baber/WOPTO huggingface dataset:
Patent GB-1208742-A (GB)
Title: Flexible-chamber pump
Inventor: EVANS STANLEY FREDERICK
IPC: F04B9/14
Filed: 1967-11-24
Abstract: 1,208,742. Reciprocating pumps. FLUID TRANSFER Ltd. Nov.14, 1968 [Nov.24, 1967], No.53543/67. Heading F1A. In a flexible chamber pump comprising pumping chambers 43 and auxiliary chambers 44 separated by an annular compression plate 31 and inner 34 and 32 and outer 37 and 38 concentric elastomeric rings, defining the pumping chamber, an operating fluid supplied to the chambers 44 acts on plates 31 to compress the rings. The pumping chambers are situated in a housing comprising sections 12 formed of concentric tubes 24 and 26 between end walls 10 and 11, the inner rings 34 and 32 being held by a flange 27 a tube 26, a retaining ring 41, and a ring 33 on the plate 31, and the outer rings 37, 38 by a flange 25 on tube 24, ring 41, and plate 31; the sections are separated by annular cover plates 28. The auxiliary chambers are formed in the gap between the compression plate and cover plate, and between the rings and tubes, and are attached via a bore 45 to a pipe 46 connected via a control valve 47 to a fluid source 48, and exhaust 49. The valve 47 is operated by a switch 50 actuated by contacts 51 and 52 on a slidable rod 53 attached to a compression plate, actuation of the switch by contact 51 causes fluid to enter the chambers 44 and depress the plate 31 and rings. At the end of the delivery stroke contact 52 causes the auxiliary chambers to exhaust and the rings and plate return. Inlet and exhaust valves are provided in bores in the end wall 10, and a disc 20 respectively.
Patent GB-1336003-A (GB)
Title: Process for solvent extraction of metals
IPC: C22B3/38
Filed: 1970-11-11
Abstract: 1336003 Solvent extraction of metal ions PYRITES CO Inc 11 Nov 1970 [12 Nov 1969] 53622/70 Heading C1A A process for the extraction of some base metal ions from an aqueous acidic solution of a mixture of metal salts to leave a raffinate containing the remaining base metal ions comprises (a) contacting said solution with a liquid organic ion extractant which is immiscible with or dissolved in a liquid to form a solution which is immiscible with the aqueous solution and is capable of removing hydrogen ions from the aqueous solution, (b) extracting hydrogen ions from the aqueous solution with the liquid extractant to raise the pH of the aqueous solution to a value at which base metal ions are extracted from it by the ion extractant and (c) further extracting hydrogen ions from the aqueous solution to raise the pH of the latter to a second value at which further base metal ions are extracted from the aqueous solution by the ion extractant, said further extraction being effected at least once until the raffinate containing the remaining base metal ions remains. The aqueous solution may be an acidic solution of metal sulphates obtained by leaching a metal ore which has been subjected to roasting or of metal chlorides or nitrates, and the metal ions in the solution may be selected from ions of Fe, Co, Ni, Zn, Mn, Mg, Ca or Cu. The ion extractant may contain an additive (e.g. an alcohol) to inhibit formation of emulsions and assist in phase separation. The ion extractant may be a salt form (e.g. Na<SP>+</SP>, K<SP>+</SP>, Mg<SP>2+</SP> or NH 4 <SP>+</SP>) of a carboxylic acid, of an oxime or of an organo phosphorus compound of which many are listed, a cation form of di-2 ethyl hexyl phosphoric acid being preferred. The organic ion extractant containing base metal ions, may, after separation from the aqueous solution, be contacted with a suitable ligand to chelate the metal ions and remove them from the extractant. The ligand, preferably a sugar, may be used as an alkaline aqueous solution.
Patent GB-1139958-A (GB)
Title: Jet nozzle assembly for a gas turbine engine
Inventor: COLVILLE FRANCIS JEFFREY
IPC: B64C9/38
Filed: 1966-11-30
Abstract: 1,139,958. Controlling aircraft. ROLLS-ROYCE. Ltd. 30 Nov., 1966, No. 53702/66. Heading B7G. [Also in Division F1] The efflux gases from a jet propulsion plant are fed via an annulus (18), Fig. 2 (not shown), into a number of ducts 16, each carrying a nozzle 25, 25A to 25H, rotatable in unison about an axis 30 to deflex the jet efflux. Each nozzle 25, 25A to 25H may be part-spherical at its upstream end, and be mounted on a shaft 32, 32A to 32H, rotatable in bearings 31 in a duct 16, there being a small gap 26 between the duct and the nozzle to allow a flow of efflux gas therethrough, the shaft may carry an aerofoil 45 to reduce drag. The nozzles 25, 25A to 25H may be rotated by a pilot-controlled hydraulic or pneumatic ram 38, Fig. 4, operating a linkage system 33, 34, 35, 36. The annulus (18), Fig. 2 (not shown) may be cooled at the junctions with the ducts 16 by compressor air fed through ducts (20, 21) and apertures (22) by which the cooling air enters the annulus.
Patent GB-1287797-A (GB)
Title: Improvements relating to carriers for supporting substrates
Inventor: SPIRO ANDREA
IPC: C23C16/44
Filed: 1969-11-05
Abstract: 1287797 Minature furnace carriers INTERNATIONAL BUSINESS MACHINES CORP 5 Nov 1969 [8 Nov 1968] 54162/69 Heading F4B [Also in Division H1] A carrier of suscepter material, e.g. graphite, supporting a substrate 25 during heat treatment in a reaction chamber 10 comprises a boat 20 formed with circular pockets 30 each having a peripheral shoulder 34 supporting said substrate and spaced from the floor 36 by a distance “T where T is the thickness of a semi-conductor wafer before treatment, Additional support for the wafer may be provided by a central core (38, Fig. 6). The reaction chamber comprises a quartz tube 12 surrounded by a high frequency heating coil 14 and having a conduit 18 introducing reactants fron gaseous sources 20a, 20b, and 20c. Heat is induced in both the boat and the substrate and radiation and conduction from the former equalizes the heating effect on the substrate.
Patent GB-1353107-A (GB)
Title: Machine tool including means for controlling a plurality of mo ving parts
IPC: B23Q5/46
Filed: 1971-11-23
Abstract: 1353107 Controlling movable parts of a lathe MANUTAR SA 23 Nov 1971 [3 Dec 1970] 54454/71 Headings B3B and B3T In a machine tool such as a lathe having at least one displaceable slide, the stroke and traversing speed of the slide is controlled by cam means which effects actuation of intermediate means to effect movement of the slide(s), the apparatus for controlling the slide(s) movement comprising a shuttle member 9 on which are mounted adjustable cam elements 8 each of the elements having an inclined surface which is co-operable with a finger 13, which in turn operates a control valve to effect movement of the respective machine slide, the inclination of the inclined surface and the height of the element on the shuttle determining the speed of travel and length of stroke of the slide respectively. The displacement of the shuttle 9 along the lathe bed is effected by a rotary screw 10 the shuttle being guided and supported on rails 12 and 11 respectively, driving connection between the shuttle and the screw being by way of a half nut 20. The return movement of the shuttle is effected by a counterweight 17 when the half nut is disengaged from the screw 10. The disengagement is effected by actuation of the rod mechanism 26, 27, 28 which by links 25 laterally displaces the supporting rail 11 to lower the shuttle on to the guide rail 12 which releases the half nut from the screw 10. The shuttle may also carry stop member 15 in a separate array which by co-operation with switches 16 effects operation of other auxiliary parts of the lathe.
Patent GB-1393915-A (GB)
Title: Oxidation catalysts and a process for preparing unsaturated carboxylic acids using them
IPC: C07C57/055
Filed: 1972-11-30
Abstract: 1393915 Oxidizing aldehydes NIPPON ZEON CO Ltd 30 Nov 1972 [30 Nov 1971 (2) 16 Dec 1971 27 Dec 1971] 55375/72 Heading C2C [Also in Division B1] Acrylic and methacrylic acids are made by the oxidation of acrolein and methacrolein respectively with a mixture of oxygen, nitrogen and steam, at 340-376‹ C. and in the presence of a mixed oxide catalyst of the formula MO a P b Q c R d O e  wherein Q is Tl, Rb, Cs and/or K, R is Cr, Si, Al, Ge and/or Ti, a : b : c : d :: 1 : 0À01-1 : 0À01-: 0À01-2 and e is as required by the valence requirements of the other elements.
Patent GB-1456247-A (GB)
Title: Locking seals locking seals
IPC: G09F3/03
Filed: 1973-12-05
Abstract: 1456247 Security seals E J BROOKS CO 5 Dec 1973 [7 Dec 1972] 56335/73 Heading B6P [Also in Division D1] A locking seal comprises a cable 12 to at least one end of which is fastened one of a pair of fastener portions, the fastener portions comprising a male member and a female member each having a peripheral recess 36, 26 and one of the fastener portions carrying a split resilient locking ring 28, which on insertion of the male member into the female member is held between the peripheral recesses and prevents disengagement of the fastener portions. The fastener portions may each be attached to a free end of the cable, or alternatively (Fig. 13, not shown) the male member only may be fastened to the cable, such that the cable can be passed through aligned apertures, the female member being fitted to the male member to prevent withdrawal of the cable.
Patent GB-1198632-A (GB)
Title: Sensitising Dyes
Inventor: FICKEN GEOFFREY ERNEST
IPC: C07D235/20
Filed: 1966-11-28
Abstract: 1,198,632. Cyanine dyes. ILFORD Ltd. 24 Nov., 1967 [28 Nov., 1966; 19 Dec., 1966], Nos. 53172/66 and 56607/66. Heading C4P. [Also in Division G2] The invention comprises trimethene cyanine dyes of the formula wherein either R 1  or R 2  is alkyl, and R 3  and the other of R 1  and R 2  is alkyl, aryl, sulphoalkyl, hydroxyalkyl, alkoxyalkyl, carboxyalkyl, aralkyl, carboxybenzyl, or -(CH 2 ) n SO 2 NHCOR 20  or -(CH 2 ) n SO 2 NHR 21  (where n is 1-6, R 20  is alkyl and R 21  is alkyl or aralkyl); Q is phenyl which may be substituted with halogen, alkyl or alkoxy; and D completes a benzimidazole, benzoxazole, benzothiazole, benzoselenazole or 3H-indole ring, the benzo-rings of all of which may be substituted; and X is an anion. The dyes may be prepared by the usual condensation reactions. The symmetrical dyes may be prepared by reacting the 2-methyl-benzimidazole with chloral alcoholate in a basic medium.
Patent GB-1105410-A (GB)
Title: Photographic objective
IPC: G02B13/00
Filed: 1966-12-21
Abstract: 1,105,410. Photographic objectives. EASTMAN KODAK CO. Dec. 21, 1966 [Dec. 27, 1965], No. 57179/66. Heading G2J. An objective of focal length F, length L and semi-angular field of 34‹, consists of two positive elements 1, 3, separated by an air spaced from a negative element 2 wherein:- f being the reciprocal of the power of the respective surface. Optical data are provided for two examples.
Patent GB-1457877-A (GB)
Title: Device for use in advertising
IPC: C21C7/076
Filed: 1973-12-12
Abstract: 1457877 Display devices C J JOHNSTON 12 Dec 1973 57694/73 Heading G5C [Also in Division F4] A display device consists of removable translucent panels 11 bearing advertising matter and carried by a frame rotatable about a fixed central housing 23, 26 by means of a motor 19 contained in the housing. The frame is carried on the motor drive shaft which passes through a sleeve 22 fixed to the housing 23 which in turn is secured to a support such as a ceiling. Two arms 27 carrying lamp sockets 28 are fixed on sleeve 22 so that each panel 11 is illuminated as the frame rotates about the lamps.
Patent GB-1255475-A (GB)
Title: An improved structural block for use as a tunnel liner
Inventor: SHAW RODNEY DEREK
IPC: E21D11/08
Filed: 1967-12-20
Abstract: 1,255,475. Tunnels &c. building blocks. R. D. SHAW. 25 Feb., 1969 [20 Dec., 1967], No. 57856/67. Headings E1B and E1F. Arcuate blocks 10, Fig. 1, of hexagonal projection are arranged in honeycomb fashion to form a self-supporting cylindrical tunnel lining. In a lining in which the blocks are arranged in a helix their sides 13, 14 may be inclined at an angle e.g. 2‹ to a circumferential line 19 lying in a plane normal to the axis of curvature of the block. Blocks constructed to have a different angle with the line, say 1‹50', may be used to correct any tendency of the lining to move angularly during construction. Side faces 15, 16, 17, 18 may be grooved and tongued or convex and concave in cross-section. The blocks may be hollow or trough shaped, and may be made of concrete, cast iron, or steel.
Patent GB-1441178-A (GB)
Title: Laminated film structure
IPC: B32B27/00
Filed: 1973-12-14
Abstract: 1441178 Laminates E I DU PONT DE NEMOURS & CO 14 Dec 1973 [15 Dec 1972] 58024/73 Heading B5N [Also in Division B2] A laminated film structure suitable for use in packaging comprises (A) a base layer of a biaxially stretched thermoplastic film of a cellular polymeric matrix prepared from a polymer having a crystallinity of at least 60% by weight at room temperature and selected from homopolymers, copolymers and blends thereof of α-olefins having 2-10 carbon atoms, and having dispersed therein an inert filler having an average particle size of 0À3-8 microns in an amount of 26-50% by weight based on the weight of the polymer and inert filler, the filled polymer having (a) an elongation of at least 1000% at a temperature within the range of above the line drawing temperature and below the melting temperature of the polymer, (b) 30-70% voids, (c) an elongation at break at 22 C. of at least 8% in each direction of stretch, (d) 2-40 surface ruptures per square millimetre, (e) a density of 0À3-0À7 g./cc. and (f) an oxygen permeability of 090-10,000,000 cc./100 sq. in./  24 hrs./atmosphere/mil., and (B) a grease-proof layer, laminated to at least one side of the thermoplastic film base layer, the grease-proof layer being selected from (1) high density polyethylene of density 0À94-0À98 g./cc. at 25 C., (2) polypropylene having a crystallinity of at least 60% by weight and (3) ethylene-based ionomeric resin prepared by copolymerizing a mixture of ethylene and unsaturated monocarboxylic acid in the presence of a free radical polymerization initiator and bringing the copolymer into contact with an ionizable compound to effect crosslinking. The film laminate may also include at least one heatsealable layer suitably applied by coating and comprising, by weight (1) 60-70 parts ethylenevinyl acetate copolymer, 20-25 parts of a wax having a melting point of at least 60 C., 5-15 parts sodium-amminoum roteinates, 0À5- 5 parts ammonium proteinate, 1-10 parts polymerized rosin ester and 0À5-5 parts metal stearate, (2) 25-99% petroleum wax and 75-1% of a terpolymer of ethylene, a monomeric acid and a vinyl ester, alkyl acrylate or alkyl methacrylate, (3) an ethylene-based ionomeric resin or (4) a low density polyethylene of density 0À91-0À93 g./cc. at 25 C. The film laminate may also be coated on one or both sides with a layer of vinylidene chloride copolymer or layer of crystalline polypropylene containing a pigment. Grease-proof layer (B) may be uniaxially or biaxially oriented. The filler in base layer (A) may be inorganic, e.g. silica, calcium carbonate, diatomceous earth, titanium dioxide or clay or organic, e.g. polyesters or polyamides. Layers (A) and (B) may be bonded together with the use of an adhesive, electrical discharge or flame treatment or after extrusion.
Patent GB-1367171-A (GB)
Title: Process for the preparation of 2-isopropoxy cyclohxanone
IPC: C07C45/71
Filed: 1971-12-17
Abstract: 1367171 2-Isopropoxy-cyclohexanone BAYER AG 17 Dec 1971 [23 Dec 1970] 58678/71 Heading C2C In a process for producing 2-isopropoxycyclohexanone 2-chloro-cyclohexanone is reacted with at least the stoichiometric quantity of isopropanol at a temperature in the range of from 40‹ C. to 120‹ C. in the presence of at least the stoichiometric quantity of an inorganic base which is an oxide of an alkaline-earth metal or a carbonate or bicarbonate of an alkali metal or a mixture of the aforementioned compounds. Any 2-hydroxycyclohexanone formed during the reaction is etherified without isolation.
Patent GB-1242850-A (GB)
Title: Printing cylinder
Inventor: CARPENTER ALBERT STANLEY
IPC: B41C1/18
Filed: 1967-12-27
Abstract: 1,242,850. Moulding hollow cylinders. COURTAULDS Ltd. 24 Dec., 1968 [27 Dec., 1967], No. 58683/67. Heading B5A. [Also in Division B6] A process for making a printing cylinder having a hardened outer surface comprises introducing into a rigid hollow cylinder of circular cross-section, and having a relief pattern on its internal surface, a liquid capable of polymerizing to form a solid and finely divided aluminium oxide powder dispersed in the liquid, rotating the cylinder about its axis at a speed sufficient to cause the liquid to form a continuous layer around the internal surface of the cylinder and to cause the powder to concentrate in the radially outer part of that layer, and effecting polymerization of the liquid while the rotation of the cylinder is continued.
Patent GB-1285119-A (GB)
Title: Process for the manufacture of methallyl acetate
Inventor: SENNEWALD KURT
IPC: B01J23/52
Filed: 1970-12-10
Abstract: 1285119 Methallyl acetate KNAPSACK AG 10 Dec 1970 [22 Dec 1969] 58723/70 Addition to 1235632 Heading C2C Methallyl acetate is prepared by reacting isobutene and acetic acid with molecular oxygen in the gas phase at a temperature of from 100‹ to 250‹ C. under a pressure of from 1 to 21 atmospheres absolute in the presence of a catalyst comprising metallic palladium supported on a carrier, at least 80% of the carrier consisting of particles of between 0À1 and 1À5 mm. The reaction may be carried out in the presence of an inert gas, the catalyst optionally containing one or more activators. The catalyst, which may be in the form of a fluidized bed, is preferably supported on spheroidal silicic acid.
Patent GB-1398010-A (GB)
Title: Nickel-chromium-iron-alloy
IPC: C22C38/44
Filed: 1972-12-20
Abstract: 1398010 Fe-Ni-Cr alloys SANDVIK AB 20 Dec 1972 [21 Dec 1971] 58788/72 Heading C7A An alloy composition possessing a high creep rupture strength at temperatures around 900- 1000C making it suitable for use in furnaces and in hydrocarbon processing apparatus, comprises, by weight:-  0.05 to 0.4% carbon 20 to 35% nickel 15 to 25% chromium 2 to 4% tungsten 0.2 to 1.6% titanium  0.2 to 1.0% aluminium up to 0.02% boron up to 1% silicon up to 3% manganese the balance being iron and impurities including a maximum of 0.1% niobium, 0.1% cobalt and 0.015% each of sulphur and phosphorus; the titanium and carbon are present in approximately stoichiometric proportions. The alloys may be formed into tubes, bars, plates &c. and solution heat-treated at 1150-1250C.
Patent GB-1284591-A (GB)
Title: Improvements in and relating to presses
IPC: B30B1/38
Filed: 1969-12-03
Abstract: 1284591 Pneumatic presses for moulding &c BUEHLER Ltd 3 Dec 1969 [4 Dec 1968] 58924/69 Headings B5A and B5F A pneumatic press, e.g. for moulding, comprises an annular piston 27, 29 slidable in an annular chamber formed by inner and outer cylindrical walls 12, 11 and a base-plate 13, means for introducing air under pressure to the space between the piston and base-plate, a spring 31 for urging the piston toward the baseplate, and a yoke 15 carrying a ram 16 disposed within the inner tube 12 and connected to the inner tubular portion 27 of the piston by means of studs 32 extending through circumferentially spaced slots 14 in the inner tube. The ram 16 has a head 23 for compression moulding a charge 25 of plastics material around, e.g. a metallurgical sample 24 for examination purposes. Moulding is effected within a cylinder 21 having a threaded cap (22) and heating means (26), Fig. 2 (not shown).
Patent GB-1361398-A (GB)
Title: Manufacture of copper phthalocyanines
IPC: D06F83/00
Filed: 1970-11-22
Abstract: 1361398 Hot pressing apparatus IMPERIAL CHEMICAL INDUSTRIES Ltd 22 Nov 1971 [15 Dec 1970] 59519/70 Heading D1A A cover for a surface against which fabrics or garments may be hot-pressed comprises a substrate of an organic thermoplastic polymeric material provided with a thermally reflective metallic layer deposited on one or both sides thereof. An abrasion-resistant laquer or other protective coating is preferably provided for the metallic layer. The cover may be perforated or woven from strips of the sheet material and preferably has a resilient backing sheet and a replaceable washable auxiliary cover of cotton or linen. The cover may be attached by tie strings or press studs.
Patent GB-1374807-A (GB)
Title: Photographic material
IPC: G03C1/42
Filed: 1971-12-23
Abstract: 1374807 Photographic silver halide material EASTMAN KODAK CO 23 Dec 1971 [28 Dec 1970] 59960/61 Heading G2C [Also inDivision C2] A light-sensitive photographic element comprises a support bearing one or more hydrophilic colloid layers, at least one layer being a hydrophilic colloid silver halide layer containing a nondiffusible colour-forming coupler that is capable of coupling with an oxidized aromatic primary amine colour developing agent to form a dye and at least one layer containing an inactive colour developing agent precursor that is the reaction product of (1) a water-soluble salt of a polyvalent metal and (2) a water-soluble and diffusible P-phenylenediamine colour developing agent or acid salt thereof. The precursor may be of the formula wherein M represents a polyvalent metal (e.g. cadmium, zinc, lead or copper); q is 2 or 3 and is equal to the valence of M; r is 1 or 2; R, R 1 , R 2  and R 3  each represent H, alkyl or substituted alkyl having from 1 to 5 carbon atoms, alkoxy having from 1 to 5 carbon atoms or acetamido; X represents an anion (e.g. chloride, bromide, iodide. acetate, nitrate, chlorate, bromate or sulphate); m represents 1 or 2 and is equal to the valence of X; n is an integer from 1 to 3; X 1  represents an anion (chosen from list given for X); p represents an integer from 1 to 5. The exposed element developed with an alkaline aqueous solution (e.g. alkali metal hydroxide, alkali metal carbonate and borax).
Patent GB-1376909-A (GB)
Title: Manufacturing process for printed electric circuits
IPC: H05K1/09
Filed: 1971-12-23
Abstract: 1376909 Printed circuits CALOR Y FRIO INDUSTRIAL SA 23 Dec 1971 59969/71 Heading H1R A method of manufacturing printed electric circuits comprises heating the surface of a dielectric coated conductive substrate to render it sufficiently adhesive to receive a metallic coating without impairing the insulating properties of the coating. The substrate preferably comprises vitreous coated steel. The metallic coating, preferably of an aluminium base material, is applied by spraying such that the surface is covered in a uniform manner. Resist material, suitably synthetic resin, is applied over the metallic coating in a predetermined configuration either by the use of a mask or screen or by covering the entire coating and then removing selected portions of the resist. The exposed regions of the metallic coating are then removed by exposure to a chemical solution, preferably an aqueous solution o sodium hydroxide if the metallic coating is an aluminium base material, such that the remaining metallic coating conforms to the configuration of the resist material which is itself removed chemically and/or mechanically. In some cases the resist is only removed where terminal end connections to external circuits are required, said terminal ends being widened by the application of conducting material, e.g. copper.