FR2286943A1 - Soupape de commande pour un soutenement de taille hydrauliquement marchant - Google Patents

Soupape de commande pour un soutenement de taille hydrauliquement marchant

Info

Publication number
FR2286943A1
FR2286943A1 FR7530004A FR7530004A FR2286943A1 FR 2286943 A1 FR2286943 A1 FR 2286943A1 FR 7530004 A FR7530004 A FR 7530004A FR 7530004 A FR7530004 A FR 7530004A FR 2286943 A1 FR2286943 A1 FR 2286943A1
Authority
FR
France
Prior art keywords
piston
valve
high pressure
choke
control 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.)
Granted
Application number
FR7530004A
Other languages
English (en)
Other versions
FR2286943B1 (fr
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.)
Hemscheidt Hermann Maschinenfabrik GmbH and Co
Original Assignee
Hemscheidt Hermann Maschinenfabrik GmbH and Co
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 Hemscheidt Hermann Maschinenfabrik GmbH and Co filed Critical Hemscheidt Hermann Maschinenfabrik GmbH and Co
Publication of FR2286943A1 publication Critical patent/FR2286943A1/fr
Application granted granted Critical
Publication of FR2286943B1 publication Critical patent/FR2286943B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Sliding Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Multiple-Way Valves (AREA)
FR7530004A 1974-10-04 1975-10-01 Soupape de commande pour un soutenement de taille hydrauliquement marchant Granted FR2286943A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742447425 DE2447425B2 (de) 1974-10-04 1974-10-04 Steuerventil fuer hydraulisch schreitenden strebausbau

Publications (2)

Publication Number Publication Date
FR2286943A1 true FR2286943A1 (fr) 1976-04-30
FR2286943B1 FR2286943B1 (fr) 1978-04-07

Family

ID=5927578

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530004A Granted FR2286943A1 (fr) 1974-10-04 1975-10-01 Soupape de commande pour un soutenement de taille hydrauliquement marchant

Country Status (4)

Country Link
JP (1) JPS5185523A (fr)
DE (1) DE2447425B2 (fr)
FR (1) FR2286943A1 (fr)
ZA (1) ZA756039B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322319A1 (fr) * 1975-08-23 1977-03-25 Saarbergwerke Ag Soupape de detente reliant les deux verins d'un etancon hydraulique telescopique a deux etages
FR2523660A1 (fr) * 1982-03-17 1983-09-23 Beta Bv Dispositif de commutation pneumatique, notamme nt pour proteger contre des surpressions
FR2595770A1 (fr) * 1986-03-13 1987-09-18 Brev Ind Marine Exploit Dispositif d'alimentation en fluide d'une installation hydraulique, pneumatique ou hydro-pneumatique

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2738235C2 (de) * 1977-08-25 1982-06-16 Klöckner-Werke AG, 4100 Duisburg Hochdrucksitzventil
DE2743829C2 (de) * 1977-09-29 1984-03-29 Festo-Maschinenfabrik Gottlieb Stoll, 7300 Esslingen Mehrwegeventil

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021221B (de) * 1955-11-25 1957-12-19 Franz Clouth Rheinische Gummiw Hilfsgesteuertes Mehrwegeventil

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021221B (de) * 1955-11-25 1957-12-19 Franz Clouth Rheinische Gummiw Hilfsgesteuertes Mehrwegeventil

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2322319A1 (fr) * 1975-08-23 1977-03-25 Saarbergwerke Ag Soupape de detente reliant les deux verins d'un etancon hydraulique telescopique a deux etages
FR2523660A1 (fr) * 1982-03-17 1983-09-23 Beta Bv Dispositif de commutation pneumatique, notamme nt pour proteger contre des surpressions
FR2595770A1 (fr) * 1986-03-13 1987-09-18 Brev Ind Marine Exploit Dispositif d'alimentation en fluide d'une installation hydraulique, pneumatique ou hydro-pneumatique
EP0237449A3 (en) * 1986-03-13 1987-12-23 Sebim Apparatus for supplying fluid to a hydraulic, pneumatic or hydropneumatic installation

Also Published As

Publication number Publication date
DE2447425B2 (de) 1976-07-29
JPS5185523A (fr) 1976-07-27
FR2286943B1 (fr) 1978-04-07
ZA756039B (en) 1976-08-25
DE2447425A1 (de) 1976-04-08

Similar Documents

Publication Publication Date Title
GB1088608A (en) Gum supply device
US3537653A (en) Adhesive applicators
ES282774U (es) Dispositivo valvular de control del flujo para controlar el caudal de aceite suministrado a un dispositivo hidraulico.
FR2286943A1 (fr) Soupape de commande pour un soutenement de taille hydrauliquement marchant
ES355127A1 (es) Un dispositivo de valvula de freno gemela.
GB720966A (en) Pneumatic valves
GB1144136A (en) Improvements in or relating to pressurised dispensing container valves
GB1335024A (en) Compressor control
GB1281281A (en) Brake control system
ES412942A1 (es) Perfeccionamientos en cilindros principales tandem.
GB695382A (en) Improvements in or relating to rotary discharge valves
ATE46666T1 (de) Druckmittelzweikreissteuerventile.
GB1289995A (fr)
JPS57146096A (en) Movable vane type compressor
GB1141835A (en) Improvements in or relating to respiratory apparatus
GB1420729A (en) Pneumatic control device
GB1264173A (fr)
US2083734A (en) Air-shooting apparatus
JPS521281A (en) Length adjusting mode gas spring
GB1395417A (en) Pressure-fluid systems
US3173373A (en) Means for feeding fuel to a combustion chamber
GB1149864A (en) Fluid control valve
GB968605A (en) Process and apparatus for flame scarfing
GB1085763A (en) Valve and fluid actuated machine
GB1424407A (en) In-line valves

Legal Events

Date Code Title Description
ST Notification of lapse