baber/WOPTO huggingface dataset:
Patent GB-1266500-A (GB)
IPC: C22B9/02
Filed: 1968-05-31
Abstract: 1,266,500. Refining metal. BRITISH ALUMINIUM CO. Ltd. June 2, 1969 [May 31, 1968], No.26333/68. Heading C7D. Inclusions are removed from molten metal by flowing it through a multiplicity of flux-lined channels. Prior to this operation, the metal may be de-gassed by passing inert gas therethrough. As shown, molten Al or Al alloy enters chamber A of crucible 1 from launder 7 through flux cover 9 and is de-gassed by e.g. N 2 , Ar, CO or CO 2  which is supplied through tube 3 and emitted from porous plug 3a. The metal flows downwards through bed 5 of flux-coated Al 2 O 3  balls (the gaps between which providing the multiplicity of fluxlined channels) in which inclusions are removed, passes under baffle 2 and upwards through bed 6 of uncoated balls in chamber B in which intermetallic particles and residual flux are removed, and then flows out over pouring lip 1a to casting launder 8. In modifications, further beds of uncoated balls are provided, Figs.6 and 7 (not shown); and de-gassing is performed in a separate first vessel prior to treatment in a crucible containing flux-coated and uncoated balls, Figs. 8 (not shown). Instead of Al 2 O 3 , the beds may be made of granules of chromite, corundum, forsterite, magnesia spinel, MgF 2 , periclase, silicon carbide, or zircon. Suitable fluxes are based on KCl/NaCl or BaCl 2  possibly with additions of MgCl 2 , NaF or cryolite, or CaF 2 . Instead of using flux-coated balls to provide flux-lined channels, such channels may be obtained (a) by overlapping spaced flux-lined baffles, or (b) by using pads of coarse steel wool or turnings which have been dipped in liquid flux.
Patent GB-1266869-A (GB)
IPC: G01N33/00
Filed: 1968-06-24
Abstract: 1,266,869. Detecting impurities in gases. J. E. LOVELOCK. June 17, 1969 [June 24, 1968; June 4, 1969], No.30079/68 and 28314/69. Heading G1N. The presence of a contaminant in a gas sample is detected by reacting the contaminant with a reagent to form a product which absorbs electrons strongly, and detecting the product in an electron capture detector. The sample is drawn through a reactor 1 and scrubber 2 by a pump 4, the reactor comprising a porous tube into which the reagent flows through the pores to react with the contaminant. The reaction occurs in the bore of the tube and the product is unable to touch and react with the tube walls. A part of the reacted sample is drawn off at 3 and passed through a chromatographic column 5 to separate other electron absorbers such as oxygen, and then enters the detector 7. A signal indicative of the contaminant is amplified and displayed at 9. The removal of oxygen, which may occur before or after the reactor, Figs.2, 3 (not shown), may alternatively be carried out diemically, or by a pallactium tube process, or electrolytically in which case the power generated may be used to drive the pump. The oxygen level may also be lowered by diluting the sample with an inert gas. The invention may be used to detect atmospheric pollution, and a table of contaminants and reagents is given.
Patent GB-1288590-A (GB)
IPC: H01B3/30
Filed: 1969-12-16
Abstract: 1288590 Coating TOKYO SHIBAURA DENKI KK 16 Dec 1969 [17 Dec 1968] 61302/ 69 Heading B2E [Also in Division C3] Electrical insulators extending between metal parts of different potential are coated, e.g. by spraying or brushing, with insulating coating compositions comprising (1) a coating material which is hydrophilic and does not hinder ion migration, (2) a cation exchange resin, (3) an anion exchange resin and (4) a solvent for (1), to prevent deterioration of to restore the insulating characteristics of the insulator. The coating material may be a natural resin, e.g. shellac, rosin or copal; a cellulose derivative, e.g. cellulose acetate, cellulose acetate/butyrate or ethyl cellulose; or a synthetic resin, e.g. polyvinyl chloride, polyvinyl acetate or an alkyd, silicone or acrylic resin. Specified cation exchange resins are sulphonic acid, carboxyl and phenol group containing resins; and specified anion exchange resins are quaternary ammonium and amine group containing resins. The compositions may also contain conventional drying, setting and dispersing agents, plasticisers and pigments. In examples insulating plates of phenolic resin laminations carrying copper electrodes bolted thereon are sprayed with compositions comprising styrene/ divinyl benzene ion exchange resins having carboxylic and amine groups, ethyl acetate, butyl acetate, isobutanol and toluene and as coating material (A) acrylic resin, (B) nitrocellulose, rosin, diol/phthalate/fatty acid alkyd resin and phthalate ester plasticiser, and (C) vinyl acetate/vinyl chloride copolymer; and insulating plates carrying silver-plated copper terminals are brushed with compositions comprising the above ion exchange resins and solvents, dimethyl ketone, glycol monoethyl ether and as coating material (D) cellulose triacetate and rosin and (E) acrylic resin and rosin.
Patent GB-1290496-A (GB)
IPC: B07B13/00
Filed: 1969-12-10
Abstract: 1290496 Separating apparatus H A NORLYK & SONNER AS 10 Dec 1969 [10 Dec 1968] 60208/69 Heading B2H [Also in Division B8] Apparatus for separating stones and lumps of earth from potatoes comprises an endless belt conveyor 2 onto which the potatoes, stones and lumps are delivered, the conveyor having upstanding flexible, e.g. rubber, fingers of such stiffness that only the stones and lumps sink between the fingers, and are discharged over one end of the conveyor while the potatoes remain on top of the fingers and are removed laterally of the conveyor by means of individually flexible members 4, e.g. rubber teeth or bristles, arranged in a row obliquely across the conveyor and having imparted thereto a to-and-fro movement transversely of the row. The members 4 may be pivotally mounted as a comb assembly on a shaft 3 driven by an eccentric mechanism which imparts the to-and-fro movement. Several combs may be arranged behind each other in the direction of travel of the conveyor. Instead of being pivotally mounted, the members 4 may reciprocate to-and-fro, in which case several combs arranged behind each other may be fixedly interconnected and may be driven by the same driving mechanism. In operation, stones, lumps of earth and potatoes are fed on to the conveyor 2 via a hopper 9 and an upwardly moving conveyor 1. The potatoes are discharged on to a side conveyor 5 and the stone and lumps on to an end conveyor 8. Rubber barriers 6, 7 arranged respectively at the side of the conveyor 2 and along the conveyor between the fingers 4 with their upper edges level with the free ends of the fingers direct the sunken stones and lumps towards the conveyor 8 while allowing the potatoes to be discharged laterally.
Patent GB-1295645-A (GB)
IPC: G05B11/01
Filed: 1969-11-21
Abstract: 1295645 Automatic control EASTMAN KODAK Co 21 Nov 1969 [25 Nov 1968] 57114/69 Heading G3R An electrical signal dependent on the moisture content of a web being dried by a heat exchanger is compared with a reference so that values outside predetermined limits adjust the supply of thermal energy to the heat exchanger at intervals sufficient to allow for the time lag in the heat exchanger. In Fig.3, a paper web 24" passes over a steam heated dryer 12" during manufacture and a moisture gauge 22" downstream of the dryer is reciprocated across the width of the web by a motor 28". Signals from gauge 22" representing moisture content of the web and position of the gauge are respectively applied to meters 40 and 42. If moisture content is outside limits determined by adjustable markers M 1 M 2 , the pointer of meter 40 produces a correction signal 20" a or b according to the sense of deviation. The zone over which correction is effective is determined by the setting of limits P 1 P 2  associated with the pointer of meter 42 at which a bistable circuit 44 is so controlled that switches 16a and b are closed when the pointer is between the limits and gauge 22" is traversing a corresponding portion of the width of the web. Any correction signals produced by meter 40 in this zone cause operation of a servomotor 58 to adjust a steam valve 60 in the appropriate sense to restore the moisture content between its limits. The speed of motor 28" is so chosen that the interval between adjustments is equal to or greater than the period necessary for the correction signals to become effective. Lowpass or time delay filters 50, 52 reject correction signals of short duration and timers 54, 56 determine the period of each operation of motor 58. Alternatively the magnitude of adjustment may be made dependent on the extent of the deviation. In a modification, logic circuits responsive to signals from a potentiometer operated by motor 28" replace switches 16"a and b. An arrangement in which gauge 22" is stationary at a particular transverse position, and switches 16"a and b are operated at a suitable frequency by a pulse generator, is referred to.
Patent GB-1301360-A (GB)
IPC: G11B5/64
Filed: 1970-10-22
Abstract: 1301360 Electro-plating iron-nickel ironcobalt alloys; electroless Ni-Co plating STANDARD TELEPHONES & CABLES Ltd 22 Oct 1970 50191/70 Headings C7A C7B and C7F [Also in Division H1] A magnetic storage film comprises a conducting substrate bearing a first layer of iron-nickel or iron-cobalt alloy in which the iron is the major constituent (e.g. at least 95%) and a second layer of nickel-cobalt alloy in which the nickel is the major constituent (e.g. 65-83%) the coercivity of the second layer not exceeding 3 oersteds. An additional nickel-iron film having at least 80% nickel may be included between the substrate and the first layer. The film is made by electroplating the substrate with the first layer, after electro-plating with the optional additional film and then electrolessly depositing the second layer. A specified electro-plating bath is FeCl 2 , 4H 2 O (370g/l), NiCl 2 , 4H 2 O (18g/l) AlCl 3 , 6H 2 O (220g/l) maintained at pH 0À7-1À0 (measured at 65‹C) with conc HCl. The cathode potential is maintained between the standard reduction potentials of Ni and Fe to form the additional film and then raised above the standard reduction potential of Fe to form the first layer. The electroless deposition bath may be NiCl 2  6H 2 O (13À5g), CaCl 2  6H 2 O (17À5g) NaH 2 PO 2  (14À9g) Na 3  C 6 H 5 O 7  5H 2 O (50g) NH 4 Cl (40g) in 1 litre of aqueous solution maintained at pH 6-7 (measured at 20‹ C) by addition of ammonia. In an Example, a polished molybdenum substrate is plated in a bath containing iron anodes and a calomel electrode for 2 mins at 350mV, and then for 7 mins at 500 mV. The second layer is then formed by immersing the plated substrate in the electroless deposition bath at 90‹C for 3 mins to produce a 4000A thick film of 68% Ni, 30% Co and 2% P.
Patent GB-1311169-A (GB)
Title: Sleeping bag
IPC: A47G9/08
Filed: 1970-07-28
Abstract: 1311169 Sleeping bags REED INTERNATIONAL Ltd 19 July 1971 [28 July 1970] 36552/70 Heading A4G [Also in Division B8] A sleeping bag or sack is formed from a multiply paper sack in which a layer of thermal insulating sheet is disposed between two plies and extends over only one side of the sack when in a flat, sleeping-in condition. The layer may be a moisture impermeable plastics, e.g. expanded polystyrene, and lie between an inner crepe paper and an intermediate kraft paper, the sack having an outer laminated kraft or polythene paper. The outer laminated ply may be formed by a moisture impermeable laminating adhesive. The insulating layer is meant to be under the sleeper in use.
Patent GB-1311994-A (GB)
Title: Movable contacts for electrical apparatus
IPC: H01B1/00
Filed: 1970-04-22
Abstract: 1311994 Contact material VEREINIGUNG VOLKSEIGENER BETRIEBE ELECTRISCHE KONSUMGœTER 22 April 1970 19267/70 Heading C7D [Also in Division H1] Electrical contacts e.g. slip rings and commutators are made from a mixture consisting of (a) carbides, borides, silicides, oxides or nitrides of metal, metalloid or non metals (b) graphitic carbon and (c) an organic or inorganic binding compound. The preferred mixture contains 40-98% of (a) and (b) with 60-2% of (c) where (a) is 1-100 micron SiC and the graphite has a grain size up to 1 mm. The binder may be clay, silicates, organic resins or organic silicones and the mixture can be shaped by vacuum extrusion, moulding or hot spraying at room temperature, the melting point of the resin or at the setting temperature of the resin. A further heat treatment at 600-1600‹C may be effected to carbonize the resin binder.
Patent GB-1313541-A (GB)
Title: Circuits for electrical inverters
IPC: H02M7/515
Filed: 1970-07-01
Abstract: 1313541 Electric converter TEXAS INSTRUMENTS Ltd 1 July 1970 31876/70 Addition to 1303083 Heading H2F In an electric converter of the type disclosed in Specification 1,303,083, the centre-tapped primary winding of the transformer is replaced by a centre-tapped inductive load. This may comprise the field windings of a synchronous motor for example.
Patent GB-1314177-A (GB)
Title: Sighting devices for fire-arms
IPC: F41G1/387
Filed: 1969-09-09
Abstract: 1314177 Sights for firearms WESTLEY RICHARDS & CO Ltd 7 Sept 1970 [9 Sept 1969 31 March 1970] 44388/69 and 15307/70 Heading F3C A sighting device for a firearm comprises a tubular sight body 12, integral with a base 13 which is adapted to be detachably located on an upwardly directed longitudinal rib 10 provided on the barrel of the firearm by adjusting means. The means consists of a screw 16 for co-operation with a tapped hole in the rib 11, two opposed clamping screws 15 in threaded eng agement with apertures in depending flanges 14 of the base 13, and a set-pin 17 screwed into the base for engagement with the upper surface of the rib to adjust the elevation of the sighting device. The sight body 12 includes a lens 21 which focuses on to an aperture, preferably in an opaque material, which coats the rearward face of a cap 24 of fluorescent material.
Patent GB-1315363-A (GB)
Title: Liquid detergents
IPC: C09K23/14
Filed: 1970-05-29
Abstract: 1315363 Dishwashing compositions UNILEVER Ltd 26 May 1971 [29 May 1970] 25920/70 Heading C5D Unbuilt compositions comprising a synthetic anionic surface active agent and an antiresoiling agent may be used in manual dishwashing provided (a) the anti-resoiling agent passes a specific test in which it is used to clean a dirty pan, (b) the composition produces a foamvolume in another specific test which is at least 70% of that produced by a standard surface active composition and (c) the composition passes a second cleaning test similar to but different from (a). The composition may also include a solubilizing agent and an acid. Surface active agents specified include: sodium dodecyl benzene sulphonate, sodium C 14-16  alpha-olefin sulphonate, and sodium C 13-18  alkane sulphonate. Anti-resoiling agents specified include: a phosphate monoester of poly(oxyethylenated)- p - tert. - nonylphenol, a phosphate monoester of a poly(oxyethylenated) C 11-15  secondary alcohol and C 11-15  secondary alcohol monoester phosphate. Solubilizers specified include: poly(oxyethylenated) octyl or nonyl phenol and poly(oxyethylenated) C 11-15  secondary alcohol. Acids specified include citric, acetic, malonic, lactic, and partial salts thereof. Other components specified include: lauric diethanolamide, sodium sulphate, ethanol, ammonium hydroxide, sodium hydroxide and water. The composition may be a paste for inclusion in a scouring pad.
Patent GB-1320516-A (GB)
Title: Fabric laying machine
IPC: B65H45/103
Filed: 1970-09-04
Abstract: 1320516 Laying fabric CUTTERS MACHINE CO Inc 4 Sept 1970 [12 Sept 1969] 8019/ 73 Divided out of 1320515 Heading D1S The fabric laying machine described is identical to that disclosed in Specification 1320515 1320517 and 1320518, but the claims relate to means for overfeeding the fabric supply to momentarily accelerate this supply to the laying unit when a reversing switch is actuated by the laying unit at one of the longitudinally spaced reversing stations. The overfeed means 150 comprises a roller (20), Fig. 1 (not shown), supported on a shaft 152 and over which the fabric is trained as it passes to the laying unit. A pinion 151 is coupled to the shaft 152 by an overriding clutch (not shown) and engages a rack 153. At each reversing station, upon actuation of an overfeed switch, a solenoid 154 thrusts the rack 153 upwardly to feed the roll (20) at a higher rate than normal to prevent undue tension on the fabric as the laying unit reverses.
Patent GB-1324222-A (GB)
Title: Clamps for securing elongate members such as for example bus-bars  and the like to supporting structures
IPC: H02G5/02
Filed: 1972-04-05
Abstract: 1324222 Clamps LONDON ENGS PATTERN CO Ltd 5 April 1972 [5 April 1971] 8655/71 Heading E2B A clamp for securing bus-bars to a support comprises a movable jaw 14, 15 which slides in a hollow jaw member 11, both parts having an axial hole 18 for receiving a bolt securing them together and, if desired, to the support, at surface 12. The bar is gripped between jaw surfaces 15, 17 and rests on ledge 13. The movable jaw may be of aluminium.
Patent GB-1324330-A (GB)
Title: Exact fare system
IPC: G07F9/06
Filed: 1971-04-19
Abstract: 1324330 Fare collection apparatus QONAAR CORP 19 April 1971 [19 March 1970] 55239/72 Divided out of 1324327 Heading G4T The subject-matter of this Specification is identical with that disclosed in Specification 1,324,327, but the claims are concerned with the arrangement for automatically or manually dumping the fares from the inspection area, comprising a counterweighted, pivotally mounted, horizontally disposed plate which is tilted to dump the fares either by the weight of an accumulation of fares on the plate or by manual operation of a trip bar operably connected to the plate.
Patent GB-1328382-A (GB)
Title: Manufacture of 1,1-disubstituted-4,4-bipyridylium salts
IPC: C07D211/82
Filed: 1971-04-19
Abstract: 1328382 Process for 1,1<SP>1</SP>-disubstituted-4,4<SP>1</SP>- bipyridylium salts IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [3 April 1970] 15960/70 Addition to 1277733 Heading C2C The invention comprises reacting an N-substituted pyridinium salt with a cyanide (introduced in the form of hydrogen cyanide or a ketone cyanohydrin) under basic conditions and subsequently oxidizing the compound obtained (a corresponding 1,1<SP>1</SP>- disubstituted - 1,1<SP>1</SP>- dihydro-4,4<SP>1</SP>-bipyridyl) to afford the title, herbicidal salt; the substituents contain up to 10 C and include, e.g. alkyl, hydroxyethyl and 3,5- dimethylmorpholinoacetyl (the pyridine rings can be substituted).
Patent GB-1333340-A (GB)
Title: Transporters
IPC: B62B3/10
Filed: 1972-07-18
Abstract: 1333340 Trollies SELLING WINGS 18 July 1972 33495/72 Heading B7B A transporter for use with a roll of material, e.g. a carpet, comprises a carrier sleeve 13, which in use extends through the roll, and two trolleys 1, 2 running on castors 3, 4. Each trolley 1, 2 has an upright 5, 6 on which is mounted an arm 9, 10 by means of horizontal trunnions 7, 8. Each arm 9, 10 has a horizontal stubshaft 11, 12, provided with roller bearings, for insertion into an end of the sleeve 13 and an extension lever 19, 20. To lift a roll, the carrier sleeve 13 is placed through the roll and the stub-shafts 11, 12 are inserted into the ends of the sleeve 13 while the arms 9, 10 are in the pivoted-down position (left-hand side of Fig.). Extension levers 19, 20 are now used to pivot arms 9, 10 to the vertical position (right hand side of Fig.) where they may be locked by pins 23.  The carpet may be transferred to a support stand comprising e.g. six sleeves rotatably mounted between two A-frames which run on castors (Fig. 1, not shown).
Patent GB-1343229-A (GB)
Title: Traffic signal installations
IPC: G08G1/07
Filed: 1972-03-02
Abstract: 1343229 Controlling traffic signals SIEMENS AG 2 March 1972 9816/72 Heading G4Q A road-traffic signal -installation, e.g. at a T-junction (Fig. 1) is controlled by a timer Z (Fig. 3b) which steps from one of its outputs to another after a respective set period of time and which automatically executes selection of any one of the plurality of phases Ph1...Ph4 in accordance with an arbitrary selection process. Selection of a given phase may be initiated manually or automatically in a time-dependent or traffic-dependent manner, e.g. by a computer. Each signal of the installation is controlled by a number of logic element chains (Figs. 3a, 3b). Each logic element chain is controlled, via the timer Z, by a phase-selector switch Sb1 ... Sb4 to select the phase to be switched in, and a phase-termination switch Sb11...Sb14 associated with the phase to be terminated. The arrangement is such that throughout the selection process minimum protection times for the signals SgA... SgE are maintained. The circuits shown in Figs. 3a and 3b show detail applicable to signals SgA and SgE, though similar circuits for the other signals are provided. In operation, assuming that phase 3 is switched in, the counter Z is at its last step (output 15) and bi-stable switches Sb13 and Sbe are set up. By depressing push-button T1, the phase change from Ph3 to Ph1 is initiated; bistable switch Sb1 and pulse generator Tg are set up as a result. Switch Sb1 triggers monostable switch Sm1 via OR-gate Gol, and hence counter Z, which is reset to zero, ready for advancement through AND-gate Gu2 which previously was inhibited by the counter output 15.  Bi-stable switch Sb1 applies a voltage to inputs 1 of jumper banks Rf11 ... Rf15 and switch Sb13 applies a voltage to inputs 3 of banks Rf21 ... Rf25; also, the fifteen outputs 0 ... 14 of counter Z supply, successively at intervals of one second, voltages to the inputs 0 ... 14 of banks Rf31 ... Rf35. The switching of each signal is enabled via respective AND-gates Ga5, Ga6 and Ge5, Ge6. The different signal protection times for each phase change are determined from banks Rf21 and Rf31 and associated AND-gates, respectively Ga1 ... Ga4 and Ge1 ... Ge4.
Patent GB-1348599-A (GB)
Title: Float-controlled valve
IPC: F16K31/26
Filed: 1972-04-06
Abstract: 1348599 Flushing cisterns IFOVERKEN AB 6 April 1972 [16 April 1971] 15979/72 Heading E1C [Also in Division G3] In a float-controlled cistern-supply diaphragm valve, the cross sectional area of the inlet passage 11 and all other passages leading to the outlet passage 8 is at least four times as large as the cross-sectional area of the outlet passage. The annular diaphragm closure member 16 is clamped at its inner and outer peripheries and moves relative to a seat 15 therebetween in accordance with the fluid pressure above the diaphragm which pressure is controlled by a pilot valve 20. The latter is moved by float-operated lever 23 and allows the chamber above the diaphragm to communicate with inlet pressure via passage 18 or to be vented when seal 22 moves away from the bore in the body in which the valve member 20 slides. Bore 27 and washer 28 prevent backflow. Outlet passage 8 terminates in a wider pipe section (9).