Abstract: A sprocket is disclosed. The sprocket may have a cylindrical hub having a first hub end and a second hub end disposed opposite the first hub end. The sprocket may also have a sprocket wheel disposed on the cylindrical hub between the first hub end and the second hub end. The sprocket may further have at least one tooth disposed on the sprocket wheel. The at least one tooth may have a tooth bottom disposed on a root circle. The at least one tooth may also have a tooth flank extending radially outward from the root circle to an outer surface of the at least one tooth. In addition, the at least one tooth may have a flat extending from the tooth bottom at a generally obtuse angle relative to a radial axis of the at least one tooth.

Abstract: A sprocket is disclosed. The sprocket may have a cylindrical hub having a first hub end and a second hub end disposed opposite the first hub end. The sprocket may also have a sprocket wheel disposed on the cylindrical hub between the first hub end and the second hub end. The sprocket may further have at least one tooth disposed on the sprocket wheel. The at least one tooth may have a tooth bottom disposed on a root circle. The at least one tooth may also have a tooth flank extending radially outward from the root circle to an outer surface of the at least one tooth. In addition, the at least one tooth may have a flat extending from the tooth bottom at a generally obtuse angle relative to a radial axis of the at least one tooth.

Abstract: A continuous mining machine may include a stationary boom member, a stationary gear and bearing housing attached to the boom member, and a cutter drum assembly rotatably mounted on the stationary gear and bearing housing. Cutting elements and spray nozzles may be mounted on the rotatable cutter drum assembly. The spray nozzles may be configured to direct liquid spray at a mine face as mine material is dislodged by rotation of the cutter drum assembly and contact of the cutting elements with the mine face. Stationary liquid passageways may be provided through the gear and bearing housing, and rotatable liquid passageways may be provided through the rotatable cutter drum assembly and configured to convey liquid to the spray nozzles.

Abstract: A continuous mining machine may include a stationary boom member, a stationary gear and bearing housing attached to the boom member, and a cutter drum assembly rotatably mounted on the stationary gear and bearing housing. Cutting elements and spray nozzles may be mounted on the rotatable cutter drum assembly. The spray nozzles may be configured to direct liquid spray at a mine face as mine material is dislodged by rotation of the cutter drum assembly and contact of the cutting elements with the mine face. Stationary liquid passageways may be provided through the gear and bearing housing, and rotatable liquid passageways may be provided through the rotatable cutter drum assembly and configured to convey liquid to the spray nozzles.

Abstract: A crawler track device includes a plurality of crawler track pads, each coupled to form a continuous crawler track, wherein each of the plurality of crawler track pads includes at least one mounting hole configured to removably receive at least one of a plurality of caulk devices that each protrude from an upper surface of the crawler track pad.