baber/WOPTO huggingface dataset:
Patent GB-711034-A (GB)
Title: Apparatus for the treatment of fluids comprising a bed of particulate material
Inventor: KELSALL DENIS FLETCHER
IPC: B01J19/08
Filed: 1950-01-04
Abstract: <PICT:0711034/III/1> <PICT:0711034/III/2> An apparatus for catalysis, absorption, ion-exchange, filtration, drying or other chemical reaction comprises a channel having inlet and outlet connections for fluid flow through the channel and a bed of particulate material in the channel between the inlet and outlet connections retained by the field of an electromagnet.  The particles may be disposed in the channel in layers of increasing particle size in the direction of flow through the channel and one or more non-magnetic constituents (e.g. filter aids) may be supported by or included with the mass.  A slurry of ferromagnetic particulate material, e.g. ferrosilicon or magnetic stainless steel, in a viscous liquid such as glycerine, is fed through a duct 9, Fig. 1, and down a non-magnetic channel 1 spanned by an electromagnet 4 which is being energized, a splitter box 12 being positioned so that a compartment 14 is opposite an outlet duct 11 to collect any discharge.  The ferromagnetic material is held in the magnetic field above a supporting grille 2 to form a filter bed 10.  The bed may be constructed in layers by feeding a sequence of slurries containing progressively smaller particles. When formed the bed is washed with water fed in through the duct 9 after which the splitter box 12 is moved across to the position shown. Liquid to be filtered is then forced up a pipe 22 from a tank 17 by passing compressed air through a pipe 21 into the tank 17, which has been filled through a pipe 18.  Filtrate passes into the compartment 13.  The filtration operation is stopped by closing the compressed air cock 20, and the bed 10 together with any filter cake is discharged by reversing and switching off the electromagnet current, the splitter box 12 being first moved across to the opposite position.  Should the current to the electromagnet coils be switched off during filtration a valve 24, normally held closed by the field due to a coil 26 in series with the magnet coils, opens to release the air pressure above the liquid in the tank 17, thus stopping flow of liquid up the pipe 22.  The movement of the splitter box 12 may also be controlled automatically by the magnet current so that a bed collapsing on failure of the current will be discharged into the appropriate compartment.  The grille 2 may consist of a non-magnetic stainless steel ring 27, Fig. 2 resting on lugs 3, Fig. 1. and combined with cross-members 28 of similar material having soft iron inserted members 29 for controlling the distribution of magnetic field across the channel.  The apertures 30 are square in plan, and have sloping side-walls 31 to aid in discharge of the filter bed. The grille may be dispensed with.
Patent GB-718386-A (GB)
Title: Catalysts for carbon monoxide hydrogenation
IPC: B01J23/78
Filed: 1952-01-03
Abstract: A catalyst (see Group III) for use in the hydrogenation of carbon monoxide to produce hydrocarbons and oxygen-containing compounds, e.g. alcohols and esters, comprises a mixture of an oxide, hydroxide or carbonate of iron precipitated from an iron salt solution in alkaline medium, and iron powder, physically, chemically or mechanically prepared, the mixture being moulded and reduced at 100-400 DEG  C.  The added iron powder preferably constitutes less than 80 per cent and not more than 50 per cent of the total iron.  If the catalyst be used for the production of hydrocarbons, the presence of up to 6 parts of alkali (or K2O) and up to 15 parts of a radical of a non-volatile acid such as a silicate, borate or phosphate per 100 parts of total iron promotes the formation of hydrocarbons boiling below 200 DEG  C., increase in alkali or silicate content promoting the formation of higher boiling hydrocarbons.  For the production of oxygen-containing compounds, 3-15 parts K2O per 100 total iron are preferred.  The catalyst is suitable for syntheses where gaseous amines or ammonia are added to the feed gas as in Specification 672,405, the alkali in such a case being introduced as a phosphate or silicate.ALSO:An iron catalyst suitable for catalytic hydrogenation of carbon monoxide is prepared by precipitating an oxide, hydroxide or carbonate of iron from an iron salt solution with an alkaline precipitant, admixing iron powder with the precipitate, moulding and/or drying the catalyst mass and reducing it at 100-400 DEG C.  The iron powder added preferably has a size of 10-250 microns and constitutes not more than 80 and preferably 25-50 per cent. of the total weight of iron in the catalyst.  Chromium manganese, titanium, tungsten or an alkali or alkaline earth metal may be contained in the added iron powder.  The precipitate may contain some of the alkali added as precipitant or an alkali may be added together with a radical of a non-volatile acid such as a silicate, borate or phosphate radical; for example, the first catalyst may contain 1-15 parts of alkali (as K2O) and 3-30 parts of the non-volatile acid radical (calculated as acidic oxide) per 100 parts of total iron. Copper and calcium salts may be present with the iron salts and precipitated therewith.  Reduction is preferably carried out between 200 and 350 DEG C., at gas velocities between 50 and 150 metres per second, using hydrogen, carbon monoxide or mixtures thereof with or without nitrogen.  The catalyst may be reduced in a bed of one metre or more thickness, either in the reactor or outside.  Specification 672,405, [Group IV (b)], is referred to.
Patent GB-626144-A (GB)
Title: An improved toasting, grilling and clothes or like drying apparatus
IPC: A47J37/06
Filed: 1947-01-06
Abstract: 626,144. Clothes airing stands. BEDWELL, E. Jan. 6, 1947, No. 378. [Class 52 (v)] [Also in Group VI] A combined toasting, grilling and clothes or towel airing stand comprises a vertical support column A bent at 90 degrees to provide a horizontally extending arm carrying a bell-mouthed socket B in which either a clothes-supporting rack or a revolving toasting or grilling hanger C can be supported as required. An additional socket D on the upright carries a double clothes supporting arm E. The upright A is adjustable by a screw P in a heavy base F. The toasting hanger has hooks M, a handle L and an adjustable collar H which rests upon an internal flange of the socket B. A pin H<SP>1</SP> limits the downward adjustment of the collar H. A hook guard is provided which clamps over the ends of the hooks M when the toaster is not in use. Specifications 109,923, 234,602 and 276,053 [all in Class 28 (i)] are referred to.
Patent GB-255725-A (GB)
Title: Improved method of and means for acidizing textile fabrics and the like
IPC: D01C5/00
Filed: 1926-01-07
Abstract: 255,725. Jahr, W. M. R. Jan. 7, 1926. No Patent granted (Sealing fee not paid). Drying materials in long lengths.-A vacuum extractor for use in apparatus for treating materials with liquids is rendered more effective by sealing the part of the slit P not covered by the fabric W by means of a rubber apron Q held at a suitable angle over the slit by an adjustable arm S. In use, the apron seals the open parts of the slit but does not interfere with the drawing of air through the fabric to dry it.
Patent GB-1344163-A (GB)
Title: Method of controlling an oxygen blown converter
IPC: C21C5/30
Filed: 1971-01-05
Abstract: 1344163 Controlling oxygen steelmaking SUMITOMO METAL INDUSTRIES Ltd 5 Jan 1971 [28 Jan 1970] 464/71 Heading C7D In a static method for controlling a convertor process, i.e. one in which the total amount of oxygen to be blown in is determined before or early in the operation and no further control action is applied, the progress of decarburisation of a number of prior heats is followed by analysis of the waste gases and calculation of certain parameters from these results, the parameters then being stored in a computor. From this data the previous charge is selected which in its characteristics most closely approximates to the charge to be controlled, and the parameters of that reference charge are applied as the basis of control. The first group of parameters is obtained by plotting the decarburisation curve for a reference charge, and fitting to it, over its final stage between a point D and the endpoint a curve of the form the values of α, # and γ then being stored. The point D is that at which dc/do = kα, where o < k < 1 and dc/do is falling. The other values to be stored for each charge are C D , the carbon content at point D, and E<SP>AD</SP> O2 , the oxygen loss ratio from the commencement of blowing to the point D.
Patent GB-1384891-A (GB)
Title: Apparatus for aligning a mask with respect to a semiconductor substrate
IPC: G03F9/00
Filed: 1972-01-05
Abstract: 1384891 Optical alignment of mask PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 5 Jan 1972 [8 Jan 1971] 511/72 Heading H4D To enable a mask 2, Fig. 1, carrying a plurality of apertures to be aligned with respect to a semi-conductor substrate 1, with respect to X, Y and rotational axes, the substrate is provided with a first set of gratings 5, 15, 17, Fig. 2, and the mask is provided with a corresponding set of three gratings 6, 16, 18, two of the gratings in each set, i.e. 5 and 15 and 6 and 16 being mutually at right angles to each other and spaced a relatively large distance from the third grating of the set 17 and 18. A reference pattern is situated at a measurement station and also comprises three gratings, two of which are close together and mutually at right angles and the third of which is spaced therefrom. The images of the mask and substrate gratings are focused upon the corresponding ones of the reference pattern. In the embodiment of Fig. 1, the images 8, 9 of gratings 5 and 6 as illuminated by a light source via a beam splitter 3 are cast by lens 7 on to the plane of a reference grating 10. Photo-detectors 11 and 12, determined by the interaction of the reference -grating 10 and the two images 8 and 9, the relative positions of the mask and substrate. Thus if the reference grating is given a velocity in the X direction of # 1  the output of photodetector 11 will be αSin# 1 t and the output of detector 12 will be bSin(# 1 t+# 1 ) where # 1  is the difference in the X direction of the positions of gratings 5 and 6. In the embodiment of Fig. 3, a plane polarized beam is split by the mask or substrate grating 30 (lines parallel to the plane of polarization), into such beams a, b, c of orders +1, 0 and -1. Beam b is blocked at 34 and beam a, after polarization rotation though 90 degrees by a #/2 plate at 45 degrees, is combined with beam c at the reference grating 32 to give two mutually polarized beams, with a phase difference dependent on the rates of the relative displacements of the gratings and the period of the gratings. These two beams combine to produce an elliptically polarized beam which is further modulated in electrooptic modulators 37, 38 with mutually orthogonal signals, to give beams which, after passing through #/4 plates 45 and 46 and analysers 41, 42 at 45 degrees to each other, give outputs from photodetectors yielding the value of the relative displacement of the gratings.
Patent GB-1013756-A (GB)
Title: Method and means for connecting and disconnecting sections of continuous-casting starter bar
IPC: B22D11/08
Filed: 1964-01-06
Abstract: 1,013,756. Continuous casting machines. UNITED STATES STEEL CORPORATION. Jan. 6, 1964 [Jan. 7, 1963], No. 588/64. Heading B3F. In a continuous casting process the starter bar 18 is formed of a number of aligned sections 18a, 18b, 18c, each having a tongue 30 at one end and a slot 26 at the other. A connector 20 is provided for engagement between two consecutive bars and has a tongue 24 and slot 28 which engage the slot 26 and tongue 30 respectively of the bar sections and is secured thereto by pins 32. The removal of the lengths of the starter bar during casting is effected by severing the connector by means of a cutting torch 10. The portions of the severed connector are subsequently detached by the removal of the pins 32.
Patent GB-264487-A (GB)
Title: Improvements in devices for measuring the speed of cars
IPC: G01P3/36
Filed: 1927-01-10
Abstract: 264,487. Waltman, J. M., and Sirks, J. F. Jan. 12, 1926, [Convention date]. Telescope systems. - Comprises devices for assisting in the determination of the speed of cars. Binocular telescopes are fitted with means, such as prisms f, for deflecting a portion of the rays entering each objective; the amounts of deflection being different. The user thus observes in each eyepiece two images of the object, laterally displaced, the displacement being proportional to the distance of the object and the angle of the prism. By proper selection of the prism angles the distance travelled by an approaching and a receding vehicle between the position in which a definite length of the vehicle, e.g. the track, equals the displacement of the images in one eyepiece, and the position in which a similar displacement is observed in the other eyepiece, is known, and when observed in conjunction with a stop watch gives a ready method of obtaining the speed of the vehicle. The prisms may be replaced by plates of Iceland spar.
Patent GB-447890-A (GB)
Title: Manufacture of dyestuffs
IPC: C09B3/56
Filed: 1935-07-08
Abstract: A tetrahalogenpyrenequinone obtained by halogenating pyrenequinone is reacted with an amine having at the nitrogen atom at least one replaceable hydrogen atom to give products which are vat-dyes for vegetable fibres such as cotton.  Condensation may be effected in the presence of a diluent such as amyl alcohol, nitrobenzene, tetrachlorethane, chlornaphthalene, benzene, trichlorbenzene, pyridine and in presence of an agent which binds acid with or without addition of a substance which promotes splitting off of hydrogen halide, for instance, copper or sulphur. In examples, various tetrahalogenpyrenequinones obtained according to Specification 443,408 or by brominating the pyrenequinone in concentrated sulphuric acid or chlorinating it in trichlorbenzene containing a little iodine or antimony pentachloride are condensed with aniline, p - anisidine, b  - naphthylamine, 2.5 - dichloraniline, o-anisidine, benzidine and 3-chlor-4-aminotoluene, and a further example is given illustrating the dyeing of cotton with one of the products.
Patent GB-1361542-A (GB)
Title: Monoazo benzthiazole basic dyes
IPC: C09B44/04
Filed: 1973-01-05
Abstract: 1361542 Monoazo benzthiazole basic dyes YORKSHIRE CHEMICALS Ltd 5 Jan 1973 [7 Jan 1972] 731/72 Heading C4P The invention comprises water-soluble basic dyes where R<SP>1</SP> is H, alkyl, aryl or aralkyl, R<SP>2</SP> is alkylene, R<SP>3</SP> is H or alkyl, R<SP>4</SP> is alkyl, R<SP>5</SP> is alkyl, aryl, cycloalkyl, aralkyl or amino, and R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> together with the nitrogen may represent a heterocyclic ring; each R<SP>6</SP> may be F, Cl, Br, or I; X is a water-solubilizing anion, and n is 1 to 4, with the proviso that when n is 1 or 2 and R<SP>6</SP> represents Cl and/or Br in the 4 and/or 6 position in the benzthiazole, then either R<SP>5</SP> represents an amino group or a cycloalkyl group or R<SP>3</SP>, R<SP>4</SP> and R<SP>5</SP> together with the nitrogen represent a heterocyclic ring; the nucleus B and the substituent groups may be further substituted, but not by carboxylic or sulphonic acid groups. The alkylene and alkyl groups may contain 1 to 4 C atoms. Exemplified anions (X-) are Cl<SP>1</SP>, Br<SP>1</SP>, ZnCl<SP>1</SP> 3 , SO<SP>11</SP> 4 , CH 3 COO<SP>1</SP>, CH 3 SO<SP>1</SP> 4  and PO<SP>111</SP> 4 . The dyes are prepared by coupling equal moles of The dyes are used to colour Tannin-mordanted cotton, cellulose acetate, and modified polyamide or polyester fibres, or polyacrylonitrile or its copolymers. Orange to violet shades are produced. On polyacrylonitrile fibres reddish shades of very good fastness are produced.
Patent GB-513577-A (GB)
Title: Improvements in and relating to bookcases and the like
IPC: A47B57/30
Filed: 1938-01-10
Abstract: 513,577. Brackets; shelf fittings. MAISON , DESOER SOC. ANON. Jan. 10, 1938, Nos. 775 and 776. Convention dates, June 1, 1937, and Nov. 4, 1937. [Class 52 (i) and 52 (v)] Shelf brackets have pins 11 engaging racks 5 in the inturned flanges of an upright channelled support and also tongues 12 which engage slots 3 in webs 2 between the said flanges. The brackets are released from the uprights by tilting about a fulcrum 13 and can be slid in the channel to a fresh position. Locking bolts 16 may be provided to limit the forward tilting and the heads 18 of these bolts fit in holes in the rear flange of the shelf 7 which slides into the brackets 8 and is retained by a spring tongue 22. The shelf may carry slidable booksupports 27 with horizontal feet 28 running in a channel in the shelf surface.
Patent GB-866690-A (GB)
Title: Improved apparatus for use in the measurement of flash point
IPC: G01N25/52
Filed: 1959-01-09
Abstract: <PICT:0866690/III/1> Flash point apparatus comprises a cylindrical metal block 29, e.g. of aluminium, containing in a screwed-in cup (at 37) a sample of an inflammable liquid through which preheated air is bubbled and from which vapour is conveyed away (via 38, 36, 39) past a platinum detector filament (at 35) which forms one arm of a Wheatstone's bridge circuit which contains a galvanometer from which the flash point is determined from the maximum meter deflection with the use of a calibration curve.  Heat is supplied to the block by means of a cartridge thermostat-controlled electric filament heater contained in and screwed into a drillway 34.  Incident air is heated as it passes along interconnecting drillways 40 and 30, before bubbling through a tube 31 in the sample.  During a determination the block is maintained at a fixed temperature indicated on a mercury thermometer provided within another drillway.
Patent GB-554026-A (GB)
Title: Improvements in or relating to the manufacture of cream centres for sweet-meats and their fondant bases
IPC: A23G3/14
Filed: 1942-01-21
Abstract: 554,026. Confectionery. CLAY, C. Jan. 21, 1942, No. 877. [Class 28 (i)] In the manufacture of fondant base and of cream centres for confectionery, the mixing, heating, cooling and further mixing of the sugar, glucose and water are all carried out in a single vacuum mixing apparatus from which the material may be delivered to a depositing hopper or to a storage vessel. The mixing vessel is preferably of the type comprising intersecting cylinders c, d with hollow beaters g, h, through which and through jackets i, a heating or cooling medium may be passed. The vessel is connected to a vacuum pump t, and to a pump m by which the material may be charged into the vessel from a kettle k through a swivel pipe o on the removable cover b of the mixing vessel, or discharged through pipes p, q to a depositing hopper r. The sugar, glucose and water are placed in the mixing vessel with the cover open and the beaters are set in motion, steam being supplied to the jacket and beaters. Cooking is continued to about 288 F. after which the cover is put on, the steam shut off and the vacuum pump operated, the beaters being at rest. The cover is removed and the beaters are again put in action, and if necessary cooling water is supplied to the jacket and beaters. The fondant may be emptied into containers for stock by tipping the mixer, or if cream centres are to be made additional syrup boiled in the kettle k may be pumped into the mixer, now again heated, and the mixture with "frappe" or flavour added may be further beaten, then cooled and discharged by the pump into the depositing hopper r.
Patent GB-283488-A (GB)
Title: Improvements in and relating to processes for the production of amalgams to be used in dentistry
IPC: C22C7/00
Filed: 1928-01-10
Abstract: 283,488. Fischer, E. W., and Virgin, E. W. J. Jan. 10, 1927, [Convention date]. Teeth, stopping.-The particles of a silver-tin alloy powder for use in making amalgam toothstoppings are given a preliminary coating of mercury so as to facilitate the final amalgamation when mixed with mercury by the dentist. The powder may be treated with a, preferably hot, solution of mercuric chloride and dilute hydrochloric acid, and then washed and dried; or may be heated with finely divided mercury and dilute acid, the mercury being obtained by boiling a solution of mercuric formate. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the treatment of tin powder and of metal and alloy powders in general. This subject-matter does not appear in the Specification as accepted.
Patent GB-553841-A (GB)
Title: Improvements in or relating to space discharge devices such as photoelectric cells
IPC: H01J40/04
Filed: 1942-01-23
Abstract: 553,841. Photo-electric cathodes. WESTERN ELECTRIC CO., Inc. Jan. 23, 1942, No. 978. Convention date, Jan. 25, 1941. [Class 39 (i)] A mica disc 16 supported from the anode 11 of a photo cell is interposed between the cathode 10 and an activating pellet 12 also carried by the anode. The silver plate cathode is first oxidized and then reduced to roughen it and afterwards is again oxidized ; the pellet contains caesium chromate, chromic oxide and powdered aluminium which when flashed will yield caesium vapour to be deposited on the tube wall whence it can be transferred to the oxidized cathode surface. The sensitizing process may be as described in Specification 503,738. Rubidium, lithium, potassium or sodium may be used instead of caesium ; the cathode may be a nickel or copper sheet with a silver surface; the surface roughening may be effected by sand blasting, acid etching, or applying by brushing a coat of silver oxide with a binder and reducing the oxide ; the mica disc is baked before mounting in the tube to remove moisture.
Patent HK-42796-A (HK)
Title: Apparatus for the reproduction of data
Inventor: GLEIM GUENTER
IPC: G11B7/09
Filed: 1996-03-14
Abstract: An arrangement for reproducing data readable by an optical scanner from tracks on a recorded medium. At least one beam of light is focused onto the medium, and the beam is positioned along the tracks by a tracking control. The recorded medium reflects the beam onto a photodetector which generates an electrical data signal having a phase relation, a focusing error signal also having a phase relation for indicating the current state of the focus control. A tracking error signal also supplied by the photodetector indicates the current state of the tracking control. A control amplifier is connected in the focus control and has an offset voltage. An offset compensation voltage is supplied to the input of the control amplifier for compensating the offset voltage of that amplifier. The offset compensation voltage is varied at the input of the control amplifier until the phase relation of the focusing error signal coincides with the phase relation of the data signal for obtaining the correct value for the offset compensation voltage.
Patent HK-52391-A (HK)
Title: (s)-alpha-ethyl-2-oxo-1-pyrrolidinacetamide
Inventor: GOBERT JEAN
IPC: C07D207/277
Filed: 1991-07-11
Abstract: (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetamide, its preparation and pharmaceutical compositions containing the same. It can be prepared either by reacting (S)-alpha-ethyl-2-oxo-1-pyrrolidineacetic acid successively with an alkyl haloformate and with ammonia, or, by cyclizing an (S)-2-amino-butanamide of the formula X-CH2CH2-NHCH (C2H5)CONH2 wherein Y is a -CH2-radical when X represents a ZOOC-radical and Y is a -CO- radical when X represents a HalCH2-radical, Z being a C1-C4 alkyl radical and Hal a halogen atom. This laevorotatory enantiomer has been found to have significantly higher protective activity against hypoxia and ischemia than the corresponding racemate.
Patent HK-59496-A (HK)
Title: Stabilized pharmaceutical compositions containing angiotens in-converting enzyme inhibitors
Inventor: HARRIS MICHAEL
IPC: A61K9/20
Filed: 1996-04-03
Abstract: The cyclization, hydrolysis, and coloration of certain ACE inhibitors is minimized when they are formulated with a metal-containing stabilizer and a saccharide.