BE486554A - - Google Patents

Info

Publication number
BE486554A
BE486554A BE486554DA BE486554A BE 486554 A BE486554 A BE 486554A BE 486554D A BE486554D A BE 486554DA BE 486554 A BE486554 A BE 486554A
Authority
BE
Belgium
Application number
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.)
Publication date
Publication of BE486554A publication Critical patent/BE486554A/xx

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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/38—Telescopic props with parts held relatively to each other by friction or gripping with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations
    • 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
    • E21D15/14—Telescopic props
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted

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)
BE486554D 1948-10-15 BE486554A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE485322T 1948-10-15
BE486554T 1948-12-29

Publications (1)

Publication Number Publication Date
BE486554A true BE486554A (ko) 1949-06-29

Family

ID=132194

Family Applications (1)

Application Number Title Priority Date Filing Date
BE486554D BE486554A (ko) 1948-10-15

Country Status (1)

Country Link
BE (1) BE486554A (ko)

Similar Documents

Publication Publication Date Title
AT166638B (ko)
AT165629B (ko)
AT165757B (ko)
BE492950A (ko)
BE486554A (ko)
BE487284A (ko)
BE481873A (ko)
BE267826A (ko)
BE481851A (ko)
BE479713A (ko)
BE481503A (ko)
BE481876A (ko)
BE482016A (ko)
BE482108A (ko)
NL84766C (ko)
NL73116C (ko)
NL71609C (ko)
NL71409C (ko)
NL70594C (ko)
BE481243A (ko)
NL68835C (ko)
BE481488A (ko)
NL67052C (ko)
BE479891A (ko)
BE481320A (ko)