baber/WOPTO huggingface dataset:
Patent GB-2054342-A (GB)
Title: Apparatus for treating filter material
IPC: D06B1/08
Filed: 1980-07-15
Abstract: Apparatus for treating filter material, particularly a filter tow for forming into a cigarette filter rod, includes an applicator chamber (2) containing a rotatable brush (10) for spraying a fluid additive such as a plasticiser towards the tow (1). A pressure manifold (14) having a permeable surface (15) adjacent the path of the tow (1) produces an airflow which redirects towards the tow plasticiser not captured initially by the tow. Air supplied to the manifold (14) passes through an air ionisation region (23), to reduce static electricity in the chamber (2). Air is withdrawn from the chamber (2) by a pump (16) to prevent a pressure build-up which could cause loss of uncaptured plasticiser. A separator (19) is provided for collecting any plasticiser entrained with the extracted air and for returning it to a supply tank (4). <IMAGE>
Patent GB-2061618-A (GB)
Title: A through type high-withstand- voltage ceramic capacitor
IPC: H01G4/38
Filed: 1980-07-29
Abstract: A through type twin ceramic capacitor for use in the noise filter in a high power device comprises (a) a capacitor half assembly having an elliptic column shaped ceramic body (1), a pair of first electrodes (4, 5) attached on the upper surface of said ceramic body, and a common electrode (6) disposed on the bottom surface of the ceramic body, the ceramic body together with the attached electrodes having a pair of holes (2, 3) in order to insert conductor rods, (15, 16) said capacitor half assembly being placed on a ground conductor 7; (b) a pair of on conductive caps (13, 14) disposed on each of said first electrodes to connect electrically the first electrode to said conductor rod; (d) a hollow elliptic column shaped plastics cover (8) positioned below said ground conductor enclosing said conductor rods, and said cover having a bridge (8c) which separates the cross section of the cover to two substantially circular areas, and (e) an insulator (17) injected into said cover and enclosing said capacitor half assembly. Due to the presence of said bridge the injected insulator is separated to two portions. Thus, the linear expansion and/or contraction of said injected insulator is reduced at the central portion (the portion of the conductor rod) of each individual capacitor. <IMAGE>
Patent GB-2082000-A (GB)
Title: Enhanced Q 3rd overtone crystal oscillator
IPC: H03B5/36
Filed: 1980-08-08
Abstract: An overtone crystal oscillator suitable for use in communications equipment. In order to reduce the loss of Q in the resonant circuit due to external losses, the oscillator comprises an amplifying element (12) and a resonant circuit including an overtone mode crystal (15). The current in the resonant circuit is divided into two paths, the current (I1) in one of the two paths being subject to external losses whilst the current (I2) in the other of the two paths is substantially unaffected by the external losses, the overall Q of the resonant circuit being thereby increased. An oscillator having an enhanced Q enables a number of practical effects to be achieved simply, these effects include cold-end compensation, temperature compensation of the overall oscillator and pulling control to +/-30 ppm on either side of the series resonant frequency. A positive or negative coefficient capacitor Ct or a thermistor RX, Fig. 5 provide the temperature compensation. <IMAGE>
Patent GB-2060783-A (GB)
Title: Speed transient control for an auxiliary power unit
IPC: F04D27/00
Filed: 1980-09-26
Abstract: A gas turbine auxiliary power unit for an aircraft drives an electrical generator 14 and an air compressor. When the generator 14 is used in conjunction with the aircraft generating system, inlet air to the compressor is controlled by variable guide vanes to vary the compressor load on the power unit and thus minimize power unit speed changes and electrical frequency transients. The system is controlled by a microprocessor 30. <IMAGE>
Patent GB-2064981-A (GB)
Title: A vacuum cleaner dust bag
IPC: A47L9/14
Filed: 1980-10-14
Abstract: A vacuum cleaner dust bag (10) comprises two portions of air-pervious filtering sheet material (11) joined to form two closed ends (12, 13) and having an inlet opening (14) in one portion for insertion of an inlet tube for entry of dust-laden air into the bag. An elastic plate (16) is attached to one portion of the sheet material (11) in the plane thereof and over the inlet opening (14). The plate (16) has a slot or slit (17) which is distended when the inlet tube is inserted therethrough into the bag, so that the plate seals around the tube. The need to provide the usual cardboard mounting plate is thus avoided. <IMAGE>
Patent GB-2091414-A (GB)
Title: Solid fuel combustion appliances
Filed: 1980-12-05
Abstract: A solid fuel combustion appliance includes a primary combustion zone (6) for burning solid fuel in a firebed (50) from which exhaust gases issue into a secondary combustion zone (30). The zone (30) has a chamber (38) of greater cross-sectional area than the inlet (39) or the outlet (40) thereof. <IMAGE>
Patent GB-2067764-A (GB)
Title: Transcutaneous gas sensor
IPC: A61B5/00
Filed: 1981-01-05
Abstract: A transcutaneous gas sensor intended for use in measuring the gas permeability of human skin consists of a series of flat flexible components, the components being a first non- porous polymeric film (10) which has a gas-permeable area (21), a working electrode (16), a first porous insulating layer (18), a reference electrode (20), a second porous insulating layer (22), a counter electrode (24) and a second non- porous polymeric film (26), the first and second films (10) (26) being sealed along their edges to retain the other components and an electrolyte. In a modification (Fig. 4) the aperture in the first film (10) is attached to the membrane layer of a metallised membrane electrode constituting the working electrode. <IMAGE>
Patent GB-2069812-A (GB)
Title: Treating rice
IPC: A23L7/196
Filed: 1981-01-27
Abstract: Foodstuff products manufactured by a process wherein rice is partly softened to prevent it from shattering under pressure, pressure is applied to the partly softened rice to produce cracks or fissures therein, an additive is thereafter applied to the rice, the rice is impregnated with the additive through the cracks or fissures and the resultant rice product is heated sufficiently rapidly that puffing occurs. The rapid heating or puffing stem may be conducted so as to effect substantially complete gelatinisation of the rice product. Preferred forms of rapid heating or puffing include the use of microwave radiation, deep fat frying, salt bed drying and forced convection ovens. A highly desirable form of rapid heating is in the form of infrared radiation, more preferably, near-infrared radiation. Products made by the inventive process are suitable as a rapidly-rehydratable rice component in "instant" snack items and other easily-prepared food products, particularly by the addition of an appropriate amount of just-boiled water and subsequent stirring, and as an ingredient of confectionery bars.
Patent GB-2074954-A (GB)
Title: A Pneumatic Tire
IPC: B60C9/08
Filed: 1981-02-27
Abstract: A pneumatic tire (10) has first and second carcass reinforcing structures (23), (24), the first structure (23) passing from the tire crown region first to the axially inner surface of bead cores (20), (21), and then on around the cores and the second structure (24) passing from the crown region first to the axially outer surface of the bead cores and then on around the cores, in the as-cured state of the tire the neutral contour of bead and side wall regions of each structure (23), (24) coinciding with a natural equilibrium curve of the respective structure. Each structure (23), (24) may consist of one or more plies whose cords may be at 75 DEG -90 DEG  to the circumferential, and the tire may have a crown reinforcement with cords at 15 DEG -30 DEG  to the circumferential. The beads may have reinforcements (31), (34) which are made of rubber with a dynamic modulus of at least 125 kg/cm<2> and whose radially outer extremities are at a distance A from the type bead heals of at least 25% of the tyre section height CSH. <IMAGE>
Patent GB-2083065-A (GB)
Title: Conversion of Crude Flavanthrone to a Transparent Pigmentary State
IPC: C09B67/28
Filed: 1978-10-30
Abstract: Crude flavanthrone is converted into a transparent, easily dispersible pigmentary form giving greenish colorations by converting it into the leuco compound and oxidizing the leuco compound in aqueous suspension by means of an oxidizing agent such as molecular oxygen or hydrogen peroxide whilst exposing it to shearing forces, e.g. by milling in the presence of a grinding medium. A pigmentary form of flavanthrone is precipitated directly or upon acidification and is recovered. The oxidation can be carried out in the presence of a surfactant.
Patent GB-2096873-A (GB)
Title: Bird and animal scares
IPC: A01M29/08
Filed: 1981-04-16
Abstract: A method and apparatus for protecting plants and crops from attack by birds and other animals such as mice comprising providing flexible strip material mounted on suitable support members in the region of the growing plants or crops. The strip material is light in weight and mounted so as to be freely movable in the prevailing wind. The strip material may be in the form of a tape provided with a bright or shiny appearance. The tape may be treated with a highly reflective or luminous composition on one or both sides of the tape. Opposite sides of the tape may be of different colours. For example, the tape may have a highly reflective orange- coloured appearance similar to that of so-called hazard or warning tape used on vehicles. The bright appearance of the tape and its constant movement in the lightest wind has a deterrent effect on birds and other crop and seed eating animals.
Patent GB-2082592-A (GB)
Title: Fire protection components containing brominated diphenyl ethers
IPC: B32B7/00
Filed: 1981-06-24
Abstract: A fire protection component for cresol- and phenol-based resin-bound pressed laminates, which comprises about 50. % of a mixture of bromine- containing diphenyl ether which contains:  55 - 70 wt. % hexabromodiphenylether,  12 -18 wt. % heptabromodiphenylether,  8 - 18 wt.% octabromodiphenylether and 8 -16 wt. % lower bromination derivatives of diphenylether, about 16 wt. % tetrabromo-2,2-bis (4-hydroxyphenyl)- propane, about 34 wt. % alkylarylphosphate.
Patent GB-2084692-A (GB)
Title: Rolling diaphragm gas springs combined with shock absorbers
IPC: B60G17/015
Filed: 1981-08-26
Abstract: A pneumatic spring for vehicle suspensions facilitates removal of a flexible member 26 defining a pneumatic chamber when it is to be replaced or mended. The pneumatic spring is combined with a shock absorber which has a cylinder 10 to which one end of the flexible member is detachably fitted. The shock absorber has a piston connected to a piston rod 16 releasably engaged with an outer shell 14, 20 of the pneumatic spring. The means for permitting the piston rod and outer shell to releasably engage is a threaded bore and a threaded section provided on the piston rod. The connection is sealed. <IMAGE>
Patent GB-2084320-A (GB)
Title: Assay of vitamin B12
IPC: G01N33/82
Filed: 1981-09-11
Abstract: In a method of assaying for vitamin B12 which comprises denaturing serum binding proteins with alkali there is used in the denaturation step a dithiopolyol and cyanide, and in the intrinsic factor assay step a vitamin B12 analogue such as cobinamide to bind with any remaining serum proteins. The invention also includes a kit in which the dithiopolyol is provided in admixture with the alkali. The dithiopolyol may be dithiothreitol or dithioerythritol.
Patent GB-2112972-A (GB)
Title: Logic circuits
Inventor: SMALL HUGH
IPC: G06F11/34
Filed: 1981-12-17
Abstract: A logic circuit for extracting sample values of a particular type of data word transmitted over parallel signals lines is disclosed. The circuit comprises an oscillator 4 and a first synchronisation circuit 2,3,5 which enables all values of a particular type of data word transmitted on the signal lines to be recorded in a parallel register (6), together with a second synchronisation circuit 8,9,10 which, on receipt of an input signal 7, extracts recorded values from the parallel register (6) and stores them in a second parallel register (15) from which they may be transmitted to circuits for measurement or indication. The second synchronisation circuit is coupled to the first by a gate 12 to ensure that demands for samples occurring while the parallel register (6) is in a state of transition will be queued for action until the recorded value stabilises. <IMAGE>
Patent GB-2097242-A (GB)
Title: A curtain supporting and sliding device
IPC: A47H5/032
Filed: 1982-03-04
Abstract: Two sliding blocks intended to glide in opposite directions along a track 7 carried by a rod 8 each comprise a body 1 having two seats 2 at opposite ends thereof for receiving two rings 5 as a force fit therein. In addition a respective pin 3 positioned centrally of each seat 2 engages within a corresponding hole in the ring 5 received within that seat 2 so as to prevent any relative rotation between the ring 5 and the body 1. Two pairs of wheels or rollers 9 are attached to each body 1 for engaging the track 7; and two suspension elements 11 for supporting the two curtains, each carried by the pair of rings 5 associated with a respective one of the bodies 1. Such a device serves to reliably support the curtains whilst providing very low frictional resistance to drawing of the curtains. Cord arrangements for drawing the curtains are also described. <IMAGE>
Patent GB-2108945-A (GB)
Title: Aluminum oxynitride having improved optical characteristics and method of manufacture
Inventor: HARTNETT THOMAS M
IPC: C09J161/06
Filed: 1982-08-31
Abstract: A method of preparing substantially homogeneous aluminum oxynitride powder is provided comprising the steps (a) reacting aluminum oxide with carbon black in the presence of nitrogen, (b) heating to produce a reacted powder and (c) breaking down the resulting powder into particles in a predetermined size range. A method of preparing a durable optically transparent body from this powder is provided in which the presence of predetermined additives enhance the sintering process. Preferred dopant additives are boron, in elemental or compound form, and at least one additional element selected from the group of yttrium and lanthanum or compounds thereof.
Patent GB-2107477-A (GB)
Title: Signal reconditioning arrangements
Inventor: HAUPENTHAL KARL-FRIEDRICH
IPC: F23M11/04
Filed: 1982-09-10
Abstract: A signal reconditioning arrangement (2) is operative to provide fail safe processing of a low d.c. voltage emitted by a sensor (1) - e.g. a photoelectric sensor - in the flame monitoring of oil or gas burners. In order to avoid drift problems, the d.c. voltage is not directly amplified. Instead, it is chopped by means of a controllable switch (11) and stepped up by an inductor (10). The energy stored by the sensor (1) in a capacitor (C1) is thus suppled to the inductor (10) in pulsed form. The switch (11) is controlled by a series of switching pulses from a pulse generator (12). The output of a Pi network (8), formed by the capacitor (C1), the inductor (10) and the switch (11), controls a semiconductor switch (13), which is operated in synchronism with the output pulses of the pulse generator (12). The pulse generator (12) comprises two astable multivibrators (15 and 17) and two monostable multivibrators (16 and 18), each of which comprises a two-input Schmitt trigger NAND-gate (19, 20, 21, 22) and an RC series combination or a CR network. <IMAGE>
Patent GB-2111977-A (GB)
Title: Epoxy compounds containing N-diglycidyl groups
Inventor: JOHNCOCK PETER
IPC: C07D303/36
Filed: 1982-09-30
Abstract: Novel epoxy compounds have the general formula:   <IMAGE>  in which Y is selected from A and   <IMAGE> each A being independently selected from halogen, halogen containing group and H, provided that at least one of the groups A per aromatic ring is a halogen or halogen containing group. In any one compound, when A is a halogen or halogen containing group, it is preferred that each A is the same. When the epoxy compound contains only one aromatic ring the group A may be a polyfluoroalkyl group in which case one or two such groups may be attached to the aromatic ring; or a polyfluoroalkoxy group, in which case only one such group is attached to the aromatic ring. When the epoxy compound contains two aromatic rings, the group A may be Cl, Br, or a polyfluoroalkyl group and one or two such groups may be attached to each aromatic ring. The epoxy compounds may be cured to form high molecular weight polymers with improved resistance to moisture.
Patent GB-2111592-A (GB)
Title: Chair with hydraulic elevator and pump
Inventor: ZAPPA GIANPIETRO
IPC: A47C/
Filed: 1982-11-11
Abstract: The chair has a seat supporting cylinder (2), a hydraulic elevator (1) and a stop device when the base (4) of the chair is provided with wheels or rollers. The hydraulic elevator includes a vertical axis hydraulic cylinder (10) provided with piston (8) connected to the seat support (3) and a foot-lever operated pump (12) connected to said hydraulic cylinder (10) and communicating with a tank (13), containing the hydraulic fluid, through a valve and a conduit, in which said hydraulic cylinder (10), pump (12) and tank (13) with the associated valves are arranged along the vertical axis (A) of a container cylinder (7) slidably inserted in the seat supporting cylinder (2). <IMAGE>
Patent GB-2138281-A (GB)
Title: Combined key-ring and coin holder
Inventor: HUANG SHIU-RIN
IPC: A45C1/02
Filed: 1983-04-22
Abstract: A key-ring is combined with an elastic container for storing coins which comprises a normally closed elastic housing body (11) preferably made of a spring (12) closely coiled in the shape of a solenoid with at least a tapered portion at one end so as to define a space therein for storing coins. An ornamental article (2) is movably attached at one end of the elastic housing body (1); and a key-holding member (3) is provided at the other end. By applying a biased pressure with one's fingers against the elastic housing body (11), an opening (111) leading to the space will appear in the coiled spring (12) so that coins can be either put in or taken out. <IMAGE>
Patent GB-2120872-A (GB)
Title: Capacitive voltage dropper
Inventor: AHLGREN FREDERIC FRANCIS
IPC: H02M5/08
Filed: 1983-05-10
Abstract: A capacitatively ballasted load, particularly a low voltage lamp 11, has a main capacitor C1 connected in series with the lamp across an alternating current source, and one or more auxiliary capacitors 62 that can be connected electrically across the main capacitor by switching means 17 for one or more complete cycles of the source waveform. The minimum lamp current is established by the main capacitor, with additional lamp current flowing through one or more auxiliary capacitors during one or more complete cycles. Switches 17 may be triacs and are turned on only when the voltages V1, V2 across the main and auxiliary capacitors are approximately equal and/or at approximately the maximum voltage of the a.c. source waveform. A control circuit 18 may switch the auxiliary capacitors into and out of circuit in response to the current through the lamp. <IMAGE>
Patent GB-2121406-A (GB)
Title: Liquid crystal cyanophenylethanes
Inventor: CARR NEIL
IPC: C07C29/147
Filed: 1983-05-11
Abstract: Liquid crystal ethane compounds having a positive dielectric anisotropy are represented by the general formula (I) as follows:   <IMAGE> wherein A is a substituted ring structure which includes a terminal alkyl group, A being selected from:   <IMAGE> where R is an alkyl group, and the cyclohexane ring is trans-,   <IMAGE> where R is an alkyl group, and   <IMAGE> where R1- is an alkyl group R-, an group RO- an alkylcarbonyloxy group RCO, O- or an alkoxycarbonyloxy group; and wherein X is either hydrogen or fluorine, provided that if X is hydrogen A is   <IMAGE> These compounds may be prepared by routes involving known procedures, eg Friedel-Crafts acylation followed by reduction.
Patent GB-2123031-A (GB)
Title: High-nickel austenitic alloys for sour well service
Inventor: FUJIWARA KAZUO
IPC: C22C30/00
Filed: 1983-05-17
Abstract: The alloys consist of 0.05 wt% or less of C, 0.04 wt% or less of N, 1.0 wt% or less of Si, 1.0 wt% or less of Mn, 35 to 45 wt% of Ni, 20 to 30 wt% or Cr, 4 to 7 wt% of Mo, and the balance of Fe and inevitable impurities provided that Cr + 3 Mo is at least 40 wt%. Optionally the alloys may also contain 1 to 3 wt% of Cu, up to 0.5 wt% of Al, and/or one or more of 0.6 to 1.5 wt% of Ti, 0.6 to 1.5 wt% of Nb, and 0.6 to 1.5 wt% of V.
Patent GB-2134344-A (GB)
Title: Process for estimating the translations undergone by objects represented in a sequence of images and a device implementing this process
Inventor: RICHARD CHRISTIAN
IPC: G06T7/20
Filed: 1983-05-20
Abstract: The process consists of:   - comparing digitised brightness values of a point in two successive images in order to detect whether movement has occurred; - grouping together in zones the points in movement which are related; - determining, from amongst the points of each zone, those which belong to the contours of an object, on the one hand in the current image 8, and on the other hand in the preceding image 7, these points being characteristic of a second and of a first position of an object in movement; - determining the coordinates of the barycentre Ip of the characteristic points of the first (preceding) position; - determining the coordinates of the barycentre Ic of the characteristic points of the second (current) position;   - determining the components of the vector   <IMAGE> which constitutes estimate of the translation undergone by the object in movement in the zone considered.   <IMAGE>
Patent GB-2121519-A (GB)
Title: Flap valve for a wet settling tank
Inventor: HUBNER FRIEDHELM
IPC: B03B5/20
Filed: 1983-06-07
Abstract: A flap valve for the working air of a settling tank used in the preparation of coal or other minerals has an electric drive. The drive may be e.g. a disc 1 with a linear motor arrangement 5, 6 at its periphery or any other electric drive e.g. a solenoid <IMAGE>
Patent GB-2139215-A (GB)
Title: Production of thiophene acetic acid compounds
Inventor: PROST-MARECHAL JACQUES
IPC: C07D333/24
Filed: 1983-09-01
Abstract: The  alpha -hydroxy-2-thiophene acetic acid of formula (I):   <IMAGE> in which R represents an alkyl radical of 1-4 carbon atoms and R1, R2 and R3 are the same or different and each represents a hydrogen atom or an alkyl radical of 1-4 carbon atoms, is prepared by reacting a magnesium halide of formula (II):   <IMAGE> in which X represents a halogen atom, with a ketone of formula (III):   <IMAGE> in which R is as defined above and A represents a hydrogen atom, an alkali metal atom or an equivalent of magnesium or of an alkaline earth metal, to produce a product which is then reacted to hydrolyse its magnesium group and produce the desired  alpha -hydroxy-2-thiophene acetic acid. The  alpha - hydroxy-2-thiophene acetic acid is useful as an intermediate for producing pharmaceuticals, such as anti-inflammatory products.
Patent GB-2146566-A (GB)
Title: Electrostatic bonding
Inventor: GREENWOOD J C
IPC: C04B37/00
Filed: 1983-09-16
Abstract: A silicon body, e.g. a transducer 11 is provided with a surface coating 12 of a glass. The glass is ground and polished to a thickness of 5 to 100 microns and the assembly is then electrostatically bonded to a silicon substrate 13. <IMAGE>