baber/WOPTO huggingface dataset:
Patent GB-1386895-A (GB)
Title: Computer-controlled telecommunications exchange systems
IPC: C07D501/36
Filed: 1972-10-20
Abstract: 1386895 Automatic exchange systems SIEMENS AG 20 Oct 1972 [27 Oct 1971] 48307/72 Heading H4K A computer-controlled telecommunication exchange system includes a special service station having a plurality of exchange appearances, the system being such that in response to answering of an incoming call at any such appearance, the calling subscriber is automatically identified and associated special service data is read out of a corresponding storage location and displayed at the special service station. As described the special service station is a fault suppression station and is terminated on a computer-controlled exchange handing service operations only, a maintenance service station and a telephone order service station also being terminated on this exchange. When an incoming call is answered the exchange applies an identification potential to one wire of the incoming line and in the originating exchange the subsubscriber is identified, this identity being transmitted to the service exchange via the line or a special data link. The data read out from storage is used to determine the action taken and may be updated by the service location in accordance with information supplied by the subscriber.
Patent GB-1325049-A (GB)
Title: Stackable compressed gas cylinders
IPC: F17C13/08
Filed: 1970-10-12
Abstract: 1325049 Storing gases under pressure PENNWALT CORP 12 Oct 1970 [27 Oct 1969] 48343/70 Heading F4P Compressed gas cylinders A are provided with annular collars 24 and skirts 28 so dimensioned that when a pair of cylinders are stacked as shown in Fig. 1, the skirt 28 fits over the collar 24, the two cylinders being locked together in this position by a plurality of rotatable latches B mounted on the skirt 28 having spring- pressed fingers 34a, Fig. 3, engageable in slots 36 in the collar 24. Each cylinder which has a valve at one or each end is preferably made of stainless steel sheet or high ductility steel, and is provided with a pair of spaced rolling hoops 18, 20. A number of pairs of stacked cylinders may be secured together by a strap engaging each pair of cylinders about the collar of the lower cylinder, Figs. 5-7 (not shown). Each collar 24 has a pair of diametrically opposite hand slots 26.
Patent GB-1461012-A (GB)
Title: Method of producing superhard articles
IPC: B22F3/15
Filed: 1974-11-08
Abstract: 1461012 Sintered superhard articles INST SVERKHTVERDYKH MATERIAL AKAD NAUK UKRAIN SSR 8 Nov 1974 48345/74 Heading C7D Sintered superhard articles are made by sintering a composite of particulate material comprising a core of a mixture of a metalloceramic matrix material and a superhard material and a sheath of compacted metalloceramic material. The preferred superhard material is diamond or borazon, and the metalloceramic material is preferably Wc-Co for the core and sheath. The sheath may be compacted from Wc-Co powder, and a core mixture of Wc-Co and diamonds in a weight ratio of 4:1 is placed in the sheath. A powder layer of Wc-Co is placed on top of the core and after compaction the composite is sintered at 1400-1460‹C parked in Al 2 O 3  powder in a graphite container.
Patent GB-1373445-A (GB)
Title: Method of assembly of heat-insulating structures
IPC: B23K15/00
Filed: 1972-10-23
Abstract: 1373445 Welding by fusion COMMISSARIAT A L'ENERGIE ATOMIQUE 23 Oct 1972 [4 Nov 1971] 48789/72 Heading B3R Spaced, substantially parallel, plates 11, 12 are joined together to form a heat-insulating compartmented structure, e.g. a protection wall for a wall of a nuclear reactor, by melting both plates by an electron beam directed from one side of the plates so as to form metal weld bridges 15 without using additional filler metal between the plates. A metal strip (4a, Fig. 1a, not shown), may be laid on the top plate before welding to fill in the beam impact cavity. In the structure shown, a plurality of spaced plates 11-13 are joined by linear bridges 15, 15<SP>1</SP> which provide compartments and are staggered to provide longer thermal conduction paths. This structure is assembled by first joining the plate 12 to the plate 11 and then joining the plate 13 to the plate 12. The compartments are evacuated by the vacuum used in the electron beam process. Spacing wires 14 prevent inward movement of the plates due to the vacuum therebetween. These wires may be arranged in a uniform trellis. The wires may be coated with a thermal insulating oxide such as zirconia. In Fig. 3 (not shown), wherein the plates are pierced by coincident bores to provide a hole for passage therethrough of ducts, a circular weld bridge surrounds said hole. In Fig. 4 (not shown), the parallel plates are in the form of nested coaxial tubes with the weld bridges disposed both longitudinally and oircumferentially thereof. The plates may also be of other shapes, such as part-spherical.
Patent GB-1495963-A (GB)
Title: Lap-supported sketching easel
IPC: A47B23/00
Filed: 1975-10-31
Abstract: 1495963 Lap easel J M DENTON 31 Oct 1975 [12 Nov 1974] 48798/74 Heading A4H [Also in Division B6] Paper-supporting board 2 is placed on the knees of a user, who is able to adjust split base portions 9 laterally of the board if the spacing of the portions 9 and their thigh grips 11 does not suit him, and is raised to a suitable angle by engagement of a selected pair of detents 8 in battens 6, 7 with swinging bracket 10. Painter's accessories may be mounted on extensions of the battens 6, 7.
Patent GB-1007993-A (GB)
Title: Fluid control valves
IPC: F16K39/02
Filed: 1962-12-31
Abstract: 1,007,993. Valves. LANDIS & GYR A.G. Dec. 31, 1962 [Feb. 2, 1962], No. 49094/62. Heading F2V. The pressures upon a valve stem are balanced by utilizing a tubular valve head guided between two spaced-apart locations with a valve seating provided at at least one guide. In a three-port valve casing 18, tubular valve head 24 is vertically reciprooable upon stem 9 to obturate the flow from passage 20, via slots 8 in the head 24, by seating upon annular seat 25, or the flow from passage 19, through holes 28 in guide bushing 23, by seating upon annular seating 26. Intermediate positions of the head 24 permit simultaneous flow and mixing from the passages 19 and 20 into 21. Resilient 0- ring 13 in the wall of bushing 23 seals between passages 20 and 19. Rotation of head 24 is prevented by pin 17 between spokes 10 attaching the head 24 to stem 9.
Patent GB-1028152-A (GB)
Title: Manufacture of nitrofuran derivatives
Inventor: LANDQUIST JUSTUS KENNETH
IPC: C07D307/73
Filed: 1962-12-31
Abstract: The invention comprises 2-dimethylamino-5-(5-nitro-2-furyl)-1,3,4-thiadiazole, 2-methylamino - 5 - [2 - (5 - nitro - 2 - furyl)vinyl]-1,3,4 - thiadiazole, 2 - methoxy - 5 - (5 - nitro-2 - furyl) - 1,3,4 - thiadiazole, 2 - methoxy - 5-[2 - (5 - nitro - 2 - furyl)vinyl] - 1,3,4 - thiadiazole and 2 - dimethylamino - 5 - [2 - (5-nitro - 2 - furyl)vinyl] - 1,3,4 - thiadiazole, and a process for the preparation of compounds of the formula: <FORM:1028152/C2/1> wherein R represents an alkoxy radical, or a radical of the formula -NR1R2 wherein R1 and R2, which may be the same or different, represent hydrogen atoms or alkyl, aryl, aralkyl or heterocyclic radicals, comprising ring closure of an N-amino imidate derivative of the formula: <FORM:1028152/C2/2> wherein R3 represents a C1- 4 alkyl radical, in the presence of an acid catalyst.  The N-amino imidate derivative starting material may be generated in situ by reaction of a thiocarbonyl derivative of the formula H2N.NH.CS.R with an acid-addition salt, e.g. the hydrochloride, of an imidate of the formula: <FORM:1028152/C2/3> In many instances of this generation in situ, sufficient acid is liberated by hydrolysis or decomposition of the imidate salt, or of the ammonium salt produced from it during the reaction, to catalyse the ring closure of the N-amino imidate derivative so formed.  In such cases no additional acid catalyst is required and the desired 1,3,4-thiadiazole may be isolated directly from the reaction mixture. Ethyl 5 - nitro - 2 - furimidate hydrochloride is prepared by saturating a cooled mixture of 5-nitro-2-furonitrile, ethanol and chloroform with dry hydrogen chloride.  Ethyl 2-(5-nitro-2-furyl)acrylylimidate hydrochloride is similarly prepared using 2-(5-nitro-2-furyl) acrylonitrile in place of 5-nitro-2-furonitrile.  Reference has been directed by the Comptroller to Specification 966,832.
Patent GB-1377223-A (GB)
Title: Production of amylases by cultivation of streptomyces and uses of these amylases
IPC: C12P19/14
Filed: 1971-10-22
Abstract: 1377223 Enzymatic preparation of maltose; maltitol MEIJI SEIKA KAISHA Ltd 22 Oct 1971 [27 Oct 1970 25 Dec 1970 5 July 1971] 49156/71 Headings C2C and C2S [Also in Division C3] Maltose is prepared by the action of an amylase, prepared by the cultivation of a strain Streptomyces albus (ATCC 21725), Streptomyces aureofaciens (F.R.I. 606), Streptomyces hygroscopicus (ATCC 21722), Streptomyces hygroscopicus var. angustomyceticus (F.R.I. 607), Streptomyces viridochromogenes (ATCC 21724), Streptomyces flavus (F.R.I. 605) and Streptomyces tosaensis (ATCC 21723) is a culture medium containing known carbon sources and nitrogen sources, on a starch substrate. The saccharification reaction typically takes place at a pH of 6 and at a temperature of 55‹ C. Maltitol is prepared by saccharifying a starch material, an at least partially hydrolysed starch material or an amylose by reaction with the amylase above described and then catalytically hydrogenating the starch hydrolysate solution formed in the presence of a nickel catalyst.
Patent GB-1529734-A (GB)
Title: Bookbinding
IPC: B42C5/02
Filed: 1975-12-01
Abstract: 1529734 Bookbinding J E THOMPSON 1 Dec 1975 49310/75 Heading B6A A stack 14 is moved along a guide 15 to a rounding trough 18 by pushers 16 and is then clamped by grippers 6 and passed with its spine in contact with rollers, the axes of which extend parallel to the direction of stack travel and which brush the spine outwardly from its centre to form shoulders. The rollers are mounted on carriages, e.g. 20, reciprocable along rods 21, and are rotated and moved arcuately to form the shoulders. They may also apply glue. Applying back linings; Casing in; Jacketing. After rounding, backing and glueing, a hot-melt adhesive layer is applied to the spine by a grooved roller. A scraper controls the length of applied adhesive. Further heated scrapers remove surplus adhesive and a strip of lining cloth is then applied followed by a cover and jacket.
Patent GB-1422389-A (GB)
Title: Process for treatment of waste gases
IPC: C01B31/08
Filed: 1973-10-24
Abstract: 1422389 Activating absorbents TAKEDA YAKUHIN KOGYO KK 24 Oct 1973 [24 Oct 1972] 49424/73 Heading B1L [Also in Division C1] Activated carbon which is used for the extraction of sulphur oxides and/or nitrogen oxides from waste gases is treated and regenerated by contacting with gaseous ammonia at 200‹ to 1300‹C. The process of absorption of the oxides is carried out up to temperatures of 200‹C.
Patent GB-1300128-A (GB)
Title: Derivatives of cephalosporin
IPC: C07D513/04
Filed: 1970-10-19
Abstract: 1300128 Cephalosporin-γ-lactams ROUSSELUCLAF 19 Oct 1970 [17 Oct 1969] 49516/70 Addition to 1155493 Heading C2A Novel 7 - acylamino - 3 - aminomethyl - cephalosporanic acid-γ-lactams having the Formula I<SP>1</SP> and salts thereof, wherein X is -NO 2  or -NH 2  and may be at position 4, 5, 6 or 7 of the indole nucleus, are prepared by acylating the 7-amino group of 7 - amino - 3 - aminomethyl - cephalosporanic acid-γ-lactam with a (nitro-indol-3<SP>1</SP>-yl)- acetic acid or an N-acylating derivative thereof and optionally subjecting the product to catalytic hydrogenation to convert the -NO 2  group to -NH 2 . The preferred acylating agent is the acid anhydride formed in situ from the acid and a condensing agent (e.g. dicyclohexyl carbodiimide). The hydrogenation is performed in the presence of palladinized charcoal. In an alternative process, the compounds (I<SP>1</SP>) may be prepared by lactamization of an appropriate 7 - acylamino - 3 - aminomethyl cephalosporanic acid or its ester. Pharmaceutical compositions having antibiotic activity against gram-positive and -negative bacteria, comprise a cephalosporin-γ- lactam of Formula I<SP>1</SP> above, or a therapeutically acceptable salt thereof together with a pharmaceutical carrier. The compositions may be in the form of tablets, capsules, pills, powders, oral or injectable liquid forms, topically applicable forms or suppositories.
Patent GB-1123616-A (GB)
Title: Improvements in or relating to diaphragm pumps
Inventor: BRIAN WILLIAM JOHN
IPC: F04B9/14
Filed: 1964-12-08
Abstract: 1,123,616. Diaphragm pumps. MUNSTER SIMMS ENG. Ltd. Dec. 2, 1965 [Dec. 8, 1964], No. 49873/64. Heading F1A. In a hand actuated diaphragm pump the diaphragm is secured to a rim 14 of the casing 10 and in its inner position the diaphragm enters the casing.
Patent GB-1186699-A (GB)
Title: Photographic Light-Sensitive Elements
IPC: C08F2/20
Filed: 1967-11-03
Abstract: 1,186,699. Emulsion polymerization of acrylates and methacrylates. FUJI SHASHIN FILM K.K. 3 Nov., 1967 [4 Nov., 1966], No. 50205/67. Heading C3P. [Also in Division G2] An aqueous dispersion comprises (a) a polymer of a C 1-8  alkyl acrylate or methacrylate, and (b) a surfactant of formula wherein R is a hydrogen atom or a C 1-18  alkyl group, R<SP>1</SP> is a C 1-18  alkyl group, M is an alkali metal or ammonium group, m is 0 to 20, and n is 3 or 4. The polymer dispersion is obtained by conventional polymerization in the presence of the surfactant. The average diameter of the particles in the dispersion is suitably 0À01 to 1 micron. The examples describe the polymerization of butyl methacrylate, methyl acrylate and of ethyl acrylate in the presence of potassium persulphate and the following surfactants: sodium 13-(p-nonylphenoxy)-5,8,11- trioxa-tridecane - 1 - sulphonate, sodium 28 - (pnonylphenoxy) - 5,8,11,14,17,20,23,26, octoxaoctacosane - 1 - sulphonate, and sodium - 31- (p - nonylphenoxy) - 5,8,11,14,17,20,23,26,29- nonoxahentriacontane-1-sulphonate.
Patent GB-1441008-A (GB)
Title: Electric or electronic component having a glass metal seal  and a method for its production
IPC: H01J5/32
Filed: 1973-10-30
Abstract: 1441008 Seated containers for resonators CARL - ZEISS - STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN 30 Oct 1973 [3 Nov 1972] 50437/73 Heading H1E An electrical component, e.g. an oscillator crystal, is hermetically sealed in a housing comprising metal member 1 having a peripheral flange constituted by metal member 4 brazed to member 1 and metal cap 5 sealed to the flange by cold welding, leads 2, 3 passing through member 4 being insulated therefrom by glass bushings. The co-efficients of thermal expansion of members 1, 4 and the glass may be substantially matched, or selected to provide a reinforced compression seal. Member 4 may be joined to member 1 simultaneously with or after the formation of the glass-metal seal. Member 4 and cap 5 may be copper. The component may alternatively be a miniature relay.
Patent GB-1384158-A (GB)
Title: Textile drafting apparatus
IPC: D01H5/18
Filed: 1972-11-02
Abstract: 1384158 Drafting rollers; guides; heating yarns EI DU PONT DE NEMOURS & CO 2 Nov 1972 [4 Nov 1971] 50657/72 Headings D1D and D1F A drafting apparatus comprises three sets of rolls 40, 42 80, 82 and 110, 112 with double aprons 60, 100 between the sets rolls, the cot rolls of the sets being mounted in pairs with adjacent cot rolls on a forked arm and pressed by a regulatable force against the associated drafting roll 40, 80 or 110, an elongated guide 70 riding freely on the nip of the middle drafting rolls 80, 82 the guide 70 being contoured to fit the areas of the rolls adjacent the nip, and a chute guide 90 positioned between the middle drafting rolls 80, 82 and the adjacent double aprons 100. The rolls can be pressed together by a pneumatic cylinder connected to a source of variable pressure source. The double aprons are constructed as a unit separable from the machine frame. The unit is held in place by cams operated by levers (603, 610 Figs. 5 and 6 not shown). The apron rolls are urged together by springs (616) and adjustable stops (619). The drafting device may be associated with a steam jet yarn twisting and consolidating device (Fig. 9 not shown) and a drumdriven winding machine, the steam jet exhausts into chamber 130 comprising a "coanda" surface (132) and exhaust plenum (302).
Patent GB-1064110-A (GB)
Title: Method for producing 1,1,2-trichloroethane
IPC: C07C17/158
Filed: 1964-12-14
Abstract: 1,1,2-Trichloroethane is made by reacting hydrogen chloride, vinyl chloride and molecular oxygen in the presence of a catalyst comprising copper and/or iron and/or chromium and/or at least one chloride of these metals, but devoid of activated alumina, at a temperature of 80-450 DEG  C.  It is preferred to use the reactants in the volume ratio hydrogen chloride : vinyl chloride : O2 of 2-5 : 1 : 0.5-1.5.  The catalyst may be supported on a carrier, other than activated alumina, e.g. silica, magnesia, carbon or silicon carbide. The catalyst may contain a promoter, e.g. nickel, thorium, uranium, sodium, potassium, magnesium, zinc, cadmium, mercury, strontium, cerium or erbium chlorides.  In the examples, FeCl3, CuCl2, CrCl3 and metallic copper are used as catalysts. Cis- and trans-dichloroethylene are obtained as by-products.
Patent GB-1243830-A (GB)
Title: Method and apparatus for anodizing thin-films
IPC: C25D17/00
Filed: 1968-10-29
Abstract: 1,243,830. Electrolytically oxidizing resistors. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. 29 Oct., 1968 [10 Nov., 1967], No. 51168/68. Heading H1S. [Also in Division C7] A thin metallic film 1 e.g. a resistor has its resistance adjusted to a desired value by oxidation using a pad 3 filled with electrolyte which is brought into contact intermittently with film 1 when (alternating) current is passed through the film, the film surface being dried and the resistance value between fixed contacts on the film being measured during the intervals when the film and pad are apart. The pad 3 may be moved away from film 1 (or the film may be moved) during alternate half cycles by electromagnet 5, the anodizing current passing during the other half cycles. The electrolyte may be 0À1% aqueous orthophosphoric acid solution replenished by injection every 3 minutes under the control of an electromagnetic valve. The pad 3 may be of felt, plastic foam, chamois skin &c. Drying may be by hot air or the separating movement of the film from the pad may be arranged to remove electrolyte from the film surface. The final value of the resistor may be controlled by comparing the measured value with the required value stored in a memory to derive an error signal which controls or cuts off the anodizing current. A large number of resistors may be dealt with together, the values of these resistors being checked successively using a multi-switching device. The anodizing current may have a frequency of from 15 to 100 c/s.
Patent GB-994618-A (GB)
Title: Resinous compositions
IPC: C09J161/06
Filed: 1963-12-31
Abstract: A reactive composition comprises 65 to 99 parts by weight of a polyamide having the recurring group <FORM:0994618/C3/1> where R1 is an alkylene radical having 2 to 16 carbon atoms and R2 is hydrogen, an alkyl radical having 1 to 5 carbon atoms or a halogen, said polyamide having a molecular weight of 1000 to 35,000, and correspondingly 35 to 1 parts by weight of a novolac having a viscosity of 50-200,000 centipoises at 25 DEG  C., not more than about 50% by weight of the phenolic constituent of said novolac being substituted with an alkyl group containing more than 3 carbon atoms. Specified polyamides are poly(hexamethylene isophthalamide), poly(hexamethylene 5 - t. - butylisophthalamide), poly(hexamethylene 5 - chloro - isophthalamide), poly(decamethylene isophthalamide) and poly(1:2-propylene isophthalamide).  Specified novolacs are those made by reacting formaldehyde with phenol, m-cresol, resorcinol and/or naphthol. The compositions may be used as adhesives in the preparation of laminates.
Patent GB-1410362-A (GB)
Title: Manufacture of ceramic articles having cavities therein
IPC: C03C10/00
Filed: 1972-11-09
Abstract: 1410362 Isostatic moulding DEFENCE SECRETARY OF STATE FOR 17 Oct 1973 [9 Nov 1972] 51633/72 Heading C1M A method of manufacturing a glass ceramic article having a cavity, e.g. a heat exchanger comprises pressing a mixture of powdered glass ceramic material and organic polymer in an isostatic press provided with at least one cavity forming member, heating each of the latter sufficiently to soften the polymer adjacent the surface of each member to allow each member to be withdrawn and firing the pressed mixture to form the article. The glass-ceramic material may be MgO-Al 2 O 3 -SiO 2 -TiO 2  and the organic polymer may be polybutyl or polymethyl methacrylate. The cavity-forming members may be heated by induction or by passing electricity therethrough. The members may be brass rods mounted on a brass plate. The firing may anneal, sinter or devitrify the article. A firing cycle up to 920‹ C. is described.
Patent GB-1483911-A (GB)
Title: Hydraulic actuating system suitable for actuating a high voltage circuit breaker
IPC: H01H33/34
Filed: 1974-11-28
Abstract: 1483911 Fluid actuation of switches SIEMENS AG 28 Nov 1974 [18 March 1974] 51672/74 Heading H1N A circuit breaker hydraulic actuating system comprises a drive cylinder 4 containing a differential piston 5 which actuates a moving contact 1 of the circuit breaker, the small area side 7 of the piston being continuously subjected to pressure medium from a reservoir 9, and an hydraulic reversing valve 10 channelling the pressure medium to or from the large area side 16 of the piston to move it into one or other of two predetermined positions, there being a control valve 18 which controls this reversing valve. The control valve 18 comprises a ball 22 biased by a spring 21 to close a valve opening 22a, an actuating rod 23, and a push rod 27 latchable by rollers 36 and carrying a valve disc 24 co-operable with a movably guided valve seat 26 biased by a spring 25. The control valve has two high pressure inlets 19 and 33, a low pressure outlet 20, and an outlet 17 to the reversing valve 10, connection through the control valve between the high pressure system and the reversing valve being cut off when the circuit breaker contacts are open.
Patent GB-1480405-A (GB)
Title: Activators for inorganic per-compounds
IPC: C09K3/00
Filed: 1974-12-02
Abstract: 1480405 Activated bleach HOECHST AG 2 Dec 1974 [4 Dec 1973] 52096/74 Heading DIP [Also in Division C5] An N, N'-acylated oxamide of formula wherein R 1  and R 2  are optionally halo- or nitro-substituted carboxylic acyl groups (2-9 C) activates an inorganic percompound in an oxidizing, bleaching or washing composition. The composition may be used for bleaching and washing natural and synthetic fibres and textiles, for bleaching animal skins, furs and hair as well as human hair, in the oxidation and passivation of light metal surfaces, in disinfection and sterilization, and in the bleaching of waxes, fats, oils and hydrocarbons. The preferred activators are diacetyloxamide, dipropionyl oxamide and di-n-butyryl oxamide. In examples (1) the preferred activators are formulated as a spray-dried detergent composition comprising sodium perborate, sodiumdodecylbenzene sulphonate, sodium salt of tallow fatty acid, tallow fatty ethanolamide- 10EO, sodium tripolyphosphate, sodium EDTA, CMC, optical brightener, sodium metasilicate, magnesium silicate and sodium sulphate, and (2) chacetyl oxamide is formulated as a scouring powder containing sodium α-olefin sulphonate (12-20 C), nonylphenol- 10EO, sodium tripolyphosphate, sodium perborate and quartz powder. Cotton, linen, polyamide, polyester and polyacrylonitrile fibres may be treated. The compositions are stable to storage, with or without encapsulation of the activator.