baber/WOPTO huggingface dataset:
Patent GB-690450-A (GB)
Title: Improvements in or relating to the evaporation of liquids
Inventor: ARNAUD JEAN CLAUDE
IPC: B01D1/22
Filed: 1947-12-24
Abstract: <PICT:0690450/III/1> In an evaporator comprising cylindrical chambers 3 and 3a each having end-walls heated by hot fluid circulating in hollow-parts 4, and each being provided with rapidly rotating paddles 2 which force the liquid-being-evaporated across the heated end-walls to the peripheries of the chambers, from whence it is conveyed by pipes 7 and 7a to free spaces 5 surrounding the axle of the paddles, these free spaces are sub-divided into intercommunicating parts by annular diaphragms 13, 14, which regulate the flow of liquid through the evaporator.  In the Fig., the liquid is introduced into the evaporator through inlet 6, and the diaphragms are disposed downstream of the discharge-ends 10, 10a of the pipes 7, 7a, but they may alternatively be disposed upstream thereof. p  In an example, the chambers have an outer diameter of 2 feet, the free spaces 5 have an outer diameter of 11 inches, and the heating surface is about 1 square yard.  The hollow parts 4 are supplied with steam at 30 p.s.i.g.  The paddles are driven at 200 r.p.m. The evaporator can deliver 22 gallons per hour of very concentrated black liquor.
Patent GB-229309-A (GB)
Title: A process for the generating of steam
IPC: F22B3/04
Filed: 1925-02-11
Abstract: 229,309. Marguerre, F. Feb. 11, 1924, [Convention date]. Generating by reduction of pressure.-In steam generating apparatus, wherein the supply of heat and evaporation proceed in separate elements, as described in Specification 15646/00, the whole available energy released by the expansion of the mixture of steam and water is utilized. The water is forced by a pump a, Fig. 1, through a heating element e and passes to a machine b, such as a Pelton wheel, in which the reduction of pressure occurs. The water then passes through a conduit f<1> to the pump, and the working steam is conveyed through a pipe f. In a modification, the pump a, Fig. 2, is driven by a steam engine b. the exhaust from which preheats the feedwater in a vessel c; the engine is fed with steam from the evaporator d. In another modification, two or more evaporators are connected in series and the engine is located between two evaporators ; or the water under pressure may flow through an engine to an evaporator. Reference has been directed by the Comptroller to Specification 12805/00.
Patent GB-739932-A (GB)
Title: Improvements in or relating to furniture
IPC: A47C3/36
Filed: 1954-02-09
Abstract: 739,932. Adjustable tables, chairs, &c. BALLY, H. J. Feb. 9, 1954, No. 3856/54. Classes 52 (2) and 52 (3). A table, chair, &c. comprises a vertically adjustable plate supported by at least three legs equidistantly swivelled on an articulation member with their swivelling axes in a plane parallel to that of the plate, the upper ends of the legs being equidistantly disposed in a circle and connected with adjusting means so that their radial distance from the centre of the circle is variable simultaneously and to an equal extent to change the level of the plate in the vertical direction. As shown, table legs 2 are swivelled at 4 on an articulation member 3 and their upper ends hinged to slides 5 guided in rails 6 which are tangential to a rotatable cylindrical disc 7 secured to the underside of the table top 1. The outer end of each of three steel tapes 8 is secured to a slide 5 and each inner end is secured to the disc 7 which can be rotated by an eccentrically positioned lever 9, selectively engaging a rack 11 to wind or unwind the tapes on the circumference of the disc to alter the radial distance of the tops of the legs from the centre of the disc and the height of the table. In a modification the upper ends of the legs are hinged to the steel tapes, the cylindrical disc has a diametral bridge receiving the operating lever and is rotated by a spring in the direction for increasing the height of the table or chair. In further modifications the articulation member is other than spherical and a self-locking gear is provided to rotate the disc 7.
Patent GB-382159-A (GB)
Title: Improvements in light reflectors
IPC: F24D3/10
Filed: 1932-02-09
Abstract: 382,159. Reflectors. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent- Treuhand-Ges. fur Elektrische Gluhlampen; 11, Ehrenbergstrasse, Berlin.) Feb. 9, 1932, No. 3865. Convention date, March 27, 1931. [Classes 75 (ii) and 75 (iv).] The middle part a of a reflector is parabolic in cross section, and the outer part c, which has within its rim b an annular source of light or several sources of light arranged in a circle concentric with the axis of the reflector, is substantially elliptical in cross section, so that rays of light from the source are directed mainly into the focus f of the central parabolic part. As shown in Fig. 3, the outer part c is formed by the rotation of part of an ellipse, with one focus at f and the other at g, about the axis d, f. An annular luminous electric discharge tube h is located at the focal circle g. Two annular reflectors k, k<1>, shaped as parts of ellipsoids having their upper foci respectively at gl, g2, and their lower foci coincident at f, may, as shown, be placed in front of the outer edge of the main reflector, with associated annular sources of light h<1>, h2. In the form shown in Fig. 4, the upper part of the reflector is formed as several ellipsoidal members n placed obliquely to the axis f, d. Electric incandescent lamps o are arranged at the upper foci g. The annular discharge tubes may be replaced by smaller discharge tubes or several curved tubular incandescent lamps. For example, two discharge tubes may emit red light, and two blue light, the tubes being arranged alternately in a complete circle. In the form shown in Fig. 8, the vertex of the parabolic part a is replaced by a smaller parabolic reflector q with a white or coloured incandescent lamp r. A discharge tube emit. ting red light may be used, thus giving a red beam with a white core.
Patent GB-1522401-A (GB)
Title: Posterior chamber artificial intraocular lens with retaining means and instruments for use therewith
IPC: A61F2/16
Filed: 1976-02-02
Abstract: 1522401 Pseudophakes L FLOM and K J RODGERSON 2 Feb 1976 [14 Feb 1975, 14 Jan 1976] 04045/76 Heading A5R A pseudophakos comprises a lens 10, a lens retaining member 30 and posts 12, 14 which extend between and connect the lens and retaining member. The retaining member may be a ring, a part ring, diametrically opposed arcuate members or buttons and may be snap-fitted or welded to the posts. In one embodiment of an instrument for placing the pseudophakos, Fig. 13, the retaining member 30 is releasably gripped between opposed grooves provided in a projecting finger 123 and a clamp 125 at the end of a manually reciprocable arm 131 attached to the instrument handle 121. The lens 10 is supported, e.g. by a generally triangular wire bridle 147, 148 at the end of a barrel 135 which is movable by adjusting nut 136. The lens can thereby be moved relative to the retaining member to snapfit the posts 13, 14 into the latter.
Patent GB-1436702-A (GB)
Title: Stress limiting or energy absorbing devices
IPC: F16F7/00
Filed: 1972-01-28
Abstract: 1436702 Seat belts NATIONAL RESEARCH DEVELOPMENT CORP 27 April 1973 [28 Jan 1972] 4061/72 Heading A3V [Also in Divisions B8 E1 and F2] A stress-limiting device for a seat belt comprises first and second members in frictional contact with each other, one of the members being a sinuous or helical wire or strip longer than the other member. When a tensile stress is applied between the members in a direction along the wire or strip or along the axis of the helix respectively, the sinuous or helical member tends to extend reducing the frictional force holding the members fixed with respect to each other, and if the tensile stress is high enough the members will move bodily with respect to each other, the "tail" of the sinuous or helical member being drawn into frictional contact with the other member. The other member may be spaced plates or a tube. To provide a variation along the device of the tensile stress value necessary for bodily movement, the cross-section of the tube or the spacing between the plates may vary along the length of the device. The amplitude and frequency of the peaks of the sinuous wire or strip, and the angle and diameter of the helix may also vary along the length of the device. This may result in plastic deformation of the wire.  In the embodiment of Fig. 6, two tubes 15 are fixed together and two sinuous wires 18 are pulled into/through them when a certain tensile stress is applied between a connection 16 and either of the end connections 17a, 17b. In parallel with the stress-limiting device there may be a link which breaks at a predetermined load value.
Patent GB-211508-A (GB)
Title: Improvements in noiseless gears and method of forming the same
Filed: 1923-02-16
Abstract: 211,508. British Thomson-Houston Co., Ltd., (Assignees of Guay, E. J., and Mansur, C. W.). Feb. 16, 1923, [Convention date]. Fabrics of varying thickness; fashioning, weaving to facilitate.-Toothed and friction wheels are built up from ribbon-like material 10 wound helically edgewise on a metal centre 4, the longitudinal textile fibres in the ribbon increasing in number from the inner to the outer edge, this effect being preferably achieved by the use of warp threads of varying thickness. Ribbon of this nature tends to coil helically when produced, and the warp threads may be so graded that the ribbon takes the curvature it will require in the wheel.
Patent GB-1336327-A (GB)
Title: Aldehydes
IPC: C07D317/26
Filed: 1971-07-08
Abstract: 1336327 Cyclopentene derivatives and intermediates therefor F HOFFMANN-LA ROCHE & CO AG 8 July 1971 [10 July 1970] 4110/73 Divided out of 32112/71 Headings C2C and C2P Novel cyclopentene derivatives of the formula wherein X<SP>11</SP> is CH 3 CO (the carbonyl group of which may be ketalized), CH 3  or CH 3 CH 2  are prepared by oxidizing the corresponding 5-(2- X<SP>11</SP> - 5,5 - dimethylcyclopent - 1 - enyl) - 3- methyl-2,4-pentadien-1-ol, followed by, if desired or necessary, removal of the ketone protecting group. The following intermediates are also prepared: 5 - (2,6,6 - trimethylcyclohex - 1 - enyl) - 3- methyl - 2,4 - pentadienoic acid ethyl ester, 3,7,7 - trimethyl - 6,11 - dioxo - 2,4 - dodecadienoic acid ethyl ester, 5-(2-acetyl-5,5-dimethylcyclopent - 1 - enyl) - 3 - methyl - 2,4- pentadienoic acid ethyl ester, 5-[2-(1,1-ethylenedioxyethyl) - 5,5 - dimethylcyclopent - 1 - enyl]- 3-methyl-2,4-pentadienoic acid ethyl ester, 5-[2- (1,1-etbylenedioxyethyl) - 5,5 - dimethylcyclopent - 1 - enyl] - 3 - methyl - 2,4 - pentadien - 1- ol, 5 - methylhex - 4 - en - 2 - one, 3 - hydroxy- 3,6 - dimethylhept - 5 - en - 1 - yne, 6,9 - dimethyl - 3,5,8 - decatrien - 2 - one, 4 - (2,5,5 - trimethylcyclopent - 1 - enyl) - 3 - buten - 2 - one, 5- (2,5,5 - trimethylcyclopent - 1 - enyl) - 3 - methyl- 2,4-pentadienoic acid ethyl ester, 5-(2,5,5-trimethylcyclopent - 1 - enyl) - 3 - methyl - 2,4- pentadien-1-ol, and 3,3-diethylenedioxybutyltriphenylphosphonium bromide.
Patent GB-1470953-A (GB)
Title: Thermal insulation in wall cavities
IPC: C08J9/30
Filed: 1973-01-26
Abstract: 1470953 Foamed aqueous urea-formaldehyde resins IMPERIAL CHEMICAL INDUSTRIES Ltd 26 April 1974 [26 Jan 1973] 4127/73 Headings C3C and C3R A foamed aqueous curable urea-formaldehyde resin composition has an acid hardener comprising an organic hydroxy acid, e.g. malic, tartaric and/or citric acid, and optionally an alkyl aryl sulphonic acid, e.g. dodecyl benzene sulphonic acid, and is used to thermally insulate walls by injecting the foam into the cavity of a wall and allowing the resin to be cured by the hardener while in the foamed condition. The foam may be made by blowing an aqueous solution comprising 0À3-2À0% by wt. of the hydroxy acid and 0À5-1À5% by weight of the sulphonic acid through a foaming gun so as to form a foam and spraying an aqueous solution comprising 20-46% by wt. of the resin into the foam as it leaves the gun, the proportions of the 2 solutions being 2 : 1 to 1 : 2 by vol., and allowing the resin to be cured by the acids while in a foamed configuration.
Patent GB-509335-A (GB)
Title: Improvements in electric cables
IPC: H01B7/28
Filed: 1938-02-10
Abstract: 509,335. Cables; porous rubber. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., and HAMILTON, G. M. Feb. 10, 1938, Nos. 4221 and 17895. [Class 36] [Also in Group V] To prevent deterioration of the impregnant in a cable having an oil-impregnated dielectric and including in its structure a part or parts made from a plasticixed oil-resistant rubbersubstitute composition, a mineral oil, of the same kind as the impregnating oil, is used as the plasticizer in the rubber-substitute composition. The parts made from the rubbersubstitute composition may constitute sheaths, portions of the dielectric, cellular expansion compensators, or layers for separating the dielectric from a pressure fluid. Suitable rubber-substitutes are " Neoprene " and the material known under the Registered Trade Mark "Buna" as " Buna N ". Fillers, such as talc, carbon black, clay and chalk, are included in the composition. In an example, an expansion compensator was formed by extruding in the form of a rod a mix comprising 200 parts by weight of "Neoprene," 100 parts of magnesium oxide, 50 parts of filler, 40 parts of mineral oil and 10 parts of zinc oxide, the rod being subsequently subjected for 14 hours to nitrogen at a temperature of 65‹ C. and at a pressure of 120 atmospheres, after which the pressure was released and the cellular body thus formed vulcanized.
Patent GB-1270643-A (GB)
Title: Improvements in or relating to headlamp reflectors
IPC: F21V7/00
Filed: 1970-01-29
Abstract: 1,270,643. Headlamp reflectors. PROJECTEURS CIBIE. 29 Jan., 1970 [3 Feb., 1969], No. 4276/70. Heading F4R. A headlamp reflector comprises an outer rigid frame 1 and a relatively thin inner lining 2 defining a parabolic reflecting surface, the lining being mainly spaced from the frame and secured thereto at least in the region of its centre. The securing means may comprise spots 4 of adhesive or mechanical fastenings (Fig. 4, not shown) and the corners of the lining, which has a rectangular mouth, are engaged in seatings 3a on the frame. The frame is preferably moulded from plastics material and the lining stamped from a thin metallic sheet.
Patent GB-634281-A (GB)
Title: Improvements in or relating to a deferred action primary electric battery
IPC: H01M6/46
Filed: 1948-02-13
Abstract: 634,281. Batteries. BURGESS BATTERY CO. Feb. 13, 1948, No..4306. Convention date, Feb. 27, 1947. [Class 53] A dry battery comprising a number of cells in series which are dipped in electrolyte when required for use is formed by mounting elements of the cells in groups on a flexible ribbon of insulating material 22 as shown in Fig. 5, and folding the ribbon in zigzag to bring adjacent elements in the groups into contact. The ribbon is of greater width than the elements so that it projects at both sides of the finished battery to diminish short circuiting between the cells. In the arrangement shown in Fig. 5, each group comprises a negative electrode 20 of magnesium, calcium or barium which is attached to the ribbon by adhesive such as synthetic resin in a polystyrene lacquer or other solvent. On the opposite side of the ribbon is a positive electrode 14 of silver, carrying a depolarizing layer 16 of silver chloride, bromide, iodide or sulphide. Instead of silver, carbon, gold or platinum may be used. The electrodes 20, 14 are connected by a metal staple, rivet, or eyelet 32 or by a small amount of solder which passes through an opening in the ribbon 22. A sheet of absorbent material 18 such as blotting paper is attached to the electrode 20 by a flexible hinge 36 secured by adhesive to both elements. In a modification, the elements 18, 20, 14 and 16 of each group are all arranged on one side of the ribbon 22, the positive and negative electrodes 14, 20 being welded together and the absorbent layer 18 making contact with an electrode of the adjacent group through an opening in the ribbon. When the ribbon with the requisite number of cells has been folded to form a stack of cells in series it is enclosed in a non-conducting frame 11, Figs. 1 and 2, of which the top and bottom walls are narrower than the end walls, the spaces between the cells and the top and bottom walls of the frame being filled with an adhesive 40 which may also be applied to one of the sides of the battery. When the battery is required for use it is dipped in water or a solution of sodium chloride or sulphate or in sea water. The Specification as open to inspection under Sect. 91 describes a modification (Fig. 13, Cancelled), in which separate sheets 50 of insulating material are used to separate adjacent cells. Each sheet 50 is provided with a rectangular opening at its lower end and is bent to form a projecting part 56 so that all the sheets project beyond the cell elements in all directions. The positive electrode 60 of each cell is bent at its lower end and is soldered to the negative electrode 66 of the adjacent cellat the part where both electrodes pass through the opening in the sheet 50. This subjectmatter does not appear in the Specification as accepted.
Patent GB-499616-A (GB)
Title: Rotary jar for use in well-drilling operation
IPC: E21B31/107
Filed: 1938-02-11
Abstract: 499,616. Well-drilling jars. KAMMERDINER, J. A. Feb. 11, 1938, No. 4319. [Class 85] A jar for use in well-drilling operations comprises means actuated by relative movement of the telescopic parts for stressing a spring, means for holding the spring against release of said stress, and means engaging said holding means for preventing release until said stress has reached a desired degree, the engaging means being actuated to release the holding means by continued movement of the telescopic parts to enable the hammer to strike the anvil. In Fig. 1, a shank 3, adapted to be Secured to the fish, is splined at 6 to the lower head 8 of an outer barrel 2 secured above to the drill string ; a flushing- fluid conduit 17 is threaded to the shank 3 and is slidable through a packing 22 in the upper head 10 of the barrel. A hammer member 24 is slidable on the conduit 17 and is threaded to a sleeve 25 with a shouldered lower end supporting an outwardly shouldered ring 34 pressed by a spring 46. Superposed conical spring rings 28 are supported below the hammer on a flange 27 within the barrel 2, a grooved ring 30 engaging the lowest pair of rings 28 and forming an abutment for the spring 46. Clutch dogs 33, pivoted at 36 to the shank 3, co-operate with a cam 35 in the barrel 2, whereby, on pulling the barrel 2 upwardly, the heads 38 of the dogs 33 first engage the ring 34 ; during further upward movement of the barrel, the spring rings 28 are compressed until the dog heads 38 pass the cam 35 and release the ring 34, the spring rings 28 then causing the hammer 24 to strike the upper head 10 of the barrel. The strength of the blow is varied by adjusting the hammer on the sleeve 25 while a stop ring 47 limits extension of the jar. In Fig. 9, the hammer 58 is carried by a mandrel 57 surrounded by a spring 60, while latches 62 project from a sleeve 63 secured to the shank 51 and surrounded by a spring 64 resting on a shouldered sleeve 67 and formed of dished resilient annuli 80 and intermediate flat annuli 81. On moving the barrel 50 upwardly, a restricted bore 71 first forces the heads 72 of the latches into an annular groove 73 in the mandrel, and the spring 60 is then compressed. Towards the end of the movement, sleeve 67 engages the lower head of the barrel, and the spring 64 is then compressed to increase the tension in the device. When the latch heads 72 pass below the bore 71, the mandrel is released and the hammer strikes its blow. In both forms, collapsing the jar automatically resets the parts.
Patent GB-1278501-A (GB)
Title: Improvements in and relating to tiltable chairs
IPC: A47C1/032
Filed: 1969-07-18
Abstract: 1278501 Adjustable seat COMPAGNIE NATIONALE AIR FRANCE 18 July 1969 [18 July 1968] 4404/69 Heading A4J A chair particularly for use in aeroplanes comprises a back 7 and a seat 8 pivoted together at 9 and simultaneously moveable relative to two side frames 2 by the engagement of pins 9, 10 and 11 in slots 5, 6 and 4 respectively formed in the side frames, pins 10 and 11 being on the back and seat respectively, slot 6 being inclined at 20 degrees to the vertical and slot 4 being horizontal. An arm rest 3 which is fixed or moveable relative to the horizontal may be provided. The seat and back may be held in position by a hydraulically operated lock. The back and seat may each comprise at least two jointed parts each part being moveable by means of a pin and slide.
Patent GB-553430-A (GB)
Title: Improvements in or relating to tool-carrying chains for coal-cutters and like apparatus
IPC: E21C35/193
Filed: 1941-11-06
Abstract: 553,430. Cutting coal &c. SMITH, S. SHEPHERD-. Nov. 6, 1941, No. 4445/43. Divided out of 553,275. [Class 68 (i)] [Also in Group XXII] Relates to a tool-carrying chain for a coal-cutter or like apparatus, made of hinged links adapted to run in a groove round the edge of a flat jib and to cut a flat groove into which the jib can enter, the links comprising side plates spaced apart to carry between them welded on pick-bosses, and consists in the links, apart from the pick-boxes, being substantially symmetrical about a plane containing the axes of the hinge pins so that on detachment of the pick-boxes, the links can be reversed and pick-boxes can be .welded to the opposite edges of the side plates from those to which they were welded previously. As shown, the links are formed of separate side plates 14 with guide flanges 20 along each edge and having at one end integral or welded &c. bosses 17, two such plates being plated together, and the bosses 17 entering between eyes 15 of the adjacent link; washers may be placed between bosses 17 to vary the width of the chain, and the plates 14 may be cut from steel channel section. Integral links may be used. The pick-boxes may be circular or egg-shaped, whereby they may be tilted to any desired angle before welding to the side plates. Specification 553,275 is referred to.
Patent GB-843700-A (GB)
Title: Process for the polymerization of unsaturated polymerizable compounds
IPC: C08F2/26
Filed: 1957-02-08
Abstract: Unsaturated compounds are polymerized in aqueous emulsion in acid media using an emulsifier which is stable in acid medium but easily saponified in alkaline medium and containing a high molecular carbon chain having 6 to 20 carbon atoms which is linked via an ester group with at least one hydrophilic group, the emulsifier being then decomposed by shifting the pH value of the reaction mixture into the alkaline range.  Specified unsaturated compounds are vinyl acetate, vinyl propionate, butadiene, styrene, acrylic compounds, maleic acid, vinyl chloride and vinyl phosphonic acid.  Specified emulsifiers are betaine ester hydrohalides, e.g. betaine dodecyl ester hydrochloride, semi-ester salts of oxalic acid, semi-ester salts of the reaction product of oxalic acid and taurine, salts of phosphoalkylcarboxylic acid esters, e.g. salts of phosphoacetic fatty alcohol esters, and salts of sulphoalkyl carboxylic acid esters, e.g. salts of sulphopropionic fatty alcohol esters.  Polymerization may be effected in the presence of peroxide catalysts and redox systems and the polymer recovered by adding sodium carbonate, acidifying with hydrochloric acid, filtering, washing and drying.  Examples describe the copolymerization of (1) vinyl chloride and vinyl acetate; (2) vinyl chloride, vinyl acetate and maleic acid; and (3) vinyl chloride, vinyl acetate and vinyl phosphonic acid.