baber/WOPTO huggingface dataset:
Patent GB-1464306-A (GB)
Title: Method and apparatus for wrapping goods in a stretchable film material
IPC: B65B11/54
Filed: 1974-12-23
Abstract: 1464306 Seaming ASAHI-DOW Ltd 23 Dec 1974 [29 Dec 1973 21 June 1974 22 June 1974 2 July 1974 15 July 1974] 55509/74 Heading B5K [Also in Division B8] A support for a tray being wrapped (see Division B8) has impulse heaters 232, 234 which can be raised in the support after the edges of a wrapping sheet have been tucked beneath the tray. The heaters can be raised by bell-crank levers 250-256 engaging pins 260-266 thereon. The heaters are covered by silicone rubber or tetrafluoroethylene and are composed of an insulator or a metal. A control circuit simultaneously raises the heaters and switches on the current, but switches off the current before the heaters are lowered.
Patent GB-1367288-A (GB)
Title: Apparatus for producing cylindrical domains
IPC: G11C19/08
Filed: 1971-12-03
Abstract: 1367288 Magnetic storage arrangements INTERNATIONAL BUSINESS MACHINES CORP 3 Dec 1971 [31 Dec 1970] 56159/71 Heading H3B A cylindrical domain is produced at a desired location in a magnetic sheet capable of supporting such domains, e.g. an orthoferrite or garnet, by applying a bias field Hz normal to the sheet to wholly saturate the sheet, followed by the application of a local field #Hz directed oppositely to the bias field, the level of the bias field being then reduced so that nucleation of a cylindrical domain takes place. The desired location may be defined by a permalloy bar 12, Fig. 1, on the sheet 10, or by a conductor loop 26, Fig. 3. In both arrangements the bias field Hz is produced by a conductor loop 14 carrying current Iz, while in Fig. 1 a rotating magnetic field H in the plane of the sheet is produced by appropriately varying currents Ix, Iy in orthogonal windings 16, 18, respectively. In the Fig. 1 arrangement a cylindrical domain 24 is produced at the end of bar 12, Fig. 1C, when the rotating magnetic field is in direction HY and the bias field Hz is reduced in magnitude at this time, the directional field HY producing at one end of the bar a local field #Hz through the sheet in the opposite direction to the bias field. Subsequently the bias field is restored to its original level which reduces the diameter of the nucleated domain 24, Fig. 1D (not shown). Two permalloy bars respectively located on opposite surfaces of the sheet and which may or may not overlap are used in a modification, Fig. 2 (not shown). In Fig. 3 the localized field #Hz is produced by current I 1  in conductor loop 26 and additionally, if required, by a current I 2  in a loop 28 on the opposite surface of the sheet. A domain may be produced at a magnetic non-uniformity in the sheet.
Patent GB-1488260-A (GB)
Title: Hydrometallurgical process for the production of copper
IPC: C22B15/00
Filed: 1974-12-31
Abstract: 1488260 Hydrometallurgical copper production DUVAL CORP 31 Dec 1974 [14 Jan 1974] 56198/74 Heading ClA A hydrometallurgical process for the production of metallic copper in which there is provided a cyclic system capable of steady state operation, comprises an oxidation stage in which materials containing copper sulphide ore concentrates are oxidized in a solution containing ferric chloride and cupric chloride until there is substantial solubilization of the copper content of said materials in the form of cupric chloride, a reduction stage separate from the oxidation stage in which at least a substantial portion of the cupric chloride in the solution from the oxidation stage is reduced to cuprous chloride, an electrolysis stage in which metallic copper is recovered and cupric chloride is regenerated by electrolysis of the cuprous chloride solution from the reduction stage, and a regenerationpurge stage separate from the reduction and electrolysis stages in which the ferrous chloride in the solution from the electrolysis stage is reacted with oxygen in the presence of the regenerated cupric chloride to regenerate the ferric chloride required in the oxidation stage and to precipitate, by hydrolysis, compounds including those having the iron-sulphate ratios of jarosite to thereby remove excess iron as well as sulphate ions and other impurities present in the solution; wherein in said process the total chloride ion concentration is maintained at a level in the solution throughout the process by the addition of a saline metal chloride compound selected from potassium chloride, magnesium chloride, a mixture of magnesium chloride and potassium chloride, or a mixture of any of the foregoing with sodium chloride to maximize the degree of reduction of cupric chloride to cuprous chloride in the reduction stage with minimal loss of copper from solution. The available reactive chloride content may be controlled to allow some ferric chloride to remain in the solution to assure that all the reacted copper is present in solution as cupric chloride.
Patent GB-1495980-A (GB)
Title: Production of sheet structures comprising polyethylene and polyurethane foam layers
IPC: B29C51/08
Filed: 1974-12-31
Abstract: 1495980 Laminates DYNAMIT NOBEL AG 31 Dec 1974 [31 Dec 1973] 56238/74 Heading B5N A process for the production of a multilayer sheet structure comprises bonding at least one surface of a pre-formed polyurethane foam element, e.g. a sheet to a layer of crosslinked polyethylene foam by the application of heat. The polyethylene foam may have closed cells and been cross-linked using a cross-linking agent or by irradiation. The thermal bonding may be effected by flame-lamination, hot-air lamination, hot-wire welding, U-blade welding or by irradiation, e.g. infra-red radiation. One or both of the foam plastics layers may be covered on one surface thereof, prior to bonding with an elastic extensible sheet, e.g. of polyvinyl chloride, polyamide, polyester, acrylonitrile-butadiene-styrene terpolymer or polyethylene or by a textile covering, e.g. a woven or knitted fabric of polyamide, cotton, rayon or blended fibres. The products of the process may be used as upholstery components.
Patent GB-1284244-A (GB)
Title: Baking chamber lamp
Inventor: HERRMANN HELMUT
IPC: F21V19/00
Filed: 1970-11-26
Abstract: 1284244 Lighting ovens ELEKTROGERATEWERK SUHL VEB 26 Nov 1970 56309/70 Heading A4D [Also in Division F4] A baking chamber lamp has a carrier 6 for securing its incandescent bulb 4 upon a baking chamber wall, and a cup-shaped lamp cover 1 which seals off the opening 6a in the wall 9 through which the lamp extends, the means of securing the cup on to the wall comprising radially outwardly extending retaining hooks 24 protruding at an angle from the wall so as to fit in recesses rising spirally within the cup mounting in the form of a threestart Archimedean spiral in a direction such that when the hooks are introduced at the beginning of the spiral recesses and the cup is turned in a fastening direction the hooks ride up the spiral recesses and secure the cup on to the hooks. Alternatively the retaining hooks may be formed on the cup mounting and the spiral recesses may be formed in the hole in the wall, Figs. 5 to 7 (not shown). The lamp bulb 4 and its holder 5 are supported by a U-shaped carrier 6 whose two arms 7, 8 protrude through apertures in the wall 9, one arm 7 having two lugs bent in opposite directions, which fit through two appropriate apertures on one side of the hole in the wall and the other arm having one lug which snaps into an aperture formed on the other side of the hole in the wall, this latter aperture having two parallel abutment surfaces offset from one another, Fig. 3 (not shown) to provide a more secure fastening.
Patent GB-1384238-A (GB)
Title: Branched aromatic polyesters
IPC: C08G63/685
Filed: 1971-12-06
Abstract: 1384238 Cyanurate esters; polybenzoates CARBORUNDUM CO 6 Dec 1971 [8 Dec 1970] 56490/71 Heading C2C [Also in Division C3] A polyester has the formula in which each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> consists of a plurality of moieties selected from in which a, b and c represent the total number of the respective moieties in each of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP>, and have the values, a from 0 to 40 and b and c each 0 to 20, subject to the conditions that the average value of a + b + c for R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is 2 to 40 and that when a is 0, b and c are each 1 to 20, when b is 0, a is 1 to 40 and c is 0 or 1 and when b and c are each 0, a is 2 to 40, n is 0 or 1 and when n is 1, m is 0 or 1, X represents -O-, represents a meta or para substituted benzene ring, and the oxy groups of the moieties of the Formulµ II and IV are bonded either to a carbonyl group of the moieties II and III or to a carbon atom of the cyanuryl nucleus and the carbonyl groups of the moieties of the Formulµ II and III are bonded to an oxy group of moieties of the Formulµ II and IV. In examples phenyl p-hydroxybenzoate produced by the reaction of p-hydroxybenzoic acid with phenyl acetate, is reacted with cyanuric chloride to produce tris(p-carbophenoxy-phenyl) cyanurate which is reacted with further phenyl p-hydroxy benzoate and may then be chain extended with further p-oxybenzoyl units or cross linked with aromatic dihydroxy compounds or dicarboxylic acids or polyesters. In further examples various combinations of p-phenylene diacetate, or hydroquinone; p-hydroxybenzoic acid or phenyl p-hydroxybenzoate and diphenyl isophthalate are reacted together and reacted with cyanuric chloride.
Patent GB-1275897-A (GB)
Title: Fuel reservoir for a gas lighter
IPC: F23Q2/16
Filed: 1970-11-30
Abstract: 1275897 Fuel reservoir for gas lighters FLAMINAIRE MARCEL QUERCIA 30 Nov 1970 [2 Dec 1969] 56735/70 Heading F4F A fuel reservoir for a gas lighter in which the fuel is stored in cavity 1 in its liquid phase comprises an assembly constituted by a regulating device, with conical part 3a surrounded by porous washer 5 and co-operating orifice 4a, and an axial control member 7, which assembly is shielded by a tubular element 2 with at least one orifice 6 for the passage of fuel, and an outer absorbent sheath 8 or capillary tube defined by an annular channel, surrounding the tubular element at the level of orifice 6 and extending to the bottom of the cavity, the reservoir thus ensuring a uniform supply of fuel. The absorbent sheath 8 is preferably constituted by a porous material such as cotton, felt, open celled plastic foam, or porous ceramic, or by a material such as glass fibre or woven glass fibre through which fuel may flow through capillarity, the sheath thus acting as a filter. An impermeate liquid-tight bushing 9 may surround the sheath 8 leaving only an absorption surface S in contact with the fuel in the cavity 1, and in this case the sheath 8 may be omitted to leave an annular channel between bushing 9 and element 2 for the passage of fuel under capillarity.
Patent GB-1481693-A (GB)
Title: Granules of agrochemicals containing photodegradable plastics and having a controlled water-solubility
IPC: C05G3/00
Filed: 1973-12-07
Abstract: 1481693 Slow release pesticides KONINKLIJKE EMBALLAGE INDUSTRIE VAN LEER BV 2 Dec 1974 [7 Dec 1973] 56929/73 Heading A5E [Also in Division C1] Granules of agrochemical are coated or bound together with one or more plastics materials which is, are photodegradable and insoluble in water. The plastics material may be inherently photodegradable or made thus by the use of suitable additives. Agrochemicals are defined as fertilizers, herbicides, fungicides, nematocides, insecticides, soil conditioners, opacifying agents, antioxidants, and oxidation intensifiers.
Patent GB-1329985-A (GB)
Title: Process for making vesiculated polymer and coatings made therefrom
IPC: C08J9/28
Filed: 1970-12-01
Abstract: 1329985 Vesiculated polymers DULUX AUSTRALIA Ltd 1 Dec 1970 [1 Dec 1969] 57060/70 Headings C3C and C3R A vesiculated polymer is made by converting to a solid polymer a liquid medium in which is dispersed particles of another polymer insoluble in the liquid medium and swollen by a liquid swellant, the liquid swellant then being at least partially removed from the disperse polymer particles. The liquid medium may be a solution of a polymer in a solvent, the solvent being removed to effect solidification, or a polymerizable monomer. Particles of the other polymer, the diameters of which are smaller than the required vesicle size, may be dispersed in the liquid medium, liquid swellant for the polymer then being added to the dispersion until the size of the dispersed particles which imbibe the swellant increases to the required vesicle size. In a preferred method, the dispersion of polymer particles in the liquid medium is itself dispersed in a suspending liquid, suitably water or an aqueous liquid in which the liquid is insoluble. Particles of the polymer to be dispersed in the liquid medium may be pre-formed and dispersed in the liquid medium in the presence of a stabilizer. The particles may be formed by dispersion polymerization of monomer in an organic liquid in which the monomer is soluble and the resulting polymer is insoluble, the liquid containing a stabilizer for the polymer particles. Examples I, II, III and V illustrate the preparation of vesiculated granules of poly- (styrene/divinyl benzene) by an emulsification process using an aqueous swellant and suspending liquid. Examples XV to XVII are modifications of the method of Example V. Example IV is similar but the vesicles comprise a proportion of pigment particles. Examples VI to X describe respectively the preparation of vesiculated granules of (i) poly-(methyl methacrylate/ divinyl benzene), (ii) poly-(styrene/divinyl benzene), (iii) cross-linked polyester granules, (iv) urea formaldehyde polymer, (v) casein/formaldehyde polymer. Examples XI and XII relate to the preparation respectively of (i) matt aqueous latex paints, and (ii) non-aqueous paints, comprising the vesiculated granules of the invention. Example XIII illustrates the preparation of a vesiculated polystyrene moulding, and Example XIV that of a vesiculated polymer coating film as a substrate. Examples XV and XVI are modifications of Example V.
Patent GB-1366634-A (GB)
Title: Method and apparatus for cleaning glass plates
IPC: C03C23/00
Filed: 1971-11-19
Abstract: 1366634 Cleaning glass plates AGFAGEVAERT 19 Nov 1971 [1 Dec 1970] 57061/70 Heading A4F An apparatus for cleaning glass plates 14 Figs.1,2 comprises driven rollers 15 for transporting the plates horizontally, a cleaning section 11, a rinsing section 12 and a suction drying section 13. Each of the rollers 15 is arranged so as to support the plates near the edges only Fig. 3 (not shown). In the cleaning section the plates are sprayed with cleaning liquid by sprays 20 and rubbed by rollers 26, 27 having a coating of synthetic hair or fibre and driven at a high speed. To maintain a sufficient driving force on the glass plates in the cleaning section 11, the rim portions 21 of the rollers which engage the plates near the edges are rubber coated, and two pressure rollers 23, 24 rest under their own weight on the plates and are arranged to contact the plates near their edges only Fig.3 (not shown). The suction drying section comprises suction heads 35, 36, each having a suction slot spaced from the corresponding plate surface by means of rollers 44 Fig. 4 (not shown) engaging the sheets near their edges. Lower suction head 36 rests on adjustable columns 42, 43 while the upper suction head rests on the glass plate, a tension spring 32 being provided to decrease the force with which it rests on the plate. In a second glass plate cleaning apparatus Fig. 5 the plate is sprayed with washing liquid from a chamber 53 through elongate slot 58, and the dried by suction applied through an adjacent elongate slot 59 and chamber 56.
Patent GB-1189369-A (GB)
Title: Improvements relating to Connectors for Electric Wires
Inventor: THORSMAN OSWALD WILLY
IPC: H01R4/22
Filed: 1967-12-22
Abstract: 1,189,369. Electrical connectors. O. W. THORSMAN. 22 Dec., 1967, No. 58424/67. Heading H2E. A connector for electric wires comprises an insulating sleeve 1 closed at one end and containing a conically tapering coil spring, which may be of square section wire, with its narrowest turn fully or substantially fully closed, the end of the coil projecting tangentially or diametrically outwards into one of a number of internal recesses in the sleeve. The recesses may be grooves which taper in depth from the bottom 3 of the sleeve to the collar 7, shaped to co-operate with the wide end of the spring. The portion 5 of the sleeve may be provided with external projecting wings 8, disposed diametrically, while the portion 4 is provided with external longitudinal grooves. The taper of the spring may be interrupted by a cylindrical portion at the centre.
Patent GB-1197389-A (GB)
Title: Heterocyclic Dithiocarboxylic Acids
IPC: C07D295/21
Filed: 1968-12-09
Abstract: 1,197,389. Medicines; enzyme inhibitors. ASTRA A.B. 9 Dec., 1968, No. 58491/68. Heading A5B. [Also in Division C2] Pharmaceutical preparations which have particular siginificance in the inhibition of the enzyme dopamine-#-hydroxylase contain as active ingredient compounds I (including hysdrates thereof) wherein n is 2 or 3, R<SP>1</SP> is a C 1-6  saturated or unsaturated aliphatic hydrocarbon group, R<SP>3</SP> and R<SP>4</SP> signify H or Me, and R<SP>2</SP> is H, a compatible cation or a group II. Administration is orally, rectally or by injection; the usual carriers may be present.
Patent GB-1311549-A (GB)
Title: Portable sewing machine assemblies
IPC: D05B77/00
Filed: 1970-12-16
Abstract: 1311549 Sewing machines HUSQVARNA VAPENFABRIKS AB 16 Dec 1970 [16 Dec 1969] 59788/70 Heading D1G A portable sewing machine has auxiliary parts such as an accessory tray 6, an electric speed controller 10 and a work support table 14 arranged to be stowed against and/or between the parts of the machine within a case 18. The tray 6 fits between the free arm 5 and the base 4 and has a wall 7 at an obtuse angle to its back wall which abuts a corresponding wall 8 of the machine when in its correct orientation. The controller 10 has a recess 21 for a flex and fits between the top arm 3 and the free arm 5 against the pillar 8. The table 14 has an edge (15) (Fig. 2, not shown) which engages slidably a corresponding edge (16) of the pillar 8 when stowed to hold the table against the rear faces of the arms 3 and 5 with the table apron 22 abutting the ends of the arms 3 and 5. The case 18 has an opening 19 through which the foldable machine handle 2 may project and an open bottom with internal edges which mate with the edges of the base 4.
Patent GB-1416780-A (GB)
Title: Golf tee
IPC: A63B69/36
Filed: 1973-12-28
Abstract: 1416780 Golf tee areas MONSANTO CO 28 Dec 1973 [29 Dec 1972] 60085/73 Heading A6D A golf tee assembly which is mounted on a subsurface 10 consists of a frame 20 defining the golf tee area, a synthetic foamed sheet 18 positioned over the subsurface 10 and a synthetic fabric secured to the frame 20 and covering the golf tee area and the synthetic foamed sheet 18, the synthetic fabric comprising a pile carpet 30 of knitted construction having a total yarn denier of from 3000 to 10000, a tuft density of from 24 to 64 tufts per square inch and a pile height of from “ to ¥ inch. As described the soil 10 is levelled and prepared within an inner wooden frame 11 secured in the soil by rods 14. A polyethylene sheet 15 which acts as a moisture barrier is then laid over the opening defined by frame 11 and is secured thereto by tacks 16. A foamed polyurethane sheet 18 is then placed within the frame 11. The assembly is then covered by a nylon pile carpet 30 of knitted construction which is secured to the frame 20. The frame 20 consists of angle shaped aluminium bars 21 fitted together to form a rectangle slightly larger than the inner frame 11. Each of the aluminium bars 21 is flanked with wooden slats 22, 23 which are secured thereon by screws 24 passing through openings 25 in the bars 21. The exterior wooden slats 22 are provided with downwardly pointed securing pins 27 which retain the carpet 30 on the frame 20.
Patent GB-1326558-A (GB)
Title: Method and apparatus for removing impurities from a textiles machine room
IPC: F24F8/10
Filed: 1970-12-21
Abstract: 1326558 Ventilating textile machine rooms LUWA AG 21 Dec 1970 [31 Dec 1969] 60613/70 Heading F4V [Also in Division Bl] An air cleaning system for a textile machine room 10 comprises air return and supply ducts 12, 14, a first separator 16 which divides the room air stream into a partially filtered main stream and a coarse impurity laden secondary stream, a second separator 26 for cleaning the secondary stream, a final air cleaner 22 and means for supplying the undivided or main stream with a volume of air equal to that of the secondary stream. The replenishing air stream may be fed from the atmosphere or from the separator 26. The temperature and/or humidity of the air flow may be regulated downstream of the cleaner 22, which is a dry filter or a wet scrubber.
Patent GB-1341829-A (GB)
Title: System for driving a tape cassette
IPC: G11B23/087
Filed: 1970-12-22
Abstract: 1341829 Cassette recorder MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 Dec 1970 [23 Dec 1969 4 March 1970 18 June 1970] 60967/70 Heading G5R In a tape cassette recorder, the cassette ineludes a pair of tape reels 2, 3 each having a flange 2<SP>1</SP>, 3<SP>1</SP> or both flanges extending through a side wall A of cassette case 1 where they can be engaged by drive wheels in the recorder. On insertion in the recorder erase and record/ playback heads 23, 22 enter aperture 8 in side B of the case and are held in contact with the tape 4 by head pad 38, capstan 24 engages the tape at pinch roller 7 and a spring roller 40 enters a V- shaped notch 10 in the cassette side A to move a brake roller 13 out of contact with reel flanges 2<SP>1</SP>, 3<SP>1</SP>. Belts 25, 26 transmit drive from motor 27 to capstan 24 and also to the shafts 18, 19 which can be selectively coupled via idler wheels 20, 21 to flanges 2<SP>1</SP> or 3<SP>1</SP> for forward drive or rewind. The reel flanges can extend through opposite or both long sides of the cassette and can overlap in the cassette, the cassette can be arranged to operate with twin capstan or rotary head recorders. In addition a brake roller can engage both reel flanges or can be moved into engagement with the flange of the non-driven reel.
Patent GB-1256160-A (GB)
Title: Capacitor bleed circuit
IPC: H02M9/00
Filed: 1969-12-30
Abstract: 1,256,160. Capacitor circuits using semiconductors. HUGHES AIRCRAFT CO. 30 Dec., 1969 [8 Jan., 1969], No. 63312/69. Heading H3T. [Also in Division H2] In a welding circuit having a storage capacitor 42 there are provided means to leak the charge on the capacitor when charging has ceased and means responsive to the leakage having occurred for a predetermined time to provide a bleed path for discharging the capacitor. The capacitor 42 is charged from a half or full wave rectified supply 12, 16, 18 at a rate determined by a thyristor 24 (which is controlled by the capacitor voltage) over a circuit which includes a diode 28. The volt drop in this diode is stored on a capacitor 58 and biases off a Darlington pair of transistors 44, 46. Normally, the capacitor 42 is discharged into a pulse transformer 30 to energize welding electrodes 36, 38, by closure of a switch 32. However, if the supply is interrupted or reduced at 24 for, e.g. three half cycles, the charge on 42 begins to transfer to 58 via resistor 50, so reversing the bias on the transistors causing them to conduct to discharge 42 via resistor 52. In Fig. 2 (not shown) an additional transistor is in series with 46 so as to share the capacitor 42 voltage between them.