Mine roof and rib support device
View Patent ↗A mine roof and rib support can be a support member having a roof support arm and a rib support arm, wherein the roof support arm is provided at an angle to the rib support arm. An aperture for a roof bolt is provided through the support member adjacent an intersection of the roof support arm and the rib support arm. A bearing plate having an upper edge and a lower edge, and a through-hole provided therebetween, can be provided wherein the upper and lower edges are positioned in abutment with the roof and rib support arms, respectively, to simultaneously apply force to each arm when a roof bolt is installed through each of the bearing plate and the support member. A flange can be provided at a distal end of one or both of the roof and rib support arms, each flange projecting toward the mine roof or rib.
1. A mine roof and rib support comprising:
a. a support member having a roof support arm and a rib support arm, said roof support arm provided at an angle to said rib support arm; and
b. an aperture through said support member for receiving a mine roof bolt, said aperture located at a junction between said roof support arm and said rib support arm.
2. The apparatus of claim 1 further comprising a flange provided on at least one of said roof support arm and said rib support arm, said flange projecting toward the mine roof or rib.
3. The apparatus of claim 2 further comprising said flange provided at a distal end of each of said roof and rib support arms, each flange projecting toward the mine roof or rib.
4. The apparatus of claim 3 wherein said support member comprises a metal channel having a C-shaped cross-section.
5. The apparatus of claim 4 wherein said metal channel is bent to form each of said roof and rib support arms, and each of said flanges is bent from said distal ends of each of said roof and rib support arms.
6. A mine roof and rib support comprising:
a. a support member having a roof support arm and a rib support arm, said roof support arm provided at an angle to said rib support arm; and
b. an aperture through said support member for receiving a mine roof bolt, said aperture located adjacent a junction between said roof support arm and said rib support arm; and
c. a bearing plate having an upper edge, a lower edge and a through- hole provided between said upper and lower edges;
wherein said upper and lower edges are positioned in abutment with said roof and rib support arms, respectively, when said through-hole is operatively aligned with said aperture for installation of a roof bolt through each of said bearing plate and said support member, such that said upper and lower edges apply force to said roof and rib support arms, respectively, when force is applied to said bearing plate by installation of the roof bolt.
7. The apparatus of claim 6 further comprising a flange provided on at least one of said roof support arm and said rib support arm, said flange projecting toward the mine roof or rib.
8. The apparatus of claim 7 further comprising said flange provided at a distal end of each of said roof and rib support arms, each flange projecting toward the mine roof or rib.
9. The apparatus of claim 8 wherein said support member comprises a metal channel having a C-shaped cross-section.
10. The apparatus of claim 9 wherein said metal channel is bent to form each of said roof and rib support arms, and each of said flanges is bent from said distal ends of each of said roof and rib support arms.