baber/WOPTO huggingface dataset:
Patent GB-2190264-A (GB)
Title: Calibrating a reflectometer; characterizing an optical fibre device
Inventor: FOUCAULT MARC
IPC: G01M11/00
Filed: 1987-04-27
Abstract: A coupler 2 has two outputs connected to optical fibres f1 and f2 of different lengths. The backscatter curve (Fig. 10) produced by reflectometer 4 (connected to the input of the coupler 2) includes a step characteristic of the coupler 2, the amplitude of which represents a standard attenuation. The attenuation of an optical element 28 connected to the longer fibre is determined by comparison of its corresponding step in the backscatter trace with that corresponding to the coupler. Alternative arrangements calibrate the reflectometer (Fig. 1, 2) or the coupler (Fig. 3, 4) in a similar way. <IMAGE>
Patent GB-2190670-A (GB)
Title: Inhibitors against corrosion by CO2 and H2S in water-in-oil emulsions
Inventor: OPPENLAENDER KNUT
IPC: C09K8/54
Filed: 1987-05-22
Abstract: Inhibitors against corrosion by CO2 and H2S in water-in-oil emulsions, containing   a) an imidazoline or tetrahydropyrimidine derivative of the general formula I   <IMAGE>  and/or   b) an acyclic intermediate thereof of the general formula II   <IMAGE> where in the formulae I and II R<1> is C7- C22-alkyl or -alkenyl, n is 2 or 3 and x is an integer from 0 to 5 and in the formula I Y is H, C8-C18-alkyl or -alkenyl, or   <IMAGE> in which R1, n and x have the above meanings, and in formula II Y is H, C8-C18-alkyl or -alkenyl, or   <IMAGE> in which R1, n and x have the above meanings, are proposed.
Patent GB-2198720-A (GB)
Title: Process for preparing alpha-calcium sulfate hemihydrate
Inventor: GUTMAYER HARALD
IPC: C04B11/26
Filed: 1987-10-08
Abstract: A process for preparing alpha-calcium sulfate hemihydrate by pressureless heating of a suspension of calcium sulfate in the presence of a dehydration catalyst and subsequent filtration, washing and drying is carried out by   a) the underflow of a hydrocyclone of a flue gas desulfurization plant is employed as the calcium sulfate dihydrate suspension; b) calcium chloride originating from the flue gas is employed as the dehydration catatyst; c) part of the mother filtrate rich in calcium chloride is re-circulated as dehydration catalyst and part of the mother filtrate rich in calcium chloride is dried in a spray-drier using a portion of the flue gas after the air pre-heating (LUVO); d) heating without pressure of the calcium sulfate dihydrate suspension is carried out using another portion of the flue gas after the air pre-heating (LUVO); e) the flue gas portions of the steps c) and d) are combined with the portion, if any, of the flue gas directly passed on after the air pre-heating (LUVO) and the combined flue gas portions are introduced into the flue gas desulfurization plant; and f) the hot washing water of the filtration is introduced into the flue gas desulfurization plant.   The process is particularly suitable for flue gases rich in chloride contents. <IMAGE>
Patent GB-2197006-A (GB)
Title: Reinforcement member for concrete or plastics
Inventor: BAINES R R
IPC: E04C5/01
Filed: 1987-10-23
Abstract: A load bearing member comprising a plastics composite material and/or glass reinforced cement having embedded therein at least one spiral reinforcing strip. <IMAGE>
Patent GB-2211416-A (GB)
Title: Artificial tooth and socket
Inventor: FORD BRIAN JOHN
IPC: A61C8/00
Filed: 1987-10-23
Abstract: An artificial tooth socket (Fig. 2) is implanted in the jaw. Into this socket an artificial tooth (Fig. 1) or teeth may be mounted using an adhesive. The socket is fixed using a screw thread or a biocompatible cement substance such as hydroxylapatite. The artificial tooth or teeth is glued in the socket, and if a flexible adhesive is used the bond between the tooth and the socket will be similar to the periodontal membrane which retains the tooth in a natural socket. <IMAGE>
Patent GB-2211925-A (GB)
Title: Portable airfield lighting unit
Inventor: WELSH JAMES CHARLES
IPC: F21V23/04
Filed: 1987-11-03
Abstract: A portable airfield lighting unit comprises a tripod structure formed by the three legs (1, 2 and 3). Each leg incorporates a cylindrical battery housing (4, 5 and 6) of which the lower end has a conical cap (7, 8, or 9) incorporating a ground spike (10, 11 or 12). The legs engage a platform assembly (13) at the upper end and may be pivotally attached thereto for convenience of storage. Below this platform assembly is a radio receiver unit (14) and positioned above the platform (13) is a lamp assembly comprising a clear omnidirectional or unidirectional lamp housing (15) and an omnidirectional or unidirectional infra-red lamp housing (16). Positioned adjacent the lamp housing (15) is a radio receiving antenna (17) which is operatively connected to the receiver. In use, the lighting unit or a number of lighting units are positioned at the required location on the landing strip and they may be activated by remote control or operated manually from an incoming aircraft or a ground position. The radio receiver causes one or other or both of the lamp assemblies to be switched on and possibly also switched off after use. <IMAGE>
Patent GB-2198551-A (GB)
Title: Integrating cavity
Inventor: WELBOURN CHRISTOPHER MARK
IPC: B07C5/342
Filed: 1987-12-21
Abstract: In a system for colour sorting objects (3) such as peas or sweets, in which they are dropped in succession through the central zone of two integrating spheres (2, 1) the second sphere 1, includes means for illuminating the objects (3) with white light (or other electromagnetic radiation) and the peak reduction in flux is detected by at least three detectors (7, 8) for three colours determined by filters (10, 11). To make the illumination more uniform in the sphere 1, there is an annular step (39) around the sphere (1) almost half way down, with light sources equi-spaced around the step. The radiation from the light sources is projected generally axially of the annulus defined by the step such that the radiation strikes a surface in the sphere (1) before entering the central zone of the sphere (1). <IMAGE>
Patent GB-2200438-A (GB)
Title: Safe indicator for firearms
Inventor: TIBBITT KENNETH
IPC: F41A17/44
Filed: 1988-01-13
Abstract: A safe indicator comprises a device inserted into the breech of a firearm to prevent it from being loaded with live ammunition. This device (or snapcap) includes a head shaped to provide a local diaphragm effect, the diaphragm absorbing the impact of the firing pin and flexing accordingly. <IMAGE>
Patent GB-2217335-A (GB)
Title: Compositions for isolation and immobilisation of C-reactive protein in body liquids
Inventor: HEGGLI DAG-ERIK
IPC: G01N33/68
Filed: 1988-04-22
Abstract: A diagnostic composition comprise phosphoryl choline (PC) residues and/or aminoethyl dihydrogen phosphate (AEDP) residues immobilised on a solid phase for quantitative and/or qualitative detection of C-reactive protein in test samples. The linkage between the PC or AEDP residues and the solid phase may be via a molecule different from the molecules of PC or AEDP or of the solid phase, or may be a direct linkage. The solid phase may be porous membrane of nitro-cellulose, polyamide or polyvinylidene difluoride, or polymeric surfaces e.g. of polystyrene or acrylic polymer.
Patent GB-2207590-A (GB)
Title: Insulating coiled resistance heating wire
Inventor: MORGAN DEREK EDWARD
IPC: H05B3/18
Filed: 1988-07-11
Abstract: A coiled heating element is manufactured by providing a coiled element (1) of bare resistance wire (2) in which the coil pitch is not greater than twice the cross-sectional dimension of the wire. The element (1) is stretched by an amount permitting recovery to its original configuration and an electrically insulating particulate material (3) is applied to the stretched element. The stretched element is then allowed to return towards its original configuration thus trapping particulate material between adjacent coils of the element and the element is heated so as to oxidise the surface of the wire.
Patent GB-2217427-A (GB)
Title: Settling or compacting granular material
Inventor: CURRIE NEIL
IPC: F17C13/00
Filed: 1989-03-20
Abstract: A method of compacting granular insulating material in an enclosed space particularly in the annular space between an inner shell and an outer wall of a storage tank utilises an apparatus comprising a carrier (15), means (19) for moving the carrier (15) around the space and for varying the height of the carrier within the space, and a plurality of elongated pokers (22) supported by and depending from the carrier (15). The method comprises periodically lowering the carrier (15) to immerse the pokers (22) into the granular material and then raising the carrier (15) to withdraw the pokers (22) from the granular material and periodically moving the carrier (15) to different positions with the pokers (22) withdrawn from the granular material. The pokers (22) are vibrated relatively to the carrier (15). <IMAGE>
Patent GB-2232153-A (GB)
Title: Process for purifying indole
Inventor: GARAY FERENC
IPC: C07B61/00
Filed: 1989-06-19
Abstract: The invention relates to a process for preparing indole of high purity, comprising the steps of selectively hydrogenating a reaction mixture containing indole, vinyl anilines and other unsaturated compounds in melted state at a temperature of 60-70 DEG C or in an organic solvent at room temperature, in the presence of 0.5-2.0% by weight of an active carbon catalyst containing 5 to 20% by weight of palladium, and distilling off the thus-obtained indole. By the claimed process the indole is obtained in a purity of at least 99% by weight.
Patent GB-2233781-A (GB)
Title: Optical systems
Inventor: PARRY RICHARD JOHN
IPC: G02B1/00
Filed: 1989-07-13
Abstract: An achromatic lens system comprising at least two glass lenses, one lens being made of a first glass chosen to have the property known as a shortened blue partial (as hereinbefore defined), a refractive index not greater than 1.70, and a V@ number less than 55, the glass comprising at least the following components: SiO2, R2O and ZrO2 where R2O is chosen from Li2O, Na2O and K2O, the said components together forming at least 30% by weight of the glass (the balance consisting of compatible components), and the other lens is made from a second glass with a V number of 50 or more.
Patent GB-2236134-A (GB)
Title: A sliding panel frame
Inventor: OSKAM HERMAN
IPC: E05D15/06
Filed: 1989-09-11
Abstract: A sliding panel frame assembly comprising a track 12, a carriage 14 moveable along the track, a plurality of frame members 34, 36 interconnected to form a frame, a corner member 46 connecting at least two adjacent ones of the frame members, a hook 54 mounted on the corner member and means to move the hook between the retracted position within the corner member and an advanced position in which it extends out of the corner member to engage on the carriage 14. The hook is used to adjust the roller 24, 26 position and when fully retracted allows easy removal of the panel. <IMAGE>
Patent GB-2225433-A (GB)
Title: Capacitive-effect acceleration transducer
Inventor: DELL ORTO GIUSEPPE
IPC: G01P15/125
Filed: 1989-11-22
Abstract: The transducer includes a support plate 2 and a support 4 to which is cantilevered a flexible metal blade 6 which faces and is spaced from a fixed metal plate member 3 so as to constitute a capacitor whose capacitance is variable in dependence on the acceleration to which it is subjected. The support plate 2 is of insulating material and plate 3 may be a deposited thin metal layer, or may comprise a second metal blade also cantilevered from support 4. Detector means are provided for producing an electrical signal indicative of the capacitance of the capacitor and hence of the acceleration. The capacitor may either affect the frequency of an oscillator with subsequent voltage to frequency conversion or a fixed oscillator may be connected to a monostable with pulse duration controlled by the capacitor. <IMAGE>
Patent GB-2247027-A (GB)
Title: Vibrating workpiece eg: printed circuit board in contact with chemical or electrolytic treatment solutions
Inventor: HENIG HANS
IPC: C25D17/20
Filed: 1990-08-17
Abstract: A process and apparatus for obtaining an intensive and continuous exchange of electrolyte on the surfaces of work-pieces subjected to chemical or electrolytical treatments is achieved by subjecting the work-pieces to strong pulsating oscillations of a frequency of at least 1 Hz and of an amplitude of less than 10 mm, when immersed in the electrolyte. The vibrations are transmitted from an oscillation generator 3 mounted on the work-piece carrier, such as a rack 1 or a dipping drum. These high frequency low amplitude oscillations may be combined with low frequency, relatively long oscillations, occurring simultaneously The oscillation generator 3 can be arranged either on the individual transportable work-piece carriers 1 or on the tanks which contain the treatment solutions. The work-pieces may be boards for printed circuits and having through-holes, or a pourable mass of parts. <IMAGE>
Patent GB-2247654-A (GB)
Title: Moulded dash panel
Inventor: CONDON ALAN RICHARD
IPC: B60R7/06
Filed: 1990-09-08
Abstract: A dash panel 10 is moulded with formations 20, 21, 22 to define the back and side walls of a storage pocket 23, a shed portion 30 being moulded integrally of the dash panel 10 as a forward extension of the formation 20 defining the back wall. The shelf portion 30 is connected to the formation 20 defining the back wall by a flexible plastic strip 31, so that the shelf portion 30 may be hinged about the flexible plastic strip 31 and secured to the formations 21, 22 defining the side walls. <IMAGE>
Patent GB-2248877-A (GB)
Title: Making door closer
Inventor: PERRINS BRIAN
IPC: F16J1/00
Filed: 1990-10-17
Abstract: A door closer comprises a generally cylindrical body 10 containing a biasing spring and a fluid-damped piston. The body is mounted in a channel-shaped base 29 attachable to a surface and formed as a pressing from sheet metal. The body has a pair of radial shaft bosses 17, 18 which engage respective seats 35 on the base to locate the body relative to the base. Body 10 is attached to the base 29 by welding or adhesive. Cover 30 is press-fitted over the base. Blanks for the cover and base are severed alternately from stock metal strip, one severing action forming the edges of successive blanks (Fig. 3). Bosses 17, 15 are formed by piercing body 10 with diametrical holes, and flanging material around the hole outwards. <IMAGE>
Patent GB-2251044-A (GB)
Title: Tube coupling
Inventor: PARDY RONALD
IPC: F16L33/22
Filed: 1990-12-21
Abstract: A tube coupling for coupling a flexible tube or hose to another component has a male spigot 20 over which the tube is fitted and two clamping members 26, 28, one inside and one outside the tube wall, one being moveable and one stationary. When a tube 12 is fitted into the coupling, the clamping members move apart but when pull-out is attempted, the clamping members move toward one another and clamp the tube wall between them. <IMAGE>
Patent GB-2253707-A (GB)
Title: Strata movement indicator
Inventor: BLOOR ALAN STUART
IPC: E21B47/00
Filed: 1991-03-13
Abstract: A strata movement indicator 8 includes a length of wire 10 having at one end a torsion-spring anchor 12 and at the other a cylinder 14 constituting the indicator element 13 which has three colour bands 16, 17, and 18. The cylinder is moveable within a split guide tube 20 which in use is fixed in the outer margin of a borehole 6. Progressive obscurement of the colour bands is indicative of increasing degrees of strata movement. <IMAGE>
Patent GB-2243455-A (GB)
Title: Process for measuring unbalance of torque converter and process for correcting such unbalance
Inventor: KIKUCHI TOKIO
IPC: G01M1/32
Filed: 1991-04-24
Abstract: An outer member (O) and an inner member (I) of a torque converter T are assembled, and the outer member is filled with oil to establish a condition similar to an actual service state of the torque converter. In this condition, the two members are rotated in unison by motors 27, 23 which are connected together with a measuring device 29 to a controller 29 including a microcomputer. When the rotational speed of the torque converter reaches a measuring rotational speed N (Fig. 12), a plurality of measurements are conducted with the phase of the outer and inner members being varied through a predetermined angle, thereby correctly detecting only an unbalance due to the outer member, with an unbalance due to the inner member being cancelled from the results of the measurements. A balance weight 34 (Fig. 7) having the correct weight to correct the detected unbalance is cut off by a cutter (47) from a metal band 33 fed by a servomotor (35) and attached to an outer periphery of the outer member of the torque converter at a given position by spot-welding using a laser or beam welding tip (74) or by adhesive-bonding (Figs 8-10). <IMAGE>
Patent GB-2244765-A (GB)
Title: Bearing arrangement for carrier of differential drive mechanism
Inventor: AMBORN PETER
IPC: F16H48/285
Filed: 1991-04-24
Abstract: A rotatably drivable differential carrier 1 comprises two toothed output gears 4 and 5 connected to one another by parallel axis differential gears 12 and 13 of which a first group engages one output gear 4 and a second group engages the other output gear 5 with each of the differential gears of the one group engaging at least one of the differential gears of the other group. Bearing means 8 and 9 for rotatably supporting the carrier 1 relative to its drive housing are carried respectively on the output gears 4 and 5 so that the carrier is supported indirectly by the output gears relative to the drive housing. <IMAGE>
Patent GB-2260343-A (GB)
Title: Knitted hose
Inventor: LOWE MARTIN
IPC: D04B1/26
Filed: 1991-10-01
Abstract: A half hose knitted from non-elastomeric yarns has a leg support portion (17) comprising a rib knitted fabric having sufficient elasticity to support the leg portion during wear. The support portion may comprise regions (19, 20) of different rib structures, eg 1 x 1 and 2 x1 respectively, which may be separated by a stretch resistant zone (30) eg of plain fabric. The support portion may alternatively comprise 2 x 2 and 3 x 2 ribbing. <IMAGE>
Patent GB-2252949-A (GB)
Title: Apparatus for transferring an article to and from a conveyor
Inventor: KING STEVE
IPC: B65B53/02
Filed: 1991-10-28
Abstract: Apparatus for use with a mechanism for securing a sleeve upon a container comprises     a transfer mechanism 2 adapted to transfer containers laterally and progressively from a first conveyor 1 onto a second conveyor 3 along a line of transfer which is at an angle of not more than 60 DEG  to the forward direction of travel of the containers on said first conveyor; and a series of transverse members 34 carried upon said second conveyor 3 in axially spaced relationship to one another whereby a container transferred from said transfer mechanism 2 to said second conveyor 3 is adapted to be located between adjacent transverse members, the said transverse members having a planar surface generally parallel to the transport surface of said second conveyor 3 and adapted to receive and locate at least the trailing edge and the forward edge of the sleeves to be applied to consecutive containers carried by said second conveyor. <IMAGE>
Patent GB-2250645-A (GB)
Title: An electrical connector and an electrical terminal therefor
Inventor: HUTCHINSON JAMES DAVID
IPC: H01R31/06
Filed: 1991-10-31
Abstract: An electrical connector (2) for use in connecting first and second electrical conductors (L,T), optionally with a circuit component (D) interposed between the conductors, comprises an insulating housing containing a one piece stamped and formed electrical terminal (6). The terminal (6) has a tab receptacle (8) at one end, and a lead connecting portion (10) has a pair of slots (28) for receiving an electrical lead (L) to make connection with the lead wire (W) of the lead (L). Intermediate the receptacle (8) and the lead connecting portion (10) the terminal (6) has a component lead wire receiving portion (12) having slots (44) each for receiving a respective lead wire (W1) of the component (D), provided in plates (42) upstanding from a base. The base can be severed between the plates (42) by means of tooling inserted through openings (64 and 66) in the housing (4) to insert the lead wires (W1) of the component (D) into the slots (44). The severing of the base serves electrically to separate the receptacle (8) and the lead connecting portion (10) from each other to place the component (D) in circuit between the conductors (L,T). <IMAGE>
Patent GB-2264359-A (GB)
Title: Displacement measurement by detecting phase of optical signal
Inventor: STRACHAN JOHN SCOTT
IPC: G01S17/36
Filed: 1992-02-20
Abstract: Precision displacement measurements dependent upon the intensity or attenuation of a signal, as by use of Moire fringe gratings 5, are made using radar measurement techniques based on heterodyne frequency conversion with muitiple phase-locking. Light from a radio-frequency-modulated laser is directed through optical fibres 7, 8 and 9. Coiled optical fibres 8 and 9 introduce different phase delays and light from the three fibres is recombined in fibre 12 after attenuation by gratings 5. The phase of the combined light signal is then measured by high precision circuits involving ceramic filters and translated into position data. Machine tool control and strain gauge applications are described. The ceramic filter circuit generates a signal measuring rate of change of displacement as a by-product, thereby facilitating measurements involving rapid motion.   <IMAGE>
Patent GB-2256938-A (GB)
Title: Mirror having air supply and illumination
Inventor: HEARN CHRISTOPHER JOHN
IPC: A61B1/253
Filed: 1992-06-15
Abstract: A mirror construction includes a mirror 1 provided at one end of an elongate/handle 3 and means for directing a supply of air 5, 6, 7 and 9 across the face of the mirror 1. A mirror construction incorporates a light guide facility 14 by means of which light, of a desired chromatic value/ intensity, can be directed from a remote source 18 onto the mirror 1 in such fashion that during the use of the mirror the light follows the movements of the mirror whereby such light is always directable from the mirror towards an object it is desired to illuminate and/or view. An air heater 13 is also shown. <IMAGE>
Patent GB-2256785-A (GB)
Title: Providing fabric with limited elasticity for waistbands
Inventor: JEFFREY VICTOR
IPC: A41F9/02
Filed: 1992-06-19
Abstract: A waistband is formed of a non-elastic fabric to a surface of which is adhered elastic material arranged to cause slight retraction of the fabric without visible ruching or corrugation. Elastic material of zero shrinkage or for which the shrinkage is accurately known on heat treatment, can be adhered to the fabric by suitable procedures described. The extent of retraction is a few percent only, enough to cause the transverse threads, preferably the warp threads, of the fabric to come together. This few percent of extensibility, over the length of a waistband, is generally adequate to achieve good fit in spite of minor diurnal size variability, or of persons between standard sizes, thus reducing store refunds and exchanges.
Patent GB-2270258-A (GB)
Title: Safety Equipment for use in mines
Inventor: SMITH RONALD
IPC: E21F5/14
Filed: 1992-08-11
Abstract: A support for a passive water trough for use in mines comprises a frame for receiving a water trough, the frame being adapted to receive removable suspension means (28) which latter are arranged to engage with a support (14) such that the frame in use is suspended from the said support (14) by said suspension means (28). The support may be telescopic at either end thereof and can be fitted to a supporting tunnel (12) by means of a fitting at either end (16), (18) adapted to engage with the said supporting arch. The arrangement can be adapted for use in mines supported by roof bolts and not by the aforesaid arches by way of a bracket for supporting the passive water trough support, which is adapted to be connected to such a roof bolt.   <IMAGE>