DE275245C - - Google Patents

Info

Publication number
DE275245C
DE275245C DENDAT275245D DE275245DA DE275245C DE 275245 C DE275245 C DE 275245C DE NDAT275245 D DENDAT275245 D DE NDAT275245D DE 275245D A DE275245D A DE 275245DA DE 275245 C DE275245 C DE 275245C
Authority
DE
Germany
Prior art keywords
drum
drilling
drill
shaft
jaws
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
DENDAT275245D
Other languages
German (de)
English (en)
Publication of DE275245C publication Critical patent/DE275245C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • E21B1/04—Devices for reversing the movement of the rod or cable at the surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Boring (AREA)
DENDAT275245D Active DE275245C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE275245C true DE275245C (enrdf_load_stackoverflow)

Family

ID=531545

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT275245D Active DE275245C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE275245C (enrdf_load_stackoverflow)

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