FR714158A - Improvements to monobloc crossings for railway tracks - Google Patents

Improvements to monobloc crossings for railway tracks

Info

Publication number
FR714158A
FR714158A FR714158DA FR714158A FR 714158 A FR714158 A FR 714158A FR 714158D A FR714158D A FR 714158DA FR 714158 A FR714158 A FR 714158A
Authority
FR
France
Prior art keywords
monobloc
crossings
railway tracks
railway
tracks
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
Other languages
French (fr)
Inventor
Harry Parry Jones
Samuel Summerson Wrightson
Charles Richard Matthews
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 filed Critical
Application granted granted Critical
Publication of FR714158A publication Critical patent/FR714158A/en
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
    • E01B7/00—Switches; Crossings
    • E01B7/10—Frogs
    • E01B7/12—Fixed frogs made of one part or composite

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR714158D 1930-05-20 1931-04-01 Improvements to monobloc crossings for railway tracks Expired FR714158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB714158X 1930-05-20

Publications (1)

Publication Number Publication Date
FR714158A true FR714158A (en) 1931-11-09

Family

ID=10494532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714158D Expired FR714158A (en) 1930-05-20 1931-04-01 Improvements to monobloc crossings for railway tracks

Country Status (1)

Country Link
FR (1) FR714158A (en)

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