FR1095219A - oleo-pneumatic prop - Google Patents

oleo-pneumatic prop

Info

Publication number
FR1095219A
FR1095219A FR1095219DA FR1095219A FR 1095219 A FR1095219 A FR 1095219A FR 1095219D A FR1095219D A FR 1095219DA FR 1095219 A FR1095219 A FR 1095219A
Authority
FR
France
Prior art keywords
oleo
prop
pneumatic
pneumatic prop
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
Jean-Marc Breschard
Michel Breschard
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 FR1095219A publication Critical patent/FR1095219A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
FR1095219D 1954-03-12 1954-03-12 oleo-pneumatic prop Expired FR1095219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1095219T 1954-03-12

Publications (1)

Publication Number Publication Date
FR1095219A true FR1095219A (en) 1955-05-31

Family

ID=9617414

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1095219D Expired FR1095219A (en) 1954-03-12 1954-03-12 oleo-pneumatic prop

Country Status (1)

Country Link
FR (1) FR1095219A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075075B (en) * 1960-02-11 Kronprinz Aktiengesellschaft, Solingen-Ohligs Hydraulic pit ram
DE1127843B (en) * 1957-12-13 1962-04-19 Salzgitter Maschinen Ag Device for setting hydraulic pit rams or the like.
DE1133327B (en) * 1956-10-29 1962-07-19 Wilhelm Reppel Multiple extendable hydraulic pit ram

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075075B (en) * 1960-02-11 Kronprinz Aktiengesellschaft, Solingen-Ohligs Hydraulic pit ram
DE1133327B (en) * 1956-10-29 1962-07-19 Wilhelm Reppel Multiple extendable hydraulic pit ram
DE1127843B (en) * 1957-12-13 1962-04-19 Salzgitter Maschinen Ag Device for setting hydraulic pit rams or the like.

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