baber/WOPTO huggingface dataset:
Patent GB-2118456-A (GB)
Title: Method and device for freeing a trap filter of dust
Inventor: NILSSON DAN
IPC: B01D46/04
Filed: 1982-02-08
Abstract: Method and device for freeing a filter medium, which has a certain inherent stiffness and is comprised in a filter, of dust separated from air, which filter (2) at one end is connected to a supporting plane (1) and in its longitudinal direction is oriented substantially perpendicularly to the supporting plane (1). The cleaning of the filter cloth is effected in that a strocke is imparted to the supporting plane (1), whereby a shock wave is created which propagates downward along the filters. This results in that the filters are subjected to vibration in their longitudinal direction whereby the dust adhering to the filter medium loosens and drops down.
Patent GB-2121569-A (GB)
Title: System guaranteeing integrity of a gambling system
Inventor: KEANE MARTIN ANTHONY
IPC: G07F9/02
Filed: 1983-05-10
Abstract: Data and associated validation information stored in a nonsecure location are verified as to integrity by cryptograph techniques. Verification activates a gambling system to operate in a gambler-responsive mode, and non-verification activates an alarm mode. The system is used in postal metering, electronic mail, electronic funds transfer and other source data processing systems. The validation information is formed by deriving a first value from the data according to a first relationship, and then deriving the validation information from the first value by means of a nonpublic derivation having an inverse function. The validation word is then associated with the data and stored in the nonsecure portion. Verification is accomplished by deriving 430 a first value from the data by the first relationship, and deriving 450 a second value from the validation information by means of the inverse function. The first and second values are operatively related 450 to determine system integrity. All relationships are one way function, in a preferred embodiment. In a preferred embodiment, the first and inverse second relationships are public and the second relationship is secret. <IMAGE>
Patent GB-2121756-A (GB)
Title: Device for attaching straws to beverage cartons
Inventor: KAWAJIRI RYOICHI
IPC: B65B61/00
Filed: 1983-05-26
Abstract: In a device for attaching drinking straws (4) to beverage cartons (2), a belt (10) containing therein a number of straws (4) at constant spacing intervals is fed intermittently and cut transversely by a blade (61) to produce a series of succeeding sheaths (5) enclosing respective straws (4). Each sheath (5) thus produced is sucked against a straw holding head (8), transferred thereby to a position opposed to a carton (2) supported in a carton holder (1) and then urged against the carton 2 to be attached thereto by adhesive previously applied to the carton. The entire mechanism for the above operation may be mounted on an inclinable base plate to enable the sheath (5) to be attached obliquely to the carton. Alternatively the carton holder (1) may be adjustably inclined relative to the straw holding head (8) when the latter is in its attaching position. <IMAGE>
Patent GB-2146080-A (GB)
Title: Vehicle anti-skid braking systems
Inventor: FARR GLYN PHILLIP REGINALD
IPC: B60T8/42
Filed: 1983-09-02
Abstract: A modulator piston assembly (6) is of generally dumb-bell shape, consisting of a first modulator piston (7) and a second modulator piston (9) having an integral stem (10) carrying an isolation valve member (14) engageable with a seat (16) carried by the first piston (7). First, second and third modulator chambers (23, 24 and 41) respectively are bounded by the modulator piston assembly, such that on movement of the modulator piston assembly from its normal position the volumes of first and third chambers (23, 41) increase, and that of second chamber (24) decreases. A master cylinder (28) is connected permanently to the second chamber (24), and a wheel brake (25) to the first chamber (23), and a normally closed solenoid controlled dump valve (35, 36) is interposed between the master cylinder inlet (31) and the third chamber (41). On a skid signal the dump valve (35, 36) opens, and fluid flows from the second chamber (24) to the third chamber (41), isolation valve (14, 16) closes, and the first chamber (23) is expanded to relieve the wheel brake pressure. A pump piston (51) is arranged in association with one-way seals (42, 43) to pump fluid from the third chamber (41) back to the inlet of the dump valve (35, 36), and on cancellation of the skid signal thereby returns fluid from the third chamber (24). The pump piston on the Fig. 2 construction is remote from the modulator assembly and is connected thereto by only a single hydraulic line (56). <IMAGE>
Patent GB-2129059-A (GB)
Title: A wave energy device
Inventor: PLATTS MICHAEL JAMES
IPC: F03B13/18
Filed: 1983-10-07
Abstract: In the device a flexible membrane 26 of a pump chamber 22 is exposed to the waves and deflection of the membrane 26 in response to the waves is used to pump a working gas to and from a plenum chamber 20. A fluid-filled bag 42 is disposed along the edges of the pump chamber 22, to add shape to the pump chamber 22, to reduce dead areas therein and to support the membrane 26 so as to inhibit creasing or kinking of the membrane 26 during the compression stroke. The working gas drives a turbine 32 which, in turn, drives a generator 36. <IMAGE>
Patent GB-2131342-A (GB)
Title: Method and apparatus for extrusion processing of cellulose or fibre containing materials
Inventor: HUBER GORDON RAY
IPC: B29C48/395
Filed: 1983-11-23
Abstract: The extrusion apparatus for processing e.g. defibrating, the materials e.g., wood chips, crop residues, whole or ground soybeans, includes a transition screw section (52) designed to smooth out material flow through the extruder and allow creation of increased barrel pressure and temperature levels. The transition section includes first (62) and second (64) alternating flights, with the depth of the first flight being less than that of the second flight and preferably gradually increasing until it equals the second flight depth. The apparatus also advantageously includes a single flighted inlet screw section (50) and a double flighted compression screw section (54) respectively disposed on opposite sides of the transition section; in addition, the extruder has a pressure responsive adjustable die (78) so that the effective dimensions of the die opening can be varied during the extrusion operation in dependency upon the extrusion pressure sensed at location (84). Wood chips may be extruded to produced a defibrated wood product useful in the manufacture of fiber board. <IMAGE>
Patent GB-2133940-A (GB)
Title: AC-DC-AC converter
Inventor: OKAMOTO FUTSOSHI
IPC: H02M7/48
Filed: 1984-01-13
Abstract: The converter comprises a rectifier 3, a smoothing circuit 4 with inductor means 42 and a smoothing capacitor 41, and an inverter 5 having switching means 50, 51 for switching the input dc voltage from the rectifier to provide high frequency ac voltage output with a reduced ripple. The inductor means receives electromagnetic energy from the current therein when the switching means 50 is switched on and the electromagnetic energy is fed to the smoothing capacitor to charge the same when the switching means is switched off, the resulting voltage developed across the capacitor being applied to the inverter input. This enables the inductor means to be reduced to a smaller value while allowing it to retain a high power factor, and it can be readily incorporated in the converter without requiring any additional switching means and without undue increase in the component costs. <IMAGE>
Patent GB-2134641-A (GB)
Title: A solid fuel effect gas fire
Inventor: MOORE PETER DAVID
IPC: F24C3/00
Filed: 1984-01-23
Abstract: In a solid fuel effect gas fire of the "sand-burner" kind, at least one wall of a sand-containing tray 11 or 12 is used to define a perforated gas-supplying duct from which the gas escapes to percolate through the sand 14. The duct may conveniently be defined by perforating said one wall, fixing a manifold to it to form a substantially gas-tight enclosure around the perforations and providing the manifold with a gas inlet; or by fixing a perforated sheet to the inside of said one wall to form a substantially gas- tight tunnel with the wall, and providing the tunnel with a gas inlet. Preferably the perforations run substantially parallel with the tray base. The imitation fuel itself may advantageously rest on a grid above the sand, rather than sitting directly on the surface of the sand. <IMAGE>
Patent GB-2135777-A (GB)
Title: Sound responsive devices
Inventor: BRAZIER-JONES MARK WILLIAM
IPC: G01S3/807
Filed: 1984-02-16
Abstract: A head includes a pair of microphones F arranged binaurally, a loudspeaker L and a pair of light emitting diodes E mounted on a chassis J. The chassis is rotatably mounted on a base I by means of a motor D and gears B and C. The head also contains a computer which responds to the signals received from the microphones F to cause the motor D to rotate the head so that the diodes E face the sound. Responses to the sounds received are made from signals emitted from the diodes E and the loudspeaker L. Sounds recently received are memorised and incoming sounds are compared with sounds in the memory to control the responses of the head. <IMAGE>
Patent GB-2157433-A (GB)
Title: Rotary spirit level
Inventor: MORRIS RONALD ROBERT
IPC: G01C9/34
Filed: 1984-03-31
Abstract: A device for use in demonstrating horizontal, vertical, angles of inclination and in general the principles of surveying comprises a circular disc 1 which supports a spirit level 2 and mounted in a recess of a parallelelepipedic block 5 with two faces of the block 8,9 parallel to the plane of the disc 1. An angular scale 10 is associated with and centred on the axis of the disc at its central point of rotation and a sighting means 14 or 17 is angularly movable over the scale and an edge of the sighting means extends across a diameter of the scale and an is alignable with the longest axis of the spirit level. The sighting means 17 has outturned ends 23,24 for use in sighting distant objects. A sighting means such as a telescope or hollow tube 14 is also possible. <IMAGE>
Patent GB-2145282-A (GB)
Title: Humidity sensor
Inventor: PEDLEY DEREK GEORGE
IPC: G01N27/00
Filed: 1984-07-13
Abstract: A humidity sensor comprises an insulated gate field effect transistor having a layer (14) of poly vinyl alcohol (PVA) between a gate electrode (15) and a gate insulator (13). The gate electrode (15) is porous allowing ambient water vapour to be absorbed by the PVA which, in response, undergoes a change of bulk dielectric constant. This causes a change in gate capacitance of the transistor resulting in a detectable change of electrical conductivity in the drain source channel. The PVA may be deposited by spin coating and then subjected to heat treatment. …<IMAGE>…
Patent GB-2163231-A (GB)
Title: Jointing method
Inventor: LENIGHAN PETER
IPC: F16B5/07
Filed: 1984-08-15
Abstract: A method of connecting together two pieces of MDF (Medium Density Fibreboard), comprising the steps of forming a first piece of said MDF with one or more projections, forming the second piece of MDF with one or more recesses, said projections and recesses being complementary to each other, and engaging said projection(s) fully into said recess(es) so as to lock said pieces together. One piece of MDF may have a decorative surface applied thereto, eg a veneer, pre-painted or polished, for walls, skirting boards or architraves.
Patent GB-2151446-A (GB)
Title: Mower
Inventor: BARKER MALCOLM
IPC: A01D34/24
Filed: 1984-12-18
Abstract: A mower, especially intended for agricultural or horticultural use and of the kind having one or more discs (17, Fig. 1) mounted on skids (19) and provided with outwardly projecting cutting blades, the or each disc being rotatable about a vertical axis, is arranged in use to be connected at its front end to the rear of a tractor (11) whilst the rear end of the mower has ground-engaging support wheels (13) which are mounted on arms (14) which are pivotally connected at their front ends (15) to the frame (12) of the mower. Fluid-pressure actuable ram means 26 are provided for lifting the discs and skids clear of the ground when desired and further fluid-pressure actuable ram means 24 are connected between the ground-engaging wheels or associated arms and the frame in order to form a suspension system which, in operation of the mower, maintains the contact pressure between the skids and the ground substantially constant. The first-mentioned ram means 26 is connected via 27 to the tractor hydraulic system and the further ram means 24 is connected in use to a separate pressurised fluid circuit on the mower which includes a pump 31 and an adjustable pressure relief valve 34. <IMAGE>
Patent GB-2152369-A (GB)
Title: Hair treatment means
Inventor: FINN PAUL HOWARD
IPC: A45D19/02
Filed: 1985-01-07
Abstract: The invention provides a hair treatment device in the form of a sealed bag containing a hair towel which is impregnated with a means for removing hair grease or the bag containing a quantity of such substance, whereby the hair can be degreased using the towel and substance without the need for normal washing of the hair.
Patent GB-2174547-A (GB)
Title: Switch actuator
Inventor: MARRIOTT STEPHEN FRANK
IPC: H01H17/30
Filed: 1985-04-23
Abstract: A switch actuator permits small children to operate light switches which are beyond their normal physical reach. The actuator body 1 is releasably secured to the light switch 8, whereby an actuator shaft 2, which is contained within the actuator body, is held against the operating lever 16 of the light switch 8. Two pullcords 3,4 are wound around, and anchored to, the actuator shaft 2. Pulling the 'on' pullcord 3 causes the actuator shaft 2 to rotate through an arc and, by means of an integral cam 15 or similar device, depress the operating lever 16 of the light switch 8 until the 'on' position is attained. Similarly, pulling the 'off' pullcord 4 causes the actuator shaft 2 to rotate through an arc in the opposite direction and, by means of an integral cam 14 or similar device, depress the operating lever 16 of the switch 8 until the 'off' position is attained. The actuator shaft 2 has an operating lever 13 to enable the switch 8 to be operated without using the pullcords 3,4. <IMAGE>
Patent GB-2179961-A (GB)
Title: Electric iron
Inventor: MORECROFT MICHAEL JOHN
IPC: D06F75/28
Filed: 1985-09-17
Abstract: An electric iron 1 and base unit 2 are described in which an electrical connector 3 normally contained in the base unit 2 when the iron is used in a cordless mode is detachable therefrom and is attachable to the iron 1 whereby it may be used in a 'corded' mode. <IMAGE>
Patent GB-2183464-A (GB)
Title: Vehicle seat frame
Inventor: NIPPER STANLEY
IPC: B60N2/16
Filed: 1985-10-19
Abstract: A vehicle seat frame including a seat cushion frame 11 movably connected on each side to a support 24 by front and rear linkage connections 20, 22, at least the rear linkage connection being operable to vary the height of the seat cushion frame relative to said support, the rear linkage connection including a lever 60 pivotally connected at a first location 61 to the support and pivotally connected at a second location 62 to the frame, drive means drivingly connected to the lever for moving the lever about its pivotal connections to cause raising or lowering of the frame relative to said support. The lever may have gear teeth 68 in mesh with a train of gears 65 driven by a ratchet mechanism 84, 86, 87 via a clutch (81, fig. 3) which permits transmission of drive from the ratchet mechanism to the train of gears but prevents transmission of drive in the opposite direction. The front linkage 20 comprises first and second levers 26, 28 and a pawl 36 engageable with teeth 40 on the lever 28 to hold the front linkage in a desired position and disengageable therefrom to permit adjustment of the front linkage assembly. <IMAGE>
Patent GB-2168413-A (GB)
Title: Safety rail for ladder
Inventor: GOOD JOHN COSREVE
IPC: E06C1/39
Filed: 1985-12-11
Abstract: A ladder comprises a ladder portion having stiles and rungs, a platform 14 at the upper end of the ladder portion, support stays 20 hinged to the rear end of the platform, and a safety rail 24 also hinged to the rear end of the platform, and that invention is characterised in that the safety rail can occupy one of two positions, and when in its retracted position it projects forwardly of the platform thereby inhibiting use of the platform. <IMAGE>
Patent GB-2168820-A (GB)
Title: A circuit arrangement with a hall generator supplied by a control current
Inventor: QUITTKAT JORG
IPC: G01N27/83
Filed: 1985-12-13
Abstract: The invention provides a circuit arrangement with a Hall generator (10) which can be supplied by a control current, the Hall electrodes (12) (14) of which are each connected to an input of a differential amplifier (16). The control electrodes (20, 18) of the Hall generator (10) are each connected to a current source (42, 36) without being connected to a stable potential. One current source (42) supplies a control electrode (20) with a current (i1). The other current source (36) removes a current (i2) of equal magnitude from the other control electrode (18). The current sources (42, 36) may be supplied with control pulses from amplifier (54). <IMAGE>
Patent GB-2168991-A (GB)
Title: Thermally reversible encapsulating gel compound for filling cables
Inventor: HANDLIN JR DALE LEE
IPC: H01B3/44
Filed: 1985-12-20
Abstract: A fast forming, thermally reversible gel for filling cables at selective, specific gel temperatures comprises a styrene-ethylene-butene-styrene block copolymer and a naphthenic or paraffinic oil or solvent with an aromatic content up to 25% by weight.
Patent GB-2169737-A (GB)
Title: Gaming machines
Inventor: ORR BRIAN BENEDICT
IPC: A63F1/00
Filed: 1986-01-06
Abstract: A gaming machine offers a player a gamble on a number of alternatives, for example which of two cards displayed on a screen will be chosen. If the player is successful, the number of alternatives is increased or decreased normally by one, and the player can bet again, and so on, possibly up to a fixed limit of alternatives, as long as the player wins. This may be an extra feature of a machine, operational at random or when the player has been successful with a regular, main feature, such as achieving a winning hand on a poker machine.
Patent GB-2185664-A (GB)
Title: Teletext transmission systems
Inventor: RAY PRABAL
IPC: H04N7/167
Filed: 1986-01-17
Abstract: A teletext decoder for a teletext transmission system has a logic processor which is programmed to descramble teletext information containing scrambled text and encrypted cipher messages. The logic processor operates according to a decoding method to decrypt various cipher keys and to use the decrypted cipher keys to descramble pages of teletext text. The decoding method involves a one-way function which is the same as that used for scrambling/encryption at the transmission end of the teletext system. Each byte of a teletext message is descrambled by exclusive-ORing it with a respective decode byte that is derived from the one-way function. Figure 2 illustrates the one-way function used. <IMAGE>
Patent GB-2190170-A (GB)
Title: H.P. reciprocating pumps
Inventor: LEWIS II EDWIN
IPC: F16J7/00
Filed: 1986-04-12
Abstract: The H.P. reciprocating pump has a composite piston rod comprising a power end component (10), a fluid end component (11) and a connector (12) releasably connected to said end components. The connector (12) has a pair of tensioned links (15) extending therefrom and apertures (20) in the components and respective links co-operate for location of a locking pin therein. Pressure means (16-19) within the connector causes movement of the links against tension to permit coupling or uncoupling and for returning the links under tension to secure the components when coupled against release. The coupling means comprises a valve (22) provided in the body (13) of the connector (12) to inject or release pressure fluid into or out of a space (17) between two pistons (18) which form the links. <IMAGE>
Patent GB-2189190-A (GB)
Title: Branch pipe fitting for thermoplastic pipe
Inventor: KENWORTHY DAVID MICHAEL ANTHON
IPC: B29C31/00
Filed: 1986-04-16
Abstract: A preform for use in the manufacture of an electro-fusion saddle fitting has a spiral winding of resistance wire 3 carried on a thermoplastic mat 1 injection moulded over the winding and including integral projections 15 spaced apart along the wire and embracing the wire. The preform is made by winding the wire into a spiral groove 6 in a die plate 5, there being recesses 7 of enlarged cross- section spaced along the groove, and injection moulding over the die plate. <IMAGE>
Patent GB-2193057-A (GB)
Title: A power supply unit
Inventor: BARDOS PETER
IPC: H02M7/5375
Filed: 1986-06-30
Abstract: A power supply for powering lighting equipment comprises a mains powered inverter has an oscillator start circuit (R1, R2, C2) and a short circuit protection circuit (Z1, Th1, SCR1). The start circuit is provided with an inhibiting switch (TR10) to prevent operation of the start circuit in the presence of over heating or short circuit fault condition so as to provide closer control of the power supply than is normally obtained from the short circuit protection circuit. <IMAGE>
Patent GB-2185181-A (GB)
Title: Assembly for securing kettles and the like
Inventor: WILLIAMS KEVIN
IPC: A47J27/00
Filed: 1986-08-18
Abstract: An assembly for securing kettles etc to a work surface comprises a base plate 1 to support the base of the kettle has an upstanding collar 2 shaped to fit snugly around the base portion of an electric kettle 6 to prevent lateral movement. Collar 2 has a gap 3 for receiving the end 7 of an electrical lead 8, and means is provided for releasably securing the lower face of the base plate to the work surface. The assembly retains the kettle in position when the lead is pulled, thus alleviating the problem of inadvertent tipping over of the kettle. <IMAGE>
Patent GB-2350959-A (GB)
Title: Automatic target detection system
Inventor: ARCHDALE A
IPC: G01S13/524
Filed: 1986-10-09
Abstract: The invention relates to millimetric waveband continuously scanning radars, particularly air to ground surveillance radars and provides a radar receiver with and a method of signal processing to give the radar an automatic vehicle, for example tank, discrimination capability. The signal processing apparatus and method includes three stages of discrimination, namely a first stage for selecting only return signals returned from a ground target area of predetermined size and range from the system, a second discrimination stage for providing signals indicative of moving or static targets of a predetermined type such as tanks and a third discrimination stage responsive only to groups of more than a certain number of targets occupying no more than a certain area on the ground. The signals produced by the three stage discrimination signal processor or signal processing method are used to initiate appropriate attack procedures or select appropriate weapon deployment patterns.