baber/WOPTO huggingface dataset:
Patent GB-1364067-A (GB)
Title: Separation of liquid and vaporous phases
IPC: B01D19/00
Filed: 1971-08-16
Abstract: 1364067 Centrifugal separator; gas-liquid contact apparatus METAWA NV 16 Aug 1971 [18 Aug 1970] 38336/71 Headings B1R and B2P In a distillation, absorption or other contacting apparatus in which a mixture of liquid and vapour or gas flows from an upper contacting tray 11 through a downcomer tube 1 to a lower contacting tray, the tube 1 is provided with substantially vertical baffles 7 and a weir 14 so that as the mixture flows from the tray 11 across the weir 14 into the tube 1 (arrow a), it is forced by the baffles to rotate about the centre line of the tube whereby a vortex is formed carrying the vapour or gas to be separated upwardly (arrow c) from the downwardly flowing liquid (arrow b). The tube 1 has a cylindribal portion 3 which is adjustably secured to the baffles 7 or tray 11 so that the height of weir 14 above the tray can be varied. The baffles 7 are provided with bent edges 8 by means of which the baffles are connected to each other to define a vortex finder 9, through which the separated gas or vapour is discharged. The baffles may be curved or flat and are provided at their bottom end with vanes 10. They extend beyond the cylindrical portion 3 of the tube 1 and are secured to the tray 11 by means of a lip 12. A pan 2 is spacedly secured to the bottom of the conical portion of the tube 1 by brackets 18 to provide a gas or vapour trap.
Patent GB-1125912-A (GB)
Title: Dynamic shaft sealing element
IPC: F16J15/20
Filed: 1965-09-08
Abstract: 1,125,912. Shaft seals. ROBBINS AVIATION Inc. 8 Sept., 1965 [21 Sept., 1964], No. 38444/65. Heading F2B. A shaft seal 55 of flexible plastics material, such as P.T.F.E., is formed by end collars 56 joined by a corrugated wall 60, the side walls of the corrugations being inclined towards one of the collars. As shown, the seal is employed on a stem 16 of a valve and is compressed into a cavity 48a provided between a shoulder 50 of a sleeve 40 and a retaining ring 30. The action of fluid pressure on the right-hand end of the seal causes further compression of the seal and a wedging action of the corrugations against the surfaces of the shaft 16 and sleeve 40. A sealing bush 66 of P.T.F.E. is also arranged on the valve stem 16, it being urged into contact with the stem by a spring 84 acting through a conical pressure-ring 78. Radial expansion of the shaft and bush is taken up by the spring.
Patent GB-895523-A (GB)
Title: Back gauge assembly for shear-machines and the like
IPC: B23D33/10
Filed: 1959-11-13
Abstract: 895,523. Shearing. PACIFIC INDUSTRIAL MANUFACTURING CO. Nov. 13, 1959 [June 15, 1959], No. 38531/59. Class 83 (4). A shearing &c. machine comprises a fixed blade &c. 3, a ram 19 carrying a blade &c. 7, a back-gauge 33 adjustable in a direction normal to its length and means 89 for withdrawing the gauge away from blade 3 prior to a shearing &c. operation. The ram 19 supports spring- returned, fluid-pressure operated plungers 17 for pressing the work against a table 11 and the back-gauge against which the work engages. Brackets 39 support the gauge 33 from a plate 37 which has rails 51, Fig. 4, slidable on the flanges 43 of lead-screw housings 41 during adjustment of the gauge by a lead screw 47 at each end of plate 37. A nut 53 on each lead screw has a pin 55 in a hole in the plate 37, and rotation of the lead screws, which are coupled by a lateral shaft and bevel hears (Fig. 3, not shown) is by a hand wheel or hydraulic &c. power means. The housings 41 at one end are pivoted on eye-bolts 79 beneath a stiffener 21 for the ram 19, and at the other are connected to fluid-pressure jacks 89 which withdraw the gauge to the position depicted in broken lines before the shearing operation. The hold-down plungers 17 and jacks 89 are connected to the same supply line (Fig. 5, not shown), the plungers 17 holding the work before the increase in fluid-pressure is sufficient for the jacks to lift the gauge assembly away from the work. The gauge assembly may be retained in the raised position by closing a valve in the supply line to the jacks Return movements of the gauge assembly are by gravity, the jack pistons engaging stops at the bottoms of their cylinders. Specification 771,014 is referred to.
Patent GB-865551-A (GB)
Title: Improvements relating to free-piston engines
Inventor: RUBBRA ARTHUR ALEXANDER
IPC: F02B71/06
Filed: 1958-11-29
Abstract: 865,551. Free-piston engines. ROLLSROYCE Ltd. Oct. 7, 1959 [Nov. 29, 1958], No. 38562/58. Classes 7(1) and 7(2). In a free-piston engine the or each cylinder wall is cooled by a flow of gas and the heated gas resulting from the cooling is introduced into the gaseous output of the engine. As shown scavenging air is taken in through one-way valves 19, 20 and then compressed and passed through further one-way valves 21, 22 into the scavenge air chamber 23. Small orifices 28 allow a proportion of the scavenging air to be tapped off and to pass into the space between the casing 27 and the cylinder wall 10. This air passes out through further orifices 29 into the exhaust ports 25. The exhaust gases drive a turbine. If desired the air could be led from the scavenge air chamber 23 via a heat exchanger into the space within the casing 27.
Patent GB-1519212-A (GB)
Title: Device for flushing water closets with different quantities of water
IPC: E03D1/14
Filed: 1975-09-19
Abstract: 1519212 Valve-discharge flushing cistern G H PETERSSON 19 Sept 1975 38569/75 Heading E1C A valve-discharge flushing cistern which can deliver a full or partial flush comprises a tubular valve member 5 which engages on the annular valve seat 6 surrounding the outlet 2 and has a valve 7 which engages on: its upper valve seat 8. The upper valve 7 which may incorporate a float is operated by the handle 10 and rod (12), water is then discharged down to the level of the upper valve seat 8. For a full flush the handle 9 is raised. Lifting the tubular member 5 from the valve 6, the closing of the valve arrangement 5 is controlled by the float 14 (which may also operate the water inlet valve) and the elements 23. 24.
Patent GB-978994-A (GB)
Title: Improved reclining chair and leg-rests control arrangements
IPC: A47C1/0355
Filed: 1963-10-01
Abstract: 978,994. Reclining chairs. F. F. SCHIEPHACKE. Oct. 1, 1963, No. 38605/63. Heading A4J. A reclining chair comprises a body support 20 including a back-rest 22 and seat 24 movably mounted on a support 12 and a leg-rest 30 which is moved into legsupporting position when the chair occupant leans against the back-rest 22. A variable velocity leg-rest control arrangement 36 is connected to the back-rest 22 by a link 60 and to the leg-rest 30 by a link 54. The control arrangement 36 includes a control member 40 pivotally mounted on the support 12 by links 42, 48. The link 54 is connected to the control member 40 by a control pivot 56 so positioned relatively to the pivotal connections 46, 52 of the links 42, 48 with the control member 40 that the first phase of the reclining movement of the back-rest 22 brings about a rapid movement of the pivotal connection 56, Fig. 5, which produces a rapid movement of the leg-rest 30. The second phase of the reclining movement causes a less rapid movement of the control pivot 56 and is effective to maintain the leg-rest 30 in a leg-supporting position. A seat control link 66 is pivoted to the seat 24 and link 42 and imparts an inclination to the seat during the reclining movement. In a modification shown in Fig. 14 the reclining movement is effective via the seat 224 to initiate the operation of the leg-rest control arrangement 236 via a connecting link 254. A flexible coupling is formed by a pin and slot connection 260, 262 between a double-arm lever 248 and the seat 224. In a further modification shown in Fig. 22 the leg-rest arrangement 436 is actuated by the seat 424 which is pivotally connected at 497 to an extension 495 of the control member 440. The legrest 430 is mounted for movement into successive elevated leg supporting positions by a linkage 434.
Patent GB-929241-A (GB)
Title: Nitro-substituted diisocyanate compounds
Inventor: KLAGER KARL
IPC: C08G18/78
Filed: 1960-11-10
Abstract: Nitrated polyurethanes suitable as propellants are prepared by reacting hexanitro diisocyanates of the formula:- <FORM:0929241/IV(a)/1> wherein A and A1 are C1-3 alkylene radicals, with glycols such as 2,2-dinitro-1,3-propanediol, 2,2,4,4-tetranitro-1,5-pentanediol, or 2-nitro-2-methyl-1,3-propanediol.ALSO:The invention comprises hexanitro diisocyanates of the formula:-  <FORM:0929241/IV(a)/1> wherein A and A1 are C1-3 alkylene radicals.  Th compounds are prepared by heating a diacid halide of the formula:- <FORM:0929241/IV(a)/2> (where X represents halogen, e.g. chlorine or bromine) with an alkali or alkaline earth metal halide to form a diacid azide of the formula:-  <FORM:0929241/IV(a)/3> which is then heated to effect rearrangement to the required diisocyanate.  Diacid halides of the above formula are obtained by treating the corresponding dicarboxylic acids with PCl3, PCl5 or PBr5.
Patent GB-1435259-A (GB)
Title: Diodes and their protection
IPC: C07C209/00
Filed: 1974-09-04
Abstract: 1435259 Electroluminescence BOFORS AB 4 Sept 1974 [4 Sept 1973] 38741/74 Heading C4S [Also in Division H1] In order to protect a light-emitting diode from precipitation of condensed water vapour when the diode is cooled, e.g. by a liquid coolant 8, a sleeve 9 of good thermal conductivity is applied to the diode casing with good thermal contact, e.g. by force-fitting or chemical bonding. The sleeve 9 acts as a cold trap on which water preferentially condenses. In the embodiment the casing (4) (also Fig. 1, not shown) is of steel with a glass end window, the sleeve 9 is of copper and the diode is mounted in a cooled holder 6 having a glass outer window 7. The diode may be a laser or other L.E.D.
Patent GB-942701-A (GB)
Title: Improvements in or relating to blinds
IPC: E06B9/308
Filed: 1961-10-31
Abstract: 942,701. Venetian blinds. E. GOLLNER, and E. LEIXNER, [trading as HEINRICH GOLLNER & CO.]. Oct. 31, 1961 [Oct. 31, 1960], No. 38947/61. Heading E1J. [Also in Division F2] A venetian blind comprises at least two pull bands 2 wound on to unflanged cylindrical rollers 7 fixed to a hexagonal shaft 8 between transverse partitions 14, 15 in the blind box 6. The slot control strips 3, 4 are bifurcated at the top, and each part passes over a roller 23 or 24 which is forced against a hub 29 on the shaft 8 by a spring 31. Each roller 23, 24 has an overrun stop 34, 35 associated with it, and there is also a control for the blind height, comprising a nut 18 which is prevented from rotating, and hence travels along a threaded portion of the rotating shaft 8 until stopped by a locknut 20.
Patent GB-864081-A (GB)
Title: A combined drying and feeding apparatus for pulverulent raw material
IPC: F26B3/092
Filed: 1958-12-03
Abstract: 864,081. Drying apparatus. TEIKOKU RAYON CO. Ltd. Dec. 3, 1958 [Dec. 5, 1957], No. 38984/58. Class 34(2) Pulverulent raw material is fed to a reaction chamber (not shown) through a duct 5 by a combined drying and feeding apparatus comprising a hopper 9 formed with a material inlet 2 and a gas outlet 8, surrounded by a heating jacket 3 and having a rotatable stirrer 6. The hopper floor is a perforated plate 7 through which the material passes to a screw conveyer 4 for transport to the duct 5 whilst below the plate is a chamber 11 having a heating jacket 3 and an inlet 1 through which dry gas is supplied for subsequent passage up through the chamber, plate and hopper to the outlet 8.
Patent GB-1481992-A (GB)
Title: Method of producing an article impregnated with thermosetting resin
IPC: B32B5/28
Filed: 1974-09-06
Abstract: 1481992 Thermosetting resin impregnated foam laminates SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 6 Sept 1974 39021/74 Addition to 1266097 Heading B5N In the method of Specification No. 1,266,097, wherein a resin-impregnated article is produced by impregnating an open-cell foam sheet with curable thermosetting resin, applying a fibrous reinforcement layer to one or both sides of the sheet, compressing the assembly so as to expel resin from the sheet so as to impregnate the fibrous layer(s) throughout its/their thickness, and allowing the resin in the assembly to cure whilst maintaining the compression, the fibrous reinforcement is a stretchable fabric with non-straight yarns, e.g. a knitted fabric. The article may be made by compressing between shaped mould plates.
Patent GB-871814-A (GB)
Title: Improvements in and relating to a washing process and compositions therefor
Inventor: RITCHIE ALEXANDER
IPC: C11D3/39
Filed: 1958-12-03
Abstract: Textiles, for example of cotton, are washed in an aqueous bath comprising (a) a detergent selected from the group consisting of soaps and synthetic nonionic and anionic detergents, particularly sodium lauryl sulphate and dodecylbenzene sulphonate, (b) an alkali metal, preferably potassium, permonosulphate, and (c) an alkali metal, preferably sodium, chloride, the alkalinity of the solution being adjusted to pH 7,5-9,5.  The molecular ratio of (c) to (b) is generally 10 : 1 to 60 : 1 and the amount of (b) in solution should be such as to provide 10-100 p.p.m. available oxygen.  The bath may also contain sodium tripoly- and/or pyrophosphate, salts of nitrilotriacetic and/or ethylene-diamine tetracetic acid (generally in amounts so as to provide in the bath a concentration of not more than 50 p.p.m. and preferably 2,5-10 p.p.m.), sodium sulphate, sodium carboxymethylcellulose, optical bleach and anti-tarnish agents, perfume and colour.ALSO:A detergent composition comprises (a) one or more detergents selected from the group consisting of soaps, and synthetic nonionic and anionic detergents, particularly sodium lauryl sulphate or dodecylbenzene sulphonate and suitably in amounts of 10-30% by weight, (b) an alkali metal, preferably potassium, permonosulphate, and (c) an alkali metal, preferably sodium, chloride, the alkalinity of the composition being such as to provide pH 7.5-9.5 at 50 DEG C. at a concentration in water of 25 p.p.m.; the molecular ratio of (c) to (b) is generally 10:1 to 60:1, and the amount of (b) should be such as to be equivalent to 0.2-2% available oxygen based on the whole composition.  The composition may also contain sodium tripoly- and/or pyro-phosphate (usually 5-30% by weight), salts of nitrilotriacetic and/or ethylenediamine tetracetic acid (generally in amounts up to 1%, preferably 0.05-0.2%, by weight), sodium sulphate, sodium carboxymethylcellulose, optical bleach and anti-tarnish agents, perfume and colour.  The compositions may be suitably prepared by making a slurry of, and then spray-drying, all ingredients except the permonosulphate, which is mixed in subsequently.
Patent GB-1396338-A (GB)
Title: Thread trimming device for sewing machines
IPC: D05B65/00
Filed: 1972-08-23
Abstract: 1396338 Presser foot. Thread cutting SINGER CO 23 Aug 1972 39220/72 Heading D1G The needle thread 24 and underthread 28 are severed by first drawing the needle thread to one side of a hole 44 in a presser foot attachment 10, holding the thread in position, making another stitch and pulling the needle thread further away to draw the underthread through the hole and cutting both threads. The attachment 10 comprises a shank 12 and a presser foot sole 34 on which is slidably mounted a cutting blade 52 presenting an anvil 68 and urged to one side by a spring 70. The shank 12 rotatably mounts a shaft having at one end a knurled drum 130 and at the other a member 80 which supports a striker 84 and the thread drawing pin 82. The member 80 is urged anticlockwise by a spring (94, Fig 3, not shown) to a position where pin 82 is to the right of the needle. When severance is required the operator rotates the drum to move the pin across 'the hole beneath the raised needle to hold the needle thread during the subsequent stitch, a latch (144) within the drum 130 holding the drum in position against the action of the spring (94). Subsequent clockwise rotation of the drum by the operator pulls the bobbin thread through the hole and striker 84 abuts the anvil 68 to slide the blade 52 and sever the thread. The latch (144) is released by the drum motion and the device returned by its spring (94) to the position of Fig 1.
Patent GB-1284610-A (GB)
Title: Improvements in or relating to sailing boats
Inventor: PHILIBERT GILLES
IPC: B63B41/00
Filed: 1969-08-06
Abstract: 1284610 Keels; centre-boards G PHILIBERT 6 Aug 1969 [14 Aug 1968] 39315/69 Headings B7S and B7V [Also in Division G1] A keel or centre-board has a part which can be set to counteract drift. The lower blade 1 of a drop keel, Fig. 1, is movable by arm 15 and shaft 10 to apply this correction and, as illustrated in Figs. 4 and 5 (not shown), a pulley system can be provided to permit remote control of the arm 15. Blade 1 may be of air-foil cross-section (Fig. 6, not shown) and hollow. Figs. 7, 13 and 14 (not shown) illustrate angularly adjustable keel plates located inside ballasting frames rigid with the hull, and in the modification of Fig. 14, additional adjusting flaps (58, 61) are provided.
Patent GB-1214947-A (GB)
Title: Fluid pressure control valve
Inventor: WILSON ALEXANDER JOHN
IPC: F16B37/00
Filed: 1968-08-17
Abstract: 1,214,947. Valves. GIRLING Ltd. 21 July, 1969 [17 Aug., 1968], No. 39449/68. Addition to 1,042,773. Heading F2V. The valve of the parent Specification is modified by the incorporation of means to control the rate of pressure increase on the side of the second control member 17 which is subjected to a fluid pressure different from that in the first space or chamber 19. The means consists of a plate 27 having at least one orifice 28. The second valve member consists of a plate 13 urged by a spring (not shown) against an annular seat 14 and connected to atmosphere through a central port 11 and a series of ports 12 angularly spaced on pitch circles of constant diameter.
Patent GB-1390463-A (GB)
Title: Process for the preparation of polybasic unsaturated carboxylic acid esters and carboxylic acids
IPC: C07C51/00
Filed: 1972-08-24
Abstract: 1390463 Polybasic unsaturated carboxylic acids and esters HENKEL & CIE GmbH 24 Aug 1972 [25 Aug 1971] 39463/72 Heading C2C Polybasic and polyunsaturated carboxylic acids or esters are prepared by reacting a conjugated diolefine with a carboxylic acid ester in which R 1  and R 2  represent (CH 2 ) n -COOR<SP>11</SP>, in which n = 0 or 1, or R<SP>1</SP> represents a hydrogen atom and R<SP>1</SP> and R<SP>11</SP> represent straight or branched-chain alkyl groups with 1 to 10 carbon atoms, in a ratio of at least 2 mol. of diolefine to 1 mol. of ester in the presence of an organometal complex of non-valent nickel and an electron donor, followed by isolation of the ester and saponification to acid. Isoprene, 1,3-pentadiene or 1,3-butadiene may be the conjugated di-olefine with an α- substituted acrylic ester, and the electron donor may be a phosphorous acid triamide, heterocyclic N-base, aliphatic and aromatic amine, nitrile and triaryl of phosphorus, arsenic and antimony. Pyridine, morpholine, triphenyl stilbene, triphenyl arsine and triphenyl phosphine are used as electron donors in examples. The reaction may be in an inert solvent, and examples describe the reaction of dimethyl itaconate, dimeric acrylate and a dimer fumarateacrylate with butadiene to give C 13  and C 14  diesters and a C 15  triester respectively.
Patent GB-1194496-A (GB)
Title: Flexible Tube Coupling
Inventor: CHAKROFF RICHARD O
IPC: F16L27/113
Filed: 1968-08-19
Abstract: 1,194,496. Pipe couplings. R. O. CHAKROFF. 19 Aug., 1968, No. 39497/68. Heading F2G. In a coupling for connecting and sealing a pair of fluid pressure conducting tubes 25, 26 arranged in end-to-end relationship and having external beads 27, 29 adjacent the ends thereof and external surfaces of substantially uniform diameter on the distal sides of the beads, there are means for holding the tubes to limit longitudinal displacement thereof comprising a rigid cylindrical sleeve 16 surrounding the beaded end portions of the tubes and formed with internal, circumferential grooves 21, 22, and resilient split rings 23, 24 surrounding the distal sides of the tubes, the rings in the relaxed condition thereof resiliently tending to adjust to a position of smallest possible diameter and thus tending to hug the associated tube tightly but being expanded and partially positioned in the grooves when the tubes are moved apart to the limit of movement thereof and when then contacted by the side of the external beads of the tubes opposite to the ends of the tubes. There is also means for sealing the ends of the tubes against leakage comprising a cylindrical coupling member 12 having an annular internal flange 14 and an external screw-thread 15 and a nut 13 forming a complementary coupling member and having an internal screw-thread 17 and an extension 18 formed with an annular internal flange 19, metallic washers 32, 35 between the flanges 14, 19 and the adjacent ends 33, 36 of the sleeve 16; and resilient 0-rings 34, 37 positioned between the washers and the split rings and engaging the tubes and sleeve. The washers may be split and resilient and include, as may the split rings, springs positioned in grooves therein. The members 12, 13 may be formed with openings for visual inspection of the interior of the coupling and locked together by a wire passed through the openings. In modifications, (a) the grooves 21, 22 each have a tapered side and the rings 23, 24 are each formed with a skirt which is forced into engagement with the tapered side of a groove; (b) the split rings 23, 24 are replaced by integral, annular flanges of a split sleeve formed in three sections and held together by wire springs inserted and secured in grooves in the flanges, the sleeve when expanded by outward axial movement of the tubes being locked in an internal circumferential groove of the coupling member 12; and (c) the sleeve is screw-threaded at each end for the reception of a pair of nuts and the split rings, which have a substantially triangular crosssection, may comprise a number of arcuate segments held together by a circular spring.
Patent GB-1445255-A (GB)
Title: Fixing element for abrasion resistant plates for conveyer  chutes
IPC: B65G11/16
Filed: 1974-09-10
Abstract: 1445255 Bolts SCHMELZBASALTWERK KALENBORN DR ING MAURITZ KG 10 Sept 1974 [16 Oct 1973] 39516/74 Heading F2H [Also in Division B8] Abrasion-resistant plates 1-4 of a conveyer, particularly a spiral gravity conveyer shoot casing, are secured to a support structure 6 by screws 5 having heads 10 which are rectangular in plan, the heads being countersunk into the plates to present a flush surface therewith. The head 10 may be of a steel of greater hardness than the shank, the head and shank being welded together. Alternatively the screw may be of partially tempered chilled cast steel, or the head may be faced with a hard surface of deposited weld metal, or an abrasion-resistant material glued on with an epoxy resin.