baber/WOPTO huggingface dataset:
Patent GB-1353287-A (GB)
Title: Spinning or twisting apparatus
IPC: D01H1/00
Filed: 1972-09-29
Abstract: 1353287 Spinning and twisting machines; counting rotations HAMEL PROJEKTIERUNG-UND VERWALTUNGS AG 29 Sept 1972 [7 Oct 1971] 44975/72 Headings D1D and D1F A spinning or twisting apparatus comprising a thread delivery bobbin 15 and a thread winding bobbin 11 with positively coupled drives, one of which i.e. bobbin 15 serves to impart twist whereby between the bobbins a spinning or twisting section 17 is provided is characterised in that the non-twist imparting bobbin 11 is controlled via a delaying device by means of a counting device 22 recording the rotations of the twist imparting bobbin 15 such that the bobbin 11 does not start to rotate until the bobbin 15 has made such a number of rotations that the length of thread 16 in the section 17 has the desired twist. The requisite number of rotations is set in the counting device 22 and on reaching this number a clutch 14 is engaged to connect the shaft 12, driving the bobbin 11, to its driving shaft 13. A return coupling 24 may be provided which resets the counting device to zero on operation of the clutch 14. The counting device may receive impulses from the spindle of the bobbin 15 or its drive 19 e.g. via a permanent magnet 20 and a receiving head 21. In the event of variable length between the bobbin 15 and the bobbin 11, a converter may .be attached to the counting device 22 to correlate the required twist level with the recorded rotations of the spindle. The spinning or twisting machine may be a ring twisting, up-twisting or down-twisting machine.
Patent GB-1005770-A (GB)
Title: Improvements in or relating to electroluminescent cells
IPC: H05B33/20
Filed: 1961-12-15
Abstract: <PICT:1005770/C4-C5/1> A process for forming an electroluminescent cell comprises providing a conductive substrate 12 on a glassy layer 10, applying a layer 14 of a mixture of electroluminescent phosphor and a glass and/or ceramic binder material to the substrate, preheating the combination to a point below the temperature required to fuse the binder material and below the softening point of the substrate but at or above the annealing temperature of the substrate, and applying sufficient local heat to the phosphor binder material layer 14 by means of electrical or electro-magnetic energy to raise the temperature of the layer to the temperature required to fuse the binder material.  The local heat can be applied by placing the substrate 12 and layer 14 in a R.F. field, the substrate 12 being the susceptor, or by placing them in the field of an induction furnace, or by applying electrical power to the substrate 12 to dissipate heat therefrom.  The layer 10 can be of soda-lime glass, the conductive substrate 12 can comprise about 97% SnO2 and 3% Sb2O3 as described in Specification 639,561, and the embedding material of the layer 14 can be zinc-borosilicate glass frit.  The conductive substrate 12 can also be of metal.
Patent GB-1090020-A (GB)
Title: Antibacterial compositions
IPC: A01N31/16
Filed: 1966-10-10
Abstract: An antibacterial composition comprises (1) a diphenyl ether having the formula <FORM:1090020/A5-A6/1> wherein X is halogen and X1 is H or halogen, and (2) at least one compound selected from (i) polyhalogenated salicylanilides and (ii) polyhalogenated carbanilides.  Preferred components are (1) 4, 2\sv, 4\sv-trichloro-2-hydroxy diphenyl ether, 4,4\sv-dichloro-2-hydroxy diphenyl ether; (2) (i)i 3,5-dibromosalicylanilide, 3,5,4\sv-tribromosalicyl-anilide; (2) (ii) 3,4,4\sv-trichlorocarbanilide.  The compositions find application in detergent compositions wherein the surface active agent may be an anionic, nonionic, cationic or amphoteric detergent or a soap.
Patent GB-1519676-A (GB)
Title: Ultrafiltration using enzyme-coupled membranes
IPC: C12N11/00
Filed: 1976-11-02
Abstract: 1519676 Enzyme-coupled ultrafiltration membranes H P GREGOR 2 Nov 1976 [7 Nov 1975] 45422/76 Heading C3H An enzyme-coupled ultrafiltration membrane is prepared by forcing a solution or suspension of an enzyme under a pressure equivalent to at least 10 psig. through an activated porous ultrafiltration membrane that carries chemical functional groups that will react with the enzyme to couple the enzyme to the membrane. Such a membrane finds use in effecting enzymatic reactions by forcing a substrate solution through the enzyme-coupled membrane under a pressure of at least 5 psig. Examples describe the implantation of (1) horse liver alcohol dehydrogenase, (2) jack bean urease, (3) glucose oxidase, (4) penicillin acylase (5) glucose isomerase to effect a variety of commercially important reactions.
Patent GB-1192814-A (GB)
Title: Improvements in Semi-Conductor Devices
Inventor: SPICAR ERICH GUSTAV
IPC: H01L29/36
Filed: 1967-10-06
Abstract: 1,192,814. Semi-conductor device. ALLM€NNA SVENSKA ELEKTRISKA A.B. 6 Oct., 1967 [12 Oct., 1966], No. 45797/67. Heading H1K. A thyristor has a body comprising two emitter layers 1 and 4 of N and P-type respectively with base layers 2 and 3 of P and N-type respectively between them, a main anode electrode 5 being connected to emitter 4 and a control electrode 9 being connected to base layer 2. Emitter layer 1 has auxiliary parts 12, 13 and 14, a main cathode electrode 7 being connected to the main part 1 and smaller auxiliary cathode electrodes 15, 16 and 17 being connected to the auxiliary parts 12, 13 and 14. These auxiliary cathodes are electrically connected to each other and to the main cathode by impedance elements 18, 19 and 20 where the resistance of 18 is greater than that of 19 and the resistance of 19 is greater than that of 20. In each case the resistance of the impedance element connected between a pair of electrodes is smaller than the resistance of the base layer between those electrodes. The impedance elements may be either of resistive or inductive character and may consist of metal layers deposited on the semi-conductor surface by means of vacuum evaporation or metal bands soldered to the emitter layers. The distances between any two successive cathodes is approximately the same as the distance between the auxiliary cathode 17 and the main cathode 7. Ignition of the device takes place at the control electrode 9 and spreads rapidly over the auxiliary cathodes to the main cathode. The base layer to which the control electrode is attached may be provided with further bias electrodes at its edge to ensure that self-ignition, if it occurs, will take place at the control electrode. The cathodes may alternatively be in the form of concentric rings.
Patent GB-1205594-A (GB)
Title: Distillate fuel oil compositions
IPC: C10L1/16
Filed: 1967-10-06
Abstract: 1,205,594. Hydrogenating copolymers. PHILLIPS PETROLEUM CO. 6 Oct., 1967 [21 Nov., 1966], No. 45836/67. Heading C3P. [Also in Division C5] A mixture of butadiene, styrene, tetrahydrofuran (as a randomizing agent) and secondary butyllithium in cyclohexane is polymerized for 2 hours at 122 F. The polymer solution formed is hydrogenated, to remove acyclic unsaturation whilst retaining aromatic unsaturation, by contacting with hydrogen at 400 psig for 2 hours at 350 F. using a catalyst comprising nickel octoate solution and triethylaluminium. Block copolymers may be obtained by omitting the randomizing agent.
Patent GB-1273043-A (GB)
Title: Vibratory conveyor for discharging loose material
IPC: B65G27/30
Filed: 1969-09-17
Abstract: 1,273,043. Discharging material from hoppers. KLOCKNER-HUMBOLDT-DEUTZ A.G. 17 Sept., 1969 [17 Sept., 1968], No. 45873/69. Heading B8S. Material from a hopper 1 is discharged therefrom by feed hopper 3 resiliently supported at 5 by the hopper 1 and carrying by means of girders 7 and resilient members 8 a trough 4. Hopper 3 and trough 4 together form a counterbalanced vibrating conveyer to discharge the material from the hopper 1.
Patent GB-1139459-A (GB)
Title: Apparatus for spinning artificial filaments
Inventor: DICKSON FREDERICK STOEVER
IPC: D01D4/02
Filed: 1967-10-09
Abstract: 1,139,459. Apparatus for spinning filaments. E. I. DU PONT DE NEMOURS & CO. 9 Oct., 1967 [10 Oct., 1966], No. 46004/67. Heading B5B. A spinning assembly for producing artificial filaments comprises, in combination with a spinning block housing an aligned array of closely spaced spinnerets and carrying equipment for blanketing all of the spinnerets with an inert gas, an enclosure assembly characterized by a pair of elongated flaps and means mounting the flaps on opposite sides of the array of spinnerets for swinging movement toward and away from a closed position adjacent to the spinnerets, the flaps having spaced longitudinal edges when in the closed position. In one embodiment (Figs. 1 and 2) the enclosure assembly 28 comprises a pair of elongated flaps, a back flap 48 and a front flap 50, the flaps having streamlined inner edges and being mounted on opposite sides of the spinneret array by hinges 52 and 54 respectively. Front flap 50 has a series of fingers 56 shaped and arranged so that when the flaps are in position four rectangular openings 58 (Fig. 2) are defined by the spaced longitudinal edges of the flaps and by the fingers, the filaments leaving the enclosure through these restrictive openings. The streamlined shape and angular disposition of the flaps around each opening are such as to give a Venturi effect in the direction of the exiting inert gas as shown by the arrows in Fig. 1. In this connection the upper surface of the flap 50 is substantially parallel to the faces of the spinnerets 18 and the operable length of the flap 48 is angularly disposed with respect to and terminates at a lower level than flap 50. Steam, the preferred inert gas, is supplied by a pipe 44 to plenums 36 and 38 and then through a passage 40 and over a weir 42 to be directed upwards against the faces of the spinnerets. The supply rate is such that the steam passes through the openings 58 with sufficient velocity to prevent stray air currents from coming upward toward the spinneret. The fingers 56 function to prevent cross-currents between adjacent spinnerets. The pack assembly may be changed by releasing the support pin 60 allowing the flap 48 to fall into a vertical position, when flap 50, which is supported by flap 48, can be moved through 180 degrees from its operating position. An example describes the formation of filaments by melt-spinning nylon 66.
Patent GB-1368798-A (GB)
Title: Surface coverings of flammable boards
IPC: E04B1/94
Filed: 1972-10-04
Abstract: 1368798 Coated flammable board CELOTEX Ltd 4 Oct 1972 [4 Oct 1971] 46150/71 Heading B2E A flammable backboard is provided on its surface with an intumescent adhesive and a surface covering comprising individual fibres stuck to the backboard by the intumescent adhesive. The surface covering may be flock, preferably an acrylic fibre, which may be electrostatically applied. The board may be wood fibre insulation board. The flock and the adhesive may be coloured. The board may be used as a notice board.
Patent GB-1077720-A (GB)
Title: Improvements in or relating to valves for pressurised dispensing containers
Inventor: WATTS ROBERT CEDRIC
IPC: B65D83/14
Filed: 1963-11-22
Abstract: 1,077,720. Delivering measured quantities of liquid. NEOTECHNIC ENGINEERING Ltd. Feb. 16, 1965 [Nov. 22, 1963], No. 46162/63. Heading B8N. [Also in Division F1] In a pressurized dispensing container valve for dispensing measured quantities of powder, the valve stem biasing spring 16 is spaced from the stem and apertures 15 are provided in the spring seating washer 14 for the passage of powder from the measuring chamber 1 above the resilient sealing disc 18. The disc 18 co-operates with a groove 19 in the valve stem. The stem flange 13 may be of enlarged diameter and be provided with the apertures. The spring seating washer (20), Fig. 5 (not shown), may be a sheet metal stamping provided with a pair of apertures (21).
Patent GB-1123957-A (GB)
Title: Method of preparing fuel cell catalysts
IPC: B01J23/46
Filed: 1966-10-17
Abstract: A fuel cell electrode is prepared by reducing a Group VIII noble metal (i.e. Ru, Rh, Pd, Os, Ir, Pt) compound such as chloroplatinic acid and/or rhodium chloride (or corresponding Br or I derivatives) in an alcoholic solvent, e.g. methanol, ethanol, propanol or butanol, with a di- or tri-substituted silane containing a Si-H group in the presence of an electrically conductive filler such as carbon e.g. graphite to coat the filler with reduced noble metal such as Pt and/or Rh having a crystallite size averaging between 20 and 35<\>rA. It is stated that known alkali metal borohydride e.g. NaBH4 reduction gives a crystallite size exceeding 65<\>rA.  A suitable substituted silane is dimethyl-, di- or triethyl-, triisopropyl-, tributyl-, di- or triphenyl-, ditolyl-, tribenzyl- or triethoxysilane. A binder-waterproofing agent, e.g. P.T. F.E., polychlorotrifluoroethylene or polyethylene in aqueous emulsion, is next added to the coated filler to form a spreadable paste which is coated on a substrate, e.g. glass or preferably a screen or grid of stainless steel, Ta, Ni or asbestos paper, to form an electrode material.
Patent GB-464723-A (GB)
IPC: G03C7/14
Abstract: 464,723. Colour photography. LASSUS ST. GENIES, A. H. J. DE. June 12, 1936, No. 16490. Convention date, June 26, 1935. [Classes 97 (i) and 98 (ii)] Apparatus for photographing on lenticular films or for copying by projection or projecting on to a screen from such films, comprises a principal optical system having a diaphragm, and an additional system immediately behind the outer surface of the principal system which faces the film, the function of the additional system being to modify the value of the angle of the cone of rays based on the diaphragm and having its apex in the emulsion of the film. The Figure shows a view-taking arrangement comprising a principal objective O and an additional objective T. The lens O alone would produce an image in the plane F. # represents the image of the diaphragm as seen from the plane F, this image subtending an angle # which determines the useful aperture of the lens D. If the lens T is convergent, the image formed by the system T, 0 lies in the plane F<1> in which the film is placed, and the image of the diaphragm lies at # and subtends an angle Q, greater than #, at the image plane. If the lens T is divergent, the image plane is moved away from the lens and the angle of the cone of rays is reduced. A further lens B may be placed close to the film to displace the image #<1> without varying the angle #.
Patent GB-1170917-A (GB)
Title: Oscillatory Circuits for Electro-Acoustic Converters.
IPC: B06B1/02
Filed: 1968-10-01
Abstract: 1,170,917. Transistor oscillating circuits. BRANSON INSTRUMENTS Inc. 1 Oct., 1968 [16 Oct., 1967], No. 46577/68. Heading H3T. In an oscillatory arrangement comprising, an electro-acoustic converter and a feedback controlled circuit arranged to drive the converter substantially at the natural mechanical parallel resonant frequency of the converter, means are coupled in circuit with the converter to increase the loop gain of the oscillatory arrangement during its start-up period. During this period the impedance of the converter is low (Fig. 3, not shown), and may not provide in itself sufficient feedback to produce oscillation. In an embodiment, comprising the arrangement shown in Fig. 10 of Specification 1,128,560 a resistor 60 is connected in series with the electro-acoustic converter 14, being shunted by relay contacts 61; the relay 62 is operated from the power supply over rectifier network 63 and a time-delay network comprising resistor 64 and capacitor 65. A time delay relay may alternatively be used, or the relay may be replaced by a silicon controlled rectifier or switching transistor. The resistor 60 may be provided with taps and a switching device provided to remove it from circuit gradually. Alternatively, the resistor 60 may have a negative coefficient of resistivity its value decreasing with current or temperature, in which case the relay is omitted. In a further modification, the relay is operated in accordance with the voltage developed across the electroacoustic converter.
Patent GB-1521971-A (GB)
Title: Phase locked oscillators
IPC: H03L7/07
Filed: 1974-10-29
Abstract: 1521971 Automatic frequency control STANDARD TELEPHONES & CABLES Ltd 21 Oct 1975 [29 Oct 1974] 46744/74 Heading H3A An oscillator arrangement, e.g. clock oscillators in a telephone exchange, includes: an array of oscillators, e.g. crystal oscillators 01, 02, 03 all tuned to the same predetermined frequency; meand PC1,A1 PC2,A2 PC3,A3 for phase locking each oscillator to the next, the last oscillator being locked to the first; detection means Q1, Q2, Q3, one associated with each oscillator, for detecting an out of lock condition between pairs of oscillators; and means, e.g. AND gates G1, G2, G3 for identifying a malfunctioning oscillator and preventing it from changing the frequencies of the other oscillators. If for example oscillator 02 goes too far off frequency, then a large correction signal is produced from phase comparators PC2, PC3. This large signal is detected by detectors Q2, Q3 which then produce an output signal from AND gate G3 to cause oscillator 03 to adopt a frequency near the centre of its range, regardless of the signal from phase comparator PC3.
Patent GB-1089410-A (GB)
Title: Glass compositions and capacitors employing the compositions
IPC: H01B3/08
Filed: 1965-11-04
Abstract: A glass consists essentially, in per cent by weight, of: PbO, 30-50; SiO2, 23-36; B2O3, 4-13; K2O, 3.5-6.5; Na2O, 2-5; TiO2, 2-6; ZnO, 1-6; BaO, 2-10; Al2O3, 0-5; Li2O, 0-5; V2O5, 0-3; As2O3, 0-1; Co2O3, 0-0.1.  If Co2O3 is present, the glass is blue. The glass may be formed into plates or rods or coated on sheets, e.g. of metal, as thin films. Silver electrodes may be painted on to discs of he glass. Sheets, e.g. of Al, may be dipped into a slip of fine particles of the glass in a volatile liquid vehicle, e.g. alcohol, and fired at 600 DEG  C. A second coating may then be applied.  The slip is formed by pouring the molten glass into <PICT:1089410/C1/1> water or air to form a frit, which is then ball-milled in the vehicle.  A capacitor 10 may be constructed from two core assemblies 11, 12, formed from Al plates 13, 14 with coatings 15, 16 of the glass.  A portion of each plate 13, 14 is left uncoated, and terminal tabs may be attached thereto, or, as shown, uncoated terminal tabs 17, 18 may be extending portions of the plates.  The two assemblies 11, 12 are then placed in a heated press and refired to weld the assemblies into a monolithic mass 10.  Larger numbers of core assemblies may similarly be stacked and welded and connected in parallel or series.  The unit 10 may then be encapsulated.  Metal leads 21, 22, e.g. of Dumet are welded to tabs 17, 18.  The assembly is then placed between preformed glass casing halves 23, 24.  Beads 25, 26 of glass of the above composition may be placed about the leads in contact with the casing halves.  The entire assembly is then heated under pressure so that the casings fuse together, to the glass coatings 15 and 16, and to the glass beads 25 and 26.  The operation may be performed in vacuo or in an inert gas atmosphere.  The glass casings may be of a glass of the above composition. The various glass components may be of glasses having compositions which differ but which fall into the above range.
Patent GB-965374-A (GB)
Title: Improved high temperature lubricants
Filed: 1962-12-13
Abstract: Compounds of the general formula: <FORM:0965374/C3/1> where each R is aryl or C1-10 (at least one R being the latter), each R1 is aryl, halogenoaryl, or C1-10 alkyl and n is 1-4, are prepared by reacting the appropriate chlorosilane with either a Grignard reagent containing the amino-aromatic function of the required product, or a lithium reagent prepared from lithium and a p-halogeno-N, N-dialkylaniline.  In either case tetrahydrofuran is a suitable solvent. In examples, many compounds of the above formula are prepared by one of these two methods.  Compounds of the above formula are added either alone or in admixture with an amine-containing antioxidant to high temperature organic lubricating oils, which may be a mixture of a silicone oil with a synthetic ester derived either from an alkanoic acid and a polyhydric alcohol or from a tertiary alkylcarbinol and a dicarboxylic acid. In Example 7, compounds of the above formula are added, either alone or together with phenyl -a - naphthylamine, to a 50-50 mixture of 1,2,2-trimethylolpropane triheptanoate and a silicone fluid composed of 70 mol. per cent of trimethylsilyl-end blocked dimethyl-siloxane and 30 mol per cent of phenylmethyl siloxane.ALSO:A high temperature lubricant comprises a high temperature organic lubricating fluid and from 0.1 to 5 wt. per cent based on the lubricating fluid of either a compound of the general formula <FORM:0965374/C4-C5/1> where each R is aryl or C1-10 alkyl (at least one R being the latter), each R1 is an aryl, halogenoaryl or C1-10 alkyl radical, and n is 1-4, or a mixture of 20-80 wt. per cent of such a compound with 80-20 wt. per cent of an aminecontaining antioxidant.  The silicon compounds are extensively exemplified, and amines which may be used in conjunction therewith include phenyl a - and b -naphthylamines, phenothiazines, 1-naphthylamine, N-ethyl-1-naphthylamine and dioctyl diphenylamine. Organic lubricating fluids included are esters of alkanoic acids and polyhydric alcohols (e.g. trimethylolpropane triheptanoate), and esters of tertiary alkylcarbinols and dicarboxylic acids (e.g. bis-(1-methylcyclohexylmethyl)sebacate), many other specific esters being mentioned, or a mixture of any of these esters with a silicone lubricating oil.
Patent GB-1517210-A (GB)
Title: Container for magnetic tape
IPC: G11B23/087
Filed: 1975-11-19
Abstract: 1517210 Tape container MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 Nov 1975 [20 Nov 1974 (2) 21 Nov 1974 (3) 9 Dec 1974 (2) 10 Dec 1974] 47649/75 Heading B8M [Also in Division G5R] A magnetic tape container 10 as described in the British Patent Specification 1,516,867 but the claims and the present Specification disclose a modified protective covering which completely encloses the tape T when not in use by biasing a lid 50 against a co-operating lid 50<SP>1</SP> whereby the lids engage with one another. When the cassette/container 10 is inserted into the container receiving chamber of a record/playback device a pin 57 of the device rocks the lid 50<SP>1</SP> to pivot both the lids away from one another by means of the gear tooth 53 of one co-operating with tooth 53<SP>1</SP> of the other to expose the tape T for its subsequent co-operation with the transducing assembly of the device. The container includes one or more breakable tabs 70a, 70b which engage with contacts of microswitches 80, 90 of the device to actuate the same to transmit a signal to a bias oscillator circuit X and an equalizer circuit Y of the device to determine the mode of operation of the equalizer/ bias oscillating circuits. The lids 50, 50<SP>1</SP> may be biased by a common spring (60), Fig. 7-8 (not shown) or by two springs 56, 56<SP>1</SP>. An additional microswitch and a circuit switch are provided on the device when there are three tabs Fig. 21 (not shown).