DE174871C - - Google Patents

Info

Publication number
DE174871C
DE174871C DENDAT174871D DE174871DA DE174871C DE 174871 C DE174871 C DE 174871C DE NDAT174871 D DENDAT174871 D DE NDAT174871D DE 174871D A DE174871D A DE 174871DA DE 174871 C DE174871 C DE 174871C
Authority
DE
Germany
Prior art keywords
frame
pulley
drilling
rope
straight guide
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
DENDAT174871D
Other languages
German (de)
English (en)
Publication of DE174871C publication Critical patent/DE174871C/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)
  • Earth Drilling (AREA)
DENDAT174871D Active DE174871C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE174871C true DE174871C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=439576

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT174871D Active DE174871C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE174871C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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