FR768419A - étrésillon de mine, métallique et élastique - Google Patents

étrésillon de mine, métallique et élastique

Info

Publication number
FR768419A
FR768419A FR768419DA FR768419A FR 768419 A FR768419 A FR 768419A FR 768419D A FR768419D A FR 768419DA FR 768419 A FR768419 A FR 768419A
Authority
FR
France
Prior art keywords
metallic
elastic
lead clip
clip
lead
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)
French (fr)
Inventor
Hugo Schramm
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 FR768419A publication Critical patent/FR768419A/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

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)
  • Actuator (AREA)
  • Combined Devices Of Dampers And Springs (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
FR768419D 1933-02-10 1934-02-09 étrésillon de mine, métallique et élastique Expired FR768419A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE433220X 1933-02-10

Publications (1)

Publication Number Publication Date
FR768419A true FR768419A (fr) 1934-08-06

Family

ID=6498306

Family Applications (1)

Application Number Title Priority Date Filing Date
FR768419D Expired FR768419A (fr) 1933-02-10 1934-02-09 étrésillon de mine, métallique et élastique

Country Status (3)

Country Link
BE (1) BE401341A (en0)
FR (1) FR768419A (en0)
GB (1) GB433220A (en0)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941541C (de) * 1952-04-09 1956-04-12 Eisenwerk Wanheim G M B H Verstellbarer metallischer Grubenstempel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106894832B (zh) * 2017-04-25 2019-01-15 沈阳航空航天大学 一种金属切削式吸能防冲液压立柱

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE941541C (de) * 1952-04-09 1956-04-12 Eisenwerk Wanheim G M B H Verstellbarer metallischer Grubenstempel

Also Published As

Publication number Publication date
BE401341A (en0)
GB433220A (en) 1935-08-12

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