baber/WOPTO huggingface dataset:
Patent GB-2109531-A (GB)
Title: Shell- and tube-type heat exchangers and their production
Inventor: FORBES MURRAY KEMBALL
IPC: F28F9/00
Filed: 1982-11-09
Abstract: A casing 26 for a shell- and tube- type heat exchanger is produced by deforming two axially spaced portions 36,37 of a tube to make their internal peripheries either larger than or smaller than the internal periphery of an intermediate portion 38 of casing 26 which is interposed between end portions 36,37. A tubestack 29 of tube elements 30 is received within casing 26, with tubeplates 31,32 disposed at least partially within end portions 36,37 respectively. When the bore of casing tube 26 is accurately sized and an end portion 37 has a larger internal periphery than said bore, transverse baffles 34 of the tubestack 29 can have external peripheries to engage the internal periphery of the casing portion 38. Otherwise, baffles 34 can have flexible tyres 48 mounted on their peripheries to engage the internal periphery of casing portion 38. Where the bore of casing tube 26 is subject to known dimensional tolerances such that it has a maximum and a minimum possible size, end portions 36,37 are deformed so that their internal peripheries are either larger than said maximum possible bore size or smaller than said minimum possible bore size. <IMAGE>
Patent GB-2120545-A (GB)
Title: A watertrap attachment for a sink etc. overflow
Inventor: MOLYNEUX GEORGE
IPC: E03C1/24
Filed: 1982-12-02
Abstract: The invention provides an attachment for fitting over the overflow opening 14 in a bath, washbasin or sink 10, for hygenic purposes, the attachment comprising an open- topped container 20 having an outlet communicating with the overflow opening, and a baffle 36 in the container which is so arranged, that a water trap is provided in the container. Hence, the water trap acts to seal the overflow passage from the interior of the room in which the bath, basin or sink is fitted. A reversible back sealer 44, which enables the attachment to be used with either a vertical wall or with a concave wall, is also provided.   <IMAGE>
Patent GB-2135202-A (GB)
Title: Foot massaging and exercising device
Inventor: BRAMHILL JOHN
IPC: A61H15/00
Filed: 1983-02-17
Abstract: The device comprises a plastics frame 1 moulded in one piece and comprising upstanding side walls 3 between which parallel spindles 10 extend, substantially spherical rollers 7 being independently rotatable on the spindles which are so arranged as to provide an arched bed of rollers over which the foot can be drawn back and forth. End portions of the spindles are retained in apertures in the side walls, being snap-fitted in assembly by sliding down range faces 12 and past shoulders of the walls. The ramp faces are provided at the backs of upright slots 13 in the side walls and the apertures open into vertical passages 14 terminating at further apertures 15 in the base. <IMAGE>
Patent GB-2136124-A (GB)
Title: Improvements in or Relating to Sonar Apparatus
Inventor: CHADWICK VICTOR JAMES
IPC: G01S15/02
Filed: 1983-03-01
Abstract: A sonar survey apparatus comprises a submersible vessel (1) having a structure adapted to receive a towing cable (4). A sonar signal transmitter (11) is mounted on the structure. At least one acoustic reflector (2, 3) is mounted on the structure and is shaped to produce, in a focussing plane, line foci of acoustic echo signals received from remote positions. A line array of receiver transducer elements (5a) is mounted on the structure in the focussing plane and extends in a line substantially at right angles to the line foci. Each receiver transducer element has an output for providing a signal representative of a focussed echo signal. A selector (15) is coupled with the output of each of the receiver transducer elements (5a) and has a control input and an output. The selector (15) is operable in response to the control signal to select the output of a receiver transducer element, relating to a predetermined direction, for display. A sensor (16) is mounted on the body for detecting movement of the vessel relative to a predetermined orientation and for providing a control signal for the selector. Selection of a different receiver transducer element (5a) is thereby effected so that the selector (15) continues to provide an output relating to the predetermined direction regardless of vessel yaw. <IMAGE>
Patent GB-2142297-A (GB)
Title: A rear view mirror for a motor vehicle
Inventor: DEWHURST FRANK
IPC: B60R1/08
Filed: 1983-06-16
Abstract: A rear view mirror for a motor vehicle, which rear view mirror comprises pivoting means (10) for causing the mirror (8) to pivot between normal and anti-glare positions in dependence upon the presence or absence of light of a predetermined intensity from a following vehicle, the pivoting means including ambient light compensation means (200). e.g. a pair of photosensors arranged in a bridge circuit, for compensating for the affect of ambient light on the pivoting means. <IMAGE>
Patent GB-2146231-A (GB)
Title: Improvements in or relating to electric liquid heating apparatus
Inventor: HALL PETER LAWRENCE
IPC: A47J27/21
Filed: 1983-07-22
Abstract: An electric kettle has a body (1) with an enlarged water vapour exit (45) leading via an aperture (44) to a chamber (34) containing a bimetal strip (35) that operates via a push rod (37) an over-centre snap action switching mechanism including a pivotally mounted dolly (13) which de-energises the heating element of the kettle when water therein boils. The rod (37) has an extension (40) that closes the aperture (44) when the water boils. The size area of aperture (44) is such that the formation of a water film across it, during use, is precluded. The cross-sectional area of the vapour exit (45) is not less than that of the aperture (44). <IMAGE>
Patent GB-2126761-A (GB)
Title: Inverse assembler
Inventor: PETTET MARK E
IPC: G06F9/06
Filed: 1983-08-15
Abstract: A logic analyzer performs an inverse assembly process comprising converting acquired address/data and control bus transaction into assembly language mnemonics, corresponding to mnemonics entered by a user in an assembly language program of a host computer. The inverse assembler possesses a data compression feature whereby characteristics associated with a microprocessor of a users circuit is stored in a Random Access Memory in the form of a set of decision tree tables, in accordance with firmware stored in a Read-Only- Memory of said inverse assembler. Using these tables, the amount of information required to be supplied to the inverse assembler to build the tables is substantially reduced relative to that required by a prior inverse assembler. In addition, the format of the decision tree tables corresponds to the format of user documentation supplied by the manufacturer of said microprocessor, so that the entry of the information required to build the tables is greatly simplified. The inverse assembler assigns to the bus transaction data representative of an assembly language instruction a tag bit, and to the bus transaction representative of the data information another tag bit, to distinguish between instructions and data information during the inverse assembly process.
Patent GB-2126901-A (GB)
Title: Hyperthermia applicator
Inventor: GIEBELER ROBERT HENRY
IPC: A61F7/00
Filed: 1983-08-26
Abstract: An ultrasound (or microwave, I.R., U.V. or optical) hyperthermia applicator comprises a plurality of transducers which can be operated in different grouping modes so that the applicator is effectively provided with a variable number of elements transmitting coherent beams, such element comprising one or more transducers. The coherent beams from these elements are focused for incoherent superposition in the target volume according to a spiral or multi- spiral focusing scheme. Such an applicator is capable of uniformly heating without scanning a limited part of human body.
Patent GB-2127379-A (GB)
Title: Excavator bucket with gripping facility
Inventor: MASON SAMUEL TREVOR
IPC: E02F3/40
Filed: 1983-09-22
Abstract: An excavator bucket having an earth-engaging portion (3) and a container portion (11) has in addition a gripping member (19) which can move from a rearward position to a forward position in which gripping can be effected between said member and the earth-engaging portion. <IMAGE>
Patent GB-2149176-A (GB)
Title: Addressing liquid crystal displays
Inventor: CROSSLAND WILLIAM ALDEN
IPC: G09G3/36
Filed: 1983-10-26
Abstract: In a ferro-electric liquid crystal display the individual pixels (21) are addressed via an address matrix comprising field effect transistors (11), one for each pixel (21), and row and column conductors (12, 13) whereby data is written into each pixel (21) to change or to maintain its display condition.
Patent GB-2137015-A (GB)
Title: Fluorescent lighting system
Inventor: HANLET JACQUES MARIE
IPC: H01J61/09
Filed: 1983-12-02
Abstract: An improved lighting system (10) which in the preferred embodiment includes a cathode (12) having an external surface (34) being coated with a cathode outside film (40) for emitting electrons therefrom. A first anode (14) extends internal to the cathode (12) for heating the cathode (12) to thereby emit electrons from the external surface (34). A second anode (16) is positionally located external to the enclosed cathode (12) for accelerating the electrons emitted from the cathode external surface (34). A bulb member (18) encompasses the cathode (12), the first anode (14), and the second anode (16) in a hermetic type seal. The bulb member (18) has a predetermined gas composition contained therein with the gas composition atoms being ionized by the cathode emitted electrons. The gas composition ionized atoms radiate in the ultraviolet bandwidth of the electromagnetic spectrum. The bulb member (18) is coated with a fluorescent material (20) for intercepting the ultraviolet energy responsive to the ionization of the gas composition atoms. The fluorescent material (20) radiates in the visible bandwidth of the electromagnetic spectrum to give a visible light output.
Patent GB-2135025-A (GB)
Title: Improvements in valves
Inventor: MONROCQ RAYMOND JEAN
IPC: F16K49/00
Filed: 1984-02-08
Abstract: A valve for cryogenic fluids has a moving valve member and control stem mounted in gas-tight manner inside an envelope integral with the valve body 10 by means of bellows 22 at the upper part of the valve allowing displacement of the moving part and control stem 16. The control stem and envelope are provided with an interior bearing member 28 acting as a heat screen. <IMAGE>
Patent GB-2154647-A (GB)
Title: Separable fastener
Inventor: ARFF HEINO
IPC: A44B11/26
Filed: 1984-02-25
Abstract: A separable fastener having a socket (10) including a receiver slot (27) having a lead-in opening (26) connected to the receiver slot (27) as well as a locking edge (29) adjacent the receiver slot (27), and a plug-in part (11) which includes a springily yielding locking-portion (22) which engages behind the locking edge (29) when the plug-in part (11) is pushed into the receiver slot (27), and an actuator-portion (21) connected to the locking- portion 22 for unlocking the locking-portion (22). The locking- portion (22) seen in the direction of insertion of the plug-in part (11) lies in front of the actuator-portion (21) and the actuator-portion (21) even in the case of uninterrupted actuation can move freely with respect to the socket (10). <IMAGE>
Patent GB-2142679-A (GB)
Title: Method and apparatus for borehole fluid influx detection
Inventor: GROSSO DONALD S
IPC: E21B47/10
Filed: 1984-06-22
Abstract: The infusion of fluid from the formation being drilled into a borehole (30) is detected by modulating the drilling fluid stream in the drill pipe and detecting pressure variations commensurate with the modulation at the surface in the annulus (28) between the drill pipe (12) and wall of the well. The detected pressure variations are compared in phase and/or amplitude with their own near term past history or with the drilling fluid pressure variations in the drill pipe (12) resulting from the modulation. Variations in phase or amplitude which can not be attributed to changes in the drilling operation will be indicative of fluid infusion. <IMAGE>
Patent GB-2148527-A (GB)
Title: Optical fibre switching
Inventor: DUNTHORNE DONALD
IPC: G02B26/04
Filed: 1984-07-06
Abstract: A switching arrangement for a light matrix used to display letters or numbers in which the light is provided by one lamp feeding optical fibres leading to each dot position. Each of these fibres needs to be switched on or off in order to illuminate any particular character and this is achieved by placing a rotatable switching disc (1) between the ends of a fibre (2, 3) which has been cut, the disc having a hole (5) in it at one position so as to permit the light to pass from one half of the fibre to the other when this is aligned with the fibre. The disc is magnetised and is rotatable by means of a core (6) made of a magnetic material of high hysteresis (see Fig. 2) so that when the core (6) is magnetised by a coil (7) in one direction the disc is rotated and the core remains magnetised to keep the disc in place even when the coil is turned off. <IMAGE>
Patent GB-2145469-A (GB)
Title: I.C. engine fuel injector assembly
Inventor: MOWBRAY DORIAN FARRAR
IPC: F02M61/14
Filed: 1984-08-02
Abstract: A body 10 which mounts a fuel injection nozzle defines a step 12 against which an annular member 13 can bear to provide a clamping force at sealing faces of the nozzle and the engine. The body defines a flange 17 in which are formed a plurality of slots 18 and the member 13 has ribs 19 complementary to the slots whereby the member can be passed over the flange and then moved angularly to cause the ribs 19 to engage the flange thereby to allow an extraction force applied to the member to be transmitted to the body. <IMAGE>
Patent GB-2164971-A (GB)
Title: A housing unit for a domestic animal
Inventor: BUXTON RONALD ARTHUR
IPC: A01K1/03
Filed: 1984-10-01
Abstract: The unit comprises a frame for supporting a fabric flexible cover, the frame defining a main compartment (11) defined in plan by four straight tubes (12,13,14,15) joined by connecting units (16,17,18,19) two of which also inter-connect tubes (20,21) defining in plan a second chamber (12). The main compartment is provided with a ground sheet (55) which extends under the main chamber (11) and is connected to upright side walls (51,52,53,54) and to other sidewalls (56,57) which extend along two sides of the second chamber. A flexible cover, formed as a unitary layer, is fitted over the frame and has a plurality of tabs by which the cover can be secured to the ground, such as by ground-engaging attachment pegs. <IMAGE>
Patent GB-2150969-A (GB)
Title: Restoring and strengthening of timber components
Inventor: DINARDO CARLO
IPC: E04G23/02
Filed: 1984-12-05
Abstract: Timber components (10) are restored and strengthened by cleaning the component preferably by sanblasting to expose deficiencies therein, the component (10) being consolidated by boring holes (14) therein which are filled with epoxy resin (15). Threaded steel rods (16) are entered into holes (14) and nuts (17) adjusted to tension rods (14) prior to or after resin (15) has set. Nuts (17) are recessed into component (10) and each recess is camouflaged by timber matching filler. Splits and shakes (18) in the component are filled with timber matching epoxy resin and rotted end sections of the component are excised and replaced with timber sections (45) secured by a flitch plate (43) with bolts (46) and epoxy resin. <IMAGE>
Patent GB-2153147-A (GB)
Title: Threshold switch
Inventor: CHOI WEE KIONG
IPC: G11C16/02
Filed: 1985-01-11
Abstract: The invention is a method of operating a semiconductor device having a layer of p-type amorphous or microcrystalline semiconductor in contact with an amorphous or microcrystalline semiconductor material of different conductivity type, and whose electrical properties have been modified by the application of a modifying voltage. The device exhibits threshold switching between lower and higher conductance states provided it is not switched to the maximum conductance or fully-on state. Switching between lower intermediate and higher intermediate states is envisaged. <IMAGE>
Patent GB-2154620-A (GB)
Title: Anchorage for elastic lingoes of a loom harness
Inventor: FELDING ANTHONY BIRCHENALL
IPC: D03C3/44
Filed: 1985-02-14
Abstract: An anchorage for elastic lingoes 11 of a loom harness comprises a plurality of rail members 12 each extending across the loom and arranged adjacent and parallel to one another in support means 15 so as to be separately removable and replaceable with their lingoes 11 still attached. The loom is easier to clean than conventional looms. <IMAGE>
Patent GB-2154545-A (GB)
Title: Magnetic tape cassette
Inventor: UCHIDA HIROYUKI
IPC: G11B15/675
Filed: 1985-02-21
Abstract: A magnetic tape cassette casing 10 has recesses 38, 40 in a front face 30, which also defines a tape-access opening 24, so disposed and aligned as to accommodate passage of actuator pins serving to retract a pivotable lid 28 over the tape-access opening. The lid is designed to cover the opening when the cassette is not in use to protect the tape from contaminants. The actuator pin or pins are part of a tape record/play-back system and displace the lid away from the tape-access opening when the cassette is inserted into the tape system. The recesses are located opposite the actuator pins, which may be anywhere along the front face of the cassette casing outside of the working range of a tape read or record head. Thus the recesses allow the diameter of the actuator pins to be much larger than the thickness of the pivotable lid. <IMAGE>
Patent GB-2173257-A (GB)
Title: A positive displacement screw machine
Inventor: ZIMMERN BERNARD
IPC: F04C28/12
Filed: 1985-04-03
Abstract: A slide 32 is slidable in a groove 27 along a bore accommodating the screw 23 to vary the delivery and/or compression ratio. One end of the groove communicates with the low pressure and the other end of the groove communicates with the high pressure. A separation wall 30 separates the two pressures behind the slide. The slide is leak-tightly urged against a free end 34 of the separation wall by holding means which slidingly retain the slide in the groove. <IMAGE>
Patent GB-2175405-A (GB)
Title: Generating a digital output representative of the time-integral of the product of first and second electrical quantities
Inventor: GOWTHORPE ALAN
IPC: G06J1/00
Filed: 1985-05-17
Abstract: Electrical quantities, e.g. voltage and current, are applied to input terminals (4,2), and a digital signal representative of the time-integral of their product is generated, at a counter (5). The absolute value of the input voltage is converted to a pulse train having a corresponding repetition rate by means of a voltage-to- frequency converter (3) and this train is applied to the clock input (CK) of the counter. The input current I is converted (1) to a pulse-width-modulated signal having its pulse-to-interval ration x:y given by x:y= 1 + f(I): 1 - f(I), e.g. (1 + AI):(1 - AI), where A is a constant, and the result is applied, in non-inverted or inverted form, to the up/down control input (U/D) of the counter. The inversion is achieved by means of an EXOR gate (15) in dependence on whether a polarity detector (17) detects that the input voltage is negative, thereby giving four-quadrant operation. <IMAGE>
Patent GB-2159977-A (GB)
Title: Hydrogen absorption in fibre optic cables
Inventor: DEWING JOHN
IPC: G02B6/44
Filed: 1985-05-17
Abstract: Hydrogen evolution in an optical fibre is suppressed by the incorporation of a hydrogen absorbent material in a water blocking compound with which the cable is filled. Typically the absorbent material is a silver substituted zeolite.
Patent GB-2181139-A (GB)
Title: Nitrated polybutadiene
Inventor: MILLAR ROSE WOOD
IPC: C07C203/04
Filed: 1985-08-14
Abstract: A nitrated derivative of polybutadiene has between 1% and 25% of the carbon atoms in the polymer substituted by nitrate (ONO2) groups. The materials are liquid rubbers with the initial polybutadiene having a molecular weight between 2000 and 10000. In an example, a hydroxy-terminated polybutadiene is epoxidised and then reacted with N2O5.
Patent GB-2180500-A (GB)
Title: Attachment means
Inventor: GREGSON FRANK GEOFFREY
IPC: B42F13/12
Filed: 1985-09-17
Abstract: An attachment means for the attachment of a sheet or sheets to the cover of a binder comprises a base plate (1) made up of two parts hinged to one another and provided with projections (3, 4) on each side of the hinge so that when the two hinged parts are in the same plane the two projections cooperate to form a first stud extending upwardly from the base plate. A second stud (7) extends upwardly from one of the two parts of the base plate, and an elongated element (9) on the other of the two parts of the base plate is cooperable at its free end with the second stud so that it can be retained in position relative thereto. A locking plate (11) provided with three holes fits over the elongated element and the first and second studs and is capable of locking with the first stud to secure the attachment means to the cover when this is between the locking plate and the base plate. Element (9) may be releasable in use, or may be, for practical purposes, immovable. <IMAGE>
Patent GB-2165512-A (GB)
Title: Offshore structure having motion damping apparatus
Inventor: SUH SUNG L
IPC: B63B21/50
Filed: 1985-10-11
Abstract: Structural motion of an offshore structure (4) e.g. a tension leg platform due to wind, wave, seismic and current forces, in particular structural excitation due to secondary wave forces, is damped by damping means (13) comprising a mechanical energy absorbing means (14) and a suspended submerged mass (18) fixedly connected to the mechanical energy absorbing means. The mechanical energy absorbing means may be a combination of linear or non-linear springs (15) and dampers (16) and is fixedly attached to the structure (4) so that the vibrating motion may be transferred to the motion damper. The size of the damper and mechanical energy absorbing means is determined by first measuring the natural frequency and mass of the structure, then using those numbers in an equation to calculate the mass and spring constant for the desired apparatus, the natural frequency of the damping system being set equal to that of the structure. In an other embodiment (Figure 3), the mass (25) is housed within a chamber containing fluid. <IMAGE>
Patent GB-2186790-A (GB)
Title: Folding table
Inventor: GRUMBRIDGE JOHN CHRISTOPHER
IPC: A47B3/02
Filed: 1986-02-21
Abstract: A folding table comprises a table top provided in two haves, (10a and 10b), each half having at least two spaced-apart support members (11a and 11b) located therebeneath to extend outwardly beyond the inner edge of each half. Each support member is located to be adjacent a respective member of the other half. Leg members (13a and 13b) are provided, one leg member being pivotally connected at its upper extremity to, or adjacent to, the extremity of each support member and the leg members connected to adjacent support members are pivotally connected at a point (X) spaced from the upper extremities thereof. <IMAGE>