ES274080A1 - A prolonging device for mining apparatus devices (Machine-translation by Google Translate, not legally binding) - Google Patents
A prolonging device for mining apparatus devices (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES274080A1 ES274080A1 ES0274080A ES274080A ES274080A1 ES 274080 A1 ES274080 A1 ES 274080A1 ES 0274080 A ES0274080 A ES 0274080A ES 274080 A ES274080 A ES 274080A ES 274080 A1 ES274080 A1 ES 274080A1
- Authority
- ES
- Spain
- Prior art keywords
- translation
- machine
- legally binding
- google translate
- windows
- 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
- 238000005065 mining Methods 0.000 title 1
- 230000000295 complement effect Effects 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated 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)
- Basic Packing Technique (AREA)
Abstract
A prolongation device for a shoring apparatus in mines, characterized by a beam terminated by complementary connecting elements, male and female, the female element having a flange provided with a transverse axis and perforated with windows behind this axis, while the The male element has the shape of a hook that can be hooked on the axis of the flange of another extension device, in such a way that the end of this hook is located in front of windows, which allows to tighten the extension device to the ceiling thanks to a key fitted in said windows and resting on a ramp at said end. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR855278A FR1291038A (en) | 1961-03-10 | 1961-03-10 | Articulated extension for mine support system |
Publications (1)
Publication Number | Publication Date |
---|---|
ES274080A1 true ES274080A1 (en) | 1962-04-16 |
Family
ID=8750616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0274080A Expired ES274080A1 (en) | 1961-03-10 | 1962-01-26 | A prolonging device for mining apparatus devices (Machine-translation by Google Translate, not legally binding) |
Country Status (2)
Country | Link |
---|---|
ES (1) | ES274080A1 (en) |
FR (1) | FR1291038A (en) |
-
1961
- 1961-03-10 FR FR855278A patent/FR1291038A/en not_active Expired
-
1962
- 1962-01-26 ES ES0274080A patent/ES274080A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1291038A (en) | 1962-04-20 |
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