baber/WOPTO huggingface dataset:
Patent GB-420825-A (GB)
Title: New dyestuff intermediates
IPC: C09B29/08
Filed: 1933-06-07
Abstract: Azoanthranilic acid is manufactured by coupling a diazotized 5-amino-2-acylaminobenzoic acid with an aldehyde-bisulphite compound of anthranilic acid and removing the aldehyde-bisulphite and acyl groups by hydrolysis, or by coupling diazotized 3-amino-6-nitrobenzoic acid with an aldehyde-bisulphite compound of anthranilic acid, reducing the nitrogroup and removing the aldehyde bisulphite group by hydrolysis.  The product is an p  intermediate for the production of metalliferous azo dyes containing two atoms of metal.  In examples: (1) 5-aminoacetylanthranilic acid is diazotized and coupled with the monosodium salt of o -sulphomethylanthranilic acid and the product is boiled with caustic soda lye; (2) 3-amino-6-nitrobenzoic acid is diazotized and coupled with the monosodium salt of o -sulphomethylanthranilic acid and the product is boiled with caustic soda lye and then warmed with sodium sulphide solution. Specification 141,643, [Class 2 (iii)], is referred to. 5-Aminoacetylanthranilic acid may be obtained by the reduction of 5-nitroacetylanthranilic acid which is obtainable by the nitration of acetylanthranilic acid or by the oxidation of 5-nitroacetyl-o-toluidine.
Patent GB-1067990-A (GB)
Title: A method of improving the binding power of calcined dolomite
IPC: C04B2/10
Filed: 1966-04-14
Abstract: Dolomite is calcined in the presence of Cl2 and/or a compound containing chlorine (e.g. 0.1 to 10% by weight) to improve its bonding ability.  When the calcined dolomite is to be subjected to further processing, e.g. for the thermal recovery of magnesium, the chlorine compound is preferably not an alkali metal chloride.
Patent GB-886783-A (GB)
Title: A method of and apparatus for producing plated metal strip
Inventor: RABENAU FRIEDRICH WILHELM
IPC: C23C24/08
Filed: 1960-05-10
Abstract: 886,783. Powder metallurgy. SCHMIDT G. m. b. H. May 10, 1960. No. 16519/60. Class 82(1). A metal strip such as iron, steel, aluminium and magnesium and their alloys or copper is plated with a metal, particularly a bearing alloy by applying the metal powder from a rotatable metering container filled with a non oxidising gas, on to the preheated metal strip which is heated in a non oxidising atmosphere, the powder passing from the container through a heated duct and forming a sintered coating on the strip which is then cooled in the protective atmosphere. The powders applied are copper and light metal bearing alloys such as lead, bronze or aluminium, tin, bronze and the strip 1 is passed at a predetermined rate through a furnace 3, heated to 500‹-1000‹C in a protective atmosphere, the powder being applied from a rotatable container 10 with radial slits 11 registering on rotation with an outlet 8 which projects into a heated funnel 7. Drum 10 is filled with a protective gas and the powder is charged through a gas tight connector 12. The powder is discharged at a controlled rate via 8 and evenly deposited on the heated strip 1 which is supported on an asbestos plate 6 and the sintered coated strip is water cooled in a protective atmosphere.
Patent GB-119935-A (GB)
Title: Improvements relating to Water Heaters.
Inventor: JOHNSON GEORGE EDMUND
IPC: F24H1/40
Filed: 1917-11-10
Abstract: 119,935. Johnson, G. E. Nov. 10, 1917. Water-tube boilers.-A boiler for heating buildings consist of a single wall of tubes a<1> arranged in rectangular formation around the fire-chamber, and of tubes a<2> above the firechamber bent back so as to form a double-U with an opening a<3> across one side of the boiler. The fire may thus be served either from the top or side. The tubes may be continued downwards to form the firebars a'. The boiler shown has five elements each separately connected to flow and return pipes.
Patent GB-152634-A (GB)
Title: Dyestuffs of the indigo series
IPC: C09B7/04
Filed: 1920-06-18
Abstract: Mono- and di-halogen derivatives of 5 : 51 - dimethylindigo are prepared by halogenizing 5 : 51-dimethylindigo by the usual methods; the mono- and di-brom derivatives are described.  Reference has been directed by the Comptroller to Specification 13429/02.
Patent GB-612750-A (GB)
Title: Improvements relating to reels for hose pipes, cables and the like
IPC: B65H75/44
Filed: 1946-05-31
Abstract: 612,750. Self-coiling reels. PILLIN, J. B. May 31, 1946, No. 16606. [Class 99 (ii)] [Also in Group XXX] A self-coiling reel of the type described in Specification 481,030 and having a ratchet-andpawl mechanism to control the re-winding device is provided with a visual indicator actuated by the angular movement of the reel and so marked as to identify the condition of the ratchet mechanism to the operator of the hose. The indicator consists of a shutter 16 located in the rear of an aperture 5 in the wall of the reel cabinet, or supported by a frame if the reel be not enclosed, and having a tail-piece 17 which can be raised from the position shown by means of a projection 12 on an arm 11 pivoted at 10 to a bracket 9 fixed within the cabinet. The other end of the arm carries a resilient spring 13 which is in the path of pins 7 attached to the outer side of the cheek plate 6 of the reel; each pin corresponds to a tooth of the ratchet mechanism so that, when a pin is in contact with the spring, the pawl of the mechanism is in position to prevent backward rotation of the reel, and similarly, when the spring is free as in Fig. 2, the mechanism will instantly re-wind the hose or cable if the operator's grip on same is released. The portions of the shutter in view through the aperture 5 in the two positions (Fig. 2, and raised) are of different colours or carry suitable words so as to indicate to the operator the condition of the ratchet mechanism.
Patent GB-804319-A (GB)
Title: Improvements relating to electronic flash discharge tubes
Inventor: AINSWORTH THOMAS SOMNER
IPC: H01J61/90
Filed: 1954-06-04
Abstract: 804,319. Control systems for discharge apparatus. SIEMENS EDISON SWAN, Ltd. June 6, 1955 [June 4, 1954], No. 16621/54. Class 38 (4). [Also in Group XL (a)] A flash discharge lamp, Fig. 1, comprises a helical discharge tube 2 into the ends of which are fused an anode 3 and a cathode 4 and wound around which is a molybdenum wire trigger electrode 15 connected through a spark-gap 22 to a pin 20 in the base 8 of an outer envelope 1 the spark gap serving to isolate the trigger electrode after each flash, but being short enough to break down and conduct in response to a trigger pulse applied between the pin 20 and the pin 11 connected to the cathode 4. The end of the wire 15 is fused into a glass bead 16 into which is also fused one end of a molybdenum wire 17, the other end of which is welded to a nickel rod 19, one end of which is connected to the pin 20 and the other end of which is spaced from the end of the wire 15 to form the air spark gap 22 which can have a, length of 2 mms. In the circuit arrangement shown in Fig. 2 the anode 3 and cathode 4 of the discharge tube are connected to the terminals of a high-voltage D.C. power pack 23, the anode 3 being connected through a resistance 24, and the tube being shunted by a condenser 25. The trigger electrode 15 is connected across the spark-gap 22 to one of the output terminals of a pulse transformer 27, across the input terminals of which a multivibrator circuit 28 is connected, and the other output terminal of the transformer 27 is connected to the cathode 4. The multivibrator circuit 28 provides a series of low power D.C. pulses at a controllable frequency which are transformed by the pulse transformer 27 into high voltage D.C. pulses which are applied to the trigger electrode 15 and lower the breakdown voltage of the discharge tube causing the condenser to discharge therethrough. Specification 610,927, [Group XL (a)], is referred to.
Patent GB-1496228-A (GB)
Title: Omega radio navigation system receivers
IPC: G01S5/10
Filed: 1976-01-28
Abstract: 1496228 Radio navigation systems DECCA Ltd 28 Jan 1976 [22 April 1975] 16623/75 Heading H4D An OMEGA ratio navigation system receiver includes station selector switches 12, 13, with thumb wheels 10, 11, enabling selection of any of seven stations A to G and B to H respectively, pins 26, 27, on the thumb wheels co-operating to ensure that wheel 10 cannot be moved beyond a position determined by the setting of thumb wheel 11. Any station selection is thus necessarily a selection in a permissible time sequence. Switch 12 provides an "off" position, a "T" position for displaying time from an internal clock in the receiver, an "8" position for displaying figure eights on the display and the seven separate station selection positions selecting stations A to G. Further pins 20, 23, on the thumb wheels 10, 11, limit rotational movement to less than one complete revolution by engaging stop pins 21, 22, Fig. 3 (not shown) and 24, 25, on a fixed plate 15.
Patent GB-110815-A (GB)
Title: Beds for Lathes, Grinding and like Machines.
Inventor: MCWILLIAM GEORGE WILLIAM
IPC: B23Q1/01
Filed: 1916-11-21
Abstract: 110,815. McWilliam, G. W., and McWilliam, A. Nov. 21, 1916. Tables. - The bed of a lathe or grinding- machine consists of a tubular portion a of circular cross-section and vertical walls b, the slideways c being formed on the later. Ribs d and openings e nay be provided at intervals.
Patent GB-892784-A (GB)
Title: Pharmaceutical compositions comprising 3-pyridine acetic acid
IPC: A61K31/00
Filed: 1960-05-11
Abstract: Compositions for lowering the blood cholesterol level comprise a pharmaceutically acceptable carrier and 3-pyridineacetic acid. They may be in unit dosage forms suitable for oral or parenteral administration, e.g. tablets, capsules, powders and sterile aqueous solutions (preferably adjusted to about pH 7 with sodium hydroxide) and containing from 0.01 to 1 gram of the active substance.
Patent GB-291767-A (GB)
Title: Process of and apparatus for neutralising free fatty acids by means of glycerine
IPC: C11C3/02
Filed: 1928-06-08
Abstract: 291,767. Metallges. Akt.-Ges., (for. merly Metallbank und Metallurgische Ges., Akt.-Ges.). June 8, 1927, [Convention date]. Fats and fatty acids, purifying.-In the neutralization of free fatty acids by heating the fatty acid or mixture of oil and fatty acid with glycerine in vacuo, an increased degree of vacuum is obtained by placing an ejector between the reaction vessel and a water-cooled condenser. This may reduce the pressure in the reaction vessel to 2 m.m. In an example, a steamoperated ejector f is arranged between the reaction vessel a and the condenser g which is connected to a vacuum pump k,. A condenser d and separator e remove high-boiling substancesfrom the vapours evolved.
Patent GB-683495-A (GB)
Title: Thread storage-thread advancing device
IPC: D01D10/04
Filed: 1950-07-04
Abstract: 683,495. Thread storage and advancing reels, &c. AMERICAN VISCOSE CORPORATION. July 4, 1950 [Aug. 9, 1949], No. 16691/50. Class 120(ii) The bars 2 of a thread-storage-thread advancing reel &c. are formed hollow from material, e.g. glass, which is non-corrodible, by the chemicals used in the processing of the thread, the inner surface of each of the bars having a rigid reinforcing layer 9 of cellulose acetate, vinyl resin &c. adhered to the inner walls of the bar. The reinforcement, which may be coloured, may have natural or synthetic fibres of rayon, glass, wire, &c. incorporated in it. The bars may be attached to the end members 11 by bolts 16 taking through a flange 14 in each end member, thence through the bar and into a block of plastic &c. 15 inside the bar. Alternatively, separate brackets 20 bolted at 21 to the end members 17 may be provided, the bars provided with plastic &c. blocks 19 being bolted to the brackets at 22.
Patent GB-632773-A (GB)
Title: Improvements in and relating to the preparation of compounds derived from polynuclear organic acids and phenols
IPC: C07F1/00
Filed: 1946-07-27
Abstract: Silver salts are manufactured by reacting compounds of the general formula AR-X-RA, wherein A represents -SO3H, -COOH or -OH, R represents any mono- or polynuclear aryl group, substituted or unsubstituted, and X represents -O-, -S-, -S-S-, -SO2O-or (where A is -COOH) -CH2- or -CH(CH3)-, or salts (e.g. alkali metal salts) thereof, with silver compounds, e.g. silver oxide or hydroxide.  The reactants need not be used in stoichiometric proportions, excess of the acid component producing in some cases a solution of the salt, which is also soluble in an aqueous solution of a diarylmethanesulphonic acid.  The products are useful as antibacterial agents for the treatment of the skin, cuts, burns or abrasions.  In examples: (1) 2-naphthol-6-sulphonic acid is treated with phosphorus-oxychloride and the product is diluted with water, stirred with excess of silver oxide, filtered and evaporated; (2) naphthalene is heated with sulphur and sulphuric acid, excess sulphuric acid is removed with barium hydroxide and the product is neutralized with silver oxide; (3) salicylic acid is condensed with formaldehyde in the presence of sulphuric acid, and a solution of the sodium salt of the product is treated with silver nitrate solution to precipitate the silver salt; (4) the formaldehyde in (3) is replaced by acetaldehyde; (5) and (6) the experimental details in (1) and (2) are varied; (7) naphthalene-2-sulphonic acid is heated with sulphur monochloride and the resulting solution of bis-(naphthalene-2-sulphonic acid) mono- or di-sulphide is treated with the equivalent amount of freshly-prepared silver oxide. Specifications 547,564, 552,751, 584,196, 603,616 and 613,040 are referred to.ALSO:As antibacterial agents for the treatment of the skin, cuts, burns or abrasions may be employed silver salts of compounds of the general formula AR-X-RA (wherein A represents -SO3H, -COOH or -OH, R represents any mono- or polynuclear aryl group, substituted or unsubstituted, and X represents -O-, -S-, -S-S- or -SO2 -O-, or, where A is -COOH, also -CH2 or -CH(CH3)-, dissolved in an aqueous solution of the parent acidic component or of a diarylmethanesulphonic acid. Specifications 547,564, 522,751, 584,196, [Group IV], 603,616 and 613,040, [both in Group IV(b)], are referred to.
Patent GB-1210174-A (GB)
Title: Basic azo dyestuffs and processes for their manufacture
IPC: C09B44/12
Filed: 1968-04-08
Abstract: 1,210,174. Monoazo basic dyes. FARBWERKE HOECHST A.G. 8 April, 1968 [8 April, 1967], No. 16731/68. Heading C4P. Mono-azo basic dyes free from sulphonic and carboxylic acid groups of which the cation has the Formula I in which R 1  and R 2  each represents an alkyl group containing 1-4 carbon atoms, R 3  and R 4  are each hydrogen, an alkyl group of 1-4 carbon atoms or an aryl radical and the benzene nucleus a may contain non-ionogenic substituents are prepared by (a) diazotizing an amine of Formula II and coupling with a coupling component of Formula III preferably dissolved in 80-100% sulphonic acid or (b) an azo dye of Formula IV is quaternated with a quaternating agent preferably in an organic solvent or excess of quaternating agent, organic solvents being hydrocarbons, chlorinated hydrocarbons or nitro hydrocarbons. The dyes preferably have anions of strong acids e.g. sulphuric acid or may be in the form of a double salt with zinc or cadmium halides. The dyes give red shades.,
Patent GB-664105-A (GB)
Title: Improvements relating to apparatus for dispensing paste, jelly-like and liquid substances
IPC: A47K5/12
Filed: 1949-06-24
Abstract: 664,105. Dispensing liquids and jellylike substances. CHURCHILL, H. W. S., and SCHOFIELD, C. S. June 24, 1949. No. 16809/49. Class 116. [Also in Group XXV]. Apparatus for  dispensing paste, jelly - like and liquid substances comprises a dispensing head 1 supporting a detachable receptacle 4 holding the substance to be dispensed and incorporating two locks, one lock 62 for securing the dispensing head to a mounting bracket 54 and the other lock pensing head and being releasable by a key 46 for securing the receptacle to the disonly when the other lock is released.
Patent GB-725232-A (GB)
Title: System for transmitting signals in two directions
IPC: H04B1/56
Filed: 1953-06-18
Abstract: 725,232. Two-way transmission. HAZELTINE CORPORATION. June 18, 1953 [July 18, 1952], No. 16860/53. Class 40 (4). [Also in Group XL (c)] In a two-way transmission system, a transistor is employed as a two-way repeater and is controlled by an oscillator so as to be operative in the two directions alternately. An alternating current source 51 (e.g. an oscillator), of a frequency at least twice that of the highest frequency to be transmitted over the system, feeds the primary winding 52, so that biasing potentials are applied by secondary windings 18 and 31 to the emitter and collector electrodes 13 and 14 of the transistor 10. The transistor may be of the point-contact or junction type, but it will be assumed to be an N-type germanium point-contact transistor. During one half-cycle of the source 51 the right-hand ends of windings 18 and 31 will go positive, so that electrode 13 acts as an emitter and electrode 14 and a collector, rectifiers 20 and 32 conduct, and rectifiers 19 and 33 are blocked. Speech currents from the microphone at station 15 are thus applied from the lower half of the secondary of transformer 23 to the transistor, are amplified, and applied to the whole of the secondary of transformer 37, and thence to the loud-speaker at station 30. During the next half-cycle of source 51, an identical circuit is provided for transmission in the opposite direction. The low-impedance input circuits and high-impedance output circuits allow the transistor to operate with increased efficiency.
Patent GB-1268133-A (GB)
Title: Improvements in or relating to an ornamental article
IPC: B44C5/04
Filed: 1970-04-09
Abstract: 1,268,133. Ornamental article. FUJII SHOTEN K.K. 9 April, 1970 [30 Dec., 1969]. No. 16886/70. Heading B6G. As shown in Figs. 1 and 2, an ornamental article comprises a board 1 provided with a representation such as a picture or design on the surface thereof, a non-drying, pressure sensitive adhesive layer 2 coated on the surface of the representation, optionally a frame member 9 adhered to the board along its peripheral edge, beads 6 adhered to portions of the representation by the adhesive layer 2, a glass plate 7 placed on the beads and an adhesive marginal tape 8 joining the board 1 and the glass plate together. The adhesive layer 2 may be provided by a transparent film having adhesive on its opposite faces, the adhesive surfaces being covered with protective paper before use. The protective paper may be divided into sections serving to expose particular portions of the adhesive layer, arid may itself be transparent.
Patent GB-487665-A (GB)
Title: Improvements in knitted fabric and in the production thereof
IPC: D04B1/06
Filed: 1936-12-18
Abstract: 487,665. Knitted fabrics. HOSIERY DEVELOPMENTS, Ltd., and MILLS, R. K. Dec. 18, 1936, No. 16917. [Class 74 (ii)] In a fabric having locked or tied stitches of the type described in Specification 329,098, [Class 74 (ii)], the length or size of the stitchlocking loops is greater than that of its associated stitch loop to such an extent that on release of the latter, e.g. by fracture of a subsequently formed loop 3, the long locking loop 2b maintains a connection between the stitch loop 1b and the next previously formed stitch loop 4. The locking thread may be substantially evenly divided between the stitch wales and sinker wales and the length of stitch thread and stitch locking thread may be in the ratio of 10 to 11. Specification 422,779 also is referred to.
Patent GB-911294-A (GB)
Title: Improvements in or relating to printing machines
Inventor: MOSEGAARD MARIUS
IPC: B41F35/06
Filed: 1958-05-27
Abstract: 911,294. Printing machines; set-off preventing. ALLERS ETABLISSEMENT A.S., CARL. Dec. 2, 1958 [May 27, 1958], No. 1.6952/58. Class 100 (2). A rotary offset printing machine includes a scraper to clean the surface of the offset cylinder blanket as it rotates, the scraper comprising flexible elements which are secured at their ends so that when the elements are pressed against the blanket they conform between their ends to the peripheral form of the blanket to exert an extended scraping action thereon. The scraper elements consist of wires 9 stretched obliquely between the two side edges of an arcuate, slightly resilient holder 6 which is mounted by means of arms 7 on a shaft 8 and is parallel to the axis of the offset cylinder 1. The shaft 8 is rotated by means of a lever 11 and spring 13 so as to position the scraper with the wires 9 either out of or in contact with the blanket on the cylinder 1. In the latter position the wires scrape off stale ink and other foreign matter as the cylinder 1 rotates. The interior of the holder 6 is in communication with a source of suction and the matter removed by the wires is thereby sucked away from the holder, baffle plates 10 localizing the sucking action to the operative zone of the scraper wires. The scraper may extend the full width of the offset blanket or only part of the width and in either case may be reciprocated in a direction parallel to the axis of the cylinder. The wires 9 may be kept in constant or intermittent contact with the blanket. In a modification, the wires 9 are replaced by a resilient metal sheet having strips stamped out of the middle portion thereof, the marginal portions of the sheet being clamped in a holder.
Patent GB-1511415-A (GB)
Title: Connecting strips
IPC: H01L21/60
Filed: 1976-04-27
Abstract: 1511415 Semiconductor devices SIEMENS AG 27 April 1976 [24 June 1975] 16956/76 Heading H1K A contacting strip comprises a ribbon of synthetic resin carrying a plurality of conductive patterns each including a number of strips the ends of which project into an aperture in the ribbon, the cross-section of each strip being uniform over most of its length and different from that of another of the strips. As described the ribbon is of polyimide and the patterns formed by photoetching a copper coating thereon. The inner ends of the strips extending into the aperture register with contact pads of a semiconductor device e.g. I.C. chip to be located therein and the outer ends (a) terminate in bonding pads or (b) are joined by a lead frame. After soldering the device pads to the conductive pattern the contacted device is in case (a) cut off from the strip, and attached via its bonding pads to a further structure which is then inserted in a housing or potted in "resin", or in case (b) potted in resin and the conductive strips severed from the lead frame.
Patent GB-1072209-A (GB)
Title: Polarity detecting device
IPC: G01R19/14
Filed: 1966-04-19
Abstract: 1, 072, 209. Polarity detectors. ELEKTROMESSTECHNIK WILHELM FRANZ KOMM GES. April 19, 1966 [April 24, 1965], No. 17142/66. Heading G1U. A polarity detecting arrangement comprises a first switch (A) responsive to positive impulses, and a second switch (B) responsive to negative impulses, the two switches being connected to a common input and being so interconnected that actuation of one switch by an impulse inhibits actuation of the other by a subsequent impulse of the opposite polarity. For testing the polarity of connections in an electro-acoustic system a test generator (7) may be employed which generates a positive pulse. Correct connection is then indicated by a first lamp (L1) when lit, and incorrect by a second lamp (L2).