DE1017118B - Raubventil fuer hydraulische Grubenstempel - Google Patents

Raubventil fuer hydraulische Grubenstempel

Info

Publication number
DE1017118B
DE1017118B DEG20647A DEG0020647A DE1017118B DE 1017118 B DE1017118 B DE 1017118B DE G20647 A DEG20647 A DE G20647A DE G0020647 A DEG0020647 A DE G0020647A DE 1017118 B DE1017118 B DE 1017118B
Authority
DE
Germany
Prior art keywords
valve
rams
hydraulic pit
robbery
robbery valve
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
DEG20647A
Other languages
English (en)
Inventor
Franz Eichner
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.)
Gutehoffnungshutte Sterkrade AG
Original Assignee
Gutehoffnungshutte Sterkrade AG
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 BE559146D priority Critical patent/BE559146A/xx
Priority to BE558743D priority patent/BE558743A/xx
Application filed by Gutehoffnungshutte Sterkrade AG filed Critical Gutehoffnungshutte Sterkrade AG
Priority to DEG20647A priority patent/DE1017118B/de
Priority to DEG20019A priority patent/DE1010932B/de
Priority to FR1178174D priority patent/FR1178174A/fr
Priority to GB2143657A priority patent/GB864032A/en
Priority to GB3060857A priority patent/GB876396A/en
Publication of DE1017118B publication Critical patent/DE1017118B/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
    • E21D15/60—Devices for withdrawing props or chocks
    • E21D15/603—Devices for withdrawing props or chocks by means of hydraulic devices
    • 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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

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)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Prostheses (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
  • Fluid-Pressure Circuits (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Safety Valves (AREA)

Description

Hierzu 1 Blatt Zeichnungen

Claims (1)

  1. Patentanspruch
    Raubventil für hydraulische Grubenstempel, welches aus einem Haupt- und einem Vo>rentlastungsventil besteht, dadurch, gekennzeichnet, daß die dem Stempeldruckraum zugekehrte wirksame Hauptventiltellerfläche kleiner ist als die diesem abgekehrte und nach öffnen des Vorentlastungsventils beaufschlagte Ventilfläche.
    In Betracht gezogene Druckschriften:
    Deutsche Patentschrift Nr. 922 525.
DEG20647A 1956-07-05 1956-07-05 Raubventil fuer hydraulische Grubenstempel Pending DE1017118B (de)

Priority Applications (7)

Application Number Priority Date Filing Date Title
BE559146D BE559146A (de) 1956-07-05
BE558743D BE558743A (de) 1956-07-05
DEG20647A DE1017118B (de) 1956-07-05 1956-07-05 Raubventil fuer hydraulische Grubenstempel
DEG20019A DE1010932B (de) 1956-07-05 1956-07-05 Hydraulischer Grubenstempel
FR1178174D FR1178174A (fr) 1956-07-05 1957-07-04 étançon hydraulique pour mine
GB2143657A GB864032A (en) 1956-07-05 1957-07-05 Improvements relating to hydraulic pit props or the like
GB3060857A GB876396A (en) 1956-07-05 1957-09-30 Improvements relating to hydraulic pit-props or the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG20647A DE1017118B (de) 1956-07-05 1956-07-05 Raubventil fuer hydraulische Grubenstempel
DEG20019A DE1010932B (de) 1956-07-05 1956-07-05 Hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
DE1017118B true DE1017118B (de) 1957-10-10

Family

ID=25978072

Family Applications (2)

Application Number Title Priority Date Filing Date
DEG20647A Pending DE1017118B (de) 1956-07-05 1956-07-05 Raubventil fuer hydraulische Grubenstempel
DEG20019A Pending DE1010932B (de) 1956-07-05 1956-07-05 Hydraulischer Grubenstempel

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEG20019A Pending DE1010932B (de) 1956-07-05 1956-07-05 Hydraulischer Grubenstempel

Country Status (4)

Country Link
BE (2) BE558743A (de)
DE (2) DE1017118B (de)
FR (1) FR1178174A (de)
GB (2) GB864032A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1130779B (de) * 1958-07-31 1962-06-07 Dowty Mining Equipment Ltd Hydraulischer Grubenstempel
DE1149318B (de) * 1960-08-05 1963-05-30 H Joe Rheinbay Dipl Ing Hydraulisch betaetigter Grubenstempel
DE1152375B (de) * 1959-08-21 1963-08-08 Acrow Eng Ltd Hydraulischer Grubenstempel
DE1168849B (de) * 1958-10-30 1964-04-30 Wilhelm Steinkopf Hydraulischer Grubenstempel
DE1193458B (de) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandernder Grubenausbau

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB894292A (en) * 1957-07-30 1962-04-18 Mastabar Mining Equip Co Ltd Improvements in or relating to hydraulic props, particularly pit props
SE431159B (sv) * 1980-05-05 1984-01-23 Hans Arne Valentin Johansson Lyftaggregat vid patientlyftanordningar
US4776561A (en) * 1986-12-05 1988-10-11 The Stanley Works Trigger control for air tool handle
DE102009009182A1 (de) 2009-02-16 2010-08-19 Süd-Chemie AG Zinkoxid-Kristallpartikel und Verfahren zu der Herstellung
CN102844523B (zh) 2010-02-19 2014-09-24 科学与工业研究会 用于地下矿井的顶板支撑的装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922525C (de) * 1952-04-26 1955-01-17 Eisenwerk Wanheim G M B H Hydraulischer Grubenstempel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE922525C (de) * 1952-04-26 1955-01-17 Eisenwerk Wanheim G M B H Hydraulischer Grubenstempel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1130779B (de) * 1958-07-31 1962-06-07 Dowty Mining Equipment Ltd Hydraulischer Grubenstempel
DE1193458B (de) * 1958-08-11 1965-05-26 Dobson Ltd W E & F Wandernder Grubenausbau
DE1168849B (de) * 1958-10-30 1964-04-30 Wilhelm Steinkopf Hydraulischer Grubenstempel
DE1152375B (de) * 1959-08-21 1963-08-08 Acrow Eng Ltd Hydraulischer Grubenstempel
DE1149318B (de) * 1960-08-05 1963-05-30 H Joe Rheinbay Dipl Ing Hydraulisch betaetigter Grubenstempel

Also Published As

Publication number Publication date
BE558743A (de)
GB864032A (en) 1961-03-29
DE1010932B (de) 1957-06-27
GB876396A (en) 1961-08-30
BE559146A (de)
FR1178174A (fr) 1959-05-05

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