DE191506C - - Google Patents

Info

Publication number
DE191506C
DE191506C DENDAT191506D DE191506DA DE191506C DE 191506 C DE191506 C DE 191506C DE NDAT191506 D DENDAT191506 D DE NDAT191506D DE 191506D A DE191506D A DE 191506DA DE 191506 C DE191506 C DE 191506C
Authority
DE
Germany
Prior art keywords
ropes
chisel
linkage
spring
rod
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
DENDAT191506D
Other languages
German (de)
English (en)
Publication of DE191506C publication Critical patent/DE191506C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/07Telescoping joints for varying drill string lengths; Shock absorbers

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)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
DENDAT191506D Active DE191506C (https=)

Publications (1)

Publication Number Publication Date
DE191506C true DE191506C (https=)

Family

ID=454898

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT191506D Active DE191506C (https=)

Country Status (1)

Country Link
DE (1) DE191506C (https=)

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