baber/WOPTO huggingface dataset:
Patent GB-618242-A (GB)
Abstract: 618,242. Ignition systems. BENDIX AVIATION CORPORATION. Dec. 11, 1945, No. 33471. Convention date, Dec. 11, 1944. [Class 7 (iv)] An ignition system comprises a condenser which is charged through two half wave rectifiers parallel connected for conduction in both directions from an alternating current generator, the condenser being periodically connected for creating a discharge at a sparking plug. The figure shows a magneto supplying alternating current impulses from its secondary winding 14 to a condenser 22, through rectifiers 20, 21 in parallel. The rectifiers are of the cold cathode point to plane type which become conductive at a predetermined minimum voltage. The capacity of the condenser is chosen so that the voltage to which it is charged is less than the minimum conducting voltage of the rectifiers. Thus the rectifiers enable the condenser to be charged alternately positively and negatively and prevent discharge of the condenser back through the primary winding. Discharge of the condenser which is of a high-frequency nature is effected as shown by closing the contacts 24 of a contact-breaker 27 which connects the condenser to a distributor arm 28 co-operating with contacts 29, each connected to a sparking plug transformer 31 associated with a sparking plug 33. In a modification the contact breaker 27 may be replaced by a spark gap. The charging of the condenser alternately positively and negatively reduces pitting of the contacts 24 since the current flowing through these contacts is continually being reversed in direction. In an alternative arrangement there may be a condenser such as 22 and a contact breaker between each distributor contact and its associated transformer. The transformers 31 may be incorporated in or on the shielding casings of the sparking plug. A carbon brush type distributor may be used.
Patent GB-734363-A (GB)
IPC: B65D6/18
Abstract: 734,363. Boxes. RICHARDSON, G. S. Dec. 18, 1953 [Dec. 18, 1952], No: 32167/52. Class 18. A collapsible box has a tray-like base 12 and lid (not shown) with sides and ends hinged to the base, and fitting within it in the erected position. The ends 10, 11 carry flanges 20, 20<SP>1</SP> forming grooves for receiving the edges of the sides. The end hinges 15 permit the ends to be pushed down within the rim of the base. The sides and ends.fold within the base and the lid and base are secured together by catches in the collapsed condition.
Patent GB-2002651-A (GB)
Title: An apparatus for making a single crystal of iii-v compound semiconductive material
IPC: C30B27/02
Filed: 1978-07-14
Abstract: An apparatus includes a sealed vessel, a crucible received in the sealed vessel to hold a molten liquid of III-V compound semiconductive material, and floating member having an opening for defining the cross sectional outline of a single crystal while being grown and floating on the molten liquid. The floating member is made from a sintered body consisting essentially of at least one of oxides of yttrium and the lanthanum series elements, alumina and silicon nitride each in a prescribed amount. Alternatively, the floating member may be made from a sintered body of a mixture of silicon nitride and an additive, at least part of the additive being present as a crystallized phase in the sintered silicon nitride structure. <IMAGE>
Patent GB-2004292-A (GB)
Title: Jointing composition for pipe joints
IPC: C09K3/10
Filed: 1978-09-20
Abstract: A jointing composition for pipe joints is in the form of a paste comprising 29-40% by weight of liquid polyisobutylene 30-50% by weight of an inert filler e.g. china clay, 2-20% by weight of a finely divided inert abrasive material e.g. silica flour, and 1-28% by weight of at least one additive for pressure and/or temperature stabilization. Said at least one additive preferably comprises a humectant e.g. mono- propylene glycol a lubricant e.g. dimethyisilicone and a non-biodegradable wetting agent e.g. a nonyl phenyl ethylene oxide modified aryl ester. The jointing composition may be used with strands of a microbiologically inert plastics material e.g. polypropylene and is microbiologically inert so that it can be used in potable water installations. The composition is stated to be less likely to crack and split in service as compared with conventional jointing compositions.
Patent GB-2004693-A (GB)
Title: Improvements in or relating to the production of multi-layer silicon-gate structures on semiconducting substrates
IPC: H01L21/321
Filed: 1978-09-22
Abstract: In a process for the production of multi-layer silicon-gate structures on a semiconducting silicon substrate (1), an insulating layer consisting of thick oxide zones (2) and thinner gate oxide zones (3) is initially formed on the silicon substrate (1). Subsequently, two or more highly doped polycrystalline layers (4, 8) are applied consecutively and are partially removed to define individual gate structures. Prior to the application of the polycrystalline silicon layer (8), an oxidation step is carried out to form an intermediate oxide layer (5) which insulates the previously applied gate structures (4). A reliable mutual insulation of the gate structures (4, 8) without further increase in thickness of the gate oxide zones (3) is ensured, in that, prior to the application of the first polycrystalline silicon layer (4), the insulating layer (2, 3) is heated to 800-1200 DEG C in ammonia gas. The or each oxidation step is constituted by a heat treatment carried out at 800-1200 DEG C in gaseous oxygen. The process is suitable for the production of semiconductor stores and charge- coupled devices. <IMAGE>
Patent GB-2007511-A (GB)
Title: Football Board Game
IPC: A63F3/00
Filed: 1978-10-05
Abstract: A football game with movement of the components based upon the mobility of chess pieces and the rules of football itself, comprising a rectangular board the surface of which is squarelined by a plurality of divisions in two shades, each half-field area positioning in its squares eleven figures, together or not with a figure representing the ball. <IMAGE>
Patent GB-2013835-A (GB)
Title: Improvements in power take-offs for internal combustion engines
IPC: B60K17/28
Filed: 1979-02-02
Abstract: A shaft coupling arrangement for providing an auxiliary power take-off from a crank-shaft 1 of an internal combustion engine comprises a counter- bored hub 5 which is mounted on the crank-shaft end, a pair or pairs of conically tapered lock rings 6 located in the counter-bore 5a and a flanged stud 7 screwed into the end of the crank-shaft to press the hub axially towards an abutment member 4, thereby expanding the lock rings radially to lock the hub by friction to the shaft, the auxiliary drive being taken from the hub. <IMAGE>
Patent GB-2043112-A (GB)
Title: Recovery of metals from wastes
IPC: C21B3/04
Filed: 1979-02-28
Abstract: A process for obtaining metals from metalliferous wastes particularly steel-plate wastes in which an aqueous slurry of the waste (10) is subjected to high pressure filtration (11) and the resultant cake charged into a kiln (14) where it is reduced with a carbonaceous material. There is discharged from the lower end of the kiln a highly metallic sponge iron residue (17) from which an oxide rich in lead and zinc has been volatilized and recovered from the upper end, the cake possessing a sufficiently high moisture content as to enable the upper end kiln temperature to be at a level low enough to permit the gaseous products to be filtered direct (23, 24) without the provision of specific cooling means. <IMAGE>
Patent GB-2015917-A (GB)
Title: Slip Casting Mould
IPC: B28B1/26
Filed: 1979-03-12
Abstract: A mould 15, 16, 17 for casting ceramic material in slip form, includes a compartment 21 having an air impermeable wall and arranged, in the casting position of the mould when the mould is filled with slip, air is trapped in the compartment 21 which is located at a region where casting is not to occur and the trapped air not only achieves this but also prevents the surface of the compartment from becoming wetted, thereby making subsequent cleaning easier. The compartment may be formed either in a plaster mould part 20 and its surface rendered air impermeable, or in a separate part made of air impermeable material and assembled with the plaster mould parts. The mould is particularly suitable for casting a water-closet bowl, the compartment being located at the region where the open top of the bowl is formed. <IMAGE>
Patent GB-2049756-A (GB)
Title: Arched Brick for Woven Array
IPC: E04B2/12
Filed: 1979-05-11
Abstract: A weaving brick is a unit so shaped that any number of such units can be assembled to form a surface on which all joints of all units are concealed. The joints of all units are concealed by placing the ends of each unit under the raised middle section of other units thus forming the illusion of a complete area composed of unbroken woven strands. The units may be concrete and form architectural surfaces, or polystyrenes to form sound proofing or a metal, plasticiser wood to form a toy or educational aid. <IMAGE>
Patent GB-2049845-A (GB)
Title: Disc Brakes
IPC: F16D55/2265
Filed: 1979-05-16
Abstract: A disc brake assembly (1) for use on a heavy commercial vehicle having two discs (3, 4) mounted for sliding movement on a hub (7), along the axis of rotation of the hub (7) comprises an integrally formed carrier member (10) which is fixed to the vehicle and comprises a central web (12) which is located between the discs (3, 4) and end members (13, 14) which span the peripheries of the discs. Brake pads 9A-9D are mounted on the carrier member such that drag torque forces are transfered directly to the carrier member (10) via shoulders (19 or 20) formed thereon. A clamping mechanism (27) is mounted on the carrier member and comprises an actuator assembly (28) and a beam (29) interconnected by rods (30, 31) to provide the necessary clamping forces, but it does not receive any drag torque. Anti-rattle springs (24 or 25) are provided for the pads in alternative arrangements (Figures 1-4, Figures 5, 6). <IMAGE>
Patent GB-2023970-A (GB)
Title: Communication system optimized pooled line arrangement
IPC: H04Q3/545
Filed: 1978-10-26
Abstract: A communication system arrangement whereby the efficiency with which pooled facilities are used can be increased by reducing the number of lines that are dedicated to the pool. This is accomplished by making available to the pool, on a priority basis, lines that have been installed for other purposes, such as, for example, conference lines and private two-way lines. The system is arranged such that dedicated pooled lines have a higher priority than other lines which are available to the pool on a decreasing priority basis. In addition, each pooled set of lines at each station (S1) is given a visual indication using the system available lamp (211) to indicate whether an idle line remains in the pool. This arrangement allows each station user to determine, without unnecessary seizure attempts, whether or not an available line exists in the pool. <IMAGE>
Patent GB-2025555-A (GB)
Title: Conduit connector
IPC: F16L23/08
Filed: 1979-07-03
Abstract: A conduit connector (10) incorporates plural clamp segments (11, 12) operating to cam together flange members (21, 22) producing the coupling. Clamp segments (11, 12) are employed with bolts (18) so as to draw together the flange members (21, 22) employed upon the tightening down of the clamp segments relative to each other. The opposing faces of each of the flange members (21, 22) are provided with recesses mutually accommodating the insertion of a metallic sealing ring. When the flange members (21, 22) are drawn together the sealing ring is held in compression, the ring being arranged so as to distribute the stress pattern and also to remain within its elastic limit. Accordingly, as compression forces are maintained against opposite sides of the sealing ring, the opposite end edges of the ring tend to bow inwardly to increase the sealing effect between the ring margins and their recess seats prior to closure of the faces of the flange members. <IMAGE>
Patent GB-2045338-A (GB)
Title: An Umbrella Support
IPC: F16C11/10
Filed: 1979-12-24
Abstract: An umbrella support particularly suitable for the clamping of a golf umbrella to a golf buggy or trundler so that the umbrella is supported above the buggy and may be tilted to a desired orientation. A clamp 1, located on a handle shaft 8 of the golf buggy, is provided with a series of radial serrations 11, and a movable block 13 is provided with a series of co- operating radial serrations 14. The movable block 13 is slidable on a vertically orientated shaft 21 which is provided with a clamp 25 attached to an umbrella handle shaft 28. <IMAGE>
Patent GB-2046209-A (GB)
Title: Encapsulation of chemically active, biologically active materials and viable tissue
IPC: A61K35/12
Filed: 1980-03-17
Abstract: The process includes suspending finely divided chemically active or biologically active material or living tissue in an aqueous medium in which a gellable gum is dissolved. The aqueous suspension is then passed through a vibrating capillary tube (18) mounted centrally in the vortex (14) of a rapidly stirred solution containing a gel-producing solute. The suspension emerges as droplets which on contact with the stirred solution to form shape-retaining capsules enclosing the material. Subsequently the capsules are treated to form a permanent membrane coat which may be semipermeable, and the gel may be reliquefied. The process can be used to encapsulate e.g. islets of Langerhans or liver tissue with a culture medium to produce an artificial pancreas or a body fluid detoxifying system which may be introduced into the body. The permanent membrane can pass nutrients, amino acids, oxygen and hormones but blocks bacteria, lymphocytes and large molecules such as immunoglobulins. <IMAGE>
Patent GB-2051426-A (GB)
Title: Digital display system setting arrangement
IPC: G04G5/04
Filed: 1980-04-14
Abstract: A multistage counter 3, 5, 7, 10 normally counts seconds pulses from a frequency divider 2. Counters 5 and 7 are units and tens minutes counters and are set by shifting a counter 21 by button B to provide a "1" on output 21d. When a button A is then held down the seconds pulses pass through gates 17 and 22 and count the units counter 5 up to the numeral 0. A flip-flop 19, 26 is then set to disable gate 22 and enable gate 23 so that the units counter stays at the numeral 0 and the tens counter advances to the desired value, when button A is released, which resets the flip-flop. Button A is pressed again to count the units counter from the numeral 0 to the desired value. The invention in one embodiment simplifies the setting of a digital watch and reduces the time (number of pulses) needed to preset the units and tens of minutes counters. The invention can be extended to more than two counters and used for counters other than in clocks and watches.
Patent GB-2051610-A (GB)
Title: Cable having coated thereon electrically conductive film of polyester
IPC: H01B3/44
Filed: 1980-06-26
Abstract: A cable having coated thereon an electrically conductive film can be obtained by coating the outer surface of a polyvinyl chloride layer surrounding a cable with an electrically conductive powder coating material of 200  mu  or less in average particle size comprising 100 parts by weight of a thermoplastic polyester powder having a reduced viscosity ( eta sp/C) of 0.3 to 0.9 dl/g and a melting point of 90 DEG  to 170 DEG C and 30 to 130 parts by weight of electrically conductive carbon powder, and then melting the coating material to integrate the same. The electrically conductive film adheres well to the polyvinyl chloride layer and the cable has good oil resistance and appearance.
Patent GB-2083765-A (GB)
Title: Method and apparatus for formation of rotary or curved work piece e.g. a wheel
IPC: B60B3/02
Filed: 1980-09-16
Abstract: A flow forming apparatus and process applicable widely to the production of rotary or curved work piece profiles, is used, in a preferred application to produce a one piece wheel form from a preform section formed into a disc with optional spinning or flow turning to produce a complex wheel rim profile; allowing integral formation of bearing hub and drive shaft. A workpiece may be formed from an extruded section bent into a ring and welded, the ring profile being spun to form a wheel.
Patent GB-2068623-A (GB)
Title: Pick-up for an electrical musical instrument of the stringed type
IPC: G10H3/18
Filed: 1980-09-23
Abstract: Pick-up for stringed intrument includes two series connected coils (36,46) with a capacitor (38) connected in parallel with one of the coils (36) to shunt that coil to ground for other than bass frequencies whereby the bass frequency characteristic is enhanced. In one embodiment the shunted coil (36) is wound in one direction around a permanent magnet (30) with its north poles adjacent the strings and is located at a point one-third of the distance between the end of the neck connected to the body and the bridge so as to be positioned to receive bass frequencies better. The other coil (46) is wound in the opposite direction around an oppositely directed magnet (40) and is located at a point halfway between the first coil and the bridge. Thus a humbucking arrangement is provided. In a modification each coil is wound in opposite directions around a pair of oppositely directed magnets to provide enhanced humbucking. <IMAGE>
Patent GB-2061064-A (GB)
Title: Line extender signalling unit
IPC: H04M19/00
Filed: 1980-10-08
Abstract: A line extender signalling unit for applying boost voltages to telephone line conductors extending between a telephone exchange and a subscriber loop in order to aid applied d.c. signals is arranged to derive boost voltage supplies from a d.c. potential source, e.g. exchange battery, by way of an inverter, and a rectifier connected to the output of the inverter. An inductive reactance is provided between the inverter and the rectifier stage, in order to reduce the amplitude of the available d.c. boost voltage when the line extender signalling unit is connected to short telephone lines of correspondingly reduced resistance. Means are also provided for controlling the response of amplifying means of the line extender signalling unit to earth recalling, and coin impulsing signals.
Patent GB-2087532-A (GB)
Title: Heat exchangers
IPC: F28F9/22
Filed: 1980-11-18
Abstract: The heat exchanger has a housing defined by a casing 10 and end assemblies defined by a collar 11, 12 and a respective end cap 13, 14. Tubes 19 extend through the housing and communicate with an inlet 26 and an outlet 27 defined by the end caps 13 and 14 respectively. A radial inlet 28 and a radial outlet 29 are provided in the collars 11 and 12, respectively. Baffles 31 and 33 are of semi- cylindrical shape and are defined by extensions of the casing 10. These baffles 31 and 33 are spaced inwardly of the inlet 28 and outlet 29 respectively and define openings which are circumferentially spaced from the inlet 28 and outlet 29. The incoming stream of fluid impinges against the baffle 31 so that erosion effects are largely dissipated. The baffle 33 is provided to serve the same effect in the event that the flow is reversed so that the roles of the inlet 28 and outlet 29 are reversed. <IMAGE>
Patent GB-2061947-A (GB)
Title: Dibenzocycloheptenimines
IPC: C07C45/56
Filed: 1978-09-19
Abstract: This invention provides certain 5- substituted-10,11-dihydro-5H- dibenzo[a,d]cyclohepten-5,10-imines. The compounds have the formula:   <IMAGE> where R<1> and R<2> are hydrogen or certain hydrocarbon radicals, and R<3> and R<4> and H, halogen, alkoxy, CF3S-, -CN, -COOH or OH.
Patent GB-2090808-A (GB)
Title: Member for attaching a handle to a can
IPC: B65D25/32
Filed: 1981-01-13
Abstract: A member for attaching a strip- like handle to a can comprises a base portion (10) having a flange (11) bearing projections (15) by which it can be welded to the can, and an upstanding neck portion (12) provided at its outer end with a plurality of resilient tabs (14) forming a resilient head portion which can be deformed to be passed through a hole in a handle and then expanded to retain the handle. The member may be made from plastics or metal, and may be formed from a blank. <IMAGE>
Patent GB-2069569-A (GB)
Title: Sealing joints between tunnel linng segments
IPC: E21D11/38
Filed: 1981-01-17
Abstract: Seals for tunnel lining segments 1 consist of gaskets 2 of resilient material between the end faces of the segments 1 and a resilient cord 4 of circular or other cross section located in a correspondingly shaped groove in the side faces of the segments 1. <IMAGE>
Patent GB-2092162-A (GB)
Title: Asphaltic Sealant Material
IPC: C08L95/00
Filed: 1981-02-03
Abstract: An asphaltic sealant material comprising straight run bitumen, graded rock fines, clay powder, filler material and water.
Patent GB-2092758-A (GB)
Title: Process and Apparatus for Determining the Characteristics of a Drop of a Liquid Required for Calculating the Surface Tension of the Liquid
IPC: G01N13/02
Filed: 1981-02-06
Abstract: Method and apparatus for determining the characteristics of a drop of a liquid required for calculating the surface tension of the liquid, wherein the drop of the liquid is formed at the free end of a wire. The apparatus comprises a vessel 1, a wire 2 having a free end installed in the interior of the vessel 1, means 11, 12 for forming a drop of liquid at the free end of the wire 2, and means e.g. a camera and light source 9, 10 for determining certain characteristics of the drop of the liquid. Liquid may be introduced through pipe 11 to immerse the end of wire 2 while gas under pressure is introduced by pipe 12. When the liquid level is lowered below the end of wire 2, drops form thereon. Liquid may be supplied to the wire by a capillary tube or by raising the wire from a liquid bath. Several wires of different diameters carried by a rod supplied with liquid by a capillary tube may be used to obtain the optimum drop shape. The number of drops plus volume of drops falling from a wire in a certain time may be measured. <IMAGE>
Patent GB-2073055-A (GB)
Title: Multistage purification of liquids
IPC: B24B55/02
Filed: 1981-03-19
Abstract: An apparatus for multistage purification of liquids from magnetic and non-magnetic particles, and in particular cutting lubricants for machine tools. The apparatus consists of a magnetic separator, a non-magnetic filtering unit and, optionally, pressure filtering units. The magnetic separator is in the form of a number of rotary magnetic discs 3 placed on an axis common with the axis of the reservoir of the filtration unit. This reservoir is defined by two rotating wheels for the sides, and as a base an unrolling filtering band 5 which is pressed against the perimeter of the rotating wheels by a chain 7. The apparatus can be applied for use with for example grinding machines or boring machines for deep boring. <IMAGE>
Patent GB-2097191-A (GB)
Title: Power electric circuit switching device
IPC: H01H63/00
Filed: 1981-04-07
Abstract: On an insulating baseboard 1 having a central opening there are located contact devices 2 arranged in a circle thereon. A rotational electromechanical drive 46 is provided to rotate a selector 39, and an electromagnet 35 is mounted for reciprocating its hollow armature 37 to act on a selected lever or levers 14 to operate (respective) contacts 2. Each lever 14 also drives a respective pin 21 upward and due to a respective coil 30 having been energised a catch 23 is rotated by a spring 25 into a position to engage a roller 22 and retain the pin 21 which also operates auxiliary contact unit 28. When a coil 30 is deenergised its armature is driven by a biasing spring to rock the catch 23 away from the roller 22 and allow a spring 29 to drive the pin 21 and move the lever 14 to open the contacts of the respective device 2. <IMAGE>