baber/WOPTO huggingface dataset:
Patent GB-1440736-A (GB)
Title: Polymers formed by ringopening polymerization
IPC: C08G61/00
Filed: 1974-09-05
Abstract: 1440736 Polymerizing norbornene compounds JAPAN SYNTHETIC RUBBER CO Ltd 5 Sept 1974 [5 Sept 1973] 38929/74 Heading C3 The invention comprises polymers and copolymers obtained by the ring-opening polymerization of 5-norbornene compounds containing carboxylic acid amide groups. The polymerization is carried out in the presence of a catalyst comprising (a) a compound of tungsten, molybdenum or rhenium and (b) a compound containing an element of Group Ia, IIa, IIb, IIIa, IVa or IVb of the Periodic Table, bonded to a carbon or hydrogen atom; the catalyst may be a reaction product of compound (a) with compound (b). In examples polymers are obtained from N,N-dimethyl-5- norbornene-2-carboxylic acid amide and copolymers are obtained from this compound together with methyl 5-norbornene-2-carboxylate, cyclooctene, 5-norbornene-2-nitrile, N-n-propyl- 5 - norbornene - 2,3 - dicarboxylic acid imide and 5-norbornene-2,3-dicarboxylic acid anhydride; compounds (a) used to form the catalysts are WCl 6 , W(OC 6 H 5 ) 6 , MoCl 5  and Re Cl 5  and compounds are Al(C 2 H 5 ) 3  Al 2 (CH 5 ) 3 Cl 3 , Zn(C 2 H 5 ) 2 , Sn(CH 3 ) 4 , SiH(C 2 H 5 ) 3  and NaH; in some instances the catalysts included benzoyl peroxide and styrene oxide as third components.
Patent GB-1513350-A (GB)
Title: Photocopying apparatus
IPC: G03G15/30
Filed: 1976-09-23
Abstract: In the electrostatic copier, a plurality of originals and covers therefore are jointly exposed in an arbitrary mutual assignment. The originals and covers are mounted in separate retaining devices which can be adjusted relative to one another. The strip-shaped copying paper is mounted on a roller and is cut through into individual sheets by a cutting device in the copier. The size of the sheets follows from the size of the total surface of the originals which is released for exposure. The cutting device is therefore actuated depending on the position of a retaining device for an original or cover.
Patent GB-1097192-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: BOERS ADOLF
IPC: F16L37/14
Filed: 1965-09-16
Abstract: 1,097,192. Pipe joints. HEPWORTHPOLVA PLASTICS Ltd. Sept. 15, 1966 [Sept. 16, 1965], No. 39518/65. Heading F2G. A pipe joint between pipe ends 1 comprises a pair of collars 2 secured one around each adjacent pipe end adjacent the end face, a pair of resilient sealing rings 5 abutting one against each of the mutually-facing collar ends and projecting radially beyond the collars, at least one circumferential groove 8 in the outside of each collar, a sleeve 6 making a sliding fit over the collars and an interference fit over the sealing rings, a pair of circumferential grooves 7 in the sleeve mating with the grooves in the collars, and flexible rods 9 which are inserted through tangential holes in the sleeve into the open annulus formed by the mating grooves to couple the pipes together. End rings 4 are provided at the pipe ends to prevent the sealing rings, which are of natural or synthetic rubber, sliding or rolling off the pipe ends during assembly. The sleeve and collar ends 13 and 12 respectively are tapered and the extreme ends of rings 4 may be bevelled for ease of assembly. The pipes, sleeve, collars and end rings are of synthetic plastics, e.g. polyvinyl chloride, the collars and rings being secured to the pipes by welding, i.e. solvent welding when of the same material or an epoxy resin. Alternatively, fixing may be achieved by mechanical grip obtained by roughening the mating surfaces, e.g. by circumferential grooving, and/or shrink-fitting. Rigid pipes, such as vitrified clay, concrete or steel piping, may also be joined. As shown, the sealing ring is elongated in section and is provided with three ribs internally and externally. Alternatively, O-ring seals may be used. The flexible rods may be of polyvinyl chloride, polyethylene, or nylon.
Patent GB-1396762-A (GB)
Title: Process for producing imines
IPC: B01J20/18
Filed: 1972-08-24
Abstract: 1396762 Preparation of imines from primary aromatic amines SNAMPROGETTI SpA 24 Aug 1972 [10 Sept 1971] 39573/72 Heading C2C The invention comprises a process for the preparation of imines in which a mixture of a ketone and a primary arylamine in which the aryl group is either unsubstituted or substituted by one or more substituents selected from halogen, OH, alkoxy or hydrocarbyl radicals, and, optionally, a solvent, is circulated through a vessel containing a fixed bed of molecular sieves capable of absorbing water but incapable of absorbing the reactants. Exemplified reactants are aniline, acetone, acetophenone and methyl ethyl ketone whilst the use of aniline/ methylisopropyl ketone, p - chloroaniline / acetone, p-methoxy aniline/acetone, p-hydroxyaniline / propiophenone and aniline / p - chloroacetophenone is mentioned.
Patent GB-1311299-A (GB)
Title: Mechanical structure for telecommunication installations
IPC: H05K7/18
Filed: 1970-08-18
Abstract: 1311299 Racks for electronic components TELETTRA LABORATORI DI TELEFONIA ELETTRONICA E RADIO SpA 18 Aug 1970 [23 Aug 1969] 39696/70 Heading H1R A rack for telecommunication installations comprises two removable housings 1, 2, the first, 1, is made of copper, aluminium or alloys thereof and accommodates power and service cables for which it acts as earth, the second, 2, accommodates coaxial cables. The connection of the power and service cables to an individual unit is facilitated by a plate bearing a connector (Fig. 8, not shown) mounted on the side wall of the unit, which is movable under the action of a screw positioned a.t the front of the unit, such that when the unit is in position, the connector on the plate is brought into contact with the connector 6 associated with the housing 1. Connection for the coaxial cables is facilitated by a bridge connector positioned on the front of the unit. Sub-units with radio-frequency shielding are retained in a unit by a tilting plate. They are inserted manually and removed with the use of a key inserted through a hole in the front plate of the sub-unit.
Patent GB-857739-A (GB)
Title: Improvements in and relating to corpse containers
Inventor: LEHNER HERBERT
IPC: A61G17/06
Filed: 1958-12-09
Abstract: 857,739. Shrouds. LEHNER, H. Dec. 9, 1958 [Dec. 12, 1957], No. 39715/58. Class 141 A corpse container consisting of an airtight bag of flexible synthetic sheet plastic material is provided with one or more openings each sealed by a sheet of water-soluble paper or water-soluble synthetic plastic material. The sealed openings are provided in the base of the container.
Patent GB-1047783-A (GB)
Title: Improvements in front suspensions for two-wheeled cycle vehicles
Inventor: MOULTON ALEXANDER ERIC
IPC: B62K21/20
Filed: 1962-10-19
Abstract: 1,047,783. Cycle front wheel suspension. MOULTON CONSULTANTS Ltd. Oct. 15, 1963 [Oct. 19, 1962], No. 39734/62. Heading B7E. A steering column 11 within a cycle head tube 12 is connected to handlebars by a bolt 60 and nut 61 and is provided at its lower end with lugs 31, a brazed sleeve 32 having lugs 33, and a nut 34, the lugs engaging for steering movement with projections 35 on a nylon bush 30 axially slidable on a splined portion 5b of an inner tube 5 rigidly fixed by members 15, 16 to a wheel crown 4 and forks 3. The wheel and tube 5 may move upwards in the column 11 against the resistance of springs 27, 28 abutting against a member 23 supported by a tube 21, and a spring 26 adapted to be deflected between 23 and a bush 24 serves as a rebound spring. The bush 24 has clearance with the tube 21 and mounts a self-lubricating bush 25 which supports the upper end of the tube 5.
Patent GB-1249375-A (GB)
Title: Aminobenzocycloalkane compounds
IPC: C07C215/64
Filed: 1969-08-08
Abstract: 1,249,375. 1 - Amino - benzocycloalkanes and derivatives thereof. PFIZER Inc. 8 Aug., 1969 [21 April, 1969], No. 39901/69. Heading C2C. Novel compounds I (including salts, hydrates and optical isomers thereof) where X is H, C 2-5  alkanoyl, F, Cl or Br, Y is H, OH, C 1-3  alkoxy or C 1-3  alkylthio (Y is only H when X is other than H), R 1  and R 2  are H, C 1-3  alkyl or together with the adjacent nitrogen comprise pyrrolidine, piperidine, homopiperidine or NC 1-3  alkyl-piperazine and n is 0 or 1, are obtained by reducing compounds II or compounds III (Z is OH, NHPh or R 1  or R 2 ; II and III are prepared according to standard methods); if desired, products I can be converted one into the other utilizing standard reactions, e.g. alkylation, halogenation, dehalogenation and/or acylation, racemic mixtures can be resolved via N-acyl derivatives of I, e.g. N-acetyl-L-tyrosinates and mandelates, and e.g. pyrrolidino compounds I can be prepared by reacting I, in which NR,R 2  is NH 2 , with 1,4- dibromobutane. 4-Methoxy-7-chloro-1-indanone is also described. Pharmaceutical preparations having psychotherapeutic properties contain I as active ingredient; administration is orally or parenterally.
Patent GB-933265-A (GB)
Title: Coloured table salt and method of making the same
IPC: A23L27/40
Filed: 1959-11-26
Abstract: Table salt in granular form is coloured by admixing it with an edible colouring material containing non-toxic amounts of tartaric acid and propylene glycol.  Preferably a colouring liquid containing, by weight, 0.1 to 0.6% colouring pigment, 0.1 to 0.3% of a 50% tartaric acid solution, 15 to 25% propylene glycol and 66 to 84.8% distilled water is agitated with the salt, which is then dried.
Patent GB-889407-A (GB)
Title: Methylated steroidal lactones
Inventor: ELLIS BERNARD
IPC: C07J19/00
Filed: 1959-11-26
Abstract: The invention comprises steroids of the formula <FORM:0889407/IV (b)/1> (wherein R is hydrogen or methyl) and their preparation by reacting a corresponding 4-unsubstituted steroid in a solvent with thiophenol, aqueous formaldehyde and triethylamine and reducing the resulting 4-phenylthiomethyl derivative with Raney nickel in acetone. Examples are given.  In the Provisional Specification the preparation of the following starting material also is described.  3 - (17b  - Hydroxy - 6a  - methyl - 3 - oxo - androst - 4 - en - 17a  - yl) propionic acid gamma - lactone is prepared by reacting 17a -ethynyl-6-methylandrost-5-ene-3b ,17b -diol with ethyl magnesium bromide and then carbon dioxide to give 3-(3b , 17b  - dihydroxy - 6 - methylandrost - 5 - en - 17a -yl)- propynoic acid, catalytically hydrogenating this and treating the product with hydrochloric acid to give 3-(3b ,17b -dihydroxy-6-methylandrost - 5 - en - 17a  - yl) - propenoic acid gamma - lactone, catalytically hydrogenating this to give the corresponding propanoic acid gamma-lactone and oxidising this by the Oppenauer method.  Specifications 862,621, 888,165 and U.S.A.  Specification 2,938,031 are referred to.
Patent GB-1086494-A (GB)
Title: New penicillins
Inventor: KONIG HANS-BODO
IPC: C07D499/12
Filed: 1964-10-02
Abstract: The invention relates to compounds of the general formula <FORM:1086494/C2/1> and their salts with non-toxic inorganic and organic bases.  In the general formula, R1 and R2, which may be the same or different, are selected from (a), (b) and (c) and R3 and R4, which may also be the same or different, are selected from (a) and (d) wherein: (a) is a hydrogen atom or an alkyl, substituted alkyl, cycloalkyl (the ring of which may be interrupted by heteroatoms), aralkyl, aryl or heterocyclic radical; (b) is a F, Cl or Br atom or a radical of the general formula -OR, -O-CO-R, -O-CS-R, -O-CO-N(R)2, -SR, -S-CO-R, -S-CS-R, -S-CO-N(R2)2, -SO-R, -S-CS-N(R)2, -SO2-R, or -SO2-N(R)2, R having the same meaning as (a); (c) is a radical of the general formula -CO-R, -C(R)=N-R, -COOR, -COSR, -CSSR, -CO-N(R)2, -CS-N(R)2, -CN, <FORM:1086494/C2/2> <FORM:1086494/C2/3> -C (Halogen)3, -N(R)-CO-R, -N(CO-R), N(R)-COOR, -N(R)-CSOR, -N(R)-CSSR, -PO(X)Y or -C(OR)3, X and Y which may be the same or different being halogen atoms or radicals of the general formula -OR, -NH-R, -N(R2) or -SR, R having the same meaning as (a) except it must not be a H atom; and (d) is a radical of general formula -CH2-Hal, -CH(Hal)2, -C(Hal)3, -C(R11)2-Hal, CH (R11)-Hal or -C(R11)(Hal)2, Hal being a F, Cl or Br atom or a radical of group (c) wherein, when one C atom has more than one halogen atom attached to it, these can be the same or different, R11 is an alkyl, aralkyl or aryl radical containing up to 10 C atoms and when two R11 are attached to one C atom, they can be joined up to form a cycloaliphatic or heterocyclic ring. The compounds are prepared by reaction of 6 amino penicillanic acid with a b -lactone in the presence of a basic material.  The reaction may be carried out in a diluent, e.g. water or aqueous organic or anhydrous organic solvents.  The 6-amino penicillanic acid may be used in the form of a salt, or the carboxyl and/or amino group is first silylated and after the reaction the silyl radical is split off.
Patent GB-892779-A (GB)
Title: Catalyst and method for the dehydrogenation of ethylbenzene
IPC: B01J23/84
Filed: 1959-11-27
Abstract: A dehydrogenation catalyst comprises at least 50 wt. per cent of iron, zinc and/or magnesium oxides, up to 10 wt. per cent of an alkali metal carbonate and/or oxide, up to 10 wt. per cent of an alkali metal chromate and/or dichromate and not more than 2,5 wt. per cent of vanadium.  Optional ingredients of the catalyst are 5-10 wt. per cent Cu2O and/or graphite, 3-5 wt. per cent of a refractory cement and 3-5 wt. per cent of methyl cellulose of high molecular weight.  The catalyst is activated with steam at 200 DEG -650 DEG C.ALSO:Styrene is produced from a mixture of steam and ethylbenzene by dehydrogenation at 550 DEG C.-675 DEG C. over a novel catalyst comprising at least 50wt. per cent of iron, zinc and/or magnesium oxides, up to 10wt. per cent. of an alkali metal carbonate and/or oxide, up to 10wt. per cent. of an alkali metal chromate and/or dichromate and not more htan 2.5wt. per cent. of vanadium.  Optional ingredients of the catalyst are 5-10wt. per cent. Cu2O and/or graphite, 3-5wt. per cent. of a refractory cement and 3-5wt. per cent. of methyl cellulose of high molecular weight. The catalyst is activated with steam at 200 DEG C-650 DEG C.
Patent GB-1510036-A (GB)
Title: Slide fasteners
IPC: A44B19/26
Filed: 1976-09-29
Abstract: 1510036 Sliding clasp fasteners H Y LEE 29 Sept 1976 40490/76 Heading E2S A sliding clasp fastener for closing two adjacent openings in a container consists of first and second stringers 1, 1' bearing separate teeth 2 which may be interlocked with teeth 4 on a third stringer 3 mounted on a partition between the openings by means of a single slider 5 for simultaneous interlocking, or by means of separate sliders 14, 14' for selective interlocking. The teeth 4 have dual heads 4' and interlock with teeth 2 in a T-formation, and slider 5 has passages 7, 7', 8 to receive the three stringers. For use with two sliders, 14, 14', teeth 4 are modified to include an upper track portion 12, and a lower support portion 13 on each side to receive the sliders which are shaped as in Fig. 8 to engage these portions.
Patent GB-1522315-A (GB)
Title: Liquid crystalline materials
IPC: C09K19/54
Filed: 1975-10-03
Abstract: 1522315 Modulating light XEROX CORP 3 Oct 1975 [7 Oct 1974 (2)] 40527/75 Heading G2F [Also in Division C4]  A nematic liquid crystalline material is homeotropically aligned by placing the nematic liquid crystalline material 30 Fig. 2, in contact with either bis (tri-n-butyltin) oxide or tri-n-butyltin chloride on a substrate 31. The molecules 33 of the liquid crystalline material then align themselves with their major axes normal to the plane of the substrate. The aligning agent, consisting of the bis (tri-nbutyltin) oxide or tri-n-butyltin chloride, may be in the form of a layer or it may be uniformly dispersed in the liquid crystalline material. The liquid crystalline material may be used in an electro-optic cell, the aligning agent extending the lifetime of the cell. In such a cell, the electrodes may be in the form of an image 21, Fig. 9, the liquid crystalline composition filling the void area 20 defined by a spacer 13 separating transparent plates. Alternatively, the spacer may have a cut-out portion 19, Fig. 8, defining the shape of the image and being filled with the liquid crystal composition. Further, the aligning agent may itself be provided as a layer in the shape of the image. In these embodiments, the electric field is applied parallel to the direction on which the major axes of the molecules are aligned, dynamic scattering of the liquid crystalline composition being used. Alternatively, the electric field may be applied in a direction orthogonal to the molecule axes. In a further embodiment, a layer of photo-conductive material such as arsenic triselenide is included between one of the electrodes of the cell and the liquid crystal composition, said photo-conductive material being irradiated with actinic radiation in imagewise configuration. The aligning agent comprises up to 10% and at least 0À1 wt. per cent of the liquid crystal composition. The liquid crystal composition may contain an optically active material, which may be either a non-mesomorphic material or a cholesteric liquid crystalline material, examples of such materials being given in the Specification.
Patent GB-998509-A (GB)
Title: A process for the preparation of 1,4-disubstituted piperazine derivatives
IPC: C07C215/12
Filed: 1961-11-13
Abstract: The invention comprises (a) a process for the preparation of piperazine derivatives of the formula <FORM:0998509/C2/1> wherein R and R1 are each an alkyl, hydroxy-alkyl, cycloalkyl or aryl group or an aralkyl group optionally bearing alkoxy substituents, and acid addition salts thereof, by reacting a diethanolamine R.N: (CH2CH2OH)2 with an amine R1NH2 and, if desired, converting the product into the acid addition salt, and (b) claimed per se, piperazines of the above general formula wherein R is a phenylisopropyl group and R1 is cyclohexyl, phenylisoprophyl, phenyl, b -phenylethyl, n-butyl or b -hydroxyethyl; R is cyclohexyl and R1 is phenyl or cyclohexyl, and R and R1 are both b -phenylethyl.  The diethanolamine reactant is preferably prepared by reacting an amine RNH2 with ethylene oxide, suitably by reaction of the amine with 2-4 moles of ethylene oxide in an organic solvent such as methanol or ethanol, or by using a salt of the amine such as the carbonate or acetate, in water.  The reaction of the ethanolamine with the amine R1.NH2 is preferably carried out at 200-300 DEG  C. in the presence of a metal halide or sulphate, e.g. aluminium, zinc or calcium chloride, as a catalyst. Pharmaceutical preparations having analgesic and antihistamine activity, useful in the lowering of blood pressure comprise the above piperazine compounds or their salts with organic or inorganic acids and a pharmaceutical carrier.  Specification 998,510 is referred to.
Patent GB-938834-A (GB)
Title: Process for oxidizing olefines to aldehydes, ketones and acids
IPC: C07C45/34
Filed: 1959-11-30
Abstract: An aqueous catalyst for use in the oxidation of olefines to carbonyl compounds comprises a palladium salt, a salt of a metal which can exhibit different valencies under the reaction conditions and a minor quantity of a compound of platinum or gold or a mixture thereof. Preferably the compound of platinum or gold is present in an amount of 0,01-5% based on the weight of palladium.  Suitable salts of metals exhibiting different valencies under the reaction conditions are those of copper, mercury, cerium, thallium, tin, lead, titanium, vanadium, antimony, chromium, molybdenum, uranium, manganese, iron, cobalt and nickel.  The preferred salts are halides, chlorates, perchlorates, nitrates or mixtures of these with sulphates or acetates.  The preferred catalysts are those which contain chloride ions and palladium or copper with iron, chromium, manganese or cerium as well as the platinum or gold compound.  In the examples the catalysts comprise (a) PdCl2, CuCl2 and AuCl3; (b) PdCl2, CuCl2 and PtCl4 and (c) PdCl2, CuCl2, Ce(SO4)2 and PtCl4.  Specifications 828,790, 922,694, 938,831, 938,832 and 938,833 also are referred to.ALSO:Aldehydes, ketones and/or carboxylic acids are obtained by the reaction of an olefine with an oxygen-containing gas in an acid to neutral medium in the presence of water and a catalyst comprising a palladium salt, a salt of a metal which can exhibit different valencies under the reaction conditions and also a minor quantity of a compound of platinum or gold.  Suitable salts of metals exhibiting different valencies are, for example, those of mercury, cerium, thallium, tin, lead, titanium, vanadium, antimony, p  chromium, molybdenum, uranium, manganese, iron, cobalt and nickel.  Suitable anions are, for example, halides, chlorate, perchlorate, nitrate, or mixtures of these with sulphate or acetate radicals.  The preferred catalysts are those which contain palladium and copper with one or more selected from iron, chromium, manganese and cerium compounds. It is preferred to use a catalyst containing chlorine ions and further chlorine may be added in the form of hydrogen chloride, acetyl chloride, ethyl chloride, tertiary butyl chloride or bismotrichloride during the course of the reaction.  The process may be used for converting, for example, ethylene into acetaldehyde and acetic acid, propylene to acetone and propionaldehyde, butylenes to methylethyl ketone, butyraldehyde and isobutyraldehyde and butadiene to diacetyl and crotonaldehyde.  Specifications 922,694, 938,831, 938,832 and 938,833 also are referred to.
Patent GB-995201-A (GB)
Title: Improvements relating to photographic elements
IPC: C08F4/28
Filed: 1962-01-23
Abstract: 995,201. Photopolymerizable materials. E. I. DU PONT DE NEMOURS & CO. Jan. 23, 1962 [Feb. 2, 1961], No. 40762/64. Divided out of 995, 199. Heading G2C. A photopolymerizable element comprises a support carrying (1) a layer of a silver salt in a water-permable binder and (2) a layer containing an ethylenically unsaturated compound with a boiling point above 80C. and an organic polymer as a binder in a ratio of 3 to 97 and 97 to 3 parts by weight; the layers being coated in either order. Alternatively the ethylenically unsaturated compound may act as the binder. A peroxy compound such as a persulphate may be present in either layer and the element may be used in the silver image transfer processes of Specification 995,199. Specification 907,948 also is referred to.