baber/WOPTO huggingface dataset:
Patent GB-126730-A (GB)
Title: Improvements in or relating to Girders for Aeroplane and Airship Construction and other purposes.
IPC: B64C3/18
Filed: 1917-03-06
Abstract: 126,730. Vickers, Ltd., and Challenger, G. K. March 6, 1917. Framework; planes, construction of.-A girder for aeroplane wings comprises two channel shaped lattice members A B stamped from sheet metal and secured 'back to back, in contact or spaced by strips H at top and bottom ; in the latter case transverse diagonal struts F are added. The oblique ribs A<1>, B<1> or D<1>, E<1> of the members are channelled. Reference has been directed by the Comptroller to Specification 126,391.
Patent GB-555993-A (GB)
Title: Improvements in radio communication systems
IPC: H04J7/00
Filed: 1942-03-12
Abstract: 555,993. Multiplex wireless signalling. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and HOUGHTON, L. W. March 12, 1942, No. 3294. [Class 40 (v)] repetition frequency but differing in their phasing. The pulse frequency is generated at 2, Fig. 4, as a sine-wave harmonic of the source 1, which is fed to a number of phase-shifters 3 ... 7. Pulses displaced in phase are produced at the crest or trough of the waves and are modulated in amplitude by the several signals 8a ... 12a, thus producing sequences of pulses as shown in Fig. 3. The modulated pulses are combined at 13 with the wave from the source 1 and are used to modulate a carrier wave. At the receiver, Fig. 6, the carrier wave is detected at 20 and the wave originating in the source 1 is selected by a filter 21 and passed to a harmonic generator to produce the pulse frequency. This frequency is phase-displaced to the required angle by the phase-shifters 23 ... 27 from which phasedisplaced pulses are produced at 28 ... 32 and fed to amplifiers 33 ... 37. These amplifiers are thus rendered operative in turn, and are enabled to receive the appropriate parts of the mixed modulated pulses transferred to them from the detector 20. The receiver may be arranged to receive signals on one channel only, and the phase-shifter may be adjustable to select the desired channel. One of the channels may be used to send a special signal indicating that transmission is about to take place.
Patent GB-254762-A (GB)
Title: Improvements in or relating to the reduction of metal and making of alloys
IPC: C21C7/00
Filed: 1925-02-06
Abstract: 254,762. Johnson, W. Feb. 6, 1925. Alloys. - Stainless or rustless irons or steels containing for example 8-25 per cent of chromium, 0.01-2.5 per cent of carbon, 0.05-5 per cent of manganese, and 0.05-3.5 per cent of silicon, with or without other metals such as nickel, tungsten, cobalt, and molybdenum, are made by adding a reducible mixture consisting of chrome ore and aluminium, silicon, or other exothermic reducing agent, and preheated to 350-1550‹ C., to a slag on an underlying bath of metal in an open-hearth furnace, the slag containing lime to the amount of 12-20 per cent or more of the metal being melted and iron oxide to the amount of 3-20 per cent of the chrome ore used in the reducible mixture. Caustic soda, soda ash or the like may be added to the slag or to the reducible mixture. In a modification, a melt of metal may be made with the usual amount of slag, and the relative bulk of slag to metal afterwards adjusted by withdrawing some of the metal prior to the addition of the reducible mixture to the slag. Specifications 198,323, 211,210, and 213,737 are referred to.
Patent GB-1279576-A (GB)
Title: Conduit tubes for arc welding apparatus
IPC: B23K9/12
Filed: 1970-01-23
Abstract: 1279576 Coated tube MITSUBISHI DENKI KK 23 Jan 1970 [23 Jan 1969] 3389/70 Heading B2E [Also in Divisions B3 and F2] A tube for use as a welding electrode guide conduit has an internal coating layer 20 of molybdenum disulphide applied by the steps of first chemically cleaning and drying the internal surface then pouring liquid molybdenum disulphide into the tube to coat its entire inner surface and finally drying and baking the tube, e.g. by heating to 40‹-50‹C for about four hours. To extend the life of the coating powdered lubricant may also be injected in use into the tube.
Patent GB-1161665-A (GB)
Title: Pressure Sensitive Electric Switches
Inventor: PARKES ERIC BERNARD
IPC: H01H35/34
Filed: 1966-01-26
Abstract: 1,161,665. Fluid-pressure actuated switches. JOSEPH LUCAS (INDUSTRIES) Ltd. 6 Jan., 1967 [26 Jan., 1966], No. 3440/66. Heading H1N. A pressure-sensitive electric switch comprises a pair of metal diaphragms 24, 25 separated by an insulating diaphragm 27. One stainless steel diaphragm 24 engages a plunger 23 for opening normally closed contacts 19, 20 against a spring 21. The second stainless steel diaphragm is sealed by an 0-ring 26 in the housing 11 and is in contact with the pressure fluid. The synthetic resin moulding 14 carrying terminals 15, 16 is retained in the metal housing 11 at an inwardly rolled edge.
Patent GB-1422085-A (GB)
Title: Thick-film circuits production of formaldehyde in a fluidised bed with a specific
IPC: H05K1/09
Filed: 1974-01-24
Abstract: 1422085 Printed circuits SIEMENS AG 24 Jan 1974 [28 Feb 1973] 03442/74 Heading H1R Thick film printed circuits on a through hole ceramic substrate are formed by depositing conductor paths on each side of the substrate or between superimposed substrates interconnected by the through holes (Figs. 1, 2, not shown), which are filled with a mixture of, e.g. gold screen printing paste mixed in a diluting oil with refractory globules or grains of a powdered refractory material, which may be granulated carbides of, e.g. silicon, aluminium oxide, or quartz to which a glass powder may be added; the assembly being thereafter sintered. In application (Fig. 3, not shown) the holes are filled by angled elastic scrapers disposed to form a V-groove, within which the prepared material is located and between which the substrate is advanced.
Patent GB-1114820-A (GB)
Title: Improvements in or relating to the upgrading and dewatering of coal
Inventor: CHAKRAVARTI ARUN KUMAR
IPC: B03D1/02
Filed: 1967-01-24
Abstract: In a process for upgrading small coal, a thick slurry of the coal is prepared and is mixed with a mixture of paraffinic and tar oils to form an oily pulp which is aerated in a flotation cell so that the clean coal is floated up as oiled flocs, the latter being then removed from the cell and dewatered in a centrifuge.  Crushed coal or natural small coal is wet screened at 1.0 or 0.5mm.  The undersized slurry is thickened to 35 to 40% solid content in a rake thickener, settling cone or hydrocyclone.  The thickened slurry is treated with 1-5% by weight of a mixture of diesel and tar oils.  The clean coal-flocs formed are floated by aeration in a flotation cell.  The flocs are then partially dewatered on a curved static wedge-wire screen and delivered to a pug mill or screw mixer for blending back with the oversized fraction originating from the wet screening step. With slurry containing undersize in the range of - 1mm. or coarser, the blending back step may be eliminated.  The blended product or the partially dewatered slurry (-1mm.), as the case may be, is then finally dewatered in a continuously operated basket centrifuge.
Patent GB-366717-A (GB)
Title: Improvements in or relating to electrolytic processes
IPC: C25B11/02
Filed: 1931-02-03
Abstract: 366,717. Electrolysis. CONRADTY, E. and CONRADTY, 0., (trading as CONRADTY, C.), 9, Spittlertorgraben, Nuremberg, Germany. Feb. 3, 1931, No. 3495. [Class 41.] An anode comprises a number of plates of carbon, graphite, magnetite, or other material so constructed and arranged that the total effective surface is not altered by erosion. In the arrangement shown the plates are of trapezoidal section with inclined separating surfaces, the shaded parts representing the section when partially consumed. The section may alternatively be a parallelogram.
Patent GB-104236-A (GB)
Title: Improvements in or relating to Machinery or Apparatus for Joining or Jointing Together Tongued and Grooved Boards.
Inventor: EVANS FREDERICK
IPC: B27M3/00
Filed: 1916-03-10
Abstract: 104,236. Evans, F., Gibson, J., and Gibson, J. March 10, 1916. Planing; feed-motions. - Machines for assembling tongued and grooved boards comprise an endless conveyer 16 which carries the boards 46 laterally and in succession to pressure plates 33, which retard the motion of the boards and thereby cause them to be pressed together. Glue may be applied to the joints before the boards are placed on the carrier. The conveyer comprises two chains 16 running in channels 21 and furnished with pushing-dogs 17, one chain being adjustable laterally to vary the width of the conveyer by a keyturned shaft 23 operating a pinion 24 carried by a bracket 22 depending from the channel 21 and gearing with a fixed rack 25. While running in the channels 21, the pivoted dogs project to feed the boards, and at the end of the channels they drop away from the boards and are supported while passing around the sprocket-wheels 13 of the chains, first by drums 18 and then by a guideplate 19. The pressure plates 33 are carried by frames 35 supported by brackets 37 adjustable laterally on a slideway 7 by key-turned screwthreaded shafts 39. Vertical adjustment of the pressure plates 33 is effected by adjusting the slideway 7 by rods 27, and screws 28 turned by worm-wheels 29 gearing with worms 30 on a keyturned shaft 31. Nuts 34<a> enable the pressure of the plates 33 to be regulated.
Patent GB-100719-A (GB)
Title: Improvements in Ball Mills.
Inventor: MCGOWAN JOHN POOL
IPC: B02C17/00
Filed: 1916-03-11
Abstract: 100,719. McGowan, J. P. March 11, 1916. Vaccines. - A mill, specially adapted for grinding bacteria and bacterial products, such as tubercle bacilli, is made of glass, porcelain, silica, &c., the balls being of similar material. The mill is roughly circular in shape and may be of uniform width or wedge-shaped in crosssection, as shown in Fig. 1. The entrance is on the rim and consists of a neck into which a stopper may be ground. The stopper projects into the interior to break or stir up the balls, and projections are formed on the rim for the same purpose. All the inside angles of the mill are rounded and are of a size to allow a ball to run through them easily, and the slopes and curves are all gradual. The width of the mill is kept as small as possible, while allowing the balls to run around without locking. The balls may be etched or smooth, and are of a size depending on the nature of the grist. When the mill is charged, the stopper is fixed, preferably by means of sticking-plaster, and the mill is bound to a rotating plate with an intervening pad of cotton-wool. The contents of the mill are dried by means of air which is drawn through the mill by means of tubes passing through a stopper. After grinding, the contents of the mill are washed out by similar means,
Patent GB-590713-A (GB)
Title: Improvements in and relating to the separation of alkylamines
Filed: 1945-02-14
Abstract: <PICT:0590713/III/1> Mixtures of triethylamine, ethanol and water are concentrated with respect to triethylamine by contacting the vapour mixture in a distillation column with water.  The concentrated mixture, removed as vapour from the head of the column, should contain less than 2 per cent. ethanol; while aqueous ethanol is withdrawn at the base.  Pure triethylamine is obtained by warming the condensed distillate to 60 DEG -70 DEG C. and submitting the triethylamine-rich layer, which thereby separates, to distillation. The process may be operated continuously by feeding the vapour mixture to be treated into column A to the head of which the water-rich layer from decanter C is introduced through pipe f.  The vapours from column A are condensed, part of the condensate being returned to the column, through line b, as reflux and the remainder being heated in heater H and then passed to decanter C where separation into two layers occurs.  The upper, triethylamine-rich layer, is fed through line d, into column D from the base of which pure triethylamine is withdrawn.  The aqueous distillate from column D is condensed and mixed with that part of the condensate from column A which is flowing to the heater and decanter.  Additional water may be introduced into the system through line l if required.  The process can be simplified by maintaining the condensers at the temperature required for efficient phase separation.  The decanter may be replaced by a packed extraction column.  Specification 304,756, [Class 32], is referred to.
Patent GB-673070-A (GB)
Title: Improvements in or relating to machine tools
Inventor: SMEDLEY JOHN
IPC: B23C3/18
Filed: 1949-02-10
Abstract: 673,070. Copy-turning. ROLLS-ROYCE, Ltd. May 3, 1950 [Feb. 10, 1949], No. 3730/49. Class 83 (iii). A lathe for generating hyperboloidal or conical surfaces, e.g. turbine blades, comprises a tool-head which is rotatable by means of a hollow motordriven shaft 18 and a toolholder 34 which is fed along guides 33 on the tool head by a lead-screw 35 connected by bevel gears 36, 37 to a shaft 27 which is mounted within the shaft 18 and driven from the latter by a gear train 28 ... 31 so as to rotate in the same sense as the shaft 18 but at a different speed therefrom. The operative connection between the lead-screw and the tool-holder comprises a half-nut 39a formed on a spring-loaded slide 39 so as to be engageable with the lead screw. The member 39a can be manually disengaged from the lead screw either by means of a finger-piece 40 or a lever on the tool-holder. Further, the member 39a is provided with chamfered flanges 39c for disengaging it automatically from the leadscrew at the limits of travel of the tool-holder, one of the flanges engaging a chamfered edge on the end of an adjustable bolt-like member 38 and the other engaging a chamfered shoulder 44 on the lead-screw. Specifications 568,575 and 619,690 are referred to.
Patent GB-230964-A (GB)
Title: Improvements in the construction of electric coils
IPC: H01F41/04
Filed: 1924-02-14
Abstract: 230,964. English Electric Co., Ltd., and Beringer, P. Feb. 14, 1924. Electromagnets; insulation.-In coils for transformers and other electrical apparatus in which the overhanging ends of the sheets of insulating material placed between adjacent layers of winding are supported by edge strips, lateral displacement of the layers of winding in relation to each other is prevented by employing edge strips of twice the thickness of one layer so that one such strip bears against two layers of winding. Sheets of insulating material 14 are folded to form a double thickness between adjacent layers of winding 12, 13 and to form an envelope for the edge strips 1 .. 10. Alternatively, the sides 17 of each envelope may be omitted, the sides 18. 19 being adhesively secured to the edge strips. The edge strips at on side of the coil are staggered in relation to those at the other side of the coil.
Patent GB-1422327-A (GB)
IPC: B01J23/60
Filed: 1972-01-27
Abstract: 1422327 Steam reforming catalyst BRITISH GAS CORP 18 Jan 1973 [27 Jan 1972] 3889/72 Heading B1E [Also in Division C5] A steam reforming catalyst composition or precursor composition comprises (i) 1-20 % wt ruthenium or a ruthenium compound, calculated as ruthenium; (ii) 30-50% wt zinc oxide or a zinc compound, calculated as the oxide and (iii) 65-35% wt of a carrier. The active-form of the catalyst contains ruthenium and zinc oxide. The carrier specified is alumina. The composition may be formed by precipitation onto the carrier or by co-precipitation with the carrier.
Patent GB-594357-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/122
Filed: 1945-02-16
Abstract: 594,357. Feedwater heating systems. CAIRD & RAYNER, Ltd., and REDDICK, R. F. Feb. 16, 1945, No. 3966. [Class 64 (i)] [Also in Group XXIX] A steam-heated boiler feedwater heater 16, Fig. 1, is provided with means whereby the water is by-passed through a pipe 25 in the event of a leak developing in any of the heater tubes 30. A valve 1 in the inlet 4 to the heater is connected to a piston 2a having a small orifice 3 whereby the pressure on either side of the piston is equalised, so that the valve is opened by the pressure of incoming water. A pipe 6 connects a chamber 5 below the piston with a floatoperated valve 17 which normally closes the pipe 6 but which connects it with a vent 19 on the accumulation of water in a chamber 15 connected to the steam side of the heater. When the pipe 6 is thus vented, the pressure below the piston 2a falls and the valve 1 closes, whereupon the water flows through the by-pass 25, opening a spring- loaded valve 27 and closing a non-return valve 23 in the heater outlet. The pipe 6 may also be vented by a hand-operated valve 22. In order to prevent the valve 1 from reopening when the water in the chamber 15 is dispersed, a differential piston valve 8, Fig. 2, is connected at 7 to the pipe 6 and at 11 to the inlet 4 of the heater, so that upon the. reduction of pressure in the pipe 6 when this is vented, the piston 9 is moved to the left by the pressure in the pipe 11 to place the pipe 7 in communication with a vent 13 until the piston is reset by a screwed spindle 29.
Patent GB-671569-A (GB)
Title: Improvements in apparatus for disintegrating and screening particulate material
IPC: B02C13/284
Filed: 1950-02-16
Abstract: 671,569. Impact pulverizers. TYLER, G. M. Feb. 16, 1950, No..3990/50. Class 59 In disintegrating and screening apparatus of the type disclosed in Specification 477,183, the material is fed by the beaters onto two or more screens or screening sections having different degrees of fineness of mesh so that it is separated into two or more materials of different degrees of fineness of granule. As shown in Fig. 1 the apparatus comprises a hopper or casing 8 within which is supported an outer fine-mesh screen 16 and an inner coarse mesh screen 6 both screens being of inverted pyramidal form. The hopper has an outlet 9 for dust-like material, the outer screen has an outlet 17, and the inner screen has an outlet 7. Material to be treated is fed from'the feed hopper 15 on to rotatable beaters 3, 4 from whence the broken particles are thrown on to screen 6. Lumps which do not pass this screen leave by the outlet 7 and may be returned direct to the mill. Material not passing through the screen 16 is the required product whilst the fines passing through the screen are treated with water or steam jets 20, heaped for agglomerization and then returned to the mill. In the embodiment shown in Fig. 3 coarse lumps rejected by screen 6 are allowed to drop on to further beaters 41 all material which will not pass through the upper or lower portions of the screen 16 being then assumed to have the required granule size. If a hardened spherical form of granule is desired the material discharged from outlet 17 may be rotated in a separate drum which during rotation is subjected to external heat.
Patent GB-305545-A (GB)
Title: Improvements in and relating to processes for purifying from naphthalene the distillation gases of coal
IPC: C10K1/04
Filed: 1929-02-06
Abstract: 305,545. Gewerkschaft M. Stinnes. Feb. 6, 1928, (Convention date]. Condensing and washing process ; naphthalene , removing.-Naphthalene is separated from coal gas by treatment with a solvent at temperatures above 80‹ C., and the solvent vapours together with the naphthalene are precipitated by subsequent cooling. The gas is bubbled through naphthalene oil, tar oil, &c. at about 100‹ C., and after cooling, the condensed solvent is reused, preferably after separation of naphthalene by cooling- or distillation. Specifications 17420/09 and 296,925 are referred to.
Patent GB-249285-A (GB)
Title: Improvements in windows and wind screens for use more especially on motor vehicles
IPC: B60J1/00
Filed: 1925-02-13
Abstract: 249,285. Austin, Sir H. Feb. 13, 1925. Wind and like screens.-A rubber tube C of a gauge which is large in comparison with its diameter is interposed between relatively-movable meeting edges of the two sections A and B of a window or windscreen to prevent draught and rattle. The edge of the lower section is concave transversely and that of the second may be convex or concave also, and the lower edge is convex in the plane of the screen, the rubber tube being held in the hollowed edge by means of cement or a wire &c. D secured by countersunk nuts F to the frame or side standards. The wire D may be flattened except at the screwed ends.
Patent GB-727719-A (GB)
Title: Improvements in or relating to automatic pilots
IPC: G05D1/00
Filed: 1952-05-16
Abstract: 727,719. Automatic steering control systems. SPERRY CORPORATION. May 16, 1952 [June 8, 1951], No. 4046/54. Divided out of 727,673. Drawings to Specification. Class 38 (4). The subject-matter of this Specification is identical with that of Specification 727,673 but the claims differ.
Patent GB-287999-A (GB)
Title: Improvements in and relating to distillation and gasification of solid carbonaceous material
IPC: C10G1/02
Filed: 1927-02-14
Abstract: 287,999. Croad, A. K., (Zieley Processes. Corporation). Feb. 14, 1927. Producer.-Light hydrocarbons are obtained' by the distillation and gasification of coal and the like in a chamber 1 below which is an ash pit 2, air being supplied through pipes 6, 6<1> and steam through pipes 7, 7<1> the hydrocarbons passing off through a pipe 4 to the condensers. Heavy condensates are returned to the chamber through a pipe 9.
Patent GB-1002413-A (GB)
Title: Method for obtaining concentrates of metals from solutions
IPC: C01G1/00
Filed: 1962-02-02
Abstract: A method of obtaining concentrates of germanium, gallium, vanadium, thallium, cadmium, tin or uranium comprises contacting an aqueous solution containing such values with a humic acid or humic acid salt, as such or as peat, lignite or coal, to effect chemisorption, and removing the metal values from the absorbent. Removal may be effected by burning the absorbent or by elution. The pH of the starting solution and the eluting solution may be controlled to the optimum pH for removing a specified metal, and variation of the pH of the starting solution may thus be employed for successive separation of specified metals.
Patent GB-1495643-A (GB)
Title: Suspension strut
IPC: F16F9/54
Filed: 1975-01-30
Abstract: 1495643 Vehicle suspension unit endconnections ITT INDUSTRIES Inc 30 Jan 1975 [5 Feb 1974] 4085/75 Heading F2S The end-connection to the vehicle body of a combined coil spring/telescopic shock absorber vehicle suspension unit is via two resilient members 11a, 11b, the first member 11a securing a part (piston-rod 3) of the shock absorber to the body 15, and the second member 11b acting between the vehicle body and an abutment flange 16 for the coil spring 7. The two resilient members 11a, 11b may be completely separate (Fig. 4, not shown) or joined by a web. A third resilient member 12 acts between the body and a flange on the piston-rod.
Patent GB-562998-A (GB)
Title: Improvements in the construction of retorts for the heat-treatment of materials, furnaces, kilns, and the like apparatus
IPC: C10B29/02
Filed: 1943-03-13
Abstract: 562,998. Furnaces, kilns, &c. WOODALL-DUCKHAM (1920), Ltd., and WORTH, F. C. March 13, 1943, Nos. 4112 and 18735. [Class 51 (ii)] In furnaces, kilns, &c. in which a plane vertical cavity is provided between two parts of the furnace &c. formed of materials having different coefficients of expansion, a sealing device is provided for the cavity consisting of a recess or recesses arranged in one or both walls of the cavity to support a freely movable sealing member which makes linear contact with the walls of the recess or cavity. As shown in Figs. 1 and 2, recesses 13, 13a are provided in the walls 10, 11 of the cavity 12 and have inclined lower surfaces on which rests a roller 14 making linear contact with the walls of the cavity or recess, as shown. The roller is formed in sections each with a spigot and socket at opposite ends. Fig. 5 shows a semicylindrical sealing device 21 with a recess at the top to collect dust falling down the cavity. A plate 16 arranged in the recesses 17, Fig. 1, may also be arranged in the cavity above the seal to prevent dust falling on to the seal. The sealing member may be in the form of a plate 18, 20, 23, as shown in Figs. 3, 4 and 6, adapted to pivot on the walls of the recesses or cavity.