baber/WOPTO huggingface dataset:
Patent GB-847802-A (GB)
Title: Process for producing cyanoalkylsilanes
IPC: C07F7/18
Filed: 1956-12-21
Abstract: Platinum and/or palladium is used as a catalyst in the production of cyanoalkylsilanes by reacting an olefinic nitrile in which the olefinic group is at least one carbon atom removed from the cyano group with a silane of the formula H Si Rn X(3-n), where R is hydrogen, alkyl, cycloalkyl, aryl or alkaryl, X is halogen or alkoxy or aroxy, and n is 0, 1 or 2.  Examples of nitriles are allyl and methallyl cyanides and 1-cyano-4-pentene. The platinum or palladium catalyst may be used alone or in combination with an inert support such as asbestos, charcoal or calcium carbonate.  They may also form part of a multi-component system, e.g. platinum deposited on gamma alumina.  The amount of metal catalyst may be from 0,02 to 2 parts per 100 of the weight of starting materials.  Suitable temperatures are from 40 DEG  to 350 DEG  C and pressures may be superatmospheric. The products include mono-, bis- and tris- (cyanoalkyl) silanes and specific examples are gamma-cyanopropylhydrogendichloro- and diethoxy-silane, bis (gamma-cyanopropyl) hydrogenchloro- and ethoxy-silane, delta-cyanobutylhydrogendichlorosilane, epsilon - cyanopentylhydrogendiethoxy - silane, gamma-cyanopropylmethyldichloro- and diethoxy-silane, gamma-cyanopropyltrichlorosilane, gamma-cyanopropylethyl- and phenyldichlorosilane and beta-methyl-gamma-cyanopropyltrichlorosilane.  Bis (gamma-cyanopropyl) dichlorosilane is prepared from allyl cyanide and gamma-cyanopropylhydrogendichlorosilane; and the compounds can be hydrogenated in the presence of a nickel catalyst to produce aminoalkylsilanes which are useful as sizes for fibrous glass materials.  Specification 847,803 is referred to.
Patent GB-871700-A (GB)
Title: Improvements in apparatus for collecting airborne textile fibrous materials
Inventor: GREENWOOD ROBERT
IPC: D04H1/72
Filed: 1958-12-03
Abstract: 871,700. Collecting airborne textile fibres. T.M.M. (RESEARCH) Ltd. Dec. 3, 1959 [Dec. 3, 1958], No. 39039/58. Class 120(1) Apparatus for collecting airborne textile fibres from an airstream in which they are entrained comprises a foraminated cylindrical condensing surface 11, rotating about a suction nozzle casing 12, longitudinally slotted and fixed relative to a suction fan 10, the nozzle casing 12 being divided into two horizontal compartments by an apertured plate 13, the cross-section of the aperture of which decreases uniformly towards the suction fan 10. In a modification, Fig. 2., for a textile combing machine, slot 13 is replaced by a series of slots 132 whose cross-sectional area decrease towards the suction fan 10 and opposite which are slots 122 in the nozzle casing 12. The nozzle may be exhausted at both ends of the cage 11, in which case the aperture 13 would be widest at its midpoint, or the suction fan 10 may serve two condensers or the cylindrical condensing surface may be replaced by an endless perforated belt extending across the width of the nozzle casing 12. According to the Provisional Specification, restriction of the entry aperture of the nozzle may be made by inserting one or more parallel bars.
Patent GB-862760-A (GB)
Title: Improvements in or relating to barriers or like obstacles
Inventor: GOSTLING PETER ERIC
IPC: E01F13/02
Filed: 1958-12-04
Abstract: 862,760. Fencing. KWIKFORM Ltd. Nov. 25, 1959 [Dec. 4, 1958], No. 39086/58. Class 45. [Also in Group XXV] A barrier, fencing or hurdle comprises a beam 18, end supports 10 hinged to the beam, and means for releasably clamping the beam and supports in predetermined orientation. The barrier may comprise two or more beams, the adjacent ends of adjacent beams being carried by single supports.
Patent GB-1373648-A (GB)
Title: Packaging film
IPC: A22C13/00
Filed: 1972-08-14
Abstract: 1373648 Eucollagen film BRITISH FOOD MFG INDUSTRIES RESEARCH ASSOCIATION and KEMA NORD Ltd 14 Aug 1972 [20 Aug 1971] 39202/71 Heading B5B A hot water-soluble heat-sealable packaging film is made by casting a dispersion of eucollagen in a hydroxycarboxylic acid solution on to a smooth surface and drying it.  In a preferred method eucollagen is made from bone or skin collagen, which is treated with sodium hydroxide of at least 7% concentration in the presence of a precipitating agent, suitably sodium sulphate of 70 to 100% concentration, and the eucollagen so made washed until it is substantially neutralized. The neutralized eucollagen is then, soaked in a solution of lactic, maleic or tartaric acid of at least 0À9% concentration, to give a solution of pH 2À5 to 4À0, water being added if necessary to give a protein solids concentration of 0À5 to 6À0%. After homogenizing and deaeration the dispersion, to which may be added a plasticizing agent, e.g. up to 5% glycerol, and up to 4% titanium dioxide, is spread into moulds or cast on plates to give a thickness of 0À05-0À3 mm. and dried, preferably in a forced air draught at 15-25‹ C. Film so made shrinks to only a few per cent of its original area in water at 90‹ C., and breaks up in boiling water. It can be readily heat sealed and is impermeable to vegetable oils.
Patent GB-1434109-A (GB)
Title: Preparation of a silica-alumina hydrogel composition
IPC: C01B39/24
Filed: 1973-08-20
Abstract: 1434109 Catalyst for cracking oils W R GRACE & CO 20 Aug 1973 [21 Aug 1972] 39333/73 Heading C5E [Also in Division B1] Hydrocarbon feeds are cracked in the presence of a silica-alumina hydrogel composition containing from 8 to 50% wt. alumina (based on the total weight of silica and alumina) which has been prepared by (a) reacting 30-90% wt. of an alkali metal silicate with aluminium sulphate; (b) ageing the gel formed at 2-180 mm.; (c) adding further aluminium sulphate or sodium aluminate; and (d) washing. The composition may contain 0À5-50% wt. of a zeolite or 10-60% wt. clay. The examples describe cracking of a gas oil feed at 920‹ F. at a weight space velocity of 40 hr.<SP>-1</SP>
Patent GB-1167437-A (GB)
Title: Production of Oxygen-Enriched Air
Inventor: SMITH DONALD L
IPC: F25J3/04
Filed: 1967-08-29
Abstract: 1,167,437. Cold separation of air. AIR REDUCTION CO. Inc. 29 Aug., 1967 [6 Sept., 1966], No. 39448/67. Heading F4P. Production of oxygen-rich air is effected by partly condensing cold saturated compressed air within vertical tubes 19 cooled by indirect heat exchange with sub-cooled oxygen-rich liquid which is vaporized in passages 20 surrounding tubes 19 and obtained by withdrawing oxygen-rich liquid from a pool 28 below tubes 19, sub-cooling in exchangers 40, 41, 42 traversed by uncondensed feed air withdrawn from the head of tubes 19 and expanded in turbines 50, 51 and expanding the sub-cooled oxygenrich liquid in a valve 56 to a pressure sufficient to propel it through vaporizer passages 20; product oxygen-rich air in the gaseous phase being withdrawn through a line 58. The cold content of the product and of the expanded lean air is recovered in conventional regenerators 13 to 16.
Patent GB-1459607-A (GB)
Title: Undulating pressure responsive devices
IPC: G01F23/14
Filed: 1974-09-10
Abstract: 1459607 Pressure gauges; liquid level indication R E NELSON 10 Sept 1974 [10 Sept 1973] 39476/74 Headings G1H and G1L In one embodiment of an undulating fluid pressure responsive device an undulating pressure such as is produced in a probe 96 in oil in an engine or compressor crank-case 91 is applied to a nipple 45 and oscillates a diaphragm 40 to produce a corresponding pressure variation in a space 39 to open a valve 30 and draw air into a space 39. When the valve 30 is closed on the return stroke, the air in space 39 is compressed and forced through passages 38, 37 and 37a to a region 35 to open a valve 32 to admit air to a space 59 and lift a diaphragm 56 to allow air, in normal conditions, to flow through a restricted passage between an opening 66 and a poppet valve stem 68 to a region 67 and then through ports 79 to atmosphere. If the undulations are too strong, as occurs when the oil level falls below the level of a port 95 in the probe end, and accumulated air cannot escape rapidly enough, the face 71 of a member 62 carried by the diaphragm 56 rises far enough to move a head 69 of the poppet valve into engagement with a button 72 to activate a switch 73 e.g. to shut down the engine. In another embodiment, Fig. 3 (not shown), pulses reciprocate a diaphragm (141) similar to 40, as before, which in this case withdraws air from a capsule formed by rigid and flexible cup-like members (178, 180) joined mouth to mouth and having an air bleed (200) to prevent low-pressure developing under normal conditions. When strong pulses develop, however, due e.g. to a low oil level, the flexible cup collapses and operates through linkage a shut-down device or an oil level make-up valve Fig. 4 (not shown).
Patent GB-1130909-A (GB)
Title: New 3-[2-(5-nitrofuryl-2)-vinyl]-s-triazolo-[4.3-a]-pyridine derivatives and process for the preparation thereof
IPC: C07D471/04
Filed: 1967-08-29
Abstract: 1,130,909. Nitrofuran derivatives. C. F. BOEHRINGER & SOEHNE G.m.b.H. 29 Aug., 1967 [31 Aug., 1966], No. 39487/67. Heading C2C. Novel compounds of Formula (I), in which R is hydrogen, halogen, alkyl, alkoxy, nitro, amino, C 1-5 acylamino, carboxy, alkoxycarbonyl or carbamoyl, are prepared by ring closure of compounds of Formulas (II) or (III), in which X is hydrogen or nitro, by dehydrogenation or dehydration respectively, or by reaction of compounds of Formula (IV) with compounds of Formula (V), followed, when X is hydrogen, by nitration of the compounds obtained. The compounds in which R is amino are prepared by saponification of the corresponding acylamino compounds. The novel compounds are stated to have antimicrobial activity. Starting materials of Formulae, (II) and (III) are prepared by reacting 2-hydrazino-pyridines with furyl-(2)-acroleins or furyl-(2)-acrylic acid chlorides, respectively.
Patent GB-842310-A (GB)
Title: Scraped surface heat exchange apparatus
IPC: F28F19/00
Filed: 1958-12-08
Abstract: 842,310. Mixing-apparatus. CHEMETRON CORPORATION. Dec. 8, 1958 [Aug. 15, 1958], No. 39551/58. Class 86 Apparatus for mixing materials whilst subjecting them to heat-exchange comprises a cylindrical treatment chamber 11 having a jacket 15 for the heating or cooling medium, and a rotary shaft 26, carrying scraping-blades 30, so arranged within the chamber that the distance between shaft and the walls of the chamber is not constant, the maximum distance being at least one and a half times the minimum distance. As shown, the shaft 26 is carried in bearings 22, 23 arranged eccentrically of the chamber 11, and the scraping blades 30 are notched at 31 to be accommodated in notches 33 in pins 32 screwed into the shaft 26, pins 35 engaging slots in the blades to locate them. The blades are subject to centrifugal force which keeps them pressed into scraping contact with the chamber walls. The blades are preferably short and spaced to an extent less than the length of the blades, so that the blades in staggered rows have overlapping scraping zones. The material is pumped in at 40 and leaves at 41, whilst heat exchange fluid is supplied and exhausted at 18, 20. The non-uniform distance between the shaft 26 and the chamber walls prevents mass rotation of the material in the chamber, and improves the heat-exchange efficiency. Also, the inward and outward movements of the blades enhances the mixing efficiency of the apparatus. In Fig. 4, the blades 51 are accommodated in recesses in the shaft 53, locating pins 56 being provided to engage slots in the blades. In Fig. 5, the blades 61 are cranked to improve the angle of scraping-contact, the blades having circular beads 63 which are oscillatable in recesses in pins 65 screwed into the shaft 53 at the ends of each blade. The processing of liquid or semi-plastic materials such as margarine, ice cream, peanut butter, lubricating grease, confections, triglyceride oils and detergents, and the use of water, brine, ammonia or steam as heat-exchange media are mentioned. Specification 649,324 is referred to.
Patent GB-346385-A (GB)
Title: Process for making diazotisable fibres
IPC: D06P1/12
Filed: 1929-12-30
Abstract: Diazotizable textile fibres are produced by treating cotton fibres, cellulose artificial fibres, or partially acetylated cellulose fibres with a nitrated benzyl halide in the presence of an acid-binding agent (other than caustic alkali) and thereafter reducing the product obtained.  Cotton fibres must be rendered reactive before treatment, for example, by swelling with alkali. In examples, moist cuprammonia silk is treated in fused nitrobenzyl chloride containing powdered chalk, washed, and reduced with sodium hydrosulphide; mercerized cotton yarn is immersed in 10 per cent soda lye, washed, treated in an autoclave in the presence of sodium carbonate with a solution of nitrobenzyl chloride in acetone, again washed and reduced as above.
Patent GB-1455220-A (GB)
IPC: C07J53/00
Filed: 1974-09-12
Abstract: 1455220 7-Substituted-spiroxane steroids G D SEARLE & CO 12 Sept 1974 [14 Sept 1973] 39799/74 Heading C2U Novel steroids of the formula (wherein " alkyl " contains 1-7 carbon atoms and #<SP>1</SP> is optional) are prepared by contacting 4<SP>1</SP>,5<SP>1</SP> - dihydrospiro - [androsta - 4,6 - diene - 17, 2<SP>1</SP>(3<SP>1</SP>H)-furan]-3-one with an alkali metal cyanide in a solvent under slightly basic conditions to give 7α,4-(amino-methylidyne)-5-cyano-4<SP>1</SP>,5<SP>1</SP>- dihydrospiro - [5# - androstane - 17,2<SP>1</SP>(3<SP>1</SP>H)- furan]-3-one, contacting this with dilute aqueous mineral acid to give 4α,7α-carbonyl-5-cyano-4<SP>1</SP>, 5<SP>1 </SP>- dihydrospiro[5# - androstane - 17,2<SP>1</SP>(3<SP>1</SP>H)- furan]-3-one and heating this with an alkali metal alkoxide to give the required #<SP>4</SP>-products which if desired may then be dehydrogenated to the required #<SP>1,4</SP>-products. In an alternative process a corresponding 7α-CO 2 CO 2  alkyl steroid is contacted with a C 1-7  alkanol. These starting materials are prepared by hydrolysing the novel steroids and reacting the resulting free acids with an alkyl chloroformate. The novel steroids are diuretics and can be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1163614-A (GB)
Title: An Electrically Incinerating Closet.
Inventor: NORDSTEDT HANS JOSEF
IPC: A47K11/02
Filed: 1966-09-06
Abstract: 1,163,614. Containers. HAKANSSONS INDUSTRIER A.B. 6 Sept., 1966 [10 Dec., 1965; 18 March, 1966], No. 39855/66. Heading B8D. [Also in Division E1] In an electrical incinerating closet in which a synthetic resin or synthetic resin coated paper bag 1 is supported within the bowl 4, the bag has a flat bottom 2 and inclined corrugated side walls 3 and rests at the bottom on a door 9 which is operable to empty the bowl. In a modification, Fig. 4 (not shown), the bag has at its upper edge outwardly extending flaps which are clamped between the bowl and pads on a pivoted spring-raised seat.
Patent GB-1457165-A (GB)
Title: Electron beam vaporizer
IPC: C23C14/30
Filed: 1974-09-13
Abstract: 1457165 Electron beam furnace ROBERT BOSCH GmbH 13 Sept 1974 [17 Sept 1973] 39943/74 Heading H1D [Also in Division C7] To coat evenly a substrate by evaporation from an elongated crucible heated by one or more electron beams, a D.C. electromagnet 29 with polepieces 18, 19 along the long sides of the crucible 17 provides a field 23 across the surface 25 of the melting charge, while beam(s) 12, 13 enter linearly at acute angles to the field, in horizontal projection, either at the crucible end or through oblique apertures 26 in the polepieces, and spiral down to the melting surface 25. Electrons 32 scattered once by vapour particles cannot escape from the field, and electrons reflected 35 without loss of energy from surface 25 restrike the surface. To reduce risk of positive ions bombarding the gun 10, 11 cathodes, the guns may be displaced vertically or horizontally from the straight trajectory, the electron beams being deflected externally by known means to rejoin the straight trajectory (Fig. 4, not shown). The vapour, partially trapped between the polepiece walls, deposits coating on the band of substrate 21 moving across the crucible 17. Al is quoted as an example of coating material.
Patent GB-1083753-A (GB)
Title: Improvements relating to soil sampling
IPC: E21B25/06
Filed: 1965-09-20
Abstract: 1,083,753. Boring earth &c. STICHTING WATERBOUWKUNDIG LABORATORIUM. Sept. 20, 1965 (Oct. 2. 1964], No. 39954/65. Heading E1F. During taking a core, the core is surrounded by a hose knitted of threads such as nylon and the hose is impregnated with a liquid which forms a film and renders the hose non-stretchable and impervious to water. The film may be formed by the contact of the liquid with the ground water of the core and/or a further liquid. The hose and the liquid are initially contained in an annular chamber (3, Fig. 1) connected to the interior of the core-taking tube (1) by a slot (6) for the passage of hose and liquid. The further liquid (water) is supplied to the interior of the tube and also serves to support the sample. Vents (8) form a communication between the chamber and the tube interior. The leading end of the hose is closed and is pushed upwardly within the tube by a plastics plug (19 Fig. 2) initially separating the liquid and the further liquid which may be in accordance with Specifications 1,044,218 or 1,068,125.
Patent GB-1301966-A (GB)
IPC: H01K1/38
Filed: 1971-08-12
Abstract: 1301966 Electric lamps GTE SYLVANIA Inc 12 Aug 1971 [19 Aug 1970] 37964/71 Heading H1F [Also in Division C1] In an electric lamp having a high-silica glass envelope closed by a press seal having a molybdenum ribbon embedded therein and a molybdenum lead-in wire connected to the ribbon within the seal and wherein the lead-in wire protrudes outwardly from the seal, the lead-in wire has a coating of molybdenum aluminide. The aluminide coating prevents oxidation of the lead-in wire because the aluminium is converted to aluminium oxide. The coating is formed on the wires by packing a mixture of aluminium powder, silica and sodium fluoride around the wires and heating them in hydrogen at 1900‹ F. for 2 hours. The interstitial passages of the press seal are sealed-off using soft glass (8, the Figure, not shown). Although the specific embodiment relates to a halogen tungsten-filament lamp, the leads of I.R. heating lamps and arc discharge lamps may be similarly treated. Double or single-ended lamps may be treated.
Patent GB-1120526-A (GB)
Title: Improvements in or relating to electrical position resolvers and arrangements incorporating the same
Inventor: ELLIS ALFRED BRIAN EDWIN
IPC: G06F3/033
Filed: 1966-09-07
Abstract: 1,120,526. Writing telegraphs. MARCONI, CO. Ltd. July 6, 1967 [Sept. 7, 1966], No. 40057/66. Heading G1N. Two mutually insulated resistive layers R1, R2, Fig. 3, have respective alternating voltages of frequencies f 1  and f 2  applied in perpendicular directions, and the co-ordinates of position of a probe P, Fig. 1 (not shown) capacitatively coupled to the layers, are determined by filters 7, 8, tuned to the respective frequencies and connected between the probe and output terminals 9, 10. An insulating base A carries the first layer R1 and an insulating coating L1 separates the two layers. A hard insulating layer L2 is contacted by the probe. The alternating voltages are connected via rejection filters 5, 6 to the layers R1, R2, connection being made by means of a pair of parallel conductive strips X1 X2 on one layer and a pair of parallel strips (Y1, Y2) perpendicular thereto on the other. Unbalanced drive (as shown) with one strip of each pair earthed may be used, or balanced push-pull drive. The terminals 9, 10 may be connected to an apparatus to be controlled, or to a cathode ray tube.
Patent GB-1184198-A (GB)
Title: Shaft Seal with Wiper
IPC: F16J15/32
Filed: 1967-09-01
Abstract: 1,184,198. Shaft seals. CHICAGO RAWHIDE MFG. CO. 1 Sept., 1967 [30 Dec., 1966], No. 40094/67. Heading F2B. A seal for reciprocating shafts in hydraulic equipment of aircraft or agricultural machines comprises a casing 42 having an anti-extrusion conical portion 45 for a primary sealing element 52 mounted thereon and terminating in a sealing lip, and a wiper element 48 which may be either bonded to the casing and joined by an integral portion (24) to the element 52, Figs. 1 and 2 (not shown), or, as shown, loosely-held together with a scraper ring 50 in a cylindrical portion of the casing 42 by a retainer 51. The casing 42 may be made of sheet metal or moulded plastics and the scraper ring 50 may be made of bronze. The seal may be retained by a snap ring 67, gland nut or bolt-on flange. The action of the wiper and scraper rings prevents mud or ice reaching the sealing area.
Patent GB-1486431-A (GB)
Title: Developer sheets
IPC: C09D11/00
Filed: 1974-09-13
Abstract: 1486431 Developer sheet FUJI PHOTO FILM CO Ltd 13 Sept 1974 [17 Sept 1973] 40107/74 Heading D2B A developer sheet for use in pressure sensitive recording comprises a support having print-coated on one surface thereof a developing ink comprising (a) a colour developer, (b) a binder comprising a thermoplastic linear polyester derived from a dicarboxylic acid and a dihydric alcohol, and (c) an organic liquid medium in which the binder can be dissolved or dispersed. Preferably the ink comprises from 10 to 50 % by weight of the colour developer, from 5 to 45 % by weight of the polyester and from 30 to 80 % by weight of the liquid medium. The ink may also contain a plasticizer, a filler and a white pigment. The support is preferably of paper. The developer sheet may have a layer of colour-former on one face thereof.
Patent GB-888559-A (GB)
Title: Process for the manufacture of formaldehyde polymers
IPC: C08G2/08
Filed: 1960-11-23
Abstract: Formaldehyde is polymerized in aqueous solution in the presence of at least as much added formaldehyde polymer as there is of formaldehyde. The formaldehyde may be mixed with the added polymer to form a nonpasty mixture of water content below 30% until polymerization is complete and the mixture dried to give a granular polymer of CH2O content of at least 99%.  The formaldehyde solution preferably has a formaldehyde content of 70%, while the quantity of added polymer may be 140% and the temperature of polymerization 20 DEG  to 40 DEG C. The process may be carried out continuously, a part of the polymer produced being recycled to fresh formaldehyde solution.  Apparatus for carrying out the process is described.
Patent GB-1498081-A (GB)
Title: Covalently bound biological substances to plastic materials and use in radioassay
IPC: C12N11/08
Filed: 1975-10-02
Abstract: 1498081 Reagent treated tubes for analysis SMITH KLINE INSTRUMENTS Inc 2 Oct 1975 [4 Oct 1974] 40342/75 Heading G1B [Also in Division C3] Plastic tubes, e.g. of polypropylene, for use in radioimmunoassay procedures are treated internally with glutaraldehyde to form a glutaraldehyde polymer coating on the inside surface to which is then bonded a protein which is an immunological counterpart of an antigen to be assayed. The tube may be first impregnated with an amine. After the immunological counterpart has been coupled, the material to be assayed e.g. thyroxine vitamin B 12  or folic acid is incubated in the tube together with a radio-actively labelled derivative and the product counted with a detection device and compared with a standard.