GB1368654A - Pneumatically-operated valve for use with for example hydraulic cylinders used in consolidating means for mineworkings - Google Patents

Pneumatically-operated valve for use with for example hydraulic cylinders used in consolidating means for mineworkings

Info

Publication number
GB1368654A
GB1368654A GB711072A GB711072A GB1368654A GB 1368654 A GB1368654 A GB 1368654A GB 711072 A GB711072 A GB 711072A GB 711072 A GB711072 A GB 711072A GB 1368654 A GB1368654 A GB 1368654A
Authority
GB
United Kingdom
Prior art keywords
valve
piston
chamber
pilot valve
mineworkings
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.)
Expired
Application number
GB711072A
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.)
Bergwerksverband GmbH
Original Assignee
Bergwerksverband GmbH
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 claimed from DE19712111626 external-priority patent/DE2111626C/en
Application filed by Bergwerksverband GmbH filed Critical Bergwerksverband GmbH
Publication of GB1368654A publication Critical patent/GB1368654A/en
Expired 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
    • E21D15/50—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)
  • Fluid-Driven Valves (AREA)
  • Safety Valves (AREA)

Abstract

1368654 Valves BERGWERKSVERBAND GmbH 16 Feb 1972 [11 March 1971] 7110/72 Heading F2V A pneumatically-operated valve for use with hydraulic cylinders used in consolidating mineworkings comprises a valve closure member 19 and a rolling diaphragm 7 for the reception of compressed air signals and for actuating the member 19, characterized in that the diaphragm 7 operates a pilot valve 10, 11 which closes off a pressure chamber 17 in which a piston 16 acted on by a spring 15 is located. The member 19 and piston 16 are provided with a central bore such that the fluid pressure at the line 18 keeps the valve closed. The piston-rod 8 linking the pilot valve and the diaphragm is also provided with a bore which leads via an extension of the piston to a pressure chamber withinacup-shaped member 34. With the fluid pressure acting on both ends of the piston, a very small pressure pulse in the chamber 4 will open the pilot valve, exhaust the chamber 17 and thus open the valve. The valve can also be operated manually by a lever 37 acting on a button 36, which button displaces the cylinder 34 causing the pilot valve to be opened.
GB711072A 1971-03-11 1972-02-16 Pneumatically-operated valve for use with for example hydraulic cylinders used in consolidating means for mineworkings Expired GB1368654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712111626 DE2111626C (en) 1971-03-11 Compressed air-controlled valve for hydraulic cylinders of the pit lining

Publications (1)

Publication Number Publication Date
GB1368654A true GB1368654A (en) 1974-10-02

Family

ID=5801171

Family Applications (1)

Application Number Title Priority Date Filing Date
GB711072A Expired GB1368654A (en) 1971-03-11 1972-02-16 Pneumatically-operated valve for use with for example hydraulic cylinders used in consolidating means for mineworkings

Country Status (2)

Country Link
FR (1) FR2129538A5 (en)
GB (1) GB1368654A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164423A (en) * 1984-09-11 1986-03-19 Bestobell Control valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2537715C3 (en) * 1975-08-23 1980-11-06 Saarbergwerke Ag, 6600 Saarbruecken Pressure reducing valve arrangement and design for the connection of the two pressure chambers of a two-stage telescopic pit ram

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2164423A (en) * 1984-09-11 1986-03-19 Bestobell Control valve

Also Published As

Publication number Publication date
FR2129538A5 (en) 1972-10-27
DE2111626B1 (en) 1972-03-09

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee