FR1002576A - Demounting device for hammer drills with hard metal edges - Google Patents

Demounting device for hammer drills with hard metal edges

Info

Publication number
FR1002576A
FR1002576A FR1002576DA FR1002576A FR 1002576 A FR1002576 A FR 1002576A FR 1002576D A FR1002576D A FR 1002576DA FR 1002576 A FR1002576 A FR 1002576A
Authority
FR
France
Prior art keywords
hard metal
metal edges
hammer drills
demounting device
demounting
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fried Krupp AG filed Critical Fried Krupp AG
Application granted granted Critical
Publication of FR1002576A publication Critical patent/FR1002576A/en
Expired 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
    • E21B19/18—Connecting or disconnecting drill bit and drilling pipe

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)
FR1002576D 1946-10-25 1946-10-25 Demounting device for hammer drills with hard metal edges Expired FR1002576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002576T 1946-10-25

Publications (1)

Publication Number Publication Date
FR1002576A true FR1002576A (en) 1952-03-07

Family

ID=9562303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1002576D Expired FR1002576A (en) 1946-10-25 1946-10-25 Demounting device for hammer drills with hard metal edges

Country Status (1)

Country Link
FR (1) FR1002576A (en)

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