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Napoleon Bonaparte ; When told of the Robert Fulton steamboat
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| Number | Title | Issue Date |
| 7641168 | Mould for aluminothermic welding of railway rails, at least one of which is worn This present invention concerns a mold for the aluminothermic welding of railway rails. The compressible lining (58) used to seal the molding die in relation to leakages of the weld metal in the liquid state is limited to the parts of the contact surfaces ( | 01/05/2010 |
| 7240717 | Multiple ignition source exothermic reaction mold device A multiple ignition source exothermic reaction mold device. The mold device includes a crucible in a block with an open top for receiving exothermic reaction powder. A lid covering the open top has an opening therethrough. A receptacle in the lid is in communication... | 07/10/2007 |
| 6913717 | Method of constructing a rail track in which a concrete track slab is produced and rail track anchor members are inserted into the track slab A method of constructing a rail track in which a concrete track slab is produced and rail track anchor members are inserted in the track slab by an inserter system mobile along the route of the rail track includes the following steps: using a machine for continuousl... | 07/05/2005 |
| 6793003 | Exothermic welding mold conversion plug A weld mold assembly which includes a crucible section for exothermically reacting weld material to form a molten metal, a weld mold having a weld chamber with an opening for receiving the molten metal and a plurality of guide holes for receiving ground rods and wir... | 09/21/2004 |
| 6776386 | Lid for exothermic reaction welding mold A lid for an exothermic reaction mold device. The device includes an internal crucible in a block with an open top. The lid includes a lower face with an elongated opening therethrough. The lid also includes an upper face with a circular opening therethrough whereby... | 08/17/2004 |
| 6484792 | Single use transportable reaction crucible for a metallothermic welding portion A single use, transportable reaction crucible for a metallothermic welding portion is provided. A separate cylindrical reaction vessel is disposed in the cylindrical casing of a non-metallic crucible shell, which has a flat base and a lid. The reaction ve... | 11/26/2002 |
| 6227282 | Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region The invention relates to a process for the aluminothermic welding of rails, the aluminothermically produced steel being poured into a refractory mold surrounding the rail ends which are to be joined, and alloying additives being contacted with that part o... | 05/08/2001 |
| 6125913 | Process for the aluminothermic welding of rails with alloying of the weld metal in the rail head region The invention relates to a process for the aluminothermic welding of rails, the aluminothermically produced steel being poured into a refractory mold surrounding the rail ends which are to be joined, and alloying additives being contacted with that part o... | 10/03/2000 |
| 5829510 | Exothermic welding crucible and method A crucible for exothermic welding includes a frame and two semi-cylindrical or rectangular refractory blocks which include abutting planes through a reaction chamber and a sprue hole. One block is mounted for movement with respect to the other from an ali... | 11/03/1998 |
| 5820887 | Apparatus for slip form production of prestressed concrete railroad ties Pre-stressed concrete railroad ties are manufacture by the slip form process in the absence of mold members, other than the slip form itself. Tie casting occurs on a portable casting soffits between portable soffit anchored deadmen supporting the pre-stre... | 10/13/1998 |
| 5747074 | Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like Apparatus for the manufacturing of prestressed reinforced concrete railroad ties and the like in which the apparatus consists of an elongated spine or compression member which has no foundation but rather is independent of the supporting surface upon whic... | 05/05/1998 |
| 5716539 | Concrete railroad tie mold insert for rail fasteners An insert is described for attachment to a concrete railroad tie mold within an opening formed therein. The insert is adapted to releasably receive and position a railroad rail fastener with a head end positioned below the mold and an anchor part projecti... | 02/10/1998 |
| 5618476 | Process for slip form production of prestressed concrete railroad ties Pre-stressed concrete railroad ties are manufactured by the slip form process in the absence of mold members, other than the slip form itself. Tie casting occurs on portable casting soffits between portable soffit anchored deadmen supporting the pre-stres... | 04/08/1997 |
| 5531259 | Method for intermediate cast type welding of finely pearlitized rails Method for intermediate cast type welding of finely pearlitized rails by pouring steels produced by the Thermit fusion process into a casting mold, which surrounds the two rail ends 13 separated from each other by an intrinsic gap L1, wherein the actual r... | 07/02/1996 |
| 5515904 | Apparatus and process for aluminothermic welding The disclosure relates to a mold for aluminothermic welding without preheating of two metal parts, said mold being composed of two mold parts and two sets of cores and having internally employed a mold cavity and two mold channels with cross-sections of e... | 05/14/1996 |
| 5439629 | Method and apparatus for producing prefabricated components from pretensioned prestressed concrete A method for the manufacture of pretensioned prestressed concrete sleepers wherein, the tensioning wires are taken directly from one or more rolls of wire and are introduced in a longitudinal feed into a tensioning frame, and the tensioning wires (5) are ... | 08/08/1995 |
| 5419484 | Apparatus and process for aluminothermic welding The disclosure relates to a multi-part mold for aluminothermic welding without preheating of metal parts, said mold having internally employed a welding cavity and two rising channels with variable cross-sections along their height, the central part of we... | 05/30/1995 |
| 5215139 | Method and mold for aluminothermic welding of rails In forming an aluminothermic weld between adjoining rail ends, a sand mold is arranged around the rail ends disposed in spaced relation. The sand mold is formed at least in part of silica sand. The surface of the mold in contact with the rail ends and enc... | 06/01/1993 |
| 5151202 | Aluminothermic welding device crucible and crucible cover for use therewith An aluminothermic welding device. The device, which is for the butt welding of two metal members such as railroad rails, comprises a mould and a crucible the respective upper and lower faces of which are so formed with mutually complementary respective de... | 09/29/1992 |
| 5124093 | Process for the production of concrete switch cross ties In casings for switch cross ties, the bottom plate 3 serves at the same time as a pattern for the position of the construction components. As a rule, a new casing is prepared for each series of cross-ties type. In small series with various positions of th... | 06/23/1992 |
| 4970773 | Method of and apparatus for locating operational surfaces on a track electromagnetically levitated vehicles On a track for electromagnetically levitated vehicles, to adjust and secure side guide rails on a beam-like support member forming the track, after stators are adjusted and fixed to the support member, the side guide rails are held in position relative to... | 11/20/1990 |
| 4952129 | Plant to manufacture elongated elements of prestressed reinforced concrete A plant to manufacture elongated concrete elements, particularly railway sleepers of prestressed reinforced concrete. In the plant according to the invention, the forms for the production of said elements are supported on carriages sliding along parallel ... | 08/28/1990 |
| 4948089 | Concrete mold with arrangement for mounting tubular components For the production of cross ties for switches, made of concrete in a prestressing fixture, a recoverable device for the emplacement of tubular components is built into the bottom of the concrete form for the tie, which comprises a pin and a nipple inserte... | 08/14/1990 |
| 4875657 | Rail repairing method and apparatus A mould for the repairing of a damaged portion of a rail head, the mould includes a pair of mould halves which engage the longitudinal sides of the rail so as to provide a cavity above the damaged portion of the rail, molten metal is subsequently delivere... | 10/24/1989 |
| 4854028 | Method of locating operational surfaces of a track for electromagnetically levitated vehicles On a track for electromagnetically levitated vehicles, side guide rails are positioned on and secured to a beam-like support member forming the track by an apparatus made up of a transportation frame extending in the long direction of the support member a... | 08/08/1989 |
| 4824627 | Method of making a molded plastic product The method of the present invention involves taking a comminuted mixture of waste plastic materials, feeding the mixture into a screw extruder capable of applying heat and pressure to the mixture; using the screw extruder to heat the mixture to a temperat... | 04/25/1989 |
| 4812113 | Mold assembly for pre-stressed concrete railroad ties Prestressed concrete railroad ties are formed in molds which are supported by existing track near the area where they are to be installed. Each mold will form a number of ties. Reinforcing strands are located within a plurality of longitudinally spaced mo... | 03/14/1989 |
| 4781875 | Manufacture of pre-stressed concrete railroad ties Prestressed concrete railroad ties are formed in molds which are supported by existing track near the area where they are to be installed. Each mold will form a number of ties. Reinforcing strands are located within a plurality of longitudinally spaced mo... | 11/01/1988 |
| 4737333 | Method for manufacturing concrete railway sleepers Method includes placement of rail-clamps in a concrete mould, while securing elements thereof on the outside of the mould. Concrete reinforcement members are placed on the clamps. A connecting rod is introduced through a mould opening and the mould therea... | 04/12/1988 |
| 4735562 | Apparatus for casting and inverting concrete products An apparatus and method for making a plurality of formed concrete products. The apparatus comprises a platform having a mold tray situated thereon, wherein the platform has a built in vibrator and the mold tray is attached to a hydraulic lift system. The ... | 04/05/1988 |
| 4717114 | Concrete sleeper mould In a bank of sleeper moulds wherein the moulds lie side by side and contain shoulder receiving apertures which locate shoulders during pouring, the improvements including a rocker shaft journalled for rotation with respect to the moulds and having retaini... | 01/05/1988 |
| 4708611 | Apparatus for casting and inverting concrete products An apparatus for making a plurality of formed concrete products. The apparatus comprises a platform having a series of mold cavities, wherein the platform is attached to a vibrator and a hydraulic lift system. The hydraulic lift system lifts and inverts t... | 11/24/1987 |
| 4666123 | Fixture for making railroad ties The bottom of a concrete sleeper mold is formed with an opening, through which a rail fastening shoulder can be inserted. A pair of rotatable pieces are disposed beneath the mold on the opposite sides of the opening such that they face each other. These r... | 05/19/1987 |
| 4616395 | Railroad track fixation method and apparatus A method and apparatus for laying a railroad track includes laying, in tandem, a series of pre-cast concrete slabs on a prepared track bed, the slabs being isolated from the bed, and from each other, by rubber isolation pads, and the slabs having cavities... | 10/14/1986 |
| 4605053 | Art of mold welding This invention relates to an improvement in the process of mold welding two metal parts together having respective base sections, which includes enclosing the end sections of said metal parts in aligned end-to-end relation in a mold having an entrance gat... | 08/12/1986 |
| 4588126 | Metal element for fastening a rail to a concrete tie A metal element for securing rails to cast concrete railroad ties by use of Pandrol clips includes a transverse plate extending between lugs of the metal element, and which prevents concrete admixture from filling a socket provided within the metal elemen... | 05/13/1986 |
| 4526739 | Process and apparatus for precasting prestressed-concrete workpieces Workpieces of prestressed concrete, specifically railroad ties, are molded in a form having its bottom covered with several transversely separated templates whose outline corresponds to that of respective ties to be produced; the form is longitudinally tr... | 07/02/1985 |
| 4522367 | Matrix array for manufacturing concrete sleeper blocks A method of manufacturing railway switch-point concrete sleeper blocks of varying lengths and having different number of attachment means located in mutually different positions for the attachment of rails. A plurality of steel matrix plates 102 whose res... | 06/11/1985 |
| 4495127 | Method of manufacturing concrete sleeper blocks A method of manufacturing railway switchpoint concrete sleeper blocks of varying lengths and having different number of attachment means located in mutually different positions for the attachment of rails. A plurality of steel matrix plates 102 whose resp... | 01/22/1985 |
| 4421710 | Method, devices, mold bearing structures and installations for improving the efficiency of processes for the manufacture of prestressed concrete products Some self-supporting screens for closing the mold head, some self-supporting separating screens, group positioning devices and group tensioning devices, are used. A series of novel installations for the shock heat treatment, stripping and removal of the p... | 12/20/1983 |
