baber/WOPTO huggingface dataset:
Patent GB-1112865-A (GB)
Title: Basic dyes, their production and use
Inventor: ALTERMATT RUDOLF
IPC: C09B39/00
Filed: 1965-08-20
Abstract: The invention comprises dyes of the formula <FORM:1112865/C4-C5/1> where A is a dyestuff residue free from sulphonic acid groups; R1 and R2 are H or alkyl; y is a direct bond or a bivalent radical; -CZ is an aromatic heterocycle which contains a quaternary nitrogen and may contain further hetero atoms or substituents, or be condensed with further rings; n is 1 or 2 and m is an integer greater than or equal to n.  The compounds are prepared either by reacting compounds of the formulae <FORM:1112865/C4-C5/2> <FORM:1112865/C4-C5/3> where -CZ1 is -CZ or an unquaternized version thereof, B is A or is the residue of a compound capable of forming A, or by first reacting the above vinyl compound with ammonia or a primary amine to give <FORM:1112865/C4-C5/4> where R is H or optionally substituted hydrocarbon which is then reacted with a dyestuff or dyestuff intermediate containing a reactive group to give a compound of the formula <FORM:1112865/C4-C5/5> and if necessary B is then converted to A and the dyestuff quaternated.
Patent GB-885985-A (GB)
Title: Internal combustion engine exhaust valve cooling means
Inventor: ZUHN ARTHUR ATTWOOD
IPC: F01P1/08
Filed: 1960-10-20
Abstract: 885,985. Cooling valves; cylinder heads. CATERPILLAR TRACTOR CO. Oct. 20, 1960, No. 36043/60. Classes 7(2) and 7(6). An exhaust valve cooling means comprises a passage way 24, 25, Fig. 1, entirely within a cylinder head 10, through which a portion of the intake air passing through an intake valve chamber 21 is ducted to an exhaust valve chamber 22. Reversal of gas flow is prevented by a check valve 30, loosely positioned in chamber 26, or in a modification, Fig. 2, by an annular valve stem projection 33 which enters and closes a sleeve 34 when the valve 12 is open. Intake air which is heated by the exhaust valve can be directed with the exhaust gases to the turbine of a supercharger.
Patent GB-895756-A (GB)
Title: Improvements in and relating to thiocyanate solutions
Inventor: REEDER FRANK
IPC: C01C3/20
Filed: 1959-10-26
Abstract: <PICT:0895756/III/1> The sulphate ion content of an inorganic thiocyanate solution supersaturated in an inorganic sulphate is reduced by passing the solution through a slurried bed of a sulphate salt.  The sulphate salt in the bed may be the same salt as the inorganic sulphate in the solution, while the sulphate in solution may have the same cation as the thiocyanate, e.g. sodium.  The thiocyanate solution may be at an elevated temperature, e.g. 41 DEG C., and after passing through the bed may be passed through a zone of minimum turbulence, so as to settle entrained solid sulphate, and filtered or centrifuged to free it of solid.  The thiocyanate solution may have been concentrated, to produce a supersaturated solution, before treatment and may be diluted afterwards.  An apparatus for the continuous removal of sodium sulphate from a sodium thiocyanate solution containing it at supersaturation level has a port 8 for the introduction of sulphate salt into tank 1 while the supersaturated solution is continuously introduced through inlet 9. Rotating shaft 5 mixes by distributer disc 10 and flat scraper 11 prevents blocking of inlet 9 by sulphate.  Baffles 12 above the mixing bed reduce the flow of liquid after it has passed through the bed while treated solution passes through slots 13 disposed in a ring around the vessel and enclosed by an annular overflow channel 14, from which the solution drains continuously via outlet pipe 15. Specifications 796,294, 824,361 and 864,096 are referred to.ALSO:Spent thiocyanate solution from acrylonitrile polymerization supersaturated in an inorganic sulphate is treated to reduce the sulphate ion content by passing the solution through a slurried bed of a sulphate salt.  The sulphate in solution may have the same cation as the thiocyanate, and the sulphate in the main bed may be the same salt as the inorganic sulphate in supersaturated solution. Sodium sulphate is specified while the thiocyanate solution may be at an elevated temperature.  Specifications 796,294, 824,361 and 864,096 are referred to.
Patent GB-1064526-A (GB)
Title: Composition and process for treating exhaust gases using same
IPC: B01J21/00
Filed: 1964-09-03
Abstract: Exhaust gas oxidation catalysts comprise a major amount of an oxidation catalyst and a minor amount of an inorganic non-metallic material capable of expanding and becoming resilient e.g. V, Pt, Pd, Rh, Cu, Ag, Cr, Mn, Fe or oxides thereof supported on Al2O3, BeO, ThO2, MgO, ZrO2, or SiO2.  Preferred supports are vehmiculite, Fibenfrax, and silica stabilised Al2O3.
Patent GB-511034-A (GB)
Title: Improvements in and relating to electric acoustic devices
IPC: H04R1/22
Filed: 1937-12-31
Abstract: 511,034. Microphones. HOULGATE, H. J., WHEELER, G. C., and FOUNTAIN, Ltd., G. R. Dec. 31, 1937, No. 36182. [Class 40 (iv)] In an electrodynamic microphone comprising a diaphragm 1 carrying a coil located in a magnetic field provided by an annular polepiece 8 and a centre polepiece 7 energized by a magnet 16 forming a closed chamber 13 behind the annular polepiece, a plurality of openings 9, 10 provided in the polepieces 7, 8 respectively communicate with the closed chamber through a quantity of acoustic resistance material which covers the inner ends of the openings. The resistance material is preferably in the form of rings 14, 15 of felt, and the chamber 13 may be wholly or partially filled with cotton wool or similar material. The diaphragm which is formed with a domed central portion and a number of annular corrugations 2 is preferably made of cellulose acetate. The central portion may be made of thicker material than the annular portion. The output of the microphone may be applied to an electric filter arranged to provide additional damping of the output at the resonant frequency of the vibrating system and the associated air chamber, and to this end the output transformer is preferably provided with additional windings having a predetermined leakage inductance with regard to the main winding and a tuning capacity across the additional winding.
Patent GB-1479462-A (GB)
Title: Photoresist composition
IPC: G03F7/004
Filed: 1974-08-16
Abstract: 1479462 Photo-resist materials HITACHI Ltd 16 Aug 1974 [24 Oct 1973] 36219/74 Heading G2C A photo-resist composition comprises a watersoluble polymer, a bis-aziole photocross-linking agent, and a water-soluble aliphatic alcohol having 4-6 carbon atoms and 4-6 hydroxyl groups. Specified polymers are acrylic and vinyl polymers and copolymers and gelatine and specified alcohols are erythritols, pestritols such as arabitol or xylitol, and hexitols such as sorbitol, dulcitol and mannitol. The photo-resist may contain a silane to improve adhesion to the support.
Patent GB-1068545-A (GB)
Title: Process for treating beryllium
IPC: C22B35/00
Filed: 1964-09-04
Abstract: Beryllium powder is given a reduced halogen content and a spheroidal form by passing it through a vertical furnace maintained at 1500-1800 DEG C. and containing an inert gas e.g. argon at 0.1 to 0.9 atmosphere.
Patent GB-1433418-A (GB)
Title: Thermostat
IPC: G01K5/62
Filed: 1973-07-31
Abstract: 1433418 Thermal switches INTER CONTROL HERMANN KOHLER ELEKTRIK GmbH & CO KG 31 July 1973 [1 Aug 1972] 36463/73 Heading H1N By rotating housing part 7 relative to housing part 1, the distance between the snap acting bimetallic temperature sensor 9 and contact system 2, 3, 6 is varied so that the operation of the contacts occurs during the snap action stroke. Sensor 9 raises bridging contact 6 against the action of spring 11 through insulating member 10. Contact 6 bridges the ends of L-shaped fixed contacts 2, 3. Cam surfaces 12, 13 vary the distance as part 7 is rotated. When the casing parts are set, the top end of cap 8 is crimped over to fix the axial distance and a portion of cap 8 is deformed into recess 14 in part 7 to prevent further rotation of part 7. In a second embodiment, Fig. 4 (not shown) the surfaces 12, 13 have a plurality of wedgeshaped parts to form the camming surfaces.
Patent GB-1152049-A (GB)
Title: Process for preparing Acrylic Acid and Catalysts therefor
IPC: C07C51/25
Filed: 1966-08-16
Abstract: 1,152,049. Acrylic acid. EASTMAN KODAK CO. 16 Aug., 1966 [24 Aug., 1965], No. 36579/66. Heading C2C. Propylene is oxidized to acrylic acid in the vapour phase at 300-500‹ C. in the presence of a catalyst containing an oxide of Mo and at least one oxide of Nb and/or Ta. The propylene feed may contain saturated hydrocarbons, e.g. propane of ethane or other inert gases, e.g. nitrogen, argon, neon, flue gas, steam or carbon dioxide. The reaction may be effected in a fixed or fluidized bed. The catalysts may additionally contain As 2 O 3  or As 2 O 5  and may be supported on SiO 2 , TiO 2 , SiO 2 -Al 2 O 3  or SiC. Acetic acid and acrolein are by-products.
Patent GB-320281-A (GB)
Title: Improvements in and relating to wardrobes and the like
IPC: A47B47/04
Filed: 1928-12-12
Abstract: 320,281. Lawrence & Co., Ltd., W., Massey, L., and Whomsley, J. T. Dec. 12, 1928. Wardrobes.-The body of a wardrobe is built up of panels mounted on vertical stiles terminating in steady pins which enter sockets in the top and base of the wardrobe, so that it can be readily dismounted. The front and back may be formed of plywood panels 6 and the sides of sheets 7 of non-laminated wood attached to the stiles 1. The back is made in two parts to one of which the stile 1<a> is attached, fitting over the edge of the other part, so that the body can be taken asunder. The stiles 1, 1<a> terminate in pins 11, the lower pins passing through holes in a frame 2 carrying the floor of the wardrobe into sockets in the base 13. The upper pins fit into sockets in a frame 3 carrying a moulding 4 and top 10. The door may be hung on pins 12 fitting into sockets in the frames 2, 3.
Patent GB-910993-A (GB)
Title: Control systems for induction motors
IPC: H02K17/40
Filed: 1960-10-26
Abstract: 910,993. Control of A.C. motors. SHIBATA, F. Oct. 26, 1960, No. 36672/60. Drawings to Specification. Class 38 (3). A wound rotor induction motor is associated with an auxiliary D.C. machine which is supplied with rectified current from the secondary circuit of the main motor through an induction regulator for adjusting the power supplied to the auxiliary machine. The rotor of the auxiliary machine may be coupled mechanically with that of the main motor, or it may be coupled with a synchronous or induction generator. A change-over switch controls the insertion or removal of the induction regulator from the secondary circuit.
Patent GB-1143993-A (GB)
Title: Improvements in or relating to alkali metal catalysts
Inventor: HAMBLING JAMES KEITH
IPC: C07C2/24
Filed: 1966-08-17
Abstract: 1143993 Oligomerization catalysts BRITISH PETROLEUM CO Ltd 9 Oct 1967 [17 Aug 1966] 36792/66 Addition to 1066113 Heading B1E The process of the parent Specification for pretreating a catalyst comprising a dispersion of metallic sodium on an anhydrous potassium compound by subjecting the catalyst before use to treatment with hydrogen at 50-350‹ C. is modified in that while the metallic sodium is being dispersed on the anhydrous potassium compound it is simultaneously exposed to hydrogen. In an example K 2  CO 3  is dried in vacuo at 200‹ C., the vacuum is released with hydrogen and sodium is dispersed thereon at 200‹ C. The catalyst contained 4À39% Na as NaH.
Patent GB-1019144-A (GB)
Title: Improved apparatus for twisting or doubling textile yarns and analogous filamentary material
IPC: D01H1/00
Filed: 1962-10-01
Abstract: 1,019,144. Stranding machine. R. LIPSCOMB. Sept. 30,1963 [Oct. 1, 1962], No. 37186/62. Heading D1T.  A creel 16 is carried by a hollow spindle comprising two parts 10, 11 interconnected by a flexible coupling 13. The yarn 19 from the packages 18 pass up the hollow spindle to yarn take up means and are stranded together when the creel is revolved by driving the shaft part 11. The flexible coupling 13 allows the creel 16 to rotate about its centre of gravity. The apparatus may be inverted or disposed angularly. In a modified form the package pegs 17 project from the base of the creel. In a further modification the packages are co-axial with the spindle parts 10,11, either below or within the spindle.
Patent GB-630214-A (GB)
Title: Television system
IPC: H04N5/232
Filed: 1946-12-17
Abstract: 630,214. Television. EDWARDS, B. J., LAWSON, D. I., COPE, J. E., GERMANY, L. W., and PYE, Ltd. Dec. 17, 1946, No. 37196. [Class 40 (iii)] A view finder for television cameras comprises a monitor cathode-ray tube for reproducing the picture originating in the television camera, an optical view finder covering afield of view greater than the field of view to be televised and means for superimposing the picture reproduced by the monitor tube upon the picture reproduced by the optical view finder so that the operator sees the former picture surrounded by the scene immediately surrounding the field of view being televised. The view finder, which is carried in a casing 4, is provided with a monitor cathode ray-tube 10 the screen of which is viewed through the eye-piece 5 by reflection at a mirror surface 9 arranged at 45 degrees to the axis of the eyepiece and carried by a transparent glass plate 8 so that the complete scene viewed through the eye-piece comprises the monitor tube picture surrounded by the direct field of view as seen through the lens 7 which, with the eye-piece, forms a direct optical view finder having a field of view greater than that of the television camera. When the distance from the camera of the object being televised is comparable with the distance between the camera and the view finder registration errors due to parallax will occur.
Patent GB-1177045-A (GB)
Title: Electrically-Powered Locomotives for Toy and Model Railways
Inventor: ERNST MAX
IPC: A63H19/12
Filed: 1968-08-05
Abstract: 1,177,045. Toy locomotive. M. ERNST. 5 Aug., 1968 [12 Aug., 1967], No. 37209/68. Heading A6S. A locomotive for a toy railway includes an electric motor 3 and a printed circuit board 2, the motor brushes 8, 9 extending from the underside of said board and passing through aperture 23 in the motor housing to contact the armature 30. The board 2 is releasably attached to the locomotive body 1 by a screw which serves as an earth connection. The motor 3 is arranged longitudinally beneath the board and is secured thereto by a lug (13) on the housing. Resilient devices 11 riveted to the circuit board are provided to bear upon the upper ends of the brushes 8, 9. A changeover switch 12, for selective connection of the motor to a pantograph bow or rod current collectors, consists of a U-shaped contact piece 35 guided in arcuate slot 37. Ferrite cores 25, 26 and/or capacitor 22 are provided as suppressors. The board 2 has conducting tabs 7 for lamps at each end of the locomotive which are supplied through rectifiers 28, 29 and thus selectively light up, depending on the direction of travel.
Patent GB-799713-A (GB)
Title: Improvements in or relating to wrappers and means for facilitating the opening thereof
IPC: B65D75/66
Filed: 1955-12-30
Abstract: 799,713. Packages. FROMAGERIES BEL LA VACHE QUI RIT. Dec. 30,1955 [Feb. 16, 1955], No. 37511/55. Class 94(1). A wrapper comprises a portion 2 rendered thicker than the remainder by being of heavier material or having a label attached &c., a lug 5 being secured to the portion 2 to facilitate its being removed integrally. Removal of the portion 2 may, in the case of the wrapped cheese illustrated, raise the margin 3 of the remainder of the wrapper 1. An attachment to a known wrapping machine for securing the lugs to the portions 2 comprises means to feed continuous strips 9 (only one shown) from opposite sides over the web 6 from which the portions 2 are cut. A heat sealer 12 and knife 11 on a vertically reciprocating head 8 cut the lugs 5 from the strip and secure them at 4 to the web. Vertically and horizontally reciprocating folders 15, 16 respectively double the protruding portions of the lugs onto the web about a folder blade 14. The apparatus is duplicated for the other strip 9 being fed to the web from the opposite side. Reference has been directed by the Comptroller to Specification 763,137.
Patent GB-801781-A (GB)
Title: Improvements in or relating to electronic pulse delay circuits
Inventor: WILLIAMS NIGEL ARTHUR FREDERIC
IPC: H03K5/05
Filed: 1954-12-30
Abstract: 801,781. Pulse delaying circuits. BRITISH TABULATING MACHINE CO., Ltd. Dec. 30, 1954, No. 37655/54. Class 40 (6). A pulse delaying circuit comprises a coincidence circuit associated with an electric discharge tube which is normally conducting so that when a positive input pulse and a clock pulse are applied simultaneously the tube is rendered non-conducting and then conducts again after a predetermined period to produce a delayed output pulse across its anode load. Figs. 1 and 2 show a pulse delaying circuit in which if an input pulse train, Fig. 2 (a), to be delayed is applied at input 1 and a clock pulse train, Fig. 2 (g), to input 2 when pulses in the two trains coincide both diodes 3 and 4 are cutoff and positive pulses, Fig. 2 (d), appear at the junction of diodes 3, 4. These are differentiated by capacitor 5 and the low grid/cathode impedance of tube VI so that at the negative trailing edges VI is cut-off capacitor 5 re-charging slowly through resistor 6 until when a positive re-set pulse, Fig. 2 (c), appears at reset input 10 it recharges rapidly through diode 8. Thus the grid voltage of tube VI, as shown in Fig. 2 (e), is amplified in tube VI, squared by the clamping action of diodes 13, 14 and appears at the grid of V2, Fig. 2 (f), as a train of rectangular pulses which is a replica of the input pulse train, Fig. 2 (a), delayed by one clock pulse period. The voltage at the grid of V2 is amplified in tube V2 which produces an output at its cathode, or a pulse train of opposite polarity may be produced across an anode load, not shown. Capacitor 18 and resistor 17 may be such as to prevent a short pulse at the grid of tube V2 which appears between two longer pulses from being produced at the output, Fig. 2 (g).
Patent GB-1388807-A (GB)
Title: Method of simultaneously producing phthalic anhydride and  anthraquinone
IPC: C07C51/265
Filed: 1973-08-09
Abstract: 1388807 Simultaneous production of phthalic anhydride and anthraquinone VOSTOCHY NAUCHNO - ISSLEDOVATELSKY UGLEKHIMICHESKY INSTITUT 9 Aug 1973 37766/73 Heading C2C A method of simultaneous production of phthalic anhydride and anthraquinone comprises the vapour phase oxidation of a stock material which is a mixture of anthracene and naphthalene, by an oxygen containing gas in a stationary bed of a vanadium catalyst. The preferred catalyst is selected from compounds of vanadium and sulphates of alkali metals on a carrier, e.g. vanadium-potassium-sulphate-silica gel.
Patent GB-812912-A (GB)
Title: Enclosure pressure control mechanism
Inventor: SMITH FRANK ROY
IPC: B63C11/22
Filed: 1954-12-31
Abstract: 812,912. Fluid-pressure servomotor control systems. NORMALAIR Ltd. Dec. 9, 1955 [Dec. 31, 1954], No. 37833/54. Class 135. Mechanism for controlling the pressure in a pressurized enclosure such as an aircraft cabin comprises a discharge valve d subject to the control of a pressure control apparatus a which has a direct connection through a pipe b and a restriction (not shown) with the pressure source, the valve d having a connection through a bell-crank lever n pivoted at o with a high pressure or demand valve i also connected to the pressure source. The enclosure or cabin pressure enters the housing of the apparatus at h and acts on the exterior of a bellows k secured to the valve d and also in the interior of a bellows g by way of apertures m in the valve i so that the latter is balanced. The apparatus is suitable for use with cabin pressurizing systems in which the pressurizing air is derived from the discharge from other apparatus such as a pilot's pressurized suit &c. If the flow of compressed air to the cabin is adequate to maintain the pressure called for by the apparatus a, the bellows k will be compressed by the cabin pressure and the valve d will open as necessary to limit the pressure in the cabin, but in the event of the flow to the cabin being insufficient the valve D closes and the bell-crank lever n is operated by the bellows k to open the demand valve i to admit air under pressure directly to the cabin. The apparatus is also provided with a hinged, inwardly-opening release valve e and an outwardly opening safety valve f. The demand valve i may, alternatively, be servooperated or remotely controlled by electrical, pneumatic, hydraulic or mechanical means and may be of the tilting, spring-operated, or pistonoperated type. Also, the apparatus a may form part of the discharge valve unit.
Patent GB-506157-A (GB)
Title: Improved device for the regulation of rotary liquid meters
IPC: G01F1/08
Filed: 1938-12-30
Abstract: 506,157. Rotary meters. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ. Dec. 30, 1938, No. 37899. Convention date, Jan. 19. [Class 110 (ii)] The sizes of the inlet and outlet ports of a rotary meter are controlled by a movable member which increases or decreases the port areas, symmetrically and simultaneously. A member 4 is movable, as by the insertion of a screw-driver in a slot 6, to raise or lower the member and thus control the sizes of the inlet and outlet ports 2, 2<1>. A slide, actuated by rack-and-pinion mechanism, may be used to control one port, a cylinder attached to it moving over the other port. More than one inlet and one outlet may be simultaneously controlled.
Patent GB-1451513-A (GB)
Title: Apparatus for feeding ornamental fish
IPC: A01K61/85
Filed: 1974-08-30
Abstract: 1451513 Fish feed dispenser U BAENSCH 30 Aug 1974 37989/74 Heading A1A A fish feeder which is actuated by the fish comprises a lever 4 having imitation food 7 and which when displaced by a fish causes contacts 8, 9 to close and actuate an electromagnet 10 whose armature pulls valve rod 13 such that a rod aperture 15 is disposed beneath a food hopper 12. Current is supplied from a battery 11. The whole device is mounted on an aquarium by U-shaped bracket 3.
Patent GB-941694-A (GB)
Title: Stable solutions of narcotically-active phenoxyacetic acid amides
IPC: A61K47/44
Filed: 1962-10-09
Abstract: Stable, aqueous solutions, suitable for intravenous injection, comprise a narcotically-active, substituted phenoxyacetic acid amide and a water-soluble, non-ionic, surface-active material. Amides specified are 2-methoxy- and 2 - ethoxy - 4 - allyl - phenoxyacetic acid - N,N - diethylamide, 2 - methoxy - 4 - n - propyl - phenoxy - acetic acid - N,N - diethylamide, 2 - methoxy - 4 - propenyl - phenoxyacetic acid - N,N - diethylamide, 2 - ethoxy - 4 - (11 - hydroxy - n - propyl) - phenoxyacetic acid - N,N - diethylamide, 2 - ethoxy - 4 - acetyl - phenoxyacetic acid - N,N - diethylamide, 2 - methoxy - 4 - (D 11 - buten - 31 - onyl) - phenoxyacetic acid - N,N - diethylamide, 3 - methoxy - 4 - (N,N - diethyl - carbamoyl - methoxy) - phenylacetic acid ethyl, n-propyl and allyl esters, 3-methoxy-4 - (N,N - diethylcarbamoyl - methoxy) - benzoic acid ethyl and n-propyl esters, and 2-methoxy - 4 - allyl - phenoxyacetic acid N - ethyl-N-ethoxy-amide.  The surface-active material may be a saccharose ester, or an ethylene oxide derivative of a fatty acid, fatty alcohol, fatty oil or sorbitan fatty acid ester; those exemplified are ethoxylated castor oil, oleyl polyglycol ether, polyethylene oxide, sorbitan monooleate, polyhydroxyethylene stearate and saccharose monolaurate.