baber/WOPTO huggingface dataset:
Patent GB-2238011-A (GB)
Title: Moulding composite articles
Inventor: PRYER DEREK JOHN
IPC: B29C45/14
Filed: 1989-11-18
Abstract: A composite arrangement of thermoplastics components (1, 2), particularly a windscreen for a microphone, is produced by accommodating in a first cavity in an injection moulding tool a first component (1) of a porous sintered thermoplastics material, such as polyethylene, of thin-walled inverted cup-shaped form, serving as an acoustic filter. To form a second thermoplastics component (2) as a support for the first component (1) and with a tapered mounting face (4), molten material of a second thermoplastics material, of the same basic polymer material as the first component (1) but of a more solid form when solidified, is injected into a second cavity of the tool which has a shape corresponding to a desired ring shape for the component (2) and interfaces with a rim edge (3) of the first component (1). The molten material fills the second cavity and contacts and bonds with the rim edge (3) of the first component (1). On cooling the molten material solidifies to form the second component (2) bonded to the first component (1). <IMAGE>
Patent GB-2240887-A (GB)
Title: A circuit for starting and operating fluorescent lamps
Inventor: SWANSON DAIL
IPC: H05B41/18
Filed: 1990-02-07
Abstract: The circuit operates from a low frequency A.C. source and comprises an inductive ballast connected in series with the power source and the lamps and having a non-linear characteristic for producing a plurality of harmonics of the source frequency, a cathode heating transformer comprising a primary winding 102 and secondary windings for connection to the cathodes of the lamps, a capacitor connected in series with the primary winding, means connecting one or both of the series-connected capacitor and primary winding across the lamps, the combined reactance of the capacitor and the primary winding being at least partially in resonance, in co-operation with the inductive ballast, over a frequency range simultaneously emcompassing a plurality of harmonics of the power source frequency, and a plurality of series-connected voltage-actuated switches 104, 106, 108 interposed in series with the series-connected capacitor and primary winding, the switches being closed during starting of the lamps to cause the resonance and to cause heating of the cathodes and the switches being open after starting of and during operation of the lamps. A PTC thermistor 100 prevents damage to the winding 102 in the event that one or both of the lamps should rectify. <IMAGE>
Patent GB-2234828-A (GB)
Title: Optical polarisation state controllers
Inventor: LARGE TIMOTHY ANDREW
IPC: G02F1/01
Filed: 1990-02-12
Abstract: A polarisation controller is formed by a pair of optical fibre polarisation beam splitters (10, 11) are connected in tandem using two linking pieces (12,13) of single mode optical fibre, one of the fibres being wrapped around a piezoelectric transducer (14). Two such controllers (30a, 30b) may be connected in tandem with the principal axes of one at 45 DEG  to those of the other so as to form a device which for a given input state of polarisation (SOP) can provide any output SOP. Such a tandem arrangement is employed as a component of an SOP-matching local oscillator signal generator for coherent detection of light. In an alternative form of controller the second optical fibre polarisation beam splitter (11) is dispensed with, and instead, the linking piece 13 is connected as an optical feedback path linking one of the outputs of the beam splitter to one of its inputs. <IMAGE>
Patent GB-2243302-A (GB)
Title: Golf scoring device
Inventor: WU DUNCAN Y
IPC: A63B71/06
Filed: 1990-04-24
Abstract: A device for scoring a golf game for at least one player on a golf course is connectable with a host computer through an interface and includes input means and control means which is so programmed as to allow the host computer to load the par and the distance of each hole of the golf course, the name of the golf course and the name of each player to the memory means when the scoring device is linked with the host computer via the interface before playing the golf game, and to allow the host computer to read the name of each player and the score of each player for each hole of the golf game from the memory means when the scoring device is linked with the host computer after the golf game. Contacts 11 link the device with a computer and during play scores can be entered via a keyboard 31-46. <IMAGE>
Patent GB-2235064-A (GB)
Title: A flow conditioner
Inventor: LAWS ELIZABETH M
IPC: F15D1/00
Filed: 1990-07-20
Abstract: A flow conditioner comprising an apertured circular plate intended to be placed in a conduit in an orientation substantially perpendicular to the axis of the conduit. The apertures 3, 4 are circular and are arranged in a plurality of radially spaced circular arrays around a central aperture. The centre of the central aperture 2 and the centres of the circular arrays coincide with the centre of the circular plate. The apertures in each circular array are equally spaced apart around the centre of the plate, and all the apertures in any one circular array are of substantially the same diameter. The size and number of apertures are such that the impedance to flow presented by the plate increases with the radius on which a given array of apertures is arranged. <IMAGE>
Patent GB-2234074-A (GB)
Title: Gas sensor
Inventor: MOSELEY PATRICK TIMOTHY
IPC: G01N27/12
Filed: 1990-07-23
Abstract: A gas sensor, suitable for use in the sensing of carbon monoxide, C2H4, hydrogen or ammonia, includes a heater (1) made of a positive temperature coefficient of resistance material which is in thermal communication with a gas sensitive material (2). The positive temperature coefficient of resistance material (1) is used as a self-regulating heater and may be a donor-doped polycrystalline barium titanate. The gas sensitive material may be Na0.1, Nb0.1, W0.9O3 which is either deposited directly on the heater or on one side of a substrate on the other side of which is deposited the heater. The semiconductor gas sensitive material may be coated with a noble metal e.g. palladium. <IMAGE>
Patent GB-2240053-A (GB)
Title: Chromatographic apparatus and method
Inventor: MASUDA TAKAYUKI
IPC: C13B20/12
Filed: 1990-12-19
Abstract: Zones 1-8 are filled with one adsorbent and linked via pump 10 and line 11 in a circuit. Feed of material to be separated is by line 'f' to a point between zones 4 and 5 and just downstream of shut-off valve 9. Eluant is supplied via common line D and valves 1-8d enable it to be added to the circuit between any pair of adjacent zones. Take off valves 1-8a feed common conduit A for the component of the three supplied in the feed having the least affinity for the adsorbent; valves 1-8c lead to conduit C for the most readily adsorbed. The conduit B is for the intermediate component and is fed only via valves 2-4b. The method involves passing the feed around the system and then (1) closing valve 9 and eluting the medium affinity component into conduit B by adding eluant downstream of valve 9 and (2) - alternating with (1) - opening valve 9, allowing circulation and withdrawing the other components via selected valves 1-8a and 1-8c by supplying eluant to the appropriate points 1-8d. Examples illustrate separation of oligosaccharides with a cation exchange resin as the stationary phase. <IMAGE>
Patent GB-2239854-A (GB)
Title: Film-packaged article
Inventor: TANAKA KATSUHIRO
IPC: B65D75/00
Filed: 1990-12-20
Abstract: A package is disclosed which includes an enclosed article, and a thermally shrinkable, synthetic resin film enclosing the article and having opposite, first and second edge portions P and Q, the first edge portion being superimposed on and sealed to the second edge portion to form a sealed, overlap portion 4, the film having perforations 2 arranged in a row in at least one of the first and second edge portions and a coating 3 of a seal-preventive agent provided in part of the overlap portion for weakening the seal in the overlap portion. Sealing is preferably effected by electrostatic sealing and various blocking antistatic agents for forming the coating are disclosed. The coating may be continuous or discontinuous (Fig. 2) or in the form of spaced lines. <IMAGE>
Patent GB-2244609-A (GB)
Title: Rectifier cabinet static breaker with SCRAM function
Inventor: COSTANTINO JR ROGER ANTHONY
IPC: G21C9/02
Filed: 1991-04-26
Abstract: A rod control rectifier cabinet static breaker uses an SCR 23 in place of conventional blocking diodes, thus providing an alternative SCRAM method 36. A power transistor 11 in parallel with the latch contactor commutates the SCR. The static breaker provides high-speed protection against current overload 34, and has an on-line test feature with visible verification 30. <IMAGE>
Patent GB-2245828-A (GB)
Title: Rib linkage joint
Inventor: HUANG SHENG-FU
IPC: A45B25/02
Filed: 1991-05-17
Abstract: An improved rib linkage joint for an umbrella where the rib linkage includes an inner rib and an inner linking spoke, both hingedly connected to a middle joint, that middle joint being fixed to one end of a middle rib. The inner rib, the inner linking spoke and the middle joint is each in the form of a strut having a U-shaped cross-section with the slots thereof facing upward. A flexible middle linking spoke has one end hooked on a pin fixed between the strut side walls of the inner linking spoke adjacent the middle joint. This structure allows easier assembly of the rib linkage joint initially, as well as enhances compactness of the rib linkage when the umbrella is collapsed.
Patent GB-2243932-A (GB)
Title: Display, e.g. radio paging device
Inventor: KAY KATHERINE SUZANNA
IPC: G08B5/22
Filed: 1991-07-08
Abstract: A radio pager can display alphanumeric and/or pictographic characters such as of an Oriental language including Chinese, Korean and Thai and/or graphic information and includes means for storing, between the receipt of radio messages, the value of at least one parameter used by circuitry of the device for defining a characteristic of its operation and means responsive to at least one command encoded in a received message to set at least one such parameter to a required value. Among the parameters which may be set in this way is the identification code of the device. Processing circuitry for receiving the radio message as N-bit message data words converts into displayed characters and/or graphic images in a manner such as to extend the total number of displayable characters and/or graphic images beyond 2N (2 raised to the power N) by using at least one of the 2N possible data words to alter the conversion used. <IMAGE>
Patent GB-2247320-A (GB)
Title: Safety switch assembly
Inventor: JACKSON GEORGE HENRY
IPC: H03K17/97
Filed: 1991-10-10
Abstract: PCT No. PCT/GB90/00576 Sec. 371 Date Dec. 5, 1991 Sec. 102(e) Date Dec. 5, 1991 PCT Filed Apr. 17, 1990 PCT Pub. No. WO90/13180 PCT Pub. Date Nov. 1, 1990.A safety switch having first and second elements intended to be mounted on components of a safety enclosure that are moveable relative to one another. The first and second elements are in a predetermined relative position adjacent each other when the enclosure is in a closed condition and spaced apart when the enclosure is in an open condition. A source of magnetic flux is mounted on one element and a magnetically operable switch is mounted on the other element. The magnetically operable switch is arranged so as to be switched by the magnetic flux generated by the source when the elements are moved adjacent to each other. A pair of tuned circuits are mounted one in each of the elements, and a switching circuit is connected to one of the tuned circuits. The switching circuit is arranged so as to be switched when the elements are moved adjacent to each other. An output circuit indicates that the enclosure is not closed unless both the magnetically operable switch and the switching circuit indicate that the two elements are adjacent to each other.
Patent GB-2260950-A (GB)
Title: Lifejacket
Inventor: DAVEY-EVANS SIMON
IPC: B63C9/125
Filed: 1991-11-01
Abstract: A lifejacket 10 comprising two lobes 18, 20 interconnected by a neck portion 22 has attached to the lobe 18 along the lines 34 and 35 a generally triangular panel 36 of flexible material. The panel 36 and mirror-image panel 38 are each attached so as to form a full pocket, and together constitute a double flap valve which is closed by pressure of water trying to enter the lower end of the tunnel between the lobes 18, 20, and which is opened by the pressure of any water in the upper end of the tunnel to allow it to escape. <IMAGE>
Patent GB-2257593-A (GB)
Title: Pip channel searching method
Inventor: NA UN-HEUI
IPC: H04N5/44
Filed: 1992-03-11
Abstract: A video cassette recorder having a PIP function has an automatic PIP channel search method which during television viewing comprises the steps of setting the currently-viewed broadcast as a main screen, if a scan key is input when watching a TV channel, setting broadcasting channels excluding the channel set as the main screen as subscreens and displaying in turn the subscreen channels, and if the scan key signal is re-input, displaying only a specific channel broadcast on the main screen. During viewing a video tape the search method comprises the steps of setting a reproduced signal of a currently-viewed video tape as a main screen if a scan key is input when reproducing a video tape of said VTR, setting a plurality of stored broadcasting channels as subscreens and displaying in turn the subscreen channels, and if the scan key is re-input. displaying only the video tape signal on the main screen. The method can easily find which program is broadcast on a different channel by displaying a broadcasting channel besides the currently-viewed channel on the monitor in the PIP screen, using the scan key. <IMAGE>
Patent GB-2253428-A (GB)
Title: Down-hole bearing assemblies
Inventor: LEANEY PETER
IPC: E21B47/024
Filed: 1992-04-28
Abstract: A retrievable down-hole bearing assembly 120 is provided in order to maintain a survey instrument assembly at a fixed angular orientation with respect to a core barrel supported by the bottom hole assembly of a rotating drill string and rotationally isolated therefrom. The bearing assembly 120 comprises a support 110 having the same angular orientation as the instrument and having a cylindrical outer surface, and a centraliser sleeve 166, 167 carried by the support 110 and having an inner bearing surface providing for rotation of the sleeve 166, 167 with respect to the outer surface of the support 110. Resilient vane members in the form of leaf springs 190 are provided on the sleeve 166, 167 to engage the inner surface of the surrounding drill string. The leaf springs 190 are capable of flexing radially inwardly (and the sleeve may be formed in two parts to permit such flexing) to disengage them from the inner surface of the drill string when the assembly is drawn along the drill string. <IMAGE>
Patent GB-2267397-A (GB)
Title: Harness ground return arrangement.
Inventor: POULTON NEVILLE JOHN
IPC: H01R13/648
Filed: 1992-05-30
Abstract: A backshell (41) mounted on a "D"-type connector (30) allows return harness wiring in an aircraft or similar environment to be eliminated by providing for short wire connections (49) to be made between connector pins to which incoming return wiring is connected and castellations or tines (43) forming pan of the backshell. The tines are electrically connected to a return mass (e.g. an aircraft fuselage) when the connector is fixed thereto, the result being that when such a connector arrangement is used at the two remote ends of a harness, the circuit between the return wiring located at the two ends is completed. <IMAGE>
Patent GB-2259914-A (GB)
Title: Preparation of isoflurane
Inventor: ROZOV LEONID A
IPC: C07C43/12
Filed: 1992-06-29
Abstract: Isoflurane is formed by the exhaustive chlorination of 2,2,2-trifluoroethyl difluoromethyl ether with chlorine gas. The reaction mixture, preferably without purification or refining, is treated with UV light in the presence of isopropanol to reduce 1,1-dichloro-2,2,2-trifluoroethyl difluoromethyl ether, the other major component thereof, to isoflurane. The inhalation anaesthetic isoflurane is thereby obtained in yields of at least 80%.
Patent GB-2279435-A (GB)
Title: Trackerball.
Inventor: GILBERT DAVID PETER
IPC: G06F3/0354
Filed: 1993-06-21
Abstract: The trackerball has a plurality of supports arranged to locate the ball (1) in an operable position, at least one of the supports (6) being urged towards the other supports against a stop by the action of a spring (23) so that if pressure is applied to the ball above a threshold value the support 6 can move away from the other supports. The support (6) is mounted on a spring loaded pivotable arm (21) with an engagement part biased into contact with the surface of the ball and part of the pivotal arm is arranged to actuate an electrical switch 26. <IMAGE>
Patent GB-2268449-A (GB)
Title: Rescue device
Inventor: VIRTANEN TIMO
IPC: B63C9/26
Filed: 1993-07-02
Abstract: A rescue device for lifting a person or equivalent out of the water with the aid of a rope (1), said device being provided with a closed loop (2) on the end of the rope, the rope being passed through a rigid tube (3) constituting a handle, to be movable in said tube. On the rope in part of the loop region is a resilient sleeve (4). In use the loop can be slipped around the person to be 1 lifted, the presence of the resilient sleeve (4) preventing 3 over tightening of the loop. The tubular handle may be telescopic. <IMAGE>
Patent GB-2282503-A (GB)
Title: Rotatable joint for communication line
Inventor: WILTON PAUL MILES
IPC: H04B10/00
Filed: 1993-09-29
Abstract: First 2, 3 and second 5, 6 pairs of signals 7 the signals of each pair being at a different frequency, are input to first and second wavelength division multiplexers 4, 7 to provide corresponding multiplexed signals 8, 10 of orthogonal polarizations. Polarising beam splitter 9 receives both multiplexed signals and passes them 11 to quarter waveplate 12. The resultant circularly polarized signal passes via the rotatable joint 1 to a second quarter waveplate 13 and thence 14 to a second polarising beam splitter 15, and then 16, 18 to third and fourth wavelength division multiplexers 17, 19. This enables the four input signals to be output 20, 21, 22, 23. <IMAGE>
Patent GB-2283098-A (GB)
Title: Accelerometer using inertia mass in a fluid e.g.air
Inventor: HOK BERTIL
IPC: G01P15/09
Filed: 1993-10-20
Abstract: An accelerometer comprises a housing (1) defining at least one chamber (2a, 2b) containing a fluid, an inertia mass (4) mounted on a flexible partition and adapted to move in response to acceleration or deceleration, thus causing a change in the volume of at least one of the chambers (22a, 2b), and a pressure sensor (7) in pressure communication with the fluid in each chamber (2a, 2b) and providing an electric output signal (8, 9) which is a continuous function of the acceleration or deceleration acting on the accelerometer. The fluid may be gas or air and the pressure sensor may be a partition between the chambers of silicon with integral piezo-resistive or piezo-capacitive elements. The diaphragm may be an elastomer or polymer and incorporate a metal foil with diffusion barrier characteristics. The resonance of the mass-fluid-diaphragm system may be greater than 400 MHz and the system oscillation may have a damping factor greater than 0.2. The accelerometer may activate a safety device eg an air bag or seat belt pre-tensioner. <IMAGE>
Patent GB-2271934-A (GB)
Title: Safety syringe
Inventor: VAN DER MERWE MARIUS
IPC: A61M5/32
Filed: 1992-04-07
Abstract: The syringe needle 5 is mounted upon the body portion 1 by an external breakable or demountable member 6 whereby the needle can be separated externally from the syringe body and an axially extending needle receiving chamber is provided which has means for separating the needle and body, whereby the separated needle can be housed within the needle receiving chamber, the chamber having an axially extending entry port in a wall thereof whereby the needle enters the chamber at least in part transversely. The chamber may particularly be formed in the plunger member 11 which is detached from the piston 10 by the breaking of a frangible connection. Ramp member may be provided in the chamber for engagement with projection(s) on the needle mounting so that the needle is separated axially from the syringe body upon introduction into the chamber. <IMAGE>
Patent GB-2270876-A (GB)
Title: Method of making a hardback book from a paperback book
Inventor: BLISSETT GARY
IPC: B42C15/00
Filed: 1993-11-10
Abstract: A method of making a hardback book from a paperback book, includes removing the paperback cover from the book and cutting up the paperback cover to form discrete cover portions 4', 5', 6'. The cut-up portions are inserted into a plastic sleeve to form a jacket assembly (14, Fig. 4), the book is bound in a hard cover and then covered with the jacket assembly. The cover portions may be connected together by strips 10 to form a cover sheet 11 prior to inserting into the plastic sleeve. A blurb sheet 12 may be provided at the step of inserting the cover portions into the plastic sleeve such that the blurb sheet can include advertising or other information. <IMAGE>
Patent GB-2279003-A (GB)
Title: Improved display arrangement
Inventor: TAYLOR STEPHEN DENNIS
IPC: A47F5/05
Filed: 1993-12-13
Abstract: A display arrangement comprises a pillar (2) and a module (5) for carrying articles to be displayed which is mounted rotatably on the pillar and which is vertically adjustable along the pillar. A plurality of modules (5) may be provided. In which case, the modules (5) are spaced vertically along the pillar. Thus, the display arrangement may be in the form of a carousel having a plurality of display modules (5) which are rotatable independently of one another and are vertically displaceable on the pillar (2). <IMAGE>
Patent GB-2286820-A (GB)
Title: Collapsible boxes
Inventor: ROWLINSON DAVID
IPC: B65D19/20
Filed: 1994-02-24
Abstract: A collapsible box structure which can be used as a load container on a pallet (1) has a sleeve (4) made from hinged panels which, when erected, fits at one end within the rim (8) of a bottom lid (3). The sleeve (4) is fixed to the rim (8) and held erected by clips (10) which have flaps which extend through aligned apertures in the rim (8) and the end region of the sleeve (4). When the clips (10) are released the sleeve (4) can be collapsed, by folding inwardly at hinge joints (19) in the middle of two opposite side walls (6), to give a flat package which can be stored between the bottom lid (3) and a slightly larger top lid (2). The lids (2, 3) can be locked together at their rims (8, 9) with the clips (10). <IMAGE>
Patent GB-2278264-A (GB)
Title: Intensive therapy bed for X-ray diagnosis
Inventor: HAYES STEPHEN
IPC: A61G7/002
Filed: 1994-04-05
Abstract: An intensive therapy bed comprises a mattress support (16) which is longitudinally slidable on a perimeter frame (12), and all of the mechanism 40 - 48 for causing the sliding and also for profiling the mattress frame as shown in Figure 1 is provided along one edge of the mattress frame. Height adjustment and also tilting and rocking is effected by jacks 57, (70) provided in pillars 62, 64 at opposite ends of a chassis, and the chassis itself includes a longitudinal member 50 which is offset to the same side of the bed as the actuator motors. This leaves a relatively large unobstructed area which is X-ray transparent. <IMAGE>