baber/WOPTO huggingface dataset:
Patent GB-2016308-A (GB)
Title: A method of manufacturing a barrel for a pump or hydraulic motor
IPC: B22D19/08
Filed: 1979-03-14
Abstract: A barrel for a pump or barrel- type hydraulic motor comprises a cylindrical crown 1 having cylindrical bores 6 with parallel axes and a connection pipe of smaller diameter. The bores and the end face adjacent the pipe are clad with an anti-friction allow. The barrel is manufactured by producing a blank in which the cylindrical bores 6 pass right through the crown 1. The blank is then closed by a base 7 and antifriction alloy is cast into the mould thus formed. Finally, the bores, connecting pipe and the clad end face are machined. Two barrels can be manufactured simultaneously using this method by separating a blank transversely into two equal parts prior to the machining step. <IMAGE>
Patent GB-2023791-A (GB)
Title: Improvements in or relating to regenerative heat exchangers
IPC: F28D19/04
Filed: 1979-03-15
Abstract: A regenerative heat exchanger for heat exchange between a hot gas and a cooler gas (e.g. air), has a rotatable matrix which comprises an assembly of a rigid frame 14 and a plurality of refractory blocks 10 confined within the frame. The blocks are urged into engagement with one another by biassing means (e.g. fluid actuated rams 17) which react against the frame. Each refractory block is formed with a plurality of gas flow passages which extend from one exposed end face of the matrix to the other. <IMAGE>
Patent GB-2026007-A (GB)
Title: Anthraquinone dyes
IPC: C09B1/34
Filed: 1979-05-08
Abstract: ANTHRAQUINONE DYES. Anthraquinone dyes having the formula:   <IMAGE> where R represents an optionally substituted alkyl, aryl, cycloalkyl, alkoxy, aryloxy or cycloalkoxy radical and each of R<1> and R<2>, independently, represents hydrogen or a C1-4 alkyl radical. The dyes are applicable as acid dyes to natural and synthetic polyamide textiles.
Patent GB-2023678-A (GB)
Title: Elastic dressing material
IPC: D04B21/18
Filed: 1979-06-05
Abstract: A fully elastic dressing material, that is a fabric band which is elastic in all directions, is knitted on a Raschel machine and comprises warps knitted into chains, and connected by elastic wefts. The fabric may comprise only chains knitted from elastic yarns 1 and laid-in elastic wefts 2 but may also include additional chains of non elastic yarns 3. The elastic yarns may be elastomeric and wrapped with textile yarns and the non-elastic yarn may be cotton or viscose staple. The elastic yarns are knitted under tension and, when the fabric is released, these retract while the non- elastic yarns form loops. The needles of the machine are passed through the bands undergoing formation while omitting periodically at least one needle between two chain warps in the interlacings which form the chain warps and the bindings of the transversal weft yarns with the chain warps in order to provide a retraction space. The bands thereby produced have selvages which are uniform and flat. <IMAGE>
Patent GB-2023513-A (GB)
Title: Securing Loads on Vehicles
IPC: B60P7/12
Filed: 1979-06-26
Abstract: A pile of cylindrical members 2, particularly pressurised gas cylinders where the lower layer of cylindrical members rests on support means 3, the other layers being placed in a staggered manner on the underlying layer, is stowed on a vehicle chassis 1 by straps 7 fixed to the chassis and provided with tensioning means 11. The straps encircling the pile of cylindrical members are cables, whose ends are connected to a structure fixed to the chassis by tensioning means, each located beneath the plane of the lower layer of the pile. The tensioning means are disposed in such a way as to bring about a spring tension of the associated cable and an articulated mounting of the cable ends on the structure fixed to the chassis. <IMAGE>
Patent GB-2029148-A (GB)
Title: Surface wave devices
IPC: H03H9/00
Filed: 1979-07-09
Abstract: A surface acoustic wave device comprising a first interdigital transducer (9) coupled with two further interdigital transducers (5 and 7) wherein one (7) of the further transducers is symmetric about its geometric centre (23) and the other (5) is antisymmetric about its geometric centre (23), the first transducer being either symmetric or antisymmetric. The arrangement introduces a 90 DEG phase difference between signals transmitted to the further transducers from the first transducer or vice versa, and can be used to provide frequency independent quadrature outputs by appropriate spacing of the geometric centres (15 and 23) of the first and further transducers. <IMAGE>
Patent GB-2056521-A (GB)
Title: Moulded bull nosed coping stone
IPC: B28B7/10
Filed: 1979-08-17
Abstract: A bull-nosed coping stone having a rear face 6 which is inwardly inclined, from bottom 8 to top 7 of the stone as it is laid, from top to bottom as it is cast, such that the mould has a correspondingly inwardly inclined rear face 16. When the stone is cast and is set, mere release of the inclined stone and mould faces permits of removal of the stone from the mould, by rearward and downward-pivoting motions, without dismantling the mould, the mould being rigid and without moveable parts. <IMAGE>
Patent GB-2035867-A (GB)
Title: Planing machines
IPC: B23D1/00
Filed: 1979-11-21
Abstract: A planing machine having a reciprocatory workpiece supporting table 11 for one or two workpieces W, a tool support assembly carrying one or two tools 26, 27 for working on the workpieces W, the tool support assembly having provision for adjustment vertically and horizontally and a means 16 for monitoring the linear position of the table 11 and for transmitting signals to servo motors 28 to 31 to adjust the tool or tools 26, 27 whereby variable profile machining of the workpiece or workpieces W can be carried out. <IMAGE>
Patent GB-2035904-A (GB)
Title: Electrographic copying method and apparatus
IPC: G03G15/26
Filed: 1979-11-22
Abstract: A primary electrostatic charge image is formed on a charged sheet (2) of photoconducting material in an exposure station (1). From this primary image a secondary image is generated (at 10) on an endless surface (9) of a dielectric material. The secondary image is developed ie with toner particles (at 11) and the toner image transferred to permanent copy material (at 13). Preferably the sheets (2) are zinc-oxide coated and are fed to the exposure station (1) one-by-one from a reservoir (3). <IMAGE>
Patent GB-2035613-A (GB)
Title: Adaptive control constraint system used especially in cylindrical grinding machines
IPC: B24B49/16
Filed: 1979-11-26
Abstract: In a system of adaptive control for a cylindrical grinder, the movement of the slide supporting the grinding wheel, the work-table and the rotation of the object to be machined object is effected by electrohydraulic servo-units with step motor, or electric step motors, controlled by an electronic system. The electronic control system comprises transducers detecting the pressures in the chambers of the hydrostatic bearing of the spindle of the grinding wheel and the grinding force is determined from the pressure difference. A pulse sequence is derived in dependence on the difference and is used to control, through a change-over switch, either the slide or table feed rate.
Patent GB-2064088-A (GB)
Title: Apparatus for securing alight fitting to a skip
IPC: F21V15/02
Filed: 1979-11-30
Abstract: The invention relates to a security apparatus such as a cage 1 in which a lamp can be placed, this cage being secured to a lug of a skip by a loop 4, the lamp being maintained in the cage by a releasable bar 6 which has a hole 9 which is alignable with a hole 5 of the cage, a padlock being engaged through the holes 5 and 9 to lock the cage to the skip and to secure the lamp in the cage. <IMAGE>
Patent GB-2039635-A (GB)
Title: Freewheel coupling
IPC: F16D41/18
Filed: 1979-12-17
Abstract: A freewheel coupling for drivingly connecting co-axial driving and driven shafts 11, 14 includes preventer means adapted to automatically prevent engagement except when the speed of rotation of the driving and driven shafts is substantially synchronised. The preventer means comprises a ball bearing 27 having a ball race 30 located in circumferential trackways 31, 32 in inner and outer races 29, 28 attached respectively to first and second coupling parts 18, 19, and having a plurality of slots 33 extending laterally from one of the trackways so as to permit relative axial movement of the coupling parts by movement of the balls of the ball race in the slots. The coupling may be used in a drive system for a helicopter rotor. <IMAGE>
Patent GB-797506-A (GB)
Abstract: 797,506. Semi-conductor devices. SIEMENS - SCHUCKERTWERKE AKT. - GES. Nov. 22, 1954 [Nov. 21, 1953], No. 33824/54. Class 37. A semi-conductor device comprises a semiconductor member of material having a carrier mobility of at least 6000 cm.<SP>2</SP>/volt. sec., a pair of electrodes for passing current through the member, and means for applying a magnetic field perpendicular to the current, the arrangement being such that the value of the Hall field is reduced to allow substantial deflection of the current, thus providing increased control of the resistance between the electrodes by the magnetic field. This is achieved by (i) making the distance between the Hall surfaces greater than that between the electrodes as illustrated in Fig. 2b which shows the current paths in a thin semi-conductor block member, or (ii) providing strips of conducting material across one or both surfaces of the semi-conductor block between and parallel to the electrodes so that each strip extends between the two Hall surfaces (Fig. 4), or (iii) effectively eliminating the Hall surfaces by locating one of the electrodes round the periphery of the semi-conductor member and the other electrode at the centre of the member, as illustrated in Fig. 5b, which shows a semi-conductor disc provided with the two electrodes. In this arrangement, the central electrode may be a wire penetrating the disc, or a blob of indium on the surface of the disc. The magnetic field may be arranged to penetrate just the centre region of the disc, and cooling fin may be provided on the outer region. The semi-conductor material may consist of InSb, InAs or other Am By compound. Specification 797,505 is referred to.
Patent GB-2048740-A (GB)
Title: Hydropunch for use in Press Installations
IPC: B21D26/02
Filed: 1980-01-11
Abstract: A hydropunch for an hydraulic metal working press having a die 2 comprises a cylinder 1, a ram 3 reciprocable within the cylinder 1 and dividing the cylinder interior into upper and lower chambers 6, 5, an actuator 4 for controlling supply of compressed gas to chamber 6 from a receiver 8, and means for returning the ram to its upper position including a closed chamber 14 communicating with the lower chamber 5 through ducts 16 and a valve 17 for communicating the upper chamber 6 with atmosphere under the control of actuator 4. As shown the apparatus includes a non- return valve 20 which allows gas to enter chamber 15 from chamber 5 when the ram is in its lower end position. Liquid 12 transfers the energy of ram 3 to workpiece 13. <IMAGE>
Patent GB-2042052-A (GB)
Title: Releasable-fastening bolts
IPC: E05C9/18
Filed: 1980-01-21
Abstract: A bolt comprises a housing, a slider (6) slidable relative to the housing, and means, such as a knob (11) secured to the slider and located in a cut-out (14) in a cover (13), for limiting the travel of the slider relative to the housing. The housing comprises a solid flat base (1) and means, such as a rib (7) and a groove (4) of a complementary dovetail section, for releasably securing the slider (6) against removal from the base (1). The base has upper and lower surfaces and apertures (5) extending therethrough between the upper and lower surfaces for receiving securing devices such as screws. The base is secured with its lower surface against a supporting surface (not shown), the slider being slidable over the upper surface of the base, the apertures and any fixing devices therein. In another embodiment, the dovetail connection between base and slider is omitted; the cover is releasably secured to the base, and when so secured prevents removal of the slider. <IMAGE>
Patent GB-2044591-A (GB)
Title: Rotatable fish cage
IPC: A01K63/00
Filed: 1980-02-18
Abstract: A fish cage having perforated walls includes a plurality of control devices which periodically rotate the cage to expose each wall in turn for cleaning or replacement. In the embodiment of Figure 1, the cage (8) is provided with four control devices (A - D) which can be filled with air or water (via rotation valve 18A - D) as appropriate to effect the desired rotation. These same devices can also be used to control the buoyancy of the cage and hence the level at which it floats in the ambient water preferably just on or under the surface. Two or more such cages may be arranged to share a common removable wall between them. <IMAGE>
Patent GB-2046911-A (GB)
Title: Method and apparatus for measuring the wall thickness of tubes
IPC: G01B17/02
Filed: 1980-04-02
Abstract: A technique for measuring the wall thickness of a tube 2 using ultrasonic signals emitted in succession from transducers 6 in a head 4, in which the transducers are acoustically coupled with an inner surface of the tube by liquid occupying a chamber 12 between seals 8 and 10 mounted on the head and in fluid-tight sliding contact with the said inner surface so that the head, transducers, seals and liquid in chamber 12 can be moved along the tube to different positions where measurement is desired. Liquid leaking from chamber 12 can be trapped by seals 18 mounted on the head through a universal joint allowing the arrangement to pass around bends, and the chamber may be replenished through a pipe 14. <IMAGE>
Patent GB-2057854-A (GB)
Title: An anti-slip device for shoulder bag straps
IPC: A45C13/30
Filed: 1980-09-12
Abstract: An anti-slip device for shoulder bag straps comprising one or more strips (2, 7, 7') of a rigid but flexible material such as sheet metal to which is attached on one or both sides thereof a layer (4, 4a, 4b, 6) of anti-slip material such as sponge rubber or plastics foam. in an alternative embodiment, two separate strips (7, 7') connected by a single strip of anti-slip material (6) are provided. <IMAGE>
Patent GB-2090087-A (GB)
Title: Amplitude Modulation Circuit
IPC: H03G11/04
Filed: 1980-12-18
Abstract: An amplitude modulation circuit is provided for use with an r.f. amplifier so as to control the maximum depth of modulation of a transmitted radio signal. The amplitude modulation circuit contains a clipping circuit 12 which clips the excessive amplitude excursions of an applied audio signal and reduces the gain of a preceding amplifier stage 10 when clipping occurs. The actual level at which clipping takes place is made a function of the supply voltage applied to an r.f. modulator amplifier so that the r.f. carrier is never over modulated as this would introduce unacceptable distortions. <IMAGE>
Patent GB-2069528-A (GB)
Title: Ferromagnetic Alloys
IPC: C22C19/00
Filed: 1981-02-06
Abstract: A ferromagnetic alloy comprises of an intermetallic compound of rare earth elements and transition metals, shown by the formula:    R(NixFe1-x)A  wherein     0.35&x&0.55   5.0<A<8.5   and a ferromagnetic alloy comprises of an intermetallic compound of rare earth elements and transition metals, shown by the formula:    R(NixFeyCo1-x-y)A In both formulae R is at least one element selected from the lanthanide light rare earth elements including Y, such as Y, La, Ce, Pr, Nd and Sm, and in the latter formula:    0.02&x&0.55   x/y=0.01-25.0    0.01&y&0.65     5.0<A<8.5   Preferably, the Ni and Fe are incorporated in substantially equimolar amounts in both alloys.
Patent GB-2094876-A (GB)
Title: Fasteners for bags, wallets or purses
IPC: A45C13/08
Filed: 1981-03-11
Abstract: A fastener for the closure flap 6 of a wallet or the like comprises an ornamental head (9) fixed to a fastening stud (10) which projects through the flap and is secured by a spring washer (19). The head (17) of the stud engages a fastening socket, not shown. By this means, the cost of separately mounted ornaments and fasteners is avoided. <IMAGE>
Patent GB-2081813-A (GB)
Title: Automatic mechanism for shutting down a fluid pressure system
IPC: F04B49/025
Filed: 1981-04-07
Abstract: The mechanism, which stops fluid flowing under pressure in a recirculatory system, e.g. in a hydraulic power unit for a tool, when there is a leakage, comprises a cable 14 having one end connected to a lever 20 biased into a rest position at which drive means for pressurising the fluid is de-energised, the other end of the cable having a handle 17 engageable with releasable latching means when the drive means is energised. A float 6 in a reservoir 1 for the fluid is arranged to release the cable handle 17 from the latching means and so de-energise the drive means when the level of fluid in the reservoir 1 falls below a predetermined value. <IMAGE>
Patent GB-2076194-A (GB)
Title: Electronic translator
IPC: G06F17/28
Filed: 1981-04-14
Abstract: An electronic translator comprises an input device for entering first word or words, a first memory circuit for storing the first word or words, a second memory circuit for memorizing second word or words equivalent to the first word or words, an access circuit for addressing the memory circuits to cause retrieval of the first word or words, or otherwise the second word or words, and a control circuit for controlling activation of the access circuit. There may be additionally provided a holding circuit for holding the first word or words without translation. <IMAGE>
Patent GB-2074968-A (GB)
Title: Improvements in or relating to a flexible conveyor belt supporting structure
IPC: B65G39/16
Filed: 1981-04-27
Abstract: A support structure for a conveyor belt comprising, elongated idler means (10) adapted to support sequential portions of a run of travelling conveyor belt (6) with the edges of such run being unsupported, edge rollers (22) having rotatable portions supported adjacent the edges of such a run conveyor belt, respectively, said rotatable portions having outer cylindrical surfaces (30) closely adjacent the sides of such a run respectively, said rotatable portions having at least flange portions (34) extending outwardly from one end of said cylindrical surfaces and spaced below the undersurface of such edges, respectively. <IMAGE>
Patent GB-2076001-A (GB)
Title: High modulus microcellular polyurethane foams
IPC: C08G18/32
Filed: 1981-05-11
Abstract: A process for preparing a microcellular polyurethane foam with a tangential modulus of at least 10,500 kg/cm<2> (150,000 psi) comprises reacting a polyisocyanate with from 0.9 to 1.1 equivalents per equivalent of isocyanate of a polyhydroxyalkylated amine polyol which has a molecular weight of from 180 to 1500, a hydroxyl number of from 100 to 1200, and a viscosity of less than 60,000 centipoise.
Patent GB-2078508-A (GB)
Title: Adjustable locking mechanism
IPC: A45B9/00
Filed: 1981-05-18
Abstract: There is provided an adjustable locking mechanism, which comprises a first member 3 having a tubular portion which has an end 5 flared with respect to a second member 1 adapted to fit within the end and the tubular portion and a wedge means 9 adapted to be gripped between the second member and the end so as to prevent movement of the second member further into the tubular portion of the first member 3 when the wedge means is so gripped. The mechanism may be used in an invalid walking aid, such as a crutch or walking stick, provided with such an adjustable locking mechanism. The means 9 may take the form of a rubber ring. <IMAGE>
Patent GB-2078332-A (GB)
Title: A spur gear transmission system
IPC: F16H57/02
Filed: 1981-06-10
Abstract: In a spur gear transmission system of the type having two intermeshing gear-wheels (10, 20) and a thrust ring (13) which is attached to one gear-wheel (10) and rotates with it, the thrust ring bracing one gear-wheel against the other gear-wheel for transmitting an axial torce, for the purpose of accommodating the thrust ring (13) in the central region of its teeth, one gear-wheel (10) has a circumferential groove (15), in the vicinity of which tooth stumps (16) are provided. The thrust ring 13) has inner teeth (17) formed in such a way that they can be introduced across the teeth of one gear-wheel (10) into the circumferential groove (15) and rest on the tooth stumps (16) after rotation through half an interval between the inner teeth. <IMAGE>
Patent GB-2100597-A (GB)
Title: Display turntable
Inventor: ENTWISTLE JOHN CLIFFORD
IPC: A47F5/025
Filed: 1981-06-23
Abstract: A turntable (10) for displaying goods such as a motor car comprises a resiliently deformable domed steel plate (11) carrying a spindle (19) on which the load carrying structure is rotatably mounted and, beneath the domed plate, a flat plate (25) which is clear of the ground (17) when the turntable (10) is unloaded, but on loading assists in supporting the load through resilient deformation of the domed plate. The load carrying structure comprises a main beam having cradles at each end thereof, the cradles being positionally adjustable to accommodate differently sized loads. A drive motor is pivotally mounted on the main beam and biassed downwardly so that a drive pulley engages the upper surface of the domed plate. <IMAGE>
Patent GB-2103131-A (GB)
Title: Magnetic stirring of molten metal in a mould, utilizing permanent magnets
Inventor: KOBAYASHI SUMIO
IPC: B22D11/115
Filed: 1981-07-28
Abstract: A rotatable permanent magnet member is provided around the mould. Said rotatable permanent magnet member is arranged such that a rotating magnetic field in a plane perpendicular to the longitudinal direction of said mould and a shifting magnetic field in a direction parallel to said longitudinal direction are produced upon the rotation of said permanent magnet member. In one form the magnet member comprises two helically twisted magnets (21) with interposed spacers (22). In another form the magnet member comprises two groups of magnets (21) arranged in each group in a staggered formation following a helical path, and interposed spacers (22). An electric motor rotates the magnet member about the axis of the continuous casting mould by way of gearing. <IMAGE>
Patent GB-2085531-A (GB)
Title: Dispenser for liquid preparations
IPC: A47K5/12
Filed: 1981-08-14
Abstract: Body 10, of a pump having a plunger rod 15 depression of which causes liquid to be ejected through nozzle 17 and upward movement of which under the action of spring 20 causes liquid to be sucked up tube 30 and past non-return ball valve 22, is provided with a threaded spigot 28 enabling it to be mounted permanently in place, e.g. on a sink top 36 adjacent a bowl 37. <IMAGE>
Patent GB-2105970-A (GB)
Title: Watch band
Inventor: TATENO KOJI
IPC: A44C5/00
Filed: 1981-09-19
Abstract: A watch band constructed by spirally winding a single metallic wire (2) around a core strip (1) is improved in that the tip (2a) of the wire (2) is located a a position spaced from the end of the core strip and protected by a reinforcement strip (3) per se fixed on the end portion of the core strip and having side portions and turned portions (3c, 3c') one of said turned portions (3c) being convergent and the other (3c') being divergent so that there may be formed a step complementarily receiving the tip of the metallic wire when they are joined together, the slope of the convergent and divergent portions coinciding with the helical angle or lead angle of the spirally wound metallic wire so that the latter may be snugly received by these portions. <IMAGE>
Patent GB-2085204-A (GB)
Title: Motor control system
IPC: H02P25/02
Filed: 1981-10-05
Abstract: A motor control system including an A.C. supplied input convertor 1 and a motor convertor 16 interconnected by a D.C. link 3, the motor convertor being controlled in dependence upon the motor speed or torque and the input convertor being controlled to maintain a constant reactive input current. The result is constant KVAR drawn from the supply, and consequently an improved power factor, whilst still maintaining constant speed torque of the motor. <IMAGE>