FR1146738A - étançon de mine - Google Patents

étançon de mine

Info

Publication number
FR1146738A
FR1146738A FR1146738DA FR1146738A FR 1146738 A FR1146738 A FR 1146738A FR 1146738D A FR1146738D A FR 1146738DA FR 1146738 A FR1146738 A FR 1146738A
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
Robert Grass
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 FR1146738A publication Critical patent/FR1146738A/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
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations

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)
FR1146738D 1955-02-04 1956-02-01 étançon de mine Expired FR1146738A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1146738X 1955-02-04

Publications (1)

Publication Number Publication Date
FR1146738A true FR1146738A (fr) 1957-11-14

Family

ID=7727043

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1146738D Expired FR1146738A (fr) 1955-02-04 1956-02-01 étançon de mine

Country Status (1)

Country Link
FR (1) FR1146738A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215090B (de) * 1959-05-26 1966-04-28 Karl Gerlach Vorrichtung zum Anspannen der Spannkeile von zwei- oder mehrteiligen Grubenstempeln

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1215090B (de) * 1959-05-26 1966-04-28 Karl Gerlach Vorrichtung zum Anspannen der Spannkeile von zwei- oder mehrteiligen Grubenstempeln

Similar Documents

Publication Publication Date Title
FR1096391A (fr) étai de mine perfectionné
FR1113337A (fr) étançon hydraulique
FR83006E (fr) Lanterneau
FR1202536A (fr) étançon de mine
FR1146738A (fr) étançon de mine
FR1150204A (fr) Mine
FR1133974A (fr) étançon de mine
FR1075691A (fr) Nouvel étançon
FR1175285A (fr) étançon de mine
FR1116117A (fr) étai
FR1130903A (fr) étançon de mine
FR1120297A (fr) étançon de mine
FR1132827A (fr) étançon de mine
CH339090A (de) Tretmine
FR1212988A (fr) Nouvel étançon de mine
FR1180686A (fr) étançon de mine
FR1164143A (fr) étançon de mine
FR1181473A (fr) étançon de mine
FR1170009A (fr) étançon de mine
FR1187587A (fr) étançon de mine
FR1178745A (fr) étançon de mine
FR1107421A (fr) étançon de mine
FR1214273A (fr) étançon de mine
FR1222567A (fr) étai de mine
FR1206464A (fr) étançon de mine