baber/WOPTO huggingface dataset:
Patent GB-2026240-A (GB)
Title: Semiconductor devices
IPC: H01L21/331
Filed: 1979-07-20
Abstract: In a semiconductor device a field effect transistor of either the lateral or vertical type has an island-shaped first region (1) which is bounded at the bottom by a first p-n junction (5) having a high breakdown voltage and laterally by a second p-n junction (6) having a low breakdown voltage. The first junction (5) is formed with an underlying second region (2) of opposite conductivity type to the first region (1) and can be reverse-biased by applying a voltage between the second region (2) and a contact region (4) which forms a non- rectifying contact with the region (1). The doping and thickness of the first region (1) are so small that, before breakdown at the second junction (6) occurs, the part of the region (1) situated between the second junction (6) and the contact region (4) is fully depleted by the depletion zone extending from the reverse-biased first junction (5). In Figure 2 this contact region (4) belongs to the drain electrode (D), but in other embodiments it belongs to the source electrode (S) or gate electrode (G). In Figure 2 the transistor has a junction gate (7) but in other embodiments it may have an insulated gate or a Schottky gate. Integrated complementary transistors each in accordance with the invention may be formed (Figure 3) using a double epitaxial layer structure for the first and second regions (1 and 2). <IMAGE>
Patent GB-2058550-A (GB)
Title: Key cabinets
IPC: A47G29/10
Filed: 1979-09-12
Abstract: A key cabinet, adapted for mounting on a wall, and with provision for hanging a number of keys within the cabinet upon the base thereof and on one or more hinged panels within the cabinet, wherein the hooks 23 for the keys are provided upon hook units 18 each of which comprises a plastic moulding in the form of a strip having the hooks 23 provided at spaced positions along the lower longitudinal edge of the strip and having an inverted channel 21 along the upper edge of the strip so that the plastic moulding can be mounted in position by engaging the channel section portion 21 over the lower edge of an elongated slot 26 cut in the base of the cabinet or similar slots cut in the hinged panel or panels 15 within the cabinet. An index card holder 24 is moulded integrally with the hook unit, there being a card holder for each hook 23. <IMAGE>
Patent GB-2059774-A (GB)
Title: Tubular sheath for inserting endoscopes
IPC: A61B1/273
Filed: 1979-10-10
Abstract: A device for facilitating insertion of endoscope 19 into the esophagus has an elongated tube 10 of flexible elastomer with a uniform outer diameter along most of its length and a solid tapered tip end 11 joined to the remainder of the tube by a hollow tapered neck portion 12. Tube 10 has an opening 14, behind the neck, of elongate configuration. The geometry of opening 14 and the flexibility of tube 10 are such that when distal end 18 of endoscope 19 is inserted into aperture 14, the end 18 is slightly bent and is received in wedged engagement within neck portion 12, and a portion immediately behind the end 18 of endoscope 19 is resiliently supported by a portion of the periphery of the opening 14 formed in tube 10. <IMAGE>
Patent GB-2039345-A (GB)
Title: An improvement in or relating to float valves
IPC: F16K24/06
Filed: 1979-11-16
Abstract: A float-operated cistern supply valve has an outlet passage 16 opening upwardly and communicating with a cap 46 which contains a valve element 50 and leads to a discharge outlet. When water is being discharged from the main valve the valve element 50 closes an opening 52 to atmosphere but if a sub-pressure develops in a supply main whilst the valve is open the valve element 50 moves to a position in which it acts as a check valve against the flow of water back into the main valve by re-opening the opening to atmosphere and closing the passage 16. <IMAGE>
Patent GB-2065206-A (GB)
Title: Double Door Arrangement
IPC: E06B7/16
Filed: 1979-11-29
Abstract: A double door arrangement comprises on one door 22, an elongate strip 32 providing a tongue 34 extending from the edge face 30, and on the other door 20, an elongate strip 40 mounted on a tongue 37 and affording a tongue 46 extending away from the edge face 28 and which, when the doors are closed, lies against the tongue 34 to provide a draught or flame barrier. The strip 40 is mounted for transverse sliding movement on the tongue 37 by pins 52 so that tongue 46 can contact either side of tongue 34 according to which of the two doors is moved to its closed portion first. <IMAGE>
Patent GB-2037115-A (GB)
Title: Transistor amplifiers
IPC: H03F1/30
Filed: 1979-12-05
Abstract: A power amplifier particularly for operating from a low voltage source, comprises, a drive transistor Tr10 feeding complementary push- pull transistors Tr6, Tr7, with multiple emitter transistors Tr8, Tr9 strapped as diodes providing biasing PD. The coupled emitters of Tr6, Tr7 are connected to a reference potential E1 or ground. The transistors Tr6, Tr7 are respectively coupled in an arrangement described as an "inverted Darlington" to complementary output transistors Tr4, Tr5. It is stated that thermal stability of the amplifier is produced by choosing the ratio of emitter areas of Tr8, Tr9. <IMAGE>
Patent GB-2048854-A (GB)
Title: Process for preparing carboxylic acid amides
IPC: C07D501/20
Filed: 1979-08-01
Abstract: A primary alcohol or an aldehyde is reacted with ammonia or a primary or secondary amine together with a molecular oxygen-containing gas in the presence of a palladium or platinum catalyst under oxidative condition to prepare a corresponding carboxylic acid amide with ease and in high yield.
Patent GB-2050079-A (GB)
Title: Insulation piercing contact element
IPC: H01R4/24
Filed: 1980-04-09
Abstract: Prior art contacts for automatic insertion without stripping of insulation have been fabricated of a good electrical conductor material which also has high strength and is resistant to creep relaxation. The prior art contacts have been expensive because of the cost of material, because available materials require designs which employ excessive amounts of material, and because the resulting designs are difficult to fabricate. The present invention provides a two-piece contact element in which the contacting function and the mechanical functions are provided by separate members. A contacting member 103, which comprises two insulation piercing slots, 101, 102, is formed of material selected only for electrical conductivity, and does not require as much of this relatively expensive material as do the prior art contact elements. Because less material is used, the design also permits savings in fabrication. Spring and retaining functions are provided by a member 100, which maintains the gripping action of the slots 101, 102, and is of a material chosen only for mechanical properties, typically steel. The design of both members provides for economical fabrication and assembly. <IMAGE>
Patent GB-2049795-A (GB)
Title: Vehicle Steering Lock
IPC: B60R25/021
Filed: 1980-05-01
Abstract: In a steering column lock, the lock barrel 8 operates the ignition switch (not shown) and lifts the locking bolt (also not shown) through a coupling element 21, 22, 26. This coupling element consists of a metal switch- drive shaft 21 carrying a plastics bolt- lifting cam 26. <IMAGE>
Patent GB-2054157-A (GB)
Title: Electro-magnetic Detector
IPC: H01F41/00
Filed: 1980-05-16
Abstract: An electro-magnetic detector for detecting an object in a non-contact manner e.g. in a turbine flowmeter has a core (3) round which is wound an electrically conductive wire (8) coated with an inorganic insulating substance e.g. silicates. The core is in an evacuated casing (1) with connections (12) for the wire passing therethrough. The inorganic insulation withstands high temperatures while the evacuated casing prevents ingress of moisture. <IMAGE>
Patent GB-2078915-A (GB)
Title: Charging coke ovens
IPC: C10B27/04
Filed: 1980-06-20
Abstract: Coal is charged into a coking chamber 1' through its extreme charging holes 9,10 while gases are withdrawn through its middle charging hole 14. At the same time the charging of a preceding chamber 1'' is being completed by charging coal through its middle charging hole 11 while withdrawing gases through that hole. The gases withdrawn are diluted with an inert diluent (comprising combustion products of gases previously withdrawn) constituting 15 to 20% of the total amount of gases withdrawn. <IMAGE>
Patent GB-2078485-A (GB)
Title: Method and apparatus for dividing tobacco leaf
IPC: A24C1/04
Filed: 1980-06-24
Abstract: In a method and apparatus for dividing a whole or part tobacco leaf into usable portions, for example for binders or wrappers, the tobacco leaf is spread on two or more contour knives, the cutting edges of which are pressed across the material of the tobacco leaf. The severed tobacco leaf portions are lifted out of the contour knives, and are deposited on a carrier (8) by means of a suction box conveyor (9). The leaf portions are subsequently scanned by a scanning apparatus (10) connected to electronic processing and control circuitry (11) which compares data obtained by scanning the leaf portions with standard data and approves or rejects the leaf portions accordingly. The circuitry controls pick-up means (12) to pick up the approved leaf portions from the carrier and to carry them into a bobbin (20). <IMAGE>
Patent GB-2058973-A (GB)
Title: Disc brake assembly
IPC: F16D65/18
Filed: 1980-09-01
Abstract: The assembly is for use in commercial vehicles having a compressed air supply and comprises a floating yoke (3) which houses an hydraulic force gearing system (9, 10, 18) for applying the brake pads (11) to the wheel disc (2) which system is actuated by supply of compressed air to a cylinder (4). A membrane (19) of the cylinder (4) acts via a thrust rod 17, a working piston (9), hydraulic fluid chamber (18) and brake piston (10) on one pad (11), the other pad (11) being actuated by reaction on yoke (3). Ratio of areas of pistons (9, 10) determines the gearing. The arrangement provides automatic wear adjustment by passage of hydraulic fluid from a reservoir (14) into chamber (18). <IMAGE>
Patent GB-2061775-A (GB)
Title: An electric motor and a method of manufacturing an electric motor
IPC: H02K15/14
Filed: 1980-10-14
Abstract: An electric motor comprises a stator (10) and an end cap (16). The stator has laminations (11) which form a circular outer stator surface having at least two diametrically opposed grooves (14) which extend axially. The grooves end at a distance from the respective stator end so that two radially directed abutments (15) are formed. The cap (16) is slidingly fitted over the stator end to a position in which the cap extends a distance over the grooves (14). In this relative position of stator and cap a tool is applied to depress metal from the cap into the grooves and against the abutments. To determine the distance to which the cap is slid on to the stator the cap has inwardly bent lugs (17) which abut the adjacent stator end surface. <IMAGE>
Patent GB-2071084-A (GB)
Title: Polycyclic compounds
IPC: C07C65/40
Filed: 1980-11-21
Abstract: Polycyclic compounds are manufactured by reacting a novel compound of the formula   <IMAGE>  wherein R<1> is lower alkoxycarbonyl or a group   <IMAGE> R<2> is hydrogen or hydroxy and  R<3> and R<4> together are oxo or protected oxo,  with an aldehyde of the formula   <IMAGE> wherein R<5> is lower alkyl, in the presence of an aromatic boronic acid and converting the resulting boronic acid ester into a compound of the formula   <IMAGE> wherein R<1> and R<2> are as defined above. The products may be subjected to further reactions to produce other compounds which are claimed per se.
Patent GB-2069485-A (GB)
Title: Rifamycin derivatives
IPC: C07D498/22
Filed: 1981-01-09
Abstract: Rifamycin derivatives of the formula I:-   <IMAGE>  and certain oxidation products thereof, wherein  Y = H or COCH3  R1 = linear or branched (C1-C7)alkyl or (C3-C4) alkenyl, R2 = linear or branched (C1-C7)alkyl, (C3-C4)alkenyl, (C2-C4)chloroalkyl, (C3-C7)cycloalkyl, cycloalkylalkyl (C3-C6 in the ring), phenyl, bornyl, (C7-C8)aralkyl, or (C7-C8)aralkyl monohalo-substituted in the aryl group. or NR1R2 = a (C5-C8) cyclic moiety, unsubstituted or mono-or di-substituted by CH3; 4-alkyl-1-piperazinyl, morpholino or 1,2,3,4- tetrahydroisoquinolinyl, have antibacterial properties and are obtained by reacting a 3-amino-4-deoxo-4-imino rifamycin S with a chloroformiminium chloride.
Patent GB-2069391-A (GB)
Title: Forming metal articles
IPC: B21D26/055
Filed: 1981-02-12
Abstract: A method of forming metal articles comprises placing a pair of sheet members 1, 2 of super- plastically deformable material in opposed, spaced apart relationship, (conveniently by means of a reinforced member 3), heating them to the temperature range within which superplastic deformation can take place, and urging portions of the sheets toward each other until they lie one against the other so that they may be joined together as diffusion bonding, brazing, mechanical locking, and laser bonding etc. <IMAGE>
Patent GB-2073166-A (GB)
Title: Apparatus for the production of biogas
IPC: C02F3/28
Filed: 1981-03-25
Abstract: An apparatus for producing biogas includes a fermenting tank (1) with conveying members for removal of surface scum and/or sediment. A downwardly extending baffle wall (15)  has its lowest edge immersed in the scum and a first conveying member (16) moves across that wall and downwardly into the top of the scum, carrying scum to below the wall and pushing it toward the outlet (7). A second conveyor (16a) scoops sediment and lifts it to the outlet where it is dumped. <IMAGE>
Patent GB-2099059-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C9/08
Filed: 1981-05-19
Abstract: A folding ladder comprises two parallel channel-sectioned strings 10, 11 between which extends a plurality of parallel rungs 12 spaced apart along the length of the ladder, the ends of the rungs being pivotally connected to the respective strings in such manner that the ladder may be folded with a lozenging action by bringing the strings 10, 11 together into nested relation, the rungs 12 pivoting relatively to the strings to positions where they extend longitudinally of the strings or at a small angle thereto. One string 11 of the ladder may be fixed to a vertical surface, the arrangement being such that the lower end of the other string 10 is brought into engagement with the ground as the ladder is unfolded. <IMAGE>
Patent GB-2077682-A (GB)
Title: An improved packaging machine
IPC: B65B23/12
Filed: 1981-06-04
Abstract: Slugs of biscuits 11 standing on edge are fed along a deadplate towards wrapping mechanism by the flights 12 of an infeed flight conveyor. The deadplate has a hole 14 and the ends of full length slugs are nipped by lateral spring loaded members 15 as they travel over the hole. Slugs which are too short to be nipped by these members fall through the hole and are prevented from passing on to the wrapping mechanism. <IMAGE>
Patent GB-2103327-A (GB)
Title: Fixing means for hollow elongate members
Inventor: EMSLEY ROGER
IPC: E06B3/968
Filed: 1981-07-30
Abstract: A device for providing a fixture in a hollow elongate member of substantially uniform cross-section, such as an extruded door frame member, comprises a fixing block 15 having means for securing a connecting screw 26 thereto and of a cross-section such that it is a sliding fit within the elongate member to which it is to be applied, the fixing block 15 being formed with outwardly extending projections 19 which are resiliently deflectable so as to snap into corresponding holes 20 in a side wall of the elongate member, when in alignment therewith, and thereby retain the fixing block within said member. <IMAGE>
Patent GB-2104741-A (GB)
Title: Monitoring electrical indicators
Inventor: MORGAN GEORGE
IPC: B60Q1/38
Filed: 1981-08-20
Abstract: An automobile direction indicator unit has lamp circuits (12, 14) connected with an oscillating circuit (T2, T3) to control (RLC1) flashing of the lamps. A branch circuit (20) retains the lamps in circuit during the OFF periods but the current passing is insufficient to effect illumination. The circuit (20) is short circuited during ON periods. When lamp failure occurs, increased voltage to transistor (T1) is sensed during the next OFF period, the transistor (T1) is switched on and the flashing rate is doubled. As no resistance is inserted in the lamp circuit (12, 14) during ON periods the lamp circuit (12, 14) is always supplied with full voltage. <IMAGE>
Patent GB-2108773-A (GB)
Title: A tool for removing insulation from cables
Inventor: UNDIN HANS
IPC: H02G1/12
Filed: 1981-10-13
Abstract: The tool has a housing (18) for a blade (5), the housing being rotatably mounted in a body (17) of the tool and having a supporting surface (23) for the cable to be stripped of insulation, the surface having a central recess (23a) which provides better support for the cable. A holder stirrup (2) presses the cable on to the blade (5), and has a tapered, end portion (2a) serving for breaking off a cut portion of insulation. The tool is particularly suitable for removing insulation from cables of large diameter, e.g. diameter between 6 and 30 mm. The tool is first used to make a peripheral cut through the insulation (Fig. 7 not shown) and then the blade (5) rotated vertically through 90 DEG  by a handle (4) to make a longitudinal cut (Fig. 8 not shown). A spare blade may be stored (16c) in the bottom of the tool (Fig. 2 not shown). <IMAGE>
Patent GB-2088685-A (GB)
Title: Blade
IPC: F02B1/04
Filed: 1981-11-30
Abstract: A blade for lawn mowers and the like comprises a relatively flat body of hardened or toughened rubber-like material selected from vulcanized rubber and or synthetic rubber or resilient material selected from synthetic plastics or resins. The rubber-like material of the body may be reinforced with a layer or layers of woven or unwoven fibrous or fabric material. The body may include a metal insert (11). The ends of the blade may be provided with twisted portions (19, 20) to serve as updraught means. <IMAGE>
Patent GB-2090884-A (GB)
Title: Dispensing device for flushing cistern
IPC: E03D9/02
Filed: 1981-12-17
Abstract: A dispensing device adapted to be suspended in a flushing cistern to dispense quantities of solution of a treatment material each time the cistern is emptied, comprises an upper chamber 18 having inlet apertures 38 and a lower chamber 19 containing a block of treatment material and having an outlet 36. The chambers 18 and 19 are connected by a first conduit 20. A second conduit 22 leads from the lower chamber to the outlet 36. The conduits 20 and 22 are so configured and arranged that air locks are formed at their uppermost points each time the cistern is filled and the device fully immersed, these air locks preventing migration of dissolved material from chamber 19 directly or indirectly to the surrounding water in the cistern. <IMAGE>
Patent GB-2093300-A (GB)
Title: Multi-range measuring apparatus with automatic range changing
IPC: H03M1/00
Filed: 1982-02-15
Abstract: In a component meter, automatic range changing is carried out on the basis of exponent values obtained from an analogue-to-digital converter 26. A microprocessor 19 calculates parameters in mantissa and exponent form and carries out tests to determine the correct range. The microprocessor then uses range selection means 23 to switch in the correct standard resistor (12 to 15) for the optimum range. A phase sensitive detector 11 employing four high gain amplifiers is employed to pass in-phase and quadrature signals to the converter 26.   <IMAGE>
Patent GB-2096029-A (GB)
Title: Apparatus for sucking away swarf at the boring location of a boring tool
IPC: B23Q11/00
Filed: 1982-04-05
Abstract: Swarf or dust generated at the boring location of a drill 2 is sucked away through a mouth 12 of a suction member 10 and a connection 13, while the member 10 is located coaxially with a drill chuck 1 by a stressed compression spring 8 reacting on an annulus 11 on which a mounting ring 3, detachably fixed to the chuck 1 rotates. As the drilling proceeds the spring 8 is compressed and the suction action is enhanced by a tapered inside surface 15 of the suction member 10. <IMAGE>
Patent GB-2117704-A (GB)
Title: Greeting card
Inventor: JULIUS ANTHONY LEON
IPC: B42D15/04
Filed: 1982-04-06
Abstract: A greeting card which is arranged to spring from a position in which two substantially planar portions of the card are held adjacent to each other by an envelope containing the card, into a position in which one of these portions protrudes from the other and the latter is folded in such a way as to enable it to stand upright on a flat surface, when the card is removed from the envelope.
Patent GB-2098588-A (GB)
Title: Bottle filling machines
IPC: B67C3/16
Filed: 1982-05-10
Abstract: A bottle filling machine is disclosed in which a bottle engaging a seal 38 around a nozzle 36 is filled with liquid 16 from a reservoir 10 through a valve 32 connected to a diaphragm 12 and opened by application of suction to space 20. In order to fill the bottle to a predetermined level and prevent dripping of the nozzle after removal of the bottle, a suction tube 40 extends from an adjustable level below the nozzle 36, through the nozzle 36 and the valve 32, and (in one embodiment) to adjacent the top of the reservoir. The bottle is overfilled, and then liquid is drawn up the suction tube 40 by a partial vacuum in the reservoir 10, so that the liquid level in the bottle descends to the bottom of the suction tube 40 and so that the nozzle is emptied of liquid. The bottle is then removed. In another embodiment the excess liquid is drawn off by the suction tube to a separate receptacle and is subsequently returned to the reservoir 10. <IMAGE>
Patent GB-2100359-A (GB)
Title: Variable volume radial turbine
IPC: F01D17/14
Filed: 1982-05-26
Abstract: A shaft (10) having a shaped tip (20) or groove formed thereon is projectable or rotatable to deflect the gases flowing in the scroll (12) and variably direct the gases into the turbine impeller (22) in a manner which induces an effective change in the capacity of the turbine. <IMAGE>
Patent GB-2125936-A (GB)
Title: Distributing valve
Inventor: KNIGHT VIRGINIA MARCIA
IPC: F16K11/052
Filed: 1982-08-04
Abstract: The apparatus consists of a casing 1 and cover 2. The casing 1 contains three apertures; an inlet 3 and two outlets 4. Fluid is supplied under pressure to the inlet 3 and by virtue of an internal self-powered mechanism the fluid is distributed sequentially and alternately to each of the outputs 4. The sequential operation of the outlets is controlled by a flap valve 6 pivoted at 5, which can rest in position 6A or 6B by virtue of differential pressure and thereby sequentially block one or other outlet by seating on the faces of those outlets. The flap valve 6 is activated by a mechanism whereby fluid passing into the inlet strikes and rotates an impeller 7 which, by virtue of suitable gearing, activates a flip-flop arrangement to control the flap valve. <IMAGE>
Patent GB-2116914-A (GB)
Title: An element for use in the formation of rendered structural features
Inventor: MOLYNEUX GEORGE
IPC: E01C11/10
Filed: 1982-09-25
Abstract: The invention provides an extruded strip element 82 for use in the forming of a rendered structural feature divided into a plurality of areas. The element comprises a channel with a substantially circular cross-section excrescence along the inside of one of its flanges. The element is embedded in a rendering leaving its top edge exposed and the excrescence is used in securing the element in the rendering and/or in securing two such elements 82,80 to each other, e.g. by means of a nail 83. <IMAGE>