baber/WOPTO huggingface dataset:
Patent GB-2125108-A (GB)
Title: Liquid supply vessel
Inventor: WATSON ANTHONY
IPC: F24D17/00
Filed: 1982-07-31
Abstract: A container (5), capable of being pressurised, is arranged vertically with an inlet pipe (7) which is connected in use to a supply of liquid under pressure, opening into the top and with an outlet (9) near to the bottom of the container. The container (5) has an internal height (h) such that with the outlet (9) closed liquid will rise in the container (5) only up to a level (20) at which the gas in the top of the container (5) is compressed to a pressure equal to the liquid supply pressure and then inflow ceases automatically. The buffer vessel may be used in a domestic water system for pressurising a hot water tank to mains pressure. Alternatively, with a further inlet pipe (7A) two liquids can be supplied for mixing in the container. Flow into the container is self regulating to equal the quantity of liquid drawn from the container. <IMAGE>
Patent GB-2105459-A (GB)
Title: Dual function cooking oven
Inventor: GOFF PAUL FREDERICK
IPC: F24C15/32
Filed: 1982-08-31
Abstract: A cooking oven has a cooking chamber surrounded on its back and two sides by a circulating zone (13), and a selectively operable fan disposed so as to draw air through an opening or openings (16) in the rear of the cooking chamber and recirculate it back into the cooking chamber through inlet openings (14) in the sides of the cooking chamber, and the oven incorporating a thermostat probe (28) located in a space (10) between inner and outer roof panels, and temperature regulating means effective to increase the temperature in the roof space when the fan is operating. By this means the temperature in the cooking chamber during a forced convection cooking mode can be reduced to a value substantially equal to that which obtains at the centre of the cooking chamber when the fan is inoperative for the same setting of the oven temperature control. The temperature regulating means may comprise an aperture permitting hotter gases from the circulating zone to pass into the space (10) or an electric heater in the space (10). <IMAGE>
Patent GB-2133532-A (GB)
Title: Light sensitive switch
Inventor: MOGAS GUILHERME YSENBOUT
IPC: H03K3/286
Filed: 1983-01-10
Abstract: A photosensitive switch for automatically dipping the headlights of a vehicle comprises a light dependent resistor 4 controlling the state of conduction of two cross coupled transistors T1 and T2 which control the operation of change-over relay 1 connected to the dipped and full beam circuits of the vehicle lighting system. A manually operable switch 5 is provided for the user to set whether the lights operate on full or dipped beam but this is overridden by the light dependent resistor 4 when the detected light level is in excess of a predetermined value. Thus in the presence of light from the headlights of oncoming vehicles, the vehicle headlights are automatically dipped and held in that condition but at other times the driver can select full or dipped beam. <IMAGE>
Patent GB-2132923-A (GB)
Title: Rotary cutting tools
Inventor: WHEELER DAVID JOHN
IPC: B27G15/00
Filed: 1983-01-12
Abstract: A flat bit for drilling holes in wood, steel and other such materials without the need for forming a pilot bore comprises a shank 1 to which can be secured releasably one of a series of differently sized cutting heads 3. The cutting head has two main cutting edges 19, 21 which extend outwardly from the base of a square pyramid 17 which forms a pilot cutter. <IMAGE>
Patent GB-2135846-A (GB)
Title: Current splitter
Inventor: BRIDGER PETER STUART
IPC: H03F3/30
Filed: 1983-02-04
Abstract: A current splitter is formed by a current source (CS), e.g. the output of a long-tailed pair, which feeds two resistors (R1, R2), one (R1) of which is connected to one output of the circuit, while the other (R2) is connected to the other output via the emitter-collector path of a transistor (Q1). A differential amplifier, such as an operational amplifier (OA1) has one input connected to the first output of the circuit while its other input is connected to the junction of the second resistor (R2) and the transistor. The output of the amplifier drives the base of the transistor. With this arrangement the current from the source (CS) splits between the resistors in a ratio dependent on the values of the resistors, and the current values are substantially independent of the output loads and voltages - as long as the circuit remains linear. In another arrangement, the amplifier is a pair of transistors (Q5, Q6) in long-tailed pair-like configuration connected to a current mirror (Q3, Q4). Also described are a number of circuits in which two current splitters such as referred to above are connected together in parallel. <IMAGE>
Patent GB-2121291-A (GB)
Title: Breast prosthesis
Inventor: HALL OLGA AUDRIE
IPC: A61F2/52
Filed: 1983-05-04
Abstract: A breast prosthesis for use where a radical mastectomy has been performed comprises a body 10 made of resilient foamed material. The body is domed when viewed sideways and pear-shaped when viewed in plan. A portion 12 at the narrow end of the pear-shaped covers the region where the lymph glands have been removed, while a bulged portion 13 on one side of the wide end of the pear-shape covers the area from which the muscles beneath the breast have been removed. <IMAGE>
Patent GB-2140565-A (GB)
Title: Magnetoelastic torque transducer
Inventor: BLOMKVIST KENT
IPC: G01L3/10
Filed: 1983-05-27
Abstract: A torque-sensing transducer comprises a sleeve (1) of soft magnetic material, attached concentrically and rigidly to an axle (4), a pair of excitation windings (10, 11), a pair of sensing windings (8, 9) and a magnetic housing (5) concentrically surrounding the windings and the axle. The sleeve is formed with two parallel, spaced-apart annular zones (2, 3), each provided with uniformly spaced-apart slits inclined to a generatrix of the surface of the sleeve. The slits in the two zones are oppositely inclined and lie in the range 30 DEG  to 60 DEG  to the generatrix. The excitation windings are series-connected and generate a magnetic flux in the sleeve in each respective annular zone. The measuring windings are connected in opposition, whereby the measuring signals from the two zones approximately cancel each other in case of zero axle torque. When the axle is subjected to a torque, the bars between the slits in the zones (2, 3) will be subjected to tensile and compressive stress, respectively, in the direction of the flux. This leads to a polarized magnetic unbalance, which results in a difference voltage from the measuring windings. After phase-sensitive detection, this difference voltage indicates the magnitude and sign of the torque. <IMAGE>
Patent GB-2124108-A (GB)
Title: Backing carpets
Inventor: SCOTT CHARLES MACK
IPC: D06B1/08
Filed: 1983-07-06
Abstract: In the adhering of a backing (15) to a carpet web (9), adhesive is applied to the web from an extrusion die (10) having an elongate outlet (11). Adhesive, which may be foamed, is supplied to the die (10) from a distribution pipe (12) via valved feed pipes (13). <IMAGE>
Patent GB-2143869-A (GB)
Title: Improvements in and relating to stranding machines
Inventor: WITNERDEN ALAN RICHARD
IPC: B21C47/24
Filed: 1983-07-12
Abstract: A device for use in loading a rotary stranding machine of the so-called fork construction comprises an L-shaped loading platform located laterally adjacent to the stranding machine to receive wire supply bobbins resting thereon. The loading platform is mounted for rectilinear upward sliding movement upon mountings which are in turn mounted for pivoting movement about a horizontal axis parallel to the rotary axis of the stranding machine. A jacking means is linked between a fixed anchorage and a part of the loading platform spaced from the horizontal pivotal axis whereby upon extension of the jacking means the loading platform is first tilted about the horizontal axis and then moved rectilinearly to bring the ends of the bobbin into alignment with loading pintles of the stranding machine.
Patent GB-2126444-A (GB)
Title: Position measuring apparatus
Inventor: JOHNSTON JAMES STEWART
IPC: G01D5/249
Filed: 1983-09-01
Abstract: The relative position of two elements is measured by reading a coded strip 11 fixed to one of the elements. The strip 11 carries code elements in a pseudo-random binary sequence (PRBS) which can be read by a photo-detector array 15. Magnetic and capacitative arrangements are also envisaged. The array 15 and suitable optics if necessary enable enough successive code elements of the PRBS to be read simultaneously to identify the position along the PRBS. The array 15 has several detecting elements for each code element or bit of the PRBS, so that the fine position of transitions or markings of the PRBS can be measured within one PRBS bit length. A comparator 17 compares the output of the array 15 with a portion of the PRBS from a PRBS generator 21. The generated PRBS is serially shifted through a register 18 and a counter 22 stores the number of shifts needed until a match is found. Applications are described in micrometers, pressure sensors, shaft encoders and others. <IMAGE>
Patent GB-2128860-A (GB)
Title: Induction heated conduit assembly e.g. a launder
Inventor: ELLIS ROBERT STANLEY
IPC: H05B6/02
Filed: 1983-10-19
Abstract: The assembly comprises a length of conduit 1 for conducting a fluid from an input 2 (e.g. at lead melting equipment) to an output 3 (e.g. at casting equipment) a substantial distance away. The conduit is divided into two fluid-conducting legs 4 and 5 at the input 2, which re-combine at the output 3. These legs form at least part of the secondary circuit of an induction heating system including a primary winding 8a, 8b, on a core 6 that passes between the legs 4 and 5. When power is supplied to the primary winding a high current is induced in the legs 4 and 5, which produces an essentially uniform heating effect along substantially the entire length of the conduit. <IMAGE>
Patent GB-2130167-A (GB)
Title: Packing cigarettes in soft packs
Inventor: BLACKALL VICTOR GEORGE
IPC: G01N35/00
Filed: 1983-11-01
Abstract: In a machine for packing cigarettes in soft packs having a pusher (6) to engage a block of cigarettes in a hollow mandrel (3) on a forming drum (1) and to transfer the cigarettes with the pack which has been folded around the mandrel, to a pocket (4) in a drying drum (2), the folded and glued end of the pack is supported during transfer. As illustrated a retractable member (7) associated with each pocket (4), provides said support. Alternatively, each drying drum pocket may be of such a length to receive two packs end-to-end so that a pack previously transferred to a pocket provides the necessary support for the next pack to be received in that pocket. Adhesive may be applied to the folded end closure of the pack in the regions (31-34) by a gravure gummer to cause adherence of the first end closure flap to be folded to an inner wrapper. <IMAGE>
Patent GB-2150095-A (GB)
Title: Paddle driven water craft
Inventor: QUINN EDWARD JAMES
IPC: B63H16/00
Filed: 1983-11-24
Abstract: A water craft comprising rotary propulsion means such as at least one paddle wheel (3) mounted for rotation to drive the boat, and at least one pivotally mounted drive lever (7) coupled through a ratchet mechanism to the paddle wheel, the arrangement being such that angular movement of the lever in a first sense (preferably downward) about the pivot is coupled by the ratchet mechanism to produce rotation of the wheel and angular movement of the lever in an opposite sense without countering the rotation of the wheel is permitted by the ratchet mechanism. <IMAGE>
Patent GB-2133328-A (GB)
Title: Straightening machine
Inventor: BRESCIANI PAOLO
IPC: B21D3/08
Filed: 1983-11-29
Abstract: In a machine for cold-straightening tubes or rods having a circular cross- section the straightening tools include at least one ring (2, 3, 4) with a convex inner surface. There are preferably three of the said tools, substantially coaxial with the tube or rod (1), but in such a way that their axis are skew with respect to the axis of the tube at an angle ( alpha ) which is the same for all of them and, at least for the two outer rings (2, 4), which are driven by a motor and caused to rotate at the same speed, is oriented in the same direction and gives rise to a helicoidal movement of the tube (1). The middle ring (3), on the other hand, is idle in the sense that it is free to rotate around the tube or rod (1) to be straightened, but is constrained in the axial direction and with regard to height, so that it imparts to the tube or rod (1) a downward force which approaches the yield limit. <IMAGE>
Patent GB-2151869-A (GB)
Title: Optical amplifiers
Inventor: BYRON KEVIN CHRISTOPHER
IPC: G02F1/35
Filed: 1983-12-16
Abstract: Amplification in an optical fibre transmission system at a wavelength lambda s is obtained by coupling the fibre of the transmission system to the input of a single-crystal fibre laser 1, the output of which is coupled to a length of optical fibre 2 comprising an amplifier fibre. The single-crystal fibre laser and amplifier fibre comprise an optical amplifier. The fibre laser is pumped by LEDs 3 and emits pump signals at a wavelength  lambda p the signal wavelength  lambda s being one Stokes shift away from the pump wavelength. When the power emerging from the fibre laser at wavelength  lambda p is large enough, the pump signal interacts with the signal of wavelength lambda s in the amplifier fibre and gain is obtained at the signal wavelength  lambda s. <IMAGE>
Patent GB-2134270-A (GB)
Title: Piezoelectric sensors
Inventor: ROCHA HENRY ALBERT FERREIRA
IPC: G01R15/20
Filed: 1984-01-20
Abstract: The vibration and shock sensitivity of a piezoelectric sensor is reduced by connecting the electrodes of a primary sensor 11 in voltage opposition to the electrodes of a compensating secondary sensor 12 having a substantially similar piezoelectric element mounted on a common substrate with the primary current sensor. The piezoelectric element of the secondary sensor is loaded with a distributed mass approximating the distributed mass effectively loading the piezoelectric element of the primary sensor. The primary sensor 11 senses current I in conductors 14a, 14b in the arrangement shown. <IMAGE>
Patent GB-2150471-A (GB)
Title: Abrasive throwing wheel
Inventor: MACMILLAN WILLIAM ROBERTSON
IPC: B24C5/06
Filed: 1984-04-05
Abstract: An abrasive throwing wheel comprises a backplate, a plurality of equi-angularly spaced radially-extending, throwing or paddle blades and a central impellor, all formed as an integral unit, and with the blades configured to render the throwing wheel operationally bi-directional. The throwing wheel may be cast from "hard" metal generally a high chrome content alloy; or it may comprise a metallic core with a plastics coating (preferably an elastomeric polyurethane coating) moulded therearound; or it may be formed wholly of plastics, preferably an elastomeric polyurethane coating.
Patent GB-2142358-A (GB)
Title: Security hatch system
Inventor: MACKINNON HUGH GORDON
IPC: E06B5/01
Filed: 1984-06-15
Abstract: This invention relates to a hatch system suitable for use in closing a loft access opening, said hatch comprising a hatch surround 5 and a hatch panel 23, securable in a closed position to said hatch surround 5 by security lock means 26, and movable to an open position. The security lock means is disposed substantially on the reverse side of said hatch panel 23 and hatch surround 5, which have mutually overlapping edge portions formed and arranged for resisting insertion of lever means therebetween. The hatch surround 5 has on its reverse side upstanding clamping means 13-18 formed and arranged for clamping structural material 2 at or in close proximity to the opening at opposite sides thereof, so as to secure said hatch surround 5 in position around the opening whereby the mounting and locking means of the hatch are substantially screened from abuse. <IMAGE>
Patent GB-2144029-A (GB)
Title: Drawer support and runner
Inventor: FIRTH ANGUS CHRISTOPHER
IPC: A47B88/04
Filed: 1984-07-25
Abstract: A drawer support and runner comprising a member having opposed vertical recesses or slots 26,28 for engaging vertical members of a wire basket which constitutes a drawer, a first horizontal recess or slot 30 for engaging a horizontal member of said drawer, and a second horizontal recess or slot 32 extending parallel to said first horizontal recess or slot and being for engagement with a drawer support frame. The drawer support and runner is used in combination with a drawer, and a drawer support frame for supporting said drawer by a plurality of said members, said support frame comprising a plurality of generally U-shaped frames (4,6,8,10, Fig. 1) and having a plurality of support rails adapted to be engaged by said members. <IMAGE>
Patent GB-2148161-A (GB)
Title: Unreeling apparatus
Inventor: ADAMS ANTHONY NOEL
IPC: B21D43/28
Filed: 1984-10-11
Abstract: Unreeling apparatus (1) for unreeling a length of elongate material e.g. wire (6), comprises gripping jaws (2) spring biassed to grip the wire (6). Support means (3) carries the gripping jaws which are rotatable relative to said support means. The unreeling apparatus (1) may be used in a machine for cutting the wire (6). The support means is reciprocated by a motor driven haulage rope between a cutting statum, where a blade (11A) cuts the wire and the jaws pick up a length leading end from a collecting cone at a coil supply, and a clamping station, where the wire length leading end is held by a fixed clamp whilst the other end is cut by the blade. <IMAGE>
Patent GB-2165659-A (GB)
Title: Transferring video to cine
Inventor: CHASE ROLAND GEORGE FRANK
IPC: H04N5/87
Filed: 1984-10-17
Abstract: Images recorded on video tape are transferred to 35 mm cine film in two successive runs, odd numbered frames being transferred in one run and even numbered frames being transferred in the other run. The images on the video tape are displayed by the PAL video display system and transferred using a 35 mm cine camera and accurate synchronisation. The method allows a comparatively long time between frame exposures for frame advancement.
Patent GB-2166774-A (GB)
Title: Telescopic waling parts
Inventor: HARRIS JOHN
IPC: E02D17/08
Filed: 1984-11-08
Abstract: A telescopic waling system comprises a plurality of pivotally connectable telescopic units (A) each of which internally incorporates an hydraulically operable ram by which a movable end of the unit can be extended and retracted. Also there will normally be provided at least one fixed length extension piece (B), or a range thereof of differing standard lengths, adapted to be pivotally connected at each end to the telescopic units (A). <IMAGE>
Patent GB-2160006-A (GB)
Title: Magnetic head
Inventor: KOBAYASHI SADAYOSHI
IPC: G11B5/17
Filed: 1984-11-28
Abstract: A magnetic head assembly has a structure such that a shield cover (3'') is sandwiched between a head body (A') (eg Fig 3B) and a printed circuit board (5'') provided at the rear surface of said head body (A'). The shield cover (3'') is provided with an L-shaped bending part (3c'') and this is engaged with the printed circuit board (5''). Accordingly, these parts can be assembled easily without using screws and bonding agent. An alternative embodiment is detailed (Figs 2A, B). <IMAGE>
Patent GB-2168421-A (GB)
Title: Unlocking mechanism in a seat for vehicles
Inventor: KANAI MASATATSU
IPC: B60N2/16
Filed: 1984-12-12
Abstract: An adjusting mechanism for car seats comprises a control lever 1 which can be drawn out of a tubular body 31 and includes an elongate slot 10 disposed lengthwise of the control lever and having offset portions, the slot being engageable by one end of a pivoted latch 2 whereby outward movement of the control lever 1 displaces the sliding pivot 21 between the latch and the control lever in a direction transverse the movement of the control lever, so as to release the latch from an engagement member 4. <IMAGE>
Patent GB-2173618-A (GB)
Title: Alarm monitoring installation
Inventor: CARNEGIE PETER KHIN GUILLUM
IPC: G08B26/00
Filed: 1985-04-12
Abstract: The alarm monitoring network 1 consists of a central control unit 2 and alarm modules e.g. 3,4,5 and 6 linked together in parallel configuration by a transmission line 7 of two coaxial cables 8 and 9. To address the modules, central control unit 2 outputs a pulsed voltage signal to the transmission line 7 and notes the consequent current variations caused by the modules reacting in turn. Each module is addressed by two pulses, allowing measurement firstly of the line alone, and secondly of the line together with the sensing circuitry of the module. The pulsed signal may be used to give some modules commands additional to the addressing instructions, e.g. further interrogation of its condition or instructions on changing its mode of operation. <IMAGE>
Patent GB-2174943-A (GB)
Title: Breakstem fastener installation tool
Inventor: FREARSON WILLIAM HARVEY
IPC: B21J15/06
Filed: 1985-05-10
Abstract: A breakstem rivet installation tool includes an airflow ejector for ejecting broken-off stems through a rear pipe (23) mounted on the tool housing (11). The ejector is provided by the annular gap (28) between the front-end of the rear pipe (23) and the rear-end part (26) of an extension pipe (25) mounted on the reciprocable stem-pulling draw rod (13). In order to adjust the rate of air-flow through the ejector, the rear pipe (23) is axially adjustable to vary the size of the annular gap (28). To this end, the pipe (23) is screw-threaded into the housing, and its position can be locked by a lock nut (62). The range of adjustment of the ejector flow includes complete shutting off the air flow.
Patent GB-2181289-A (GB)
Title: Portable sign
Inventor: LUNDY ROBERT JOSEPH
IPC: G09F15/00
Filed: 1985-10-03
Abstract: A portable sign has a support 4 formed by metal extrusion with guide-channels 8 which extend longitudinally. Legs 14 are pivotally and slidably attached to runners (36, Figure 2) in the guide-channels to allow them to slide from a first, storage, position in which they are substantially parallel to the support to a second position in which they extend outwardly. Brackets 20 prevent the legs pivoting outwardly whilst in the first position and a stretchable strap 28 retains the legs in that position e.g. for transportation. The support may be hollow, to receive a rolled-up screen 40 which, when un-rolled, may be mounted on hooks 42, 44 on the support to display suitable information. <IMAGE>
Patent GB-2168383-A (GB)
Title: Anodizing metals
Inventor: MELODY BRIAN
IPC: H01G9/004
Filed: 1985-12-06
Abstract: Valve metals eg Al, Ti, Ta, Zr, Nb and valve metal based alloys are anodized efficiently in a substantially non-aqueous formation electrolyte comprising a polar aprotic solvent and an electrolyte-soluble source of phosphate ions to provide high quality dielectric oxide coatings. Titanium and titanium based alloys may be anodised at a current density of not greater than 2 milliamperes/cm<2>. Preferred formation electrolytes for use in this process contain phosphoric acid and an acid-ionizing amine eg pyridine or urea or tetramethyl urea and have resistivities in the range of 1,000-30,000 ohms per cubic centimeter and breakdown voltages in excess of 200 volts. Suitable polar aprotic solvents include dimethyl formamide, dimethylsulfoxide, N-methyl-2-pyrrolidone and 4-butyrolacetone.
Patent GB-2185688-A (GB)
Title: Device for cleansing ear canal
Inventor: CLARKE TREVOR PETER ANDREW
IPC: A61B1/227
Filed: 1986-01-25
Abstract: A medical instrument for cleansing an ear canal consisting of a speculum which can be releasably connected to a conventional auriscope to allow inspection of the ear canal, the speculum being provided with a nozzle through which cleansing fluid is injected into the ear canal, and the nozzle is connected to a pump mechanism which supplies the cleansing fluid under pressure thereto. <IMAGE>