WO2004097114B1 - USE OF K_SPIRAL, BEND, JOG, AND WIGGLE SHAPES IN DESIGN OF RAILROAD TRACK TURNOUTS AND CROSSOVERS - Google Patents
USE OF K_SPIRAL, BEND, JOG, AND WIGGLE SHAPES IN DESIGN OF RAILROAD TRACK TURNOUTS AND CROSSOVERSInfo
- Publication number
- WO2004097114B1 WO2004097114B1 PCT/US2004/012582 US2004012582W WO2004097114B1 WO 2004097114 B1 WO2004097114 B1 WO 2004097114B1 US 2004012582 W US2004012582 W US 2004012582W WO 2004097114 B1 WO2004097114 B1 WO 2004097114B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- railroad track
- shapes
- shape
- track
- turnout
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B7/00—Switches; Crossings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Railway Tracks (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Railroad track transition curves having shapes referred to as K_spirals, Bends, Jogs, and Wiggles are suitable for use in various situations where railroad track transition curves are needed and have good dynamic characteristics. Such shapes can be used for design of railroad track turnouts and crossovers. In order for such shapes to be incorporated into turnouts and crossovers, rail switch arrangements are provided that can accommodate the superelevation profiles on which the favorable dynamic characteristics of those shapes depend. Such shapes can be used for turnout and crossover design in conjunction with two mechanical switch arrangements that are themselves well known, namely the transfer table and stub switch arrangements, and with two switch arrangements that are variants of the commonly used movable point arrangement, namely an arrangement in which the through point rail is wide over its whole length and an arrangement using a through point rail of relatively conventional taper and width but one that is bowed downward between its point and the frog.
Claims
1. A configuration for a curved path of a railroad track turnout comprising a combination of a defined superelevation as a function of distance along a turnout track and an inferred horizontal curvature as a function of distance along the turnout track such that for a vehicle traveling at a selected speed a component of gravitational acceleration in a plane of the track is approximately equal at any distance along the track to a component of centripetal acceleration in the plane of the track and wherein the curved path has a shape selected from the group of shapes consisting essentially of a K-spiral, a Bend, one half of a Jog, and part of a Wiggle.
2. A railroad track turnout configuration including two railroad track turnouts, each having the railroad track turnout configuration according to claim 1, wherein the two track turnouts are connected to form a crossover between two adjacent railroad tracks.
3. A railroad track turnout configuration according to claim 2 wherein a crossing route that passes through the two turnouts has an overall geometrical shape at least approximating a
Jog.
4. A railroad track turnout configuration according to claim 1 wherein the overall shape and superelevation of a path having horizontal curvature has an overall geometrical shape which at least approximates at least a part of the shape of a K_spiral.
5. A railroad track turnout configuration according to claim 1 wherein the overall shape and superelevation of a path having horizontal curvature has an overall geometrical shape which at least approximates at least a part of the shape of a Bend.
6. A railroad track turnout configuration according to claim 1 wherein the overall shape and superelevation of a path having horizontal curvature has an overall geometrical shape which at least approximates at least a part of the shape of a Jog.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/553,889 US20060202047A1 (en) | 2003-04-25 | 2004-04-23 | Use of k-spiral, bend, jog, and wiggle shapes in design of railroad track turnouts and crossovers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US46540703P | 2003-04-25 | 2003-04-25 | |
| US60/465,407 | 2003-04-25 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2004097114A2 WO2004097114A2 (en) | 2004-11-11 |
| WO2004097114A3 WO2004097114A3 (en) | 2005-03-17 |
| WO2004097114B1 true WO2004097114B1 (en) | 2005-04-21 |
Family
ID=33418238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2004/012582 Ceased WO2004097114A2 (en) | 2003-04-25 | 2004-04-23 | USE OF K_SPIRAL, BEND, JOG, AND WIGGLE SHAPES IN DESIGN OF RAILROAD TRACK TURNOUTS AND CROSSOVERS |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20060202047A1 (en) |
| WO (1) | WO2004097114A2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005104789A2 (en) | 2004-04-28 | 2005-11-10 | Klauder Louis T Jr | Method for maintaining geometry of ballasted railroad track |
| US8424813B1 (en) | 2011-01-25 | 2013-04-23 | Cleveland Track Material, Inc. | Elevated frog and rail track assembly |
| US8556217B1 (en) | 2011-05-24 | 2013-10-15 | Cleveland Track Material, Inc. | Elevated frog and rail crossing track assembly |
| US9340376B2 (en) * | 2013-08-22 | 2016-05-17 | Toyota Motor Engineering & Manufacturing North America, Inc. | Apparatus and system for transferring carts |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3732827A (en) * | 1971-03-17 | 1973-05-15 | Jackson Vibrators | Railroad track working machine |
| JPS49135305A (en) * | 1973-04-28 | 1974-12-26 | ||
| US3939777A (en) * | 1974-03-04 | 1976-02-24 | Moran Raymond D | Mobile trackway |
| AT369068B (en) * | 1978-11-30 | 1982-12-10 | Plasser Bahnbaumasch Franz | MOBILE TRACK MACHINING MACHINE FOR SWITCHES, CROSSINGS AND TRACKED TRACKS |
| DE3446951C1 (en) * | 1984-12-21 | 1986-05-07 | Georg 8000 München Pötzsch | Track guidance for a passenger receiving vehicle of an elevated store |
| US4860666A (en) * | 1988-02-19 | 1989-08-29 | Utdc Inc. | Multi-axle, steered articulated railway vehicle with compensation for transitional spirals |
| US5012413A (en) * | 1988-07-27 | 1991-04-30 | Pandrol Jackson, Inc. | Railroad track curve lining apparatus and method |
| US5791254A (en) * | 1995-11-03 | 1998-08-11 | Meteoro Amusement Corporation | Full range of motion roller coaster |
| US5988519A (en) * | 1997-11-18 | 1999-11-23 | Pacific International Pipe Enterprises, Inc. | Precast concrete curved grade crossing with restraining rail |
| JP2000144603A (en) * | 1998-11-13 | 2000-05-26 | West Japan Railway Co | Lower part structure of turnout |
| US6347265B1 (en) * | 1999-06-15 | 2002-02-12 | Andian Technologies Ltd. | Railroad track geometry defect detector |
-
2004
- 2004-04-23 WO PCT/US2004/012582 patent/WO2004097114A2/en not_active Ceased
- 2004-04-23 US US10/553,889 patent/US20060202047A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20060202047A1 (en) | 2006-09-14 |
| WO2004097114A2 (en) | 2004-11-11 |
| WO2004097114A3 (en) | 2005-03-17 |
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Legal Events
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| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| B | Later publication of amended claims |
Effective date: 20050304 |
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