baber/WOPTO huggingface dataset:
Patent GB-1517386-A (GB)
Title: Surveillance system
IPC: H04N7/18
Filed: 1975-09-02
Abstract: 1517386 Television surveillance systems J M COUTTA 2 Sept 1975 [6 Dec 1974] 36031/75 Heading H4F A surveillance system 14, Fig. 1, comprises an elongated linear carriage track 34, 36, Fig. 2, a carriage 40 supported by and movable along said track, a reversible drive motor 46 for positioning said carriage along said track, a television camera 20 supported by said carriage and positioned to view regions to the sides of the track, a semiopaque cover 68 extending from end to end of the track, whereby the outlines of said camera and said carriage are hidden, and means for selectively operating said motor 46, the output of said camera being displayed on a TV monitor. Camera 20 is rotatable and tiltable by a motor assembly 56 and has a zoom lens 60. A second television camera 22 is supported beneath carriage 40 and is positioned to scan a second field of view e.g. the digital readout of a cash register 26, in contrast to the field of view scanned by camera 20. The outputs of the cameras are superimposed to provide a composite output to the TV monitor. Video recording means are provided for spaced-in-time frame recording of the output of the cameras, a date-time generator being coupled to the input of said recording means.
Patent GB-1345074-A (GB)
Title: Variable compression ratio internal combustion engines
IPC: F02B41/00
Filed: 1971-07-30
Abstract: 1345074 Two and four-stroke engines SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 30 July 1971 [3 Aug 1970] 36041/71 Heading F1B An auxiliary piston 9 in the head 3 of the main cylinder 1 has a variable stroke so that the compression ratio of the engine may be adjusted. In a four-stroke engine the piston 9 is operated through a rod 17 and a lever 18 from a crankpin 16 on the engine cam-shaft 7 and the pivot 19 of the lever is adjustable in position by an arm 21 on a shaft 22. The piston 9 reaches T.D.C. I at T.D.C. of the main piston 2 or up to 90 degrees of crank angle before and B.D.C. of the piston 9 is adjustable between a position II providing the maximum compression ratio and a position III providing the minimum compression ratio. The piston 9 may define one end wall of a chamber 12 having a fuel injector 13 and opening to the cylinder 1 through an orifice 14. The auxiliary cylinder 8 may open over its full cross-section to the cylinder 1, Fig.2 (not shown). In a twostroke engine the auxiliary piston is reciprocated at the same rate as the main piston and T.D.C. of the auxiliary piston occurs during scavenging, e.g. at B.D.C. of the main piston. The piston 9 may be operated from the cam-shaft 7 through a linkage, Fig.7 (not shown), including a lever (25) having one end pivoted to the piston rod (29) and the other end formed with an elongated aperture (27). A spindle (28) in the lever aperture (27) is adjustable by a device (11) in accordance with the pressure measured by a sensor in the crown of the auxiliary piston to vary the engine compression ratio. The engine may be supercharged and have a plurality of cylinders.
Patent GB-1070790-A (GB)
Title: Solid state pulse generator
IPC: H03K3/33
Filed: 1964-09-03
Abstract: 1,070,790. Semi-conductor pulse circuits. GENERAL ELECTRIC CO. Sept. 3, 1964 (Sept. 3, 1963], No. 36171/64. Heading H3T. A pulse generator comprises at least two steprecovery, charge - storage diodes connected in cascade, the second diode having a shorter switching time than the first. As shown in Fig. 3, a 5-10 Mc/s. sine wave from source 25 is squared by diodes 26 ... 29 and fed to a limiting amplifier comprising transistors 31 ... 40. Capacitor 42 charges during positive half-cycles when the transistors are saturated and begins to discharge resonantly via the primary winding 43 of a transformer 44 when the transistors are cut off. At the commencement of the second half-cycle of the resonant discharge, diodes 46 are turned on by the voltage induced in winding 45 so that the charge-storage diode 23 becomes reverse biased and the reflected value of capacitor 42 may now discharge via inductor 47 until the charge stored in diode 23 has been removed. A rapid rise in voltage now appears across diode 23, so that diodes 49 are turned on and the charge-storage diode 24 reverse biased. When the charge stored in diode 24 has been removed, a very rapid voltage rise is propagated along coaxial line 54 and reflected from the short circuited end 55. A pulse of one watt having a rise and fall time of 0À2 ns and a duration of 0À3 na thus appears across the 50 ohm load 53. The rise time of the waveform fed to diodes 23, 24 should be approximately equal to the respective storage times and substantially less than the respective minority carrier life times. The pulse duration is adjusted by variation in length of line 55.
Patent GB-430826-A (GB)
Title: Improvements in or connected with encased optical observation instruments and the transmission of motion from the outside of the casing to parts within the casing
IPC: G02B23/00
Filed: 1933-12-23
Abstract: 430,826. Optical observatiom instruments. BARR & STROUD, Ltd., and STRANG, J. M., Caxton Street, Anniesland, Glasgow. Dec. 23, 1933, No. 36223. [Class 97 (i)] A part of an encased optical observation in. strument, e.g. a telescope, binoculars, rangefinder, height-finder, or periscope, is movable by magnet action exercised from outside the casing by a control element movable by hand. The control element may be a permanent magnet or electromagnet ordinarily remaining attached to the casing or alternatively may be detached and applied to the casing when desired. Soft iron pieces may be provided in the casing to assist the magnet action. The casing of a telescope may be provided with a rotatable annular control ring which carries two semicircular magnets and is concentric with a rotatable disc pivoted inside the casing. The disc carries a number of filters for alternative use and an armature to co-operate with the magnets on the control element. In a modification the filter disc may have peripheral teeth engaging a pinion the spindle of which carries an armature co-operating with a rotatable control ring outside the casing. Fig. 8 shows a lens carrier E which is moved axially for focusing by screw action in a casing D. A rotatable control ring C<2> on the casing D carries a magnet 18 co-operating with an armature 17 on the carrier E. A control ring movable longitudinally on the outside of the tubular casing of a rangefinder may be used to move the carrier of refracting prisms inside the casing along longitudinal guides. The control element may be used to release locking members.
Patent GB-1397204-A (GB)
Title: Boring tool
IPC: B23B29/03
Filed: 1973-07-30
Abstract: 1397204 Boring tool. KOMET STAHLHALTER-UND WERKZEUGFABRIK ROBERT BREUNING GmbH 30 July 1973 [1 Aug 1972] 36229/73 Heading B3C A boring tool comprises a cylindrical shank 2, and a cutting edge shoulder 5 projecting axially and radially from the shank, the shoulder being of Archimedian spiral form in front view Fig. 4, the centre M of which is located substantially on the axis of the shank.
Patent GB-952230-A (GB)
Title: Improvements in the storage of ozone
IPC: C01B11/00
Filed: 1961-10-09
Abstract: Ozone is stabilized and stored by dissolving in a fluorinated hydrocarbon at a low temperature, introducing the solution of ozone at low temperature into a pressure resistant vessel whose inner surfaces are free from material which would catalyse the decomposition of ozone, and allowing the vessel after closure to reach ambient temperature.  The solvent may be a fluorochloromethane. The receptacle may be of glass or aluminium or any of:  steel, stainless steel, copper if coated with glass, enamel, PTFE, PVC or polyethylene.  In an example a current of ozonized oxygen was passed through liquid trifluoro monochloro methane at - 183 DEG  C.  A pressure resistant vessel also at - 183 DEG  C. was filled to about 1/10 its capacity with the solution obtained, closed and allowed to reach room temperature.
Patent GB-1366254-A (GB)
Title: Electronic circuit unit including a metal oxide varistor
IPC: H01L23/62
Filed: 1972-08-03
Abstract: 1366254 Varistors; printed circuits GENERAL ELECTRIC CO 3 Aug 1972 [5 Aug 1971] 36290/72 Addition to 1366008 Headings H1K and H1R A circuit unit comprises a metal oxide varistor having two electrodes on one face separated by a gap defining the active part of the body and an electronic circuit device electrically and mechanically connected to the two electrodes so that it shunts the varistor body. The active gap may be filled with passivating material, e.g. glass, the whole unit may be encapsulated in a dielectric and a heat sink may be applied to the opposite face of the varistor body which may be of sintered ceramic metal oxide, e.g. basically ZnO with other metal oxide additions. The varistor may comprise the substrate for a hybrid circuit. In Fig. 3, the varistor body 130 is provided with conductive tracks to which are connected a flip-clip 137 which may be a transistor, thyristor or IC, and a circuit element 140 which may be a resistor, capacitor and inductor. The gaps between the ends of tracks 132 and 133 and between 131 and 135 constitute low voltage varistors protecting the devices. An earthed electrode (141) is provided on the lower face of the varistor body so that further higher voltage protective varistors are defined by the bulk of the body between electrodes 131, 134 and 135 and the lower face electrode. In another embodiment (Fig. 6), a dielectric substrate (150) is provided with a varistor body (151) on to the surface of which conductive tracks run to define the active gap and to form a mounting for a flip-clip. In another arrangement (Fig. 7) a monolithic IC is provided with electrodes 73, 76 separated by passivation 79 and a varistor plate 80 is secured on edge across the gap between the electrodes and is provided with a passivating layer 81 over the active surface region.
Patent GB-956615-A (GB)
Title: New substituted diphenylalkylamines
Inventor: STELT CORNELIS VAN DER
IPC: C07D295/084
Filed: 1961-10-10
Abstract: The invention comprises compounds of general formula: <FORM:0956615/C2/1> wherein A represents a straight or branched alkylene group containing 2 to 7 carbon atoms, and B represents an alkylamino or dialkylamino group or a saturated mononuclear five- or six-membered heterocyclic group attached to A through a nitrogen atom, which heterocyclic group may carry one or more alkyl groups and-when alkyl substituted-includes at most 12 carbon atoms, (alkyl groups have 1-6C); and their non-toxic acid addition salts; and their preparation by (1) the Grignard reaction of a compound Halo-Mg-A-B1 (B1 is B excepting alkylamino) with a trifluoromethylbenzophenone, (2) the Grignard reaction of a phenyl-magnesium-halide as such or trifluoromethyl-substituted with respectively a compound of formula: <FORM:0956615/C2/2> or <FORM:0956615/C2/3> or (3) dealkylating a compound wherein B is dialkylamino, e.g. by treatment with a cyanogen halide to form an N-cyano-N-alkylamino compound and hydrolysing and decarboxylating this.  Ketones II and III may be prepared from phenyl-alkyl-ketones, formaldehyde and amines under Mannich conditions; 4-trifluoromethyl-phenyl-ethyl-ketone is prepared by treating ethylbromide with magnesium, cadmium chloride, and p-trifluoromethyl-benzoyl chloride.  In the Provisional Specification B is defined as a basic saturated nitrogen-containing radical containing less than 12 carbon atoms and attached via a basic nitrogen atom, and includes amino.  Pharmaceutical compositions comprise a compound I or a non-toxic acid addition salt thereof, in association with a pharmacologically acceptable carrier.  Tablets, capsules, injectable solutions, lozenges and inhalation sprays are described. The compounds are analgesics.  Specifications 907,825 and 956,616 are referred to.
Patent GB-780762-A (GB)
Title: A new or improved method of producing tufted pile fabrics, and fabrics produced by such method
Inventor: SWINDELL WALTER CHARLES FENTON
IPC: D03D27/00
Filed: 1954-12-16
Abstract: 780,762. Pile fabrics. BRINTONS, Ltd. March 16, 1956 [Dec. 16, 1954], No. 36410/54. Class 142(4) To anchor the pile tufts in an Axminster, Chenille, or Wilton carpet, a soluble or thermoplastic cellulose derivative is incorporated in the fabric during weaving and subsequently fused. The weft, stuffer, chain, or pile yarn may consist of the cellulose derivative or may have fibres of it blended in them, or may be sized with a solution of it. A sliver or spun yarn of the derivative may run alongside yarns of a usual material; or sliver, spun yarn, or folded strip of the derivative may be twisted with them.
Patent GB-1465387-A (GB)
Title: Process and apparatus for the dry transfer of organic compounds to webs of organic material
IPC: D06P5/24
Filed: 1974-08-20
Abstract: 1465387 Printing CIBA-GEIGY AG 20 Aug 1974 [22 Aug 1973] 36574/74 Heading B6C [Also in Divisions A5 and D1] Webs are transfer printed by passing the web 1 to be printed together with and closely spaced from a carrier web 3 through a heating chamber 8 at a temp. of 80-220‹ C. The spacing may be 0À5-50 mm. In Fig. 2 (not shown) the top of the heating chamber is constituted by an endless belt (26) and the sidewalls by metal plates (16). The carrier may also be in the form of an endless belt (25).
Patent GB-1005757-A (GB)
Title: Method of manufacturing expandable synthetic resins
Inventor: HATANO ITARU
IPC: C08F2/18
Filed: 1963-09-17
Abstract: Expandable synthetic resins are manufactured by a process which includes the polymerization, preferably suspension polymerization, under pressure of an a -ethylenically unsaturated compound in the presence of a normally gaseous expanding agent and a nitrite. Suitable monomers are styrene, methylmethacrylate, alpha-methyl styrene and acrylonitrile and mixtures thereof. Examples of expanding agents are hydrocarbon gases such as butane, ethane, propane, methane, butene, isobutylene, propylene and ethylene; halogenated hydrocarbon gases such as methyl chloride, and inert gases such as nitrogen and carbon dioxide.  Preferable quantities are from 3% to 15% by weight of the total quantity of monomer.  Particularly desirable nitrites are those having polymerization inhibiting properties and which are water-soluble, e.g. sodium nitrite and potassium nitrite either singly or as a mixture in the range of from 0.0001% to 0.15% by weight of the total quantity of monomer.  Any catalyst commonly used in suspension polymerization may be used in quantities of 1% or less by weight of the total monomer.  Benzoyl peroxide and lauroyl peroxide are mentioned in the examples.  The expandable beads may be directly expanded in a mould or they may be pre-expanded in boiling water and fully expanded in a mould.
Patent GB-1194053-A (GB)
Title: Synchronous or Non-Synchronous Electrical Machines
IPC: H02K3/22
Filed: 1967-08-10
Abstract: 1,194,053. Cooling electrical machine rotor windings. BROWN, BOVERI & CO. Ltd. 10 Aug. 1967 [12 Aug., 1966], No. 36690/67. Heading H2A. The rotor of a synchronous or non-synchronous electrical machine has a combined starting and damping winding comprising grouped hollow conductors 1 in communication through arcuate pipes 2 at each end of the rotor with an axial chamber 5 in the middle of the rotor core 4 to form a closed liquid e.g. water coolant circuit of several parallel branches confined to the rotor in which circuit the liquid is circulated when the machine is started, by the rotor acceleration. The arcuate pipes 2 may have cooling fins and extend directly to the chamber 5 or be connected thereto by radial pipes 3. The circulation is helped by a thermo-siphon effect resulting from heat generated by the winding creating a temperature differential in the two pipes 3. In a synchronous machine the rotor is of the salient pole type.
Patent GB-1170539-A (GB)
Title: Process for the Production of Foamed Cross-Linked Olefin Polymers
Inventor: BECKMANN ROLF
IPC: C08J9/14
Filed: 1967-08-10
Abstract: 1,170,539. Foamed cross-linked olefin polymers. DYNAMIT NOBEL A.G. 10 Aug., 1967 [11 Aug., 1966], No. 36844/67. Headings C3C and C3P. Foamed cross-linked olefin polymers are obtained by (1) melting an olefin polymer in an extruder, (2) introducing into the decompression zone of the extruder a solution comprising a peroxidic cross-linking agent and a blowing agent having a boiling point below 40‹ C., (3) homogenizing the polymer melt mixture, (4) controlling the temperature of the homogenized mass such that it is capable of flowing through the nozzle of the extruder, (5) forcing the mass through the nozzle of the extruder to form a dimensionally stable partially crosslinked continuous length of foamed olefin polymer, and (6) completing the cross-linking of the polymer by heating. Pigments, fillers, age resistors and sulphur may be in admixture with the polymer. In the examples, polyethylene, polypropylene or an ethylene-vinyl acetate copolymer are used, together with dicumyl peroxide, 2,6-dimethyl-2,5-(t-butylperoxy)hexane, or di-t-butyl peroxide, and CCl 3 F or CCl 2 F 2 , and optionally carbon black, titanium dioxide, sulphur, aluminium silicate, calcium stearate, polymeric 2,2,4-trimethyl dihydroquinoline, zinc stearate, and 4,4-thio-bis-(6-t-butyl-3- methyl phenol).
Patent GB-822177-A (GB)
Title: Improvements relating to cathode ray tubes for colour television
IPC: H01J29/00
Filed: 1955-12-23
Abstract: 822,177. Colour television tubes. GENERAL ELECTRIC CO. Dec. 23, 1955 [Dec. 29, 1954], No. 36880/55. Class 39(1). A cathode-ray tube for colour television reproduction comprises means for passing a beam of electrons through a perforated screen to strike a layer of different colour producing phosphors beyond the screen and means for applying a signal to the screen to cause the beam to excite selectively a desired one of said phosphors. As shown the tube is provided with a perforated conducting screen 29 and a transparent member 30 having a conductive coating 30<SP>1</SP> and the colour phosphors are provided on the member 30 either between the coating 30<SP>1</SP> and the member or on the coating 30<SP>1</SP>. The members 29, 30 are held together by mounts 31 as in Specification 726,214 and the phosphors may be arranged in groups of three concentric arcs as in Specifications 726,214 and 743,796. The screen 29 is 4¢ mils thick and made of cobalt - copper - beryllium ; copper - nickel; stainless steel ; or an iron-nickel-cobalt alloy the apertures taking also the form of concentric arcs and are obliquely inclined to the plane of the screen. The assembly is mounted in the tube by projections 31<SP>1</SP> and a thin metal band 29<SP>1</SP> provided to reduce vibration microphonics. The coating 23, a shielding electrode 33 and the no signal potential of screen 29 is maintained at 6670 volts via lead 36 and the coating 30<SP>1</SP> is maintained at a potential of 20,000 volts via lead 37 to establish a post acceleration field. The colour selection signal is applied at 46 to modulate the potential on the screen 29 at 462 volts peak. By adopting non-uniform spacing between the screen 29 and the member 30, or by curving both uniform colour deflection sensitivity regardless of the angle of incidence of the electrons may be obtained. The electron gun may be of the kind described in Specification 803,221. Specification 713,875 also is referred to.
Patent GB-1315555-A (GB)
Title: Tank supporting arrangement in ships
IPC: F17C13/08
Filed: 1970-07-31
Abstract: 1315555 Ships for hot or cold cargoes JOHN J McMULLEN ASSOCIATES Inc 31 July 1970 [31 July 1969] 37136/70 Heading B7A Apparatus for supporting tanks 14 for containing hot or cold liquids inside ships comprises arms 16 pivotally attached to the tank and the ship in such a way that they are at right angles to a line joining their point of attachment to the tank and the centre 18 of expansion or contraction of the tank which is the point at which it is keyed to the hold.
Patent GB-958267-A (GB)
Title: Improvements relating to methods of making neutron-absorbing devices
Inventor: ASHBY JOHN
IPC: G21F1/00
Filed: 1961-10-17
Abstract: 958, 267. Reactor control rods. TALBOTSTEAD TUBE CO. Ltd. Oct. 16, 1962 [Oct. 17, 1961], No. 37138/61. Drawings to Specification. HeadingG6C. A method of making a neutron absorbing device for a nuclear reactor comprises forming a plurality of compressed and sintered rings from a powder including a neutron absorber, such as boron carbide, stable boride, gadolinium, or europium oxide, mounting the rings between two concentric tubes such that the inner tube passes through the ring apertures, and drawing the assembly over a mandrel in a die aperture to reduce the cross-section of the device and to bond the rings together. The tubes may be mild or stainless steel, and the rings may be electro-plated (e.g. with copper) prior to assembly; a series of drawings may be conducted on the assembly, and annealing at 950-1,000‹C. carried out between each operation. Copper, nickel or iron powder may be used as a matrix in which the neutron absorber is dispensed. The tubular element thus produced may be closed by suitable end members..
Patent GB-1365205-A (GB)
Title: Process for the manufacture of 17-/2-haloalkylidene/-steroids
IPC: C07J13/00
Filed: 1972-08-09
Abstract: 1365205 17-(2-Haloethylidene) steroids F HOFFMANN-LA ROCHE & CO AG 9 Aug 1972 [10 Aug 1971] 37166/72 Heading C2U The invention comprises the preparation of 17-(2-haloethylidene)-steroids of formula (wherein A is the remainder of the steroid molecule, X is halogen and R<SP>1</SP> is H or C 1-6  alkyl) by reacting a corresponding 17α-vinyl- 17#-hydroxy steroid with a vanadium tetrahalide, preferably in the presence of an alkali metal salt, e.g. carbonate, bicarbonate, acetate, propionate. The compounds of Formula I may thereafter be converted by reduction or acylation into the corresponding 17-ethylidene or 17-(2-alkanoyloxy-ethylidene) compounds, and these may then be converted to the corresponding 17α-hydroxy- 17#-acetyl or 17α-hydroxy-17#-(2-alkanoyloxyacetyl) compounds by reaction with a peroxide oxidizing agent (e.g. N-methyl-morpholine oxide peroxide) in the presence of osmium tetroxide.