GB-706426-A (GB)
Title: New secondary amines
Inventor: KNIGHT ARTHUR HOWARD
Filed: 1951-05-25
Abstract: The invention comprises amines of the general formula O2N-R-NH-R1, wherein R stands for a phenylene radical which may optionally be substituted by, for example, alkyl, halogen, or alkoxy, wherein the -NO2 group is in a meta or para position with respect to the NHR1 group and wherein R1 stands for a b -phenoxyethyl or g -phenoxypropyl group, the phenyl group of which may in each case optionally carry one or more substituents selected from halogen, alkyl radicals of 1 to 6 carbon atoms and cycloalkyl radicals.  They may be prepared by heating a substance of the formula O2N-R-NH2, wherein R has the above meaning and the -NO2 group is in a m- or pposition with respect to the -NH2 group with an approximately equimolecular proportion of an appropriate b -phenoxyethyl or g -phenoxypropyl halide in aqueous medium in the presence of an acid-binding agent.  A water-miscible organic solvent may also be present.  Suitable acid-binding agents are alkali metal and alkaline earth metal carbonates or hydroxides. As solvents are mentioned n-propyl alcohol, n- and sec.-butyl alcohols and b -ethoxyethanol.  As phenoxy alkyl halides are specified b -phenoxyethyl chloride, bromide and iodide, g -phenoxypropyl bromide, b - o- or p-chlorophenoxyethyl chloride and bromide, b -2:4-dichlorophenoxyethyl bromide, b - o- or p-tolyloxyethyl bromide, b -p-tert.-butylphenoxyethyl bromide, b -p-tert.-amylphenoxyethyl bromide.  Mono-nitro primary amines specified include m- and p-nitroanilines, 4- or 5-nitro-2-aminotoluene, 4-nitro-2-aminoethylbenzene, 4- or 5-nitro-2-aminoanisole and 2-chloro-4-nitro-aniline.  In an example (1) 4-nitro-N-b -phenoxyethylaniline is prepared by reacting p-nitroaniline and b -phenoxyethyl bromide in the presence of water and precipitated chalk.  In a similar manner there are prepared from the appropriate reactants, in further examples: (2) 3-nitro-N-b -41-methylphenoxyethylaniline; (3) 4-nitro-N-b -41-chlorophenoxyethylaniline; (4) 4-nitro-2-N-b -21-chlorophenoxyethyl-toluidine; (5) 3-nitro-N-b -21:41-dichlorophenoxyethylaniline; (6) 3-nitro-N-b 1-41-tert.-amyl-phenoxyethyl aniline; (7) 4-nitro-2-N-b -41-chlorophenoxyethylanisidine; (8) 4-nitro-N-b -41-cyclohexylphenoxyethylaniline; (9) 2-chloro-4-nitro-N-b -41-methylphenoxyethylaniline; (10) 4-nitro-N-b -31:51-dimethylphenoxyethylaniline; (11) 4-nitro-2-N-g -21-methylphenoxypropyltoluidine; (12) 5-nitro-2-N-b -phenoxyethylanisidine; (13) 5-nitro-2-N-b -phenoxyethyltoluidine; (14) 4-nitro-2-N-b 1-41-chlorophenoxyethyltoluidine; (15) 4-nitro-2-N-b -21:41-dichlorophenoxyethyltoluidine; (16) 4-nitro-N-b p-tert.-butylphenoxyethylaniline.  The b -phenoxyethyl- and g -phenoxypropyl chlorides and bromides may be obtained by reacting the appropriate phenol with ethylene or propylene dichloride or dibromide in the presence of alkali. The iodides may be obtained by reacting the corresponding bromides with sodium iodide in an organic solvent, e.g. ethyl alcohol.
Patent GB-669226-A (GB)
Title: Improvements in spray booths
Inventor: NEWCOMB AVON LOCKHART
IPC: B05B14/46
Filed: 1950-05-17
Abstract: 669,226. Washing air. NEWCOMBDETROIT CO. May 17, 1950, No. 12297/50. Class 55 (ii). A paint spray booth is provided with a wet type air cleaner, in which water is used to effect the removal of paint fog from the air, the cleaner being separated from the booth by a vertical partition, over the front of which flows a water curtain, contaminated. air being withdrawn from the stream in two separate streams, one passing over the partition and down through a conduit through which water cascades at the rear side thereof, the other passing below the partition and through the water curtain, baffles causing the two streams to impact transversely into each other to complete the washing action. In the apparatus shown, part of the paint contaminated air from a booth 11 is drawn by a fan 17 over the top of a partition 25 and down through a conduit formed at the back thereof by a baffle 27, the remainder being drawn through an opening 39 between the bottom of the partition and the surface of water held in a tank 19. A small tank 22, open at the top at 38, is mounted along the top of partition 25 and a pump circulates the water from tank 19 to this small tank, the water overflowing from the tank to form a water curtain on the front of the partition and cascading down over the ribbed rear side thereof. The air passing down through the conduit is thus washed and, with entrained water droplets, is deflected by curved baffles 26 and 28 against a baffle 29, impacting transversely into the other stream which has picked up water in passing through the water curtain falling from partition 25 into tank 19. After turbulent mixing and cleaning, the confluent streams are sharply reversed by baffle 28, causing deposition of some water and paint drops, the remainder being removed from the air as it passes to the outlet, by a baffle 30.
Patent GB-119264-A (GB)
Title: Improvements in and connected with Scales for Automatically Weighing Granular or like Substances.
IPC: G01G13/00
Filed: 1917-08-28
Abstract: 119,264. Avery, W. & T., and Barra clough, A. Aug. 28, 1918. Automatic-feed weighers. -Scales for automatically weighing granular &c. substances are provided with means whereby the amount of material in the supply hopper controls through mechanism the operation of the weigh-hopper discharge door, so that, when the supply falls below a predetermined minimum, the discharge door is held open until the supply of grain &c. has been increased, when the operations of the scale are automatically restarted. A plate 6 is pivotally mounted on a shaft 4 within the supply hopper 5, and a weighted arm 7 on the shaft 4 is connected by a link 9 to a lever 11 which is fulcrumed on a bracket 13 on the tramework 14 of the scale and connected by a bolt 15 to a vertical rod 16. An arm 17 on the rod 16 is connected by a pin-and-slot connexion 19, 20 to a vertical bar 18 or equivalent device arranged adjacent the side of the weigh hopper 22 with its lower end near the rear linkage 23 of the pivoted discharge door 24 of the hopper. The bar 16 is guided at its lower end by a pin 26, and the bar 18 near its lower end runs between guide-rollers 28. When there is sufficient grain &c. in the hopper to permit of the continued operation of the scale, the bevelled lower end 21 of the bar 18 is held out of the path of the linkage 23, but when the supply of grain &c. falls below the predetermined minimum, the pivoted plate 6 automatically moves upwardly and lowers the bar 18 so that its end 21 is in the path of the linkage 23 and holds the door 24 open. The bar 18 may be pivotally connected direct to the arm 7; and instead of a plate 6, a trough, smallmesh sieve, or other form of baffle may be used.
Patent GB-1524298-A (GB)
Title: Control apparatus for an elevator system
IPC: B66B1/30
Filed: 1976-03-26
Abstract: 1524298 Elevator control system NIPPON OTIS ELEVATOR CO and MEIDENSHA KK 26 March 1976 [3 April 1975 1 Sept 1975 (2)] 12319/76 Heading G3N An elevator control system causes a lift cage 10 to follow a predetermined speed reduction pattern, set by circuit 30, to stop the cage at a floor. A retarding instruction switch S 1 and a position check switch S2 are provided for each floor. The latter lies at a reference point a predetermined distance from the stopping position and the speed pattern is corrected in accordance with an error obtained by comparing, in comparator 36, a reference velocity from circuit 30 and an actual speed measured by tachometer 24 connected to elevator drive motor 22. The error is fed to memory circuit 40 to adjust circuit 30. Comparator 32 measures the difference between the actual speed and the speed pattern from circuit 30 and circuit 48 uses this difference to control motor speed. This is intended to give a smoother ride during stopping. In another embodiment Fig. 2B (not shown) the comparator 36 compares outputs of units 38 and 30.
Patent GB-1428930-A (GB)
Title: Liquid level detectors
IPC: G01F23/74
Filed: 1974-03-20
Abstract: 1428930 Magnetic switches NIPPONDENSO CO Ltd and TOYOTA JIDOSHA KOGYO KK 20 March 1974 [31 March 1973] 12383/74 Heading H1N [Also in Division G1] A liquid level detector, e.g. for the oil pan 1 of a vehicle, of the type comprising a reed contact unit 16 actuated by a permanent magnet 19 supported on a float 18 rising and falling with the liquid level, includes a support plate 4 to which a case 15 housing the contact unit 16 is attached at right angles, a slender elongate float 18 adapted to be inserted horizontally through a small mounting opening 1a in the side wall of the pan 1, and a stop 17 to prevent detachment of the float from the case. The float may be rectangular or elliptical, and preferably has one or more notches 18a or apertures loosely engaged by projecting members 5a extending from the support plate 4 to prevent the float turning and thus to facilitate its withdrawal through aperture 1a. The contact unit 16 is operable to make or break a circuit through a terminal 12, plate 6, unit 16, case 15, support plate 4 (insulated from plate 6 by an insulating board 5) and body portion 2.
Patent GB-1381564-A (GB)
Title: Focal plane shutter for a camera
IPC: G03B9/36
Filed: 1973-03-15
Abstract: 1381564 Shutter mechanism SEIKO KOKI KK 15 March 1973 [15 March 1972] 12426/73 Heading G2A A shutter comprises a group of shutter-  opening blades and a group of shutter-closing blades, each group comprising a slit-forming blade and a plurality of other blades and having a primary operating lever for all the blades and  an auxiliary operating lever for the slit-forming blade, the primary and auxiliary operating levers having a pin and slot connection. Blade groups 11 and 14 of similarly constructed and operated shutter-opening and -closing blades are situated between a shutter base plate 1 having a window 2a and a holding plate 9 having a window 2b. Blade group 11 (shown in the closed position in Figs. 1 and 2 and in the open position in Fig. 4) is operated by a clockwise biased primary shutter-opening lever 3 having a pivot 3b and an auxiliary shutter-opening lever 10 having a pivot 10a. It comprises (a) a plurality of blades 11b-e having a common fixed pivot 12 and curved slits 11h-m accommodating a pin 3c carried by lever 3 and (b) an exposure slit-forming blade 11a pivoted about pin 3c and having a slit 11f accommodating a pin 10c carried by lever 10. On manual shutter release operation, an electromagnet 7 is energized (holding a detent lever 6 and preventing action of a primary shutter-closing lever 5 and an auxiliary shutter-closing lever 13) and an anti-clockwise biased detent lever 4 is rotated clockwise, allowing anti-clockwise rotation of a lock lever 8 and clockwise rotation of lever 3 and consequential anti-clockwise rotation of lever 10. Rotation of lever 3 initiates a time delay, at the end of which the electromagnet is de-energized, allowing clockwise rotation of lever 6 and clockwise rotation of lever 5 and consequential anti-clockwise rotation of lever 13.
Patent GB-1535665-A (GB)
Title: Access arrangements for use with recording and/or reproducing apparatus
IPC: G11B27/28
Filed: 1977-03-24
Abstract: 1535665 Data recording system SONY CORP 24 March 1977 [9 April 1976] 12472/77 Heading G3N Data, e.g. music, is recorded in blocks 1-n on, e.g. magnetic tape or a medium read by a light beam. Each block is preceded by address pulses S equal in number to the block number plus a predetermined integer, e.g. 1. Recording/reproducing apparatus Fig. 2, (not shown) is intended to operate so that reading can occur at any point along the tape (i.e. without reading all the addresses from the start) and to eliminate problems caused by noise pulses. A counter counts the address pulses and the tape is stopped when the count equals a set address number.
Patent GB-1305501-A (GB)
IPC: C21B7/00
Filed: 1971-04-30
Abstract: 1305501 Blast furnace operation NIPPON STEEL CORP 30 April 1971 [28 May 1970] 12500/71 Heading C7D Apparatus for blowing reducing gas into a blast furnace 5 includes a cracking furnace 3 to which hydrocarbons air and steam are metered by valves 2 governed by controller 1; the latter is associated with valve controller 9 which receives information from pressure sensors 4, 8 on the blast furnace and the reducing gas exhaust line respectively, and which controls pressure control valve 6 and blast furnace inlet valves 12. The system operates to maintain a desired pressure of reducing gas dependent on the requirement of the blast furnace but to reduce this pressure rapidly when the blast pressure is reduced. The reducing gases may pass through coolers 10 or 11. The automatic control system may be manually over-ridden when necessary.
Patent GB-418824-A (GB)
Title: Improvements in or relating to the production of printing surfaces
IPC: B41C3/00
Filed: 1933-04-29
Abstract: 418,824. Printing-surfaces. CHAMBERLAIN, S. B., St. Luke's Printing Works, Old Street, London. April 29, 1933, No. 12530. [Class 100 (ii).] Printing-plates are prepared from relief or intaglio originals by taking a mould from the original in a non-fibrous plastic composition, e,g. the composition known under the Registered Trade Mark "Bakelite," and coating the surface of the mould with finely divided gold or other metal, preferably by exposure to cathode rays in a vacuum. The mould may be electroplated with nickel or chromium and used directly as a printing-surface, or may be used for the production of an electrotype, or a second mould in the plastic composition may be produced from the first mould, and coated with the finely divided metal and finally chromium plated. The moulded plates may be curved for use on printing-cylinders. A large printing-plate may be produced from a number of moulds assembled together. Specification 278,460, [Class 100 (ii)], is referred to.
Patent GB-759552-A (GB)
Title: A grid for electric discharge tubes
IPC: H01J19/00
Filed: 1954-04-30
Abstract: 759,552. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. April 30, 1954 [May 8, 1953], No. 12618/54. Class 39 (1). [Also in Group XXII] A grid is wound of a wire 2 having a coating 3, the coating being subsequently removed, either wholly or in part. If removed wholly, it may be necessary to tighten the grid again by stretching the frame members 1. The coating may be silver (on a gold, platinum or aluminium core), or molybdenum (on a tungsten core), or aluminium. The coating may be removed by chemical, electrical, or thermal means. Sufficient of the coating may be left to provide a focusing effect. The frame members 1 may have sharp edges, Fig. 4, to facilitate exact spacing.
Patent GB-768925-A (GB)
Title: Glass
IPC: C03C3/089
Filed: 1955-05-02
Abstract: 768,925. Glass. CORNING GLASS WORKS. May 2. 1955 [May 21, 1954], No. 12703/55. Class 56  A glass consists essentially, by analysis by weight, of (percentages) SiO 2  59-67, TiO, 2-8, (SiO 2  + TiO, being 62-75), Na 2 O 3-13, K,O 3-13, (Na 2 O + K 2 O being 12-16), B 2 O 3  4-12, ZnO with or without MgO and / or PbO 4-15 (ZnO being at least 4 and being at least one half of the total ZnO + MgO + PbO) and Al 2 O 3  0-5 (The B 2 O 3  + ZnO + MgO + PbO + Al 2 O 3  being 9-23).
Patent GB-1180450-A (GB)
Title: Arrangements for Determining the Moisture Content of Solid Substances by means of Neutron Irradiation
IPC: G01N23/204
Filed: 1967-03-17
Abstract: 1,180,450. Measuring moisture content by neutrons. RHEINISCHE KALKSTEINWERKE G.m.b.H. March 17, 1967, No.12710/67. Addition to 1, 063, 477. Heading G1A. In an arrangement for determining the moisture content of solid substances comprising a fast neutron source and a thermal neutron detector located in a cavity at least partially defined by the solid substance, a solid hydrogen-containing material adjacent said solid substance and capable of reflecting fast neutrons as thermal neutrons and a neutron absorbing screen between said reflecting material and said detector. The screen may be made from a compound or alloy comprising cadmium, boron or gadolinium with iron or aluminium. The thermal neutron detector may be a scintillation counter fission chamber or ionization chamber.
Patent GB-353934-A (GB)
Title: Improvements in cigarette, cigar and card cases
IPC: A24F15/12
Filed: 1930-04-25
Abstract: 353,934. Cases for cards, cigarettes, &c. WYNN, J. H., Supreme Works, Soho Hill, Handsworth, Birmingham. April 25, 1930, No. 12733. [Class 18.] A case for cigarettes, cigars, cards, &c., comprising two halves hinged together with a catch between them, and a spring-influenced hinged flap f in the body and/or lid at one side or end to extend over the ends of the cigarettes &c. e and hold them in position, has the ends f<5> of the flap turned inwardly to embrace a row of cigarettes &c. Hinge barrels secured to the underside of the flap cooperate with similar barrels on a plate g secured to the case, and the hinge pin consists of a spring wire h of rectangular or other section gripped at its ends by a barrel on the flap and a -barrel on the plate g respectively, The flap may have a rightangular wall along one of its longitudinal edges to take the hinge barrels, and the plate g may be dispensed with and the flap hinged to barrels on the rim a2 of the case.
Patent GB-185463-A (GB)
Title: A mode of and/or means for transmitting photographs, messages, views, and like devices by wire or wire or wireless telegraphy
IPC: H04N3/04
Filed: 1921-05-04
Abstract: 185,463. Whiston, E. W. May 4, 1921. Copying telegraphs; television apparatus.-In a system for transmitting pictures &c. by telegraphy, a selenium cell or other photo-electric device at the transmitting station actuates an arrangement for varying the amount of light at the receiving station by the received currents acting upon an arc or a Geissler tube without the use of contact-making relays. The light from the picture 1 is projected on to an aperture in a plate 4, before or behind which passes a perforated opaque film 5 with the perforations preferably arranged diagonally, and the light passed by the film is focussed by a lever 6 on to a selenium cell or other photo-electric device 7. In the circuit of the cell 7 is the primary 26 of a transformer, the secondary 27 of which is connected across the terminals of a " speaking-arc " 21. The light from the arc passes through a perforated film 20 synchronized with the film 5. Instead of the arc 21 a Geissler or like tube with a luminous discharge may be employed. According to the Provisional Specification, a screen which phosphoresces for a short time may be used at the receiving station when the pictures are sent slowly.
Patent GB-127157-A (GB)
Title: Improvements in Rotary Pumps.
Inventor: MERCER ALBERT VICTOR
IPC: F04C2/46
Filed: 1918-08-06
Abstract: 127,157. Mercer, A. V. Aug. 6, 1918. Movable-abutment type; packing vanes. - The two-armed hinged abutment 0 of a rotary pump is actuated by the piston vane N, which is fitted with an adjustable packing-piece G'. Fluid is drawn in through a port A and discharged through a port D.
Patent GB-1283505-A (GB)
Title: Substituted alkanol-thioalkyl-amines
IPC: A61K31/135
Filed: 1971-05-03
Abstract: 1283505 Aryl substituted alkanol-thioalkylamines ALFA FARMACEUTICI SpA 3 May 1971 [18 May 1970] 12793/71 Heading C2C Novel compounds (I) (including salts thereof) where Y<SP>1</SP> and Y<SP>2</SP> are H or a free, etherified or esterified hydroxy, R<SP>1</SP> is C 2  to C 6  hydroxyalkylene, the hydroxy group of which is not bound to the same carbon as is bound to nitrogen, and R<SP>2</SP> is C 2  to C 6  alkylene, are made by condensing (II) or its salt with (III), or (VII) or its salt with (VI) (X is halogen and R<SP>3</SP> is C 2  to C 6  hydroxyalkylene or oxoalkylene; if R<SP>3</SP> is oxoalkylene the keto-amine obtained is subsequently reduced). Compounds (I) may be converted one into the other by standard methods. The following compounds are also prepared: 1 - phenylthio - 2 - bromopropane and p - benzoyloxy - α - (1<SP>1</SP> - methyl - 2<SP>1</SP> - phenylthioethylamino)-propiophenone hydrochloride. Pharmaceutical preparations having diuretic and hypotensive action, suitable in the treatment of coronary diseases and acting as peripheral vasodilators contain (I) as active ingredient. Administration may be orally or by injection.
Patent GB-1097173-A (GB)
Title: New antibiotic, pyrrolnitrin, and production thereof
IPC: C07D207/34
Filed: 1965-03-25
Abstract: <FORM:1097173/C2/1> An antifugal antibiotic, pyrrolnitrin, 3-(2-nitro - 3 - chlorophenyl) - 4 - chloro - pyrrole, is prepared by cultivating a pyrrolnitrin producing strain of Pseudomonas genus in a liquid culture medium under aerobic conditions until substantial amount of the antibiotic is produced. Species of Pseudomonas specified as Ps. pyrrocinia (Nov. Spec.), Ps. pyrrolnitrica (Nov. Spec.), Ps. aeruginosa, Ps. mephitica, Ps. ovalis and Ps. schuylkilliensis. Pyrrolnitrin is recovered from the fermentation broth by treating the centrifuged cell cake with a solvent, e.g. acetone, removing impurities from the extract by treatment with active carbon, concentrating the extract and re-extracting into another solvent for the antibiotic, e.g. butyl acetate, washing the extract with aqueous acid and/or alkali, concentrating and precipitating by means of a non-solvent, e.g. cyclohexane. Further purification may be by (a) chromatography on alumina, magnesium silicate or silica gel and (b) recrystallization from mixed solvent, e.g. methanol - cyclohexane.  Pyrrolnitrin is soluble in many solvents, e.g. methanol, acetone, ether, petroleum, benzine, benzene and butyl acetate, but is sparingly soluble in water and cyclohexane. I.R. (Fig. 1), U.V. (Fig. 2, not shown).  Fig. 3 (not shown) is the curve of the nuclear magnetic resonance spectrum.  Pharmaceutical preparation for topical application, e.g. alcoholic solutions and ointments, comprise pyrrolnitrin alone or with other medicaments for the treatment of fungal infections.
Patent GB-580350-A (GB)
Title: Improvements in continuous grating structure
IPC: E04C2/42
Filed: 1944-07-05
Abstract: 580,350. Continuous grating structures. IRVING, W. E. July 5, 1944, No. 12815. Convention date, March 14. [Class 107] In a continuous traffic-bearing grating structure like panels A, B and C, arranged in end to end relation, are joined together at their ends by a splice, so as to give uniform continuity of surface. Each panel is made up of straight bars 10, 11, 12, 13, which have crimped metal strips 14, 15 and 16 interposed between them, and which terminate at one end in offset tongues 19, and at the other end has a splicing portion 18, which portions of panel B abut against shoulder portions 23 of panel A. A crimped strip 17, having adjacent ends 25b of panel A and 36 of panel B joined by a weld, engages the bar 13 and forms one longitudinal side of the grating, the bar 10 being the other. The arms 37 of strips 14, 15 and 16 of panel A are welded to the tongues 19 of bars 11, 12 and 13, whilst the ends 35, 36 of strips 14, 15, 16 of panel B are welded to lugs 24 on the tongues 19 of bars 11, 12 and 13 of panel A. The contacting portions 25, 26 of the crimped strips are riveted to the bars 11, 12, 13 and initially are bolted to the bar 10. These bolts are replaced by rivets when securing panels A and B to panel C, whilst the contacting portions 25a of strips 14 and 16 of panel A engage with the portions 18 of bars 10 and 12 of panel B.