baber/WOPTO huggingface dataset:
Patent GB-1286879-A (GB)
Title: Improvements in and relating to light-sensitive materials for the preparation of multi-metal offset printing plates
IPC: C08G8/28
Filed: 1969-12-10
Abstract: 1286879 Photo-sensitive materials KALLE A G 10 Dec 1969 [27 Dec 1968] 60319/69 Heading G2C [Also in Division B6] A photo-sensitive material for producing printing plates comprises a multi-metal layer support including a layer of copper or copper alloy and a chromium layer thereon, the chromium layer being coated with an imino quinone diazide of formula: - wherein R is substituted or unsubstituted aryl, R<SP>1</SP> is hydrogen or alkyl, R<SP>11</SP> is alkyl, substituted or unsubstituted aryl or heterocyclic or R<SP>1</SP> and R<SP>11</SP> complete a heterocyclic ring and R<SP>111</SP> is hydrogen, halogen, alkyl or alkoxy and 33-100% by weight, based on the diazide, of a resin at least 30% by weight of which is a novolak, a novolak condensed with monochloracetic acid, or a copolymer of a vinyl compound with an ethylenically unsaturated carboxylic acid the copolymers containing free carboxylgrachs while the remainder, if any, consists of a film-forming polymer with no free carbonayl groups, at least 20% by weight of the resin being either the film forming polymer or the copolymer specified above, the resins being present in the following proportions:- 0-50% by weight of the condensed novolak, 0-80% by weight of the novolak and 0-100% by weight of the copolymer containing free acid groups. The support is preferably trimetallic with'an aluminium or steel bottom layer and the copper layer may be brass. The imino quinone diazides used are those of Specification 942404 and the copolymers used are styrene/maleic acid, vinyl acutate/maleic acid and methyl methacrylate/ methacrylic acid. The light-sensitive layer may also contain a dye.
Patent GB-725060-A (GB)
Abstract: 725,060. Sparking plugs. SMITSVONK, N. V. June 8, 1953 [June 9, 1952], No. 15692/53. Class 7 (4). The sparking surface of a low-tension plug is interrupted at four equi-distant locations 4, the gaps being formed by sawing or grinding the active faces of the electrodes 1 and 2 and/or the insulating material 3. In a modification, three interruptions are made by drilling. The gaps permit expansion and contraction of the components without damage resulting to the insulator.
Patent GB-2006454-A (GB)
Title: Photographic materials or containing polymeric mordants
IPC: G03C8/56
Filed: 1978-10-06
Abstract: Photographic materials containing a photographically useful compound and a polymeric mordant which bond to each other covalently comprise a support bearing a layer or layers containing a photographically useful compound, or a compound capable of releasing one, containing a -ZNHR, -SO2NHR or hydroxyphenyl group  wherein R is hydrogen or an alkyl or substituted alkyl group and Z is an alkylene, arylenealkylene or cycloalkylene group, any of which may be substituted, or, when taken together with R and the NH, may complete a heterocyclic group; and a polymeric mordant comprising a polymer having recurring units of the formula:   <IMAGE>  or   <IMAGE> wherein R<2> is hydrogen or an alkyl or substituted alkyl group, R<1> is hydrogen or an alkyl, substituted alkyl, aryl or substituted aryl group, L is a linking group comprising an alkylene, arylene or arylenealkylene any of which may be substituted or a -COOR<3>- or -CONHR<3>- group wherein R<3> is an alkylene, arylene or arylalkylene group any of which may be substituted, W is an electron-withdrawing group selected from -SO2-, -CO-, -OCO-, -SO-, -(NR<1>CO-)m and -NR<1>SO2-,  m is 1 or 2, n is 0 or 1 provided that when n is 0, W is -SO2- or -OCO-, and X is a leaving group which can be displaced by a nucleophile or eliminated as HX by treatment with a base. Methods of preparing several polymeric mordants are described.
Patent GB-2012558-A (GB)
Title: Body harness for camera
IPC: F16M13/04
Filed: 1979-01-02
Abstract: A body harness for carrying a camera assembly in front of the cameraman, has an upper part 18 for engagement of the shoulders and upper back, interconnected with a lower part 19 engaging the hips. The harness places most of the vertical load on the hips and most of the horizontal load on the shoulders and upper back. <IMAGE>
Patent GB-2016829-A (GB)
Title: A method and device for supplying power to an AC/DC load
IPC: H02J9/06
Filed: 1979-03-05
Abstract: A load U which can operate from AC or from DC, may be powered either from an AC source (SA) e.g. an AC mains supply, or from a DC source (SC) e.g. a storage battery for emergency use. First static switching means (JA) connect the load to the AC source while second static switching means (JC) connect the load to the DC source. The static switching means are controlled by detector circuits (DA, DC) for detecting the state of conduction of the switching means, and control circuits (CC, CA) for controlling the conduction of the switching means such that current may not flow from one of the sources to the other via both of said switching means. The switching means (JA) may comprise inverse-parallel connected thyristors (TH1, TH2) or a triac.   <IMAGE>
Patent GB-2044036-A (GB)
Title: Colour Separation Overlay of Television Signals
IPC: H04N9/75
Filed: 1979-03-09
Abstract: In colour separation overlay of television signals the value of the keying signal is defined on the chrominance phase diagram by two straight-line generators which pass through the origin, enabling the keying signal to be derived from encoded PAL. The keying signal is also used to change any chrominance components within a keying sector thus defined and which contains the backdrop colour to a colour at the edge of the sector. The chrominance components are separated out (7) from an encoded PAL input signal and demodulated (8, 9) with respect to two conveniently- chosen phase axes. A measure of the vector difference of the instantaneous chrominance phase from the generators in a direction parallel to a key colour axis is obtained (10 to 19) and used to control a selector switch (25) which switches between the foreground and background signals. In the presence of a keying signal, the foreground signal has its luminance reduced and its colour changed so as to be outside the keying sector (21 to 24). <IMAGE>
Patent GB-2018965-A (GB)
Title: A process for recovering superfluous gas in coke dry quenching process and an apparatus therefor
IPC: C10B39/02
Filed: 1979-03-20
Abstract: A superfluous circulating gas in a coke dry quenching installation, is obtained by adjusting the addition of diluting gases (16, 18) to the circulating gas used in the cooling tower (3) for coke discharged from a coke oven so that the composition of the circulating gas is more than 4% of H2, more than 14% of CO, less than 1% of O2 and the calorific value is more than 700 Kcal/Nm<3>. The superfluous circulating gas is branched from the circulating gas pipe (at 19) and used for supplementing the fuel gas for the coke oven. <IMAGE>
Patent GB-2034282-A (GB)
Title: Portable Fuel Tank Assembly
IPC: B65D88/00
Filed: 1979-06-04
Abstract: A fuel tank assembly for storing fuel at petrol stations, comprises two or more tanks 1, optionally supported on a beam 2, having a space 3 between them, which assembly is balanced so that it can be lifted at a point of support, e.g. by an eye provided on a bar 7. Stays 4 can be provided to prevent the tanks 1 bending apart when the assembly is lifted. The space 3 may accommodate pumping means. <IMAGE>
Patent GB-2027320-A (GB)
Title: Loudspeaker housings
IPC: H04R1/34
Filed: 1979-07-31
Abstract: A loud-speaker housing (10) consisting of a cabinet (14) in which a loud-speaker (12) is adapted to be mounted with the diaphragm mounted on the front (18) of the cabinet which has an aperture (20) formed therein. A plate member (22) which extends over the entire area of the aperture (20) is secured to the front of the cabinet and is spaced-apart therefrom to allow the passage of sound waves emanating from the diaphragm around the sides of the plate member (22). <IMAGE>
Patent GB-2029667-A (GB)
Title: Television camera
IPC: H04N5/30
Filed: 1979-09-03
Abstract: An image 1 radiating in at least two different wavelength ranges and/or distributions, e.g. a colour image, is reproduced by means of a lens 2 and an optical splitter 3 simultaneously as two mutually symmetrical images 4, 5 on the photosensitive coating 11 of a photoelectric transducer. The images 4, 5 are converted into video signals 9, 10 by scanning the photosensitive coating 11 by scanning rasters 7, 8 which are substantially mutually symmetrical. This symmetrical arrangement removes the need for devices, for correcting geometrical distortions and variable sensitivities in camera tubes and allows tubes, such as image intensifier tubes, having heavy geometrical distortion to be used. <IMAGE>
Patent GB-2031642-A (GB)
Title: Nuclear reactor
IPC: G21C13/073
Filed: 1979-09-07
Abstract: A liquid metal cooled fast breeder nuclear reactor comprising a nuclear fuel assembly submerged in a pool of coolant contained in a primary vessel is housed in a concrete vault. A core cover structure suspended from the roof of the vault and immersed in the pool of coolant comprises a plurality of vertical tubes 15 braced apart by perforated grid plates 18, 19. Intermediate grid plate 19 has a permeable shroud which constrains coolant passing through the perforations in the grid plate to flow transversely over the upper surface to reduce the transient temperature differential. <IMAGE>
Patent GB-2057965-A (GB)
Title: Heater adapter for making polyethylene pipe connections
IPC: B29C65/20
Filed: 1979-09-12
Abstract: A platen 10 for use in heating the end of a first thermoplastic pipe 26 and simultaneously heating a portion of the sidewall of a second thermoplastic pipe 24 so that the two pipes together can be joined in perpendicular relationship, the platen having portion 36 with a convex surface 38 for heating the first pipe 26 and portion 28 with a concave surface 30 for heating the second pipe 24, the platen heating surfaces having grooves 40 therein, the grooves 40 serving to increase the area of contact between the platen and the plastic pipes to thereby increase the melt depth, promote the mixing of the two surfaces when they are pressed together, provide escape channels for entrapped air and thereby effect a better heat fusion of the pipes. <IMAGE>
Patent GB-2033677-A (GB)
Title: Switched electrical connector
IPC: H01R33/955
Filed: 1979-09-27
Abstract: A switched connector, preferably a b.c. lampholder, has an input contact 18 and an output contact 14 for each pole. Each output contact 14 is biased outwardly by a spring 30 which also biases a common cam follower 28 against a cam surface 24 on a common actuating member 20. The input and output contacts are bridgeable by a rod 26 of a length such that the bridging connection can only be established when the output contacts are retracted, e.g. by the presence of a bulb. The connector automatically switches "off" if the output contacts extend. <IMAGE>
Patent GB-2035854-A (GB)
Title: Aluminium powder blasting slurry sensitizer
IPC: B22F9/04
Filed: 1979-11-09
Abstract: A water dispersible aluminium powder composition contains from 0.1% to less than 5% by weight of a polyvinylpyrrolidone resin and is prepared by comminuting a particulate aluminium feed in a hydrocarbon medium and in the presence of from about 0.1 % to 5% by weight of a polyvinylpyrrolidone resin powder. Excess hydrocarbon medium is removed to provide a paste composition containing 15% to 30% by weight of the medium. The paste is mixed with water or a polar organic solvent for polyvinylpyrrolidone to displace the hydrocarbon medium from the composition. From about 3% to 15% by weight of water or solvent remains in the composition.
Patent GB-2036750-A (GB)
Title: Tannin complexes
IPC: C08H1/00
Filed: 1979-11-21
Abstract: The precipitation of tannin with one or more other substances, including gelatine, natural and synthetic gum and synthetic derivatives of gums, collagen, milk protein, albumen, plastics materials and natural or synthetic rubber in latex form yields complexes which have the following properties; workability, before hardening, into a variety of shapes which are retained after hardening; upon exposure to air becoming hard and mechanically strong below a particular temperature; being moisture resistant; and being resistant to microbial action. The complexes may have some or all of the following applications; use as preservative coatings for foodstuffs; use as foodstuffs, including meat analogs and chewing gum; use in photography; use as industrial fibres; use in making casings. Work with and applications of the tannin-gelatine complex are described in detail. Methods of preparing and handling the complexes are described.
Patent GB-2046860-A (GB)
Title: Connector suitable for connecting pieces of timber
IPC: F16B15/00
Filed: 1980-02-08
Abstract: A connector suitable for connecting together pieces of timber is formed from a base 11 by punching teeth 13, 14, the teeth being of non-linear cross-section throughout their length. The teeth are preferably arranged on the base in such a way that the thickness of material between the teeth is substantially constant. The teeth 13, 14 are of different width and length. <IMAGE>
Patent GB-2069567-A (GB)
Title: Arcuate shaft lining segments
IPC: E21D5/04
Filed: 1980-02-20
Abstract: The invention relates to an arcuate shaft lining segment 10 formed with an integral inwardly extending flange 11 around the inner surface to provide a support in a ring of segments for a landing and thereby save the need for a special ring of segments designed to support a landing in the shaft. <IMAGE>
Patent GB-2063580-A (GB)
Title: A device for stripping the outer insulation from a circular cable
IPC: H02G1/12
Filed: 1980-03-27
Abstract: The present invention relates to a device for stripping the length of the outer insulation of cables having a circular cross-section and to a method of using the device. In order to avoid the problems of known stripping devices which are not self-centring, a stripping device is provided which comprises cutters 1, having curved edges 1b, and being arranged in pairs, each pair of cutters being movable in a radial groove of a holder 2. Control cams 3 are provided which have cam grooves 3a in the form of curved slots. The slots 3a serve to move the cutters 1 by means of guide pins 1a provided on each cutter. In use, relative rotation between the cam plates 3 and the holder 2 causes the cutters 1 to move in the radial grooves of the holder 2, whereby the cutters 1 cut into the outer insulation of a circular cable which has previously been inserted into the device along the axis of the device. The cam slots may follow a logarithmic spiral. <IMAGE>
Patent GB-2049749-A (GB)
Title: Velvettype fastening web and method of manufacturing the same
IPC: A44B18/00
Filed: 1980-04-29
Abstract: A velvet-type or snap-together fastener web comprises a warp-knitted ground structure and series of interlooped loops disposed in at least every other wale, each loop including a pair of mushroomed stems projecting from the wale at each course. To produce such a fastener web, a double-faced fabric is knitted on a Raschel warp knitting machine, and is separated into a plurality of strips by dissolving transversely spaced water-soluble threads in the fabric. Each strip is divided into front and back fabric webs by severing thermoplastic thread portions therebetween, leaving a multiplicity of raised stems on each fabric web. The raised fabric stems are then heated to mushroom their ends.
Patent GB-2076204-A (GB)
Title: Improvements in or relating to a coin-freed gaming machine
IPC: G07F17/34
Filed: 1980-05-16
Abstract: A mechanism 10 for incorporating in a gaming machine, for example a "fruit machine", comprises a handle 16 connected to a ratchet plate 12 rotatably mounted to a support plate 11. When released by coin-freed means 18, the ratchet plate 12 can be rotated, from a rest position with pawl 26 in recess 14 to an operated position with paw 26 in recess 15, by handle 16. Then spring 35 returns ratchet plate 12 and handle 16 to the rest position, damped by damper 38. Pawl 26, with return spring 28, is operative in both directions, to prevent reversal of movement except at the ends of travel of ratchet plate 12, when the pawl 26 enters recesses 14 and 15. The starting signal for the gaming machine is produced by contact device 31, when operated by a cam 30 integral with pawl 26 when pawl 26 returns to its intermediate position upon entering recess 15, as ratchet plate 12 reaches its operated position. <IMAGE>
Patent GB-2052950-A (GB)
Title: Machine for lasting heel seat portions of shoes
IPC: A43D21/14
Filed: 1980-06-19
Abstract: In a tack seat lasting machine the wipers, 90, are moved lengthwise of the shoe and inwardly thereof under the action of a single piston-and-cylinder 74, 72 arrangement. For setting the appropriate "nail pattern", the action of said piston-and-cylinder arrangement is terminated by adjustable stroke limiting means, comprising a valve 142 actuated by an abutment 148-146, the valve moving with the wipers and the abutment being adjustably positioned in the path of the valve. A further abutment, spaced from the first-mentioned abutment, controls the rest position of the wipers. The wipers are arranged symmetrically centrally of the machine, and the heel band is capable of clamping a shoe in the position in which it is presented by the operator, thereby avoiding the need to adjust the wipers for lefts and rights. <IMAGE>
Patent GB-2069101-A (GB)
Title: Valve device for a piston pump
IPC: F16K1/34
Filed: 1980-07-24
Abstract: A valve device including a valve seat 7 and a valve body 9 co- operating therewith, the valve body 9 having a part-spherical seat surface (14, Figs. 2 and 3, not shown) and the valve seat having a concave or frustoconical seat surface (15, 16) so that a liquid can flow smoothly along the respective surfaces of the valve body and the valve seat, with energy generated by the valve body contacting the valve seat being decreased, thereby reducing noise. If the valve body is incorrectly seated on the valve seat, the valve body can be automatically returned to its correct position by virtue of the action of the surfaces of both members. <IMAGE>
Patent GB-2058818-A (GB)
Title: Spray adhesive compositions
IPC: C09D1/04
Filed: 1978-06-27
Abstract: Adhesive spray coating compositions comprising alkali metal silicate solution, inorganic powder containing at least 15% kaolinite and finely divided silica have an acceptable balance of properties, particularly excellent storage stability. Preferred embodiments comprise a solution of alkali metal silicate containing a substance which mineralogically contains more than 20% kaolinite and also finely divided silicic acid.
Patent GB-2058218-A (GB)
Title: Centrifugal pump
IPC: F04D29/66
Filed: 1980-08-29
Abstract: A centrifugal pump 1 with an impeller 2 and an inlet elbow 3 has a conduit 5 extending from the delivery side 7 to an annular chamber 4 encircling the intake flow chamber just upstream of the impeller. A plurality of apertures, distributed around the circumference of the intake flow chamber connect the latter with the chamber 4, the apertures being inclined circumferentially so that the fluid flow from chamber 4 via the apertures has a rotational sense about the centre-line of the intake flow chamber, which is the same as that in which the impeller 2 rotates. The injection of fluid into the intake flow chamber from the chamber 4 thus induces a swirl within the intake chamber which influences the occurrence and development of the part-load vortex in such a way that cavitation loading of the impeller under part-load conditions is reduced. A control valve 6, which may be operated automatically, is disposed in conduit 5 to enable the chamber 4 to be cut off from the delivery side of the pump under full load operating conditions. <IMAGE>
Patent GB-2084284-A (GB)
Title: Heated pipeline
IPC: F16L53/37
Filed: 1980-09-22
Abstract: Crude oil or other viscous fluid is transported in cold locations by a pipe-line consisting of an outer protective pipe 2 and an inner oil- conveying pipe 1, said pipes being made of a ferromagnetic material and connected to a source 4 of A.C. current at one end to generate heat, the inner pipe having a covering 7 of an electric and heat-insulating material and the outer pipe being covered by a concrete layer 8. <IMAGE>
Patent GB-2062079-A (GB)
Title: Precast Wall Unit for Silage Pit or Tank
IPC: E04H7/28
Filed: 1980-10-07
Abstract: A precast concrete wall unit 100 for a tank or pit comprises a pair of spaced walls 11 and 12 which converge towards one another from the base of the unit to the top edge thereof, and which are connected together at least at the top edge of the unit by spaced bridging pieces 13 extending across the gap between the two walls. Preferably the bridging pieces 13 extend substantially the entire height of the unit, forming vertical channels 14. Each side edge of the unit 10 is preferably recessed at 15 to facilitate grouting between abutting units. <IMAGE>
Patent GB-2063606-A (GB)
Title: Retrace driven horizontal deflection circuit
IPC: H03K4/64
Filed: 1980-10-28
Abstract: A resonant horizontal deflection circuit that includes a field-effect transistor 50 in its output stage is disclosed. The inherent high input impedance of the field-effect transistor eliminates the need for a driver transformer so that the horizontal driver stage 14 may be directly coupled to the output stage. Also the bilateral conduction characteristics of the field-effect transistor's drain-source channel eliminate the requirement for the conventional damper diode. <IMAGE>
Patent GB-2085731-A (GB)
Title: Implant lens with biarcuate fixation
IPC: A61F2/16
Filed: 1980-10-28
Abstract: An intraocular implant unit having a lens (20) with a first limb (21) and a second limb (22) integral therewith and extending outward radially from opposite margins thereof. A long arcuate rim (23) is centered on the end of the first limb (21) and a short arcuate rim (24) is centered on the second limb (22) wherein the rims (23, 24) and limbs (21, 22) are substantially less in lateral dimension than the diameter of the lens (20) for minimizing the weight of the implant unit while assuring positive fixation. A radial slit (26) extends toward the lens (20) from the outer periphery (24a) of the short arcuate rim (24) into an aperture (25) for clamping the short arcuate rim (24) to tissue of a receptor. <IMAGE>
Patent GB-2087506-A (GB)
Title: Clamp construction means for use in structural assemblies
IPC: E04H1/12
Filed: 1980-11-11
Abstract: Clamp construction means for wall and/or roof structures, e.g. for exhibitions etc. has a stanchion profile section (10) with protruding webs (11) forming mortise-shaped pockets (12) and wall and/or roof supports (13, 14) each provided with a clamping means (15) consisting of three fixing elements (16, 17, 18) insertable into three adjacent pockets (12) of the stanchion (10), the fixing elements being urged towards each other by transverse tensioning means such as a screw (24) to grip the intervening webs (11) and simultaneously to urge the inner ends of outer pair of fixing elements (16, 17) against the inner wall (71) of a support box (72) housing the turnbuckle (15). <IMAGE>