baber/WOPTO huggingface dataset:
Patent GB-2071368-A (GB)
Title: Generator voltage regulation
IPC: H02P9/34
Filed: 1981-03-04
Abstract: A voltage regulator for regulating the output voltage of a generator by varying the signal applied to the field coil of the generator comprises a magnetic amplifier connected in series with an exciter machine, and a thyristor bridge controlling the shunt field of the exciter. The dc control voltage for the magnetic amplifier and the input to the regulator are both derived from the output voltage of the generator. Changes in the output therefore cause the regulator to alter the condition of the exciter machine and hence the signal to the field coil of the generator, so as to return the output of the generator to the desired level. <IMAGE>
Patent GB-2101191-A (GB)
Title: Fasteners for a hollow body
Inventor: HICKLING DAVID JOHN
IPC: H04M1/02
Filed: 1981-06-12
Abstract: Fasteners are provided for two parts (10, 12) of a body which are wholly contained within the body and not visible when the two parts are joined. 
<??>The fastener comprises a resilient member (16) secured inside the first part (12) of the body projecting internally of the body and an orifice (24) formed inside the second part (10) of the body. The resilient member is shaped to enter the orifice and verge the two parts together and to permit separation of the two parts by a relative pivoting movement adjacent to the obutting joint between the parts whereby the resilient member is retracted from the orifice.
Patent GB-2202079-A (GB)
Title: Improvements in or relating to gas lasers
Inventor: RUTT HARVEY NICHOLAS
IPC: H01S3/223
Filed: 1981-06-17
Abstract: A gas laser for use in the separation of uranium isotopes in which the lasing medium includes a monohaloacetylene.
Patent GB-2510312-A (GB)
Title: Incendiary projectile and metallothermal heat charge therefor
Inventor: SCHIESSL ALOIS
IPC: C06C9/00
Filed: 1981-06-25
Abstract: An incendiary projectile has an incendiary-fragmentation charge which comprises fragments of a high-melting metal embedded in a metallothermal heat charge. Ignition of the heat chargecauses heat to be transferred to the metal fragments and after a certain delay these are dispersed by an explosive charge. In order to maintain the disposition of the fragments during the heating thereof the metallothermal heat charge comprises 55 to 80 percent by weight of tungsten trioxide and 5 to 25 percent by weight of titanium dioxide as oxidizing constituents, and 15 to 25 percent by weight of aluminium as reducing metal.
Patent GB-2082930-A (GB)
Title: Magnetic stirring element
IPC: B01F13/08
Filed: 1981-08-13
Abstract: A magnetic stirring element (4) for use in magnetic stirring apparatus (2, 4, 6, 8), comprising a symmetrical body member of an inert material such as polytetrafluoroethylene in the form of a pair (12, 14) of opposed cones or a pair of opposed segments of a sphere having a common base which comprises the central plane of the element (4). A bar magnet (16) is centrally located in the body member, the arrangement being such that, in use and on rotation of a horizontal drive magnet (6) of the apparatus about a vertical axis (XY), the element (4) is spun within the vessel (2) about a central axis (PQ) extending perpendicular to said central plane of the element (4) and is also rotated around the vessel (2) about said vertical axis (XY). <IMAGE>
Patent GB-2082678-A (GB)
Title: An hydraulic actuator for a vehicle internal shoe-drum brake
IPC: F16D65/22
Filed: 1981-08-20
Abstract: An hydraulic brake actuator comprises opposed pistons (5, 6) which work in bore portions (3, 4) in a housing 1 and fluid pressure in a pressure chamber (7) urges the pistons (5, 6) in opposite directions to separate adjacent ends of a pair of brake shoes. A pressure proportioning valve (12) controls communication between pressure spaces (8, 9) constituted by the pressure chamber (7). The valve (12) is normally open to equalise the pressure in the pressure spaces but closes at a predetermined pressure so that any further increase in pressure is operative in only one pressure space, the pressure in which space acting to keep the valve (12) closed. In use in a brake of the one-leading one-trailing shoe-drum type the increased pressure acts on the piston which applies the trailing shoe to the drum in order to equalise the torque. <IMAGE>
Patent GB-2105299-A (GB)
Title: Carrier bag
Inventor: NORMAN JAMES PATRICK
IPC: B65D33/12
Filed: 1981-09-04
Abstract: A carrier bag comprises an envelope (1) made of flexible synthetic plastics material with a pair of flat synthetic plastics material spreaders (2) heat welded to the inside of its mouth. These spreaders (2) are formed with complementary projections (4) and holes (5) engageable one with another to maintain the spreaders in parallel contact when the bag is closed. Each of the spreaders (2) has a pair of spaced apart upstanding apertured lugs (3) with the apertures (3a) in the lugs (3) of one spreader (2) aligned with the apertures (3a) in the lugs (3) of the other spreader (2). A carrying handle in the form of an endless cord (7) passes loosely through both pairs of aligned apertures (3a). <IMAGE>
Patent GB-2107667-A (GB)
Title: Lamp suspension
Inventor: SUZUKI HIROYUKI
IPC: F21S8/00
Filed: 1981-10-20
Abstract: A lamp suspension system for telescopically adjusting a lamp suspension assembly by means of flat wires comprises a take-up means for winding or unwinding the wires. A sensor lever (232) which is swingably mounted above and biassed towards the take-up means has pawls (236, 237) that are engaged with a ratchet wheel (208) fixed to the take-up means when the sensor lever (232) is swung toward the take-up means. A pulley (239) at an end of the sensor lever (232) engages the wires and a limit switch (242) detects any swinging motion of the sensor lever in the direction away from the take-up means to arrest rotation thereof. An unwinding sensor lever (252) swingably mounted below, and biassed towards the take-up means has a roller which contacts an outer edge of the take-up means and also has a pawl (258) engageable with the ratchet wheel (208) when the roller is engaged in a recess (217) at the outer edge of the take up means, once a slider member has unblocked the recess. <IMAGE>
Patent GB-2086420-A (GB)
Title: Briquetting coal by vibration without use of binders
IPC: C10L5/04
Filed: 1981-10-22
Abstract: The Fuel briquette comprises up to 100% coal in particle and/or powder form compressed or compacted by vibration. By the production of the briquette coal in particle and/or powder form possibly mixed up with another material is poured into a mould cavity and the content thereof is vibrated to compaction and the fuel briquettes thereby Formed in the mould cavity are removed from the mould cavity. The apparatus comprises at least one mould cavity, a vibration means for the vibration of the walls thereof, means for filling the mould cavity with briquette material and means for removing the compressed or compacted content from the mould cavity. Thereby durable briquettes can be produced simply and at low costs without a binding agent being necessary. Furthermore apparatuses can be used being known for the production of concrete stones, tiles and sand mouldings.
Patent GB-2087598-A (GB)
Title: Automatic Control of Machine Tools
IPC: G05B19/416
Filed: 1981-11-16
Abstract: Conventional automatic machine tool control installations 6 are updated by the local installation of an adapter unit MTLU able to receive a modern form of digital control data (from computer 7) indicative of required tool feed rates along respective tool drive axes, to decode this data to form a speed signal and vector signals indicative of distances to be moved along the respective axes between successive incremental tool positions and to form under the control of these signals respective pulse trains of which the repetition rate and phase are appropriate to drive directly the machine tool. <IMAGE>
Patent GB-2097486-A (GB)
Title: Bearings
IPC: F16C33/20
Filed: 1982-04-02
Abstract: A self-lubricating bearing overcomes a debilitating ploughing action, by having the lubricating material 31 disposed on the inner race 23 instead of on the outer race 25. The lubricating material is in the form of solid, organic lubricant which may be in the form of one or more of a solid polyester, a polyamide, polyphenylene sulphide, polyarylsulphone, a polyfluorocarbon, a cured acrylate, or a woven fibre matrix impregnated with a cured acrylate. <IMAGE>
Patent GB-2101961-A (GB)
Title: Vertically movable and tiltable vehicle lifting fame
Inventor: HENRIKSSON ARNE
IPC: B60P1/34
Filed: 1982-05-10
Abstract: A mechanism in lorries of the kind which are equipped with a lifting frame (5) which is mounted on the chassis (1) to support a removable load carrier (6). A tilting cylinder (10) is arranged to raise, lower and to tilt the lifting frame (5), said frame provided with at least one pair of forwards and rear link arms (2, 4). To control the tilting movement, the mechanism is provided with means to disengage the pivot connection (15) between the lifting frame (5) and the forwards (upper) ends of the front pair of link arms (2). The lower ends of the rear pair of support arms (21) are articulated to the chassis (1) behind and adjacent the chassis wheel axle and a tilting strut (24) extends essentially rectilinearly from a forwards pivot point (25) on the chassis (1) to a pivot point (20), in the lowered position of the frame 5. The tilting strut (24) is equipped with both a toggle joint (26) and means (28) in which engage locking means on the lifting frame (5) prior to initiation of a tilting movement. <IMAGE>
Patent GB-2098964-A (GB)
Title: Box with clip fasteners
IPC: B65D6/26
Filed: 1982-05-19
Abstract: A box having removable side panels (16), with outwardly projecting battens (15) along adjacent sides of panels secured together by L-shaped spring wire clips (9, 10) with rigid end tabs (8) which hook over the battens, has each clip held captive to a batten by one of the clip tabs engaged as a hinge pin in a hinge knuckle (12) formed by the rolled edge of a hinge plate (13) secured to the batten. <IMAGE>
Patent GB-2125916-A (GB)
Title: Turnbuckle
Inventor: DAGGER NORMAN PHILLIP
IPC: F16G11/12
Filed: 1982-08-26
Abstract: A turnbuckle is constructed by two facing longitudinal strip steel members with abutting apertured right angle end portions 3,3' and 4,4' carrying threaded bosses 7,'' to receive the threaded force applying members. <IMAGE>
Patent GB-2137126-A (GB)
Title: Trepanning Cutter
Inventor: KNIGHT PHILIP HENRY
IPC: F16L41/06
Filed: 1982-10-19
Abstract: The cutter (19) has a cutting point (35 or 37) located radially inwardly of the outer perimeter of the cutting portion (23). Preferably it is in the form of an aluminium bronze cutter plug (19) having an externally threaded portion (21) and an unthreaded portion (23) wherein may be provided a pair of generally longitudinally extending slots, which serve to retain the material which is removed during the cutting operation. The arcuate edges (29 and 31) so formed are machined at an angle to the horizontal and bevelled at (33) to form the cutting points (35 and 37). Such a cutter plug is especially useful in under-pressure drilling of a plastics (for example, PVC) pipe (5) (Fig. 1 not shown). <IMAGE>
Patent GB-2113259-A (GB)
Title: Rapier loom
Inventor: PORTER IAN
IPC: D03D47/46
Filed: 1982-12-30
Abstract: In order to maximise utilisation of a rapier loom such loom is provided with a rapier mechanism (37) at one side thereof which is adjustably operable throughout the full loom width or throughout a part only thereof, that a double selvedge mechanism (38) be removably positioned intermediate the sides of the loom for operation with the aforesaid rapier mechanism, and that a further rapier mechanism (37) be provided at the opposite side of the loom for cooperation with the double selvedge mechanism (38). The double selvedge mechanism (38) may, when weaving a single fabric, be sitable adjacent that side of the loom opposite to the first mentioned rapier mechanism for cooperation therewith, or a separate selvedge mechanism may be provided. <IMAGE>
Patent GB-2125884-A (GB)
Title: Hatch or rooflight opening mechanism
Inventor: STRANGE ANDREW WILLIAAM
IPC: E05F1/10
Filed: 1983-02-04
Abstract: A mechanism for effecting pivotal motion of a hinged member, typically a hatch or rooflight 5, comprises a pair of cranked lever arms (10, 11) interlinked by two gas springs (17, 18). One of the lever arms is pivoted to a strut 9 of the rooflight 5 and the other to a fixed support 3. When a catch is released the first spring (17) operates first by virtue of its greater strength and moves the rooflight 5 through an initial opening angle. The rooflight continues to move through its inertia on the second spring (18) then operates to complete the opening movement. The rooflight 5 may be opened in response to a fire or smoke detector which electrically releases a latch. <IMAGE>
Patent GB-2139089-A (GB)
Title: Weight-bearing orthosis
Inventor: DREW JOHN ALAN
IPC: A61F5/01
Filed: 1983-03-21
Abstract: A shell 1 is shaped so as to support the knee and the proximal part of the leg below the knee. It comprises an anterior portion 2 and a posterior portion 3 of thermosoftening plastics, e.g. polypropylene, which are connected together at an adjustable height relative to each other. The posterior portion 3 is connected to supporting means such as a posterior leaf spring 16. <IMAGE>
Patent GB-2122813-A (GB)
Title: An explosion- or flame-proof cam-operated ganged switch
Inventor: SCHWARZ GERHARD
IPC: H01H1/58
Filed: 1983-05-31
Abstract: A switch with a selector shaft controlling cams for actuating mechanical and/or electronic switching elements (22), disposed in housing elements arranged in a plurality of planes (12, 14) has a switch latch (16) is provided below the planes and a cover (10) above the planes (12, 14). The shaft (20) extends from the switch latch to the cover and projects beyond the latter, serves to actuate the individual switching elements by way of cam discs. Terminals (126-134) on the cover 10 for connection of the individual switching elements with the exterior are connected by lugs extending parallel to the shaft (2) within the housing elements (22) in openings (50, 52), which are arranged on both sides with respect to their plane of symmetry. The connecting terminals (70, 96) are arranged at the cover inside the outer contour of the switch. <IMAGE>
Patent GB-2143893-A (GB)
Title: Moving side curtains of trailers
Inventor: REAST THOMAS ROBERT JOHN
IPC: B60J5/06
Filed: 1983-07-20
Abstract: A mechanism for moving the side curtains of a trailer comprises drive means (9) coupled to a drive shaft (7), an auxiliary shaft (5) rigidly connected to the side frame, and transfer means (6) coupled to the drive shaft (7) and the auxiliary shaft (5) to transfer rotation of the drive shaft (7). The auxiliary shaft (5) comprises at least two separate colinear shaft pieces (11, 12, 13, 14), each piece being connected to the adjacent piece by means of a universal joint (15, 16, 17) the transfer means (6) being coupled to only one shaft piece (13), rotation being imparted along the auxiliary shaft (5) by the or each universal joint (15, 16, 17). <IMAGE>
Patent GB-2125357-A (GB)
Title: Conveyor belt scraper mounting
Inventor: STOCKTON NEVILLE REUBEN THOMAS
IPC: B65G45/16
Filed: 1983-08-02
Abstract: A conveyor scraper assembly includes a track arrangement (10) which is adapted for location beneath a conveyor belt, a carriage (12) which is adapted for engagement with and sliding movement on the track arrangement (10), means (26) for locking the carriage (12) to the track (10), a plurality of aligned scraper blade assemblies (42) and springs (52) resiliently connecting the blade assemblies (42) to the carriage (12). <IMAGE>
Patent GB-2145983-A (GB)
Title: Device to assist a wheelchair surmount steps kerbs and the like
Inventor: BIDDLE CHRISTOPHER RAYMOND
IPC: B62B5/02
Filed: 1983-09-02
Abstract: The device comprises a transverse member attachable to the wheelchair and pivotally mounting a sector-like member (15) which presents an abutment surface (26) spaced from the pivotal axis of the sector-like member by a distance greater than the radius of the front wheels (17) of the wheelchair. Biasing means e.g. helical springs are provided to bias the sector-like member (15) into a position so that its abutment surface (26) is forward of the leading part of the front wheel (17) of the wheelchair when in a normal running position. <IMAGE>
Patent GB-2130445-A (GB)
Title: Latching arrangement for electrical connectors
Inventor: CUNLIFFE ROBERT LEONARD
IPC: H01R13/627
Filed: 1983-09-28
Abstract: A latching arrangement for securing an electrical connector to a printed circuit board (1), Figure 1 (not shown), comprises a locking cam 2 attached to the board, a retaining collar 3 clipped to the board, and a connector 6 comprising a connector housing 7 having at least one resilient latching finger 8 which engages and latches to the locking cam to secure the housing to the board, the or each latching finger being adjacent a corresponding groove 9 in the retaining collar, said latching arrangement having means 12 or 17 for increasing the pressure on the or each latching finger above the pressure generated by the latching of the latching finger(s) to the locking cam as the or each latching finger engages and passes over the locking cam. In one embodiment, Figure 3B, the or each finger 8 is formed with a flexible extension 12 which, as the finger is pushed over the cam 2, engages the inner wall 13 of the corresponding groove in the collar 3. In another embodiment, Figure 5A, a flexible leaf 17 is positioned in the groove 9 to engage the finger 8 as it passes over the cam 2. <IMAGE>
Patent GB-2150981-A (GB)
Title: Apparatus and method for pumping a fluid
Inventor: LOW ROBERT GRAHAM MALCOLM
IPC: F04C11/00
Filed: 1983-11-10
Abstract: Apparatus for pumping a fluid (4) from a reservoir (3) comprising a pipeline (1), a first pumpe (7) arranged near an entrance of the pipeline for pumping fluid from the reservoir along the pipeline and a second pump (13) arranged near an exit (11) of the pipeline and operable to regulate flow of fluid out of the exit, the first pump (7) being adapted to develop fluid pressure in that portion of the pipe which is between the said two pumps and the second pump being adapted to pump fluid at a given rate from that portion so as to reduce or tend to reduce the pressure. The second pump (13) may be of the gear type driven by a stepper motor (15) controlled by a micro-computer system (17). <IMAGE>
Patent GB-2148854-A (GB)
Title: A document conveyor system
Inventor: WADDELL GEORGE MUIRHEAD
IPC: B65H5/06
Filed: 1983-11-15
Abstract: A conveyor for transporting a document (16) around a curved track (10) includes a continuous boundary wall (20) or an array of guide cylinders provided on the outside of a corner around which the track passes. A breaking cylinder (30) which is rotated preferably with the same surface velocity as the document (16) constricts the document (16) against the boundary (20) and opens out any longitudinal folds (22) therein to reduce the mechanical strength which they cause in the document (16). A drive mechanism (28) then fattens the document (16) against the boundary (20) and renders the document (16) flexible for the continuation of its transportation around the curved track (10). Dog-ears on the leading edge of a document (16) are folded back against the document (16) or smoothed over to prevent any impediment to further document transporting. <IMAGE>
Patent GB-2158620-A (GB)
Title: Power control for radio transmitters
Inventor: CLAYDON MARTIN
IPC: H03G3/30
Filed: 1984-05-08
Abstract: In radio transmitters, particularly mobile transmitters, it is necessary to regulate the output power in respect of temperature variations, supply voltage variations and operating frequency variations. If the r.f. power amplifier (14) is connected to a matched load then by monitoring the output power at the output of the power amplifier (14) is sufficient. However in the event of a mismatch due to a fault then a standing wave is set up between the power amplifier (14) and the fault. If a voltage null occurs near the monitoring point then the power amplifier (14) can be driven hard-on causing permanent damage to or the destructive breakdown of the power transistors. However this disadvantage is avoided if the output power is monitored at two points (42, 44) separated by substantially [((2n+1)/2) PARALLEL ] radians where n is zero or a positive integer, at the band centre frequency, and the higher of the monitored readings used to control the drive to the power amplifier (14). Preferably n is zero so that the bandwidth over which power control can be exercised can be the greatest.
Patent GB-2159580-A (GB)
Title: Sliding-vane rotary pump
Inventor: SEVIC MILAN
IPC: F04C14/14
Filed: 1984-05-29
Abstract: Inlet and outlet ports for the working fluid are formed in stator end-walls, or "lids", c which can be turned about the axis of the rotor d so as to vary the nett displacement of fluid by the vanes. <IMAGE>
Patent GB-2148052-A (GB)
Title: Switch mounting structure
Inventor: NARAHASHI TORU
IPC: H01H9/02
Filed: 1984-10-03
Abstract: A switch mounting structure includes a switch casing (10) and a mounting frame (11). The switch casing (10) has flanges (10a) extending from the upper surface thereof, resilient arms (10c) formed on side surfaces of the casing (10), ridges (10b) formed on the upper portions of side surfaces of the casing (10), and recesses (12) formed near the upper portions of the ridges (10b). The recesses (12) receive the shavings of the ridge surfaces when the switch casing (10) is press fitted into a mounting hole (11a) of a mounting frame (11) having a diameter which is slightly smaller than the distance between the ridges (10b). The switch casing (10) is mounted on the mounting frame (11) in such a manner that the mounting frame (11) is clamped by the flanges (10a) and the resilient arms (10c). <IMAGE>
Patent GB-2154213-A (GB)
Title: Cartons for easter eggs and the like
Inventor: BANCROFT KEITH
IPC: B65D5/50
Filed: 1985-02-15
Abstract: A carton for an article such as a chocolate Easter Egg is erectable from a lay flat condition to receive the article on an internal platform 44 made up of folded sections of sheet material 28, 30 adhered to the adjacent side walls 12, 16. Glue flap portions 20A, 22A adhered to adjacent platform-forming portions 40 cause automatic erection of the members 44 of the platform on erecting the carton from the lay-flat condition. <IMAGE>
Patent GB-2155382-A (GB)
Title: Stitch welding of wire to a printed circuit board
Inventor: WERY M JEAN CLAUDE
IPC: H05K3/34
Filed: 1985-03-13
Abstract: As a first electrode E1 carries the insulated wire 24 towards a conductive pad P1 on a printed circuit board, a plunger PL causes a right angle to be formed in the wire. A second electrode E2 then moves with the first electrode until the second electrode contacts the pad. The first electrode then continues to move to cause the insulation on the wire to be broken and the first electrode, the wire and the pad to come into electrical contact whereby the wire can be resistance welded to the pad by passing an electrical current between the two electrodes. <IMAGE>
Patent GB-2158834-A (GB)
Title: Thermosetting moulding compounds on the basis of resole
Inventor: BRABER HANS PIETER
IPC: C08K3/30
Filed: 1985-05-14
Abstract: Thermosetting resin composition on the basis of resole, filler and condensation catalysts possibly with thickener(s), glass fibre and other usual additives. At least a portion of the filler is a water-binding agent which does not become essentially water-binding until above a temperature of 50 DEG C. The thermosetting resin compositions are preferably used as moulding compounds, such as, in particular 'Bulk moulding compounds' (BMC), 'Dough moulding compounds' (DMC) or 'Sheet moulding compounds' (SMC).   The water-binding agent is suitably gypsum anhydrite.