DE1001956B - Hydraulischer Grubenstempel - Google Patents

Hydraulischer Grubenstempel

Info

Publication number
DE1001956B
DE1001956B DEA24767A DEA0024767A DE1001956B DE 1001956 B DE1001956 B DE 1001956B DE A24767 A DEA24767 A DE A24767A DE A0024767 A DEA0024767 A DE A0024767A DE 1001956 B DE1001956 B DE 1001956B
Authority
DE
Germany
Prior art keywords
piston
compressed air
liquid
pit
pump
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.)
Pending
Application number
DEA24767A
Other languages
German (de)
English (en)
Inventor
Karl Evert Anders Joelson
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.)
IND HYDRAULIK AB
Original Assignee
IND HYDRAULIK AB
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 IND HYDRAULIK AB filed Critical IND HYDRAULIK AB
Publication of DE1001956B publication Critical patent/DE1001956B/de
Pending 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
    • E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators

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)
  • Press Drives And Press Lines (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Reciprocating Pumps (AREA)
DEA24767A 1955-04-25 1956-04-25 Hydraulischer Grubenstempel Pending DE1001956B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE794547X 1955-04-25

Publications (1)

Publication Number Publication Date
DE1001956B true DE1001956B (de) 1957-02-07

Family

ID=20339739

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA24767A Pending DE1001956B (de) 1955-04-25 1956-04-25 Hydraulischer Grubenstempel

Country Status (5)

Country Link
BE (1) BE547272A (enrdf_load_stackoverflow)
DE (1) DE1001956B (enrdf_load_stackoverflow)
FR (1) FR1192133A (enrdf_load_stackoverflow)
GB (1) GB794547A (enrdf_load_stackoverflow)
LU (1) LU34334A1 (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1082212B (de) * 1958-12-31 1960-05-25 Bwg Bergwerk Walzwerk Be- und Entlueftungsventil fuer hydraulische Grubenstempel
DE1135399B (de) * 1958-09-13 1962-08-30 Hermann Schwarz Kommanditgesel Druckmittelbetriebenes Grubenausbauelement
DE1191776B (de) * 1962-04-09 1965-04-29 Kloeckner Werke Ag Hydraulischer Grubenstempel
DE1211113B (de) * 1957-06-11 1966-02-24 Dobson Ltd W E & F Hydraulischer Grubenstempel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE635501A (enrdf_load_stackoverflow) * 1962-07-27 1964-01-27
GB977800A (en) * 1962-08-21 1964-12-16 Electro Hydraulics Ltd Improvements in or relating to mine roof supports

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211113B (de) * 1957-06-11 1966-02-24 Dobson Ltd W E & F Hydraulischer Grubenstempel
DE1135399B (de) * 1958-09-13 1962-08-30 Hermann Schwarz Kommanditgesel Druckmittelbetriebenes Grubenausbauelement
DE1082212B (de) * 1958-12-31 1960-05-25 Bwg Bergwerk Walzwerk Be- und Entlueftungsventil fuer hydraulische Grubenstempel
DE1191776B (de) * 1962-04-09 1965-04-29 Kloeckner Werke Ag Hydraulischer Grubenstempel

Also Published As

Publication number Publication date
FR1192133A (fr) 1959-10-23
LU34334A1 (enrdf_load_stackoverflow)
BE547272A (enrdf_load_stackoverflow)
GB794547A (en) 1958-05-07

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