baber/WOPTO huggingface dataset:
Patent GB-2279453-A (GB)
Title: A ventilator powered by solar radiation
Inventor: WOLFE PHILIP ROWLAND
IPC: F24F7/007
Filed: 1993-06-10
Abstract: A ventilator powered by electricity generated by solar radiation comprises at least one cover means (2) for cooperating with a ventilatable structure eg a building, said at least one cover means allowing flow of gas therethrough eg by louvres (9) out of and/or into at least a portion of the ventilatable interior(s) of said structure. The at least one cover means is adapted to receive solar radiation. The ventilator also comprises at least one solar generator (11), for generating electricity in response to said received solar radiation. At least one displacer means (24) displaces gas out of and/or into at least a portion of the ventilatable interior(s) of said structure (optionally via said at least one cover means). The operation of said at least one displacer means is aided and/or enabled by at least said generated electricity. The at least one displacer means optionally is adapted to cooperate with at least one distribution means (23) (25) for distributing gas from and/or to said at least one displacer means, for gas displacement by said at least one displacer means. Within the cover is preferably an orientable planar photovoltaic generator (11). The generator (11) may utilise amorphous silicon. Under generator (11) is a barrier felt seal (12). <IMAGE>
Patent GB-2280717-A (GB)
Title: Noise-damped disc-brake caliper assembly
Inventor: LAYFIELD JONATHAN MICHAEL HOWA
IPC: F16D65/00
Filed: 1993-08-03
Abstract: A metal shim 8 between a caliper 1 and the backing plate 7 of a brake 3 pad is partly covered by a layer of damping material 12 so that the caliper 1, the shim 8, and the backing plate 7 are in local metal-to-metal contact with one another when braking pressure is applied, thereby coupling the backing plate 7 to the caliper 1 and increasing the vibrating mass in order to damp vibrations generated by the brake pad. The shim may be adhered to the backing plate. In an alternative embodiment, the whole of the sh PI im is covered by the damping material, and projections (17, Fig. 7) on the backing plate penetrate the damping material to provide metal-to-metal contact between the backing plate and the shim. <IMAGE>
Patent GB-2268288-A (GB)
Title: Fuel pump control in an alcohol engine
Inventor: MOCHIZUKI KENJI
IPC: F02B1/02
Filed: 1993-08-03
Abstract: In a mixed fuel ic engine, the output of a plurality of pumps 114a, 114b supplying fuel to the engine is controlled in dependence upon the measured alcohol concentration of the fuel. Control of the supercharging pressure in dependence on the measured alcohol concentration is also disclosed. <IMAGE>
Patent GB-2274912-A (GB)
Title: A lamp reflector
Inventor: NINO NAOHI
IPC: F21V14/00
Filed: 1993-10-11
Abstract: All illumination lamp for producing a triangular, square or stellate light distribution pattern, comprising: a reflecting surface having an optical axis and a fundamental surface which, when an xyz orthogonal coordinate system is set so that the x-axis coincides with the optical axis, has a reference point on the x-axis and a reference parabola included in a plane inclined, in a generalized form, from the xy-plane and having a vertex on the origin of the coordinate system and a focus on the x-axis in the rear of the reference point, and which is a collection of intersecting lines each obtained by cutting an imaginary paraboloid of revolution having an axis extending in a ray vector direction taken by a reflected ray after being emitted from the reference point and then reflected at a reflecting point on a parabola that is an orthogonal projection of the reference parabola onto the xy-plane, and Passing through the reflecting point, by a plane in parallel with the Z-axis and including the ray vector, said reflecting surface being formed by periodically arranging identical reflecting sectors of a number of apices of the triangular, square or stellate pattern around the optical axis, each of the reflecting sectors having a shape of a generally fan-shaped portion of the fundamental surface having a central angle determined in accordance with the number of apices of the triangular, square or stellate pattern and located in the vicinity of the xy-plane or xz-plane; and a light source having a central axis extending along the optical axis.
Patent GB-2289237-A (GB)
Title: Hydraulic container and blister pack heat sealing machine.
Inventor: COLES IAN BARRY
IPC: B29C65/18
Filed: 1994-03-02
Abstract: A heat sealing machine for sealing a container or blister pack with film comprises a table 2 for receiving the container, a film unit (figure 1), a sealing unit with a heating element (figure 11) corresponding in shape with the area of the container to be sealed and a hydraulic ram to raise the table upwards to the film unit to effect a seal. The hydraulic ram may also serve to eject the container after sealing by means of the eject bar 3. <IMAGE>
Patent GB-2287218-A (GB)
Title: A band saw
Inventor: ROSSETTI MIRCO
IPC: B23D55/08
Filed: 1994-03-02
Abstract: A band saw including a upper blade guide 1, the upper blade guide 1 comprising a post 3 slidably received in a channel 5 of the bad saw and carrying a guide 19 for supporting a blade 21 and a locking device 9 for locking the post 3 and hence the guide 19 in a desired position relative to the channel 5, wherein the post 3 is carried by the locking device 9 such that positioning of the locking device 9 positions the guide 19 prior to locking of the locking device 9. Further, the locking device may project through the post and, when released, be free to slide along slits in the channel the locking device when locked squeezing opposed sides of the channel onto the post to retain the post in position. As a result, a more secure and improved positioning of the post, and hence the guide, can be readily achieved. <IMAGE>
Patent GB-2295181-A (GB)
Title: Aluminium window frame with clips
Inventor: NICOLAOU ANDREAS
IPC: E06B3/30
Filed: 1994-07-04
Abstract: An aluminium window with a frame has the frame attached to the aluminium by means of clips as shown in fig. 1. The clip "embraces" the aluminium window frame. <IMAGE>
Patent GB-2280668-A (GB)
Title: Gripper device for a rotary printing machine
Inventor: MAUL BERNHARD
IPC: B41F21/10
Filed: 1994-08-04
Abstract: A rotary printing machine cylinder 2 has a plurality of grippers 3 with fingers 5 co-operating with a pad 6 on the surface of the cylinder wherein the grippers are mounted on a bolt 4 located in a groove in the surface of the cylinder and extending parallel to the axis of the cylinder, each gripper featuring a toothed segment 7 driven by a mating toothed segment 8 on a drive shaft 10 oscillated by a cam drive (not shown). The gripping surface of the fingers is preferably part spherical. <IMAGE>
Patent GB-2282618-A (GB)
Title: Well logging apparatus comprising a measuring pad and a combinaton device including such apparatus.
Inventor: DELPUECH ALAIN GEORGES MARIE
IPC: E21B47/01
Filed: 1994-09-29
Abstract: The invention concerns a well logging apparatus adapted to be moved inside a borehole, the apparatus comprising an elongate body 20, a measuring pad 21 adapted to contact the wall of the borehole, a support device for the pad mounted pivotally on one side of the body, and means for applying the pad against the wall of the borehole. The apparatus according to the invention is characterized in that the support device comprises an arm 41 which carries the weight of the pad and is connected to the pad 21 substantially in the central part thereof at 43. The arm 41 has a cranked end 44 which is pivoted to the body 20 at 45. A counter arm 22 is pivoted to the arm 41 at 53 and has a cranked end 47 which is connected to a spring loaded rod 49. This arrangement is said to optimise contact of the pad 21 with the wail of the borehole especially in uneven boreholes. <IMAGE>
Patent GB-2294859-A (GB)
Title: Utilising high lactose liquids in animal feedingstuffs
Inventor: RETTER W C
IPC: A23K10/28
Filed: 1994-11-10
Abstract: High Lactose liquids in particular whey permiate are difficult to store and handle in bulk. This is due to crystallisation, sedimentation and separation. The invention relates to a process by which those liquids can be applied evenly to an animal feedstuff. The equipment designed has the ability to hold the liquid in solution by continuous circulation. The products, of intermediate moisture, can be stored and handled in a solid state, either in bulk or bags.
Patent GB-2285295-A (GB)
Title: A pipe coupling having an expanded graphite sealing ring
Inventor: LATTY CYRIL XAVIER
IPC: F16L19/075
Filed: 1994-12-22
Abstract: A pipe coupling for use on railway vehicles has a central section 3 having a through hole 4 to receive the two pipes 1 to be connected. A socket 5 is defined on the outer periphery of section 3, and external threads 6, 7 are provided on either side of the socket 5. Nuts 8, 9 have 10 internal surfaces 10, 11, provided with threads 20, 21 respectively for connection with the central section. A collar 14, washer 15 and sealing ring 16 are securable between opposing surfaces 10, 12 and 11, 13 of the nuts and the central section 5. The sealing ring 16 is made from expanded graphite and may be reinforced by a metal angle rail 19. <IMAGE>
Patent GB-2287396-A (GB)
Title: An absorbent article and a method for its manufacture
Inventor: ROENNBERG PETER
IPC: A61F5/44
Filed: 1993-11-11
Abstract: An absorbent article such as a diaper, an incontinence guard, a sanitary napkin or like article manufactured from a generally rectangular blank is characterized in that leakage barriers are constructed from those folds which are formed in the material as the blank is folded to a desired shape. <IMAGE>
Patent GB-2304163-A (GB)
Title: A pipe joint with a locking device
Inventor: DICKINSON ALAN JOHN
IPC: F16L47/03
Filed: 1995-08-05
Abstract: A pipe joint 1 comprises a hollow body member 2 having a passageway 3 therethrough for receiving a pipe 50, a segmented gripper means 7 positioned in a first circumferential tapered channel 5 in the hollow body member 2 and moveable axially within the passageway 3, the arrangement being such that, in use, when forces are applied tending to separate the pipe 50 from the hollow body member 2 the segmented gripper means 7 can move axially along the tapered channel 5 into gripping engagement with the pipe 50. A sealing means 8 is received in groove 6. Member 2 is of plastics and moulded, extruded etc. Suitable plastics include those made from olefin polymers listed in the text. Means 7 comprises three separate segments the radially inner surfaces of which may be roughened or have teeth.
Patent GB-2296695-A (GB)
Title: Lockable trailer coupling
Inventor: FINNERTY GERRARD MARTIN
IPC: B60D1/06
Filed: 1995-11-16
Abstract: A trailer coupling 10 comprises jaws 14 and 16 on a towing vehicle between which an eye from a trailer vehicle can be inserted. The eye is held in place by a pin 22 which is removably receivable through bores 18 and 20 in the jaws, and which is retained in place by a lock 28 preferably outside the laws preventing unlawful removal of the trailer from the coupling. Boss 26, which contains the lock may be attached to the towing vehicle or to the trailer. <IMAGE>
Patent GB-2293187-A (GB)
Title: Well orientation tool
Inventor: PRINGLE RONALD EARL
IPC: E21B17/00
Filed: 1993-09-06
Abstract: A well orientation tool 12 for rotational orientating a well tool in a well bore comprises a mandrel 18 rotatable in an orientation body 16 for providing rotational orientation and actuated by a hydraulic piston 20 controlling the position of a helix 24 with respect to a pin 26. <IMAGE>
Patent GB-2297149-A (GB)
Title: Lighting apparatus
Inventor: WRIGHT BARRY THOMAS
IPC: F21V5/04
Filed: 1996-01-17
Abstract: A lighting apparatus that produces a single unified beam comprises multiple light sources 2, e.g. light emitting diodes, and a generally convex composite lens 20 comprising an array of lens elements 4, each with a focal point 10. Each lens element 4 has a plurality of stepped concentric rings provided on the inside surface thereof and an array of a plurality of generally convex rectangular facets 8 formed on the outside surface thereof. Each of the lens elements 4 has associated with it a single LED 2 at its respective focal point 10. The lighting apparatus is suitable for use as warning lamps, especially for vehicles.
Patent GB-2317280-A (GB)
Title: Bandwidth adjustment in phase locked loops
Inventor: SMITH CHRISTOPHER NIGEL
IPC: H04B1/713
Filed: 1996-09-11
Abstract: A phase locked loop is provided with a digitally implemented loop filter 14 comprising an analogue to digital converter 22 for converting a phase error signal to a discrete time phase error signal, a digital filter e.g. a signal processor 22, for filtering the phase error signal and a digital to analogue converter 24 for converting the filtered phase error signal into a continuous time phase error signal. By providing the phase locked loop with a digital loop filter, a loop bandwidth of the phase locked loop may be adjusted by arranging for the impulse response coefficients of the digital filter to be changed, thereby effecting a change in the loop bandwidth with substantially reduced noise. The signal processor 22 may be controlled by a control circuit 26 and an associated data store 28. The phase lock loop may form part of a frequency hopping radio transmitter or receiver.
Patent GB-2305561-A (GB)
Title: Control of electromagnetic valves
Inventor: DRESSLER KLAUS
IPC: H01F7/18
Filed: 1996-09-13
Abstract: Reduction of the time interval between drive control and actual opening or closing of at least two electromagnetic valves 101, 102, for the control of the quantity of fuel to be injected into an internal combustion engine, is achieved by a capacitor C1 providing a rapid current build-up in the valve coils 101, 102. The capacitor may be in parallel with the voltage source 110 or in parallel with switch S1 (fig.2). Initially, electrical energy supplied from the voltage source is stored into the valve coils. The current level in this first phase is not sufficient to cause the valves to open. Then in a second phase, the energy stored is transferred to capacitor C1. The third phase begins with drive control to the valves to effect fuel admetering when energy from the capacitor C1 is discharged through the valve coils causing a rapid build-up of current resulting in a short response time of the valve. When the capacitor C1 is connected in parallel with switch S1, energy stored in the valve coil at the end of drive control is used to recharge the capacitor C1 thus reducing energy consumption.
Patent GB-2305564-A (GB)
Title: Bipolar operational transconductance amplifier
Inventor: KIMURA KATSUJI
IPC: H03F1/32
Filed: 1996-09-19
Abstract: A bipolar OTA having a wide input voltage range is provided without increasing the circuit scale and current consumption. This OTA includes a first differential pair of emitter-coupled first and second bipolar transistors, a second differential pair of emitter-coupled third and fourth bipolar transistors, a common current source or sink connected to the coupled emitters of the first to fourth transistors. The first to fourth transistors are driven by a common tail current produced by the common current source or sink. A first input voltage as an input signal to be amplified is differentially applied across the bases of the first and second transistors. A second input voltage, which is produced by attenuating the first input voltage, is differentially applied across the bases of the third and fourth transistors. First and second dc offset voltages are applied to the bases of the third and fourth transistors, respectively. An output current as an amplified output signal is differentially derived from collectors of the first and second transistors. A fifth bipolar transistor driven by the common current source or sink may be additionally used for applying a third input voltage.
Patent GB-2306220-A (GB)
Title: Borehole logging using Stoneley waves
Inventor: KIMBALL CHRISTOPHER V
IPC: G01V1/50
Filed: 1996-09-30
Abstract: A method of analyzing Stoneley waveforms obtained in a well logging operation, includes analyzing the waveforms by means of multiparameter inversion using one or more externally provided parameters to obtain borehole fluid slowness and borehole fluid attenuation, and analyzing the Stoneley waveforms by multiparameter inversion using the borehole fluid slowness and borehole fluid attenuation and the externally provided parameters so as to determine a parameter, such as mobility, related to permeability of the formation being logged. Complex conjugate back propagation using a maximum likelihood/least mean squares error estimator or by applying Prony's method and fitting model-derived dispersion curves can be used to obtain mobility.
Patent GB-2306015-A (GB)
Title: Photoplotters
Inventor: STRAAYER RONALD J
IPC: B41J11/00
Filed: 1996-10-01
Abstract: A photoplotting apparatus comprises an internal drum plotter 12 and a media sheet handling apparatus (14) (see Figure 1, not shown) for sequentially delivering a photosensitive media sheet to the photoplotter for exposure from a stack of such sheets. The photoplotter has reduced turbulence within the drum 22 during exposure of the media sheet, and the sheet handling apparatus includes means for separating the sheets in the stack from interleaves disposed between adjacent sheets (26) in the stack. The turbulence is reduced by an air flow provided from apertures in a tube 54 extending along the length of the drum and fed from a compressed air supply 64.
Patent GB-2318639-A (GB)
Title: Depth determination
Inventor: FLING RICHARD WILLIAM
IPC: E21B47/04
Filed: 1996-10-25
Abstract: In order to determine the depth of an inaccessible object 4, such as an underground boring tool, the depth of the object 4 is determined relative to a known horizontal reference plane p. Similarly the height of the ground surface, relative to the reference plane p is determined. The horizontal distance travelled by the boring tool 4 from start point 22 and its depth d1 from the start point and hence reference plane P is determined using a known location system. Then knowing the distance travelled by tool 4 the estimated ground level d2 above the reference plane P can be calculated using trigonometry. The estimated depth of the boring tool is the sum d1 + d2.
Patent GB-2324833-A (GB)
Title: Gas turbine engine support structure
Inventor: RIDYARD PHILIP
IPC: F01D25/16
Filed: 1997-02-22
Abstract: A bearing support structure (22) for a gas turbine engine (10) comprises an annular array of stator vanes (29) and a radially inner bearing support portion (26) which are interconnected by an annular array of radially extending U-shaped cross-section parts (33). The U-shaped cross-section parts (33) are interconnected at their radially outer extents and are arranged so that adjacent parts (33) are open in generally opposite axial directions. Such a bearing support structure (22) can carry service pipes with good accessibility and be produced by casting, thereby reducing its cost.
Patent GB-2311189-A (GB)
Title: Telephone answering device
Inventor: KNUTH STEPHEN B
IPC: H04M1/65
Filed: 1997-03-14
Abstract: A digital telephone answering device (DTAD) that allows messages to be forwarded to certain internal mailboxes. Random access memory (RAM) is flexibly and dynamically controlled by a microprocessor or controller. Audio signals in the form of voice messages are digitized and stored in the RAM. Messages can be sorted and allocated to specific mailboxes and made retrievable by pressing a button assigned to that mailbox. Messages can also be moved or re-assigned from a common message area to a certain mailbox or mailboxes. Outgoing messages are also stored in RAM and can be of sufficient number to have an outgoing message correspond to each incoming message storage area. The normal message recording and message playback functions of the DTAD may be activated after the call has been answered on the receiving side. Memos can be appended to messages that have been moved or re-assigned from a common message area to a certain mailbox or mailboxes.
Patent GB-2318929-A (GB)
Title: Vehicle generator control device
Inventor: KOUWA TATSUKI
IPC: H02J7/24
Filed: 1997-03-21
Abstract: A device formed as a hybrid integrated circuit controls the output voltage of a vehicle generator by on/off switching of the field current by means of a transistor 305, and the device incorporates field current limiting in response to sensing of field current by a current sensing resistor 308. The transistor 305, resistor 308 and a field winding protection diode 307 are formed as discrete elements of the hybrid circuit, a control circuit 301-317 which controls the transistor 305 in response to the output voltage of the generator and in response to the field current being formed as an integrated circuit. The current sensing resistor 308 and the control circuit are connected to respective ground patterns, and these ground patterns are connected together upstream of a ground terminal c of the hybrid circuit, rather than being individually connected to the ground terminal c as in the prior art (Fig.3), thereby avoiding the ground potential for field current detection being unstable, as was possible in the prior arrangement due to soldering contact resistance in combination with the prior separate connections of the two ground patterns to the ground terminal c .
Patent GB-2324307-A (GB)
Title: Fracture cell apparatus
Inventor: ECCLES CHRISTOPHER ROBERT
IPC: C01B3/04
Filed: 1997-04-17
Abstract: Fracture cell apparatus including a capacitive fracture cell (20) comprising a container (21) having walls (21a, 21b) made of non-electrically conducting material for containing a livid dielectric (26), and spaced apart electrode means (22, 23) positioned outside the container (21) with the liquid dielectric (26) between the electrode means, and means (8a,8b Figs 1, 2) for applying positive and negative voltage pulses to each of the electrode means (22, 23). In use, whenever one of a positive voltage pulse and a negative voltage pulse is applied to one of the two electrode means, the other of a positive voltage pulse and a negative voltage pulse is applied to the other of the two electrode means, thereby creating an alternating electric field across the liquid dielectric to cause fracture of the liquid dielectric (26). The apparatus may be used for generating hydrogen.
Patent GB-2312195-A (GB)
Title: Vehicle security device
Inventor: SOLOMON JOHN RODERICK
IPC: B60R25/022
Filed: 1997-04-21
Abstract: A vehicle security device comprises a shell member (12,14) which can be applied to a steering wheel of a vehicle. A locking bar (36) fast with the shell comprises a tubular housing (44) within which is a tubular member (46) linearly slidable with respect to the shell. In an unlocked condition the slidable tubular member (46) is substantially contained within the periphery of the shell member. In a locked condition, the slidable tubular member (46) projects beyond the periphery of the shell by a distance sufficient to inhibit rotation of the steering wheel by it movement becoming blocked by surrounding parts of the vehicle. A key-operated lock (52) is provided by means of which the slidable tubular member (46) can be secured in the locked condition.