baber/WOPTO huggingface dataset:
Patent GB-2191720-A (GB)
Title: Cyclone separator
Inventor: PRENDERGAST GAVAN JAMES JOSEPH
IPC: B04C5/04
Filed: 1985-07-23
Abstract: A cyclone separator (10) having an inlet with inner and outer profiles (84, 82), viewed in section transverse to the separator axis. This location of any particular point on the outer profile (82) is defined by a vector contained in a plane normal to the separator axis, and having its origin at a location (C) where the outer profile meets the adjacent inner circumference (86) of the separator. As the magnitude of the vector (T) increases, an angle  theta  between the vector (T) and a tangent (92) to the circumference (C) which passes through location (C) never decreases and never becomes less than negative 0.1 radian. The location of any particular point on the inner profile (84) is defined by a vector (U) having its point of origin at a location (E) where the inner profile or at least its projection meets the separator circumference (86). As the magnitude of vector (U) increases, an angle  zeta  between vector (U) and a tangent (93) to circumference (86) which passes through location (E) never decreases and never becomes less than negative 0.52 radian, at least for substantial magnitudes of vector (U).
Patent GB-2206707-A (GB)
Title: Light collecting device for flow cytometry
Inventor: WATSON JAMES VICTOR
IPC: G01N21/05
Filed: 1988-07-04
Abstract: A light collecting device for flow cytometry comprises an internally reflecting chamber for collecting light from a point source within the chamber over a solid angle of substantially 4 pi and directing all the collected light through an exit point at or adjacent the wall of the chamber. The chamber comprises an ellipsoidal surface extending over a solid angle of substantially 2 pi and a spherical surface extending over a solid angle of substantially 2 pi, the firsts conjugate focus of the ellipsoidal surface being coincident with the center of curvature of the spherical surface and the second conjugate focus of the ellipsoidal surface being at the center point of the spherical surface. A capillary bore passes through the first conjugate focus to accommodate a sample stream which is illuminated by laser light to produce fluorescence at the first conjugate focus.
Patent GB-2232540-A (GB)
Title: Electrical screen connectors
Inventor: HALEY ROY
IPC: H01R13/658
Filed: 1989-05-17
Abstract: A screen connector 9 for connecting to earth a screen 4 surrounding one or more insulated conductors 3 of a cable 2 is electrically conductive and has an inner sleeve portion 18 which surrounds the conductors 3 internally of an end part of the screen 4. An outer sleeve portion 20 of the screen connector 9 surrounds the end part of the screen 4 so that the end part of the screen is clamped between the inner and outer sleeve portions 18 and 20 to establish an electrical connection between the screen 4 and the screen connector 9 whilst permitting the conductors 3 to pass out of the end of the inner sleeve portion 18 for connection to a separate conductor connection 5. A plug-in connector portion 11 extends in the axial direction of the sleeve portions 18 and 20 and is plugged into an aperture 12 in an earthing plate 10 to establish an electrical connection between the screen connector 9 and the earthing plate 10 and to permit subsequent detachment of the screen connector 9 from the earthing plate 10. <IMAGE>
Patent GB-2222182-A (GB)
Title: Gas-phase treatment of workpieces; cleaning
Inventor: MOELLER RAINER
IPC: H01L21/3065
Filed: 1989-08-02
Abstract: Equipment for the gas-phase treatment of disc-shaped workpieces as illustrated in the Fig. consists of a cold-wall reactor having a water cooled outer, first wall system 1 defining an interior of the reactor, said interior being lined with a gas-permeable second wall system 8 which is arranged at a defined distance from the water-cooled outer, first wall system, the lining being located wherever the reactor parts are not required to be unlined for charging or plasma generation, extraction channels being provided at locations where part surfaces of the gas-permeable second wall system abut under an angle other than 0 DEG  or 180 DEG , the extraction channels 10 being connected to an extractor which is separate from the process gas extractor, separate gas feedlines 9 being provided for a flushing gas which connect the spaces between the outer, first reactor wall and the gas-permeable second reactor wall to a gas supply. The flushing gas feeds 9 and the flushing gas extraction which is formed as an annular gap and is located where the gas-permeable second wall system 8 forms an angle of 90 DEG , serve to produce a gas cushion on the inner wall on the gas-permeable second-wall system 8 which prevents deposition on the reactor wall. …<IMAGE>…
Patent GB-2237605-A (GB)
Title: Container for dispensing carbonated liquids.
Inventor: PARKER RODERICK MICHAEL
IPC: B67D1/04
Filed: 1989-09-25
Abstract: A container, such as a soda siphon, comprises a vessel (2) of blow-moulded plastics material, such as PET. A valve assembly (20), similar to those commonly used with aerosol containers, is received in a neck (6) of the vessel (2). A dispensing head (8) is fitted to the neck (6) over the valve assembly (20). The head (8) has an actuator element (30) which fits over an outlet tube (24) of the valve assembly (20). The actuator element (30) is hinged (at 34) to the rest of the dispensing head (8) and has a passageway (32) which communicates with an outlet nozzle (12). Depression of the actuator element (30) causes the valve to open, and the carbonated liquid flows through the outlet tube (24), the passageway (32) and the outlet nozzle (12). At least the vessel (2) and the valve assembly (28) (and possibly also the dispensing head (8)) may be disposable when the contents have been used. The actuator (30) may be a lever (Fig 4). A breakable bridge (38) and a cap (18) (Fig 1) prevent accidental operation of the actuator during transport and display. <IMAGE>
Patent GB-2236913-A (GB)
Title: Improvements in and relating to the mounting of electrical accessories
Inventor: PUGH DAVID BRIAN
IPC: H02G3/18
Filed: 1989-10-14
Abstract: A mounting system for an electrical accessory, such as a power socket (10), comprises a housing and a mounting means which may take the form of a linking arm (29) pivoted to the housing to enable the accessory to move between a retracted position and an extended position. The system may include a locking latch (12) to maintain the accessory in its extended position, and a lid (14) to cover the accessory. An electrical accessory such as a power telephone or computer socket (10), is mounted within a housing such as a floor box so as to be movable near to, flush with or beyond the housing opening. The socket (10) is normally held within the housing by a manually movable latch (24) carried by a socket-attached lid (14) and engageable with a housing flange (20). Release of the latch (24) allows springs and telescoping guides (6-8) to move the socket (10) to an exposed position in which manually releasable latches (12) hold the socket in place against the flanges (20). Alternatively, the socket is hinged to a pivoted arm and to the lid, and is held in a naked, exposed position by a strut. The socket may be removed completely from the housing. Cable guides (26) are provided. <IMAGE>
Patent GB-2229546-A (GB)
Title: Making reflective holographic optical elements
Inventor: RAMSBOTTOM ANDREW PAUL
IPC: G02B5/32
Filed: 1990-02-14
Abstract: Reflective holographic optical elements are made by exposing a photosensitive film (H) on a mirror (M). The apparatus incorporates compensating means which compensate for the effects of refractive index shift of the film due to refractive index variations during the exposure process. In one form of the apparatus, a hologram-mirror arrangement (HM) is placed on a table (T) on an accurately controlled stepper motor (SM) rotating stage (RS) so that the table (T) is progressively tilted. In an alternative arrangement the angle of the exposing radiation beam (IRB) is changed and directed on to the stationary hologram-mirror arrangement (HM). Where a tuneable holographic filter is required where the exposure angle varies over the hologram aperture angular shift is achieved by simple lateral and linear shift of the hologram (Fig. 5). The compensating means can also comprise an arrangement for progressively changing the wavelength of the exposing radiation beam (Fig. 6). 
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Patent GB-2231706-A (GB)
Title: Cassette safety device
Inventor: MOSHATOS LEON
IPC: G11B23/04
Filed: 1990-03-14
Abstract: A safety device 22 for a magnetic tape cassette 10 comprising an element having at least one formation 26 by means of which it is releasably attachable to a magnetic tape cassette 10 and arranged such that, when so attached, the cassette is prevented by said element from being operatively received in electronic apparatus for the recording of signals on to or for retrieval of signals from said tape cassette. <IMAGE>
Patent GB-2232419-A (GB)
Title: Process for the selective preparation of N4-substituted 1,4- diamino-2-nitrobenzenes
Inventor: SEIDEL WINFRIED
IPC: C07C271/08
Filed: 1990-05-25
Abstract: Carbamates (Ia), which are mostly novel, are selectively synthesised from compounds (II) by reaction with an equimolar amount of chloroalkyl chloroformate in a reaction medium which is purely or predominantly aqueous (</=20 wt.% organic solvents). …<??>Hair dyes (Ib) are obtained from carbonates (Ia) by treatment with a base.… …<IMAGE>… wherein R1 is H, halo, C1-4 alkyl or C1-4 alkoxy;… -CH(A)-CH(B)-D is (CH2)2Cl, (CH2)3Cl, CH(Me)CH2Cl or CH2CH(Me)Cl;… -CH(X)-CH(Y)-Z is (CH2)2OH, (CH2)3OH, CH(Me)CH2OH or CH2CH(Me)OH.
Patent GB-2233368-A (GB)
Title: Mineral working machine
Inventor: MASOVICH FELIX ZINOVIEVICH
IPC: E21C31/00
Filed: 1990-06-26
Abstract: An arm (6) carries a working member (2) rotatable about a horizontal axis. The working member (2) supports a driven gear (8) meshing with a drive gear (9). The driven gear (8) is provided with circumferentially spaced cutters (15, 16) arranged in a staggered fashion on its side faces and inclined with respect to its axis of rotation. The cutting edge of each cutter (15, 16) is located in a plane of rotation intersecting the teeth of the driven gear and protrudes beyond the teeth. <IMAGE>
Patent GB-2237118-A (GB)
Title: Film initial-advance apparatus for a camera
Inventor: MURAMATSU KATSUJI
IPC: G03B17/30
Filed: 1990-09-14
Abstract: A film-initial-advance apparatus advances, after a film cassette 10 is loaded, a film leader portion 9b protruded from the film cassette toward a film take-up spool 11. A drive lever 20 moves as the film take-up spool 11 rotates. The drive lever 20 causes a film threading member 18 to reciprocally and intermittently move along a film passageway. The film threading member 18 engages with a perforation 9a of the film leader portion 9b to intermittently advance the film leader portion. When the film leader portion 9b is fully captured by the film take-up spool 11, the drive lever 20 may be pushed outside in the axial direction of the film take-up spool by a taper member 23 along rotary shaft 38, thereby disengaging the drive lever 20 from the film take-up spool 11. <IMAGE>
Patent GB-2248164-A (GB)
Title: Press roll
Inventor: COLLINS BRIAN JAMES DOUGLAS
IPC: A01B73/04
Filed: 1990-09-19
Abstract: A press roll comprises a main frame (1) and a side frame (2A) movably connected thereto. The main frame includes a row of rotatable press-roll tools mounted for rotation about a first common axis and the side frame includes a row of rotatable press-roll tools mounted for rotation about a second common axis parallel to but offset from the first common axis. The side frame (2A) is movable from a stowed position to an operative position in which it extends alongside the main frame with a frame member (11A) of the side frame disposed alongside a frame member (12A) of the main frame. Said frame members have similar double cranked portions (11C, 12C) in a region between the first and second common axes, such that the parts of the frame members in the region of the first common axis are offset from the parts of the frame members in the region of the second common axis. <IMAGE>
Patent GB-2241714-A (GB)
Title: Lightweight cylinder construction
Inventor: WHITELEY JOHN
IPC: F16J10/00
Filed: 1990-12-20
Abstract: A modular cylinder (e.g. textile cards) comprises a plurality of (24) interconnected modules 1 arranged in a circular array. Each module is hollow and has spaced wall portions 2, 3. Each includes a tongue 6 to engage a groove 7 of its neighbour and each either has a camming ramp 9 to engage a camming ramp 8 of its neighbour, or a filler rod 22 inserted between adjacent modules at each interface. The cylinder includes end plates. Where ramps 8, 9 are provided. (n- 1) of the modules are placed into engagement to define an almost complete cylinder and then strained in a radially outward direction to provide gap for the final module 1 which is inserted longitudinally into the gap. Where rods 22 are used, all of the n modules are loosely assembled and then rods 22 are inserted to pre-stress the cylinder. The portion 2 of each module has a biconvex cross-section whereby surface 13 thereof defines a sector of the cylindrical surface of the cylinder but the bonding axis of section 2 is straight and parallel to the tangent to surface 13 at the centre of section 2. At least one reinforcing hoop may be placed inside the cylinder to increase its rigidity. <IMAGE>
Patent GB-2241711-A (GB)
Title: Continuous open chemical vapour deposition
Inventor: DARLING JR PHILLIP H
IPC: C23C16/54
Filed: 1991-03-04
Abstract: A gravity assisted open system is employed for coating of continuous refractory substrates with a highly uniform layer of graphite or other such as boron doped carbon material. Pyrolytic dissociation of precursor gases in an inert atmosphere flowing downwardly, countercurrent to the upward direction of transport of the substrate material, in a reaction chamber after the substrate has passed through a lower chamber and before passing to an upper chamber promotes condensation of the coating material on the moving substrate in a homogenous coating. The open configuration of the system as illustrated in Fig 1 allows continuous feed and takeup of substrate material to reduce startup and shutdown transient conditions affecting uniformity of the coating. The carbon coated product has enhanced semiconductor properties. <IMAGE>
Patent GB-2246825-A (GB)
Title: An automatic brake adjuster for simplex and duo-duplex brakes
Inventor: RUPPRECHT BERND
IPC: F16D65/56
Filed: 1991-07-24
Abstract: An automatic brake adjuster includes first and second ends (10, 12) connected respectively to a screw (14) and an element (18); a nut (16); and a sleeve (32) coupled at one end to the nut via an arresting spring (44) and at the other end via a one-way drive (34) to a bush (26). On relative axial movement of the ends, the bush will be rotated via a pin and slot connection (28, 30). On brake release, the ends will be forced together against bias of spring (20), and, if brake wear has occurred, the bush will rotate the sleeve (32) and the sleeve will rotate the nut relative to the screw to effect adjustment. Resetting is achieved by manual rotation of the nut (16) relative to the sleeve, and spring-biassed pin (59) prevents rotation of the nut during brake application. <IMAGE>
Patent GB-2248539-A (GB)
Title: "Soil lifting harvesters"
Inventor: WHITSED JOHN WILLIAM
IPC: A01B63/114
Filed: 1991-08-23
Abstract: A method and apparatus for soil lifting, particularly applicable to two-row potato harvesters and other root crop harvesters which reduces downward loading on crop rows by the depth-controlling diabolo rollers 22, 24. The rollers are isolated from downward loading and used to generate height and tilt signals for a servo system 40, 42 which controls the height and tilt of the frame 14 on which the two row units are mounted. By avoiding the need to have the row units free for vertical float during work, weight transfer to a tractor drawing the apparatus is effected. <IMAGE>
Patent GB-2250220-A (GB)
Title: Reclamation of additives from used sand
Inventor: WILHELM LUDWIG
IPC: F26B3/347
Filed: 1991-11-21
Abstract: A process is proposed for the separation of the bentonite and carbon carrier particles from the dust obtained mechanically during used sand reclamation. Dust is collected in a cyclone 2 in a first phase. It is then removed from the cyclone and dried in a drier 4, the dried dust being conveyed in a second phase to a sifter 10. The bentonite and other reusable material is drawn off in a duct 14 while the quartz dust is removed via a discharge 12. <IMAGE>
Patent GB-2257603-A (GB)
Title: Synchronous digital hierarchy data transmission timing
Inventor: FERGUSON STEPHEN PATRICK
IPC: H04J3/00
Filed: 1992-06-24
Abstract: A synchronous digital hierarchy (SDH) data transmission system is synchronised to a primary rate clock, such as a 2 Mbit timing clock, by translating the 2 Mbit timing to a bearer rate by the use of rate multiplication means, transmitting the bearer rate signal through the system by synchronising successive equipment in a network path 38 and subsequently deriving a timing signal back at the original frequency from the bearer. Transmission may occur through the system at transport level, rather than virtual container level so phase accuracy can be maintained without pointer adjustments. Standby timing 39 may be available. <IMAGE>
Patent GB-2257820-A (GB)
Title: Position control system for webs
Inventor: BOYCE LESLIE GRAHAM
IPC: G11B15/62
Filed: 1992-07-17
Abstract: A web position control system, e.g. for controlling the position of a moving tape 16 past an optical or magnetic recording head 30, has a pair of outer bearings 32, 34 which constrain the web to follow a linear path which passes symmetrically through gaps between two pairs of air bearings 38, 38. Thus variations in tension do not cause lateral displacement. An air bearing may have a guide surface whose distance from the tape increases in the width direction of the tape, so that there is a wedge-shaped gap 28: Fig 2b with a pressure differential. This may urge the tape so that an edge 26 abuts a guide flange 24. This can provide edge guidance which is more delicate and less damaging than the known use of a resiliently urged opposing flange. <IMAGE>
Patent GB-2256046-A (GB)
Title: Assay for adrenal autoantibodies useful in the diagnosis of addison's disease
Inventor: FURMANIAK JADWIGA
IPC: G01N33/68
Filed: 1992-07-31
Abstract: The adrenal autoantigen preferably used in the assay is characterised as a protein obtainable from the microsome fraction of the adrenal gland, having a molecular weight of about 50,000 to 60,000 (preferably 55,000) and antigenic towards adrenal autoantibody. The protein in native, recombinant or modified form as well as fragments thereof comprising an epitope for adrenal autoantibody and antibodies against the protein or fragments thereof are preferably used in a method and kit for detecting adrenal autoantibodies. The autoantigen is preferably steroid 21-hydroxylase. The isolation of adrenal autoantigen-specific T cells, and the production of steroid 21-hydroxylase by yeast cells is also disclosed.
Patent GB-2258178-A (GB)
Title: Abrasive belt grinding machine
Inventor: PHILLIPS JAMES D
IPC: B24B21/06
Filed: 1992-09-23
Abstract: Apparatus for grinding to predetermined contour a plurality of eccentric cams on a cam shaft, comprising abrasive belts (58) supported adjacent the cam shaft for linear movement such that the belts grind the peripheries of the cams. The belts are guided along a variable path according to the cam contour desired by shoes (72) engaging the belts at their points of contact with the cams. The shoes are mounted on actuators (76) powered by motor units (78) controlled by CNC controllers. A coolant distributor (130) for each belt is capable of flexing the belt to compensate for shoe movement. Each coolant distributor comprises a chamber 132 open on one side through which the belt passes and to which pressurised coolant is supplied through an inlet 158. <IMAGE>
Patent GB-2273931-A (GB)
Title: Mutant polypeptides
Inventor: VARHILL KATHERINE
IPC: C12N15/56
Filed: 1992-09-28
Abstract: Disclosed is a biologically functional altered polypeptide, comprising fewer amino acids and being reduced in size compared with the unaltered polypeptide, wherein the altered polypeptide lacks at least part of a loop region which is present in the unaltered polypeptide and a method of producing said biologically functional altered polypeptide.
Patent GB-2264059-A (GB)
Title: Room deodoriser
Inventor: DE ATH ROGER MICHAEL
IPC: A61L9/12
Filed: 1992-11-27
Abstract: A room deodoriser comprises a hollow container with a vaporisable deodorant within. The container has one or more vents 5 and a flexible part 2 which may be squeezed and released to provide forced ventilation and thus enhanced vaporisation. <IMAGE>
Patent GB-2267963-A (GB)
Title: Obscuration sensor
Inventor: APPLEBY DAVID
IPC: G08B17/103
Filed: 1993-06-02
Abstract: A sensor for sensing the presence in a medium of species which absorb or scatter radiation, such as smoke particles in air, by means of changes in the attenuation of radiation transmitted through the medium, in which visible or infra-red radiation is transmitted from sources 1 and 2, along dissimilar paths 3 and 4, to a receiver 5. A control means 6 causes the sources to emit and accurately controls the ratio of the emitted energies. The signal received from one source is subtracted from the signal received from the other source in a means 7. The difference signal is used by the control means as the basis for controlling the ratio of the energies emitted by the sources. Changes in the absorption co-efficient are measured by sensing and analysing changes in the difference signal and/or changes in the ratio of the emitted energies. The sources 1 and 2 may be pulsed and emit at different times, and the paths 3 and 4 may be of different lengths, carry light of different wavelength, or be exposed to different amounts of the absorbing or scattering species. <IMAGE>
Patent GB-2279105-A (GB)
Title: Friction hinge
Inventor: LEUNG HON HUNG
IPC: G06F1/16
Filed: 1993-06-16
Abstract: A friction hinge for pivotally interconnecting two parts of an apparatus, comprises a shaft 1 having a plurality of plate-like members 11, 14, 17 and wave washers 10 mounted thereon to form clutch assemblies secured on the shaft by a nut 18. One of the plate-like members 11 is rotatable relative to the shaft 1 and another plate-like member 14 is fixed relative to the shaft. A lug and notch provided on the members 11 and 14 respectively interengage to release the frictional force at one orientation of the members 11, 14 relative to each other, thereby allowing substantially free relative rotation of the apparatus parts over a predetermined angle of rotation at this orientation of the members. In this way, by releasing the frictional force, precise closing alignment of the two apparatus parts can be more easily achieved. The lug and notch may also interengage at other orientations of the members 11, 14 in which case a locking effect is achieved. <IMAGE>