DE211060C - - Google Patents

Info

Publication number
DE211060C
DE211060C DENDAT211060D DE211060DA DE211060C DE 211060 C DE211060 C DE 211060C DE NDAT211060 D DENDAT211060 D DE NDAT211060D DE 211060D A DE211060D A DE 211060DA DE 211060 C DE211060 C DE 211060C
Authority
DE
Germany
Prior art keywords
electromagnet
rope
moment
armature
pair
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
DENDAT211060D
Other languages
German (de)
English (en)
Publication of DE211060C publication Critical patent/DE211060C/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

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)
DENDAT211060D Active DE211060C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE211060C true DE211060C (enrdf_load_stackoverflow)

Family

ID=472899

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT211060D Active DE211060C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE211060C (enrdf_load_stackoverflow)

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