baber/WOPTO huggingface dataset:
Patent GB-1292667-A (GB)
Title: Improvements in or relating to semiconductor devices and to methods of making them
Inventor: GLINSKI VINCENT JOHN
IPC: H01L27/00
Filed: 1969-12-22
Abstract: 1292667 Integrated circuit isolation WESTERN ELECTRIC CO Inc 22 Dec 1969 62285/69 Heading H1K In an integrated circuit a component or group of components may be electrically isolated from the substrate by the depletion layer associated with an encircling zone of opposite conductivity type to the substrate, the arrangement being such that the depletion layers from opposite inner sides of the encircling zone meet under the component or component group (without avalanche breakdown). Construction is simplified by forming the component(s) and encircling zone in a low resistivity surface layer of the same conductivity type as the bulk of the substrate. The encircling zone may form part of the isolated component. Fig. 12 shows an npn transistor forming part of an integrated circuit. The high resistivity type substrate bears a lower resistivity epitaxial layer grown after the introduction of n type impurity to form the buried (subcollector) regions 148,149. Region 149 may be omitted or both buried regions may be omitted as shown in the otherwise similar structure of Fig. 1. When the buried regions are present the reverse bias V 2 -V 1  needed at the collectorbase junction to ensure that the associated depletion region extends (mainly in the high resistivity substrate) fully beneath the emitter 126 is lower. To concentrate emission at or near the lower face of the emitter base junction the base layer may be graded vertically to have higher doping concentration at the surface; for example, the emitter region and surface layer may be formed by diffusion. In general, the surface layer may be formed by epitaxial growth, by diffusion, or by ion-implantation; and the passivation may be single or multiple layer and comprise silicon oxide, silicon nitride, aluminium oxide, or zirconium oxide. Components isolated by this method may include bipolar transistors, insulated-gate field-effect transistors, resistors, and capacitors.
Patent GB-664355-A (GB)
IPC: H01F27/28
Abstract: 664,355. Transformers. CALVERT, R., and WAYNE KERR LABORATORIES, Ltd. March 16, 1949 [April 2, 1948], No. 9293/48. Class 38 (ii). A high - frequency transformer has two or more windings formed of superimposed turns of conducting tapes arranged with a turn or turns interleaved so as to obtain a desired distribution of leakage reactance between the windings. The turns are connected in such a way that the capacitative currents between the turns can be changed without altering the values of the leakage inductances, the total leakage inductance being reduced by adjusting the physical dimensions of the transformer. The transformer has a D-shaped magnetic core C preferably of coiled strip construction on which is wound a toroidal primary winding P. A copper screening ring R is placed over the primary winding and is split to avoid a shortcircuited turn. A further winding or windings is or are wound on an insulated former F which is so constructed to avoid air spaces and thus reduce the leakage reactance. These latter windings may be of copper strip, each turn, or part of a turn, being provided with tappings to allow the dispositions and the connections between the turns to be altered. In an alternative construction the copper screening ring R may closely envelop the core except that part of the core surrounded by the primary winding P. The Specification includes a supporting theoretical discussion.
Patent GB-677807-A (GB)
Abstract: 677,807. Rotary filters. OLIVER UNITED FILTERS, Inc. Dec. 20, 1950, No. 31010/50. Class 46 [Also in Group XXIX] A rotary disc valve controlling discharge pipes 8 from compartments of a rotary filter 1 comprises a valve member 11 secured to a cylindrical hub 3 and a fixed, co-operating member 14 spring-urged against the valve member. The latter has holes 12 disposed in a circle and corresponding with the pipes 8 whilst the member 14 has an annular groove 17 concentric and in communication with the holes 12. Nipples 19 having closure caps 21 may be screwed into holes extending from the outer face of the member 14 to divide up the groove into sections as desired, the nipples having shoulders 20 such that their inner ends are flush with the inner face of the' member 14, whilst other nipples 19 for making pipe connections from the groove have a distance nut 22 whereby their inner ends are below the inner face of the member 14.
Patent GB-2000219-A (GB)
Title: Joints, primarily for toys
IPC: F16B21/08
Filed: 1978-06-06
Abstract: A joint comprising two joint parts 15, 16 or 17, 18 pivotally connected with each other by a fastening element 22 or 23 passed through bores in the joint parts, and a braking ring 19 or 20 of an elastomeric material which is arranged in correspondingly shaped sockets in the joint parts. <IMAGE>
Patent GB-2006034-A (GB)
Title: Dosing apparatus
IPC: A01K7/02
Filed: 1978-09-14
Abstract: Apparatus for dosing a liquid additive, especially medicine, into drinking-water for cattle, the drinking- water being pumped up from a well or a reservoir (18) by means of a pumping device (19) driven by the cattle when drinking-water is required, and comprising a piping (2) for the additive (3) which is connected by means of a tight gasket (7) to a main suction piping (1), the piping for the additive being connected at its other end to a dosing member (5) with a built-in non-return valve (12, 15, 16, 17) and placed in a container (4) for containing the additive. <IMAGE>
Patent GB-2030779-A (GB)
Title: Improvements in or relating to the manufacture of flexible printed circuits
IPC: H05K1/00
Filed: 1978-09-27
Abstract: A method of manufacturing a flexible printed circuit board comprising bonding, by means of a thermoplastic adhesive film, a sheet of flexible substrate material to a rigid base board of for example fibre glass, prior to processing the sheet to form a printed circuit. The flexible printed circuit board is then removed from the base board by peeling. <IMAGE>
Patent GB-2030232-A (GB)
Title: Floating breakwater and energy collecting system
IPC: E02B3/20
Filed: 1978-09-27
Abstract: A combination floating breakwater and wave energy collecting system comprises floating platform means containing a plurality of wave energy collection means, the collection means comprising collection chambers 20 open at the bottom and each having a relatively vertical back wall 20L and a sloped front wall 20F the collection chambers being arranged in a plurality of rows located side by side. Converting means on the platform converts the wave energy collected in the collection chambers into a transmittable form of energy. The floating platform comprises a pair of elongated floating spread wings (not shown) and the spread of the wings can be adjusted. The collection chambers may be arranged as pressure chambers and vacuum chambers and may be associated with air turbines driving electric generators. <IMAGE>
Patent GB-2005653-A (GB)
Title: Preparing zeolites
IPC: C01B39/02
Filed: 1978-10-10
Abstract: A method of preparing zeolites by hydrothermal crystallisation of an alumino-silicate gel produced by combining solutions of sources of silica, alumina and alkali metal in such a way that a completely dispersed gel of creamy translucent appearance and no visible gel particles is produced. Control of the viscosity of the combining solutions is illustrated as achieving such a result.
Patent GB-2009211-A (GB)
Title: Azo Compounds
IPC: C09B41/00
Filed: 1978-10-31
Abstract: A process for manufacturing azo compounds of the formula:   <IMAGE> wherein E is the residue of a coupling component which comprises mixing together and reacting in acidic aqueous medium, 2-amino-6- methoxybenzthiazole, a coupling component EH and a diazotising agent.
Patent GB-2007820-A (GB)
Title: Beer cooler
IPC: B67D1/08
Filed: 1978-11-08
Abstract: A method of cooling and a cooler for cooling carbonated liquids particularly beer in which the liquid is supplied from a container to and taken from the cooler to a dispenser by a common conduit, there being provided at least two parallel cooling paths (1, 2) between the common conduits (12 and 16) so that the carbonated liquid can be cooled more effectively without suffering pressure drops or increased thermal disadvantages necessary when using larger diameter tubes. The pipes, which may be coiled, may be immersed in or flooded with a cooled liquid 4 in known manner. <IMAGE>
Patent GB-2009409-A (GB)
Title: Measuring and recording surface profile
IPC: G01B7/34
Filed: 1978-12-04
Abstract: An instrument for recording the profile of a surface along a track on that surface, which comprises a receiving station (22) for a test surface (11), a probe member (12) adapted by magnetic means (15, 28, 13, 14) or by a cam, Fig. 3 (not shown) to oscillate between a null position out of contact with a test surface at the receiving station and a contact position in which the probe member makes point contact with such a surface, means (16) for causing relative movement between the probe member and such a surface so as to track said probe member across the surface, and strain gauges (21) for registering the distance between the null and contact positions on each oscillation cycle of the probe member. <IMAGE>
Patent GB-2082956-A (GB)
Title: Hook-nail fixing device and driving machine therefor
IPC: B25C5/16
Filed: 1979-01-31
Abstract: A hook-nail fixing device 4 comprises two nails 41 at the leading edge of a plane portion 42 formed with a hook 43. A driving machine has a specially designed hook-nail magazine 30 and a feeding device 32 slidably mounted on a rod 33 and biassed by spring 34 to urge the array of hook-nails forward in a trough formed by said magazine 30 and a U- shaped base 31 so that the leading fastener is pressed against a check secured to the forward end of the magazine. The leading fastener is driven by an adjacent angled percussion plate 36. Magazine 30 slides forwards as plate 36 is raised by depressing handle 11 and is pulled back by spring 5 as spring 22 drives plate 36 downwards to insert the fastener. <IMAGE>
Patent GB-2041727-A (GB)
Title: Juice extractor
IPC: A47J19/02
Filed: 1979-02-13
Abstract: A battery powered juice extractor comprises a body (2) in which is located an electric motor and power supply batteries. The motor drives two co-axial output shafts (5, 6) via a gear box such that the inner shaft (5) rotates continuously and the outer shaft (6) performs rotary oscillating motion. A juice collection trough (8) is detachably mounted on the body (2). A juice filter (13) and extraction head (17) are nested within the trough (8) with the filter (13) in driving engagement with the outer shaft (6) and the extraction head (17) in driving engagement with the inner shaft (5). In use, the oscillating motion of the filter helps to dislodge solid matter from the perforate base (15) of the filter, and the solid matter builds up against the sidewall (14) of the filter by centrifugal action. <IMAGE>
Patent GB-2018194-A (GB)
Title: Method of forming a frangible seal
IPC: B29C65/00
Filed: 1979-03-12
Abstract: A method for forming a fracturable seal 30 between a plastics closure cap 20 and a plastic planar surface 27 around the neck of a container 12, wherein the cap is seated on the planar surface and a heated die 28, which surrounds the cap, is caused to be moved towards the planar surface and to melt both the plastics at the planar surface by contact therewith and the portion of the cap adjacent the planar surface, due to the proximity of the portion to the die so as to fuse the portion to the planar surface. <IMAGE>
Patent GB-2038252-A (GB)
Title: Improvements in and relating to amphibious tracked vehicles
IPC: B60F3/00
Filed: 1979-04-23
Abstract: A tracked vehicle is described typically for carrying personnel and equipment over difficult terrain ranging from ordinary road surfaces and the like through to snow. The vehicle may even be adapted to float on water and suitable propeller drive is provided to that end. The vehicle includes a smooth flat underside (12) with caterpillar tracks (such as 54) mounted on opposite sides of the vehicle, the track being formed from segments (72) into which teeth of inverted T cross-section are fitted, the teeth being designated by reference numerals 76 and 78. The caterpillar tracks pass round solid rubber wheels and the whole of the tracks are adjustable vertically relative to the rest of the vehicle to allow for deeper or shallower grip to be obtained. A canopy is provided over the vehicle. Weight distribution within the vehicle is arranged so that the central gravity is slightly to the rear of centre. A trailer having a skid or road wheels is provided where appropriate.   <IMAGE>
Patent GB-2019793-A (GB)
Title: Flow Deflector Blades
IPC: F02K1/00
Filed: 1979-04-25
Abstract: A flow deflector blade 4 primarily for mounting within the efflux of an aircraft propulsion fan so that a change of flow direction can be effected, includes a leading edge member 6, a trailing edge member 7, a leaf spring member 8 of arcuate form connecting the two, and filler portions 12, 13 of rubber bonded to each side of the leaf spring member shaped to provide a desired blade contour. <IMAGE>
Patent GB-2020899-A (GB)
Title: Planar transmission line
IPC: H01P1/15
Filed: 1979-05-10
Abstract: A planar transmission line for use as an attenuator or switch is formed on a semiconductor substrate consisting of a high resistivity semiconductor material 10 and a thin, conductive semiconductor layer 12. Metal conductors 14 and 16 are formed on the conductive semiconductor layer 12 to form the transmission line and at least one of the metal conductors forms a Schottky junction with the layer 12. The gap 18 between the metal conductors 14 and 16 defines a shunt current path through the layer 12. By applying a bias voltage to the metal conductor in the Schottky junction, the conductivity of the shunt path can be controlled by changing the depletion layer width across the Schottky junction. A plurality of planar transmission lines can be combined into multi-port networks, examples of which are cross-bar switching devices and  beta  element switching devices. <IMAGE>
Patent GB-2047161-A (GB)
Title: Hollow fiber form polycarbonate membrane for use in dialysis and process for producing same
IPC: B01D71/52
Filed: 1979-05-24
Abstract: A polyether-polycarbonate block copolymer dialysis membrane in the form of a hollow fiber having an inner diameter of 100-500 microns. The membrane possesses inner and outer dense surface layers and has a membrane thickness of 5-40 microns, and is characterized as exhibiting, as measured at 37 DEG C, a diffusive permeability coefficient to sodium chloride of 700x10<-4> -950x10<-4> cm/min., a diffusive permeability coefficient to vitamin B12 of 80 x10<-4>-150x10<-4> cm/min. and a permeability to water of 2-10 ml/ m<2>.hr.mmHg, and being substantially impermeable to human albumin. The membrane is produced by a method wherein a polyether-polycarbonate block copolymer solution is extruded through a circular orifice into the atmosphere while a coagulating liquid is forced inside the tubular extrudate so that the tubular extrudate is stretched in the peripheral direction; then, the tubular extrudate is passed through the atmosphere for a predetermined period of time, and; then, introduced into a bath of a coagulating liquid, thereby to be coagulated.
Patent GB-2030335-A (GB)
Title: Ideographic Character Encoding
IPC: G06F17/22
Filed: 1979-06-22
Abstract: A character selection keyboard for use in connection with an ideographic language of which the characters can each comprise one or more of a set of character components, comprises an array 10 of character component keys each bearing a symbol 40 corresponding to a character component. Some of the components have separate linguistic identity and can accordingly be used in isolation to constitute characters in the ideographic language; these components are all depicted within a part 29/30 of the array which is visually distinct from the rest of the keyboard. The keyboard can be connected in a composing system in which data defining the structure of the characters constituted by the components selected by key actuation is derived from a programmable store in response to key signals generated by the key actuation. The keyboard may also be used in typewriters, telex machines, and other systems requiring data input. <IMAGE>
Patent GB-2027826-A (GB)
Title: Disc brake assembly
IPC: F16D55/2265
Filed: 1979-06-28
Abstract: A disc brake assembly (e.g. for motor-cycles), comprises a carrier member (2) mounted to the vehicle frame and a caliper member (4) mounted on the carrier member (2) for sliding non-rotative movement (by a non-circular pin (5) or by two bolts). Friction pads (23, 24) on opposite sides of disc 7 are of sintered material-pad (23) is applied by a mechanical cam actuator and pad (24) by reaction, and pad (24) is sintered directly to the caliper member (4). The pad (23) may also be sintered directly to a piston (21) or a sleeve (27-see Figs. 5,6). Various cam actuators are disclosed, operable by cables whose length may be adjusted. <IMAGE>
Patent GB-2025904-A (GB)
Title: Containers for shock-proof packaging
IPC: B65D81/107
Filed: 1979-07-12
Abstract: A container e.g. for a pharmaceutical product comprises a hollow capsule (1) having an aperture, a closure member (3) releasably engaged with the capsule to hermetically seal the capsule, one or more cushioning elements (8) disposed within the capsule and pills disposed within the capsule and held protected against mechanical shocks to which the exterior of the container may be subjected by means of the one or more cushioning elements (8). Preferably an inner hollow transparent member 7 is located within the capsule and accommodates the pills and the one or more cushioning elements (8) and is hermetically sealed by the closure member. Preferably the container has means for attachment to the dress of a potential user. <IMAGE>
Patent GB-2035330-A (GB)
Title: Recovering proteins from milk by ultrafiltration
IPC: A23C9/142
Filed: 1979-10-01
Abstract: A process is disclosed for separating one or more proteins from milk, which comprises subjecting the milk to a heat treatment in order to partially denature the proteins present therein, separating the proteins from the other non-fat constituents of the milk by ultrafiltration, the proteins ending up in the retentate fraction, and subsequently subjecting retentate fraction to a complementary heat treatment in order to denature the proteins. The milk proteins obtained may be used for preparing infant and/or dietetic products, and for making cheese.
Patent GB-2059947-A (GB)
Title: A continuous process for the production of 2,6-dichloro-3-nitropyridine
IPC: C07D213/61
Filed: 1979-10-08
Abstract: A continuous process for the production of 2,6-dichloro-3-nitropyridine by nitrating 2,6-dichloro-pyridine with a mixture of concentrated sulphuric acid and fuming nitric acid at elevated temperature comprises passing a mixture of 2,6-dichloropyridine, concentrated sulphuric acid and fuming nitric acid (density 1.5) through one or more heat exchangers using one or more degassing units so that from 1800 to 2200 ml per hour of the reaction mixture pass through one square centimetre of reactor tube cross-section, the temperature of the bath liquid in the heat exchanger(s) being in the range from 120 to 145 DEG C, and the mixture containing from 1002 to 1087 g of concentrated sulphuric acid containing from 232.8 to 252.2 g of SO3 and from 88 to 264 ml of fuming nitric acid for each 148 g (1 mole) of 2,6-dichloropyridine.
Patent GB-2033343-A (GB)
Title: Dispensing of beverages
IPC: G01F11/02
Filed: 1979-10-09
Abstract: A beverage dispenser, for dispensing predetermined measured quantities of beverage only after the complete filling of a measuring device (11), comprises a holding device (52) between the measuring device (11) and the dispense point, to temporarily receive beverage discharged from the measuring device (11), the capacity of the holding device (52) being variable according to the discharging beverage pressure relative to a datum pressure which purges the holding device (52) of beverage on cessation of the discharge. The holding device (52) comprises two regions created by a piston in a cylinder or a diaphragm (56) across a chamber, the volume of the holding device (52) being determined by the piston position or diaphragm (56) configuration. One region is subjected to the datum pressure and the other region to the discharging beverage pressure, the piston or diaphragm (56) being movable by such pressures. The measuring device (11) may comprise a chamber having a diaphragm (14) therein movable by beverage as it fills the measuring device (11) and movable in the opposite direction by pressure air at the datum or a greater pressure. <IMAGE>
Patent GB-2041110-A (GB)
Title: Seals
IPC: F16L5/10
Filed: 1979-10-22
Abstract: The invention relates to toroidal, elastomeric seals suitable for use in underwater installations where a pipeline passes through a duct. The seal is designed to accommodate both longitudinal and radial relative movement between pipe (36) and duct. It has the form of a double-walled elastomeric tube (37), the walls defining a hollow toroid, the seal being able to roll longitudinally by translation of part of outer wall (37B) into inner wall (37A) and vice-versa, the distance between the innermost diameter and outermost diameter of the seal being greater than the radial distance to be sealed and the seal having a sealable, circumferentially- extending split (defined by ends 38 and 39) in its outer wall. The seal, by virtue of its split, can be manufactured on a toroidal former rather than a cylindrical mandrel as would be required for an unsplit construction. <IMAGE>
Patent GB-2046865-A (GB)
Title: Insulation of pipe by multi- stage application of foam
IPC: B29C48/00
Filed: 1980-02-19
Abstract: Metal e.g. steel pipe insulated with foamed polyurethane plastic is made in a multi-stage continuous process in which an inner layer of polyurethane plastic is foamed on the pipe and at least partially cured to form low-density foam having high heat insulating capacity, and an outer layer of polyurethane plastic is foamed on the inner layer to provide a foam layer of higher density, the outer layer having a density at least 25% greater than that of the adjacent inner layer, the thickness of the outer layer being 5 to 30% of the total thickness of the foamed insulation. The inner layer may be subdivided into two or more layers having different physical properties. A common protective layer e.g. polythene/butyl adhesive tape, epoxy, heat actuated adhesive or asphalt may be first applied to the pipe. An outer protective layer of paper, butuminous inactive or plastic e.g. polythene, polypropylene or epoxy may be applied. The plastic may be heat shrinkable.
Patent GB-2072458-A (GB)
Title: Electroacoustic transducers
IPC: G01F23/28
Filed: 1980-03-03
Abstract: An electroacoustic transducer is provided in the form of a flexible tape formed of an inner flat metal foil 10 surrounded by a metal foil 14 and separated from the latter by an electret 12. The outer metal foil 14 is in turn surrounded by a PVC outer layer 20. This construction provides a flexible electret type of microphone with the additional advantage of immunity from ambient acoustic waves and electrical and magnetic fields.
Patent GB-2076787-A (GB)
Title: Article Feeding and Orienting Devices
IPC: B65B35/06
Filed: 1980-05-30
Abstract: An article feeding and orienting device comprises a hopper 1 with at least one inclined rotatable feeder member 2 having a helical conveying formation 22 extending upwardly from the hopper bottom to a discharge point 26, vertically movable agitator members 4 being provided on each side of the feeder member and fixed article support members 3 being preferably disposed between the feeder members and the agitator members with their upper surfaces 31 slightly below the uppermost surfaces of the helical formations 22. <IMAGE>