baber/WOPTO huggingface dataset:
Patent GB-2073555-A (GB)
Title: Hands-free telephone circuit
IPC: H04M9/08
Filed: 1981-01-29
Abstract: In a hands-free telephone, or a telephone with an additional loudspeaker difficulty may be experienced due to acoustic feedback from the loudspeaker to the microphone, which can cause the system to howl. This is overcome by the use of two electronic switches (SES, EES) arranged in the transmitting channel (SK) and the receiving channel (EK). These are controlled by a clock pulse generator (RG) which generates pulses at twice the maximum frequency to be transmitted, the pulses controlling the switches alternately. In certain cases it may be desired to so control the switches that in each clock pulse cycle there is a short period in which both channels are open. <IMAGE>
Patent GB-2078873-A (GB)
Title: Rolling bearing
IPC: F16C35/067
Filed: 1981-06-03
Abstract: The invention provides a rolling bearing comprising inner and outer races 50, 52 of plastics material with balls between. The outer race has an integral stop flange 56 which limits the extent to which the bearing can be pushed into a hole in a housing or structure which receives the bearing. <IMAGE>
Patent GB-2081181-A (GB)
Title: Cleaning offset printing blankets
IPC: B41F35/06
Filed: 1981-07-15
Abstract: A blanket of an offset printing machine is cleaned to remove debris by passing through the machine either in web or sheet form a material having at least one surface which is tacky and removes the debris from the blanket, the surface not adhering to the feed mechanisms of the machine, or to adjacent sheets when stacked in sheet form, before or after passing through the machine. The adhesive is preferably an acrylic ester polymer which is pressure-sensitive, and the sheet of web preferably carries a pattern of ribs to give the non- adherent properties in the feeding and stacking mechanism.
Patent GB-2089063-A (GB)
Title: Cytocentrifugation
IPC: G01N1/28
Filed: 1981-10-16
Abstract: A sample carrier for cytocentrifugation is characterised by a holder with a web 1 dimensioned to support a deposit-receiving slide, for instance a standard microscope slide, and flanges 2 having trunnions 6 for pendulous mounting on a centrifuge head; and a body dimensioned to fit between the flanges of the holder to overlie a slide thereon, the body having through passages defining sample chambers in conjunction with the slide. Seals such as O-rings provide for sealing of the body on the slide and are held in light but seal effective contact with the slide by spring-pressed balls 7 acting between the holder and the body to exert a resilient load on the latter, that is increased by centrifugal forces during centrifuging to maintain effective sealing. A suitable carrier plate (Figs 10 and 11) is provided and replaces that normally supplied with the machine. <IMAGE>
Patent GB-2093777-A (GB)
Title: Tire with tread for snow traction
IPC: B60C11/12
Filed: 1981-12-07
Abstract: A plurality of transverse grooves 8 are provided in the tread of a tire 2, each groove 8 having both sidewalls 10, 11 slanted in the same direction as one another with respect to the normal to the tread surface 4 (Fig. 2), with the sidewalls of some grooves 8 being slanted in one direction r and the sidewalls of the remaining grooves 8 being slanted in the opposite direction, whereby the tire 2 has snow traction regardless of which direction it is rotating. The angle a at which the sidewalls 10, 11 are slanted may be 15 DEG , and the grooves 8 may be disposed at 75 DEG  to the circumferential. The groove sidewalls may be parallel to one another as shown in Fig. 2 or such that each groove is of V-section. The grooves 8 may be located in ribs bounded by circumferential grooves 6. <IMAGE>
Patent GB-2101778-A (GB)
Title: Computer
Inventor: LEININGER STEVEN
IPC: H03M11/20
Filed: 1979-07-20
Abstract: The computer system of this invention has, as the heart of the system, a simple processing unit for providing most data processing by the computer system under control of a read-only memory which contains only instructions and other data for the CPU. The system also includes a random access memory, a keyboard, a video terminal, and a port device in the form of a tape recorder/player. A master clock initiates timing used throughout the system. A multi-line data bus interconnects the CPU and the different memories of the system including the keyboard and the video RAM. Bi-directional communication is possible on the data bus. The addressing of these different memories is by way of an address bus from the CPU, which is a uni-directional bus. Data to be operated upon is basically stored in the random access memory. The keyboard is used for inputting data to the CPU and the video terminal is used for displaying data. Features of the present invention include a special reset scheme for the CPU, a multiplexing scheme for addressing the RAM, a technique simply altering the control to provide capabilities of different capacity memories, alternate display of characters to provide, for example, either a 32-character line or a 64-character line, an improved keyboard selection scheme, and improved video processing means. A cassette recorder 40 may be controlled by the CPU 10, the latter supplying a predetermined address and input/output mode signals to a port device. <IMAGE>
Patent GB-2090908-A (GB)
Title: Door handle assembly
IPC: E05B3/06
Filed: 1982-01-06
Abstract: In a handle assembly having a handle 1 mounted on a backplate 2 adapted to be secured to a door or the like by screws 6, a cover plate 3 mounted on the backplate is rotatable between a released position in which parts of the backplate to which the screws are applied are exposed and a position of use in which it covers the backplate and conceals the screws. A locking ring 4 connected through the cover plate to the backplate releasably secures the cover plate in the position of use. The backplate has an externally screw-threaded spigot portion 7 for engagement by the locking ring which projects from the cover plate at a cylindrical boss portion 14 thereof which fits rotatably over a complementary basal portion of the spigot portion. A spring urging the handle to an initial angular position is accommodated in the spigot portion. <IMAGE>
Patent GB-2091069-A (GB)
Title: Video game machines
IPC: G07F17/32
Filed: 1982-01-12
Abstract: A video game machine is disclosed which is adapted to display commercial advertising material in periods between games.
Patent GB-2118248-A (GB)
Title: Double flow path gas turbine engine
Inventor: OLIVE CLIVE EDWARD
IPC: F02C3/14
Filed: 1982-03-23
Abstract: In a gas turbine engine provided with two parallel gas flow paths, one of the flow paths (path I) is through the H.P. compressor 6, combustor 8 and H.P. turbine 10 and the second flow path (path II) by-passes the H.P. compressor 6 and H.P. turbine 10. For take-off, path I is opened and path II is closed by moving doors 18,20,22 to produce high thrust for take-off. For supersonic flight, path II is opened and path I is closed by moving the doors 18,20,22 (thus by-passing the H.P. spool 6). <IMAGE>
Patent GB-2117685-A (GB)
Title: Die for casting a spindle
Inventor: TOOTH NORMAN STEVEN
IPC: B22D17/22
Filed: 1982-04-05
Abstract: To cast a spindle (12) having a bearing surface at each end, a die structure is used which consists of two parts (16, 18) which can be separated from one another to allow removal of a cast spindle; the two parts define an elongate passage (20) and a passageway for leading molten material to the passage; and there are two die elements (35, 37) which extend into opposite ends with an air gap (36) between each die element and the adjacent wall of the passage (20). The inner end 55 for of each element (35, 37) is of such a form that it defines a bearing surface at the end of a spindle cast in the die, the bearing surface being at an angle other than 90 DEG  to the longitudinal axis of the spindle. The spindle may have a body integrally cast with it e.g. of a wheel (14) gear, pulley etc. <IMAGE>
Patent GB-2119989-A (GB)
Title: Amusement machines
Inventor: NOBLE JOHN BARRY
IPC: G07F17/34
Filed: 1982-05-08
Abstract: A micro-processor based amusement machine comprises a video screen 10 on which five sets of twenty symbols (numerals) are displayed to a player. By means of twenty preselection buttons 28 the player can choose any five different symbols to make up a predetermined prize-winning combination for a game. The five selected symbols become displayed in a column 30. Upon depression of a start button 32 a random selector of the machine chooses one symbol from each column, illuminated dots 24 travelling alongside the sets of symbols and coming to rest adjacent the chosen symbols. Should the chosen combination correspond with the combination preselected by the player a prize is awarded by the machine. <IMAGE>
Patent GB-2123196-A (GB)
Title: Coin separator
Inventor: CHITTLEBOROUGH MICHAEL
IPC: G07D5/02
Filed: 1982-06-25
Abstract: A coin separator is arranged to separate three types of coins of differing thicknesses. The intermediate thickness coin II, which is of largest diameter, is diverted from a main coin path by its engagement with a ramp member 60 under which the other coins travel. The other coins are separated by directing them to a slot 62 through which the lesser thickness coins I fall, and over which the large thickness coins III pass. <IMAGE>
Patent GB-2125696-A (GB)
Title: Compositions containing quinoline derivatives
Inventor: LAVRETSKAYA ELIONORA FISHELEVN
IPC: A61K31/47
Filed: 1982-08-23
Abstract: A composition for stimulation of neuro-muscular transmission of smooth muscles and of excitation conductance in the peripheral and central nervous systems comprises 9-amino- 2,3,5,6,7,8-hexahydro-1H-cyclopenta (b) quinoline monohydrate hydrochloride:   <IMAGE> and a pharmaceutical vehicle.s
Patent GB-2128884-A (GB)
Title: Newspaper number game
Inventor: JOHNSON WILLIAM NEVIL HEATON
IPC: A63F3/08
Filed: 1982-10-18
Abstract: The game comprises a plurality of scoring indicia, selected indicia being collected and treated to achieve a desired result, each scoring indicia being so marked as to identify its place in a sequence so that no two like marked indicia can be treated to obtain the result. In a preferred embodiment, scoring indicia 5a-d, showing representations of dart boards, are printed daily in newspapers. Each scoring indicia has a mark 8 to show the day of issue. A selected indicia from each days' set of indicia is recorded, or affixed to a score sheet 1. An embodiment based on golf is disclosed. <IMAGE>
Patent GB-2113183-A (GB)
Title: Device for discharging a mixture of two liquids
Inventor: STRATFORD MICHAEL GEORGE
IPC: A01K13/00
Filed: 1983-01-04
Abstract: This invention relates to a device for the constant replenishment of an animal dipping bath, or for use in any situation where it is desired to have a concentrate diluted with a liquid with little or no liquid supply pressure. The device consists of a two- component rocking-pan arrangement 8 and 9 for receiving and discharging the mixture and a metering arrangement for discharging concentrate into the pan. The metering arrangement consists of a double acting single piston and cylinder pump, linked to the pan, and comprises a single piston 22, and a single cylinder partitioned by the piston into 2 chambers, 25 and 26 each chamber being capable of receiving and discharging quantities of concentrate. The arrangement of the pump is such that when one chamber is discharging concentrate into the pan the other is receiving concentrate from the supply line, and concentrate is delivered to that one of the two components which is about to be filled with diluent. The device is particularly useful for sheep-dipping purposes. <IMAGE>
Patent GB-2112709-A (GB)
Title: A card on which a signature is to be permanently received
Inventor: BAXTER LESLIE SIDNEY
IPC: B44F1/12
Filed: 1983-01-04
Abstract: A credit card (1) comprises a base member (2) to which is adhered a strip (3) of material which can produce an image in response to applied pressure, and a transparent film (4). The film (4) is preferably adhered to the base member (2) by heat treatment to cover the strip (3) and at least part of one side of the base member (2). Thus a signature can be produced on a strip which is very difficult to remove for fraudulent purposes. <IMAGE>
Patent GB-2116043-A (GB)
Title: Specula and suction drainage system
Inventor: GEORGE SAMUEL MUSA
IPC: A61B1/32
Filed: 1983-01-24
Abstract: A surgical speculum comprises two blades 1,3 pivotally interconnected by a pin 5. A single handle 2 projects laterally from the blade 1 and is flanked by a two-armed handle projecting from the blade 3. The speculum may be used in the condition shown as a double- bladed speculum or, with the handle 2 approximated to the blade 3, as a single-bladed speculum, i.e. with the blade 1 as the effective blade.   Further, a speculum or retractor 10 is provided with a suction system having a withdrawal orifice 48 to withdraw blood and fluids from the surgical field and an orifice which is in use juxtaposed against an internal organ or body tissue to hold the instrument and organ or tissue in the same relative positions. Such a retractor may have a single blade 16 to which a detachable second blade 36 may be affixed.   <IMAGE>
Patent GB-2135845-A (GB)
Title: Supply-line controlled bistable switch construction
Inventor: PHILP ROBERT
IPC: H03K3/356
Filed: 1983-03-16
Abstract: A two-wire multiplex signalling system incorporates a bi-stable switch circuit controlled by variations of the supply voltage, so that successive switches operate in cascade. Switching and latching of the FET's A, B is enhanced by means of the parasitic inter-electrode capacitances Cx, Cy. <IMAGE>
Patent GB-2116744-A (GB)
Title: Optical fiberguide
Inventor: COHEN LEONARD GEORGE
IPC: H01P3/20
Filed: 1983-03-09
Abstract: To broaden the range of wavelengths over which an optical fiber has low loss and low chromatic dispersion, four optically active cladding (22, 23, 24, 25) layers are employed. The relative refractive indices and radii of the core and claddings are advantageously selected (e.g. as shown) such that the chromatic dispersion curve has three zero crossings. <IMAGE>
Patent GB-2117863-A (GB)
Title: Pipe plug
Inventor: TROWSDALE F T
IPC: F16L55/132
Filed: 1983-03-23
Abstract: A pipe plug comprising a main body member 8 with a tapered portion 10, an elastomeric sealing ring 16 mounted on the taper and a locking member 18 connected to the main body by a coaxial threaded stud 20, the locking member preferably having a castellated circumferential flange with locking segments in the apertures of the castellations. When the plug is tightened in the pipe under pressure, the flange 32 urges the ring 16 into the gap between the taper and the pipe to seal the pipe, and the locking segments are forced outwardly to engage the internal surface of the pipe and lock the plug into position. <IMAGE>
Patent GB-2147475-A (GB)
Title: Differential stethoscope
Inventor: SLAVIN MARTIN J
IPC: H04R3/00
Filed: 1983-09-28
Abstract: A portable differential stethoscope includes small microphone elements (16, 18) which are attached to the stethoscope heads (12, 14) to pick up acoustic signals from the body. The sounds picked up by the stethoscope heads include body noise signals as well as heartbeat signals. Each stethoscope head and microphone element provides an output which is amplified in an individual amplifier (26, 28). The two amplified signals are inputted to separate terminals of a differential amplifier (32) through a gain and balance control element (36, 40). The differential amplifier outputs a difference signal which is amplified and inputted to an electrical headset or an electrical earphone element (44) which is acoustically coupled to the conventional acoustic tube. <IMAGE>
Patent GB-2154197-A (GB)
Title: Device for holding together a group of containers
Inventor: HEYNER JOHAN
IPC: B65D71/46
Filed: 1983-10-07
Abstract: A device for holding together a plurality of bottles comprises a sleeve having an upper wall and a lower wall, the upper and lower walls each having a plurality of bottle-neck support apertures with the apertures in the upper wall being in register with the apertures in the lower wall. Each aperture (B) in the lower wall is associated with a main support tab (t) engageable under the bead on a bottle neck and a pair of opposed auxiliary tabs (a' ,a<2>) which when engaging the bottle neck lie in an inclined position relative to the bottle axis to restrict lateral movement of the bottle. <IMAGE>
Patent GB-2136372-A (GB)
Title: A Motor Vehicle
Inventor: VAN DER LELY CORNELIS
IPC: B62D49/06
Filed: 1984-03-05
Abstract: A motor vehicle in the form of an agricultural tractor comprises steerable wheels (38) which are mounted on a tubular steering member (75). The steering member (75) is releasably fastened to a bearing comprising a bearing plate (82) disposed between retaining plates (87, 89) secured to the frame of the tractor. The retaining plates (87, 89) are spaced apart by a spacer plate (88). <IMAGE>
Patent GB-2139911-A (GB)
Title: Apparatus for mixing and dispensing material
Inventor: KEENAN RICHARD
IPC: B01F13/00
Filed: 1984-04-25
Abstract: The apparatus (1) which is particularly for mixing and dispensing animal feed and for trailing behind an agricultural tractor comprises a container (2) mounted on a chassis framework (3, Fig. 1) with ground engaging wheels (4, Fig. 1). The container (2) has a mixing compartment (9) and a dispensing compartment (10). A mixing rotor (45) mixes the animal feed in the mixing compartment (9), and the feed is discharged through a dispensing outlet (55) in the dispensing compartment (10) by an auger (57). A closure member (26) which is provided between the compartments (9) and (10) can be lowered to isolate them from each other when mixing the animal feed (Fig. 5), or raised to allow discharge of the mixed feed (shown here). The closure member (26) is moved by an hydraulic ram (29, Fig. 6). Helical blades or augers may also be used as the mixing means (45). <IMAGE>
Patent GB-2141060-A (GB)
Title: Improvements in or relating to tundish pouring
Inventor: PURDIE JOHN
IPC: B22D41/50
Filed: 1984-06-05
Abstract: The invention provides a tundish pouring arrangement including a tundish having at least one outlet (1) in the base thereof through which molten metal is arranged to flow when poured into a receiving container therebelow, the outlet having associated therewith an annular flow restrictor member (5) through which the outflowing metal is arranged to pass, the flow restrictor being of a material and a magnitude such as to be worn away by molten metal flow therethrough within a time range of between two to ten minutes. The restrictor member (5) may be positioned within an outlet nozzle of the tundish, or within a pouring tube below the tundish. <IMAGE>
Patent GB-2143435-A (GB)
Title: Copper heptonate complexes for treating trace element deficiency
Inventor: BALLANY DR J M
IPC: C07C59/105
Filed: 1984-07-05
Abstract: Copper heptonate complexes and compositions comprising the complexes are provided for use in treating copper deficiency in animals such as by raising blood-copper status in cattle or preferably sheep. The complexes may be made by reacting soluble copper salts with, for example, sodium heptonates. Preferred administration is by intramuscular injection of unit dose containing up to 25 mg of copper. A stabiliser may be present to counter deposition of insoluble cuprous salts.
Patent GB-2147142-A (GB)
Title: Cathode-ray tube faceplate panel with an apparently planar screen periphery
Inventor: D AMATO RALPH JAMES
IPC: H04N5/64
Filed: 1984-08-31
Abstract: Improvement is provided in the appearance of a color picture type cathode-ray tube including rectangular faceplate with an exterior surface having curvature along both the minor (Y-Y) and major (X-X) axes. At least in the center portion of the faceplate, the curvature along the minor axis is at least 10 percent greater than the curvature along the major axis. Points on the exterior surface near the ends of the major axis, at the edges of the screen, lie in a first plane (P1) perpendicular to the central axis (Z-Z) of the tube; points on the exterior surface near the ends of the minor axis, at the edges of the screen, lie in a second plane (P2) which is spaced from and parallel to the first plane; and points on the exterior surface near the ends of the diagonals of the rectangular faceplate, at the edges of the screen, lie in a third plane (P3) which is spaced from and parallel to the first plane. The three planes are spaced from the center portion of the faceplate in the order of second plane, first plane and third plane. Further relative dimensions are detailed. <IMAGE>
Patent GB-2149513-A (GB)
Title: Proximity sensor
Inventor: STOLL KURT
IPC: G01B17/00
Filed: 1984-10-15
Abstract: A proximity sensor (1) has a housing (2) and a detection means (8) placed on an outer face of the housing (2). The detection means (80) is orientated so as to be normal to the length direction of the housing and on the side thereof. The housing (2) is generally cylindrical and a male thread (3) on it. One end of the housing has a flat (7) so as to be in the form of a segment (6) of a cylinder. The detection means is mounted in or on the flat (7). When the sensor is used e.g. for sensing the passage of a piston rod, both the housing of the sensor and a connecting cable (5) may be disposed in a direction parallel to the travel of the piston rod. <IMAGE>
Patent GB-2155967-A (GB)
Title: Drainage trap
Inventor: JANSSON JAN OLOF
IPC: E03F5/04
Filed: 1985-01-23
Abstract: In a floor drain, comprising a mounting flange (2), a drain trough (29) joined to the mounting flange and provided with a water seal (28), an inlet part included in the mounting flange, an outlet pipe (33) joined to the drain trough and a clamping ring (22) arranged inside the mounting flange, the mounting flange in its peripheral part is formed with increased material thickness for obtaining a grinding margin and several fastening lugs (5, 14) project outside the outer boundary surface (16) of the mounting flange (2), said fastening lugs being oriented in the same plane as the lower boundary surface (3) of the flange. <IMAGE>
Patent GB-2160373-A (GB)
Title: Electric inverters and converters
Inventor: GREEN WALTER BATTMAN
IPC: H02M7/5387
Filed: 1985-06-12
Abstract: In an electric control system for producing an a.c. output current of desired waveform by pulse width modulating an input direct current, the width of a desired control pulse in the modulating signal is determined from factors P1', P2' which are derived from factors P1, P2 determining the width of the preceding control pulse by the equations  P1' = P1 + kP2  P2' = P2 = kP1'  where k is a factor determining the frequency of the output a.c. Initial values of P1, P2 from stores 40, 41 are fed to temporary stores 46,44. The value P2 is then multiplied at 45 by the factor k from store 42, the result added to P1 at 48 and the sum then returned to update store 40 to P1'. Control unit 49 then switches the circuit so that P1' can be multiplied by k in 45, the result subtracted from P2 at 48 and the difference returned to update 41 to P2'. The cycle then repeats for the next pulse values. The various values of P1, P2 are used to produce a 2-phase output to control a motor and the arrangement may be modified for a polyphase output. <IMAGE>