FR50337E - Support pad for mines - Google Patents

Support pad for mines

Info

Publication number
FR50337E
FR50337E FR50337DA FR50337E FR 50337 E FR50337 E FR 50337E FR 50337D A FR50337D A FR 50337DA FR 50337 E FR50337 E FR 50337E
Authority
FR
France
Prior art keywords
mines
support pad
pad
support
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Arnold Haarmann
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.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR50337E publication Critical patent/FR50337E/en
Expired 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
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

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)
FR50337D 1939-04-13 1939-04-13 Support pad for mines Expired FR50337E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR50337T 1939-04-13

Publications (1)

Publication Number Publication Date
FR50337E true FR50337E (en) 1940-03-16

Family

ID=8685353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR50337D Expired FR50337E (en) 1939-04-13 1939-04-13 Support pad for mines

Country Status (1)

Country Link
FR (1) FR50337E (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756956A (en) * 1952-08-14 1956-07-31 William A Anderson Mounting for cameras and the like
EP0040096A1 (en) * 1980-05-13 1981-11-18 Amco Finanz Ag Yieldable support element

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756956A (en) * 1952-08-14 1956-07-31 William A Anderson Mounting for cameras and the like
EP0040096A1 (en) * 1980-05-13 1981-11-18 Amco Finanz Ag Yieldable support element

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