baber/WOPTO huggingface dataset:
Patent FR-1451813-A (FR)
Inventor: AAS HERBERT GUSTAV
IPC: G02F1/33
Filed: 1965-10-28
Granted: 1966-09-02
Abstract: 1,127,238. Television; light deflectors. UNITED AIRCRAFT CORP. 8 Oct., 1965 [28 Oct., 1964], No. 42717/65. Heading H4F. A light beam 14, preferably a laser beam, is deflected by means of an ultrasonic deflection or scanning cell comprising a transducer 10 and a transparent medium 12, the transducer being actuated to establish a standing acoustical wave within the medium thereby producing a time varying density gradient and thus a time varying refractive index gradient within the medium normal to the direction of light propagation which causes the light beam to be deflected back and forth at the ultrasonic driving frequency. The curves T 1 -T 3  in Fig. 3, represent the acoustical pressure gradient within the cell, the portions of the curve to the right of the centre-line illustrating regions of higher density and those to the left regions of lower density. The magnitude of the angle of deflection of the light or laser beam is primarily determined by the wavelength of the sound wave, the index of refraction of the cell medium which is preferably a liquid, i.e. tetrachloroethylene, and the peak pressures. The cell medium may alternatively comprise crystalline quartz, water or luuite. As the light beam diameter is smaller than the sonic wavelength, the divergence or distortion of the light beam is not significantly affected and if it is directed through a pressure nodal plane of a sinusoidal standing wave the light beam deflection is sinusoidal. To obtain a more linear pressure gradient a triangular instead of a sinusoidal wave may be used, and to improve the performance of the cell a mosaic or segmented transducer is used. Cavitation of the cell liquid is inhibited by operating the cell under pressure, and fine tuning for adjusting the resonant frequency of the cell is achieved by increasing or decreasing this pressure, major tuning adjustments being accomplished by means of spacers and screws. By employing two deflection cells, one horizontal and the other vertical, Fig. 1, not shown, the cells being driven from the same ultrasonic power oscillator with a 90 degrees phase shift between them, a circular scan is generated. This scan may be made to spiral by amplitude modulating the driving power at a lower frequency than the ultrasonic frequency to provide a two-dimensional area coverage. An optical imaging system using this arrangement is described with reference to Fig. 5, not shown, in which the scattered radiation from a target area is received and used to modulate a cathoderay tube electron beam in accordance with the reflectivity of the target area.
Patent GB-1052239-A (GB)
IPC: G21C17/038
Abstract: 1,052,239. Monitoring reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. Oct. 7, 1963 [Oct. 15. 1962], No.39015/62. Heading G6C. A nuclear reactor having a liquid-cooled core contained within a vessel, is provided with a coolant boiling monitor comprising sound guide penetrating the vessel and extending to a point within the coolant, an electro-acoustic transducer coupled to the sound guide externally of the vessel, and means connected to the transducer for registering the transducer output. Fig. I shows a sodium cooled fast reactor including a number of fuel element sub-assemblies 13. For each sub-assembly there is an instrumentation tube 20 passing through the top shield 21 of the reactor and terminating at the upper end of the sub-assembly. A sound guide 22, which may be a hollow or solid metal rod, passes through each tube 20 into the coolant. At the top of each guide 22 is a transducer, e.g. of lead zirconate, the output of which passes to an amplifier 24, a band-pass filter 25, and a trip amplifier 26. Boiling sodium produces noise peaks at 1000 c.p.s. and 3000 c.p.s. which are clear of the normal coolant noise spectrum and the filter 25 may be centred on one of these frequencies. The trip amplifier 26 may be arranged to initiate an alarm or an automatic shut-down of the reactor in response to an input indicating boiling of the coolant. The sound guide 22 may be provided with a cylindrical resonator at each end and the frequency selectivity of the resonators may be sufficient to make the inclusion of filter 25 unnecessary.
Patent GB-1052320-A (GB)
IPC: C25B11/00
Abstract: 1,052,320. Storing electrodes. ESSO RESEARCH & ENGINEERING CO. Sept. 15, 1964 [Feb. 6, 1964], No. 37644/64. Heading B8C. Electrodes with a redox type catalyst are stored in a liquid comprising a reducing agent to prevent polarization. The liquid may be a liquid reducing agent or an aqueous or acid solution of an organic or inorganic compound.
Patent GB-1229001-A (GB)
IPC: C14B1/02
Filed: 1968-10-23
Abstract: 1,229,001. Endless conveyers. MASCHINENFABRIK TURNER A.G. 23 Oct., 1968 [22 Nov., 1967], No. 50306/68. Heading B8A. [Also in Division C6] Hides 1 are conveyed between belts 2, 7, to a de-hairing, de-flashing, &c. tool 12, the upper belt 7 being deflected away from the lower belt at 13 so as to accommodate the tool 12. The hides are subject at the cutting zone to vacuum applied via a pipe 21 and perforations 33 in the belt. As shown the belt 7 is returned at 14 to the conveying path, but this belt section may be replaced by a guide roller.
Patent GB-1232699-A (GB)
IPC: G01S1/40
Filed: 1968-12-13
Abstract: 1,232,699. Radio navigation. STANDARD TELEPHONES & CABLES Ltd. 13 Dec., 1968, No. 59338/68. Heading H4D. In the kind of radio beacon in which a radiation source is effectively moved along a linear path by sequential energization of aerials in a linear array, the amplitude of the radiation is made a minimum at each end of the array and a maximum at its centre. Undesired phase transients (and wide spectrum) are thereby reduced. The maximum/minimum ratio of the amplitude tapering may need to be restricted and full amplitude tapering is effectively then achieved by adding an amplitude modulator in the receiver.
Patent GB-1239044-A (GB)
IPC: H01L21/265
Filed: 1968-12-17
Abstract: 1,239,044. Semi-conductor devices. HUGHES AIRCRAFT CO. 17 Dec., 1968 [26 Dec., 1967], No. 59880/68. Heading H1K. A contact region is provided in a semiconductor substrate by depositing contact material on the surface and bombarding with an ion beam to drive the material into the surface. Gold and gold-antimony alloy are the preferred contact materials for silicon and germanium and gold-tellurium alloy is the preferred contact material for gallium arsenide. The ions may be inert with respect to the semi-conductor, e.g. carbon, silicon, helium, neon or krypton, or may comprise one component of the contact material, for example gold may be deposited on the surface of the wafer and bombarded with ions of antimony or tellurium to produce a goldantimony or gold-tellurium contact region in wafers of N-type silicon or gallium arsenide respectively. The excess contact material on the surface is removed by etching and the wafer is annealed to relieve lattice defects. Indium phosphide is also mentioned as the semiconductor material.
Patent GB-1239535-A (GB)
IPC: G09B23/24
Filed: 1970-02-13
Abstract: 1,239,535. Model of the periodic classification of the elements. S. BORRUSO. 24 June, 1970 [13 Feb., 1970], No. 6990/70. Heading G5G. A three-dimensional model which is a representation of the periodic system is provided with representations 1, 2, 3 of the elements which representations are arranged in a continuous sequence in the order of their atomic numbers the sequence being arranged in a continuous spiral defining three helices having parallel axes. As shown the spiral starts at point 4 and winds round drum 1 and drum 2 which forms a figure of eight with drum 1 and on to a third drum 3 which surrounds and is connected to drum 2.
Patent GB-1239574-A (GB)
IPC: G11B5/29
Filed: 1968-06-05
Abstract: 1,239,574. Making magnetic heads. INSTYTUT MASZYN MATEMATYCZNYCH. 5 June, 1968 [17 June, 1967], No. 26683/68. Heading G5R. A multi-track, two-gap ferrite magnetic head is made by a method which involves leaving the heads mechanically and magnetically connected. Three ferrite bodies 1, 2 are joined by glass to define two gaps, and channels are cut in the outer members 1 to divide them into tracks whilst only grooving the inner member 2. The members 1 are further machined to accommodate coils 4 and a channel is cut along member 2 to receive a screen 5 carrying combshaped yokes 6 to complete the magnetic circuits. The heads on one side of the screen 5 are screened from each other by magnetic spacers (8, Fig. 3, not shown) and a concertinalike phosphor-bronze strip (7) which assists in dissipating electrostatic charge.
Patent GB-1250148-A (GB)
Inventor: KUO T L C
IPC: H01R4/24
Filed: 1970-03-16
Abstract: 1,250,148. Electric couplings. THOMAS & BETTS CORP. 16 March, 1970 [4 April, 1969], No. 12541/70. Heading H2E. To pierce the insulation or oxide on a conductor and make good contact with the conductor, teeth 28 are struck from the surface of a connector 20 leaving recesses 30 to accommodate the displaced insulating material. Each tooth has planar and conical surfaces and two cutting edges (54, not shown) but may have a third cutting edge or serrated edges. Alternative connector configurations suitable for crimping include cylindrical sleeves, rectangular sleeves with accordion sides, connectors having portions folded over, and a connector having teeth on both surfaces, suitable for clamping between two conductors. The teeth are hardened by being struck from the surface.
Patent GB-1252006-A (GB)
IPC: H02J7/00
Filed: 1968-03-13
Abstract: 1,252,006. Battery charging circuits. N.V. TOOLS Ltd. 12 Feb., 1969 [13 March, 1968], No. 12255/68. Heading H2H. [Also in Division G3] A battery charging circuit only delivers an appreciable charging current when the voltage across its output terminals is greater than a first non-zero value below the completely discharged battery voltage, and less than a value below the fully charged voltage of the battery. The charging current in a part of this range is substantially constant. As shown in Fig. 2, the battery B is connected in series with a first transistor TR1, the base of which is supplied from a second transistor TR2 only when the battery voltage is sufficient to break down a Zener diode ZD2. This arrangement prevents current flow if the output terminals of the circuit are shorted together. Initially, a further Zener diode ZD1 will be blocked, and the current will rise rapidly as the battery is charged until a voltage is reached at which the Zener diode ZD1 breaks down. The charging current will now remain substantially constant with increasing voltage until the fully-charged voltage is almost reached, whereupon the current will rapidly decrease owing to the emitter potential of transistor TR2 approaching the base potential of the same transistor and thus reducing the drive to transistor TR1. A diode D1 prevents any current flow if the battery is connected the wrong way round.
Patent GB-1252873-A (GB)
IPC: A47B47/00
Filed: 1970-04-29
Abstract: 1,252,873. Cabinets; furniture combinations. ART METAL-KNOLL CORP. April 29, 1970 No, 20572/70. Headings A4B and A4H. A cabinet or like storage unit housing drawers or shelves, Figs.4 and 5, comprises an enclosure defined by front and rear parts 40a, 40b, a frame 42 disposed within the enclosure and provided with notches (42c, 42d), to receive the edges of the parts 40a, 40b, a band 44 surrounding the enclosure around the frame 42 and provided with grooves 44a, 44b which receive flanges 40d, 40e on the edges of the enclosure parts 40a, 40b, bolts 50 which clamp together the band 44, parts 40a, 40b, and the frame 42 and also serve to secure the cabinet to a support, and arms 52a-d bolted, as 54, to the frame 42 to support drawers or shelves. The bolts 50 may secure the cabinet to the tubular pedestal 32 of a desk. Drawers 60 may be detachably fitted within a rectangular frame 56d forming a part of a telescopic drawer guide assembly 56. In another embodiment, Fig. 9, the cabinet is fitted with shelves 8 slidably mounted on rollers 82 carried by support arms 52, the cabinet being mounted on a wall between a pair of brackets (70) each having upper and lower arms 70a, 70b and each bracket (70) having plates 71 with keyhole slots which engage headed studs 71a on the wall. A plurality of cabinets may be mounted on a tubular pedestal of a desk Figs. 13 and 14 (not shown). In a further embodiment, Fig. 15, cabinets are arranged in columns each having a surrounding frame 94, 96 supporting a table top 100 and secured to feet 98, 98a by the bolts which secured the cabinet parts together. In a further embodiment, Fig. 19, a desk supports a cabinet 38 at one end and is fitted beneath its opposite end with an extension 110 for supporting a typewriter, the extension 110 having a top 112 which is pivotally mounted beneath the desk top 30 or a vertical axis of one end and is supported at the opposite end by a leg 114. In a further embodiment, Fig. 25 (not shown), a drawer is formed by rigidly securing together parts as shown and bolting a separate, moulded plastics front 140 to a front piece 144. This drawer is detachably received by a rectangular frame forming a part of a telescopic drawer guide.
Patent GB-1257246-A (GB)
IPC: B61L3/00
Filed: 1969-10-10
Abstract: 1,257,246. Transistor switching circuits. GENERAL SIGNAL CORP. 10 Oct., 1969 [15 Oct., 1968], No. 49981/69. Heading H3T. [Also in Division G4]  A digital code receiving system (see Division G4) includes a number of decoders each responsive to a given digital code and each including four gates two of which are shown in Fig. 3. Each gate includes two transistors Q1, Q2 and Q3, Q4 which control the energization of polarized devices 75, 76, and further transistors Q5, Q6 used as inverters to control the transistors Q1, Q2 and Q3, Q4. The transistors are turned on in response to a mark applied to the respective code buses 27-34. With transistors Q1 and Q2 turned on the device 75 is energized to provide an output on lines 77 and 78. No output is delivered if either of the transistors Q3 and Q4 are turned on or shorted. In the receiving system after an output has occurred from the device 75 the incoming code is complemented and the two pairs of transistors Q1, Q2 and Q3 and Q4 exchange roles. The polarized device is shown in Fig. 4 and includes an oscillator including a transistor Q7 operable in response to positive and negative energization of the input wires. The generated frequency is applied via a transformer 82 and diode 83 to the base of an output transistor Q8 which is turned on only if the correct polarization has been applied to the inputs to the device. The diode is included to prevent the device operating in response to an abnormally low level input. The device is fail safe in that if transistor Q7 is shorted no voltage is induced in the transformer secondary. Each decoder produces a pulse on one line in response to its associated code and a pulse on a second line in response to the complement of that code and a control device, Fig. 5, responds to these two pulses by energizing a relay CR. The relay is energized by the discharge circuit of capacitor 87 through a switching transistor Q9 which is switched on by the pulse produced in response to the complementary code and switched off, thereby making a charging circuit for the capacitor 87, by the pulse produced in response to the code recognized by the decoder.
Patent GB-1257523-A (GB)
IPC: G01S3/783
Filed: 1969-02-04
Abstract: 1,257,523. Determining position. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 4 Feb., 1969 [5 Feb., 1968], No. 5831/69. Heading G4H. Apparatus for determining the position of a rotation stabilized satellite relative to a heavenly body S (Fig. 3) includes a cylindrical lens L between a slit F in a diaphragm for transmitting light from the heavenly body S and a binary coded plate C comprising a mask with transparent and opaque portions. Behind the plate are photo-cells comprising a laminated strip of material exhibiting the Faraday effect, polarizing material and photo-sensitive material so that digital signals representing tan # where # is the angle between the sun and the satellite are obtained. The slit has a central interruption so that read-out pulses having sharp leading and trailing edges are obtained. The angle may be measured twice per revolution when the azimuth angle is 0 or #.
Patent GB-1258223-A (GB)
IPC: D21H19/32
Filed: 1970-05-27
Abstract: 1,258,223. Release coating. DOW CORNING CORP. 27 May, 1970 [27 June, 1969], No. 25368/70. Heading B2E. [Also in Division C3] A substrate is provided with a release coating by applying to it a composition comprising (1) a benzene-soluble hydroxy-terminated polydimethylsiloxane of at least 350cs/25C, (2) based on the total weight of (1) and (2), either (i) 25-75% of a polysiloxane having triorganosiloxy groups at both ends or (ii) 10-75% of a polysiloxane having one triorganosiloxy and one hydroxy terminal group, the polysiloxane (2) being a benzene soluble polydimethylsiloxane of at least 4000cs/25C and the organo groups being C1-12 hydrocarbon or halohydrocarbon groups, and (3) a cross-linking agent for (1). (see Division C3). The composition may be applied in solution, and suitable substrates are metal, wood, leather, paper or glass cloth, polyester, polyacrylonitrile or polyamide fabrics. In Examples (1) is a liquid or gum, (2) is a dimethylvinylsiloxy-terminated polydimethylsiloxane having incidental OH or vinyl groups or one of a range of trimethylsiloxy-terminated polydimethylsiloxane liquids, and (3) is a trimethylsiloxy-terminated polymethylhydrogensiloxane or methoxyethyl orthosilicate or ethyl polysilicate; there is also present dibutyltin dilaurate or dioctoate and optionally a low molecular weight polydimethylsiloxane diol; the compositions are applied as 5% xylene solutions to paper. The terminal vinyl group in the gum (2) may be replaced by a phenyl, decyl, cyclohexyl, trifluoropropyl or phenylethyl group, or the end unit may be a triethylsiloxy unit.
Patent GB-1264462-A (GB)
IPC: B66F9/075
Filed: 1967-12-28
Abstract: 1,264,462. Masted lift trucks. LANSING BAGNALL Ltd. 28 March, 1969 [28 Dec., 1967], No. 58938/67. Heading B8H. In a lift truck provided with a device for automatically stopping the lift carriage at a height preselected from a set of predetermined heights in which the device comprises a tube 10 carrying vertically spaced limit switches, as described in Specification 945,556, the tube 10 is movable up and down relative to the fixed section of the mast and is maintained at a fixed level as the truck moves along the floor, irrespective of variations in the distance between the fixed level and the floor. The tube 10 is secured to flanges 20 which are slidably supported on spindles 15 extending between flanges 14 secured to the fixed mast section. A rod 24 is pivotally connected between the lower end of the tube 10 and a link 28 which is secured to a shaft 29 rotatably mounted on the truck frame. An arm 35 is secured to the shaft 29 and carries at its outer end a wheel 38 which engages the underside of a fixed guide 37 mounted on a unit of storage racks. The wheel is urged into engagement with the guide 37 by means of springs 17 acting between the lower flanges 14 and the flanges 20. A tube 18 secured to the flanges 20 and movable therewith acts as a guide for electric cables leading to the limit switches.
Patent GB-1264475-A (GB)
IPC: F16D65/095
Filed: 1968-03-19
Abstract: 1,264,475. Disc brakes. GIRLING Ltd. 12 March, 1969 [19 March, 1968], No. 13337/68. Heading F2E. A vehicle caliper disc brake comprises a pair of pads, a caliper with opposed recesses having walls forming arcuate pad guiding surfaces 8, one of the recesses being so shaped that a pad can be inserted by movement in a plane parallel to the disc and means including a spring clip 11 mounted in the pad or caliper to lock the pad in the recess against movement in said plane. In a two-part caliper including inspection windows and two pistons actuating each pad, a first pad is inserted in the gap for receiving the disc and slid back into its recess. The second pad is mounted into one side of the recess and rotated in its own plane until a notch 12 in its backplate 7 engages the clip 11. The clip may be L-shaped and screwed to the caliper. The clips act to press the pad towards the drag bearing face of the caliper and prevent rattle. Alternatively, the backplate carries a U-shaped spring, one end of which engages a peg on the caliper; slot in the backplate allow the ends to move inwards during insertion.
Patent GB-1264498-A (GB)
IPC: G01F23/00
Filed: 1969-05-07
Abstract: 1,264,498. Measuring liquid level electrically. SIEMENS A.G. May 7, 1969 [May 8, 1968], No.23289/69. Heading G1N. A device for mesauring the level of a liquid, 2 in a pressure chamber comprises a buoyancy member 1, suspended from a lever, 4, so that variations of liquid level produce corresponding variations of the force acting on the lever which force is transmitted as a torque through a lever spindle 5 and torsion tube 6 to produce bending of a bending element 9 carrying strain gauges, 11, arranged in a bridge circuit. An end of the spring is mounted on a rigid yoke 14 secured to a housing 20 by two leaf-springs 13, disposed orthogonally of the spindle axis, so that small axial displacements of the spindle, due to variations of temperature or static pressure in the chamber, produce no electrical output signal. Alternative arrangements of couplings and leaf-springs are illustrated in Figs.2 and 3 (not shown), whilst Fig.4 (not shown) illustrates a spring bellows to take up axial displacements of the spindle.
Patent GB-1289373-A (GB)
IPC: C21D8/00
Filed: 1970-07-10
Abstract: 1289373 Heat-treated low alloy steel JONES & LAUGHLIN STEEL CORP 10th July 1970 [16 July 1969] 33611/70 Heading C7A An aluminium-killed low alloy steel containing in percentage by weight C Not less than 0À12 Mn Not more than 1À65 V 0À05 - 0À2 N 0À005 - 0À025 P not more than 0À04 S not more than 0À025 Sn not more than 0À6 Fe balance, with 0À01 - 0À1% of a rare earth metal and/or scandium optionally being present, is hot rolled, finishing at 1550 - 1650‹ F. and cooled at 20 - 135‹F./sec. to 1025 - 1175‹ F.
Patent GB-1295231-A (GB)
IPC: C08K5/00
Filed: 1970-01-08
Abstract: 1295231 Stabilizing polyolefins TOA BOSHOKU KK 8 Jan 1970 [9 June 1969] 990/70 Heading C3P Polyolefin compositions comprise (1) 0À05 to 5 weight per cent of an organic nickel compound and (2) a benzophenone compound or benzotriazole compound in amount not greater than that of the nickel compound, the nickel compound being selected from where X is H or halogen, X 1 -X 6  are H, halogen or C 1-18  alkyl, X 12  is H, halogen or nonyl, R is C 1-18  alkyl, R 1  is H or C 1-18  alkyl, R 2  is H, a metal atom or -MOCOCH 2 NR 1 R 2 , A is H, a metal atom or -MOCOR and M is nickel, zinc, cadmium, calcium, strontium, barium, magnesium or lead. Many suitable stabilizers are listed and examples describe the preparation of dyeable fibres from compositions of polypropylene and (1) nickel 2,2<SP>1</SP> - thiobis - (4,6 - di - chlorophenate), 2,2<SP>1</SP> - thio - (4,6 - dichlorophenate nickel stearate) (4<SP>1</SP>,6<SP>1</SP> - dichlorophenate zinc stearate), nickel 2,2<SP>1</SP> - thiobis - (4 - chlorophenate), nickel 2,2<SP>1</SP> - thiobis - (4,6 - dichlorophenoxyacetate) or nickel 2,2<SP>1</SP> - thiobis- (p - nonylphenoxyacetate and (2) 2 - hydroxy - 4 - octoxybenzophenone or 2 - (31 - t-butyl - 2<SP>1</SP> - hydroxy - 5<SP>1</SP> - methylphenyl) - 5 - chlorobenzotriazole.
Patent GB-1296083-A (GB)
IPC: A44B19/12
Filed: 1970-02-02
Abstract: 1296083 Sliding clasp fasteners OPTI-HOLDING AG 2 Feb 1970 [12 March 1969] 4806/ 70 Heading E2S The element chain of a sliding clasp fastener of the distorted helical type is characterized by the element heads 3 having their medial axis, when viewed in a line normal to the fastener axis, inclined to the normal of the fastener axis, and the arms 6 of the element coils, having an S shaped form when viewed normal to the plane of a fastener.