baber/WOPTO huggingface dataset:
Patent GB-1489391-A (GB)
Title: Liquid sampling system
IPC: G01N1/18
Filed: 1974-11-06
Abstract: 1489391 Liquid level indication; measuring fluid-flow MANNING ENVIRONMENTAL CORP 6 Nov 1974 [28 March 1974 15 Aug 1974]  48011/74 Headings G1H and G1R [Also in Division B8] A flowmeter Fig. 8 comprises means for determining the level of fluid 21 flowing in a channel 13 and for measuring the total volume flow. The meter includes a probe 27 movable into and out of electrical contact with the surface of the fluid 21 by a motor 121, the shaft of the motor having a pulley 119 carrying a cable 26 for the probe 27, and the motor being controlled by the probe to maintain its end in contact with the surface. The liquid level at any instant is shown on an indicator 124, Figs. 8 and 11. The end of the motor shaft also drives a potentiometer 123 connected to a servo-control 126 which is calibrated in accordance with the possible range of fluid levels in the channel 13. The signal from potentiometer 123 and control 126 passes to a motor 127 to drive cams 143. A cam 143 which is related to the cross-section of the channel 13 in use co-operates with a follower 144 and via gearing 147, 148 drives a pointer pen 159 over a moving disc 157, Fig. 11, to give a record of flow-rate. A visual indication of percentage of maximum flow-rate is shown at 132. The gearing 147, 148 is also coupled to a potentiometer 133 which controls the output of pulses from a generator so that the number of pulses emitted is related to the total volume of flow of fluid, this being shown on a counter 137. The pulses may be used to control the taking of samples from the fluid stream after predetermined amounts of flow (see Group B8).
Patent GB-1066840-A (GB)
Title: Improvements in and relating to adhesive tapes and the like
Inventor: BENSON GEORGE WILLIAM
IPC: C09J109/00
Filed: 1964-11-26
Abstract: Pressure-sensitive adhesives contain cis-1,4-polyisoprene as at least part of the elastomeric component.  Other constituents include tackifying resins, e.g. poly-b -pinene, fillers, pigments, softeners, and antioxidants.  Adhesive tapes may be formed by coating, e.g. a polyvinyl chloride or regenerated cellulose film, with these adhesives.  Comparative examples describe the use of natural rubber in place of the cis-1,4-polyisoprene.ALSO:Adhesive tapes are formed by coating e.g. a polyvinyl chloride or regenerated cellulose film with a pressure sensitive adhesive comprising cis -1, 4- polyisoprene as at least a part of the elastomeric component.  The substrate may be prime coated.  Other constituents of the adhesive coatings include tackifying resins e.g. poly-b -pinene rosin and rosin derivatives and coumarone-indene resins, fillers, pigments, softeners, and antioxidants.  Comparative examples describe the use of natural rubber in place of cis -1, 4-polyisoprene.
Patent GB-1453030-A (GB)
Title: Stranded wire rope
IPC: D07B1/14
Filed: 1972-10-20
Abstract: 1453030 Heating rope PYROTENAX Ltd and BALFOUR BEATTY Ltd 19 Oct 1973 [20 Oct 1972] 48459/72 Heading H5H [Also in Division D1] A stay rope is made by applying a plurality of metallic wires around a core comprising a heating element insulated from a surrounding metallic sheath by compacted mineral insulation. In Fig. 1 a layer of steel wires 1 is wound helically around a sheathed mineral insulated conductor 2. The conductor 2 is of copper alloy, the sheath 3 is of copper or copper alloy, and the insulation 4 is compacted magnesium oxide powder. In Fig. 3 (not shown) the wires 1 are replaced by stranded ropes each comprising steel wires (7) helically wound around a central wire (8). In Fig. 5 there are a plurality of cores 12, as defined above, around each of which is a layer of steel wires 11. The invention is stated to be suitable for use with a mast or other upstanding structure in conditions where ice may form, an electric current being passed through the conductor or conductors to prevent icing on the rope.
Patent GB-1033149-A (GB)
Title: Method of forming heat hardened aggregates of iron ores and iron ore concentrates
IPC: C22B1/24
Filed: 1962-12-28
Abstract: A method for agglomerating earthy iron ore fines, or a mixture of earthy iron ore fines and iron ore concentrate fines, comprises screening the fines to minus 3/8 inch, providing a moisture content of from 2 to 5% in said fines, briquetting the fines thus prepared at ambient temperature and at a pressure of from 2000 to 30,000 p.s.i. into briquettes of double-convex shape, depositing a layer of the briquettes from 8 to 20 inches thick upon a porous moving belt, preheating the layer with downdraught heated air at 600 DEG  to 2200 DEG  F. for 3 to 6 minutes, downdraught firing the layer with heated air at 2300 DEG  to 2500 DEG  F. for 6 to 12 minutes to sinter together the ore particles within the briquettes without sintering together the individual briquettes, and cooling the layer before discharging from the belt.  The downdraught firing of the layer may be continued for an additional 1 to 3 minutes with heated air at 1600 DEG  to 2000 DEG  F. before cooling.  1 to 7% of ground limestone may be added to the fines after screening.
Patent GB-1121115-A (GB)
Title: Improvements in and relating to annular hollow cathode discharge apparatus
IPC: H01J17/06
Filed: 1965-11-19
Abstract: 1,121,115. Welding by fusion; brazing. UNITED AIRCRAFT CORP. 19 Nov., 1965 [10 Dec., 1964], No. 49176/65. Heading B3R. [Also in Division H1] In electron beam discharge apparatus which may be used for welding, brazing, zone melting, fibre drawing and vapour deposition the cathode comprises an annular hollow body 20 formed with a narrow slot A extending about its centre, a glow discharge being initiated between the cathode and an adjacent anode under such conditions that a collimated sheet of electrons emanates from the cathode slot A. The cathode may be used for performing welding or other operations from inside a pipe or other workpiece, see Fig. 6A, and the workpiece 22, if of metal, may be used as the anode or a separate anode 32 may be provided. The hollow cathode may be of solid sheet material but is preferably of wire mesh, and is operated in an atmosphere of helium, hydrogen, nitrogen or argon at a pressure of 1 to 1,000 microns. The hollow cathode may of any annular shape or cross-section. The slot A may be positioned to provide a beam directed radially outwards, or a conical or cylindrical beam, Figs. 6B-6F (not shown). The electron beam may be focused by electromagnetic lenses.
Patent GB-1403168-A (GB)
Title: Signs
IPC: G09F7/16
Filed: 1973-10-23
Abstract: 1403168 Number plates; signs YOUNG PROMOTIONS (PTY) Ltd 23 Oct 1973 [30 Oct 1972 31 Jan 1973 28 March 1973] 49381/73 Heading G5C A vehicle registration number plate or other plate is made by heat fusing synthetic resin indicia 4 on to a base support 1 of metal previously coated with synthetic resin 3. A reflective material 2 may be applied to support 1 before coating, and the indicia themselves may include reflective elements. An electric heater is described for pre-heating the coated plate, a magnetic clamp being used to transfer the heated plate to a jig in which the indicia to be attached are mounted between ridges 18. A locating guide 19 is included for the plate 9 which is placed on top of the indicia and pressed down by closure of lid 15 while fusion occurs. A kit of plates, indicia, heater and jig are disclosed.
Patent GB-1081326-A (GB)
Title: Drilling mud
IPC: C09K8/24
Filed: 1964-12-04
Abstract: A drilling mud contains a poly-N-vinyl-carboxylic acid amide as protective colloid.  As well as the vinyl group an N-alkyl group containing up to 6 carbon atoms may be present. The acid may be acetic acid or a homologue containing up to 6 carbon atoms (excluding the carbonyl group).  Polymers exemplified are poly-N-vinyl-N-methylacetamide and poly-N-vinyl-N-propylpropionic acid amide.  The polymers may have a K-value of 85.  The muds contain 5-50 Kg. of polymer per cubic metre, while the clay is in amount 2-10% by weight.
Patent GB-1282785-A (GB)
Title: Photodevelopable silver halide compositions
Inventor: KARLSON RICHARD WARREN
IPC: G03C1/49
Filed: 1969-10-09
Abstract: 1282785 Photo-developable silver halide compositions EASTMAN KODAK CO 9 Oct 1969 [9 Oct 1968] 49605/69 Heading G2C A photo-developable silver halide composition is made wherein silver halide grains are precipitated in an aqueous medium containing a watersoluble nitrite e.g. an alkali metal nitrite, ammonium nitrite or magnesium nitrite. The said medium may contain a colloid binder. Preferably 1À0 x 10<SP>-5</SP> to 1À0 mole of the nitrite is present per mole of silver halide precipitated. The said medium may also contain a thioether silver halide solvent (e.g. 1, 8-dihydroxy-3,6-dithiaoctane in Ex 1) and/or a water soluble lead salt (e.g. lead nitrate in Ex 1). The silver halide grains preferably have predominantly internal sensitivity and the composition may contain a halogen acceptor e.g. a heterocyclic mercapton or thione or a curazole, or a sensitizing dye. The sensitive silver halide may be maintained at 90-200C. during photo-development of the latent image. Emulsions prepared as above have good recording sensitivity and provide images of good discrimination and stability to light.
Patent GB-1127925-A (GB)
Title: Modified polyesters
Inventor: CARRINGTON JOAN LESLEY
IPC: D06M15/507
Filed: 1964-12-07
Abstract: 1,127,925. Sulphonated block copolyesters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 26 Nov., 1965 [7 Dec., 1964], No. 49715/64. Heading C3R. [Also in Division D1] A copolyester containing at least 5 wt. per cent of sulphur in the form of sulphonic acid or sulphonate salt groups consists of alternating blocks A and B, where blocks A derive from sulphur-free dicarboxylic acids and glycols, and blocks B consist of essentially linear chains containing sulphonated dicarboxylic acid and glycol residues; it is prepared by melt blending a homopolymer providing blocks A with an unsaturated homopolymer, to give a copolyester containing 20-50 wt. per cent of blocks A and 80-50 wt. per cent of blocks B, and sulphonating the product with SO 2 , sulphurous acid or a metal sulphite. The copolymer may be used for treating shaped articles, e.g. fabrics, composed of a synthetic crystalline polyester having units identical with those of the blocks A of the copolyester of the invention. The blocks A may suitably be polyethylene terephthalate, optionally containing minor amounts of residues of adipic, sebacic, isophthalic, or sulphoisophthalic acids or diethylene glycol or p-oxybenzoic acid, or they may be polytetramethylene terephthalate, polydimethylenecyclohexane terephthalate, polyethylene naphthalene-2: 6- dicarboxylate, polyethylene diphenoxyethane- 4: 4<SP>1</SP>-dicarboxylate or polyethylene oxybenzoate. Suitable unsaturated polyesters may be prepared from maleic, fumaric, itaconic, citraconic or aconitic acids and ethylene, tetramethylene or diethylene glycols. The sulphonation is preferably carried out using aqueous sulphurous acid or metal sulphite, e.g. sodium metabisulphite, at 50-120 C., to give an aqueous dispersion of the product. This dispersion may then be applied directly, e.g. by padding, to the shaped article, which is then dried and heated above 60 C., or the dispersion may be applied by dyeing processes. The unsaturated block copolymer may be applied to the article before the sulphonation step. To the dispersion for treating shaped articles may be added conventional optical brighteners and antistatic agents. In Examples polyethylene terephthalate is melt blended with polyethylene maleate or citraconate or itaconate then treated with sodium hydrogen sulphite or sodium metabisulphite or (in Example 27) benzyltrimethylammonium sulphite, before or after the blend is applied in aqueous dispersion to a polyethylene terephthalate taffeta or (in Example 3) a polyethylene terephthalate/cotton fabric. At the melt stage there may be added (in Examples 10-17) 2: 4 - dimethyl - 6 - α - methylcyclohexyl-phenol antioxidant, (in Example 26) 2: 5- di - t. - butyl - benzoxazol - 2 - yl - thiophene optical brightener, or (in Example 27) N-stearyldiethanolamine antistatic agent. To the fabric-treating composition may be added antistatic agents and diphenyl (Examples 20-21) or optical brighteners and o-phenyl phenol (Examples 22-25).
Patent GB-1204510-A (GB)
Title: Automatic fluid drainage trap
Inventor: PROCTER REGINALD HENRY
IPC: F16T1/00
Filed: 1967-11-02
Abstract: 1,204,510. Steam traps. R. H. PROCTER, and F. H. W. SANDERS. 30 Oct., 1968 [2 Nov., 1967], No. 49854/67. Heading F4U. [Also in Division F2] A liquid drainage trap comprises a cylinder 1 pivoted about a central horizontal axis and divided into two chambers 11, 11<SP>1</SP>, an exhaust valve 20 for each chamber, an inlet valve assembly for connecting whichever chamber is uppermost to the member, e.g. a pipe 5, to be drained, and weights 28 for opening the exhaust valves. The inlet valve assembly comprises two identical cylinders 12<SP>1</SP> (only one of which is shown), each containing an element 13 formed with three passages therein, and freely slidable pistons 14, 14<SP>1</SP> in chambers 16, 16<SP>1</SP> on opposite sides of element 13. One passage 17 of the element shown is connected to the top of pipe 5 by conduit 3 while the same passage of the other element is connected by conduit 4 to the bottom of pipe 5. Thus, in the position shown one end of passage 17 is blocked by piston 14<SP>1</SP> and chamber 11<SP>1</SP> is placed under the same pressure as that prevailing in pipe 5 and receives liquid therefrom. When chamber 11<SP>1</SP> is sufficiently full, the cylinder pivots, weight 28 slides downwardly within that chamber and first acts on the stem 26 of a pilot valve 21 to bring the chamber to atmospheric pressure and then opens a main valve 23, 24 to discharge the liquid. Simultaneously, pistons 14, 141 slide to cover and uncover the respective ends of passages 17 and the cycle is repeated with chamber 11 uppermost.
Patent GB-1115086-A (GB)
Title: Improvements in blow-moulding machines
Inventor: SAFFRON RONALD GEORGE
IPC: B29C49/36
Filed: 1965-11-24
Abstract: 1,115,086. Blow-moulding; driven rotary table. SAFLEX Ltd. 21 Oct., 1966 [24 Nov., 1965], No. 49870/65. Heading B5A. An extrusion-blow moulding machine comprises a rotary table (4, Fig. 1), a plurality of radially openable moulds (5) at equal angular intervals about the centre of the table, the centres of the mating planes of the moulds being on a common pitch circle of the table, a stationary, extruder. (8) producing a tubular thermoplastic parison, the nozzle thereof (7.) being aligned with the circle in which the moulds are mounted, the table being rotated and successively indexed at positions where a mould is aligned with the nozzle (see Fig. 2, not shown), by means comprising a driven rotary member constituted by the table or coupled thereto (e.g. 6, Fig. 3) having equally angularly spaced radial slots (22) opening at its circumference, and a driving member (23), rotatable about an axis parallel to that of the table and having equally angularly spaced drive elements (e.g. pins 24) preferably at 120 degrees for engagement in the slots, the drive elements entering and leaving said slots while moving normally to the circumference of the driven member one thereof leaving one slot as another thereof enters another slot. There is preferably one blowing nozzle (17) for each die, carried by the table, the nozzles being shifted between a position clear of the line of motion relative to the extruder nozzle (7) and an operative position where the nozzle is engaged with an end of the tubular parison carried in the moulds (Figs. 5, 6, not shown). The extrudate may be severed by a blade (29) reciprocable in the gap between extruder and mould.
Patent GB-1459656-A (GB)
Title: Cathode-ray tube having magnetic shield
IPC: H04N9/29
Filed: 1974-11-20
Abstract: 1459656 Colour television tubes RCA CORPORATION 20 Nov 1974 [29 Nov 1973] 50269/74 Heading H1D [Also in Division H4] In a shadow mask colour tube 12, the electron beams are shielded from external magnetic field and the magnetizable shadow mask may be degaussed by external coil-carrying magnetic shields 40 at the sides of the mask, magnetically continued through internal magnetic shields 44, 48, running back down the cone of the tube from the top and bottom of the mask. The internal shields form a lens shaped opening 50 for the passage of the beams, and are cut away in a wedge shape (Fig. 2, not shown) opposite coils 42 to force the flux into the mask. The external shields are each made in two overlapping parts 56, 58, surrounded by coils 42 which are extended round the shields. In tubes with non-in-line guns the shields may need to be set off horizontal. Degaussing is performed by decreasing A.C. The internal shields attached to the mask-frame prevent extreme beams from passing the edges, but to capture reflected or secondary electrons a grooved ring is placed on the mask-mounting frame adjacent to the shields (Figs. 8, 9, not shown).
Patent GB-1153653-A (GB)
Title: Marine Structures
IPC: B63B35/44
Filed: 1966-10-10
Abstract: 1,153,653. Offshore platform. LITTON INDUSTRIES Inc. 10 Oct., 1966 [11 Oct., 1965], No. 50621/65. Divided out of 1,153,652. Heading E1H. A marine structure comprises three hollow columns 23, 24, 25 supporting a triangular working platform 12, the columns being capable of being flooded so that the structure can be maintained in a floating position on the surface of the water, or in a semi-submerged position in which the columns are partly submerged, or in a bottom-sitting position in water sufficiently shallow to permit the platform to remain above water level when the structure is in the bottom-sitting position, and each of the columns 23, 24, 25 is supported by a hollow footing such as 27 at its base, the footings having a boat shaped contour and being orientated to define a centre line in the direction in which towing meets least resistance, those footings 31, 32 which support the stern columns being toed-in with respect to the centre-line.
Patent GB-1099653-A (GB)
Title: Filtration apparatus for performing continuous filtering operations, using magnetizable particles
IPC: B01D33/06
Filed: 1964-12-14
Abstract: 1,099,653. Loose-material filters for liquids. K. IKI and Y. IKI. Dec. 14, 1964 [Dec. 13, 1963; Jan. 30, 1964; Feb. 3, 1964], No. 50912/64. Heading B1D. Particulate magnetic material, or such material mixed with non-magnetic material,- is is supported between mutually-inclined magnetic pole surfaces and used as filter material, and means are provided for cleaning one portion of the material at a time, mechanically or by backwashing or washing, so that filtration may proceed, continuously or intermittently. As shown, a rotary perforate drum 24 has an array of equally-spaced triangular-section flanges projecting from its outer surface; these flanges are axially magnetised, and the spaces between them are filled with particulate magnetisable material, (e.g. iron sand or iron powder). Unfiltered liquid enters an outer tank 25 at 41, and filtrate is discharged through a hollow support member 26. During filtration, foreign particles are scraped off by a scraper 33 and fall at 35 to the bottom of the tank. As the drum rotates clockwise, the particulate material reaching a wash casing 29 is combed off to a certain depth by a rotor 28 and the material removed is agitated and washed at 32. Turbid liquid is withdrawn at 31 from casing 29 by a pump and returned at 40 to tank 25, where settling of foreign particles occurs. The washed filter particles again enter the inter-magnet spaces from the right-hand side of rotor 28, and on reaching a hopper 36 are supplemented - automatically, if necessary, by further filter material 37. Finally the material is compressed by a roller 38 before resuming its filtration function. Foreign particles are removed from the bottom of tank 25, e.g. by a screw conveyer. In the embodiment of Figs. 15 and 16 (not shown) the filter drum is rotated intermittently, and while it is at rest a slotted suction device (taking the place of casing 29) is traversed between fixed horizontal guides along the full length of the drum, so as to draw off a small quantity of filtrate and solids. The suction pump discharges this mixture into a hopper, (above the device), where filter material particles sink, but foreign particles and liquid overflow into the surrounding tank for settlement and filtration. The filter material particles are fed from the hopper back on to the drum and pressed by a roller. In Figs. 17 to 19, (not shown), the drum periphery is divided radially into a number of axially-extending cells, and openings into them in one end of the drum cooperate with a fixed grooved and apertured valve plate against which that end rotates. Filtration is continuous, with most cells operating under suction. The cell for the time being at the top of the drum is backwashed, and the filter material on its outer surface is stirred and, optionally, washed from above; suction is relieved in one or two cells on either side of it. A compressing roller for the cleaned material is again provided.
Patent GB-1077630-A (GB)
Title: A connection device for transmission of high frequency energy
IPC: H01R13/646
Filed: 1965-12-01
Abstract: 1,077,630. Coaxial cable connectors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 1, 1965 [Dec. 4, 1964], No. 50968/65. Heading H2E. A connection device for two tubular highfrequency conductors, which may rotate relative to one another, has a contact ring 19 cut into several separate sections and held together by a spring 23 in a groove (22) in the ring. The two conductors to be connected have bevelled surfaces 20, 21 which co-operate with the rounded inner surface of the ring, the ring being somewhat expanded against the spring 23 so as to provide good electrical contact between the ring and each of the rotating conductors. The inner conductors are two relatively rotating coaxial cables (Fig. 1, not shown) are connected through sockets (9) and contacts (11) and (12). The outer conductors of the cables are received in insertion blocks (7) in each section of the twopart metal housing, the housing being held together by a nut (4). In a modification (Fig. 5, not shown) the ring (19) is held over the end of a fixed cable by a flange (29), while a second rotating cable may be moved axially into and out of contact with the ring.
Patent GB-1173659-A (GB)
Title: Method of Anchoring of a Metallic Member to Plastics.
IPC: B29C65/48
Filed: 1967-11-09
Abstract: 1,173,659. Making commutators. FORD MOTOR CO. Ltd. 9 Nov., 1967 [12 Dec., 1966], No. 50980/67. Heading B3A. [Also in Divisions B5 and H2] A metallic member having an interior, circular cylindrical surface is anchored to plastics by forming a plurality of ribs 17 of rectangular section, e.g. by extrusion, extending inwardly from this surface, deforming each rib simultaneously at 16 with an object substantially harder than the member to form T-shaped ribs and injecting or allowing plastics material 22 to flow between the T-shaped ribs 17 whilst the member is located in a suitable mould and allowing the plastics material to solidify. Copper commutators may be made by this method, the ribs being deformed, e.g. by a steel ball. Insulator slots are sawn in the end of the commutator blank between which the plastics material is cast or moulded to form a series of spaced insulated elements after placing an aluminium core sleeve 21 inside the cylindrical blank. The commutator is finally machined to finish the inside diameter of the sleeve 21 to the required size and machine away the members bridging the T-shaped ribs which then form individual, insulated commutator segments.