baber/WOPTO huggingface dataset:
Patent GB-866106-A (GB)
Title: Improved arc working process and apparatus
IPC: H05B7/00
Filed: 1957-06-28
Abstract: 866,106. Arc melting furnaces. UNION CARBIDE CORPORATION. June 28, 1957 [June 29, 1956], No. 20417/57. Class 39(3). An arc furnace comprises a chamber 44 enclosing a -crucible 40 for holding the material 52, e.g. titanium sponge to be melted and means for producing an electric discharge between an electrode 60 and the material 52, the means forming one or more arc torches producing a stable beam of ionised gas directed to the material 52. A non-consumable tungsten electrode 60 is mounted within a metal nozzle 54 having an orifice 56 through which the arc is directed; and an inert gas, e.g. argon supplied under pressure from a pipe 66 to the nozzle fills the chamber. The arc torch is mounted in a ball and socket joint 50 on a cover 51 of the water-cooled chamber, so that the arc may be directed to any part of the surface of the material 52. The electrode 60 is connected to the negative side of a D.C. source having its positive side connected to the crucible 40 and for starting the arc through a ballast resistor 64 to the nozzle 54. The orifice 56 of the nozzle shapes the cross-section of the arc and is water-cooled. Several arc torches may be mounted in the cover 51; and if material to be melted is non-conductive when cold, a pair of stabilised beams of ionised gas is arranged to impinge on one another just above the material. The electrodes may be of the same or opposite potential and the crucible is of opposite potential to at least one of the electrodes. If the material becomes conductive when hot, the arc torches are then directed on to it so that it forms a resistance in series with the arcs. The titanium sponge is fed to the crucible through a pipe 68. The arc torch impinges on the molten material, e.g. an alloy so as to cause stirring thereof. The crucible 40 is of copper and is cooled by water. A 3 phase A.C. may be used in star connection with three electrodes. In a modification a protective gas, e.g. argon or nitrogen is fed to the electrode to make the arc torch and another gas either cheaper or more reactive is fed into the arc downstream of the arc. Thus preheated oxygen may be added to the arc in making steel by an oxygen gas process. An annular consumable carbon electrode may surround the nozzle and may be fed automatically so that its lower end projects just below the nozzle. A larger current is supplied to the carbon electrode than to the central arc torch which it surrounds and supplies energy to the arc torch. Specifications 845,410 and 845,411 are referred to.
Patent GB-584469-A (GB)
Title: Improvements in or relating to induction discs for watthour meters and the like
IPC: G01R11/02
Filed: 1944-10-21
Abstract: 584,469. Power meters; supply meters. FERRANTI, Ltd., PRINCE, J., and WHITEHEAD, M. Oct. 21,1944, No. 20432. [Class 37] [Also in Group XXXV] An induction disc for an electrical meter, motor, eddy-current brake &c. consists, at least partly, of an unstable material of high conductivity/mass ratio which is covered by a protective sheath of stable material. In Fig. 1, a dish-shaped circular trough a of aluminium is filled with sodium b, preferably under vacuum conditions, the trough sealed by the attachment of the aluminium cover c and the resulting disc embedded in a surround f which in turn is attached to the rotor spindle d of the meter. The Specification also describes embodiments in which the unstable material is used as the main conductor of eddy currents in induction discs made in accordance with Specifications 370,067 and 583,357. The low resistance material being concentrated in one or more annuli carried by a disc of highresistance or insulating material. Other light unstable metals such as potassium, calcium, lithium can be used and other materials such as glass, varnish, mica, plastic material can be used for the protective sheath.
Patent GB-957545-A (GB)
Title: Improvements in level indicating devices
Inventor: SHARP HECTOR
IPC: B65G47/00
Filed: 1962-05-28
Abstract: 957,545. Level indicator in hoppers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 28. 1963 [May 28, 1962], No. 20450/62. Heading B8S.  A level detector for a hopper 1 is formed by a weight hung on a cable 4 which is secured to an eccentric peg fixed on disc 5 rotated by motor 6. The cable passes round spring-biased pulley 8 so that normally weight 3 is reciprocated vertically by the operation of disc 5, thus maintaining cable 4 taut and switch 9 unactuated. When the material builds up in hopper 1 beyond the predetermined limit the weight 3 in its reciprocating movement contacts the surface of the material and cable 4 slackens, This causes the actuation of switch 9 and gives a warning. Weight 3 may act similarly to give a warning when a lower limit of material in the hopper is to be indicated. Alternatively cable 4 may operate outside the hopper and actuate a pivoted bar as a level indicator within the hopper.
Patent GB-1341621-A (GB)
Title: Recipricating pumps for viscous media
IPC: F04B53/12
Filed: 1971-04-19
Abstract: 1341621 Reciprocating pumps H KRONSEDER 19 April 1971 [30 Jan 1970 6 June 1970] 20636/71 Heading F1A A pump for viscous substances, e.g. glue or jam, comprises a cylinder 1 disposed, in use, in the substance to be pumped in a container 24, and a piston 6 reciprocable in cylinder 1 between the position shown and an upper position in which it moves out of the cylinder, to permit entry of the substance from container 24, delivery being effected via hollow piston rod 8 on the downward stroke. A non-return valve 9 may be provided, or the piston and piston rod passages may be dimensioned to limit return flow. Cylinder 1 is supported by rods 3 which also guide piston 6. An air motor 2 drives piston 6, and has adjustable throttle valves for setting the piston speed. Container cover 22 is adjustably mounted on rods 3 by screws 23. The pump alternatively may be electrically driven.
Patent GB-482100-A (GB)
Title: A process for the preparation of artificial resins
IPC: C08G8/28
Filed: 1937-07-26
Abstract: Artificial resinous condensation products are separated into high molecular and low molecular weight products by treating a solution, whilst heating, of the condensation product with a precipitant which is soluble in the solvent until a cloudiness is produced and then cooling the mixture.  In an example a phenol-formaldehyde resin dissolved in alcohol is treated with water at a temperature of 60 DEG C. and when cloudiness occurs the mixture is cooled and the precipitate collected.  The process may be repeated to yield further fractions.
Patent GB-1307716-A (GB)
Title: Process for reducing the combined sulphur content of claus tail  gases
IPC: C01B17/04
Filed: 1970-04-29
Abstract: 1307716 Reducing the combined sulphur content of Claus tail gases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 29 April 1970 [1 May 1969] 20655/70 Heading C1A A process for reducing the combined sulphur content of Claus tail gases comprises cooling the tail gases to below the dew point of sulphur, removal of the elemental sulphur thus deposited, and then passing the residual gases through a bed of a catalyst which promotes the reaction of H 2 S and SO 2  to form sulphur at a temperature below the dew point of sulphur so as to deposit the sulphur formed in the catalyst bed. When the conversion falls to a limiting value the catalyst bed is reactived by passing through it a hot H 2 S-containing gas which vaporizes the elemental sulphur and removes the vapour from the catalyst bed to a condenser where the gases are cooled to deposit sulphur, said H 2 S-containing gas being substantially free from SO 2 .
Patent GB-470669-A (GB)
Title: Improvements in or relating to metal pipe joints
IPC: F16L13/08
Filed: 1936-07-27
Abstract: 470,669. Pipe joints. STEPHENTSON, A., and BRITISH OXYGEN CO., Ltd. July 27, 1936, No. 20784. [Class 99 (i)] [Also in Group XXII] A joint between metal pipes and tmion sleeves or multiple branch fittings is made by forming the fitting &c. at its end with or mounting in or adjacent its end a preformed fusible jointing ring of relatively high surface tension metal or alloy so that the ring may be fused directly by a blowpipe or other heating medium and the continuity of the internal surface thus preserved without internal cavities, projections, &c. at whatever angle the joint is situated. For joining iron or steel pipes, cast irons, stainless steels, bronze, copper, brass or silicon brass may be used, for copper pipes, brass, bronze, copper-silver alloys or silicon brass, for aluminium pipes silicon aluminium alloys and for lead pipes lead tin alloys. The sleeve 1, which may have recessed ends, may be of a metal or alloy of melting point lower than that of the pipes 2, but of high surface tension, the amount to be melted being determined by forming grooves 4 or ridges 5 at the desired positions. Pipes may be similarly united in a multiple branch fitting, formed with internal shoulders to abut against the ends of the pipes. Holes may further be drilled in the fitting to supply solder of low surface tension to solder the joint between the pipe end and the interior of the socket part of the fitting. In another form a sleeve of metal similar to the pipes has lugs 8 to hold on its end a wire ring 7 of the high surface tension fusible metal. The pipes abut shoulders in the sleeve. In further forms, a resilient split ring may be inserted in a recess in the end of the sleeve with its end projecting, or a split ring may be slidable on and resiliently held on the pipe adjacent the sleeve. In another form, Fig. 10, the ring 7 may be cast or fused in an undercut groove in the sleeve, and openings 11 also provided for molten metal. In Fig. 11, rings 7 may be cast or fused in the sleeve 1 or be preformed and split or in sections inserted in the recess. In another form a ring is cast on the end of the sleeve. A resilient split ring 7 may also be seated in the end of a flanged sleeve 1, Fig. 13, or a semicircular ring may be secured to the end of the sleeve or a circular ring soldered or welded thereto. The size of the rings may be varied to suit the thickness of the pipes.
Patent GB-1081869-A (GB)
Title: Improvements relating to shaft seals
Inventor: TASSEL ALFRED CHARLES
IPC: F16J15/00
Filed: 1965-05-17
Abstract: 1,081,869. Shaft seals. EFCO FURNACES Ltd. June 1, 1966 [May 17, 1965], No. 20809/65. Heading F2B. Sealing means for the shaft 10 of a vacuum furnace 13 comprises a main seal 22 arranged to be pressed into sealing contact with a cooperating seating by the pressure differential across the seal when the furnace is under full vacuum conditions, means for lifting the main seal off its seating when the pressure differential is reduced, and a back-up seal 30 which is in permanent sealing contact with the shaft and seals the shaft against the reduced pressure whilst also allowing it to rotate and/or move axially relative to the furnace. A rigid collar 23 carrying the main sealing ring 22 and the back-up sealing ring 30 is resiliently and sealingly connected to a boss 25 on the furnace wall 12 by a flexible diaphragm 27 and has a bracket 33 pivotally connected by a lever 34 with the plunger 36 of an hydraulic or pneumatic jack 37. When the furnace is under full vacuum, the ring 22, which is of rubber, is pressed by the pressure differential acting on the collar and diaphragm against a surface 19 of a flange 18 on the shaft. When it is desired to rotate the shaft, the pressure differential is reduced by admitting gas into the furnace and at a given pressure the collar 23 is lifted by the jack 37, the shaft then being sealed by a lip 32 on the ring 30.
Patent GB-656579-A (GB)
Title: Improvements in or relating to stoppers for bottles, jars and the like
IPC: B65D39/08
Filed: 1949-04-14
Abstract: 656,579. Stoppers. GOODBURN ENGINEERING CO., Ltd., and GOODBURN, G. W. April 14, 1949, No. 20872/48. [Class 125 (iii)] A stopper of resiliently deformable material has an integrally formed sealing member which presses against the bottle neck when the stopper is screwed thereon. The stopper may be externally threaded at 12, the skirt portion 16 protecting the exterior of the bottle-neck; a recess 18 in the stopper head 13 renders it more deformable, the tapered sealing member 15 being compressed against the bottle-neck. When the stopper is internally threaded at 23, Fig. 3, the tapered plug portion 25 acts as a sealing member. The exterior of the skirt 22, 26 is provided with projections to improve the grip. The stopper may be of polythene or of plastic materials coloured to indicate the nature of the contents. The recess 18 may be of non-circular shape to receive a key for turning the stopper.
Patent GB-1100526-A (GB)
Title: Baby carrier
IPC: A47D1/00
Filed: 1966-05-12
Abstract: 1,100,526. Baby carriers. INFANSEAT CO. 12 May, 1966 [18 May, 1965], No. 21076/66. Heading B7B. A baby carrier comprises a plastics moulding having sides 23, a back 21 and a pocketed bottom 26 into which detachable wheel mountings are inserted, the wheels having serrated outer surfaces engaged by pivoted pawls thus preventing movement of the wheels in one direction. Pivots 90 on the sides of the carrier engage slots in the handle member 73 so that when engaged with projections 100, 102 on the back 21 swinging of the carrier about the pivots 90 is prevented. A stand is engaged in bosses 48 on the back 21 and on a selected pair of bosses 41-47 to enable the inclination of the carrier to be varied.
Patent GB-371706-A (GB)
Title: Improvements relating to photographic films wound on spools
IPC: G03C1/825
Filed: 1931-07-23
Abstract: 371,706. Photographic roll-films. I. G. FARBENINDUSTRIE AKT.-GES., Frankfort-on-Main, Germany. July 23, 1931, No. 21083. Convention date, July 23, 1930. [Classes 97 (i) and 98 (i).] Photographic and kinematographic films wound on spools are protected against entry of light by an open-ended casing of resilient material having a longitudinal slot extending between the ends and lined with velvet &c., the casing being placed over the film roll so as to cover the edges of the spool flanges. The outer end of the paper strip or the film strip is guided outwardly through the slit in the casing. The usual paper protecting strip and also special film holders may be dispensed with. The casing may be made of metal, vulcanite, cellulose derivatives, artificial resin, &c.
Patent GB-494368-A (GB)
Title: Improvements relating to centrifugal clutches
IPC: F16D43/10
Filed: 1937-07-30
Abstract: 494,368. Friction clutches. NORTHERN GENERAL TRANSPORT CO., Ltd., and HAYTER, G. W. July 30, 1937, No. 21140. [Class 80 (ii)] The pressure plate 5 of a plate clutch is moved to engaged position, against the action of disengaging springs, by the wedging action of balls 17 which move centrifugally outwards in obliquelydisposed radial bores 18. As shown in Fig, 2, the bores 18 are formed in the cover plate 8, secured to the driving flywheel 3 by studs 9, the driven plate 1 being arranged between the plate 5 and a plate 2 secured to the flywheel. The disengaging springs 15 are interposed between the plates 2 and 5. Bushes 10 in the plate 5 are guided on the studs 9, and, in the disengaged position, the conical end 11 of each bush 10 engages a conical recess 12 in the plate 8 so as to prevent rattling. As shown in Fig. 4, the bores 18 are arranged in the flywheel 3 and the driven plate 1 is arranged between the plate 5 and a second plate 24 which is guided on the studs 9 and which is urged to the left towards a stop ring 28 by springs 25. Movement to the right of the plate 5 is also limited by the ring 28. Disengaging springs 31 are interposed between the plates 5 and 24. Manual disengagement can be effected by moving the plate 24 to the right through radial levers 29.
Patent GB-407245-A (GB)
Title: Improvements in crushers
IPC: B02C1/06
Filed: 1933-07-27
Abstract: 407,245. Crushers with vibrating jaws. BIRDSBORO STEEL FOUNDRY & MACHINE CO., Birdsboro, Pennsylvania, U.S.A.-(Assignees of Peterson, E. T.; 25th Boulevard, Pennside, Reading, Pennsylvania, U.S.A.) July 27, 1933, Nos. 21155 and 21156. Convention dates, Aug. 26, 1932, and May 20, 1933. [Class 59.] The fixed jaw of a stone crusher is pivoted at its upper end and supported at the lower end by a toggle which is prevented from reaching its dead centre by a stop maintained in position by a spring, the toggle being arranged to collapse against the pressure of the spring when an uncrushable object enters the jaws. As shown a double-faced moving jaw 12 is pivoted at 11 at the upper end and is reciprocated by a link 21 and eccentric 23 at the lower end. Fixed jaws 59 oppose the moving jaws and the upper end of each fixed jaw is provided with a knuckle joint 66 held in position by a spring bolt 70. The lower end of the fixed jaw is normally retained in position by a toggle joint 76<1>, 77<1> bearing against a block 90 adjustable by shims 94. The toggle is prevented from reaching its dead centre by a bolt 79 pivoted at its upper end and encircled by a spring 85 tending to straighten the toggle, but which is compressed when the toggle is broken during the passage of iron &c. through the jaws, as shown in the left hand side of the drawing. The crushing faces 15, 16 of the fixed jaws are forced into an undercut surface on the upper end by the wedge-shaped head of a spring-pressed bolt 62 at their lower ends. The crushing faces 13, 14 of the moving jaw are forced into an undercut surface at their lower ends by transverse rods 53 bearing on the upper ends and forced into contact by vertical spring-pressed rods 55. The jaws diverge downwardly and are grooved parallel with their divergent edges and blocks 49 shaped to the divergent edges are bolted to the side plates to enclose the crushing spaces. The lower end 18 of the moving jaw is journalled in wedge-blocks 19, 20 housed in the link 21, the link being held into contact with the moving jaw by springs 30 compressed against a surface on the jaw by bolts 27 pivoted to the link. One side of the crusher may be used for coarse grinding and the other for fine grinding, the material from the conveyer 101 passes into the partitioned part 99 of the hopper, through the jaws 13, 15 to a reciprocating sieve 103 from which the coarse material is discharged into a hopper 108 of a conveyer 109 and then into the partitioned part 100 of the feed hopper. From the hopper 100 the material descends through jaws 14, 16, deflector 111, orifice 112 in link 21 to shoot 113 where it meets the sifted material from screen 103 and is conveyed at 114 to classifying screens 115, 116. The screen 103 may be replaced by an imperforate plate so that the whole of the material passing through the first crusher is returned to the second. The sifting of the material may be carried out externally of the mill.
Patent GB-445853-A (GB)
Title: Improvements in and relating to electric radiators
IPC: F24C7/06
Filed: 1934-07-19
Abstract: 445,853. Electric radiators. BERRY, H. H., 85, Newman Street, Oxford Street, London. July 19, 1934, No. 21166. [Class 39 (iii)] An electric radiator has a panel 1 and an electric heating element 10 spaced in front of a substantially vertical reflector 2 of greater width than the panel and carrying an electric lamp 11 screened by the panel so that the side margins of the reflector 2 are illuminated. The lamp may be screened by means other than the panel, and the reflector may be illuminated also at the top and bottom margins. A cylindrical heating element 10 may be placed above the lamp behind an angular panel 1 reflecting the heat in front of a taller light reflector 2 on a base 3. In Fig. 6 the lamp 11 is arranged behind a hood at the top of the reflector and the panel is apertured in front of the heating element. A hinged grid 4 with a polished rear surface may carry the panel. The reflector and panel may be translucent, shell-shaped or metallic with a polished or matt surface. In Fig. 7 tubular lamps 11 are arranged between translucent reflectors 2, 18 the rear one 18 being in two parts. Fig. 9 shows several reflectors 2, 2a and lamps 11, 11<a> arranged behind a trough-like panel 1 carrying the heating element 10. The panel 1 in Fig. 12 is carried by tubes projecting from the reflector and carrying leads for the current. The reflector is mounted in a recess 20 in a wall which may be illuminated by a lamp behind the reflector. The lamps may be multi-coloured and carry flicker devices and coloured glass screens.
Patent GB-356867-A (GB)
Title: Improvements in cocks
IPC: F16K5/18
Filed: 1930-07-12
Abstract: 356,867. Stop cocks. MOULET ET CIE, M., 51, Boulevard Emile Zola, Oullins, Rh¶ne, France. July 12, 1930, No. 21179. Convention date, Feb. 28. [Class 135.] Rotary cylindrical and piston valves.-A cock or valve comprises a rotary or sliding plug supporting one or more closure parts consisting of yielding or plastic material pressed radially into contact with the inner wall of the cock body by a spring. In the rotary valve shown the closure parts comprise cylindrical pieces of cork 4, 4a carried by metal cups 5, 5a and arranged in a bushing 8 with an interposed spring 6, said bushing having an integral operating spindle 13 extending through a stuffing-box, as shown.
Patent GB-441850-A (GB)
Title: Improvements in methods of producing dry raw rubber and to apparatus therefor
IPC: B29B13/06
Filed: 1934-07-19
Abstract: 441,850. Indiarubber. THORP, A., Old Manor, Pluckley, Kent. July 19, 1934, No. 21196. [Class 70] A fine powder of raw rubber is obtained by spraying latex on to a support to form a thin skin, drying and dusting the supported skin, and then comminuting the skin while still on the support. Apparatus for carrying out the process comprises a moving support in a drying chamber, a spraying device for the latex, dusting means, and a grinding device operating against the support. In the form shown, the moving support is a band 5 running on rollers 3, 4 in a chamber 1 which is divided horizontally by a partition 2. Filtered latex is sprayed on to the band by jets 14, and is dried by hot air having an inlet 7 and exit by the baffle 9. A dusting box 10 supplies talcum or zinc stearate to the dried film, which is then out longitudinally by a roller cutter 11 and laterally by another cutter 11a, these cutters having hair line edges. The rubber powder produced may drop into a channel 12, or by blown off and separated from dust by air from a compressed air pipe 17.