baber/WOPTO huggingface dataset:
Patent GB-2001108-A (GB)
Title: Water distributor for a washing machine
IPC: D06F39/02
Filed: 1978-07-10
Abstract: A washing machine having a water distributor which serves to supply four outlet ducts 8, 5, 6, 7 each leading to a washing agent dispenser from two inlet ducts 1, 2 each of which is controlled by an electromagnetic valve 11, 12. Each water inlet can supply two outlets, the corresponding jet being intercepted by a deflector flap 3, 4 whose position determines which outlet is to be supplied. The two flaps, which cooperate with the two inlets, are mechanically coupled, e.g. by a link 9. From a rest position, which is obtained by an resilient return force, exerted by a spring 10, each inlet jet moves the movable system 3, 4, 9 into one of the two deflected positions which it can occupy. The sequential supply of one inlet and then the other, and the other way around, enables four outlets to be successively supplied with water. <IMAGE>
Patent GB-2027097-A (GB)
Title: Improvements in and relating to Machines for Picking Up Material from a Surface
IPC: E01H12/00
Filed: 1978-08-04
Abstract: A machine for picking up material, e.g. debris, from a surface, e.g. a sandy beach comprises an endless conveyor 6 provided with projections 12 and supported on a chassis movable along the surface. One end of the conveyor is arranged adjacent the surface so that debris on the surface is engaged by the projections as they move into the lower run of the conveyor. A support surface 8 is provided below the lower run of the conveyor to support debris picked up by the projections, the debris being discharged at the other end of the conveyor into a receptacle. <IMAGE>
Patent GB-2086770-A (GB)
Title: Separator cascade
IPC: B01D59/20
Filed: 1978-08-30
Abstract: This invention relates to a method of and a device for operating a separation cascade for the separation of gaseous mixtures, especially mixtures of isotopes into a lighter and a heavier fraction. The mixture of substances is separated in a first cascade stage 1, the lighter fraction being subjected to a plurality of enrichment (2) and depletion (3) stages, and fed to the light and heavy cascade outlets 6, 7. The mixture of substances to be separated is split into two controllable partial streams. One partial stream 5 is fed to the first stage and the other 8 or 9 to an enrichment or depletion stage adjacent to the first stage, subject to the concentration to be maintained at the heavy cascade outlet. The bulk stream to be fed is set according to the concentration of the light fraction to be maintained at the light cascade outlet. <IMAGE>
Patent GB-2004464-A (GB)
Title: Method of testing inflammation
IPC: A61K51/08
Filed: 1978-09-28
Abstract: A method for testing and evaluating the inflammation of skin tissue or mucosa of live animals involves intravenously injecting radio-actively labelled serum albumin and monitoring the radioactivity of the blood and of the tissue or mucosa. The method is of use in testing the anti-inflammatory action of drugs.
Patent GB-2008247-A (GB)
Title: Detecting or quantifying substances using labelling techniques
IPC: G01N33/542
Filed: 1978-11-14
Abstract: A method of quantifying a protein, antibody, antigen or hapten includes linking the substance to a chemi-luminescent or bio-luminescent label and triggering a luminescent reaction by the addition of an oxidising agent or a catalyst. The emitted light is observed and this provides information about the substance of interest. In one aspect, the invention employs a luminescent reagent which consists of antibodies labelled with a luminescent material such as luminol to quantify antigens in an immunological assay, in which the luminescent labelled antibodies selectively bind to the antigens and the amount of light emitted is measured.
Patent GB-2034914-A (GB)
Title: Refractometers
IPC: G01N21/43
Filed: 1978-11-21
Abstract: A critical angle refractometer uses a dense medium of unknown refractive index and a rare medium e.g. air of known index. The invention is applicable to measurement and identification of gems, and utilizes the phenomenon of total internal reflection taking place as light travels from the facetted gem into the surrounding air. Refractive indices up to about 2.8 may be measured without the use of a refractive index liquid. Using water as the refractive index liquid the upper limit may be extended to 3.8. The angles between various pavilion facets and the table facet can also be measured by the refractometer. As shown the gem is placed on a rotatable stage S and illuminated horizontally through a hole H. An eyepiece E is moved along a slit B until an image of H is visible and a facet angle value theta p is then read off a scale alongside the slit. The gem is then illuminated from above or below and the eyepiece E is moved until darkness is reached. A second angle reading  theta 1 is taken and the refractive index of the gem determined from  theta 1 and  theta p. <IMAGE>
Patent GB-2037899-A (GB)
Title: Ocean Wave Energy Device
IPC: F03B13/18
Filed: 1978-12-22
Abstract: A buoy type energy extraction device is provided in which the natural frequency of vertical oscillation of the buoy is mechanically altered to at least partially conform to the wave frequency occurring during a period of operation, whereby the maximum amount of energy available from each successive wave front is extracted. The device includes a buoy 18, a vertically oscillating rod 17 supporting said buoy, a horizontally oriented motion output means 22, 24 driven by said vertical rod, and a braking means 30, 31 for arresting movement of the buoy at its uppermost limit of travel during any given oscillation, said braking means holding the buoy until the buoy may be dropped under gravity into a following wave trough. <IMAGE>
Patent GB-2044025-A (GB)
Title: Standard frequency generator
IPC: H03L7/20
Filed: 1979-01-03
Abstract: A standard frequency generator includes a phase-locked oscillator (1) which is adjustable to the m<th> harmonic of a reference frequency (fr) which is the output from a synthesizer (3) adjustable in frequency steps of  delta fa/m by means of a logic circuit (4) in such a way that the reference frequency is that one which gives an output frequency from the phase- locked oscillator closest to the required output frequency. <IMAGE>
Patent GB-2013967-A (GB)
Title: A plasma X-ray laser
IPC: H05G2/00
Filed: 1979-01-31
Abstract: A Plasma X-ray laser comprises a pumping laser with an elongated CO2, gas or Nd-glass active material 11 of annular shape, and a plasma chamber 10 for X-ray generation located within the resonator 13, 14 of the pumping laser and containing a heavy gas 8. Means are provided for converting the pumping wave generated by the pumping laser into a convergent annular beam of a TMO mode wave and for making this wave a standing wave. The converting means includes a conical surface of the solid active material or a plane-conical lens 15 separating the annular shaped pumping laser active material from the plasma chamber, the apex angle of said conical surface or lens being equal to the Brewster angle for the refractive index of the active material or of the lens, whereby the plasma of the heavy gas is confined at points located on the axis of the convergent annular beam. A X ray permeable window allows the X rays reflected by a crystal mirror 16 to radiate out of the plasma chamber. <IMAGE>
Patent GB-2020872-A (GB)
Title: Ambient Noise Intruder Alarm
IPC: G08B13/16
Filed: 1979-04-30
Abstract: An intruder alarm apparatus which does not consume considerable energy during the watch period and does not depend on itself radiating energy. Two receivers R1 and R2 inside and outside a closed space S are responsive to ambient or environmental noise and a comparator A provides an alarm signal when the difference between the outputs of the two receivers falls below a threshold, indicating that the wall W to the space has been breached as at time T. Alternatively, the two receivers may be spaced apart within the space and the comparator provides the alarm signal when the difference between the two outputs rises above a threshold, indicating that an intruder is present and closer to one receiver than the other. <IMAGE>
Patent GB-2026235-A (GB)
Title: Light emitting diode mounting structure for optical fiber communications
IPC: H01L33/00
Filed: 1979-06-04
Abstract: A LED package comprises a cylindrical metal base mount 200 with a recess 2a in which are disposed an LED pellet 1 connected by a lead wire 5 to an insulated electrode 3. The package nests in a bore 91 in a receptacle. An optical fibre 10 terminated in a sleeve 11 fits into a smaller bore 92. The end of the sleeve abuts the top surface 18 of the base mount to establish a minimum and moreover fixed distance between the fibre end and the pellet 1.The sleeve is larger than the recess 2a so there is no possibility of damaging the pellet 1 or lead wire 5 which are wholly within the recess. A glass bead lens may be disposed on the pellet, within the recess. <IMAGE>
Patent GB-2046668-A (GB)
Title: A ribbon transport device for a typewriter or printer
IPC: B41J33/04
Filed: 1979-08-24
Abstract: The device is for a typewriter or printer which prints alternate lines in different directions and comprises a rocker 6 carrying a drive pinion 20 which drives a drive coupling element 4 for driving a transport wheel 3 of a ribbon always in the same sense irrespective of the direction of printing. A frictional drive 14, 15 drives the drive pinion 20 and causes the rocker 6 to pivot so that the pinion 20 drives the coupling element 4 either directly or through an intermediate gear wheel 24 depending upon the direction of printing. <IMAGE>
Patent GB-2035033-A (GB)
Title: Feeding apparatus for dogs
IPC: A01K5/01
Filed: 1979-10-29
Abstract: A vertically adjustable frame on a stand 12 has two rings which are connected together and which support bowls 34. On each ring a retaining element 28 engages over the edge of the bowl 34. A clamping device 36 between the rings is movable from a clamped position in which a clamping member 38 engages over the edges of the bowls 34 to an open position in which the clamping member 38 does not overlap the edges of the bowls 34. <IMAGE>
Patent GB-2260185-A (GB)
Title: Metal target discriminator
Inventor: SHILLAM NORMAN FREDERICK
IPC: F42C19/07
Filed: 1979-12-06
Abstract: The invention provides a metal target discriminator for a bomb or other missile warhead. The discriminator includes a pair of electrically conductive probes 5, 6 on the missile nose, one probe composed of a dissimilar substance to the other and which, when in contact with a metal target, form part of a thermocouple circuit, and means 9, connected to the probes for detecting a thermoelectric signal generated when the probes strike a metal target. Preferably one of the probes is composed of steel and the other tungsten carbide. <IMAGE>
Patent GB-2039783-A (GB)
Title: A Rotary Blade Assembly and a Pelletizer Apparatus Provided with Such an Assembly
IPC: C08G85/00
Filed: 1979-12-14
Abstract: An elongated rotary blade assembly 12 received within an outwardly open elongated channel 18 extending across the face of a rotary member 10 of a pelletizer assembly for co-operating with a fixed knife structure 16 for pelletizing material, said blade assembly 12 comprising a pair of circumferentially spaced elongated cutting blades 20, 22 seated on respective spaced portions 30,38 of the channel 18 with an elongated retaining wedge member 24 disposed between the blades 20, 22 for the frictional retention of the blades 20, 22, the wedge member 24 having a bearing surface 52 for the blade 20, a second blade bearing surface 58 engaging an upper side transverse surface of the blades 22, and a bearing surface 60 spaced inwardly from the surface 58 and engaging a surface 42 of the channel 18. <IMAGE>
Patent GB-2041369-A (GB)
Title: 4-Phenylthioalkanesulfonanilides and Derivatives thereof Useful as Plant Growth Modifiers or Herbicides
IPC: A01N41/10
Filed: 1980-01-28
Abstract: Compounds of the formula   <IMAGE> wherein R is alkyl containing from 1 to 4 carbon atoms or monohalomethyl, A is halogen or CF3, B is hydrogen or halogen and n is 0-2, provided that when A is CF3 and B is hydrogen, R cannot be methyl, or agriculturally acceptable salts thereof are active as plant growth modifiers, e.g. herbicides, and may be obtained by partial hydrolysis of the corresponding bis(sulfonyl) compounds in which n is zero, followed by oxidation when compounds in which n is 1 or 2 are required.
Patent GB-2045387-A (GB)
Title: Lip seal ring
IPC: F16J15/32
Filed: 1980-01-29
Abstract: A seal particularly for use in an hydraulic jack in a high temperature environment, and generally frusto- conical in shape with an anchoring flange (10) at one end and tapering down in thickness from that end to a free end thereof. The dimensions of the seal are, with respect to the radius of the cylindrical surface upon which the free end is intended to seal:  free length (L) = 0.6-1.0 times that radius,  free end wall thickness (S1) = 0.01-0.02 times that radius, wall thickness adjacent the anchoring flange (S2) = 0.05-0.08 times that radius,  bore taper (t) = 0.005-0.008 times that radius,  interference = 0.0005-0.002 times that radius. This ensures that the seal exerts substantial uniform pressure over its region of contact with the surface of a cylinder or piston rod. The seal may be of metal, plastics or composite material, and its operative surface may be coated, e.g. with silver. <IMAGE>
Patent GB-2044653-A (GB)
Title: Tube drawing tool
IPC: B21C3/16
Filed: 1980-02-29
Abstract: A tube drawing tool for use in the drawing of nozzled tubes has a leading, nozzle-engaging end which has at least one axially projecting portion (13) which is of reduced cross-section as compared with the remainder of the tool. This construction provides at least two nozzle engaging portions (14 and 15). <IMAGE>
Patent GB-2072852-A (GB)
Title: Gas leakage detectors
IPC: G01M3/20
Filed: 1980-03-12
Abstract: A gas leakage detector comprises a solid state gas sensor (3) having a sintered metallic oxide block operative to change thermal conductivity by chemical absorption thereto and a wire to transfer the change of said thermal conductivity to an electrical signal. A gas sensing part of the gas sensor (3) is disposed in a gas intake path (4, 5). A suction pump (7) is connected to the gas intake path in a manner to draw a gas to be detected into the gas intake path thereby to contact the gas sensor (3). A voltage to frequency converter (VFC) produces output pulses at a frequency responsive to an input voltage from the gas sensor (3). The pulses from the converter (VFC) trigger an off- delay timer (ODT) which controls an oscillator (OSC) connected to an alarm LED (10) and a speaker (12) whereby the detection of gas causes the generation of light and sound alarms which pulsate at a frequency proportional to the gas concentration. <IMAGE>
Patent GB-2050168-A (GB)
Title: Ethynyl compounds as herbicides
IPC: C07C43/23
Filed: 1980-04-02
Abstract: A method of controlling undesired plant growth at a locus, which comprises applying to that locus a ketone of the general formula   <IMAGE> in which A represents a thienyl group, or a phenyl group which may be unsubstituted or substituted by one or more of the same or different substituents selected from halogen atoms, hydroxy, nitro, alkyl, haloalkyl, alkenyl, alkoxy and alkenyloxy groups, and phenoxy and benzyloxy groups which may be unsubstituted or substituted by one or more of the same or different substituents selected from halogen atoms and hydroxy, nitro, alkyl, haloalkyl, alkenyl, alkoxy and alkenyloxy groups.
Patent GB-2075736-A (GB)
Title: Optical display device
IPC: G02B6/42
Filed: 1980-04-12
Abstract: An optical display device displaying a lit-up symbol has a plurality of light sources, each feeding a group of light guides having their output ends distributed over the display area to define a respective symbol. The output ends of certain guides 3, 4, 5, 6 from one group are brought together with the output ends of certain guides of one or more other groups in a termination. A frusto-conical lens element 2 is arranged to receive light from the termination, the smaller end face of the lens element being disposed adjacent and facing the termination. The dimensions of the lens element are such that the divergence from axis of the beam from the larger end of the lens element is less than that from the end of a light guide and the size of the light spot on the larger end of the lens element is larger than the light spot at the light guide termination. <IMAGE>
Patent GB-2075134-A (GB)
Title: Emergency oil/mist system
IPC: F16C33/66
Filed: 1980-04-30
Abstract: An emergency oil/mist system is embodied in the main lubrication system for a bearing or gear box assembly of a gas turbine engine, and includes an auxiliary reservoir 40 interconnected between the main source of pressurized lubricant and an air aspirating nozzle 22 which is capable of either providing a stream of oil to the bearing, or a mist of lubricant to the bearing. A source of pressurized air is connected to the air aspirating nozzle through a control piston valve 50, and the latter also is provided in a vent line extending between the auxiliary reservoir and the atmosphere. During normal operation, the source of pressurized oil is connected through the auxiliary reservoir to the nozzle. Upon failure of the pressurized lubricant source, the valve is actuated to connect the auxiliary reservoir to atmosphere, and simultaneously connect the pressurized air source to the nozzle. The pressurized air passing through the nozzle aspirates or draws oil from the emergency reservoir to provide a spray or mist. The emergency system produces an ultrasonic impingement of the oil as it leaves the air aspirating nozzle so as to create extremely small droplets of uniform distribution of oil on the bearing. <IMAGE>
Patent GB-2077555-A (GB)
Title: Electronic tally apparatus
IPC: F17C13/00
Filed: 1980-05-27
Abstract: An electronic tallying apparatus in which a radio frequency transmitter (10) broadcasts an interrogation signal comprising a sequence of equally spaced r.f. pulses. Transponders (12) receiving the interrogation pulses count (17) said pulses and when the count reaches a value unique to a transponder the transponder emits a response pulse. In the interrogating apparatus a counter (18) is started and counts in synchronism with the interrogation pulses. When each response pulse is received from a transponder a gate (19) is opened, allowing the count reached at that time to be stored in a buffer (20) prior to being decoded (21) into an identity corresponding to that of the transponder. The identities of all transponders responding to an interrogation signal can then be printed out (22). <IMAGE>
Patent GB-2083517-A (GB)
Title: An improved fascia gutter
IPC: E04D13/064
Filed: 1980-08-28
Abstract: A fascia gutter assembly including:  a channelled gutter with a bottom and front and rear flanges,  a fascia panel, mounting means for mounting the gutter and fascia panel on a roof structure in such manner that the fascia panel is below and substantially co-planar with the front flange of the gutter, and catch means for releasably engaging the top part of the fascia panel with the bottom part of the gutter. <IMAGE>
Patent GB-2082652-A (GB)
Title: Method and apparatus for constructing underground structures
IPC: E21D9/00
Filed: 1980-08-30
Abstract: Various methods and apparati are disclosed for the construction of underground structures such as tunnels, by advancing a plurality of bodies 11, 12, 13,...arranged end-to-end, one-at-a- time. Between certain of the bodies there are disposed advancing facilities, such as pulling/traction jacks 2 between bodies 11 and 12, and thrusting jacks 3 between bodies 12 and 13. Connecting members 4 in conjunction with fasteners 61, 62,...and traction members 5 in conjunction with fixing pieces 7 may be used selectively to link together certain groups of the bodies so as to allow the advancement thereof one-at-a-time. The advancing facilities 2,3, the fasteners 61, 62,...and the fixing pieces 7 are selectively operated such that when one body is being advanced, at least two other of the bodies, or one other body and a fixed facility (not shown), provide a reaction to the force required to advance said one body. <IMAGE>
Patent GB-2059891-A (GB)
Title: Motor vehicle roof
IPC: B60R13/02
Filed: 1980-09-12
Abstract: The roof has an outer sheet metal skin (12) of vaulted shape and an inner head liner in the form of a rigid plastics shell (15) which is vaulted to generally conform to the vaulted shape of the outer skin. Substantially the entire shell is spaced from the outer skin with an air cushion therebetween and the rim of the shell has a flexible sealing bead (16) which bears against the outer skin to provide a seal between the shell and the outer skin. <IMAGE>
Patent GB-2084557-A (GB)
Title: Production of Granular Fertilizer Materials
IPC: B01J2/28
Filed: 1980-10-03
Abstract: In the production of a granular fertilizer material by granulating powdered raw material for the fertilizer in a granulator in the presence of moisture, the granulation is carried out in the presence of a granulation aid which is a material comprising one or more alkali metal or ammonium salts of long chain fatty acid and obtained by the saponification of an oxidised product of a hydrocarbon. The granulation aid which is preferably one derived from an oxidised paraffinic wax, serves to reduce the amount of fines and/or oversize product produced in the course of granulation and, thus, reduces the amount of material to be recycled through the granulator. The granulation aid is conveniently introduced into the granulator as an aqueous solution or emulsion thereof.
Patent GB-2059829-A (GB)
Title: Drill chuck with cutting edges
IPC: B23B51/10
Filed: 1980-10-08
Abstract: A drill chuck of the guided multi-jaw type in which the jaws 12 may be simultaneously retracted and moved apart, or advanced and brought together, to accept and hold drills 20 of any of a wide range of diameters, has cutting edges 19 provided on the tips of the jaws, each cutting edge abutting, and being substantially in a plane radial to, a drill held by the chuck. For countersinking, each cutting edge is at an acute angle to the drill, and for spot-facing the cutting edges are perpendicular to the drill. <IMAGE>
Patent GB-2086074-A (GB)
Title: Electro-optical terminations
IPC: G02B6/42
Filed: 1980-10-16
Abstract: An electro-optical termination is provided which enables an optical fibre to be efficiently coupled to a receiving or transmitting electrical circuit. The optical fibre may be a single strand or may consist of a large bundle of individual fibres. It is important to accurately align the optical fibre with an electro-optical converter and to facilitate this alignment, the converter is mounted on a small substrate 6, which is spaced apart by a predetermined amount from the end of a short fixed length 8 of optical fibre forming an integral part of the termination. <IMAGE>
Patent GB-2086959-A (GB)
Title: Tunnel lining rings
IPC: E21D11/08
Filed: 1980-10-27
Abstract: A tunnel lining ring is made up of a plurality of pre-cast arcuate concrete tunnel lining segments (10, 11). The segments providing the lower part of the ring are formed with a recess (17) around the inner surface thereof to receive a secondary lining (18) in the completed tunnel to enable the inner surface of the invert of the tunnel to be graded as required and hence eliminate irregularities caused during the construction of the tunnel. <IMAGE>
Patent GB-2090651-A (GB)
Title: Improvements Relating to Heat Exchangers
IPC: F28F1/10
Filed: 1980-12-17
Abstract: A heat exchange tube, especially of the extruded multibore type, has a series of depressions (e.g. 24, 32) formed in opposite faces thereof such that the depressions project into the fluid conducting bores (e.g. 10, 12), the arrangement being such that the depressions in one face are staggered lengthwise relative to those in the opposite face whereby the flow passages in the bores 10, 12 are of a generally sinuous configuration. <IMAGE>