baber/WOPTO huggingface dataset:
Patent GB-1366664-A (GB)
Title: 3 - /3 - cyanopropyl/ - cyclopenta /f/ /1/ benzopyrans and the preparation thereof
IPC: C07D311/92
Filed: 1971-08-25
Abstract: 1366664 Substituted cyclopentabenzopyrans F HOFFMANN-LA ROCHE & CO AG 25 Aug 1971 [26 Aug 1970] 39891/71 Heading C2C Novel compounds of formula where R<SP>1</SP> is primary alkyl with 1-5 carbon atoms, R<SP>2</SP> is H, lower primary alkyl or acyl, Z is carbonyl or a group of formula R<SP>7</SP> is H, lower acyl, lower alkyl, aryl lower alkyl, or tetrahydropyran-2-yl, R<SP>8</SP> is H or lower aliphatic hydrocarbyl, r and s are 0 or 1, m is 1 or 2, n is 0 or 1, and T and U are both single or double bonds, or T is double and U is single, may be prepared by reaction of where R<SP>3</SP> is H or lower alkyl, R<SP>16</SP> is OH, Cl, Br, I, lower alkoxy or and R<SP>11</SP> and R<SP>12</SP> are each independently H or lower hydrocarbyl, with  to give the compound in which Z is CO, n is 0, and T and U are both double bonds, which may be hydrogenated catalytically to the form in which only T is double, and then reacted with R<SP>2</SP>OH to give the compound in which n is 1. At any stage of this sequence, the CO group may be reduced to CHOH with complex metal hydrides and optionally esterified or etherified, and the R<SP>8</SP> group may be introduced by reduction with hydrocarbyl Mg halides or alkali metal compounds. The product may be optically active (if R<SP>16</SP> in the starting compound II is, or originated from, an optically active amino group). The preparation of compounds II is described in Specification 1,366,662.
Patent GB-1110509-A (GB)
Title: Rotary piston internal combustion engines
IPC: F02B55/06
Filed: 1966-09-07
Abstract: 1,110,509. Rotary-piston I. C. engines. NSU MOTORENWERKE, A.G. Sept. 7, 1966 [Sept.17, 1965], No.39907/66. Addition to 943, 693. Heading F1F. The rotary-piston I. C. engine according to the parent Specification is improved or modified in that a transfer port 22, or 22', is provided in each of the end walls 1, 2 of the housing, through which ports fuel-air mixture enters a working space during the induction phase of the working cycle from the passage 17, the said ports being shaped and situated in said walls such that the port 22' is uncovered by the piston later than the other port so as to increase the volumetric efficiency. During each period when only the port 22 is open said mixture flows through the cavity 21 within the piston to cool the latter; and subsequently, when the port 22' is also open, the majority of said mixture enters the working space through this port so that its flow is relatively unimpeded. The ports may be shaped and situated in said end walls so that they are obturated by the piston simultaneously; but, preferably, to effect better cooling the port 22' is closed earlier than the other port. A lubricating oil may be entrained in said mixture.
Patent GB-954800-A (GB)
Title: N-thiazolylthiopyrrolidines and their use in the vulcanisation of rubber
IPC: C07D417/12
Filed: 1960-11-23
Abstract: The invention comprises compounds of the formula: <FORM:0954800/C2/1> in which R and R1 are alkyl groups containing 1 to 6 carbon atoms and R2 is a hydrogen, chlorine or bromine atom or a nitro, monocyclic aryl or C1-6 alkyl or alkoxy group. The compounds are prepared by reacting mercaptides of the general formula: <FORM:0954800/C2/2> with N-halo compounds of the general formula: <FORM:0954800/C2/3> in which R, R1 and R2 are as defined above, X is bromine or chlorine, and M is an alkali metal. The N-halogeno-pyrrolidine is prepared by treatment of the corresponding pyrrolidine with an aqueous solution or suspension of an alkali or alkaline earth metal hypochlorite or hypobromite. The alkali metal salts of the 2-mercapto-benzothiazoles may be prepared by dissolving the corresponding 2-mercapto-benzothiazole in a solution of alkali metal hydroxide. Examples are given. The compounds of the invention are used as rubber vulcanisers (see Division C3).ALSO:Delayed action accelerators for sulphur vulcanisable diene rubbers comprise compounds of the formula: <FORM:0954800/C3/1> wherein R and R1 are alkyl groups containing 1 to 6 carbon atoms and R2 is a hydrogen, chlorine or bromine atom or a nitro, monocyclic aryl or C1- 6 alkyl or alkoxy group (see Division C2).  Several suitable rubbers and vulcanising agents are specified. The accelerators of the invention are normally used in amounts of 0.1 to 5% by weight of the rubber and may be used alone or in combination with other accelerators, several being specified.  Examples describe the vulcanisation of compositions containing an accelerator of the above general formula, smoked sheets rubber, carbon black, zinc oxide, stearic acid, saturated hydrocarbon softener, sulphur, antioxidant and, optionally, N-nitrosodiphenylamine.
Patent GB-1285755-A (GB)
Title: Changeable highway sign and motorist aid system
IPC: E01F9/619
Filed: 1969-08-15
Abstract: 1285755 Bearings KARL SCHMIDT GmbH 12 Aug 1969 40245/69 Heading F2A [Also in Divisions B3 and C7] A bearing member has an iron or steel backing on to which is cast, sintered or plated a bearing liner comprising an aluminium alloy containing 2 to 15% by wt. lead, more than 6 to 15% silicon and the balance aluminium. The alloy may also contain 0À01 to 5% tin, 0À01 to 5% magnesium, manganese, iron and/or nickel, 0À01 to 10% copper and/or zinc, and 0À01 to 3% arsenic and/or calcium. A composite strip of the alloy on a steel backing may be made by rolling together a strip of alloy and a steel strip or by casting the alloy on to the heated steel strip (see Division B3) or by sintering alloy powder scattered on the steel strip (see Division C7). Bearings are produced from the composite strip in a conventional manner.
Patent GB-1163810-A (GB)
Title: Process for the Production of Polyarylmethylene Polyamines and Mixtures Thereof
Inventor: ROHE ERNST
IPC: C08G73/02
Filed: 1967-09-08
Abstract: 1,163,810. Polyarylmethylene polyamines. FARBENFABRIKEN BAYER A.G. 8 Sept., 1967 [8 Sept., 1966], No. 41251/67. Heading C2C. Aromatic amines of the general formula in which R 1  and R 2  represent hydrogen, alkyl, cyoloalkyl or aralkyl; R 3  represents hydrogen, alkyl, cycloalkyl, aralkyl, phenyl, halogen, nitro or alkoxy, and x is 0 or 1, are reacted with formaldehyde or a formaldehyde-yielding compound in a molecular ratio of from 1À2 : 1 to 10 : 1 in the presence of acids in a closed reaction space at 50-500‹ C. and in the presence of carbon dioxide under superatmospheric pressure to give polyarylmethylene polyamines of formula or higher homologues thereof. If desired the reaction may be carried out in the presence of a C 1 -C 4  alcohol.
Patent GB-1131362-A (GB)
Title: Foldable door with hollow double hinge
Inventor: LIMITED LENSCRETE
IPC: E06B3/48
Filed: 1965-09-29
Abstract: 1,131,362. Flexible hinges; folding doors. PANELFOLD DOORS Inc. 29 Sept., 1965, No. 41309/65. Headings E1J and E2F. A hollow flexible hinge strip of a vinyl plastic has flanges 58 engaged in grooves in the edges of panels 42 of a folding door. The flanges may have V-shaped beads 60 engaging enlarged passages 46 thereby preventing the flanges from being pulled out of the grooves. Tapered flaps 62 engage the panel edges and form effective seals. Projections 56 stiffen the outer wall 50 of the hinge strip. In an alternative form Fig. 4 (not shown) the flanges 36 have ribs 38 inclined towards the wall 26 instead of the beads 60; in this form adhesive may be used to assist fixing the flanges 36 in the grooves. The resilience of the hinge strip assists in keeping the door panels in the unfolded position. Reference has been directed by the Comptroller to Specification 1,064,191.
Patent GB-1271036-A (GB)
Title: Process for improving the food value of micro-organisms propagated on hydrocarbon substrates
Inventor: GATELLIER CLAUDE
IPC: A23J1/18
Filed: 1970-08-27
Abstract: 1,271,036. Reducing nucleic acid content of micro-organisms. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. Aug.27, 1970 [Sept.2, 1969], No.41309/70. Heading C6F. The nucleic acid content of the cells of microorganisms previously propagated upon hydrocarbon substrates is reduced by contacting the mirco-organism with a molecular oxygen - containing gas and with an aqueous nutritive medium containing at least one propogation inhibitor of such nature and in such quantity that the propagation is stopped without substantially disturbing the other vital functions of the micro-organism cells. Inhibitors: antibiotics such as chloramphenicol, cycloheximide, cycloheximidine, mitomycin C or actinomycin and tetracyclines; amino acid analogues such as 5-methyltryptophane (L-tryptophane), parafluorophenylalanine (L-phenylalanine), and ethionine (L-methionine); analogues of purine and pyrimidine bases such as 8-azaguanine and malonyl-urea; and carbon dioxide. The treatment is typically performed in an aqueous medium containing sources of nitrogen and phosphorus and between 1 and 1000 micrograms per litre of inhibitor (excepting carbon dioxide), but deficient in growth factors, oligoelements or essential ions. The Examples relate to reducing the nucleic acid content of Candida lipolytica cells grown on de-waxed gas-oil. In a comparative experiment involving washing the cells before treating them with inhibitor, no reduction in nucleic acid content was observed.
Patent GB-1088369-A (GB)
Title: Process for the manufacture of ferromanganese
IPC: C22C35/00
Filed: 1966-09-15
Abstract: A process for the manufacture of low or medium carbon ferro-manganese comprises heating a charge of limestone or burnt lime, a manganese ore and steel scrap to a temperature of 1300 DEG -1600 DEG C. in a fuel fired rotary furnace, adding molten manganese silicide, rotating the furnace until the reaction is complete and tapping the ferro-manganese produced.  Some of the limestone or burnt lime may be replaced by raw or burnt dolomite and solid manganese silicide, manganese ore or steel may be added to the furnace while it is being rotated.
Patent GB-1330512-A (GB)
Title: Electrical busbar assembly
IPC: H02G5/00
Filed: 1970-08-27
Abstract: 1330512 Moulding bus-bar assemblies LICENTIA PATENT-VERWALTUNGS GmbH 27 Aug 1970 [30 Aug 1969] 41389/70 Heading B5A [Also in Divisions H1 and H2] Electrical bus-bars are mounted in a foamed plastics moulding 46 which supports the busbars in spaced relationship without an external casing. The Figs. 2a and 2b show three bus-bars 40, 41, 42 in the body 46 of a material such as foamed polyurethane thermosetting plastics. Branch connections to the bus-bars may be made in apertures 47, 48, 49. Securing hooks 50 may have parts embedded in the body 46.
Patent GB-980361-A (GB)
Title: Improvements in the preparation of cast iron
IPC: C21C1/08
Filed: 1962-11-02
Abstract: Grey cast iron is caused to have a ferrite-free structure by seeding, preferably either in the mould or the ladle, with 0.05-0.19% by weight of antimony.  A preferred iron composition is, in percentage by weight: .C.2.8 -3.7 .Si.1.6 -2.8 .Mn.0.4 -1.2 .P.0.15-0.8 .S.0.04-0.18 .Fe.balance The addition of antimony also results in coarsening of the graphite structure.  Specifications 360,905 and 424,781 are referred to.
Patent GB-1114429-A (GB)
Title: Apparatus for producing monophase and polyphase alternating currents from direct current
IPC: H02M1/08
Filed: 1965-09-30
Abstract: 1,114,429. Inverting. SIEMENS-SCHUCKERTWERKE A.G. 30 Sept., 1965 [30 Sept., 1964], No. 41646/65. Heading H2F. An inverter comprises an analogue/digital converter ADW for converting a variable amplitude D.C. input signal into a pulse frequency modulated signal which controls the operation of stepping circuits. Outputs are taken from the stepping circuits to control digital/ analogue converter DAW which produce output sine waves having a frequency dependent on the amplitude of the applied D.C. input. The amplitude of the output is controlled by a unit AS. The units DAW, one per phase, comprise four converters, each converter being formed by a number of parallel connected resistors which may be selectively switched into circuit by associated static switches, Figs. 1, 2 (not shown). The sinusoidal output signal, Fig. 4, may be considered as consisting of four basic wave shapes and each converter is arranged to simulate one of these, the stepping circuit determining which is selected. For example, during time period I, phase R is a positive voltage with a positive slope A, phase T is the same voltage with a negative slope A, and phase S is the sum of A and A with a negative sign. Thus, each unit DAW is arranged to produce the four waveforms ŒA, Œ #A. During each time period I-VI stepping circuit I selects either A or A in each unit DAW and a reversible counter VG determines whether the waveform selected is positive or negative going. The counter VG is stepped forward or backwards by a further stepping circuit II under the control of a circuit DV in dependence on the required direction of rotation of the phases. In a modification, Fig. 8 (not shown), the units DAW synthesize the waveform from the portions a, - a, b, - b shown in Fig. 4, and the waveform is divided into twelve periods.
Patent GB-1504157-A (GB)
Title: Method and apparatus for making ampoules of thermoplastic film material with non-return valves
IPC: B31B19/84
Filed: 1975-10-10
Abstract: 1504157 Valved ampoule GOSUDARSTVENNY N I PROEKT KONSTRUKTOR I PROEK UGOL INST 10 Oct 1975 [25 Oct 1974 (2)] 41682/75 Heading B8K [Also in Division B5] A valved ampoule comprises an in-folded portion 12 which is foldably connected to one side wall and connected to an opposite side wall by spaced point or elongate welds 14. As shown in Fig. 3a, the ampoule may comprise a further in-folded portion 12 foldably connected and welded to said opposite side wall.
Patent GB-1192473-A (GB)
Title: Safety Closures
Inventor: HENDERSON EDWARD
IPC: B65D83/04
Filed: 1967-09-13
Abstract: 1,192,473. Container closures; pill boxes. E. HENDERSON. 13 Sept., 1967 [24 March, 1967], No. 41706/67. Headings B8P and B8T. A container for pills &c., has a discharge opening 11 normally closed by two gates 18, 19 both of which must be drawn back by knobs 24, 29 against the resistance of springs 22 to allow discharge of the contents. In a modification, Fig. 5, the discharge opening is in a member 31 permanently fixed to a bottle &c. 30.
Patent GB-417277-A (GB)
IPC: B23B3/28
Abstract: 417,277. Making camshafts &c. SUNBEAM MOTOR CAR CO., Ltd., and MORRIS, J., Upper Villiers Street, Wolverhampton. July 27, 1933, No. 21121. [Class 83 (iii).] Lathes ; tools.-In a machine of the lathe type for making camshafts for internal-combustion engines or similar eccentric workpieces, the tool g comprises a side cutting- edge h terminating in a rounded extremity i which engages the workpieces and extends from the upper towards the lower side of the tool, the part i preferably having a radius of from 1-2 mm. A number of tool holders d may be mounted on a longitudinal slide a traversed along the work-piece the tools being controlled to impart the required profile to the cams b by means of a master camshaft c engaged by rollers f on the tool-holders, Fig. 2.
Patent GB-880533-A (GB)
Title: Means for determining distance and attitude of objects by means of wide angle lens systems
IPC: B22F7/02
Filed: 1957-12-12
Abstract: 880,533. Determining distance and attitude of objects; photographic cameras. AUSTRALIA, COMMONWEALTH OF. Dec. 12, 1957 [Dec. 24, 1956], No. 41891/59. Divided out of 880,534. Classes 97(1) and 98(1). Means for determining distance and attitude of objects includes a pair of lens systems with solid angle fields of view in excess of 180 degrees, the systems being spaced apart by a given distance and facing in opposite directions to provide said fields with an overlapping zone from which a cross-reference on objects in the zone can be obtained. As shown in Fig. 1, two cameras 25, 27 with oppositely directed wide angle lens systems 26, 28 as described in Specification 880,534 are mounted on a camera pod 24 at one end of an aircraft wing. Each lens system 26, 28 covers a field of view of 210 degrees so that there is a full overlap of 30 degrees whereby an object within this full overlap is photographed by the two cameras and can then be cross-referenced for distance measurement if the length of the base line 31 is known. If the aircraft's position is known, the orientation of the object with respect to known reference axes can also be determined. In an alternative form, the two camera lenses are mounted so as to point upwardly and downwardly respectively. Two pairs of oppositely directed camera lenses may be employed, the two lenses of each pair being arranged on secondary base lines which intersect a main base line at a known distance apart.
Patent GB-993287-A (GB)
Title: Waste pipe outlet strainer
Inventor: BEER DONALD COURTNEY
IPC: E03C1/264
Filed: 1962-11-06
Abstract: 993,287. Strainers. VORTEX PRODUCTS (HAIRDRESSERS' SUNDRIES) Ltd. Oct. 28, 1963 [Nov. 6, 1962], No. 41926/62. Heading A4N. [Also in Division B1] In a strainer for a waste outlet especially for a hairdresser's basin, upwardly projecting hair-entangling spikes 16 may be provided on a zig-zag folded strip 10, of plastic or waxed card, having supporting lugs 17. The strainer may be discarded after use. In another form (Figs. 1 and 2, not shown) the lugs 17 are formed as upwardly and outwardly projecting barbed spikes and the spikes 16 may be omitted.
Patent GB-1381284-A (GB)
Title: Non-woven webs
IPC: D04H13/00
Filed: 1971-09-09
Abstract: 1381284 Reinforced web extrusion die MONSANTO Ltd 8 Aug 1972 [9 Sept 1971] 42123/71 Heading B5A [Also in Division D1] A fibrous web is produced by extruding a foamed thermoplastics sheet having reinforcements in the plane of the sheet and drawing the web at right angles to the direction of extrusion and, optionally, also in the direction of extrusion to a lesser extent. The reinforcements may comprise glass or metal filaments or parallel ribs of the foamed material produced by extruding the sheet from a slit die, or an annular die, the die having regularly spaced circular orifices of greater diameter than the slit height. An annular die gives a tubular product that is slit or collapsed to form a double-layer sheet. Alternatively the reinforcement may comprise a different and/or unfoamed plastics conveyed to orifices 10 spaced at intervals along slit 7 by a pipe 9. The reinforcements may be extruded at a greater rate than the foamed material so that the reinforcement is in overlapping sinusoidal fashion, thereby forming a reinforcing network. The reinforcements may comprise 5 to 60% by total weight of the web.  The foamed material is a thermoplastic or elastomeric polymer or copolymer of acrylonitrile, methacrylonitrile, vinyl chloride, vinylidene chloride, vinyl acetate, ethyl acrylate, methyl methacrylate, low or high density ethylene, crystalline propylene, butene, pentene hexene, butadiene, styrene, α-methylstyrene, vinyl bromide, vinylpyrollidone, methylvinylpyridine, or polyethylene terephthalate, nylon 6, 11 or 66, polyurethane, rayon, cellulose acetate, or cellulose acetatebutyrate. The sheet material includes 3 to 30% by weight of a blowing agent, either a volatile substance or one that decomposes to give a gas. Examples are given. Silica, alumina or zinc stearate may be used as nucleating agent. The reinforcement may be of flexible material, e.g. nylon, polyacrylonitrile polyethylene, polypropylene, polyethylene terephthalate or segmented polyurethane or bicomponent filaments with an applied or built in crimp. Alternatively less flexible materials, e.g. styrene optionally copolymerized with acrylonitrile and/or butadiene, or glass or metal may be used. The extruded sheet is drawn 3 to 20 fold, preferably 6 fold, at from temperature 0‹ to 200‹ C., such that an amorphous material is drawn above its glass transition temperature whilst a crystalline material is drawn below its melting point. Heating or cooling means may be inserted between the extruding and drawing means. The example describes the extrusion through the die of Figs. 3 and 4 of 10 kg./hr. of molten polypropylene having 5% talc and into which isobutylene is pumped. The reinforcements are formed by the extrusion of 1À5 kg./hr. polypropylene (melt index 4). The die has shaped cooling surfaces that maintain it at 168‹ C. The 3¢ mm. thick sheet of density 370 kg./m.<SP>3</SP> was drawn 6 : 1 at 155‹ C. at right angles to the direction of extrusion and then 2 : 1 at 135‹ C. in the direction of extrusion.
Patent GB-934837-A (GB)
Title: Glass composition
IPC: C03C13/00
Filed: 1961-11-27
Abstract: 934,837. Glass fibre compositions. JOHNSMANVILLE CORPORATION. Nov. 27, 1961 [Dec. 19, 1960], No. 42260/61. Class 56. A glass composition suitable for drawing fibres consists essentially of the following in per cent by weight: The percentage of Al 2 O 3  includes any Fe 2 O 3  or TiO 2  which may be present as impurities.
Patent GB-1532478-A (GB)
Title: Stabilisation of vinyl chloride polymers by lactone compounds
IPC: C08L33/00
Filed: 1976-10-12
Abstract: 1532478 Stabilized vinyl chloride polymers RHONE-POULENC INDUSTRIES 12 Oct 1976 [14 Oct 1975] 42334/76 Heading C3K Vinyl chloride homopolymers or copolymers, or chlorinated derivatives thereof, contain as heat stabilizer a combination of (a) 0À1-5% (by wt. of the polymer) of one or more conventional divalent metal carboxylate salt stabilizers and (b) 0À05-5% of an α-acyl lactone of the formula in which R is a C 2-30  monovalent aliphatic radical or a monovalent aromatic radical and R<SP>1</SP> is an optionally substituted, divalent linear or branched C 2-30  hydrocarbon radical or a divalent cyclic radical.
Patent GB-1380798-A (GB)
Title: Dicarboxylic compounds having 2,4-quinazolinedione rings and polyester resins derived therefrom
IPC: C09D167/00
Filed: 1972-09-13
Abstract: 1380798 Dicarboxylic compounds having 2,4- quinazolinedione rings INSTITUT FRANCAIS DU PETROLE 13 Sept 1972 [15 Sept 1971 10 April 1972] 42565/72 Heading C2C [Also in Division C3]  Novel dicarboxylic compounds have the general formula wherein R is a divalent (C 5 -C 20 ) aliphatic, alicyclic or aromatic radical; R<SP>1</SP> is a hydrogen atom or a (C 1 -C 10 ) alkyl or cycloalkyl radical; and R<SP>2</SP> is a (C 1 -C 10 ) alkyl or cycloalkyl radical, and may be prepared by reacting a compound of the formula wherein R<SP>3</SP> is a hydrogen atom or a (C 1 -C 10 ) alkyl or cycloalkyl radical, with a compound of the formula or with an alkyl or aryl mono- or di-urethane of such a diisocyanate. The novel compounds are useful as intermediates in the preparation of polyester resins.
Patent GB-1182705-A (GB)
Title: Improvements in or relating to the Vapour Phase Production of Pyridine of Alkyl Pyridines
IPC: C07D213/10
Filed: 1967-09-19
Abstract: 1,182,705. Pyridines. LUMMUS CO. 19 Sept., 1967 [21 Sept., 1966], No. 42680/67. Heading C2C. Pyridine and/or alkyl-substituted pyridines are produced by the condensation of ammonia with an aldehyde in the vapour phase in a reaction zone containing a fluidized catalyst bed, the ammonia and aldehyde vapour being simultaneously introduced into the reaction zone so that they are mixed only in the presence of the fluidized catalyst. The preferred aldehydes are formaldehyde and acetaldehyde and the preferred catalysts are dehydrating catalysts such as silica gel, alumina or silicaalumina.
Patent GB-1590973-A (GB)
Title: Production of magnesium salt of p-chlorophenoxyisobutyrie acid
IPC: C07C51/41
Filed: 1977-10-13
Abstract: The process is a simple way of preparing the magnesium salt of p-chlorophenoxyisobutyric acid in high yields from industrially available materials. p-Chlorophenoxyisobutyric acid, which has the formula <IMAGE> or a salt thereof, is dissolved in aqueous, excess ammonia solution. The solution obtained is combined with aqueous magnesium-ammonium salt solution for reaction. Dissolving magnesium oxide, magnesium hydroxide or basic magnesium carbonate in excess ammonium salt solution, preferably solutions of ammonium chloride, gives an aqueous solution of a magnesium salt, preferably magnesium chloride, containing a large excess of ammonium ions and of dissolved ammonia.