FR507433A - Perfectionnements aux traverses de chemins de fer - Google Patents

Perfectionnements aux traverses de chemins de fer

Info

Publication number
FR507433A
FR507433A FR507433A FR507433DA FR507433A FR 507433 A FR507433 A FR 507433A FR 507433 A FR507433 A FR 507433A FR 507433D A FR507433D A FR 507433DA FR 507433 A FR507433 A FR 507433A
Authority
FR
France
Prior art keywords
railway ties
ties
railway
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
Application number
FR507433A
Other languages
English (en)
Inventor
Calvin Levi Perkins
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.)
CALVIN LEVI PERKINS
Original Assignee
CALVIN LEVI PERKINS
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 CALVIN LEVI PERKINS filed Critical CALVIN LEVI PERKINS
Application granted granted Critical
Publication of FR507433A publication Critical patent/FR507433A/fr
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR507433A 1919-12-17 1919-12-17 Perfectionnements aux traverses de chemins de fer Expired FR507433A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR507433T 1919-12-17

Publications (1)

Publication Number Publication Date
FR507433A true FR507433A (fr) 1920-09-15

Family

ID=8909747

Family Applications (1)

Application Number Title Priority Date Filing Date
FR507433A Expired FR507433A (fr) 1919-12-17 1919-12-17 Perfectionnements aux traverses de chemins de fer

Country Status (1)

Country Link
FR (1) FR507433A (fr)

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