baber/WOPTO huggingface dataset:
Patent GB-2011912-A (GB)
Title: Polymers useful in photography
IPC: C08F8/44
Filed: 1978-12-28
Abstract: The invention provides mordants formed by quaternising a copolymer of     (a) a monomer containing a tertiary amino group capable of being quaternised e.g. N-vinyl imidazole, and (b) a monomer containing a primary amino group e.g. N-(3-aminopropyl) methacrylamide, the primary amino group acting as a centre which can react with conventional gelatin hardeners such as bis(vinylsulphonylmethyl)ether to effect cross-linking without adding or removing any quaternary or quaternisable sites.   These mordants are used in photographic colour diffusion transfer processes.
Patent GB-2042784-A (GB)
Title: Three-dimensional data displays
IPC: G09F9/30
Filed: 1979-01-08
Abstract: A stack of transparent planar spaced or abutting data sheets has at least one selectively positioned visible datum element on each sheet whereby said datum elements co- operate with one another to define a data display in a three-dimensional configuration. The data sheets may be housed in a cubical frame structure and may be supported, spaced apart from one another, by separators. Intersecting electrical conductors having illuminable indica means at their interconnections, the conductors being connected to suitable energizing means, may be employed to provide an illuminated display. <IMAGE>
Patent GB-2035798-A (GB)
Title: Magnetic polymer particles
IPC: A61K9/50
Filed: 1978-06-01
Abstract: Magnetic polymer particles as carriers of biologically, preferably pharmaceutically active substance are produced. One process of producing the magnetic polymer particles is by treatment of a preferably porous polymer and/or polymerizable monomer with a colloidal solution of magnetic material, the magnetic material being deposited in the pores or lattice of the polymer. The active substance is associated with the polymer either before or after the magnetization. The substance can also be added to a mixture of monomer and magnetic material for deposition in the pores or lattice of the polymer together with the magnetic material at the polymerization. The produced particles can be used for local concentration of a medicine in an organism or for slow release from a deposit, the particles being retained by a magnetic field within a restricted area, and for example, in so-called affinity chromatography and immuno assays, such as RIA, ELISA.
Patent GB-2016132-A (GB)
Title: Filter combination for fibre optic systems
IPC: G02B6/42
Filed: 1979-02-02
Abstract: A light conduction system comprises a light source 1 a first or main colour filter 3, a second colour filter 2 between source 1 and filter 3, and an optical fibre bundle light conductor having an input end 4. The second colour filter 2 serves to filter light from the source 1 before the light reaches the main filter 3 so as to minimise light absorption and therefore heating of the main filter 3. Thus, the transmission characteristics of the main filter 3 remain constant in use. One or both of the filters 2 and 3 may be formed of check or thermal reaction colour-glasses. <IMAGE>
Patent GB-2015401-A (GB)
Title: A Method for Controlling the Flatness of Cold-rolled Plates and Foils
IPC: B21B45/02
Filed: 1979-03-06
Abstract: In the method, a rolling additive (lubricant and coolant) is normally dispersed at a predetermined temperature to a region between the material to be rolled and the respective rolls during the rolling operation. By providing the additive at a temperature different from the said predetermined temperature, in the area in which the thickness of the rolled material leaving the roll gap deviates from the thickness in other areas, the rolling pressure is changed and the flatness controlled. <IMAGE>
Patent GB-2017501-A (GB)
Title: Seals for colostomy or like bags
IPC: A61L24/08
Filed: 1979-03-14
Abstract: A device for sealing an ostomy bag to the skin of a patient comprises a sheet (6) of material capable of adhering to the skin of a patient and having a slit or cut 8 extending as a spiral or the like. An aperture may then be produced in the sheet by unwinding the coil defined by the slit. The sheet may be of a gelatinous material having a basis of Karaya gum and/or another hydrophilic material. <IMAGE>
Patent GB-2026435-A (GB)
Title: Improvements in or relating to a cable drum
IPC: B65H75/28
Filed: 1979-05-15
Abstract: A cable drum has a hollow core 1 and end flanges 2. A chamber is defined in the core 1 by an insert 4 and a port 6 in the core and a port 8 in one flange communicates with the chamber. A cable may be wound on the drum with one end passing through the two ports, the other end being at the periphery of the drum. Thus the cable can be tested whilst it is on the drum. <IMAGE>
Patent GB-2052719-A (GB)
Title: Method and Apparatus for Cleaning and Increasing the Efficiency of a Heat Exchanger
IPC: F28G9/00
Filed: 1979-06-16
Abstract: For improving the heat transfer efficiency of a heat exchanger through which is flowing a heat delivering fluid, and for subjecting the heat exchange surfaces 2 contacted by said fluid to a cleaning action during operation, a compressible fluid is injected under pressure into the heat- delivering fluid so that it expands in and accelerates the latter fluid. The compressible fluid is preferably supplied by a perforate tube 10 into a preliminary chamber 9 which communicates with the interior of the heat exchanger housing 1 via openings 11. The heat delivering fluid flows in the housing 1 and may be water, and the compressible fluid may be steam or compressed air, which may be injected continuously or intermittently. The heat transfer surfaces 2 may be provided by a finned tube coil through which passes a heat receiving medium. <IMAGE>
Patent GB-2026094-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F04C2/344
Filed: 1979-07-12
Abstract: A sliding-vane pump 10 has a cam ring 16 pivotally mounted on a pin 14 so that its eccentricity relative to a rotor 36 can be varied to regulate the output. The ring is positioned in relation to the rotor by fluid pressure in a chamber 62. The axis of the inner surface 44 of the ring is always located in a lower right-hand quadrant between a line 52 through the pivot axis 54 and the axis 50 of the rotor and a perpendicular line 56 through the axis 50 so as to stabilize the ring. <IMAGE>
Patent GB-2027684-A (GB)
Title: Destabilisation of sludges with hydrolysed starch flocculants
IPC: C02F1/52
Filed: 1979-08-02
Abstract: Hydrolysed wheat, corn, and potato starches obtained by aqueous hydrolysis of the starch in the presence of one or more metal salts, are effective flocculants in destabilising dilute as well as thick sludge suspensions.
Patent GB-2029580-A (GB)
Title: Devices for detecting ferromagnetic particles in a liquid
IPC: G01N33/28
Filed: 1979-08-07
Abstract: A magnetic device for attracting ferromagnetic particles in a liquid, such as a lubricating oil, is provided with sensor means to give an indication of the magnitude of the magnetic field in the region where the particles accumulate and hence an indication of the amount of accumulated material. In one embodiment, shown in Figure 1, a Hall effect transducer 19 is located in a gap of a magnetic circuit comprising a permanent magnet 10 and a ferromagnetic body 11. The body is formed as a threaded plug for fitting in the sump of an I.C. engine so that ferromagnetic particles in the lubricating oil collect in and around the gap. The amount accumulated is shown by an indicator or recorder 23. In further embodiments Figures 2, 3 (not shown) a U-shaped magnet or a cylindrical bar magnet may be used. <IMAGE>
Patent GB-2036187-A (GB)
Title: Hand held desoldering instrument
IPC: B23K1/018
Filed: 1979-11-02
Abstract: A hand held desoldering instrument comprises a cylindrical barrel 10 which forms an internal solder retaining chamber. The front end consists of a tip assembly including an end cap 15 and a nozzle tip 16, both being connected to the barrel by an adaptor ring (17) threadably connected to the barrel. A housing 30 is secured by threads to the rear end of the barrel and includes a hollow chamber disposed laterally adjacent to the longitudinal axis of the barrel for housing a spring. A hand operable cap 23 extends into the hollow chamber for compressing the spring. A rod 22 interconnects the hand operable cap to a piston slidable in the barrel, terminating in a cleaning tip for cleaning the nozzle tip. The rod for operating the piston is provided with a recess cooperating with a pushbutton 33 for releasably locking the rod. Alternatively a lever 60 may be secured to the opposite end of the pushbutton to permit release of the cocked instrument from the opposite side of the barrel. <IMAGE>
Patent GB-2040995-A (GB)
Title: Process for treating a C4 hydrocarbon cut to recover butadiene
IPC: C07C67/00
Filed: 1979-11-09
Abstract: A C4 hydrocarbon cut containing 1 ,3-butadiene, acetylenic hydrocarbons and saturated or olefinic hydrocarbons is treated to recover butadiene by admixing the fresh C4 cut with a recycle stream, hydrogenating the resultant mixture, fractionating the product, feeding back an acetylenic stream and recovering butadiene.
Patent GB-2045377-A (GB)
Title: Fasteners
IPC: F16B13/06
Filed: 1980-01-02
Abstract: In order to fasten a piece of vitreous material 1 against a supporting member 2, in such a way as to reduce the risk of breakage of the vitreous material near a fastener 3, the fastener comprises an annular bush 5 of deformable material which is inserted in a hole 4 in the vitreous piece 1 and is engaged by a frusto- conical member which bears against at least the greater part of the length within the vitreous piece 1 of a substantially complementarily shaped hole 6 through the bush 5. Axial movement of the frusto-conical member relative to the bush 5 compresses the bush 5 radially against at least the greater part of the hole 4 in the vitreous material to secure the vitreous piece 1 to the supporting member 2. The frusto- conical member may be a nut 7 engaged by a bolt 9, or be engaged by a conventional nut on a bolt provided with a countersunk head, or be the head of a bolt engaged by a nut, or be the head of a bolt screwed into the supporting member. <IMAGE>
Patent GB-2047852-A (GB)
Title: Slide Valve
IPC: F16K11/065
Filed: 1980-04-28
Abstract: The valve has a piston (24) controlling a slide (30) which has a sliding surface (32) engaging with a sealing plate (40). The latter defines control parts (42, 44, 46) communicating with respective passages (48, 50, 52) for a fluid medium. Sliding of the slide (30) provides communication between respective adjacent pairs of parts through a recess (34) in the slide (30). The plate (40) is formed from a stamped part with the sealing surface (38) defined by the side on which the stamping tool was first applied and lapped. The control parts (42, 44, 46) and the plate edges thereby have a chamfer cross-section. The plate (40) is replaceable and interchangeable to adapt the valve to various applications. <IMAGE>
Patent GB-2053250-A (GB)
Title: Liquid novolak resin
IPC: C08G8/04
Filed: 1980-05-28
Abstract: A method of manufacturing a novolak resin comprises the steps of reacting, at an elevated temperature, an excess of a phenol with aldehyde or ketone under acidic conditions, allowing the reaction to continue until substantially all the formaldehyde or ketone is reacted, stripping water from the reaction mixture after the presence of aldehyde or ketone has substantially disappeared, neutralizing the resulting novolak resin to provide a pH above 5.5, and adding to the resulting neutralized, novolak resin, either before or after stripping, while the resin is still liquid, a furan-containing solvent selected from furfuryl alcohol, furfural, or mixtures thereof, said solvent being added in an amount sufficient to maintain the resulting novolak resin solution as a liquid at ambient room temperatures. The resulting liquid novolak resin is storage stable. The invention also relates to a liquid novolak resin solution comprising an admixture of neutralized novolak resin and a solvent consisting essentially of a mixture of furfural and cyclohexanone. Uses: Binders, e.g. in the manufacture of particle board.
Patent GB-2054075-A (GB)
Title: Adjustment mechanism for automatic compensation of brake lining wear of a disc brake
IPC: F16D65/14
Filed: 1980-06-20
Abstract: The brake has a brake activation mechanism (7) comprising a screw (15) and a nut (12), which on its exterior has a helical gear(13); an adjustment shaft (24) is mounted in a bore transverse to the direction of its displacement of the nut (12) and has a helical gear which engages the helical gear (13) of the nut, and the adjustment shaft (24) is axially displaceable in a clearance range "L" which corresponds to the release clearance of the brake; on wear of the lining the adjustment shaft (24) is adapted to be rotated during brake activation by an amount corresponding to the degree of wear while overriding a frictional anti- rotation lock (30, 33); during brake release nut (12) is rotated and screw 15 is screwed out. The lock is formed by interengagement of shoulder (33) of a sleeve (28) rotationally fast with shaft (24) and a conical bore (30) of a screw (29). Release clearance "L" is adjustable using a grub screw 37. <IMAGE>
Patent GB-2056424-A (GB)
Title: Decomposition of ozone
IPC: B01J23/76
Filed: 1980-07-29
Abstract: A process for the removal of ozone from a mixture of gases, containing ozone, comprises passing the mixture of gases over a catalyst such that at least a portion of the ozone undergoes catalytic decomposition into oxygen, the said catalyst comprising catalytic material including one or more of Pt, Ru, Rh, Pd, Ir, Os, Fe, Co, Ni, Ag, Mn and Sn alloys, mixtures and compounds containing one or more of these metals.
Patent GB-2089725-A (GB)
Title: Inhibition of water ingress into rubber bodies
IPC: B32B15/08
Filed: 1980-12-23
Abstract: A rubber body (such as a braid- reinforced hydraulic hose) of water- permeable rubber has a water barrier layer comprising a pre-formed metal- plastics laminate. The laminate preferably comprises a self-supporting plastics film with a vacuum-deposited metal layer; when the body is a hydraulic hose, the laminate is preferably a tape wrapped helically about the hose, between separate layers of reinforcing braid. Water ingress is substantially less than when a plastics film which is metallised in situ is used.
Patent GB-2070687-A (GB)
Title: Improvements in or relating to fluid agitator assemblies
IPC: B01F7/00
Filed: 1981-02-17
Abstract: The assembly comprises an underwater motor 2 having an output shaft 3 on which an impeller 1 is fixedly mounted. The pump casing 6 is provided with an inlet port 4 in the lower end and at least one discharge port 5 in the circumferential wall thereof. The angular position of a nozzle 12 at each discharge port is variable. A short flexible hose 13 may be attached to a nozzle 12. A stirring blade 9 may be provided upstream of the impeller. The assembly has an agitating effect sufficient to attain rapid and vigorous floatation of deposits. <IMAGE>
Patent GB-2095072-A (GB)
Title: Vibration transducer
IPC: G01H11/02
Filed: 1981-03-18
Abstract: A transducer for detecting vibration comprises a cylindrical permanent magnet 1 suspended in a magnetic field formed by the repulsive forces between the poles of the permanent magnet and the poles of fixed permanent magnets 9, 10, the permanent magnet 1 embracing a coil support 3 anchored at both ends and carrying at least one induction coil 5, 6. <IMAGE>
Patent GB-2077358-A (GB)
Title: Rotary positive-displacement fluid-machines
IPC: F01C1/08
Filed: 1981-05-27
Abstract: In a gear pump, or motor, of the externally-meshing type the idler gear 30 is mounted on a shaft 33 and wear-resistant plates 23, 25 are lodged in bores 15, 17 for the shaft bearings 19, 20 to obviate abrasion of housing end-members 12, 13 by the shaft end-surfaces. The members 12, 13 may be made of die-cast aluminium. A wear-resistant plate 24 may be provided in a bore 16 for the inner bearing 20 associated with the driving gear 29. <IMAGE>
Patent GB-2110261-A (GB)
Title: Telescopic lightweight folding frames
Inventor: FLEMING DAVID
IPC: E04H15/36
Filed: 1981-06-10
Abstract: A telescopic folding framework for use in a tent, marquee or greenhouse comprises a plurality of arch units with their free ends pivotally mounted in fulcrum brackets. The arch units are telescopically extensible in a direction away from the fulcrum brackets and also in a direction parallel to the pivotal axis. A cord passes from unit to unit to enable the structure to be pulled into the erected position. <IMAGE>
Patent GB-2084402-A (GB)
Title: Circuit breaker arc chute
IPC: H01H33/18
Filed: 1981-07-03
Abstract: An arc-chute for a d.c. circuit breaker includes arc runners extending up from the switch contacts to embrace the arc chute which comprises a series of arc splitter plates insulated from each other, and open all around their edges which are coated with insulating ceramic to limit the spread of the arc. The open nature of the arc-chute provides very rapid decompression and cooling of the arc gases and hence a very much more compact chute and switch.
Patent GB-2104936-A (GB)
Title: Sucker rods, pony rods and production thereof
Inventor: NORTH JOHN-HERBERT
IPC: E21B17/00
Filed: 1981-08-24
Abstract: The present invention relates to sucker rods and pony rods for use in a well. Conventional sucker or pony rods are formed from a single length of rod the ends of which are upset forged, machined, heat treated and cold rolled in order to provide a respective coupling at each end of the rod. The present invention provides many advantages compared with the conventional sucker rods by fabricating the sucker rod 10 from discrete components which are friction welded together. The sucker rod 10 is formed of an elongate central member 12 having a respective coupling component friction welded to each end thereof. The couplings may comprise a male component 14 and a female component 16. The coupling components 14, 16 are each provided with a shank 22, 34 which can be held in the chuck of a friction welding device. The shanks 22, 34 are shaped so as to enable raised lettering to be provided on the shank 22, 34 without the lettering 28 degrading the alignment of the component 14, 16 in the chuck. The central member 12 may be formed from a different material to the coupling components 14, 16. <IMAGE>
Patent GB-2104638-A (GB)
Title: Low temperature display cabinet and method of preventing moisture condensate formation on structural parts thereof
Inventor: IBRAHIM FAYEZ F
IPC: F25D21/04
Filed: 1981-10-26
Abstract: In a low temperature display cabinet containing refrigeration means including in a circuit a compressor (55), a condenser (64), an expansion valve (72) and evaporation coils (46, 48, 50) for cooling the cabinet, refrigerant gas is withdrawn from the circuit at a point between the compressor (55) and the condenser (64) and passed in heat-exchange contact with parts of the cabinet which would otherwise be liable to the formation of moisture condensate thereon, before being returned to the circuit at point (C1, C2 or C3) in the vicinity of the condenser (64). The refrigerant gas line includes a desuperheating means (60) for lowering the temperature of the gas in the form of a venturi tube (118, Fig 3), a mixing tube (120, Fig 4) having an orifice plate, or a heat exchanger (124, Fig. 5). <IMAGE>
Patent GB-2092915-A (GB)
Title: Transportable comminuting plant
IPC: B02C21/02
Filed: 1982-01-26
Abstract: A comminuting plant is mounted on a chassis 1 provided with at least one wheel set 2, the feed hopper 4 with feed belt 5 of which plant can be pivoted from a raised operating position into a lowered travel position. The pivotal movement is effected by a longitudinal displacement of the comminuting machine 11 and, optionally, of its preliminary screening device 6, 7, in which case at the same time as the displacement the weight of these means is so distributed over the individual axes of the wheel sets that the permitted wheel load for road traffic is not exceeded. The means 15 effecting the longitudinal displacement of the comminuting machine 11 actuate via cable controls 25, 26, 27 supports 22 acting as lifting props, by which the comminuting plant can be supported in its operating position. <IMAGE>
Patent GB-2099171-A (GB)
Title: Variable-direction field optical radiation directing apparatus
IPC: G02B26/08
Filed: 1982-02-04
Abstract: An optical system for receiving radiation from within a variable direction field and passing it to a detector (1) or for projecting a variable direction radiation beam comprises lens mounting means a convergent lens (8) and a divergent lens (10) rotatable together about a point (14) on the axis of an intermediate fixed divergent lens (9). <IMAGE>
Patent GB-2096422-A (GB)
Title: Conveyor Control Apparatus
IPC: B65G47/50
Filed: 1982-03-23
Abstract: A "code-free" conveyor control apparatus comprising a set of discs rotating at different, but related speeds, generating a cycle greater than the cycle of anyone disc and related to a conveyor cycle, in which a small number of signal generating means associated with the discs gives rise, by permutation and/or repetition, to a much larger number of signals in the course of a cycle, which signals are counted and decoded and a selected subset is applied sequentially to control indicators at on- and off-loading stations, whereby a multiplicity of consignments may be on-loaded at different stations without any mutual interference, at times, expressed in terms of conveyor travel, such that every consignment reaches its appropriate off-loading station when its associated indicator is activated. <IMAGE>
Patent GB-2101662-A (GB)
Title: Hydraulically-operated devices
Inventor: COOK STEPHEN PAUL
IPC: E21D23/20
Filed: 1982-07-05
Abstract: An assembly of mine roof supports each of which has a control member 1 and a hydraulically- operated member, e.g. a cantilever 5. The cantilevers 5 operate one after the other in a predetermined sequence in response to actuation of one of the control members 1. Each cantilever 5 is associated with a pressure-operated control valve 3 and two serially-connected control valves 2 and 6 which normally prevent operation of a cantilever 5 in response to actuation of a control member 1 unless the next-before cantilever in the series has completed its operation and the control member which caused that next-before cantilever to operate has been deactuated. <IMAGE>
Patent GB-2105453-A (GB)
Title: Production of solidified cooled bodies
Inventor: LANG RUDOLF
IPC: H05H1/22
Filed: 1982-07-12
Abstract: Apparatus for producing hydrogen pellets for introduction into a plasma-physical equipment, fusion reactor or the like, comprises an extrusion cryostat T1 and a supply cryostat T2, the temperatures of which can be adjusted independently of each other. The solidified material is extruded from the extrusion cryostat T1 into the supply cryostat T2 at a relatively high temperature appropriate for extrusion, and the material is cooled in the supply cryostat to a lower temperature which is suitable for the ejection operation and which ensures high strength. The apparatus advantageously comprises a double ram 14 which is used as a whole for the extrusion and which incorporates a coaxially guided ejection ram of smaller diameter, by means of which the extruded material can be ejected from the supply cryostat at the required speed. The extruded material is prevented from freezing solid in the supply duct 76 of the supply cryostat T2 by a heating means which has a short time constant and by means of which the walls of the supply duct can be briefly heated up so as to enable the solidified material to be ejected efficiently without its being substantially heated up in the interior. <IMAGE>