baber/WOPTO huggingface dataset:
Patent GB-860135-A (GB)
Title: Method of making polyurethane and polyvinyl formal foams
IPC: B29B7/44
Filed: 1957-05-16
Abstract: Polyurethane and polyvinyl formal foams are made by delivering individual streams of the appropriate liquid reactants continuously and at individual flow rates corresponding with the required proportions to inlets to a mixing chamber at pressures not exceeding 300 pounds per square inch, rapidly mixing the reactants in the chamber and continuously discharging the mixture from the chamber into moulds.  The pressure in the chamber is preferably between 10 and 15 pounds per square inch, the mixing time between 40 and 60 seconds and the reaction is complete within 100 and 120 seconds after discharge.  The mixer includes a rotatable stirrer (see Group II) the speed of which is used to control the pore size of the foam.  For making polyvinyl formal foams the liquids comprise an aqueous solution of polyvinyl alcohol containing a foam stabilizing agent, an aqueous solution of sulphuric acid containing dissolved formaldehyde and a saturated aqueous solution of sodium bicarbonate.  The evolved carbon dioxide is maintained in solution in the mixing chamber. The foam is cured by heating in the moulds.  For making polyurethane foam the liquids comprise a polyester, a diisocyanate solution and an aqueous solution of a tertiary amine catalyst. Specification 860,136 is referred to.ALSO:Polyurethane and polyvinylformal foams are made by delivering individual streams of the appropriate liquid reactants continuously and at individual flow rates corresponding with the required proportions to inlets to a mixing chamber at pressures not exceeding 300 pounds per square inch, rapidly mixing the reactants in the chamber and continuously discharging the mixture from the chamber into moulds.  The pressure in the chamber is preferably between 10 and 15 pounds per square inch, the mixing time between 40 and 60 seconds and the reaction is complete within 100 and 120 seconds after discharge.  The mixer includes a rotatable stirrer the speed of which is used to control the pore size of the foam.  For making polyvinyl formal foams the liquids comprise an aqueous solution of polyvinyl alcohol containing a foam stabilising agent, an aqueous solution of sulphuric acid containing dissolved formaldehyde, and a saturated aqueous solution of sodium bicarbonate.  The evolved carbon dioxide is maintained in solution in the mining chamber.  The foam is cured by heating in the middle.  For making polyurethane foam the liquids comprise a polyester, a diisocyanate solution and an aqueous solution of a tertiary amine catalyst.  Specification 860,136 is referred to.
Patent GB-281991-A (GB)
Title: Improvements in carburettors
IPC: F02M19/035
Filed: 1927-06-10
Abstract: 281,991. Meunier, P. Dec. 13, 1926, [Convention date]. Spray carburettors.-The choke tube a surrounding the main nozzles x is provided with radial air inlets a<2> and with a truncated conical extension e formed with two or more rings of holes e<3> communicating with annular converging mixture outlet orifices g, f. According to the Specification as open to inspection under Sect. 91 (3) (a), the main and slow-running nozzles x, y are supplied from the float chamber through separate conduits h., i. The slow-running nozzle y delivers into a mixing- chamber j opening into a conduit l the outlet of which is controlled by a groove m in the spindle n of the throttle valve c, the groove m communicating in any suitable manner with the carburettor outlet k. As shown in Fig. 2. (Cancelled), the groove m opens into a central conduit o in the spindle n, the conduit being provided with two rows of opposed radial orifices which communicate repectively with air inlets q and mixture outlets p in the boss of the throttle valve. The main and slow-running nozzles may be supplied with different fuels, heavy fuel being supplied to the conduit h supplying the main nozzles from an annular float chamber surrounding the float chamber supplying light fuel to the conduit i of the slow-running nozzle. When heavy fuel is used, the main nozzle may comprise an outlet tube z Fig. 5 (Cancelled), provided with fuel inlets z<1> dipping into a fuel supply tube w, the tube w being surrounded by a sleeve v provided with inlets v<1> for the admission of aerating air. This subject-matter does not appear in the Specification as accepted.
Patent GB-593895-A (GB)
Title: Improvements in upholstered articles of furniture
IPC: B60R13/02
Filed: 1945-06-20
Abstract: 593,895. Upholstery. DEANS, C. F. June 20, 1945, No. 15661. [Classes 52(ii) and 52(iv)] [Also in Group XXXII] A strip of material 12, which covers the seam of the covering fabrics 16 on a seatback squab, is recessed to receive a panel 11 mounted in a slot in the tubular back frame 18 and serving as a hand grip. Alternatively the strip 12 can be recessed to receive the frame tube itself or any other structural element of the seat.
Patent GB-1525688-A (GB)
Title: Gearshift mechanism for a changespeed gear transmission for motor vehicles
IPC: F16H63/44
Filed: 1977-04-15
Abstract: 1525688 Change-speed gear STEYR DAIMLER PUCH AG 15 April 1977 [27 April 1976] 15788/77 Heading F2D  In a change-speed gear having low and high ranges, selected by fluid pressure under the control of a sensor 8, and four forward ratios in each range selected by shift rods 1, 2, a single transversely-mounted shaft 4 is slid axially and rotated by a hand lever (not shown) moving in a gate to cause one of a pair of fingers 5a, 5b to engage fingers 6 to move rod 1 or 2. In the low range the finger 5a engages fingers 6 and in the high range finger 5b engages fingers 6, sensor 8 being actuated due to a cam 7. A spring 15 biases the rod 4 to a central axial position in neutral in either range a spring-biased ball 18 engaging slots 17 in a sleeve 12 to define the selected range. A reverse and creep gear selector shaft 3 is movable by finger 5b when the shaft 4 is moved to the left of the low range position.
Patent GB-569443-A (GB)
Title: Improvements in and relating to coverings embodying weatherproof panels for roofs, walls and the like
IPC: E04D3/366
Filed: 1943-09-27
Abstract: 569,443. Covering panels for roofs &c. ENFIELD ROLLING MILLS, Ltd., and STUBBS, R. L. Sept. 27, 1943, No. 15844. [Class 20 (iv)] A weatherproof panel for roofs, walls &c. comprises metal sheets secured by adhesive to fibre-board, wood, asbestos cement &c., 1, as described in Specification 569,438, having the edges extended to form flanges 3, 4 engaging an inner rib or roll 5 and an outer cap 10, the whole being secured to the purlins by screws or hook bolts 13. The inner rib 5 has outward flanges 6, 7 extending beneath the boards 1 and a strip of board 8 may be inserted between the limbs. The edges of the cap are preferably inturned as shown to engage the flanges 3, 4. One edge 4 of a panel may be extended to form a cap and to engage the flange of an adjoining sheet.
Patent GB-110913-A (GB)
Title: Improvements in Adjustable Hinges.
Inventor: WAY JOHN HOWARD
IPC: E05D7/00
Filed: 1917-10-31
Abstract: 110,913. Way, J. H. Oct. 27, 1916, [Convention date]. Barrel and cylindrical hinges; hinge pins.-Relates to leaf hinges which are adjustable as between the leaves. According to the invention, the adjustability is provided for by employing a pintle, successive portions 12, 13, 14 of which are excentric and, to allow of the free insertion through the knuckles, each successive portion is reduced in radius by the amount of its excentricity in relation to the preceding portion. The upper and lower portions 12, 14 are concentric. The knuckle 5 is bored concentric with and the same diameter as the bore of the upper knuckle 3. The pintle may be fixed adjustably in relation to the leaf 2 by projections and notches 11 or by a pin entering one of a circular series of holes made in the top of the knuckle. The knuckles of the leaf 1 are bored eccentrically, as shown in Fig. III, and those of the leaf 2 concentrically as shown in Fig. IV. The pintle may be held down by a flange 16 on its split lower extremity, or by a screw and nut.
Patent GB-159203-A (GB)
Abstract: 159,203. Lederer, A. Feb. 25, 1920, [Convention date]. Indicating, optical devices for; index hands.-To increase the sensitiveness of hot-wire instruments depending upon the expansion of the wire, the hot wire is supplied with an independent heating-current from a separate source, upon which the current to be measured is superposed without initial interference of the current sources. As shown in Fig. 2, two hot wires 2, 3 are arranged in parallel between terminals 4, 5 by means of which they are supplied with current from a battery 6. Levers 7, 8, mounted on steel blades 9, 10 forming the armatures of magnets 11, 12, engage the hot wires 2, 3. Spring wires 15, 16 conveying the current to be measured are joined to, but insulated from, the levers 7, 8, and make electrical contact with the wires 2, 3 at their central points, so as to form a wheatstcne-bridge connection. Relative motion of the levers 7, 8 is indicated by a steel mirror 19 carried by short magnetic steel blades 17. 18 on the ends of the levers 7, 8. In a modification, Fig. 4, a number of hot wires 1 - - 6 are arranged in a circle between two conducting plates by means of which the independent heating-current is introduced. The centres of the hot wires are connected alternately by springs 26 to wires 34, 35 by which the current to be measured is introduced. The springs 26 expand a resilient ring 27, open at one place, relative motion of the ends of the ring being communicated by links 28, 29 to a lever 30 carrying a pointer 31. Other mechanisms may be used for indicating the expansion of the ring 27. A regulating-resistance may be inserted in the heating-current circuit to enable the pointer to be brought to zero.
Patent GB-273685-A (GB)
Title: Process for the manufacture of alkyliso propylphenols and their hydrogenation products
IPC: C07C37/00
Filed: 1927-06-15
Abstract: 273,685. Chemische Fabrik auf Actien, vorm. E. Schering. June 29, 1926. Phenols; cyclohexanols.-Alkylisopropylphenols or the corresponding cyclohexanols are obtained by treating alkylisopropylenephenols with hydrogen, preferably under pressure and at an elevated temperature, in the presence of a hydrogenation catalyst until two or eight atoms of hydrogen have been taken up per molecule of starting material. The alkylisopropylenephenols may beprepared by the process described in Specification 273,686. According to examples, (1) thymol is obtained by the hydrogenation of 3-methyl-6-isopropylenephenol under mild conditions; at higher temperature and pressure menthol results; (2) 4-methyl-6-isopropylenephenol under similar conditions yields 4-methyl-6-isopropylphenol and 4- methyl-6-isopropylcyclohexanol.
Patent GB-756791-A (GB)
Title: Improvements in or relating to method and apparatus for disintegrating solid materials
IPC: B02C19/06
Filed: 1954-05-31
Abstract: 756,791. Pulverizers. TEXACO DEVELOPMENT CORPORATION. May 31, 1954 [June 8, 1953], No. 16033/54. Class 59. Particles of solid material are disintegrated by forming a flowable mixture of the particles in a vaporizable liquid, heating the mixture to vaporize the liquid and form a dispersion of the particles in the resulting vapour, injecting a relatively confined stream of the dispersion into a chamber, separately injecting one or more streams of a gas at high velocity into the chamber, and impinging the injected streams against each other to develop turbulence and fragment the particles by impact with one another. As shown in Fig. 1, the particles to be ground are mixed intimately with a vaporizable liquid to form a slurry in a tank 11 and discharged by a pump 13 through two pipes 15, 17 which lead through a furnace 19 to a chamber 21 ; within the furnace the streams passing through the pipes are heated to above the vaporizing point of the liquid so that a flowing dispersion of the particles in a gas passes through two outlet nozzles 23, 25 into the chamber 21 ; the nozzles are inclined towards the outlet 22 of the chamber and are preferably provided with wide and thin outlets so that the dispersions are directed towards each other in sheet-like streams. The grinding effect is augmented by one or more high velocity gas jets discharging through nozzles 31, 33 located down stream of the nozzles 23, 25 and supplied from a header 37 mounted inside the chamber 21. The streams then pass through an outlet pipe 39 to a separator 41. The liquid used for the slurry is selected according to the material being ground. water being used for relatively stable materials such as coal, talc, barite and oyster shells, kerosene or mineral oil for metals, and cold liquefied gases such as propane, butane or air with materials such as waxes which are soft at high temperature ; the gas injected through the nozzles 31, 33 may be steam or air. When the slurry liquid is led by a single pipe through the furnace to the chamber 21, Fig. 3 (not shown) an annular series of high velocity gas jets acts upon the dispersion stream. In the modification shown in Fig. 5, the dispersion flows through a conduit 69 having a flared mouth 71 opening into the top of the disintegrator chamber 73 and the high velocity stream supplied from a header 75 passes into the dispersion through an annular series of ducts 77.
Patent GB-497019-A (GB)
Title: Improvements in corks, solid and perforated
IPC: B01L3/14
Filed: 1937-06-10
Abstract: 497,019. Stoppers. BAIRD & TATLOCK (LONDON), Ltd., and HOUGH, A. T. June 10, 1937, No. 16089. [Class 125 (iii)] Rubber &c. corks &c. for flasks, bottles, &c. having longitudinal bores 1, have each of such bores of the same diameter at the ends 3, 4 but of greater diameter either for the whole of the intervening length as shown in Fig. 2 or for parts of such length as shown in Fig. 7, in order to permit of the free passage and withdrawal of tubes &c. In place of the undulating section of Fig. 7, the bore may have a saw-tooth or crenellated form. The exterior of the cork may have a similar section. The spaces in the bore may contain luting, leak-detecting, &c. compositions.
Patent GB-832952-A (GB)
Title: Improvements in cutting or abrading tools
Inventor: RAYBOULD STANLEY
IPC: B23D71/00
Filed: 1958-05-20
Abstract: 832,952. Files and rasps. SIMMONDS AEROCESSORIES Ltd. May 20, 1958, No. 16154/58. Class 61. In a file or rasp comprising a metal strip 1 having cutting edges constituted by portions of the edges of through holes 5, the backing member consists of a U-shaped piece of wire having its ends rigidly fixed to a supporting block 10 on which the handle 11 is mounted, the side edges 2, 3 of the blade being bent rearwardly to grip around the wires and to allow assembly by relative sliding movement. The rear face of the block 10 has a longitudinal recess 12 leading into a wider recess 13 which receives the end of the cutting element 1. A clamping plate 20, which is a loose fit in the recess 12 and extends with the recess 13, carries a stud which extends through the block 10 and co-operates with a wing nut which is tightened to secure the end of the cutting element to the block 10. Specifications 666,573, 695,830 and 695,859 are referred to.
Patent GB-529499-A (GB)
Title: Improvements in or relating to clothes props
IPC: D06F53/04
Filed: 1939-06-02
Abstract: 529,499. Clothes props. BATTEY, E. June 2, 1939, No. 16245. Drawings to Specification. [Class 52 (v)] An extensible prop of the kind comprising a pair of slotted battens secured together by bolts has a fork or notch at the end of one part to receive the linen line and a metal shoe or ferrule at the end of the other to save wear.
Patent GB-823459-A (GB)
Title: Arched frames for underground levels
IPC: E21D11/18
Filed: 1957-05-22
Abstract: 823,459. Mine arches. PROGRES CHARBONNIER PROCHAR SOC. COOPERATIVE. May 22, 1957 [June 1, 1956], No. 16282/57. Class 20(2) Steel mine arches have one or more struts 7 attached at the ends of their curved and rigid limbs 2. The struts may overlap and braces may be fitted between the strut and limb.
Patent GB-367267-A (GB)
Title: Plug-in point for electric current
IPC: H01R13/05
Filed: 1931-06-04
Abstract: 367,267. Thermionic valves and valveholders. STUCKY, C. RODE-, 9, Rue de Beaumont, Geneva, Switzerland. June 4, 1931, No. 16376. Convention date, June 7, 1930. [Class 39 (i).] A valve pin 1 is divided by longitudinal cuts 2 into sections 5 that are bulged at the centre and held together at their free end by an encircling split ring 3. The ring is located in an annular groove 4. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a socket similarly constructed and states that the ring need not be split. This subjectmatter does not appear in the Specification as accepted.
Patent GB-784546-A (GB)
Title: Processes for the catalytic cracking of hydrocarbon oils
IPC: C10G11/18
Filed: 1955-06-09
Abstract: <PICT:0784546/III/1> Gas oils of wide boiling-range and other hydrocarbon oils are cracked to obtain gasoline in a two-stage process, wherein the vaporized oil is first passed together with freshly-regenerated finely-divided catalyst through a reaction zone maintained at a temperature of at least 1000 DEG  F., the contact time between the vapours and the catalyst being not above 12 seconds; the vapours are then immediately separated from the partially-used catalyst and are fractionated to obtain gasoline and an oil boiling above gasoline, this higher-boiling oil is cracked in a second reaction zone, which is maintained at a temperature lower than that in the first zone, in the presence of partially-used catalyst, the contact time between the vapours and the catalyst in this second zone being at least two minutes; and finally, the product-vapours from the second zone are fractionated to obtain gasoline.  The process gives a high gasoline yield at a high oil-conversion level, the production of coke being low.  The process may be used for cracking reduced crude petroleum, but is particularly suited for flashed distillates.  A mixture of flashed distillate, produced by vacuumflashing a straight-run residue, and heavy oil produced by propane-deasphaltizing the residue from the flashing operation, is fed through line 1 at a temperature of 810 DEG  F.; and hot regenerated silica-alumina catalyst particles are added through standpipe 2.  The mixture now has a temperature of about 1010 DEG F., and it is passed through reactor tube 3, which is 109 feet long, at a linear vapour-velocity of 42 ft./sec.  A conversion of 52 per cent is effected in tube 3; and the mixture is discharged into cycloneseparator 4.  The vapours are passed to fractionator 5, from which gasoline is withdrawn overhead.  The oil obtained at the base of fractionator 5 is pumped to reactor 7 where it is cracked in the presence of the partially catalyst from separator 4, the catalyst being maintained in reactor 7 as a dense fluidized bed at a temperature of 910 DEG  F.  By adjusting the catalyst bed level, the conversion is limited to 21 per cent.  The vapours pass to fractionator 10; and gasoline is taken overhead. The bottoms are in part recycled to reactor 7, the remainder being withdrawn from the system.  After having remained in reactor 7 for about 5 minutes, the catalyst is withdrawn through line 12, and is conveyed by air to regenerator 14, where it is regenerated and raised to a temperature of 1110 DEG  F.  In a modified process, the first stage, i.e. the dispersed-phase operation, may be carried out in two parts in separate reaction zones.
Patent GB-514803-A (GB)
Title: Improvements relating to filters
IPC: B01D27/00
Filed: 1938-06-03
Abstract: 514,803. Filters. GENERAL FILTERS, Inc. June 3, 1938, No. 16658, Convention date, Nov. 15, 1937. [Class 461 A filtering device comprises a filtering element which is spring - pressed to seat against an annular surface on a casing so that fluid may be permitted to flow from an inlet to an outlet conduit without first passing through the filtering element. In the construction shown, a casing 11 provided with an inlet 16 for liquid to be filtered is formed with a ledge 14 to receive the edge of a filtering cartridge 24 which is pressed downwardly by means of a spring 34. Normally a little liquid is bye-passed into a channel 26 communicating with the outlet 21, but when the pressure of the liquid exceeds a predetermined value the cartridge is raised from its seating permitting a large amount of the liquid to flow directly to the outlet. The cartridge comprises a cylindrical wall with perforated ends 27, 28. The interior contains a coarse screen 38 near the bottom, a coarse screen 41 and a felt disc 42 near the top, a double screen 39 near the side wall, and a screened core 40. The space between the core and the screens is filled with fine filtering material.
Patent GB-514809-A (GB)
Title: Improvements in or relating to cathode-ray apparatus for the production of luminous images
IPC: G03B21/62
Filed: 1938-06-07
Abstract: 514,809. Luminescent materials. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 7, 1938, No. 16925. Convention date, June 9, 1937. [Class 39 (i)] The coloured image obtained on the fluorescent screen in a cathode ray tube is projected by an optical system on to a diffusing projection screen containing fluorescent material which, when subjected to radiation by the coloured image, fluoresces in a region or regions of the spectrum which jointly with the colour of the initial image, give a substantially white image. The fluorescent substance of the cathode-ray tube may be green-fluorescing zinc silicate and the fluorescent substance of the projection screen is orange- and red-fluorescing rhodamine. When the fluorescent material of the cathoderay tube is a mixture of calcium tungstate and magnesium silicate the fluorescent substance of the projection screen is fluorescein. A ground glass projection screen may be viewed on the side remote from the tube.
Patent GB-200806-A (GB)
IPC: A61K33/18
Filed: 1923-06-29
Abstract: 200,806. Truttwin, H. July 17, 1922, [Convention date]. Void [Published under Sect. 91, of the Act]. Lotions; ointments; antiseptics.-Iodine preparations for therapeutic and disinfectant purposes consist of mixtures of organic or inorganic iodine compounds with substances, such as acids, salts having an acid reaction, or oxidizing agents, which will cause a gradual liberation of free iodine. The preparations may be used in the form of solutions in water or may be worked up with an ointment base. In examples bismuth potassium iodide is mixed with potassium iodide and lactic acid or with lactic acid alone, sodium or potassium iodide is mixed with uranyl nitrate or hydriodic acid, and albumen iodide is mixed with an oxidizing agent.
Patent GB-507524-A (GB)
Title: Improvements in or relating to methods of preserving eggs
IPC: A23B5/10
Filed: 1938-06-08
Abstract: 507,524. Preserving eggs. S.A.C.S.A. SOC. ANON. CONSERVAZIONE STERILIZZAZIONE ALIMENTARI. June 8, 1938, No. 17072. Convention date, June 9, 1937. [Class 49] Eggs in the shell are preserved by inserting in a container the air in which is then replaced by a preserving gas substantially free from oxygen, the gas introduced being replaced at intervals during the first few days of the preserving period by a further quantity of the gas until all the oxygen in the eggs has been diffused into the gas, the container being then filled with fresh preserving gas which is practically free from oxygen and so remains. The preserving gas may be passed successively through a number of containers, each container being filled with fresh gas when all the oxygen has diffused from the eggs.' Two or three replacements of the gas are sufficient to eliminate the oxygen. Where the preserving gas consists of a mixture of carbon dioxide and nitrogen it can be introduced at the lower part of the container and the air displaced upwardly. The process should be carried out at 0À5 to - 0À5‹ C. aaid the humidity in the container may be kept at 80-90 per cent.