baber/WOPTO huggingface dataset:
Patent GB-2227385-A (GB)
Title: Soft limiting microphone amplifier circuit
Inventor: GAY MICHAEL JOHN
IPC: H03G11/04
Filed: 1988-11-24
Abstract: In order to reduce clipping of output signals from microphone amplifiers at high signal levels, there is provided, in a feedback path around a forward amplifier 4, 5, 10, a linear transfer circuit 11 and a non-linear transfer circuit 50. The non- linear transfer circuit is substantially inactive at low signal levels but, at high signal levels it has a transfer coefficient which increases with increasing signal levels so as to reduce the amount of high frequency energy in the output signal. The gain of the forward amplifier is gradually reduced with increasing signal level, at high signal levels. <IMAGE>
Patent GB-2228567-A (GB)
Title: Intelligent inspection system
Inventor: WALTERS DAVID THOMAS
IPC: G06T7/00
Filed: 1989-02-28
Abstract: An inspection system which stores and processes image signals from a television camera in a computer, so that the operator is assisted in distinguishing any differences between a "known good assembly" previously viewed and stored and the assembly being inspected. Data regarding the component parts of the assembly and their positions is also provided so that the operator can establish the correct component that should be present at any location and its alignment. A record can be made of the faults found and any necessary corrective action, and analysis can be undertaken on sets of records. The data regarding the component parts of the assembly and their positions can be gained from an intelligent assembly/ rework system and once faults have been established, data on faults can be sent back to that system, to speed rework.
Patent GB-2231255-A (GB)
Title: Pan or scoop
Inventor: FOSTER JOHN
IPC: A47L13/52
Filed: 1989-05-05
Abstract: A pan or scoop for the collection of unwanted matter, such as dust or animal faeces, has a mouth formed by a flat base portion 1 joined by side walls 2, 3 to an upper portion 4. The side walls are hingeably connected to the base and upper portions allowing the pan to fold flat. The upper portion may have a foldable handle 11 and the outer edge 12 of the flat base portion may be reinforced. The pan may be provided with a flap, attached to the free edge of the upper on base portion. which can be folded over the mouth. The mouth of the pan may be sealed alternatively by a separate sealing tape. The pan may be made from paper, laminated paper, paper coated on one or both sides with a synthetic polymer, or it may be injection moulded from a thermoplastic resin. <IMAGE>
Patent GB-2232287-A (GB)
Title: Display apparatus
Inventor: VAUGHAN PHILIP SALMON
IPC: G09F9/35
Filed: 1989-05-23
Abstract: A display apparatus comprises a transparent panel 10 which includes liquid crystal display elements for displaying a message, and a controller 20 having a keyboard on which at least one message can be programmed into a memory for driving the display when required. The panel 10 may be adhered to the rear window of a car for example or to the window of a shop etc. <IMAGE>
Patent GB-2233275-A (GB)
Title: Uniformly curing moulded plastics by varying the heat input in proportion to the cavity size
Inventor: JONES JOHN DOLAN
IPC: B29C33/02
Filed: 1989-05-25
Abstract: The plastics material is cured in a mould cavity defined by dies (10, 11). Each die has an array of heating elements (13, 18) which are controlled independently of one another by sensors (15, 16, 17) and a central unit (14), to maintain different temperatures at different positions on the surface of the mould cavity, so that the cavity portions of greater dimensions receive a larger amount of heat, to ensure uniform curing throughout the cavity. <IMAGE>
Patent GB-2235102-A (GB)
Title: Switching circuit
Inventor: LAZARUS MAX JONATHON
IPC: H03K17/567
Filed: 1989-07-21
Abstract: A circuit for controlling the supply of DC current to a load 13, comprising an output transistor 16 connected in series with the load, a driver transistor 17 connected to supply base current to the output transistor, and a circuit for supplying pulses of current to the driver transistor 17 to cause the driver transistor to turn the output transistor 16 on and off. The driver transistor is connected to a stable voltage source, and as a result remains active even when the collector voltage of the output transistor approaches zero. Thus the "diode" formed by the base-emitter path within the output transistor remains in the on state and there is no initial on-voltage "shelf". A transistor 18 driven by the input pulse assists rapid turnoff of the output transistor 16. A diode 20 prevents reverse current flowing in the driver transistor 17 which may be of the DMOS or IGBT type. <IMAGE>
Patent GB-2236064-A (GB)
Title: Abrading tool
Inventor: HOLMAN ANDREW PETER
IPC: B24B7/18
Filed: 1989-09-14
Abstract: An abrading tool, particularly for levelling marble or other tiles, comprises a flexible backing disc 1 bonded to one surface of which is at least one flexible abrading pad 2 consisting of flexible sheet material carrying abrading grit. Fastening pads 3 made of hooked nylon fabric are bonded to the other surface of the disc 1 for attaching the tool to a rotatable element of a floor finishing machine. <IMAGE>
Patent GB-2226930-A (GB)
Title: Area specifying signal generation device using output video signal from video camera
Inventor: SHIMODA KENJI
IPC: H04N5/262
Filed: 1989-12-21
Abstract: A memory 19 stores area specifying data for controlling a switch 44 in the path of a signal of a first image in order to replace a portion of a first video signal with another signal (second video signal or fixed value signal). The control data of the memory 19 is obtained by converting a video signal, derived by a video camera, into a binary signal by a binary-coding circuit 12, the subject viewed by the video camera being a sheet of white paper on which an area edged by border lines is specified. To create the area specifying data an edge counter 15 counts the edge signals in the resulting video signal and an odd/even number detection circuit 16 determines whether the counted value is odd or even. Then, a flip-flop circuit 17 produces a signal corresponding to the area specified by the border lines between the odd and even numbered edge signals, and the area specifying data is obtained from an AND circuit 18. …<IMAGE>…
Patent GB-2230880-A (GB)
Title: An input/output section for an intelligent cell which provides sensing,bidirectional communications and control
Inventor: SANDER WENDELL B
IPC: H04Q9/00
Filed: 1990-04-04
Abstract: A network for providing sensing, communications and control is described. A plurality of intelligent cells (27, 28) each of which comprises an integrated circuit having a processor and input/output section are coupled to the network. The cells can be coupled to different media such as power lines, twisted pair, radio frequency, infrared ultrasonic, optical coaxial, etc., to form a network. The preferred embodiment of the cell includes a multiprocessor and multiple I/O subsections where any of the processors can communicate with any of the I/O subsections. This permits the continual execution of a program without potential interruptions caused by interfacing with the I/O section. The I/O section includes programmable A-to-D and programmable D-to-A converters as well as other circuits for other modes of operation.
Patent GB-2230004-A (GB)
Title: Method for treating solid waste
Inventor: REYNELL CHRISTOPHER PAUL RICHA
IPC: B03B9/06
Filed: 1990-04-09
Abstract: A process for digesting a solid waste material comprises:   (a) subjecting the decomposable fraction of a solid waste to anaerobic bacterial digestion, so as to produce a fluid fraction, a methane rich gas fraction and a solid fraction which is environmentally more acceptable than the feed solids; (b) subjecting a fluid waste material, which may be the fluid fraction from the solids digestion stage or a separate fluid waste material, to anaerobic bacterial digestion in a digestion stage separate from the solids digestion to produce a fluid fraction containing active anaerobic bacteria and a methane rich gas fraction;   (c) feeding at least part of the fluid fraction from the fluid digestion stage to the input to the solid digestion stage; and (d) recovering at least part of the environmentally more acceptable solids fraction from the solids digestion stage.   <IMAGE>
Patent GB-2244816-A (GB)
Title: Illumination apparatus for a microfiche reader
Inventor: TAYLOR CHARLES JAMES FORBES
IPC: G03B21/11
Filed: 1990-04-10
Abstract: The apparatus comprises a light source (1) for positioning remote from the reader (not shown); a fibre optic cable (2) for transmitting light from the remote light source (1) to the reader, a first optical system for focussing light from the light source into the input end of the fibre optic cable and a second optical system (3) for receiving light from the output end of the fibre optic cable (2) and directing it towards a microfiche holder within the reader. The first and second optical systems are such as to optimise the light intensity transmitted to the microfiche reader and the fibre optic cable (2) is preferably of smaller diameter than the area to be illuminated. The apparatus is suitable for use in situations in which the microfiche reader is positioned in a hazardous area so the light source can be positioned within a safe area with the fibre optic cable (2) arranged to transmit light from the light source to the reader.
Patent GB-2231338-A (GB)
Title: Electrolytic conversion of bromide to bromate
Inventor: GILBEY MICHAEL ALLEN
IPC: C25B1/24
Filed: 1990-05-09
Abstract: Bromide is converted electrolytically to bromate in the presence of one or more salts chosen from any of vanadate salts, tungstate salts, molybdate salts, manganate salts, niobate salts and tantalate salts. Alkali metal vanadate salts are preferred. The salts are used as substitutes from chromate depolarising agents which are carcinogens.
Patent GB-2244126-A (GB)
Title: Localised clean air system
Inventor: MILES ANTHONY WILLIAM
IPC: F24F9/00
Filed: 1990-05-15
Abstract: A localised clean air system (1) for operating theatres and a method of supplying clean air to a localised region in such situations comprises means for generating or receiving a clean airflow is connected to a delivery head (2), which has an outlet (7) for directing the clean air to the localised region in a particular pattern in which a streamlined body (13) is positioned. In use, the clean airflows around the body (13) and is modified thereby to form, immediately downstream of the body, an inner region of low velocity air encircled by an outer region of higher velocity air. Preferably the streamlined body (13) is symmetrical about its axis and is aligned with the clean airflow, for instance by being centrally positioned in the air outlet. The streamlined body (13) conveniently comprises a rounded head and a tapered tail. Conveniently a flow smoothing means (9, 10) is disposed in the clean airflow upstream of the streamlined body to minimize turbulence in the airflow. <IMAGE>
Patent GB-2249289-A (GB)
Title: Vehicle, eg mower, with skid steering and articulated steering
Inventor: AUTY DAVID
IPC: B62D12/00
Filed: 1990-07-21
Abstract: A skid steered all terrain vehicle, eg a remotely controlled mower, has skid steering provided by a hydraulic circuit which supplies fluid to wheel motors at respective sides of the vehicle through independently controlled valves 34, 36. The vehicle may also have articulated steering such that the control valves operate together such that the wheels rotate in the same direction and vary in speed together. The vehicle can operate at slopes of up to 45 DEG  and can carry an implement such as a grass cutter (44) to be lowered to work and raised for transport. Means for sensing the load demand at each wheel may control the operation of the valves so that speed of the vehicle is adjusted automatically to the terrain. The hydraulic grass cutter motor (42) may be supplied independently of the speed of the wheels. The cutter may fold away above the vehicle, a height detector stopping the cutter drive above a certain height. <IMAGE>
Patent GB-2237361-A (GB)
Title: Valve arrangement
Inventor: SCHIEL LOTHAR
IPC: B60T15/02
Filed: 1990-09-13
Abstract: A valve arrangement comprises a housing (1) in which are arranged an electromagnetically actuatable pilot valve (5) controlling a differential pressure as well as a main valve (7) actuatable by the differential pressure, the closure member (13) of the main valve permitting communication to be established between an outlet port (20) and, alternatively, a first (21) or a second (22) inlet port. In order to keep the overall length of the valve arrangement as small as possible, the joint axis (29) of the pilot valve (5) and of the electromagnet (6) extends perpendicularly relative to the axis (30) of the main valve (7) in a plane that is radially offset relative to the axis (30). In the inactive position, both compartments (23, 24) are exposed to atmospheric pressure, and outlet port (20) and inlet port (22) are in communication. On actuation of the electromagnet (6) compartment (23) is closed to atmospheric pressure and opened in a passage (25) and inlet port (22) to a vacuum source, and as a consequence outlet port (20) is closed to inlet port (22) but opened to inlet port (21). <IMAGE>
Patent GB-2237740-A (GB)
Title: Hair treatment compositions containing glycoprotein extracts of gram (-) bacteria
Inventor: BONFILS ARMELLE
IPC: C12P21/00
Filed: 1990-10-17
Abstract: Topical compositions containing glycoprotein extracts of gram (-) bacteria are used for stimulating hair growth. The preferred bacteria are Klebsiella, Pseudomonas, E. coil, Proteus, Hafnia and Enterobacter.
Patent GB-2249426-A (GB)
Title: Mass spectrometer
Inventor: LEIGH DENNIS
IPC: H01J49/30
Filed: 1990-10-31
Abstract: A mass spectrometer 20 has an ion source 22 which connects with a tubular pump line 26 and with a section 30 inclined relative to the source 22. A flight tube 36 connectably extends from the side of the section 30 towards the axial direction of the source 22 and curves through a right angle. A permanent magnet 40 is provided which overlaps below and above the flight tube 36, wherein the face of the magnet 40 which faces the section 30 is convex such that the focal point of all the deflected ion beams lies substantially on a straight line within and parallel to the section 30. One or more ion collectors 48 are slidably mounted within the section 30 and movable as required along spaced bars 50 to detect different masses. <IMAGE>
Patent GB-2242956-A (GB)
Title: Power plant suspension device
Inventor: SATO SHIGEKI
IPC: B60K5/12
Filed: 1990-12-21
Abstract: A U-shaped bracket 20 supports an elastomeric bush type vibration damper on a power unit 22 (IC engine plus transmission). The inner tubular member 72 of the damper is mounted on the arms 20b, c of the bracket 20 by a bolt 18. Two tubular piezoelectric or electrostrictive strain generating elements 30, 30a are symmetrically disposed on the bolt 18 and housed within the inner member 12 of the damper. A control unit 32 which is responsive to crank angle and engine speed, produces an AC current and applies it to one of the strain generating elements 30, 30a. The phase of the same current is shifted by 90 DEG  before being applied to the other of the strain generating elements. The voltage and frequency of the AC current are selected in accordance with a predetermined schedule which is based on engine speed and crank angle and which enables the AC currents to be applied in a manner which generates vibrations which tend to negate the vibrations which are transmitted from the power unit 22 to the bolt 18 by the bracket arms 20b, c. The outer member 14 is supported by a bracket which is connected to the vehicle chassis; a strain gauge disposed on this bracket can supply feedback data to the control unit 32. <IMAGE>
Patent GB-2241703-A (GB)
Title: Preparation of IGF-1 and plasmids for use therein
Inventor: LEE YOUNG IK
IPC: C12P21/02
Filed: 1991-03-04
Abstract: IGF-1 (insulin-like growth factor 1) is producing by preparing cDNA therefor from mRNA extracted and isolated from human hepatocytes and transforming an E. coli strain with an expression vector wherein said cDNA is inserted as a fusion gone with another gene (e.g. beta-gal), the said vector being a plasmid having an enterokinase recognition site between IGF-1 gene and the other gene, the resulting fusion protein being cleaved with enterokinase. Alternatively, the plasmid may have linker DNA between the two genes which contains the codons AAC GM so as to provide a hydroxylamine cleavage site in the fusion protein. The fusion protein may be reacted with a disulphide compound, such as diethanol disulphide or dithiobisnitrobenzoic acid, in the presence of mercapto-ethanol catalyst to prevent the formation of intramolecular disulphide bonds and expose the recognition site to the cleaving enzyme.
Patent GB-2244263-A (GB)
Title: Adjustable guide rollers for feeding sheet material to rotary offset printing presses
Inventor: SCHROEDER DIETHELM
IPC: B41F21/00
Filed: 1991-04-26
Abstract: In the nip (21) between a counter impression cylinder (3) and blanket cylinder (4) rollers (1) are adjustably positioned on holders in such a fashion that sheets fed into the printing zone are guided and/or smoothed. Several holders are set on a cross member (5) arranged parallel to the axis of the counter impression cylinder. Each has a curved carrier (7) and in each of the curved carriers a slidable bow (5) is guided to permit adjustment relative to the periphery of the counter impression cylinder. The projecting end of the bow carries a freely rotatable running roller (1). The other end of the slidable bow is connected by means of an angularly movable coupling (8) to an adjustment screw (9) guided in the carrier, the straight line axis of which screw intersects with the curved centre line of the bow (6) at an obtuse angle. <IMAGE>
Patent GB-2244336-A (GB)
Title: Electronic proximity switch
Inventor: BRASSE DIERK
IPC: H01H36/00
Filed: 1991-05-16
Abstract: An electronic proximity switch, which may be aligned to accommodate various sensing directions, comprises a sensor housing 1 with a sensing face 4, a head joint 2 with a connection support 11, which may be selectively fastened to the housing 1 in two different angular positions to direct the sensing face 4 either axially or laterally, and a base to be mounted at the point of installation, to which the head joint 2 may be fixed in four, angular positions each 90 DEG apart. In order to be able to install the proximity switch conveniently even in cramped spaces, the sensor housing 1 contains the entire electronic circuitry and the base takes the form of a simple mounting block 3. A plug 17 is rotationally accommodated within the connection support 11 equipped with four radial bores 12. The mounting block 3 carries a fastening screw 14 which selectively may be screwed in through one of the bores 12 until it meets the plug 17, so that the angular position of the head joint 2 may be fixed at stepped positions and the plug 17 can be fixed at any desired angular position relative to the mounting block. <IMAGE>
Patent GB-2244461-A (GB)
Title: A motor vehicle front suspension
Inventor: BRUHL HUBERT
IPC: B60G21/055
Filed: 1991-05-24
Abstract: A front suspension of a motor vehicle with steerable wheels, equipped with a torsion-bar stabiliser, in which the returnability of the steering is improved. Connecting arms 44 connect the wheel carriers 12 to the offset ends 42 of the torsion-bar stabiliser 36, the joint 52 of the connecting arms 44 on the wheelcarrier side is articulated about the respective steering axis 22 on the wheel carrier and, during movement of the wheel carriers about the steering axis 22, the connecting arms 44 can be swivelled via the wheel carriers 12, in the same direction as the latter and counter to a flexible restoring support provided by a rubber torsion bearing 46 situated in the connection of the torsion-bar stabiliser 36 to the respective connecting arm 44. <IMAGE>
Patent GB-2248722-A (GB)
Title: Manufacturing multilayer ceramic electronic components
Inventor: HAMURO MITSURO
IPC: H01G13/00
Filed: 1991-07-15
Abstract: In order to manufacture a multilayer ceramic electronic component for example a multilayer ceramic capacitor inductor filter or pcb, a plurality of reels (23), which are wound with a plurality of types of long mother ceramic sheets (12), each having a plurality of electrode patterns (14) and a plurality of registration marks (15) distributed along its longitudinal direction, are prepared, so that the mother ceramic sheets (12) are drawn out from the respective reels (23) onto related sheet cutting stages (25) and regions including the electrode patterns (14) are punched from selected ones of the mother ceramic sheets (12) provided on selected sheet cutting stages (25) by a cutting head (52) whose periphery is enclosed with a cutting edge (51) on the basis of the registration marks (15), the punched out ceramic sheets (35) being carried for stacking onto a stacking jig (34) by the cutting head (52). The ceramic mother sheets are held to supporting belts in the cutting stages (25) by vacuum. The cutting head (52) includes CCD cameras (49, 50) that align with pairs of the registration marks (15). A robot (53) is driven by the resulting computed information to accurately cut out the mark-associated electrode pattern (14). <IMAGE>
Patent GB-2258273-A (GB)
Title: Rotor blade locking arrangement.
Inventor: EATON RAYMOND
IPC: F01D5/30
Filed: 1991-08-02
Abstract: In a locking arrangement for the rotor blades of a gas turbine, a plate 15 extends circumferentially over the roots 3 of several blades. The plates 15 are trapped, in the assembled position, between retaining hooks 13 and 9 respectively integral with the rotor disc 7 and the blade roots 3. The plates 15 each have a resiliently mounted dog 21 which, when in position, prevents rotation of the plate 15. The plate 15 is inserted in one rotational position, by deflection of the dog 21, and then moved rotationally to engage the plate with both sets of hooks and, at the same time to allow the dog 21 to snap into its locking position. The plate covers and seals the gaps between blade roots and rotor disc, the locking is positive and at the same time can be released by depression of the dog. <IMAGE>
Patent GB-2250319-A (GB)
Title: "Scroll compressor"
Inventor: MOROZUMI NAOYA
IPC: F04C18/02
Filed: 1991-10-01
Abstract: A scroll compressor comprises a first scroll wrap and a second scroll wrap (19) with a bearing portion (20) extending therethrough, the wraps having near their inner ends portions (25a, 25b) which define guide surfaces (24a, 24b). The guide surface (24a or 24b) on one wrap is contacted by the inner end (19a or 17a) of the other scroll wrap over an appreciable orbital angle. Various guide surface configurations are described which result in contact occurring over orbiting angles of 90 DEG , 180 DEG  or 270 DEG . <IMAGE>
Patent GB-2264409-A (GB)
Title: Television channel display
Inventor: WEIR STEPHEN
IPC: H04N5/445
Filed: 1992-02-03
Abstract: On receipt of a channel display command a CPU (10) in a television receiver reads channel information relating to a channel being viewed or recorded from a E<2>PROM (30) together with similar information relating to a number of adjacent channel numbers. The information is displayed as a menu of, for example, 10 channels via an on-screen display device (32) controlled by the CPU. Scroll up and scroll down buttons (36, 36) enable the display to be changed. <IMAGE>