DE169936C - - Google Patents

Info

Publication number
DE169936C
DE169936C DENDAT169936D DE169936DA DE169936C DE 169936 C DE169936 C DE 169936C DE NDAT169936 D DENDAT169936 D DE NDAT169936D DE 169936D A DE169936D A DE 169936DA DE 169936 C DE169936 C DE 169936C
Authority
DE
Germany
Prior art keywords
cutting edges
cutting
cylindrical body
manner
cutting tool
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
DENDAT169936D
Other languages
German (de)
English (en)
Publication of DE169936C publication Critical patent/DE169936C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
    • E21C25/10—Rods; Drums

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)
  • Knives (AREA)
DENDAT169936D Active DE169936C (OSRAM)

Publications (1)

Publication Number Publication Date
DE169936C true DE169936C (OSRAM)

Family

ID=435021

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT169936D Active DE169936C (OSRAM)

Country Status (1)

Country Link
DE (1) DE169936C (OSRAM)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764761C (de) * 1943-03-30 1953-05-18 August Wagener Keilspitze fuer Abbauhaemmer
DE941182C (de) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Schlagbohrkrone fuer Gesteinsbohrer
US4080093A (en) * 1974-11-18 1978-03-21 Hartmetallwerkzeugfabrik Andreas Maier Kg Drill for electronic conductor plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE764761C (de) * 1943-03-30 1953-05-18 August Wagener Keilspitze fuer Abbauhaemmer
DE941182C (de) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Schlagbohrkrone fuer Gesteinsbohrer
US4080093A (en) * 1974-11-18 1978-03-21 Hartmetallwerkzeugfabrik Andreas Maier Kg Drill for electronic conductor plates

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