baber/WOPTO huggingface dataset:
Patent GB-2299850-A (GB)
Title: Method and device for remotely actuating mines
Inventor: DITTKRIST ANDREA
IPC: F42C17/04
Filed: 1988-07-05
Abstract: In a programming phase, particular command and acknowledgement bit patterns are agreed via a monitoring- and interference-proof infrared channel with a mine 10 - 10 IV or a group of mines by means of a handset 18. In a command phase, the mines are armed or disarmed via a radio-frequency channel which can be monitored, during which process, however, only commands and acknowledgements previously agreed in the programming phase are accepted. For enciphering and deciphering a command transmitted from an operating station (10, Fig 6) to a mine station (30, Fig 6) and of an acknowledgement transmitted in the reverse direction, the command bit patterns and acknowledgement bit patterns are in each case logically combined with mask bit patterns in a mask bit memory (14, 34) by means of exclusive OR gates (18, 20; 44, 46). The mine station (30) in each case keeps available two adjacently located mask bit patterns for the logical operation in order to be able to recognize the transmitted command in the case of an interference in the back channel. The mask bit patterns in the mask memories (14, 34) of the operating station (10) and of the mine station (30) are incremented upon transmission and successful reception of command data.
Patent GB-2212571-A (GB)
Title: Friction brakes
Inventor: SCHMITT OTTO
IPC: F16D65/092
Filed: 1988-11-15
Abstract: In a brake eg a disc brake for road, rail or aircraft vehicles the rotating part (2) of the brake (1) eg a disc brake carries a friction layer (3,4) of plastic-bonded organic friction material, and the stationary part (5,6) eg the pads has a friction layer of ceramic material. With this arrangement the constructional element under highest load in the braking system, i.e. the lining of the brake shoe, is considerably relieved as 10 the thermal and mechanical stress to which it is subjected. A drum brake arrangement is also described. …<IMAGE>…
Patent GB-2225473-A (GB)
Title: Lc displays
Inventor: BIRCH MARTIN JOHN
IPC: G09G3/36
Filed: 1988-11-23
Abstract: A ferroelectric liquid crystal cell matrix address scheme that uses bipolar strobe pulses (20) to co-operate with bipolar data pulses (21,22) in a way that it can switch pixels into different states in a single refreshing not preceded by page blanking.
Patent GB-2213634-A (GB)
Title: Photocathode structures
Inventor: HOWORTH JONATHON ROSS
IPC: H01J1/34
Filed: 1988-11-29
Abstract: Modern image intensifiers employing transmission-mode photocathodes of the III-V semiconductor type do not always work effectively particularly at longer wavelengths. Moreover, they suffer from problems associated with impurities diffusing out of the glass substrate, and the propagation of crystal dislocations from the glass/semiconductor interface to the photocathode. Viable devices, with longer wavelength sensitivity can be made from other III-V materials, and dislocations and/or impurities in the glass substrate can be more effectively trapped therein, by the relatively simple expedient of using not single layer single composition etch stop and window layers but instead laminar layers - that is to say, layers which are themselves layered, to form a "super lattice" structure - wherein alternate epitaxially grown laminae within a layer have different III-V material compositions. The laminae may be of, for example Al As alternating with Ga As or with In Ga As, or Al Ga As alternating with In Ga As. The laminae may be of equal or different thicknesses, e.g. successive laminae of one material may progressively increase in thickness through the layer as the alternate laminae of the other material decrease in thickness. The window layer may have anti-reflection properties.
Patent GB-2232129-A (GB)
Title: Wheel - trims and a method of moulding articles
Inventor: JEFFERSON DANIEL
IPC: B60B7/08
Filed: 1989-05-26
Abstract: A wheel trim 4 for a wheel 1 which carries a tyre 2 comprises a circular, relatively stiff central region 14 of substantially the same diameter as the wheel 1 to which the trim is to be attached, and an annular, relatively flexible outer region 15 surrounding the central region 14 and adapted to extend in use beyond the outer peripheral edge of the wheel 1 to overlie the side-wall 11 of the tyre 12. The trim 4 may have vents for air flow. A method of injection moulding a wheel-trim, or any other article, having a relatively stiff region and a relatively flexible region is also disclosed. Attachment means 16 may be provided on the central region 14 to secure the trim to the wheel or wheel-mounting bolts or hooks (21) and a lip (19), Fig 3, may be provided to secure the trim to the wheel. <IMAGE>
Patent GB-2228689-A (GB)
Title: Screen unit
Inventor: TAYLOR NORMAN JOHN
IPC: E03B11/00
Filed: 1989-07-12
Abstract: A screen unit designed to exclude insects from a water tank, which may be fitted either in the air vent or the overflow pipe, comprises a generally cylindrical housing provided with an inlet (8), an outlet (10) and a removable cover (12) which enables a filter (16) to be placed therein. As shown the filter is urged on to flange (14) by a spring (18). In other constructions the inlet and outlet are axially aligned, and the cover is in the side of the housing. The filter mesh is from 0.2 to 0.8 mms. <IMAGE>
Patent GB-2222651-A (GB)
Title: Cam mechanism
Inventor: POLLICH GERHARD
IPC: F16H53/06
Filed: 1989-08-10
Abstract: In a cam mechanism including a main cam 1 and an auxiliary cam 2 and cam-controlled levers 6, 7 being engaged under spring force via rolls 4, 5 rolling on sac cams to counteract the influence of the inertia forces a corrected outline 2a of the auxiliary cam 2 is provided. …<IMAGE>…
Patent GB-2237277-A (GB)
Title: Thixotropic binder system
Inventor: NICKS PETER FRANCIS
IPC: C08G18/32
Filed: 1989-10-26
Abstract: A film-forming thixotropic binder system for imparting sag resistance to coating compositions comprising the product obtained by reacting an isocyanate preferably having a molecular weight of at least 400 and comprising more than two isocyanate groups (preferably an isocyanurate trimer obtained from di-isocyanates) with a polyamine and optionally a monoamine in the presence of a film-forming carboxylic acid copolymer having an acid value of at least 25 mg KOH/g copolymer. The binder composition may be neutralised by alkali to produce a salt soluble in an aqueous coating composition. Also detailed processes for making the binder system.
Patent GB-2237580-A (GB)
Title: A method for plating a hole and adjacent surface portion of a printed circuit board
Inventor: LESTER RONALD FREDERICK
IPC: H05K3/22
Filed: 1989-11-03
Abstract: A method of selectively plating a hole in a printed circuit board so as to form a solder pad at the same time as plating a hole in the board comprises placing a suitably shaped member with an aperture in it about the hole such that the aperture of the member defines the region that is to be plated on the surface of the board so as to correctly orientate plating apparatus eg. the electroplating apparatus of GB 2214931. A seeding layer may be first deposited, the member removed and the delivery head of the plating apparatus applied such that it seals about the seeded layer, and the seeded layer then electroplated.
Patent GB-2241838-A (GB)
Title: Plug with flanges to store cable
Inventor: BACKHOUSE GRAHAM
IPC: H01R13/72
Filed: 1989-11-13
Abstract: A plug (1) of having contact pins (2, 3, 4), connected to an electrical cable (not shown), comprises external flanges (5, 6, 7, 8), perpendicular to the pins, between which the cable can be wound around the plug. A catch may be provided for releasably holding the wound cable in place. The catch is hinged on flange (5) and is a snap fit on flange (6). The flanges need not be solid and may be formed of bars. <IMAGE>
Patent GB-2238134-A (GB)
Title: Fabric tester
Inventor: ALLAN JULIAN RICHARD
IPC: G01N15/08
Filed: 1989-11-13
Abstract: In apparatus for testing the permeability of fabrics on impact with water, being especially useful for testing ventile materials used in the manufacture of immersion suits, a test piece of fabric 3 is held in a clamping device 1, 4 which is releasably attachable to a pipe 10. Radial grooves 6 in the impact face of clamping ring 4 provide an escape path for air when the fabric impacts water. In use, the pipe is allowed to fall vertically into a water tank, being guided along a track by rollers. Subsequently, the fabric-carrying clamping device 1 can be removed and inspected for the presence of water droplets e.g. by weighing, and the fabric can be visually inspected for damage. <IMAGE>
Patent GB-2227364-A (GB)
Title: Pendant switch
Inventor: BITSCH HARALD
IPC: B66C13/56
Filed: 1989-12-19
Abstract: A pendant switch for controlling lifting gear has snap acting switching elements 14 disposed in a housing 1, 2 below push-buttons 12 for operating the elements, a handle 3 depending from the housing 1, 2 and the switch being designed and shaped to enable an operator to grip the housing effectively with an index finger in a groove 4, and operate the buttons 12 with a thumb, leaving the remaining fingers free for manipulating a load (Figs. 5-7). Recessing of the pushbuttons between beads (9) (Fig. 2) inhibits inadvertent operation. The handle may have a backwardly extending safety projection 5 for the little finger, and a strain relief tube 17 is screwed over connecting sleeve 8 surrounding electric cables 16. <IMAGE>
Patent GB-2236014-A (GB)
Title: Inspecting device for a cathode ray tube
Inventor: LEE KYO-CHEOL
IPC: H01J9/42
Filed: 1990-08-29
Abstract: A characteristics inspecting device for a cathode ray tube eg. for electrically inspecting the insulation state between different electron gun electrodes, comprises a housing 1 in which inspection components, eg. circuits, are located and which includes a pair of sliders 4 carrying a rotatably mounted frame 6 on which the CRT is mounted in a first orientation, the arrangement being such that the CRT in the frame may be rotated to a second orientation and slid into and out of the housing 1 to facilitate the inspection. Connection between the inspection components and the CRT may be made automatically as the tube is slid into the housing. As shown, at least one pair of sliders 4 disposed in the same piano on opposite side walls of the space 2 of housing 1, perform reciprocating movements over a certain distance guided by rollers 5 and each of the pair of the sliders 4, 4 has a vertical supporting rod 7, 7 coupled to the frame 6 for installing the CRT in a rotatable manner. The handling of cathode ray tubes may be made easier, preventing damage to cathode ray tubes and facilities and alleviating the exhaustion of the worker. <IMAGE>
Patent GB-2237002-A (GB)
Title: Lifting tool
Inventor: KINZETT IAN ROBERT
IPC: B66C1/32
Filed: 1990-10-17
Abstract: A lifting tool has arms each comprising first (12, 12') and second (14, 14') elongate metal parts linked at their ends and pivotally interconnected (20) partway along the lengths of said first parts. The free end of each first part includes a handle and support means (40) are provided on each arm in the form of a flat plate extending toward the other arm and a wall part extending normally of an edge of said plate to lie in abutment with and be attached to the free end of each second part. The edge of each flat plate spaced from the second part of the associated arm has elongate extensions formed spaced apart thereon in the plane of the flat plate member. The second arm parts are bifurcated over at least a part of their length, and the support means of each arm is attached to the free ends of both sections of the bifurcated second arm part of the arm. The handles are linked by a flexible member (54) (e.g. a rope or chain) by means of which the tool and its load may be lifted. <IMAGE>
Patent GB-2244607-A (GB)
Title: Flying lead on switching device
Inventor: GRIMM MICHAEL
IPC: H01H50/14
Filed: 1990-12-03
Abstract: A relay has a housing (1) and a coil (6). The coil connections are formed by IDC contacts provided in a connector (24). At least one of the coil connections is electrically connected to a socket strip (47), by a flexible ribbon lead (2). The socket strip (47) can be plugged into a counter part on a printed circuit board, whereby the switching device can be easily and conveniently connected thereto. <IMAGE>
Patent GB-2241716-A (GB)
Title: A composite non-woven fabric for one-piece shoe counters
Inventor: BURGESS KENNETH WADE
IPC: D04H1/64
Filed: 1991-03-08
Abstract: A non-woven fabric for making shoe counters is produced by dispersing a thermoplastic resin throughout the interstitial space of a non-woven fabric having two fabric surfaces, the first of which has a velvety or felt texture and the second of which has a lightly fused surface, and heating sad fabric in a manner which impregnates said fabric to form a non-woven composite with one velvety or felt surface substantially free of thermoplastic resin and without buffing. Preferably a carded crosslapped polypropylene web is needled with the needle up stroke reduced to produce the velvety surface, fused on the other surface, impregnated with an acrylate or styrene homopolymer or copolymer squeezed to remove excess resin then heated to cause the resin to flow. The fused side is coated with ethylene vinyl acetate hot melt adhesive to allow the counter to be stuck to the rear of the shoe. <IMAGE>
Patent GB-2255926-A (GB)
Title: Blade holder.
Inventor: HOSKIN WILLIAM JOHN
IPC: B26B5/00
Filed: 1991-05-01
Abstract: The surgical blade holder (4) has a pair of arms (6, 8) pivotally interconnected by a pivot (10) and each terminating in a finger (6B, 8B). One finger (8B) has a pair of locating pins (12, 14) for locating a slotted blade (2) on its surface. By closing the two fingers in a scissor-like action, the blade (2) becomes trapped between the two fingers (6B, 8B). A cam (26) acts on the two arms (8, 6) adjacent their distal ends to move them apart in a direction normal to the direction of angular displacement as the fingers move into superimposition with one another. The facing surfaces are so profiled that as they bend towards one another in response to the displacement of the distal ends of the arms away form one another, they cause the blade to bend out of its plane so as to secure a better gripping action on the blade.
Patent GB-2245131-A (GB)
Title: Fish bait
Inventor: HOLT RAYMOND JOHN
IPC: A01K97/04
Filed: 1991-06-10
Abstract: There is disclosed a method of making a fish bait having a density substantially equal to the water in which it will be used, comprising the steps sequentially of swelling an edible particulate honeycomb-like compound comprising at least 55% by weight of carbohydrate, in a first hypotonic liquid, drying said compound, reimmersing the thus dried compound in a second hypotonic liquid, optionally drying the thereby again swollen compound, and submerging the thus optionally dried compound in a third liquid, whereby said third liquid substantially replaces air or said hypotonic liquids in the honeycomb spaces in said compound.
Patent GB-2257841-A (GB)
Title: Multi-port microwave coupler
Inventor: TONDRYK WIESLAW JAN
IPC: H01Q3/40
Filed: 1991-07-18
Abstract: A coupier has six input ports In 1, In 2, In 3, In 4, In 5 and In 6 and six output ports Out 1, Out 2, Out 3, Out 4, Out 5 and Out 6 and has nine 2 x 2 90 DEG  hybrid couplers which are arranged as three sets, a first set A, B and C, a second set D, E and F and a third set G, H and I. A first group of transmission lines 11, 12, 13, 14, 15 and 16 interconnect the first and second sets of hybrid couplers, and a second group of transmission lines 21, 22, 23, 24, 25 and 26 interconnect the second and third sets of hybrid couplers. The first and third sets of couplers each give a 3dB power reduction, but the second set gives a 1: 2 power split between their outputs. Three 90 DEG phase shift devices X, Y and Z correct the phase of the signals in the transmission lines 21, 25 and 24 respectively. When equal amplitude signals are applied to all of the input ports, the combined signal can be directed to any one of the output ports by appropriately selecting the respective phases of the input signals. The first and second groups of transmission lines can be arranged as respective transmission rings (Fig 11) so that all cross-overs in the transmission lines are avoided thereby providing a planar realisation of a 6 x 6 multi-port microwave coupler. A further arrangement (Fig 12) is described to avoid cross-overs. The invention is of application to higher order n x n multi-port microwave couplers where n = 2<p> x 2<q> with both p and q as whole numbers. <IMAGE>
Patent GB-2248758-A (GB)
Title: Herbicide spreader
Inventor: KIRK EDWARD VICTOR
IPC: A01C15/04
Filed: 1991-09-18
Abstract: A spreader for granular herbicide comprises a hopper and herbicide transport assembly (2) for close-mounting behind an agricultural tractor (1). Flexible conduits (7) deliver herbicide from the transport assembly (2) to an array of distribution heads (8), mounted on a roller unit (3) that is pulled behind the tractor. A two-way valve is operative to deliver the herbicide to one or other, but not both at the same time, of the two laterally outermost distribution heads (8), so that the resulting distribution pattern of herbicide is an even spread of substantially the same width as the roller unit, but offset to the right or left of the roller unit so as to fall over previously rolled ground. <IMAGE>
Patent GB-2248657-A (GB)
Title: A heavy oil fuel injection pump for fuel-injection internal combustion engines
Inventor: BODZAK STANISLAW
IPC: F02M59/44
Filed: 1991-09-27
Abstract: A heavy oil fuel injection pump having a lubrication oil groove (6, 11) in the pump piston (2) and/or on the inside wall of the pump piston bushing (1). The lubricating oil is supplied through a bore (7) to one side of the lubrication oil groove (6) and is discharged from the side opposite the supply side, in a manner which is controlled by the pump piston. In the embodiment shown oil leaves the groove (6) when the groove (11) is in alignment, a groove (10) providing a discharge flow path. The lubricating oil thus flows in directed flow through the Iubrication oil groove (6) and leaves it in a pulsed manner. The flow-through cross section of the lubrication oil groove (8) is preferably a maximum of 100% and in particular a maximum of 50%, of the cross section of the supply bore (7). The dwell time of the lubricating oil in the lubrication oil groove is shortened, and deposits are thus reduced or avoided. Several other embodiments are described. <IMAGE>
Patent GB-2251993-A (GB)
Title: Discharge lamp shock prevention circuit
Inventor: TAKAHASHI KEIJI
IPC: H05B41/285
Filed: 1991-12-24
Abstract: In an unbalanced discharge lamp HF ballast circuit, disconnection of lamp terminal 211 from low potential terminal 231 is detected by sensing means 29. causing control means 31 to decrease or stop the HF voltage supplied by circuit 23 to terminal 233. This reduction, which prevents shock hazard at exposed lamp terminal 211, is achieved by alteration of the drive frequency in the resonant lamp circuit. Only one disoonnection sensor is needed. Excess voltage at terminal 233, due e.g. to a defective lamp, is detected also 33, and causes control means 31 to decrease the lamp potential. There is a soft-start circuit, and starting is inhibited by absence of a lamp. <IMAGE>
Patent GB-2266032-A (GB)
Title: Computer communications bus and controller.
Inventor: BOAL JOHN HILL
IPC: H04L29/06
Filed: 1992-03-09
Abstract: A packet handler (11) controls communications between a processor bus (10) and a packet bus comprising 16 information lines INFO-15, a single control line NOT-STROBE and a clock line GLOCK. The information lines can carry not only data DATAO-15 but also arbitration signals ARBO to ARB++, PRIO-7. To permit this multiplexed operation and tight control over the bus states, the states follow precisely defined sequences demarcated by state change codes. A state change is signalled by NOT-STROBE going low with simultaneous placement of a state change code DELIMO-3 on the lines INFO-3. Moreover the state change strobe is validated by a common qualifier QUALIFO-11 on information lines INFO-15. The packet handler (11) and bust (10) are particularly suited to communications using packets comprising typically header, header reply, data and data reply frames. The transmitter sends the header and awaits an acknowledgement header replay generated by the receiver packet handler with little or no host intervention. According to the reply (NAK, WAK, ACK) the transmitter can abort the packet, wait, or immediately send any data frame portion of the packet. A further reply may be sent confirming integrity of the received packet. <IMAGE>
Patent GB-2255362-A (GB)
Title: Fiber optic remote control system
Inventor: LEBEGUE MAURICE K
IPC: B65H51/22
Filed: 1992-04-27
Abstract: A mining machine 10 is controlled by a fiber optic controlled remote control system that includes one or more fiber optic cables 28 that extend from a remote control station 30 through a hose 22 supplying water to the mining machine. The fiber optic cables exit the water hose for connection to electrically operated equipment onboard the mining machine. Connectors 32 having sealing glands with apertures therethrough allow for insertion of the cables into the water hose and exiting of the cables from the hose at the mining machine while preventing the escape of water from the hose at the points of insertion and exiting. <IMAGE>
Patent GB-2256049-A (GB)
Title: Measurement of flocculation layer depth and density
Inventor: PINKARD DAVID PETER
IPC: G01N29/02
Filed: 1992-05-21
Abstract: Sonar echo ranging is used to determine flocculation layer 13 particle density in e.g. a water clarifier. The amount of reflected signal can be used to determine the particle density, and taking account of the reflection time, the respective densities of the layer and the supernatant liquid layer 16. Depth can be determined from the reflection times. Logarithmic and averaging techniques may be used. The flocculation layer is typically of low density. <IMAGE>
Patent GB-2272431-A (GB)
Title: Inhibition of oxygen corrosion in aqueous systems
Inventor: GREAVES BRIAN
IPC: C23F11/10
Filed: 1992-08-17
Abstract: A method of treating an aqueous system is described which comprises incorporating in the system a hydroxylamine derivative of the general formula: <CHEM> wherein each of R1, R2 and R3 which may be the same or different represents hydrogen, alkyl of 1 to 8 carbon atoms or aryl or a water soluble salt thereof or a precursor thereof, and a tannin in a weight ratio of at least 2:1. This is particularly useful for boiler water systems. <IMAGE>
Patent GB-2259763-A (GB)
Title: A fire alarm system
Inventor: NAGASHIMA TETSUYA
IPC: G08B17/107
Filed: 1992-09-11
Abstract: A fire alarm system in which the threshold for judging the presence of a fire is changed according to the type of smoke. There is a correlation for each smoke type between the scattering angle  theta 1 ...  theta 4 formed by the optical axes of a light emitting means 108 and light receiving means 110, 12, 114, 116 and the outputs of the light receiving means. Smoke type is determined by comparing the light detector outputs with characteristic data for each smoke type hold in a storage means 120. Smoke type may alternatively be recognised by the degree of light polarisation that it causes, and alarm thresholds changed accordingly (figures 6 to 9). <IMAGE>