FR1207923A - Perfectionnements apportés aux étançons hydrauliques de mines - Google Patents

Perfectionnements apportés aux étançons hydrauliques de mines

Info

Publication number
FR1207923A
FR1207923A FR1207923DA FR1207923A FR 1207923 A FR1207923 A FR 1207923A FR 1207923D A FR1207923D A FR 1207923DA FR 1207923 A FR1207923 A FR 1207923A
Authority
FR
France
Prior art keywords
mine props
hydraulic mine
hydraulic
props
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
English (en)
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 GES fur GRUBENAUSBAU
Original Assignee
BOCHUMER GES fur GRUBENAUSBAU
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 GES fur GRUBENAUSBAU filed Critical BOCHUMER GES fur GRUBENAUSBAU
Application granted granted Critical
Publication of FR1207923A publication Critical patent/FR1207923A/fr
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
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • 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
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being 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)
  • Application Of Or Painting With Fluid Materials (AREA)
FR1207923D 1957-07-25 1958-07-24 Perfectionnements apportés aux étançons hydrauliques de mines Expired FR1207923A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1207923X 1957-07-25

Publications (1)

Publication Number Publication Date
FR1207923A true FR1207923A (fr) 1960-02-19

Family

ID=6846593

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1207923D Expired FR1207923A (fr) 1957-07-25 1958-07-24 Perfectionnements apportés aux étançons hydrauliques de mines

Country Status (2)

Country Link
FR (1) FR1207923A (fr)
GB (1) GB893050A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU195988B (en) * 1986-05-05 1988-08-29 Veszpremi Szenbanyak Hydraulic working cylinder particularly hydraulic support used at mining
DE4015084A1 (de) * 1990-05-11 1991-11-14 Robert Wilhelm Heiliger Verfahren zur herstellung einer kolben-zylinder-einheit sowie kolben-zylinder-einheit hergestellt nach dem verfahren
US5348425A (en) * 1992-11-10 1994-09-20 Heiliger Robert W Piston cylinder device with a protective coating and method of producing such a coating
CN103737269B (zh) * 2014-01-22 2016-02-24 淮南巨万实业有限责任公司 一种包裹焊接加装防腐层液压支架立柱方法

Also Published As

Publication number Publication date
GB893050A (en) 1962-04-04

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