baber/WOPTO huggingface dataset:
Patent GB-700143-A (GB)
Title: Improvements in or relating to the chloridisation of material containing zinc sulphide in the production of zine chloride zinc sulphate
IPC: C22B1/08
Filed: 1951-12-17
Abstract: Material containing zinc sulphide, e.g. burnt pyrites, flotation blende, is chloridized for the volatilization of the zinc as chloride and sulphate by treatment up to 600-700 DEG  C. with gases containing chloride or hydrogen chloride and above 50 per cent. advantageously 70 per cent. or more, of oxygen by volume. Sulphur trioxide and dioxide may also be present.  The operation may be effected in preferably muffled, rotary, shaft, or fluidized layer type furnaces, or shelf kilns.  A roasted residue suitable for iron blast furnace treatment may be obtained.
Patent GB-1000919-A (GB)
Title: Improvements in or relating to mosaic information panels
IPC: G09F7/02
Filed: 1964-07-18
Abstract: 1,000,919. Display panels. H. MAUELL, [trading as RELAISUND FEINWERKBAU ESSEN HELMUT MAUELL]. July 18, 1964, No. 29548/64. Heading G5C. A composite display is formed by mosaic blocks 1 (Fig. 1), supported on a frame consisting of elements 2 (Fig. 5) whose arms 3 are connected at their ends. Fig. 4 shows a two-sided, selfsupporting panel frame built up of two sets of elements 2 connected by supporting pins 5, screws 11 attaching the differentially cranked ends 4 of the arms of four adjacent elements thereto. Alternatively a single set of elements is mounted on pins 5 attached to a support surface (Fig. 3, not shown), which may be curved or sloping. Figs. 2, 7 (not shown) illustrate three-armed elements, which receive hexagonal mosaic blocks. Blocks 1 are attached to the frame by magnets 12 having projecting poles 9, or by catch-heads engaging slots in blocks 1. Blocks 1 are of two-ply construction (Figs. 8, 9, not shown), one ply being recessed at corners to locate the block on screws 11 and poles 9. Pins 5 may be replaced by flanges on elements 2, and elements may be connected by overlying caps. Blocks 1 may be extended at panel edges (Fig. 1). The panel may display a circuit or flow diagram; blocks may be selectively illuminated, and instruments inserted in place of blocks.
Patent GB-760338-A (GB)
Title: Improvements in and relating to insulating structures
IPC: F25D23/06
Filed: 1953-10-26
Abstract: 760,338. Non-conducting coverings for heat; refrigerators. GENERAL ELECTRIC CO. Oct. 26, 1953 [Oct. 28, 1952], No. 29559/53. Classes 29 and 64(2) In an insulating structure comprising a relatively non-deformable wall 5 and a relatively deformable wall 8 sealed along their edges and spaced to define an evacuated space which contains a compressible filler material, the deformable wall 8 is corrugated and offset at 13 around its periphery adjacent to its sealing edge 11, to provide excess material which permits movement of the deformable wall towards the other wall under atmospheric pressure. In the freezer cabinet shown in inverted sectional elevation in the Figure, the inner side walls 8 and outer bottom wall bare made of deformable material, and move from the broken line position to the firm line position during evacuation. The sheet forming the inner side walls is also corrugated at 14 near its junction with the inner bottom wall 9 and at the vertical corners to allow for the movement during evacuation. A panel to be inserted between the inner and outer walls of a refrigerator or freezer is made in a similar way. The filler material may be glass fibre insulation.
Patent GB-930730-A (GB)
Title: Improved glossmeter
IPC: G01N21/57
Filed: 1960-08-26
Abstract: 930,730. Glossmeters. E. E. JELPKE. Sept. 18, 1961 [Aug. 26, 1960], No. 29578/60. Class 40 (3). In the glossmeter shown light from the prefocused car lamp 19 is directed along two paths (Fig. 2, not shown) to be received by separate photo-cells 27, 29 one of the paths including the material whose gloss is to be measured and which is positioned beneath a slit in the dustproof housing. The light falling upon the cell 29 (that is from the light beam which does not include the sample) is attenuated by a pair of pivoted blades (Fig. 4, not shown) biased towards each other and having extensions bent to pass across the front of the cell. Alternatively the attenuator may comprise an annulus of variable size or opacity arranged peripherally around a central opaque portion. The attenuator enables the glossmeter to be calibrated and thus made direct reading. The lamp 19 is supported in an apertured carrier (Fig. 3, not shown) slidable between an operative position and a position in which the lamp is readily removable from an opening in the glossmeter housing.
Patent GB-1016048-A (GB)
Title: Improvements in or relating to apparatus and method for producing controllable slow neutron chain reaction
Inventor: MARTIN ARTHUR FRANCIS
IPC: G21C1/22
Filed: 1964-07-22
Abstract: 1,016,048. Reactors. HERCULES POWDER CO. July 22, 1964, No. 29631/64. Heading G6C. In a nuclear reactor, having a powdered fuel suspended in a coolant gas in turbulent flow, the coolant is pumped through heat exchangers mounted round the core. The moderator, which may be solid or liquid, surrounds the reactor core chamber, containing the powdered fuel and tubulent gas. A biological shield encloses the reactor and heat exchangers. In one embodiment, cyclone separators, mounted within the liquid moderator, extract the fuel powder from the coolant gas prior to the gas entering the heat exchangers. The fuel is returned to the gas before entry into the core, after cooling. In an alternative form, which employs a solid moderator, cyclone separators are not used and the nuclear fuel suspension is passed, with the gas, through the heat exchangers. A portion of the fuel suspension may be withdrawn and the fission products removed before returning to the circulation system. Each heat exchanger contains less than a critical mass of fissionable material. Chemical reactions in the coolant gas are induced by the fission radiation to produce, e.g. NO and NO 2  from oxygen and nitrogen. Radio-active carbon dioxide may also be formed by the production of C 14  from N 14  and O 17  by neutron action. The fuel particles comprise uranium, thorium or plutonium salts.
Patent GB-1368596-A (GB)
Title: Process for the preparation of malic acid
Inventor: WEINROTTER FERDINAND
IPC: C07C51/00
Filed: 1973-06-21
Abstract: 1368596 Preparation of malic acid CHEMIE LINZ AG 21 June 1973 [25 July 1972] 29633/73 Heading C2C A process for the preparation of pure malic acid, suitable for consumption in food and drink, from an aqueous solution obtained by the addition of water to maleic acid and/or fumaric acid under pressure and at an elevated temperature, comprises treating the crude malic acid solution obtained after removing the fumaric acid which has crystallized out, in a liquid-liquid extraction, with an organic solvent which is immiscible with the malic acid solution and possesses good solvent power for maleic acid and fumaric acid, but in which the malic acid is so much less soluble that the distribution coefficient Dc = C water/C solvent of malic acid bears a ratio of at least 4 : 1 to that of maleic acid, and subsequently isolating the malic acid from the purified solution. Particularly suitable solvents are ketones containing 5 to 10 carbon atoms, ethers containing 4, 5 or 6 carbon atoms and esters of acetic acid with aliphatic monoalcphols containing up to 6 carbon atoms. Preferably the extraction is carried out at room temperature. In order to avoid any heavy metals being present in the malic acid it is preferable that malic acid has been obtained by addition of water to maleio acid and/or fumaric acid in an autoclave lined with a layer of polymeric fluorohydrocarbons, e.g. polytetrafluoroethylene.
Patent GB-1521578-A (GB)
Title: Injecting a water in liquid fuel emulsion
IPC: F23D11/16
Filed: 1976-07-16
Abstract: 1521578 Blast furnace operation CENTRE DE RECHERCHES METALLURGIQUESCENTRUM VOOR RESEARCH IN DE METALLURGIE 16 July 1976 [18 July 1975]  29682/76 Heading C7D [Also in Division F4] In a method of injecting water in a liquid fuel emulsion into a space, by means of an injection device, the emulsion is at a temperature of at least 130‹C immediately upstream of the outlets of the device. The emulsion may be at a pressure of 4 to 20 atmospheres depending on its temperature. The emulsion may be injected into a furnace.
Patent GB-978318-A (GB)
Title: Lock for non-trailable track switches
Inventor: BROWN ANDREW
IPC: B61L5/10
Filed: 1962-08-02
Abstract: 978,318. Track switch locks. STANDARD TELEPHONES & CABLES Ltd. Aug. 2, 1962, No. 29726/62. Heading B7N. A lock for non-trailable track switches comprises an indented slide bar 1 coupled to the switch operating mechanism 4, a pair of sleeves 2, 9 positioned beneath the stock rails 5, 7 and a pair of clamps 3, 10 attached respectively to switch blades 6, 8 which are rigidly coupled by connecting bar 11. Fig. 3 shows switch blade 6 locked to stock rail 5 by clamp 3 which is secured in its lower locking position by the bar 1. Movement of the bar to the right, Fig. 4, allows the clamp to rise into the depression 12 in the bar and release switch blade 6 and further movement of the bar moves both switch blades to a position in which blade 8 engages stock rail 7. Further movement of the bar locks the blade to the stock rail by moving clamp 10 into its lower locking position.
Patent GB-445873-A (GB)
Title: Improvements in or relating to fuel injection valves for internal combustion engines
IPC: H01R39/38
Filed: 1934-10-18
Abstract: 445,873. Fuel - admission devices. SCHAEREN, E., 32, Florastrasse, Solothurn, Switzerland. Oct. 18, 1934, No. 29828. Convention date, Oct. 19, 1933. [Class 7 (iii)] The effective annular seating surface of a needle valve c, which is opened by fuel pressure and has a plug d at its lower end, is made of small width by forming an annular recess i between the lower extremity of the seating surface e and the inner end of the injection orifice h.
Patent GB-364577-A (GB)
Title: Improvements in and relating to the control of electric propulsion machinery
IPC: G08B9/06
Filed: 1930-10-06
Abstract: 364,577. Ships' power plant. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, ORCHARD, H., 30, Claremont Road, and JAFFREY, J. A., 135, Murray Road, both in Rugby. Oct. 6, 1930, No. 29927. [Class 114.] A ship's engine room telegraph 5, responding to the movement of the bridge telegraph, moves a nut 7 along a screw 6 so that a switch is closed either at contacts 8 or 9, to energize one of two fields of a motor 1 which is started to move a contact arm over resistance studs 3 in the circuit of the main propulsion equipment. When the arm has copied the movement of the nut 7, the contacts 8 or 9 are opened, and the motor 1 stopped.
Patent GB-629508-A (GB)
Title: Improvements in and relating to circular settling tanks
IPC: B01D21/06
Filed: 1947-11-11
Abstract: 629,508. Gravity separation apparatus. HARTLEY, C. J. Nov. 11, 1947, No. 29933. [Class 111] A circular settling tank having an outlet weir and effluent channel at top water level and rotary scraper apparatus carries one or more auxiliary scraper elements bearing upon one or more of the following parts: the weir top; the bottom and sides of the effluent channel. As shown in Fig. 2 auxiliary scrapers 40, 41, for the bottom of the effluent channel 21 and top of the outlet weir 20 respectively are mounted on spindles 45, 46 respectively and provided with counterweights 43, 50 respectively, the spindles being mounted on a short beam 31 attached to a joist 25 by which the main scraper structure is suspended from a rotating ring 24. The counterweight 50 may be adjusted in position to augment the weight of the scraper 41. As shown in Figs. 6 and 7 scrapers 60 for the sides of the effluent channel 21 are mounted on arms 62 which are attached to spindles 63 which also carry further arms 64 rotated by bellcrank and link mechanism 65, 66, to which counterweights 70 are attached.
Patent GB-797899-A (GB)
Title: Improvements in or relating to protective helmets
IPC: A42B3/10
Filed: 1955-10-20
Abstract: 797,899. Safety helmets. KANGOL HELMETS, Ltd., and MEISNER, S. Oct. 1, 1956 [Oct. 20, 1955] No. 29941/55. Class 63 A safety helment comprising a moulded shell 10 with an internal head harness consisting of loops of webbing 11 connected together by a lace 13 is characterized by having a readily detachable apron 19. The apron is detachable so that it can be easily replaced and will not transmit undue force from the helmet to the wearer in case of an accident. The webbing of the head harness is attached to the shell 10 by rivets 12 and a two part headband 14-15 is attached to the loops 11 near their ends. A strip of foamed plastic material 16 is secured to the shell between it and the headband. The detachable apron 19 is secured to the outer part 14 of the headband by press studs. the female parts 20 of the studs being on the apron and the male parts 21 on the headband 14. Straps 17 and 18 may be attached to the apron 19 instead of to the shell 10, or alternatively they may be secured to the shell 10 by press studs or other fastening means that will not transmit undue force. Specification 777,357 is referred to.
Patent GB-623006-A (GB)
Title: Improvements in or relating to the control of electric power generating systems
IPC: H02J13/00
Filed: 1945-11-09
Abstract: 623,006. Automatic control systems. STANDARD TELEPHONES & CABLES, Ltd., and CHAMBERS, C. H. Nov. 9, 1945, No. 29997. [Class 38 (iv)] In control station equipment for an interconnected electric power generating system, electrical means compare signals received from a remote point, indicative of the generated power at that point, with an allocated power and control the transmission of change of power signals to the remote point. The readings of watt-hour meters associated with turbo-generators at each of two or more power stations are successively transmitted over lines as described in Specification 553,433, [Group XXXVIII], to operate indicators in a remote control station. In known manner the readings are aggregated by a summator at the control station. Also in known manner a regulator at the control station is arranged to be successively connected to permit control of each generator at the power stations, during idle periods of forward transmission of meter readings, over the same lines as for the forward transmission. Control of the generators is by servomotor control of the governors of their prime movers together with control of furnace rate of feed if necessary. In the arrangement described, this control is effected automatically to maintain a desired power output from each generator. In Fig. 2, the D.C. energization of one set of windings of differential relays DR1, DR2 at a control station, associated with generators at two power stations A and B respectively, is controlled by decoders, responsive to meter signals from the generators, which adjust resistances in the relay winding circuits. The other set of relay windings is series-connected across a D.C. source with variable shunt resistances YA, YB, adjusted' so that the energization of a relay winding represents a desired generator output. When the generator outputs have the desired values, each relay is balanced, otherwise an auxiliary relay R or L is operated to send " raise power " or " lower power " signals to correct the generator which has deviated. Rheostat YP serves for setting the total power output while rheostats YA, YB permit variation in relative power output of the generators. Allowance for additional uncontrolled generators may be made.
Patent GB-323820-A (GB)
Title: Improvements relating to handles for tumblers or other vessels
IPC: A47J45/07
Filed: 1928-10-17
Abstract: 323,820. Brown, R. Oct. 17, 1928. Handles, detachable, for flasks, bottles, &c.- One or more flexible bands adapted to encircle the vessel are formed with out-turned ends to enter and to snap into sockets formed in separate grip portion. Figs. 1, 2, show a form where the vessel is provided with two encircling bands a, lying in grooves formed in the vessel, the bent ends a<1> of which bands are engaged within the hollow ends e<1> of the grip portion c which are formed with holes or sockets c<2> with which the out-turned portions a<2> of the ends of the band engage. In this form one end of each band is so out-turned. Fig. 7 shows a vessel provided with a single band fitted with a horizontally-disposed grip member. Fig. 8 shows a band formed in two halves, engaged by a pair of oppositelydisposed horizontal grip members. In such a construction the band may be made continuous through one grip member, or one pair of adjacent ends may be permanently fixed thereto.
Patent GB-339040-A (GB)
Title: Improvements in destructive hydrogenation
Filed: 1929-10-04
Abstract: 339,040. Dean, H. P., and Imperial Chemical Industries, Ltd. Oct. 4, 1929. Hydrogenation, destructive.-In the destructive hydrogenation of liquid carbonaceous materials the hydrogen is passed into the reaction chamber through an indirect heat exchanger surrounded by the material. The heat exchanger may consist of a number of vertical tubes 5, Fig. 1, between headers; the hydrogen pipe on either side of the heat exchanger is covered with heat insulating material 6. The hydrogen pipe 7, Fig. 2, may be bent into a spiral 8. The heat exchanger may be made of, or coated with, catalytic material. Specifications 308,995 and 309,258 are referred to.
Patent GB-808296-A (GB)
Title: Process for the extraction of nucleic acid and for the preparation of the salts thereof
IPC: C12N15/10
Filed: 1956-10-03
Abstract: Nucleic acid is extracted from animal and vegetable materials, e.g. fresh fish milt, by treating the broken-up material with caustic alkali solution, precipitating the alkali metal nucleate by addition of an alcohol, mixing the precipitate with an aqueous suspension of calcium sulphate, heating and filtering the mixture and precipitating substantially pure nucleic acid by addition of a mixture of an alcohol and hydrochloric acid to the filtrate.  The mixture of the precipitate and calcium sulphate may be first hot-filtered and then cold filtered.  The nucleic acid may be suspended in alcohol and mixed with a solution of a metal salt in alcohol to form, by double decomposition, the nucleate of the metal employed.  The alcohols used are lower aliphatic alcohols containing not more than 4 carbon atoms. Solutions of sodium, manganese, copper or iron sulphates, or calcium, magnesium or cobalt chlorides are specified.
Patent GB-1380976-A (GB)
Title: Preparation of organic carbonyl compounds
IPC: C07C50/04
Filed: 1972-06-28
Abstract: 1380976 Preparation of organic carbonyl Compounds ROUSSEL UCLAF 28 June 1972 [1 July 1971] 30207/72 Headings C2C and C2U Organic carbonyl group containing compounds are prepared by oxidizing a compound containing an oxidizable hydroxy group in the liquid phase by reaction with silver silicate. Starting from their respective hydroxy derivatives, the following compounds are prepared in the examples: 9-oxo-xanthene; 1,2- dioxo - 1,2 - bis - (p - methoxyphenyl) - ethane; 1,2 - dioxo - 1,2 - bis - (phenyl) - ethane; 3,4- methlenedioxy-benzaldehyde; benzoquinone; naphtho - 1,4 - quinone; 3 - methoxy - estra- 1,3,5 - trien - 17 - one; 3 - oxo - cholestane; 5# - androstan - 3 - one; and 5α - pregnane- 3,20-dione.
Patent GB-360154-A (GB)
Title: Improvements in and relating to supports or containers for fragile articles and the like
IPC: B65D5/50
Filed: 1930-10-09
Abstract: 360,154. Containers for thermionic valves &c. ROBINSON, Ltd., E. S. & A., 1, Redcliffe Street, and COOPER, A. B., 1, Chantry Road, Clifton, both in Bristol. Oct. 9, 1930, No. 30294. [Class 18.] A collapsable container for fragile articles such as electric light globes, thermionic valves, or bottles, adapted to be contained within an outer casing is made from a blank shape and creased as shown in Fig. 1, the central parts 11 forming a pyramidal section with lateral fins 13 as shown in Fig. 2, and the outer parts 11 and the parts 14, 15 forming jaws which can close to form a pyramidal cover, the parts 12, 16 forming fins which are actuated by the walls of the outer container to press the jaws together. Specifications 314,931 and 327,167, [both in Class 18, Boxes &c.], are referred to.
Patent GB-438825-A (GB)
Title: Improvements in hydraulic transmissions
IPC: F16D33/20
Filed: 1934-10-23
Abstract: 438,825. Hydraulic transmission of power. AKTIEBOLAGET LJUNGSTROMS ANGTURBIN, 32, Kungsgatan, Stockholm. Oct. 23, 1934, Nos. 30412 and 30413. Convention dates, May 8 and July 17. [Class 69 (ii)] In a hydraulic transmission means employing pump blades fixed in a rotating casing, pivoted control blades in front of the intake side of the pump are adjustable from outside the casing. In one form, the spindles of the blades 6, Fig. 1, are each provided with a rotary piston moved in a cylinder 16 by pressure liquid admitted at 26, and with a pinion 29 meshing with a common toothed wheel 30 acted on by return springs. In another form, the spindles each have a pinion 44, Fig. 3, adapted to be turned by axial displacement of a toothed wheel 45, which is effected from a shaft 54 through a lever 49 having a toothed segment 53.
Patent GB-854594-A (GB)
Title: Process and device for the electrical detection of aerosols in gases
IPC: G01N27/66
Filed: 1957-09-30
Abstract: 854,594. Cold-cathode tubes; ionization chambers. CERBERUS G.m.b.H. Sept. 30, 1957 [Jan. 25, 1957], No. 30523/57. Class 39(1). [Also in Group XXXVI] Apparatus for testing gases for aerosol content comprises an ionization chamber having means for ionizing gas to be tested in a restricted region adjacent one electrode of said chamber and spaced from the other electrode thereof whereby a single-pole current flow is produced in said chamber when a potential difference is applied across said electrodes. Such a chamber is more sensitive to the presence of aerosols than one in which ionization, produced for example by radioactive material, is not limited in extent so that both positive and negative charge carriers are present throughout the volume of the chamber. A device for detecting combustion gases is described (see Group XXXVI) in which a " measuring" chamber is connected in series with a comparison chamber operating at saturation across a coldcathode triode relay, the trigger electrode of which is connected to the anode of the measuring chamber. If combustion gases enter the measuring chamber the triode is fired and energizes a relay which operates an alarm. The two ionization chambers and the triode may be combined in the unit shown, in which the measuring chamber 4 comprises a cathode 1 in the form of a fine-mesh grid capable of being penetrated by aerosols, a rod anode 2, and a ring 3 covered on one side with a radioactive preparation so that the radiation which causes ionization can act only towards the electrode 1. The comparison chamber 5 comprises a cathode 6, anode 7 and a radiation source 8, the radiation from which is not restricted. The triode 9 comprises a cathode 10, trigger electrode 11 and anode 12. A cathode connecting pin 19 and anode connecting pin 20 are mounted on an insulator 18. A measuring chamber as described may be used for isolated or continuous measurement or may be connected to any indicating device, and the voltage of the measuring chamber may be adapted to the indicating device by shutters for regulating the intensity of radiation, by displacement of the radiation source in order to alter the ionization region, or by geometrical alteration of the chamber in order to affect the field.