DE284851C - - Google Patents

Info

Publication number
DE284851C
DE284851C DENDAT284851D DE284851DA DE284851C DE 284851 C DE284851 C DE 284851C DE NDAT284851 D DENDAT284851 D DE NDAT284851D DE 284851D A DE284851D A DE 284851DA DE 284851 C DE284851 C DE 284851C
Authority
DE
Germany
Prior art keywords
spindle
feed
slide
reversible
nut
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
DENDAT284851D
Other languages
German (de)
English (en)
Publication of DE284851C publication Critical patent/DE284851C/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/081—Screw-and-nut feed mechanisms

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)
DENDAT284851D Active DE284851C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE284851C true DE284851C (enrdf_load_stackoverflow)

Family

ID=540281

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT284851D Active DE284851C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE284851C (enrdf_load_stackoverflow)

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