FR401267A - Étai de mine - Google Patents

Étai de mine

Info

Publication number
FR401267A
FR401267A FR401267DA FR401267A FR 401267 A FR401267 A FR 401267A FR 401267D A FR401267D A FR 401267DA FR 401267 A FR401267 A FR 401267A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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
Hermann Schwarz
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 FR401267A publication Critical patent/FR401267A/fr
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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations

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)
FR401267D 1909-03-26 1909-03-26 Étai de mine Expired FR401267A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR401267T 1909-03-26

Publications (1)

Publication Number Publication Date
FR401267A true FR401267A (fr) 1909-08-24

Family

ID=1446081

Family Applications (1)

Application Number Title Priority Date Filing Date
FR401267D Expired FR401267A (fr) 1909-03-26 1909-03-26 Étai de mine

Country Status (1)

Country Link
FR (1) FR401267A (fr)

Similar Documents

Publication Publication Date Title
FR401267A (fr) Étai de mine
FR399400A (fr) Support de drille
CH49604A (de) Sprengpetarde
FR10447E (fr) Étancon de mines artificiel
FR7710E (fr) Étancon de mines artificiel
FR8280E (fr) Étancon de mines artificiel
FR9414E (fr) Étancon de mines artificiel
CH47536A (de) Ziegeldach
CH47805A (de) Luftmine
DK12237C (da) Kabelmineprojektil.
AT53092B (de) Seemine.
CH50531A (de) Leisten
CH48048A (de) Dachziegel
FR411844A (fr) Crics
FR11141E (fr) Étancon pour mines
FR395517A (fr) Étancon pour mines
FR417852A (fr) Appreteuse
FR411859A (fr) Copophone
FR400675A (fr) Cavecon-muserolle
FR398568A (fr) Ophtalmo-fundoscope
FR17860E (fr) Masticateur-fourchette
FI3652A (fi) Säckhållare
CH46205A (fr) Wattheuremètre
FI3629A (fi) Hästrävsa
FI3612A (fi) Enspårig kälke