| 摘要 |
The present invention is a device for removing boulders loosened by an explosion, from the hanging roof of a mining gallery. The device is a pole which supports a pneumatic hammer and a striking head at one end thereof and a gripping handle at its opposite end. The handle has a trigger mechanism for remote control of the pneumatic hammer. The inner section of the striking head is a formation of hollow, honeycombed cells, for reducing the weight of the striking head. |
