DE207038C - - Google Patents

Info

Publication number
DE207038C
DE207038C DENDAT207038D DE207038DA DE207038C DE 207038 C DE207038 C DE 207038C DE NDAT207038 D DENDAT207038 D DE NDAT207038D DE 207038D A DE207038D A DE 207038DA DE 207038 C DE207038 C DE 207038C
Authority
DE
Germany
Prior art keywords
wedge
drill
hammer
piston
tool holder
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
DENDAT207038D
Other languages
German (de)
English (en)
Publication of DE207038C publication Critical patent/DE207038C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C37/00—Other methods or devices for dislodging with or without loading
    • E21C37/04—Other methods or devices for dislodging with or without loading by devices with parts pressed mechanically against the wall of a borehole or a slit
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Earth Drilling (AREA)
DENDAT207038D Active DE207038C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE207038C true DE207038C (enrdf_load_stackoverflow)

Family

ID=469168

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT207038D Active DE207038C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE207038C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906197C (de) * 1948-10-02 1954-03-11 Heinrich Prebeck Verfahren und Werkzeug zum Spalten von Granit und aehnlichen Hartsteinen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE906197C (de) * 1948-10-02 1954-03-11 Heinrich Prebeck Verfahren und Werkzeug zum Spalten von Granit und aehnlichen Hartsteinen

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