Patent ID: 8678173
Filing Date: 2014-03-25
Classification: B65G,E21F

Abstract:
1. A rectangular recovery beam for highwall mining having a left side, a right side, a top, a bottom, a front end and a back end, comprising: a main channel spanning the full length of the recovery beam from the front end to the back end of the recovery beam, the main channel being mostly enclosed and configured to receive two main augers oriented lengthwise inside the main channel; a left side channel, the left side channel being closer to the left side of the recovery beam than the main channel, the left side channel being mostly enclosed, wherein the left side channel is at least partially separated from the main channel by a left partition wall, and wherein the left side channel is configured to receive a left side auger oriented lengthwise inside the left side channel; a right side channel, the right side channel being closer to the right side of the recovery beam than the main channel, the right side channel being mostly enclosed, wherein the right side channel is at least partially separated from the main channel by a right partition wall, wherein the right side channel is configured to receive a right side auger oriented lengthwise inside the right side channel; a left side opening in the left side of the recovery beam that is continuous with the left side channel; a right side opening in the right side of the recovery beam that is continuous with the right side channel; a left inner opening in the left side of the main channel between the left side channel and the main channel; and a right inner opening in the right side of the main channel between the right side channel and the main channel, wherein the rectangular recovery beam has its longest dimension from the front end to the back end of the recovery beam.