DE118455C - - Google Patents

Info

Publication number
DE118455C
DE118455C DENDAT118455D DE118455DA DE118455C DE 118455 C DE118455 C DE 118455C DE NDAT118455 D DENDAT118455 D DE NDAT118455D DE 118455D A DE118455D A DE 118455DA DE 118455 C DE118455 C DE 118455C
Authority
DE
Germany
Prior art keywords
clamping jaw
intermediate piece
clamps
springs
pins
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
DENDAT118455D
Other languages
German (de)
English (en)
Publication of DE118455C publication Critical patent/DE118455C/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
    • E21B19/089—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 with a spring or an additional weight

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)
DENDAT118455D Active DE118455C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE118455C true DE118455C (enrdf_load_stackoverflow)

Family

ID=387650

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT118455D Active DE118455C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE118455C (enrdf_load_stackoverflow)

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