FIELD: mining industry. SUBSTANCE: interframe connections are made of two pieces of special cross-section joined together by electric welding of side walls. They are installed on roof beams of preceding and subsequent frames of support with channel down at points fixed by bosses welded to side walls of special cross-section bars. EFFECT: high efficiency. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FRAMED SUPPORT | 1996 |
|
RU2107819C1 |
| SUPPORT FOR DEVELOPMENT WORKINGS | 1996 |
|
RU2116453C1 |
| RECTANGULAR METAL OR COMBINED SUPPORT OF DEVELOPMENT WORKINGS | 1996 |
|
RU2121579C1 |
| SUPPORT FOR DEVELOPMENT WORKINGS | 1997 |
|
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| FRAME SUPPORT | 0 |
|
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| ELEMENTS OF METAL ARCHED SUPPORT IN FORM OF CANTILEVERS, WHICH FORM CANTILEVER PART OF SUPPORT, PROVIDING CONTINUITY OF SUPPORT | 2019 |
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| PLATFORM-LINING JACK SYSTEM | 2018 |
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RU2708130C1 |
| FRAMEWORK-TYPE METAL ROOF SUPPORT OF SPECIAL ROLLED SHAPE | 0 |
|
SU1070315A1 |
| METAL SUPPORT FOR MINE WORKINGS | 1991 |
|
RU2027011C1 |
