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A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7910050 | Stopper for a metallurgical melting pot The invention relates to a stopper for a metallurgical melting pot with. Stoppers of this type serve to control the discharge of a molten metal in the area of an outlet of an associated melting pot, for example, a tundish. ... | 03/22/2011 |
| 7015624 | Non-uniform thickness electroactive device An electroactive device comprises at least two layers of material, wherein at least one layer is an electroactive material and wherein at least one layer is of non-uniform thickness. The device can be produced in various sizes, ranging from large structural actuator... | 03/21/2006 |
| 6913730 | Stopper rod There is provided a refractory mono-block stopper of substantially cylindrical configuration having an upper end, a lower end and an axial bore extending downwardly from the upper end, means being provided in the axial bore at a distance d from the upper end for att... | 07/05/2005 |
| 6663825 | Method and apparatus for installing or replacing a furnace tap hole insert An apparatus for replacing a tap hole insert in a furnace includes a drill detachably mounted to a drive shaft in a boom arm of a utility machine with the drill adapted to remove the existing tap hole inserts to be replaced from outside of the furnace int... | 12/16/2003 |
| 6602069 | Plug members for steel furnaces A dart has a metal bar 1 passing through a ceramic, shaped, dart head 2 and then through a cylindrical ceramic dart stem 3. A sleeve 4 of a carbonaceous or reactive material is provided about the stem 3 or a layer of that material can be formed on the low... | 08/05/2003 |
| 6579491 | Insulated cover for torpedo cars and method of forming an insulated cover Improvements to an insulating cover for covering an opening in a torpedo car are disclosed. The insulating cover includes upper and lower wire mesh layers and an insulating layer positioned between the wire mesh layers. A support rod may be provided which... | 06/17/2003 |
| 6495093 | Device for closing a tap hole of a metallurgical vessel The invention relates to a device for closing a tap hole of a metallurgical vessel, in particular a converter, for the purpose of separating a molten metal and slag, having a slag stopper 1, which is situated outside the vessel, which provides an actuable... | 12/17/2002 |
| 6471911 | Method and device for sealing a tap hole in metallurgical containers In a method for sealing a tap opening in a metallurgical container a plug with a plug sleeve and a refractory flowable material is provided having a metal rod or pipe surrounded by a protective pipe connected thereto. The plug sleeve and the protective pi... | 10/29/2002 |
| 6299830 | Apparatus and method for tapping a furnace An apparatus and method for controlling the flow of molten material from a melt container. The apparatus includes a tubular insert sized for insertion into a tap hole formed in a sidewall of the melt container and a rod receivable within the insert. A coo... | 10/09/2001 |
| 6241941 | Device for avoiding contamination of the tapped steel by flush slag in a tiltable converter with improved composition of the material A device serves to seal the tap hole 10 of a tiltable converter with a sealing plug 8. The sealing plug 8 is characterised in particular by the composition of its material. Plastics material, preferably polystyrene foam in the shape of balls, serves there... | 06/05/2001 |
| 6153146 | Molten metal receptacle and slag control body transfer apparatus therefor A slag control body transfer and automatic release apparatus for carrying and releasing a slag control body and a molten metal receptacle adapted for subsequently guiding the slag control body are disclosed. The molten metal receptacle includes top and bo... | 11/28/2000 |
| 5972281 | Process and device to avoid contamination of tapping steel by flush slag with a tiltable converter This invention concerns a process for the reliable avoidance of slag contamination of the converter tapping steel by flush slag. In accordance with the invention a plastic, workable stopper made of fire-proof material containing silicic and oxidic compone... | 10/26/1999 |
| 5971233 | Method and apparatus for placing refractory sand in the discharge channel of a metallurgical vessel A method of placing a quantity of refractory sand in the discharge channel of a bottom discharging metallurgical vessel includes the steps of orienting the vessel whereby the channel is presented in a horizontal direction, and opening the channel. A gener... | 10/26/1999 |
| 5924325 | Lifting device, for example, for taphole drilling machines or splash cover manipulators In machines for opening of a tapping hole, for example in tapping hole boring machines, carriage holder (4) with boring bar and boring machine is swung up via four-bar linkage (5) by a lifting cylinder (10) out of an optionally obliquely sloped working or... | 07/20/1999 |
| 5914087 | Process and device for closing a tap hole A process for closing a tap hole in a metallurgical vessel at least partially filled with a metal melt includes bringing a compressible fire-resistant material to the moth of a tubular closing element, providing a medium that substantially prevents contac... | 06/22/1999 |
| 5882576 | Insulating cover for torpedo cars An insulating cover for covering an opening in a torpedo car is disclosed. The insulating cover includes an upper and lower wire mesh layer and an insulating layer positioned between the wire mesh layers. Tie devices secure the wire mesh layers together a... | 03/16/1999 |
| 5820815 | Cooled tapping device A cooled elongated, preferably threaded and, tapered, metallurgical taphole plug and a method for using it are described. The plug is inserted into a taphole to cause a plug of molten material to freeze in the taphole such that molten material flow within... | 10/13/1998 |
| 5695675 | Arrangement and method for connection of a stopper rod for a metallurgical vessel to a lifting device An arrangement for connecting an elongated stopper rod made of a refractory material for a metallurgical vessel to a lifting device for the stopper rod is provided. The arrangement includes a stopper rod having an upper front side and an internal longitud... | 12/09/1997 |
| 5643529 | Thermal insulation cover for molten metal transfer car A pre-formed rigid ceramic thermal insulating heat conservation cover is placed over and fitted into the opening of a hot liquid metal transfer car. The cover reduces thermal loss from the liquid metal by a non-metallic middle sheet encapsulated by an upp... | 07/01/1997 |
| 5451036 | Metallurgical dart and method of assembly A metallurgical dart includes an enlarged refractory head having a top, a bottom, and a central through hole extending from top to bottom of the head and lined with a metallic sleeve, with a portion of the lining sleeve projecting beyond the top and/or bo... | 09/19/1995 |
| 5421560 | Slag control apparatus for molten metal vessels A slag control shape is releasably mounted on a cover for a molten metal vessel. An actuator is connected to a slag control shape release member to move the release member from a first position engaged with the slag control shape to a second position dise... | 06/06/1995 |
| 5393038 | Method facilitating the introduction of a piercing rod into a taphole of a shaft furnace and special clamp for implementing this method A method is provided for facilitating the introduction of a piercing rod into a taphole previously closed by a taphole clay. The rod is gripped by a clamp which imparts to the rod a powerful axial force and an oscillatory movement about its longitudinal a... | 02/28/1995 |
| 5374036 | Metallurgical pouring vessels A method and product improve the positioning of loose anti-skulling material in the outlet nozzle zone of a metallurgical pouring vessel. The formation of skull in the outlet nozzle zone of a metallurgical pouring vessel is inhibited by positioning in the... | 12/20/1994 |
| 5372355 | Tap closure for a vacuum-induction melting and casting furnace An apparatus for opening and closing a bottom tap opening in a vacuum induction melting and casting furnace with a movable closing body, a plug rod for example, and a drive unit for the displacement of the closing body, the closing body being made of cera... | 12/13/1994 |
| 5333839 | Machine for boring a tap hole of a shaft furnace A machine for boring a tap hole of a shaft furnace is presented for use in conjunction with a lost-rod process. In this process, a metal rod is driven into a botting mass, before it has completely hardened, and is removed later for opening a tap hole. Dri... | 08/02/1994 |
| 5324010 | Stopper device A stopper device for use in molten-metal auto-pouring apparatus comprising an attachment part constructed to be releasably fixedly attached to a stopper device operator of such apparatus and a stopper support part adjustably connected to the attachment pa... | 06/28/1994 |
| 5284328 | Consumable charge box and assembly for recharging material into a furnace or vessel for producing molten metal Containers formed of consumable materials of compatible chemistry with the remelting of molten metal are disclosed, the individual containers being capable of retaining molten metal having impurities and the like therein until the same is solidified and r... | 02/08/1994 |
| 5249811 | Refractory joint packing for an annular gap in a metallurgical vessel An annular space is formed between the opening of a refractory lining in a metallurgical vessel and a shaped element to be joined to the refractory lining in the opening. A joint packing is provided to be packed in the annular space. The joint packing is ... | 10/05/1993 |
| 5249780 | Slag control shape release apparatus for molten metal vessels A slag control shape is releasably mounted on a cover for a molten metal vessel. An actuator is connected to a slag control shape release member to retract the release member from a first position engaged with the slag control shape to a second position s... | 10/05/1993 |
| 5164098 | Metal casting method and apparatus Metal casting apparatus comprises a casting container having an outlet nozzle in the bottom wall thereof, and an upright stopper within the container having a lower nose end thereto, the stopper being selectively movable between an operative position in w... | 11/17/1992 |
| 5151243 | Metallurgical vessel There is disclosed a metallurgical vessel, such as a steelworks converter, having a refractory brick lining and a probe opening passing a wall of the vessel for introducing a measuring and/or sampling probe. In order that the probe opening will get obstru... | 09/29/1992 |
| 5096165 | Metallurgical vessel with probe opening There is disclosed a metallurgical vessel, such as a steelworks converter, having a refractory brick lining and a probe opening passing a wall of the vessel for introducing a measuring and/or sampling probe. In order that the probe opening will get obstru... | 03/17/1992 |
| 5071043 | Stopper rod with an improved gas distribution The stopper rod for regulating the flow of a liquid has a body traversed by an axial channel and having at one end a porous nose fed with gas from the channel. The nose has a free space in the form of a hemisphere-shaped slot or lattice network communicat... | 12/10/1991 |
| 5037472 | Compartmented insulation blanket and method of use An insulating blanket is provided for dispensing an insulating particulate material onto the surface of a molten metal. This blanket comprises a bag containing the insulating particulate material, the bag having flattening means such that when the bag is ... | 08/06/1991 |
| 5024422 | One-piece stopper rod A one-piece refractory stopper rod has an axial bore formed therein for the introduction of inert gas into molten steel within a tundish. A metal bushing insert is copressed into the refractory stopper rod and has a threaded bore which is positioned coaxi... | 06/18/1991 |
| 4995594 | Slag stopping plug for tap holes of metal furnaces containing molten material A plug for temporarily closing a tap hole in a metal making furnace comprises a plug body insertable into the tap hole. The plug body comprises a ceramic blanket. A plurality of biasing springs are disposed inside the blanket and are held in a retracted c... | 02/26/1991 |
| 4984769 | Tap spout for metallurgical vessels and method of repairing A tap spout, particularly for allowing molten metal to be discharged from oxygen-steel converters, includes a replaceable unit including a tubular wear lining and a jointing layer secured thereto. An inner lining of the tap spout may thus be repaired with... | 01/15/1991 |
| 4968007 | Anti-slag, anti-vortex tundish measurement apparatus An anti-slag, anti-vortex tundish measurement apparatus for use in tundishes or other molten metal receptacles provides a measurement of the depth of the molten metal layer above the bottom of such receptacles. The apparatus includes a body mounted on a f... | 11/06/1990 |
| 4946083 | One-piece stopper rod A one-piece refractory stopper rod has an axial bore formed therein for the introduction of inert gas into molten steel within a tundish. A metal bushing insert is compressed into the refractory stopper rod and has a threaded bore which is positioned coax... | 08/07/1990 |
| 4913404 | Closures for metallurgical vessel pouring apertures The invention provides a closure member for a taphole or closure of a metal and slag containing vessel comprising a plug including a temperature reactive component rapidly expandable when subjected to heat, and a component softening under the effect of he... | 04/03/1990 |
