baber/WOPTO huggingface dataset:
Patent GB-1324040-A (GB)
Title: Economizer for shell and tube steam generator
IPC: F22B1/02
Filed: 1970-12-21
Abstract: 1324040 Vapour generators COMBUSTION ENG Ine 21 Dec 1970 [24 Dec 1969] 60604/70 Heading F4A A shell and tube heat exchanger for vapourizing a liquid comprises a generally cylindrical shell 12 having a bundle of tubes 28, each tube being attached at one end to a tube sheet 18, 20, and through which tubes is circulated a heating fluid, inlet means 64 for the vapourizable liquid, and a substantially closed compartment 40 spaced from the shell wall for preheating the liquid. The latter enters the exchanger through two inlet nozzles 36 with thermal shields 64 communicating with an annular space 46 in compartment 40. Liquid passes through openings 68 in the inner wall 44 and passes downwardly across baffle plates 54, 56 and through opening 65 where it flows through annular passage 66 into the evaporator section. A superheat section is provided by baffle plates 70 and cylindrical wall 68<SP>1</SP> from which the vapour discharges through outlet 34. The heating fluid enters through nozzle 30 and exits through nozzle 32.
Patent GB-726610-A (GB)
Abstract: 726,610. Supply fittings for baths &c. SHARP, T. May 26, 1953 [June 17, 1952], No. 14658/53. Class 26. [Also in Group II] Apparatus for mixing and delivering hot and cold water comprises a body 2 of cruciform unitary construction providing two valved inlets 3 for hot and cold water, and opposed branch passages 4 and 6 forming outlets for delivering hot or cold water or a mixture thereof to either of two points of discharge, such as a bath or shower, the branch passages 4 and 6 having a manually adjustable, hollow, tapered plug type transfer valve 18, having an open inner end through which the valve plug 18 remains in open communication with a passage 13 intermediate the inlets 3, and the wall of the valve plug 18 having ports 26 by means of which either one of the branch passages 4 and 6 may be placed in communication with the hollow interior of the valve plug 18.
Patent GB-2006808-A (GB)
Title: Photochromic aziridine recording media
IPC: C09K9/02
Filed: 1978-06-28
Abstract: An erasable imaging medium comprises a photochromic aziridine of specified formula coated on a substrate, the aziridine being mixed or coated with a transparent oxygen- impermeable substance which preferably inhibits crystal growth e.g. polyvinylalcohol or gelatin. The aziridines are imaged using an electron beam or U.V. light and bleached with visible radiation. Dyes may be incorporated in the transparent substance to give sensitivity to different wavebands and the substance may be covered with a water-proof plastics layer. The aziridines may be deposited by sublimation onto a cold substrate, below -120 DEG C, or from a benzene solution to give a homogeneous or monocrystalline layer. The medium may be used to measure dosage of U.V. light e.g. by sunbathers or in the treatment of psoriasis by comparison of the changed colour with a calibrated standard, or to measure daylight as the coloured medium bleaches.
Patent GB-2024254-A (GB)
Title: Exothermic mixture for repairing moulds
IPC: F27D1/16
Filed: 1978-07-03
Abstract: A composition for use in a method of repairing cavities in metal moulds includes a thermite mixture, of aluminium and iron oxide, intermixed with a compatible component wholly or partially soluble in the resulting slag and preferably present in an amount in the range of from 5 to 53% by weight of the total mixture. Usually in free flowing pulverulent form, the mixed composition is poured into the cavity, specifically that eroded in a cast iron ingot mould baseplate, and fired by ignition. Chromite sand is the preferred component.
Patent GB-2030530-A (GB)
Title: Preventing leakage from power steering systems
IPC: B62D5/32
Filed: 1978-09-29
Abstract: A pressure medium control installation, particularly for hydrostatic steering devices in motor vehicles, has a positive displacement pump 20 actuatable by a steering wheel and acting as a metering device, a high pressure oil pump 7 serving a source of hydraulic power, a servomotor 27 for moving steerable vehicle wheels, and an inner valve element 3 which is mounted concentrically with an outer valve element 2 and casing 1 and which is relatively displaceable against the restoring force of spring elements. The two valve elements 2;3 conjointly establish a short-circuiting connection via a system of control channels 12; 13; 14; 15; 10; 21; 22; 17; 30; 11 in the neutral position and the working pressure is adjusted by relative displacement of the valve elements. At the same time the positive displacement pump and the servomotor are appropriately loaded simultaneously via additional control channels. The system of control channels in the outer and inner valve elements is symmetrically disposed in the axial direction in such a manner that a control channel 18;23 in communication with the positive displacement pump is associated with a respective further control channel 21;30 in communication with the servomotor 27. Each pair of associated channels is adjacent further control channels 10; 15; 11; 15 supplied with pressure medium from the high pressure oil pump 7 to minimize leakage particularly to the low pressure channels receiving pressure medium returned from the servomotor. <IMAGE>
Patent GB-2030254-A (GB)
Title: Wobbler type cranking system
IPC: F16H23/04
Filed: 1978-10-03
Abstract: Rotary motion of a shaft 1 is converted into linear reciprocating motion of pistons 3, or vice-versa, by means of a multiple bell crank lever 2 comprising two or more first arms connected at a fulcrum and radiating in a plane and a single second arm connected to the first arms at said fulcrum and extending along a radius perpendicular to said plane. <IMAGE>
Patent GB-2008478-A (GB)
Title: Vehicle load floor and method of making same
IPC: A47C7/40
Filed: 1978-10-27
Abstract: A blow-molded load floor especially for use as a fold down multi-purpose vehicle seat back core and a method of making same. The load floor is blow-molded in a type of mold which provides indented parts 88 or 96, in one or both walls that are of such depth as to engage and weld with the inner surface of the opposite wall or walls of the load floor or with similar indented parts 98 which are formed in the opposite wall or walls. The load floor has the indented parts generally distributed about the area of the load floor thereby forming tansverse tying links between the opposite walls thus giving the load floor great strength. The tying links can be provided specifically at any location of the load-floor, in suitable size and configuration at places where hinges, connectors, brackets or plates are to be secured. One embodiment described includes an elongate member reenforcing member incorporated therein during blow- molding to become a permanent part thereof. A method is described which prevents the reenforcing member from disturbing the finished product after molding is completed. <IMAGE>
Patent GB-2015509-A (GB)
Title: Recovery of methacrylic acid and alcohol in methacrylate production process
IPC: C07C51/48
Filed: 1979-02-26
Abstract: Methacrylic acid esters are effectively obtained from a feedstock dilute aqueous solution of methacrylic acid containing by-produced acetic acid and others, obtained by gas phase catalytic oxidation of isobutylene, tert.butyl alcohol or methacrolein, by (1) subjecting said feedstock to extraction in a methacrylic acid extracting zone (a), (2) separating the resulting extract solution into two fractions by distillation in an extracting solvent- separating zone (b), (3) esterifying the resulting methacrylic acid solution with a low-boiling alcohol in the presence of an acid catalyst in an esterification zone (c), while removing water by azeotropic distillation, (4) separating the solution discharged from the bottom of the esterification zone (c) into a product containing layer and an aqueous catalyst containing layer in a decanting zone (d), (5) recycling the aqueous layer to the esterification zone (c) after separating by-produced polymerization products therefrom, (6) joining the product layer with the distillate from step (3), (7) recovering unreacted alcohol from the resulting mixture by extraction in an extraction zone (e), (8) recycling the alcohol to the esterification zone (c), (9) distilling low boiling materials from a raffinate phase leaving the top of the extraction zones (e), (10) separating the raffinate phase into a high purity methacrylic acid ester product and an unreacted methacrylic acid solution, and (11) recycling this solution to zone (a) in step (1) or to step (2).
Patent GB-2025157-A (GB)
Title: Heat-recoverable articles
IPC: H01R4/72
Filed: 1979-03-09
Abstract: The invention relates to an article suitable for making an electrical connection between two electrical conductors, for example an earth conductor and the outer conductor of a coaxial cable. The article comprises a heat-recoverable sleeve (1) and a quantity of solder (2) which is positioned eccentrically within the sleeve and is held by and/or on the sleeve. The sleeve also comprises or has guide means 6 capable of locating a portion of the earth conductor in proximity to the quantity of solder. On shrinking of the sleeve and fusing of the solder, an electrical connection can be made between an earth conductor received in the guide means and the outer conductor of a coaxial cable received in the sleeve. <IMAGE>
Patent GB-2019102-A (GB)
Title: High-frequency circuit device
IPC: H03J1/00
Filed: 1979-03-13
Abstract: The present invention relates to a high-frequency circuit device provided with a shield plate structure. A printed circuit board (12) and a shield plate structure (13) are accommodated within a casing (11) of such a device. The shield plate structure (13) is formed of a single plate which is punched into a specific shape and bent to form the shield plate structure, which shields the various circuit sections (15a, 15b, etc). The shield plate has leaf-like parts (18) which are connected to a main part (19). <IMAGE>
Patent GB-2019528-A (GB)
Title: Shaft Couplings
IPC: B21B35/14
Filed: 1979-04-19
Abstract: To permit a drive spindle having a universal joint 4, 5 to be connected to an end 2 of a rolling mill roll 1, a two part coupling 8, 22 is provided. When the two parts are fitted together the stub(s) 20 on part 8 fits into an opening 24 on part 22, cylindrical portions 16, 28 fit on to each other and ribs 30, 32 come into mesh to provide a drive connection. <IMAGE>
Patent GB-2026232-A (GB)
Title: Piezoelectric device
IPC: H03H9/09
Filed: 1979-06-01
Abstract: A piezoelectric device such as a resonator or filter comprises a piezoelectric substrate (1) having first and second opposite surfaces, each having at least one electrode layer (4,5) formed thereon, and, for each electrode layer, a respective electroconductive terminal member (2,3), and an electroconductive elastic sheet (20;21) sandwiched between at least one of the terminal members and the corresponding electrode layer to which that one of the terminal members is to be electrically connected. The elastic sheet may be conductive only in the direction of its thickness, whereby a plurality of electrode segments on one surface of the substrate may be connected in isolation to corresponding terminals through a single common sheet. The terminals may be metal members, which may have contact protuberances, or may be insulating members with electrode layers. <IMAGE>
Patent GB-2050131-A (GB)
Title: Clamping tools to agricultural implements
IPC: A01B23/02
Filed: 1979-06-13
Abstract: An agricultural implement comprising a frame member 11 and a tool, such as a tine 4, secured to it by a clamp 1, the clamp having a slot 2 through which the tool is inserted and which has one or both lateral side edges 12 (Fig. 2, not shown) tapered so that they engage the adjacent lateral side edges of the tool with a wedging action as the clamp and tool are tightened against opposite sides of the frame member. Preferably, the clamp is L- shaped and has one limb 3 with the slot 2 to receive the end of the tool so that it is parallel to the other limb 6 with the frame member clamped therebetween, and the lateral side edges (12) of the slot converge towards the free end of said one limb. Preferably, a bolt 8 with a tapered head 9 engages the free ends of the clamp and tool to produce the clamping force. <IMAGE>
Patent GB-2044631-A (GB)
Title: Conical refiners
IPC: D21D1/24
Filed: 1979-07-24
Abstract: A conical rotor or stator is made by welding blades to a body, the blades, body and welds being of corrosive resistant material, e.g. stainless steel, upon wearing the blades may be removed by machining and new blades re-welded onto the body. <IMAGE>
Patent GB-2060244-A (GB)
Title: High Pressure Sodium Vapour Lamp
IPC: H01J61/54
Filed: 1979-10-09
Abstract: In a high pressure sodium vapor discharge lamp having a discharge tube which contains xenon gas at a high pressure of, e.g. over 150 torr, one of its discharge electrodes 6 has a projection conductor 9 which is disposed extending therefrom towards an inside surface of the wall 1 of the discharge tube. There is a predetermined gap, e.g. 0.3 mm to 0.7 mm, between the projection 9 and wall 1. Moreover, a starting aid conductor 8 is disposed lengthwise on the outside surface of the side wall, and may be connected to the other discharge electrode 5. <IMAGE>
Patent GB-2029359-A (GB)
Title: Winch
IPC: B66D1/08
Filed: 1978-09-07
Abstract: A winch has a hollow winch drum 10 rotatably suspended between a pair of arms depending from a wheeled carriage via hollow stub shafts 14 and bearings 15. A radial piston hydraulic motor 16 and a gearbox 17 are mounted in the drum 10. The motor 16 has a non-rotary casing 18 whilst the gearbox 17 has a rotary casing 19 which is secured via flanges 25 and 26 and bolts to the drum 10. Hydraulic lines 24 to and from the motor 16 are led through one of the hollow stub shafts. The wheeled carriage is fitted with an hydraulic motor so as to be self-propelled and is intended for use on a raised rail. <IMAGE>
Patent GB-2043746-A (GB)
Title: Pick box
IPC: E21C35/19
Filed: 1979-12-11
Abstract: One embodiment of the invention provides a pick box 1 fabricated from a number of sections welded together, at least some of the sections being subject to hard surfacing 11, 12 prior to fabrication. In another embodiment of the invention (not shown), a pick box is cast in a single piece and is provided with separate hard surfaced inner sections. In both embodiments of the invention the hard wearing surface or surfaces 11, 12 in use engage a shank 7 of an inserted cutter pick 8. <IMAGE>
Patent GB-2036908-A (GB)
Title: Nut
IPC: F16B41/00
Filed: 1979-12-12
Abstract: A nut (14) can be tightened to a substantially uniform torque by means of an end portion (18) which breaks off when a prescribed torque has been reached. A circumferential groove (17) is provided between the end portion (18) a clamping part (16) of the nut (14) and these two parts (18) and (16) are coloured in different colours for example red and yellow respectively. Thus when the red part (18) is present the observer will know that the nut has not been tightened to a sufficient torque. The clamping part (16) is covered by a sleeve (19) of vet another colour, for example, blue or green. Thus when the sleeve is present the observer will know that the nut is still correctly tightened; but when the sleeve 19 has been removed he will be warned that the nut may have been subsequently loosened or over-tightened. <IMAGE>
Patent GB-2067259-A (GB)
Title: Gas lance cleaning device
IPC: C21C5/46
Filed: 1980-01-15
Abstract: Skull removal apparatus for an oxygen steelmaking lance 8, comprising a pair of opposed replaceable scraper blades 17 arranged above the lance entry branch 6 of a converter, and mounted on arms 14 which are pivotally retractable by means of air cylinders 24. The blades have cutaway positions so that they fit either side of the lance and may be mounted on a "floating" support 16 so as to be self-aligning with the lance. <IMAGE>
Patent GB-2050503-A (GB)
Title: Noise Mufflers for Valves in Compressed Air Equipment
IPC: F16L55/027
Filed: 1980-03-13
Abstract: A housing containing sound- deadening material 3 bounding an expansion region 5 has an inlet 2 at one end and an outlet at the other end and at least one passage 4 extends longitudinally through the sound- deadening material to connect the expansion region 5 to the outlet. The end of the, or each, passage 4 is offset with respect to the, or each, inlet aperture. <IMAGE>
Patent GB-2073931-A (GB)
Title: Bell assembly
IPC: G10K1/064
Filed: 1980-04-09
Abstract: In a bell asembly, a rotatable knob 52 is connected to one end of a torsion spring 46 whose other end is connected to the armature of the bell mechanism. The one end of the spring engages with a slot formed in the top of a bolt 50 which is a tight frictional fit in the centre of the knob. To prevent inadvertent rotation of the knob when the armature moves, a spring washer 54 is fixed on the knob so that the spring washer and the knob are urged against the base 10 of the bell assembly and thereby frictional forces prevent inadvertent rotation of the knob. On assembly, the bolt is adjusted to twist the torsion spring to give the required sound level and, in use, rotation of the knob varies the sound level by twisting the torsion spring. Stops are provided on the spring washer to restrict the range of rotation of the knob. <IMAGE>
Patent GB-2048842-A (GB)
Title: Process for the Preparation of Inorganic Peroxides
IPC: C01B15/043
Filed: 1980-04-29
Abstract: An alkali metal or alkaline earth metal peroxide, for example calcium, magnesium or lithium peroxide, is produced by reaction between a concentrated suspension of the corresponding oxide or hydroxide and hydrogen peroxide, preferably maintaining the reaction mixture with stirring until the reaction has gone to completion, and direct spray drying of the peroxide suspension formed, if desired after partial dewatering. The product occurs directly as free flowing granules of a narrow and uniform particle size, and is chemically homogeneous.
Patent GB-2077611-A (GB)
Title: Partially flexible fluid filter assembly
IPC: A61M5/165
Filed: 1980-06-13
Abstract: A filter assembly for use in the intravenous administration of fluids to a patient includes a filter medium 52 therewith for filtering of fluids passing through the assembly. Means in the assembly allows the fluid to pass therethrough. The assembly has an outside enclosure constructed of both rigid 42 and flexible 51 portions, with the flexible portion 51 being compressible toward the rigid portion 42 to thereby purge gas out of said assembly. The filter medium 52 may comprise a membrane 60 supported on fibrous material 62. <IMAGE>
Patent GB-2055584-A (GB)
Title: Ocular phosthetic or the like
IPC: A61F2/14
Filed: 1980-07-22
Abstract: The invention contemplates an artificial eye which in its preferred form is self-contained and embodies a simulated iris, with the appearance of a pupil which will dilate in response to a photoelectrically detected reduction in environmental light. The eye comprises an eye simulating body having a transparent covering of a dark circular pupil simulating area within a surrounding annular iris simulating area.The size of the circular area is such as to simulate a pupil in a bright light environment. An electro-optically sensitive annulus is interposed between said iris simulating area and said transparent covering and extends radially outward from the dark area to an extent which corresponds with the outer diameter of a pupil that has been dilated due to a light environment of intensity less than that of a bright light environment. An electric circuit is also provided and has excitation connections to the electro-optically sensitive annulus, this circuit including photoelectric means having a light sensitive element exposed to environmental light.
Patent GB-2068305-A (GB)
Title: Hand trolleys
IPC: B62B1/26
Filed: 1980-08-06
Abstract: A hand-trolley for transporting cylinders is able to be loaded (e.g. with a gas cylinder) with rollers 15 in a horizontal plane, and used to carry the cylinder upright with the rollers 15 in a vertical plane. The hand-trolley has a frame 10 of two generally U-shaped pieces of metal. It has a handle 13 and a load support member 14, the latter including the roller 15. When the trolley is to be loaded it may rest on feet 12 and a pair of wheels 11(a). The trolley may be stood upright on wheels 11(b) with the foot 20 of a member 17 resting on the ground. The foot 20 also helps to support the gas cylinder in an upright position. A gas cylinder may be secured on the trolley by a chain fastened to clips 19. <IMAGE>
Patent GB-2056242-A (GB)
Title: Crop threshing, separating and cleaning apparatus
IPC: A01F12/44
Filed: 1980-08-07
Abstract: A crop threshing, separating and cleaning mechanism comprising a threshing rotor (1) and open grate concave (4) that co-operate to thresh crop material therebetween, a grain separating mechanism (5) that receives threshed crop material that passes through between the threshing rotor and concave grate, a conveyor mechanism (9, 7) that collects grain falling through the concave grate (4), a grain cleaning mechanism (18) to which the conveyor (9) delivers said grain independently of said threshed crop material, and a grain pre-cleaning mechanism (10) that directs a blast of air through falling grain as it passes via said conveyor mechanism (9, 7) to the cleaning device (8). The conveyor mechanism preferably comprises a continuous band-type conveyor (9) that elevates grain before dropping it to a second conveyor (7), a pre- cleaning fan (10) being located below the conveyor (9) to blow air through the grain as it falls onto the second conveyor (7). Air from the pre- cleaning fan (10) is preferably also directed to pre-clean grain in the grain separating mechanism (5) and/or as it falls in passing to the grain cleaning mechanism (8). <IMAGE>
Patent GB-2061278-A (GB)
Title: Total Synthesis of A-nor and A- dinor Steroids
IPC: C07D317/30
Filed: 1980-08-14
Abstract: Compounds of formula   <IMAGE> (wherein n is 0 or 1, R is Me or Et, R1 is H, A or COA where A is alkyl, cycloalkyl or aryl, and R2 is H or Me) are prepared from sulphones of formula   <IMAGE> by a multistep synthesis which commences by reacting the sulphone with methyl 6,6-ethylenedioxy-3- oxoheptanoate or methyl 5,5- ethylenedioxy-3-oxohexanoate. When R2=H and n=1 the intermediate from which the tetracyclic ring system is generated is of formula   <IMAGE>
Patent GB-2059919-A (GB)
Title: Fluid metering device
IPC: G01F11/04
Filed: 1980-09-03
Abstract: A metering device for biological fluids comprises a dual compartment metering chamber 10 which emits pulses of fluid of precisely equal volume from the two compartments 13,15 which are defined in chamber 10 by a pressure transmitting member 16 which, as shown in Figure 1, is a diaphragm. The compartments 13,15 are each connected to an inlet tube and an outlet tube, 18,20 and 22,24. The tubes are provided with valve means operable to alternately close tubes 18,24 and tubes 20,22 so that the compartments are alternately placed in communication with the fluid source and with the receiving body. In alternative embodiments, the compartments are defined within a tubular chamber by a tubular pressure transmitting member or by an axially movable radially extending disc. The volume of fluid emitted by the chamber may be varied. <IMAGE>