baber/WOPTO huggingface dataset:
Patent GB-1367893-A (GB)
Title: Structural beams
IPC: E04C3/16
Filed: 1971-12-16
Abstract: 1367893 Timber beams WALTER HOLME & SONS Ltd 16 Dec 1971 [22 Dec 1970] 60798/70 Heading E1W A timber beam comprises upper and lower vertically spaced flanges 10a which may be formed integrally of by two longitudinally united battens. The flanges are spaced and united by longtiudinally spaced webs 15 engaging in longitudinal grooves, which webs may be. solid or formed by two opposed wooden sheets. Bridge pieces 13 are fixed at least in the top flange between the spaced ends of the flanges. The space at the top may be wider than the space at the bottom or the space may be V-shaped and a spacer 13 present only at the top. The beam may be formed as an arch.
Patent GB-1215196-A (GB)
Title: Can opener
Inventor: ASTON DONALD
IPC: B67B7/46
Filed: 1968-11-12
Abstract: 1,215,196. Can-openers. GEO. SALTER & CO. Ltd. 12 Nov., 1969 [12 Nov., 1968; 21 Dec., 1968], Nos. 53503/68 and 60918/68. Heading B8D. A wall-mounted can opener comprises a carrier plate 31 pivoted at 32 to a main bracket 10 and carrying a driven cutter wheel 27 which is brought downwardly into a can-cutting position adjacent a traction feed wheel 24 on initial rotation of a handle 22 in one direction (i.e. clockwise) by a cam disc 42 carried on the traction feed wheel shaft 17 and engaging a flange 39 of the pivoted carrier plate. The cutter wheel is retained in this position by a catch plate 44 loosely-mounted on the shaft 17 and having a shouldered end 47 engaging the carrier plate flange 39. On reverse handle rotation, a radial face of a sawtoothed projection 49 on the side face of the can, Fig. 4, pivots the catch plate against the bias of a torsion spring 45 out of engagement with the carrier plate. On continued reverse handle rotation, the pivoting catch plate engages the side edge of the carrier plate to pivot the latter upwardly until the flange 39 abuts the cam disc thereby moving the cutter wheel out of the can-cutting position. The sawtoothed form of the projection 49 permits the cam disc to rotate past the catch plate during clockwise can-opening rotation of the handle. A spring-loaded permanent magnet 55 is provided for retaining the removed can end.
Patent GB-1276837-A (GB)
Title: Electric motor speed control systems
Inventor: BARR HARRY NORMAN
IPC: H02K21/12
Filed: 1968-07-13
Abstract: 1276837 Permanent magnet generators GENERAL MOTORS Ltd 10 July 1969 [13 July 1968 27 Dec 1968] 33539/68 and 66121/68 Heading H2A A voltage generator 2 for the control system of a motor 1 is mounted in the end of the motor, consists of a rotating permanent magnet 4 which causes variations in the flux through the armature 8 of a fixed coil 3. The output is varied by adjusting the magnetic shunt provided by screw 12 and temperature variation is reduced by placing a further temperature sensitive shunt 15, Fig. 2, adjacent the annular magnet 14, which is heat insulated from the motor shaft by plastics bushes 16. The generator is screened from motor flux by the plate 10 and core 11. The coil 3 may be symmetrically mounted on armature 8, Fig. 4 (not shown), and in a further arrangement, Fig. 5 (not shown), the coil 3 is mounted so that flux may be varied by means of a screw passing through the coil and the base of a U-shaped armature 8.
Patent GB-1280880-A (GB)
Title: Attenuator for electromagnetic radiation
Inventor: VINOGRADOV EVGENY ALEXANDROVIC
IPC: H01P1/26
Filed: 1969-12-23
Abstract: 1280880 Attenuators ORDENA LENINA FIZICHESKY INSTITUT IMENI PN LEBEDEVA AKADEMII NAUK SSSR 23 Dec 1969 62523/69 Heading H1W An attenuator for use in the millimetric and submillimetric bands comprises three polarization filters 1, 2, 3 mounted on a common axis in non-parallel planes (not apparent from the figure). Each filter comprises parallel wires extending across a circular frame, the wires in frames 1 and 3 being so arranged that their projections in a plane normal to the attenuator axis are parallel. The filters are mounted within an axially rotatable tube 6, the filter 2 being independently rotatable within the tube. These rotations are respectively controlled by worm gears 7, 9. Reflected energy may be absorbed by the tube 6 or dissipated in space.
Patent GB-2002403-A (GB)
Title: Heat-treatment polyesters
IPC: C08G63/88
Filed: 1978-07-27
Abstract: Linear polyester, such as polyethylene terephthalate, having a low acetaldehyde content and suitable for packing of food and beverages intended for human consumption is produced by heating a linear polyester having an intrinsic viscosity of about 0.5-0.85 at a temperature of 180-230 DEG C, preferably 200-220 DEG C, for about 4 to 12 hours.
Patent GB-2003714-A (GB)
Title: An agricultural machine for mulching and sowing
IPC: A01C7/04
Filed: 1978-07-28
Abstract: An agricultural machine for laying a strip of plastics mulch material onto the soil and simultaneously sowing through said strip, comprises a device (1) for unrolling a plastics film, seed feeding means (5, 17), dibble cups (7) for piercing simultaneously the film and positioning the seed through the film perforations, floating frames (11) which can be raised, at least one pair of rolling wheels (28) capable of ensuring an adjustable force depending on the state of the ground and weather, and a furrowing disc (30). <IMAGE>
Patent GB-2006175-A (GB)
Title: Process and apparatus for the recovery of metal oxides
IPC: C01F5/10
Filed: 1978-08-21
Abstract: The disclosure is concerned with a process and apparatus for the recovery of metal oxides such as, for example, magnesium oxide from contaminated starting materials such as industrial scale in which the starting material is dissolved in hydrochloric acid to produce a brine which, after concentration, is thermally decomposed to produce metal oxide and hydrogen chloride, waste gas from the thermal decomposition step, and which contains hydrogen chloride, being brought into intimate contact with the brine to effect concentration. The brine to be concentrated is sprayed into a stream of waste gas and at least a proportion of the sprayed brine is resprayed one or more times into waste gas, the amount of brine being resprayed being controlled to maintain the pH value of the concentrated brine produced within a preselected range of values.
Patent GB-2006014-A (GB)
Title: Method and apparatus for reducing the concentration of ozone
IPC: F21V29/00
Filed: 1978-10-13
Abstract: The concentration of ozone in air present in or fed to a confined space (e.g. the passenger space of an aircraft) is reduced by monitoring the concentration of ozone in the space or in a line through which air is fed thereto and feeding nitric oxide (NO), either undiluted, or admixed with an inert carrier gas, e.g. nitrogen or argon, to the space or line in an amount such that the final ozone concentration is achieved which is not substantially above zero.
Patent GB-2017172-A (GB)
Title: Loom Swells
IPC: D03D49/54
Filed: 1979-03-07
Abstract: In a shuttle box with two plates (1, 2) forming the bottom thereof and a fixed guiding wall (4), a resiliently- mounted swell (6) is arranged, opposite the fixed wall (4), constructed as a bar with deep saw cuts (21) at uniform intervals over at least 3/4 of its length to act as a flexible member with stiff extensions (22, 23). Spring force is applied to each of the end pieces and to the flexible portion of the bar. The swell (6) is made of bonded plywood with vibration-damping properties. <IMAGE>
Patent GB-2024232-A (GB)
Title: Urethane binder for no-bake and cold-box foundry cores and moulds
IPC: B22C1/22
Filed: 1979-05-30
Abstract: Binder compositions suitable for manufacturing foundry cores and moulds by the "no-bake" and "cold- box" process comprise a liquid polyisocyanate, a polyol component which comprises either an aromatic amine polyol or an adduct of ammonia and an alkylene oxide, and optionally a gaseous tertiary amine curing agent. Foundry cores and moulds for casting light-weight metals are prepared using a binder composition comprising a liquid polyisocyanate, an amine polyol, particularly one as defined above, and optionally a gaseous tertiary amine curing agent. The cores and moulds produced exhibit excellent shakeout properties.
Patent GB-2030171-A (GB)
Title: Luminous laminate for use in instrument dials and method of making laminate
IPC: G04G9/00
Filed: 1979-08-31
Abstract: The present invention relates to a laminate suitable for use in instrument dials which avoids the potentially hasardous direct exposure of operatives involved in instrument assembly to luminising compounds. The laminate comprises a first substantially translucent film 1, a second film 2 and a layer of luminous material 3 sandwiched therebetween. In a method of the invention the luminous markings 3 are applied to one of the films 1, 2 and then covered with the other of said films 2, 1. The luminous material is activated by tritium. The laminate may be used for dials or hands on dials. <IMAGE>
Patent GB-2033810-A (GB)
Title: Lubricating extrusion feedstock
IPC: B21C23/32
Filed: 1979-10-26
Abstract: In the "Linex" extrusion process of British Patent 1488445, wax or other suitable fusible solid lubricant is applied to each of the ungripped surfaces (3,4) by supporting a respective stick (1) of the lubricant in a cylinder (5,6) having an open end (7,8) facing the respective ungripped surface (3,4) in which cylinder (5, 6) this stick (1) is a loose sliding fit and introducing compressed air (or other gas) into the cylinder (5,6) to apply a substantially constant biassing force urging the stick (1) into engagement with the ungripped surface (3,4) and at the same time (by leaking between the stick (1) of lubricant and the cylinder (5,6)) to cool the stick (1) of lubricant to inhibit melting. <IMAGE>
Patent GB-2093996-A (GB)
Title: Improvements in or relating to sonar arrays
IPC: G10K11/00
Filed: 1980-05-03
Abstract: A sonar receiver array has a body (10) provided with hydrophone support arm (11). The support arm (11) is pivotable on the body (10) between a stowed position alongside or within the body (10) and a deployed position where it extends laterally of the body (10). <IMAGE>
Patent GB-2055218-A (GB)
Title: Optical recording member
IPC: G11B7/2403
Filed: 1980-06-04
Abstract: An optical recording member (10) has a reflective substrate (14) and a thin dye-in-polymer layer (12) on the substrate, the dye-in-polymer layer (12) being made to be responsive to an optical recording apparatus so that at least the dye portion of that layer will migrate from the areas struck by the optical recording apparatus to expose the reflective substrate. Prior to the recording process, the dye-in-polymer layer (12) forms an anti-reflection layer to cover the reflective substrate (14). An overcoat layer which can be combined into a single support, or a spaced top layer can be provided. <IMAGE>
Patent GB-2077699-A (GB)
Title: Coiler drum with gripper mechanism
IPC: B21C47/32
Filed: 1980-06-16
Abstract: A coiler drum (2) has a gripper mechanism located in a wedge- shaped slot (26, 26) for holding the end of a strip (M). The gripper mechanism consists basically of a pair of jaws (28) which can move in slot (26) between the wider inner part and the narrower outer part and have complementary wedge surfaces in contact with the wedge surfaces of the slot. Spring (30) urge the jaws apart to facilitate insertion of the end of strip (M) between the jaws. When tension is applied to the strip, the end is gripped by the jaws (28) by wedge action, the jaws having moved to the narrower part of the slot. Externally controlled fluid-operated rams (32, 34) may initially act on the jaws (28) to increase the grip. In modifications, the rams (32, 34) may be replaced by springs acting radially on the jaws and the jaws may take the form of rollers. <IMAGE>
Patent GB-2078364-A (GB)
Title: Fuel inlet assemblies for fuel reactors
IPC: F23R3/10
Filed: 1980-06-17
Abstract: A fuel inlet assembly for a fuel reactor which has an inner shell mounted coaxially within an outer shell, which is closed-at one axial end, the outer shell having an inlet for introducing combustion air into the annular space between the inner and outer shells, the other end of the inner shell being spaced from the inlet assembly which is mounted at the other end of the outer shell, the fuel inlet assembly including a base plate which is mountable on said other end of the outer shell, and having a fuel inlet aperture therein. A first frusto-conical inlet cone is mounted on the base plate to surround the fuel inlet aperture and a second frusto-conical inlet cone is mounted coaxially therewith by means of a plurality of circumferentially spaced wanes which extend in radial planes, the second cone overlapping the first cone, whereby a portion of the combustion air can flow through the annular space between the first and second inlet cones, with an axial component of velocity, to premix with the fuel entering at the first fuel inlet aperture.
Patent GB-2060123-A (GB)
Title: Motion Transmitting Apparatus
IPC: F16H49/00
Filed: 1980-08-13
Abstract: In motion transmitting apparatus comprising a ring gear 42, a tubular flexible gear 43 and wave generating means 35 operable to progressively force the flexible gear 43 into engagement with the ring gear 42, the tubular flexible gear comprises a diaphragm 51 attached to a shaft 45 and in order to reduce axial stress when the apparatus is assembled, which may produce residual stresses causing failure of the diaphragm, the thickness of the diaphragm 51 is between 1 and 2 per cent of the bore diameter of the tubular portion of the flexible gear 43. <IMAGE>
Patent GB-2063302-A (GB)
Title: Sintered silicon nitride
IPC: C04B35/593
Filed: 1980-09-19
Abstract: A ceramic product produced by sintering a powder mixture consisting essentially of 100 weight parts of silicon nitride, 0.1 to 10 weight parts of at least one of the oxides of yttrium, scandium, cerium, lanthanum and the metals of the lanthanide series, 0.1 to 10 weight parts of aluminum oxide, 0.1 to 10 weight parts of silica and 0.1 to 4 weight parts of aluminum nitride, wherein the ratio of aluminum nitride to silica (ALN/SiO2) is 0.1 to 10.
Patent GB-2065105-A (GB)
Title: Dibenzazepines
IPC: A61K31/55
Filed: 1980-11-03
Abstract: Diabenzazepines are prepared by the following route:   <IMAGE> (R<1-3>=C1-3 alkyl, or NR<2>R<3>=heterocyclic group; n=1-3), optionally followed by salt formation. The products are antiarrhythmic agents.
Patent GB-2091677-A (GB)
Title: Container spouts
IPC: B65D1/20
Filed: 1981-01-14
Abstract: A spout 4 for a container 2 has a circular outer edge to enable it to be disposed inside the container and an inner edge shaped to form a channel 7 through which liquid can flow easily. The channel is formed by two opposed convex sections 5, 6 of the inner edge. The spout 4 may be integral with the container or a removable insert. <IMAGE>
Patent GB-2091768-A (GB)
Title: Shoe stiffeners
IPC: D06M15/263
Filed: 1981-01-24
Abstract: Shoe stiffeners are known comprising a textile fabric impregnated with a stiffening composition and incorporated with a latex adhesive. The use of latex adhesive is not normally satisfactory. In the present invention particles of wax or wax-like material are dispersed in a stiffening composition comprising a stiffening polymeric material. This appears to facilitate adhesion of a textile fabric impregnated with said composition to shoes and to provide a shoe stiffener having improved properties.
Patent GB-2070276-A (GB)
Title: Polarising optical system
IPC: G01B9/02
Filed: 1981-02-13
Abstract: A polarising interferometer wherein at least one of the two measuring arms (13, 14) contains an optical cube corner (16 or 19) devoid of coatings on its reflecting surfaces and with its refractive index selected so that the resulting retardation and orientation of the principal axes causes the cube corner to act as a  lambda /4 plate, the beam through the uncoated cube corner being reflected back through a movable end reflector (18 or 20) insensitive to tilt and lateral movement so that the uncoated cube corner acts as a  lambda /2 plate on double transmission, and phase difference in the output beams is detected by an analyser (23, 26, 28) forming four spatially separated component beams respectively polarised at differing azimuth angles, which give two outputs in phase quadrature, of equal amplitude and free of d.c. offsets. The uncoated cube corner acting as a  lambda /4 plate on single transmission and a  lambda /2 plate on double transmission also has application to other polarising optical systems, especially where a coated cube corner has hitherto been used. <IMAGE>
Patent GB-2092927-A (GB)
Title: Seal drum with end closure having reinforced seams
IPC: B21D51/32
Filed: 1981-02-16
Abstract: A drum 20 with sealed end closures 22 and 24 and a method of forming the drum in which a tubular shell is formed to define drum side walls. An end closure is applied to at least one end of the shell with the adjacent peripheral edges of the shell and closure being formed into a circumferentially extending chime 26 with those peripheral edges folded to provide a seam with five layers of material in a radial direction. The chime 26 is thereafter formed into a reinforced chime folded to provide a seam of predetermined shape with seven layers of material in a radial direction and having increased sealing, handling, and strength characteristics while retaining a minimum desired length for the seam.
Patent GB-2082104-A (GB)
Title: Automatic stud driver
IPC: B25B29/00
Filed: 1981-03-12
Abstract: A stud driver automatically grasps a stud by a pair of jaws 50 once the stud is inserted into the stud driver. The jaws are biassed open initially by a spring biassed plunger 60 with a ridge 62. When the stud rotates up the jaws, in jaw screwthreads, before the stud is rotated into the workpiece, the plunger is retracted by the stud to allow the jaw to close and grip it for rotation into the workpiece. The jaws are enclosed with a carriage 40. In the peripheral wall of the carriage, two sets of balls 44 and 46 are held. The balls 44 prevent the jaws from sliding out of the carriage 40 and balls 46 engage bridges 58A in grooves 58 in the jaws to prevent them from rotating in the carriage. The carriage 40 is driven by an extending post 41 engaging a slot in a driven head 30 connected to the driving means. The carriage 40 and driven head 30 are held in an uncomplicated hollow cylinder body. This has stepped surfaces engaging the balls for jaw retention and drive. The driver has an optional stud retainer 71. This has radial pins inwardly biassed to centre the stud. <IMAGE>
Patent GB-2073249-A (GB)
Title: Ferrite Free Precipitation Hardenable Stainless Steel
IPC: C22C38/40
Filed: 1981-04-01
Abstract: An age-hardenable stainless steel having less than 5% by volume ferrite in all treatment conditions and improved ductility, consisting of, in weight percent, from 0.07% to 0.12% carbon, 0.20% to 3.0% manganese, 0.07% maximum phosphorus, 0.15% maximum sulfur, 2.0% maximum silicon, 15.5% to 17.5% chromium, 6.0% to 9.0% nickel, 0.95% to 2.50% aluminum, 0.005% to 0.20% nitrogen, 0.50% maximum molybdenum, 0.75% maximum copper, up to 0.12% titanium when nitrogen does not exceed 0.035% up to 0.05% cerium when nitrogen is greater than 0.035%, up to 0.07% boron, and balance essentially iron.
Patent GB-2076024-A (GB)
Title: Flat knitting machine having a pattern change arrangement
IPC: D04B15/70
Filed: 1981-04-13
Abstract: The invention relates to a flat knitting machine having a pattern change arrangement in which there is automatic positioning of the selector butts (17) of selector sinkers (15) longitudinally of the sinkers by means of a setting member (34) which is arranged as a setting trolley (20) which can be moved in appropriate needle stages along the longitudinal direction of the needle bed (10). The operation of the setting member (34) and of the setting trolley (20) may be controlled by a programmer (45). <IMAGE>
Patent GB-2074636-A (GB)
Title: Fluid loss control system
IPC: C08K3/34
Filed: 1981-04-27
Abstract: A composition capable of imparting improved fluid loss control properties to aqueous systems is formed from a combination of (a) a solid, particulate silicate or alumino- silicate material; (b) a reaction product formed from a polyvinyl alcohol and at least 1 per cent of stoichiometry of an aldehyde-containing or -generating agent; wherein the amount of component (a) to component (b) is in the ratio of at least about 0.75:1. The invention also provides improved drilling fluids containing said composition and a process of drilling bore holes using the improved drilling fluid.
Patent GB-2210751-A (GB)
Title: A radar apparatus
Inventor: WALLIS TIMOTHY ARTHUR
IPC: G01S13/10
Filed: 1981-05-08
Abstract: A radar apparatus transmits a pulse related to Lo and receives a corresponding return within the duration of the transmitted pulse. The returned pulse and a proportion of the energy of the transmitted pulse are mixed in a mixer (5) to produce a demodulated pulse ("VIDEO") of duration equal to the overlap of the transmitted and returned pulses. The demodulated pulse is mixed in a mixing circuit with bipolar references signals (R1 and R2) having polarity transitions at different timings. A circuit then forms the integral over the duration of the modified pulse of a combination of inverted P4, non inverted P2, and suppressed portions P1, P3 of the modified pulse. The portions are defined by the transitions in the reference signals.   In this way a predetermined range law is achieved. <IMAGE>
Patent GB-2084183-A (GB)
Title: Solid foam fuels
IPC: C10L11/04
Filed: 1981-09-16
Abstract: Solid foams, suitable as fuels and used for kindling fires, or for the ignition of waste products, eg. oil slicks contain liquid to solid hydrocarbons, eg. kerosene, paraffin wax, crude petroleum wax mixtures, petroleum, Diesel oil, fuel oil etc. as dispersed phase, the composition containing:     a) 21 to 54 per cent by mass water,   b) 0 to 35 per cent by mass solids,   c) 40 to 75 per cent by mass hydrocarbons, and   d) 3 to 20 per cent by mass framework- forming substances.   The framework-forming substances may be a hardenable prepolymer or hardenable resin. The composition may include dispersion aids and water as continuous phase and possibly integrated solids. The hardenable resin or prepolymer and modification agents are mixed with the water and dispersion aids, in an emulsifier, to a fine dispersion then liquid hydrocarbons, solids, and optionally inert gas (eg. air) is emulsified in a second emulsifier with addition of a hardener.
Patent GB-2090965-A (GB)
Title: Louvre windows
IPC: E06B7/084
Filed: 1981-10-16
Abstract: An adjustable louvre window comprises a pair of parallel oppositely disposed frame members and at least one panel or shutter element located between the frame members, wherein each end of the or each panel or shutter element is movably mounted to the frame member by a mounting member (10). Each mounting member (10) has a boss (21) which is rotatably located within an opening within the frame member. Retaining means (23) are provided to substantially prevent axial movement of the boss (21) in the opening except at a predetermined angular disposition of the mounting member relative to the frame with the angular disposition being one which the mounting member does not attain during normal opening and closing of the window. <IMAGE>
Patent GB-2083533-A (GB)
Title: Window shade roller assembly
IPC: E06B9/44
Filed: 1980-04-07
Abstract: A shade roller (10) having a chain (36) operated mechanism (16) at one end thereof controlling the position of the shade on the window, and means (42, 44, 46) for maintaining the chain operated mechanism (16) against a bracket (18) to help insure proper positioning and operation of the said mechanism.