baber/WOPTO huggingface dataset:
Patent GB-1403245-A (GB)
Title: Coating process
IPC: C23C2/22
Filed: 1972-10-23
Abstract: 1403245 Galvanizing wire or strip N V BEKAERTSA 23 Oct 1972 [21 Oct 1971] 48758/72 Heading C7F In a process for hot dipping continuous lengths of metal, e.g. steel wire or strip, with Zn, the formation of an oxide film forming on the coated substrate emerging from the bath is prevented by (1) covering the surface of the Zn bath where the coated substrate emerges with a layer of small, rounded refractory granules, inert to Zn, e.g. glass beads of 2.5 to 6 mm dia, (2) injecting a substantially non-oxidizing atmosphere into the granules e.g. CH 4 , C 3 H 8 , natural gas, Ar,N 2 ,C 4 H 10 , and (3) introducing a substance to the granules or the bath which reduces any Z n O formed, e.g. a small amount of Al in the bath, or the addition of a compound of the general formula R-(S) n -R<SP>1</SP> to the granules, where R and R<SP>1</SP> are aliphatic or aromatic groups, and R<SP>1</SP> may also be H. Examples of these compounds are mercaptaus, e.g. methyl mercaptan CH 3 SH, disulphides e.g. dimethyl disulphide, monosulphides, and polysulphides. Other suitable substances include (NH 4 ) 2 S, NH 4 Cl and' compounds of the general formula R<SP>1</SP> Cl. Prior to hotdipping, the material may be passed through a Pb bath, pickled in HCl, washed, passed through a flux of ZnCl 2 -NH 4 Cl and dried.
Patent GB-1565058-A (GB)
Title: Telecommunications exchange systems
IPC: H04Q3/00
Filed: 1976-11-26
Abstract: This circuit arrangement satisfies the requirement for a switching system to be designed in such a way that more switching network connections are available than the number corresponding to the product of the number of switching network parts and the number of connections per switching network part. The switching network (e.g. I.) with a reversed trunking scheme comprises a plurality of switching network parts (e.g. AI., BI., ... NI.) which all have the same number of outputs. All of the switching network outputs which in each case have correspondent switching network parameters are parallel-connected (via I.V1, I.V4, IV7) over all the switching network parts. Control sub-units are individually allocated to the switching network parts. A plurality of switching networks (I., II., III., IV.) are associated with one switching system. Their multiple lines (I.V1, I.V4, I.V7, II.V1, II.V4, II.V7, III.V1, III.V4, III.V7, IV.V1, IV.V4, IV.V7) are interconnected with the aid of multiple circuits (Wa, Wb, Wc, Wd, We, Wf) in such a way that each of the latter (e.g. Wa) always extends over one part only (e.g. I. and II.) of the plurality of switching networks. A staggering of the multiple connections is produced. <IMAGE>
Patent GB-1387320-A (GB)
Title: Detecting surface defects in moving metal sheet
IPC: G01N21/89
Filed: 1972-10-26
Abstract: 1387320 Detecting and classifying flaws in a moving sheet HOOGOVENS IJMUIDEN BV 26 Oct 1972 [27 Oct 1971] 49484/72 Heading G1A In a flaw detecting device for inspecting sheet metal for classifying and counting the flaws, one or more units, each unit comprising a source and a plurality of detectors (photo-diodes) are employed, the detectors being positioned to view separate areas (2 mm<SP>2</SP>) spaced across the metal sheet and the output signals being processed individually in parallel paths. Several different circuits are disclosed for detecting specks, lines perpendicular to the direction of travel of the sheet, lines parallel to the direction of travel, and stains:- Specks are detected by a circuit Fig. 5; for each detector 7 comprising an amplifier 8, high pass filter 9 a maximum value comparator 10 and a minimum value comparator 11 which will provide an output (a logical "L") if the resultant signal S 3 h is greater than a predetermined maximum value "Max. sp" or less than a predetermined minimum value "Min. sp". The comparator outputs from a number of adjacent detectors may be fed via an "OR" gate to a counter to give a measurement of the number of specks in a given area. Lines across the travel direction are detected by a circuit, Fig. 6, comprising a counter 12 which receives the amplified and high pass filtered outputs S 3 h of a number of adjacent detectors, simultaneously counts them and feeds the result to a comparator similar to above. Lines parallel to the travel direction are detected by a circuit Fig. 7 (not shown) similar to the "Specks circuit" Fig. 5 except that a low pass filter is employed and that the detector and source unit is vibrated in a direction perpendicular to the travel direction. Stains may be detected by a circuit Fig. 8 (not shown) comprising a counter being fed by a number of amplified low pass filtered outputs of a series of adjacent detectors. The counter's output is then fed to a comparator arrangement as before. All the different types of flaw detector circuit may be combined into a single circuit Fig. 9 (not shown).
Patent GB-1024928-A (GB)
Title: Television tuner
IPC: H03J5/10
Filed: 1964-12-07
Abstract: 1,024,928. Television tuners. RADIO CORPORATION OF AMERICA. Dec. 7, 1964 [Dec. 13, 1963], No. 49678/64. Heading H3Q. In a multichannel television tuner the rotor can be brought, by means of knob 48 attached to shaft 50 and gearing 52, 54 to any of a number of predetermined positions, determined by a detent plate 42 attached to the rotor shaft 22 and co-operating with a fixed leaf spring 46. In each position the tuner can be continuously adjusted to any of a limited number of channels, and this is effected by rotation of the whole tuner. Shaft 50 also carries a disc 56 supporting adjusting screw members 58, each corresponding to one position of the detent mechanism and having a head 62 formed as a gear. A second knob 48 attached to a sleeve 68, freely supported by shaft 50, upon depression against spring 76, brings idler gear 64 into engagement with that gear head 62 which has been brought into operative position by rotation of disc 56. Rotation of knob 48 will then effect rotation of the corresponding screw member 58 via gears 74, 64, 62, so causing lever arm 51 to rotate about pivots 60. Thereby movement of a second arm 38 produces rocking of the tuner 20 via ball pivot 41: a spring 36 maintains the system in engagement.
Patent GB-1068857-A (GB)
Title: Process for the production of non-woven fabrics
IPC: D04H1/64
Filed: 1964-12-07
Abstract: Coloured non-woven fabrics are produced by impregnating loose, fibrous webs with a solution or dispersion containing at least one bonding agent as well as at least one dyestuff which is dissolved or dispersed in the solvent or dispersing medium of the bonding agent and which has an affinity for the fibres being treated. The fibres may be of cotton, wool, viscose, cuprammonium cellulose, cellulose acetate regenerated proteins polyacrylonitrile, polyamides, polyurethanes, polyesters, polyolefines, polyvinylchloride, polyvinyl alcohol or polycarbonates.  The bonding agent may be a homopoymer, copolymer or graft copolymer of butadiene, isoprene, acrylic and methacrylic acid or esters thereof, polymers containing reactive groups (some specified) or mixtures thereof.  Suitable dyes are from the direct acid, 1:1 and 2:1 metal-complex, vat, reactive, disperse, basic and ingrain dyestuff series.  The dye/bonding liquors may be applied by padding, painting, dipping, spraying or foaming.  The fabric may subsequently be dried and heat treated at about 150 DEG C. Examples of producing a number of coloured non-woven fabrics are given.
Patent GB-1517239-A (GB)
Title: Apparatus for applying a coating to a submerged surface
IPC: B05C5/02
Filed: 1976-12-01
Abstract: 1517239 Apparatus for sub-aqueous coating COMMISSARIAT A L'ENERGIE ATOMIQUE and CENTRE NATIONAL POUR L'EXPLOITATION DES OCEANS 1 Dec 1976 [1 Dec 1975 26 Oct 1976] 50111/76 Heading B2L Apparatus for coating a surface, e.g. of a ship, submerged in water, comprises means for spreading coating material on said surface, means for exerting pressure upon the spreading means to urge it against said surface, means for continuously supplying coating material to the spreading means, and means to displace the spreading means so as to simultaneously force back water and apply the coating. The spreading means may comprise a body with continuous pores, bearing an impervious envelope having a brush-like surface; water is permitted to seep into said pores, thus equalising pressure each side of said envelope regardless of immersion depth. As shown porous body 30 has envelope 31 around it, with bristles 32 which sweep water from surface 13; coating material is metered through pipes 33 into central slot 35 and spread by movement of body 30 in direction 7; water enters at 36 to equalise pressure. Other forms of spreader are (1) a device with four pads mounted circumferentially and means to move to the next pad when the bristles of one become worn (2) a device with two rollers, each with a foam centre and impervious sheath; water is admitted axially of the rollers, and the coating material fed to the nip between the first roller and surface 13, and (3) a device of substantially W section where air is admitted into the first V and coating material into the second V, the trailing lip of the second V performing the spreading (Fig. 5, not shown). All the above spreaders are mounted on a wheeled trolley which is driven across the surface. and held thereto by a turbine which creates suction.
Patent GB-1140359-A (GB)
Title: Benzofuran derivatives
IPC: C07D307/79
Filed: 1966-02-28
Abstract: 1,140,359. Amino- and nitro-benzofurans. FMC CORP. 28 Feb., 1966 [1 March, 1965 (2)], No. 50304/67. Divided out of 1,140,358. Heading C2C. The invention comprises 2,3-dihydro-2,2- dimethyl - 7 - nitrobenzofuran and 2,3 - dihydro - 2,3 - dimethyl - 7 - aminobenzofuran. The compounds can be prepared by (a) heating o-nitrophenol with a methallyl halide in the presence of an acid acceptor to form 1-methallyloxy-2-nitrobenzene, (b) heating the latter compound at 150-200 C. to form an isomer which is 2-nitro-6-methallylphenol or 2-nitro- 6-isobutenylphenol, (c) cyclizing said isomer to 2,3 - dihydro - 2,2 - dimethyl - 7 - nitrobenzofuran by heating in the presence of an acidic catalyst, and (d) for the amino compound, reducing the 7-nitrobenzofuran. The 7-aminobenzofuran can also be obtained by (a) heating o-acetamidophenol with a methallyl halide in the presence of an acid acceptor to form 1- methallyloxy - 2 - acetamidobenzene, (b) rearranging the latter by heating at 150-200 C. to 6-acetamido-2-methallylphenol and (c) cyclising and hydrolysing this product to 2,3-dihydro - 2,2 - dimethyl - 7 - aminobenzofuran by heating with an acid and water.
Patent GB-1063656-A (GB)
Title: Duct-forming device for borehole assembly
IPC: E21B43/11
Filed: 1964-12-10
Abstract: 1,063,656. Wells &c. S. M. ZANDMER. Dec. 10, 1964 No. 50327/64. Heading E1F. A device for forming a duct in the wall of a borehole casing 12 (Fig. 2 not shown) comprises a bush 16 mounted in the wall, telescopic tubular members 40, 21 in the bush adapted to be forced outwardly into contact with the wall of the borehole, and plugs 50 in the member 40 dissolvable in a chosen acid to complete the duct and form a filter for oil passing from a formation into the interior of the casing. The ducts may be used for treatment of formations and several devices are mounted adjacent different formations in projections G on the casing, the projections acting as casing centralizers. When the casing and bushes are located in the borehole cement is directed to the outside of the casing by driving a cementing plug with acetic acid, the acid being separated from a displacing fluid by a further plug and sufficient acid being used to fill the casing over the depth of the formations. The pressure of the displacing fluid and acid is raised sufficient to project the members 40, 21 outwardly so that the wall of the borehole is engaged. After the cement has set the acid eats away magnesium plugs 53 and then the plugs 50 which are also magnesium to form the ducts. The cavity within the member 40 may be filled with glass balls to increase the filtering action.
Patent GB-1489336-A (GB)
Title: Fishing lures
IPC: A01K85/00
Filed: 1973-10-30
Abstract: 1489336 Bait dispensing fishing lure A J INGRAM 2 Oct 1974 [30 Oct 1973] 50385/73 Heading A1A A bait-dispensing fishing lure is formed as a fascimile of a fish, worm or other live bait and comprises a chamber which contains a water soluble or dispersible substance attractive to fish. The lure is apertured or of permeable material to allow bait discharge, and fixedly receives a hook. In one form the lure is a flexible plastics fascimile of a lug worm and comprises a hollow body 11 which contains the bait 27, and a tail 12 which fixedly receives the hook 23 and closes the open end of the body. A tail hook 24 may also be provided. The bait 27 may comprise a chemical tablet, fish oil, a halibut oil tablet or cotton wool impregnated with oil. The lure may be weighted for correct orientation and may have a key and slot to provide only one orientation for the snap fitting of the body and plug.
Patent GB-1502507-A (GB)
Title: Methods of manufacturing communication cable
IPC: H01B13/00
Filed: 1975-12-11
Abstract: 1502507 Telephone cables HENRICH KG MASCHINEN FUR DIE DRAHTINDUSTRIE 11 Dec 1975 [11 Dec 1974] 50862/75 Heading H1A A method of producing telephone cables comprising, e.g. quads, comprises performing any particular process step on each lead comprising the quad at the same time on the same machine, so that any process variations, e.g. in dielectric constant of insulant, or elongation of conductor due to stretching, affect all the leads at the same point along their length, which is said to reduce unwanted coupling with adjacent circuits. In Fig. 1, conductors 5-8 are drawn through dies in the same draw bench 9 by rollers 1-4 driven from a common source, and pulled through electrolyte baths 11, 12, by means of which an electric current is passed through the conductors to anneal them. Insulation is applied by extruder 17 whose heads are fed from a common supply of insulant, and markings are applied to the conductors as required in 22. The leads are then wound on to spool 27, either without being twisted together (Fig. 2, not shown) in which ease they are subsequently twisted together by apparatus (28), or else are twisted together by pulleys (50-53) (Fig. 3, not shown) which rotate about the axis of spool (27) to twist the wire before it is wound on to the spool. The twisted wire may be unwound from the spool such as to give it a reduced or increased angle of twist and may have its leads marked before or after initial twisting.
Patent GB-1508489-A (GB)
Title: Cam system for a knitting machine
IPC: D04B15/82
Filed: 1975-12-12
Abstract: 1508489 Knitting-machines VYZKUMNY A VYVOJOVY USTAV ZAVODU VSEOBECNEHO STROJIRENSTVI 12 Dec 1975 [20 Dec 1974] 51076/75 Heading D1C A knitting cam system e.g. for a multifeed machine comprises a needle-raising bolt cam 3 whose position in a cambox 2 is controlled by a rotary actuating cam 10 securable in a preselected position, the cam 3 being urged by spring 8 into operative engagement with cam 10 by way of a carrier 4. The latter has angularly spaced recesses 16 cooperable with a projection 15 or alternatively may have recesses in its opposite face cooperable with a pawl in the cambox. Two bolt cams-for tucking and clearing-may be provided in a single system whose carriers cooperate with angularly spaced points on cam 10.
Patent GB-1510580-A (GB)
Title: Biaxially oriented nonwoven fabric including long and short fibre
IPC: D04H1/54
Filed: 1976-12-08
Abstract: 1510580 Biaxially orientated non-woven fabric KENDALL CO 8 Dec 1976 [19 Dec 1975] 51270/76 Headings DIN and D1R A biaxially orientated non-woven fabric composed of long fibres of length 0.5in. or more and short fibres of length less than 0.5in. comprises areas 12 of low fibre density having a finger-like configuration and areas 11 of high fibre density, the majority of the fibres in the areas 12 of low fibre density being long fibres which are orientated in a direction substantially normal to the fingers, the majority of the fibres in the portions of the high fibre density areas 12 directly adjacent the fingers 11 being orientated substantially parallel to the fingers and the majority of the short fibres being disposed in high density areas 11. Preferably, slivers 14 of long fibres are drafted by rolls 15 and propelled by air from blower 16 through venturi 17 to distributor chamber 21 whilst short fibres are fed by a further air stream from feeder 18. Suction box 29 collects the fibres on moving conveyor screen 22. Preferably fixed finger-like striping bars 23 are disposed at regular intervals above and across the width of the screen, e.g. 0.125in. wide bars are located at 4 in between their centers. The deflection of air between the bars deposits the majority of the fibres on the screen between the bars and orientated in the machine direction. The minority of fibres which are not deflected will straddle a bar. Their ends will be orientated longitudinally in dense areas 11 and this will straighten the middle portion and orientate it transversely. As the fibre weight per unit area is increased the bars have less effect so that a thick web has an upper layer of randomly aligned fibres. In alternative embodiments the stripping bars are orientated transversely or replaced by impervious areas e.g. star shaped areas (61, Fig. 6, not shown) formed on screen 22 with paint or plastics. The web may contain thermoplastic fibres which bond it when softened by heater 25. In example 1 the web comprises 14 g/yd<SP>2</SP> of 1 9/16" 3 denier rayon, 8 g/yd<SP>2</SP> of " 3 denier vinylacetate/vinylchloride thermoplastic copolymer fibres and 4 g/yd<SP>2</SP> of wood-pulp fibres. A plaid fabric (Fig. 7, n.s.) may be obtained by superimposing two layers with their stripes at right angles.
Patent GB-1489397-A (GB)
Title: Apparatus for receiving waste material
IPC: A24F19/00
Filed: 1974-12-02
Abstract: 1489397 Crumb trays SOC FRANCOHISPANO-AMERICAINE (FRANCISPAM) 2 Dec 1974 [3 Dec 1973] 52140/74 Heading A4A [Also in Divsion A2] An ash tray or crumb tray comprises a cup 2 divided into two similar halves and a cup-shaped receptacle 3 made of pliable material, the halves of the cup being pivotable about an axis between a first open position, Fig. 1, defining a cavity for receiving the receptacle 3 and a closed position, Fig. 5, in which the edges of the cup are brought together and the receptacle folded along the first axis. In use, ash or crumbs are placed in the receptacle and the cup halves are closed so that the receptacle forms a closed package, which package, Fig. 7, may then be removed on opening the cup halves. The receptacle 3 has a peripheral flange 11 which may have adhesive applied thereto. The cup is also provided with a flange having grooves and ridges or studs and recesses which engage each other when the cup is in the closed position.
Patent GB-1314355-A (GB)
Title: Semiconductor device
IPC: H01L29/08
Filed: 1970-11-03
Abstract: 1314355 Semi-conductors INTERNATIONAL BUSINESS MACHINES CORP 3 Nov 1970 [10 Nov 1969] 52157/70 Heading H1K A transistor (Fig. 2A) having low base collector capacitance comprises a P-substrate 50 with a P- epitaxial layer 52 into which an internal pedestal collector region 54 extends from the substrate and an extrusive collector region 56 is located to left and right of axes 60, 62 within which the operational portion of the device is located; comprising a P-type base 64 and a N- type emitter 66. Collector regions 54, 56 are formed of N<SP>+</SP> type impurity; and regions 56 form low resistance paths from collector contact 70, 74 to buried sub-collector region 71. P-type base diffusion region 76, 78 in the P-epitaxial layer 52 provides low resistance contact to the internal base region 64 connected to base contact 80, 82 and contact 84 is applied to emitter region 66. Extrinsic base-collector junction 86, 88 is established by light P-conductivity doping in the P- epitaxial layer and high N+ conductivity doping in the extrinsic collector region; resulting in decreased base/collector capacitance at junctions 86, 88. The impurity concentration profiles are given (Figs. 2B, 2C, not shown). In fabrication a P-type substrate 112 is diffused with, e.g. As to produce N<SP>+</SP> region 114 and with, e.g. P to produce plural selectively diffused N<SP>+</SP> regions 116, 118, 120 of which 116, 118 constitute a self isolation region and 120 defines a pedestal collector region (Fig. 3). A P- epitaxial layer 124 is grown on surface 122, during which growth As and P outdiffuse into layer 124 to produce regions 126, 128, 130 (Fig. 4). A P-type conductivity base region 136 is formed by diffusion into layer 124, and extrinsic base region 138, 140 is simultaneously formed to provide low resistivity contact from the surface of the epitaxial layer to the internal base. Alternatively a boron doped oxide is deposited over the P- epitaxial layer and removed from those regions requiring no further diffusion or contacts. Outdiffusion of boron provides low resistivity path to the internal base. During formation of the base regions 136, 138, 140; region 126, 128 outdiffuses towards the surface of layer 124 as isolation region 142, 144, and during in-diffusion of N-type emitter region 146, the N<SP>+</SP> region 142, 144 outdiffuses to surface 150 of P<SP>-</SP> epitaxial layer 124, and emitter diffusion 146 is introduced into regions 152, 154 to provide low resistance compatibility with collector contacts 152, 154. The N<SP>+</SP> outdiffusion of region 142, 144 provides N<SP>+</SP> region 156, 158 defining an isolating PN junction with the P- substrate. As outdiffusion 170 in substrate 112 defines an isolating PN junction with the substrate, and contacts 162, 164 are applied to the base and emitter regions (Figs 5, 6). A PNP transistor may be similarly fabricated, and representative parameters are given.
Patent GB-1417078-A (GB)
Title: Treatment of dilute solutions of organo-lead ions to reduce  the lead content thereof
IPC: C02F1/28
Filed: 1973-11-09
Abstract: 1417078 Removing organo-lead ions from aqueous effluents ASSOCIATED OCTEL CO Ltd 25 Oct 1974 [9 Nov 1973] 52181/73 Heading C1 Aqueous effluents containing organo-lead ions in solution in amounts of 100 p.p.m. (calculated as Pb) or less, are treated to remove the ions by feeding the effluent at a pH of 7 or above downwardly through a column of Zn particles which are substantially free of surface oxidation and periodically interrupting the flow and backwashing the column with water at sufficient pressure to fluidize the Zn particles.
Patent GB-1482434-A (GB)
Title: Straightening machines
IPC: B21D3/05
Filed: 1974-12-03
Abstract: 1482434 Straightening and rolling metal sections NIPPON STEEL CORP 3 Dec 1974 [3 Dec 1973] 52193/74 Headings B3E B3A and B3M A metal section is straightened by rolling at least part of the section to reduce its thickness, while constraining the section to follow a path cured in a plane parallel to the roll axes. In Fig. 6, rolls pairs 11, 11<SP>1</SP> ... 15, 15<SP>1</SP> of the section shown in Fig. 7 engage a section 1 and reduce the thickness of e.g. the shorter web only, at the same time constraining the section to follow a path which is sinusoidal both in a plane parallel to the roll axes and a plane perpendicular to the roll axes. Subsequent rolls 16 ... 20 continue the straightening by bending without reducing the thickness of the section. Each roller may be adjustable along its axis and towards and away from the section path. In the Figure all lower rolls and rolls 12<SP>1</SP> and 14<SP>1</SP> of the upper rolls are adjustable vertically and parallel to their axes, the remaining upper rolls being adjustable parallel to their axes only. Such adjustment may be effected by a screw mechanism described, or hydraulically, and the rolls are spring biased to their adjusted positions. The spacing between consecutive rolls may be varied by moving their housings along a common bed, e.g. in the case of rolls 17 and 19.