baber/WOPTO huggingface dataset:
Patent GB-2014754-A (GB)
Title: Interferometer
IPC: G01J3/453
Filed: 1979-02-13
Abstract: An interferometer comprises a rotating prism P1 having a rhomboidal or rectangular base, and an arrangement of stationary optical elements P2, P3, L1, L2 for directing light beams 2, 3 into the prism P1 and bringing the beams 4, 5 leaving the prism into interference. At a certain position in each revolution of the prism, the optical paths of the two beams, inside the prism, have equal lengths, and constitute a mirror reflection of each other in relation to the symmetry axis passing through the base of the prism. All the stationary optical elements can be connected adhesively into a single optical block by glass spacing elements. In Fig. 1 a glass plate P1 and mirrors L1, L2 direct light into the prism and then the mirrors direct the light leaving the prism to interfere at a second glass plate P3. In Fig. 2 (not shown) two stationary prisms (P2, P3) direct light into the rotating prism (P1). The light leaving the rotating prism (P1) is directed back by two mirrors (L1, L2) and interferes between the stationary prisms (at W).   The interferometer according to the invention finds particular application in Fourier spectrometers. <IMAGE>
Patent GB-2023468-A (GB)
Title: Hollow workpiece holder for blast cleaning
IPC: B24B41/06
Filed: 1979-02-16
Abstract: A fixture for holding hollow articles to be blast cleaned comprises a spindle 1a-c and a co-axially located pusher rod or bar 5 which is movable relative to the spindle along the axis thereof, the spindle carrying means for supporting an article to be blast cleaned, said means being movable by said pusher rod or bar relative to the spindle such that in a first position the means will grip the article to be blast cleaned in an inverted position, and in a second position will release the article therefrom. The means comprises two half-pans 9 connected by a resilient strip 17, hinged to diametric bars 8 attached to the spindle, and each carrying a half-annulus 12 with an article gripping rubber strip 15. Upon pusher rod movement against a spring, the halves hinge outwardly. The half-annuli are quickly releasable from the half-pans for replacement. <IMAGE>
Patent GB-2016368-A (GB)
Title: Method of making a sailmaking fabric
IPC: B63H9/06
Filed: 1979-03-07
Abstract: A sailmaking fabric is assembled from two superposed woven fabric layers such that the warp and weft of one lie at an angle to the warp and weft, respectively, of the other. The two layers are flexibly fixed together by adhesive and permanently held in place by stitch seaming into the sail sheet. <IMAGE>
Patent GB-2029067-A (GB)
Title: Decorative display device
IPC: G09F13/12
Filed: 1979-04-04
Abstract: A decorative display device has front and rear spaced apart reflective surfaces (1, 2) and one or more light sources (9). The or each light source is arranged to give multiple images (10) with the two reflective surfaces, and the front reflective surface (2) is of the "two-way" kind so that it normally acts as a mirror but it reveals the multiple images when the or each light source is illuminated. <IMAGE>
Patent GB-2046650-A (GB)
Title: A Plane
IPC: B27G17/02
Filed: 1979-04-17
Abstract: A block plane 1 is characterised in that a transversely extending rearward, portion 9d of a lateral adjustment lever 9 is arranged between a cutter 3 and a cutter- adjustment slide 8 which is advanced and retracted by a cutter-adjusting screw 7. A dog 8a of the slide 8 projects through an aperture 9e in lever 9 between said rearward portion 9d and a forward portion 9a of lever 9, pivoted on clamping lever screw 6, and its side portions of lever 9. Aperture 9e is long enough and wide enough to accommodate the advancement and retraction of dog 8a and the side-to-side pivoting of lever 9. <IMAGE>
Patent GB-2043758-A (GB)
Title: Space framework
IPC: E04C3/04
Filed: 1979-05-17
Abstract: A space framework of rectangular cross-section consists of longitudinal bars 1-4 disposed in the corners of the section, and struts disposed in all sides of the section forming lattices together with the longitudinal rods in the corners. According to the invention, the longitudinal bars consist of metal profiles of L-shaped cross-section which surround the corners. The longitudinal bars are provided, in both shanks of the L-profile, with series of holes disposed at predetermined mutual spacing. Moreover, the framework is, at least at one end, provided with a frame 11 connected to the longitudinal rods and having the size of the rectangular cross-section. This frame is provided with holes 12 adapted to correspond with the holes in the longitudinal rods. <IMAGE>
Patent GB-2028081-A (GB)
Title: Bag for mushroom cultivation
IPC: A01G1/04
Filed: 1979-08-14
Abstract: In the fungus bed cultivation of mushrooms, the effect of bacteria and microbes infectious to mushroom cultivation is prevented by the use of a plastics bag characterized in that at least part of the bag is formed from a porous plastics film material which is permeable to gas but is impermeable to such bacteria and microbes. In one embodiment the bag is formed of a gas impervious plastics film provided with an aperture and which has a sheet of the porous plastics material attached to cover the aperture, and in another embodiment the said bag is formed from a composite strip of gas impervious plastics film and said porous plastics material. <IMAGE>
Patent GB-2029102-A (GB)
Title: Integrated circuit device
IPC: H01L21/331
Filed: 1979-08-24
Abstract: Integrated injection logic (IIL) elements (15) and linear circuit elements (16) are formed in sections of epitaxial layer 12 isolated by regions 13 on a semiconductor chip (11) of the opposite conductivity type. The vertical transistor of the (IIL) element has its collector uppermost and its base region (18) includes an internal base section (18a) and an external base section (18b). The external base section has a deeper diffusion depth and usually a higher impurity concentration than those of the internal base section and the base region 20 of the bipolar transistor of the linear circuit element. A buried region 141, 142 of the same conductivity type as the epitaxial layer underlies each isolated section of the latter. <IMAGE>
Patent GB-2033177-A (GB)
Title: Circuit breaker with undervoltage release
IPC: H02H3/06
Filed: 1979-09-14
Abstract: A circuit breaker has an under voltage release mechanism including a trip spring, a solenoid coil UVR, and an electrical circuit for resetting the solenoid after the undervoltage release mechanism has been tripped, the circuit supplying coil UVR with an intermittent high power pulse when the voltage is above a first predetermined magnitude to pull the solenoid in against the spring, and also supplying a continuous lower level of power to coil UVR sufficient to retain pull-in when the voltage is above a second predetermined magnitude. <IMAGE>
Patent GB-2033913-A (GB)
Title: Thermosetting imide resins
IPC: C08G73/12
Filed: 1979-10-01
Abstract: Thermosetting imide resins, obtained by reaction between a mixture of an N,N'- bisimide of an unsaturated C2 to C4 dicarboxylic acid and a mono-imide of such an acid with a dihydrazide of an organic dicarboxylic acid, the ratio of the number of moles of unsaturated imide to the number of moles of hydrazide groups in the mixture being from 1.1 to 100. Such resins without the monoimide are the subject of Application 7847338 (2011920A); the use of the monoimide gives optimal flow properties.
Patent GB-2037412-A (GB)
Title: Electric arc furnace
IPC: F27B3/08
Filed: 1979-12-05
Abstract: The invention is to provide a furnace construction which facilitates repair and a secondary objective is to provide for the provision of water cooled panels without the need to modify the furnace roof ring. The primary objective is met by a furnace lining in which the upper part of the furnace walls (3) of refractory material have an upwardly and outwardly sloping stepped configuration overlaid by a sloping refractory monolith (4). The secondary objective is met by so arranging the water cooled panels (6) that their lower edge lies behind the inside edge of the refractory wall, each water cooled panel sloping inwardly from bottom to top so that the top lies inside a conventional roof ring. <IMAGE>
Patent GB-2040605-A (GB)
Title: Electric plugs
IPC: H01R13/04
Filed: 1980-01-08
Abstract: In an electric plug having at least two line pins 2 projecting from the insulating plug body 1, e.g., a 13 amp three pin plug, each line pin 2 is, over a substantial part of its length adjacent the plug body 1, of reduced overall cross-section and has a separate sleeve 4 of plastics insulating material heat-shrunk about and gripping the reduced part of the length of the pin. The heat-shrunk sleeve 4 is so shaped and dimensioned that its outer surface forms a smooth continuation of the surface of the unreduced part of the length of the pin. The pin may be of solid or hollow form. <IMAGE>
Patent GB-2040053-A (GB)
Title: Partial discharge testing systems
IPC: G01R31/12
Filed: 1980-01-09
Abstract: To enable the size of coupling capacitors between the high voltage side of a component under test and a discharge detector to be reduced, a coupling unit is utilised having a step- up transformer (T1) whose primary is connected to the high voltage side of a test sample and whose secondary is connected by way of a coupling capacitor (Cb) to the primary winding of a step-down transformer (T2). The secondary of the step-down transformer (T2) is connected to a discharge detector. Modifications are described for use when two, or three or more samples of insulation are to be tested. <IMAGE>
Patent GB-2037185-A (GB)
Title: Dielectric product and process for the preparation thereof
IPC: B05D3/12
Filed: 1979-06-04
Abstract: An improved dielectric printing paper (10) and process for making the same, characterized by excellent resolution, contrast, and feel. The paper incorporates an inorganic salt such as magnesium chloride as a conductivity-providing ingredient. The dielectric coating (12) is formed with a high loading of inorganic fillers (16) and is applied by a dry process to form a discontinuous dielectric coating (12) on the conductive paper substrate (14).
Patent GB-2073371-A (GB)
Title: Valves
IPC: B67D1/12
Filed: 1980-03-15
Abstract: A valve 66 is provided for connection to a liquid dispensing system having a container for liquid, connected via a conduit 70, a dispensing head attached to tube 30 and a pump 28 for pumping liquid from the container to the head, the valve 66 being rotatable between a forward position in which the pump operates normally and a reverse position in which the valve causes the pump to pump liquid in the reverse direction, from the dispensing head to the container, so that liquid can be returned to the container from the dispensing head, for example prior to a cleaning operation. The valve may be moved manually or automatically. It may be used in connection with the cleaning of beer pipes, for example in a public house, for the returning of beer to a delivery vehicle, or whenever it is desired to reciprocate fluid along a path using a source of motive power which can only drive fluid in one direction. <IMAGE>
Patent GB-2054797-A (GB)
Title: Piston ring
IPC: F16J9/26
Filed: 1980-06-05
Abstract: A piston ring has a bearing surface which is coated with a hard metal or a hard metal alloy, graphite then being resin bonded to the coated surface.
Patent GB-2083076-A (GB)
Title: Composite electrodeposited coating and a method of forming such a coating
IPC: C25D15/02
Filed: 1980-07-02
Abstract: A composite electrodeposited coating and a method of forming such a coating. The coating comprises a metal matrix deposited from a plating bath and incorporates particles which are insoluble in the bath. The particles include a chromium-containing substance, an aluminium-containing substance, and an oxide of a rare earth metal, a metal from group IV of the Periodic Table or aluminium oxide. Such a coating is highly resistant to oxidation and/or corrosion for example in jet or rocket engines and is capable of withstanding thermal cycling under such conditions.
Patent GB-2055125-A (GB)
Title: Yarn heaters
IPC: D02J13/00
Filed: 1980-07-14
Abstract: A yarn heater has a hollow, generally welded vessel 8 filled with heat transfer fluid partly in the liquid phase and partly in the vapour phase. Yarns 24 pass over tracks 4 formed on the outside of the vessel. The heat transfer fluid is heated by heating elements 18, 16, 14 having a self-limiting characteristic effective to restrain excessive temperature increases above the normal yarn heater operating temperature. The element may comprise a resistance wire 18 of pure nickel or a nickel/ platinum alloy embedded in a refractory material 16 in a metal sheath 14. At the same time insulation 28 and reflective surfaces around the vessel reduce heat leakage from the vessel to the surrounding atmosphere. <IMAGE>
Patent GB-2058642-A (GB)
Title: Scissors with an adjustable pivot structure
IPC: B26B13/28
Filed: 1980-07-24
Abstract: A pair of scissors includes a pair of scissor members 1, 2 pivotably interconnected by a screw 12 extending through pivot holes 5, 6 in the scissor members, respectively, there being an adjusting retainer nut 17 threaded over an end of the screw which projects beyond one of the scissor members, the adjusting retainer nut including a tapered or frustoconical surface held in frictional engagement with a complementary tapered or frustoconical surface defining a portion of one of the pivot holes 5 and by tightening or loosening the adjusting retainer nut 17 on the screw 12, the blades of the scissor members 1, 2 produce a continuously variable shearing force to act on a material to be cut. <IMAGE>
Patent GB-2063853-A (GB)
Title: Light-transmitting vitreous sheet with heat-conducting strip deposited on its margin
IPC: E06B3/54
Filed: 1980-11-25
Abstract: Panels comprising vitreous sheets mounted in rebates in frames may occasionally be subjected to strong heat and there is a consequent risk that the sheet will fall from the frame because it breaks at its margin due to the high thermal gradient set up in the sheet where it is shielded by the frame. In order to ameliorate this, an opaque heat absorbing and heat conducting strip 4 is deposited on the margin of at least one face of the sheet 1 between the sheet and a facing part of the frame 2, so that when that sheet face is heated to a predetermined extent, the thermal gradient across the sheet margin is reduced. Uses: Fire-resistant panels in walls and doors; viewing windows in oven or furnace walls and doors. <IMAGE>
Patent GB-2067199-A (GB)
Title: Foamed pads
IPC: A43B7/22
Filed: 1980-12-16
Abstract: A pad, suitable for use in an article of footwear, comprises a foam material 1 whose pores are essentially spherical and the cross-sections of which decrease evenly towards the edges of the pad. The pad may include a flexible covering layer 2 and a layer 3 of a reactive adhesive which may be protected by a film 4. <IMAGE>
Patent GB-2089876-A (GB)
Title: Twistlock
IPC: B60P7/13
Filed: 1980-12-23
Abstract: A twistlock includes a bolt 1 which in the released position is semi- retracted into body 30, that is with its underside flush with the top plate 31 of the body of the twistlock. The bolt 1 is slideably supported in body 30 which is mounted slightly below the level of the support faces between the vehicle and the freight container so that the container clears the retracted twistlock. A handle 5 is connected to cam means 4, 34, 35 which lifts the bolt 1 from its lowered to its raised position on rotation of the handle 5 about a horizontal axis and which is connected to the bolt 1 so that in the raised position of the bolt the handle 5 can rotate the bolt. Spring 2 urges the bolt downwardly to hold the container firmly and also causes cam lever 4 to engage stop 12, with the effect that the bolt must be lifted slightly so that lever 4 clears stop 12 before bolt can be released. <IMAGE>
Patent GB-2076260-A (GB)
Title: Improvements in or relating to data transmission systems
IPC: H04M11/08
Filed: 1981-01-15
Abstract: A monitoring apparatus for monitoring the access ports of a viewdata computer comprises a microprocessor 30 and associated RAM 31. Information indicative of the condition of the access ports is fed into the RAM 31 under the control of the microprocessor 30 via input/output latches 35 which are linked to the ports. An interface circuit 37 periodically assembles a message relating to the condition of a port as indicated by the information stored in the RAM 31 for transmission to a monitoring centre where the information can be displayed on a conventional viewdata terminal. <IMAGE>
Patent GB-2071881-A (GB)
Title: Electronic watch function selecting and setting arrangement
IPC: G04G5/04
Filed: 1981-01-29
Abstract: The watch comprises a plurality of stores 24 to 29 (Fig. 3), each containing a particular item of time data and each producing an output signal representing the data therein. A single operating crown and stem Fig. 1 is displaceable by the user of the watch, on the one hand in the axial direction between a pushed-in position and a pulled-out position for which a switch 34 is respectively open and closed, and on the other hand rotatably. Rotation of the button closes and opens switches 8 and 9 by two cams rotationally displaced so that two pulse trains are produced with a phase relationship indicating the sense of rotation. A circuit 100 processes these pulse trains to produce UP pulse U for one sense of rotation and DOWN pulses V for the other sense of rotation. These pulses are used to correct the value in a selected store. The stores 24-29 contain hours, minutes, day, date and alarm data. The particular store to which the correction signal is applied is selected by axially displacing the operating button from the pushed-in position to the pulled-out position a predetermined number of times. A store selection circuit 30 includes a counter which counts the pulls and selects the store in accordance with its count. <IMAGE>
Patent GB-2092723-A (GB)
Title: Improvements relating to blowdown tanks
IPC: F22D1/18
Filed: 1981-02-07
Abstract: A cylindrical tank (1) is arranged with its axis horizontal and internally, from one or both ends (2, 3) there extends a heat exchanger (10, 26). If there are two, they may overlap. Each exchanger has an outer tube (11, 27) with an inner bundle of tubes (12, 28) and can be entered longitudinally through its associated end, outside which there is a header (9, 30) for connection to water pipes. The blowdown water enters the tank via one such header and heat exchanger and may leave it via another, either passing through the tubes of the inner bundle or around them, with the water to be heated (such as boiler feed water) being ducted through the other parts of the exchanger. <IMAGE>
Patent GB-2072854-A (GB)
Title: Meter Prover Calibration
IPC: G01F25/00
Filed: 1981-03-18
Abstract: Method and apparatus for calibrating a prover used for testing fluid flow meters. The prover includes a variable volume chamber of regular geometry defined by a movable element, e.g. a piston in a cylinder, which chamber is connected to the meter under test. A measuring device is coupled to said element to provide a high resolution signal, typically in the form of a train of pulses. Electromagnetic waves are generated in the chamber, varying their frequency to establish in resonant wave standing condition in the chamber; the mode of generation being selected so that at said resonant condition, the electric and magnetic components of the field generated are related to the dimensions of the chamber. By determining the capacity of the chamber at first and second positions of the piston or other movable element a displacement volume is determined with great accuracy and this is compared with the high resolution signal to determine the incremental volume of fluid displaced by incremental measured movement of said element, e.g. relative to a single pulse of the train.
Patent GB-2074256-A (GB)
Title: Bearing assemblies for weighing apparatus
IPC: G01G17/08
Filed: 1981-04-21
Abstract: An apparatus for weighing animals comprises a wheeled framework (10, 12, 14, 16) from which a cage (28) can be suspended. At each end the cage (28) has an upstanding flange (40) releasably mounted on a cross arm (56) which in turn is releasably mounted on a cross member of the framework by beans of a flange (66). The arm (56) is connected with each of the flanges (40, 66) by means of a bearing assembly having replaceable hardwearing parts (46, 58). The arms (56) are interconnected by longitudinal arms (54), one of which mounts a pin (68) with which a weighing device (74) can be connected whereby the weight of the animal in the cage (28) can be determined. <IMAGE>
Patent GB-2077070-A (GB)
Title: A signal processing system
IPC: G11C27/04
Filed: 1981-05-08
Abstract: A signal processing system comprises an analogue shift register of the charge coupled type (24) fed from a sampling device (22) and controlled by a clock arrangement (26) having three independent clocks (26A, 26B and 26C). Clock (26A) determines the sampling rate of sampling device (22) and the rate which such samples are clocked into register (24). Clock 26C determines the rate at which stored samples are clocked out of the register (24). Clocks 26A and 26C operate in the MHz range. Clock 26B operates in the KHz range and dictates the sample storage interval and clocks the stored samples through a number of storage sites in register (24) during the storage interval to reduce the adverse effects of geometrical and other inhomogeneities of the individual register sites on the individual stored samples. <IMAGE>
Patent GB-2098333-A (GB)
Title: Liquid level detector
IPC: G01F23/26
Filed: 1981-05-08
Abstract: A liquid level detector for sodium has a probe (12) formed with three coils (15, 16, 17). The coil (15) is an input coil and is closely coupled with the coil (16). The closely coupled coils are included in a screen (19) which aids the close coupling. The coil (15) is loosely coupled with the coil (17) whilst being close to each other. The screen (19) ensures that the coupling is by virtue only of leakage fluxes and hence is loose. The coils (16, 17) act as output coils and their outputs are compared. The compared output can be used to make the probe null seeking to provide a continuous indication of sodium level or the probe may be fixed and an indicator provided to indicate whether the probe is positioned above or below sodium level. <IMAGE>
Patent GB-2082320-A (GB)
Title: Monitoring the strength of a coloured solution
IPC: G01N21/31
Filed: 1981-08-05
Abstract: A method of monitoring the strength of a coloured solution of a chemical comprises transmitting pulses of electromagnetic radiation of two wavelengths, one of which is in the visible region, into the solution monitoring the pulses after transmission through the solution, and comparing their absorption at these wavelengths to establish the degree of colour saturation and hence solution strength. The wavelengths are chosen in dependence upon the chemical solution monitored so that the difference of absorption varies with colour saturation. An optical probe for this method comprises a transmitter unit including a convex lens (6) and light sources (4, 5) having different emission characteristics in a liquid-tight housing, a receiver unit including an optical sensing element (8) in a liquid- tight housing, and means (3) connecting these units so that they face one another whereby electromagnetic radiation from the transmitter unit is received by the receiver unit and a chemical solution is enabled to circulate freely in the space between the exit (7) and entrance (12) windows. <IMAGE>
Patent GB-2084885-A (GB)
Title: Process for the concentration of aqueous glycol solutions
IPC: B01D1/06
Filed: 1981-08-12
Abstract: The process relates to the concentration of an aqueous glycol solution by evaporation of the solution, in the form of a thin film, in a set of multiple-effect vertical film evaporators (8) arranged one above another in a column. <IMAGE>