baber/WOPTO huggingface dataset:
Patent GB-981160-A (GB)
Title: Improvements in method of converting metal powders produced by chemical-metallurgicaltechniques to wrought form
IPC: B22F9/26
Filed: 1962-12-27
Abstract: <PICT:0981160/C6-C7/1> In a process of producing a sintered wrought body consisting of Ni, Cu or Co, the raw material, such as ore or scrap containing the impure Ni, Cu or Co is leached to form an aqueous solution from which the metal powder is precipitated by high pressure hydrogen and the metal powder is then formed into charges which are sintered in a reducing atmosphere at a temperature below the melting temperature and the sintered compact is then hot extruded. Conventional leaching is carried out with sulphuric acid or ammonium carbonate or sulphate and the leach solution is heated to 300-350  DEG F. in an autoclave with hydrogen at a partial pressure of 50 p.s.i.  The precipitated powder may be dried and sintered in hydrogen at 1900  DEG F. or the powder may be compacted prior to sintering.  The compact is finally extruded at 1700  DEG F. at a pressure of at least 30 p.s.i.g.  As shown in Fig. 3, the precipitated metal powder is fed from hopper 10 into an open ended container 13 which travels along conveyer band 11.  The charged container passes to the sintering furnace 16 and then via valve 17 to the breach of an extrusion press 18, the transfer being effected in a reducing atmosphere. The powder charge is ejected from the container 13 by ram 19 and extrusion then takes place. An inert gas may be introduced into the press at 23.
Patent GB-1414523-A (GB)
Title: Voice prosthesis
IPC: A61F2/20
Filed: 1972-10-23
Abstract: 1414523 Artificial larynx LABARGE INC 23 Oct 1972 [1 Nov 1971] 48769/72 Heading A5R [Also in Divisions F2 and G5] An artificial larynx 1, Fig. 2, comprises an air bypass valve V including a valve body 3 having a port 17 open to the air, a first tube 25 for insertion in a traceostomy opening in a human neck, a second tube 34 for insertion in a cervical esophageal fistula, and a valve member 19 which provides communication between the port 17 and the tracheostomy opening during breathing at stomal levels and which moves to close the port 17 during increased breathing at phonation levels whereby the exhaled air is transmitted via the esophageal fistula to flow over the esophageal mucosa in the area of the cricopharyngeus and provide a sound source that may be articulated for speech said second tube 34 includes a check valve F for the prevention of reflux of secretions into the valve body 3. The check valve F is mounted between the tubes 30, 34 and comprises a flapper valve diaphragm 51 biassed, at stomal levels, to close the valve F which is formed in a two-piece valve body 37, 43 of clear plastics material. The valve comprises a centrally mounted diaphragm 51 of silicone rubber on a spider ring 47 which seats on an O-ring 45 and forms a seal when the two portions 37 and 43 are threaded together. In another embodiment a check valve (FA), Fig. 4 (not shown) is mounted on the distal end of the tube 30 and comprises a resilient flexible diaphragm (61) secured to the top edge of a bevelled end of a tube (59). The port 17, formed in a stem 9 of a movable member 7 having a knob 13, has a bevelled inner end which forms a valve seat 11 which, on rotation, adjusts the pressure to which the valve member 19 responds to close the port 17. A stop 23 prevents excessive movement of the member 19 during more violent expulsions of air from the lungs. In another embodiment. Fig. 5, a reed type breath-powered sound generator G in a valve VA produces a low frequency sound (about 120-180 cps) when air passes through it. The sound generator G comprises a casing 63, a reed 67, a sound chamber 71 and a frequency adjustment screw 73. The valve VA includes a pair of tubular extensions 75 and 77 for trapping fluids in the tubes 25 and 30 respectively and a pair of caps 79 and 81 which may be removed to clean the valve. The tracheostomy tube 25 is provided with a plate 35 with slots 36 by which the prosthesis may be secured to the collar of the user.
Patent GB-1026700-A (GB)
Title: Means for providing variable colored lighting displays
IPC: A63J17/00
Filed: 1964-12-01
Abstract: 1,026,700. Lighting effects. S. S. CRAMER. Dec. 1, 1964 [July 21, 1964], No. 48848/64. Heading A6M. Apparatus for controlling the illumination of at least three different coloured lamps in accordance with the frequency of an audio signal includes switching means operated through selective filters. The embodiment shows stereo sound being taken from a record 4 and fed through amplifiers to loudspeakers 34, 38. The combined outputs from the amplifiers are fed through a pentode 52 to three tuned filters 104, 110, 118 controlling lamps 150, 152, 154, respectively, and thence through diodes 126,126<SP>1</SP>,1261<SP>1</SP> transistors 128,128<SP>1</SP>,128<SP>11</SP> and 136, 136<SP>1</SP>, 136<SP>11</SP> to produce charging pulses to capacitors 142,142<SP>1</SP>,142<SP>11</SP>, At a predetermined level of the pulses silicon controlled rectifiers 148,148<SP>1</SP>,148<SP>11</SP> become conductive for the remainder of the duration of the pulses.
Patent GB-1393790-A (GB)
Title: Modular building construction and erection system utilizing  selectively oriented modules
IPC: E04B1/348
Filed: 1972-10-24
Abstract: 1393790 Prefabricated buildings BUILDING BLOCK MODULES INC 24 Oct 1972 48971/72 Heading E1A In a prefabricated building, such as a multistory building, Fig 1, erected from room units 4 which are of rectangular, tubular construction to define a pair of opposite end walls giving unrestricted access thereto adjacent units are disposed at right angles to one another whereby the open end of one unit abuts a side wall of the adjacent unit, external openings in the resulting building being filled in by cladding panels 11, 12. The building is mounted on a foundation 41, Fig 8, having a securing plate 27 which is vertically adjusted on the foundation by means 43, 44, 47 and is provided with guide means 36, 37 to locate the superimposed unit 4 in position. Each unit 4 is provided with connection boxes 51 for attachment to the foundation and to adjacent units, the box being secured to the unit 4 by re-inforcing rods 59, 61 and anchoring straps for details of which the Specn. and remaining drawings (not shown) should be referred to. One unit 4 is located upon another unit 4 by means of guides 52, 53 and their respective connector boxes are provided with aligned apertures 73 75 to receive bolts 76. A vertical space may be left between certain adjacent units to receive service conduits.
Patent GB-1480363-A (GB)
Title: Travelling-wave tube with an electron gun
IPC: H01J23/06
Filed: 1974-11-12
Abstract: 1480363 Travelling-wave tubes THOMSON-CSF 12 Nov 1974 [13 Nov 1973] 48991/74 Heading H1D In a travelling-wave tube, the cathode 1 and focusing electrode 2 are together connected via cylinder 26 to the annular terminal member 18 via a frusto-conical spring 27, and the control electrode 3 is similarly connected to the terminal member 19 by a frusto-conical spring 28, whereby the radial dimension of the gun is kept to a minimum. Each of the springs 27 and 28 may be formed of a number of separate parts. Members 14, 15, 16, 17A and 17B may be of ceramic, and cylinder 29 is a heat shield.
Patent GB-983273-A (GB)
Title: Improvements relating to synchronously operable electrical machines
Inventor: STEPHEN DAVID DOUGLAS
IPC: H02P1/46
Filed: 1962-12-31
Abstract: 983,273. Control of A.C. motors; dynamoelectric machines. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Dec. 17, 1963 [Dec. 31, 1962], No. 49102/62. Headings H2A and H2J. The salient pole rotor winding 1 of a synchronous machine is excited from the rotor 2 of a co-rotating exciter through rectifiers 4 which also rotate with the machine. A capacitor, resistance-inductance betwork, or other surge diverting device 11 is connected through slip-rings 7, 8 in parallel with the rectifiers. A resistor may be connected netween the brushes for asynchronous operation of the machine. For synchronous operation, the resistor is disconnected, leaving the protective device in circuit. An additional resistor of high ohmic value may be mounted on the rotor of a synchronous motor and permanently connected in parallel with the salient pole winding of the motor. This resistance protects the rectifiers and acts in conjunction with an external resistance to control the starting operation. In another arrangement, the polyphase rotor winding of a synchronous-induction machine is connected through slip-rings to a starting resistor. Two of these slip-rings are interconnected for synchronous operation so that two of the rotor phases are connected in parallel with each other and in series with the third phase. Protective elements are connected in parallel with the rectifiers through another set of slip-rings, or through a pair of the sliprings associated with the starting resistor. In a further embodiment, a salient pole winding is connected to an exciter through rectifiers, as before, and a polyphase pole-face winding is connected through slip-rings to starting resistances. Protective circuit elements are connected in parallel with the rectifiers through light duty slip-rings. Automatic rotor field suppressors may be connected through sliprings to the excitation circuit.
Patent GB-1324440-A (GB)
Title: Preparation of 2-haloethylphosphonic acids
IPC: C07F9/38
Filed: 1970-10-16
Abstract: 1324440 2-Haloethyl phosphonic acids GAF CORP 16 Oct 1970 [17 Oct 1969] 49254/70 Heading C2P 2-Chloroethyl or 2-bromoethyl phosphonic acid is prepared by reacting a corresponding diester in which each ester group is a C 1-8  haloalkyl, alkyl or hydroxyalkyl group with 19À6- 45% aqueous hydrochloric acid at 100-145 C. and under autogenous or greater pressure. The reaction is preferably continued until the product shows a relative ethylene release value (i.e. the amount of ethylene released relative to water when the product is treated with dilute alkali, determined using a gas chromatograph, the value for the pure acid being 82%) of at least 55%. The resulting reaction mixture may comprise an upper aqueous layer and a lower organic layer, and the desired product may be recovered from the aqueous layer.
Patent GB-1460090-A (GB)
Title: Semiconductor photoelectric generator
IPC: H01L31/047
Filed: 1974-11-14
Abstract: 1460090 Photo-cells N M BORDINA V V ZADDE A K ZAITSEVA A P LANDSMAN D S STREBKOV V I STRELTSOVA and V A UNISHKOV 14 Nov 1974 49325/74 Heading H1K A semi-conductor photo-electric generator comprises interconnected photo-cells 1, Fig. 1, with rectifying barriers 6 and isotype (PP + or NN +) junctions 2 adjacent alight-receiving surface 3, wherein the rectifying barrier 6 is located at a distance within the diffusion length of minority carriers from the surface 3. Leads 4, 8 are formed on opposite faces of the photo-cells 1, the lead 8 being solid or having a mesh structure to allow light absorption from both sides. The rectifying barrier 6 may be a PN junction or a Schottky barrier. Various embodiments are described in which the photo-cells have a prismatic shape and the rectifying and/or isotype junctions 6, 2 are formed adjacent a plurality of surfaces of the prism. In one embodiment, Fig. 9, the shape is a parallelepiped and the lead 8 forms a reflecting surface to increase the light gathering power of the photo-cell. A method of forming the generator comprises soldering together a stack of silicon plates with the junctions 6, 2 formed therein, cutting the stack into matrices, forming additional PN and isotype junctions as required, soldering the matrices into stacks, cutting the stacks into monolithic cellular structures, etching the corners of the photo-cells to separate the various junctions, filling the etched corners with insulation, and metallizing the structure.
Patent GB-1426889-A (GB)
Title: Four-reel magnetic tape cartidge
IPC: G11B23/04
Filed: 1973-10-23
Abstract: 1426889 Magnetic tape cartridge MINNESOTA MINING & MFG CO 23 Oct 1973 [24 Oct 1972] 49365/73 Heading B8M A magnetic tape cartridge includes a shell 10 definining an enclosure, a pair of reels 12, 13 supported coaxially in the enclosure for rotation about a common axis, and a second pair of reels 15, 16 supported coaxially within the enclosure for rotation about a second, parallel, axis. The reels 12, 13 are supported for independent rotation and for driving from a driving spindle 25 of a recording and/or reproducing machine via slip clutches, the reels 15, 16 are rotatable together, and the reels 12, 15 and 13, 16 are aligned. A first length of magnetic tape 43 extends between the reels 12, 15 and is wound thereon in the same direction about their axes. A second length of magnetic tape extends between the reels 13, 15 and is wound thereon in opposite directions about their axes, the direction of winding on reels 12 and 13 being the same. As described the reels 12, 13 each carry friction discs 33 which engage discs 28, 21 driven from the spindle 25 which is rotated clockwise, Fig. 2. The shell 10 has an aperture 53 to receive a capstan shaft 54, and apertures 56, 61 to receive a pressure roller 58, and head 63 to engage the tape 43 or an alternative pressure roller and head to engage the other tape. In operation when one of the tapes is trapped between a pressure roller and the capstan shaft that tape is wound from the reel 15 or 16 on to the reel 12 or 13 respectively whilst the other tape is wound on to the other of the reels 15 or 16 from the corresponding reel 12, 13 as this slips on the disc 28 or 21.
Patent GB-1178599-A (GB)
Title: A Circuit Arrangement for Digitalizing an Analog Value
Inventor: COLOMBO GIANNI
IPC: H03M1/00
Filed: 1967-10-31
Abstract: 1,178,599. A/D converters. EUROPEAN ATOMIC ENERGY COMMUNITY (EURATOM). 31 Oct., 1967 [9 Nov., 1966], No. 49431/67. Heading-G4H. An analogue to digital converter in which the analogue value is converted by a shaper 5 (Fig. 1) to a voltage pulse of fixed duration includes a voltage to frequency converter 3 to which the voltage pulseis fed, the output pulses from converter 3 being accumulated in a digital counter 1 for a fixed time interval. In the embodiments described, a univibrator 7, triggered by .an amplifier 6 to which the input analogue signal is fed, enables a gate 2 for the fixed time interval. The converter 3 may deliver two output signals (Fig. 3, not shown) of the frequencies f and 8f controlling the three most significant stages (1a) and the three least significant stages (1b) respectively of a binary counter. Each pulse of the lower frequency signal also resets the lowest stages (1b).
Patent GB-1386134-A (GB)
Title: Multi-circuit brake system
IPC: B60T11/16
Filed: 1972-10-26
Abstract: 1386134 Multi-circuit brake systems; master cylinders; boosters ALFRED TEVES GmbH 26 Oct 1972 [30 Oct 1971] 49458/72 Addition to 1300513 Heading F2F In an improvement in or modification of the invention claimed and described in Specification 1,300,513 the two intermediate master cylinders 53, 54, the brake booster 6, the booster cylinder 8 and the control valve 4 for the brake booster 6 are all arranged in a single brake unit, the intermediate master cylinders 53, 54 being arranged on opposite sides of the boostr cylinder 8 with their axes parallel to the booster cylinder axis but with the operating strokes of the secondary pistons 61, 62 of the master cylinders 53, 54 directed in the opposite direction to that of the booster cylinder piston 86 and the control valve 4 having its central axis 99 approximately at right angles to that of the intermediate master cylinders 53, 54. As shown in Figures 2, 3 the cylinders 8, 53, 54 all share a common reservoir 9 connected therewith by ducts 87, 88, 89 in the housing of the unit although the diagrammatic representation of Fig. 1 shows separate reservoirs 9, 9<1>, 9<11>. The reservoir 9 also communicates with an annular chamber 95 between sealings 92, 93 of the control piston 15 of the control valve 4 via a bore 98, an unpressurized chamber 97 in booster cylinder 8 and a bore 96. Should seals 92, 93 be defective the driver is advised by a larger pedal stroke or by a warning device. An air outlet 100 of the control valve 4 is arranged parallel to the axis of intermediate master cylinder 54 and is so dimensioned that upon connection of the complete brake unit with a vacuum cylinder 6<1> of the booster 6 the air outlet 100 presses against a sealing surface (102) of a sealing (103) in a bore (104), see Fig. 4 (not shown): the sealing (103) supports a pipe (105) which leads to the air chamber of the brake booster 6.
Patent GB-1120759-A (GB)
Title: Sectional boilers
Inventor: RILEY JOHN MICHAEL
IPC: F24H1/32
Filed: 1966-11-04
Abstract: 1,120,759. Sectional boilers. BEESTON BOILER CO. Ltd. 4 Nov., 1966, No. 49499/66. Heading F4A. A cast iron sectional boiler has the end faces of its sections machined flat, so that the sections may be sealed together with a single gas-tight and water-tight gasket therebetween. Each section includes spaces defining a combustion chamber, and two sequential gas passes 10, 8.
Patent GB-1528368-A (GB)
Title: Process for the preparation of synthesis gas
IPC: C10J3/66
Filed: 1975-12-03
Abstract: 1528368 Synthesis gas production SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 3 Dec 1975 [5 Dec 1974] 49639/75 Heading C5E In a process for the production of synthesis gas by the partial combustion of coal, tar is separated from the crude gas produced, gasified by partial combustion with the production of soot, and the soot formed is separated from the gases and combusted together with the coal. Preferably, before gasification, the tar is separated into two portions, one containing solids such as ash and unconverted carbon and the other free from solids. The solids-free portion is gasified with oxygen and steam, and the soot separated from the gaseous products by washing with water. The soot/water mixture thus formed is mixed with the solids containing tar and recycled to the coal combustion reactor for partial combustion with the coal. The coal used may be lignite, bituminous coal or anthracite.
Patent GB-1467060-A (GB)
Title: Torch-ignition reciprocating internal combustionoengine
IPC: F02B19/16
Filed: 1974-11-20
Abstract: 1467060 Pre-combustion chambers NISSAN MOTOR CO Ltd 20 Nov 1974 [20 Nov 1973] 50215/74 Heading F1B A reciprocating type I.C. engine having a precombustion chamber 24 within which a rich mixture is ignited by plug 32 before being directed via passage 26 to ignite the lean mixture within main combustion chamber 18 satisfies the following relationships:- The ratio of the volume of pre-combustion chamber 24 to the total clearance volume is between 6 and 15%. The ratio of cross-sectional flow area of passage 26 to the volume of chamber 24 is between 0À07 and 0À3 cm<SP>2</SP>/cc. The length to diameter ratio of passage 26 is between 0À5 and 3À0. The axis of passage 26 is inclinded to a plane containing the cylinder axis and passing through the passage inlet 38 by an angle between 60 degrees in the direction of swirling flow of lean mixture in main chamber 18 and 15 degrees in the opposite direction. Engine fuel consumption and hydrocarbon monoxide emissions are thus reduced.
Patent GB-1277253-A (GB)
Title: Irradiation apparatus
IPC: G21K5/10
Filed: 1969-10-13
Abstract: 1277253 Irradiation apparatus HIGH VOLTAGE ENG CORP (J W Bailey) 13 Oct 1969 50226/69 Heading H5R The efficiency of electron irradiation of coated material is increased by passing the material through the electron beam such that, at every point of the irradiated surface, the beam is incident at an oblique angle. As shown, two sheets of material 35, 36 are coated with viscous material from hoppers 21 and 22, and fed through the electron beam on a series of rollers, of which those referenced 27 and 28 can be moved towards one another to adjust the angle of incidence of the beam, and to ensure that only a small fraction of the beam passes through the gap between them, which fraction is received normally by a further coated sheet 38 which is moved through the beam at a reduced speed to compensate for the reduced intensity. In a further arrangement (Fig. 3, not shown) two electron beam generators are employed, directed obliquely at respective opposite coated sides of a sheet of material. The irradiation may produce polymerization or cross-linking in such coating materials as polyesters, epoxies, monomers, and acrylates.
Patent GB-1378146-A (GB)
Title: Insulated gate field effect transistor arrangements
IPC: H01L27/092
Filed: 1971-10-29
Abstract: 1378146 Semi-conductor devices MOTOROLA Inc 29 Oct 1971 [2 Nov 1970 7 Dec 1970] 50326/71 Heading H1K A semi-conductor arrangement contains one or more IGFETs in a field of lightly doped material. The arrangement includes the provision of one or more highly doped inversion stopping regions which are formed by diffusion after the provision of an IGFET gate electrode to be in registration with the ends thereof, so that no current can flow between source and drain except under the gate electrode. A somewhat similar arrangement is used to prevent current flow between any two heavily doped regions of opposite conductivity type to the substrate: again a gate electrode is provided between the regions involved and has its ends registered with later-formed diffused inversion stopping regions which prevent surface channelling, and the gate is held permanently closed by a fixed potential such as that of one of the regions. The heavily doped inversion stoppers should not be contiguous with heavily doped regions of the opposite conductivity type (such as IGFET source and drain regions) and are therefore spaced from these by unmodified field material or by other resistive material of the same conductivity type. Contiguity is allowable if the contiguous heavily doped regions are at the same potential, and in such constructions junction-bridging shorting contacts may be provided to prevent potential difference between the regions. Also disclosed is the use of a gate to encircle an area, the gate being kept shut to isolate the enclosed area. Another disclosure is that of the combination of normal gates, permanently closed gates, and inversion stopping regions to allow controlled electrical access to a large area diffused zone acting as the common source of several devices. The gate electrodes specified are of silicon. Some disclosure is shared with Specifications 1,378,147 and 1,378,148.
Patent GB-1394595-A (GB)
Title: Titanium nitride alloy
IPC: G04B37/22
Filed: 1972-11-02
Abstract: 1394595 Ti N alloy SUWA SEIKOSHA K K 2 Nov 1972 [10 Nov 1971 12 Nov 1971] 50577/72 Heading C7A [Also in Division G3]  An alloy, having a golden colour and being suitable for making at least part of a watch case, comprises:- The Ti alloy(s) referred to above comprises at least 90% Ti the balance being one or more of Al, Cu, and Fe. A powder mixture of the ingredients may be compacted and sintered (e.g. at 1600-1700‹C in vacuo) and the product preferably exhibits a hardness of at least 700 Hv.
Patent GB-986185-A (GB)
Title: Case for the transportation of goods in a firm packing such as bottles, cartons and the like
IPC: B65D1/24
Filed: 1963-12-23
Abstract: 986,185. Plastics crates. K. HENNINGER. Dec. 23, 1963 [Dec. 31, 1962], No. 50617/63. Heading B8P. A stack of plastics crates are held together by a rod extending through hollow ribs 4 whose bores extend through the bases of the cases. The ribs are preferably inwardly opening semi-cylinders which serve as drainage openings. The case may have an inwardly set bottom edge 1 which is received in a wider top edge 2 of a subjacent case. Windows 3 may be provided.