GB1052405A - - Google Patents

Info

Publication number
GB1052405A
GB1052405A GB2985063A GB2985063A GB1052405A GB 1052405 A GB1052405 A GB 1052405A GB 2985063 A GB2985063 A GB 2985063A GB 2985063 A GB2985063 A GB 2985063A GB 1052405 A GB1052405 A GB 1052405A
Authority
GB
United Kingdom
Prior art keywords
chamber
july
passages
prop
communication
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
GB2985063A
Other languages
English (en)
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
Publication of GB1052405A publication Critical patent/GB1052405A/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
    • E21D15/44—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)
  • Reciprocating Pumps (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
GB2985063A 1962-07-27 1963-07-26 Expired GB1052405A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG35569A DE1193460B (de) 1962-07-27 1962-07-27 Hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
GB1052405A true GB1052405A (enrdf_load_stackoverflow) 1966-12-21

Family

ID=40996482

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2985063A Expired GB1052405A (enrdf_load_stackoverflow) 1962-07-27 1963-07-26

Country Status (4)

Country Link
BE (1) BE635501A (enrdf_load_stackoverflow)
DE (1) DE1193460B (enrdf_load_stackoverflow)
FR (1) FR1364512A (enrdf_load_stackoverflow)
GB (1) GB1052405A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075931A (en) * 1975-10-09 1978-02-28 Caldwell Melvin R Lift-jack fluid motor for hydraulic lift trucks

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE547272A (enrdf_load_stackoverflow) * 1955-04-25
GB774470A (en) * 1955-11-19 1957-05-08 Becorit Grubenausbau Gmbh Improvements relating to hydraulic pit-props
NL218204A (enrdf_load_stackoverflow) * 1956-06-21
BE560243A (enrdf_load_stackoverflow) * 1956-08-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4075931A (en) * 1975-10-09 1978-02-28 Caldwell Melvin R Lift-jack fluid motor for hydraulic lift trucks

Also Published As

Publication number Publication date
FR1364512A (fr) 1964-06-19
BE635501A (enrdf_load_stackoverflow) 1964-01-27
DE1193460B (de) 1965-05-26

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