baber/WOPTO huggingface dataset:
Patent GB-992280-A (GB)
Title: Tobacco foil and a process for its production
IPC: A24B15/12
Filed: 1962-11-01
Abstract: A tobacco sheet contains tobacco dust and up to 20% by weight of the tobacco of carboxy-methyl cellulose which also contains a physiologically harmless acid in a concentration such that a 6.5% solution prepared from a newly produced sheet has a pH of between 3.5 and 6.  Preferably the carboxy-methyl cellulose is present in an amount of 12-18% by weight of the tobacco.  The acid used may be citric, tartaric, lactic or phosphoric acid.  The foil is produced by dispersing dry, finely ground tobacco with water to form an aqueous tobacco suspension, separately producing an aqueous paste of sodium carboxymethyl cellulose, mixing and homogenizing the tobacco suspension and the carboxymethyl cellulose paste to form an aqueous tobacco paste, forming the paste into a film, drying the film to form a self-sustaining sheet and ageing the tobacco sheet, the acid being added to the aqueous paste of carboxy-methyl cellulose or to the tobacco paste in a concentration such that the aqueous tobacco paste (equivalent to a 6.5% solution prepared from a newly produced sheet) assumes a pH of 3.5-6.
Patent GB-1327323-A (GB)
Title: Preparation of polytetrafluoroethylene of high apparent bulk density
IPC: C08J3/12
Filed: 1971-09-06
Abstract: 1327323 Polytetrafluoroethylene E I DU PONT DE NEMOURS & CO 6 Sept 1971 [24 Sept 1970] 41469/71 Heading C3P The apparent bulk density of granular polytetrafluoroethylene is increased by comminuting the polymer to a particle size of less than 100 microns and agitating the resulting polymer in water at less than 40 C. The granular polymer may be comminuted as a dry powder, sufficient water then being added to form a slurry on agitation, or it may be comminuted in water, more water being added before the agitation step if required. After agitation the polymer is dried to give a polymer powder having good flow characteristics and good mouldability.
Patent GB-1161207-A (GB)
Title: Improvements in or relating to Exhaust Systems of Vehicle Engines.
Inventor: WALKER JULIAN GUY HUDSMITH
IPC: F01N13/12
Filed: 1965-09-30
Abstract: 1,161,207. Valves. DEFENCE, SECRETARY OF STATE FOR. 22 Dec., 1966 [30 Sept., 1965], No. 41519/65. Heading F2V. [Also in Division Fl] An exhaust pipe outlet 1 of a vehicle engine is sealed when immersed in water by a buoyant valve 8 normally situated to one side of the outlet. The ball valve shown is supported by a cage formed of wires 3 . . . 6 and moves on to a seat 11 when immersed. The wires 3 ... 6 may be formed of two parts interconnected by thermally insulating material to reduce heating of the ball. During engine operation the ball 8 is to one side of the outlet, out of the exhaust gas stream. In a modification the ball is mounted on a lever.
Patent GB-920194-A (GB)
Title: Water filtration plant
IPC: B01D24/22
Filed: 1960-12-05
Abstract: 920,194. Sand filters. SULZER FRERES S.A. Dec. 5. 1960 [Deo. 16, 1959], No. 41797/60. Class 46. During filtration filtered water passes down a pipe 8<SP>1</SP>, Fig. 2, into a filled scavenging- water reservoir 14 and out at 32 to use. For scavenging, a valve 31 on pipe 32 is closed and valves 21 and 27 communicating with a scavenging air pump 20 are opened. Both air and scavenging water are thereby forced into chamber 6, 7 and up through nozzles 4. Pipe 32 may be connected to chamber 6, 7. The scavenging-water reservoir 14 may be higher than the filter bed. In Fig. 1, stated to be a previously-known plant, filtered water is discharged at 25 after scavenging-water reservoir 14 has been filled (through valve 12 on pipe 13). For scavenging, valve 11 is also closed, valve 12 being already closed, and valves 15, 17, 21 are opened. Scavenging water is withdrawn by pump 16 and discharged into chamber 6, 7 through pipe 8, while scavenging air is discharged through pipe 19 into chamber 6, 7.
Patent GB-1022300-A (GB)
Title: Improvements in or relating to micro-image viewers
IPC: G03B21/16
Filed: 1964-10-15
Abstract: 1,022,300. Optical-projection apparatus. NATIONAL CASH REGISTER CO. Oct. 15,1964 [Dec. 11,1963], No. 42097/64. Heading G2J. In a micro-image viewer, heat is dissipated from a film 24, at the focus of a high intensity microscope illumination system, by suction induced, intimate contact with a glass object stage 22. The optically flat surface of stage 22 has a peripheral groove, underlying the margin of film 24, which is connected by duct 54 to suction pump 50. The microscope is raised bodily by means of a conventional coarse adjustment, on operating lever 37, to allow the film to be changed. On returning lever 37 to its previous position, it closes a switch which energizes suction pump motor 49. On setting up a vacuum in the groove and in ducts 54 and 99, a pressure transducer, connected to the latter, removes an obturator disc from the path of a light beam of a Xenon arc lamp 16. A loss of vacuum, indicating that thermal contact between film 24 and stage 22 has been broken, leads to immediate re-obturation of the light beam before the film is damaged by heat. The light passes normally through lens and diaphragm 18 and is reflected by mirror 20 to condenser lens system 21 which focuses the image of the diaphragm aperture in the object plane of microscope objective 26. The position of the object stage 22 is controlled by two handles, such as 85. These operate screw-threaded rods to move carriages 48 and 72 in mutually perpendicular directions, thus bringing the selected micro-image on film 24 in the projection position. A final image is received on ground glass plates 15a, b after reflection at 27, 28 and 29. Plate 15a has a continuous orbital motion imparted to it by motor 103 to eliminate scintillation.
Patent GB-1090049-A (GB)
Title: Improvements in arc welding electrodes
Inventor: BLAKE PAUL DESMOND
IPC: B23K35/04
Filed: 1965-10-06
Abstract: A continuous fluxless welding electrode for use without shielding gas or flux is of the following composition:- .Al.0.3 - 4% .Ni.0 - 6.5% .Mg.0 - 2% .Ti.0 - 1% .Zr.0 - 1% .Mn.0.3 - 1.6% .Si.0.2 - 1% .Na.0 - 0.05% .C.0.04 - 0.25% .Fe.balance .wherein Ti + Zr .\s0 0.3% .Al + Ti + Zr.\s0 1.4% .and Al + Mg + Ti +Zr.\s9 5% The electrode may be a single alloy wire, a metal-coated wire or a tube with a metal powder filling. A solid wire of the following composition:- .Ti.0.5% .Zr.0.2% .Mn.1% .Si.0.4% .C.0.1% .Fe.balance may be coated by hot dipping with Al, 0.2% Na or Al, 5% Mg to give a total electrode content of 1.5% Al.  A constituent of a powder filling is zirconium-aluminium (30% Zr, 15% Si, 10% Al, 45% Fe).  The electrode may produce the following weld deposit .Al.0.6-0.8% .Si.0.4-0.6% .Mn.0.7-1.2% .Ti.0.2-0.3% .Zr.0.02-0.06% .C.0.04-0.08% .Fe.balance
Patent GB-970386-A (GB)
Title: An apparatus for heating gases or vapours by radiation
IPC: F22B21/34
Filed: 1960-12-09
Abstract: 970,386. Heating gases and vapours by direct contact with hot solids or fluids. R. WILLE. Dec. 9, 1960 [Dec. 11, 1959], No. 42479/60. Heading F4K. Gases or vapours are heated by radiation from a heat emitting liquid, viscous or solid mass at a temperature above about 700‹ C. In Fig. 2 molten white glass 1 is contained in a circular tank 2 which rotates about a pivot 3. The glass is heated by an oil burner (not shown). The gas to be heated is conveyed in a channel 8 which is open towards the glass between the edges 9 and 9<SP>1</SP>. In this region the velocity of the gas and rotating glass are the same. In Fig. 4 the gas or vapour to be heated enters the passage 21 via the channel 24 and is discharged via channel 25. The gas travels between two streams 22 and 23 of molten white glass which runs out of the tanks 27, 28 via the slots 30 and 31. At the lower end of the radiation path 21, the glass is deflected outwards and received by conveyer belts 32, 33 and taken to the surface of the liquid tanks 27 or 28. There the glass is returned to the tanks by the pushing devices 40. The glass is heated by oil burners 29. In another embodiment (Fig. 6), the gas passes over a cylindrical roller 54 which comprises troughs 55 such that on passing through the glass bath, the troughs fill with molten glass. To accelerate filling, the troughs are subject to negative pressure by withdrawing the air out of the channels through bores 56, through a central bore 57 and through an outlet connection (not shown). The negative pressure is only applied to the troughs in the glass bath. The gas to be heated enters at 70 and flows at the same speed as the roller 54. A solid layer of glass or other suitable transparent substance may be interposed between the molten mass and the gas. Specification 869,355 is referred to.
Patent GB-1159384-A (GB)
Title: Improvements in Reeds
Inventor: CUMBERS DAVID CHARLES
IPC: D02H13/16
Filed: 1969-01-10
Abstract: 1,159,384. Reeds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 10 Jan., 1969 [8 Oct., 19651, No. 42783/65. Addition to 1,085,216. Heading D1M. The dents of the reed of Specification 1,085,216 are approximately elliptical in shape so that the spacing between them remains substantially constant as the reed is expanded.
Patent GB-903224-A (GB)
Title: Improvements in austenitic steel
Inventor: VODSEDALEK JOSEPH
IPC: C22C38/58
Filed: 1960-12-14
Abstract: A heat-resistant, austenitic steel has the following percentage composition, by weight:- ..0.04- 0.15 .Cr.12 - 20 .Ni.30 - 42 .W.1 - 4 .Ti.0.8 - 1.5 .Al.1.5 - 4 .B.0.01- 0.15 .Mn.up to 2 .Si.up to 1 .Fe.the remainder Up to half of the W may be replaced by an equal quantity of Mo and Co 0-5, Li 0-0.3 and Zr 0-0.5 may also be present. The steel may be solution heated at 1100-1200 DEG  C. for 1-4 hours, air cooled and aged at 700-800 DEG  C. for 16-24 hours.
Patent GB-1149700-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: MARTIN GEORGES
IPC: G21C5/10
Filed: 1968-09-11
Abstract: 1,149,700. Reactors. SOC. DES FORGES ET ATELIERS DU CREUSOT. 11 Sept., 1968 [20 Sept., 1967], No. 43132/68. Heading G6C. In a gas-cooled graphite moderated nuclear reactor, heat exchangers are located within a graphite structure which supports the core. The assembly is mounted within a pre-stressed concrete pressure vessel. The coolant gases are urged by the blower 20 upwards between the thermal shielding 15 and thermal insulation 16 to the entry orifices 19 in the fuel channels. The gases are heated during the downward flow through the core 2 and pass into the wells 9, in the graphite support structure 7, which each contain a vapour generating heat exchanger 12. After leaving the orifices in tubes 10 the gases flow into the intake chamber of 20. The core support structure and the thermal shielding and insulation are subjected to only a moderate temperature. In an alternative form several fuel channels may lead into a single heat exchanger well.
Patent GB-1491955-A (GB)
Title: Apparatus for actuating beam winding means of sectional warping machines
IPC: D02H13/00
Filed: 1975-10-21
Abstract: 1491955 Machinery safety devices MASCHINENFABRIK BENNINGER AG 21 Oct 1975 [23 Oct 1974] 43143/75 Heading F2J [Also in Division D1] The control apparatus for actuating the rotatable warp beam 3 of a sectional warping machine includes a protective pivotable guard linkage 4 having, pivotally mounted thereon, a protective guard bar 28-31 arranged to extend laterally across the front of the rotatable warp beam 3, the pivotal movement of the guard linkage 4 and/or the guard bar 28-31 serving both for normal control of the drive to the rotatable warp beam 3 and for emergency stopping of the warp beam 3 if, for example, the operative's clothing, &c. is caught up by the warp threads and the operative is drawn towards the rapidly rotating warp beam 3, the forward drag of the operative's body against the guard bar 28-31, i.e. towards the warp beam 3, swinging to pivot either or both the guard bar 28-31 or/and the linkage 4 to immediately switch off the machine via electrical switches 34 and/or 27. The guard bar 28-31 is normally maintained in a control position (Figs. 2 and 3a) by a pair of opposed compression springs 32 on an operating rod 33, by means of which pivotal movement of the guard bar 28-31 about pivot pins 29, operates the switch 34, this whole unit being carried on the guard linkage 4 which is pivotally mounted at 6, 7 and connected by linkage 10, 11, 12 to an adjustable balance weight 19 on an arm 18 whereby the whole guard linkage assembly is balanced in any set position resulting in little or no effort by the operative to movably operate the control/guard linkage assembly. A contoured plate 20 provides detent notches for positioning the control/guard linkage in various set positions illustrated in Figs. 1, 2, 3a (for normal 1 M/C operations) and in Fig. 4a and Fig. 4b (for stopping an emergency stop of the M/C), the underside of the plate 20 being contoured to operate the switch 27 according to the requirements in these various settings. When in the normal position of Figs. 1, 2 and 3a, the bar 31 may be pulled back, i.e. down, to operate switch 34 to start the M/C (Fig. 3b, not shown) whilst when the bar 31 is pushed forward, i.e. up, by the operative under normal control or in an emergency by the operatives body the M:/C is immediately stopped via switch 34. Similarly if in an emergency the guard linkage 4 is pivoted out of its normal position by the operative's body being dragged towards the warp beam 3 (Fig. 3d, not shown) the M/C is immediately switched off by switch 27. The adjusted positions of the guard frame 4 in Figs. 4a and 4b show the settings, for introducing and removing the warp beam 3 and for working on the warp threads thereof, the latter operations of which is assisted by an inching or slow speed operation of the warp beam 3 by a small downward pivotal movement of the guard bar 31 as illustrated in Fig. 4c (not shown).
Patent GB-945315-A (GB)
Title: Compression sprayer
IPC: B05B9/08
Filed: 1960-12-19
Abstract: 945,315. Forcing liquids by gaseous pressure; compressors. H. D. HUDSON MANUFACTURING CO. Dec. 19, 1960 [Aug. 18, 1960], No. 43591/60. Headings FIN and F1R. In a compression sprayer comprising a tank A and a hand-operated air-pump, the pump barrel 16 is removably secured and sealed in a funnel-shaped filler neck 17 of the tank by rotation the barrel 16 to bring longitudinally inclined internal flanges 21, 22, Fig. 2, on the filler neck into locking engagement with longitudinally inclined external flanges 23, 24 on a cup-shaped member 25 secured to the top of the barrel, a sealing gasket 19 being compressed between a flange on the pump barrel and a seat in the filler neck. Member 25 and barrel 16 are rotated by depressing and rotating a pump handle 34 so that lugs 32 on the handle pass through slots 31, Fig. 4 and engage the ends of slots 29 in the base 28 of member 25, the handle being released when the barrel is secured. Rotation of the barrel in the opposite direction first releases the seal to enable the escape of residual pressure before the barrel is free to be withdrawn. Specification 837,629 is referred to.
Patent GB-1487455-A (GB)
Title: Fluid heater apparatus
IPC: F24H1/43
Filed: 1975-10-23
Abstract: 1487455 Fluid heaters BLACK SIVALLS & BRYSON Inc 23 Oct 1975 [21 March 1975] 43638/75 Heading F4S Fluid heater apparatus comprises burners 30, tubes 20 for containing the fluid to be heated, a firing wall 12, a back wall 14, side walls 16, 17, baffles 36 and chimney stacks 40. Each burner 30 is a high intensity combustion burner. The apparatus is such that portions of the combustion gases, after impinging on the back wall 14, impinge on the baffles 36 and recirculate around the heating tubes as shown. Combustion gases are withdrawn below the baffles 36 and through the chimneys 40. The tubes 20 form two banks 25, 27 each bank having an inlet 24 and an outlet (26), Fig. 2 (not shown). In modified apparatus (Figs. 5 and 6, not shown) the furnace, instead of being rectangular with two baffles 36, is cylindrical with one annular baffle (66). The tubes (60) form two helical coils in series one within the other with an inlet (62) and an outlet (64).
Patent GB-1149422-A (GB)
Title: Gyroscopically actuated electric switch
Inventor: CLARKE WALTER WILSON HUGH
IPC: G01C19/00
Filed: 1966-09-29
Abstract: 1,149,422. Inertia switches. C. B. ASSOCIATES Ltd. 27 Sept., 1967 [29 Sept., 1966], No. 43665/66. Heading H1N. A switch in a projectile having a high speed of rotation, which operates when the projectile changes its velocity or direction (for example, upon impact) comprises a double frusto-conical member 1 around which an annular member 9, with a knife-edged inner face, is free to rotate. A casing formed by a plate 2 integral with member 1 soldered at 3 to a side wall 4 is closed by a contact plate 7 spaced therefrom by insulating members 5 and 6 and secured by encapsulating resin 8. The parts 1, 2 and 9 are gold plated to provide good electrical contact. When the projectile changes direction the spinning annulus 9 gyroscopically tends to maintain its original axis and hence bridges the members 1 and 7. If the projectile decelerates a couple is applied to the annulus 9 through its contact with member 1 and precession occurs which causes bridging of members 1 and 7.
Patent GB-959118-A (GB)
Title: Improvements in or relating to brakes for mine winding gear
Inventor: BATTY ALFRED WILLIAM HENRY
IPC: B66D5/00
Filed: 1961-12-09
Abstract: 959,118. Winding gear brakes. M. B. WILD & CO. Ltd. March 11, 1963 [Dec. 9, 1961], No. 44145/61. Heading F2E. In a brake for mine winding gear top and bottom arcuate brake shoes 5, 6 symmetrically disposed about, and contractible on, a horizontal axis drum 7 and fulcrumed at 8 on a rigid support 10 are mechanically interconnected by meshing gear segments or, as shown, a linkage such that pivotal movement of one shoe causes equal and opposite pivotal movement of the other, the shoes thereby acting as counterweights to each other, and the braking force is mechanically or, as shown, hydraulically applied at or near the free ends 28. Pairs of equal length arms 22, 18, respectively secured to the shoes 5, 6 are disposed at equal angles to, and on opposite sides of, the common centre line of the fulcra 8 and are connected by a link 19. For relative adjustment of the shoes and drum the arms 22 and/or 18 may be angularly adjustable relative to the shoes or, as shown, the link 19 may be screw-threaded for adjustment relative to the arms 22 and provided with adjusting and locking nuts 23, 24. The bottom shoe assembly may be heavier than the top shoe assembly or may be spring-urged downwardly, the downward movement being limited by an adjustable stop 25, so that with the brake released the bottom shoe holds the top shoe clear of the drum. The fulcra 8 may be adjustably mounted on the support 10 to vary their centre distance. The shoes are applied and released by a double-acting hydraulic cylinder 26 and a screw-threaded, adjustable length piston 27 respectively connected to the shoe free ends. A dead-weight stand-by brake operating means comprises a lever 33 pivoted at its ends to the bottom shoe and to a deadweight 32. A screw-threaded, adjustable length rod 37 pivoted to the free end of the top shoe has a slot 35 engageable, with lost motion, with a cross-pin 34 of the lever 33. The dead-weight 32 is maintained in its raised position by the brake actuation hydraulic pressure acting in a fixed cylinder having a piston connected to the lever 33. If hydraulic pressure is not available for actuating the cylinder 26, the dead-weight is released, the lost motion in the slot 35 taken up, and the brake applied mechanically. Alternatively, the lever 33 may be pivoted to the top shoe, the pivotal connections of the lever 33 with the shoe and the rod 37, and, conveniently, the hydraulic cylinder 26 and the rod 37, being interchanged.
Patent GB-441638-A (GB)
Abstract: 441,638. Hinges. WILLIAMS, B. A., and WILLIAMS & WILLIAMS, Ltd., Reliance Works, Liverpool Road, Chester. Aug. 10, 1934, No. 23112. [Class 65 (ii)] [See also Group X] A pivotal connection for sliding parts, particularly applicable to metal casement windows hinged vertically together in pairs, of the kind described in Specification 441,637, [Group X], comprises an elongated slipper having interrupted flanges engaging a channelsection track. As shown, applied to the outer leaves 8 of pairs of hinged windows, the slippers 1 have interrupted flanges 9 to co-operate with the inturned flanges 2a of a guide-rail 2, and are fitted with sockets 3 to receive pivot-pins 5 on brackets 6 secured to the sliding mullions 7. The channel 2 and the undersurface of the slippers may be recessed, as at 11, to house the heads of attachmentscrews.
Patent GB-1200614-A (GB)
Title: Radiation shielding
IPC: G21F1/02
Filed: 1967-09-28
Abstract: 1,200,614. Polyolefin compositions. CHEMTREE CORP. 28 Sept., 1967 [30 Sept., 1966], No. 44167/67. Heading C3P. [Also in Division G6] Radiation shielding, in particular shielding with high efficiency in removing neutrons and also shielding providing for degradation of neutrons and attenuation of gamma radiation resulting from neutron capture, comprises one or more elements of atomic number 57 to 71 (rare earth elements) or compounds of these elements homogeneously dispersed in a polyolefin binder. The binder may in particular be linear (high density) polyethylene. In specific examples, 2 vols. dysprosium, l vol. dysprosium and 1 vol. gadolinium, 1 vol. dysprosium oxide, 1 vol. gadolinium tungstate, and 1 vol. gadolinium or dysprosium hydride, respectively, are dispersed in 1 vol. polyethylene, and 3 vols. dysprosium and 1 vol. gadolinium are dispersed in 2 vols. polyethylene, on a roll mill, the polyethylene being heated to a dough consistency. The product is moulded into a desired shape and cooled.
Patent GB-1013496-A (GB)
Title: A process for the preparation of metal salts ofª‡-hydroxy-ª†-methyl mercapto butyricacid
Filed: 1961-12-13
Abstract: Metal salts of a -hydroxy-g -methyl mercapto butyric acid are prepared by adding ammonium sulphate to a hydrolysis mixture of a -hydroxy-g -methyl mercapto butyric acid which may contain the acid used in the hydrolysis, e.g. that of a -hydroxy - g  - methyl mercapto butyronitrile with sulphuric acid, to form organic and aqueous layers, separating the organic layer and treating it with an aqueous suspension or solution of a basic compound of the metal, e.g. oxides, hydroxides and carbonates.  Alkali or alkaline earth metals may be used and calcium is exemplified. Specification 722,024 is referred to.
Patent GB-1398293-A (GB)
Title: Cycloalkanones and cycloalkanols
IPC: C02F9/00
Filed: 1972-09-27
Abstract: 1398293 Cycloalkanones and/or cycloalkanols ZIMMER AG PLANUNG UND BAU VON INDUSTRIENANLAGEN 27 Sept 1972 [28 Sept 1971] 44694/72 Heading C2C Carboxylic acids and their derivatives are removed from admixture with cycloalkanones and/or cycloalkanols by extracting the mixture with an aqueous alkaline solution, burning the extract in air at 550‹ to 1200‹ C., dissolving the combustion residue in water and recycling the aqueous alkaline solution so formed to the extraction stage.