baber/WOPTO huggingface dataset:
Patent GB-2207819-A (GB)
Title: Lampholder
Inventor: DOHERTY PATRICK JOHN
IPC: H01R33/96
Filed: 1987-02-02
Abstract: A safety lampholder for receiving a bayonet bulb, the lampholder comprising a body defining slots each of which has two mutually inclined limbs along which the bayonet pins of a bulb slide during insertion and removal of the bulb, a contact carrier mounted within the body and movable relative to the body between first and second positions, power supply terminals supported by the body and defining surfaces facing the carrier, direct access to the terminal surfaces being obstructed by the contact carrier, and contacts supported by and extending on both sides of the carrier. The contacts move with the carrier so as to be spaced from the terminal surfaces when the carrier is in the first position and so as to bear against the terminal surfaces when the carrier is in the second position. The carrier comprises a sleeve extending to the body slots and defining slots for engagement with the pins of an inserted bulb. The body slots and sleeve slots are arranged such that as a bulb is inserted its pins slide along one limb of the body slots and enter the sleeve slots and then slide along the other limb of the body slots whilst bearing against the edges of the sleeve slots so as to rotate the carrier with the bulb to the second position. As a bulb is removed its pins slide along the said other limb of the body slots whilst bearing against the edges of the sleeve slots so as to rotate the carrier with the bulb from the second position and then slide along the said one limb of the body slots and out of the sleeve slots to leave the carrier in the first position.
Patent GB-2211967-A (GB)
Title: Concurrent record access database system
Inventor: LEVINE FRANK ELIOT
IPC: G06F12/00
Filed: 1988-09-23
Abstract: A data base system on a computer uses an index tree containing record keys which reference associated records in the data base. The tree, which comprises a root node extending through intermediate nodes to leaf nodes, provides concurrent accesses to a plurality of users. When changes are to be made to the key structure, action has to be taken to prevent users, other than the user making the change, from corrupting the data or receiving corrupted data. To do this, when one user is inserting or deleting a key and its associated record, all accesses to a node being traversed by this user and the immediately traversed mode are limited to read accesses by other users. At the leaf node, all accesses by others to the key and record being added or deleted are prevented together with accesses to the next successively located record key and its associated record. After the deletion or insertion, the access limitations are removed.
Patent GB-2212464-A (GB)
Title: Gear drive apparatus for karts
Inventor: THOMSON ALAN REID
IPC: B60K5/10
Filed: 1988-11-16
Abstract: Conventionally karts are driven by chain drives. Such arrangements require constant adjustement and have a short working life. Gear drive apparatus for karts comprises a support bracket 1 for attachment to a kart chassis 3 and having an axle bracket 6 and an engine 5 support 4. A primary gear casing 16 is attached to the engine 5 and the whole assembly is slidably mounted on the support bracket 1 for engagement with a drive gear casing 8. A primary drive gear on the engine 5 thus engages a drive gear on a carrier 12 which is keyed to the axle of the kart. Replacement engine 5 and primary gear casing 16 assemblies can be easily engaged with the drive gear casing 8. <IMAGE>
Patent GB-2217829-A (GB)
Title: Combination burner assembly
Inventor: DAVIES JOHN ANDREW
IPC: F23D14/20
Filed: 1989-04-05
Abstract: The assembly 10 includes a pre-mix chamber 18 and a surface mix chamber 24 with an outlet 40. The pre-mix chamber 18 is formed in an elongate backpiece 12 having an oxygen inlet 16 and a gas inlet 20, and is connected via passage 22 to the surface mix chamber 24. The surface mix chamber 24 is divided by plate 30 which is provided with a matrix of holes 32 serving to locate corresponding tubes 34. The tubes 34 form a gas tight (or only partial) seal with plate 30 and at their other ends 38 terminate at a flame outlet 40. Gas passing through the tubes 34 mixes at the flame outlet 40 with oxygen supplied from a second oxygen inlet 43, and a channel 44 supplied with cold water provides a cooling jacket. The assembly may be used solely as a pre-mix or as a surface mix type burner or, by supplying oxygen to both the first and second oxygen inlets, as a combination of the two types having a predetermined ratio of pre-mixed gas to surface mixed gas. <IMAGE>
Patent GB-2230198-A (GB)
Title: Detachable arm wrestling bench
Inventor: GREEN MICHAEL TRACY
IPC: A63B21/28
Filed: 1989-04-06
Abstract: A detachable arm wrestling bench has a top 1 which is releasably clipped to the legs 5 levels. The top has upon it and embedded in it elbow pads 3, touch pads 2 and hand grips 4. Pads (6, Fig. 3) on the underside of the top allow the detached top to be placed on a convenient horizontal supporting surface. <IMAGE>
Patent GB-2217473-A (GB)
Title: Fused optical fibre coupler manufacture
Inventor: KEENE IAN WILLIAM
IPC: G02B6/28
Filed: 1989-04-14
Abstract: A fused bi-conical taper optical fibre coupler having smoothly curved end portions which are mirror images of one another is formed by removing coatings from a length of each of two optical fibres F intermediate of its ends and arranging these lengths of the two optical fibres F side by side, the temperature and gas pressure of a gas flame from a gas torch 3 used to fuse contacting portions of optical fibres F and the speed of and the distance moved apart by clamps 2 supporting the fibres being controlled automatically to cause the fused portions of the fibres to stretch and provide a desired coupling ratio in accordance with a predetermined computer programme. Laser 7 may inject light into one of the two optical fibres F which is detected by detectors 8 one being connected to each fibre F. <IMAGE>
Patent GB-2230965-A (GB)
Title: Filter system
Inventor: MUGICA D FERNANDO MARTINEZ
IPC: B01D36/04
Filed: 1989-04-28
Abstract: A filter system which removes solids from a liquid used in electro-erosion machine 18 comprises a container 7 which receives the soiled liquid and a pump 27 and valve 6 which normally pass the liquid in a forward direction through a filter 10 to a filtrate container 8, shown with an overflow 19 into container 7. When the filter clogs, valve 6 is adjusted to a second position to feed liquid from container 7 through filter 10 in the reverse direction and into a third container 9. Then valve 6 shifts to a third position to feed liquid from container 7 through filter 10 in the forward direction to container 9. Soiled liquid in container 9 is purified, by settling of solids into a removable sump 22 (Fig. 2) or by an auxilliary closed circuit filtration (Fig. 3), and returns to container 7. Finally valve 6 restores the flow to the first position and normal filtering resumes. …<IMAGE>…
Patent GB-2231118-A (GB)
Title: Pipeline replacement
Inventor: BESWICK ANTHONY
IPC: E21B7/30
Filed: 1989-05-06
Abstract: A method for replacing an existing pipeline, for example a cast iron water main, employs a mole 2 whose front end fractures the pipeline and carries into the pipeline a replacement pipeline 13. Within the replacement pipeline, suitably clamped between the mole 2 and the replacement pipeline 13, is a flexible, impermeable liner 14 to screen the replacement pipeline 13 from contamination from the equipment employed. <IMAGE>
Patent GB-2221698-A (GB)
Title: Metal surface treatment
Inventor: MORI KAZUHIKO
IPC: C23C22/60
Filed: 1989-08-09
Abstract: Zinc-base plated steel is treated with an aqueous composition containing 200ppm Ni<2+> and NH3 in a molar amount of at least 6 times the amount of Ni<2+> and having a pH of less than 11.0 to provide a coating of Ni or Ni compound, prior to phosphating to improve the corrosion resistance. The Ni<2+> is preferably present in an amount of less than 100g/l and the NH3 is preferably present in an amount of less than 300g/l. Particularly preferred amounts of Ni<2+> and NH3 are 5-50g/l and 10-100g/l respectively. The composition may be applied by dipping or spraying, or alternatively the composition may be applied by an electrolytic treatment method. The coated surface may be subsequently conversion coated, preferably by phosphating, or painted.
Patent GB-2222757-A (GB)
Title: Horseshoes
Inventor: CLEAVE PHILLIP GEORGE
IPC: A01L5/00
Filed: 1989-09-13
Abstract: A horseshoe comprises a body moulded from a wear-resistant substantially rigid thermoplastics material about a substantially rigid core 10 of fibre reinforced plastics which extends along the full length of the shoe and which provides the main structural strength of the shoe. The construction is such that the shoe has a degree of flexibility which permits the rear ends of the shoe to be moved towards and away from each other to accommodate a similar flexing which occurs in the horse's hoof during walking. For this purpose, the side portions of the core may be locally waisted (22) radially. <IMAGE>
Patent GB-2225635-A (GB)
Title: A timepiece with a light emitting device
Inventor: WATANABE ISATO
IPC: G04B19/30
Filed: 1989-10-13
Abstract: The light emitting element 1 is mounted on a display portion of the timepiece. A light detecting device 2 detects the brightness around the timepiece and a switching element 3 selectively switches between a first mode in which the light omitting element is caused to illuminate with a given brightness when the brightness of the light detected by the light detecting device is lower than a predetermined brightness and is not illuminated when the brightness detected by the light detecting device is higher than the predetermined brightness, and a second mode in which said light emitting element is caused to illuminate with a brightness greater than the given brightness in the first mode. …<IMAGE>…
Patent GB-2239444-A (GB)
Title: Lined containers
Inventor: EDWARDS DAVID BRIAN
IPC: B65D25/14
Filed: 1989-10-23
Abstract: A container suitable for hazardous liquids, e.g. agrochemical concentrates, comprises a protective shock-absorbing outer (1) made from compressed recycled cellulose fibre material and a blow-moulded snap-fitting plastics liner (3) chosen to be impermeable to the liquid to be stored. The density of the fibre material is chosen to give the required strength and shock-absorption. The process for making the outer is adapted to give a relatively smooth inside surface (21) but rough outer surface (19) to facilitate handling and improve shock-absorption. The container is stackable and has a heat-sealed plastics/foil laminate lid. <IMAGE>
Patent GB-2228437-A (GB)
Title: Manufacture of metal can bodies
Inventor: SLATER DAVID GARY
IPC: B21D51/26
Filed: 1989-12-15
Abstract: In a method of forming at an open end (68) of a can body (10) an out-turned end flange (14,26) and an adjoining inward bead (16,28), the free end (68) of the can body (10) is carried frictionally in an annular groove (42) formed in a transverse end face (48,39) of a rotating driving head (32). In a first stage, an inner support roll (52) is placed inside the can body (10) in contact with its inner surface (64) at a position spaced axially from the driving head (32), and an outer work roll (54) is progressively advanced against the outer surface (6) of the can body (10) adjacent the driving head (32) so as to form the inward bead (16,28), and thereby gradually retract the open end (68) of the can body (10) within the groove (42). In a second stage, the inner roll (52) is advanced to a can body stabilising position, and the work roll (54) is then advanced further so as to withdraw the open end (68) of the can body (10) from the groove (42) and then to turn it radially outwards as the can body end (68) advances eccentrically across the rotating end face (48) of the driving head (32). During the formation of the end flange (14,26) the inner roll (52) is progressively advanced so as to maintain its can stabilising action whilst the can body end (68) progresses across the rotating end face (48) of the driving head (32).
Patent GB-2240932-A (GB)
Title: Iron golf club with round sole
Inventor: KATAYAMA YUTAKA
IPC: A63B53/04
Filed: 1990-02-17
Abstract: An iron golf club includes a sole with a bulger round 16, i.e. a convex curvature in the fore and aft section. The bulger round is formed by a curved surface having a radius of curvature R1 smaller than 20 millimeters between the leading edge and the trailing edge. The curve may be simple as shown or may have sections radiused about two distinct centres of curvature. <IMAGE>
Patent GB-2228874-A (GB)
Title: Three-piece solid golf ball
Inventor: OKA KENGO
IPC: A63B37/00
Filed: 1990-02-28
Abstract: A three-piece solid golf ball comprising a solid core consisting of an inner core and an outer shell surrounding the inner core, and a cover covering the solid core, wherein the diameter of the inner core is from 29 to 36 mm, the diameter of the solid core is from 37 to 41 mm, the central hardness (JIS-C) of the inner core is from 25 to 70, the surface hardness (JIS-C) of the outer shell is from 80 to 95, the difference between the central hardness of the inner core and the surface hardness of the outer shell is 10 or more, and the relationship between the specific gravity of the inner core and the specific gravity of the outer shell satisfies 1.0 < the specific gravity of the inner </= the specific gravity of the outer shell </= 1.3.
Patent GB-2239572-A (GB)
Title: Improvements in telecine
Inventor: MEAD TERENCE WILLIAM
IPC: H04N5/257
Filed: 1990-05-03
Abstract: To effect digital correction for afterglow or flare in a flying spot telecine, each of a series of stages calculates the contribution to the digital video signal Vin at any one scan location (e.g. pixel) which is attributable to afterglow from previously scanned locations or flare from adjacent locations. In each stage the video signal is delayed (10, 12, 14), multiplied (16, 18, 20) by a factor L1 - L3 reflecting the flare or afterglow decay characteristics, and subtracted from the undelayed video signal. To reduce the number of stages, the delays may be increased (binary series, figure 3) for signals more remote form the undelayed signal. The factors L1 - L3 are determined in an initial alignment process involving a number of frames and averaging to counter noise errors, and stored in elements 22 - 26; measurement for afterglow is performed on a single bright central pixel, whereas the spatial distribution of flare has to be accounted for by using a bright raster and a test slide with a pixel sized clear spot. Flare correction may involve a single scanning line, or a block of pixels on adjacent lines about the pixel. Fig 4 illustrates a solution to the requirement that black level clamping must precede A/D conversion but follow afterglow or flare correction.   <IMAGE>
Patent GB-2246014-A (GB)
Title: Capacitors for dram cells
Inventor: CHOI SU-HAN
IPC: H01L21/822
Filed: 1990-09-19
Abstract: A combined stack-trench type capacitor comprises a substrate 100, a transistor 1-3. a trench 10a, 10b, a conductive layer 13 serving as the first electrode of the capacitor and a diffusion blocking layer 12 disposed between the substrate 100 and the conductive layer 13 formed over the surface of the trench. By using this structure for a capacitor, a punchthrough phenomenon which otherwise could occur between trenches, and possible soft errors resulting from alpha particles may be prevented. <IMAGE>
Patent GB-2249385-A (GB)
Title: Respirator system
Inventor: GRIFFIS STEVEN CRAIG
IPC: A62B15/00
Filed: 1990-11-01
Abstract: In a respirator system for use in an enclosed area where asbestos removal is being conducted, air from the enclosed area is treated by apparatus 14, 20, 36 and then supplied to respirator masks for workers in the area. The treatment apparatus has a first air filtration unit 14 which has its discharge side in communication with an air-tight cabinet 20. Positioned within the cabinet is a second air filter unit 24 connected via one or more air pumps 30 to an air cooling heat exchanger 34 which cools the filtered air before it passes via line 38 to the respirator masks. Line 38 is connected to the masks via a hose reel assembly and includes further filters 40, 42 for removing moisture from the cooled air. Filter 52 allows excess air taken into the cabinet 20 to be discharged back into the enclosed area. <IMAGE>
Patent GB-2249524-A (GB)
Title: Book binding conveyor
Inventor: MOWLES BRENDAN
IPC: B42C19/08
Filed: 1990-11-06
Abstract: Apparatus 1 for gathering and binding blocks 2 of pages to make books includes a gathering machine 3 which delivers a block of pages onto a conveyor comprising a guide 5 having a longitudinal slot 6 through which a plurality of spaced-apart conveyor fingers 9 project. At a turnover station 20 a block of pages are turned through 90 DEG  so that the spine of the block extends parallel with the longitudinal axis of the conveyor. A block is advanced away from an associated finger 9 by an impeller lever 26 and the block then engages a trip bar 25 which turns the block through 90 DEG . <IMAGE>
Patent GB-2238910-A (GB)
Title: Preventing parasitic transistor in integrated circuits
Inventor: KERI IMRE
IPC: H01L23/31
Filed: 1990-11-16
Abstract: The integrated circuit has metal conductors 30 connected to ground or potential near ground and covered by a passivating layer 18. The passivating layer 18 is slotted above the metal conductors to prevent activation of parasitic MOS-transistors. <IMAGE>
Patent GB-2240423-A (GB)
Title: Security device for floppy disc drive
Inventor: MANNING ADRIAN DAVID
IPC: G11B23/00
Filed: 1991-01-30
Abstract: A lockable security device (5, 6) for a floppy disc drive (1, 8, 9) comprises a plastics moulding (5) which includes a lock (52) for engaging a slidable plate member (6) which carries a downwardly and rearwardly extending projection (63) on its lower surface. When the lock (52) is unlocked the plate member (6) can be slid forwardly to raise the projection (63) by engagement with the forward edge of an aperture (56) formed in the lower moulding (5). The device can then be slid into the slot of a floppy disc drive and on sliding plate member (6) rearwardly (in the direction of arrow B) the projection (63) swings downwardly and engages the inner periphery of the drum (9) of the floppy disc drive. The device can be locked in this configuration to prevent its withdrawal and thereby prevent the unauthorised insertion of a floppy disc into the drive. The device can be withdrawn by unlocking the lock (52) and subsequently withdrawing the lower moulding (5) rearwardly in the direction of arrow B. The projection may engage different parts of the drum, depending on the size of the disc drive. <IMAGE>
Patent GB-2243115-A (GB)
Title: Non impact printer
Inventor: LEWICKI JR WALTER J
IPC: G03G15/32
Filed: 1991-04-17
Abstract: This invention involves both a process and apparatus for printing an image on a removable thicker dielectric layer than conventionally used in other systems. The process and apparatus can have one or more image-toning stations (9) on a conductive substrate (1). When multiple stations having separate imaging and toning means are used, complicated image registration structures are avoided. The dielectric layer (5, 10) used is at least 0.2 mils thick and is removed from the system after it is imaged developed, fixed and laminated or overcoated with a layer (15) of the same family resin as used in the dielectric layer or layers. The imaged and overcoated layer may be attached to substrate such as a tile or wallpaper base, either before or after the process of this invention is completed. The overcoating (15) substantially strengthens the dielectric layer in addition to overcoating the image. The final colored image (or monochrome) is removed from the printing apparatus after the overcoating (15) is laminated. <IMAGE>
Patent GB-2244377-A (GB)
Title: Capacitor
Inventor: TOKURA KOICHI
IPC: H01G4/38
Filed: 1991-07-05
Abstract: A capacitor (1) having capacitor elements (5) mounted in respective inner casings (4) filled with an insulating fluid and individually encapsulated by synthetic resin (10). The capacitor elements in the encapsulated inner casings are connected together to form an assembly and the assembly is mounted in an outer housing (13) with an insulating gas sealed therein. Each inner casing is wrapped with glass fibre, roughened or fiber-flocked before encapsulation. <IMAGE>
Patent GB-2246239-A (GB)
Title: Switching device
Inventor: NAKAHATA MINORU
IPC: H02B13/02
Filed: 1991-07-18
Abstract: A switching device comprises a plurality of interengageable switch modules 20, each switch module 20 comprising a plurality of switches housed within a casing, each switch including a terminal to which an electrical connection can be made from outside of the casing, and a terminal 11b arranged to be connected to a respective bus bar 18 within the casing. The casing of each switch module 20 includes a cylindrical portion into which a rectangular portion is inserted. Flanges at both ends of the cylindrical portion are engageable with the flanges of the casings of adjacent switch modules 20. The switches within each casing are arranged parallel to the flanges and the switch terminals 11b within the casing are arranged substantially on a line passing through the centre of the circular opening of the casing. <IMAGE>
Patent GB-2250533-A (GB)
Title: Window frame mounting structure
Inventor: WINTERTON IAN CHRISTOPHER
IPC: E06B1/60
Filed: 1991-10-28
Abstract: A building aperture has a rigid outer frame member 1 serving as a template around which brickwork 2 is constructed. Brickwork ties 3 connect with the outer facing surface 4 of the frame which includes turned-in edge portions 5, 6 to define channels into which wing 7, 8 of brick ties may be located with the tails 9 being suitably embedded in the brickwork mortar. The rearward facing surface of frame member 1 has a flat face 10 serving to define an end stop for plaster 11. The forward facing surface has a nose-shaped profile 12 which provides sufficient opening for insertion of a window 13 from the front. Peripherally spaced spring clips 14 retain the window surround 13 by engagement underneath discrete or strip mushroom-headed formations 15 moulded into the frame itself. The clip 14 includes an outwardly projecting detent 16 which is arranged to engage behind an abutment face 17 pressed out of outer frame 1. <IMAGE>
Patent GB-2259084-A (GB)
Title: Feeding web to bag form/fill device
Inventor: HANAI KUNIYOSHI
IPC: B65B9/213
Filed: 1992-03-20
Abstract: A bag forming/filling system includes a delivery mechanism E to feed a predetermined length of web material from a web roll A to a bag forming cylinder D, where the web is sealed to form a bag. A predelivery mechanism unwinds and loosens a portion of the web from the web roll by a length substantially corresponding to the predetermined length before operation of the delivery mechanism. The predelivery mechanism shown includes a lever 1 which moves to the solid line position to pull web from the roll during closing motion of sealing jaws F, and which then moves to the broken line position to leave a loop of web hanging free. In a second embodiment, (figure 6), the predelivery mechanism includes a drive element for rotating the web roll and a detector for detecting a slackened length of a portion of the web. <IMAGE>