NL6600072A - - Google Patents

Info

Publication number
NL6600072A
NL6600072A NL6600072A NL6600072A NL6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A NL 6600072 A NL6600072 A NL 6600072A
Authority
NL
Netherlands
Application number
NL6600072A
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 filed Critical
Priority to NL6600072A priority Critical patent/NL6600072A/xx
Priority to DE19671533767 priority patent/DE1533767A1/en
Priority to GB362/67A priority patent/GB1158646A/en
Priority to US607059A priority patent/US3437011A/en
Priority to FR1585864D priority patent/FR1585864A/fr
Publication of NL6600072A publication Critical patent/NL6600072A/xx

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
    • 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/18—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices of advancing mechanisms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/86919—Sequentially closing and opening alternately seating flow controllers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87169—Supply and exhaust
    • Y10T137/87217—Motor
    • Y10T137/87225—Fluid motor
NL6600072A 1966-01-04 1966-01-04 NL6600072A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NL6600072A NL6600072A (en) 1966-01-04 1966-01-04
DE19671533767 DE1533767A1 (en) 1966-01-04 1967-01-02 Device for pressing an extraction system for raw materials
GB362/67A GB1158646A (en) 1966-01-04 1967-01-03 Hydraulic Ram and Roof Supporting Mechanisms for use in Mechanical Mining
US607059A US3437011A (en) 1966-01-04 1967-01-03 Installation for controlling a pushing cylinder at a working face with power advanced supports
FR1585864D FR1585864A (en) 1966-01-04 1967-01-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6600072A NL6600072A (en) 1966-01-04 1966-01-04

Publications (1)

Publication Number Publication Date
NL6600072A true NL6600072A (en) 1967-07-05

Family

ID=19795381

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6600072A NL6600072A (en) 1966-01-04 1966-01-04

Country Status (5)

Country Link
US (1) US3437011A (en)
DE (1) DE1533767A1 (en)
FR (1) FR1585864A (en)
GB (1) GB1158646A (en)
NL (1) NL6600072A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1187208A (en) * 1966-05-25 1970-04-08 Dobson Ltd W E & F Improvements in or relating to a Pilot-operable Hydraulic Valve
DE1916334A1 (en) * 1969-03-29 1970-10-08 Teves Gmbh Alfred Control valve in the form of a seat valve
US4026193A (en) * 1974-09-19 1977-05-31 Raymond International Inc. Hydraulically driven hammer system
FR2519397B1 (en) * 1981-12-31 1986-09-19 Herckelbout Jacques INTERMITTENT DRIVE OF A SHAFT
AT391348B (en) * 1988-12-29 1990-09-25 Boehler Pneumatik Int Gmbh CONTROL VALVE FOR A COUNTERBACK STITCH HOLE DRILL
US8205632B2 (en) * 2008-05-02 2012-06-26 Bifold Fluidpower Limited Fluid flow control device
US20090283160A1 (en) 2008-05-02 2009-11-19 James Fishwick Fluid flow control device and control circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1032021A (en) * 1964-01-14 1966-06-08 Dowty Mining Equipment Ltd Advanceable roof support assembly
GB1022469A (en) * 1964-02-11 1966-03-16 Dowty Mining Equipment Ltd Roof support assembly suitable for use in mines

Also Published As

Publication number Publication date
DE1533767A1 (en) 1970-07-23
GB1158646A (en) 1969-07-16
FR1585864A (en) 1970-02-06
US3437011A (en) 1969-04-08

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