baber/WOPTO huggingface dataset:
Patent GB-2042866-A (GB)
Title: Process for reducing grain dust explosibility
IPC: B02C11/06
Filed: 1980-02-01
Abstract: A process for reducing the explosibility of grain dust by dispersing throughout an explosible mass of grain and grain dust an aqueous solution of an inorganic salt hydrate such that at least .0001 parts by weight of inorganic salt hydrate is dispersed per part of dust.
Patent GB-2074291-A (GB)
Title: Valve Locking Device
IPC: F16K35/10
Filed: 1980-04-03
Abstract: A valve locking device comprises at least one hook (24) constructed to hook over a handwheel (38) or other moveable opening and closing member of a valve (28), to prevent rotation or other movement of that member. <IMAGE>
Patent GB-2054147-A (GB)
Title: Underwater soil investigation
IPC: G01V1/38
Filed: 1980-07-04
Abstract: Method for determining under water the nature of the upper layer 5 of the water bed, wherein a contact body 1 is dragged over the bed, the sounds of contact between contact body and the bed being recorded and, after amplification, reproduced. <IMAGE>
Patent GB-2083507-A (GB)
Title: A rapid invention electromagnet particularly for flat bed knitting machines
IPC: D04B15/70
Filed: 1980-08-30
Abstract: A rapid intervention electromagnet is provided especially for flat bed knitting machines. The electromagnet has a cam (KA) operating keeper AN position such that a spool of the electromagnet is located between a keeper fulcrum CU and a stem of the cam controlled thereby. The core of the electromagnet comprising a stationary portion NF within the spool and a movable core portion NM movable with the keeper. <IMAGE>
Patent GB-2060194-A (GB)
Title: Stroboscopic Timing of Machine Parts
IPC: A24C5/31
Filed: 1980-09-04
Abstract: The position of a reciprocating or rotating part of a machine is identified at a required point in the machine cycle by dividing the machine cycle into numbered notional segments and viewing the part by a stroboscope flash at a preselected numbered segment. The preselected numbered segment is identified by counting the segments through the machine cycle and comparing the count with a present count number on another counter. As described, the invention is used with a cigarette making machine. A counter 12 counts off segments of the operating cycle, and a comparator 15 lights a stroboscope 17 when the count in counter 12 equals that in a manually pre-set counter 13. The preselected count is indicated at 18, and can be used subsequently to check shifts in the position of the machine part caused, for instance, by wear or backlash. <IMAGE>
Patent GB-2086426-A (GB)
Title: Copper foil for a printed circuit
IPC: C25D5/10
Filed: 1980-10-21
Abstract: Copper foil for a printed circuit comprises a copper layer, a tin layer formed on one side or each side of the copper layer and a vanadium-containing zinc layer fromed on the tin layer. The vanadium content of the vanadium-containing zinc layer may be 0.05 to 10% by weight based on the amount of zinc. The foil can be used to provide a printed circuit board which is free from stains at the interface of the foil and the resin substrate, which has strong adhesion between the foil and the substrate both before and after heat treatment and which on etching is free from undercutting phenomena. Moreover the surface not bonded to the substrate does not undergo oxidation on lamination and so has good affinity to resist ink and solderability. The tin layer serves to prevent migration of zinc into the copper layer at room temperature and to control the amount of diffusion which occurs on heating at the time of lamination.
Patent GB-2065368-A (GB)
Title: Thin film transistors
IPC: H01L21/336
Filed: 1980-11-07
Abstract: A thin-film transistor comprises a gate electrode, a source electrode, a drain electrode, an insulating layer formed on the gate electrode and a semiconductor layer overlying the insulating layer and having different portions contacting the source and drain electrodes. The gate electrode and the semiconductor layer are respectively made of tantalum and tellurium. The insulating layer is formed by subjecting the gate electrode, made of tantalum, to an anodization process.
Patent GB-2090052-A (GB)
Title: Oven for electronic component
IPC: H03H9/08
Filed: 1980-12-23
Abstract: An oven (14) provided with means for maintaining the temperature of an electronic component, such as a quartz crystal (1), placed in the oven at a substantially constant temperature which is higher than the ambient temperature, in which the means comprises at least one body (8, 8a) of a thermistor material having a positive temperature coefficient of resistance whereby it acts as a self-regulating heater when connected to a voltage supply, the temperature/resistance characteristic curve of the thermistor material being selected to provide said predetermined temperature within the oven at a given voltage supply, and the said body or bodies (8, 8a) form, or extend over, a major part of the surface of said oven. <IMAGE>
Patent GB-2067607-A (GB)
Title: A connecting rod
IPC: D03C13/00
Filed: 1981-01-14
Abstract: In a connecting rod for controlling a heald frame in weaving machines, one of a pair of opposed end plates (1, 2) carries a shaft (6) for connection to a heald frame. A seat (8) with peripheral groove (9) is formed in the free end of said shaft (6). The other plate (2) carries, in a position corresponding to that of said shaft (6), a projecting pin (10) with peripheral rib (11) dimensioned to be inserted into said seat (8). By moving the plates (1, 2) axially relatively to each other the rib (11) engages the groove (9). The plates are associated with members (3, 4) which have interengaging rack surfaces (3') and are held in position by a clamp.
Patent GB-2091783-A (GB)
Title: Mineral mining installation
IPC: E21D23/00
Filed: 1981-01-27
Abstract: A mining installation includes a self-advancing roof support unit (2) with which is associated a forward base part (22) which is independent of the floor-engaging member (4) of the Unit (2). The forward base part (22) is connectable to the floor-engaging member (4) and movable relative thereto. An elevated track (26, 33) is carried on the forward base part and in use supports a mining machine (32) which can travel reciprocally therealong. <IMAGE>
Patent GB-2096776-A (GB)
Title: Improvements in or relating to thrust stands
IPC: G01L5/13
Filed: 1981-03-12
Abstract: A thrust stand is provided for testing an aero-engine, such as a jet engine 1. The stand comprises a first support 16 to which the engine is fixed. The first support is connected to a second support 20 by means of flexure plates 19. Transducers 32 are connected between the first and second supports for measuring the thrust produced by the engine. Each flexure plate 19 is perpendicular to the thrust direction and is clamped along opposite sides to the first and second supports by clamping plates. The plates 19 may thus be made from stainless steel sheet and do not require machining. The second support 20 is suspended from fixing pads 25 by means of torsion bars 21. The resonance frequency of this suspension may thus be adjusted to avoid vibration problem areas and to match airframe installation stiffnesses for flight simulation testing. <IMAGE>
Patent GB-2077954-A (GB)
Title: Lift control system
IPC: B66B1/18
Filed: 1981-06-01
Abstract: An operation control system for managing and controlling operations of lift cars (EL1, EL2) driven in parallel includes a plurality of car control apparatus (L1, L2) each adapted to control individually an associated car. Each of the car control apparatus (L1, L2) includes an input/output unit (ACIA) for exchanging information about positions and travel directions of the cars with the other car control apparatus, and a supervisory control unit (L, SM) for controlling operation of the associated car in conjunction with the other cars on the basis of the information received. <IMAGE>
Patent GB-2079235-A (GB)
Title: Article Transfer System
IPC: B65G1/127
Filed: 1981-06-16
Abstract: In a continuous conveyor circuit utilizing a plurality of suspended pallet or working supporting buckets or platforms (28) that are pendulant, a system is provided to avoid oscillation of the buckets not only in the straight runs of the conveyor chains (24) but also as the buckets traverse the curved regions around chain sprockets (12,20). A separate stabilizer chain (52), spaced from the main drive conveyor chains (24) is parallel in its path to the main drive chain, and bucket sprockets (50) at each bucket are engaged peripherally with the main drive chain. The stabilizer chain (52) is driven at the same linear speed as the drive chains (24) so that, as the bucket sprockets (50) move around a curved path, they are controlled to maintain proper consistent orientation of the buckets. <IMAGE>
Patent GB-2078591-A (GB)
Title: A Platen Press
IPC: B31B50/25
Filed: 1981-06-18
Abstract: A platen press having two flat platens (10, 11), one carrying a cutting or creasing forme (13), which are brought together to cut or crease a sheet (25) of material passed between them, wherein the platens move in orbital paths of opposite sense such that the forme engages and disengages a sheet whilst moving generally in the direction of sheet feed, there being drive means for the platens and the sheets and a spaced controller forming part of a means for matching the speeds of the platens and the sheets during the cutting operation. In one embodiment, the sheets move at a constant speed and the platen speed is varied between cuts, and in another embodiment, the platens move at a constant speed and the sheet speed is varied between cuts. In a third alternative, the speeds of both the platens and the sheets may be varied to ensure synchronism. <IMAGE>
Patent GB-2079113-A (GB)
Title: Networks for suppressing mid-frequency modulation effects in compressors, expanders and noise reduction system
IPC: H04B1/04
Filed: 1981-06-29
Abstract: Signals in the high and/or low frequency extremes of a signal transmission system, in which those extremes are subject to errors in the transmission channel, are attenuated so as not to control the action of a compressor feeding the transmission channel and so as to be attenuated in the compressor output to the channel. Consequently, a complementary expander fed by the channel is not subject to control by transmission channel errors. A filter network or networks is or are used having a characteristic, referred as a spectral skewing characteristic, with an abrupt shelf or roll-off and a corner frequency selected to attenuate signals in the frequency extreme or extremes and well within the usable frequency range of signals normally carried in the system. A-10 db shelf at around 10 kHz is illustrated for audio applications. To restore an overall flat frequency response a complementary network (or networks) may be employed with the expander, the network having a "de-skewing" characteristic. <IMAGE>
Patent GB-2086065-A (GB)
Title: Detecting a film aperture
IPC: G03B1/60
Filed: 1981-08-20
Abstract: An aperture in a film is detected by a light-emitting element 1 and light-receiving element 2 on the same side of the film (on either the lens side; as shown, or the camera back side). Various arrangements are illustrated. The light may be infra-red. The aperture may be relatively light or dark compared with the film. The method may control a film counter (the light- emitting element being used to record frame numbers on the film), or detect film sensitivity by the size of the aperture, thus enabling automatic exposure. <IMAGE>
Patent GB-2085568-A (GB)
Title: Cooker Panel
IPC: D06F39/00
Filed: 1981-09-24
Abstract: An electrical household appliance, such as an electric cooker, comprises an indicating and operating panel (3) and a single light source (30) by which indicating and/or operating elements of the panel can be illuminated through a single light conductor (17, 18). The light conductor is optically connected at an end face thereof to the light source (30), extends along the indicating and operating panel (3) and is optically connected to the indicating and/or operating elements. <IMAGE>
Patent GB-2097184-A (GB)
Title: Temperature regulating an electronic circuit module
IPC: H05K7/20
Filed: 1982-02-01
Abstract: A combination of heating 10 and cooling 2 elements within an electronic circuit module provide constant temperature regulation, at above or below ambient temperature, in order to achieve maximal performance from semiconductor integrated circuitry 8, 20. The temperature regulation function may be achieved with relatively low current control circuitry operating the heating element, and may be electrically isolated from the integrated circuitry. Alternatively temperature regulation may be achieved by controlling the cooling element. The module is capable of performance over at least a 50 DEG C variation in ambient temperature. <IMAGE>
Patent GB-2100437-A (GB)
Title: Electrical measuring instrument
IPC: G01D7/00
Filed: 1982-05-11
Abstract: A dial pointer 413 with an externally threaded shaft 415 is angularly and axially adjustably secured on an internally threaded bushing 417 provided within one end of a hollow meter shaft 419, a locknut 427 locking the pointer in position. The analogue display is part of a modular analog/digital display for use in a cylindrical aircraft instrument housing designed to enable the digital components to be assembled without interference to the analog meter mechanism. The digital display is of the leadless type and is clamped under compression to a circular circuit board with a pair of contact strips in registration with contacts formed on the circuit board and digital display. A modular backlighted analog/digital display for use in a cylindrical aircraft instrument housing includes an analog indicator dial backlighted by an illumination source diffused by a translucent light collecting plate having a configuration corresponding to that of the analog dial. Digital displays of the self-illuminated type, e.g. incandescent or LED digital readouts are covered by a polarizing filter to enhance image contrast and protected by an opaque coating to prevent light from the collecting plate from washing out the digits. The analog pointer is formed from a translucent material, and is connected to an analog meter mechanism and is illuminated by light from the illumination source which is transmitted through a light pipe. <IMAGE>
Patent GB-2100147-A (GB)
Title: Electrostatic spraying
IPC: B05B17/06
Filed: 1982-06-16
Abstract: In a spraying apparatus to achieve control of the velocity with which spray drops land on a target, a spray liquid is subjected to mean pressure to determine the mean velocity of a jet of liquid from a nozzle 16 on a spray liquid reservoir 10 and to a superimposed periodic pressure perturbation, e.g. by means of magnetostrictive transducer 17, to cause the jet to break into drops. An electrical charge is applied to the drops by means of electrodes 22. By control of the mean and periodic pressure for a particular nozzle size the jet velocity and drop size can be arranged to produce a particular drop landing velocity at a known range. In this way the application, and retention, of spray on plants can be controlled and selective application to one type in a mixture of plant types achieved. <IMAGE>
Patent GB-2123867-A (GB)
Title: Conduit supports
Inventor: BOMBEKE MARTIN
IPC: F24D3/14
Filed: 1982-07-16
Abstract: There is provided a welded mesh structure (3) for locatingly supporting a plurality of conduits (5) (Fig. 1 not shown) prior to embedment in a cast floor (6) comprising a criss-cross lattice of wires (7,8) in which at least some of the wires (7) running in at least one direction are arranged in pairs, the wires of each pair having spaced along their length conduit engagement means (9) extending outwardly of the plane of the lattice and wherebetween a said conduit (5) may be snugly and locatingly supported against lateral movement. <IMAGE>
Patent GB-2125739-A (GB)
Title: Partitioning living space e.g. in mobile homes
Inventor: CUMMING JAMES
IPC: B60P3/36
Filed: 1982-08-24
Abstract: A cupboard unit (1) is movable between a storage position (Fig. 1) and a partitioning position (Fig. 3), the unit having a door (4) which is movable to close off the cupboard unit or to form part of the partitioning. The invention may be applied to the toilet space of a caravan, motor caravan or boat. <IMAGE>
Patent GB-2105623-A (GB)
Title: A method of continuous casting
Inventor: JACOBI HATTO
IPC: B22D11/128
Filed: 1982-09-03
Abstract: Upon leaving a continuous casting mould a billet is directed along a curved guideway which extents beyond a quadrant arc and passes on into an inclined linear portion. The inclination is selected in relation to the billet thickness, and the billet dropping speed and the cooling conditions such that the billet completes solidification in the inclined portion, on the same horizontal plane as the casting level in the mould. <IMAGE>
Patent GB-2111695-A (GB)
Title: Parallel alignment of surfaces
Inventor: VAN PESKI CHRISTIAN
IPC: H01L21/30
Filed: 1982-09-24
Abstract: A spherical air bearing has a base 51 mounted on a table 50 and is supplied with air under pressure at 65. The complementary part 55 has a groove 57, 58, 59, to enable it to float on the base. Part 55 carries a platform 53 carrying a semi-conductor wafer 11'. A vacuum is applied at 61 to grooves 57, 58 to hold the bearing parts together, and to hold the wafer 11' on platform 53. High pressure air at 65 frees the bearing, and jets 69, 69' (there may be three) mounted on the body of a camera 30 move the top part of the bearing until wafer 11' is parallel to the end of the camera housing (i.e. perpendicular to its optical axis.) High pressure air is removed at 65 and the vacuum locks the bearing. Air for jets 69, 69' may also be used to focus the camera lens. Means are disclosed for rotating the wafer about its centre. <IMAGE>
Patent GB-2110983-A (GB)
Title: Dielectric films
Inventor: TERAMOTO YOSHIKICHI
IPC: H01G4/20
Filed: 1982-10-15
Abstract: A dielectric film is a stretched film comprising a thermoplastic resin cross- linked to have a gel content of 20 to 75%, and finely divided dielectric procelain particles. It is manufactured by a method involving the steps of cross- linking thermoplastic resin containing dielectric procelain particles, and stretching the composition at a temperature which is (i) not more than 20 DEG C below the melting point of the resin, if it is crystalline, or not more than below the glass transition temperature of the resin if it is amorphous and (ii) below the lowest temperature at which decomposition occurs.
Patent GB-2115434-A (GB)
Title: Triphendioxazine dyestuffs
Inventor: RENFREW ANDREW HUNTER MORRIS
IPC: C09B19/02
Filed: 1982-12-16
Abstract: A dyestuff of the formula   <IMAGE> wherein: the groups X1 and X2 are independently hydrogen, halogen, alkyl, alkoxy or aryl; (R)n represents n substituents R each of which is independently halogen, lower alkyl, lower alkoxy or COOH and n is 0 or 1;  a + b is 0 to 4; A is 0, S or NR2 wherein R2 is H or optionally substituted lower alkyl; B is an optionally substituted aliphatic or optionally substituted araliphatic group; R1 is hydrogen, optionally substituted lower alkyl, optionally substituted aryl or optionally substituted aralkyl; and Z is an aromatic nitrogen ring heterocycle devoid of cellulose-reactive groups. The dyestuffs are valuable for the colouration of cellulose especially in the form of paper. The resulting coloured cellulose is a bright blue with good fastness properties.
Patent GB-2137078-A (GB)
Title: Carrier for glasses or other vessels
Inventor: GRESHAM WILLIAM DAVID
IPC: A45F5/00
Filed: 1983-02-03
Abstract: A carrier consists of a frame structure 12 at the base of which is a platform 14 on which the vessel e.g. a glass 15 can sit within the framework. A loop or bracelet 17 of a size through which the wrist can be placed is then attached to the top of the frame at a point which is centrally above the base of the glass carrying platform. The whole assembly can then swing freely from the wrist and vessels and their contents when placed upon the platform will be subject to centrifugal force and inertia and thus retain their positions without any other retaining features and be held and transported without slippage or spillage. <IMAGE>
Patent GB-2121597-A (GB)
Title: Sodium - sodium nitrate cell
Inventor: ROCHE MICHAEL FRANCIS
IPC: H01M4/36
Filed: 1983-04-05
Abstract: A power producing secondary electrochemical cell includes a molten alkali metal as the negative electrode material and a molten nitrate salt as the positive electrode material. The molten material in the respective electrodes are separated by a solid barrier of alkali metal ion conducting material. A typical cell includes active materials of molten sodium separated from molten sodium nitrate and other nitrates in mixture by a layer of sodium  beta '' alumina.
Patent GB-2119186-A (GB)
Title: Elevator polyphase motor control
Inventor: SALIHI JALAL T
IPC: H02P23/08
Filed: 1983-04-28
Abstract: A polyphase induction motor 13 propels an elevator car 10 and is powered by a multiphase inverter 14 which receives power from a battery 16 or a cyclo converter. The inverter is controlled in such a way as to control the frequency and amplitude of the power supplied to the motor in order to control the motor's speed, acceleration, and slip. That inverter control is accomplished by sensing the motor's speed and in response providing predetermined slip and torque signals. These signals are applied to an amplitude and frequency control circuit 22 together with a TACH signal indicative of motor speed. This circuit, Fig. 2, provides polyphase control signals in the form of stepped sine waves at a frequency controlled in response to a comparison of the slip and tach signals and at an amplitude controlled by the torque control (AMPLITUDE) signal. These control signals are applied to a PWM which provides control signals for the inverter. The slip can be controlled over a range which can provide negative slip, by which power is regenerated into a battery 16, and positive slip for motoring torque. <IMAGE>
Patent GB-2142085-A (GB)
Title: Two-stroke crankcase compression engine
Inventor: BLAIR GORDON P
IPC: F02B75/02
Filed: 1983-04-28
Abstract: At least one first transfer duct (K) and further transfer passage (B-B min ) extend between the crankcase chamber (L) and the cylinder. The passage (B-B min ) communicates with the cylinder between the point of discharge thereinto of the first transfer duct (K) and at least one exhaust port (J). In operation air/fuel mixture is drawn into both the crankcase chamber (L) and the first transfer duct (K) with a large percentage of the associated fuel, which is in liquid form, tending to enter the first transfer duct (K) with the remainder drawn into the crankcase chamber (L). On the downward movement of the piston, the leaner mixture enters the cylinder from passage (B-B min ) and the richer mixture enters the cylinder from the first transfer duct (K). <IMAGE>
Patent GB-2120889-A (GB)
Title: High voltage ramp rate control systems
Inventor: SIMKO RICHARD THOMAS
IPC: H01L27/105
Filed: 1983-05-26
Abstract: In order to optimise the ramp rate of the h.v. supply in EEPROM and other charge storage supplies whilst not dissipating power nor loading the substrate bias generator, the ramp voltage V0 from a voltage multiplier (Figure 3) is applied to a regulating transistor T1 channel. The gate of the transistor is capacitively coupled to the ramp voltage terminal, and is connected to supply VS via constant current sink T2. If the ramp at V0 is too slow, T1 turns off, removing any current drain from the voltage multiplier. If the ramp is too fast, the capacitor couples a higher current than I1 to node V1, turning transistor T1 on more, and thus decreasing the ramp rate. T1 sinks current to earth rather than the substrate. <IMAGE>