DE244737C - - Google Patents

Info

Publication number
DE244737C
DE244737C DENDAT244737D DE244737DA DE244737C DE 244737 C DE244737 C DE 244737C DE NDAT244737 D DENDAT244737 D DE NDAT244737D DE 244737D A DE244737D A DE 244737DA DE 244737 C DE244737 C DE 244737C
Authority
DE
Germany
Prior art keywords
seizure
wedges
piles
pushed
iron
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.)
Active
Application number
DENDAT244737D
Other languages
German (de)
Publication of DE244737C publication Critical patent/DE244737C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/04—Cantilever extension or similar protecting devices for use in longwall working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

Patent-Anspruch:Patent claim: Vorrichtung zur Abstützung des Hangenden mittels einzelner Stempel und Anpfähle, dadurch [gekennzeichnet, daß der Anpfahl aus einem I-Eisen besteht, durch welches Pfändungskeile hindurchgesteckt sind.Device for supporting the hanging wall by means of individual punches and piles, characterized in that the post consists of an iron through which Seizure wedges are pushed through.
DENDAT244737D Active DE244737C (en)

Publications (1)

Publication Number Publication Date
DE244737C true DE244737C (en)

Family

ID=503748

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT244737D Active DE244737C (en)

Country Status (1)

Country Link
DE (1) DE244737C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE894533C (en) * 1943-11-12 1953-10-26 Arnold Dr-Ing Haarmann Method and device for the temporary support of the hanging wall in front of the coal face during peeling extraction
DE904881C (en) * 1942-03-25 1954-02-22 Gelsenkirchener Bergwerks Ag Wanderdr mining expansion
DE905723C (en) * 1943-11-12 1954-03-04 Arnold Haarmann Dr Ing Steel cap extension
DE917484C (en) * 1951-04-24 1954-09-06 Gutehoffnungshuette Sterkrade Cranked cap for pit construction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE904881C (en) * 1942-03-25 1954-02-22 Gelsenkirchener Bergwerks Ag Wanderdr mining expansion
DE894533C (en) * 1943-11-12 1953-10-26 Arnold Dr-Ing Haarmann Method and device for the temporary support of the hanging wall in front of the coal face during peeling extraction
DE905723C (en) * 1943-11-12 1954-03-04 Arnold Haarmann Dr Ing Steel cap extension
DE917484C (en) * 1951-04-24 1954-09-06 Gutehoffnungshuette Sterkrade Cranked cap for pit construction

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