US3643864A - Railroad grade crossing - Google Patents

Railroad grade crossing Download PDF

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Publication number
US3643864A
US3643864A US877607A US3643864DA US3643864A US 3643864 A US3643864 A US 3643864A US 877607 A US877607 A US 877607A US 3643864D A US3643864D A US 3643864DA US 3643864 A US3643864 A US 3643864A
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Prior art keywords
rail
rails
profile
grade crossing
members
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Expired - Lifetime
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US877607A
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English (en)
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Hans Ziegler
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C9/00—Special pavings; Pavings for special parts of roads or airfields
    • E01C9/04—Pavings for railroad level-crossings

Definitions

  • This invention is concerned with a railroad grade crossing having at least one inner plate bridging the inner region between a pair of rails and at least-one outer plate at each outer side of the pair of rails, and particularly to such a grade crossing in which the inner plate is supported individually and the outer plates are supported at the sides of the rails, laterally adjacent the rail profile.
  • the outer plates of such known crossings are also comprised of cast iron and are on their sides facing the rails, generally profiled in such fashion that they can be disposed directly against the lateral rail profile and can preferably be clamped thereto.
  • the sides of the outer plates, facing away from the rails, are mounted upon the crossties and are secured in suitable manner against displacement.
  • support-means comprising elongated form members, secured longitudinally between the at tachment installations of the rails and laterally between the rails and the inner plate(s), and between the rails and the outer plates, which at each side of the rails are adapted to the lateral rail profile and form at the side of the plates a support or hearing for the inner and outer plates.
  • the plates After being laid upon the form members, the plates are immediately and to a high degree of precision seated at their predetermined location without the need for intricate manipulating of wedges or the alignment of the plates.
  • the gaps between the plates and the rails can thereby also be kept extremely smallsince inaccuracies do not have to be taken into consideration during laying.
  • the shock loads of the rails and rail attachments, on the one hand, and of the traffic passing thereover, on the other hand, are reduced to a minimum. This benefits the longevity and durability of the rail construction and the railroad crossing as well as the driving comfort of the vehicles using the crossing.
  • form members serve as connecting elements between the rail and inner and outer plates, it is not necessary to impart a complicated form or profile to the plate sides facing the rails. It is, therefore, also no longer necessary to form these plates as expensive cast-iron bodies, but these can now comprise simple and inexpensive materials, as for example, concrete, which are well able to cope with the loads needed, but which can only with difficulty be formed into complicated profiles which can consequently be only lightly loaded.
  • the arrangement of the form bodies also makes possible, provided the track gauge is constant, the use of the same inner and outer plates for different rail profiles. It is only necessary to use for laying form pieces which are adapted'in each instance to a particular rail profile. Since fabrication of different form pieces is substantially less expensive then the production or fabrication of different inner and outer plates, the result is, therefore, a substantial standardization of parts and a corresponding cost reduction of the fabrication of railroad crossings as compared to those know to the art. 1
  • the superstructure of the railroad track remainslin the vicinity of the crossing substantially the same as in the case of the open rail, i.e., outside effects of heat, frost, snow and rain are absorbed in the vicinity of the railroad crossing in the same manner as in the case ofopen rail.
  • the instant invention exhibits not only the advantage of being economically fabricated, but it possesses, moreover, a long duration of life while requiring only a minimum of maintenance.
  • FIG. 1 depicts a cross-sectional view of a railroad grade crossing constructed according to this invention, and particularly adapted for a highway crossing;
  • FIG. 2 depicts a slightly modified railroad crossing similar to FIG. I and having one end thereof slightly inclined as for use as a cart crossing in a railroad station;
  • FIG. 3 is an exploded view depicting the arrangement of the elements of the present invention.
  • FIG. 1 depicts a railroad crossing constructed in accordance with this invention, in which a pair of rails l are arranged upon crossties 3 by means of suitable known attachment installations designated as 2.
  • the crossties 3 rest within a ballast bed 4.
  • the railroad track and ballast bed are bounded on either side by street or pavement 5.
  • the railroad grade crossing exhibits at least one inner plate member 6 which is arranged between the rails l, and at least one outer plate member 7 which is arranged at each outer side of the pair of rails. Depending upon the size of the railroad crossing, it may, however, be necessary to arrange a plurality of inner and outer plates side by side in longitudinal direction of the rail extension.
  • the inner plate member(s) 6 and the outer plate members 7 are, adjacent the side of the rails 1, mounted individually upon inner and outer form members 8 and 9, respectively, which form members are in turn supported laterally upon the side of the track profile.
  • the form members 8 and 9 may be constructed of different heights, with inner form members 8 extending up to the base of the railhead and outer form members 9 extending up to the running surface of the rails.
  • form members 8 and 9 are, with respect to their shape, formed alike and exhibit at the side of the rails a profile which is complementary to the lateral rail profile and which extends vertically from the upper edge of the base of the rail to the lower end of the railhead. This is necessary in order to give enough freedom of movement to the rim of the wheels passing over the rails and to leave a conventional flangeway.
  • the form members On the side facing away from the rail, the form members comprise a support or bearing means for the inner or outer plates 6, 7, which support means extends parallel to rail 1.
  • This support or bearing means may comprise a shoulder which is, for example, wedge shaped at the outer side of the form member, which shoulder then engages in a corresponding recess in the facing side of the respective plates.
  • the support or bearing means is, however, preferably arranged in the side of each form member in the form ofa recess having a support or bearing surface 10. It is useful for this recess to be wedge shaped in which case the wedge surface can be inclined at both sides. As can be seen from the drawings, one will, however, as a rule, align the lower wedge surface 10 of the wedgelike recess parallel to the rail level.
  • the form members 8 and 9 can be each formed as an integral or single-piece member.
  • each of the inner form members 8 at the inner side of the rails is preferably divided in lengthwise direction into lower and upper portions 8a and 8b, respectively. This division is preferably carried out above the level of the support or bearing surface 10.
  • the form members are preferably made of a plastic material and, in this regard, the use of neoprene or similar materials has proven to be particularly satisfactory, The form members can thus be produced in the desired profiles in the simplest fashion. If desired, the form members can alternately be constructed of glued or cemented oak wood laminations of appropriate contour.
  • the inner and outer plates 6 and 7 are each provided with a profile surface 11 on their sides which face the form members.
  • This profile surface 11 is complementary to the profile of form members 8 and 9, which faces away from the respective rail.
  • the profile surface 11 is recessed so that the plates can also be arranged above these attachment installations.
  • the inner and outer plates 6 and 7, respectively, preferably are constructed of reinforced concrete and are sealed off on their sides facing the form members by a profiled iron member, not shown, which is anchored in the respective plate body.
  • a particularly useful arrangement may be provided wherein each of the inner and outer plates comprises a closed peripheral iron frame within which the concrete is cast.
  • the outer plates 7 are supported by the outer form members 9 only at the inner ends of the plates; the sides of these plates facing away from the rails can be mounted upon construction elements adjoining the track structure, in any desired fashion.
  • the outer plates 7 are, at their ends facing away from the rails, supported upon respective U-irons 12, which may preferably comprise rolled U-irons which rest in the outer portion of the ballast bed.
  • each of the outer plates 7 is beneficial to provide with a vertical adjustment means 13.
  • the vertical adjustment means may preferably comprise screw spindles for this purpose.
  • FIG. I shows the manner in which such an outer plate 7 is adjusted to the level of an adjoining street 5, whereas in FIG. 2, such an outer plate 7 is shown as adjusted to the comparatively elevated level of an adjoining railroad station platform 14.
  • the mounting of the railroad grade crossing is extremely simple and rapid.
  • the lower portions 8a of the inner form members 8 are laid along the inner side of each rail 1 at predetermined locations between the rail attachment installations 2, upon the base of rail 1.
  • the inner plates 6 can then be immediately laid upon the support or bearing surfaces 10 of the lower portions 8a of the form members 8, and are, thus, already firmly seated in their proper position.
  • the upper portions 8b of the form members 8 can now simply be inserted from the side, between rail 1 and the edge of the inner plate 6.
  • the inner plate members 6 are initially temporarily supported at approximately the desired height between the rails, the inner form members 8 are laterally inserted between the inner plate members and the rails, and the inner plate members are then lowered so that they rest upon and are supported by the respective support surfaces 10.
  • the outer form members 9 are inserted into the lateral rail profile, and then the outer plates 7 are laid thereupon. After regulating the elevational position of the outer plates 7 by means of screw spindles 13, the laying operation is substantially complete.
  • the plates can now, if desired, be additionally secured against lateral displacement by firmly threading nonillustrated end closure members, on'the one hand, at the front surfaces of the outermost plates and, on the other hand, at the rail attachment devices.
  • a deflector plate also not illustrated, for the protection against coupling parts which are hanging down from rail vehicles.
  • the instant railroad grade crossing according to this invention possesses in addition the further advantage that for all types of rails and all kinds of railroad grade crossings, the same kinds of inner and outer plates can be used.
  • the inner plates 6 In order to adapt the connection of these plates to any and all rail profiles, it is only necessary, in the case of a given track gauge, to provide form members 8 and 9 having a suitable profile.
  • the inner plates 6 In the case of different gauges, the inner plates 6 must be produced with correspondingly adapted lateral dimensions.
  • the mounting level of the plates can also be easily determined by providing the support or bearing surfaces 10 for the carrier plates at the corresponding level within form members 8 and 9.
  • a further advantage of the inventive grade crossing resides in the fact that it can be easily and quickly disassembled when the track section must be freed for track maintenance work, such as compaction or reballasting.
  • the thus dismantled parts can be readily reused as desired.
  • a railroad grade crossing for at least one pair of rails each rail having a base portion and a head portion spaced from one another to define therebetween a predetermined lateral rail profile at each side thereof, with such rails secured to crossties at spaced intervals by attachment installations arranged along each rail, comprising at least one inner plate member bridging the region between the pair of rails;
  • each said-support means comprising an elongated form member formed of one-piece construction and extending from the base portion at least up to the head portion of the rail, each said form member has a first longitudinal side facing the rail, said first side conforming to the lateral rail profile and a second longitudinal side, said second longitudinal side having a receiving recess therein, each recess bounded at its lower region by a lower support surface extending substantially parallel to the plane formed by the pair of rails;
  • each said plate member being provided with a laterally extending profile surface means for engaging and conforming to said receiving recess, each said profile surface means engages a receiving recess in a form member whereby each said inner plate member is supported only by said profile surface means along the sides thereof closest said pair of rails and each said outer plate member is supported on the side thereof closest a rail only by said profile surface means.
  • each plate member includes a lower surface likewise extending substantially parallel to the track and which bears upon said lower support surface of the associated form member into which it is inserted.
  • a railroad grade crossing as defined in claim 1 wherein said plate members are recessed at the area of said attachment installations in order to render access to said receiving recesses for said profile surface means of said plate members 6.
  • each of said inner plate members and each of said outer plate members comprises a peripheral iron frame means filled with concrete.
  • each of said outer plate members at the sides thereof opposite said rails, comprises vertical adjustment means for adjusting the elevation of the outer sides of said outer plate members.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Structures (AREA)
  • Chain Conveyers (AREA)
US877607A 1968-11-19 1969-11-18 Railroad grade crossing Expired - Lifetime US3643864A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1724668A CH490571A (de) 1968-11-19 1968-11-19 Schienengleicher Bahnübergang

Publications (1)

Publication Number Publication Date
US3643864A true US3643864A (en) 1972-02-22

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ID=4423895

Family Applications (1)

Application Number Title Priority Date Filing Date
US877607A Expired - Lifetime US3643864A (en) 1968-11-19 1969-11-18 Railroad grade crossing

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Country Link
US (1) US3643864A (cs)
JP (1) JPS5134166B1 (cs)
AT (1) AT316610B (cs)
BE (1) BE741901A (cs)
CH (1) CH490571A (cs)
DE (2) DE1906690C3 (cs)
DK (1) DK129726B (cs)
ES (1) ES179750Y (cs)
FR (1) FR2023578A1 (cs)
GB (1) GB1281940A (cs)
LU (1) LU59836A1 (cs)
NL (1) NL164104C (cs)
NO (1) NO129305B (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4271555A (en) * 1979-03-14 1981-06-09 Joseph Mingolla Reinforced concrete bridge decking and method of making same
US4372488A (en) * 1974-03-20 1983-02-08 Semperit Aktiengesellschaft Level crossing for railroads and method of fabricating the same
US4545527A (en) * 1982-04-09 1985-10-08 Young Thomas B Railroad grade crossing
WO2009049338A1 (de) * 2007-10-17 2009-04-23 Gmundner Fertigteile Gesellschaft M.B.H. & Co. Kg. Gleiseindeckung

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7719283U1 (de) * 1977-06-20 1977-10-27 Gummiwerk Kraiburg Gmbh & Co, 8264 Waldkraiburg Platte fuer schienengleiche bahnuebergaenge
SE415681B (sv) * 1977-10-07 1980-10-20 A Betong Ab Anordning vid korsning mellan veg och jernveg
DE2906165A1 (de) * 1979-02-17 1980-08-28 Zueblin Ag Fahrweg fuer mischbetrieb von spurkranzgefuehrten schienenfahrzeugen und gummibereiften radfahrzeugen
AT367482B (de) * 1980-05-20 1982-07-12 Hoetzel Beton Gmbh Schienengleicher bahnuebergang mit innenplatten aus beton
CH661547A5 (de) * 1981-03-20 1987-07-31 Ampack Gleistechnik Ag Bahnuebergang.
AT390085B (de) * 1985-04-19 1990-03-12 Gmundner Fertigteile Gmbh Schienengleicher strassenuebergang
CA2088920C (en) * 1990-08-08 2001-12-25 Bernhard Neumann Railway level crossing
AT12433U1 (de) * 2011-01-17 2012-05-15 Gmundner Fertigteile Gmbh Gleis
BE1032249B1 (nl) 2023-12-21 2025-07-22 Peer Maarten Van Draagelement voor het vastklemmen van een profiel voor het ondersteunen van een spoorwegovergang

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725411A (en) * 1928-01-16 1929-08-20 Locomotive Finished Material C Railway-crossing construction
US1725410A (en) * 1926-11-24 1929-08-20 Locomotive Finished Material C Railway-crossing pavement
US2076338A (en) * 1935-07-23 1937-04-06 John J Greely Railway crossing
US2081352A (en) * 1936-02-19 1937-05-25 Truscon Steel Co Joint for railroad crossings
US2471167A (en) * 1945-12-15 1949-05-24 Ellis C Oxenrider Railroad-highway crossing construction
US2984417A (en) * 1960-12-06 1961-05-16 Howard B Voorhees Adjustable railroad crossing plates

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1725410A (en) * 1926-11-24 1929-08-20 Locomotive Finished Material C Railway-crossing pavement
US1725411A (en) * 1928-01-16 1929-08-20 Locomotive Finished Material C Railway-crossing construction
US2076338A (en) * 1935-07-23 1937-04-06 John J Greely Railway crossing
US2081352A (en) * 1936-02-19 1937-05-25 Truscon Steel Co Joint for railroad crossings
US2471167A (en) * 1945-12-15 1949-05-24 Ellis C Oxenrider Railroad-highway crossing construction
US2984417A (en) * 1960-12-06 1961-05-16 Howard B Voorhees Adjustable railroad crossing plates

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372488A (en) * 1974-03-20 1983-02-08 Semperit Aktiengesellschaft Level crossing for railroads and method of fabricating the same
US4271555A (en) * 1979-03-14 1981-06-09 Joseph Mingolla Reinforced concrete bridge decking and method of making same
US4545527A (en) * 1982-04-09 1985-10-08 Young Thomas B Railroad grade crossing
WO2009049338A1 (de) * 2007-10-17 2009-04-23 Gmundner Fertigteile Gesellschaft M.B.H. & Co. Kg. Gleiseindeckung
US20110215164A1 (en) * 2007-10-17 2011-09-08 Gmundner Fertigteile Gesellschaft M.B.H. & Co. Kg. Track covering
US8371513B2 (en) 2007-10-17 2013-02-12 Gmundner Fertigteile Gesellschaft M.B.H. & Co. Kg. Track covering
CN101827977B (zh) * 2007-10-17 2015-05-13 格蒙德尔成品部件有限公司 铁路覆盖装置

Also Published As

Publication number Publication date
DE6905246U (de) 1974-07-11
GB1281940A (en) 1972-07-19
ES179750Y (es) 1973-11-16
LU59836A1 (cs) 1970-01-19
DE1906690C3 (de) 1974-01-31
ES179750U (es) 1973-01-01
FR2023578A1 (cs) 1970-08-21
BE741901A (cs) 1970-05-19
AT316610B (de) 1974-07-25
CH490571A (de) 1970-05-15
DK129726B (da) 1974-11-11
DE1906690B2 (de) 1973-07-12
DK129726C (cs) 1975-04-21
JPS5134166B1 (cs) 1976-09-24
NL164104B (nl) 1980-06-16
NL164104C (nl) 1980-11-17
DE1906690A1 (de) 1970-05-21
NO129305B (cs) 1974-03-25
NL6917392A (cs) 1970-05-21

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