GB1118088A - A hydraulically operable pulling jack for moving structural parts in underground workings - Google Patents
A hydraulically operable pulling jack for moving structural parts in underground workingsInfo
- Publication number
- GB1118088A GB1118088A GB4053165A GB4053165A GB1118088A GB 1118088 A GB1118088 A GB 1118088A GB 4053165 A GB4053165 A GB 4053165A GB 4053165 A GB4053165 A GB 4053165A GB 1118088 A GB1118088 A GB 1118088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- fluid
- valve
- piston
- pulling jack
- 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
- 230000003245 working effect Effects 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 5
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
- E21F13/086—Armoured conveyors shifting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
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)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Actuator (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
1,118,088. Hydraulic apparatus. KLOCKNER-WERKE A.G. Sept. 23, 1965 [March 18, 1965], No. 40531/65. Heading F1P. [Also in Division B8] An hydraulically operated pulling jack (see Division B8) comprises two axially parallel cylinders a', a" arranged to act alternately on a chain (d), Fig. 1 (not shown) to give a continuous pull. A pump m supplies pressure fluid through a valve o say to cylinder a' through a pipe p with a valve q in appropriate position by pressure fluid entering pipe r. Fluid displaced from a' flows to a" via pipe s. Fluid thus displaced from a" flows through pipe t to the sump n. At the end of its stroke the piston of cylinder a' reverses the valve v and admits pressure fluid to a pipe w for shifting over valve q. Fluid-pressure in pipe p is thus admitted to pipe t causing the piston of a" to be extended, x is a conventional accumulator. The system may be modified to extend both piston rods simultaneously (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK55568A DE1212475B (en) | 1965-03-18 | 1965-03-18 | Hydraulically operated pulling device for moving components in underground operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1118088A true GB1118088A (en) | 1968-06-26 |
Family
ID=7227507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4053165A Expired GB1118088A (en) | 1965-03-18 | 1965-09-23 | A hydraulically operable pulling jack for moving structural parts in underground workings |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE670192A (en) |
| DE (1) | DE1212475B (en) |
| GB (1) | GB1118088A (en) |
| NL (1) | NL6511549A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476578A (en) * | 2022-01-18 | 2022-05-13 | 宁夏天地奔牛实业集团有限公司 | Automatic tension control method for scraper conveyor chain based on load following control |
-
1965
- 1965-03-18 DE DEK55568A patent/DE1212475B/en active Pending
- 1965-09-03 NL NL6511549A patent/NL6511549A/xx unknown
- 1965-09-23 GB GB4053165A patent/GB1118088A/en not_active Expired
- 1965-09-27 BE BE670192D patent/BE670192A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476578A (en) * | 2022-01-18 | 2022-05-13 | 宁夏天地奔牛实业集团有限公司 | Automatic tension control method for scraper conveyor chain based on load following control |
| CN114476578B (en) * | 2022-01-18 | 2024-02-06 | 宁夏天地奔牛实业集团有限公司 | Automatic tensioning control method for scraper chain based on load following control |
Also Published As
| Publication number | Publication date |
|---|---|
| BE670192A (en) | 1966-01-17 |
| DE1212475B (en) | 1966-03-17 |
| NL6511549A (en) | 1966-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1347758A (en) | Hydraulic device | |
| GB665310A (en) | Improvements in or relating to hydraulic pressure transformers | |
| GB1228058A (en) | ||
| GB1342548A (en) | Hydraulic jacks | |
| GB1452709A (en) | Automatic safety gatevalve | |
| GB1026419A (en) | Improvements in hydraulic pis ton and cylinder combinations | |
| GB1370643A (en) | Fluid pressure intensifying devices | |
| GB1118088A (en) | A hydraulically operable pulling jack for moving structural parts in underground workings | |
| GB1425129A (en) | Hydraulic forging press | |
| GB1480753A (en) | Hydraulically-operated devices | |
| GB1310645A (en) | Hydraulic pressure transformer | |
| GB1207190A (en) | Improvements in or relating to the manufacture of concrete elements | |
| GB933874A (en) | Hydraulic drive for oscillating the moulds of continuous casting machines | |
| GB1449020A (en) | Multistage hydraulic telescopic lifting jack | |
| GB1239648A (en) | ||
| GB997764A (en) | Improvements in or relating to continuous steel-making | |
| EP0236589A3 (en) | Hydraulic forging machine | |
| GB1067927A (en) | Reciprocating compressors and pumps | |
| US2306572A (en) | Quarrying apparatus | |
| FR2303978A1 (en) | Hydraulically operated ram - with passages in piston rod for fluid to downstream receiver | |
| SU361106A1 (en) | ALL-UNION I | |
| JPS5798466A (en) | Cable traction machine | |
| GB1207202A (en) | Hydraulic operating device for the ejecting device of a moulding machine | |
| GB956482A (en) | A hydraulic pit prop | |
| GB790482A (en) | Thrust mechanism for the guide rails of mining apparatus |