baber/WOPTO huggingface dataset:
Patent GB-2040415-A (GB)
Title: Improvements in refractory lining units
IPC: F27D1/00
Filed: 1979-01-11
Abstract: Refractory units for lining furnace walls each comprise a core 1 wrapped with refractory fibrous material 3, 4, preferably blanket material in strip form. The core 1 serves as a carrier for the fibrous material and can be designed to give the unit desired handling and lining construction properties, of basic shape, rigidity and size not obtainable with the fibrous material alone, whilst the fibrous material provides the required refractory thermal insulation properties. Securing means 2 for mounting the units in place are carried, directly or indirectly by the core. The unit may have a backing plate 7, and the units may be used to secure a refractory fibre blanket to a wall. <IMAGE>
Patent GB-2012902-A (GB)
Title: Improvements in or Relating to Connectors for Connecting W.C. Pans to Soil Pipes
IPC: E03D11/16
Filed: 1979-01-30
Abstract: A connector for connecting a w.c. pan to a soil pipe has pan and pipe end portions adapted for spigoted engagement with the w.c. pan and the pipe respectively. The two said portions of the connector have respectively internal and external annular, generally radially-extending, flexible resilient sealing fins. The two portions of the connector have their lengthwise axes inclined at an angle of 166 DEG  to each other and may be made integral with each other or as separate elements connected together by a sealed joint permitting relative rotation of the two portions about a third axis inclined at 14 DEG  to the lengthwise axis of the pipe portion. In the latter case the lengthwise axis of the pan portion is parallel to but offset from the said third axis. <IMAGE>
Patent GB-2019056-A (GB)
Title: Controlled Direct Current Welding Apparatus
IPC: B23K9/10
Filed: 1979-03-23
Abstract: A direct current arc welder includes a thyristor-controlled rectifier bridge 1D to 3TH across the secondary of a supply transformer T, with a swinging reactor IL in series with the welding arc. The reactor has an airgap to prevent its saturation, and is designed to provide initially a large inductance and a finite unsaturated state at very high arc load currents. Control of the firing angle of the thyristors is according to voltage and current feedback with overriding emergency gate pulse suppression, after which the gating angle is automatically reset, and normal welding operation under feedback control gradually restored after suppression is withdrawn. <IMAGE>
Patent GB-2019943-A (GB)
Title: Gas turbine engine
IPC: F02K5/00
Filed: 1979-04-27
Abstract: The engine includes a rotor (100) for discharging combustion products from one or more combustion chambers (1) in a substantially tangential direction to rotate the rotor (100), which latter drives compressor (4) supplying air to the combustion chamber or chambers (1) and may also drive a power output shaft (2).The compressor can be of centrifugal centripetal or axial flow type. A fan 16 may be provided. Numerous modifications are described. <IMAGE>
Patent GB-2021949-A (GB)
Title: Inhibition of dental caries
IPC: A61Q11/00
Filed: 1979-05-30
Abstract: Cationic polysaccharides, e.g. quaternary ammonium galactomannans, are used for the inhibition of dental caries.
Patent GB-2026589-A (GB)
Title: A door handle retaining assembly
IPC: E05B3/06
Filed: 1979-06-13
Abstract: A door handle assembly comprises a support plate 10 mounting a pivotal operating member 11 including a shank 13 which projects through the support plate 10 and through an internal opening in a retaining member 23,25 said opening being shaped so that the retaining member 23,25 is movable angularly relative to the shank 13 between an operative position, in which the retaining member 23,25 is trapped by a groove or abutment 16 on the shank to prevent removal of the retaining member 23,25 from the shank 13 and withdrawal of the shank 13 through the aperture in the support plate 10, and an inoperative position, in which said wall is clear of the abutment so that the retaining member 23,25 can be removed from the shank 13 and the shank 13 can be removed from the support plate 10. Resilient means, conveniently defined by the retaining member 23, or a helical spring 27 urges the operating member 11 to a rest position, and a stop 21 limits angular movement of said operating member away from said rest position. <IMAGE>
Patent GB-2028664-A (GB)
Title: Double-walled filter mask
IPC: A41D13/11
Filed: 1979-08-20
Abstract: A disposable filter mask of high retaining power. comprises two plain filter layers 1 and 2, between which is placed a filter 3 which may be for example of wool or of a plastics foam, the edges of the face-masks being high- frequency welded, with a band 5 of plastics foam placed inside on the edge of the mask. <IMAGE>
Patent GB-2056232-A (GB)
Title: Fishing rod rest
IPC: A01K97/10
Filed: 1979-08-22
Abstract: A fishing rod rest has a V-shaped part 16 pivoted between arms 12, 13 of a fixed part 11 having a spike 10 for supporting the rest in the ground. A slot 19 for the line is at the root of the V. The rod rests in the V and the rest allows an automatic adjustment of fishing position. In an alternative form, the part 16 is 1 DIVIDED 2 V-shaped with a vertical face which can be placed at right angles to the flow of fast water. <IMAGE>
Patent GB-2034195-A (GB)
Title: Contacting solids and liquids
IPC: B01D11/02
Filed: 1979-09-21
Abstract: A solids/liquid contactor comprises a container through which the phases flow, a rotor therein, discs rotatable with the rotor dividing the container into a plurality of interconnected compartments and, in at least some of the compartments, receptacles extending between the discs to effect phase transfer. At least one of the compartments is free of receptacles or has receptacles arranged on a smaller diameter than in the other compartments to form a settling chamber. The contactor may be used in the extraction of oil-sands or purification of china clay. <IMAGE>
Patent GB-2035959-A (GB)
Title: Window carton
IPC: B65D5/50
Filed: 1979-10-02
Abstract: A window carton preferably including an integral or inserted internal fitment 61 for supporting the contents includes a window in the front and top walls 3, 11 and also in the rear wall 7 and a display panel or header card 15 upstanding from the rear wall 7. Preferably, the window in the front wall 3 merges with that in the top wall 11 and the window in the rear wall extends to the full height of the rear wall 7, and the header card 15 incorporates three layers of material between which edge portions of translucent sheet material overlying the windows are interleaved. Preferably, tuck flaps 49 connected to the rear wall 7 of the carton overlie locator flaps on the fitment 61. <IMAGE>
Patent GB-2033857-A (GB)
Title: Bogies or trucks for vehicles
IPC: B61F5/52
Filed: 1979-10-04
Abstract: The invention concerns modifying existing trucks, e.g. AAR railway trucks, to provide steering characteristics as described in Swiss Patent 609,929 (GB 1527270). The modification is carried out by providing each wheelset (100,101) with a steering arm (122,123) and interconnecting the steering arms by means of a flexible resilient coupling 124 which passes through an aperture in the truck bolster (104). Resilient pads are placed between each bearing adapter and its associated side frame jams in order to provide the necessary resiliently restrained movement of the wheelsets. <IMAGE>
Patent GB-2041193-A (GB)
Title: Gas turbine engine combustion apparatus
IPC: F23R3/04
Filed: 1980-02-01
Abstract: A combustion chamber of a gas turbine engine has an upstream variable rate diffuser for controlling the airflow into first and second annular ducts 34, 38 which partially surround the combustion chamber 23, primary and dilution air flowing into the combustion chamber from the first annular duct 34 and bypass air flowing into the combustion chamber from the second annular duct 38. The variable rate diffuser comprises a primary duct 12a and a downstream fence 16 located in a secondary duct 14 which has a bleed duct 18, the outlet of the primary duct being smaller in diameter than the inlet to the first annular duct 34. In operation by varying the bleed rate the rate of diffusion into the combustion chamber can be varied and if the bleed rate is reduced to zero at low power conditions, vitiated air can be drawn from the combustion chamber along the second annular duct 38 and returned to the combustion chamber at its upstream end to reduce emissions of NOx. <IMAGE>
Patent GB-2046179-A (GB)
Title: Lettering Stencil
IPC: B43L13/20
Filed: 1980-03-31
Abstract: A lettering stencil is described which has been produced by injection moulding and has a stencil plate formed with symbol recesses. In order to make the symbol recesses stand out better, each of them is surrounded by contrasting markings which are produced during the injection moulding so that a separate operation previously employed to provide such markings may be eliminated. The markings may take the form of depressions or elevations surrounding the recesses and may have roughened surfaces. <IMAGE>
Patent GB-2051314-A (GB)
Title: Mixing valve
IPC: F16K11/02
Filed: 1980-05-29
Abstract: A water mixing valve for use with a displacement type water heater a single control spindle 31 which carries a seat closure 32 and a piston 33 which progressively obstructs a cold water outlet 20 whilst progressively opening an outlet 25. Upon rotation of the spindle 31, the closure 32 opens to permit flow of cold water from the inlet 14 to the outlet 20 via passageways in the piston 33 and to the water heater via outlet 25. Displaced hot water is passed to the outlet 20 via a duct 23. <IMAGE>
Patent GB-2078153-A (GB)
Title: Improvements in or relating to cutting instruments
IPC: B26B5/00
Filed: 1980-06-18
Abstract: A knife comprises a blade 2 and a blade holder 1. The blade 2 is held within the blade holder 1 by means of a nut 23 and bolt 22 arrangement passing through a slot 20 in the blade holder 1 and through an aperture 21 in the blade 2. The blade 2 can be moved, by sliding the bolt 22 along the slot 20, from a safety position in which the blade is completely concealed to an in-use position. With the blade in the position of use, a spring 19 biasses the blade to a cutting position in which a corner of the blade is exposed. The knife can then be used to open, for example, boxes of tinned goods. If the blade strikes a tin within the box, the blade 2 will pivot about the bolt 22 and against the action of the spring 19 to a retracted position in which the blade is substantially concealed. <IMAGE>
Patent GB-2081767-A (GB)
Title: Skirting acting as cover for service ducting
IPC: H01R25/16
Filed: 1980-07-18
Abstract: A wall panel construction has a utility space below its lower edge for electrical and telephone cables (32) with cover members (10) consisting of a main body (36) having end sections (50) of yieldable material. The cover members are arranged end to end along the base of the wall panel with the yieldable end sections of adjacent cover members in a juxtaposed relationship with each other enabling cables to be extended from the utility space. <IMAGE>
Patent GB-2061548-A (GB)
Title: Optical Position Sensor
IPC: G01B11/27
Filed: 1980-10-01
Abstract: An optical position sensor comprises a light source (5) mounted on one body (1) and arranged to direct a beam of light onto a light sensor array (11) mounted on another body (3) to provide an indication of the relative positions of the two bodies; one or both of the light source (5) and sensor array (11) being associated with an optical system comprising a block (13, 23) of light transmissive material having a curved internally reflecting surface (19, 29). As described, the light source (5) is an infra red LED, the sensor (11) is a charge coupled device, and the blocks (13, 23) are glass or plastics with a silvered or interference coating on their curved surfaces (19, 29). To restrict light to small angles, the surfaces (21, 27) of the blocks may be fresnel surfaces. The arrangement may be used in aircraft to measure changes in the alignment of a wing mounted component of a weapon relative to the fuselage. <IMAGE>
Patent GB-2081563-A (GB)
Title: Grass cutting apparatus
IPC: A01D34/86
Filed: 1981-03-13
Abstract: Apparatus for cutting grass particularly below barriers 2 provided with support posts 3 comprises two independent cutting heads 10 and 11 close to the ground supported respectively by the lower parts of uprights 5 and 6 of a gantry 4 which overhangs the barrier 2 and which is able to move therealong. Means for moving the two heads away from each other are provided, so that on their side they will each skirt around a post 3 of the barrier 2 and move back towards each other into the normal working position in which their respective field of cut 29, 29a at least partially overlap. <IMAGE>
Patent GB-2095928-A (GB)
Title: Flyback converter
IPC: H02M3/335
Filed: 1981-04-01
Abstract: A flyback converter comprises a mains rectifier 17 providing a full wave unsmoothed rectified voltage to a pair of d.c. rails 18, 19 from a mains supply 10, 11. Rail 18 is connected to rail 19 through the primary winding 20 of a transformer 21, a transistor 22 and a resistor 23. The core of transformer 21 has 5 air gaps. The secondary winding 24 of transfer 21 is connected to an output rectifier 26. The transistor is driven on and off by a drive conduit 31. A slow rise circuit 30 which includes a capacitor is connected between the collector of transistor 22 and rail 19. In operation, the transistor 22 is switched on when the voltage across the capacitor in the slow rise circuit 30 is approximately zero thereby avoiding high transient currents in transistor 22. Transistor 22 is switched off when the current flowing therethrough reaches a predetermined fraction of a value dependent on the voltage between rails 18 and 19 so that the current drawn from the mains is approximately sinusoidal. The output rectifier 26 comprises a main diode and a main capacitor connected in series across the secondary winding 24, the main capacitor being connected to output rails 27,28, and an auxiliary diode and capacitor connected across the winding 24 and an auxiliary winding 25. The auxiliary capacitor discharges into rails 27,28 through an inductor and these auxiliary components prevent a voltage spike from applying across the slow rise circuit 30 when the transistor is switched off. <IMAGE>
Patent GB-2074511-A (GB)
Title: A retractable cover for a goods vehicle
IPC: B60J7/06
Filed: 1981-04-13
Abstract: A retractable cover for a vehicle comprises a tilt 6 supported on hoops 7 carried on guide rails 2 by carriages 5. Cable drums 12 and 13 are rotatable to circulate a cable having runs 15 and 16 which move the hoops 7 between a retracted position in which the load-carrying space 1 of the vehicle is uncovered and an extended position in which the load-carrying space is covered by the tilt. The cable runs 15, 16 are anchored to the cable drums 12, 13. <IMAGE>
Patent GB-2077042-A (GB)
Title: Interlocking of contactors
IPC: H01H9/26
Filed: 1981-04-13
Abstract: A removable casing 12'' containing at least two latches 13', 21' coupled to respective movable elements (e.g.- 11) of spaced apparatuses has at least one of the movable elements 11 mechanically associated with one of the latches 21 by a flexible transmission 30, 33. The latches 13, 21 are arranged with respect to each other so that if one is moved to a working position the other remains in a rest position and cannot be moved to a working position. <IMAGE>
Patent GB-2097253-A (GB)
Title: Seat cover
IPC: B68G7/05
Filed: 1981-08-19
Abstract: On an end portion of the surface material covering the upper surface of a cushioning material fixed on a vehicle seat frame there is provided by folding at least one connection piece at a position opposed to the outer periphery of the frame. Each connection piece is fixed to the outer peripheral side of the frame and the lower edge of the surface material extends to a position lower than the connection piece to form a cover surface to conceal the mounting portion of the connection piece to the frame. <IMAGE>
Patent GB-2092574-A (GB)
Title: Amide derivatives
IPC: C07C57/76
Filed: 1981-12-10
Abstract: The invention concerns novel amide derivatives of the formula:-   <IMAGE> wherein A is a direct link or alkylene of 1 to 9 carbon atoms and m is 0, or A is alkylene of 3 to 9 carbon atoms and m is 1, wherein R<1> is hydrogen, or acyl of up to 10 carbon atoms, wherein R<2> and R<3> are common amino acid substituents, especially such as together to form trimethylene, wherein R<4> and R<5>, which may be the same or different, each is hydrogen or alkyl of up to 5 carbon atoms; and wherein the benzene ring B is unsubstituted or bears one or more defined substituents, and S-S-dimers thereof, and salts thereof, which are inhibitors of angiotensin converting enzyme and may be used, for example, in the treatment of hypertension. The invention also provides pharmaceutical compositions of, and processes for the manufacture of, the novel amide derivatives.
Patent GB-2095071-A (GB)
Title: Video scrambling and descrambling means using frequency dependent delay means
IPC: H04N7/169
Filed: 1982-03-02
Abstract: A television video signal is scrambled by the application of a frequency dependent variable delay. The delay is applied by a frequency dependent device, e.g., a chirp filter (18). The application of the delay to the video signal, can be achieved either by a bandpass chirp filter or by low pass chirp filters 84 (Fig. 4, not shown) which are applied to both in- phase and quadrature components of the video signal. The audio signal, conventionally accompanying the video signal may have similar delay characteristics applied to it. The delay may be applied by a non-varying chirp filter; by a plurality of parallel connected chirp filters which are switched in and out of the scrambling circuit in accordance with predetermined controls; or the delay may be applied by a chirp filter which itself has one or more characteristics varied or variable in accordance with a controlled pattern. The signal is unscrambled (Fig. 5, not shown) at the receiver station by applying the inverse of the delay which was applied at the transmitting station. <IMAGE>
Patent GB-2096982-A (GB)
Title: Process for the recovery of lead and silver chlorides
IPC: C22B13/00
Filed: 1982-03-19
Abstract: A process for selectively leaching lead and silver chlorides from a sulfide ore residue in a rapid time comprises brine leaching the residue under pressure at a temperature above the normal boiling point of the solution, preferably above 100 DEG C. Specified leach solutions comprise chlorides of Na, K, Li, Ca and Mg and/or HCl. Modifications are leaching at the agglomeration temperature of sulfur when present in the residue to agglomerate the sulfur for ease of recovery, and flashing from leach temperature to ambient as a lead chloride crystallization recovery step to produce a large crop of lead chloride crystals per pass.
Patent GB-2113962-A (GB)
Title: Apparatus for applying herbicide to weeds
Inventor: ROACH JAMES O
IPC: A01M7/00
Filed: 1982-09-03
Abstract: A herbicide applicator is carried by a framework on the front of a tractor, the applicator comprising an elongated aluminium housing (80) having a strip of carpet (85) backed by aluminium mesh (84) at the forward side of the housing. A tank carried by the framework contains herbicide liquid material which is pumped by a centrifugal pump to a pipe containing spray nozzles in the housing, such nozzles spraying the back of the carpet strip (85) and being adjustable within limits in an upward and downward direction. Liquid from the pipe is recirculated by means of a conduit back to the tank. An injector (67) in the pipe removes liquid from the housing (80) at a rate commensurate with the amount of liquid ejected from the nozzle so that a back-up of liquid does not occur in the housing and its removal occurs automatically when the applicator is in use. <IMAGE>
Patent GB-2108260-A (GB)
Title: Space heating systems
Inventor: MORGAN FREDERICK RICHARD
IPC: F24D5/08
Filed: 1982-09-03
Abstract: A space heating system employs a length of ductwork which is divided longitudinally by heat-conducting septum (12) into flow and return passages (18,20), which form a circulation loop for flow of a hot gaseous fluid whereby heat exchange can take place between the hotter and cooler gases on each side of the septum (12). <IMAGE>
Patent GB-2128215-A (GB)
Title: Jointing device
Inventor: BOWERS GRAHAM
IPC: E04B2/72
Filed: 1982-10-05
Abstract: A jointing assembly for the construction of pre-fabricated environmentally controlled rooms in buildings includes a jointing device comprising a first profile strip 20 generally formed as a channel section with first and second opposing webs 21, 22 connected by a base 23 and having a lateral extension 24 at the free end of the first web and a second profile strip 30 of similar configuration 31, 32, 33, 34. The lateral extension 24 of the first profile 20 firmly abuts the base 33 of the second profile strip 30 so as to provide a gap 16 between the base 23 of the first profile strip 20 and the lateral extension 34 of the second profile strip 30 sufficient to receive and secure abutting flanges 17, 18 of adjoining structural members 11. <IMAGE>
Patent GB-2110885-A (GB)
Title: Fire protection for an electrical conduit
Inventor: O'BRIEN JAMES MARTIN
IPC: H02G3/04
Filed: 1982-10-18
Abstract: A flexible sachet of cross-linked polymeric material contains a non-flammable liquid e.g. water. A conduit for electrical cables 2, for example an electrical cable duct 1, contains a plurality of the flexible sachets 3 and 4 which are preferable formed from copolyethylene vinyl acetate. The sachets preferably have a high elongation to break at the boiling point of the liquid so that they can accommodate some evaporation of the liquid during a fire in the region of the conduit without bursting. The liquid may contain dye or pigment to enable detection of rupture or leakage of a sachet. Preferably a train of concaterated sachets is used. <IMAGE>
Patent GB-2109115-A (GB)
Title: Capacitive fluid-gauging systems
Inventor: COATES TERENCE JOHN
IPC: G01F23/26
Filed: 1982-10-29
Abstract: A fuel-gauging system has a capacitive probe (1) comprising an outer tubular electrode (10) and a coaxial inner electrode (11). The outer electrode is supplied with an alternating signal from an oscillator (3), the inner electrode being connected to a detector unit (4) via a resistor (20). The resistor is mounted between the electrodes about midway along the length of the probe, the resistor having a value that is selected to give a substantially linear output of the probe and is at least 0.1 of the reactance of the probe, preferably being about 0.3595 of the reactance. The resistor may be connected to a phase-sensitive detector that is controlled by a phase-shift circuit which receives the input signals to the probe and shifts their phase by 90 DEG , so as to produce an output that is in phase with the probe output. In this case the value of the resistor is preferably 0.2178 of the probe reactance. <IMAGE>
Patent GB-2110169-A (GB)
Title: Ram wing craft
Inventor: VOLKHAUSEN ROLF
IPC: B60V1/08
Filed: 1982-11-11
Abstract: In a ram wing craft, e.g. a catamaran, a ram chamber (or air scoop) is formed underneath the craft's wing 4 and between its side attachments 2, 3 so that it can be used above moving water and independently of harbour installations. Inflation bodies 14 are arranged on the underside of the side attachments, which in this embodiment are in the form of boundary hulls 12, 13, so that the craft can lift off the water. An air hose, which has downwardly-directed blow-out ports, can be arranged in or on the lower part of each inflation body 14. The craft may comprise a central hull with a side attachment at each side. Each side attachment can have two alternatively used inflation bodies with a knife-edge support between them. <IMAGE>