baber/WOPTO huggingface dataset:
Patent GB-1531578-A (GB)
Title: High molecular weight polyamines and process for their preparation
IPC: C07C239/00
Filed: 1976-10-14
Abstract: 1531578 Polyurethane polyamines BAYER AG 14 Oct 1976 [17 Oct 1975] 42701/76 Heading C3R Polyamines having the general formula wherein n is an integer, preferably 2 to 10; R is an n-valent group obtained by removal of nhydroxyl from a polyol Mol. Wt. 200 to 10,000 which may contain urethane groups; R 1  and R 2  are alkylene, cycloalkylene, arylene or aralkylene groups, preferably having 2 to 15 carbon atoms, which in the case of R 2  may contain -O- or radicals and R 3  and R 9  are hydrogen or cycloalkyl or alkyl group or R 2  and R 3  with the terminal -NH- may form a piperidine or pyrrolidone ring, may be prepared by reacting #-hydroxy-ketimines, -aldimines or -enamines of the general formula or  4 with an isocyanate prepolymer of general formula prepared by reacting a polyol with excess diisocyanate, in which formulae R, R 1 , R 2  and R 3  are as described above and R 4  and R 5  are alkyl, cycloalkyl, aryl or aralkyl groups or R 4  and R 5  together form a 5 to 12 membered ring or R 4  is a hydrogen atom and R 6 , R 7  and R 8  are alkyl cycloalkyl, aryl or aralkyl groups or R 6  and R 8  together form a 5 to 12 membered ring or R 6  and/or R 7  are hydrogen atoms; hydrolytically decomposing the resulting polyketimine, polyaldimine or polyenamine and removing the liberated carbonyl compound from the polyamine. Suitable isocyanate prepolymers are obtained by reacting a polyoxypropylene triol Mol. Wt. 2,900 with 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane or by reacting a polyoxypropylene-polyoxyethylene triol Mol. Wt. 4,800 with tolylene diisocyanate, the prepolymers having NCO contents of 3À5% and 2À2% respectively. Compounds suitable for reaction with the prepolymers are hydroxyaldimines obtained by reacting 1,6-hexanediol- 1-(3-aminopropy ether) with isobutyraldehyde or N - methyl - N - (3 - aminopropyl)ethanolamine with either isobutyraldehyde or benzaldehyde; a hydroxy enamine obtained from N - # - hydroxyethylpiperazine and isobutyraldehyde and a hydroxyketimine obtained from diethylene glycol - (3 - propylamine)ether and cyclohexanone. In a typical example a hy: droxyketimine, prepared by reacting 1-aminohexanol with methylisobutyl ketone, is reacted in the presence of a stannous octoate catalyst and at 20-30 C., with an isocyanate prepolymer, NCO 3À5%, prepared from polyoxypropylene glycol Mol. Wt. 2,000 and hexamethylene diisocyanate, to give a diketimine which is hydrolysed by steam distillation leaving a residue of the diamine which is then vacuum dried. Uses.-For making polyurethane foams which may be prepared by reacting a polyamine of Formula I; a polypropylene-polyethylene ether triol; tolylene diisocyanate and water in the presence of a polyether siloxane surfactant and a tin octoate catalyst. For preparing non- foamed polyurethane resins and for use in condensation reactions wherein the polyamine is condensed with, for example, polycarboxylic acids or formaldehyde to obtain polyamides, polyesteramides or cross-linked polyhexahydrotriazines.
Patent GB-1159153-A (GB)
Title: Improvements in or relating to Catalysis
Inventor: ABSON JAMES WILLIAM
IPC: C12P3/00
Filed: 1966-09-24
Abstract: 1,159,153. Reduction catalysts. SIMONCARVES Ltd. 6 Sept., 1967 [24 Sept., .1966], No. 42749/66. Heading B1E. [Also in Division Cl] A method of producing a catalyst comprises the steps of contacting, under aerobic conditions, metal acetate-containing material with an aqueous culture comprising acetate-oxidising bacteria, removing the culture from the material, and drying the material. The metal acetate is preferably nickel acetate, but the acetates of Fe, Co, Cr, Mo, W, Mn, Mg, and Zn are also referred to. The acetate-containing material may be impregnated into a carrier, such as sepiolite (a list is given) before contact with the bacterial culture, which carrier may then be pelletised for incorporation in a catalyst bed. In an Example, sepiolite powder, after thorough drying, was immersed in nickel acetate solution at 75C for 2 hours, filtered, dried, and immersed in an aqueous culture of acetate-oxidising bacteria, prepared from sewage by standard enrichment techniques, at 30C for about 5 days, after which time no acetate remained, and then the sepiolite, containing Ni, apparently as a mixture of the oxide and hydroxide, was removed, dried, and pelletised. The pellets were then charged into a reactor to provide a catalyst bed which was used as a guard catalyst in the "shift" reaction Other examples are given, in some of which the oxidised Ni acetate is subsequently reduced using H 2 , in which case the catalyst so produced shows activity in the methanation reaction and the hydrogenation of (fats.
Patent GB-956704-A (GB)
Title: Improvements in or relating to taximeters
Inventor: HAUPT WILHELM
IPC: G07B13/00
Filed: 1959-12-16
Abstract: 956,704. Taximeters. KIENZLE APPARATE G.m.b.H. July 22,1960 [Dec. 16, 1959], No. 42774/59. Heading G4T. A taximeter has fare indicating drums 13 driven by a distance drive 21 and a time drive 19 set into and out of operation by an electromechanical switching arrangement remotely controlled from a switch board 8 near the driver's seat. The electro-mechanical switching arrangement comprises a control shaft 27 which can be rotated in either sense by a motor 28. Pressing a button F closes contacts TV, energizes a relay B, allows current to pass one way through the armature coil M of the motor 28 and thence through the stator coil N. The shaft 27 turns, a cam H thereon closes contacts to energize a relay C with delay, the contacts open, the relay B and coil M are shortcircuited; until relay C falls off the stator coil N receives current and brakes the motor so that the shaft 27 stops in a defined position appropriate, say, to tariff I. In this way the shaft 27 can be indexed to several defined positions in which the distance and time drives are set into and out of operation. Pressing a button R closes contacts TR, energizes a relay A and allows current to pass the opposite way through the armature coil M so that the motor drives the shaft 27 in the opposite sense, enabling indexing of the shaft 27 in this direction. Lamps 18 on the switchboard 8 and 42 to 45 in the near part 40 of the taximeter indicate which position of the shaft 27 is operative. Drums 14 indicating "extras" are advanced by relays energized upon passing an "extras" button 16 on the switch board so long as contacts Z are held closed by cams on the shaft 27 which is so in each defined position except the "for hire" position. The "for hire" position is indicated by the illumination of lamp 17 on the switchboard 8, lamps 41 at the back of the taximeter and lamp 46 on the roof of the vehicles. The vehicle battery 47 supplies the current over parallel lines controlled by the ignition switch G and a switch S opened by a cam on the shaft 27 in the "for hire" position. An interupter relay may be included in the electromechanical switching circuitry to open the motor circuit and prevent it being burnt out should one of the buttons F, R be permanently pressed in. Specifications 772,797, 832,755 and 861,895 are referred to.
Patent GB-1214760-A (GB)
Title: Production of allyl alcohol
IPC: E21C27/24
Filed: 1969-08-28
Abstract: 1,214,760. Allyl alcohol. DEUTSCHE GOLDUND SILBER - SCHEIDEANSTALT VORMALS ROESSLER. 28 Aug., 1969 [6 Sept., 1968], No. 42799/69. Heading C2C. Allyl alcohol is prepared by contacting propylene oxide at elevated temperature with a fixed bed lithium phosphate catalyst which is kept in continuous contact with a washing and regenerating liquid during the reaction. The liquid may be cycled through the reactor and an external heat exchanger to control the reactor temperature and may be regenerated continuously or batchwise, e.g. by distillation. Suitable liquids include higher alkylbenzenes, arylbenzenes, higher aliphatic hydrocarbons, terpenes, mineral oil, fluorocarbons, ethers, esters, ketones and heterocyclic compounds.
Patent GB-989483-A (GB)
Title: Improvements relating to rocker-operated electric switches
Inventor: HEITZMAN FRANCIS DAVID
IPC: H01H23/16
Filed: 1960-12-14
Abstract: 989,483. Snap-action switches. WALSALL CONDUITS Ltd. March 9, 1962 [Dec. 14, 1960], No. 42940/60. Heading H2B. A switch comprises a rocker member 16 having a recess 18, a cylindrical operating member 19 disposed partially within the recess and bearing directly on a movable contact bar 21, and a compression spring 22 disposed at least partially within a recess in member 19 and at least partially within recess 18 so as to constantly age member 19 against bar 21. The cone-shaped end 20 of operating member 19 moves over the curved central part of bar 21 within limits defined by an aperture in an insulating check member 31 mounted on the surface of bar 21. Alternatively the movement of the rocker may be limited by the ends of the rocker member engaging insulating plates mounted in the switch casing (Fig. 5, not shown). The rocker member is of insulating material or of metal. Specification 883,738 is referred to.
Patent GB-1486633-A (GB)
Title: Dielectric optical waveguides
IPC: H04B10/07
Filed: 1975-10-31
Abstract: 1486633 Testing fibre optics POST OFFICE 31 Oct 1975 [7 Oct 1974] 43431/74 Heading G1A In an apparatus for assessing the performance of dielectric optical waveguides 5, light from a tungsten lamp 1 is passed via a variable frequency monochromotor 2 a second order filter and launching optics 11 into the fibre 5. The optical "cladding modes", due to the waveguide's optical cladding, are removed by a "stripper" 6. The  remaining radiation modes passing through the guide 5 are then collected by a device 7 containing an index matching liquid in which the fibre is immersed. The output from an associated transducer 8 is fed to a "lock-in" amplifier 9 which also receives a reference signal from a chopper 10 positioned as shown. The amplifier 9's output is supplied to a chart recorder 14 along with 'wavelength markers" from the monochromotor 2. The device for collecting the radiation may be an integrating sphere. In both cases the fibre is immersed in an "indexing matching" liquid of refractive index slightly higher than the fibre core. The launching optics may be used to send light in symmetrically or asymmetrically relative to the fibre, depending upon the modes being investigated.  A source of rear illumination 9 is provided to assist in aligning of the optics. Formulae and examples are disclosed.
Patent GB-1290773-A (GB)
Title: Bundling strap
Inventor: KOHKE STEPHEN JOHN
IPC: F16L3/233
Filed: 1970-09-11
Abstract: 1290773 Clamps THOMAS & BETTS CORP 11 Sept 1970 [11 Sept 1969] 43586/70 Heading E2B The tail 22 of a bundling strap which is frictionally held in a head 26, 28 has scorings or notchings as 32, 36, on one or both sides or edges to facilitate the breaking off of the excess length after bundling, by twisting or bending. The scoring leaves 50-90% of the strap section to prevent inadvertent breaking.
Patent GB-985345-A (GB)
Title: A method of blending and compacting green moulding sands and apparatus for measuring the tensile strength of the green sand
IPC: G01N3/08
Filed: 1962-11-20
Abstract: 985,345. Mould and core materials. W. PATTERSON, and D. BOENISCH. Nov. 20, 1962 [June 19, 1962], No. 43801/62. Drawings to Specification. Heading B3F. [Also in Division G1] A method of blending and compacting moulding sands is characterized in that additions are made to the sand in such quantities, and the sand is compacted to such a degree that the tensile strength of the sand in the finished mould has its maximum possible value. The sand is preferably blended so that its tensile strength reaches its maximum when the degree of compaction is still relatively low. The Specification also discloses a method of and apparatus for determining the tensile strength of the moulding sand (see Division G1).
Patent GB-954515-A (GB)
Title: Means for cleaning the interior of vehicles
IPC: B60S3/00
Filed: 1961-12-07
Abstract: 954,515. Cleaning by air jets; self-feeding brushes. R. E. COX. March 4, 1963 [Dec. 7, 1961], No. 43811/61. Headings A4F and A4K. Means for cleaning a vehicle floor comprises a nozzle 10 connected to a supply of compressed air and having at least two divergent outlet ports 12, 14 to provide two divergent streams of air to displace dirt from opposite sides of a centrally disposed gangway to a collecting point. In addition the nozzle may have a third air outlet port 13 and a pipe 15 for supplying water to reduce the raising of dust. A brush 16 may also be secured to the nozzle for dislodging dirt.
Patent GB-1421042-A (GB)
Title: Method of protecting metal melts
IPC: C22B9/10
Filed: 1973-09-20
Abstract: 1421042 Alkali metal borosilicate glass VEREINIGTE DEUTSCHE METALLWERKE AG 20 Sept 1973 [22 Sept 1972 8 May 1973] 44280/73 Heading C1M [Also in Division C7] The surface of a melt of metal or alloy (e.g. brass) is protected by covering the surface with a glass consisting of, by weight, 10-70% B 2 O 3 , 5-65% SiO 2 , and a total of 5-40% of one or more of Na 2 O, K 2 O and Li 2 O. The glass may be applied to the melt in finely divided form (e.g. of size such as to pass a 60 Ám. mesh), the glass having previously been melted and then size reduced. Glasses exemplified have softening points of 680-804‹ C. The molten glass covering is stated to provide protection against the furnace atmosphere, to reduce radiation cooling, and to assist in removal of impurities by slag or dross formation.
Patent GB-1391614-A (GB)
Title: Nicotine fortification of smoking products
IPC: A24B15/30
Filed: 1971-09-23
Abstract: 1391614 Tobacco compositions &c IMPERIAL GROUP Ltd 21 Sept 1972 [23 Sept 1971] 44370/71 Heading A2C Smoking materials and products thereof, especially reconstituted tobacco or tobacco substitutes, are fortified with nicotine by the addition of a nicotine derivative of a polyuronic acid. In the examples, nicotine pectinate or nicotine alginate are incorporated in a refined slurry of tobacco winnowings and general tobacco offal, and cast to form a sheet. Also a tobacco substitute sheet is formed by casting a mixture containing slow-set citrus pectin, CaCO 3 , K 2 CO 3  diatomaceous earth, MgHPO 4 , TiO 2 , citric acid, glycerol, and nicotine pectinate. The sheets are shredded and used as cigarette fillers. In another example, cut rolled tobacco stem is treated with nicotine pectinate solution.
Patent GB-1190038-A (GB)
Title: Improvements in the Manufacture of Whiskers of Refractory Oxides
IPC: C01F7/422
Filed: 1967-09-29
Abstract: 1,190,038. Whiskers of refractory oxides. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 29 Sept., 1967 [30 Sept., 1966], No. 44494/67. Heading C1A. Whiskers of refractory oxides are made in a process in which a metal source, which may be a metal, alloy or refractory oxide, is oxidized at a high temperature by the reduction of an oxide in its proximity in a reducing atmosphere of hydrogen or hydrocarbon in the presence of potassium chloride and traces of iodine or sodium chloride and traces of iodine. The oxidation of aluminium to form alumina whiskers is described and the process is said to be suitable for the production of beryllia or chromia whiskers.
Patent GB-1043145-A (GB)
Title: Polyolefin compositions
IPC: C08K5/3465
Filed: 1963-11-14
Abstract: Polyolefins are stabilized against light by the incorporation therein of quinoxaline compounds of the formula <FORM:1043145/C3/1> or their Group I or Group II or transition metal salts of the formula <FORM:1043145/C3/2> wherein R1, R2, R3, R4 stand for hydrogen, halogen, C1- 18 alkyl, C1- 18 alkoxy, or aryl groups, R5, R6 and R8 stand for hydrogen, halogen, hydroxyl, C1- 18 alkyl, C1- 18 alkoxy, or aryl groups, R7 is hydrogen, halogen, C1- 18 alkyl, C1- 18 alkoxy or aryl group and, in addition, in Formula I, is an aryl group substituted by C1- 18 alkyl, C1- 18 alkoxy or halogen.  A synergistic effect is observed with conventional stabilizers.
Patent GB-1318540-A (GB)
Title: Gas turbine engine of modular construction
IPC: F02C3/10
Filed: 1970-09-21
Abstract: 1318540 Gas turbine engines MOTORENUND TURBINEN-UNION MUNCHEN GmbH 21 Sept 1970 [19 Sept 1969] 44944/70 Heading F1G A gas turbine engine comprises a gas generator module which module comprises a compressor, a compressor-drive turbine and gas ducting for conducting air between the compressor and an air pre-heater and between the air pre-heater and a combustion chamber and between the combustion chamber and the compressor-drive turbine, a power turbine module which module comprises a power turbine and further gas ducting for conducting the engine gases from the power turbine to the air pre-heater and a mounting frame comprising the air pre-heater, the two modules being removably securable to the frame in operative relationship with the air pre-heater and in operative relationship with the combustion chamber. The engine shown comprises a support frame 1 which is of U-shape in plan view Fig. 2, the arms of the U constituting air pre-heater casings 12, 13. The gas generator module comprises a compressor 22a and turbine 22b mounted on a shaft 22 the assembly being supported in the annular member 16 of the support frame. Air from the compressor discharges through outlet 18 to the air pre-heaters thence to the combustion chamber (not shown), which is mounted on flange 19, the gases being then directed by guide vanes 24 on to the turbine 22b. The power turbine module comprises two parts 3a, 3b also a power turbine 34a which is provided with variable inlet guide vanes 42, the turbine being mounted on a shaft 34 which drives an output shaft 37 through gearing 34b, 38. The gases discharge from the turbine 34a through outlet 35 to the air pre-heaters.
Patent GB-1400714-A (GB)
Title: Gradient making device
IPC: B01F15/04
Filed: 1971-09-28
Abstract: 1400714 Mixing apparatus G D SEARLE & CO Ltd 13 Sept 1972 [28 Sept 1971] 45134/71 Heading B1C A device for making an isokinetic liquid density gradient in a centrifuge tube 27 comprises a closed mixing chamber 40 containing initially a liquid (sucrose) of lower concentration which is displaced by liquids of higher concentration into the tube 27 through a capillary tube 25, the open end of which is close to the bottom of the tube 27. The more concentrated liquid is supplied from a burette 44 having an optical level sensor 45 which closes a pinch-cock 43 and may stop any pump included in lines 26, 46, when sufficient liquid has been supplied to fill the tube 27 to the desired level; as the concentration in chamber 40 continuously increases, the more dense liquid will continuously displace the less dense upwards as it enters tube 27. Alternatively a sensor-associated with tube 25 may directly sense the level in tube 27. There is a magnetic stirrer 41 in chamber 40. The tube 27 is secured and centred between conical recesses in fixed and sliding blocks 28, 29 respectively and the capillary tube 25 is supported by a sliding block 23 which can be raised slowly to avoid turbulence by a variable speed motor (13, Figs. 1-3 not shown). A plurality of gradient-making devices may be mounted on a common stand having a common motor to raise all the capillary tubes simultaneously.
Patent GB-1169637-A (GB)
Title: Menthol Inhalant Device
Inventor: BROADLEY WILFRED
IPC: A24F42/60
Filed: 1967-10-04
Abstract: 1,169,637. Pocket inhalers. INTER-ALIA PHARMACEUTICAL SERVICES Ltd. 22 May, 1968 [4 Oct., 1967], No. 45201/67. Heading A5T. A menthol inhalant device simulating a cigarette or cigar, has a white polystyrene tube 1, a nylon mouthpiece 3 spigoted or screwed into the tube, a stick 9 of menthol (alternatively, menthol crystals or mentholated cotton wool) cushioned between two plugs 8 of plastics foam or cotton wool, a polystyrene closure piece 5, grey and faintly striated on the surface to simulate ash, held to the plastics foam by a spike 6, a disk 7 of bright yellow metal foil simulating incandescence and air holes 10. In another construction, air is admitted through radial slots in an integral closed top. Compression of the mouthpiece spigot against the plastics foam can serve to control the through-flow of air.
Patent GB-1128839-A (GB)
Title: Water level detectors
Inventor: WALL TERENCE RICHARD
IPC: G01F23/24
Filed: 1966-10-11
Abstract: 1,128,839. Liquid level indication. THOMAS ELECTRONICS Ltd. Oct. 11, 1966, No. 45368/66. Heading G1H. In a liquid level detector, for detecting a high level of a liquid having a good electrical conductivity, the secondary of a transformer T 1  is coupled to probes E, F and the primary together with a transistor TR 1 , resistors R 1 , R 2 , R 3  and capacitors C 2 , C 2  form an oscillatory circuit, and the arrangement is such that under normal conditions no liquid is present between probes E, F and as a result a high impedance and small load on the transformer secondary maintains oscillations in the transformer primary, but, when the probes E, F are short circuited by liquid the oscillations in the primary circuit are damped out and a lamp L is lit to full intensity.
Patent GB-1199948-A (GB)
Title: Glass Melting Furnace and Method of Operating Same
IPC: C03B5/235
Filed: 1967-10-05
Abstract: 1,199,948. Glass melting furnaces; mounting burners. OWENS-ILLINOIS Inc. 5 Oct., 1967 [8 June, 1967], No. 45426/67. Heading F4B and F4T. A reversible, regenerative, oil-fired glass melting furnace, has burners 21 mounted in ports 18 spaced along the side walls with passageways 19 communicating with the regenerators, each of said burners comprising an outer water jacket 30 with refractory &c. casing 34 and an upper side port 29, a rotary inner burner tube 35 carrying a spray nozzle 38 and a crank arm 49 with a link 50 pivotally attached to a pivot block 51 clamped to a drive rod 52. A flexible pipe 46 supplies compressed air to the space between tube 35 and the inner wall 27 of the water jacket, said air serving to blow excess oil from the port 29 when the burner is out of use. On reversal of the firing, drive rod 52 is actuated by an hydraulic motor so that linkage 49, 50 rotates each burner tube 35 to move the nozzle 38 out of alignment with the port 29, blocking said port. In a modification (Fig. 9), each burner tube 35 is movable axially in the jacket 30 by an individual hydraulic motor to block the port 29. The masking of the burner nozzles and the supply of compressed air prevents the nozzles and their related ports 29 becoming blocked with carbonized oil, when one set of burners is not in use.
Patent GB-1438803-A (GB)
Title: Apparatus for interconnecting conductors
IPC: H01R24/00
Filed: 1973-10-03
Abstract: 1438803 Distribution arrangements WESTERN ELECTRIC CO Inc 3 Oct 1973 [6 Oct 1972] 46109/73 Heading H2E A selective interconnection apparatus comprises a mounting board, which may be a printed circuit board 101, with contact pins 102 arranged in rows 103, groups of first (input) conductors, groups of second (output) conductors and connector members for connecting between contacts in adjacent rows; each group of the first conductors is associated with a respective row (103a, 103c...) and each first conductor in a group is connected in a repeated sequence to a plurality of contacts in the associated row; each group of second conductors is associated with M respective rows (103b, 103d ...) and each conductor of a group is connected to one contact in the associated rows. Sixty-four input conductors are divided into sixteen groups of four denoted 1-4, 5-8...61-64 and are connected to alternate rows 103b, 103d.... Sixty-four output conductors are divided into two groups of thirty-two denoted 1-32 and 33-64 and are connected to alternate respective rows 103a, 103c, .... Short length connectors 121, 123 and long length connectors 122, 124 can link two adjacent or adjacent-but-one contacts so that each input contact (which appears eight times in its row and is adjacent eight output contacts) can be connected to any output contact. Each contact may comprise a pair of contacts associated with a pair of wires utilized in a telephone. Contacts may extend on both sides of the board to avoid the need for two connectors to overlie one another. Several boards may be mounted in a frame (515, Fig. 5) with automated connectors.