FR62394E - étançon métallique pour mines et exploitations analogues - Google Patents

étançon métallique pour mines et exploitations analogues

Info

Publication number
FR62394E
FR62394E FR62394DA FR62394E FR 62394 E FR62394 E FR 62394E FR 62394D A FR62394D A FR 62394DA FR 62394 E FR62394 E FR 62394E
Authority
FR
France
Prior art keywords
mines
similar operations
metal prop
prop
metal
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
Gilles Smal
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 FR62394E publication Critical patent/FR62394E/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)
FR62394D 1952-01-22 1952-01-22 étançon métallique pour mines et exploitations analogues Expired FR62394E (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR62394T 1952-01-22

Publications (1)

Publication Number Publication Date
FR62394E true FR62394E (fr) 1955-06-14

Family

ID=8695826

Family Applications (1)

Application Number Title Priority Date Filing Date
FR62394D Expired FR62394E (fr) 1952-01-22 1952-01-22 étançon métallique pour mines et exploitations analogues

Country Status (1)

Country Link
FR (1) FR62394E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738602A (en) * 1971-06-30 1973-06-12 A Arnett Joist supporting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3738602A (en) * 1971-06-30 1973-06-12 A Arnett Joist supporting device

Similar Documents

Publication Publication Date Title
FR1067271A (fr) Crémone
FR1075793A (fr) étançon hydraulique
FR62394E (fr) étançon métallique pour mines et exploitations analogues
FR1082903A (fr) Supports pour toits de mine
CH314369A (de) Mine
FR1082624A (fr) Composition métallique
FR1063268A (fr) Fusée
CA482971A (fr) Desulfuration d'hydrocarbures
FR1032140A (fr) étais métalliques
FR1094586A (fr) étai hydraulique de mine
FR1078001A (fr) Broyeur-mortier
FR1083350A (fr) Soutènement flexible pour mines
FR1052372A (fr) Grue
FR973461A (fr) Etançon métallique pour mines et exploitations analogues
FR1080985A (fr) étançon de mines
CA18722S (en) Sportshirt
FR1085922A (fr) Gyroscope
FR1059300A (fr) étançon de mine
FR1080329A (fr) Perfectionnements apportés aux explosifs pour travaux miniers et analogues
FR1057033A (fr) étançon métallique coulissant
CA481930A (fr) Recuperation de metaux
FR1083183A (fr) étançon
FR1069865A (fr) Transporteur pour mine
CA481798A (fr) Supports metalliques ajustables
ES30010Y (es) Toldo metálico