FR85822E - Mine Roof Support Hydraulic Pile - Google Patents

Mine Roof Support Hydraulic Pile

Info

Publication number
FR85822E
FR85822E FR976027A FR976027A FR85822E FR 85822 E FR85822 E FR 85822E FR 976027 A FR976027 A FR 976027A FR 976027 A FR976027 A FR 976027A FR 85822 E FR85822 E FR 85822E
Authority
FR
France
Prior art keywords
roof support
mine roof
support hydraulic
hydraulic pile
pile
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
FR976027A
Other languages
French (fr)
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.)
UNIS FOND SA
Original Assignee
UNIS FOND SA
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 UNIS FOND SA filed Critical UNIS FOND SA
Priority to FR976027A priority Critical patent/FR85822E/en
Priority to DE1964U0004526 priority patent/DE1975710U/en
Priority to GB3281064A priority patent/GB1034537A/en
Application granted granted Critical
Publication of FR85822E publication Critical patent/FR85822E/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
    • 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
    • E21D15/48—Chocks or the like
    • E21D15/486—Chocks or the like with essential hydraulic or pneumatic details
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0017—Pile type supports
    • E21D23/003—Pile type supports consisting of a rigid pile
FR976027A 1963-08-13 1964-05-27 Mine Roof Support Hydraulic Pile Expired FR85822E (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR976027A FR85822E (en) 1964-05-27 1964-05-27 Mine Roof Support Hydraulic Pile
DE1964U0004526 DE1975710U (en) 1963-08-13 1964-07-28 HYDRAULIC PIT STAMP FOR ROOF MOUNTAINS.
GB3281064A GB1034537A (en) 1963-08-13 1964-08-12 Improvements in fluid-operated supports for mine roofs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR976027A FR85822E (en) 1964-05-27 1964-05-27 Mine Roof Support Hydraulic Pile

Publications (1)

Publication Number Publication Date
FR85822E true FR85822E (en) 1965-10-22

Family

ID=8830994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR976027A Expired FR85822E (en) 1963-08-13 1964-05-27 Mine Roof Support Hydraulic Pile

Country Status (1)

Country Link
FR (1) FR85822E (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120164A (en) * 1976-08-04 1978-10-17 Coal Industry (Patents) Limited Underground roadway or tunnel support

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4120164A (en) * 1976-08-04 1978-10-17 Coal Industry (Patents) Limited Underground roadway or tunnel support

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