baber/WOPTO huggingface dataset:
Patent GB-871494-A (GB)
Title: Process for the separation of organic compounds
IPC: B01D15/04
Filed: 1956-08-23
Abstract: <PICT:0871494/III/1> Mixtures of organic compounds are separated into their components by feeding the mixture into a column through which passes an eluent gas in counter current with a liquid solvent, there being applied a temperature gradient which rises in the direction of the flow of solvent.  The rate of flow of solvent, gas, or liquid mixture, or the temperature, is regulated whereby one or more components rise to the top, or fall to the bottom of the column, or are drawn off as a side stream.  Extraction conditions are then changed whereby a further component is separated.  Preferably the column contains an inert solid presenting a large surface area to the liquids.  The mixture to be separated may comprise organic components of close boiling range, e.g. hydrocarbons, or an azeotropic mixture e.g. water and alcohol, petroleum ethers, or essential oils.  As liquid solvent there may be used paraffins, esters, ethers, glycols, nitriles or silicones; as gaseous eluent, air, steam, hydrogen, flue gas, carbon monoxide, carbon dioxide, or methane which is not soluble in the liquid mixture or the solvent.  The process may be used to control chemical processes, in which the effluents are analysed by chromatography.  In a suitable apparatus, a packed column containing e.g. glass beads, or a porous body, is heated externally to provide a temperature gradient increasing from top to bottom.  The eluent gas, e.g. air, is admitted through a line 1 at the bottom and emerges at 2 at p  the top, and the solvent, e.g. kerosene, flows downwards from inlet 3 to discharge 4.  A feedstock is admitted at 5 and side-streams are withdrawn at 6 and 7.  Assuming four components, C1 C2 C3 C4 are to be separated, flow rates and temperatures are adjusted so that C1 and C2 ascend, C3 C4 descend the column; C1 flows out at the top with the eluent, but C2 is held back, by downflowing solvent.  Similarly C4 leaves at the bottom but C3 is held.  C2 forms a concentrate at SA, and C3 at SB, and are removed at lines 6, 7 respectively.  The gas or solvent component of the fraction removed at 6 is returned through 8 or 9 respectively and similarly for the extract at 7, replacement is made through 10 and 11.  Applying the process to a three-component mixture of propane n-butane and iso-butane, there was produced at the top pure propane, at the bottom isobutane containing some propane, and a single fraction held in the column mainly n-butane.  Specifications 871,492, 871,493, 871,495 and 871,496 also are referred to.
Patent GB-370894-A (GB)
Title: Improvements in the manufacture and production of molybdenum carbonyl
IPC: C01G39/00
Filed: 1930-12-03
Abstract: Molybdenum and tungsten carbonyls are prepared by the action of carbon monoxide under pressure at a temperature of at least 210 DEG C., preferably at least 225 DEG  C., on molybdenum and tungsten or materials containing these metals in the metallic state, preferably those which have been obtained by a reducing treatment in the presence of copper or its compounds.  Decomposition of the carbon monoxide is prevented by mixing therewith, or with the solid initial materials, such substances as sulphur compounds, e.g. hydrogen-sulphide, sulphur dioxide, carbon oxysulphide, carbon disulphide, mercaptans, copper or iron sulphate, sodium sulphide, or other metal sulphates or sulphides, elementary sulphur, or arsenic or phosphorus or their compounds.  The metal carbonyls can be separated from the excess carbon monoxide by cooling or washing, for example with benzene or ether, and the carbonyls of molybdenum and tungsten separated from those of other metals which may be present by sublimation or crystallization. The process is suitable for recovering molybdenum and tungsten from their ores or other materials which are reduced to give the free metals before treating with carbon monoxide.  By thermal decomposition of the carbonyls, the metals themselves, or, if other metals are present, alloys thereof, are obtained.  According to Examples, molybdic or tungstic acid is reduced, sometimes in the presence of copper, by hydrogen at 800 DEG C., and the product treated with carbon monoxide at a pressure of 200 atmospheres and at temperatures between 225-300 DEG  C. Specifications 327,956, [Class 1 (ii), Inorganic compounds, other than &c.], and 367,481 are referred to.ALSO:Molybdenum and tungsten carbonyls are prepared by the action of carbon monoxide under pressure at a temperature of at least 210 DEG  C., preferably at least 225 DEG  C., on molybdenum and tungsten or materials containing these metals in the metallic state, preferably those which have been obtained by a reducing treatment in the presence of copper or its compounds.  Substances which prevent decomposition of the carbon monoxide may be mixed therewith, or with the solid initial materials. The metal carbonyls can be separated from the excess carbon monoxide by cooling, or washing for example with benzene or ether, and the carbonyls of molybdenum and tungsten separated from those of other metals which may be present by sublimation or crystallization. The process is suitable for recovering molybdenum and tungsten from their ores or other materials which are reduced to give the free metals before treating with carbon monoxide.  By thermal decomposition of the carbonyls, molybdenum or tungsten are obtained in compact, powder, or sponge form.  The metallic powders may be sintered to obtain alloys if other metals are present, or used to prepare alloys by the fusion method. Specifications 327,956, [Class 1 (ii), Inorganic compounds, other than &c.], and 367,481 are referred to.
Patent GB-1197563-A (GB)
Title: Apparatus for Binding Flexible Sheets
Inventor: POLE KENNETH ERNEST
IPC: B42C9/00
Filed: 1966-08-16
Abstract: 1,197,563. Bookbinding. CAXTONIA Ltd. 2 Nov., 1967 [16 Aug., 1966], No. 36555/66. Heading B6A. Apparatus for binding flexible sheets into a pad by applying glue to the spine of the aligned sheets comprises a pair of frame members 1, 2 supporting bearings 6 whose common axis is inclined at a compound angle to the horizontal for pivotal mounting of a stacking plate 5 which, when in its sheet stack-receiving position abuts stops 7 and, is disposed at right angles to a first, fixed sheet registering plate 14 in turn disposed at right angles to a second adjustable sheet registering plate 15. Due to the compound inclination of the stacking plate 5a stack of sheets is aligned against the sheetregistering plates under gravity and the aligned stack is clamped along one marginal edge between clamp rails 24, 25 releasably supported in bushings 21 which depend from the stacking plate, subsequently pivoted upwardly into abutment with stops 8 on the frame members 1, 2 to present the marginal edge opposite glue applicators (not shown).
Patent GB-833000-A (GB)
Title: Improvements in or relating to printed circuits
IPC: H05K3/10
Filed: 1956-11-30
Abstract: A printed circuit comprising an electrically conductive pattern on an insulating base panel is made by coating the panel with an adhesive, applying metal powder to the panel so that it adheres thereto in the configuration of the desired pattern and then applying a continuous coating of solder to the pattern by dipping the panel in a solder bath: In one embodiment the adhesive, which may be an uncured resin, is applied in the desired pattern, metal powder is dusted on to the surface of the panel, the excess powder is shaken off and the resin is then cured, e.g. by heating.  In a second embodiment, the base is uniformly coated with a synthetic resin adhesive which has been dried.  The metal powder is dusted on to the panel which is then passed between heated rollers carrying the desired circuit pattern whereby the powder is made to adhere to the panel in the desired pattern.  Excess powder is then shaken off.  In both processes, the pattern of metal powder, which may not be electrically continuous, is given continuity by a subsequent dipping in a solder bath.  The panel may be provided with holes which receive the leads of components which are to form part of the circuit; these are attached to the circuit by the solder applied during the step of dipping in a solder bath.
Patent GB-1492804-A (GB)
Title: Box pallets and their method of construction
IPC: B65D90/00
Filed: 1974-08-21
Abstract: 1492804 Box pellets LANCASHIRE BOX CO Ltd and A SOUTHERN 3 Feb 1975 [21 Aug 1974] 36806/74 Heading B8H A box pallet comprises a container body 12 and two skids 10 each having a base 13 and a load support member 14 spaced from the base by spacers 15 wherein the skids are secured to the base 11 of the container body by a layer of adhesive 16 applied to the load support member and initially covered by a protective layer 17.
Patent GB-1280425-A (GB)
Title: Mechanism for tubing tube plates to form tube nests
Inventor: FREYER WOLFGANG
IPC: B21D53/08
Filed: 1970-07-30
Abstract: 1280425 Making heat exchangers MASCHINENUND APPARATEBAU GRIMMA VEB 30 July 1970 36930/70 Heading B3A Mechanism for the tubing of tube nest heat exchangers comprises a rotatable main shaft 3 having at each end a retaining shield 4, for holding a tube plate, and having receptors 5, for holding guide plates, which are axially adjustable along the main shaft and radially locked between the two retaining shields 4, a vertically adjustable shaft 8 having pivoted guide bands 7, a compound slide 10, and a tube insertion mechanism 11. The retaining shields 4 hold two tube plates adjacent one another so that after tubing is completed on one heat exchanger the shaft 3 is rotated through 180 degrees and the tubes fastened in the tube plates while a new tubing operation is being effected on the other side.
Patent GB-1363920-A (GB)
Title: Digital decoding systems
IPC: G11B20/14
Filed: 1971-08-05
Abstract: 1363920 Decoding three frequency coded data HONEYWELL INFORMATION SYSTEMS Inc 5 Aug 1971 [23 Nov 1970] 36950/71 Heading G4C A decoder for decoding an information signal read from, e.g. a magnetic disc store, the signal being of the form where a transition in the centre of a bit cell represents binary 1 and a transition between two bit cells indicates that both cells represent binary 0, includes a means including a phase-locked loop for delineating a window in the middle of each bit cell, a means responsive to the window for generating a signal when a transition occurs within the window, and a means responsive to the signal for generating a binary output signal. In an embodiment the waveform read from the disc (or tape or drum) is filtered to remove noise and fed to a peak detector which produces pulses at the positive and negative peaks of the waveform. The output of the peak detector is fed to the decoder and to a phase-looked loop oscillator whose output has a frequency twice the bit rate and is also fed to the decoder. The decoder itself, Fig. 1B, comprises six trigger flip-flops 115, 125, 135, 155, 165, and 175 and a number of gates. In operation the peak detector output is applied to AND gate 101 via a delay 110 which is set so that the leading edges of peak detector pulses coincide with the trailing edges of the phase-locked loop output pulses, a preamble of binary ones being used for initial synchronization. A "clock synch." signal goes high when the phase-locked loop has synchronized with a data preamble of binary ones. Initially both flipflops 115 and 125 have their outputs A and Q4 low so that when the first pulse from the peak detector appears at the input to AND 101 the gate will conduct and flip-flops 115 and 125 will switch, i.e. A and Q4 high. AND 101 is thus blocked and remains so for the rest of the read cycle. Pulses from the phase-locked loop will enable AND 102 and will pass to flip-flop 115 and 125. Flip-flop 115 switches but flip-flop 125 does not (due to the arrangement of their other inputs). The output A of flip-flop 115 at terminal 120 is the window in the middle of each bit cell. Flip-flop 135 receives the phase-locked loop output at input 140 and is connected as a shift register so that data derived from its J and K inputs appears at its outputs at the trailing edge of a phase locked loop pulse. The resulting output B is in fact the same as A but delayed one quarter of a bit cell. Gates 145 and 181 produce outputs of A.B and A + B respectively. The C output of flip-flop 175 goes high when A is high and a pulse from the peak detector is present at input 178. The resulting C output of flip-flop 175 is applied to both inputs of flip-flop 165 and a signal A is applied to input 170 of flip-flop 165. Thus output 166 goes high as A goes from low to high if C is high and goes low as A goes from low to high if C is low. The output thus provides an NRZ signal decoded from the peak detector output and the output of AND 145, by virtue of the connection of the NRZ output to flip-flop 155, acts on a data clock signal.
Patent GB-525190-A (GB)
Title: Resin emulsions
IPC: C08J3/07
Filed: 1938-12-20
Abstract: 525,190. Synthetic resin emulsions. TRIGGS, 'W. W. (Rohm & Haas Co.). Dec. 20, 1938, No. 37004. [Class 1 (i)] [Also in Group IV]. A stable aqueous emulsion is prepared by dispersing an alcoholic solution of a waterinsoluble urea formaldehyde resin that has been condensed in the presence of an alcohol in an aqueous solution of a water-soluble cellulose ether and a substituted ammonium salt containing an aliphatic group of more than nine carbon atoms. Cellulose ethers specified are methyl, ethyl and hydroxyethyl cellulose, substituted ammonium salts specified are dimethyl phenyl cetyl ammonium chloride, dimethyl benzyl cetyl ammonium sulphate, dimethyl benzyl oleyl ammonium chloride, dimethyl benzyl lauryl ammonium chloride, diethyl methallyl cetyl ammonium chloride, diethyl benzyl lauryl ammonium phosphate, dimethyl benzyl cetyl ammonium acetate, oleate or stearate and dimethyl cetyl amine hydrochloride. Other emulsifying agents referred to include ammoniacal casein and sulphonated oils. The resin may be prepared as described in Specifications 256,248, [Class 2 (iii)], 498,043, 511,087, [both in Group IV], and U.S.A: Specification 2,019,865. In an example, a urea-formaldehyde resin, prepared in the presence of butanol, is dispersed in an aqueous solution of methyl cellulose, saturated with butanol, and dimethyl cetyl benzyl ammonium chloride. The emulsion may be used for the preparation of emulsion paints, for treating textiles and for blending with other film forming materials, e.g. cellulose derivatives, oil modified alkyd resins, acrylic and methacrylic ester polymers. Specifications 455,253 and 512,187, [both in Group IV], also are referred to.
Patent GB-302659-A (GB)
Title: Titanium pigment and paint forming durable outside coating
IPC: C09C1/00
Filed: 1928-12-14
Abstract: 302,659. Soc. de Produits Chimiques des Terres Rares, (Assignees of Verein f³r Chemische und Metallurgische Produktion Generaldirektion). Dec. 19, 1927, [Convention date]. Pigments. - A process of making composite pigments, or paints containing same, comprises associating titanium dioxide separated by hydrolysis from sulphuric acid solutions and dehydrated by heat, with a sufficient quantity of barium carbonate to provide a content of more than 10 per cent and preferably 10-30 per cent of barium carbonate in the resulting composite pigment. Precipitated barium carbonate is preferably employed and is ground before or after mixing with the pigment. To form paints the composite pigments, especially when using unground barium carbonate, may be ground with just more than sufficient linseed oil or other medium to form a paste. The Specification as open to inspection under Sect. 91 (3) (a) describes also the addition of barium carbonate, by adding it in amounts more than sufficient to neutralize acid remaining in the dehydrated titanium dioxide. This subjectmatter does not appear in the Specification as accepted.
Patent GB-1535875-A (GB)
Title: Electrical mounting means
IPC: H01H13/04
Filed: 1977-09-07
Abstract: 1535875 Mounting contacts MIDLAND ELECTRIC MFG CO Ltd 7 Sept 1977 [7 Sept 1976] 37041/76 Heading H1N An electrical device such as a switch contact housing 25, Fig. 2, is detachably secured to a contactor housing (not shown) by a dovetail tenon 36 which is inserted into recess in the contactor housing and slid into locking engagement with a mating mortice. A screw 44 may be inserted through a threaded hole 43, Fig. 3, to engage a blind hole in the contactor to prevent relative movement between the mortice and tenon. A projection 34 on the contact carrier may engage a recess (23), Fig. 8 (not shown), in the contactor contact carrier (20).
Patent GB-774969-A (GB)
Title: Improvements in gas filter frames
IPC: B01D46/10
Filed: 1955-12-28
Abstract: 774,969. Gas filters. AIR-MAZE CORPORATION. Dec. 28, 1955 [Jan. 5, 1955]. No. 37090/55. Class 8(2) Gas filter medium e.g. a plurality of layers 17, Fig. 1, of oil-coated corrugated wire mesh is held in an open-ended rectangular metal frame having imperforate sides 10 each comprising a central web 11 Fig. 5, bounded by flanges 12 which first extend outwardly of the web plane and then inwardly so as to terminate inwardly of said plane to provide reinforcing channels; the distal ends of webs of adjacent sides 11 being in abutment and the flanges thereof overlapping and secured together at each corner, e.g. by spot welding. Each web 11 is formed from a blank strip having notches 12b, Fig. 6 and extensions 12a which when the strip-has been bent along lines 13, 14 to form the flanges 12, provide the overlapping corners. Pressed-in tongues 21<SP>1</SP> serve to hold filter retaining grills 19. The four sides may also be formed from a single strip. In a modification the distal ends of the web portion of each side has a tongue which is bolted to that of the web of an adjacent side.
Patent GB-1380459-A (GB)
Title: Induction heating devices
IPC: H05B6/02
Filed: 1972-08-09
Abstract: 1380459 Induction heater CARL CANZLER 9 Aug 1972 [13 Aug 1971] 37142/72 Heading H5H An induction heater comprises a multiturn aluminium strip winding 2, in which coolant passages 5 are provided between adjacent turns or groups of turns to which coolant, e.g. air is supplied. As shown, the heater is insulated by insulation 3 from the cylindrical wall 1 of the apparatus, e.g. chemical apparatus, to be heated. The winding 2 is also insulated from a cylindrical surrounding ferromagnetic steel jacket 4 by further insulation 3. As shown, the winding 2 has an insulating coating of aluminium oxide and is divided into three concentric groups of turns separated by air passages 5, insulating spacers 10 being provided between the groups of turns. Air is supplied to the winding 2 by apertures 9 in end rings mounting the winding between the insulating layers 3. In Fig. 3 (not shown) two groups of three turns are separated from one another by a layer of insulation. Each group of turns has a corrugated middle turn to define air passages between the middle turn and the inner and outer turns. In Fig. 4 (not shown) alternate turns are corrugated to provide the coolant passages.
Patent GB-629547-A (GB)
Title: Improvements in double row roller bearings
IPC: F16C33/54
Filed: 1946-12-18
Abstract: 629,547. Roller cages. WALLGREN, A. G. F. Dec. 18, 1946, No. 37245. Convention date, Dec. 18, 1945. [Class 12 (i)] In a double - row conical - roller bearing with central guide rib, each row has a cage consisting of spacing members having inner parts of increased width to prevent retraction and outer parts united to a ring member, all the inner ends being unconnected with each other. Each spacing member 28, Fig. 1, has a flanged head 32 which bears against the ends of adjacent rollers 14 and may be extended at 46 to engage the guide rib 18. The outer ends 40 pass through recesses in ring 30 and are bent down and welded to the ring. The ring 30 may ride on a part 44 of the inner race ring 10 and has recesses 45 for introducing grease. The members 28 may have bent flaps 36 engaging the rollers. In a modification, Fig. 6, each spacer consists of a steel rod 48 with bronze bushes 50 secured by depressions 51. Plates 52, 54 are welded to opposite ends of the rods, plates 54 being then welded in depressions in a ring 56. In a further form, plates 54 are dispensed with and the rods 48 have split ends forming ears which pass through ring 56 and are then bent and welded thereto. Specification 625,028 is referred to.
Patent GB-324481-A (GB)
Title: Process and apparatus for the treatment of gas or a mixture of gas and vapour in thepresence of catalytic agents and for the reactivation of such agents
IPC: B01J8/02
Filed: 1928-12-18
Abstract: 324,481. Compagnie Internationale pour la Fabrication des Essences et Petroles. Oct. 24, 1928, [Convention date]. Catalytic apparatus. -In apparatus for the treatment of gases with catalytic materials and for the reactuation of such catalytic materials, the gases are admitted into the material C through a series of perforated annular nozzles E fed by pipes G branched outside the chamber from an inlet trunk F. In the apparatus shown, reactivating gases are admitted through the pipes G, and an inlet B and outlet B<1> are provided for gases which are to be purified by the material C. Specification 298,236, [Class 55 (ii), Gas manufacture &c.], is referred to.
Patent GB-967923-A (GB)
Title: Improvements in the emulsification of hydrocarbon binding agents
IPC: C09K23/00
Filed: 1962-10-02
Abstract: Mixtures of monoalkyl and dialkylphosphoric acids, wherein the alkyl groups contain 12 to 22 carbon atoms, have use in the preparation of emulsions of hydrocarbon binding agents (see Division B1). A suitable monoalkyl phosphoric acid is prepared by adding phosphoric acid and phosphoric anhydride in small quantities at a time to a C16/18 fatty alcohol maintained at 80 DEG C. whereby 1 mol of P2O5 and 1 mol of H3PO4 is caused to react with 3 mols of the alcohol. The crude product is dissolved in ethyl alcohol at 60 DEG C.; the solution is cooled to 10 DEG C., and filtered. Ethyl alcohol is distilled from the filtrate whereby the purified mono C16/18 acid-ester is obtained. A suitable dialkylphosphoric acid is obtained by reacting 1 mol of phosphoric anhydride with 4 mols of C16/18 fatty alcohol The crude product is recrystallized from ethyl alcohol.ALSO:An aqueous emulsion of a hydrocarbon binding agent, e.g bitumen or a petroleum resin, is prepared by mixing the binding agent with water in the presence of a mixture of monoalkyl and dialkyl phosphoric acids, the alkyl groups of which preferably contain 12-22 carbon atoms, and such a proportion of an alkali that the emulsion is neutral or moderately alkaline, i.e. pH 6-10.  Examples are given which relate to the preparation of suitable emulsions for coating flint (2-10 mm.) and calcites (3-8 mm.).  The emulsions can also be used as anti-corrosive paint for sheet metal coatings which have subsequently to be treated with waterproofing coatings, or for tubes that have to be buried after being coated.  Paper, cardboard and other fibrous materials are made resistant to moisture and grease by coating the material with an aqueous emulsion of a petroleum resin using the emulsifying agent specified above.  The petroleum resins are obtained by distilling tars from the steam-cracking of certain petroleum fractions, or by polymerizing olefins and diolefins. Fibres may be applied to a metal surface using the emulsion as adhesive.
Patent GB-985673-A (GB)
Title: Switching arrangement for the indication of numerical values comprising a counting system of bistable electric circuits and a decadic indicator tube
Inventor: SCHURIG ERICH
IPC: H03K21/08
Filed: 1961-10-19
Abstract: 985, 673. Electric selective signalling systems. M. GRUNDIG, [trading as GRUNDIG ELECTROMECHANISCHE VERSUCHSANSTALT]. Oct. 19, 1961, No.37571/61. Heading G4H. A digit-indicating tube 11 is controlled via a register of tubes 14-23 from a transistor counter 10, each control pulse on a lead 45 causing the count reached to be registered in tubes 14-23 and thus indicated, the firing of any register tube extinguishing any previously conducting tube.