| 摘要 |
This invention is a machine assembly, including a post, an earth excavating machine and a crane interchangeably mountable on the post; the earth excavating machine including a sleeve enclosure around the post, a radially extending ground surface toothed scraper attached to the enclosure, a vertical screw inside the enclosure, and a loose earth conveyor belt extending from the sleeve, and the crane including a horizontal arm, a structure that rotates or elevates the arm and a cable assembly that suspends the arm adjustably from the post.
|
