FR697806A - Montant métallique élastique, pour mines - Google Patents

Montant métallique élastique, pour mines

Info

Publication number
FR697806A
FR697806A FR697806DA FR697806A FR 697806 A FR697806 A FR 697806A FR 697806D A FR697806D A FR 697806DA FR 697806 A FR697806 A FR 697806A
Authority
FR
France
Prior art keywords
mines
elastic metal
metal post
post
elastic
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
Friedrich Reidiger
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 FR697806A publication Critical patent/FR697806A/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
    • E21D15/34—Telescopic props with parts held relatively to each other by friction or gripping by axially- moving balls, rollers, or the like

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)
FR697806D 1929-06-29 1930-06-23 Montant métallique élastique, pour mines Expired FR697806A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE697806X 1929-06-29

Publications (1)

Publication Number Publication Date
FR697806A true FR697806A (fr) 1931-01-22

Family

ID=6608024

Family Applications (1)

Application Number Title Priority Date Filing Date
FR697806D Expired FR697806A (fr) 1929-06-29 1930-06-23 Montant métallique élastique, pour mines

Country Status (1)

Country Link
FR (1) FR697806A (fr)

Similar Documents

Publication Publication Date Title
FR697806A (fr) Montant métallique élastique, pour mines
FR37200E (fr) Construction métallique
FR673919A (fr) Montant métallique élastique avertisseur, pour mines
FR677710A (fr) Agrafe métallique pour palissage
FR668731A (fr) Bouchage métallique
CH150963A (de) Tempierungsmaschine.
ES115656A1 (es) Construcciones metálicas.
FR689079A (fr) Alliage
FR687778A (fr) Alliage
FR677691A (fr) Alliage
FR675230A (fr) Bouchage
DK43089C (da) Slipsholder.
GR2452B (el) Αντιτριβικον μεταλλον δια μιξεως αλλων μεταλλων.
DK44326C (da) Strygejærn.
DK42956C (da) Strygejærn.
FR674272A (fr) Cintre métallique
FR648249A (fr) Poteau métallique
GR2305B (el) Ηλεκτρονομος ιδια δια τηλεφωνικας εγκαταστασεις.
GR2142B (el) Ταχυμετρον νεου συστηματος.
DK42867C (da) Anordning ved Passere.
FR37229E (fr) Crémone
FR675892A (fr) Crémone
DK41320C (da) Anordning ved Ajlespredere.
DK41842C (da) Anordning ved Radrenserskær.
FR686993A (fr) Traverse métallique