baber/WOPTO huggingface dataset:
Patent GB-2021606-A (GB)
Title: Hydroxyl-terminated poly(chloroalkylene ethers)
IPC: C08G18/50
Filed: 1979-05-16
Abstract: Colorless hydroxyl-terminated poly(chloroalkylene ethers) of the formula   <IMAGE>  wherein R<1> and R<2> = hydrogen or methyl; R<3> and R<4> = hydrogen, lower alkyl containing 1 to 10 carbon atoms or lower chloroalkyl containing 1 to 2 carbon atoms provided that at least one of R<3> or R<4> is lower chloroalkyl; R<5> = residue of a hydroxyl material which originally contained 1 to 6 hydroxyls;  b = integer of 1 to 50;  d = integer of 1 to 6. The ethers may be prepared by reaction of a hydroxyl material containing 1 to 6 hydroxyl groups with a chloro-alkylene oxide in the presence of a novel catalyst system comprising   (i) a fluorinated acid selected from the group consisting of bis (fluorinated aliphatic sulfonyl) alkanes and acids of the formula HmXFn+m wherein X is selected from the group consisting of boron, phosphorous, arsenic and antimony; m is 0 or 1, n is 3 when X is boron and n is 5 when X is phosphorous, arsenic and antimony; and   <IMAGE>
Patent GB-2051300-A (GB)
Title: Plastics springs
IPC: B60G11/00
Filed: 1979-05-17
Abstract: The invention lies in making a simple open mouthed circular shaped plastic spring that is designed to allow one part of it to be attached to the axle of a wheel chair, bicycle or any light vehicle and the other part being an integral part of or attached to the vehicle giving impact resistance between wheel and the vehicle. Increased lateral stability is given to the spring by placing discs (not shown) on either side of the spring centred on the axle, and this can increase the strength to movement of the spring. <IMAGE>
Patent GB-2029173-A (GB)
Title: Frequnency-modulation stereophonic receiver
IPC: H04B1/16
Filed: 1979-07-24
Abstract: An FM stereophonic receiver comprises a control circuit (6) including two sets of symmetrically arranged transistor pairs (31, 32, 33, and 34, 35, 36) which are connected to respective constant current sources (Q9, Q10). The control circuit (6) receives an output signal (at 12) from an FM detector and controls the coupling of the FM detector output to different input terminals (14, 15) of a switching circuit (7) in response to a DC control signal (at 13) indicative of the level of a received broadcast signal, so as to feed both terminals at low signal levels but only one terminal (15) at high signal levels. The switching circuit (7) receives a train of switching pulses of 38 kHz as a switching control signal to derive a stereophonic audio signal at high signal levels and a monophonic audio signal at low signal levels, from the signals applied at its terminals (14, 15). The DC supply regulating circuit (30) serves to maintain the DC level applied to the input terminals of the switching circuit (7) at a constant value at all times to reduce noise which might occur in the reproduced audio signal when the receiver switches over between the stereophonic and monophonic modes. <IMAGE>
Patent GB-2031429-A (GB)
Title: Chlorides of N-dichlorothio- phosphoryl-imidic acids and a method of obtaining thereof
IPC: C07F9/572
Filed: 1979-07-31
Abstract: The novel compounds have the formula   <IMAGE>  wherein R represents CCl3, CH3CCl2, CH2ClCCl2. The compounds are prepared by reacting compounds of formula   <IMAGE> where x represents O (oxygen), RCCl2N;  y represents RCClN, Cl;  R represents CCl3, CH3CCl2, CH2ClCCl2;  y being RCClN, when x is O (oxygen), and y being Cl when x is RCCl2N with phosphorus pentasulfide at a temperature of 130 to 170 DEG C with subsequent isolation of the end product. Chlorides obtained by the method of the invention may be useful in production of physiologically active antitumour compounds.
Patent GB-2030507-A (GB)
Title: Casting articles
IPC: B28B5/02
Filed: 1979-08-02
Abstract: An element made of hardenable binding agent, such as plaster, with water is obtained by successive elementary deposits of the dry binding agent in powder form, each elementary deposit being followed by a wetting and, after the last wetting, before setting begins, whilst the wet binding agent is still malleable, the element being formed is subjected to a prelamination, then to a compaction. The invention is more particularly applicable to the manufacture of construction elements.
Patent GB-2062611-A (GB)
Title: Single mode optical fibre
IPC: C03C13/00
Filed: 1979-10-29
Abstract: Single mode optical fibre for operation in the wavelength range 1.5 to 1.7 microns is made by depositing a cladding glass layer (51) and then a core glass layer (52) upon the bore of a silica substrate tube (50). The bore of the coated tube is then collapsed to form a solid cross-section optical fibre preform. The cladding glass has an index matching that of silica and either contains no oxide of phosphorus or the minimal amount to proved a low enough deposition temperature and high enough deposition rate to provide an acceptably low diffusion of hydroxyl groups from the material of the substrate tube. Optionally the deposition of the cladding may be preceded by the deposition of a diffusion barrier layer which may contain a higher proportion of oxide of phosphorus.
Patent GB-2067333-A (GB)
Title: Bells
IPC: G10K1/07
Filed: 1980-01-09
Abstract: An improved bell, of the kind comprising a bell-shaped part (11) and a clapper (12), comprises co-operative head element (23) and socket element (13), one on the bell part (11) and the other on the clapper (12), by means of which the clapper (12) is suspended relative to the bell part (11). The socket element (13) may have an assembly opening having a through bore (14) by means of which the head element (23) of the clapper (12) may be introduced into the socket element (13), the opening being subsequently closed by a closure member which may comprise in the case of a hand bell the handle (10). <IMAGE>
Patent GB-2040957-A (GB)
Title: Magnetic recording medium
IPC: C09D5/23
Filed: 1980-01-15
Abstract: A magnetic recording medium such as a tape or disc comprises a substrate coated with a magnetic paint having high adhesive strength, repeated running durability, good electromagnetic characteristics and a high quality gloss and containing a magnetic powder and a binder which comprises 30 to 70 wt.% of a urethane resin, 10 to 50 wt.% of an epoxy resin, 10 to 50 wt.% of nitrocellulose and optionally a curing agent.
Patent GB-2045986-A (GB)
Title: Electrical Circuit Means Providing a Time Delay
IPC: F02N19/02
Filed: 1980-02-05
Abstract: An electrical circuit provides a time decay which is dependent upon ambient temperature. The switching state of a transistor network is determined by the resistance of a suitably connected PTC or NTC device. As current flows in the circuit the PTC or NTC device is heated by Joule heating and at an anomaly temperature will undergo an abrupt resistance change. The resistance change is used to alter the switching state of the transistor network. The Joule heating effect of an output transistor in the network can be utilized by mounting the PTC or NTC device in thermal contact with the transistor housing or, with PTC devices, the self heating effect of the device itself can be employed. The circuits are particularly useful for controlling the choke and other similar devices in an internal combustion engine.
Patent GB-2043689-A (GB)
Title: Treating juice with lactic bacteria
IPC: A23J1/00
Filed: 1980-02-15
Abstract: The invention relates to a process of treating juice having a high protein and sugar content, obtained by squeezing vegetable matter to be used as foodstuff. This process comprises the following steps:   - submitting said juice issuing from a squeezing press to a first inoculation with a first mesophile homofermentative lactive bacteria in a proportion of at least 10<4> bacteria per millilitre; - maintaining the thus inoculated juice at a temperature comprised between 28 and 35 DEG C, preferably 30 DEG C, during 15 to 20 hours, under slow agitation and without aeration, so as to obtain a suspension constituted by an insoluble fraction of vegetable and microbial proteins, and a residual liquid phase, said suspension having a pH comprised between 4.2 and 4.5; - separating said insoluble fraction from said liquid fraction; and   - separately treating the residual liquid and said insoluble fraction. n
Patent GB-2047840-A (GB)
Title: Leak proof door
IPC: F16H57/031
Filed: 1980-03-26
Abstract: An improved housing for gearing and the like, has at least one wall with an access opening formed by flanges 36, 38 of unequal widths which are spaced apart to form a liquid receiving groove. The access opening is provided with a closure door 42 that has a baffle plate 54 mounted on but spaced from the inner surface of the door in a position such that the plane containing the baffle plate is located intermediate the planes containing the inner surfaces of the flange defining the access opening. <IMAGE>
Patent GB-2046035-A (GB)
Title: Converter supplying arc welding current
IPC: H02M3/315
Filed: 1980-03-31
Abstract: In an arrangement for direct- current and/or alternating-current welding, comprising a converter (11) for generating an alternating converter output current with a frequency which is higher than the mains frequency, the converter (11) is provided with controllable switching elements (22, 23) and at least one commutating capacitor (20, 21) and its output is connected via a transformer (13) to a workpiece (15) and a welding electrode (16). In order to prevent the switching elements (22, 23) from being destroyed at frequencies of more than 20 Kilohertz and during welding operations, the primary winding (13a) of the transformer (13) is divided in accordance with the number of switching elements (22, 23) and one primary winding section (31 and 32) each is connected to one switching element (22 and 23) and one commutating capacitor (20 and 21). Full bridge converter arrangements are described with reference to Figs. 2 and 3 (not shown). <IMAGE>
Patent GB-2068120-A (GB)
Title: Gauging internal dimensions of pipes
IPC: E21B47/08
Filed: 1980-07-01
Abstract: A calipering tool for use in a pipe has a body part (B) and feeler means mounted with the body for engaging the surfaces of the pipe being calipered. The feeler means includes pivoted feeler arms moving in response to variations in the surface of the pipe. The body part (B) of the calipering tool is adapted to be pumped in response to fluid pressure acting upon seals R into and out of the pipe for movement of the calipering tool. Preferably the body consists of a number of sections articulated together to enable the tool to pass through a pipe which includes bends. <IMAGE>
Patent GB-2065851-A (GB)
Title: A smelting furnace for non- ferrous metals
IPC: F27D13/00
Filed: 1980-11-26
Abstract: A smelting furnace for non- ferrous metals incorporates a pre- heating chamber (11) communicating with a smelting chamber (2) through a passage (10). Metal to be smelted (for example, in the form of ingots) is loaded into a hopper (13). The metal, is fed to the smelting chamber (2) by vibratory motion imparted to a shelf (14) or by some other feed device, and is preheated by heat rising from the smelting chamber. <IMAGE>
Patent GB-2070655-A (GB)
Title: Apparatus for assembling a mining screen from plastics coated components
IPC: B29D28/00
Filed: 1980-12-29
Abstract: Assembly apparatus for a wear resistant plastic mining screen, preferably one made out of wires formed by extruding urethane around a rigid steel core, includes a feed roll having spaced grooves for receiving elongated profile wires which define the working surface of the screen. A support rod positioning member is mounted at a welding station to frictionally receive a screen support rod on its top side and then be flipped over to position the support rod above the profile wires which pass transversely under it. A welding bar having heated fin portions on its upper and lower sides is then passed between and in contact with the support rod and the profile wires to slightly melt them. The welding bar is then quickly removed and the support rod is quickly moved downwardly against the profile wires and held until the integral joints formed at each intersection are solidified. Additional support rods are welded to the profile wires at spaced intervals until the desired screen length has been reached.
Patent GB-2070129-A (GB)
Title: A Hinge
IPC: E05D3/18
Filed: 1981-01-07
Abstract: A hinge for opening a door (1) up to an angle of about 180 DEG . A mounting plate (4) and a hinge casing (3) are connected by two hinge arms (5, 12). The movement of the hinge arms (5, 12) is controlled in respect of each other by a rack (13, 14) and pinion (8) arrangement. One hinge arm (5) carries the pinion (8) and this hinge arm (5) is guided at two points of connection in guiding grooves (10, 11) in the mounting plate (4). The guiding groove 11 is in the form of a curved slideway. <IMAGE>
Patent GB-2071888-A (GB)
Title: A bedroom light control device
IPC: H03K17/94
Filed: 1981-01-28
Abstract: A bedroom light control device for a mains operated bedroom light (4) comprises a microphone (6), a solid state switching circuit (18) for switching the light on and off in response to a non-continuous sound and a sensitivity control member (VR1) for controlling the sensitivity of the device to the sound. The power supply for the device comprises a transformer (T1) rectifier means (BR1) and capacitor means (C1, C2). Timing means (14) produces an output signal consequent upon the microphone detecting the sound, first switch means (16) switches between first and second states consequent upon receiving the signal from the timing means, and second switch means (BR2, 18) is responsive to signals from the first switch means and makes or breaks a mains circuit for the bedroom light to cause the bedroom light to switch on and off. <IMAGE>
Patent GB-2070623-A (GB)
Title: Methods and apparatus for disintegrating plastics and/or rubber materials
IPC: B02C19/16
Filed: 1981-02-03
Abstract: A method of disintegrating plastics and/or rubber material, such as the plastics and/or rubber casings of metal cores, for the purpose of recovering the metal from scrap cables for example. The material to be disintegrated is cooled to a temperature at which it becomes brittle. The embrittled material is then subjected in at least one station to mechanical oscillations which cause the material to disintegrate. The oscillations suitably have a frequency in excess of 30 Hz and an amplitude of about 2-3 mm. The oscillations can be imparted with the aid of a vibratory device with which the embrittled material is brought into contact.
Patent GB-2094200-A (GB)
Title: Electron beam apparatus for effecting an annular weld
IPC: B23K15/04
Filed: 1981-02-25
Abstract: A heat exchanger tube (1) is welded to a tube plate (2) by an electron welding beam from a source (4). The source (4) is accommodated in a chamber (5) and is constructed to emit a frusto-conical welding beam. The tube (1) is blocked by an expansible plug (14) and the wall of the chamber (5) is sealed to the tube plate (2), so that the chamber (5) can be evacuated. After evacuation, the source (4) is actuated to perform the welding operation. <IMAGE>
Patent GB-2094251-A (GB)
Title: Towing hitch
IPC: B62K27/00
Filed: 1981-03-05
Abstract: A towing hitch (4) is provided for coupling a towing vehicle, such as a bicycle, to the rigid draw bar of a trailer. The towing hitch comprises a bendable shank (13, 14) serving to transmit both tension and compression forces between two towing-hitch end pieces (10, 11) while, at the same time, allowing both side-to-side and up-and-down turning movement of the towing vehicle. The end pieces (10, 11) are mutually relatively rotatable about the shank axis to allow canting of the towing vehicle; this is of particular importance where the vehicle is a bicycle as it permits the vehicle to lean over when cornering. The shank may comprise a compression-transmitting outer sleeve (14) and a tension-transmitting central elongate element (13) such as a wire or chain. Preferably the trailer is a two-wheeled trolley which can be detached from its draw bar for use, for example, as a shopping or golf trolley. <IMAGE>
Patent GB-2097477-A (GB)
Title: Revolving windmill generator apparatus
IPC: F03D1/04
Filed: 1981-04-24
Abstract: The apparatus comprises a duct structure 1 and a revolving body 6, a windmill 13 and a generator 12. The duct structure 1 has an annular first floor 2 and an annular first roof 3 arranged substantially horizontally, vertical stationary guiding partitions 4 provided radially between the first floor and roof, and a central cylindrical space 5. The revolving body 6 has a circular second floor 8 and a circular second roof 9, and a pair of working fluid guide pillar members (10, Fig. 2 not shown) arranged between the second floor and roof. The revolving body is located within the cylindrical space 5 and is adapted for rotation about an axis coaxial with that of the central axis of the cylindrical space. The windmill 13 is connected to a generator 12 and supported for rotation about a horizontal axis within a hollow space, defined by the floor 8, roof 9 and the pair of guide pillar members (10) of the revolving body. Wind directional means 22 is provided for turning the revolving body 6 to point the windmill 13 in the windward direction. A number of such windmill units may be stacked one on top of the other to increase the electrical output obtained from a single installation (e.g. Fig. 8, not shown). <IMAGE>
Patent GB-2087632-A (GB)
Title: Carbonaceous deposition reduction
IPC: B01J37/02
Filed: 1978-10-23
Abstract: The invention is concerned with providing substrates with coatings obtainable from sols, for example to protect the substrate (such as in nuclear reactors or hydrocarbon cracking plant) or to provide a carrier for catalytically active material. Hitherto, coatings obtained from sols have had a high porosity and high surface area so that they have not been entirely satisfactory for the above applications. In the invention, dense, low-porosity coatings are provided by contacting the substrate with a sol of refractory material (e.g. CeO2 or SiO2) convertible to a gel of density at least 40% of the theoretical density of the refractory material, and converting the sol to the gel. Optionally, the gel may be converted to a ceramic coating by firing.
Patent GB-2077750-A (GB)
Title: Method and Composition for Thickening Aqueous Based Compositions
IPC: C08J3/03
Filed: 1981-06-02
Abstract: Aqueous based compositions are thickened by mixing in a thickener which is in the form of a water-in-oil emulsion. Preferably the thickener contains a water soluble acrylamide or methacrylamide homopolymer or a copolymer of (meth)acrylamide with other suitable (e.g. carboxylic acid or cationic) monomers. The polymers may be lightly cross-linked. The thickeners are of low viscosity and easy to handle, but act to thicken aqueous based compositions effectively and quickly, typically dissolving in water in about one minute. They are also resistant to bacterial attack. Examples of aqueous compositions which may be thickened are emulsion paints, carpet backing compounds, textile pigment printing pastes, drilling muds, rubber latex, and wallpaper paste.
Patent GB-2103643-A (GB)
Title: Coal liquefaction
Inventor: DORAWALA TANSUKHLAL GOKALDAS
IPC: C10G1/06
Filed: 1981-08-14
Abstract: Solid fuel is liquefied at 700-900 DEG F and a pressure of upto 400 psig in the presence of a solvent such as anthracene oil, water and a material which decomposes to carbon monoxide and hydrogen, e.g. methanol or formaldehyde.
Patent GB-2107060-A (GB)
Title: Temperature sensors
Inventor: GILBERT MARTYN NEIL
IPC: G01K7/34
Filed: 1981-08-18
Abstract: A temperature sensor 1 is constructed as a capacitive element in which the dielectric material 4 between two electrodes 2 changes its dielectric constant abruptly at a specific temperature. The preferred dielectric material is de-ionised water whose dielectric constant changes abruptly on freezing, i.e. at 0 DEG C, and the preferred electrode material is aluminium with aluminium oxide layers 3 formed between the water and the metal, so as to prevent reaction of the water with the metal. The sensor can form a frequency determining capacitor in an oscillator circuit whose output is counted. Alternatively, the capacitance can be monitored by observing the rate of charging/discharging of the capacitor when coupled to charging/discharging current circuits. <IMAGE>
Patent GB-2083702-A (GB)
Title: Amorphous semiconductors
IPC: H01L31/076
Filed: 1981-09-07
Abstract: A semiconductor material comprises amorphous Si containing F (a- Si : F) together with a band gap modifying material (e.g. Ge or Sn). The inclusion of F in the material permits the incorporation of the band gap modifier without degradation of other properties due to creation of dangling bonds. H may also be incorporated in the material. The material may be doped and may be used in Schottky, MIS, PN and PIN type solar cells or in electrophotographic devices.
Patent GB-2084341-A (GB)
Title: Film threading a motorised camera
IPC: G03B17/42
Filed: 1981-09-10
Abstract: Film 14 is threaded automatically to a film capturing post 108 of a take- up spool 110 by means of a roller 54 having a flat (60, Fig. 2) which frees the film before and after the film- threading operation. Take-up spool 110 rotates at a slightly faster rate than roller 54. Roller 54 may be of polyurethane, have a plurality of protuberances which engage the film sprocket holes, and be slightly sloped to urge the film against a guide 26. When the camera back 28 is closed (a) door latch lever 68 enters slot 69 and closes a motor drive switch to commence rotation of take-up spool 110 and of a clutch gear (104) which is engageable with a partial index gear (52) attached to roller 54 (b) a post 36 frees a spring-biased pawl wheel (48) from a spring-biased pawl 40, allowing engagement of the partial index gear with the clutch gear and enabling one complete revolution of roller 54, whereupon the pawl wheel is engaged by pawl 40 once again. <IMAGE>
Patent GB-2102507-A (GB)
Title: Manual pump with reducible transversable bulk
Inventor: CASTIGLIONI FERDINANDO
IPC: F04B33/00
Filed: 1982-05-06
Abstract: A manual pump consists essentially of a cylindrical body (11) in which moves a piston (12) thrust by a stem (13) actuated by means of an external handle (14); the handle is fitted to the stem in a removable manner so as to be removably housed in the cylindrical body; the base of the cylindrical body extends as a leg (25) which terminates in a stand (26) having transversal dimensions not greater than the diameter of the body and having rest surfaces (27, 28) for the operator's feet to rest on. <IMAGE>
Patent GB-2098697-A (GB)
Title: Apparatus for hydraulically actuating a friction clutch for motor vehicles
IPC: F16D23/14
Filed: 1982-05-13
Abstract: Apparatus for hydraulically actuating a friction clutch for motor vehicles, comprising an hydraulic cylinder (9) having a tubular operating piston (8) and a release bearing (6), the non- rotating ring of which is lengthened to form a cylindrical extension (7). The operating piston (8) and the cylindrical extension (7) can be locked together by means of a shackle or claw (12). The friction clutch can therefore be easily assembled and dismantled. The shackle (12) may be of wire as shown or may instead be a claw or claws mounted pivotally on the piston (8) to engage an annular flange on the extension (7). <IMAGE>
Patent GB-2103938-A (GB)
Title: Folding hood for sheltering golf clubs
Inventor: VALLE EDOARDO
IPC: A63B55/00
Filed: 1982-06-18
Abstract: The hood comprises a support clamp 23, 24 attached to the club carrying cart handle (MA), a plurality of bows (21) articulated to the support clamp (23, 24), a sheet of waterproof material (22) stretched over the bows (21) and means 25 for engaging the uppermost bow with the handle bar (MA) and holding the hood (20) in a steadily closed position. <IMAGE>