baber/WOPTO huggingface dataset:
Patent GB-2151835-A (GB)
Title: Magnetic head device
Inventor: KAMIMURA MICHIO
IPC: G11B5/49
Filed: 1984-09-17
Abstract: A magnetic head device includes a magnetic head (1,2) mounted on a head-mounting member (3) with a gap provided therebetween. A vibration damper (5) is inserted in the gap for damping any microvibration transmitted from the head-mounting member (3). Magnetic head (1,2) may be a composite structure of a recording/reproducing head (1) and an erasing head (2). Head-mounting member (3) may be a conductor at ground potential. Either one of head (1) and head (2) may be secured to the head-mounting member (3), and the gap may be provided between the other head and the head-mounting member (3). Magnetic head (1,2) may be electrically connected to member (3) through an electrically-conductive spacer for forming the gap. Damper (5) may be a silicone resin elastomer. <IMAGE>
Patent GB-2168432-A (GB)
Title: Adjustable guide vanes for centrifugal compressors
Inventor: ARKHIPOV VLADIMIR VIKTOROVICH
IPC: F04D29/46
Filed: 1984-12-12
Abstract: The compressor comprises a housing (1) having an axial suction tube (2) communicable at one end with a suction chamber (3) and at the other end with an impeller (4). A flow guide (5) for guiding a fluid such as natural gas comprises a disc (15) having a plurality of guide vanes (16) arranged uniformly about its periphery. The guide vanes (16) are fixedly secured on the disc which is connected to a piston (22) of a servomotor (20) to reciprocate the disc along the longitudinal center-line of the compressor. The guide vanes (16) are therefore capable of displacement in an annular axisymmetric passage (17) defined by the wall of the suction tube (2) and a separating wall (8). <IMAGE>
Patent GB-2158143-A (GB)
Title: Pipe clip for brake pipes
Inventor: ANDRE GUY
IPC: F16B5/06
Filed: 1985-04-10
Abstract: A pipe clip comprising a flexible, yet relatively stiff U-shaped holder having two upwardly extending sidewalls with each having a catch element at its upper end and an auxiliary holder open at the top and of relatively softer elastic material. The auxiliary holder receives the pipe and is pressed down into the open top of the U-shaped holder where it is held in place by catch elements of the U-shaped holder and closed about a major portion of the periphery of the pipe. The auxiliary holder also has outwardly extending projections that initially engage behind the catch elements of the U-shaped holder to hold the auxiliary holder in position for receipt of the pipe before it is pressed and locked into place in the U-shaped holder.
Patent GB-2157748-A (GB)
Title: Lock mandrel and running tool assembly for well
Inventor: HIGGINS BRYAN D
IPC: E21B23/02
Filed: 1985-04-24
Abstract: Well tools for running and setting a well safety valve include a lock mandrel M for releasably locking the valve at a no-go landing nipple in a well bore and a running tool for running and setting the lock mandrel. The lock mandrel includes a tubular body 30,31 provided with a no-go ring, locking dogs 32 on the body, and an expander sleeve 33 movable upwardly in the body for expanding and locking the dogs. The running tool (R) includes a tubular core having an end engageable with an operating tube of the safety valve, an upper latch assembly for engaging the lock mandrel body to couple the running tool with the lock mandrel, a lower latch assembly for operating the expander sleeve of the lock mandrel to expand the mandrel locking dogs, and a head for connecting the running tool in a wireline tool string. The running tool has locking features which apply a force from a spring of the safety valve to the upper latch assembly to lock the running tool with the lock mandrel. A safety valve is connected to the lock mandrel which is coupled with the running tool. The assembly is lowered in a well to a no-go landing nipple. A control fluid pressure to the safety valve relieves the valve spring force from the running tool core and the running tool is pulled upward expanding the lock mandrel dogs and releasing the running tool from the lock mandrel. <IMAGE>
Patent GB-2167311-A (GB)
Title: Cue bridge or rest
Inventor: FRANCIS GRAHAME VINCENT WILLIA
IPC: A63D15/10
Filed: 1985-06-13
Abstract: The cue bridge or rest, which can be positioned stably on a horizontal surface, provides four cueing positions at different heights (3 and 5: 4; 2 and 6; 1 and 7) above the surface, the respective heights being 22+/-5 mm, 32+/-5 mm, and 104+/-10 mm, there being a difference of at least 5 mm between any two of the four given heights. With regard to positions 1 and 7 the bore of each groove is 104+/-10 mm from the opposite face of the block, the bridge being placed with that face on the table surface when it is desired to use one of these positions. The block may have a threaded hole 8 for attachment of a "screw-in" rod which may itself have "push-in" or "screw-in" extensions. <IMAGE>
Patent GB-2163530-A (GB)
Title: Ball valve
Inventor: WILLIAMS PETER CHARLES
IPC: F16K5/06
Filed: 1985-07-16
Abstract: A soft-seated fire-safe ball valve includes a pair of seat assemblies each comprising a seat ring (102), at least one ring (102) being cooperatively associated with a weir ring (130) for inhibiting extrusion of the seat ring (102) such that the seat assembly operates to maintain a fluid-tight seal upon partial destruction of the elastic seat ring due to elevated temperatures. <IMAGE>
Patent GB-2165573-A (GB)
Title: Windows
Inventor: PIPER KENNETH WILLIAM
IPC: E06B3/40
Filed: 1985-10-10
Abstract: A window comprises an outer frame 1, an upper inner frame 2, and a lower inner frame 3, pivotally mounted in the outer frame 1 and movable between an open position and a closed positions in which the base 2b of the upper frame 2 bears against the top 3b of the lower frame 3. Thus in the closed position the window has an outward appearance similar to a conventional sash and casement window. <IMAGE>
Patent GB-2166280-A (GB)
Title: Semiconductor thermal neutron detector and thermal neutron detection method
Inventor: CEROFOLINI GIANFRANCO
IPC: H01L25/04
Filed: 1985-10-18
Abstract: In order to detect thermal neutrons, a semiconductor device such as a diode or a DRAM is provided with a region 10 doped with nuclei having a large capture cross section for thermal neutrons, such as the <10>B boron isotope. The interaction of the thermal neutrons (30) with the <10>B isotope produces an alpha particle and a lithium nucleus (12) which can be detected. By reverse-biasing (7) a diode, the current produced by the motion of the fragments can be detected (8). Alternatively, any alpha particle detector can be used with an appropriate configuration of selected high thermal neutron capture cross-section materials to detect thermal neutrons. <IMAGE>
Patent GB-2183590-A (GB)
Title: Decorated carrier for bottles
Inventor: PANAZZOLO ALDO
IPC: B65D71/50
Filed: 1985-11-25
Abstract: A single piece plastics carrier for a plurality of filled and capped bottles in which the neck of each bottle to be carried by the carrier is received in an aperture 21 in the top panel of the carrier. The carrier is provided with a skirt 13 which extends generally downwardly from the top panel, also tapering somewhat outwardly in the preferred embodiment. Substantially more than one-half of the vertical extent of at least one side of the carrier, and preferably at least a pair of opposed sides of a four-sided carrier, comprise flat surface areas 18,20 and decorative material is placed on the flat surface area(s) by printing or by the attachment of labels thereto. <IMAGE>
Patent GB-2185848-A (GB)
Title: Laser apparatus
Inventor: MAITLAND DR ARTHUR
IPC: H01S3/20
Filed: 1986-01-28
Abstract: Laser apparatus includes an alkali metal or an alkaline earth metal dissolved in liquified ammonia gas and is contained within a laser vessel 1 which is prepared to form a laser active medium. The solution is irradiated with radiation from flash tubes 7 and 8 to pump it. In another embodiment (not shown) the pumping is achieved by irradiating the solution with electrons. <IMAGE>
Patent GB-2186955-A (GB)
Title: Armour
Inventor: SEYFANG GEORGE R
IPC: F41H5/18
Filed: 1986-02-20
Abstract: Armour such as that used to shield military vehicles includes a disc 1 mounted for rotation between a structural wall 2 and an outer skin 3, with a motor 6 arranged to drive the disc. In a preferred embodiment the disc 1 decreases in thickness from the centre to the rim. A number of overlapping discs 1 may be used, with neighbouring discs rotating in opposite senses. <IMAGE>
Patent GB-2175357-A (GB)
Title: Axial ratchet device
Inventor: NEALE MICHAEL JOHN
IPC: F16D41/36
Filed: 1986-04-18
Abstract: An axial ratchet device in which viscous drag surfaces 10, 11 between a driving member 1 and a ratchet member 3 which in addition to being engageable by means of axial ratchet teeth 5, 6 with the driving member 1 is connected to the driven member 2 by means permitting limited angular displacement resulting in limited axial displacement, operate to retain the ratchet and driving members out of engagement on over-run of the device. The ratchet member 3 may alternatively be engageable with the driven member 2 by means of ratchet teeth in which case the aforesaid connection will be between the ratchet member and the driving member 1. <IMAGE>
Patent GB-2190002-A (GB)
Title: Board game
Inventor: LAM CHU HING
IPC: A63F3/00
Filed: 1986-05-08
Abstract: A game comprising a substantially square board having a playing circuit consisting of a plurality of sequential segments (1, 11-18, 2, 21-28, 3, 31-38, 4, 41-48) marked around its edges, a distinctive playing piece for each player, a pair of dice for determining the number of segments each playing piece is to be moved by a player when it is his turn to play the game, a set of cards awarded to players meeting certain requirements during the course of the game, a set of tokens denoting values which are allocated to each player at the start and during the course of the game and a plurality of distinctive markers for each player. Some of the segments (11-17, 25, 26, 33-37, 41, 45, 46) on the board represent properties which can be acquired by a player when it is his turn to play while other segments (18, 21, 27, 28, 31, 32, 38, 41) on the board denote penalties which must be paid by a player whose playing piece lands on one of these other segments. The board is further marked with areas (5) for each player, each area (5) being subdivided into sections (6) for indicating the progress of a player through the game by means of moving a player's distinctive marker along successive sections (6) in said area. <IMAGE>
Patent GB-2192712-A (GB)
Title: Fixative
Inventor: MCDERMOTT JOSEPH
IPC: G01N1/30
Filed: 1986-06-10
Abstract: A histology fixative comprises from 2.75-3.25% w/v of potassium acetate (anhyd.) and from 2.75-3.25% (w/v) of potassium nitrate (anhyd.) in an aqueous solution comprising a quantity of formaldeyde or glutaraldehyde and from 0.25-0.30% (w/v) of picric acid. A cytology fixative can be prepared from the histology fixative by mixing it with 50% v/v absolute alcohol.
Patent GB-2191788-A (GB)
Title: Yarn creel
Inventor: FARWELL ROY
IPC: B65H57/14
Filed: 1986-06-19
Abstract: A creel for elastomeric yarns 2 comprises means, such as support rollers 6, for rotatably mounting individual yarn packages 4, and a plurality of tensioning devices 5 operative for tensioning of the yarns 2 individually or in groups as the yarns are drawn from the creel by a yarn consuming machine. The tensioning devices 5 conveniently comprise tensioning wheels 14 around each of which a yarn 2 passes, and which are individually or in groups rotatably coupled with braking means in the form of a band brake comprising a brake wheel 15 around which an adjustably tensioned friction cord 17 passes. Each wheel 14 has a yarn-guiding peripheral groove of sinuous shape. The creel may feed yarns to a weaving or knitting machine. <IMAGE>
Patent GB-2192150-A (GB)
Title: Composite cutting guide apparatus
Inventor: CLARKE FRANCIS B
IPC: B27G5/02
Filed: 1986-07-01
Abstract: A cutting guide apparatus has detachable prismatic sections 20, for example triangular sections, adjustably attached to a base 10 in a selected arrangement. This enables a user to make uniform, accurate and repeatable cuts through lengths of materials, by hand, using conventional hand tools at selected angles to the line of the material held or secured in the apparatus, for example the cutting of timber at 90 degrees or at 45 degrees. The apparatus may accommodate different thicknesses of cutting blade. The prismatic sections may be plastics or wood and bolted to a fibre board base and the sections 20 may be of different heights to accommodate different thicknesses of workpiece. <IMAGE>
Patent GB-2179172-A (GB)
Title: Optical-fibre filters
Inventor: BOUCOUVALAS ANTHONY CHRISTOS
IPC: G02B6/255
Filed: 1986-07-25
Abstract: An optical-fibre filter is produced by elongating a depressed-cladding or coaxial optical fibre (10) so that a portion held between clamps (16, 18) becomes tapered, at the same time monitoring (24) the power transmitted through the fibre from a single-frequency laser source (12). The drive to the clamps is stopped when the power reaches a pre-selected point for the desired filter characteristics. <IMAGE>
Patent GB-2182375-A (GB)
Title: Method of constructing an offshore structure
Inventor: HANSEN FRODE JOHAN
IPC: E02B17/00
Filed: 1986-11-04
Abstract: In constructing and installing a tripod supported on a foundation on the sea bed, the foundation (15, 16, 17) is fabricated, installed and hydraulically pre-loaded, and three positively buoyant tubular concrete columns (10, 11, 12) are fabricated and floated to the site. There each column is ballasted to reduce its positive buoyancy, has a cable attached thereto and is pulled down at one end towards the foundation structure (Fig. 5). The heads of the columns (15) are then connected together temporarily above sea level and all three columns are then pulled down together onto their bearing positions on the foundation structure (Figs. 6, 7), whereafter the columns (10, 11, 12) are joined together permanently below the water level. The topside structure comprising a deck (26) and a supporting structure (28) is then added to the tops of the columns. A non load bearing shaft (30) protects drill strings etc. <IMAGE>
Patent GB-2183142-A (GB)
Title: Improvements in or relating to marking devices
Inventor: STEADMAN MICHAEL
IPC: A43D8/26
Filed: 1986-11-12
Abstract: The invention relates to a marker for use in the manufacture of footwear, which comprises two confronting plates (2,4). The first plate (2) includes slots (8) in which are set lengths of marker strip (12) in a desired pattern. The second plate (4) has slots (14) corresponding to the pattern and the marker strips (12) project from the first plate (2) into the slots (14). A circular frame (20) supports an ink-bearing flexible sheet (18) which is sandwiched between the plates (2,4). When pressed into contact with an upper. the marker will leave an inked impression of the pattern. A fresh ink-bearing surface may be obtained periodically by moving the frame (20) between the plates in a rotary manner. The marker strips 12 protrude from plate 2 by a given distance and the second plate 4 has a thickness which is less than the given distance. A raised portion 16 on plate 4 engages and correctly locates the upper 10. The sheet 18 is a fine gauge textile material. <IMAGE>
Patent GB-2199702-A (GB)
Title: Overhead optical transmission system
Inventor: WHITE CHRISTOPHER JOHN
IPC: G02B6/44
Filed: 1987-09-18
Abstract: In an overhead optical transmission system in which a plastics sheathed optical cable is indirectly suspended from, and is freely supported in long lengths between, towers by metal fittings, risk of failure of the plastics sheathed optical cable due to the existence of a longitudinal electric field in the vicinity of a tower is reduced by providing at least those parts of each metal fitting which are in contact with the plastics sheath of the optical cable with a coating 8, 9 of a wear-resistant, electrically insulating material. Preferably, an electrically insulating surface glaze overlies the coating to seal any pores. The coating is preferably a plasma of flame-sprayed alumina or other suitable refractory material. <IMAGE>
Patent GB-2197106-A (GB)
Title: Monitoring and control system
Inventor: DOUGLAS CHRISTOPHER
IPC: G08B23/00
Filed: 1987-10-30
Abstract: A monitoring and control system for electrical or electronic circuits, comprising a portable signal emitter which can emit signals to a receiver, carrying instructions for it to override the normal operation of an automatically controlled device. The emitter preferably emits ultrasonic signals, which optionally may act not only on the receiver but also carry signals already interpretable by the controlling device, coding or other signals to initiate different actions. Especially it can emit a signal which defeats a time delay circuit, for example in an automatic lighting system in a store, to keep it on while the user is in the area. The portable signal emitter can be secured to the user, for example to clothing by a clip, or be fixed temporarily in the monitored area so that it will not encumber the user while in the monitored area, and may incorporate a timer. <IMAGE>
Patent GB-2248310-A (GB)
Title: Thermal imaging apparatus
Inventor: MOORE WILLIAM THOMAS
IPC: G02B23/12
Filed: 1987-12-09
Abstract: In a thermal imaging apparatus comprising an afocal telescope 2, an oscillating mirror 4 for effecting horizontal scan and a linear detector array 10 extending across the image in the vertical direction, a relay optical system 8 is positioned between the oscillating mirror and a detector lens so that pupils are formed at the oscillating mirror and the detector lens, thereby avoiding problems of pupil scan. <IMAGE>
Patent GB-2201176-A (GB)
Title: Pipe centraliser
Inventor: DREYFUS WILFRIED
IPC: E21B17/10
Filed: 1988-02-19
Abstract: A centering cage for a cylindrical part has externally spring elements 36 which are connected with at least one support ring 32, 34 surrounding the structural part 10 to be centred. In order, while maintaining required centering forces, to lessen the resistances acting against insertion into pipes, bore-hole walls or the like, to reduce the cross-section impeding the flow of media and to reduce the tendency to fatigue of the springs, the spring elements 36 are arranged in respective planes which are inclined at an angle to the planes in the radial and axial direction to the support ring. <IMAGE>
Patent GB-2203974-A (GB)
Title: Apparatus for manufacturing a crown wheel cam
Inventor: TRUFITT MARK
IPC: B24B21/00
Filed: 1988-04-11
Abstract: A tapered former 42 is provided around which an abrasive belt 41 is driven so as to grind the correct cam surface on a swash plate (60) for use in a crown wheel cam gearbox. After each cam surface is produced on the periphery of the swash plate the plate is rotated (62) to a new position and the process repeated until the swash plate is complete. The belt may be a continuous loop and may also be tapered for engagement over the tapered former. Alternatively the belt may be in the form of a spool arrangement (81, 82 Fig. 8 not shown) such that abrasion is continuously carried out by fresh belt to ensure accurate forming. In a further arrangement the belt (111, Fig 11 not shown) is oscillated by means of an electromagnetic vibrator (115) with fresh abrasive belt being supplied by indexing the belt as required. <IMAGE>
Patent GB-2208558-A (GB)
Title: Security system
Inventor: LINAKER DEREK
IPC: G08B13/08
Filed: 1988-07-14
Abstract: A sensor in a burglar alarm system comprises an electrically conducting bridge 22 secured to an openable window light 24, electrically conducting leads 25 connected or connectible with the opposite ends of said bridge and anchored securely at a position 26 spaced from said bridge with a loop thereof therebetween whereby the circuit including said leads will be broken if the light is opened by more than a predetermined extent. The bridge 22 may be mounted on a piezoelectric break glass detector. <IMAGE>
Patent GB-2229120-A (GB)
Title: Horse shoe making apparatus and method
Inventor: CRAIG CHARLES STUART
IPC: B21K15/02
Filed: 1989-03-17
Abstract: Metal strip is initially braced in a clamp, and a plurality of holes are pierced in the strip, either sequentially or simultaneously. Subsequently, the strip is formed into a horse shoe shape by forcing the strip around a forming head 2 or mandrel mounted on a shaft 1, wherein the means for forcing the metal strip around the forming head includes two levers or handles 6-8 which are rotatable about the shaft 1 and have arms 9 engagable with opposite ends of the metal strip such that movement of the handles moves the ends of the metal strip about the axis of the forming head 2, and wherein the metal strip is supported by support means 4, during the forming process. The supports 4 are height adjustable to provide for different shoe sizes. <IMAGE>
Patent GB-2223500-A (GB)
Title: Fluorine-containing copolymer useful as paint vehicle
Inventor: KOISHI TOSHIO
IPC: C08F214/18
Filed: 1989-09-13
Abstract: A copolymer comprises 25-75 mol% of a fluoroolefin such as CTFE, 10-70 mol% of a combination of a fatty acid vinyl ester having not more than 4 carbon atoms in the acid part and at least one other carboxylic acid vinyl ester which has a larger number of carbon atoms and is selected from aliphatic and aromatic carboxylic acid vinyl esters, 3-40 mol% of a hydroxyl-containing ally ether such as ethylene glycol monoallyl ether and 0-20 mol% of a carboxyl-containing monomer such as vinylacetic acid. The copolymer has a number average molecular weight of 3000 to 10000. The copolymer possesses properties characteristic of fluororesins, is soluble in organic solvents including aromatic solvents low in polarity, such as xylene, and is curable at relatively low temperatures. A solution of the copolymer is useful as a liquid vehicle of a paint. Optionally, a portion of the vinyl ester component of the copolymer is replaced by an alkyl vinyl ether.
Patent GB-2223969-A (GB)
Title: Dispensing apparatus for molten metal
Inventor: WILFORD COLIN FORSTER
IPC: B22D41/015
Filed: 1989-10-12
Abstract: Dispensing apparatus (1) for molten metal comprising a vessel (2) receiving, in use, a main body (3) of molten metal and having dispensing valve means (6, 7) operable to dispense a flow of molten metal therefrom, a container (9) defining a chamber (15), means (24) for supporting the container (9) such that an open mouth (16) thereof is immersed in the main body of molten metal to define a head space (19) above the molten metal in the chamber, suction means (13) connected to the container (9) and operable to reduce pressure in the head space (19) so as to draw molten metal from the vessel into the chamber (15) and an induction heating coil (21) operable to heat molten metal in the chamber above the level (17) of the main body (3) of molten metal, including sensing means (20) sensing the level (17) of the main body of molten metal, the sensing means being connected to regulating means (43, 14, 28) operable to regulate the pressure in the head space (19) to thereby regulate the volume of molten metal in the chamber (15) such that the level of the main body (3) of molten metal is maintained substantially constant in the vessel (2) during the dispensing of molten metal by the valve means (6, 7). Several embodiments, differing in detail, are described. <IMAGE>