FR19618E - Props for mining galleries made of several woods - Google Patents

Props for mining galleries made of several woods

Info

Publication number
FR19618E
FR19618E FR19618DA FR19618E FR 19618 E FR19618 E FR 19618E FR 19618D A FR19618D A FR 19618DA FR 19618 E FR19618 E FR 19618E
Authority
FR
France
Prior art keywords
props
mining galleries
woods
several
several woods
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
Leo Koenig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR19618E publication Critical patent/FR19618E/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/02—Non-telescopic props
    • E21D15/04—Non-telescopic props with wooden prop parts joined by double conical connectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
FR19618D 1913-12-08 1914-07-01 Props for mining galleries made of several woods Expired FR19618E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR465870T 1913-12-08
FR19618T 1914-07-01

Publications (1)

Publication Number Publication Date
FR19618E true FR19618E (en) 1915-03-16

Family

ID=1360818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR19618D Expired FR19618E (en) 1913-12-08 1914-07-01 Props for mining galleries made of several woods

Country Status (1)

Country Link
FR (1) FR19618E (en)

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