baber/WOPTO huggingface dataset:
Patent GB-2054100-A (GB)
Title: Splined coupling
IPC: F16D1/06
Filed: 1980-06-27
Abstract: A shaft (1) has a spline groove (4) having sidewalls (5), and a surrounding rotary member (6) has a complementary tooth (7) in sliding engagement within the groove (4), such that it is slidable between a first position (shown in hard lines) and a second position (shown in broken lines) when it is not rotating. The groove sidewall (5) is provided with a projecting portion (42) which prevents the tooth (7) from sliding axially between the first and second positions while tangential forces (16, 17) are being exerted during transmission of torque between the shaft and member (6). When torque is no longer applied, tooth (7) becomes free to ride up and over the projection (42) in axial movement along the shaft. <IMAGE>
Patent GB-2084189-A (GB)
Title: Coated catalytic electrode for electrochemical processes
IPC: C25C7/02
Filed: 1980-08-18
Abstract: The electrode with an outer coating for effecting an electrolytic process is provided with a protective intermediate coating consisting of a conducting insoluble polymer network formed in situ on a titanium base and containing a small amount of finely dispersed platinum group metal catalyst. A method of manufacturing the electrode comprises applying to the titanium base several layers of a solution containing a polymer precursor and a platinum metal compound which are thermally converted to the protective polymer coating, on which the outer coating is formed, more particularly by electrodepositing manganese dioxide. The polymeric intermediate coating serves to protect the titanium base from oxidation, and to more particularly provide stable electrode performance with economical use of precious metal.
Patent GB-2058331-A (GB)
Title: Gas burner with air injection adapted to operate within a very wide range of caloric output values
IPC: F23D14/20
Filed: 1980-08-28
Abstract: This invention is related to a gas burner with air injection, adapted to be operated with flow rates which can be varied within a very wide range of flow rate values, especially with very low flow rates, comprising gas inlet means 1, air inlet means 2 and a divergent conduit 3 wherein said air and said gas are mixed to form an air/gas mixture, the end portion of said divergent conduit being provided with at least two air and/or gas inlet stages 30, 31, wherein the minimum inner diameter of the second one of said inlet stage is at least substantially equal to the inner diameter of the end of the first one of said stages. <IMAGE>
Patent GB-2059720-A (GB)
Title: Improvements in or relating in to switching apparatuses for connecting information sources together
IPC: H04Q3/545
Filed: 1980-09-26
Abstract: A switching apparatus which may be used as a telephone exchange comprises a switching field block 1, an interconnecting circuit block 2, an external peripheral block 3, and a control circuit block 4. The switching field block 1 comprises a switching field 5, a connecting path set-up circuit 6, a connection path hold circuit 7, a connection path clearing circuit 8, an information converter 9, a supply voltage converter 10, and a control interface unit 11. The interconnecting circuit block 2 comprises signal transmitter/receiver 12, a signal transmitter/receiver control 13, a scanner 14, a supply voltage converter 16, a signal generator 15, and a control interface 17. The external peripheral block 3 comprises a non-controlled peripheral device 18, a controlled peripheral device 19, and a control interface unit 20. The control circuit block 4 comprises a control circuit 21, data inputs 23 and data outputs 24, check devices 25, a supply voltage converter 22, and a peripheral interface unit 26. <IMAGE>
Patent GB-2087073-A (GB)
Title: Analysis using scintillation counting and an evaporator for drying down fractions obtained in the analysis
IPC: G01T1/204
Filed: 1980-10-30
Abstract: A method of analysing a sample by scintillation counting comprises radioactively tagging a sample for assay, subjecting the same to liquid chromatography, and subjecting the fraction so collected to scintillation counting characterized in that the chromatographic fractions are evaporated to dryness and subsequently taken up in a scintillation fluid prior to counting. An evaporator box is disclosed which provides means for directing a drying gas at a controlled temperature on the fraction in order to evaporate the same. There is reference to measurement of the binding of radioactive alkylating carcinogens to nucleic acids in tissues.
Patent GB-2086999-A (GB)
Title: Synchronised dog clutch
IPC: F16H3/14
Filed: 1980-10-31
Abstract: A synchronized dog clutch comprises a coupling sleeve (31) splined to the clutch shaft (22) and having dog claws (41) at its ends, a synchronizer ring (45) slidably fitted to outer periphery of the coupling sleeve (31) at each end and having a conical face (46) for frictional engagement with a conical face (48) of the respective gear wheel (20, 21) the latter face being disposed closely and radially inside the teeth (24), and the claws (42) of each gear wheel 20 being arranged inside the conical face (48), whereby torque transmitted through the conical faces (46, 48) for synchronization is increased. The rings (45) may be coupled to the sleeve (31) via splines or via baulking pin and slot arrangements (50, 51). During clutch release, if a ring (45) accompanies initial movement of the sleeve (31) it will abut stop (62) and be displaced to its idle position defined by detent (49). Vent passages are provided at (66). <IMAGE>
Patent GB-2071498-A (GB)
Title: Dental cleaner
IPC: A61C17/02
Filed: 1980-03-13
Abstract: The dental cleaner comprises a grip, a brush element selectively mounted to the grip, and a nozzle element. The grip has a drive rod for transmitting rotary reciprocating force to the brush element and for supplying water from external water supplying means into a water passage for introducing the water into the nozzle element, drive means for imparting the reciprocating rotary force to the drive rod, and a change-over switch for driving the drive means only when the brush element has been mounted. When the brush element is mounted to the grip to reciprocatingly rotate the brush element, it can brush teeth, and when the nozzle element is mounted to the grip to inject water therefrom, it can clean the gums of the teeth and massage them.   <IMAGE>
Patent GB-2068421-A (GB)
Title: Suction installation for drafting arrangement
IPC: D01H5/66
Filed: 1980-12-17
Abstract: Each drafting arrangement has a suction tube or pipe 11 connected with an air pressure sink. The suction tube contains a first suction opening 31 associated with the outfeed end of a pair of delivery rolls or cylinders 18, 19 and a second suction opening arranged neighboring a stripper 34 located adjacent one of the delivery rolls and extending essentially parallel to the roll axis. To simplify the construction and, in particular, in order to increase the width of the suction zones or fields emanating from the suction openings, the stripper or scraper is mounted in an open end of the suction tube and subdivides this open end into the first and second suction openings. <IMAGE>
Patent GB-2066728-A (GB)
Title: Bale discharge device
IPC: A01D87/12
Filed: 1980-12-19
Abstract: A bale discharge device (12) for attachment to the outlet (10) of a baler has top and side walls (14, 16, 18) between which are received two bales in succession longitudinally, where they are held by ribs (42) on the side walls until discharged by outward hinging of at least one of the side walls. The hinged side wall 18b is normally held closed by a device (60, 62, 64, 66) which is released when engaged by the rearwardly moving rearmost bale, allowing the two bales to drop to the ground still in end-to- end configuration, whereafter the hinged wall returns to its original position. <IMAGE>
Patent GB-2077558-A (GB)
Title: Integrated circuit phoneme-based speech synthesizer
IPC: G10L13/04
Filed: 1981-04-16
Abstract: A phoneme-based speech synthesizer that is particularly adapted for implementation on a single integrated circuit chip includes a vocal tract model comprised of a fixed resonant filter and a plurality of tunable resonant filters whose resonant frequencies are controlled in accordance with the values of certain control parameters. A digital transition circuit is included which gradually transitions the values of the vocal tract control parameters as they change from phoneme to phoneme by iteratively adding to the current values a predetermined percentage of the difference between the current and target values. The vocal tract model is implemented utilizing a capacitive switching technique which eliminates the need for large valued components to achieve the relatively low frequencies of human speech. A glottal source generator is adapted digitally to generate a glottal pulse signal in a manner which readily permits the glottal pulse to be spectrally shaped in any desired configuration. <IMAGE>
Patent GB-2079160-A (GB)
Title: Filtering facepiece
IPC: A41D13/11
Filed: 1981-06-19
Abstract: The facepiece is made from a flat pocket of filtering sheet material having opposed side walls 105, 106, a generally tapering shape with an open end 104 at the larger end and a closed, smaller end. The edge of the pocket at the closed end is outwardly bowed, e.g. defined by intersecting straight lines and/or curved lines, and the closed end is provided with fold lines 107 defining a surface which is folded inwardly of the closed end of the pocket to define a generally conical inwardly extending recess 108 for rigidifying the pocket against collapse against the face of the wearer on inhalation. <IMAGE>
Patent GB-2101751-A (GB)
Title: Line circuit testing
Inventor: TEACHER VICTOR
IPC: H04M3/30
Filed: 1981-07-07
Abstract: One of the known methods of testing the digital link (6) between a telephone exchange (1) and a subscriber's terminal equipment (7) in an "all-digital" system involves sending a bit stream over that link. At the subscriber's terminal equipment the "go" and "return" paths are looped together (switch 18) so that the bit stream is sent back to the exchange where it is compared in the test control unit (9) with what was sent. The result of this comparison indicates the condition of the link. In the present arrangement, the operation is improved by adding noise from a noise generator (10) at a known level to the received signal. The error rate is detected by the control unit (9) and the test repeated for increasing noise levels. This enables incipient features to be detected before the link fails completely. <IMAGE>
Patent GB-2103283-A (GB)
Title: Control of vehicle I.C. engine overrunning fuel cut-off
Inventor: CLAYTON JOHN WALKER
IPC: F02D41/12
Filed: 1981-08-01
Abstract: A solenoid valve 14, fuel injectors or a fuel injection pump are operated to cut-off the fuel supply in response to detection of conditions indicative of overrunning. Switches 11, 12, 13 or relays may be operated in response to gearbox, clutch, throttle valve, manifold vacuum or vehicle speed conditions indicative of overrunning. Security and engine stop switches 15, 16 may be included in the control circuit. <IMAGE>
Patent GB-2082528-A (GB)
Title: Vehicle transmission suspension tube
IPC: F16F1/38
Filed: 1981-08-13
Abstract: A suspension tube for a motor vehicle transmission assembly comprises two tubular members 2, 3 of different lengths, one end of one tubular member being received within one end of the other tubular member, one or more prestressed elements 4 of elastomeric material positioned circumferentially between and interconnecting the said ends of the tubular members, and mounting flanges at opposite ends of the suspension tube for connecting the suspension tube between a transmission unit and a drive unit of the motor vehicle transmissions. <IMAGE>
Patent GB-2094798-A (GB)
Title: Ergot alkaloids
IPC: C07D311/94
Filed: 1982-03-09
Abstract: A process for the production of an argot alkaloid comprising intramolecularly cyclising a 3-iminoethyl- 4-trans-buta-1',3'-dienyl-indole to produce an 8-ergolene and as necessary converting the resultant ergolene into the desired ergot alkaloid.
Patent GB-2104874-A (GB)
Title: Case for a chess set or other board game
Inventor: HOPKINS KINGSLEY ROYCE
IPC: A63F3/02
Filed: 1982-03-24
Abstract: A case for a chess set or other board game in which pieces (13) are moved from one location to another on a playing surface on the board and cannot be unintentionally removed from the locations containing them, can be closed without disturbing the pieces (13) so that a game can be interrupted and resumed later. The locations are symmetrical about an axis of the playing surface e.g. the mid-line of a chessboard, and the two support members on which the playing surface is formed are separated asymmetrically about a second axis parallel to and spaced from the first. This enables one part of the playing surface to be moved so that the two parts are opposed but offset, the pieces (13) then fitting between one another. The case has side walls (6, 10) which space the two support members sufficiently for even the tallest pieces (13) to remain in place as the case is closed. <IMAGE>
Patent GB-2118907-A (GB)
Title: Two- or four-wheeled shopping trolley
Inventor: PACSA RUDOLF
IPC: B62B1/00
Filed: 1982-04-22
Abstract: The trolley is made especially larger in order to carry up to sixty kilos weight of shopping for the housewife with a large family. It has the convenience of being able to fold two of its wheels away and so thus be used on two. <IMAGE>
Patent GB-2100557-A (GB)
Title: Apparatus for heating a pipe by induction
IPC: H05B6/10
Filed: 1982-04-23
Abstract: The apparatus comprises an axially extending collar (10) for surrounding a pipe (12), the collar including two arcuate frames (14, 16) hinged end to end at (44). A plurality of electrically conducting wires are carried on the frames and spaced across the axial width thereof, the wires extending circumferentially of the collar between the free ends of the frames. Male and female connectors (80, 82) are provided on the wires adjacent these free ends and electrically interconnect the wires when the free ends are brought to a closed position about the pipe. The wires on one axial half of the collar are interconnected to form two interlaced bifilar windings and the wires on the other axial half of the collar are also interconnected to form two interlaced bifilar windings arranged in end to end axial relationship with the other bifilar windings, so as to define an overall quadrafilar winding for the collar. <IMAGE>
Patent GB-2097939-A (GB)
Title: Improvements in or relating to hardness test indenters
IPC: G01N3/44
Filed: 1982-04-28
Abstract: An indenter is generally pyramidal, but instead of being pointed or truncated has the four operative faces 12, 14, 18, 20 leading up to a short straight ridge 16. The ridge is between 0.05 and 0.5 mm long typically about 0.25 millimetre long, and the angle between opposite operative faces is between 60 DEG  and 150 DEG , typically 111 DEG . The indenter may be made of diamond or boron nitride. <IMAGE>
Patent GB-2102252-A (GB)
Title: Audio frequency measuring apparatus
Inventor: DETERING KLAUS
IPC: E21F17/18
Filed: 1982-07-21
Abstract: The capacity of a measuring system, e.g. for use in a mine, consisting of sensors (2, 3) and transmitter (1) transmitting via a wire to a remote signal receiving and evaluation part (10) is substantially increased by a multiplexer (4) between the sensors and the transmitter (10). <IMAGE>
Patent GB-2105780-A (GB)
Title: Improvements in friction stays for windows
Inventor: BIGLEY RICHARD JOHN
IPC: E05D15/46
Filed: 1982-07-26
Abstract: The invention relates to friction stays for windows of the kind having rivetted friction pivots 8 and two arms 5,6 of different length. To provide additional support and control of such stay for supporting a sash, a third intermediate arm 7 is provided. The third arm 7 is pivotally connected to the mounting plates 1 and 3 respectively for securing to a window frame and sash. The second and third arms 6,7 move substantially parallel, and in the fully opened position of the sash, the third arm provides support approaching the centre of gravity of the sash. Furthermore, the third arm is a restraint and can avoid the provision of separate stops or limits. <IMAGE>
Patent GB-2128429-A (GB)
Title: An oscillator
Inventor: WILLATS TERENCE FLEETWOOD
IPC: H03B5/32
Filed: 1982-09-17
Abstract: In conventional bulk acoustic wave oscillators waves are sent along a path through a suitable medium and are received to give a feedback signal. Oscillations occur whenever the path is an integral number of wavelengths long. However, they can occur at different side band frequencies, where each frequency gives a whole number of wavelengths along the path length. By employing this invention the side band frequencies can be inhibited. Bulk acoustic waves are launched from a transducer 2 and are reflected by a reflector 5, which acts in an analogous way to blazed optical diffraction gratings and reflects waves in a direction depending on their frequency. Waves at the desired frequency are sent to a second reflector 7, which is similar to the first, and are reflected to a second transducer 3, the output of which is the input to an amplifier 9. Part of the output of the amplifier 9 provides the input signal to the transducer 2. Any side band frequencies are reflected at 5 and 7 in directions such that they are not received at 3 and are therefore inhibited. <IMAGE>
Patent GB-2118496-A (GB)
Title: Wheel drive means
Inventor: BIBBINGTON PAUL
IPC: B60B19/00
Filed: 1983-04-20
Abstract: An eccentrically locatable and rotatably mounted hub (12) has a plurality of hydraulically extendable and retractable spokes (11) in the form of piston-cylinder arrangements (13, 14) leading from the hub and extending to the wheel rim (8), and being slidable or otherwise displaceable on said rim at the ends remote from the hub (12); the hub communicates with and is rotatably mounted on axle means (6) which also distribute and control hydraulic fluid supplied to the spokes (11) so as to cause said spokes to be extended over one half of the circle of the wheel and to permit retraction over the other half of the circle so that, in use, the hub (12) is located in a position eccentric to the centre of said wheel rim and offset in the direction of intended motion, and rotation of the wheel rim (8) is thus caused. <IMAGE>
Patent GB-2126368-A (GB)
Title: Coupling device for optical waveguide
Inventor: HAAG HERBERT
IPC: G02B6/38
Filed: 1983-07-20
Abstract: In a coupling device for optical waveguides in the form of a plug and a socket member, the fibre ends of the fibre optic cables (5, 5') held inside the connecting sleeves (4, 13) are pressed against each other with their end faces in the coupled state of the device, by the action of compression springs (17). For locking the two halves of the coupling device there is used a quick-acting lock which comprises a snap-lock mechanism (29) in which balls (27) of the plug member engaging into a groove (7) of the socket member, are either arrested or released with the aid of a sliding sleeve (15) arranged on the plug member. In the respective positions corresponding to either the locked or the unlocked snap-lock mechanism (28), the sliding sleeve (15) is retained with the aid of a click-stop device (14). <IMAGE>
Patent GB-2125491-A (GB)
Title: A pulley assembly
Inventor: GOSSMANN WILLI
IPC: F16C13/00
Filed: 1983-08-10
Abstract: A pulley assembly comprises a support member 10, a carrier body 13 having an inner race track 16 secured to the support member 10 and a pulley body (not shown) mounted on and for rotation relative to the carrier body. The support member 10 and carrier body 13 are both formed of sheet metal. One of them has at least one bore 15 and the other has at least one integral element 12. The or each element 12 comprises a shank 11 having at its free end a head 17. The shank 11 of the or each element 12 projects through the or one of the bores 15. The support member 10 is secured to the carrier body 13 by rivetting or crimping. <IMAGE>
Patent GB-2131753-A (GB)
Title: Trailer caravans
Inventor: PATRICK JOHN
IPC: B60P3/34
Filed: 1983-11-29
Abstract: A convertible trailer-caravan has a wheeled chassis (1) surmounted by a body assembly (2) comprising at least one hingedly mounted component (2a, 2b) which is rotatable into a position in which it rests upon an extension (5) from the chassis (1) and forms a co-planar extension of the floor of the base of the body assembly. <IMAGE>
Patent GB-2152669-A (GB)
Title: A liquid level indicator
Inventor: CHIA KAM POI
IPC: G01F23/02
Filed: 1984-01-10
Abstract: A water level indicator consists of a substantially flat front part (1) made of a transparent plastics material and attached to a channel- shaped, open-ended, opaque rear part (2) of semi-circular cross- section. An elongated prism (5) is attached to, or integrally formed with, the inner surface of the front part (1), and a gap between the prism (5) and concave surface of rear part (2) forms a vertical bore, into which water is introduced via aperture (9). The rear part may be coloured. Below the water level in the bore, the relative refractive indices of water and the prism material make visible the opaque rear part (2) through part (1). Above the water level, the relative refractive indices of air and the prism material cause total internal reflection within the prism (5), so that rear part (2) is not visible. <IMAGE>
Patent GB-2154231-A (GB)
Title: Method of and apparatus for working preforms of thermoplastic material such as glass
Inventor: ZAUNER OTTO
IPC: C03B23/11
Filed: 1984-02-16
Abstract: A machine (10) for fabricating articles, such as glass vials from tubular stock (20), includes a plurality of rotating chucking stations (16, 18) which revolve about the central vertical axis of the machine, and a plurality of tooling stations (50, 200), which form the vial finish, disposed in equal numbers related to the number of chucking stations on two conveyor assemblies (74) disposed adjacent the periphery of the circle defined by the revolving chucking stations. The tooling stations each include rollers which form the outside of the vial finish and a segmented mandrel which forms the inside of the vial finish including, if desired, a blowback cavity. The method includes providing one article in a workable, elevated temperature condition, rotating the article, moving a tooling carriage into aligned proximity therewith, and forming the finish portion by engaging the outside of the article with forming rollers and engaging the inside with expanded mandrel segments. <IMAGE>
Patent GB-2151580-A (GB)
Title: A self-propelled lifting device
Inventor: DE VIZIA CARMINE
IPC: B66C23/76
Filed: 1984-07-17
Abstract: A self-propelled lifting device comprises two tracked motor vehicles (10) and (12) having respective turntables (14) and (16) rotatable around vertical axes and interconnected by an extendible horizontal structure (34). An arm (18) and a coacting arm (20) interconnected at their tops by an adjustable pull rod (22) are pivoted at the bottom to the turntable (14) of the first vehicle by respective pivots (13), (15) disposed in a position such that the resultant of the axial forces transmitted from the arm (18) and coacting arm (20) to the turntable (14) passes through the rotary bearing surface of the turntable (14) to the vehicle (10). <IMAGE>