Class 246/468 - Frogs

Subclass of Class 246 - Railway switches and signals
Definition: Subject matter having means placed at the intersection of
No. of patents: 41
Last issue date: 05/27/2008

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Number	Title	Issue Date
7377471	Method and system for opening and securing a railroad frog A method and system are provided for opening and securing a railroad frog. The system is provided with a body member and a plurality of attachment members, which are selectively securable with the body member. The attachment members are structurally configured to se...	05/27/2008
7309050	Grooved rail core piece A grooved rail core piece including a core piece intersection area formed by intersecting grooves as an overflow area. The core piece has two construction profiles with interconnected outer fishing surfaces (22,24) extending in a longitudinal direction. In or...	12/18/2007
7261259	Flared railway frog An improved railway frog having opposite side flangeways, each flangeway comprising a channel with an ending width greater than a corresponding channel width of a conventional frog. The improved frog channel further comprising a first segment and a second segment. T...	08/28/2007
7173387	Arrangement having at least one long-stator linear motor, for operating magnetically levitated vehicles The invention relates to an arrangement for operating a magnetically levitated vehicle by means of an arrangement having at least one long-stator linear motor. The linear motors are sub-divided, longitudinally of a track, into individual motor regions (A) in each of...	02/06/2007
7168663	Point machine for movable frogs In a switch actuator for movable frogs (1), comprising at least one cylinder piston unit (5) having a defined preset piston stroke, the cylinder piston unit (5) is connected with bearings (6) capable of being displaced in the axial direct...	01/30/2007
7121513	Cross frog for a set of track points, provided with an end of position-retaining device A rail switch frog (1) includes a movable frog point (5) slidingly guided within a base frame (2), which frog point is movable into abutment on the wing rails (6, 7) and laterally supported in its abutment positions by supporting elements...	10/17/2006
7083149	Cross frog A cross frog of a grooved rail junction plate having a cross frog tip movably arranged on a sliding plate, wing rails running along the same, as well as auxiliary rails that transition into connecting bars, which delimit a respective groove with an allocated section...	08/01/2006
6994299	Railroad crossing apparatus having improved rail connection and improved flangeway floor geometry and method incorporating the same An improved railroad frog, and method incorporating the same, for facilitating the intersection of rail lines in a more efficient, effective, and durable manner. In one aspect the invention is a railroad frog apparatus comprising: a body having flangeways that inter...	02/07/2006
6786459	Concrete railroad tie turnout assembly Concrete railroad ties are made having steel plates cast directly into the concrete railroad tie so that the top surface of each steel plate is even with the top surface of the concrete railroad tie. Fasteners for the rails can be welded to anywhere within the steel...	09/07/2004
6758445	Replaceable point frog A railway frog insert assembly comprises a casting defining the heel and toe sections of a frog. The portion of the casting intermediate the heel and toe sections consists of an integral spine extending between the heel and toe sections. The height of the spine is b...	07/06/2004
6543728	Cross frog The invention relates to a cross frog (10) for points and crossings, comprising a cross frog tip (14) and wing rails (16, 18) and running rails (20, 22) situated either side of this point, each with a basic course (38) aligned with a main or secondary tra...	04/08/2003
6340140	Railroad frog for switch points and crossings The rigid frog for switch points and crossings with two wing rails (1, 2) and a frog point (3, 6, 4, 5) arranged therebetween, which forms with the wing rails switch openings (11) that run at an acute angle relative to each other, is characterized in that...	01/22/2002
6266866	Frog insert and assembly and method for making frog assembly An improved cast insert for a railway frog has two extensions extending in substantially the same direction away from the body portion of the casting and the end of each of the extensions has a cross sectional profile corresponding to the profile of the h...	07/31/2001
6177205	Process for producing a permanent way component and such a component A process for manufacture of a railroad track part, in particular a large points part, with rail parts such as a frog point and connecting rails, and the track part obtained. The track part is made of materials of differing composition, one of which is a ...	01/23/2001
6138958	Spring rail frog A spring rail frog includes a movable wing rail, a fixed wing rail and a nose rail. The movable wing rail is provided with a bendable portion and a non-bendable portion. The bendable portion can include any or all of a reduced width base portion, a reduce...	10/31/2000
6025702	Signal processing unit for a trolley pole switch controller A signal processing unit for a controller of a trolley pole switch is disclosed. The trolley pole switch switches the path of travel that an energy collector takes through the switch at a junction of catenaries at which a turn catenary and a straight cate...	02/15/2000
5845881	Railroad trackwork intersections A railroad trackwork intersection assembly such as a crossing intersection or a turnout intersection is provided with at least one flange-bearing frog subassembly which has railcar wheel flangeways of uniform depth throughout the frog planform that co-ope...	12/08/1998
5810298	Railroad spring frog assembly An improved railroad trackwork spring wing frog assembly is provided with multiple rail-closer subassemblies, preferably of the nested and counter-wound compression spring-type, that co-operate with the assembly spring wing rail, and that are laterally sp...	09/22/1998
5806810	Spring rail frog having switchable magnet for holding wing rail open A railroad frog assembly is provided with a switched magnet that immediately retains a frog flexible wing rail in its open position in response to a railcar wheel passing through the frog assembly, and that delayably releases the frog flexible wing rail f...	09/15/1998
5782437	Spring rail frog having bendable rail with modified cross-section A spring rail frog is disclosed that includes a movable wing rail, a fixed wing rail and a nose rail. The movable wing rail is provided with a bendable portion and a non-bendable portion. The bendable portion can include any or all of a reduced width base...	07/21/1998
5740025	Electronic controller for a trolley pole switch mechanism An electronic controller for controlling a trolley pole switch is disclosed. The trolley pole switch switches the path of travel that an energy collector of a trolley pole takes through the trolley pole switch at a junction of power conduits diverging fro...	04/14/1998
5691888	Power controlling unit for a trolley pole switch controller A power controlling unit for use with a radio board of a trolley pole switch controller is disclosed. The trolley pole switch has at least one frog for switching the path of travel that an energy collector takes through a junction of catenaries. The power...	11/25/1997
5598993	Pseudo heavy point frog assembly A railroad trackwork frog assembly is provided with a pair of wing rail components, with a centrally positioned body component comprising an integrally formed V-shaped point element having a pair of gauge lines, an integrally formed pair of wing elements ...	02/04/1997
5560571	Reversible wing insert frog A railroad trackwork railbound frog assembly having a toe point element is provided with a pair of spaced-apart wing rail elements each having a notch recess feature, a pair of reversible and interchangeable spaced-apart wing rail insert elements, usually...	10/01/1996
5544848	Railroad spring frog An improved railroad trackwork frog is provided with a relatively fixed rigid wing rail, a relatively movable spring wing rail, a base plate, and at least one roller outrigger and ramp plate assembly which is attached to the spring wing rail and to the ba...	08/13/1996
5456430	Frog with interchangeable insert An improved frog is provided with an interchangeable insert for a railroad turnout, such as a frog or crossing. The frog has a new modular interchangeable insert, which permits easy changing of worn pieces in situ. The insert is a solid, unitary piece of ...	10/10/1995
5393019	Railroad turnout frog with continuous running surface An improved railroad turnout frog with a continuous running surface is provided. The frog provides for continuous running of the rolling stock and includes a mobile point with a triangular shape. The mobile point is located in a portion of the frog which ...	02/28/1995
5312075	Railroad frog A railbound manganese frog assembly having ramps and grooves adapted to receive the false flange formed on the rim of a worn railroad car wheel to prevent the flange from impacting components of the frog assembly....	05/17/1994
5184791	Frog tip that can be shifted relative to the wing rails A frog tip that can be moved relative to the wing rail is proposed, in which the contact surfaces each curve away from the frog tip and the wing rails in a lengthwise direction....	02/09/1993
5133522	Process for producing a crossing frog with a moving point A process for producing a crossing frog with moving point (1) for very long railway switches incorporated in long welded rails. The frog also comprises a cradle (2) in two elements (3 and 4), one molded and the other not molded. The method comprises weldi...	07/28/1992
5082214	Crossing frog with a moving point A crossing frog with moving point (1) for very long railway switches incorporated in long welded rails, comprises a cradle (2) in two elements (3 and 4), one molded and the other not molded. One element (3) is of molded steel, of which at least the two en...	01/21/1992
4982919	Reversing device for movable parts of a railway switch In a reversing device for the movable parts of a railway switch, in which movable wing rails are, in their end positions, alternately engaging the frog and are supported in their engaging positions by supporting rods extending in the longitudinal directio...	01/08/1991
4624428	Spring rail frog A railroad spring frog assembly for trackwork installations includes a rigid rail and a flexible spring wing rail. The flexible spring wing rail is rigidly affixed between one end which engages a wing point rail and the other end which connects to a closu...	11/25/1986
4589617	Frog for switches This invention relates to an improvement in a frog for switches, in particular for rapid transit switches, with a junction rail mounted in a rotatable manner and adapted to close a gap between pairs of rails of straight or branch track, the improvement co...	05/20/1986
4516504	Cross-over track structure for wheeled pallets A conveying and storage system for wheeled pallets has tracks each formed by a pair of generally parallel rails. The pallet has grooved wheels at one side for riding on the upper edge of one rail and a roller on the other side for riding on the upper edge...	05/14/1985
4469299	Railway turnouts According to the invention a railway turnout comprises two wing rails and a point, carried on a frog, which includes a nose, the running surface of which is substantially co-planar with the running surfaces of the rail of the turnout, the wing rails being...	09/04/1984
4362282	Railroad frogs Railbound frogs for track work installation and so constructed as to strengthen the heel extension, to resist movement of the running rails away from the heel end of the frog and to prevent damage due to what is known as a "false flange" on the car wheel....	12/07/1982
4342593	Castings Ferrous metal casting of manganese steel susceptible to austenization to develop minimum yield strength of about 75,000 psi and elongation of about 30% min. consisting essentially of: C--0.85 Mn--14 Si--0.6 Cr--4 Ni--3.6 V--0.4 balance essentially iron except ...	08/03/1982
4283030	Railway switch heel block Apparatus for providing the proper spread between the switch rail and stock rail in a railway switch which includes a heel block of unique design which assures accurate alignment of the parts of the switch heel block....	08/11/1981
4081162	Railroad frogs Wheel loads on the running surfaces of a frog point and its (cast) integral wings are distributed to the ties by a bottom wall boxing in the side walls which support those running surfaces and by strategically located center ribs....	03/28/1978

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Class 246/468 - Frogs