baber/WOPTO huggingface dataset:
Patent GB-2203108-A (GB)
Title: Endless track vehicle for verticle and like surfaces
Inventor: CHAPMAN JOHN EDWARD
IPC: B62D55/265
Filed: 1988-04-07
Abstract: The vehicle 1 is provided along each side with an endless track 9. The track 9 carries transverse, similarly orientated magnets so by which the vehicle may cling to a surface of magnetic material. At their ends, the tracks pass over pinion wheels 10. The teeth of the trailing sprocket wheels 10, at least, are also provided with magnets 21 but of opposite polarity to the magnets 20. The effect of the magnets 21 is to counter the attraction exerted by the magnets 20 and so tend to release them from the surface along which the vehicle is travelling. In a modification shown in Figure 4 the magnetism is provided by electromagnets 30 that are energized whilst passing from the leading sprocket wheel 10a to the trailing sprocket wheel 10 by contact 37 sliding along busbars 40 and 41. The electromagnets will have ceased to be energized whilst they pass on to, and over, the trailing sprocket wheel. <IMAGE>
Patent GB-2217254-A (GB)
Title: Method and apparatus for spin welding
Inventor: COLLINS MALCOLM GEORGE
IPC: B29C65/00
Filed: 1988-04-13
Abstract: A method of spin welding an annular weld zone of a first component to a complimentary annular surface of a second component, in which a tool (Fig. 3) for holding or driving one of the components has centring means 31 to centre a component 17, 18 on the rotational axis, a thrust surface 32 adapted to engage a margin of said component, and a plurality of spikes 33 protruding from the thrust surface to penetrate the margin of the component when the thrust surface 32 is pressed onto the margin. The benefit is that no drive webs or holding dogs are needed. The annular weld zones of the components may be profiled (Fig. 9) to define a weld land L and void t flanked by complimentary annular projections B and troughs A to seal the weld zone against melt leakage. <IMAGE>
Patent GB-2229971-A (GB)
Title: Folding furniture/storage trolley
Inventor: CURLING ALAN HENRY
IPC: B62B3/02
Filed: 1988-08-25
Abstract: The trolley comprises three sub assemblies, a top, bottom, and back frame which are hinged together to enable the trolley to collapse into a flat folded position. To erect the trolley, the top and back frames are together pivoted into a vertical position and then the top frame is pivoted into a horizontal position above the base frame.
Patent GB-2211332-A (GB)
Title: A liquid leakage sensor
Inventor: AKIBA JYUJI
IPC: G01M3/04
Filed: 1988-10-12
Abstract: A liquid leakage sensor is provided having an electrically insulating sensor base (10) and first and second elongate electrical conductors (11,12) embedded in the insulating base, portions of the conductors being exposed to the environment through a plurality of openings (14) in the insulating base, the sensor being capable of detecting a conductive connection between exposed portions of the first and second conductors when an electrically conductive liquid penetrates one or more of the openings, wherein one end (11a,12a) of each of the first and second conductors extends to one edge of the insulating base and is covered by electrical insulation (18), and the other end (11b,12b) of each of the first and second conductors extends outwardly from the opposite edge of the insulating base, the outward extensions (11b,12b) of these first and second conductors being connected to electrical wires (21,22) leading to alarm means, both the outward extensions (11b,12b) and electrical wires (21,22) being covered by and encased within electrical insulation (16).
Patent GB-2225633-A (GB)
Title: Base for gas burner
Inventor: HOMER DAVID WILLIAM
IPC: F24C3/10
Filed: 1988-11-04
Abstract: A burner base assembly for a gas burner comprises an annular base 11 having a cut-out therein and a ceramic holder 13 for an electrode 14 adapted to be retained in the cut-out by a conforming shape thereof. The cut-out decreases in width with increasing distance from the centre of the base. A discontinuity in the electrode, or in the bore in which it is accommodated, holds the electrode in place. <IMAGE>
Patent GB-2213519-A (GB)
Title: Improved door or window safety device
Inventor: WAKEFIELD STEPHEN ROGER
IPC: E05B17/00
Filed: 1989-01-12
Abstract: A safety device preventing inadvertent closure of a door or window 4 against a frame member (5 Fig1) includes a J-shaped arm 1 pivotally supported in a base 3 mounted on a face 4b of the door so that it can be moved to overlie an edge 4a of the door and become traced between the door 4 and frame member (5 Fig 1). In an inoperative position the arm (1) is spaced from the edge (4a) and lies against the face (4b) of the door. <IMAGE>
Patent GB-2232201-A (GB)
Title: Adjustable swirl i.c. engine intake duct
Inventor: BRUNO ANDREATTA
IPC: F02B3/06
Filed: 1989-05-19
Abstract: A supplementary duct 13 contains a movable flexible steel strip 14 which variably protrudes into the intake duct 10 immediately upstream of the valve spiral 11. The strip 14 position may vary dependent upon engine load and speed. <IMAGE>
Patent GB-2219703-A (GB)
Title: Propeller speed and phase sensor
Inventor: COLLOPY PAUL DENNIS
IPC: B64C11/50
Filed: 1989-07-04
Abstract: A speed and phase sensor for counterrotating aircraft propellers 15, 18 is described. A toothed wheel 27, 30 is attached to each propeller 18, 15, and the teeth trigger a sensor 33, 36 as they pass, producing a sequence of signals. From the sequence of signals, the rotational speed of each propeller is computed, based on the time intervals between successive signals. The speed can be computed several times during one revolution, thus giving speed information which is highly unto-date. Given that the spacing between teeth, or their shape or composition, may not be uniform, the signals produced may be nonuniform in time. Error coefficients are derived to correct for nonuniformities in the resulting signals, thus allowing accurate speed to be computed. Phase can be viewed as the relative rotational position of one propeller with respect to the other, but measured at a fixed time. The phase is computed from the signals. <IMAGE>
Patent GB-2235164-A (GB)
Title: Preventing liquid particularly oil spillage
Inventor: GRIFFITHS RICHARD ALAN
IPC: B63B25/08
Filed: 1989-08-22
Abstract: A method of preventing the escape of a liquid from large containers to avoid ecological disasters e.g. oil from ocean tankers or land based tanks comprises retaining the liquid by temporarily sealing vents 5, 7 by mechanically, manually, or electrically operated valves 14, 15. A magnetic breach mat may be used in conjunction with the method of holding back the liquid when a sea-going bulk liquid carrier is holed at 13. <IMAGE>
Patent GB-2226183-A (GB)
Title: An LED array and a method of making same
Inventor: KI-JOON KIM
IPC: B41J2/45
Filed: 1989-11-02
Abstract: An LED array and a method of making an LED array are disclosed, the LED array being capable of radiating relatively efficiently a generated light beam without substantial disturbance by an electrode. Such an LED includes current blocking means 24 in a first region for blocking the passage of current directly between the electrodes 28, 29, the current being redirected to a second region 25 not sandwiched directly between the electrodes 28, 29. Adjacent the second region 25 there is provided a radiative region 30 which radiates light to the outside. This light does not pass substantially through an electrode, which might otherwise attenuate the light, due to the dispositions of the second region and the electrode. <IMAGE>
Patent GB-2226776-A (GB)
Title: Pumping station
Inventor: BAERUMSVEIEN JAN SVERRE CHRIST
IPC: F04D29/60
Filed: 1989-12-20
Abstract: An underwater pumping station receives the flow from one or more adjacent oil wells on the sea floor and pumps the gas and liquid fractions through one or separate pipelines to a processing plant ashore. The station is an integral structure comprising a central gas-oil separator 2 with respective pumps 3 and 4 for discharging the separated oil and gas located below and above the separator. A common connection unit 10 at the bottom of the structure connects the station to inlet line 1 from the wells(s) and outlet pipelines 6, 8 for the oil and gas. To assist separation, the upper part of separator 2 is thermally insulated and the lower part has cooling fins. <IMAGE>
Patent GB-2241920-A (GB)
Title: Method of manufacturing a lost wax pattern of a bladed rotor
Inventor: BROUGHTON JAMES
IPC: B22C7/02
Filed: 1990-03-17
Abstract: A curable epoxy resin/aluminium powder composition (22) is cast upon the bladed region of a master pattern (11) of the bladed rotor, within an outer mould wall (20). Sufficient of the cured resin composition (22) is then machined away so that a plurality of discrete resin composition segments (29) are defined, each segment being interposed between adjacent blades on the master pattern (11). The segments (29) are then removed from the master pattern (11) and placed in an appropriately configured injection mould die member (32) so as to define a complete die for the production of a wax pattern in the form of the master pattern (11). The composition (22) is moulded between preformed rings (15, 18), which are removable and replaceable upon the segments (29), to locate them in the required juxtaposition within die member (32). <IMAGE>
Patent GB-2233264-A (GB)
Title: An automatic brazing machine
Inventor: GRISONI SERAFINO
IPC: B23K5/00
Filed: 1990-06-14
Abstract: An automatic brazing machine for joining metal elements comprises a robot, a braze welding head 3 carried by the robot, and sensor means 132 for detecting the position of the elements to be welded and the consequent positioning of the head. The head 3 comprises an oxyacetylene torch 82 disposed along a first axis, means 133 for supplying a welding alloy along a second axis convergent with the first axis, and torch displacement means adapted to cause a reciprocating linear motion of the torch 82 along the first axis and to vary its position along a third axis coplanar with the first and second ones and orthogonal to the first axis and its inclination about the first axis. <IMAGE>
Patent GB-2244375-A (GB)
Title: A method for manufacturing dram cells
Inventor: KIM KYUNG-HUN
IPC: H01L27/04
Filed: 1990-09-20
Abstract: The method comprises the steps of: forming a transistor on a substrate, depositing an insulating layer (10), patterning a first conductive layer (30) by vertically and horizontally etching it using a first mask, depositing a first insulating film (32), depositing a second conductive layer (33) to protect the first insulating film (32), vertically etching the second conductive layer (33), first insulating film (32) and insulating layer 10 using the first mask, forming a pattern of the second conductive layer (33) by vertically and horizontally etching it using a second mask, depositing a second insulating film (36), depositing a third conductive layer (37) to protect the second insulating film (36), vertically etching the third conductive layer (37) and second insulating film (36) using the second mask, and increasing the thickness of the third conductive layer (37). The method achieves a larger effective capacitance as the plate electrode layer 30, 37 also surrounds the lower surface of the storage electrode layer 33 of the stack capacitor. <IMAGE>
Patent GB-2248319-A (GB)
Title: Transportable ac power supply apparatus.
Inventor: YOUNGER GRAEME WILLIAM
IPC: H02M7/538
Filed: 1990-09-28
Abstract: A power supply for generating a facsimile of the ac mains is powered by a dc battery in a portable unit. The invention combines a triple dependence upon the role of a flyback-connected transformer (a) in introducing dc stabilization control by energy packaging in the buffer transfer (b) in using the hysteresis feature as a barrier obstructing reverse energy flow on overload and its retardation effect to allow time for sensing and correction of overload and (c) in using the electronic control of a kilohertz pulsing action of the transformer to form the ac output wave.
Patent GB-2249005-A (GB)
Title: Fly fishing reel with magnetic 'check'
Inventor: COOKE KENNETH GRAHAM
IPC: A01K89/0155
Filed: 1990-10-25
Abstract: A fly fishing reel has its 'check' feature provided by a system of wafers 3 and 4 of magnetic material which are bonded to the fixed and moving portions Fig 1 and Fig 2 of the reel, the exposed face of the wafers 3 on the fixed portion being of opposite polarity to the exposed face of the wafers 4 on the moving portion. The gap between wafers 3 and 4 is determined by the thickness of collar 5. <IMAGE>
Patent GB-2241200-A (GB)
Title: Identity or bank card
Inventor: SMITH RICHARD
IPC: B42D15/10
Filed: 1990-12-11
Abstract: A method and apparatus for forming an article including a substrate layer (2), an outer layer (3) overlaying the substrate layer (2), the outer layer (3) having at least one predetermined area/region thereof covered by a further layer (8/9) of material(s) (usually different from that of the outer layer), in which method all of said materials (8, 9) are simultaneously applied to the outer layer (3). Following such application the substrate (2), the outer layer (3) and said material(s) (8, 9) are simultaneously so treated that in the finished article (6) the substrate, the outer layer and material(s) are integrally bonded together in such manner that the outer surface(s) of said material(s) does/do not protrude above the adjacent surface of the outer layer.
Patent GB-2251007-A (GB)
Title: Modular building assembly
Inventor: BOLT HARRY COLLETT
IPC: E04B1/343
Filed: 1990-12-17
Abstract: A modular building set comprises base modules (10) arranged to define the building perimeter, a floor module (11) arranged on said base modules, and wall modules (12) upstanding from said base modules, wherein each of said base modules (10) s formed by an elongate open box-section structure having a rebate defined by a horizontal lower support wall (15) and an adjacent vertical abutment wall (16) and further having a second horizontal upper support wall (17) at a level higher than that of the first support wall (15), and wherein each of said wall modules (12) is formed with an elongate open box structure having a rebate defined by a horizontal support wall (47) and an adjacent vertical wall (46), said floor module (11) being located and secured along a marginal region thereof within facing rebates of said base and wall modules respectively, said wall modules (12) being supported by the engagement of the horizontal support walls (15, 17; 47; 46) of the respective base module and wall module. <IMAGE>
Patent GB-2239623-A (GB)
Title: Fastener driving tool
Inventor: KERRIGAN JAMES E
IPC: B25C1/06
Filed: 1990-12-18
Abstract: A lightweight fastener driving tool 10 capable of being battery/mains powered utilizes a low cost fastener driving ram or blade 36 that is normally located in a nip 140 defined between a motor driven flywheel 24, 142 and an idler wheel 26. Actuation of a trigger 100 operated timing circuit energizes a solenoid 84, which controls a toggle mechanism 60 to adjust the position of wheel 26 relative to flywheel 24 to force blade 36 against flywheel 24 and thereby to close nip 140 to initiate the driving of blade 36 downwardly through nip 140. The timing circuit deenergizes solenoid 84 prior to the time that blade 36 exits nip 140 but toggle mechanism 60 maintains wheel 26 against blade 36 such that blade 36 continues to be driven by flywheel 24. When the top of blade 36 exits nip 140, wheel 26 can move towards flywheel 24 and toggle mechanism 60 releases wheel 26 so that it separates to open the nip 140. With nip 140 open and the downward movement of blade 36 halted by a lower bumper 112, blade 36 is returned to its non-actuated position by a double torsion spring 38 against upper bumper 50. The solenoid 84 may be disposed parallely or perpendicularly relative to the ram 36. The dimension of the open nip 140 may also be adjusted. <IMAGE>
Patent GB-2239693-A (GB)
Title: Fuel control valve construction
Inventor: KELLY SAMUEL T
IPC: F23N1/00
Filed: 1991-02-01
Abstract: In a fuel control valve construction a manually operable actuator (40) has a cam (41) for engaging a cam follower (43) on a lever (33) intermediate opposite ends thereof. One end of the lever is pivotally mounted to a housing (21) and the opposite end operates a main valve member (28). A spring (37) biases the lever (33) towards an "on" position that causes the main valve member (28) to open the main valve seat (26), but the lever (33) is held in an "off" position, in which the main valve member (28) is maintained against the main valve seat (26), by the cam (41) of the actuator (40) when this actuator is in an "off" position. In an "on" position of this actuator (40) the cam (41) permits the lever (33) to move under the force of the bias spring (37) to its "on" position. The position of the lever (33) is also determined, by a thermostatically controlled actuator (70, 107) which, in one operative condition, prevents the lever (33) from moving to its "on" pivoted position and thereby prevents opening of the main valve seat (26) even although the manually operable actuator (40) is in its "on" position. <IMAGE>
Patent GB-2252964-A (GB)
Title: Delivery of fastening elements such as screws
Inventor: HU PIN-YAO
IPC: B65G47/14
Filed: 1991-02-25
Abstract: A hand operated automatic fastening machine comprising a delivery chute 4 for collecting a single stream of screws for delivery to a spring biased gating 5 and discharge device which is selectively openable to permit the discharge of individual screws which are then fastened to a work piece by a screw driver 10. When the screw driver is fastening a delivered screw it simultaneously releases the next screw from the gating and discharge device and when the screw driver is moved upward out of fastening position the next screw is positioned for fastening. The screws may be fed to chute 4 from hopper 1 by a reciprocating dipper 3 driven by motor 31. <IMAGE>
Patent GB-2245683-A (GB)
Title: Pistons for engines or motors
Inventor: PARKER DAVID ALEX
IPC: F02F3/00
Filed: 1991-06-17
Abstract: The piston comprises a crown (12), and a skirt 30 made of plastics material secured to the crown. The crown (12) is formed integrally with a depending boss (16) arranged to receive a gudgeon pin (18) by which the piston is connected to a connecting rod (24). The skirt (30) encircles the boss (16) and is spaced therefrom. <IMAGE>
Patent GB-2246481-A (GB)
Title: Stator pole construction in an electric motor with improved torque ripple
Inventor: BURGBACHER MARTIN
IPC: H02K29/00
Filed: 1991-07-23
Abstract: A commutatorless direct current motor has a substantially cylindrical, external permanent magnet rotor having a plurality of north poles (12) and south poles (13). The rotor surrounds a substantially cylindrical stator (14) provided with a plurality of main poles (10) between which auxiliary poles (15) are interspersed. An annular gap (20) is defined between the rotor and the stator. To reduce magnetic or reluctance caused fluctuation of the motor torque each main pole (10) of the stator has an angular extent which substantially corresponds to that of a rotor pole (12, 13). Furthermore, the stator periphery is provided with protuberances (17) arranged such that permanently magnetically caused components of torque ripple are reduced. Contour corrections 16 are also provided. <IMAGE>
Patent GB-2248268-A (GB)
Title: Buckles and safety harnesses
Inventor: NICOD FREDERICK CHARLES
IPC: A44B11/25
Filed: 1991-08-22
Abstract: A buckle (6) and harness (4) includes shoulder strap portions (8A, 10A), lap strap portions (8B, 10B) and a crotch strap (12). The buckle (6) has a latch (not shown), openings (22, 24) and a blocking bar (26) and spring (28) preventing access to the opening (24). The strap portions are attached to the buckle (6) by tongues (16C, 18C; 44A, 46E) on attachment means (16, 18; 44, 46). The tongue (16C; 44A) are inserted first into the buckle (6) to displace the blocking bar, allowing the tongue (18C; 46E) to pass through slots (16D; 44B) and engage a latch (not shown) in slot (18D, 46F).
Patent GB-2250866-A (GB)
Title: Method of coating solder on a printed circuit
Inventor: FUJITA MINORU
IPC: H05K3/00
Filed: 1991-11-27
Abstract: A method of preparing a printed circuit comprises forming a wiring pattern on a substrate and coating a solder alloy including tin and load as major components on the wiring pattern by means of electroless plating. The substrate is dipped in a solution to wet it and then dipped in a plating solution including 0.1 mole/1 of tin, 0.01 mole/1 of lead, 0.2 mole/1 of organic sulfonic acid and 2 mole/1 of thiourea. A solder resist may be applied to those parts of the wiring pattern not to be coated with solder. The printed circuit may include a multi-layered substrate. <IMAGE>
Patent GB-2250545-A (GB)
Title: A working cylinder with end position attenuation
Inventor: KEMNER AXEL
IPC: F15B15/22
Filed: 1991-11-29
Abstract: A working cylinder with end position attenuation, comprises a cylinder chamber extending in the longitudinal direction, a piston (14) mounted so as to be displaceable therein, and cylinder ends (4) which close the cylinder and on at least one of which an attenuating stop (2) is arranged adjacent the cylinder. In order that the attachment and fixing of the attenuating stop (2) can be achieved in as simple as possible a fashion and with the easiest possible assembly, it is proposed that on the side of the cylinder chamber the cylinder end (4) comprises a recess (3) which extends in the longitudinal direction and the cross-sectional contour of which projects in a radial plane at least partially beyond the cross-sectional contour of the interior of the cylinder (5), that the attenuating stop (2) is formed in one piece and is composed of two adjacent portions (2', 2") in such manner that a first portion (2') possesses the cross-sectional contour of the recess (3) and is arranged within the recess (3) and that the cross-sectional contour of the other portion (2'') corresponds to the cross-sectional contour of the interior of the cylinder (5) and projects into the interior of the cylinder. Stop portion 2'' extends into the oval cylinder while stop portion 2' extends into the circular recess in the cylinder end 4. A screw adjustable throttle valve is provided in end 4. <IMAGE>
Patent GB-2263161-A (GB)
Title: Heat exchange device
Inventor: CLIFTON BRIAN
IPC: A23L3/36
Filed: 1991-12-17
Abstract: A heat exchanger member adapted to extract or impart thermal energy from or to a body eg of food, comprises: a substantially solid core member preferably of aluminium having bores (2) therethrough through which heat exchange medium can flow; and an outer cladding of stainless steel (1) over at least those areas of the member to be in direct contact with the body. Preferably, a vacuum draws the cladding onto the shape of the block. The heat exchanger member may form part of a horizontal or vertical plate freezer. In order to free food adhering to the cladding, a heating fluid may pass through the bores (2) to thaw the external faces of the frozen block. <IMAGE>
Patent GB-2262924-A (GB)
Title: Upper deck in a car-carrying railway wagon.
Inventor: MAENPAA OLAVI
IPC: B61D3/18
Filed: 1992-01-03
Abstract: The upper deck has an upwardly offset central section which fits within the wheel gauge 8 of cars so as to provide extra vertical loading capacity for cars having roof racks, or vehicles somewhat higher than a saloon car. The central section is connected to edge sections by transverse ramps to form a continuous load bearing structure. The edge sections are located under the car wheels with the central section being offset sufficient to exploit the ground clearance of cars to increase the permissible height of cars on a lower deck. <IMAGE>