DE1155076B - Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel - Google Patents

Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel

Info

Publication number
DE1155076B
DE1155076B DEB46178A DEB0046178A DE1155076B DE 1155076 B DE1155076 B DE 1155076B DE B46178 A DEB46178 A DE B46178A DE B0046178 A DEB0046178 A DE B0046178A DE 1155076 B DE1155076 B DE 1155076B
Authority
DE
Germany
Prior art keywords
pump
piston
cylinder
pressure
opening
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
DEB46178A
Other languages
German (de)
English (en)
Inventor
Erwin Blenkle
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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
Priority to BE571481D priority Critical patent/BE571481A/xx
Priority to NL231514D priority patent/NL231514A/xx
Application filed by Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Priority to DEB46178A priority patent/DE1155076B/de
Priority to GB3008658A priority patent/GB900711A/en
Priority to FR1210381D priority patent/FR1210381A/fr
Publication of DE1155076B publication Critical patent/DE1155076B/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Reciprocating Pumps (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
DEB46178A 1957-09-24 1957-09-24 Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel Pending DE1155076B (de)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE571481D BE571481A (enrdf_load_stackoverflow) 1957-09-24
NL231514D NL231514A (enrdf_load_stackoverflow) 1957-09-24
DEB46178A DE1155076B (de) 1957-09-24 1957-09-24 Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel
GB3008658A GB900711A (en) 1957-09-24 1958-09-19 Hydraulic pit prop
FR1210381D FR1210381A (fr) 1957-09-24 1958-09-23 Perfectionnements apportés aux étançons de mine alimentés avec un fluide sous pression, plus spécialement aux étançons hydrauliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB46178A DE1155076B (de) 1957-09-24 1957-09-24 Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
DE1155076B true DE1155076B (de) 1963-10-03

Family

ID=6967857

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB46178A Pending DE1155076B (de) 1957-09-24 1957-09-24 Druckmittelbeaufschlagter, insbesondere hydraulischer Grubenstempel

Country Status (5)

Country Link
BE (1) BE571481A (enrdf_load_stackoverflow)
DE (1) DE1155076B (enrdf_load_stackoverflow)
FR (1) FR1210381A (enrdf_load_stackoverflow)
GB (1) GB900711A (enrdf_load_stackoverflow)
NL (1) NL231514A (enrdf_load_stackoverflow)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686301A (en) * 1941-03-29 1953-01-21 Dresser Equipment Company Improvements in or relating to valve mechanisms and fluid operated motor devices employing said valve mechanisms

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB686301A (en) * 1941-03-29 1953-01-21 Dresser Equipment Company Improvements in or relating to valve mechanisms and fluid operated motor devices employing said valve mechanisms

Also Published As

Publication number Publication date
BE571481A (enrdf_load_stackoverflow)
GB900711A (en) 1962-07-11
FR1210381A (fr) 1960-03-08
NL231514A (enrdf_load_stackoverflow)

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