baber/WOPTO huggingface dataset:
Patent GB-2154066-A (GB)
Title: Solenoid actuator with linear force: stroke characteristic to reduce noise
Inventor: PARK JOHN GOLDIE
IPC: H01F7/13
Filed: 1985-01-11
Abstract: A solenoid having reduced noise characteristics includes an armature assembly 11 movable through a stroke length 13 with respect to a magnet assembly 15. The armature assembly includes a core section 17 formed of a magnetic material and having a first length. The magnet assembly is electrically energizable for providing a magnetic flux and has a flux path of a second length which is greater than the first length of the core section. The magnet assembly thereby exerts an attracting force upon the core section which has a magnitude increasing generally linearly over the stoke length. The solenoid may incorporate an exteriorly mounted stop plate 57 and stop disc 69. The stop disc is adapted to have a resilient facing member 95 for abutting the stop plate when the armature assembly is in the attracted position resulting from energization of the magnet assembly. <IMAGE>
Patent GB-2158372-A (GB)
Title: Improved outlet for cyclone separators
Inventor: CARROLL NOEL
IPC: B04C5/081
Filed: 1984-08-29
Abstract: A cyclone separator (10) having an axially extending separating chamber (25) with successively adjacently positioned portions (12, 14, 16) of progressively decreasing diameters and feed pipes (26, 28) for tangential inlet of liquid mixture to be separated to the separating chamber at its larger diameter end. The separating chamber (25) has an overflow outlet pipe (34) at its larger diameter end and an underflow outlet (23) at its smaller diameter end. The overflow outlet has a diameter do, adjacent the separating chamber, in the range 0.0035 <= do/d1 < 1 where d1 is the diameter of the largest diameter portion of the separating chamber. The liquid to be separated is admixed, in one embodiment of the invention, with an emulsion breaker to facilitate separation of liquid components of mixture being separated.
Patent GB-2159448-A (GB)
Title: A method for re-use of copper electrode welding wire by a drawing process
Inventor: WEIL WOLFGANG HERMANN
IPC: B23K11/30
Filed: 1985-04-24
Abstract: The copper wires employed for electrical resistance seam welding of tinned sheet metal with the help of wire electrodes until now had to be taken back to the smelter as old metal after a few applications. The additional operating costs associated with this were until now unavoidable for long seam resistance welding of tinned sheet metal since multiple uses or applications of the copper wire for resistance seam welding have proven to be impossible in spite of years of research. The problem of these additional operating costs can be solved such that new copper wires with a reduced diameter can be directly drawn from the copper wire employed as wire electrodes for resistance seam welding after their use in welding. These wires then, for example, can be used as signal conductors or as windings. The properties of these wires are totally in accord with copper wires that are directly drawn from new copper. By this process, the additional operating costs mentioned above are substantially reduced and in many cases are even totally eliminated.
Patent GB-2159944-A (GB)
Title: Optical sensor
Inventor: BECKMANN FRIEDRICH-KARL
IPC: G01L1/24
Filed: 1985-06-03
Abstract: An optical sensor comprises a polarization filter (4), which extracts polarized light (16) from the light (3) issuing from a light emitter (1,2), an electrically switchable optical 90 DEG  rotator (5), a transparent body (6) which changes the state of polarization of the polarized light depending on a physical quantity to be sensed, in particular a pressure (17) exerted on the body (6), and an analyzer (8), which extracts a linearly polarized component (10) with an intensity depending upon said physical quantity which component is coupled into a receiving fibre (11) by a lens (9). The physical quantity is computed from the quotient of the switched and unswitched light amplitudes. The optical sensor may be suitable for use in spaces with an explosion hazard, if the single wavelength light energy is used both to sense a physical quantity and to power the sensor circuitry. The power is derived by detectors 12, 13 from light directed thereto by polariser 4 and analyser 8. <IMAGE>
Patent GB-2161086-A (GB)
Title: Gymnastic bar and connecting devices
Inventor: BARRETT PHILIP CHARLES
IPC: A63B1/00
Filed: 1985-07-04
Abstract: A bar or pole 11 has a connecting device 10 projecting from each end. Each device comprises a plate 12 having a pin 16 which locates in a hole in a piece of apparatus 14 (to which the pole 11 is to be secured), a flap 8 hinged and juxtaposed with the plate 12, and a thrust pad 20 mounted on a thumb screw 9 which screws in and out of a pivotally mounted long nut 19. The thrust pad 20 may be brought into contact with the flap 8 whereby tightening of the screw 9 causes the end of the pole 11 to be firmly secured to the piece of apparatus. <IMAGE>
Patent GB-2178970-A (GB)
Title: Doll and rocking cradle toy
Inventor: WONG CHACK TONG
IPC: A63H3/52
Filed: 1985-07-30
Abstract: A base 3 carries a rocking cradle 2 linked to one arm 6 of a doll 1, the upper hollow part 5 of which is universally mounted on the stationery lower part 4. Thus when cradle 2 is rocked by musical-box drive off take members 19, 20 acting through links to oscillate shaft 28, the doll upper portion 5 is realistically rocked, twisted and/or bowed relative to lower portion 4. A drawer carries a projection 16 which interacts with a rotor 14 to control starting and stopping of the drive. <IMAGE>
Patent GB-2179576-A (GB)
Title: Formation of coating by electrical means
Inventor: TASHKOV TASHKO ILIEV
IPC: C23C26/00
Filed: 1985-08-30
Abstract: There is disclosed method and apparatus for the formation of a coating on a workpiece (24) by electrical means and using a multi-disc electrode assembly (1). The workpiece (24) is mounted on a table (23), and the electrode assembly (1) is rotated by a horizontal drive shaft (2) as it is advanced over the surface of the workpiece which is to be coated. Intermittent contact takes place between the discs (1) and the workpiece surface by providing an arrangement for imparting vibration to the table (23), this comprising an eccentric (26) driven by a motor (28) via a cogged belt drive (27). <IMAGE>
Patent GB-2171424-A (GB)
Title: Needle and/or clip chains
Inventor: CRAMER HANS
IPC: D06C3/02
Filed: 1985-12-02
Abstract: A needle and/or clip chain comprising carrying or supporting parts (5) which ace fastened releasably to chain links, in which respect one part (4) of the supporting part (5) is provided with a projection (6), on which projection (6) a needle plate (8) and a swingable clip (10) are arranged. The projection (6) of the part (4) is provided with an opening (11), through which a depressor (13) engages, which depressor (13) is swingable about an axis (12) which is arranged underneath the plane of the needle plate (8). In this way the depressor requires an extremely slight additional space requirement and accomplishes its swivel movement within a region which does not exceed the height of the supporting part (5). <IMAGE>
Patent GB-2170101-A (GB)
Title: Furniture
Inventor: ARNOLD ALAN RALPH
IPC: A47B17/02
Filed: 1986-01-22
Abstract: A desk or cabinet 2 having a working surface 8 and including a storage or other unit 12 which is movable up and down relative to said working surface 8 and which, in the down position, has a surface 8B lying in the same horizontal plane as and forming a part of said working surface. The unit, located in a housing carried by the desk or cabinet is movable by hydraulic, pneumatic, mechanical or electrical - or a combination thereof - means. <IMAGE>
Patent GB-2190710-A (GB)
Title: Rotors for wind driven machines
Inventor: SUMMERS DAVID CHARLES
IPC: F03D1/02
Filed: 1986-05-20
Abstract: A rotor assembly for use in a wind driven machine comprises a first rotor (16) having a first set of blades (18) mounted on a first rotor shaft (12); a second rotor (22) having a second set of blades (26) mounted on a second rotor shaft (28) which is coaxial with the first rotor shaft (12). The second rotor (22) is mounted to be movable with respect to the first rotor (16) along a predetermined relative path between a first position in which each blade (26) of the second rotor (22) is displaced with respect to a corresponding blade (18) of the first rotor (16) and a second position in which each blade (26) of the second rotor (22) is substantially less displaced with respect to a corresponding blade (16) of the first rotor (14) the assembly also includes biasing means for urging the rotors (16 and 22) to the first relative position. <IMAGE>
Patent GB-2176370-A (GB)
Title: Loudspeaker, preferably sound column or horn loudspeaker
Inventor: BALOGH GEZA
IPC: H04R1/02
Filed: 1986-05-29
Abstract: The box of the loudspeaker consists of one or more parts which form a cavity or a horn and are made of at least two layers. Both layers are of the same synthetic two-component foam material. The inner layer (2) is softer, more elastic, the outer layer (1) is harder and stiffer. The two layers are produced in one single phase of work: after having cast the first layer, prior to complete hardening the second layer is cast directly on the first. The factor of sound absorption of the inner layer is at least 0.6, while the factor of absorption of the outer layer is 0.2 at most. The cavity is either closed or it is provided with openings leading to the atmosphere. The openings are either uncovered or they are covered with a material serving as acoustic impedance. Drivers (7), transformers (8) are fixed by means of the undercut lugs (5) formed in the inner layer (2). <IMAGE>
Patent GB-2178476-A (GB)
Title: Lock with controllable clutch
Inventor: HERRIOTT LESLIE VICTOR
IPC: E05B17/04
Filed: 1986-09-05
Abstract: A lock includes a clutch (140, 141) for transmitting drive between a key-receiving barrel 115 and a driven element 118. Setting of the clutch is controlled by a device 124 which compares with stored information information read from a key, when the key is introduced into the barrel. <IMAGE>
Patent GB-2197498-A (GB)
Title: Catoptric zoom optical device
Inventor: PINSON GEORGE T
IPC: G02B17/06
Filed: 1987-06-24
Abstract: A catoptric zoom optical device comprising a plurality of axially-spaced reflectors 10, 18 disposed in a set for coaxially receiving and reflecting energy from an object 16 in the ultraviolet through infrared spectrum to generate a real image 20 of the object and support and drive apparatus for selectively varying the effective focal length of the reflector set to magnify the image and for selectively varying the axial distance between the reflector set and a detector of the image for focusing the image on the detector. <IMAGE>
Patent GB-2206729-A (GB)
Title: Integrated circuit multi-level interconnect system
Inventor: PRITCHARD ALAN PETER
IPC: H01L23/522
Filed: 1987-07-01
Abstract: A method of fabricating multi-level interconnect systems comprising metal contact portions (42, 10) with polyimide insulating layers (12) sandwiched therebetween involving spinning a polyimide filling layer over apertures formed in the polyimide insulating layer so that polyimide fillets (40) accumulate in any cracks in the bases of the apertures before metal contact portion (42) is provided. <IMAGE>
Patent GB-2206294-A (GB)
Title: Modular air filter
Inventor: IGELBUESCHER HEINRICH
IPC: E21F5/20
Filed: 1987-07-02
Abstract: A filter for extracting dust from air in a mine or tunnel comprises housing parts 7 to 10 and ends 12, 13 which allow a filter of any desired air flow capacity to be built up as required. The housing parts comprise channels 15 and 14 for dirty and filtered air respectively, located side by side at the top of the filter. Channels 15 are open downwards into chambers enclosing removable filter bags, whose mouths open into spaces leading to channels 14. A scraper (2) removes dust from the floor of the filter to an outlet, from which it is drawn by a stream of air and water through an injector and then fed into a cyclone to produce wet dust which is easily transported. <IMAGE>
Patent GB-2207537-A (GB)
Title: Electronic access systems
Inventor: MUDFORD NEIL
IPC: G07C1/20
Filed: 1987-07-30
Abstract: Guard patrol clocks with individual coded identities are used to gain access to buildings or parts of buildings via electronic intelligent keypoints 20 which record the identity of each clock inserted and which allow access only to authorised clocks, in which the identity of each accessed keypoint is stored within the guard clock regardless of whether the guard clock identity is acceptable or not at the particular keypoint. <IMAGE>
Patent GB-2201241-A (GB)
Title: Analytical test strip
Inventor: HAMMOND JOHN MICHAEL
IPC: G01N33/52
Filed: 1987-11-23
Abstract: An analytical test strip has a flexible blister (12) thermoformed in a sheet plastics member (22), and a diaphragm (34) which closes the blister to create a reservoir for holding a reagent and/or carrier liquid (32). The sheet plastics member (22) is further formed with one or two spikes (28) the or each of which is disposed within the blister and extends in a reentrant manner towards the diaphragm where it terminates at a point. For use of the dispenser the blister is pinched by finger pressure applied by the user to cause the spike or spikes to puncture the diaphragm and release the reagent and/or carried liquid which then soaks along an absorbent layer (40) until it reaches a viewing window (20). The test substance, particuarly a liquid, is applied to the absorbent layer at a cavity (16), and combines with the reagent and/or carrier liquid as it moves to the viewing window. If required, the absorbent layer may include one or more discrete areas or bands (44) of an absorbed reagent substance through which the reagent and/or carrier liquid and the test substance pass. The medical (or other) condition for which the test is being made is shown as a colour or tone change of the absorbent layer as seen through the viewing window. <IMAGE>
Patent GB-2201339-A (GB)
Title: A stand for a printer
Inventor: HALSON BRIAN JOHN
IPC: B41J29/06
Filed: 1987-12-22
Abstract: A stand for a printer comprises two pairs of stabilized upright supports 20, 21, to which are attached removably a shelf 8 for a printer 9, shelves and trays 12, 13 for supporting its paper, and paper guides 16 for guiding the path of paper feed and retrieval and preventing paper entanglement. The paired upright supports are linked to the other-pair by cross- members 6, one of which is spaced such with respect to a shelf 8, or else is provided with a slot, that the paper feed path passes past or through the cross-member without restriction. The shelves, trays and guides are removably attached to the upright supports by pegs, each of which is engagable with a receiving aperture of a series of receiving means running the full length of each upright support. <IMAGE>
Patent GB-2221384-A (GB)
Title: Automatic dishwasher
Inventor: WYMAN PATRICK ROY
IPC: A47L15/42
Filed: 1988-08-03
Abstract: In an automatic dishwasher, a washing cycle includes alternating periods of high and low jet strength. The periods of low jet strength give rise to less acoustic noise from the dishwasher. The jet strength may be varied by regulating pump speed, operating a solenoid-controlled valve regulating flow of wash liquid to the jet orifices, or by employing either one of two sets of jet orifices differing in size.
Patent GB-2225734-A (GB)
Title: Fluid filter assembly
Inventor: MARSHALL DENNIS ALBERT GEORGE
IPC: B01D46/00
Filed: 1988-11-30
Abstract: A flat filter assembly comprises an annular outer section and a separate inner section which is removable for test purposes. As shown both sections comprise active carbon in layers 10 of cellular material, but the filter medium can be pleated paper or foamed plastics. The two sections have respective matching frames 16, 18 whose flanges 20, 22 overlap, so that screws 21 may hold the inner section in place, with tape covering the gaps. <IMAGE>
Patent GB-2218305-A (GB)
Title: An asynchronous time division network
Inventor: ARNOLD JOHN SPENCER
IPC: H04L12/56
Filed: 1989-04-11
Abstract: The asynchronous time division network transmits data by way of high rate bearers. The data is divided into fixed length packets. The network comprises a switching matrix having a number of input and output ports arranged in columns. Each data packet is routed from an input port to a defined output port via addressed switching nodes. Each node has a queueing means, and each queueing means of each output column is tested and priority is given to the first queueing means tested which holds more than one packet.
Patent GB-2218763-A (GB)
Title: Electronic slip control system
Inventor: WOOD JAMES A
IPC: B60T8/62
Filed: 1989-05-09
Abstract: An electronic slip control system for railway vehicle brakes has a standard slip control logic circuit (Fig 1 not shown) responsive to axle speed (AS) and rate i.e. acceleration (AR) signals to produce a multi-bit binary number word. A primary slip control word formation circuit (PSCWF) converts the multi-bit binary number word to a hexadecimal number word which is conveyed to a primary slip control table (PSCT). The primary slip control table (PSCT) conveys the hexadecimal number word to a table output selection circuit (TOS). A synchronous slip control logic circuit (Fig 1) is responsive to the axle speed (AS) and rate (AR) signals to produce a second multi-bit binary word. A synchronous slip control word formation circuit (SSCWF) converts the second multi-bit binary number word to a second hexadecimal number word which is conveyed to a synchronous slip control table circuit (SSCT). The synchronous slip control table circuit (SSCT) conveys the second hexadecimal number word also to the table output selection circuit (TOS) which causes intermediate circuit means (Fig 3) to convey an appropriate control signal to a brake valve (MV) for preventing wheel lockup. <IMAGE>
Patent GB-2220072-A (GB)
Title: Surveying of boreholes
Inventor: RUSSELL ANTHONY WILLIAM
IPC: G01V3/26
Filed: 1989-05-30
Abstract: A method of deriving the true magnitude of the terrestial magnetic field in the direction of the longitudinal axis of a borehole at a region of the borehole occupied by an instrumentation package equipped with magnetic vector measuring means for measuring the lateral magnetic vectors Bx and By and further equipped with gravitational vector measuring means for measuring each of the three gravitational vectors Gx, Gy, and GZ. The method comprises the steps of performing said measurements of the magnetic vectors and the gravitational vectors and from said vector measurements solving the equation:-  Bze = (BVe.Ge - Bx.Gx - By.Gy) / Gz where BVe is the vertical component of the terrestial magnetic field at the location of the borehole, and Ge is the terrestial gravity field. The terrestial gravity field Ge may be derived as the square root of the sum of the individual squares of the individual gravity vectors Gx, Gy and Gz, according to the equation:-  Ge = (Gx<2> + Gy<2> + Gz<2>) <1/2 > . The invention is based on the assumption that the vector measurements, and in particular the lateral magnetic vectors, are substantially uncorrupted by the drillstring or the bottom-hole assembly.
Patent GB-2231024-A (GB)
Title: Protective device for blade of silage grab.
Inventor: LINDBERG ARNE
IPC: A01F25/20
Filed: 1989-06-02
Abstract: This invention relates to a protective device for silage grabs of the kind comprising a rear frame part having attachment means for fitting the grab to a carrier vehicle, and a front part which is pivotably arranged in relation to the rear frame part, the front part comprising at least one cutting edge, and which grab further comprises means for bringing about the pivoting movement of the front part in relation to the rear frame part. According to the invention the protective device comprises a protective member (41; 70) which is pivotably journalled in relation to the front part (10; 60).
Patent GB-2232424-A (GB)
Title: Down-pipe trap
Inventor: PLATT TREVOR B
IPC: E03F7/00
Filed: 1989-06-05
Abstract: A down-pipe trap comprises a rectangular box (1) with a hinged door (2) with a rotatable knob (3) allowing access to a filter grid (5) inside for emptying purposes. The hinged door has a water deflection plate (4) attached to the inside. The box has an elongated hole in the top to accept an adjustable top plate in order to accommodate the variable size and positioning of a down-pipe. The top plate then secures the down-pipe to the box by way of two bolts. The bottom section of the box has sloping sides towards a short neck which fits into a lower down-pipe. Four flanges (12) secure the leaf trap to the wall. <IMAGE>
Patent GB-2220828-A (GB)
Title: Address producing circuit for zoom function
Inventor: CHOI HOON-SUN
IPC: G06T3/40
Filed: 1989-07-11
Abstract: Disclosed is an address producing circuit for a zoom function in which a plurality of horizontal and vertical addresses are provided to permit wider selection of a partial picture around a plurality of locations disposed on the screen of a monitor device. Image data stored in a predetermined address region according to the selection is road out to display on the screen, so that the picture of the selected partial region can be magnified to a whole screen picture. Two multiplexers are respectively fed with a plurality of row and column addresses defining the starting point of the plurality of regions. The pair of addresses are selected using a microprocessor (13) and command decoder (14) controlling the multiplexers (15), (16). The zoom function is produced by addressing the field memory at sub-rates of the color sub-carrier and horizontal sync. frequencies. <IMAGE>
Patent GB-2221638-A (GB)
Title: Making structural component by lost foam casting
Inventor: TAYLOR DAN
IPC: B22D19/14
Filed: 1989-07-13
Abstract: A method of producing a structural component comprises preparing a heat destructible model or former having a plurality of layers with each such layer comprising webs (1) separated by spaces (2). The layers are arranged such that the spaces (2) between the webs (1) of a particular layer are partially overlaid by the webs in adjacent layers. The former is embedded in a refractory particulate such as sand, and molten metal is cast and allowed to solidify so that the model is destroyed and there is produced a structural component of generally honeycomb-like configuration. A filling material such as carbon fibre may be incorporated within the model so as to become encast in the metal. Examples of possible applications and metals used are given. <IMAGE>
Patent GB-2235101-A (GB)
Title: Computer interface device
Inventor: TINCKLER ROBERT
IPC: G06F3/00
Filed: 1989-08-18
Abstract: A computer interface device (10) includes a housing (12) in which are mounted dials (14) and scales (16). The device is adapted to interface with a computer running an applications program, the dials being arranged to input variables to the program and the scales displaying output values from the program. The device is useful in providing an analogue representation of the results of the program (on the scales), given the digitally convened analogue input of variables (from the dials). <IMAGE>