baber/WOPTO huggingface dataset:
Patent GB-2194386-A (GB)
Title: Solder bonded integrated circuit devices
Inventor: PEDDER DAVID JOHN
IPC: H05K3/14
Filed: 1986-08-20
Abstract: A method of manufacturing a solder bonded integrated circuit device comprising providing a substrate surface, pressure bonding an area of a dry film photoresist material 2 to said surface, exposing a selected area of the photoresist material 2 to light and developing to provide an opening for receiving a metallisation area. A metal film 6, 7 is vacuum deposited and unwanted areas 6 of this film are then removed by a solvent washing stage. A solder mass is applied to the resulting metallisation area, the volume deposited may be such as to give a good solder bump and bond height. The technique may be applied to flip chip solder bonding. <IMAGE>
Patent GB-2205002-A (GB)
Title: Permanent magnet rotor for a dynamo-electric machine
Inventor: TURNER ALAN BURROWS
IPC: H02K1/27
Filed: 1987-05-08
Abstract: A rotating part 10 for a high speed synchronous generator comprises a portion 13 provided with an inner layer 14, an inner retainer ring 15, an outer layer 16 and an outer retainer ring 17. The layers 14, 16 are made up of magnetic and non-magnetic portions. The rings 15, 17 are of magnetic material. The greater strength of the non-magnetic portions reduces the centrifugal forces on the magnetic portions. The rotating part includes a core 11 of magnetic material and side walls 12 of non-magnetic material. <IMAGE>
Patent GB-2199240-A (GB)
Title: Method and device for paint brush preservation and storage
Inventor: KETTLE MORRIS ERNEST GODFREY
IPC: B44D3/12
Filed: 1987-12-09
Abstract: A paint brush cleaning or storage device is provided in the form of a sealed sachet (1) containing a predetmined quantity of a brush preserving or cleaning liquid (3), which sachet can be opened, for example by cutting along one edge or by means of a tear-off strip, to permit the brush head (5,6) to be inserted therein immediately after use either to prevent the brush drying out and keeping it ready for reuse, or to clean the brush. Preferably the sachet is of deformable foil which can be wrapped around (7) the brush handle (4) to reseal the sachet.
Patent GB-876965-A (GB)
Abstract: 876,965. Electric liquid fuel heaters and igniters. EBERSPACHER, W., and EBERSPACHER, H., [trading as EBERSPACHER, J. [Firm of]]. Dec. 18, 1957 [Jan. 10, 1957], No. 39302/57. Classes 75(1) and 75(3). In a device for feeding and igniting liquid fuel a feed tube 1, mounted to extend partly into a combustion chamber 13 transversely to an air current passing therethrough, is provided at the end outside the chamber 13 with a fuel inlet 11 and within the chamber 13 with openings 5 and an electrically conductive rod 3, mounted within the tube 1, is connected outside the chamber 13 to a current source and within the chamber 13, to a glow plug spiral 2. A jet 10 is provided in the fuel inlet 11. The tube 1 is axially adjustable within a bush 8 fixed to the combustion chamber wall.
Patent GB-2205742-A (GB)
Title: Carpet stretchers
Inventor: SAMSON ILAN ZADIK
IPC: A47G27/04
Filed: 1988-02-26
Abstract: A carpet stretcher (1) has a head (3) which can grip the surface of a carpet connected to and able to slide relative to a body (6), a lever (10) to move the body and head apart and a releasable lock acting on the head to fix the distance between the head and the body. Further extension of the head from its locked position is possible, without having to release the tension on the stretched carpet.
Patent GB-2204961-A (GB)
Title: Quantum well electro-optic device
Inventor: APSLEY NORMAN
IPC: H01L31/0352
Filed: 1988-04-15
Abstract: An electro-optic device includes a multiple quantum well region 28 comprising quantum well layers 38, 40, 42, undoped cladding layers of GaAs, 12 and doped cladding layers. These are arranged on a AlAs layer and a GaAs substrate disposed on a GaAs prism. A Schottky contact 32 is arranged on the quantum well region. The device is biasable by means of the Schottky contact and an ohmic contact. The doped layers provides modulation doping of the quantum well layers which are absorptive or transmissive according to whether these layers are electron populated or depleted. The depleted condition is obtained by a bias voltage applied across the contacts. Light passing via the prism to the quantum layer is accordingly modulatable, by varying the bias voltage. Alternatively, using a different prism plasmon generation can be controlled by the bias voltage. incident light being absorbed by the plasmon generation. An alternative detector embodiment which has a coupling mechanism is a diffraction grating disposed on the Schottky contact. <IMAGE>
Patent GB-2219781-A (GB)
Title: Roller conveyor drive
Inventor: MILLS STEPHEN JOHN
IPC: B65G13/073
Filed: 1988-06-14
Abstract: A powered roller conveyor comprises a plurality of rollers (6) driven by belts (5) from a drive shaft (3). A bearing insert (8) in each end of the roller has a spindle (13) extending therethrough, at least one end of said spindle being provided with flats engaging slots (21) formed in side members (1). Integral with said insert (8) is an axially extending sleeve of which the free end is threaded to accept a nut (11). A pulley (9) is mounted on the sleeve and a compression spring (10) located between said nut and said pulley presses the pulley against the insert (8), the axial loading between them being adjustable by rotation of the nut. The slipping drive provided by the above-described arrangement may be provided, in an alternative, by mounting the pulley and adjustable loading means on the drive shaft. <IMAGE>
Patent GB-2221362-A (GB)
Title: Attenuator
Inventor: KIKKERT ROF C J
IPC: H03H7/25
Filed: 1988-07-30
Abstract: An attenuator includes a pair of PIN diodes D1, D2 mounted with opposite polarities and a half wavelength transmission line 1 and is arranged such that as a control voltage is increased one diode is progressively switched "ON" whilst the other is progressively switched "OFF". The line 1 shifts the output of diode D1 by 180 DEG . Hence the two output signals of the diodes D1, D2 are 180 DEG  out of phase. By varying the control voltage a variable output is obtained of chosen magnitude and sign. <IMAGE>
Patent GB-2211080-A (GB)
Title: Brush manufacture
Inventor: CHURCHILL ANTHONY JOHN
IPC: A46B3/08
Filed: 1988-10-19
Abstract: A process of manufacturing a brush (1), comprises: positioning one end portion of a bunch or bundle of bristles (2) and an insert (4) in a ferrule (3), the insert being of channel-section and having side walls or arms (4b) extending from a base portion (4a) of the insert, the insert being positioned with its base adjacent and above the end portion of the bunch or bundle of bristles and with its arm extending away from the bristles, the ferrule and the insert having interengaging formations (3a<11>, 10) as shown in Fig. 3 which hold the insert against movement relative to the longitudinal axis of the ferrule; supplying liquid resin to the ferrule so that the ends of the bristles within the ferrule and the base of the insert become embedded in the resin; curing, and thereby hardening, the resin so that the bristles and the insert become secured in the ferrule by the hardened resin (5); positioning a handle (6) in the ferrule and fastening it to the ferrule preferably by fastening means (7) passing through the ferrule and the arms of the insert into the handle; and  optionally trimming the bristles. <IMAGE>
Patent GB-2212543-A (GB)
Title: Roller blind assemblies
Inventor: SANDALL RONALD ERNEST
IPC: E06B9/324
Filed: 1988-11-14
Abstract: A roller blind assembly e.g. for surrounding a hospital bed includes a support system for at least two blind carrying rollers positioned with their rotary axes out of alignment e.g. perpendicular, means for rotating one of the rollers and a coupling e.g. a right angle drive for transmitting rotation from one roller to the other. Blinds are mounted in inverted channels fixed to the ceiling above the sides and end of the bed.
Patent GB-2226595-A (GB)
Title: Internal combustion engine
Inventor: ALLEN JOHN
IPC: F02D19/12
Filed: 1988-12-23
Abstract: Water is injected into each cylinder 2 of an internal combustion engine 1 during the exhaust stroke of the piston 3 and timed by pressure in the cylinder acting through a bore 7, when the piston 3 uncovers the bore. Pressure in the bore 7 may act through a pipe 8 on a distribution block 10 having water distribution valves 11 to distribute water from a pump 12 via pipes 15 to the cylinders 2. Cylinder pressure through bore 7 may actuate an electric switch and the water injection quantity may be controlled by the fuel injection control to rise with increase in speed. <IMAGE>
Patent GB-2216016-A (GB)
Title: Golf ball with improved profile
Inventor: SHAW MICHAEL
IPC: A63B37/00
Filed: 1989-01-16
Abstract: A golf ball is provided on its outer surface (11) with alternately radially-outwardly-projecting discontinuities (20) and radially-inwardly-extending discontinuities (21). The distance (X) between adjacent discontinuities (20) may be 2 to 5 mm and the depth (Y) of each discontinuity (21) may be 0.1 to 0.4 mm. Preferably, the radius of curvature of the discontinuities (20) is equal to that of the discontinuities (21), so that when viewed in any direction along its periphery, the ball has a substantially sinusoidal configuration.   <IMAGE>
Patent GB-2215735-A (GB)
Title: Steel intended for highly stressed structural members with high demands for ductility and fatigue resistance, and the use thereof
Inventor: LUND THORE
IPC: C22C38/12
Filed: 1989-02-02
Abstract: Steel intended for highly stressed structural members with high demands for ductility and fatigue resistance, has a carbon content adjusted for the purpose for which it is to be used, the only intentional alloying additive in the steel being molybdenum. Other alloying materials normally used, such as Si, Mn, Cr, Ni, V and W are limited to the smallest normal level for the industrial manufacturing process applicable to the steel. The molybdenum content suitably lies within the interval 0.2 to 1.0%. The carbon content suitably lies within the interval 0.10 to 1.15%. The titanium content is preferably not more than 50 ppm. The oxygen content is preferably not more than 20 ppm. The S content is adjusted to the area of application of the steel and is suitably less than 0.015% for steels which are to be plastically worked, and within the interval 0.010 to 0.080% for cutability. The invention also relates to the use of the steel for the stated applications, particularly for case-hardening steel, heat-treatable steel, induction hardening steel, spring steel and roller bearing steel for structural members such as toothed gears, shafts and other transmission components, valve springs and roller bearing elements.
Patent GB-2220471-A (GB)
Title: Laundry dryers
Inventor: STEVENS MICHAEL
IPC: D06F58/50
Filed: 1989-06-09
Abstract: In a laundry dryer, the air passing through the laundry compartment is heated by at least one heating element 10a, 10b and regulated in temperature by at least one thermostat 14, 15. According to the invention, a resettable cut-out device 18 is connected in parallel with safety thermostat 17 so that, should thermostats 14 and 15 fail and thermostat 17 become heated to its opening temperature, cut-out 18 will open and will remain open even when thermostat 17 closes, for example, by means of heating coil 19 opening switch 20. <IMAGE>
Patent GB-2238379-A (GB)
Title: Obstruction detection apparatus
Inventor: TRETT JOHN
IPC: G01V8/22
Filed: 1989-10-13
Abstract: An obstruction detection apparatus for use on a movable door, for example, comprises an array of transmitter/receiver pairs (4), each pair comprising a transmitter and receiver in proximity and sharing substantially a common field of view, respective pairs being mounted in spaced apart relationship (d) along the leading edge of a door; a reflection means (6) mounted, adjacent the surface upon which the door closes to lie, within at least part of the field of view (R) of each transmitter/receiver pair, the reflection means having a substantially higher reflection coefficient than any other surface which normally lies within said field of view; and means (20) for detecting a reduction in the signal received by one or more receivers to indicate the presence of an object (7) interposing the door and the reflection means. Furthermore, if the reflection means (6) lies within only a part of the field of view then an increase in the signal received can indicate the entry of an object in the part of the field of view other than that in which the reflection means lies. Thus, two zones can be independently monitored.
Patent GB-2239107-A (GB)
Title: Motor control system
Inventor: TIMMONS JOHN BARRIE
IPC: G05D7/06
Filed: 1989-12-04
Abstract: The speed/torque of a motor 5 is controlled by sensing the number of people using a building or facility. The use of two sensors 2 enables the control to differentiate between people entering and leaving the building. A counter 3 provides a signal 6 proportional to the usage and the motor speed 5 is regulated accordingly. In this example a frequency inverter 4 is used on a three phase supply 7. An application of this invention would be to control the air changes in a ventilation system as related to the building occupancy. Another example would be to control the water circulating rate at a swimming pool relative to the number of swimmers. <IMAGE>
Patent GB-2235132-A (GB)
Title: Incontinence aid
Inventor: EDWARDS JANICE SANDRA
IPC: A47C21/06
Filed: 1990-07-26
Abstract: An incontinence aid comprises a bedsheet (1) and a waterproof sheet (7) capable of being attached to each other in fixed relationship and a cover capable of being removable attached to the bedsheet (1) in which position it covers the waterproof sheet (7). <IMAGE>
Patent GB-2234901-A (GB)
Title: Micro-encapsulation method
Inventor: HOLKER JAMES RONALD
IPC: A01N25/28
Filed: 1990-08-06
Abstract: A water-insoluble substance is encapsulated within a carrier such as corn starch granules or a cellulosic polymer from cotton linters or wood pulp by suspending the carrier in a medium comprising a carrier modifying agent and the water- insoluble substance dissolved therein so that the medium modifies the carrier so that it inbibes the substance which is then entrapped within the carrier by removal of the modifying agent. The modifying agent may comprise liquid ammonia or a mixture of liquid ammonia and ethanol, and may be removed from the carrier by addition of a solvent miscible with the modifying agent but incapable of modifying the carrier and a non-solvent for the substance. Encapsulatable substances include drugs, fire retardants, dyes and biocides.
Patent GB-2250135-A (GB)
Title: Antenna feed arrangements
Inventor: MCCORMACK JAMES OWEN
IPC: H01Q3/18
Filed: 1990-10-30
Abstract: A feed horn 4 for a satellite dish 1 is movable by means of an actuator 5 which may be electrically, mechanically or hydraulically driven. The orientation of the feed horn may thus be varied so that reflected signals from a plurality of satellites may be received. A guide limb (102), fig 5 may be connected to the feed horn and mounted in a slot (101), in a relatively stationary guide plate (100), so that the feed horn may swing in an arcuate manner and point to the correct region of the so-called "Clark Belt" in the sky. <IMAGE>
Patent GB-2238589-A (GB)
Title: An anti-skid device for a motor vehicle braking system
Inventor: BECKER ROLF
IPC: B60T8/42
Filed: 1990-11-02
Abstract: An anti-skid device, for installation in a motor vehicle braking system, has between the outlet of its return pump (16) and the master brake cylinder (3) a controllable non-return valve (31, 35), which, during anti-skid operation, takes up a non-return position to prevent pressure medium flowing out of the return pump (16) or accumulator (20) to the master brake cylinder (3) and a pressure-limiting valve device (21) is disposed between the outlet (18) of the return pump (16) and the master brake cylinder (3) allows fluid flow to the master cylinder to prevent excessive accumulator pressure. As a result, the high-pressure hydraulic accumulator (20) may have a smaller capacity. The valve (31, 35) is set to its non-return position by a piston (41) subject to master cylinder pressure. The pressure-limiting valve may be included in the combined valve/accumulator assembly (10, 20) and be opened when the piston (46) of the accumulator reaches a given position. <IMAGE>
Patent GB-2250492-A (GB)
Title: Roof rack
Inventor: PARNELL-KING MICHAEL
IPC: B60R9/08
Filed: 1990-12-03
Abstract: A load carrying device for attachment to the roof of a vehicle, particularly for carrying articles such as a windsurfer, in which a roof rack of the two spar type includes an extension piece (9) to facilitate loading, and the device includes a frame structure, which is preferably in a ladder form arrangement, to carry the article to be loaded.
Patent GB-2239836-A (GB)
Title: Injection moulding process
Inventor: NAISMITH ROBERT
IPC: B29C45/37
Filed: 1991-02-11
Abstract: A process for producing injection moulded plastics mouldings, the process including the steps of -   (a) producing separable mating resilient mould inserts which abut along opposed abutment faces to define therebetween a mould cavity; (b) inserting the resilient mould inserts into opposed movable mould parts of a plastics injection moulding apparatus, the mould parts being movable into abutment for moving the mould inserts into abutment to define said mould cavity, Figs. 3,6 (not shown), (c) injecting molten plastics into said cavity to create a plastics moulding; and (d) moving the mould parts apart to separate the mould inserts to permit removal of the plastics moulding,   (e) the separable mating mould inserts being produced by:   (i) placing an article 30 of which subsequent plastics mouldings are to be produced between opposed bodies 20 of a mouldable material which is curable to form a resilient material, Fig. 2, (ii) pressing the opposed bodies of mouldable material together so as to press the article into both bodies of mouldable material so as to create an impression of the article in said mouldable material; (iii) curing said mouldable material so as to retain said impression and form separable bodies 20 of resilient material; (iv) separating the bodies of resilient material and removing said article to thereby create said mould cavity.     <IMAGE>
Patent GB-2248320-A (GB)
Title: Stabilised CMOS analog bias current generator
Inventor: YAMAGUCHI ATSUO
IPC: H01L27/02
Filed: 1991-03-28
Abstract: A CMOS bias current generator comprising a current mirror 104, 105 and a non-linear current amplifier 102, 103, 107 is temperature stabilised by placing a diode 107 in series with a diode-connected FET 102 in the non-linear amplifier so that their temperature coefficients tend to cancel. The diode 107 comprises a diffusion into a well of complementary material. The bias current generator is intended for the analog sections of microcomputers, which may be used in a non-contact card. <IMAGE>
Patent GB-2259161-A (GB)
Title: System recovery
Inventor: FARHUMA NISSIM
IPC: G06F11/14
Filed: 1991-08-24
Abstract: A software-initiated system reset 10 is generated in response to invalid interrupts generated within a system which comprises control means for maintaining system control, and at least one device external to and under the control of the control means. An assessment as to the validity of an interrupt generated within the system is made, 14, whereupon the system reset is actuated, 15-19, 21-24, in response to an invalid interrupt and a software generated system reset signal is provided for the external device. Moreover, the actuation of the system reset causes the external device to be reset together with the control means. The invention alleviates problems, caused by inappropriate accessing of normally-unused interrupt vectors, due e.g. to noise spikes, RF transmissions and hardware or software failures. <IMAGE>
Patent GB-2259117-A (GB)
Title: Buoyancy motor
Inventor: BALL DAVID
IPC: F03B17/02
Filed: 1991-08-30
Abstract: A piston action float engine with an alternating valve system, is powered by a float (4) reacting to the constant and regulated rise and fall of liquid (2) within a vessel (1). The vessel is supplied with liquid through a liquid inlet valve (3) and liquid is obtained from the vessel through a liquid outlet valve (5). When the liquid inlet valve is open the liquid outlet valve is closed and when the liquid inlet valve is closed the liquid outlet valve is open, consequently the float rises and falls with the liquid level in a piston like movement and is contrived to rotate a crank shaft (8) or wheel by means of a crank arm (7) fitted to the top of the float. The piston action of the float could also be contrived to turn a beam. <IMAGE>
Patent GB-2263731-A (GB)
Title: Lockable i.c.engine exhaust pipe closure.
Inventor: FISHER RICHARD
IPC: B60R25/043
Filed: 1992-01-27
Abstract: A tube with an end flange is secured by grub screws to the end of the exhaust pipe and a larger tube with a closed end and a flange at the other end is mounted on the smaller tube. Holes in the flanges are aligned and a padlock secures the flanges to prevent removal of the larger tube.
Patent GB-2255668-A (GB)
Title: Display driving/controlling integrated circuit and display system
Inventor: ARAKAWA TAKASHI
IPC: G06F3/147
Filed: 1992-03-25
Abstract: A display driving/controlling integrated circuit includes a display memory (11) for storing data to be supplied to a display unit, a bus line (BUS0 to BUS7) of n-bit configuration for transmitting display data (DB0 to DB7) to be stored in the display memory with n bits set as one unit, and a data array direction selection circuit (13) connected to the bus line, for outputting display data on the bus line to the display memory either with the bit array kept in the original bit array status or inverted with respect to the original bit array. A display panel is divided into upper and lower sections each section being driven by at least one such circuit, the circuit associated with one section outputting the original bit array while the circuit associated with the other section outputs its inversion. Wirings between the LSI output terminals and the display panel can thus be simplified and the wiring connections can be easily made. <IMAGE>
Patent GB-2260968-A (GB)
Title: Lined cartons
Inventor: BOOTH PAUL ROBERT
IPC: B65D5/60
Filed: 1992-06-16
Abstract: In a carton of the kind in which a body is defined by side walls (25-28) fold ably connected to a base (24) and secured together in adjacent pairs to form the corners of the carton by means of a respective attachment flap (30) on one of said wail panels in overlapping relation with an adjacent one of said panels, a lining (40) is provided which extends continuously across at least such corners of the carton, the lining being secured to the blank from which the carton is formed and before it is folded to form the canton. <IMAGE>
Patent GB-2258127-A (GB)
Title: Glass tube enclosed immersion heater
Inventor: BRUCE KEITH JOHN ROBERT
IPC: H05B3/78
Filed: 1992-07-16
Abstract: A heater for liquid has a glass tube (1) within which is disposed an electrically conducting heating coil (4). The heating coil is arranged to be an easy sliding fit inside the tube such that the majority of coil turns contact the inside of the tube at a plurality of locations spaced axially and peripherally of the tube. By such contact, heat is readily transferred from the coil to the tube and, thence, into a liquid in which the tube is to be mounted. The coil (4) may be bent into a U-shape and formed over an insulating member (5). An electrical circuit (fig 2) for the heater which avoids the use of a step-down transformer compares a reference voltage with the voltage across a thermistor (TH1) of the liquid and provides an output in dependence thereon to gate a thyristor (TR1), which when gated ON applies power to the heater. <IMAGE>