US3550850A - Device for fixing a composite sleeper on a railway track support without ballast - Google Patents

Device for fixing a composite sleeper on a railway track support without ballast Download PDF

Info

Publication number
US3550850A
US3550850A US774847A US3550850DA US3550850A US 3550850 A US3550850 A US 3550850A US 774847 A US774847 A US 774847A US 3550850D A US3550850D A US 3550850DA US 3550850 A US3550850 A US 3550850A
Authority
US
United States
Prior art keywords
support
fixing
sleeper
stay
blocks
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.)
Expired - Lifetime
Application number
US774847A
Other languages
English (en)
Inventor
Roger Paul Sonneville
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3550850A publication Critical patent/US3550850A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B3/00—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails
    • E01B3/28—Transverse or longitudinal sleepers; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone
    • E01B3/36—Composite sleepers

Definitions

  • the present invention relates to the fixing of sleepers or ties of the composite type, that is, of the type comprising two concrete blocks interconnected by a metal stay, having its own elasticity, on a support which must be protected against vibration at medium and low frequencies, whenever the ballast which usually performs this function is not used.
  • This case occurs in particular when it is desired to fix the mixed or composite sleepers on a metal or concrete flooring of a structure or building over which the railway passes.
  • a known way of protecting this support against the effect of high and medium frequencies is to place between the concrete blocks of each sleeper and the support a sole of an elastomer having fluidtight microcells.
  • the horizontal dimensions of this sole are roughly those of the underface of the block and its thickness is determined in taking into account factors such as:
  • the sleepers of the track must also be maintained at their original position in the lateral and longitudinal directions and in the vertical direction according to a correct leveling.
  • the fixing must moreover be such that it allows:
  • microcellular elastomer sole allows the blocks to undergo large vertical movements (several millimeters) upon the passage of the axles would result in a rapidly-increasing disturbance of the mechanical device maintaining the blocks on the supports.
  • the object of the invention is therefore to provide a device for fixing a composite sleeper of a railway on a ballast-free support, said composite sleeper comprising two concrete blocks which are interconnected by a stay having its own elasticity and bear on said support through a sole of a cellular material having closed cells.
  • the device according to the invention comprises sleeper guide elements which are integral with said support and position said blocks longitudinally of the track and fixing means rendering the center part of said stay integral with said support.
  • the concrete blocks retain a certain liberty of movement in the vertical direction when their microcellular elastomer sole is compressed and decompressed upon the passage of the axles.
  • This freedom of vertical movement of the concrete blocks is however limited to the possibilities of elastic deformation of the stay in the vertical plane, so that the sleeper does not undergo excessive fatigue and there is no instantaneous exceeding of the elastic limit of the material of the stay.
  • FIG. 1 is an elevational view of a sleeper fixed to a support in accordance with the invention
  • FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and
  • FIG. 3 is a sectional view, on an enlarged scale, taken along line 3-3 of FIG. 1.
  • a fixing device is applied to a mixed or composite sleeper or tie l of the type described in US. Pat. No. 3,371,866 of Jul. 6, 1965. It must be understood that this sleeper has been chosen only by way of example and that the invention can be applied to any sleeper comprising two concrete blocks or masses 2 interconnected by a stay 3.
  • this stay consists of an L-section member inclined at 45 and having a lower flange 3" and an upper flange 3.
  • the sleeper 1 bears on a support 4 which can be the metal. flooring of a structure or construction and is devoid of ballast.
  • each concrete block 2 bears on the support 4 through a sole 5 of a microcellular elastomer having closed cells and possibly a sheet 6 of metal or wood which constitutes a packing-piece enabling the. sleeper to be adjusted in height. 7
  • Each block 2 is maintained laterally,.that is, longitudinally of the track, by guides 7 which can be simple L-section members welded, or fixed in any other way, to the support 4.
  • the means proper for fixing the sleeper to the support comprises a bracket 8 (FIG. 3) which is welded, or fixed in any other way, by one of its branches 8" to the support 4.
  • the bracket or member 8 also comprises a branch 8" which is parallel to the lower flange 3 of the stay and in which is provided an aperture 9. l
  • the stay 3 is secured to the bracket 8 by a bolt l0, slidable in the aperture 9, a nut 11 and a Washer 12.
  • a packing-piece 13 can be interposed, if desired, between the stay and the bracket.
  • the sleeper is positioned longitudinally of the track by the guides 7 whose distance apart corresponds to the width of the base of the blocks 2 and it is secured by the bolt 10 and nut 11. Before tightening the nut, the bolt can slide in the aperture 9 and this enables the track to be adjusted in plan, the correct leveling being achieved by means of the packing-pieces 6.
  • bracket 8 can be modified and adapted to that of the stay 3 interconnecting the concrete blocks. Further, the manner in which this bracket and the lateral guide elements 7 are fixed of course depends on the nature of the support 4 on which the sleeper is laid.
  • a rail support assembly comprising support means having a ballast-free supporting surface, a composite sleeper including two blocks and a metal stay interconnecting said blocks, said metal stay having its own elasticity and comprising, a member having an L-shaped cross section defined by a pair of flanges so disposed when operatively assembled with said blocks that a substantially horizontal plane bisects the angles between the flanges, a pair of soles of cellular material having closed cells and being located respectively between each said block and said ballast-free supporting surface, sleeper guide elements which are integral with or fixed to said support to position said blocks longitudinally of thetrack, a bracket integral with or fixed to said support means and having a branch substantially parallel to one of said stay flanges, and fixing means for fixing said one flange to said branch of the bracket.
  • said guide elements comprise a plurality of members each having an L- shaped cross section defined by a pair of flanges and having one stay flange to said branch of said bracket.
  • bracket defines an elongated aperture for receiving said bolt.
  • a rail support assembly comprising support means having a metal supporting surface, a composite sleeper comprising two concrete blocks and a metal member interconnecting said "blocks, said metal member having an L-shaped cross section defined by a pair of flanges and being so disposed when operatively assembled with said blocks that the angle between said flanges is bisected by a substantially horizontal plane, a sole of closed cellular material interposed between each block and said supporting surface, guide means fixed to said metal surface to position said blocks longitudinally, a bracket fixed to said metal supporting surface and located substantially in front of the center part of said metal member, said bracket having a first branch fixed to said metal supporting surface and a second branch extending substantially parallel to one flange of said metal member, and means for fixing said center part of the metal member to said second :branch of the bracket.
  • said guide elements are members each having an L-shapedcross section and having one face secured to said metal supporting surface and another face which is in abutting relatiomwith the corresponding concrete block.
  • fixing means comprises a bolt and nut assembly interconnecting said one flange of said metal member to said second branch of said bracket.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Railway Tracks (AREA)
US774847A 1968-10-03 1968-11-12 Device for fixing a composite sleeper on a railway track support without ballast Expired - Lifetime US3550850A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR168579 1968-10-03

Publications (1)

Publication Number Publication Date
US3550850A true US3550850A (en) 1970-12-29

Family

ID=8655252

Family Applications (1)

Application Number Title Priority Date Filing Date
US774847A Expired - Lifetime US3550850A (en) 1968-10-03 1968-11-12 Device for fixing a composite sleeper on a railway track support without ballast

Country Status (2)

Country Link
US (1) US3550850A (enExample)
FR (1) FR1586951A (enExample)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656690A (en) * 1969-03-22 1972-04-18 Ilseder Huette Railbed
US3920182A (en) * 1973-11-23 1975-11-18 George Molyneux Heavy duty rail track assemblies
US4079889A (en) * 1976-02-09 1978-03-21 The Raymond Lee Organization, Inc. Railroad track rail
EP0008743A1 (en) * 1978-08-22 1980-03-19 Jacob Albertus Eisses Method for improving the vibration absorption of a railway track supported on a bed of ballast and a track structure obtained by applying such a method
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
US4609144A (en) * 1984-04-27 1986-09-02 Stedef S.A. Railroad tie cover
US5551631A (en) * 1992-07-20 1996-09-03 Allevard Rail support device for unballasted railway track
US5826791A (en) * 1995-11-03 1998-10-27 Broughton; Amos W. Process for manufacturing a railroad rail support

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656690A (en) * 1969-03-22 1972-04-18 Ilseder Huette Railbed
US3920182A (en) * 1973-11-23 1975-11-18 George Molyneux Heavy duty rail track assemblies
US4079889A (en) * 1976-02-09 1978-03-21 The Raymond Lee Organization, Inc. Railroad track rail
EP0008743A1 (en) * 1978-08-22 1980-03-19 Jacob Albertus Eisses Method for improving the vibration absorption of a railway track supported on a bed of ballast and a track structure obtained by applying such a method
US4489884A (en) * 1980-10-10 1984-12-25 Stedef S.A. Railroad tie cover
US4609144A (en) * 1984-04-27 1986-09-02 Stedef S.A. Railroad tie cover
US5551631A (en) * 1992-07-20 1996-09-03 Allevard Rail support device for unballasted railway track
US5826791A (en) * 1995-11-03 1998-10-27 Broughton; Amos W. Process for manufacturing a railroad rail support

Also Published As

Publication number Publication date
FR1586951A (enExample) 1970-03-06

Similar Documents

Publication Publication Date Title
US3289941A (en) Railway track without ballast
US4449666A (en) Concrete railroad tie for supporting grade crossing panels
US6293473B1 (en) Railroad substructure
US3550850A (en) Device for fixing a composite sleeper on a railway track support without ballast
US3525472A (en) Vibration-suppressing composite rail for railways
US3223328A (en) Track structure for railroads and the like
US3295760A (en) Rubber rail seat for track structure and the like
US4267969A (en) Railroad grade crossing construction
US3688984A (en) Elastically yieldable insulating rail fastening device
CN107805977A (zh) 用于无砟轨道的弹性套靴和弹性垫板组件和无砟轨道
US4457468A (en) Railroad grade crossing construction
US3819114A (en) Railroad track assembly
US2867384A (en) Method and article of manufacture for supporting rails
CN207176403U (zh) 用于无砟轨道的弹性套靴和弹性垫板组件和无砟轨道
US3345952A (en) Guideway for high-speed mass transportation systems
Zicha High-speed rail track design
ATE163207T1 (de) Feste fahrbahn für schienengebundenen verkehr
US12252847B2 (en) Turnout arrangement with elastically supported turnout bases
GB1153467A (en) Supports for Track for use in Ballast-Free Railway Track Systems.
CN206385393U (zh) 无砟轨道
RU86956U1 (ru) Рельсовое скрепление со шпалой железнодорожного пути
Pospischilab et al. Sustainable superstructure with Under Sleeper Pads
US3687366A (en) Railway track
US1387184A (en) Roadbed construction
US3291394A (en) Composite rail