GB1126902A - Improvements relating to hydraulic control systems - Google Patents
Improvements relating to hydraulic control systemsInfo
- 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
Links
- 239000012530 fluid Substances 0.000 abstract 1
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
- 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
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)
- Fluid-Pressure Circuits (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
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).
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 |
| US499777A US3363515A (en) | 1964-10-22 | 1965-10-21 | Control system for movable roof supports and the like |
| 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 |
| 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)
| 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)
| 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 |
| GB991012A (en) * | 1962-05-25 | 1965-05-05 | Dowty Mining Equipment Ltd | Roof support assembly |
| GB1063456A (en) * | 1964-05-15 | 1967-03-30 | Dowty Mining Equipment Ltd | Roof support assembly suitable for use in mines |
-
1964
- 1964-10-22 GB GB43190/64A patent/GB1126902A/en not_active Expired
-
1965
- 1965-10-21 DE DE19651458677 patent/DE1458677A1/en active Pending
- 1965-10-21 US US499777A patent/US3363515A/en not_active Expired - Lifetime
- 1965-10-22 BE BE671322A patent/BE671322A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1458677A1 (en) | 1968-11-21 |
| BE671322A (en) | 1966-02-14 |
| US3363515A (en) | 1968-01-16 |
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