FR1069734A - Control device for successive movements - Google Patents

Control device for successive movements

Info

Publication number
FR1069734A
FR1069734A FR1069734DA FR1069734A FR 1069734 A FR1069734 A FR 1069734A FR 1069734D A FR1069734D A FR 1069734DA FR 1069734 A FR1069734 A FR 1069734A
Authority
FR
France
Prior art keywords
control device
successive movements
movements
successive
control
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
Other languages
French (fr)
Inventor
Rubin Grinberg
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.)
APPLIC HYDRAULIQUES ET ELECTR
Original Assignee
APPLIC HYDRAULIQUES ET ELECTR
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 APPLIC HYDRAULIQUES ET ELECTR filed Critical APPLIC HYDRAULIQUES ET ELECTR
Application granted granted Critical
Publication of FR1069734A publication Critical patent/FR1069734A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
FR1069734D 1952-12-06 1952-12-06 Control device for successive movements Expired FR1069734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1069734T 1952-12-06

Publications (1)

Publication Number Publication Date
FR1069734A true FR1069734A (en) 1954-07-12

Family

ID=9604384

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1069734D Expired FR1069734A (en) 1952-12-06 1952-12-06 Control device for successive movements

Country Status (1)

Country Link
FR (1) FR1069734A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075518B (en) * 1960-02-18 Hermann Schwarz Kommanditgesellschaft, Wattenscheid Migrating metallic lining for mining operations in mines
DE1156038B (en) * 1959-11-24 1963-10-24 Houilleres Bassin Du Nord Striding support frame for the expansion of underground spaces, especially longwall mining
DE1177099B (en) * 1956-02-28 1964-09-03 Dobson Ltd W E & F Migrating hydraulic longwall mining
DE1179530B (en) * 1962-02-14 1964-10-15 Karl Theodor Jasper Expansion unit for migrating longwall mining
DE1277786B (en) * 1958-09-18 1968-09-19 Bosch Gmbh Robert Control unit for hydraulic pit extensions

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1075518B (en) * 1960-02-18 Hermann Schwarz Kommanditgesellschaft, Wattenscheid Migrating metallic lining for mining operations in mines
DE1177099B (en) * 1956-02-28 1964-09-03 Dobson Ltd W E & F Migrating hydraulic longwall mining
DE1277786B (en) * 1958-09-18 1968-09-19 Bosch Gmbh Robert Control unit for hydraulic pit extensions
DE1156038B (en) * 1959-11-24 1963-10-24 Houilleres Bassin Du Nord Striding support frame for the expansion of underground spaces, especially longwall mining
DE1179530B (en) * 1962-02-14 1964-10-15 Karl Theodor Jasper Expansion unit for migrating longwall mining

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