baber/WOPTO huggingface dataset:
Patent GB-2165245-A (GB)
Title: Chemical compounds
Inventor: LOOKER BRIAN EDGAR
IPC: C07D501/46
Filed: 1985-09-30
Abstract: The present invention provides compounds of general formula (III> <IMAGE>  [wherein  R is an amino or protected amino group; R<2a> is a straight or branched chain C1-4 alkyl group allyl, but-2-enyl, but-3-enyl, or a group of formula   <IMAGE> (wherein each of R<3> and R<4> is independently hydrogen, methyl ethyl, or R<3> and R<4> taken together with the carbon atom to which they are attached may be a C3-5 cycloalkylidene group, and R<5> is a hydrogen atom or a carboxyl blocking group); Y represents a 1-methyl-1-pyrrolidinium group and R<7> represents the group -COO<-> or COOR<6>, where R<6> is a hydrogen atom or a carboxyl blocking group] and salts thereof. The invention also relates to the use of certain compounds of general formula (III) for the preparation of cephalosporin antibiotics by reduction of the S-oxide moiety.
Patent GB-2165690-A (GB)
Title: Electrical cables
Inventor: MARSH TIMOTHY GEORGE
IPC: H01B11/22
Filed: 1985-10-02
Abstract: In order to reduce the risk of "water-tree growth" on the surface of a conductor in an electrical underwater cable, the conductor 1 is surrounded by an extruded aluminum sheath 2 having a water-impermeable medium 7 therein. A semiconductor screen 3 surrounds the sheath and a layer of insulation 4 is provided around the screen. Several such cables may be stranded together with optical cables in an outer sheath. The water-impermeable medium may be petroleum jelly mixed with bentonite, or sodium carboxymethyl cellulose. <IMAGE>
Patent GB-2173498-A (GB)
Title: Oximes useful in the preparation of pesticides
Inventor: ELLIOTT MICHAEL
IPC: A01N53/00
Filed: 1985-10-17
Abstract: A compound of formula IIB:   <IMAGE>  whereinin Q is -CHO or a group of formula   <IMAGE> where Y is hydroxy or a halogen and D is hydrogen or a cyano or ethynyl group,    A is an alkyl group,    Ra is an alkyl group,    n is 0 to 4, and b is 0 or 1.o
Patent GB-2168337-A (GB)
Title: Ceramic foam
Inventor: KATO YOSHIHISA
IPC: C04B38/06
Filed: 1985-11-05
Abstract: A ceramic foam has a three-dimensionally reticulated ceramic structure in that a bulk density thereof is between 0.4 and 2.0. An apparent porosity of many ceramic strands is 5% or less. Each of the strands has plural ceramic layers. A method for manufacturing a ceramic foam includes the steps of impregnating a basic urethane foam having a three-dimensionally reticulated structure with a slurry or slip for ceramic manufacturing purpose, drying them plural times so as to increase a thickness of the ceramic strands, and firing them thereby to obtain a ceramic body.
Patent GB-2170658-A (GB)
Title: A casing for an electrical appliance
Inventor: KITAMURA HIDEO
IPC: H05K5/00
Filed: 1985-12-20
Abstract: A casing for an electrical appliance which includes a main case (1), a base plate (5) fitted into an open bottom portion (2) of the main case (1), first stand-off projections (3) having a large amount of protrusion (X) and provided to project from the lower edge (1a) of the main case (1), and second stand- off projections (6) having a small amount of protrusion (Y) and provided to project from the undersurface of the base plate (5) for providing two kinds of clearance between the undersurface of the base plate (5) and the surface of a printed circuit board. <IMAGE>
Patent GB-2191795-A (GB)
Title: Surface treatment of peroxyacids
Inventor: BAXTER PAUL LESLIE
IPC: C11D3/20
Filed: 1986-06-17
Abstract: Under conditions of misuse, water-soluble peroxyacids when they are left in direct contact with dyed fabrics can cause spotting and dye damage. The problem can be ameliorated by surface-treating the peroxyacid with an effective amount, preferably selected in the range of 10 to 25% w/w based on the peroxyacid, of esters of fatty acids and fatty alcohols which melt or soften at about 30 to 45 DEG C. The esters employed are derived from aliphatic acids having a chain length of from 8 to 20 carbon atoms and aliphatic alcohols having a chain length of from 8 to 20 carbon atoms or cycloaliphatic alcohols having 6 to 10 atoms in the ring which may be alkyl substituted. Many of the esters contain from 24 to 30 carbon atoms. Preferred agents include stearyl laurate and lauryl stearate. The agent can be applied in molten fashion or in inert solvent such as a chlorinated aliphatic hydrocarbon onto agitated particles of the peroxyacid, and most preferably onto a bed of particles maintained at about 10 to 15 DEG C below the melting point of the already low melting treatment agent.
Patent GB-2182108-A (GB)
Title: Railway wheels with braking surfaces
Inventor: LATHAM JOSEPH
IPC: B60B17/00
Filed: 1986-10-24
Abstract: Railway wheels and brake assemblies therefor are described, and each wheel comprises an inner hub 2, an outertread 4 having a flange 4a at one side thereof, and a web 5 between the tread and the hub. In one wheel, the face of the web 5 against which a braking pad 6 will act is bounded by inner and outer circumferential edges 11 and 12 each of which is bounded by a respective clearance, and the axial thickness of the webs 5 is at least 1 DIVIDED 2, and preferably equal to or greater than, that of the tread. A further wheel has a diameter less than 550mm with a web having an axial thickness of at least a half that of the tread. The web of this latter wheel has a radial centre plane which is off-set from that of the tread and also from the plane containing the running centre line of the wheel. A still further wheel has brake discs or the like secured to opposite faces of the web. In this wheel, the web has an axial thickness of at least a third that of the tread and the total axial thickness of the web and the brake discs is at least half that of the tread. All wheels may be used with in-board bearings. <IMAGE>
Patent GB-2182978-A (GB)
Title: Fuel injector nozzles for I.C. engines
Inventor: MCKAY MICHAEL LEONARD
IPC: F02M67/12
Filed: 1986-11-11
Abstract: In a fuel injector nozzle a valve element 43 co-operates with a valve seat 58 to control fuel flow to an engine combustion chamber, and a fuel spray directing surface 65 extends downstream from the valve seat 58. The body 31 of the nozzle includes a cavity 61 shaped and located to restrict the area for conductive heat flow from the spray directing surface 65 to the fuel passage 57. Restriction of the heat flow maintains the spray directing surface 65 at a temperature to combust particles of combustion products deposited thereon. The penetration of the nozzle into the combustion chamber may be varied. Passage 66 may be cylindrical instead of conical. The valve 43 may be notched (Figs. 4,5) downstream of the seat 58. <IMAGE>
Patent GB-2185200-A (GB)
Title: Drilling tool bit
Inventor: ENKE WOLFGANG
IPC: B23B51/00
Filed: 1987-01-06
Abstract: A drilling tool, in particular for use as a multi-spur machine bit, for wood, plastics and similar materials is provided with a tool bit blade located in a slot in the front section of a base structure (1). Two fixing screws (19) in cross-holes (8) in the base structure are inserted through bores in the tool bit blade. <IMAGE>
Patent GB-2201077-A (GB)
Title: Animal feed rationer
Inventor: KNIGHT GRAHAM FRANK
IPC: A01K5/02
Filed: 1987-02-18
Abstract: An animal feeder comprises trough 10 with a cover 11. Slot 12 in cover 11 is covered by a shutter 13 on hinged arms 14. In a preferred embodiment, near arm 14 can be released by solenoid 16 when operated by timer 17. Thus animals or birds eg racing pigeons, can be fed at predetermined times. <IMAGE>
Patent GB-2188789-A (GB)
Title: R.F. ceramic resonator filter; microstrip combiner
Inventor: LONGSHORE THEODORE F
IPC: H01P1/213
Filed: 1987-04-07
Abstract: Transmitter combining apparatus includes up to five RF filters (100) coupled to a microstrip combiner (300) (Fig. 3) for coupling up to five input signals to a common antenna. The RF filter (100) includes a ceramic resonantor (116) sandwiched between first and second dielectric compensating discs (114 and 120) and first and second metal shield plates (142 and 148), within a metal housing (124), for temperature compensation, low loss mounting and heat sinking of the ceramic resonator (116). Good thermal contact within the assembly is produced by a compressive force exerted by springs (144-147) of shield plate (142). The resonant frequency of the RF filter is tuned by means of a ceramic tuning core (118) insertable into concentric holes in the disc (114) and resonator (116). Input and output signals are coupled to and from each RF filter via respective input and output coupling loops. The microstrip combiner includes a circuit board (310) having five transmission lines (601-605) for coupling to the filters, and a short-circuited tuning transmission line (610), all coupled to a junction (620). The microstrip combiner is tuned by means of a <IMAGE>
Patent GB-2207026-A (GB)
Title: Diving communications aid
Inventor: JOHNS GLENN RAYMOND
IPC: H04R1/46
Filed: 1987-07-13
Abstract: A diving communication system using audible sound projection devices 3; the audible communication signals being received directly by the submerged diver or via a receiver which picks up the signals and amplifies them before transmitting them either visually via a light display or audibly directly to the diver's skull through a transducer. The sound projection devices 3 may be provided on each diver or hung over the side of a boat 10 to provide communication both between submerged divers and between the surface and submerged divers. Piezoelectic transducers may be utilised. <IMAGE>
Patent GB-2198471-A (GB)
Title: Key for a locking member
Inventor: ROBINS IVAN LEE
IPC: E02D29/14
Filed: 1987-07-27
Abstract: In a combination of a key and a locking member (28, 128), the key (50) comprises a body (51) having a first co- operating formation (53) to engage with a corresponding second co-operating formation (131) of the locking member (128) to enable the locking member (128) to be moved between locked and unlocked conditions, a retaining member (56) mounted in or on the body (51) and movable relative to the body (51) into engagement with the locking member (128), at least when the first (53) and second (131) co-operating formations are engaged to maintain the first and second co- operating formations in engagement. As shown the retaining member (56) has a threaded end (57) which locates in a threaded bore (58). <IMAGE>
Patent GB-2195238-A (GB)
Title: Chair frame
Inventor: LOCHER HERMANN
IPC: A47C3/026
Filed: 1987-08-14
Abstract: The chair support comprises a supporting structure, a seat holder and a backrest holder. The seat holder is pivotably or swivelably connected by means of a first swivel joint with the supporting structure and by means of a second swivel joint with the backrest holder. The backrest holder possesses an arm or arm structure and a substantially flat-surfaced hollow tube which is fitted and fastened in a holding support of the arm. The arm or arm structure projecting into about the middle of the chair support between the first and the second swivel joint is connected with a third swivel joint by means of guide rods or links which are supported at the supporting structure by means of a fourth swivel joint. A first spring element engages at the third swivel joint and a second spring element engages at the supporting structure. Both spring elements are releasable and blockable by means of operating or actuating rods. In spite of the space-saving and simple construction of the chair support, the usual seating comfort of such chairs is offered.
Patent GB-2272962-A (GB)
Title: Projectile warhead
Inventor: GAYWOOD JOHN EDWARD
IPC: F42B12/18
Filed: 1987-08-17
Abstract: A projectile warhead comprises an airframe including separate primary (1) and secondary (2) explosive charges which are arranged one behind the other on opposite sides of a barrier (4) and which, in use, are detonated sequentially. The charges (1) and (2) are movable away from one another into a position remote from one another before detonation to prevent detonation of the primary charge (1) interfering unduly with that of the secondary charge (2). The warhead also includes means (6, 12) to cause the relative movement between the charges (1) and (2) after launch of the projectile (3) and before detonation of the warhead. <IMAGE>
Patent GB-2198885-A (GB)
Title: A relay
Inventor: SASAKI AKIMASA
IPC: H01H47/04
Filed: 1987-11-26
Abstract: An electromagnetic relay includes a power reducing arrangement for automatically reducing the power consumption of the relay. The relay includes a pair of cooperable relay contacts (19, 25) and a switch member (27, 31) which is movable with the movable contact (19) relative to at least one coil terminal (13) for controlling the current level in the electromagnetic coil (7). In response to energisation of the electromagnetic coil (7), a movable contact plate (15) simultaneously moves the movable relay contact (19) into engagement with the other contact (25) and the switch member (27) with respect to the coil terminal (13) to cause either a part of the electromagnetic coil to be connected in series with another part of the electromagnetic coil or alternatively a resistor to be connected in series with the coil (7). As a result, a holding current level is produced which is less than the driving current level. …<??>A microwave cooking oven, may be made more compact and cheaper with such a relay or relays in a control device therefor. …<IMAGE>…
Patent GB-2200690-A (GB)
Title: I.C. engine fuel injection nozzle
Inventor: GASKELL DAVID JOHN
IPC: F02M61/10
Filed: 1988-01-25
Abstract: The valve member 23 is slidable in a sleeve 18 also subject to fuel under pressure and also movable against the action of the spring 20, the extent of movement of the sleeve away from the seating being limited. The movement of the sleeve towards the seating 13 is limited by its engagement with an abutment 26 on the valve member. <IMAGE>
Patent GB-2214685-A (GB)
Title: Fire escape system
Inventor: PERRY BRIAN
IPC: G09F13/12
Filed: 1988-01-27
Abstract: Indication of a fire escape route from a system such as an underground railway which has one or more enclosed locations and one or more routes to one or more exits from the system is provided by one or more beams 20 of laser light along a route from at least one of the locations to at least one of the exits when a smoke condition exists in the system, the laser beam or beams providing an indication of the escape route. The beam may be shrouded so as not to be visible but part of the beam is diverted to illuminate direction signs or instructions or mixtures thereof disposed along the route or routes. As shown, beam splitting mirrors 30, 40, 50, 60 direct part of the beam down to signs 41, 61 which may be holographic or such as to luminesce or fluoresce. Fibre optic cable may also be employed. <IMAGE>
Patent GB-2204886-A (GB)
Title: Improved apparatus for the production of nonwoven fabrics
Inventor: ZANFERRARI ROBERTO
IPC: D04H3/16
Filed: 1988-03-15
Abstract: Apparatus for the production of a non-woven fabric from a web of continuous filaments by extrusion and spinning of thermoplastic resins and comprises a spinning head 11 having staggered spinnerets 14, 15 for producing bundles of filaments and arranged obliquely to the direction of a moving suction applied apron 25 on which the web is formed, cooling chambers 17 for each filament bundle, bundle acceleration nozzles 22 having a venturi tube structure and inclined relative to the spinning axis of the head 11, bundle widening fixed blades 26 arranged obliquely to the axial plane of the cooling chambers 17 and inclined relative to the plane of apron 25, and bundle distributing blades 28 inclined relative to the plane of apron 25 and oscillatable in synchronism by rods 30, 30' to form a homogeneous web on apron 25. The web is consolidated by hot calendering using rolls 33, 34. The bundles are subjected to cooling and aerodynamic acceleration of the filaments at a speed ratio of between 500 and 3500. <IMAGE>
Patent GB-2206034-A (GB)
Title: Drawers and drawer components
Inventor: HARDY TERENCE
IPC: A47B88/00
Filed: 1988-04-26
Abstract: A drawer assembly comprising a drawer adapted to be mounted on roller runner assemblies (22) or on fixed runners (11), the drawer comprising separate back (5A) and side members (5) interconnected by corner pieces (15) at the rear corners of the drawer, said corner pieces incorporating stop members (21) co-operable with projections (11B) on said fixed runners to limit outward movement of the drawer on the runners during normal operation, and the drawer side panels incorporating longitudinal channels or recesses adapted to receive either of said forms of runner and so constructed that the stop members on the corner connectors do not interfere with operation of the roller runner assemblies when the drawer is fitted therewith. <IMAGE>
Patent GB-2210295-A (GB)
Title: Magnetic drain bolt
Inventor: AISA JUNZO
IPC: F16N39/06
Filed: 1988-05-06
Abstract: A drain bolt has a synthetic resin magnet (12) embedded in a recess (15). The projecting portion (17) of the sythetic resin magnet (12) may be larger in diameter than the sinker portion (16). A plurality of grooves (18) may be formed on the side of the projecting portion (17). Caulking (19) holds the magnet in the recess. Alternatively the magnet may be secured by threading (Fig 3), a press fit (Fig 4) or moulded in situ (Fig 5). The grooves in the magnet may have opposed polarities (Fig 6). <IMAGE>
Patent GB-2229087-A (GB)
Title: Display apparatus
Inventor: DEACON JOHN
IPC: A47F5/04
Filed: 1989-03-14
Abstract: Display apparatus comprising an upright post and display arms releasably connected to and extending outwardly of the post. The post comprises a core member (5) and a cladding sleeve (6) removably mounted on the core member whilst the display arms each comprise a load-supporting member (8) and a cover sleeve removably mounted on the load-supporting member. The cladding sleeve (6) of the post and the cover sleeve of the display arm are readily replaceable to change the appearance and/or colour of the display apparatus. <IMAGE>
Patent GB-2222283-A (GB)
Title: Data transfer between modules in a processing system
Inventor: CRANE DAVID PAUL
IPC: G06F15/17
Filed: 1989-07-20
Abstract: A data processing system has a number of input/output controller modules connected to an I/O bus 14. Each module contains a dual-port memory 25, accessible either from the bus or from a processor 20 in that module. Each dual-port memory contains a number of controller registers, one for each other module. When module X wishes to send a command to module Y it writes the command into controller register X of module Y and then interrupts module Y. This permits fully symmetric message passing between the modules, for messages of arbitrary length, and allows any module to have messages outstanding simultaneously from more than one of the other modules. <IMAGE>
Patent GB-2223515-A (GB)
Title: Gully top for drainage system
Inventor: JACKSON JOHN RUSSELL
IPC: E03F5/04
Filed: 1989-10-03
Abstract: A gully top comprises a plastics hopper (1) having a head portion substantially at ground level, which head portion converges downwardly into a substantially tubular section for connection to a plastics drainage pipe, the upper part of the head portion (5) being encased in concrete, said casing extending above the platform to thereby provide an inlet fitting for said drainage pipe. <IMAGE>
Patent GB-2225928-A (GB)
Title: Mobile storage furniture
Inventor: TAPPING MICHAEL NELSON
IPC: A47B53/02
Filed: 1989-11-16
Abstract: Mobile storage furniture of the type having tracks, and a plurality of storage cabinets carried by the tracks, at least one said cabinet being mobile along the tracks, wherein each said track comprises a pair of track surfaces inclined with respect to one another, each said mobile cabinet comprises a pair of base frame members overlying respective said tracks, each said base frame member being of constant cross sectional shape, having a web flanked by two depending flanges defining a downwardly facing channel, and at least one stiffening web, rollers journalled for rotation between the flanges engaging and guided by a respective said track, a lower shelf, and fasteners securing the lower shelf to the base frame members. <IMAGE>
Patent GB-2228843-A (GB)
Title: Analog-to-digital converter
Inventor: HAUSER KARL-HEINZ
IPC: H03M1/78
Filed: 1990-02-15
Abstract: Integration of an analog voltage signal Uin involving conversion into a corresponding digital signal is performed during a measuring cycle for the analog signal using a comparator controlling a counter driven by a clock-pulse generator controlled by the analog signal. The comparator is connected to a D-type flip-flop which in turn is connected to control the counting direction of a reversible up/down counter having digital-to-analog converter circuitry at its output. The clock pulse generator is variable in pulse frequency according to the absolute value of the voltage to be integrated. <IMAGE>
Patent GB-2229814-A (GB)
Title: Detection or investigation of DNA
Inventor: FORD GRAHAM
IPC: C12Q1/68
Filed: 1990-02-21
Abstract: An apparatus for detecting or investigating DNA comprises a thermally insulated cabinet 10 defining a chamber which is heated by an electrical resistance heating element, the heating effect of which is distributed throughout the chamber by means of a heat spreading plate 14, the temperature within the cabinet being maintained at about 65 DEG C by a thermostat 16. The cabinet 10 has an electric motor 18, the drive shaft of which carries a pinion 20 driving three spur gears arranged horizontally in line, the pinion 20 driving the central spur gear which meshes with and drives the two outer spur gears. Each spur gear is mounted on (and drives) a corresponding one of three shafts the ends of which project into the heated cabinet 10 and form stub shafts 24. Each stub shaft 24 engages the outer periphery of an end plug 26 which closes a corresponding one of three glass tubular receptacles 28 which are sealed at their opposite ends by similar plugs 30. In use, as each tube 28 is rotated the DNA, smeared on a carrier, is brought into intimate contact with a radioactive probe solution introduced into the receptacle and which has an affinity with the sequence being detected or investigated. <IMAGE>
Patent GB-2243176-A (GB)
Title: Road traffic network
Inventor: RASWANT SUBHASH
IPC: E01C1/00
Filed: 1990-04-17
Abstract: A road traffic network wherein the fundamental "building block" (10) is an endless loop (12) of one-way traffic flow, a second endless loop (14) of one-way traffic flow completely surrounded by the first endless loop (12) and having traffic flow opposite in direction to the traffic flow direction of the first loop (14). An interconnecting traffic flow roadway (60; 25) extends between the two loops. The interconnecting roadway (60; 25) merges the traffic seeking to transfer between the two loops such that no vehicle crossovers or intersections are encountered. A road traffic network can be made from a plurality of interconnecting building blocks. Furthermore, intraloop roadways may be provided to shorten the distance between points on a map. <IMAGE>