FR449117A - Tirefond de sureté - Google Patents

Tirefond de sureté

Info

Publication number
FR449117A
FR449117A FR449117DA FR449117A FR 449117 A FR449117 A FR 449117A FR 449117D A FR449117D A FR 449117DA FR 449117 A FR449117 A FR 449117A
Authority
FR
France
Prior art keywords
lag
safety
safety lag
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
English (en)
Inventor
Fernand Bona
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.)
FERNAND BONA
Original Assignee
FERNAND BONA
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 FERNAND BONA filed Critical FERNAND BONA
Application granted granted Critical
Publication of FR449117A publication Critical patent/FR449117A/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • F16B23/0084—Specially shaped nuts or heads of bolts or screws for rotations by a tool with a threaded engagement between the head of the bolt or screw and the tool
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00—Fastening rails on sleepers, or the like
    • E01B9/02—Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor
    • E01B9/04—Fastening on wooden or concrete sleepers or on masonry without clamp members
    • E01B9/10—Screws or bolts for sleepers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
FR449117D 1912-10-07 1912-10-07 Tirefond de sureté Expired FR449117A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR449117T 1912-10-07

Publications (1)

Publication Number Publication Date
FR449117A true FR449117A (fr) 1913-02-18

Family

ID=1489671

Family Applications (1)

Application Number Title Priority Date Filing Date
FR449117D Expired FR449117A (fr) 1912-10-07 1912-10-07 Tirefond de sureté

Country Status (1)

Country Link
FR (1) FR449117A (fr)

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