baber/WOPTO huggingface dataset:
Patent GB-1406475-A (GB)
Title: Automatic telephone answering device
IPC: G11B31/00
Filed: 1972-11-06
Abstract: 1406475 Phonographic clocks PIONEER ELECTRONIC CORP 6 Nov 1972 [6 Nov 1971] 51176/72 Heading G3T [Also in Division H4] A speaking clock for use with a telephone answering machine (Heading H4K) comprises a faceted wheel Fig. 2 having pivotal plates 26 secured to its periphery such that only one is presented at a time to a viewing window. The plates each bear a written representation of a digit and the corresponding spoken word for the digit is recorded on a respective track 28 extending across a facet of the wheel. Separate wheels are provided for the hour and minutes indications Fig. 3, each wheel being driven at an appropriate rate by a clock mechanism. A magnetic head H5 scans the magnetic tracks 28 when the time is to be recorded on an answering tape in the machine. In an alternative Fig. 4, the wheels take the form of concentric annuli.
Patent GB-999199-A (GB)
Title: Improvements in or relating to polypropylene filamentary material
IPC: D06M13/292
Filed: 1963-12-31
Abstract: The surface properties of polypropylene filamentary material are modified by treating the filamentary material with an organic phosphate to cause the phosphate to adhere to the surface of the filamentary material.  The organic phosphate may have the formula R1.R2.R3.PO4 in which at least one of the R1, R2 and R3 radicals is an alkyl or alkylaryl group containing 8-18 carbon atoms and any such radical remaining is a hydrogen or alkali metal atom or a basic radical.  Suitable organic phosphates are mono- and dioctyl phosphates, mono- and di-decyl phosphates, mono- and di-lauryl phosphates, mono- and di-myristyl phosphates, mono- and di-cetyl phosphates, mono- and di-stearyl phosphates and mono- and di-octyl phenyl phosphates, and the sodium, potassium or other alkali salts thereof.  The organic phosphate may be applied to the filamentary material as a 0.1-5% by weight aqueous solution having a pH of 6-9 by immersion of spraying.  The treating solution may also contain one or more other surfactants and/or lubricants, e.g. anionic surface active agents such as alkyl sulphates and sulphonates, alkyl aryl sulphonates, alkyl succinates and alkyl-amide alkyl carboxylates and sulphonates, non-ionic and amphoteric surface active agents such as polyoxyethylene alkyl ethers, polyoxyethylene alkyl esters, polyoxyethylene alkyl aryl ethers, polyoxyethylene alkyl amines and fatty acid diethanol amides, mineral oil, vegetable oil, and glycerides of fatty acids.  Polypropylene filaments alone or in admixture with other synthetic or natural fibres may be treated.
Patent GB-1324226-A (GB)
Title: Fluid cooled lance
IPC: C21C5/46
Filed: 1971-11-05
Abstract: 1324226 Fluid cooled lances CONZINC RIOTINTO OF AUSTRALIA Ltd 5 Nov 1971 [19 Nov 1970] 51595/71 Heading F4B A fluid cooled lance comprises a central metal tubular member 10 which tapers at 11 to communicate with a nozzle 12, the nozzle being formed of a material which is resistant to corrosion or other damage by molten metal both materials at temperatures in excess of 600 C. The member 10 is cooled by a series of tubes 14 arranged to surround the central tubular member and to extend longitudinally thereof. The cooling liquid passes from an inlet manifold 18, via a ring header 16 to an outlet manifold 19. A refractory envelope 20 surrounds the central pipe 10 and nozzle 11.
Patent GB-1460653-A (GB)
Title: Process for the production of 5-nitro-1,4-naphthoquinone
IPC: C07C/
Filed: 1974-11-29
Abstract: 1460653 Nitronaphthoquinone BAYER AG 29 Nov 1974 [1 Dec 1973] 51792/74 Heading C2C The invention comprises a process for the production of 5-nitro-1,4-naphthoquinone which comprises reducing 8-nitro-1,4-naphoquinone- 1-oxime and/or 5-nitro-1,4-naphthoquinone-1- oxime in an aqueous and/or organic reaction medium in the presence of iron (II) ions and a hydrogen halide at a temperature in the range of from - 20 to 100 C., and oxidizing the 8- and/or 5-nitro-4-amino-1-naphthol formed, or the corresponding salt, optionally without intermediate isolation, at a temperature in the range of from - 10 to 100 C. to form the desired 5-nitro- 1,4-naphthoquinone.
Patent GB-1126035-A (GB)
Title: New hydrazonium salts, a process for their manufacture, and preparations containing them
IPC: C07D295/30
Filed: 1965-12-08
Abstract: 1,126,035. Hydrazonium salts. CIBA Ltd. 8 Dec., 1965 [18 Dec., 1964], No. 52066/65. Heading C2C. [Also in Division A5] The invention comprises hydrazonium salts of the formula in which R denotes a phenyl radical containing a hydroxy group and 1-3 halogen atoms, R 1 , R 2  and K 3  denote aliphatic radicals of up to 4 carbon atoms, of which two may form a 5- or 6- membered ring, optionally through a hetero atom, and X denotes an anion. The aliphatic radicals may be alkyl, alkenyl, alkinyl, halogenalkyl, halogenalkenyl or halogenalkinyl radicals. The salts are obtainable by reacting a hydrazone of the formula RCH :NN(R 1 )R 2  with a compound of the formula R 3 X, in which X denotes the residue of a strong acid. Examples are given in which 3,5-diiodo-4-hydroxybenzaldehyde-NN-dimethylhydrazone is reacted (a) with dimethyl sulphate, (b) with methyl iodide, (c) with allyl bromide and (d) with propargyl bromide. Other examples are given also in which (a) 3,5-diiodo-4-hydroxybenzaldehyde-N,N-pentamethylene-hydrazone is reacted with methyl iodide and (b) 3,5-dichloro-4- hydroxybenzaldehyde - N,N - dimethylhydrazone is reacted with dimethyl sulphate. Other products of the invention are listed. The products are useful as herbicides (see Division A5). 3,5 -Diiodo - 4 hydroxybenzaldehyde - N,N - dimethylhydrazone is prepared from 3,5-diiodo- 4-hydroxybenzaldehyde and N,N-dimethylhydrazine. The corresponding 3,5-dichloro compound is similarly obtainable. 3,5 - Diiodo - 4 - hydroxybenzaldehyde - N - methyl - N,N - pentamethylenehydrazone is obtained from 3,5-diiodo-4-hydroxybenzaldehyde and N-amino-piperidine. Reference has been directed by the Comptroller to Specification 1,019,120.
Patent GB-1374445-A (GB)
Title: Method and device for influencing biological phenomena
IPC: A61N1/44
Filed: 1971-11-10
Abstract: 1374445 Electrostatic separation J BLONDEEL and R DE NUTTE 10 Nov 1971 [15 Jan 1971] 52273/71 Heading B2J [Also in Division A5] A method of influencing bioligical phenomena in a space comprises establishing in said space an electric field between upper and lower electrodes 6, 1, such that electrode 6 is positive and electrode 1 is relatively negative earthed, and applying a modulation at 6 to 12 Hz to the electrode 1 with an amplitude such that the field between electrodes 1 and 6 is always in the same direction. The electrode 1 is a metal plate in the floor of an enclosure 2 having side walls 8 which may form part of electrode 1. Electrode 6 is suspended by insulator 7 from a third electrode 3 suspended by insulators 5 from the ceiling 4. Electrodes 3 and 6 are connected to the negative and positive poles respectively of a D.C. source and electrode 1 is connected to said negative pole via a resistor and the secondary of a transformer having a primary connected to an A.C. sinewave sawtoothwave or rectangular-wave source of 6 to 12 Hz, preferably 10.3 Hz. Said resistor is at least 10 and preferably 15, megohns and a resistance of at least 10,000 meghons, e.g. the air resistance, is provided between electrodes 1, 6. The lower surfaces of electrodes 3 and 6 and the upper surface of electrode 1 are planar, and the upper surface of electrode 6 has conical projections 10, e.g. of 5 mm. hight. A convective discharge occurs, without ozone formation, between cones 10 and electrode 3 providing a purifying and sterilising action on the air in area 15 between electrodes 3 and 6, floating solid and smelling particles being thereby removed. The air in enclosure 2 is thereby sterilised due to natural circulation of air through area 15. The ratio of the electric field strength in volts/mtr, in area 15 to the dielectric constant of the air therein is 7,000 to 50,000, and the ratio between the maximum field strength in volts/mtr in the region between electrodes 1 and 6 and the dielectric constant of the air in that region is 1,500 to 3,500, preferably 2,500. Electrodes 1 and 6 are 2 to 3 meters apart and electrodes 3 and 6 are 25 to 35 cms. apart. The concentration of charged particles, of about ten associated atoms carrying unit charge, maintained in the space is 400 to 500 ions/cc with an excess of negative over positive particles.
Patent GB-1118540-A (GB)
Title: Improvements in or relating to speed-controlled switching apparatus
IPC: B60T8/32
Filed: 1966-11-22
Abstract: 1,118,540. Semi-conductor switching circuits. KNORR-BREMSE G.m.b.H. 22 Nov., 1966 [7 Dec., 1965], No. 52331/66. Heading H3T. [Also in Divisions F2 and G1] A speed-responsive switching circuit for controlling the brakes of rail vehicles comprises an A.C. generator 1, driven by the vehicle, the output of which is rectified at 3 and fed via a voltage-reducing circuit comprising a Zener diode 4 and potentiometer 5, to a further Zener diode 10 which determines the threshold voltage of a switching circuit, a contact 6 of which is shunted across the Zener diode 4. As described, when the speed is sufficient for negative half-cycles passing rectifier 3 to break down Zener diodes 4 and 10, transistor 12 becomes conductive, energizing relay 17 and applying a high braking level. Contact 6 of relay 17 by-passes Zener diode 4 so that relay 17 remains energized until the speed has become considerably reduced, when transistor 12 becomes non-conductive, releasing relay 17 and applying a low braking level. Reference is made to a known circuit in which the Zener diode 10 is switched between two tapping on the potentiometer 5.
Patent GB-1205978-A (GB)
Title: Improvements in production of plastic printing plates
IPC: B41C3/06
Filed: 1967-11-20
Abstract: 1,205,978. Printing-surfaces. REICHHOLD CHEMICALS Inc. 20 Nov., 1967, No. 52587/67. Heading B6C. Apparatus suitable for moulding a flexible plastics printing plate comprises a base member 10 supporting a lower platen 12 adapted to receive on its flat surface 22 a matrix 16 having an image face, an upper platen 19, and pivotal means connecting the two platens, said means having two spaced pivot axes (56), (66), Fig. 2 (not shown), disposed parallel to an edge of the platen 12 and arranged so that the platen 19 can be moved first about the axis (56) to a position, Fig. 3 (not shown), of proximity to the platen 12 and then about the axis (66) to a position, Fig. 4 (not shown), parallel to the platen 12 and at a predetermined distance therefrom. A frame 14 is located around the platen 12 to clamp the matrix in position and provide in its closed position a dam for resin which is supplied by a gun 26, at least a portion of the resin being supplied along the rear marginal edge of the matrix. The frame 14 includes inner knife edges (28), Fig. 6 (not shown), and is closed by rod means 30 or by hydraulic or pneumatic means. Both platens may be heated and may carry a polytetrafluoroethylene coating and the lower platen is provided with a vacuum system to keep the matrix flat. The spacing between the platens in the closed position may be adjusted and measured. The two part closing action of the platens facilitates the discharge of air from the thermosetting resin before moulding owing to the squeezing action employed. A plate which is not subject to shrinkage may be moulded using a highly porous fibrous insert (74), Fig. 6 (not shown). Suitable materials for the plate are stated to be polyurethanes, epoxy resins, and silicone elastomers.
Patent GB-1469610-A (GB)
Title: Preparation of 3,6-dichloropicolinic acid
IPC: C07D213/803
Filed: 1975-12-23
Abstract: 1469610 3,6-Dichloropicolinic acid DOW CHEMICAL CO 23 Dec 1975 [27 Dec 1974 (2)] 52742/75 Heading C2C 3,6-Dichloropicolinic acid is prepared by (1) reacting 3,5,6 - trichloro - 4 - hydrazinopicolinic acid with an alkali metal hydroxide in a liquid reaction medium comprising water and/or C 1-4  alkanol and (2) acidifying the reaction mixture with a mineral acid. Preferably step (1) is carried out at reflux temperature, e.g. 60- 120 C., using an excess of the alkali metal hydroxide such as NaOH in water/ethanol. Step (2) is preferably effected with HCl. 3,5,6 - Trichloro - 4 - hydrazinopicolinic acid is obtained (a) from tetrachloropicolinic acid and hydrazine in an aqueous alkaline medium or (b) by acidic hydrolysis of 3,5,6-trichloro-4-hydrazinopicolinonitrile. Pesticidal and plant growth regulant compositions contain 3,6 - dichloropicolinic acid obtained as above.
Patent GB-1316362-A (GB)
Title: Aminoalky-acridan compounds and the preparation thereof
IPC: C07B61/00
Filed: 1970-11-06
Abstract: 1316362 Aminoalkyl acridan derivatives ROUSSEL UCLAF 28 May 1970 [28 May 1969] 52980/72 Divided out of 1316361 Heading C2C The invention comprises compounds of the formula wherein R 1  is a C 1  to C 4  alkyl group, R 2  is H or a C 1  to C 4  alkyl group and X and X<SP>1</SP> are each a H or halogen atom. They may be obtained by reducing a compound of the formula wherein Alk represents a C 1  to C 4  alkyl group. Specified reducing agents are LiAlH 4 , AIH 3 , diborane, an organo-aluminium hydride or an organo-aluminium. Examples are given for the preparation of the compounds. Compounds of Formula II may be obtained by reacting a compound of formula with an amine of formula wherein Hal is Cl, Br or I, in the presence of an alkali metal or an alkali metal alcoholate. Examples are given for the preparation of these compounds.
Patent GB-1199453-A (GB)
Title: Circuit Arrangements for Use with Discharge Tubes.
IPC: H05B41/04
Filed: 1967-11-22
Abstract: 1,199,453. Discharge lamp arrangements. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 22 Nov., 1967 [25 Nov., 1966], No. 53176/67. Heading H2H. A high pressure mercury vapour lamp 6 is started by the additional voltage of a winding 11 of an autotransformer 3, 11 which through Zener diodes 10, 12 on ignition fires thyristors 7, 8 to lower the voltage across the lamp. The charge across a capacitor 13 aids the re-ignition of the lamp each half cycle before ignition of the relevant thyristor. In another arrangement the thyristor 7 is replaced by a diode (20), Fig. 2 (not shown). An inductance 5 may be included in the circuit. A plurality of lamps in series or parallel may be employed and low pressure lamps with or without preheating electrodes connected for example to an additional winding on transformer 3, 11 may be substituted.
Patent GB-1399145-A (GB)
Title: Signs for advertising and display purposes
IPC: G09F13/04
Filed: 1972-11-20
Abstract: 1399145 Illuminated signs CLAUDGEN Ltd 19 Dec 1973 [20 Nov 1972] 53474/72 Heading G5C An illuminated box sign has a rigid frame formed from sections 1, 2, 3, 4 of which sections 1, 3 have a channel section 5, 6 with inturned edges 10 and 11 (Fig. 4) on which may run rollers or blocks 12 on each side of a transparent or translucent display panel 9 whereby the panel may be partially or wholly withdrawn from the frame, when end section 2 or 4 is removed, to permit cleaning. Stops 14 on sections 2 and 4 normally prevent complete withdrawal of the panel, but may be over-ridden. Display panels may be provided at front and rear of the frame, or the rear may be closed by an opaque panel. Lamps 20 are carried by casings 19 mounted on internal struts 18 traversing the frame.
Patent GB-549460-A (GB)
Abstract: 549,460. Electric boiling rings. GOLDSTAUB, H. H. May 20, 1941, No. 6455. [Class 39 (iii)] An electric boiling ring, which may be inclined to form a room heater, comprises a refractory disc with ribs A<SP>1</SP> to receive a heating coil A<SP>2</SP> supported in a short length of asbestos tube C cut from standard piping. Separate feet D are screwed to the ring C, and U-shaped lugs E are also attached to support the refractory disc. A cover plate G is attached to the lower ends of the lugs E, which may also be extended to form feet H.
Patent GB-1133465-A (GB)
Title: Improvements in or relating to ovens
IPC: F24C14/02
Filed: 1965-12-29
Abstract: 1,133,465. Heat cleaning ovens. C. W. FROMM. 29 Dec., 1965 [30 Dec., 1964], No. 55123/65. Heading F4W. A lagged cooking oven shell 4 is provided with apertures 16 and 24 in its top and bottom walls respectively, controllable infra-red gas burner units 18 and 26 being disposed outwardly of the shell and in the region of the apertures. The exposed face of each burner unit is in the form of a honeycomb structure formed from a large number of pyramid shapes (32, Fig. 4, not shown), the spaces between the pyramid shapes constituting burner passageways. During oven cleaning operations, a translucent glass plate 48, normally lying above aperture 24 when the oven is used for cooking, is removed and all the oven walls are subjected, in the presence of air entering through aperture 24, to intense radiation from the two burner units, the path of the radiation being diagrammatically illustrated by arrows referenced 40, 42. Such cleaning results in oven soil being degraded into ash and gaseous products, the latter being exposed to further intense heating from unit 18 upon entering aperture 16. In an alternative embodiment (Fig. 3, not shown), the oven shell is surrounded by an air passage (52) and the apertures in the shell are covered by translucent plates (54, 48), these being removable when cleaning operations are commenced.
Patent GB-1321115-A (GB)
Title: Continuous manufacture of polyesters
IPC: C08G63/78
Filed: 1970-11-20
Abstract: 1321115 Polymerisation apparatus BADISCHE ANILIN-& SODA-FABRIK AG 20 Nov 1970 [22 Nov 1969] 55205/70 Heading B1X [Also in Division C3]  Apparatus used in the production of linear polyester by a continuous process in which diglycol terephthalate and/or its precondensate are polycondensed, optionally in the presence of other polyester-forming components, at a temperature of 240-300C at reduced pressure, comprise a bundle of stationary, substantially vertical heated tubes 1 surrounded by heating jacket 2 containing heating medium 3 immediately above which is located at least one hold tank 4, which may be heated, connected to a vacuum at outlet 5, the major portion or all of the heat required to heat the reaction mixture and evaporate the volatile portions thereof being applied to the tubes. Liquid catching surfaces 6 may be provided between tank 4 and vacuum outlet 5. The heating jacket surrounding the bundle of tubes may be divided into two separate zones, the temperature of the heating medium in the upper zone being higher than that in the lower zone. Bottle necks may be provided in the tubes by squeezing them to provide slot-like depressions using a suitable die or by inserting orifice plates or capillaries.
Patent GB-1373526-A (GB)
Title: Drilling machine
IPC: B23B39/16
Filed: 1971-11-29
Abstract: 1373526 Multi-spindle drilling; setting devices KLOCKNER-HUMBOLDT-DEUTZ AG 29 Nov 1971 [30 Nov 1970] 55360/71 Headings B3C and B3B A multi-spindle drilling machine comprises tool holders 12, each of which is individually adjustable in a head 4, 2, perpendicular to the drilling axis, the adjusting means being connected to a numerical control unit 9. Tool holders 12 are adjustable in slots of members 11 Fig. 4, by electric motors 16 which drive spindles 15, and members 11 are adjusted by an electric motor 14 which drives spindles 13. Electrically operated clutches are provided so that each member 11 may be adjusted individually. In a modification, each tool holder 12 is carried by an arm 23, Figs. 5, 6, the arm being slidable in a pivotable member 21. In operation, member 21 is pivoted by an electric motor which drives a worm gear 30, and arm 23 is moved through member 21 by a worm gear 27 which rotates a shaft 26 having a pinion 25 which meshes with a rack 24 on arm 23.
Patent GB-1274324-A (GB)
Title: Improvements in or relating to beds or the like
Inventor: PEACE WALTER LESLIE
IPC: A61G7/005
Filed: 1969-11-13
Abstract: 1,274,324. Adjustable beds. MASTERPEACE PRODUCTS Ltd. April 19, 1971 [Nov. 13, 1969], No. 55538/69. Heading A4J. A bed frame 10, table-top, or the like is supported on a base structure 1.. 4 by pairs of arms 8, 9 pivotally connected to the frame 10 and the base structure and movable either in unison, to lift the frame 10 vertically as a parallelogram linkage, or independently, to tilt the frame 10. In the embodiment shown in the raised position, the arms 8, 9 are fixed to respective shafts 5, 6 journelled in the tops 7 of the corner posts 2; the arms are rigid with stop members 23 which engage the posts 2 or other members of the structure in the lowered position. A hydraulic jack 24, actuated by pedal 27, turns the shaft 6 by an arm 26 so that the arms 9 lift the right-hand end of the frame 10 (which may be the head or the foot), the arms carrying rollers 15 running in guide channels 17 on the frame. The rollers are mounted on a rod 11 carried by the arms 9, and a tube 12 is rotatable on the rod by a lever 20 to lower a catch 18 into engagement with the adjacent channel 17; when the frame 10 is in its lowered position the catch then engages over the left-hand end of the channel 17, and actuation of the arms 9 then causes the frame 10 to move to the right with them so that it rises bodily, maintaining a horizontal attitude, on the arms 8, 9 acting as a parallel linkage.
Patent GB-1283234-A (GB)
Title: Photographic direct-positive silver halide emulsions
Inventor: GILMAN PAUL BREWSTER JR
IPC: G03C1/28
Filed: 1969-11-13
Abstract: 1283234 Photographic direct-positive silver halide emulsions EASTMAN KODAK CO 13 Nov 1969 [15 Nov 1968] 55640/69 Heading G2C A direct-positive photographic silver halide emulsion is spectrally sensitized with a sensitizing methine or azacyanine dye (i.e. a dye which causes less than 80% loss in blue speed when added to a negative-type developing out gelatine silver chlorobromide emulsion containing 40 mole per cent chloride and 60 mole per cent bromide, at a concentration of 0À01-0À2 g dye per mole of silver halide, when the emulsion is exposed and developed for 3 minutes in (Registered Trade Mark) "Kodak" developer D-19 (composition given) at 20 C.) and a bipyridinium salt comprising two pyridinium nuclei joined by a linkage attached to a carbon atom of each nucleus. The methine dye may be a cyanine, merocyanine or hemicyanine dye. The bipyridinium salt preferably has one of the formulae:- wherein R 1  and R 2  are each alkyl, substituted alkyl, cycloalkyl, aralkyl or aryl; R 3  and R 4  are each H, or halogen, or an alkyl or alkoxy group having 1-4C; R 5  and R 6  are each H or 1-4C alkyl; R is vinylene or ethylene; X<SP>-</SP> is an anion; n is O or 1; and m is 2, 3 or 4. Many examples of sensitizing dyes are listed. The silver halide may be fogged with both a reduction fogging agent and a gold fogging agent, and the emulsion may contain a colour coupler. The bipyridinium salts are electron acceptors and with the dyes produce, by appropriate selections, many direct-positive emulsions having spectral sensitivity tailored to requirement. Specification 940152 is referred to.
Patent GB-1153810-A (GB)
Title: Video Recording Medium and Transport
IPC: G11B7/24
Filed: 1967-12-08
Abstract: 1,153,810. Optical record discs. GAUSS ELECTROPHYSICS Inc. 8 Dec., 1967 [3 April, 1967], No. 55917/67. Heading G5R. An intermittent opaque deposit forms a spiral optical recording track on a transparent disc 10 which contains a magnetic ring 14 to assist in holding the disc on a turntable (11, Figs. 1 and 4) of a radius not greater than the inner radius of the recording track. The record disc is covered with a protective transparent layer (15, Figs. 6 and 7) and a conductive transparent layer (17) to inhibit the formation of electrostatic charges.
Patent GB-1416155-A (GB)
Title: Briquetting of calcium chloride
IPC: B01D53/28
Filed: 1972-12-04
Abstract: 1416155 Calcium chloride composition DOW CHEMICAL CO 4 Dec 1972 55931/72 Heading C1A [Also in Divisions B1 and C3] Calcium chloride fines are mixed with solid polyethylene glycol of M.W. 1000 to 200,000 and moulded under elevated pressure to give briquettes of a desicant which contains 0À1 to 10% of polyethylene glycol.