FR836892A - Braking device for rock drill - Google Patents

Braking device for rock drill

Info

Publication number
FR836892A
FR836892A FR836892DA FR836892A FR 836892 A FR836892 A FR 836892A FR 836892D A FR836892D A FR 836892DA FR 836892 A FR836892 A FR 836892A
Authority
FR
France
Prior art keywords
braking device
rock drill
drill
rock
braking
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of FR836892A publication Critical patent/FR836892A/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
    • E21B19/08—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)
  • Braking Arrangements (AREA)
FR836892D 1936-08-14 1938-04-20 Braking device for rock drill Expired FR836892A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US95961A US2121563A (en) 1936-08-14 1936-08-14 Braking device
FR836892T 1938-04-20

Publications (1)

Publication Number Publication Date
FR836892A true FR836892A (en) 1939-01-27

Family

ID=22254386

Family Applications (1)

Application Number Title Priority Date Filing Date
FR836892D Expired FR836892A (en) 1936-08-14 1938-04-20 Braking device for rock drill

Country Status (2)

Country Link
US (1) US2121563A (en)
FR (1) FR836892A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5634536A (en) * 1995-04-21 1997-06-03 A-Dec, Inc. Brake for multi-positionable rotatable member

Also Published As

Publication number Publication date
US2121563A (en) 1938-06-21

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