US3756508A - Combined running and guard rail - Google Patents

Combined running and guard rail Download PDF

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Publication number
US3756508A
US3756508A US00222165A US3756508DA US3756508A US 3756508 A US3756508 A US 3756508A US 00222165 A US00222165 A US 00222165A US 3756508D A US3756508D A US 3756508DA US 3756508 A US3756508 A US 3756508A
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United States
Prior art keywords
rail
running
guard
wheel
combined
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Expired - Lifetime
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US00222165A
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English (en)
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S Bingham
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Individual
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Individual
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/02—Rails
    • E01B5/04—Grooved rails
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B5/00—Rails; Guard rails; Distance-keeping means for them
    • E01B5/18—Guard rails; Connecting, fastening or adjusting means therefor

Definitions

  • ABSTRACT A combined running and guard rail for high speed rail ground transportation having a center running rail and inner and outer guard rails on opposite sides of the running rail and vertically overlapping and normally spaced from ends of a flanged wheel on the running rail.
  • the guard rails and those of the counterpart rail at the opposite side of the track cooperate to prevent the flange of either of a pair of axleconnected wheelsfrom riding up on the adjoining running rail under excessive lateral forces developed at high speeds.
  • Grooves in the combined rail between the running and guard rails limit contact of the wheel to the running rail in normal operation over the range of permissive wear of the running rail.
  • the primary object of the present invention is to provide an improved combined running and guard rail having guard rails hold the both sides of the running rail for so limiting lateral movement of a wheel in either direction as to hold wheel against derailment from the running rail and in the case of a pair of axle-connected wheels distributing lateral forces thereon between both rails of a track.
  • Another object of the invention is to providean improved combined running and guard rail wherein guard rails at opposite sides of the running rail vertically overlap and are normally spaced from opposite ends of a wheel on the running rail for engagement therewith only in limiting lateral movement and upwardly opening pockets at opposite sides of the running rail normally limit contact between a wheel and the combined rail to the running rail over the range of permissive wear of the running rail.
  • FIG. 1 is a vertical cross-sectional view of a preferred embodiment of the improved combined running and guard rails of the present invention showing the normal relation between the guard rails and a wheel on the running rail, and
  • FIG. 2 is an elevational view on a smaller scale taken across a track formed of a counterpart pair of the combined rail of FIG. 1 and showing thereon a pair of axleconnected wheels.
  • the improved combined running and guard rail of the present invention designated as l, is particularly designed to replace standard or conventional I-cross-section rails in track used for high speed service.
  • the improved combined rail 1 has a central or middle running rail 2 and outboard or outer and inboard or inner guard rails 3 and 4, respectively, on opposite sides of and laterally spaced from the running rail.
  • the preferred combined rail 1 for the intended use for high speed ground transportation, is adapted for conventional laying or mounting on a suitable roadbed on ties (not shown) and for the purpose includes a base mounting flange 5 and a vertical supporting web 6 integral with and upstanding from the base flange and supporting or mounting thereabove the running guard rails 2, 3 and 4.
  • the running rail 2 has a head 7 integral with and surmounting and overlying the web 6 and on the head a crowned upper or running surface or tread 8 for engaging the beveled tread 9 of a conventional flanged railway vehicle wheel 10.
  • the outer and inner guard rails 3 and 4 spaced laterally from and extending longitudinally parallel to the running rail head 7, suitably are formed as upstanding or vertically disposed upper flanges or legs of outer and inner guard rail members 11 and 12, respectively.
  • Rigid and preferably integral with the rail head 7 and supporting web 6, the outer and inner guard rail members 11 and 12 have horizontally disposed lower legs or webs 13 and 14, respectively, instanding from the lower ends of the guard rails 3 and 4 and connecting the latter to the web suitably through the running rail head.
  • the outer and inner guard rails or flanges 3 and 4 are of such upward extent and so laterally spaced relative to the running surface 8 or a wheel 10 thereon as to vertically overlap and normally be spaced from opposite ends 15 of the' wheel and present to the usual flat surfaces 16 thereon correspondingly flat inner bearing, engaging or movement-limiting surfaces 17 extending longitudinally parallel to each other and the rail head 7. Since the inboard flange 18 on the wheel 10 extends below and the wheel's outer end is disposed above the running surface 8, the vertical overlap between the adjoining wheel ends 15 and the outer and inner guard rails 3 and 4 is obtainable without requiring the guard rails to be of the same upward extent. Thus, it usually will suffice for the inner guard rail 4 to be substantially coterminous upwardly with the top of the running surface 8, while the outer guard rail 3 necessarily extends thereabove.
  • each of the grooves 19 is of sufficient depth and so contoured or configured as to receive or accommodate the overlying part of the wheel without normal contact therewith over the range of permissive vertical wear of the rail head, the lower limit of which is indicated by the horizontal dot-anddash line across the head.
  • the improved rail I normally will engage or contact the wheels 10 of railway vehicles (not shown) running thereon only through the rail head 7, with outboard lateral movement of the wheels relative to the rail head restrained only by the wheels inboard flanges 18.
  • the resultant tendency of the inboard flange 18 to ride up on the rail head 7 brings into operation or play the outboard guard rail 3 by engaging the flat inner surface 17 thereof with the confronting flat surface 16 on the outer end of the wheel.
  • the contact between the outer guard rail and wheel usually will be only momentary but regardless of the duration will effectively limit further outboard movement of the wheel and produce a counterforce for restoring the wheel to normal running or operating position on the rail head.
  • inboard movement of a wheel relative to the rail head such as induced by inboard lateral forces on an inner wheel of a railway vehicle rounding an outside curve, brings the inboard guard rail similarly into play and, by engagement of the confronting flat surfaces 17 and 16 on that rail and the inboard end of the wheel, prevents further inboard movement of the wheel and restores it to normal position on the rail head.
  • the outboard and inboard guard rails will restrain fish-tailing or swiveling of the wheel and the railway truck (not shown) of which it is a part and lifting of the wheel from the rail head under forces such as result from track irregularities.
  • the improved combined rail 1 in its preferred integral form can readily be rolled to shape and, like conventional rail, is adapted to be laid either as jointed sections or as continuous rail in accordance with more modern practice.
  • the supporting web 6 desirably is somewhat thicker than that of a standard rail designed for supporting comparable vertical loads, with the thickening applied inwardly of the vertical line, indicated in dot-and-dash in FIG. 1, through the point of contact between the rail and wheel treads 8 and 9, for increased bending resistance to the usually higher outboard forces to which it will be subjected in service.
  • the combined rail 1 is compatible with standard rail and, except for cross-overs for which its guard arms 3 and 4 are unsuited, can either form an entire track or, for economys sake, be combined with standard rail and limited to track sections, such as curves, where excessive lateral forces in high speed service are likely to occur.
  • the combined rail 1 is expectedly heavier than standard rail of comparable vertical loading.
  • the combined rail would be 92.9 pounds heavier and weigh 207.9 pounds/yd.
  • the end or lateral clearances between the guard rails 3 and 4 and a wheel 10 will depend on the requirements of a specific Rail for the particular track.
  • the end clearances of course must be sufficient to prevent contact in normal operation between the guard rails and any wheel running on the running rail 2 and the spread or lateral spacing between the inner surfaces 17 of the guard rails therefore will be determined by the maximum thickness of the vehicle wheels for which the particular track is designed.
  • the end clearances should be as small as practicable for the guard rails to operate most efficiently in holding a wheel against derailment from the running rail and for a standard 5% inch thick passenger car wheel a clearance of about /4 inch at each end of the wheel ordinarily will suffice for both purposes.
  • a combined running and guard rail for high speed ground transporation comprising a running rail, and outboard and inboard guard rails on opposite sides and rigid with and laterally spaced from said running rail, said guard rails vertically overlapping and being normally spaced from and engageable with adjoining ends of a flanged vehicle wheel on said running rail for so limiting lateral movement of said wheel in both directions relative to said running rail as to hold said wheel against derailment therefrom and prevent a flange of said wheel from riding up on a running surface of said rail without interfering with normal movement of said wheel thereon.
  • a combined running and guard rail according to claim 1 including a base flange, and a web integral with and upstanding from said base flange and thereabove mounting said running and guard rails, and wherein a head of the running rail overlies and said guard rails are laterally offset from said web, and the several rails-are integral with each other and said web.
  • each guard rail is an upper leg of a guard rail member, and each guard rail member has an instanding lower leg connecting the lower end of the upper leg thereof to the running rail head.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Railway Tracks (AREA)
US00222165A 1972-01-31 1972-01-31 Combined running and guard rail Expired - Lifetime US3756508A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22216572A 1972-01-31 1972-01-31

Publications (1)

Publication Number Publication Date
US3756508A true US3756508A (en) 1973-09-04

Family

ID=22831141

Family Applications (1)

Application Number Title Priority Date Filing Date
US00222165A Expired - Lifetime US3756508A (en) 1972-01-31 1972-01-31 Combined running and guard rail

Country Status (8)

Country Link
US (1) US3756508A (is)
JP (1) JPS4887503A (is)
AU (1) AU445336B2 (is)
CA (1) CA947261A (is)
DE (1) DE2239653A1 (is)
FR (1) FR2170361A5 (is)
GB (1) GB1399734A (is)
SE (1) SE380307B (is)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501466A (ja) * 1982-07-19 1984-08-16 ベンストレム，ニルス　ベングト　ビクトル 軌道に沿って進む乗り物のためのレ−ル
US20150191876A1 (en) * 2012-07-09 2015-07-09 Daetwyler Sealing Technologies Deutschland Gmbh Rail arrangement
CN105316984A (zh) * 2014-07-29 2016-02-10 岳池县丽城环保科技有限公司 高铁列车护轨保险装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2309668A1 (fr) * 1975-04-30 1976-11-26 Embranchements Indl Const Rail a orniere ou a gorge
JPS5524364U (is) * 1978-08-07 1980-02-16
GB9000581D0 (en) * 1990-01-10 1990-03-14 British Steel Plc Tram track
JP4490890B2 (ja) * 2005-09-12 2010-06-30 財団法人鉄道総合技術研究所 車両用軌道

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US429470A (en) * 1890-06-03 mcgiehan
US477713A (en) * 1892-06-28 Guard-rail for railways
US934784A (en) * 1909-07-10 1909-09-21 Charles A Alden Guard-rail.
US1042221A (en) * 1912-05-07 1912-10-22 Charles W Hansen Railway construction.
US1535626A (en) * 1924-05-20 1925-04-28 Parker William Thomas Rail construction
US3311304A (en) * 1964-03-18 1967-03-28 Beteiligungs & Patentverw Gmbh Arrangement for preventing derailing of rail vehicles

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US429470A (en) * 1890-06-03 mcgiehan
US477713A (en) * 1892-06-28 Guard-rail for railways
US934784A (en) * 1909-07-10 1909-09-21 Charles A Alden Guard-rail.
US1042221A (en) * 1912-05-07 1912-10-22 Charles W Hansen Railway construction.
US1535626A (en) * 1924-05-20 1925-04-28 Parker William Thomas Rail construction
US3311304A (en) * 1964-03-18 1967-03-28 Beteiligungs & Patentverw Gmbh Arrangement for preventing derailing of rail vehicles

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59501466A (ja) * 1982-07-19 1984-08-16 ベンストレム，ニルス　ベングト　ビクトル 軌道に沿って進む乗り物のためのレ−ル
AU571847B2 (en) * 1982-07-19 1988-04-28 Bengt Nils Viktor Bonstrom Method of supporting a rail for a track vehicle
JPH0428841B2 (is) * 1982-07-19 1992-05-15 Nirusu Benguto Bikutoru Bensutoremu
US20150191876A1 (en) * 2012-07-09 2015-07-09 Daetwyler Sealing Technologies Deutschland Gmbh Rail arrangement
US9873988B2 (en) * 2012-07-09 2018-01-23 Daetwyler Sealing Technologies Deutschland Gmbh Rail arrangement
CN105316984A (zh) * 2014-07-29 2016-02-10 岳池县丽城环保科技有限公司 高铁列车护轨保险装置

Also Published As

Publication number Publication date
SE380307B (sv) 1975-11-03
DE2239653A1 (de) 1973-08-09
AU445336B2 (en) 1974-02-21
CA947261A (en) 1974-05-14
AU4274472A (en) 1973-11-29
JPS4887503A (is) 1973-11-17
FR2170361A5 (is) 1973-09-14
GB1399734A (en) 1975-07-02

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