FR730837A - mine prop - Google Patents

mine prop

Info

Publication number
FR730837A
FR730837A FR730837DA FR730837A FR 730837 A FR730837 A FR 730837A FR 730837D A FR730837D A FR 730837DA FR 730837 A FR730837 A FR 730837A
Authority
FR
France
Prior art keywords
mine prop
prop
mine
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
Heinrich Toussaint
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOCHUMER HEISENHUTTE
Original Assignee
BOCHUMER HEISENHUTTE
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 by BOCHUMER HEISENHUTTE filed Critical BOCHUMER HEISENHUTTE
Application granted granted Critical
Publication of FR730837A publication Critical patent/FR730837A/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
    • E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
    • E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
    • 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)
FR730837D 1931-07-29 1932-02-02 mine prop Expired FR730837A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE730837X 1931-07-29

Publications (1)

Publication Number Publication Date
FR730837A true FR730837A (en) 1932-08-24

Family

ID=6637230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR730837D Expired FR730837A (en) 1931-07-29 1932-02-02 mine prop

Country Status (1)

Country Link
FR (1) FR730837A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE741146C (en) * 1940-09-14 1943-11-05 Arnold Koepe Iron pit stamp
DE745114C (en) * 1938-09-16 1944-02-26 Georg Bachmann Iron mine support
DE971644C (en) * 1948-10-02 1959-03-05 Gutehoffnungshuette Sterkrade Multi-part iron pit stamp

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE745114C (en) * 1938-09-16 1944-02-26 Georg Bachmann Iron mine support
DE741146C (en) * 1940-09-14 1943-11-05 Arnold Koepe Iron pit stamp
DE971644C (en) * 1948-10-02 1959-03-05 Gutehoffnungshuette Sterkrade Multi-part iron pit stamp

Similar Documents

Publication Publication Date Title
FR806590A (en) mine prop
FR868634A (en) iron mine prop
FR732263A (en) Improvements to detonators
FR757734A (en) Improvements to mine explosive devices
FR730837A (en) mine prop
FR825109A (en) mine prop
FR754975A (en) Improvements to mine cartridges
FR659567A (en) Mine hanger puller
FR46924E (en) mine prop
FR728360A (en) Mine coverage
FR730085A (en) mine prop
FR801821A (en) mine prop
FR732607A (en) Improvements to mine ventilators
FR45248E (en) mine prop
FR724344A (en) Improvements to mine lamps
FR828019A (en) Land mine
CH151706A (en) Mine sharpener.
FR669971A (en) Floatable-submersible tunnel
FR670613A (en) Improvements to mine cartridges
FR702235A (en) Improvements to mine cartridges
FR768108A (en) Improvements to mine props
FR682526A (en) Improvements to mine lamps
FR593280A (en) combined mine prop
FR792433A (en) elastic mine prop
FR578158A (en) mine prop