baber/WOPTO huggingface dataset:
Patent GB-2320142-A (GB)
Title: Rapid re-charging of batteries
Inventor: HARDIE JONATHAN OWEN
IPC: H02J7/00
Filed: 1996-12-04
Abstract: A battery (12, Fig.1) is charged from a constant current source (10) in charge cycles each having a fixed duration ON period, in which the battery (12) is connected to the source (10) by turning an FET switch (11) on, and an OFF period of variable duration dependent on the battery voltage and during which the switch (11) is off, whereby average charging current is varied. At a predetermined time t after the start of each ON period, the battery voltage is compared with a threshold voltage (step 21, Fig.2). The duration of the next OFF period is increased if the battery voltage exceeds the threshold voltage (step 24), and is decreased if the battery voltage is less than the threshold voltage (step 23). An off-time variable is incremented or decremented in steps 24, 23, and a "smoothed" off-time value is calculated from the new value of the off-time variable and the previous value of the smoothed off-time (step 25). Charging is terminated if the smoothed off-time exceeds a limit value Tm for more than N successive charge cycles (steps 26-29). A ROM (17, Fig.1) may store sets of values of the battery threshold voltage, limit time Tm and cycle number N for different types of battery, the appropriate set being selected according to sensing of a battery type identifier on a battery to be charged. The charging apparatus may be part of a mobile phone handset chargeable from an AC mains supply or from an automobile battery.
Patent GB-2305260-A (GB)
Title: Strobe light emission apparatus
Inventor: AOKI HARUMI
IPC: H04N9/73
Filed: 1993-08-31
Abstract: A strobe light emission apparatus having colour temperature control suitable for fill-in light lighting with a still video camera comprises first and second emitters for emitting light of respective first and second colour temperatures Kc and Kc' (degrees Kelvin); first and second colour temperature controlling filters provided in respective optical paths of the first and second emitters and having respective colour temperature conversion powers Ta and Tb; wherein the first and second colour temperature conversion powers Ta and Tb are determined so that the resultant colour temperature G of light transmitted through the two colour temperature controlling filters is within a range defined by a lower limit Ka' and an upper limit Kb'. The filters may be selectively moved into the optical paths by drive means or the quantity of light emitted by each emitter may be controlled.
Patent GB-965128-A (GB)
IPC: B60T8/42
Abstract: 965,128. Anti-skid devices. AUTOMOTIVE PRODUCTS CO. Ltd. May 23, 1963 [June 15, 1962], No. 23195/62. Heading F2F. In a liquid pressure braking system of the type described in Specification 962,933 means are provided whereby the servo device is operable only when a predetermined pressure exists in the braking system so that the servo device operates only during a brake application. As shown in Fig. 2 the chambers 38, 39 of the servo device 36 are normally connected by means of apertures 50 and open valve 49 disposed in the diaphragm unit 37, 42, 45. If the brakes are applied the pressure which acts on the plunger 34 causes it to overcome the spring 52 and so close the valve 49. The servo device can thus be operated by the sensing device if conditions require it. In another embodiment, Fig. 6, the two chambers of the servo device are connected, on operation of the sensing device, respectively to atmosphere via port 116 and to a compressed air source via port 108. The latter connection only being possible when valve 109 has been moved off seats 111, 112 by the plunger 103 due to pressure the braking system. In another embodiment wherein the sensing device operates an electric solenoid valve to connect one chamber of the servo device to a compressed air source or atmosphere, the other chamber being connected to atmosphere or a vacuum source, a switch is provided in the electric circuit of the solenoid which is closed by braking pressure in the system.
Patent GB-2321768-A (GB)
Title: Stacked capacitor
Inventor: CHAO FANG-CHING
IPC: H01L21/8242
Filed: 1997-01-30
Abstract: A semiconductor memory device with a tree-type stacked capacitor having increased area for reliable storage thereon of electrical charges representative of data. The tree-type capacitor includes a storage electrode consisting of a trunk-like conductive layer 50 and a branch-like conductive layer 42,46,52. The trunk-like conductive layer is electrically coupled to one of the source/drain regions of the transfer transistor in the semiconductor memory device and extends substantially upright. The branch-like conductive layer has one end connected to the trunk-like conductive layer and can be structured in various shapes that allow the branch-like conductive layer to have an increased surface area. A dielectric layer is formed over exposed surfaces of the trunk-like conductive layer and the branch-like conductive layer and an overlaying conductive layer is formed over the dielectric layer which serves as an opposing electrode for the tree-type capacitors.
Patent GB-2323547-A (GB)
Title: Blockage detection in a spray nozzle
Inventor: ALLSOPP GERALD ALEXANDER RICHA
IPC: B05B15/50
Filed: 1997-03-25
Abstract: Apparatus for detecting a blockage in a spray nozzle 11, comprises a temperature sensor 14 in or adjacent to the nozzle and exposed to liquid flowing into, through or from the nozzle and means 15 for monitoring the temperature sensed by the temperature sensor.
Patent GB-2319126-A (GB)
Title: Initial arcing sustaining power supply for DC arc welder or cutter
Inventor: MORIGUCHI HARUO
IPC: B23K9/073
Filed: 1997-10-23
Abstract: A power supply for a DC arc welder or cutter applies a main DC supply between output terminals 21, 22 by means of a rectifier 12, high frequency inverter 14, transformer 16, rectifier 18 and smoothing reactor 20, and superimposes a high frequency arc initiation current at the terminals 21, 22 by means of a high frequency generator 30 feeding a voltage boosting transformer 32 having a first secondary winding 42 coupled to terminals 21, 22 via a high frequency bypass capacitor 34. For initially sustaining the arc, a high DC voltage is derived from the generator 30 and applied between the terminals 21, 22 or across the capacitor 34, so that arcing can be sustained even if the reactor 20 is too large to allow a sufficiently large current to flow from rectifier 18 at the time of starting the arc. The sustaining voltage may be derived via a rectifier 36 from another secondary 44 of the transformer 32, winding 42 having an output of several kilovolts and winding 44 having an output of several hundred volts. Alternatively, the arc sustaining high DC voltage may be derived from generator 30 by means of a separate transformer. When a controller 28 detects that a large enough current to sustain the arc is flowing through the reactor 20, the generator 30 is turned off to stop generation of the high frequency arc initiation current and the arc sustaining high DC voltage.
Patent GB-2321834-A (GB)
Title: Cryptographic signature verification using two private keys.
Inventor: VANSTONE SCOTT A
IPC: H04L9/32
Filed: 1998-01-29
Abstract: A digital signature verification protocol utilises a pair of signature components incorporating a pair of private keys one of which is a long term key and the other of which is a short term key. The long term key is applied to one of the signature components to reveal the short term key. The short term key is then used to compute a value of a signature component contained in the signature. If the computed value and received values agree then authenticity is verified. It can be used with smart cards.
Patent GB-2337965-A (GB)
Title: Lift truck
Inventor: LAMBERT BERNARD
IPC: B62D21/18
Filed: 1998-06-03
Abstract: A lift truck 1 has a longitudinal beam 2 as its main structural member, said beam forming a box at one end and carrying a transverse shaft 6 for a lifting arm 4 at the other end. The top surface 16 of the beam may slope downwardly. The beam may carry a driving cab 7 on one side and an engine 9 on the opposite side, with the lifting arm in its lowered position lying between the two. The plates forming the beam may be provided with mortise and tenon joints such that it can be assembled prior to welding without the need for special tooling (fig 10). The arm 4 may be fixed or telescopic and may carry a variety of tools 8 at its end. The truck may be provided with stabilisers.
Patent GB-2328171-A (GB)
Title: Deformable casting rolls
Inventor: PERRY ROBERT
IPC: B22D11/06
Filed: 1998-07-31
Abstract: A casting roll 1 for casting molten metal and forming it into a solid continuous strip form comprises a shell 6 coupled to a drive shaft 9. A plurality of shaper units 8, 12 is arranged inside the shell, to allow the shape of the shell to be adjusted. The drive shaft 9 is of large diameter and is coupled directly to the shell 6. The shaper units act between the inside of the shell and the drive shaft, which, being massive, acts as the primary structural element to absorb the reaction forces from the shaper units. A further set of shaper units spaced 180‹ round the shaft may be provided, to enable the shape of the shell to be controlled more accurately. The drive shaft may be coupled to the centre of the shell (Fig. 3) or to one end.
Patent GB-2343149-A (GB)
Title: Finger tool with adjustable strap
Inventor: CHAMPION-DE-CRESPIGNY PHILIP
IPC: B43K23/012
Filed: 1998-10-24
Abstract: The tool includes an adjustable strap comprising a pair of resilient members 30,31 connected to a bar 32 which is releasably-engagable with a hook (33,Fig 2) on a tool carrier plate 6. A tool is slidably-receivable on the plate by means of channels defined by re-entrant sides 12,14 and 16,17. The tool can be locked in position on the plate by teeth 38 actuatued by a sliding release mechanism 4 and locking pin 36. In an alternative embodiment the strap may be an elasticated web 3a, Fig 7(c). The tool may comprise a writing instrument, cosmetic applicator or a hairdressing tool.
Patent GB-2345409-A (GB)
Title: Extendible, rod mounted antenna for reducing rf exposure
Inventor: BIRD RICHARD FAIRFAX
IPC: H01Q1/24
Filed: 1998-12-29
Abstract: A mobile telephone 1 has a short or nodal stub antenna 2 mounted on the end of a rod or wire 3 which is extendible outwards from the body of the device and which is constructed in such a way as to provide a non-radiative transmission line to the antenna when extended. Extension of the antenna may be effected by mechanical, electrical or manual means. Reduces exposure of user to electromagnetic radiation.
Patent GB-2336042-A (GB)
Title: Attachment system for electronic devices
Inventor: YERGENSON ROBIN P
IPC: H01R13/629
Filed: 1999-01-28
Abstract: An attachment system that facilitates the electrical connections, mechanical connections, or both between computers, computer peripherals and other electronic devices. In one embodiment, the system includes an electrical connector and a cam (18). The electrical connector has a first part (38) connected to the one of the electronic devices and a second part (62) connected to the other electronic device. The cam (18) is operatively coupled to the first part (38) of the electrical connector. The first part (38) of the electrical connector is operative in response to rotation of the cam (18) between a first position in which the connector parts (38 or 62) are not connected and a second position in which the connector parts (38 or 62) are connected. In another embodiment, the system includes an electrical connector and a moveable carriage (16). The carriage (16) is mounted to one of the electronic devices. The electrical connector has a first part (38) on the carriage (16) and a mating second part (62) on the other electronic device. The carriage (16) is moveable between a first position in which the connector parts (38 or 62) are not connected and a second position in which the connector parts (38 or 62) are connected. This embodiment may also include a cam (18) that is operatively coupled to the carriage (16). The carriage (16) is operative in response to rotation of the cam (18) to move between the first position and the second positions to connect and disconnect the connector.
Patent GB-2346702-A (GB)
Title: Sag monitor for drilling mud
Inventor: MEETEN GERALD HENRY
IPC: G01N15/04
Filed: 1999-02-15
Abstract: An apparatus and a method are described for measuring the sag properties of a drilling fluid by using a conically or frustro-conically shaped inner body 22 and an outer body 21 having an opening with contours closely matching those of inner body such that in conjunction inner and outer body are separated by a narrow gap 11 defining a conically or frustro-conically volume with a vertex; a motor drive for rotating the inner body with respect to the outer body; and a sampling access to determine the density of said drilling fluid within a localized part of said volume, wherein said sampling is permanently located in vicinity 08 said vertex.
Patent GB-2349880-A (GB)
Title: (Thio)morpholinium salts having SHG activity
Inventor: DUTTA LUCY MARIE
IPC: C07C59/255
Filed: 1999-05-10
Abstract: Materials suitable for use in non-linear optical devices comprise morpholinium or thiomorpholinium salts of hydroxy-substituted aliphatic or aromatic carboxylic acids. Preferred acids are hydroxybenzoic, tartaric and cinnamic acids and preferred salts include morpholinium 3-hydroxybenzoate, morpholinium 4-hydroxybenzoate, morpholinium 3,5-dihydroxybenzoate, morpholinium 3-fluoro-4-hydroxybenzoate, dimorpholinium 2,3,5,6-tetrafluoro-4-hydroxybenzoate, morpholinium 4-(4-hydroxyphenyl)benzoate, morpholinium tartrate, morpholinium 4-hydroxycinnamate, thiomorpholinium 4-hydroxybenzoate and thiomorpholinium 3,5-dihydroxybenzoate.
Patent GB-2351866-A (GB)
Title: Stereoscopic display
Inventor: HARROLD JONATHAN
IPC: G02B30/25
Filed: 1999-07-07
Abstract: A stereoscopic display comprises a spatial light modulator 1 such as a liquid crystal device. The modulator 1 comprises an array of pixels 6 such as RGB pixels. A retarder array is disposed on the front of the spatial light modulator 1. The array comprises first stripes 21, 22 and second stripes 23 which extend vertically and alternate with each other horizontally. The first and second stripes supply light from the modulator to an observer 9 with different, preferably orthogonal, polarisations. Each of the stripes 21 to 23 has a width which is greater than the horizontal pitch of the pixels 6. In a preferred embodiment, a lenticular screen 12 is disposed in front of the retarder array. The lenticules extend vertically and are spaced horizontally with a pitch which is substantially equal to the pitch of the pixels 6.
Patent GB-2335659-A (GB)
Title: Low temperature mixing of high viscosity heat cured rubbers
Inventor: SUMPTER CHRIS ALLEN
IPC: C08L83/04
Filed: 1996-06-28
Abstract: A process for making a heat curable rubber composition which comprises the steps of: (a) mixing 100 parts by weight of a curable component selected from the group of alkenyl silicone gums having the formula: (MaM<vi>1-a)(D<vi>)x(D)x(D)y(MaM<vi>1-a) where a is zero or one and x and y are zero or integers whereby the sum of x+y yields a gum having a viscosity ranging from 200,000 to 200,000,000 centipoise at 25‹C and whereby the sum of a+x+y yields a gum having an alkenyl content ranging from 0.20 to 14.00 weight percent subject to the limitation that x must be greater than zero when a is one, where M = R<1>3SiO1/2 with R<1> selected from the group consisting of 1 to 8 carbon atom alkyl groups, phenyl, and trifluoropropyl; M<vi> = R<2>(R<1>)2SiO1/2 with R<1> selected from the group consisting of 1 to 8 carbon atom alkyl groups, phenyl, and trifluoropropyl and R<2> selected from the group of 2 to 10 carbon atom linear or cyclic alkenyl groups; D<vi> = R<2>(R<1>)SiO2/2 where R<1> and R<2> are as previously defined; D = (R<3>)2SiO2/2 where each R<3> is independently selected from the group consisting of 1 to 8 carbon atom alkyl groups, phenyl, and trifluoropropyl; with 0.01 to 1.5 parts by weight of a vinyl specific peroxide curing agent; and (b) controlling the temperature of the mixing whereby the temperature of the mixture does not exceed 100‹C during the process of mixing.
Patent GB-2342255-A (GB)
Title: Mobile phone with communication channel switching
Inventor: TOKUYOSHI TAKAYA
IPC: H04B7/26
Filed: 1999-07-13
Abstract: A mobile phone includes an error detecting section (3) and a channel switching control section (4, 5, 6). The error detecting section (3) detects the frame error rate on a present communication with one of a plurality of base stations. The channel switching control section (4, 5, 6) determines whether communication quality is degraded, based on the detected frame error rate and a past channel switching results. Also, the channel switching control section determines that channel switching from the present communication channel to a new communication channel should be performed, when it is determined that the communication quality is degraded. Past results determine the level of the threshold for frame error rate, the threshold being set to avoid multiple switch attempts in a noisy environment. Switching may be to a new channel on the same base station or to a new base station, by further taking account (2) of the received field intensity.
Patent GB-2344075-A (GB)
Title: A magnetic display apparatus with spring biassed eraser
Inventor: MAK KAI-SHUN
IPC: B43L1/00
Filed: 1999-07-13
Abstract: A magnetic display apparatus comprising a screen 200 with a honeycomb structure including cells 210 containing iron particles in a viscous liquid, is provided with a flat rectangular magnetic eraser 400 mounted beneath the screen. The eraser is supported on a plastic body 300 biassed away from the screen by leaf springs 330. Depressing button 340 on the lower side of the body moves the eraser 400 into contact with the rear of the screen to effect erasure.
Patent GB-2355021-A (GB)
Title: Stowable walkway
Inventor: MITTON BRYAN EDWARD
IPC: E01C9/08
Filed: 1999-07-21
Abstract: A walkway (10) comprises a number of sections (12) which are interconnected such that the walkway may be folded or rolled into a compact shape (Figure 3a) for storage or transportation. Preferably the sections are identical and are connected together by means of a pin passing through an aperture (34) in a number of inter-engaged projections (16, 20). An end section is allowed to pivot downwards relative to an adjacent section, upwards pivoting being prevented by abutment with the adjacent section.
Patent GB-2353154-A (GB)
Title: Phase-locked loop circuit adapted to perate both as a digital modulator and as a frequency synthesizer at the same time
Inventor: CHAPMAN DAVID MARK
IPC: H03C3/09
Filed: 1999-08-10
Abstract: A phase-locked loop circuit comprises a voltage controlled oscillator 101, means 103 for receiving a reference frequency and the output of a divider as inputs, the means 103 providing a signal for controlling said oscillator, a frequency multiplier 201 which multiplies the output of the oscillator and then applies the multiplied output to the frequency divider 102 to be divided thus producing said output of the divider. A digital input source 105 controls the divide ratio of the divider and the circuit may be adapted to operate as a digital modulator, or as a frequency synthesizer, or as both at the same time. The minimum step size of the digital input controlling the divide ratio of the divider 102 can thus effect a phase change of 1/m cycle (2  f  /m radians) at the output of the oscillator where m is the multiplying factor of the frequency multiplier. The circuit increases the phase resolution at the output of the voltage controller oscillator.
Patent GB-2346172-A (GB)
Title: Latch system
Inventor: LARSEN MARVIN L
IPC: E05B65/20
Filed: 1999-08-13
Abstract: Latch system 10 comprises an interior latch portion 12 and an exterior latch portion 14 interconnected through a closure element 16 eg a sliding door such that handles 18 and 20 can selectively operate latch assemblies 22, 24 mounted on latch portion 12. Latch system 10 operates to releasably maintain closure 16 in a first closed position (see Figure 5) and a second open position (see Figure 7). Latch assembly 24 cooperates with strike assembly 30 and latch assembly 22 cooperates with a separate strike assembly 26. Closure element 16 is retained in open and closed positions by latch assemblies 22, 24 under the operation of handles 18 and 20. The direction of movement of the handles to release a respective latch corresponds to the direction of movement of the released closure element. The handles can also be moved transversely to the release directions to lock the handles against release movement.
Patent GB-2341919-A (GB)
Title: Cartridge case extractor
Inventor: SCHMEES HEINER
IPC: F41A15/10
Filed: 1999-09-09
Abstract: An cartridge ejector/extractor device 9 is mounted to be longitudinally displaced on the base plate (3, Figure 1) of a breech and comprises an ejector arm 13 with a cartridge extractor claw 18 on one end, pivotal against a spring 15 (Figure 2). Arm 13 has a guide part such as roller 21 which, during loading of a cartridge, bears against a cartridge case 8 and pivots arm 13 against spring 15 so that claw 18 does not contact the case. After loading, guide part 21 drops behind case 8 (Figures 4 and 5) allowing arm 13 to pivot downward. Claw 18 then engages groove 7 on the case, ready for cartridge extraction. The device additionally has a cushioning buffer 22 formed by a spring loaded pressure rod 24. Use of guide 21 serves to prevent damage to cartridge case 8 by extractor claw 18.
Patent GB-2354036-A (GB)
Title: Clamping two pipes against vibration
Inventor: FLOCKHART PETER
IPC: F16L55/035
Filed: 1999-09-11
Abstract: An apparatus for clamping two pipes or the like (2,3) together to minimise relative vibration of the pipes. The apparatus comprises a strut (50) and a first (11,12) and second (21,22) pair of semi-circular collar rings which clamp around the pipes (2,3). The first pair of collar rings (11,12) are provided with rotational and translational adjustment mechanisms permitting angular and longitudinal adjustment of the strut (50). The invention provides a clamping apparatus which allows sufficient adjustment so that a single prefabricated apparatus can be used in a range of situations.
Patent GB-2348640-A (GB)
Title: Saline soluble fibres
Inventor: JUBB GARY ANTHONY
IPC: C03C13/00
Filed: 1999-10-20
Abstract: A saline soluble fibre having a maximum use temperature of 1200äC or more comprises:-<BR> ```SiO<SB>2</SB> > 64.25 wt%<BR> ```CaO >18 wt%<BR> ```MgO < 17 w%<BR> and in which the amount of MgO in mol% is greater than the amount of CaO in mol%, and the silica excess (i.e the silica remaining
Patent GB-190018846-A (GB)
IPC: A23F3/12
Abstract: 18,846. Perman, W. F. Oct. 22. Tea.-Fig. 2 shows a vertical section of a tearolling machine. The leaf is placed in the box D, which is provided with vertical battens g and a horizontal ring g', and with a vertical door. The rotating disc E carries a series of leaf-turning battens f, and is surrounded by the fixed part C, the space q being covered by a plate l. The rotating cone F is provided with flutes in its outer surface, and is mounted on the shaft G, which passes through the sleeve K secured to the disc E. The shaft G and sleeve K are rotated in opposite directions by the bevel-wheels L, H, which gear with the wheel M on the driving-shaft N.
Patent HU-T64567-A (HU)
Title: Method for producing new cyclosporines and preparations containing said compounds as active agent
Inventor: BOELSTERLI JOHANN JAKOB
IPC: A61K38/00
Filed: 1993-02-16
Abstract: Cyclosporins wherein the residue at the 1-position has the formula I   <CHEM> in which -x-y- is -CH=CH-(trans) or -CH2-CH2-, X is 0 or S and R is hydrogen, optionally halo or hydroxy substituted-C1-3-alkyl, -alkoxy or -alkylthio, or amino or mono- or di-(C1-2alkyl)-amino, useful as pharmaceuticals, preferentially for topical administration in particular for asthma therapy.