FR475811A - Knife holder for tunnel boring machine - Google Patents

Knife holder for tunnel boring machine

Info

Publication number
FR475811A
FR475811A FR475811DA FR475811A FR 475811 A FR475811 A FR 475811A FR 475811D A FR475811D A FR 475811DA FR 475811 A FR475811 A FR 475811A
Authority
FR
France
Prior art keywords
boring machine
knife holder
tunnel boring
tunnel
knife
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)
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.)
HERCULES TUNNEL MACHINE AND DEVELOPMENT COMPAN
Original Assignee
HERCULES TUNNEL MACHINE AND DEVELOPMENT COMPAN
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 HERCULES TUNNEL MACHINE AND DEVELOPMENT COMPAN filed Critical HERCULES TUNNEL MACHINE AND DEVELOPMENT COMPAN
Application granted granted Critical
Publication of FR475811A publication Critical patent/FR475811A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/106—Making by using boring or cutting machines with percussive tools, e.g. pick-hammers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR475811D 1913-07-29 1914-07-29 Knife holder for tunnel boring machine Expired FR475811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US475811XA 1913-07-29 1913-07-29

Publications (1)

Publication Number Publication Date
FR475811A true FR475811A (en) 1915-06-17

Family

ID=1513663

Family Applications (1)

Application Number Title Priority Date Filing Date
FR475811D Expired FR475811A (en) 1913-07-29 1914-07-29 Knife holder for tunnel boring machine

Country Status (1)

Country Link
FR (1) FR475811A (en)

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