baber/WOPTO huggingface dataset:
Patent GB-247806-A (GB)
Title: Improvements in steam fitting for journals of rotary steam cylinders
IPC: F16L39/04
Filed: 1925-05-25
Abstract: 247,806. Aldrich, A., and Berry, E. E. May 25, 1925. Stuffing-boxes, substitutes for.-A steam-tight joint is maintained between the trunnion of a rotary steam-heated cylinder and the housings 12 to which the steam-pipe 13 is connected by a bellows-like member 11 which presses the packing-ring 9 of carbon and graphite against a member 7 secured to the end of the trunnion. The surfaces in contact with the ring are recessed so as to prevent the formation of a film of water therebetween and consequent leakage of steam. Specification 246,709 is referred to.
Patent GB-632713-A (GB)
Title: Improvements in or relating to nozzles with cut-off devices
IPC: B05B15/74
Filed: 1947-05-21
Abstract: 632,713. Spray-producers. BURNAM, T. W., and RAMSAY, G. D. May 21, 1947, No. 13692. Convention date, Oct. 19, 1945. [Class 69 (iii)] A nozzle, more particularly for fire sprinkler systems, comprises two relatively movable parts 2, 5, held in closed position together by a spring 9. On application of fluid under pressure via the threaded portion 1 the lower half 5 is forced downwards and the cover 15 is forced away as shown in Fig. 2. Jets 4, 4a and 13 are uncovered and converge on one another to form a fine spray or fog; similarly a lower set of jets 14 impinge on one another. When the fluid pressure is cut off the nozzle closes to the position shown in Fig. 1 covering all the nozzle jets against ingress of dirt and foreign matter liable to clog the jets and render the nozzle inoperative. Various modifications and arrangements are described.
Patent GB-114971-A (GB)
Title: An Improved System of Carbonising Coal.
Inventor: YEADON JOHN ARTHUR
IPC: C10B1/04
Filed: 1917-09-24
Abstract: 114,971. Yeadon, J. A., and Whitaker, T. Sept. 24, 1917. Drawings to Specification. Materials for making gas and other products.- Coal, lignite, cannel, shale, peat, &c., are carbonized by passing the material, finely ground, through a retort.
Patent GB-266182-A (GB)
Title: Improvements in or relating to methods of and apparatus for forming sheet glass
IPC: C03B13/04
Filed: 1926-05-31
Abstract: 266,182. Jackson, L. Mellersh-, (Hartford-Empire Co.). May 31, 1926. Rolling.-A method of forming sheet glass in a continuous strip consists in directing a stream of molten glass against an upwardly moving surface on which it spreads out laterally, under the action of gravity, and forms a layer of substantially equal thickness to that of the finished sheet. The stream of glass flows from a spout 5 on to the surface of a roller 8, and is carried beneath another roller 9 by which it is formed into a continuous sheet 10. The flow of glass to the spout is controlled by a gate 7 having its lower edge rounded. The roll 8 is so mounted that the stream of glass is carried upwards to the roll 9, and spreads out laterally in the space between the spout and the roll.
Patent GB-958986-A (GB)
Title: Method of locating the free surface of a liquid contained in a tank, and device for the practical application of the method
Inventor: BOISSIER JACQUES
IPC: G01F23/24
Filed: 1962-04-10
Abstract: 958,986. Determining liquid level. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 10, 1962 [April 28,1961], No. 13868/62. Heading G1N. A method of locating the surface of a liquid in a tank consists in placing at least two conductive probes 1-14 at different heights inside the tank, and in comparing the electrical resistance existing between the tank wall and each of two of the probes. Commonly driven stepping switches 15, 16 provide for comparing for two adjacent electrodes the resistances between each electrode and the tank, the electrodes being connected each to a strapped pair of contacts on the stepping switches, and the straps on the two switches being displaced with respect to each other to provide for progressive testing up or down the tank. The switches are driven by a motor M which is controlled by the contacts of relays R1, R2, the former of which controls the direction of rotation, and the latter of which opens the motor circuit when the surface of the liquid is between the two electrodes connected for testing by the stepping switches. The liquid level is indicated by the switch position. In the home position the probe resistance is compared with that of a resistor 22 to initiate the hunt for the surface. Relay and motor fail alarms are included; and manual operation of the switches to determine the level is described.
Patent GB-750969-A (GB)
Title: Improvements in or relating to pigment dyestuffs of the anthraquinone series
IPC: C09B1/54
Filed: 1954-05-12
Abstract: The invention comprises pigment dyes of the formula:-<FORM:0750969/IV(c)/1> wherein R is unsubstituted or substituted alkyl, aralkyl, or aryl and X is the radical of an aromatic carboxylic acid.  R is preferably alkyl of 1-8 carbon atoms, phenyl, or benzyl, and X is preferably benzoyl.  They are prepared from the 1.4-diamino bodies by monoacylation of by diacylation followed by partial saponification, with concentrated sulphuric acid, followed by working up into pigment dyestuff form by the usual mechanical process if desired, with incorporation of a dispersing agent.  In examples, (1) 1, 4-diamino-2-ethoxy-anthraquinone is diacylated with p-toluic acid chloride in chlorobenzene, and the product partially saponified with sulphuric acid: (2) 1, 4-diamino-2-methoxy anthraquinone is similarly diacylated with benzoyl chloride and partially saponified; (3) 1, 4-diamino-2-methoxy-anthraquinone is monoacylated with benzoyl chloride; (4) 1, 4-diamino-2-butoxy-anthraquinone is diacylated with m- or o-chlorbenzoyl chloride, followed by partial saponification with sulphuric acid; (5) 1, 4-diamino-2-methoxy anthraquinone is diacylated with pyrene-3-carboxylic acid chloride, followed by partial saponification with sulphuric acid. A list of additional starting materials is given.  Examples are given of the use of the products in colouring paper, in colouring regenerated cellulose fibres in the spinning mass, and in printing textiles.
Patent GB-808374-A (GB)
Title: Improvements in or relating to articles having sliding doors
Inventor: CLARK THOMAS CRAVEN
IPC: E06B3/46
Filed: 1955-05-16
Abstract: 808,374. Sliding doors. LEBUS Ltd., H. Jan. 30, 1956 [May 16, 1955], No. 14096/55. Class 20(3) [Also in Group XIV] Sliding doors 11, 12 for closing an opening 14 in a wooden cabinet 13 each have centrally disposed vertical pivot pins 15, 15, or 16, 16 respectively which slidably engage in guide channels 17 formed respectively in the underneath and upper sides of the top, and bottom members 18, 19 of the cabinet bounding the door opening 14, each channel 17 having a straight portion 24 spaced inwardly of, and parallel to, the door opening and inclined end portions 22 so that, a door, before being slid open behind the other door, can be initially moved from its closed position by a rocking action which enables sliding to commence. Each door, provided with a handle 27, is radiused, or chamfered, on the inside edge 26, the inner side of the upper channel 17 being provided with a guide rail 28 which limits the inner rocking movement of the doors. Each door is held closed by a ball-catch 29, a stop 30 being provided inward of the catch to prevent reverse swinging of the door by over riding the catch 29.
Patent GB-814786-A (GB)
Title: Improvements in freewheel couplings
IPC: F16D41/07
Filed: 1957-05-03
Abstract: 814,786. Freewheel clutches. MAURER, A. May 3, 1957 [June 1, 1956], No. 14190/57. Class 80 (2). In a freewheel coupling having tilting wedging pieces urged into contact with the outer race by a tubular spring, the contact surfaces 7, 9 of each wedging piece with adjacent wedging pieces, and the contact surface 5 with the outer race are formed as cylindrical surfaces having a common centre of curvature 11 and the same radius 6. The radius 13 of the surface contacting the inner race is greater than the radius of the other surfaces. The centre of gravity of the wedging piece lies on the same line 11 as the common radii of curvature.
Patent GB-334569-A (GB)
Title: Improvements relating to filters
IPC: B01D29/11
Filed: 1929-05-07
Abstract: 334,569. Pickard, J. A., and Rogers, F. May 7, 1929. Filters comprising grids or gratings; filters with loose filtering-materials. - The elements of an edge filter are formed as discs 1 with central apertures 3 and isolated spacing protuberances 2 pressed-up on both faces of the element The protuberances are preferably arranged as a circular group, those on one face alternating with those on the other. Elements as described are preferably arranged to alternate with plain discs 5, as shown in Fig. 2. The elements may be tapered outwards, so that wedge-shaped spaces are formed in which a filter aid is effectively retained. Fig. 3 shows an arrangement in which saucer-shaped elements are used, and Fig. 4 one with conical elements.
Patent GB-1189084-A (GB)
Title: Manufacture of Tetrahydrobipyridyls
Inventor: COLCHESTER JOHN EDWARD
IPC: C07D211/82
Filed: 1968-03-25
Abstract: 1,189,084. Tetrahydrobipyridyls. IMPERIAL CHEMICAL INDUSTRIES Ltd. 25 Feb., 1969 [25 March, 1968], No. 14272/68. Heading C2C. [Also in Division C7] 1,1<SP>1</SP> - Di-(alkoxycarbonyl) - 1,1<SP>1</SP>,4,4<SP>1</SP> - tetrahydro-4,4<SP>1</SP>-bipyridyls are produced by reacting pyridine or an alkylpyridine with an alkyl haloformate to form the corresponding quaternary pyridinium halide and reducing this salt to give the required tetrahydrobipyridyl. The alkylhaloformates referred to do not include alkylfluoroformates. The alkylhaloformate and pyridine (or alkyl pyridine) are preferably reacted in solution, e.g. in an ether, ketone, hydrocarbon, halogenated hydrocarbon, amide, sulphoxide or nitrile at a temperature from -10‹ to 20‹ C. The pyridinium halide may be reduced by treatment with an alkali metal amalgam, particularly sodium amalgam, or electrolytically at the cathode of an electrolysis cell. The tetrahydrobipyridyls may be quaternated to give the 1, 1<SP>1</SP>-disubstituted 4,41-bipyridylium salts or oxidized with air to give the corresponding bipyridyls.
Patent GB-417402-A (GB)
Title: Means for regulating the continuous voltage furnished by rectifiers of the mercury vapour type
IPC: H02M7/15
Filed: 1933-05-17
Abstract: 417,402. Rectifying alternating current. FORGES ET ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE JEUMONT, 75, Boulevard Haussmann, Paris. May 17, 1933, No. 14288. Convention date, May 27, 1932. [Class 38 (ii).] Relates to the grid control of a rectifier R, Fig. 7, to give a predetermined D.C. load characteristic, and consists in applying to the grids G a control potential comprising an A.C. component superimposed on a D.C. component obtained from a generator having field windings a1, a2 acting in opposition, one of these windings being supplied from a battery e, the other being connected in the D.C. load circuit. Fig. 6 shows the voltage Ugc of the generator plotted to a base of load current Icn. By a suitable adjustment of the turns ratio of the windings a1, a2 and of the saturation of the magnetic circuit of the generator, various characteristics represented by the curves shown can be obtained. The curve aib represents the generator characteristic necessary for the rectifier to give a constant output voltage at all loads.
Patent GB-735706-A (GB)
Title: Improvements in or relating to the purification of aromatic hydrocarbons
Inventor: DENSHAM ALEC BRAMLEY
IPC: C07C7/163
Filed: 1952-06-06
Abstract: Aromatic hydrocarbons are purified by passing in vapour phase together with a hydrogen-containing gas at atmospheric pressure or slightly above and at a temperature of between 350 DEG  and 550 DEG C. over a platinum catalyst prepared by the reduction of platinum oxide under a liquid (see Group III).  The hydrogen-containing gas may be town's gas or water gas.  In examples the sulphur content of naphthalene and crude benzol is reduced; phenols are also removed from naphthalene; the naphthalene may first be washed with a detergent as described in Specification 694,327. Reference is also made to the treatment of benzene, toluene, and xylene.  When the catalyst loses activity, it may be revivified by heating first in air diluted with inert gas and then in air alone at 650 DEG  C. Specification 438,354 also is referred to.ALSO:Platinum catalyst for use in the purification of aromatic hydrocarbons (see Group IV (b)) is obtained by the reduction of platinum oxide under a liquid.  The catalyst may be prepared (a) by spraying an inert carrier with an aqueous solution of chloroplatinic acid, converting the acid to platinum oxide (e.g. by mixing with fused sodium nitrate and washing the melt with water and dilute nitric acid), reducing the oxide to metal by refluxing with a liquid, e.g. alcohol, in the presence of hydrogen, distilling off the liquid in an inert atmosphere, and washing and drying the product; or (b) by spraying an inert carrier with an aqueous solution of aluminium nitrate and chloroplatinic acid, drying, treating the coated carrier with fused sodium nitrate to form alumina and platinum oxide, and then reducing the platinum oxide as in (a).  The platinum oxide may also be prepared by heating platinum in oxygen under pressure or by treating platinic chloride with alkali followed by acetic acid.  Suitable carriers are activated alumina, china clay, and "Alundum" (Registered Trade Mark).  The catalyst may contain 1-10 per cent of platinum and may be revivified by heating first in air diluted with inert gas and then in air alone at 650 DEG  C.
Patent GB-591996-A (GB)
Title: Improvements in or relating to heat-transfer devices such as cooling fins
IPC: H01J7/24
Filed: 1944-07-27
Abstract: 591,996. Tubular heat-exchange elements. PHILLIPS, R. B., and WRIGHT, C. S. July 27, 1944, No. 14401. [Class 64 (iii)] [Also in Group XL] Trapezoidal cooling fins 9 are bolted together so as to form a solid wedge-shaped body 16, the bottom surface of which is smooth, so that it may be soldered directly to the surface to be cooled, e.g., the end cap 2 of an electron 'discharge tube.
Patent GB-1373563-A (GB)
Title: Dental adhesive preparation
IPC: A61K6/00
Filed: 1973-03-26
Abstract: 1388515 Adhesive compositions WARNERLAMBERT CO 26 March 1973 [13 April 1972] 39424/73 Divided out of 1373563 Headings C3F and C3U A dental adhesive comprises a substantially anhydrous mixture of (i) from 1À0% to 80% by weight of at least one cationic polymeric material selected from O-alkyl-trimethylammonium chloride-substituted anhydroglucose polymers, the alkyl radical containing up to 7 carbon atoms, and (ii) from 20 to 99% of at least one anionic gum selected from; gum Karga, gum arabic, gum Shiraz, gum tragacanth, pectin, pectinates, algin, alginates, carboxymethyl cellulose gum, cellulose sulphate gum and synthetic gum copolymers of maleic anhydride with a vinyl-alkyl-ether containing up to 5 carbon atoms in the alkyl radical. In the example gum arabic is used together with O-ethyltrimethylammonium chloride-substituted anhydroglucose. Anvil oil is also added to give a paste.
Patent GB-198689-A (GB)
Title: Improvements relating to calendars
IPC: G09D3/08
Filed: 1923-06-01
Abstract: 198,689. Hengstler & Co., H. June 3, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Date indicators; calendars. - A daily-changed date indicator comprises a back sheet, a front sheet with apertures 1, 2, and two discs 3, 4, rotatably mounted between the sheets and carrying the date figures which are visible through the said apertures. The discs project through notches 5, 6, in the shells to facilitate turning. A small block of monthly tear-off sheets 8 may be mounted on the front sheet. Similarity of colour of the portions 7, 7<1>, of the discs with the front sheet of the calendar renders the single date figures more conspicuous.
Patent GB-1353465-A (GB)
Title: Dispensing apparatus loaded with toilet material
IPC: A47K10/44
Filed: 1970-03-25
Abstract: 1353465 Cleaning pads NATIONAL RESEARCH DEVELOPMENT CORP 19 April 1971 [25 March 1970 27 May 1970 15 Aug 1970] 14534/70 25341/70 and 39423/70 Heading A4F [Also in Division B2] Dispensing apparatus loaded with toilet material of pad or strip form comprising outer layers of liquid permeable absorbent material (such as foamed plastics, paper or non-woven material) and an inner layer of relatively impermeable material comprises a reservoir such as column 11 or roll 70 for a supply of the material, a supply tank 13 for water which may be selectively mixed with soap or detergent connected via pipe 20 to a liquid dispensing station 14, heating means for the liquid to be dispensed which means may be a coil 19 or a small heating element at the outlet  nozzle of the dispensing cylinder, a conveyor such as carrier plate 32 or belt 76 for conveying a pad past the dispensing station to an exit, and control means for repetitively operating the apparatus to provide at the exit a pad moistened on one side with heated liquid during each cycle of operation. At station 14, liquid is dispensed by spraying or by means of a brush-like water spreader. The control mechanism may be hand-operated by a lever 22 as in Fig. 2, may be coin-operated or may be electrically-operated as in Fig. 4. In Fig. 4, the motor 50 has a gear-wheel output 54 for operation of the carrier plate 32 and a pulley-wheel output 53 for operation of the liquid dispensing station via cam 23 and lever 25. The volume of liquid to be discharged can be altered by varying the position of fulcrum 26 by means of an adjustable lever 62 and the temperature of the liquid can be controlled by means of a timer or thermostat 67. In the embodiment of Fig. 5, the roll 70 of toilet material is cut into pads by means of blades 74 on rollers 73, which rollers together with those of the belt 76 are driven via gear wheels by motor output wheel 54. In Fig. 6, (not shown), the cutting blades 74 are of the rectilinearly reciprocable form.
Patent GB-1269391-A (GB)
Title: Separation of molten materials
IPC: E02D29/14
Filed: 1969-03-20
Abstract: 1,269,391. Extracting apparatus. CONZINC RIOTINTO OF AUSTRALIA Ltd. 20 March, 1969 [29 March, 1968], No. 14603/69. Heading B1Q. [Also in Division C7] Molten materials are separated in a horizontal launder-like furnace having a generally sloping hearth by introducing an extractant which forms an extract with one of the materials, causing the extract to flow in one direction in the furnace, causing the other material to flow countercurrent to the extract, and withdrawing them separately from the furnace. The process may be applied to the extraction of Ag and Au from Pb bullion by the addition of Zn; the separation of Cu and Ni in matte form by the addition of Na 2 S or Na 2 SO 4  and coke or Na 2 S and NaCI; the extraction of S and P impurities from pig iron by the addition of e.g. oxides, hydroxides or carbides of alkali or alakline earth metals; and the extraction of Sn from hardhead Fe-Sn alloy by the addition of Pb. As shown, materials to be separated are introduced into furnace 10 by way of channel 25 and extractant is introduced at 26. Mixing is effected at 22 (e.g. by impellers or lance injected gases) where hearth section 11b is flat, the remaining sections of the hearth 11a and 11c being sloping. The lighter phase, e.g. extract, flows towards the shallow end of the furnace and is collected in chamber 14 while the heavier phase flows towards the deep end and collects in chamber 15. Where some heavier phase separates in chamber 14, it may be tapped via taphole 19 and returned to the mixing zone. Similarly, lighter phase may be removed from the surface in chamber 15 and returned to the main furnace chamber.
Patent GB-143731-A (GB)
Title: Improvements in cameras for making changeable pictures
IPC: G03B15/08
Filed: 1919-06-10
Abstract: 143,731. Marks, E. C. R., (Animated Picture Products Co.). June 10, 1919. Cameras for taking a series of photographs on one plate. - In a camera for making more than one exposure on a plate by means of a movable line screen, the screen 15 is carried in the plate carrier by a sliding frame 14 and is shifted between the exposures by rods 12 which slide in fixed guides 11, parallel links 17, and a sliding bar 19 carried in fixed guides 20, 21. A sliding shutter 45 is mounted in front of the plate-carrier. To shift the screen 15, the sliding bar 19 is moved by a spring-controlled arm 24 which is positioned by one of two pairs 27, 28 of lugs. The hinged back is in two parts 36, 41. The part 36 has a projecting frame 38 which presses an inner frame 32 and surrounds the sensitive plate 34, preventing light from getting to the plate when the part 41 is opened to get at the mechanism for shifting the screen.
Patent GB-975910-A (GB)
Title: Fuel cell operation
IPC: H01M8/00
Filed: 1961-04-24
Abstract: 975,910. Fuel cells. MINE SAFETY APPLIANCES CO. April 24, 1961 [April 22, 1960], No. 14706/61. Heading H1B. In a fuel cell where the electrolyte and one electrode are in a fluid state, with the electrolyte being the densest fluid present in the cell, centrifugal force is used to keep the electrolyte interposed between the electrodes. Specifically, the cell reacts lithium and hydrogen in the presence of a fused salt eutectic. Electrolyte is injected along pipes 21, 22, 23, 24 to give a tangential component and the relevant fuel injected through nozzles 15, 16 and 9, 10. In an embodiment (not shown), the fuels are introduced without a tangential component into a gauze collector.
Patent GB-200047-A (GB)
Title: Improvements in machines for the photographic composing of letterpress and like matter
IPC: B41B25/24
Filed: 1921-12-24
Abstract: 200,047. Hunter, E. K.. Dec. 24, 1921. Enlarging, copying, and reducing; type composing.-In printers composing-apparatus of the kind comprising means controlled by a perforated strip for selectively projecting characters on to a sensitive surface, erroneous perforations in one part of the strip are corrected by means of master perforations cut in another part of the strip. The strip 9, Fig. 3, is prepared in a keyboard perforating-machine, and receives perforations 34 for character-selection, perforations 50 for word-spacing, and other perforations representing, for instance, the size and style of the characters. The perforations in the strip may be arranged on longitudinal areas a, b, c, having code-values 1, 2, 4, and each symbol is assigned a code-value equal to the sum of the code-values of the perforations representing the symbol. If erroneous perforations are made, the correct master-perforations 35 are made in part of the strip following the normal perforations. The prepared strip is passed through normal and master control-boxes 13, 12 containing electric or like devices arranged in series, so that the perforations presented in the box 13 are effective only when the master perforations are not presented in the box 12. If master perforations are presented in the box 12, the master perforations only are effective, the corresponding normal perforations 34 being suppressed. The control boxes are cut out when the normal perforations are passing through the master control-box. Specification 195,104 is referred to.