baber/WOPTO huggingface dataset:
Patent GB-2007895-A (GB)
Title: Remote control systems and transmitters and receivers therefor
IPC: A63H19/24
Filed: 1978-10-13
Abstract: A remote control system for controlling electrical devices via their power supply lines comprises a transmitter for sending control signals in time division multiplexed fashion to a number of receivers, each of which can identify the associated time slot in the multiplexing scheme. Each time slot corresponds to an integral number of half cycles of the supply wave form and both binary and proportional control information may be conveyed by the position of the control signals within their time slots. <IMAGE>
Patent GB-2032689-A (GB)
Title: Multilayer capacitors
IPC: H01G4/30
Filed: 1978-10-24
Abstract: A multilayer ceramic capacitor has electrode patterns (7, 7') which are parallel sided and which completely cross one another to form an area (11) of overlap shaped like a parallelogram. This minimises the risk of misregistration of the ceramics of the stack affecting the nominal capacitance value. <IMAGE>
Patent GB-2010153-A (GB)
Title: Improvements in the manufacture of frogs for rail equipment
IPC: B22C9/22
Filed: 1978-12-04
Abstract: In the casting of a rail frog having lower recesses, a mould cavity for the metal frog is formed by two impressions formed in moulding sand in bottom and top frames 24, 25, the impressions defining the external shape of the frog and the internal shape of the recesses of the frog. The impression of the external shape of the frog is formed by a pattern in the bottom frame 24, a core box 27 defining the lower recesses is then placed in this impression, the core box 27 being in a single piece and having a wall thickness less than the wall thickness of the frog. The core box 27 is filled with sand and the top frame 25 is then placed on the bottom frame 24 and filled with sand. Finally the frames are separated, the core box 27 is removed, and the frames are reassembled and provide the mould cavity for receiving the metal to be cast. <IMAGE>
Patent GB-2010596-A (GB)
Title: Magnetic couplings in gas meters
IPC: G01F15/06
Filed: 1978-12-11
Abstract: A gas meter casing 30 of magnetic material has a magnetic coupling 38, 41 for transferring drive from the working parts (not shown) to an index mechanism 45 outside the casing. A disc 31 of non-magnetic material is welded or otherwise secured into the casing to allow the magnetic coupling to work. A bearing member 33 is inserted into the centre of the disc to support one end of a shaft 34 carrying magnet 38, while magnet 41 is mounted on the index mechanism which in turn is located on mounting blocks 47 welded to the casing. The bearing member 33 has a chamfered entry guiding the end of the shaft into the bearing area. <IMAGE>
Patent GB-2015817-A (GB)
Title: Television camera tube
IPC: H01J31/38
Filed: 1979-02-09
Abstract: The undesired production of fast electrons in known camera tubes which affects beam current inertia can be reduced further and dynamic beam current control may take place with a lower cathode load and with a smaller control signal by using a camera tube having a diode electron gun comprising, centred along an axis (5), successively a cathode (10), a first anode electrode (11) having an aperture which has a diameter at least twice as large as the diameter of an aperture (15) in a second anode electrode (12). The aperture (13) in the first electrode (11) is so dimensioned that a lens field formed between the first (11) and the second (12) electrodes has substantially no influence on the cathode emission. A positive voltage of between a few and a few tens of volts, typically 10 volts, is applied to the first electrode (11), and a positive voltage which is at least ten times higher, and which is at least 100 volts, typically 300 volts, is applied to the second electrode (12). Dimensions are specified, and sources of the fast electrons exemplified. <IMAGE>
Patent GB-2042022-A (GB)
Title: Method of and apparatus for surveying a mining installation
IPC: E21D23/00
Filed: 1979-02-13
Abstract: A number of mine roof supports (1) along a coal face are provided with radar sensors (18) for sensing coal face distance by transmitting and receiving an electro- magnetic signal to and from, respectively, the coal face. The signals are processed by a processor (20) to determine face distance along the face. <IMAGE>
Patent GB-2018275-A (GB)
Title: Dyestuffs
IPC: C09B29/08
Filed: 1979-04-23
Abstract: Disperse monoazo dyestuffs having the formula:   <IMAGE> wherein X and Y each independently represent a halogen atom, or one of X and Y represents a halogen atom and the other represents a hydrogen atom, Z represents a halogen atom and n is an integer from 2 to 8; a process for the manufacture of these dyestuffs and their use for the colouration of synthetic textile materials.
Patent GB-2020270-A (GB)
Title: A process for the production of substituted pyridines
IPC: C07D213/06
Filed: 1979-04-25
Abstract: A process for the production of a pyridine which is aromatically or heteroatomatically substituted in the 3-position comprises reacting an aliphatic oxo compound which contains an unsaturated carbon bond adjacent o the oxo group with an aliphatic-aromatic or aliphatic- heteroaromatic aldehyde and with ammonia in the gas phase in the presence of a dehydrating and dehydrogenating catalyst at a temperature in the range of from 250 to 550 DEG C.
Patent GB-2021940-A (GB)
Title: Chair seat column
IPC: A47C3/20
Filed: 1979-05-14
Abstract: A chair having a seat column (3) features an arrangement for such an attachment of the lower end portion of said column in a downwardly tapering socket hole (4') in a base (4) that the height of the column may be preselected, when the column is wedged to the base in assembling the chair. The preselection is made possible by using at least one separate wedge member (11) which at the driving in of the column (3) into the socket hole (4') of the base (4) is retained in one of at least two axially spaced operative positions relative to the column defined by surface irregularities (8, 9, 10) on or in the circumferential surface of the column engaging with the wedge member.   <IMAGE>
Patent GB-2032010-A (GB)
Title: A slide shoe for hydrostatic piston machines
IPC: F04B1/107
Filed: 1979-08-08
Abstract: A slide shoe 10 for a hydrostatic piston machine is pivotally connected to a delivery piston 12 of the machine. In use, hydrostatic pressure fields are built up on the slide sole 14 at groove- like recesses 21, 22, by pressure medium from the high pressure side of the machine with a throttling effect through a bore 16 extending in the piston. The recesses consist of at least two grooves lying behind one another on both sides of the centre and extending transversely with respect to the direction of movement of the slide shoe, which grooves are in communication with the bore and do not touch the edge of the slide shoe. <IMAGE>
Patent GB-2031594-A (GB)
Title: Monitoring forces in a load- handling boom
IPC: G01L1/22
Filed: 1979-09-17
Abstract: An articulated handling boom 10 has a jib BII pivoted at B to a hoisting arm BI which in turn is pivoted at O to a chassis 11. The pivots B, O form force- sensors carrying strain gauges which are mounted so as to be sensitive only to shearing strains, and which are appropriately connected in the form of Wheatstone bridge circuits. The gauges are arranged to measure not the effects of a force FV in the plane of the mechanism but the bending of the jib BII and the bending and torsion of the arm BI which result from a lateral force at C. The strain gauges on pivot B are in planes parallel to the plane containing the axes of B and C. <IMAGE>
Patent GB-2032989-A (GB)
Title: Athletic playing surface
IPC: E01C13/08
Filed: 1979-09-28
Abstract: An resilient athletic playing surface comprises an upper surface 13 of a sheet material that has a low mass per unit area and is stiffly resilient. The upper surface is supported on either discrete "bumper pads" 18 of a resilient material, or preferably a combination of horizontal, spaced apart supports 20 and bumper pads. The composite structure rests on a conventional surface such as a concrete base. The composite surface is characterised by a low effective vertical mass, a large vertical compliance and a mechanical response that is substantially independant of the point of the impact on the surface and the area of the foot contact. <IMAGE>
Patent GB-2069579-A (GB)
Title: Anti-slip and securing accessory for ladders
IPC: E06C1/34
Filed: 1980-02-07
Abstract: A securing accessory for a ladder comprises two assemblies each consisting of a length of rope or line not less than twice the length of the ladder when in use, means provided at one end of each rope for securing the end to the ladder near its upper end, free-running snap hook means on each rope, and locking means for securing each rope to the ladder near its lower end, the locking means being such that the rope may be pulled freely from below but will be held firmly against pulling from above. <IMAGE>
Patent GB-2070094-A (GB)
Title: Jointing techniques for concrete members
IPC: E04B1/16
Filed: 1980-02-15
Abstract: A method of making a structural joint between two cast concrete members using a strip of spaced reinforcement links (2) with a length of each link (2) embedded in a block (6) of a non-concrete material, in which a first concrete member (10, 20) is cast incorporating the strip with the block (6) of non-concrete material exposed at a surface thereof and the links (2) partially embedded in the concrete; and the non-concrete material is removed to expose said lengths of each link, about which a second concrete member (22) is cast. In order to improve the joint between the members (10, 20, 22) the strip is formed with a single continuous length of each link (2) embedded in the block (6) of non-concrete material and at least one connecting member (18) is coupled to the said lengths of link (2) exposed after the non-concrete material is removed, before the second concrete member (22) is cast around the connecting member (18) and links (2).
Patent GB-2043613-A (GB)
Title: Processing ore fines for reducing furnaces in direct-reduction iron- making
IPC: C22B1/24
Filed: 1980-02-18
Abstract: Ore fines separated from the lump of pelletized feed to a direct-reduction iron-making furnace are mixed with at least part of the iron fines from the reduction process and with water, kneaded and formed into agglomerates. The agglomerates are allowed to undergo oxidation, which enables the hardened agglomerates to be charged into the furnace together with the original feed material.
Patent GB-2045736-A (GB)
Title: Preparation of magnesium chloride
IPC: C01F5/34
Filed: 1980-03-11
Abstract: Anhydrous MgCl2 and KCl is recovered from carnallite mineral ore by (a) dissolving the one in the minimum amount of water required to obtain complete solubility (b) filtering out any residual precipitates (c) adding ethylene glycol to the filtrate of (b) to solubilize all MgCl2 present in the filtrate, (d) dehydrating the resultant solution of step (c) by distillation to obtain an anhydrous solution of MgCl2 in ethylene glycol and an anhydrous KCl precipitate and removing the precipitate (e) adding anhydrous NH3 to the MgCl2 solution forming MgCl2.6NH3 precipitate filtering off the precipitate, washing with a low molecular weight solvent for ethylene glycol, the solvent having previous been saturated with anhydrous NH3 and (f) heating the washed precipitate to drive off NH3. Alternatively the MgCl2 and K2SO4 are recovered by (a) dissolving a mixed double salt of Mg and K sulphates in water at 50 to 90 DEG C and filtering off the residue (b) adding KCl to the filtrate, (c) heating solution of (b) at 50 to 90 DEG C, (d) adding ethylene glycol to resultant solution from (c) to fully dissolve all MgCl2 and removing precipitated K2SO4 (e) distilling water from the solution of (d) to form an anhydrous MgCl2 solution in ethylene glycol and a precipitate of K2SO4 and removing the precipitate (f) combining the K2SO4 precipitate of steps (d) and (e) and washing with water and (g) treating the anhydrous solution of MgCl2 in ethylene glycol as in steps (e) and (f) of the first embodiment.
Patent GB-2089184-A (GB)
Title: Plant support stick with eye protector
IPC: A01G9/12
Filed: 1980-07-11
Abstract: To prevent damage to the eye, an eye protector is positioned over the upper end of a plant support stick. The protector may comprise a spherical or disc head with a tube projecting therefrom to receive the stick. The head may be solid or hollow or filled with cushioning material.
Patent GB-2056364-A (GB)
Title: Method of joining pieces of sheet material
IPC: C09J5/00
Filed: 1980-07-22
Abstract: Pieces of rubber or other polymeric or polymer coated flexible sheet material 30, 32 for forming connected tube sections, e.g. of an inflatable structure, have to be joined along curved edges 34, 36. For this a tube 14 of material is sleeved, as a flattened tube, onto a laminar former 18 and the margins 40, 42 of the sheets to be joined are bonded to opposite faces of the flattened tube 14, after which the former 18 is removed and the tube 14 is cut along its edge further from the join line, and opened out. Preferably the tube 14 is formed by temporarily joining opposite edges of a tape 12, notably by stitching 16 which is later cut out or ripped out to open out the tube 14. The channel 50, Fig. 6, may be filled with a hot melt composition or a rubber strip. If thermoplastics are to be joined, radio frequency welding may be used with the metal former 18 acting as an electrode. <IMAGE>
Patent GB-2081279-A (GB)
Title: Lasting shoes with hot melt adhesives
IPC: C09J167/00
Filed: 1980-07-26
Abstract: Hot melt adhesives for lasting shoes comprise a minor amount of a high molecular weight linear aliphatic hydrocarbon polymer and a major amount of a substantially linear copolyester having units in its molecular chain derived from aliphatic diol, terephthalic acid, and one or more aliphatic or aromatic dicarboxylic acids including a dicarboxylic acid having an aliphatic chain of not less than five carbon atoms. The specification describes lasting shoes with a hot melt adhesive comprising a polyethylene having a melt flow index preferably in the range 5 to 200 and a copolyester having units derived from butane diol, dimerized fatty oil acid, terephthalic acid, and isophthalic acid.
Patent GB-2081558-A (GB)
Title: Anti-mist film
IPC: H05B3/84
Filed: 1980-07-31
Abstract: An anti-mist film, especially for applying to a vehicle window, comprises a transparent substrate (1) and a plurality of electrically conductive heating lines (2) integrally preformed on the substrate (1). The substrate (1) may be coloured. The film is adhered to a window by a self-adhesive agent (7) with its edges extending over bars (3) adhered to the window, a conductive tie rod (5) being inserted at each edge to make connection with the heating lines (2). <IMAGE>
Patent GB-2060746-A (GB)
Title: Fire door with expanded Perlite panel
IPC: E06B5/16
Filed: 1980-09-12
Abstract: A fire containment door includes a thermal insulating member constituted by bonded expanded Perlite particles as an integral part of the door. The door may consist of stiles and rails with rebated expanded Perlite panels faced with plywood and edged with hard-wood strips.
Patent GB-2061072-A (GB)
Title: Video disc player
IPC: G11B19/04
Filed: 1980-10-13
Abstract: A video disc reproducing device haying an automatic gain control amplifier (26) followed by an equalizer (18) which in turn is connected to video and audio filters (10 and 12) respectively. Feedback through a detector (20) from the output of the video filter controls the frequency response of the equalizer while feedback from the audio frequency filter controls the gain of the amplifier (26). The invention also relates to the detection of the presence of recorded data and to a tracking servo. This uses two auxiliary beams separate from the read beam. The servo is inoperative when an audio signal is absent. <IMAGE>
Patent GB-2070811-A (GB)
Title: An electronic watch
IPC: G04G99/00
Filed: 1980-12-03
Abstract: The case 1 of the watch has ribbed zones 3, 4 and 5 of different structures which can supply distinctive mechanical vibrations when they are scraped by the user of the watch, e.g. using his finger nail. A transducer inside the case transforms these acoustic vibrations into an electric signal. An electronic circuit comprising a pulse shaper, counters, a register and a comparator allows the message in the form of a specific number of pulses generated by the scraping of one or the other of the ribbed zones 3, 4 and 5 to be decoded and one or the other of the functions appearing on the display 2 of the watch to be selected or controlled. The transducer may be piezo-electric or piezo-resistive. In Figures 4, 5 it is a thin film of piezoo-electric material such as polyvinylidenefluoride (PVDF) metallized on both faces and adhesively bonded to the watch case. A discriminator determines from which zone the electrical signal originates by counting the number of pulses therein, and delivers a function selecting or controlling signal accordingly. The application to the setting of a timepiece to the correct time or to presetting an alarm time, is suggested. Water-tightness of the timepiece is enhanced. <IMAGE>
Patent GB-2067967-A (GB)
Title: Improvements in or relating to a conveyor belt chain
IPC: B65G17/38
Filed: 1981-01-16
Abstract: A conveyor belt chain comprises a plurality of seratim links 15 each comprising a substantially unitary link body having a pair of longitudinally spaced connector portions 34, 38, and a support portion therebetween, the support portion including a conveyor engaging surface 17, and a securing portion 30 for securing the link body to the conveyor, the connector portions 34, 38 being mutually cooperable for pivotal connection whereby the links may be interconnected to form a chain. Preferably the connector portions 34, 38 are in the form of a complementary bar and hook which can move relative to one another to allow for stretching of the conveyor belt.   <IMAGE>
Patent GB-2091843-A (GB)
Title: Flexible shaft coupling
IPC: F16D3/77
Filed: 1981-01-26
Abstract: A flexible shaft coupling comprises first and second rotary hubs (5, 5') securable by keys (8, 8') to ends of driving (9) and driven (9') shafts, respectively. Central circular portions of abutting pairs of flexible, dished metal foils are secured to the hubs (5, 5') by bolts (7, 7'). Cylindrical rims of the foils are secured to the opposite ends of a surrounding torque transmission sleeve (10) by further bolts (7, 7'). The foils of each pair are formed with obtuse scalene triangular slots (2, 2') which incline in opposite directions and are tangential to the central circular portion of that foil. The slots of the respective foils overlap one another. Drive can be transmitted when the axes of the shafts are parallel but spaced from one another, are relatively inclined and when they are axially relatively movable. The slotted formation of the foils allows high torque to be transmitted without significant torsional distortion thereof and the couplings will transmit drive without significant vibration and incorrect bearing loading. <IMAGE>
Patent GB-2093772-A (GB)
Title: Card locking device for time recorder
IPC: G07C1/06
Filed: 1981-02-03
Abstract: A card locking device incorporated in a time recorder which is constructed in such a manner that while a printer, e.g. a wire type dot matrix type printer 19, 19a, performs its printing operation such as time printing or the like on a time card inserted into a card guide passage 4, a locking lever 31 is effective in clamping the inserted time card in the card guide passage 4 for the purpose of preventing it from being removed therefrom and on completion of the intended printing operation tie locking lever is disengaged from the inserted time card whereby it is ready to be removed. <IMAGE>
Patent GB-2071197-A (GB)
Title: Anti-theft lock
IPC: E05B47/00
Filed: 1981-02-10
Abstract: A lock cylinder (1) is fast in rotation with a mild steel disc (6) which can slide axially in relation to the cylinder (1), and the lock body (3) carries an electric coil (8) concentric with the cylinder (1) and capable of being supplied by a current source in such manner as to attract the said disc (6) against the action of a return spring (9) which returns the disc (6) towards a position in which a locking member (12) of the disc (6) cooperates with a complementary member (11) fast with the body (3), in the locking angular position of the cylinder (1). <IMAGE>
Patent GB-2072813-A (GB)
Title: A compensator for a gun
IPC: F41A21/38
Filed: 1981-02-24
Abstract: In order to compensate for the muzzle climb or lift when a gun is fired as a result of the reaction of the recoil against the support for the gun there is provided a lift compensator for the muzzle end of a gun barrel (32) which comprises a tubular element (29) detachably mountable on a flash hider (31) for the gun. The element is rotatably adjustable on the flash hider to various preselected positions and has vents (39) and deflectors (40) selectively cooperable at each position with different ports (36) of the flash hider for utilizing gases discharged therefrom transversely of the barrel and for redirecting those gases to compensate for a particularly angle of muzzle lift. <IMAGE>
Patent GB-2093688-A (GB)
Title: Chair
IPC: A47C4/02
Filed: 1981-03-03
Abstract: A chair comprises side members 10 with matching holes 16-20 and connected by slats supported by means, such as bolts and nuts, detachably engaged in selected holes so as to adjust the contour of the seat and back. <IMAGE>
Patent GB-2078880-A (GB)
Title: Drive unit for a chain drive mechanism
IPC: F16H55/30
Filed: 1981-06-04
Abstract: In a first embodiment (Figure 1) a chain retaining disk 44 is provided with fixing elements engaging fixing apertures of a drive sprocket 36c. In a second embodiment (Figure 5) the chain retaining disk 144 is dot-welded at 150 to the drive sprocket. The drive sprocket is mounted on a bicycle and damage to spokes 42 is prevented by the disk 44, 144. <IMAGE>
Patent GB-2081263-A (GB)
Title: Manufacture of N-actyl Amides
IPC: C07D499/00
Filed: 1981-07-22
Abstract: N-acyl amides, including the penicillin amides, are made by reacting a carboxylic acid with an N- chlorocarbonyl-sec.-amide or lactam to form a mixed anhydride of the formula:   <IMAGE> wherein R is an organic acid radical, especially a heterocyclic group, substituted with other functional groups, and X is a bis[mono-C1-C6- alkyl] group a bis-[monoaryl]group or a mono-C1-C6-alkyl group or a monoaryl group, a divalent C1-C6- alkyl group or a C1-C5-alkyl group comprising a heteroatom selected from N, O and S, and subjecting the mixed anhydride to rearrangement. The N-acyl amide products have the formula:   <IMAGE> wherein R and X have the above- defined meanings.
Patent GB-2081447-A (GB)
Title: Shutting down a reactor when coolant leaks
IPC: G21C17/12
Filed: 1981-08-04
Abstract: A liquid metal cooled nuclear reactor has shutdown rods (13) provided with heads 17 which are hydraulically supported in raised positions against seats 20 by coolant. The rods and the core support structure (19) define valve members 20, 22 for coolant flow through gaps 31 so that relative movement between the rods and core is indicated by a change of flow of coolant. In the event of the relative movement exceeding a predetermined limit the rods are automatically released to fall into the core to effect immediate shutdown. Monitoring of the positions of the rods is made by measuring any changes in settings of the retractable housings 22 and casings 23 necessary to maintain the shutdown rods in their upper positions under standard conditions. <IMAGE>