baber/WOPTO huggingface dataset:
Patent GB-2167698-A (GB)
Title: Power wrenches
Inventor: WAGNER PAUL-HEINZ
IPC: B25B21/00
Filed: 1985-10-25
Abstract: There is disclosed a pressure medium operated power wrench which comprises a head piece (11) having a rotatable annular member (14) which is engageable with a key nut or the like, a ratchet mechanism (23) coupled with the annular member and operable to impart uni-directional rotation to the annular member, a lever (18) coupled with the ratchet mechanism, and a piston-cylinder unit (24, 25) coupled with the lever (18) and operable under pressure medium action so that the piston (25) undergoes linear reciprocation and thereby imparts angular reciprocation to the lever (18) so as to rotate the annular member (14) uni-directionally via the ratchet mechanism (23). The cylinder (24) is detachably connected to the head piece (11) by means of a non-circular profile portion (36) which engages in torsionally resistant manner with a counter profile portion (37) of the head piece (11), and a holding device in the form of a threaded bush (38) locks the cylinder (24) to the head piece (11) against relative axial displacement. <IMAGE>
Patent GB-2187385-A (GB)
Title: Method of combatting colorado beetles using chemical compounds and compositions containing the chemical compounds
Inventor: BROWN KEVIN CRAWSHAW
IPC: A01N53/08
Filed: 1986-03-07
Abstract: A method for combatting colorado beetles at a locus, which comprises applying the locus a compound of formula:   <IMAGE> wherein R<1> represents a halogen atom or a methyl group; R<2> represents a halogen atom, a methyl or trifluoromethyl group; and X represents a hydrogen atom or a fluorine atom; in the form of a trans enantiomer pair consisting of either the [1R trans]S and [1S trans]R or the [1R trans]R and [1S trans]S isomers; and pesticidal compositions containing the trans enantiomer pairs.
Patent GB-2187933-A (GB)
Title: Cantilever racking system
Inventor: HOLDEN J
IPC: A47B81/00
Filed: 1986-03-20
Abstract: A cantilever racking system 10 has a central column 12 and side arms 14. The column 12 has a base comprising one part 16 fixed in manufacture and extending beneath the side arms 14 and a second, releasably attachable, part 18 which when in place, extends on the opposite side of the central column to the first part 16. The system of the invention easily converts from a single to a double sided racking system. <IMAGE>
Patent GB-2176472-A (GB)
Title: Method for producing a preform mould for optical fibres
Inventor: BONEWITZ DR HANS-ULRICH
IPC: C03B37/018
Filed: 1986-03-21
Abstract: A method for the production of a preform blank for optical fibres, which has a core and an outer jacket of fused silica or doped fused silica, which incorporates the following process stages: preparing a tube (1) as an outer fused silica jacket; inserting at least one porous or loose material element (2) into the fused silica tube; connecting the extremities (4, 6) of the fused silica jacket tube to a gas feed and discharge system; heat-treating the fused silica/porous or loose material element at approximately 1000 DEG C in the gaseous atmosphere which is passed through the porous or loose material element; sealing off one extremity (4) of the fused silica jacket tube; vitrifying the porous or loose material element whilst maintaining a reduced pressure in the fused silica jacket tube and simultaneously drawing into the preform blank whilst shrinking-on the fused silica outer jacket during traversal of a heating section. <IMAGE>
Patent GB-2175746-A (GB)
Title: A miniature variable condenser
Inventor: HORIE HIROAKI
IPC: H01G5/06
Filed: 1986-05-06
Abstract: A miniature variable condenser is composed of a rotor shaft (1) to which a plurality of rotor plates (4) are attached, a front-side board (2) and rear-side board (3) to which a plurality of stator plates (6) are attached correspondingly to the rotor plates (4) for supporting the rotor shaft (1), and strut rods (8) for securing together the front-side board (2) and rear-side board (3), to provide a plurality of variable condenser units. At least one shielding board (11) is provided for shielding the variable condenser units from one another. The board (11) is held between the units by means of a strut portion (2a) of the front- side board (2) and a strut portion (3a) of the rear-side board (3) to reduce the coupling capacitance between adjacent variable condenser units. <IMAGE>
Patent GB-2178244-A (GB)
Title: A variable capacitor incorporating a variable resistor
Inventor: ITO YASUFUMI
IPC: H01C10/34
Filed: 1986-06-16
Abstract: A variable capacitor incorporating a variable resistor comprises a slider support (5) equipped with sliders (5a and 5b), an element (4) having a resistor layer (4a and 4b) with which the sliders (5a and 5b) make sliding contact and a boxlike member (3) in which the element (4) is held. The variable capacitor (1) has a rotor shaft (1b) protruding from its front baseplate (1a), and the slider support (5) is mounted to the shaft (1b). The slider support (5) is disposed between the boxlike member (3) or the element (4) and the front baseplate (1a) of the capacitor (1). <IMAGE>
Patent GB-2192278-A (GB)
Title: Apparatus for and method of flow injection analysis
Inventor: MALCOLM-LAWES DAVID
IPC: G01N35/08
Filed: 1986-07-01
Abstract: A sample duct 12 in a carrier line 10 may be isolated by three-way valves 14, 16, blocking the flow of carrier or flushing liquid from reservoirs 24, 26. The sample duct 12 may be connected to a suction source 18, 20 and a sample reservoir 17 respectively by the valves 14, 16. When the sample duct 12 is connected into the carrier line 10 pressurised carrier fluid may convey the sample for analysis through a manifold 38 comprising valves 40 through which reagents may be introduced from reservoirs 42. The sample then passes through a thermostatically controlled reaction tube 46 to a valve 50 which switches it between waste and an outlet 48 leading to a detector for analysis. The carrier and flushing fluids and the reagents are pressurised by gas from an inlet 30 which is conveyed via an overpressure vent 32 to the reservoirs 24, 26, 42 by lines 28, 44. Rigid inert tubing is used throughout the carrier line 10, sample duct 12, manifold 38 and reaction tube 46. <IMAGE>
Patent GB-2180150-A (GB)
Title: Recliner
Inventor: WAKEHAM JAMES
IPC: A47C9/10
Filed: 1986-09-09
Abstract: A recliner is disclosed which has a pair of U-shaped frame members 1 which are pivotally connected by straps at the bases of the U-shaped frames so as to be pivotable between an open and a closed position. The frame has a flexible resilient cover 4 with a trailing portion which can be positioned on the ground for a user to lie on. The uprights 3 of the U-shaped members act as legs to support the recliner and the angle of recline can be varied easily by pivoting the frame members. The frame is preferably made of lightweight tubular aluminium. <IMAGE>
Patent GB-2185040-A (GB)
Title: The propagation of yeast, fermentation employing that yeast and products of that fermentation
Inventor: QUAIN DAVID EDWIN
IPC: C12G1/022
Filed: 1986-12-30
Abstract: It was previously thought that brewers' yeast, Saccharomyces cerevisiae, was incapable of employing mannitol or sorbitol as a source of carbon during propagation in a catabolite derepressive mode. However many strains of S. cerevisiae can in fact employ mannitol and/or sorbitol in this way. Simple tests reveal those strains that are suitable. Positive action is preferably taken to introduce oxygen during propagation. A yeast extract or other undefined growth medium may need to be present. Yeast propagated in this manner may be used for the fermentation of fermentable carbohydrates in an aqueous medium, and in particular may be used for brewing beer or for making wine.
Patent GB-2191130-A (GB)
Title: Method of forming tearing portion in container lid
Inventor: TANIUCHI KEIJI
IPC: B21D51/38
Filed: 1986-09-08
Abstract: This invention relates to a method of forming a tearing portion in a container lid, and belongs to the technical field of manufacturing a container lid which can be opened by tearing in the can manufacturing technology. This invention enables the manufacturing of a container lid which has a harmless opening edge when it is opened by tearing and which enables saving of the power required to tear the lid open by providing the peripheral portion of an openable lid member with a tear guide lines while forming protuberances at that portion of the container lid by folding a plate material.
Patent GB-2205500-A (GB)
Title: Massaging aid
Inventor: ANDREWS HILDA
IPC: A61H15/00
Filed: 1987-06-06
Abstract: A massaging aid, particularly for use by sufferers of cervical spondyloses, comprises a complex curved elongate member 3 having a roller 1 at one end and a handle 2 at the other. The curve of the member 3 is in two planes and enables the sufferer to use the aid with the upper arm 10 in a dependant position. <IMAGE>
Patent GB-2196117-A (GB)
Title: Microbiological assay device
Inventor: LEWIS IAN HARTLEY
IPC: G01N7/18
Filed: 1987-08-06
Abstract: A device for detecting the presence of and determining the extent of biological contamination of a sample is disclosed. A sample vessel 14 is brought into sealed engagement with the device 10, and a liquid reagent, liquid hydrogen peroxide, is added to the sample during operation of the device. Catalayse contained in the contaminated sample breaks down the hydrogen peroxide releasing gaseous oxygen, the increase in gaseous pressure being detected by a pressure sensor 23. <IMAGE>
Patent GB-2361056-A (GB)
Title: Optical apparatus
Inventor: GREGORY DOUGLAS ALBERT
IPC: G02B5/22
Filed: 1987-08-20
Abstract: A pair of goggles for preventing eye damage in the presence of an intense radiation source includes two evacuated envelopes (3) for being positioned in front of the user's eyes. Each envelope includes a forward and a rearward window (4,5 respectively), the forward window including a layer of scotophor material. An electron gun is located within each envelope and is arranged to bombard, and hence darken, a region of the layer (7) corresponding to the direction of arrival of a beam of intense radiation as detected by detectors (26), so as to obscure, or at least shade, the source of the high intensity radiation as perceived by the wearer.
Patent GB-2213472-A (GB)
Title: Sheet feeding apparatus
Inventor: PHILLIPS ROGER
IPC: B65H29/62
Filed: 1987-12-09
Abstract: Sheet feeding apparatus, for example a banknote acceptor, comprises first, second, and third feed systems (2, 3; 9', 12; 9', 11); a control system comprising three motors (M1, M2, M3) for driving each of the feed systems; and a microcomputer (31). The first feed system (2, 3) feeds sheets to a stacking station (24) to which a previously formed stack of sheets (28) is fed by the third feed system (9, 11). The control system operates the first and third feed systems to cause a sheet fed by the first feed system (2, 3) to be assembled with the previously formed stack (28) as that stack is fed past the stacking station (24), to the second feed system (9', 12). The second and third feed systems (9', 12; 9, 11) are reversible to enable a stack of sheets held by the second system to be fed back past the stacking system (24) to the third feed system. A validator (90) detects sheets fed by the first feed system (2, 3) and the microcomputer (31) responds to the detection of a predetermined type of sheet, such as a counterfeit banknote, to prevent the third feed system (9, 11) feeding the stack of sheets to the stacking station (24) and allowing the detected sheet to be fed directly to the second feed system (9', 12) <IMAGE>
Patent GB-2218689-A (GB)
Title: Carrying handles
Inventor: TAYLOR GERALD M
IPC: B65D5/46
Filed: 1988-05-19
Abstract: A one-piece carrying handle for a carton, container or other like object comprises a base (10) which is positioned on the inside of a wall of the carton, and a flexible strap (12) integral with the base at one end and having a latching tongue (14) at its free end. In use, two spaced holes are cut in the carton wall, the base (10) is inserted through one hole, and the tongued end of the strap (12) is pushed down through the other hole to latch in a hole (24) in the base. <IMAGE>
Patent GB-2206674-A (GB)
Title: Gas control valve
Inventor: YATES THOMAS RONALD
IPC: F16K17/04
Filed: 1988-05-20
Abstract: A gas control valve comprises a body 111 having a passage 114 for flow of gas in a direction from an inlet 112 towards an outlet 113, valve means 132 to close said passage under the control of a latch means moveable between a retaining position in which the latch means is releasably engaged with the valve means to retain the valve means in a first open position and a release position in which the latch means is released from engagement with the valve means to permit of movement of the valve means to a second, closed position the latch means being moved from the retaining position to the release position responsive to the pressure of the gas supply. The latch means may be moveable, by a single gas pressure sensing means, in opposite directions to different release positions depending on whether the pressure rises above or falls below a predetermined pressure range. As shown, the latter is moveable parallel to the direction of valve movement. In a modification, the latch is mounted for movement transversely of the direction of valve movement. <IMAGE>
Patent GB-2219250-A (GB)
Title: Patterning of sheet material
Inventor: STRINGFELLOW IAN
IPC: C14C11/00
Filed: 1988-05-25
Abstract: A method of patterning a sheet material (10) such as leather, is provided in which the sheet (10), after application of a dye layer to its front face (13) is disposed with its rear face in contact with a raised pattern (12) on a support (11) and an applicator (14) is urged into contact with the front face to cause dye solvent to engage the front face (13) and remove dye from portions of the sheet in register with the raised pattern. The method can be carried out as piece work, manually, or by a continuous process, through press rollers. Subsequently, a sealant coating can be applied to the resulting pattern. The method can confer an aged look to leather for upholstery, clothing, handbags, etc. <IMAGE>
Patent GB-2207670-A (GB)
Title: Indole derivatives
Inventor: KONG YUN CHEUNG
IPC: C07D209/94
Filed: 1988-06-10
Abstract: Analogues of yuehchukene e.g. 2, 5'-dimethyl-yuehchukene, 2, 5'-dimethoxy-yuehchukene, N, N'-dimethoxy-yuehchukene, N, N'-dimethyl-yuehchukene, N'-methyl-yuehchukene, dihydro-yuehchukene, and 9, 10-dihydroxy-yuehchukene, monoindolyl compounds having the formula:   <IMAGE> where R' and R'' each independently represents a hydrogen atom, a lower alkyl or lower alkoxy group, and R''' represents the group:   <IMAGE> in the 2 or 3 position, 6, 6a - seco - yuehchukene and iso - seco - yuehchukene have activity: as female fertility regulating agents and/or are useful precursors of yuehcukene derivatives, yuehchukene being of the formula:-   <IMAGE> Also, compounds containing a 9-methyl-6a, 7, 8, 10-tetrahydroindano [2, 1, b] indole nucleus:   <IMAGE> are synthesised in a multistage process including the intermolecular Diels-Alder cyclization of an N-tosyl-3-(3-methylbuta-1,3-dienyl) indole, with a dienophile to form a 2-(3'-N-tosylindolyl)-4-methylcyclohex-3-enyl carboxylic acid, followed by a intramolecular acylation to form N-tosyl-9-methyl-6-oxo-6a-7,8, 10a-tetrahydroindano [2, 1, b] indole.
Patent GB-2207552-A (GB)
Title: Thyristors
Inventor: CREES DAVID EDWARD
IPC: H01L29/74
Filed: 1988-07-21
Abstract: A thyristor having a main cathode 1 and an anode electrode 2 between which conduction occurs, also includes a region of long charge carrier lifetime 12. During forward conduction between the cathode 1 and anode 2, carriers diffuse into the region of long lifetime region 12. If, during reverse recovery, but prior to the thyristor recovery time, a positive going voltage ramp is applied across the device, turn-on is initiated in the long lifetime region 12 due to the presence of unrecombined charge and displacement currents generated. The current produced is limited by resistors 9 and 17 to prevent damaging high levels and is used to switch on the remainder of the thyristor (via an amplifying gate) without any damage to the device occurring. In previous thyristors not including a region of long carrier lifetime, such a voltage might result in turn-on occurring over only a very small volume and the heat dissipated could destroy the thyristor.
Patent GB-2212668-A (GB)
Title: Circuit housings
Inventor: CORNELIUS RICHARD HENRY
IPC: G01K7/16
Filed: 1988-11-14
Abstract: A circuit housing, for a probe (18) for a fluid vessel, has a hollow body (2) and a cap (1). The probe (18) is attached to the base of the body and connector wires (19) from the probe pass up through the body (2) and the cap (1) to be secured to terminals (5) recessed into the exterior of the cap. A printed circuit board (20), profiled to match the interior of the body (2), fits into the latter and connections from that board to the terminals (5) pass up through the cap and are similar within the recesses. The probe contains a thermocouple or resistance thermometer. <IMAGE>
Patent GB-2226704-A (GB)
Title: Deflection of radiation by particulate matter
Inventor: WATKINSON CHARLES J
IPC: C23C14/24
Filed: 1988-12-29
Abstract: Material for the deflection of radiation, eg light or radio waves, comprises small particles of a relatively light carrier material, e.g. glass or basalt flake, at least partially coated with a metal or metal alloy eg aluminium or copper, having radiation deflecting properties. There is also provided a method of protecting a target against attack by a missile making use of the material and a method of making the material.
Patent GB-2214270-A (GB)
Title: A reel holder for a device for manufacturing video pancakes
Inventor: KIM JAE HWAN
IPC: G11B15/32
Filed: 1989-01-16
Abstract: A flangeless-type reel holder 10 for a device manufacturing video pancakes including a ring-type leaf spring 15 fitted around the reel holder 10. The reel holder 10 is fitted around a sleeve 20 mounted on a drive shaft of the device, by means of a bearing 30 interposed therebetween. The reel holder 10 is directly coupled in the outer rim of the bearing 31. The outer diameter of a leaf spring 15 fitted around the reel holder 10 is larger than that of an annular rim of the reel holder 10 so that the inner peripheral surface 41 of the reel hub 40 to be fitted around the reel holder 10 can closely contact with the outer surface of the leaf sping 15. <IMAGE>
Patent GB-2218287-A (GB)
Title: Channel display device and alarm in programme reservation system
Inventor: HASHIMOTO KAZUO
IPC: H04N7/16
Filed: 1989-04-28
Abstract: In a personal channel display device in a TV program reservation system for reserving a TV program suitable to an individual's taste, a reserved TV channel number is always displayed on a display unit of a TV set, and an alarm signal can be generated when a reserved time comes so as to inform a person watching any program by manual operation, that the reserved time has arrived. On each of four divided display portions of the display unit, it is possible to display each of the reserved channels for family members, each of the reserved channels during a predetermined interval of time for an individual, or a channel and a code number when all TV programs are classified into corresponding digits. Further for recording purposes, a user can obtain the displayed channel by voice or other indication via telephone from a remote location. 
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Patent GB-2220099-A (GB)
Title: Compact CMOS analog crosspoint switch matrix
Inventor: HARRIS COLIN
IPC: H01L27/112
Filed: 1989-05-23
Abstract: In an integrated circuit analog crosspoint switch insulated gate FET array, to reduce the required substrate area, adjacent pairs of FETs have a common diffused region (12) connected to an output (23) and respective separate diffused regions (15, 28) connected to separate inputs (21, 32) to allow switching connection of either or both inputs to the output by appropriate switching signals applied to the transistor gates (36, 37). The separate single diffused regions and the central common diffused regions alternate continuously in a row, separated by the channel regions forming the various transistors. The result is a continuous row of transistors having common diffused regions, except for the transistors at the end of the row, which have their outer diffused regions (15, 31) not in common with any other. <IMAGE>
Patent GB-2221310-A (GB)
Title: Measuring the propensity of a material to acquire an electrostatic charge
Inventor: TANIGUCHI MOTOJI
IPC: G01R29/24
Filed: 1989-07-11
Abstract: The propensity of a material (eg textile) to pick up electrostatic charge is measured by rubbing a sample S of the material and then sensing the induced electrostatic voltage. A rubbing unit 10, 11 and extendable pedestal 9 enable the rubbing action and a sample table 16 then carries the sample S to a measuring position beneath an electrostatic voltage sensor 13. A data processor (3, Figure 8) controls the measuring operation and processes the data obtained. …<IMAGE>…
Patent GB-2236244-A (GB)
Title: Chairs
Inventor: NORMAN RICHARD F
IPC: A47C7/54
Filed: 1989-09-29
Abstract: A chair with a tubular frame has a detachable arm rest 20 having a frame with legs 24 terminating in spigots 26 which plug into sockets formed by tubular members secured to cross-members 16 of the seat frame or formed by end portions of tubular cross members 16 themselves. A fitment such as a writing support or pallet 40 may be detachably fitted, in turn, to the arm rest 20. The chairs may be stacked after detaching the arm-rest. Alternatively, the chairs may be connected together in a row via a linking member comprising an L-shaped metal tube carrying at each end tubular cross-members which fit into the fore and rear pairs of sockets formed by the tubular members secured to cross-members 16 of adjacent chairs, the other pair of fore and rear sockets being available to receive the spigots 26 of the arm rest assembly 20. In another embodiment the legs 24 of the arm rest frame are welded to the mid-point of transverse rods or tubes so that the arm-rest can be connected between two identical chairs. <IMAGE>
Patent GB-2238629-A (GB)
Title: Motor driven control valve
Inventor: COTTRELL BRIAN JOHN
IPC: F24D19/10
Filed: 1989-10-13
Abstract: A motor driven control valve for controlling a hot water and central heating system comprises a valve member (20) able to selectively take up one of three positions by the operation of an electric motor 68. The motor can be driven, braked by d.c. current through a diode D2 or demagnetised by a low a.c. current through a resistor R4, so that a spring repositions the valve. A control circuit 130 for the electric motor 68 includes two switches S1 and S2a whose position is determined by the position of the valve member (20). Power is applied to terminals 56, 62 and 46 of the control circuit depending on the demand from room thermostat 26 and hot water thermostat 28. The applied power is fed to the motor by the switches S1 and S2a so that the valve is driven to the appropriate position to a blow heated water flow to the hot water cylinder, the central heating, or both. The thermostats 26, 28 also apply power when required to the pump 2 and boiler 4. It is stated that the control circuit 130 arrangement prevents the unwanted feed of power from terminal 56 to the pump 2 and boiler 4 when there is no demand from the thermostats. <IMAGE>