baber/WOPTO huggingface dataset:
Patent GB-1282104-A (GB)
Title: Improvements in and relating to edge connectors for a printed circuit board and the like
Inventor: NICHOLSON ROY WALTER
IPC: H01R13/502
Filed: 1968-12-14
Abstract: 1282104 Two-part couplings PLESSEY CO Ltd 10 March 1970 [14 Dec 1968] 59574/68 Heading H2E An edge connector assembly comprises an internally ribbed insulating channel member 6 in which two externally slotted nylon end members 18 engage, and a supporting framework (Fig. 2, not shown) to which the edge connector is secured by bolts passing through aligned holes in the members 18, channel members 6 and supporting framework. When the end members engage the correct ribs, and so are correctly spaced with respect to the framework (2, 4, not shown) holes are drilled in the channel member using the end members as jigs. Resilient electrical contacts having protruding members 16 are located between the ribs at 12, to engage the edge of a printed circuit board which is guided into position by slots 20 in the end members.
Patent GB-1421181-A (GB)
Title: Two equivalent benzoylacetanilide photographic couplers
IPC: G03C7/36
Filed: 1972-12-27
Abstract: 1421181 Benzoylacetanilide colour couplers MINNESOTA MINING & MFG CO 27 Dec 1972 [28 Dec 1971] 59651/72 Heading C2C [Also in Division G2] The invention comprises a two-equivalent benzoylacetanilide photographic coupler carrying on an aromatic ring thereof at least one ballasting group capable of imparting non- diffusing properties to the coupler, and having a halogen atom in the ortho position in the benzoyl residue, and a chlorine or bromine atom as a substituent in the reactive methylene moiety, the coupler also having as a substituent in the 2-position in the aniline residue a halogen atom or an alkyl, alkoxy or dialkylamino group, and/ or as a substituent in the 5-position in the aniline residue, an alkanoylamino, alkanoyl, aryloxyalkanoylamino, arylaminosulphoxy or arylsulphonamido group, the said substituents altogether including alkyl groups having a total of at least 10 C atoms. In the examples, the couplers are obtained by treating the corresponding couplers wherein a hydrogen atom takes the place of the Cl or Br atom in the reactive methylene moiety with sulphuryl chloride or N-bromo-succinimide. The said couplers having only H atoms in the active methylene groups may be obtained by acylation of the appropriate amine with an appropriate acylating agent, the said amines may be obtained by reduction of the corresponding nitro compounds, and of the said nitro compounds, those which contain amide or sulphonamide groups may be obtained by acylating the appropriately substituted nitroaniline with an appropriate acylating agent. 2-Cetoxy-nitrobenzene may be obtained by treating the sodium derivative of o-nitrophenol with cetyl bromide. 3 - Nitro - 4 - methyl-laurophenone may be obtained by nitrating 4-methyl-laurophenone with C.HNO 3 .
Patent GB-1242952-A (GB)
Title: Improvements in the forming of holes in the earth
IPC: E02D3/10
Filed: 1969-01-17
Abstract: 1,242,952. Boring earth. RAYMOND INTERNATIONAL Inc. 17 Jan., 1969 [6 Feb., 1968], No. 59754/70. Divided out of 1,242,951. Heading E1F. The subject matter of this Specification, viz a rotatable drill pipe having water jet openings, a stirring paddle at the lower end, and scarifying teeth projecting laterally from the paddle, is also disclosed in Specification 1,242,951.
Patent GB-1308170-A (GB)
Title: Diaminoxanthene or thioxanthene spirodibenzopyrans their manufac ture and use
IPC: C09B11/24
Filed: 1970-12-23
Abstract: 1308170 Diamino-xanthene(orthioxanthene)- spiro-dibenzopyrans CIBA-GEIBY AG 23 Dec 1970 [23 Dec 1969 3 Nov 1970] 61096/70 Heading C2C Novel 3<SP>1</SP>,6<SP>1</SP>-diamino-xantheno (or thioxantheno) - 9<SP>1</SP> - spiro - 6 - dibenzopyrans of the general formula: wherein X is an oxygen or sulphur atom, Y 1  and Y 2  are alkyl or aryl radicals, Z is a hydrogen atom or an alkyl group and the benzene rings A and B are optionally substituted by alkyl, or sulphonic acid groups or halogen atoms, are prepared by reacting a xanthylium (or thioxanthylium) salt of the formula with a Grignard compound of the formula wherein u is an anion, oxidizing the resulting product, splitting the ether at the methoxy group and treating with an alkali. A lithiumorganic compound may be used instead of the Grignard compound. The oxidation, preferably using chloroanil as the oxidizing agent, is suitably carried out at an elevated temperature. The ether-splitting is suitably accomplished using hydrogen bromide or hydrogen iodide in glacial acetic acid solution, or with BCl 3 , BBr 3 , or AlCl 3 . The novel compounds possess "cryochromic behaviour" (defined).
Patent GB-747594-A (GB)
Abstract: 747,594. Vibration detectors. LINDHOLM, N. G. H., and JUSELIUS, S. O. March 8, 1954 [March 19, 1953], No. 6679/54. Class 40 (4). [Also in Groups XIX and XXXVIII] A vibration detector comprises a light coil 2 on a non-magnetic metal former 18 which is mounted between spring diaphragms 12, 13. The diaphragms are clamped between the centre and end parts of a casing 17 to which vibration is communicated by a feeler 23. Coil 2 moves relative to the casing in the air gap between an inwardly facing ring 22 on the casing and polepieces 21 of an annular permanent magnet 3, which is mounted on annular ring 20 fitting in a recess in the housing. The voltage generated in the coil, the instantaneous value of which is proportional to the velocity of the vibration, is fed through transformer 9, to a capacitor 8 and a germanium or silicon crystal rectifier 10 which rectifies the output. The rectified voltage is measured by meter 11.
Patent GB-2023395-A (GB)
Title: Improvements in beehives
IPC: A01K47/06
Filed: 1978-06-19
Abstract: In a beehive the upper and lower surfaces of the sections 19 in which the honeycombs are formed are normally exposed to contamination with beeswax. According to the invention the surfaces are each protected by a removable panel 17 which is apertured at 18 to correspond with apertures 22 between the sections which permit bees to gain access to the interiors of the sections. <IMAGE>
Patent GB-2027606-A (GB)
Title: Method and device for in-situ cleaning a gas treating reactor
IPC: B01J19/00
Filed: 1978-06-21
Abstract: In an in-situ cleaning device for a gas treating reactor of the type comprising a column (1) accommodating piles of adjacent, gas-permeable cells (4) containing a solid, and in- and outlet means (2, 3) for the gas to be treated, steam blowing nozzles are provided opposite each cell, operated by switching valves (6) arranged within the reactor, connected at the valve inlet side with a steam line (7) leading from a steam pressure source outside the reactor, and at the valve outlet side with a plurality of steam lines (8) each leading to a group of steam nozzles (13). The arrangement is such that in any position of the valve, communication is effectuated between the steam source and one of the groups of nozzles, means being provided for remotely switching the steam supply to other nozzles. <IMAGE>
Patent GB-2024683-A (GB)
Title: Rolling mill screwdown assembly incorporating hydrostatic guide
IPC: B21B31/32
Filed: 1978-07-14
Abstract: The invention provides a hydraulic screwdown assembly for adjusting the pressure on working rolls in a rolling in mill stand consisting of a respective control member which effects the displacement of the said rolls in order to adjust the pressure to be transmitted to the said working rolls, the said control member consisting of an hydraulic cylinder in which, between the piston and the inner wall of the hydraulic cylinder there is inserted an hydrostatic guide extending over at least one axial portion of the said hydraulic cylinder. The mill may be of 2 or 4-high construction. <IMAGE>
Patent GB-2013518-A (GB)
Title: Catalytic Reaction Chamber for Gravity-Flowing Catalyst Particles
IPC: B01J8/12
Filed: 1978-08-11
Abstract: The invention seeks to prevent stagnant catalyst areas forming in gravity flow hydrocarbon conversion catalytic reactors e.g. multiple stage, and provides a catalytic reaction chamber (2) comprising, an outer, perforated catalyst-retaining screen (13) defining a reactant stream manifold space (14) between it and the chamber wall; and inner, perforated centerpipe (15) defining between it and the catalyst-retaining screen an annular-form region to be occupied in use by a catalyst bed (16); a plurality of catalyst inlet conduits (11); and, a plurality of vertically- positioned catalyst-transfer, or catalyst-withdrawal, conduits (17) circumferentially-disposed substantially adjacent the outer surface of the perforated centerpipe, extending substantially the entire length of the annular-form catalyst bed region and, containing a first plurality of apertures (18) facing into the catalyst bed and sized to permit catalyst particles to flow through them. <IMAGE>
Patent GB-2005400-A (GB)
Title: Burner Combustion Apparatus
IPC: F23D11/24
Filed: 1978-08-30
Abstract: A combustion chamber assembly in particular for a burner for a heating system for a building, lies downstream of the burner and is provided, in the region immediately following the burner nozzle 2, with a mixing device 8 through which primary air 11 flows and around whose outer periphery secondary air 13 flows in the axial direction; a central axially open combustion chamber 15 is located after the mixing device 8 which combustion chamber substantially encloses the combustion flame 14 in use, and the combustion chamber is surrounded circumferentially by a second chamber 26 to guide and feed at least the essential secondary air into the combustion chamber. The secondary air enters the combustion chamber 15 through apertures 17, 17a in flame tube 16. The flame tube 16 may be axially movable. <IMAGE>
Patent GB-2008919-A (GB)
Title: Housing animals
IPC: A01K1/00
Filed: 1978-09-06
Abstract: A cubicle building for animals, which building comprises a plurality of divider members 10, 12 defining cubicles, and a passage 18 for allowing the animals to pass to the cubicles, at least one of the divider members being provided with frame means 22 for supporting a sliding member 34, 36, 38 such that the sliding member can be moved from a retracted position in which it does not block the passage to an extended position in which it blocks the passage. <IMAGE>
Patent GB-2030464-A (GB)
Title: Fluid filter elements and their manufacture
IPC: B01D46/52
Filed: 1978-09-21
Abstract: A pleated tubular filter element 1 having scaling rings 4 formed integrally therewith is made by applying adhesive to each longitudinal edge portion of one face of a strip of sheet filter material; folding the strip in zig-zag fashion about a series of spaced transverse fold lines to form an assembly of a series of pleats 2 the ends of each of which are individually sealed by the apposition of said adhesive 3 on the two parts of each pleat; applying a continuous strip of elastomeric sealing material to each longitudinal edge of the assembly so that said sealing strip overlies the sealed pleat ends; folding the assembly of pleats into tubular form; and joining the two ends of the assembly and the ends 5 of sealing strips to each other with adhesive or clips to form a cylindrical filter element with sealing rings, formed by the sealing strips, on each end thereof. The assembly may be folded so that the sealing rings are at the inner or the outer periphery of the element.   <IMAGE>
Patent GB-2031090-A (GB)
Title: Interconnectable rods
IPC: B08B9/04
Filed: 1978-10-05
Abstract: A rod for use in cleaning chimneys or unblocking drains comprise an elongate member 11 having a central bore 12 at each end, a first connecting member 13 at one end and a second connecting member 21 at the opposite end, the contacting members being co-operable with complementary connecting members on other rods to enable the rods to be connected to one another in an end to end fashion, the connecting members each having a central spigot 18 received in the centre bore 12 of the elongate member and a rivet 20 being provided for lockably connecting the spigot to the elongate member to prevent separation thereof. In an alternative embodiment, the spigot 18 is provided with a tapered screw thread. <IMAGE>
Patent GB-2032582-A (GB)
Title: Improvements relating to apparatus for handling bulk or fluent materials
IPC: F16K3/02
Filed: 1978-10-28
Abstract: Fluidised material can be handled generally in the same manner as normal fluids but particular problems arise in the operation of isolating or shut-off valves due to the granular nature of bulk material. The isolating valve described is of a double shutter type in which the upstream valve 8 is first closed to substantially cut-off the material flow and the downstream valve 9 subsequently closed to provide a gas-tight seal. <IMAGE>
Patent GB-2012046-A (GB)
Title: Levelling device
IPC: G01C5/04
Filed: 1978-11-22
Abstract: A levelling device of the kind adapted to locate points in the same horizontal plane has a fluid-filled flexible tube 1 with a valve 2 at each end, which comprises a spring 17-loaded manually operable cap 8 loosely supporting a valve stem 12 which in the closed ("storage") position shown in Figure 2a closes the tube by means of an O-ring 13. In the open ("in use") position, the cap is fastened 26, 27 in a depressed position so that the stem is lowered and the O-ring does not seal and so allows the passage of air during a levelling operation; however, if the fluid rises too far it raises a float 11 on the stem to bring the O-ring back to a sealing position. The tube includes a transparent portion 3 with a horizontal sighting block 4 slidable therealong. <IMAGE>
Patent GB-2014296-A (GB)
Title: Flame Thrower
IPC: F41H9/02
Filed: 1979-02-07
Abstract: A flame thrower for burning fire breaks in grasslands or the like comprises a tube (10) having one end (12) adapted for connection to a hose from a gas supply, a burner nozzle at the other end, a control valve (16) intermediate the ends, a shroud (14) encircling the burner nozzle, and a pilot gas flame line (20), which is holed at (22) for primary air, extending between the tube (10) on the upstream side of a control valve (16) and the shroud (14) so that the flame thrower may intermittently be operated without repeatedly having to ignite the burner. <IMAGE>
Patent GB-2043083-A (GB)
Title: Flame retardant polyphenylene ether compositions
IPC: C08K5/523
Filed: 1979-03-06
Abstract: There are provided flame retardant thermoplastic compositions suitable for molding, the compositions comprising a normally flammable polyphenylene ether resin, with or without a styrene resin, and a flame retardant amount of a flame retardant agent having the formula:   <IMAGE> or mixtures thereof, wherein R1, R3 and R5 are, independently, hydrocarbon, R2, R4, R6 and R7 are, independently, hydrocarbon or hydrocarbonoxy, X<1>, X<2> and X<3> are halogen, m and r are 0 or integers from 1 to 4 and n and p are from 1 to 30. In Examples bisphenol-A bisphosphate, bisphenol-A polyphosphate and hydroquinone bisphosphate and added to poly(2,6-dimethyl-1,4-phenylene)ether alone and blended with a rubber-modified high-impact polystyrene.
Patent GB-2017449-A (GB)
Title: Method and apparatus for compressing dynamic range of back-scattered signals
IPC: G01S17/95
Filed: 1979-03-23
Abstract: A method of compressing the dynamic range of received back- scattered signals, for example lidar signals, and apparatus for carrying out the method, wherein the effective receiving area of a detector is selected in dependence upon the minimum range R from which all back-scattered signals are required to be detected in accordance with the following formula:  dk = D . f/R where dk is the effective receiving area of the detector D is the diameter of the transmitted beam at the distance R and f is the focal length of the receiving system. Close range echoes thereby produce an image greater than detector surface whereby energy impinging thereon is reduced. <IMAGE>
Patent GB-2046205-A (GB)
Title: Rope haulage systems and guide roller therefore
IPC: B61J3/04
Filed: 1979-04-10
Abstract: The invention provides a guide roller, for guiding a rope attached to a carriage travelling along a track around a bend in the track, comprising a base (1), a spindle (3) mounted on the base (1) and a flanged sleeve (6) mounted rotatably on the spindle (3). The spindle (3) is mounted on the base (1) at an angle to the vertical of about 20 DEG . The sleeve (6) is biased to remain in an extended position and is movable towards the base (1) axially of the spindle (3). The flange (26) is disposed at right angles to the axis of the spindle (3). The roller will find use in rope haulage systems, especially in such systems when used to transport men and materials in a mine. <IMAGE>
Patent GB-2050182-A (GB)
Title: Method of and apparatus for drying liquid suspensions or solution
IPC: B01D1/22
Filed: 1979-06-05
Abstract: Carrier bodies 20, in the form of balls or polyhedrons wetted with or coated with a liquid containing a solid which is desired to be recovered, are supplied to and move down within a bed inside a treatment chamber 11. Hot air supplied by way of a plenum 21 passes up through the bed and evaporates off the moisture, leaving the solid on the carrier bodies 20 which then roll onto separator plate 29 whereat loosened solid material falls into chute 28. To simplify recoating of the bodies 20 and to return them to the top of the bed in the chamber 11, the bodies 20 are entrained by the liquid which is forced up duct 38 by a pump 41. Liquid and bodies emerging at the top of the duct 38 are separated by a screen 45 which provides for the bodies to roll back to the top of container 10. Any excess liquid entering the container 10 with the bodies is conducted back to tank 43 by a catcher box 25 having a mesh cover 26. <IMAGE>
Patent GB-2023324-A (GB)
Title: Electronic percussion device
IPC: G10H1/40
Filed: 1979-06-06
Abstract: An electronic percussion device having units for sound, speed, beat and rhythm production, the units being actuated by way of a console- keyboard, in which the unit for sound production has a read-only memory (ROM) in which original recordings lasting from approximately 50 ms to approximately 1 s of individual percussion instruments or groups thereof are stored digitally at particular locations. The ROM can be read by way of a series addresser adapted to be actuated by the console keyboard and by the tempo, beat and rhythm generator, the read-out digital information then passing to a digital- analog converter, and the corresponding analog signal from the latter being passed to an output line of the electronic percussion device.
Patent GB-2023864-A (GB)
Title: Liquid crystal display device
IPC: G02F1/139
Filed: 1979-06-19
Abstract: Between polarizers (1,2) an electro- optic display cell (3, 4, 5, 6) comprises a positive dielectric anisotropy nematic liquid crystal layer 6 having display zones (11) which in the unexecuted state differ from, and thus contrast with, other areas in having 90 DEG optical rotatory power. A field E between associated electrodes 7,8 produces homotropic alignment in zones 11 and destoys the contrast, but some zones 11 may have no electrodes for a permanent display. At zones 11 both cell plates 3, 4 have parallel homogeneous alignment layers (by rubbing or vapour deposition) with mutually orthogonal alignment directions. In the other areas, such directions would be mutually parallel, as shown, or one or both homogeneous alignment layers may be overlaid by homotropic alignment layers (e.g. cathodic sputtering, vapour deposition, or a surfactant). The liquid crystal may contain an optically active additive. <IMAGE>
Patent GB-2025507-A (GB)
Title: Curtain walling
IPC: E04B2/96
Filed: 1979-06-25
Abstract: A curtain wall has vertical mullion members (4) through which it is secured to load-bearing floor slabs 2 at a spacing from the floor slabs. Fire-resistant panels (20) are interposed in the gaps to check the passage of smoke and flames between floors. The panels overlie the rear faces of the mullion members over a depth substantially greater than that of the floor slabs and bear against said rear faces to reinforce the mullions against wind loads. Any residual spacing between the panels and the floor slabs can be closed by fire-resistant elements (70, 72) that also form service ducts. <IMAGE>
Patent GB-2026384-A (GB)
Title: Bandsaw for cutting elongate workpieces
IPC: B23D55/04
Filed: 1979-07-06
Abstract: A machine frame (2) carries a support 4 for an elongate workpiece (6), drive means (20) for rotating the workpiece on the support during a cutting operation and a band saw 28 pivotally mounted on the frame for movement between an operative cutting position and an inoperative, retracted position. <IMAGE>
Patent GB-2031733-A (GB)
Title: Medical instrument
IPC: A61M25/01
Filed: 1979-09-11
Abstract: A medical instrument, e.g. a catheter 4 or swab 9 for insertion into the urethra has an introducer portion for isolating the instrument body from bacteria at the outer end of the urethra comprising a sheath 5 impervious to bacteria and having a closed end 7 which opens on application of pressure from within the sheath 5 to form an aperture for passage of the catheter or swab. The arrangement prevents bacteria being carried along the urethra by the act of inserting the instrument body as the sheath 5 is inserted only to a limited extent so that the catheter or swab emerges from it in an area clear of bacteria. <IMAGE>
Patent GB-2033069-A (GB)
Title: Improvements in or relating to vehicle headlamps
IPC: F21V17/00
Filed: 1979-09-20
Abstract: In an optical system, especially for car headlamps, comprising a glass or face member 6 connected to the periphery of a reflector member 1, one of said members contains a peripheral groove 2 inside of which is seated the peripheral edge 5 of the other said member. The side 4 of the groove has an inwardly- directed lip 10 to engage with a projection 11 on the edge 5, the reflector and, if desired, the member 6 being semi-resilient. The groove may contain material 7 such as glue, plaster or rubber. <IMAGE>
Patent GB-2036686-A (GB)
Title: Obtaining material from silos
IPC: A01F25/20
Filed: 1979-11-23
Abstract: An apparatus for taking material such as ensiled grass from a silo of substantially circular cross-section has two L-like transport rods, 11a, 11b each moved in a circular path whilst maintaining its orientation by the revolution of pins mounted 180 DEG  out of phase or crank plates 13a, 14a. Horizontal rod parts take up material pushing it horizontally to the lower end of an upright guide 26 in which it is moved upwards by the upright rod parts 15a, 15b and then forced on to an output unit. <IMAGE>
Patent GB-2042168-A (GB)
Title: Optical pick-up and transmission of a parameter being measured
IPC: G01K1/02
Filed: 1980-01-29
Abstract: Method and device for the purely passive, fibre-optic pick-up and transmission of a not-directly accessible measured value of a temperature (Figures 1, 2 and 3), a pressure (Figures 4, 5 and 6) or a motion (Figures 7 and 8) by discretely changing the light transmitting capacity of an optical path, through which a light beam has to pass. The light is guided in one or several light guides and the corresponding signal being evaluated directly or via a data processing system. Some embodiments (Figures 1, 24) containing a plurality of light guides T1, T2, T3 and T4 employing a test object 3 that obstructs one or more of the light guides radiation emitting or receiving ends in dependence upon a physical variable (the Figures 4 and 6 embodiments also using a mirror 4). Other embodiments (Figures 5 and 6) employ a reflective surface that reflects light back to fibre ends in dependence upon a physical variable. A pair of embodiments (Figures 7 and 8) employ a motional element that has a regular pattern on it and the light guides detect the changes in the pattern as the element moves past the guides ends. In a further embodiment (Figure 3) the example shown, a liquid crystal 10 exhibits an abrupt change in transmission between an incoming light guide 7 and outgoing light guide 7 at a predetermined temperature. <IMAGE>