GB946120A - Improvements in hydraulically operated jacks - Google Patents
Improvements in hydraulically operated jacksInfo
- Publication number
- GB946120A GB946120A GB3938160A GB3938160A GB946120A GB 946120 A GB946120 A GB 946120A GB 3938160 A GB3938160 A GB 3938160A GB 3938160 A GB3938160 A GB 3938160A GB 946120 A GB946120 A GB 946120A
- Authority
- GB
- United Kingdom
- Prior art keywords
- beukenberg
- aperture
- casing
- cylinder
- hydraulically operated
- 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
- 238000004873 anchoring Methods 0.000 abstract 1
- 230000035939 shock Effects 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
946,120. Hydraulic pushing and pulling jacks. H. BEUKENBERG, H. BEUKENBERG, and K. BEUKENBERG, [trading as MASCHINENFABRIK GLUCKAUF GUNTHER KLERNER]. Nov. 16, 1960 [April 14, 1960], No. 39381/60. Heading B8J. [Also in Division F1] In order to absorb shock loads during anchoring or advancing a mine face conveyer 6 by an hydraulic ram, there is provided a resiliently compressible accumulator, such as a rubber sac 14, containing a gas under pressure and mounted in a casing 8 which is secured to the rear end of the ram cylinder 1, the interiors of the casing 8 and the cylinder 1 being connected by an aperture 12 in an end wall 11. The aperture 12 is provided with a fitting 13 to prevent its closure by the piston.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEM0034664 | 1960-04-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB946120A true GB946120A (en) | 1964-01-08 |
Family
ID=7302078
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3938160A Expired GB946120A (en) | 1960-04-14 | 1960-11-16 | Improvements in hydraulically operated jacks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB946120A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1229972B (en) * | 1964-10-28 | 1966-12-08 | Gewerk Eisenhuette Westfalia | Drag ram for the tensioning of return cylinders |
-
1960
- 1960-11-16 GB GB3938160A patent/GB946120A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1229972B (en) * | 1964-10-28 | 1966-12-08 | Gewerk Eisenhuette Westfalia | Drag ram for the tensioning of return cylinders |
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