DE234539C - - Google Patents

Info

Publication number
DE234539C
DE234539C DENDAT234539D DE234539DA DE234539C DE 234539 C DE234539 C DE 234539C DE NDAT234539 D DENDAT234539 D DE NDAT234539D DE 234539D A DE234539D A DE 234539DA DE 234539 C DE234539 C DE 234539C
Authority
DE
Germany
Prior art keywords
bit
springs
triggers
closes
highest
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
DENDAT234539D
Other languages
German (de)
Publication of DE234539C publication Critical patent/DE234539C/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
    • E21B1/12—Percussion drilling with a reciprocating impulse member
    • E21B1/22—Percussion drilling with a reciprocating impulse member driven by electromagnets
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/12—Electrically operated hammers
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Drilling And Boring (AREA)

Description

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

Claims (1)

Patent-Anspruch :Patent claim: Elektromagnetischer Tiefbohrmeißel mit Vorrichtung zum Anzeigen der Meißelwirkung, dadurch gekennzeichnet, daß ein am Kern (α) befestigter Träger (i) in der im Verhältnis zur Gestängelänge höchsten und tiefsten Stellung des Meißels auf Pufferfedern (h) auftrifft, dadurch mit Schleiffedern (k) die Stromkreise (I oder m) jeweils schließt und dabei eine am Stande des Bohrmeisters befindliche Anzeigevorrichtung auslöst.Electromagnetic deep drilling bit with device for displaying the chisel effect, characterized in that a carrier (i ) attached to the core (α) hits buffer springs (h) in the highest and lowest position of the bit in relation to the rod length, thereby with slide springs (k) Circuits (I or m) each closes and a display device located at the drill master’s stand triggers.
DENDAT234539D Active DE234539C (en)

Publications (1)

Publication Number Publication Date
DE234539C true DE234539C (en)

Family

ID=494390

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT234539D Active DE234539C (en)

Country Status (1)

Country Link
DE (1) DE234539C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833334C (en) * 1950-09-14 1952-03-06 Rautenkranz Int Hermann Device for the production of large boreholes, in particular for mining purposes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE833334C (en) * 1950-09-14 1952-03-06 Rautenkranz Int Hermann Device for the production of large boreholes, in particular for mining purposes

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