DE248991C - - Google Patents

Info

Publication number
DE248991C
DE248991C DENDAT248991D DE248991DA DE248991C DE 248991 C DE248991 C DE 248991C DE NDAT248991 D DENDAT248991 D DE NDAT248991D DE 248991D A DE248991D A DE 248991DA DE 248991 C DE248991 C DE 248991C
Authority
DE
Germany
Prior art keywords
punch
engages
pawl
teeth
hand lever
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
DENDAT248991D
Other languages
German (de)
English (en)
Publication of DE248991C publication Critical patent/DE248991C/de
Active legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/58—Devices for setting props or chocks
    • E21D15/581—Devices for setting props or chocks in which the props are pre- loaded

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
DENDAT248991D Active DE248991C (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
DE248991C true DE248991C (cg-RX-API-DMAC7.html)

Family

ID=507651

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT248991D Active DE248991C (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
DE (1) DE248991C (cg-RX-API-DMAC7.html)

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