DE1054402B - Hydraulische Grubenstuetze - Google Patents

Hydraulische Grubenstuetze

Info

Publication number
DE1054402B
DE1054402B DEM32499A DEM0032499A DE1054402B DE 1054402 B DE1054402 B DE 1054402B DE M32499 A DEM32499 A DE M32499A DE M0032499 A DEM0032499 A DE M0032499A DE 1054402 B DE1054402 B DE 1054402B
Authority
DE
Germany
Prior art keywords
piston
support
pistons
pressure
pit
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
DEM32499A
Other languages
German (de)
English (en)
Inventor
Staddlestones Garth
Tranby Lane
Clarence Herbert Perry
Bernard Tebb
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.)
Mastabar Mining Equipment Co Ltd
Original Assignee
Mastabar Mining Equipment Co Ltd
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 Mastabar Mining Equipment Co Ltd filed Critical Mastabar Mining Equipment Co Ltd
Publication of DE1054402B publication Critical patent/DE1054402B/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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/18—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by changing the effective cross-section of the working surface of the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Actuator (AREA)
  • Transmissions By Endless Flexible Members (AREA)
  • Details Of Reciprocating Pumps (AREA)
DEM32499A 1955-12-08 1956-11-29 Hydraulische Grubenstuetze Pending DE1054402B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB35219/55A GB802804A (en) 1955-12-08 1955-12-08 Improvements in or relating to hydraulic pit props

Publications (1)

Publication Number Publication Date
DE1054402B true DE1054402B (de) 1959-04-09

Family

ID=10375225

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM32499A Pending DE1054402B (de) 1955-12-08 1956-11-29 Hydraulische Grubenstuetze

Country Status (4)

Country Link
BE (1) BE553228A (en, 2012)
DE (1) DE1054402B (en, 2012)
FR (1) FR1164647A (en, 2012)
GB (1) GB802804A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152375B (de) * 1959-08-21 1963-08-08 Acrow Eng Ltd Hydraulischer Grubenstempel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110307021B (zh) * 2019-07-29 2024-01-12 石家庄博安煤矿机械制造有限公司 一种煤矿用液压支撑装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713773A (en) * 1953-09-24 1955-07-26 Dowty Auto Units Ltd Hydraulic pit prop or jack
DE946528C (de) * 1953-02-25 1956-08-02 Dowty Hydraulic Units Ltd Hydraulisch betaetigter Grubenstempel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946528C (de) * 1953-02-25 1956-08-02 Dowty Hydraulic Units Ltd Hydraulisch betaetigter Grubenstempel
US2713773A (en) * 1953-09-24 1955-07-26 Dowty Auto Units Ltd Hydraulic pit prop or jack

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DE D18260 (Bekanntgemacht am 27.10.1955) *
DE D18717 (Bekanntgemacht am 09.02.1956) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1152375B (de) * 1959-08-21 1963-08-08 Acrow Eng Ltd Hydraulischer Grubenstempel

Also Published As

Publication number Publication date
GB802804A (en) 1958-10-15
BE553228A (en, 2012)
FR1164647A (fr) 1958-10-13

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