baber/WOPTO huggingface dataset:
Patent GB-295312-A (GB)
Title: Improvements in or relating to the treatment or purification of coal or other carbonaceous material
IPC: B03B5/44
Filed: 1927-09-16
Abstract: 295,312. Soc. Anon. d'OugrÚe-Marihaye. Aug. 9, 1927, [Convention date]. Wet separating.-A process for obtaining by the float-and-sink method coal and natural carbonaceous material in a very pure state, e.g. a coal containing less than 1.25 per cent of ash, consists in reducing the coal to granules of less than 10 millimetres in diameter, and in wetting the coal by a succession of liquids of gradually increasing strength, commencing with water and reaching finally the density required for the float- and-sink method. A chart is embodied in the drawings showing a number of curves for different coals, the abscissae and ordinates corresponding respectively to the ash content required and the density of the solution. In plant for carrying out the process there is provided a feed hopper 1, distributor 2, crusher 3, screening apparatus 4, washing apparatus 5, rotary distributor 6 and table 7. The nuts then pass to solutions of calcium chloride of increasing densities after which they are drained as by a shaking screen or other means and pass to the separator 8 which contains the standard solution for separating to the required ash content. In this separator is used preferably calcium chloride which is kept at the required strength. The pure coal is discharged by paddles 8<2> over the sill 8<4> of a weir, while the residue is removed intermittently or constantly through a siphon 8<3>. The pure coals and residues are again taken up by draining apparatus to the three solutions, but in a decreasing order of densities. Draining at 7a precedes passage through each solution. On issuing from the weakest solution the coal is passed through clear water and drained. The systematic method of washing mentioned above reduces the amount of soluble salt lost.
Patent GB-683988-A (GB)
Title: Improvements in washing apparatus for the separation of fine particles from gases
IPC: B01D47/02
Filed: 1950-10-06
Abstract: 683,988. Washing gases. MODE W. F. May 23, 1951 [Oct. 6, 1950], No. 24462/50. Class 55 (ii). In a gas washer in which the gas flows upwardly through a tortuous passage formed in a casing by spaced, overlapping baffles which extend inwards and downwards from opposite walls, whilst washing liquid cascades off the free lower edge of each baffle on to the next below, each baffle has a number of thin parallel strips set edgewise on its upper face and extending in the direction of flow of the liquid so that the liquid cascades off the baffle in a continuous unbroken sheet. In the form shown, the washer consists of a casing 1 having its lower part formed as a tank 2 for the washing liquid, whilst the upper part contains two series of inclined baffles 5 mounted in vertically spaced, overlapping relation. Each baffle consists of a flat metal plate with an upwardly curved edge, several parallel strips 6 of thin metal being set on edge on its upper surface. Washing liquid flows from a supply pipe 7 and nozzle 7a into the channel between each pair of adjoining strips at a sufficient rate to ensure that the sheet of liquid leaving the edge of the baffle is continuous and unbroken and retains this character for most of its travel to the next baffle. The gas to be cleaned is admitted to the casing through a downwardly inclined duct 8 and first bubbles through the liquid in the tank, passing under a baffle 9 depending from the lowermost baffle 5. The gas then flows upwardly through the liquid curtains, any liquid entrained in the gas stream being removed by a filter consisting of a mesh 10 on which is supported a mass of Raschig rings. The clean gas discharges through an outlet 11. Specification 689,690, [Group XXVIII], is referred to.
Patent GB-1299143-A (GB)
Title: A clip for retaining a covering strip and a combination of the clip and covering strip
IPC: E04F19/06
Filed: 1971-04-19
Abstract: 1299143 Clips HUNTER DOUGLAS 19 April 1971 [20 March 1970] 24707/71 Heading E2B [Also in Division B6] A clip 6 comprises one arm 5 perpendicular to a second arm comprising two lateral straps 10 and a central strap 9 offset downwardly to the straps 10 whereby the edge of a panel is gripped by forcing it between the straps 9 and 10 and a strip is secured to the clip by engaging bent over edge portions 2, 3 of the strip with bent edge portions 7, 12 of the clip. Alternatively the clip has two portions 15, 19 at right angles and the portion 15 has two lateral straps 17 so that the edge of the panel is secured between the straps 17 and the portion 19 and the strip engages the bent edge portion 21 of the portion 19 and a tab 16 projecting from the portion 15. The clip is described as retaining the strip to fill the gap between the edge of the panel and another surface such as a wall adjacent thereto.
Patent GB-1521565-A (GB)
Title: Control system for normalizing the air/fuel ratio in a fuel injection system
IPC: F02D41/06
Filed: 1976-06-15
Abstract: 1521565 Automatic control of engine exhaust BENDIX CORP 15 June 1976 [14 July 1975]  24791/76 Heading G3R In a closed loop fuel injection system for an I.C. engine having: a gas sensor 10, whose internal impedance is high upon start-up and which when operating generates a first or a second voltage in response to the presence or absence of a gas; an amplifier 12 which provides a high output voltage while sensor 10 is warming up and when it generates the first voltage, and provides a low output voltage when sensor 10 generates the second voltage; and delay means 14 for maintaining the high output voltage provided by amplifier 12 for a predetermined period after it has switched to its low output voltage;  there are provided: a primary integrator 16 which controls fuel injection means 20 in a relatively narrow range during normal engine operation; a secondary integrator 18, responsive to the primary integrator, which controls means 20 in a relatively wider range outside normal engine operation; a first switch 22 responsive to the high output voltage of amplifier 12 to cause integrator 16 to maintain its output at a predetermined level; and a second switch 28 responsive to the output of delay means 14 to cause integrator 18 to maintain unmodified for said predetermined period the signal generated by integrator 16 and fed through integrator 18. The system maintains control of the fuel injection means when gas sensor 10 is inoperative due to being below its operating temperature and having a high internal impedance. The switches 22, 28 operate upon integrators 16, 18 by shunting integrating capacitors 24, 26 thereof, so that the integrators act as fixed output amplifiers. As shown in Fig. 2, the system is also responsive to an engine speed transducer 30 which emits a high signal when engine speed is below idling speed, for example. The signal is coupled in OR relationship with the output of amplifier 12 to delay means 14 and switches 22, 28. The outputs of transducers 32, 34, which respectively give high signals when the throttle is wide open and when the engine coolant is below a predetermined temperature, are both connected to switches 22, 28.
Patent GB-262059-A (GB)
Title: Improvements in instruments or apparatus comprising casings and sensitive elements such as diaphragms retained in such casings
IPC: H04R7/22
Filed: 1926-10-06
Abstract: 262,059. Neufeldt & Kuhnke, Betriebsges, (Assignees of Neufeldt & Kuhnke). Nov. 27, 1925, [Convention date]. Diaphragms. - In an instrument, such as a microphone, comprising a sensitive element, such as a diaphragm a, enclosed in a casing l having a removable cover, means are provided for removing the diaphragm with the cover without exposure to detrimental pressure. The diaphragm is supported by an annular socket b having lugs e which are inserted in alternate notches m in the rim of the casing to prevent displacement of the socket. A cover i is stiffened by an annular groove k, which also holds down the diaphragm, and is applied by introducing lugs n into the notches not occupied by the lugs e, and turning the cover until locked by stops h. The diaphragm can be removed between the cover and the socket by turning the cover until lugs n, e coincide. According to a modification the diaphragm is held down by springs fitted to the cover.
Patent GB-277977-A (GB)
Title: Improvements relating to boiler feed water supply systems
IPC: B01D19/00
Filed: 1927-09-21
Abstract: 277,977. Perdrizet, P., and Meyer, C. Sept. 21, 1926, [Convention date]. Feedwater, heating.-Feedwater is heated. in a feed tank 2, Fig. 3, and then passed through a tank 5 in which it is de-aÙrated and again heated by jets of steam. The water in the feed tank is heated by the mixture of gases and steam led off from the tank 5. The mixture may pass into direct contact with the water in the feed tank or it may pass through a heat exchanger or a jet condenser supplied with water from the feed tank. Exhaust or tapped steam is supplied to the de-aÙrating tank through nozzles 27, Fig. 1, arranged in pairs between baffles 31, 32, which direct the water in a zig-zag course in its passage through the tank. Water is supplied to the deaerating tank through a float valve 22. A drain pipe 26 is connected to the bottom of the tank through valves 25.
Patent GB-1276937-A (GB)
Title: Radiation detector
IPC: A61B6/03
Filed: 1970-05-22
Abstract: 1276937 Detecting ionizing radiation COMMISSARIAT A L'ENERGIE ATOMIQUE 22 May 1970 [23 May 1969] 24912/70 Heading G1A [Also in Divisions H1 and H4] A matrix-type ionization chamber comprises a plurality of identical cells, the occurrence in each of which of an ionizing event is identified by outputs on a unique combination of lines, the cells being each comprised by a filamentary anode and two flat half-cathodes disposed at equal distances from the anode. The potential applied to the cell is such that proportional operation is obtained. Construction. In the co-ordinate array of Fig.1, designed to analyse the distribution of radiation over a plane, N x n detection cells are formed by crossed grids of half-cathodes 16, 18 either side of anode plane 19. The half-cathodes are carried on insulating layers 12, 14. They may be formed as metallized layers as printed  circuit boards. The surface of the enclosure further from the source is of beryllium and the nearer of plastics material. The gas filling may be xenon, krypton, argon and a mixture for X-ray detection, or argon and carbon dioxide for hard #. The whole device may be slightly curved. In an alternative structure, more suitable for monitoring the one-dimensional angular displacements of a radiation beam, Fig.3, two curved rows of half-cathodes are provided, connected as shown. In another arrangement, Fig.4 (not shown) an overlapping pair of half cathodes are mounted at one side of an anode to form each cell. Circuit and operation. The outputs from the half cathodes are connected through preamplifiers (29), amplitude discriminators (30), AND-circuits (32) and monostables (34) to an address system (26) which localizes the occurrence of each detected event and builds up a radiation distrubution pattern, by means of counters. The AND-circuits (32) are associated with NOR-circuit (36) and a monostable (38) in order to prevent counting of two pulses occurring within 20 nsecs of one another i.e. which are due to the same event. Instead of using counters, the address (26) output may be fed to an oscilloscope, whose image may be photographically recorded. Applications. The apparatus may be used for X-ray diffraction analysis of a small sample which is placed in front of the detector and acts effectively as a point source of radiation. A radiograph of a large sample of approximately the same size as the detector may be produced, an X-ray collimating arrangement being positioned between the sample and the detector.
Patent GB-219274-A (GB)
Title: Tool for cutting and removing pipe from wells
IPC: E21B29/00
Filed: 1923-10-08
Abstract: 219,274. Kammerer Corporation, (Assignees of Reilly, J. B., and Stone, C. H.). July 19, 1923, [Convention date]. Portable turning-apparatus.-A tool for cutting drill-pipe when stuck in a well comprises a tubular body adapted to be slipped over the pipe, cutters carried by the body and means for moving the cutters towards the axis of the body; the tool may also be used for removing the cut-off portion of pipe from the well. The tubular body 13, Fig. 2, is provided with a cutting shoe 2 and has cutters 11 pivoted at 14 in slots 12; within the body is a preferably annular member 15 normally held by shear-pins 28 and provided with bevelled slots 16 for engagement with the free end of the cutters, while above the member 15 is a spring 21 supporting ball races 19, 18 with interposed ball bearings 20, the upper race 18 carrying spring, or spring-pressed, arms 22. The body 13 is lowered around the pipe b to be cut and is then raised; the arms 22, engaging a coupling a, are held and act through spring 21 to break the shear pins 28 and, through member 15, to move the cutters inwardly; the body 13 is then rotated through, tubing 23 to cause the cutters to cut the pipe. The cut-off portion is raised by the engagement of the arms 22 or, if these yield, by the cutters 11. In a modification, the spring 21, lower ball race 19 and balls 20 are omitted, while in a further modification the arms 22 are replaced by circular-segmental dogs pivoted to the part 18 by inter-engaging tongues. In a further form, the arms 22 are omitted and the part 18 supports a flexible collar of reinforced leather &c. forming a closure for the space between the body 13 and pipe b; fluid passed down the tubing 23 acts through this closure as a piston to operate the cutters. In Fig. 17, the cutterfeeding member 15 supports a sleeve 18<a> with a conical bore containing wedge slips 36 which, on upward movement of the body 13, lock against the pipe b to effect operation of the cutters. In Fig. 19, the cutters 11<e> are carried by bowsprings 42 secured at their upper ends to fixed pivots 43 and at their lower ends to slidable pivots 44.
Patent GB-666554-A (GB)
Title: Preparation of phenols by the sulphonation process
IPC: C07C37/04
Filed: 1947-09-12
Abstract: A continuous process for the production of a phenol consists in passing steam through a liquid melt of a mixture of an alkali sulphonate and an alkali phenate to distil out the phenol, continuously recovering the by-product alkali sulphite by treatment of the melt residue with water, heating an aqueous reaction mixture of this sulphite in the form of a 25 per cent aqueous solution, part of the phenol, and not more than a 5 per cent excess over the theoretical amount of lime to give alkali phenate and calcium sulphite, separating the alkali phenate, and returning it mixed with additional alkali sulphonate to the fusion melt.  The phenols prepared in this way include phenol, and other hydroxy aromatic compounds, e.g. naphthols, and hydroxy heterocyclic compounds, e.g. hydroxypyridines.  The preparation of phenol by the claimed process is described, and in this case benzene is sulphonated with oleum at 60-80 DEG  C. in the presence of an alkali salt; the temperature is raised subsequently to 150-170 DEG  C. and benzene vapour passed into the reactants to give a 90 per cent or more conversion to benzenemonosulphonic acid.
Patent GB-1533833-A (GB)
Title: Image processing apparatus
IPC: G06V10/10
Filed: 1977-06-15
Abstract: 1533833 Storage arrangements INTERNATIONAL BUSINESS MACHINES CORP 15 June 1977 [30 June 1976] 25032/77 Heading G4A In apparatus for rotating by 90 degrees video data having 2048 bits per scan line, the data is deserialized and stored, parallel by byte, in successive row locations of a memory (40, Fig. 2, not shown) holding 2048 bytes in 8 rows, by incrementing address counter (41). Read out into registers (50-57) is effected column by column by incrementing the top 3 bits of the address counter for each state of the bottom 8 bits from which the rotated data may be read to an 8 by 8 storage array (60-67) so that corresponding bits of the 8 read out bytes are stored in the same column. Preferably two memories 118, 122 (Fig. 3) are used, one being read out whilst the other is loaded under the control of two counters (204, 206, Fig. 4, not shown) the first incremented normally for loading and the second having its top 3 bits incremented for each state of the bottom 8 bits for unloading, the top 3 bits being decoded to select to which if registers 150-157 the read out data is fed.
Patent GB-640947-A (GB)
Title: Improvements in and relating to the moulding of long members of pre-stressed vibrated concrete
IPC: B28B23/04
Filed: 1947-09-12
Abstract: 640,947. Vibrating moulds for prestressed concrete members. WEINBERG, V. Sept. 12, 1947, No. 25034. Convention date, Sept. 13, 1946. [Class 87 (ii)] [Also in Group X] Moulds a in which long concrete members having reinforcement pretensioned by forces b, are moulded, are carried by a frame c resiliently mounted on a support e, the mould being vibrated along its length by a single vibrator. The mould may be rigidly connected at one end to the frame, and rest freely thereon at its other end and the tensioning of the reinforcements may be effected by the tensioning of the mould.
Patent GB-600096-A (GB)
Title: Improvements in or relating to television or like apparatus incorporating a cathode ray tube
IPC: H04N5/645
Filed: 1945-09-27
Abstract: 600,096. Television. JACKSON, D., and PYE, Ltd.. Sept. 27, 1945, No. 25046. [Class 40 (iii)] [Also in Group XL (a)] In cathode-ray tube apparatus, a cathode-ray tube carried by a chassis is enclosed in a cabinet having an opening in its front wall through which the screen end portion of the tube projects, this end being covered by a housing which projects from the front wall of the cabinet. In Figs. 1, 2, a cabinet 10 enclosing a chassis 11 has a cathoderay tube 12 supported at the rear end by a saddle 13 and at the front (screen) end by a saddle and strap arrangement 14. The front end of the tube which overhangs the front edge 15 of the chassis is fitted with an embracing rubber gasket ring 16 incorporated integrally with a masking frame 17 and projects through an opening 19 in the front wall of the cabinet over which an oblong housing 20 having upper and lower bulbous portions 21 is fitted. The gasket has a portion 31, Fig. 3, which is shaped to fit around the front periphery of the tube. The housing 20 is openfronted and formed with a recess 22 in which a transparent protective plate 23 is held by a bezel 24, the whole assembly being secured to the chassis by bolts 25. The ring 16 rests in a saddle strip member 36 supported at the front edge of the chassis by two angle plate brackets 32, Fig. 6, and is secured therein by an embracing strap 38 clamped to strip 36 by bolts 40. Two axial slots are provided at diametrically opposite points on the gasket ring 16 so that it can be tightened by the clamping strap and saddle against the tube without compressing the gasket to any great extent. In a modification, Fig. 4 (not shown), the masking frame is incorporated integrally with the housing, by moulding as a unit in a plastic material, and is formed with a recess to receive a transparent window plate. In a further modification, Fig. 5 (not shown), the projecting housing, masking frame and protective window are all made integrally as a single unit by moulding or pressing a transparent plastic material and rendering opaque, by spraying on the rear surface, all portions except that constituting the protective window plate. A loud-speaker 26 for reproducing the sound accompanying the signals displayed on the tube screen 18 may be covered with a grille or fret member 27 incorporating a movable shutter 28 behind which some of the pre-set controls may be disposed.
Patent GB-1376469-A (GB)
Title: Weft-inserting apparatus for looms
IPC: D06M14/34
Filed: 1972-05-26
Abstract: 1376469 Shuttleless looms; rapier drives RUTI MACHINERY WORKS Ltd 26 May 1972 [2 June 1971] 25090/72 Heading DIE A rapier 27 is driven by flexible tapes 13, 14, attached to the rapier and a drum 11, the tapes wrapping the drum in opposite directions so the tapes 14 pull the inserter into the shed and the tape 13 pulls the inserter out of the shed. The tapes may be attached to the inserter by adjustably loaded springs to resiliently mount the inserter and to provide for when tapes are wrapped. more than once around the drum.
Patent GB-1203928-A (GB)
Title: A method of gas heating up a hot blast stove for regeneratively heating the air to be fed to a blast furnace
IPC: C21B9/12
Filed: 1969-05-16
Abstract: 1,203,928. Hot blast stoves; air preheaters. KONINKLIJKE NEDERLANDSCHE HOOGOVENS EN STAALFABRIEKEN N.V. 16 May, 1969 [7 June, 1968], No. 25100/69. Heading F4K. In gas heated hot blast stoves, the flame temperature at or very shortly after commencing heating up is chosen so much higher than the air temperature when leaving the blast stove, or the dome temperature in the hot blast stove at the end of the preceding air blast period, as to correspond to 10 to 40% of the temperature difference between the maximum admissible flame temperature and the said air or dome temperature, and is increased, either gradually or in steps, until the maximum admissible flame temperature is reached. The stated objects of such control are to overcome heat expansions in the apparatus and to curtail the large temperature ranges inherent in hot gas stoves. A 'formula for determining the various flame temperatures over the heating-up period is given.
Patent GB-669395-A (GB)
Title: X-ray apparatus
IPC: H05G1/32
Filed: 1948-09-27
Abstract: 669,395. X-ray apparatus. SCHULMEISTER, L. Sept. 27, 1948 [Dec. 7, 1945], No. ,25101/48. Class 98 (i). [Also in Group XXXV] X-ray apparatus in which two transformers are provided for energizing an X-ray tube 1 is characterized in that, for producing a regulating voltage, in addition to a high-voltage transformer 2 which produces the basic voltage there is provided an auxiliary transformer 6 which is separated in space from the transformer 2 and which produces a variable secondary voltage, the secondary of the transformer 6 being connected in series with the secondary of the transformer 2, the additional voltage of transformer 6 being added vectorially to the basic voltage generated by transformer 2. The secondary 8, 9 of transformer 6 may be sub-divided stepwise, part or all of the secondary of transformer 2, which may be divided into two parts 4, 5 with part or all of secondary 8, 9 connected between them. The primaries 3, 7 of the two transformers may be connected to a common power supply 14. Specification 413,138 is referred to.
Patent GB-1382659-A (GB)
Title: Flame retardant polyamide compositions
IPC: C08K3/22
Filed: 1972-05-30
Abstract: 1382659 Zn, Ca and Mg stannates TORAY INDUSTRIES Inc 30 May 1972 [28 May 1971 16 July 197)] 25128/72 Heading C1A [Also in Divisions C3 and D1] Stannates MSnO 3 , where M=Zn, Ca, or Mg, are made (Ex. 2), by mixing molar aqueous solutions of Na 2 SnO 3  and MCl 2  at 28 C., filtering off the precipitated MSnO 3 , and drying at 100 C. Use.-Flame-retardants for nylon.