baber/WOPTO huggingface dataset:
Patent GB-339882-A (GB)
Title: Process for the manufacture of derivatives of ª‡-oxy-allyl-alcohol (propene-2.3-diol)
IPC: C07C33/025
Filed: 1930-02-17
Abstract: 339,882. Schering-Kahlbaum Akt.- Ges. Feb. 23, 1929, [Convention date]. Allyl alcohol derivatives; dioxyacetone,- glycerol aldehyde.-The condensation products of glycerol monohalogenhydrins with aliphatic ketones such as acetone are distilled over alkaline, media, whereby hydrogen halide is split off and the corresponding derivatives of a - oxyallyl alcohol are obtained. The same products are obtained similarly from compounds of aliphatic ketones with other monoesters of glycerol, e.g. the benzene- or toluene-sulphonate. In an example, the acetone compound of glycerol achlorhydrin is distilled over caustic lime or in the presence of an organic base, e.g. quinoline or diethylaniline; the condensate is the acetone compound of a-oxyallyl alcohol. The products are converted into dioxyacetone by oxidation, e.g. with perbenzoic acid. The Specification as open to inspection under Sect. 91 (3) (a) states that the products are initial materials for making glycerol aldehyde. This subject-matter does not appear in the Specification as accepted.
Patent GB-1421085-A (GB)
Title: Sphere handling apparatus
IPC: F16L55/46
Filed: 1974-02-05
Abstract: 1421085 Pipe-line pig launcher/receiver M H GROVE & J M E GROVE [trading as M & J DEVELOPMENT CO] 5 Feb 1974 [20 Feb 1973] 05315/74 Heading F2N Apparatus for receiving, Fig. 5 (not shown), or, as shown, launching a pipe-line sphere 46 includes a generally cylindrical housing 10 having a removable cover 11, a sealing assembly 21 movable by piston/cylinder assembly 24 between the position shown, where it sealingly engages surface 12 to isolate section 10a from section 1Oc and a withdrawn position (not shown) in which movement of the sphere between sections 10a and 10c is permitted, a lateral branch 14 for connecting section 10a to the pipeline, and a valve-controlled by-pass 48, 48a for equalizing the pressures in sections 10a and 10c and for accommodating the fluid flow between these sections which is occasioned by movement of assembly 21. Launching.-From the position shown, bypass 48 is opened to equalize the pressure on either side of the sealing assembly 21, which is then moved to its withdrawn position. The sphere moves under gravity into pipe-line 15. Assembly 21 is then returned to the position shown. By-pass 48 is closed, and a vent 52 and a line 53 are opened to drain section 10c. In moving assembly 21 into its sealing position, its two annular sealing lips are flexed, thus reducing the fluid pressure therebetween. This reduced pressure is indicated at 50 and should it rise to the line pressure, indicated at 51, then a leakage past assembly 21 must be assumed. If no leakage is indicated, cover 11 can be opened for loading another sphere 46 by means of hoist 44, 43 and suction head 47. The pressures at 50 and 51 may be applied to a differential pressure switch (Fig. 5) which lights appropriate lamps and automatically retains cover 11 locked closed if the pressure differential falls below a certain level. Receiving.-The apparatus shown in Fig. 1, excepting the hoist, is re-orientated so that branch 14 connects upwardly to the pipe-line and section 10a is higher than section 10c, the inclined position of housing 10 being preserved. Bars in the pipe-line divert a sphere into branch 14 where it is halted by a bar carried by and movable with the sealing assembly. On withdrawal of the latter, the sphere moves under gravity into section 10a and thence into section 10c. After the sealing check procedure outlined above, cover 11 is opened to expel the sphere.
Patent GB-1060433-A (GB)
Title: Improvements in or relating to devices for cooling and folding tubular films of synthetic plastics material
IPC: B29C48/90
Filed: 1964-02-07
Abstract: 1,060,433. Tubular films. REIFENHUSER G.m.b.H. Feb. 7, 1964 [Feb. 11, 1963], No. 5319/64. Heading B5B. Apparatus for cooling continuous extruded air-inflated tubular films of thermoplastic resinous material comprises a liquid-cooled calibrating and supporting tube member attached to the extrusion nozzle and cooling the film passing therethrough by direct contact and, connected to the liquid-cooled member, an aircooled calibrating and supporting tube member, spaced apart from the film so that an annular air current passes between the film and the inner wall of the air-cooled member. A housing consisting of a plurality of intercommunicating concentric cylinders surrounding the film may be located between the liquid-cooled and aircooled tube members. In one embodiment (Fig. 1, not shown), a tubular film extruded from annular nozzle 1 is inflated and expanded to contact a calibrating tube 3 which is connected to nozzle 1 and which is cooled by liquid flowing in ducts 4. The film then passes through an air-cooled calibrating member comprising a cylinder 16, spaced apart from the film so that an air-cushion exists in space 9 between the film and cylinder 16. The aircooled member 16 is connected to the liquidcooled member 3 by a labyrinthine housing comprising interconnected cylinders 17-20, to which air is supplied by three inlets 11. Inner cylinder 20 may lie against the film. In a further embodiment, additional cooling is provided by an annular trough, attached to the top of the air-cooled member, having radially arranged nozzles spraying liquid on to the film. The calibrating and supporting tube members may be of any cross-section and may taper in the direction of extrusion to compensate for the contraction of the cooling film.
Patent GB-1503731-A (GB)
Title: Liquid sampling apparatus
IPC: G01N1/18
Filed: 1975-02-07
Abstract: 1503731 Liquid metering and sampling apparatus; bottles; bottling E SINGER 7 Feb 1975 [7 Feb 1974] 5393/75 Addition to 1361161 Headings B8N B8D and B8T An apparatus for metering and sampling a liquid which may have solids therein comprises a metering chamber 18 into which a volume of liquid is drawn and expelled through a distribution spout 118 to successive bottles 95 of a bottle set. The metering chamber 18 has electrodes 42 which determine the volume of liquid drawn into the chamber and a filling tube 25 whose position is adjustable. The upperelectrode 42 may be adjustable and can be used in conjunction with an external coil to stop the chamber filling cycle. In operation the liquid is drawn into the chamber by a suction pump 56 after the chamber has been blown through to remove the remains of previous samples. The suction is applied until the liquid level reaches the upper electrode 42 whereupon valves 49, 50 are reversed to apply pressure to the chamber to effect the liquid until its level is below that of the tube 25. The predetermined volume is then discharged through a pinch valve 39 operated by a solenoid 40. The bottles 95, Fig. 3, are mounted in a circular array on a tray 96 with their openings 104 under the path of the spout 118. The spout 118 is mounted on an indexable disc 124 which is held in position by a shaped spring 150, Fig. 10. Each bottle may be filled with more than one metered amount.
Patent GB-920953-A (GB)
Title: An improvements in a shot-gun lock of the hammerless type
IPC: F41A19/52
Filed: 1961-02-14
Abstract: 920,953. Sporting guns. K. H. HARDFALK. Feb. 14, 1961, No. 5410/61. Class 119. A drop-down barrel sporting gun of the hammerless type has a tumbler 6 and cocking- piece 8 both pivotable about a shaft 5, the tumbler 6 being urged by a spring 22 to strike against a striker pin 3 and having front and rear bents 13, 14 engageable by a trigger sear 18, the arrangement being such that when the tumbler 6 is cocked, the sear 18 engages the front bent 13 whereas after firing the sear engages the rear bent 14 so that the striker face of the tumbler is at a small distance (a few millimeters) from the rear end of the striker pin 3. The tumbler 6 and cocking piece 8 are urged apart by a spring 25 and engage each other by means of abutment faces 10, 11.
Patent GB-126100-A (GB)
Title: Improvements in the Manufacture of Reinforced Concrete Structures.
Inventor: BOLTON FREDERICK
IPC: E04C3/22
Filed: 1918-03-28
Abstract: 126,100. Bolton, F. March 28, 1918. Reinforced-concrete beams; reinforced blockwork beams.-Trough-shaped blocks A, Figs. 1 and 2, are held in alinement bv a tie-rod D with terminal clamping-means, and the channelled beam thus formed is filled with concrete E. An arched beam may be made as shown in Fig. 4.
Patent GB-1479851-A (GB)
Title: Chemical process
IPC: A61P35/00
Filed: 1975-02-10
Abstract: 1479851 Ion-exchange MERCK & CO Inc 10 Feb 1975 [15 Feb 1974] 5572/75 Heading B1J [Also in Division C3] Pyrogenic material is removed from an aqueous solution by adjusting its ionic strength to 0.1 to 0.2 molar at pH 6-10 and passing the solution through a column of a basic anion exchange resin, whereby the pyrogens are irreversibly adsorbed and pyrogen-free aqueous solution is displaced from the column. The method finds particular application on the removal of pyrogenic materials from L-asparaginase at pH 7.0-7.5 over a column of diethylaminoethyl dextran gel.
Patent GB-1160463-A (GB)
Title: Improvements in or relating to the Manufacture of Crystalline Zeolites.
IPC: C02F1/52
Filed: 1967-02-06
Abstract: 1,160,463. Zeolites. L'AIR LIQUIDE SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE. 6 Feb., 1967 [14 Feb., 1966], No. 5650/67. Heading C1A. A crystalline synthetic faujasite-type zeolite is prepared by suspending an amorphous alkali metal aluminosilicate in water, adjusting the pH to at least 13 and heating under autogeneous pressure for sufficient time and at such a temperature that the required crystalline product is obtained, the suspension having molar ratios SiO 2  : Al 2 O 3  = 2À3-4 (preferably 2À5-3À5) and M 2 O: Al 2 O 3  (M # alkali metal) = 1.2 or greater (preferably 3-6). Heating may be at 100‹-160‹ C. for at least 4 hours in an autoclave and the ratio H 2 O : M 2 O in the suspension may be 10-300. The amorphous aluminosilicate may be precipitated from mixed solutions of alkali metal silicate, e.g. sodium metasilicate, and aluminium salt, e.g. sulphate, nitrate, chloride, oxychloride and may be suspended in caustic soda solution, reaction than being effected. In Examples, 4 hours heating at 100‹ C. gives a 70% yield of faujasitetype zeolite, complete conversion being obtained after 112 hours. X-ray diffraction data is given for the zeolites prepared.
Patent GB-886338-A (GB)
Title: Process for separating carbon monoxide from gaseous mixtures
Inventor: HIRSCHBECK JOSEF
IPC: C10K1/12
Filed: 1958-02-17
Abstract: Carbon monoxide is removed from an olefinfree gas by absorption in an aqueous solution containing one or more amines and mono- and divalent copper, 5-20%, preferably 10-15%, of the copper being in the divalent form.  The solution preferably contains 200 gm./1 of copper. The gas treated may contain hydrogen, nitrogen, carbon monoxide, and methane.  The amine may be an alkanolamine, e.g. ethanolamine, propanolamine, or diethanolamine.  The absorbent solution may be prepared by heating a mixture of cuprous oxide, ammonium nitrate, monoethanolamine and water, driving off the ammonia set free, and partially oxidizing the resulting cuprous solution.  The cuprous solution may alternatively be prepared by interacting cuprous oxide an aqueous nitric acid in the presence of mono-ethanolamine, or by dissolving copper in an aqueous ammonium salt solution containing an alkanolamine in the presence of air or oxygen.  Carbonate, chloride, acetate, or formate ions may be present instead of nitrate ions.  The cuprous solution may be oxidized with air or oxygen at a temperature of 30 DEG -70 DEG C., and under a gauge pressure of 0-50 atmos. Absorption may be effected at a temperature of 0 DEG -30 DEG C., preferably 0 DEG -20 DEG C., and a gauge pressure of 1-50 atmos, preferably 10-30 atmos.  Desorption may be effected at a temperature of 30 DEG -70 DEG C., preferably 40 DEG -60 DEG C., and under an absolute pressure of 0,1-2 atmos.  The desorbed solution may be recycled to the absorption step.  Partial reduction of the absorbent solution may be allowed to take place, the solution being reoxidized between the steps of desorption and recycling. Alternatively partial reduction may be prevented by carrying out the absorption in the presence of oxygen.
Patent GB-163804-A (GB)
Title: Improvements in or relating to friction clutches
IPC: F16D13/16
Filed: 1920-02-25
Abstract: 163,804. Cooper, T. Feb. 25, 1920. Clutches, friction. -In plate-clutches, the driving-discs 3 and the driven discs 5 are kept out of rubbing contact when disengaged, as shown in the upper half of the Figure, by spring - pressed plungers 7 mounted in the boss 2 and casing 4, and engaging V-shaped grooves 6 in the bore and periphery respectively of the two sets of discs. The presser-plate 8, backplate 9, and discs 3, 5 are tapered, the grooves being formed in the wider edges of the discs. In a modification, the grooves are formed in the plungers, and engage inclined faces on the discs.
Patent GB-777458-A (GB)
Title: Improvements in and relating to corrosion-resistant resinous cements
Inventor: HUGHES HARRY
IPC: C08K13/02
Filed: 1954-02-26
Abstract: A corrosion-resistant cement is made by mixing a phenol-furfural resin syrup, an inert filler and an acid-type hardening accelerator in an amount sufficient to cause the cement to set solid at atmospheric temperature.  Hardening accelerators specified are sulphonic acids, sulphonyl chlorides or inorganic salts of amines or amides, preferably p-toluene sulphonyl chloride.  The phenolic compounds specified are phenol, the isomeric cresols and xylenols or mixtures thereof.  Specified fillers are fine coke breezes, carbon black, ground white silica, china clay and acid-resistant brick dust. Increased resistance to alkalis is obtained by the addition of compounds such as furfuryl alcohols, esters of organic or inorganic acids, chlorinated aliphatic alcohols or aldehydes, e.g. tetrahydro furfuryl acetate, diethyl sulphate, epichlorhydrin, ethylene chlorhydrin, chloral hydrate, b -dichlorhydrin and a -dichlorhydrin. The molecular ratio of furfural to phenol in the resin syrup should not exceed 2 : 1 and the preferred amount of the hardening accelerator is 10 to 20 per cent of the sum of the weights of the resin syrup and the alkali resistant reagent. The phenolfurfural resin syrup was made by refluxing at 100 DEG  C. a mixture of phenol and furfural with sodium carbonate as hardening catalyst.  The examples describe the preparation of cements by mixing phenol-furfural resin syrup and p-toluene sulphonyl chloride with (1) fine coke breeze, (2) coke and a solution of polyvinyl butyral in furfuryl alcohol, (3) a -dichlor hydrin and finely divided carbon, and (4) tetrahydrofurfuryl acetate and finely divided carbon.  The examples also describe the use of the cements for joining acid-resistant bricks.  Specification 666,690 is referred to.
Patent GB-601213-A (GB)
Title: Improvements in or relating to transfers
IPC: B44C1/175
Filed: 1944-03-28
Abstract: 601,213. Transfers. LEWIS, C. W., and DISPLAY PATENTS, Ltd. March 28, 1944, No. 5725. [Class 100(ii)] Multi-coloured transfers are made by machine-printing a part of the display matter on a paper or other temporary support, applying another part of the display matter by stencilling and then applying a complete coating of an oil paint or varnish which constitutes one of the colours of the transfer and serves to bind the colours of the transfer together.
Patent GB-910843-A (GB)
Title: Improvements in or relating to devices for unloading radioactive elements from a verticle duct of a reactor core
Inventor: FOGLIA SEBASTIEN
IPC: G21C19/26
Filed: 1960-02-18
Abstract: 910,843. Servicing reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Feb. 18, 1960 [Feb. 18, 1959], No. 5771/60. Class 39 (4). [Also in Group XXX] An unloading device intended for extracting a damaged fuel or control rod or a graphite sleeve surrounding a fuel rod, from a channel in the reactor core comprises a cylindrical body 1 having a ring 2 for attachment to a cable and three equi-spaced fingers 3 of rectangular cross-section. The inner faces 4 of the fingers are arranged to slide over the fuel rod 5 to be extracted and each face has at least one recess 7 in which a ball or roller 9 is held captive. When the device is lowered on to a rod the balls retire into the recesses but on lifting the device the balls 9 move into the lower part of the recesses 7 and wedge against the surface of the rod whereby the latter is lifted. The outer faces of the fingers 3 may be similarly provided with recesses 7<SP>1</SP> containing balls 9<SP>1</SP> and these faces may slide over the inner surface of a graphite sleeve 6 so that the sleeve is extracted simultaneously with the rod.
Patent GB-1413975-A (GB)
Title: Preparation of silicon nitride
IPC: C04B35/591
Filed: 1972-02-08
Abstract: 1413975 Silicon nitride artefacts UNITED KINGDOM ATOMIC ENERGY AUTHORITY 5 April 1973 [8 Feb 1972] 5803/72 Heading C1A Si 3 N 4  artefacts are prepared by nitriding Si mixed with B or a B compound, e.g. BN 2 , as additive. The additive may be present in a amount of from 1-(5% by wt. and have a particle size smaller than 200 B.S.S. and a surface area of from 500-20,000 cm.<SP>2</SP>/g. The Si may have a particle size of 5-25Á. The artefact may be prepared by grinding together a mixture of 95% by wt. Si and 5% B to form a powder having a surface area of 6400 cm.<SP>2</SP>/g. The powder may then be compacted into a pellet, and heated to 1250-1350‹ C. in N 2 .
Patent GB-193677-A (GB)
Title: Improved process of thawing and oxygenating frozen meat
IPC: A23B4/07
Filed: 1922-02-27
Abstract: 193,677. Fairclough, A. Feb. 27, 1922. Restoration of preserved food.-Frozen meat is thawed by air which has been passed through salt, filtered, and rarefied by heat, and is afterwards treated with oxygen. Air is passed into the chamber a, through a chamber g containing loose grain salt, a filter h, a heater i, where it is heated to 100‹ F., and a blower d. Air is removed from the top of the chamber a by a blower e. A thermostat j allows of the escape of warm air and admits cold air as required. Canvas curtains &c. absorb moisture rising from the meat. When the meat is thawed, oxygen is admitted from a container o until the pressure in the chamber a rises to atmospheric.
Patent GB-884456-A (GB)
Title: Improvements in or relating to circuit arrangements for varying the picture definition in single side band television receiving apparatus
IPC: H04N5/44
Filed: 1958-02-24
Abstract: 884,456. Valve circuits for radio reception. TELEFUNKEN G.m.b.H. Feb. 24, 1958 [Feb. 23, 1957], No. 5849/58. Classes 40(5) and 40(6). The response of a single side band television receiver is varied by means of a direct-current controlled reactance. This may comprise a condenser 9 in series with a rectifier 10 whose resistance is varied by the D.C. potential applied to it from potentiometer 12, via H.F. filter 11. The variable reactance is shunted across the secondary of an I.F. tuned transformer 3 which as shown comprises a single tuned circuit, but which in another embodiment (Fig. 4, not shown) comprises a bandpass pair. In a further embodiment (Fig. 6, not shown) a parallel-tuned is shunted across the rectifier, automatic control of response in accordance with the signal level being obtained, since the diode rectifies and is biased by the I.F. voltage appearing across it. The arrangement may alternatively be used to vary the video response, being connected in shunt to the input to the video amplifier (Fig. 5, not shown). The Specification also refers to the use of alternative D.C. controllable devices, e.g. voltage sensitive condensers, current or temperature sensitive resistors, ferrite cores, or thermionic valves.
Patent GB-539496-A (GB)
Title: Improvements in or relating to mosaic electrodes for television transmitting tubes
IPC: H01J29/43
Filed: 1940-04-01
Abstract: 539,496. Cathode-ray tubes. MULLARD RADIO VALVE CO., Ltd. April 1, 1940, No. 5869. Convention date, April 3, 1939. [Class 39 (i)] A mosaic screen to be scanned by a cathode-ray is connected to a metal backing by hooks, rivets &c. which have approximately the same secondary emissive power as the mosaic, so that the potential of the plate is not appreciably disturbed when they are struck by the ray. An arrangement is described consisting of a mica sheet 1 with a mosaic 3 and a metal coating 4 held against a back plate 2 of aluminium by hooks 5, Fig. 2 and a hollow rivet 9, Fig. 3, to which is attached the lead 10. The hooks may be arranged around three edges of the sheet and the rivet near the middle of the fourth side. The hooks and rivet are preferably of constantan, but may be of copper or silver, and are subjected to the activating process along with the screen. The hooks may be replaced by turned over portions of the edge of the plate 2, which are silvered.
Patent GB-1443593-A (GB)
Title: Isomers and mixtures thereof of a piperazine derivative
IPC: A23L19/00
Filed: 1974-02-08
Abstract: 1443593 Isomers of N,N<SP>1</SP>-bis[(1-formamido- 2,2,2 - trichloro)ethyl] - piperazine CELAMERCK GmbH & CO KG 8 Feb 1974 [10 Feb 1973 15 Oct 1973 21 Dec 1973] 05907/74 Heading C2C Claimed per se are the individual isomers [(L,L), (D,D), meso], the racemic mixture [(L,L) + (D,D)] and mixtures of isomers of N,N<SP>1</SP> - bis - [(1 - formamido - 2,2,2 - trichloro)- ethyl]piperazine other than the equilibrium mixture (approximately 45 : 55 weight ratio of racemic mixture to meso isomer). Particularly preferred mixtures of isomers are (a) those wherein the concentration of the L,L-isomer is greater than the equilibrium concentration thereof and (b) mixtures comprising 60-100 wt. per cent of the racemic mixture and 40-0 wt. per cent of the mesoisomer. Mixture (b) is obtained by recovering the same from an approximately equilibrium mixture with a solvent or solvent mixture chosen such that the racemic mixture is more soluble therein than the meso-isomer. Preferred solvents are aqueous acetone containing 5-20% by volume of water and dimethylformamide. Continued or repeated extractions produce substantially pure meso-isomer residues and racemic mixture extracts. A synthesis for the production of the (L,L)- isomer entails (i) reaction of piperazine with (+,-) - 1,2,2,2 - tetrachloroethylformamide at only one nitrogen atom to give (+,- )-N-(1- formamido - 2,2,2 - trichloroethyl)piperazine, (ii) formation of diastereoisomeric salts of the latter with an optically active acid (e.g. (L( + )- tartaric acid), (iii) separation of said salts and production of optically pure (-)-N-(1-formamido - 2,2,2 - trichloroethyl)piperazine by treatment of the salt with aqueous alkali, (iv) reaction of this optically pure compound with (+,-)-1,2,2,2-tetrachloroethylformamide and (v) separation of the 50 : 50 mixture of (-, - )- and  (+ ,-)-N,N<SP>1</SP>-bis-(1-formamido- 2,2,2 - trichloroethyl)piperazines thus produced by mechanical crystal selection or by fractional extraction and/or crystallization (e.g. using 90% by volume aqueous acetone, boiling methanol, tetrahydrofuran, DMF or acetonitrile). The D.D and/or meso-isomer is converted to the racemic mixture by heating in solution (e.g. at 40 to 110 C. in DMF, N-methylpyrrolidone, dimethylacetamide, hexamethylphosphoric acid triamide, caprolactam and/or phenol, dimethylsulphoxide, tetrahydrofuran, cyclohexanone, butyrolactone, acetone, acetonitrile and/or methanol). The isomers and mixtures thereof possess fungicidal properties.