NL6404248A - - Google Patents

Info

Publication number
NL6404248A
NL6404248A NL6404248A NL6404248A NL6404248A NL 6404248 A NL6404248 A NL 6404248A NL 6404248 A NL6404248 A NL 6404248A NL 6404248 A NL6404248 A NL 6404248A NL 6404248 A NL6404248 A NL 6404248A
Authority
NL
Netherlands
Application number
NL6404248A
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
Priority to NL6404248A priority Critical patent/NL6404248A/xx
Priority to BE646930A priority patent/BE646930A/xx
Priority to GB1991964A priority patent/GB1024268A/en
Publication of NL6404248A publication Critical patent/NL6404248A/xx

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
    • E21D15/58—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
    • 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)
  • Nozzles (AREA)
NL6404248A 1964-04-17 1964-04-17 NL6404248A (enrdf_load_stackoverflow)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL6404248A NL6404248A (enrdf_load_stackoverflow) 1964-04-17 1964-04-17
BE646930A BE646930A (enrdf_load_stackoverflow) 1964-04-17 1964-04-23
GB1991964A GB1024268A (en) 1964-04-17 1964-05-13 Improvements in and relating to hydraulic pit props

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6404248A NL6404248A (enrdf_load_stackoverflow) 1964-04-17 1964-04-17

Publications (1)

Publication Number Publication Date
NL6404248A true NL6404248A (enrdf_load_stackoverflow) 1965-10-18

Family

ID=19789862

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6404248A NL6404248A (enrdf_load_stackoverflow) 1964-04-17 1964-04-17

Country Status (3)

Country Link
BE (1) BE646930A (enrdf_load_stackoverflow)
GB (1) GB1024268A (enrdf_load_stackoverflow)
NL (1) NL6404248A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
GB1024268A (en) 1966-03-30
BE646930A (enrdf_load_stackoverflow) 1964-08-17

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