FR883575A - metal prop for mines - Google Patents

metal prop for mines

Info

Publication number
FR883575A
FR883575A FR883575DA FR883575A FR 883575 A FR883575 A FR 883575A FR 883575D A FR883575D A FR 883575DA FR 883575 A FR883575 A FR 883575A
Authority
FR
France
Prior art keywords
mines
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
French (fr)
Inventor
Heinrich Toussaint
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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 Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Application granted granted Critical
Publication of FR883575A publication Critical patent/FR883575A/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
    • E21D15/14—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)
  • Sheet Holders (AREA)
FR883575D 1940-12-27 1942-06-25 metal prop for mines Expired FR883575A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET1409D DE957206C (en) 1940-12-27 1940-12-27 Iron pit stamp

Publications (1)

Publication Number Publication Date
FR883575A true FR883575A (en) 1943-07-08

Family

ID=7543450

Family Applications (1)

Application Number Title Priority Date Filing Date
FR883575D Expired FR883575A (en) 1940-12-27 1942-06-25 metal prop for mines

Country Status (2)

Country Link
DE (1) DE957206C (en)
FR (1) FR883575A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1141605B (en) * 1959-11-10 1962-12-27 Karl Gerlach Multi-part pit stamp with friction lock

Also Published As

Publication number Publication date
DE957206C (en) 1957-01-31

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