GB1126902A - Improvements relating to hydraulic control systems - Google Patents

Improvements relating to hydraulic control systems

Info

Publication number
GB1126902A
GB1126902A GB43190/64A GB4319064A GB1126902A GB 1126902 A GB1126902 A GB 1126902A GB 43190/64 A GB43190/64 A GB 43190/64A GB 4319064 A GB4319064 A GB 4319064A GB 1126902 A GB1126902 A GB 1126902A
Authority
GB
United Kingdom
Prior art keywords
piston
valves
piston rod
oct
rollers
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
GB43190/64A
Inventor
Frederick James Fuell
John Lawrence Fowler
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.)
WFEL Ltd
Original Assignee
Fairey Engineering Ltd
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 Fairey Engineering Ltd filed Critical Fairey Engineering Ltd
Priority to GB43190/64A priority Critical patent/GB1126902A/en
Priority to DE19651458677 priority patent/DE1458677A1/en
Priority to US499777A priority patent/US3363515A/en
Priority to BE671322A priority patent/BE671322A/xx
Publication of GB1126902A publication Critical patent/GB1126902A/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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • E21D23/26—Hydraulic or pneumatic control
    • 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
    • Y10T137/86389—Programmer or timer
    • Y10T137/86445—Plural, sequential, valve actuations
    • 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
    • Y10T137/86911—Sequential distributor or collector type

Abstract

1,126,902. Valves. FAIREY ENG. Ltd. 19 Oct., 1965 [22 Oct., 1964], No. 43190/64. Heading F2V. [Also in Divisions B3 and F1] A plurality of poppet valves 25A, 26A, 27A each has an associated rocker 32 pivotable to open the valve against the action of a return spring 37 when rollers 30 mounted on the end of piston rod 24 are moved into engagement therewith by pressurization of the full area side of its piston. The rollers 30 are mounted on a link 28 pivoted to the end of the piston rod 24 so that when the piston is returned by pressure fluid continuously supplied to the annular side of the piston the link pivots in a clock-wise direction and does not operate the valves. The rockers 32 are secured to shafts 33, Fig. 6 (not shown) having heads (40) accessible by opening a door (41) to allow a key to be inserted in recesses therein for manually operating the valves. To prevent actuation of the valves by the piston rod 24 during manual operation, a valve in the supply line to the piston may be closed by the opening movement of the door (41).
GB43190/64A 1964-10-22 1964-10-22 Improvements relating to hydraulic control systems Expired GB1126902A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB43190/64A GB1126902A (en) 1964-10-22 1964-10-22 Improvements relating to hydraulic control systems
DE19651458677 DE1458677A1 (en) 1964-10-22 1965-10-21 Hydraulic device for the automatic control of movement processes in the case of moving hydraulic support frames, which are used in particular to support mines
US499777A US3363515A (en) 1964-10-22 1965-10-21 Control system for movable roof supports and the like
BE671322A BE671322A (en) 1964-10-22 1965-10-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB43190/64A GB1126902A (en) 1964-10-22 1964-10-22 Improvements relating to hydraulic control systems

Publications (1)

Publication Number Publication Date
GB1126902A true GB1126902A (en) 1968-09-11

Family

ID=10427700

Family Applications (1)

Application Number Title Priority Date Filing Date
GB43190/64A Expired GB1126902A (en) 1964-10-22 1964-10-22 Improvements relating to hydraulic control systems

Country Status (4)

Country Link
US (1) US3363515A (en)
BE (1) BE671322A (en)
DE (1) DE1458677A1 (en)
GB (1) GB1126902A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5701801A (en) * 1995-10-18 1997-12-30 Mcdonnell Douglas Corporation Mechanically redundant actuator assembly
DE102009030749B4 (en) * 2009-06-26 2017-08-10 Getrag Ford Transmissions Gmbh Automated transmission and method for operating an automated transmission
CN111911216B (en) * 2020-06-19 2022-02-11 太原理工大学 Directional flow valve with continuous flow adjusting function and control method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1201174A (en) * 1957-08-10 1959-12-29 Gewerk Eisenhuette Westfalia Method and device for controlling a hydraulic support, usable in particular in mines
GB991007A (en) * 1962-05-25 1965-05-05 Dowty Mining Equipment Ltd Mining apparatus
GB1063456A (en) * 1964-05-15 1967-03-30 Dowty Mining Equipment Ltd Roof support assembly suitable for use in mines

Also Published As

Publication number Publication date
DE1458677A1 (en) 1968-11-21
US3363515A (en) 1968-01-16
BE671322A (en) 1966-02-14

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