Rail-base Seats Patents (Class 238/306)
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Patent number: 8413910Abstract: The invention provides a base plate, and a fastener equipped with such a base plate, whose weight is minimized and whose stiffness is optimised on the one hand and which is suitable for being supported on an elastic intermediate layer on the other hand. To this end, a base plate according to the invention for fastening a rail to a fixed bottom support has, the base plate being made of a plastics material and a stiffening structure which is formed by ribs and by depressions present between the ribs being formed or molded in the underside of the base plate, which underside is associated with the fixed bottom support, depressions of the stiffening structure being closed off, in accordance with the invention, by a filling material.Type: GrantFiled: October 28, 2009Date of Patent: April 9, 2013Assignee: Vossloh-Werke GmbHInventors: Winfried Bösterling, Lutz Rademacher, Adrian Bednarczyk, André Hunold
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Patent number: 7080791Abstract: An assembly for supporting a railroad rail on a tie includes an abrasion plate arranged to be positioned on a tie, and a pad disposed on the abrasion plate and adapted to receive the rail. The pad and plate have mating depressions and buttons arranged in complementary patterns that provides means of interlocking the two components to resist migration in both longitudinal and lateral directions. Preferably the depressions are larger than the buttons to allow some play. The two elements may be attached to each other prior to transportation by a combination of a projection on one and a capturing hole in the other. The projection may be a stake having an enlarged head. The plate may be secured to the tie by an epoxy and may have irregularities on the bottom to be gripped by the epoxy. A seal may also be provided around the supports for the rail clips to keep sand and other extraneous matter from the interface between the plate and the tie. The seal may be provided on the plate or the pad.Type: GrantFiled: August 29, 2003Date of Patent: July 25, 2006Assignee: Pandrol LimitedInventors: William Hugo Geissele, Frank Howard Coats
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Patent number: 6974087Abstract: A tie plate is provided for securing a rail to a railway tie. The tie plate has a base with a tie face opposite a rail face, opposite end faces extending between the tie and the rail faces, a gauge side opposite a field side with said gauge and field sides extending between the opposite end faces and the rail and tie faces. A rail support section runs across the rail face between the opposite end faces and along the gauge and field sides. The tie plate further has a respective clip hold down housing adjacent the rail support section on the field side and the gauge side, each clip hold down housing having a rail abutting face proximal the rail support section and a longitudinally extending receptacle for receiving a spring clip. A respective rail locating shoulder extends from the rail face on either side of the rail support section. Locating ridges extend from the tie face for embedding into a tie.Type: GrantFiled: January 28, 2003Date of Patent: December 13, 2005Assignee: MSR Rail Products Inc.Inventor: John Faichney
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Patent number: 6471139Abstract: The invention relates to a rail arrangement for a rail superstucture such as a fixed railroad, comprising an elastic intermediate plate (3) which is located between the rail foot and a hard support (6) in the form of a concrete tie and has two through holes for the screws (7) to fasten the rails. For series mounting, which is the solution of choice, the elastic intermediate plate (3) is combined with an elastic intermediate layer (1) in such a way that the additional intermediate layer rests above the intermediate plate directly below the rail foot, whereby the intermediate layer (1) is separated from the intermediate plate (3) by a metal base plate (2) which serves to fasten the rail.Type: GrantFiled: December 14, 1999Date of Patent: October 29, 2002Assignee: Phoenix AktiengesellschaftInventors: Michael Bruder, Michail Rabkin, Karl-Heinz Krause, Edgar Böhm, Gerhard Merkmann, Peter Schwob, Klaus Tübel
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Patent number: 5628454Abstract: A sole, ribbed or slide chair plate for a foot of a railroad rail provided with two spaced flat bearing surfaces between which is a concave surface allowing for non tipping of the rail when in place if the bottom of the rail has a convex surface and a shim fitting on top of the plate having a top surface composed of two spaced flat bearing surfaces between which is a concave surface.Type: GrantFiled: April 3, 1996Date of Patent: May 13, 1997Assignee: Schwihag GmbHInventors: Armin Heim, Otto Morgenschweis
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Patent number: 5203502Abstract: A rail fastening of the kind in which a rail, having a field edge and a gauge edge is fastened to a rail tie by a rail seat including a rail, a rail tie and a rail pad between the tie and the rail, a pair of rail clamp supports secured to the tie on either side of the rail and abutting the rail pad, and a rail clamp associated with each rail clamp support and each clamp having a portion secured in the clamp support and a portion bearing down on the rail flange. The rail pad electrically and dynamically insulates the rail tie from the rail and there is a rib provided on the field edge portion of the rail pad to reduce the intensity of the pressure on the pad under the field edge of the rail.Type: GrantFiled: May 29, 1992Date of Patent: April 20, 1993Assignee: McKay Australia LimitedInventor: Hartley F. Young
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Patent number: 5123596Abstract: A bolted rail fastening system comprising a rail mounted in a recessed area of a tie plate with the tie plate being secured to a cross-tie by means of coach screws extending downwardly therethrough. The rail is maintained in the recessed area by a pair of clips positioned at each side of the rail which will remain in position even if the nuts associated therewith become loose.Type: GrantFiled: July 29, 1991Date of Patent: June 23, 1992Inventors: George K. Fisher, Thomas L. Wallace, William C. Thompson
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Patent number: 4971247Abstract: A pad has a base portion, which lies on a foundation and on which a flange of a railway rail lies, and upstanding side portions extending upwardly from opposite sides of the base portion and formed with a recess in which lies a part of a rail clip. The pad may have sideways-extending portions for projecting on opposite sides of a clip-retaining member and it may also have projecting islands, possibly chevron-shaped, on one face or on both faces. The base portion may be one member made of soft material and this may be fixed to a separate member made of harder material which is formed with the side portions and the recess.Type: GrantFiled: October 19, 1988Date of Patent: November 20, 1990Assignee: Pandrol LimitedInventor: Lance Harkus
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Patent number: 4382547Abstract: A railroad plate and connectable shim are disclosed for fastening railroad tracks over ground having a flat or raised topography in an economically feasible manner. The instant system provides a base plate with a sloping grooved channel for reception of the lower flange of a rail to be held in place in combination with a trapezoidal shim to insure the proper cant of the rail over the various topographical areas of the country. The instant base plate, trapezoidal shim, rail and railroad tie are all fastened via a set of screws which are angled or toed-in towards the center of gravity of the rail. Stepped washers, each possessing a thickened portion, are provided between the bottom of the screw head and the upper shoulder surface of the lower flanges, both inside and outside the central vertical portion of the rail. The washers are omitted in securing back assemblies to the ties where joints are formed between the ends of adjacent rails.Type: GrantFiled: March 18, 1981Date of Patent: May 10, 1983Inventor: Albert A. Phillips
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Patent number: 4260105Abstract: A railroad plate and connectable shim is disclosed for fastening railroad tracks over ground having a flat or raised topography in an economically feasible manner. The instant system provides a base plate with a sloping grooved channel for reception of the lower flange of a rail to be held in place in combination with a trapezoidal shim to insure the proper cant of the rail over the various topographical areas of the country. The instant base plate, trapezoidal shim, rail and railroad tie are all fastened via a set of screws which are angled towards the center of gravity of the rail.Type: GrantFiled: March 4, 1980Date of Patent: April 7, 1981Inventor: Albert A. Phillips
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Patent number: 4175700Abstract: A rail pad made of substantially rigid electrically insulating material which is chosen to by yieldable to a predetermined extent, the pad having upstanding rail locating formations on its rail engaging face and oppositely directed pad locating formations on its sleeper engaging face to locate the pad relative to a supporting sleeper, the pad being provided with a series of recesses in its sleeper engaging face wherein the unrecessed area of the face is calculated to be capable of carrying the required load.Type: GrantFiled: June 10, 1977Date of Patent: November 27, 1979Inventor: Erich F. Gehrke
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Patent number: 4155507Abstract: A tie plate for mounting railroad track rails on track ties in which the tie plate is formed from a corrosion resistant resilient polymer of dry self-lubricating characteristics, in which the tie plate has its upper side shaped to define along either side of the plate bearing surface to be engaged by the rail base a pair of flexible ridges each defining a flexible lip, with such lips opposing each other and terminating in a marginal edge projecting over the tie plate bearing surface. The tie plate ridges each define under their respective lips an upstanding side wall, which side walls oppose each other and are spaced apart and of a height to closely receive the rail base side edges therebetween when the rail is applied to the tie plate.Type: GrantFiled: December 19, 1977Date of Patent: May 22, 1979Assignee: Holland CompanyInventors: Osvaldo F. Chierici, Richard F. Murphy
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Patent number: 4141500Abstract: A railway tie plate has at least one rib to locate a railway rail and two arches under which parts of rail clips can be driven parallel to the rib. It can be made by deformation of a conventional tie plate designed for use with fastening devices for holding the rail on to the tie plate other than rail clips which are driven parallel to the rail.Type: GrantFiled: June 9, 1977Date of Patent: February 27, 1979Assignee: Pandrol LimitedInventor: Nelson A. Gragnani
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Patent number: RE32894Abstract: A railway tie plate has at least one rib to locate a railway rail and two arches under which parts of rail clips can be driven parallel to the rib. It can be made by deformation of a conventional tie plate designed for use with fastening devices for holding the rail on to the tie plate other than rail clips which are driven parallel to the rail.Type: GrantFiled: November 6, 1980Date of Patent: March 28, 1989Assignee: Pandrol LimitedInventor: Nelson A. Gragnami