baber/WOPTO huggingface dataset:
Patent GB-1279903-A (GB)
Title: Processes for recovering leaked electrolyte in a fuel cell and apparatus for performing such processes
Inventor: CHERON JACQUES
IPC: H01M8/08
Filed: 1970-10-12
Abstract: 1279903 Fuel cells INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS 12 Oct 1970 [17 Oct 1969] 48348/70 Heading H1B A fuel cell 1 having separate compartments to which air and hydrogen are respectively fed through ducts 2, 4 and being supplied with potassium hydroxide electrolyte through a duct 11, is provided with means for recovering any electrolyte which has leaked into the air and hydrogen compartments. The leaked electrolyte flows by gravity from the bottom of the cell compartments into a tank 10 whence it is recirculated through the cell by a pump P. In the embodiment of Fig. 1, leaked electrolyte from the hydrogen compartment flows through a pipe 5 into a chamber 13 having an outlet normally closed by a float-valve 21. Similarly, leaked electrolyte from the air compartment flows through a container 14 and pipe 16 to a chamber 17 having an outlet 20 normally closed by a float-valve 22. The electrolyte causes the valves 21, 22 to rise to permit it to flow into the tank 10 through pipe 23. The valves 21, 22 prevent any admixture of the gases contained in chambers 13, 17 and the hydrogen is withdrawn from the chamber 13 and recirculated through the cell. Similarly, the air may be recirculated. The bulk of the electrolyte circulates to the tank 10 through a pipe 8 including a cooling unit 9. In another embodiment, Fig. 2, the chambers 13, 17 are replaced by a tank 24 having compartments 27, 28, 29 formed by partitions 25, 26, the leaked electrolyte entering the tank 10 through a pipe 33 having an inlet orifice 32. The hydrogen in compartment 27 is returned to the cell through duct 4 and cannot mix with the air in compartment 28.
Patent GB-1413132-A (GB)
Title: Surgical adhesive
IPC: C09J4/06
Filed: 1972-10-20
Abstract: 1413132 Surgical adhesives VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY I ISPYTATELNY INSTITUT MEDITSINSKOI TEKHNIKI 20 Oct 1972 48393/72 Heading C3P Surgical adhesives comprise 84-97% by weight 2-ethoxyethyl α-cyanoacrylate and 3- 16% poly-(vinyl n-butyl ether) having a molecular weight of from 4000 to 10,000. The adhesives preferably also contain 0À02-0À1% of an oil-soluble green anthraquinone dye of the formula
Patent GB-1024215-A (GB)
Title: Formed strap frame grid
IPC: H01J19/38
Filed: 1962-12-21
Abstract: 1,024,215. Grid structures. SYLVANIA ELECTRIC PRODUCTS Inc. Dec. 21, 1962 [Dec. 21, 1961], No. 48397/62. Heading H1D. A strap frame grid electrode comprises spaced side members having a cross-section as shown in Figs. 2 or 5 to provide resistance to inward bow and to permit limited rotational twisting of the side members without altering the minor grid dimension B, Fig. 2. The end portions of the side members 13, Figs. 1, 3 (not shown) are made a standard size to fit in the mica supports, irrespective of the minor grid dimension produced.
Patent GB-1033350-A (GB)
Title: Improvements in and relating to a railway track without ballast
IPC: E01B3/38
Filed: 1964-11-30
Abstract: 1,033,350. Railway track securing means. SOC D'ETUDES FERROVIAIRES. Nov. 30, 1964 [Dec. 12, 1963], No. 48637/64. Heading E1G. Railway track R is supported on blocks 3 seated in cavities 2 in a continuous surface 1 with the interposition of an elastomeric sheath C the bottom S of which has a closed cellular structure. The sheath surrounds the block 3 and is expanded to receive the block. The surface 1 is of concrete containing cement or asphalt and the blocks may be of concrete or wood joined by a rolled steel member 4. The rails R are secured to the blocks by elastic fasteners 11 and a pad 9 may be placed under the rail flange.
Patent GB-1484037-A (GB)
Title: Rotor having removable blades
IPC: B24C5/06
Filed: 1974-11-11
Abstract: The side edges (1a, 1b, 1c) of the throwing blade (1) of the disc rotors has a trapezoidal cross-section. These are pushed into radial grooves (2) in the mutually opposite discs of the rotors. The shorter side (1b) of the cross-section trapezium of the blade edge and that (2b) of the corresponding cross-section trapezium of the groove (2) form the blade outer edge and the groove base, respectively. The trapezium of the edge cross-section of the blade is dimensioned such that the chamfered edge (1c) of the blade rear side is at a distance (d) from the groove side edge (2c) opposite it. If the abrasive used has fresh grains which have not been used and have a diameter which is smaller than said distance, then the blade, after releasing the sprung fastening device pressing it cross-sectionally, can be removed in a simple manner and a new blade can be installed in a correspondingly simple manner. <IMAGE>
Patent GB-1085916-A (GB)
Title: O-acyl hydroxylamines
Inventor: YOUNG GEOFFREY TYNDALE
IPC: C07K5/06
Filed: 1964-12-01
Abstract: Novel carboxylic acid esters of disubstituted hydroxylamines of the formula HO.NR1R2, other than acetic and benzoic acid esters, wherein R1 and R2 each represent alkyl or aralkyl groups or jointly with the nitrogen atom represent a heterocyclic ring, are prepared by reacting an appropriate carboxylic acid or functional derivative thereof with the said disubstituted hydroxylamines.  The carboxylic acid reactant is preferably an amino acid and the N-protected product may be further reacted with an amino acid to form a peptide or, alternatively, hydroxylamine esters of simple carboxylic acids may be further reacted with an amine to form an amide.  Examples describe the preparation of N-benzyloxycarbonyl-L-leucine 1-piperidyl ester, N-benzoyl - L - leucine 1 - piperidyl ester, N - benzyloxycarbonylglycyl - phenylalanine 1 - piperidyl ester, N - benzyloxycarbonyl-glycine 1 - piperidyl ester, N - benzyloxycarbonyl - L - phenylalanine 1 - piperidyl ester, N - benzyloxycarbonyl - L - asparagine 1 - piperidyl ester, N - benzyloxycarbonyl - L - leucylglycine ethyl ester, N - benzoyl - L - leucylglycine ethyl ester, N - benzyloxycarbonyl - L - phenylalanylglycine ethyl ester, N - benzyloxycarbonyl - L - phenylalanyl - L - leucine methyl ester, N - benzyloxycarbonyl - L - asparaginylglycine ethyl ester, N-benzyloxycarbonylglycyl-phenylalanine, N - benzoyl - L - leucylglycine, O - (benzyloxycarbonylglycyl) - N,N - diethylhydroxylamine, O - (phthaloylglycyl)-N,N - dibenzylhydroxylamine, benzyloxycarbonyl - L - valine 1 - piperidyl ester, benzyloxycarbonyl - L - valylglycine ethyl ester, N-benzyloxycarbonyl - S - benzyl - L - cysteine 1 - piperidyl ester, N-benzyloxycarbonyl-S-benzyl-L-cysteinylglycine ethyl ester, benzyloxycarbonyl - glycylglycine 1 - piperidyl ester, benzyloxycarbonylglycylglycylglycylglycine ethyl ester, O - (benzyloxycarbonyl - L - leucyl) - N,N - dimethylhydroxylamine, benzyloxycarbonyl - L - leucylglycine ethyl ester, phthaloylglycine 1 - piperidyl ester, phthaloylglycylglycylglycine ethyl ester, benzyloxycarbonylglycyl - L - tyrosine ethyl ester, benzyloxy-carbonyl - beta - cyano - L - alanine 1 - piperidyl ester, 1 - phenylacetoxypiperidine, and N - benzyl -1-phenylacetamide.  1 - Hydroxypiperidine is prepared by oxidation of 1-ethylpiperidine with hydrogen peroxide.
Patent GB-1522000-A (GB)
Title: Dockboard having lip latching mechanism
IPC: B65G69/28
Filed: 1975-11-28
Abstract: 1522000 Loading dock lip mechanism KELLEY CO Inc 28 Nov 1975 [13 Dec 1974] 48924/75 Heading B8E A loading dock having a ramp 3 urged by a spring assembly 4 to pivot upwards upon the release of a hold-down device 7 has a mechanism to raise a lip 8 as the ramp is trodden down from its uppermost position. The lip 8 with a lifting lug 11 is pivoted at 9 on the ramp 3 and is raised by a rod 14 connected by a toggle link 17 to brackets 21. From the inoperative position, Fig. 1, as the ramp 3 rises the toggle linkage will straighten until a pin 22 enters a notch 26 in a latch bar operating means 23 in which position the toggle is locked and as the ramp 3 is lowered to the Fig. 3 position the rod 14 pushes out the lip 8 up to its nearly fully extended position after which, Fig. 4, as the vehicle bed 37 is reached the pin 22 is pivoted out of the notch 26. Thus when the ramp 3 is subsequently returned to the Fig. 1 position the lip 8 is free to fall into its pendant position.
Patent GB-1116494-A (GB)
Title: Improvements in the ventilation of tunnels
Inventor: BECKETT ALLAN HENRY
IPC: F24F3/16
Filed: 1965-11-11
Abstract: 1,116,494. Ventilating tunnels. SIR BRUCE WHITE, W. E. GELSON, A. H. BECKETT, and J. W. T. TAPP. 31 Oct., 1966 [18 Nov., 1965], No. 49064/65. Heading F4V. A ventilation system for tunnels comprises several air conditioning units spaced along the tunnel oeiling. Warm exhaust air from the tunnel enters a heat exchanger 20 via an intake 24 by convection. It is passed over the catalyst 38 which oxidizes the carbon monoxide to carbon dioxide, the carbon dioxide being separated by gravity from the remaining gases, collected at 32, and pumped from the tunnel via a pipe 36. The gases are cooled by passing over coils 26 of the heat exchanger. Condensed water is removed from a reservoir 28. The coils 26 are supplied with a mixture of liquid oxygen and liquid nitrogen, the fraction of nitrogen being such as to give the desired oxygen enrichment as the mixture is partly boiled off and fed through a pipe 42 to be mixed with the air output in a conduit 40. In a modification, the carbon dioxide is removed from the heat exchanger 20 as a solid by a screw device.
Patent GB-1481711-A (GB)
Title: Spherical void-free particle formation in spray-dried ferrites
IPC: C04B35/622
Filed: 1974-11-14
Abstract: 1481711 Ferrites XEROX CORP 14 Nov 1974 [12 Dec 1973] 49374/74 Headings C1J and C1A [Also in Division G2] Ferrite (e.g. NiZn and MnZn ferrites or Fe 3 O 4 ) particles which are substantially spherical in shape, continuous in surface area and free of interior voids are made by preparing a slurry of ferrite-forming metal oxides in a liquid, the slurry having a viscosity at 23 C of between 55,000 and 140,000 centipoise, spray-drying to form substantially spherical metal oxide beads and sintering. The metal oxides may either be added to the liquid before mixing to form the slurry or may be mixed dry before addition to the liquid to form the slurry. A flow-promoting ingredient (e.g. zirconia or alumina) may be added to the metal oxide beads to prevent bead-to-bead agglomeration and bead-to-furnace-wall sticking. A deflocculent (various acids and salts are exemplified) may be added to the slurry. A binder may also be present in the slurry. Examples describe the preparation of Ni ferrites using a deflocculent in the slurry. The ferrite particles may act as electrostatographic carrier materials, toner particles (of which many are exemplified) being capable of electrostatically clinging thereto.
Patent GB-991962-A (GB)
Title: Electrical connector
IPC: H01R24/58
Filed: 1962-12-13
Abstract: 991,962. Two-part couplings. STANDARD TELEPHONES & CABLES Ltd. Dec. 13, 1963 [Dec. 20, 1962], No. 49437/63. Heading H2E. A jack for use in explosive gas atmospheres is arranged so that as the plug 20 is connected to the jack the pin 26 bears against spring contacts 25 and on further insertion of the pin 26, an actuator spring 31 having an insulated pusher 32 is urged by the contact spring 25 to operate a micro-switch 45 which causes the contact springs to be energized. The actuator spring may bear directly on the contact spring 52 (Fig. 6, not shown) or one of the contact springs may operate the micro-switch directly (Fig. 7, not shown). The pin of the plug may be tapered in order to prevent arcing caused by the spring contacts bouncing along the pin during insertion of the pin into the jack.
Patent GB-1386897-A (GB)
Title: Gyroscopes
IPC: G01C19/12
Filed: 1972-10-26
Abstract: 1386897 Gyroscopes BRITISH AIRCRAFT CORP Ltd 15 Oct 1973 [26 Oct 1972] 49531/72 Heading G1C A gyroscope rotor 1 which is provided with a series of depressions towards which a gas jet 5 is directed for driving the rotor is provided with a flexible covering 4 which is deflectable into the depressions by the jet but which otherwise provides a smooth outer surface for the rotor. The flexible covering may comprise a rubber sleeve or a resilient metal foil having a plurality of flaps for inward deflection into the depressions, the metal foil being surrounded by one or more retaining bands.
Patent GB-1286738-A (GB)
Title: Substituted 1,3-phenylenediamine herbicides
Inventor: FEVRE CECIL WRIGHT LE
Filed: 1970-10-20
Abstract: 1286738 Substituted 1,3-phenylenediamine herbicides UNITED STATES BORAX & CHEMICAL CORP 20 Oct 1970 49849/7O Heading C2C A herbicidal composition comprises as active ingredient at least one substituted 1,3-phenylenediamine of the formula wherein X represents a halogen atom, each R 1  represents H, alkyl, or haloalkyl, and each R 2  represents (C 1 -C 6 ) alkyl, halo-(C 1 -C 6 ) alkyl, (C 2 -C 6 ) alkenyl or halo-(C 2 -C 6 ) alkenyl, together with a carrier or diluent, and when the diluent is a solvent, a surface-active agent in addition. The active ingredient may be prepated either by nitrating an appropriate phenylenediamine followed by halogenation, or by reacting 1,2,4-trihalo-5-nitrobenzene with an excess of an alkylamine. Examples are given for the production of the active ingredients and for testing the activity of the compounds. The compositions may contain other active ingredients.
Patent GB-1237729-A (GB)
Title: Improvements in or relating to hay making machines
IPC: A01D78/08
Filed: 1968-10-21
Abstract: 1,237,729. Haymaking machines. C. VAN DER LELY N.V. 21 Oct., 1968 [26 Oct., 1967], No. 49927/68. Heading A1F. A haymaking machine includes a pair of tined rake members 8, rotatably mounted at the ends of a frame beam 1, Fig. 1 (not shown), and a casing 3 extending rearwardly of the frame 1 and having releasably mounted thereon a tined shedding member in the form of rake wheels 40 and a guide plate 42. The wheels are freely rotatable about a fixed shaft 38 which is held in the frame 3 by a bearing 37 and a pin 39, the wheels intersecting the paths of the tines of the rake members 8. The shedding member may be easily released and replaced by a crop-working member in the form of a tined, drum-like tedder which is rigidly mounted to a hub 29 which is driven via a mechanism in the casing 3, Figs. 1 and 2 (not shown).
Patent GB-1488438-A (GB)
Title: Liquid cooled diesel cycle internal combustion engines
IPC: F02F1/40
Filed: 1975-12-08
Abstract: 1488438 Liquid cooling IC engines FIAT SpA 8 Dec 1975 [19 Dec 1974] 50259/75 Heading F1B A common passage 6a, 6b supplies cooling water to respective cooling spaces 14 between the cylinders 1, 2 and the outer wall of the cylinder block 12a, 12b and the inlets 8 to the spaces are defined by respective collars 8 projecting from the cylinder block wall. The inner diameters of the collars 8 may be different for each cylinder to provide the required degree of cooling. Openings 9 in the block are aligned with openings in the head 13 for flow of water to head cavity 15, outlet 16 and return to a radiator via a pipe 11. A rotary vane pump 3 pumps water through a conduit 4 to inlets 5a, 5b of the passages 6a, 6b.
Patent GB-1442670-A (GB)
Title: Production of pure 1-nitroanthraquinone
IPC: C07C67/00
Filed: 1973-10-30
Abstract: 1442670 1-Nitroanthraquinone BASF AG 30 Oct 1973 [31 Oct 1972] 50329/73 Heading C2C 1-Nitroanthraquinone is separated from a mixture containing 1-nitro-anthraquinone, optionally in admixture with 2-nitroanthraquinone together with one or more dinitro-substituted anthraquinones, by treating the mixture to effect reaction of the dinitroanthraquinone(s) with a compound containing one or more methylene groups activated by the presence in the compound of one or more carbonyl groups, the reaction being effected in the presence of from 0À1 to 10% by weight based on the total weight of the starting mixture of an initiator for the reaction and in an aprotic polar organic solvent which optionally contains water in an amount of not more than 10% by weight to form a mother liquor containing in dissolved form the material resulting from the reaction together with any 2-nitroanthraquinone present in the starting mixture and containing 1-nitroanthraquinone in undissolved form. The initiator is preferably a compound which yields nitrite, halide, thiocyanate, alcoholate or phenolate ions and the compounds containing activated methylene groups are preferably aliphatic, cycloaliphatic, araliphatic and heterocyclic unsubstituted or substituted ketones, beta-hetocarboxylic esters or amides, betacarbonyl compounds and cyclic carbonamides.
Patent GB-1475999-A (GB)
Title: Valves for vehicle wheels
IPC: B60C29/00
Filed: 1974-08-30
Abstract: 1475999 Vented plug ARCHIBALD KENRICK & SONS Ltd 30 Aug 1974 [30 Oct 1973] 50506/73 Heading B8T [Also in Division B7] A vent plug is formed by a cylindrical spigot 12 and a solid circular head 11, the spigot 12 having a vent 13 extending through the major part of the spigot to a position spaced from the head. A preferred form of the spigot 12 has lengthwise spaced, resilient annular wedgeshaped protrusions 14, 15, which extend around the spigot 12 on both sides of the vent 13. The distance between the protrusions 14, 15, and the distance between the bottom of the head 11 and the protrusion 15, is preferably equal to the depth of a wheel rim 16. The plug may be injection moulded of high density polyethylene.
Patent GB-1388907-A (GB)
Title: Silyl substituted urea derivatives
IPC: C07F7/18
Filed: 1972-11-06
Abstract: 1388907 Sylyl substituted ureas for coatings BAYER AG 6 Nov 1972 [6 Nov 1971] 50999/72 Heading B2E [Also in Division C3] Substrates may be coated and polyurethane foams impregnated with silyl-substituted urea derivatives of the formula:  wherein R is C 1-18  alkyl, C 4-14  cycloalkyl, or phenyl, R<SP>1</SP> is C 1-10  alkyl, C 4-10  cycloalkyl or C 6-10  aryl, R<SP>2</SP> is a hydrogen atom or a methyl or phenyl radical, R<SP>3</SP> is a hydrogen atom, C 1-18  alkyl, C 4-14  cycloalkyl or C 6-14  aryl, Q' is a divalent hydrocarbon radical Q is a radical of valency C derived by removal of a hydrogen atoms from a compound which contains ester, amide, urethane, thioether, acetal, urea, hydrazodicarbonamide, hydrazide and/or carbonate groups, a is 0 or 1, c is 1 to 8, d is equal to (2-a), X is an oxygen or sulphur atom or a group -NY wherein Y is a hydrogen atom, a C 1-18  alkyl or cycloalkyl group or a phenyl group (see Division C3). The silylsubstituted ureas cross-link on the substrate or in the foam by the action of moisture, the cross-linking resulting in the formation of polysiloxane bridge members. Substrates which may be coated include wood, sheet metals, woven fabrics, leather, and those of synthetic resins such as polyvinyl chloride, polyurethanes or polyesters. A list of conventional fillers for sylyl-substituted ureas is given.
Patent GB-1161609-A (GB)
Title: Treatment of Granular Materials
Inventor: JONES JOHN CLIVE
IPC: C05G3/20
Filed: 1966-11-15
Abstract: 1,161,609. Non-caking fertilizers. MIDLAND SILICONES Ltd. 25 Oct., 1967 [15 Nov., 1966], No. 51206/66. Headings C1A and C1B. [Also in Divisions C2 and C4] A granular or prilled fertilizer is coated with oil and an organosilicon compound, the coating composition being applied as an aerosol spray. The fertilizer may be a single substance or a composition; may contain ammonium nitrate, potassium chloride, urea, or a phosphate; and may have a particle size of 1-6 mm. The oil may be fuel, lubricating, vegetable, or tar oil. The oil may have a viscosity of 50-10,000 cS. at 25 C. The organosilicon compound may be dimethyldichloro, methyldichloro, propyltrichloro, phenylmethyldichloro, methyltrichloro, methyltrimethoxy, phenyltripropoxy, or dimethyldiethoxy silane; or methylhydrogen, phenylmethyl, or dimethyl polysiloxane. The coating may form 0À005-5% of the fertilizer. The silicon compound may form up to 90% of the coating.
Patent GB-1365325-A (GB)
Title: Mat for consolidating supports in mineworkings
IPC: E21D11/15
Filed: 1971-11-04
Abstract: 1365325 Metallic fabrics SALZGITTER AG 4 Nov 1971 [5 Dec 1970 17 April 1971] 51298/ 71 Heading D1K A mat, for consolidating supports in mineworkings, has longitudinal rods 2 whose ends extend beyond the transverse rods 1 welded thereto and are bent to form hooks 4 which can be fastened to frames and/or adjoining mats some or all of the rods extending further and being bent parallel to the unbent parts of the lengths and welded thereto 13, 14. Adjoining mats 9, 9a have their sides resting on the same consolidating section 8 with their hooks 4 joined by shackles or hooks or wire ropes and shackles. In a modification, a square rod 23 is bent back and twisted so that one of the corners of its end 32 is welded to a side of its main part. Different types of welds may be used Figs. 3, 4, 5 (not shown).
Patent GB-1329325-A (GB)
Title: Display device
IPC: H03K19/0185
Filed: 1971-11-08
Abstract: 1329325 Modulating light SUWA SEIKOSHA KK 8 Nov 1971 [25 Nov 1970] 51750/71 Heading H4F [Also in Division G3] A circuit for applying a relatively high voltage across a liquid crystal display cell 7 in response to a relatively low voltage switching signal, e.g. in a wrist watch, comprises at least one metal oxide semi-conductor (MOS) device. The circuit of Fig. 4 includes two complementary symmetry MOS (COS-MOS) inverters 8, 9 and 10, 11, provided with control MOS transistors 12, 13 respectively, the output of each inverter being connected to the input of the other inverter. Opposite polarity pulses are derived from a pulse input by a further COS-MOS inverter 14 and passed to transsistors 12, 13 respectively, so that a positive input pulse turns P-channel transistor 8 "ON" and N-channel transistors 9, 12 "OFF', whereby a high voltage is applied across cell 7. In the absence of a pulse, transistor 8 is "OFF" and transistors 9 and 12 are "ON" to short circuit the cell 7. In a simpler form, Fig. 3 (not shown), a single inverter, e.g. 14 per se, is connected to the high voltage source, with cell 7 being connected across the (upper) P-channel device and thereby short-circuited in the absence of a pulse. A positive pulse removes the short circuit and renders the lower device conductive to activate the cell 7.
Patent GB-1169968-A (GB)
Title: Water-Soluble Azo Dyes
IPC: C09B43/11
Filed: 1967-11-14
Abstract: 1,169,968. Water-soluble dyestuffs. E. I. DU PONT DE NEMOURS & CO. 14 Nov., 1967 [15 Nov., 1966], No. 51804/67. Heading C4P. [Also in Division D1]  The invention comprises water-soluble dyes of the general formula wherein X and Y are H or CH 3 ; P and Q are H or SO 3 M provided at least one is SO 3 M and M is an alkali metal or ammonium cation; Z is a C 1 -C 4  alkyl group and A is -OH, -N(CH 3 ) 2 , -NH 2 , -N(CH 2 CH 2 OH) 2 , -NHC 2 H 5 , -(C 2 - H 5 ) 2 , -NHCH 3 , They are prepared by reacting the corresponding azo dye unsubstituted at the 1-position in the pyrazolone radical with formaldehyde, or an agent yielding formaldehyde, and optionally either concurrently or thereafter, with ammonia or an appropriate amine. The dyes dye paper yellow.