Abstract: Mining systems include a continuous miner; a movable roof support; a roof bolter; and a flexible conveyor train positioned with its front end located under the roof support and extending underneath the roof bolter.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some mining operations use a powered roof support comprising: a canopy configured to directly contacts a roof of a mine; a base configured to rest on a floor of the mine, the base comprising a spill plate and a push cylinder with a maximum stroke greater than 11 feet; and a pair of hydraulic legs attaching the canopy to the base.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems for use in a mining operation include: a continuous miner configured to cut material from a face; a plurality of powered roof supports positioned along the face; and a guidance system operable to receive a location signal based on relative location of the continuous miner along the face and to send a control signal to the plurality of powered roof supports positioned along the face.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some systems include: a main gate; and a tailgate connected to the maingate by an active mine face; wherein the active mine face extends at an angle between 95° and 135° relative to the maingate.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some methods for use in a mining operation include advancing a continuous miner towards an angled face that extends from a headgate to a tailgate; and performing an angled cutting turn in which the continuous miner turns less than 90°.

Abstract: Methods and equipment have been developed that combine the use of continuous miners, flexible conveyor trains, and longwall mining techniques to provide flexible and efficient removal of resources from subterranean formations. Some methods for use in a mining operation include advancing a continuous miner towards an angled face that extends from a headgate to a tailgate; and performing an angled cutting turn in which the continuous miner turns less than 90°.

Abstract: A fold-down work surface includes a planar top frame having first and second opposite ends and mounted thereto at least one parallelogram frame lying in a vertical plane orthogonal to a wall. The top frame is horizontal when deployed and vertical when raised into a storage position adjacent the wall. Each parallelogram frame is mounted to a corresponding slide. The top frame, a lower longitudinal element, the slide, and a vertical leg for each parallelogram frame form a frame pivotable in the corresponding vertical plane. Each slide is slidably mounted in a vertical track which is mountable to the wall. The top frame is constrained to rotate about the upper end of a primary brace member. The lower end of the primary brace member is pivotally mounted to the wall.

Abstract: A fold-down work surface includes a planar top frame having first and second opposite ends and mounted thereto at least one parallelogram frame lying in a vertical plane orthogonal to a wall. The top frame is horizontal when deployed and vertical when raised into a storage position adjacent the wall. Each parallelogram frame is mounted to a corresponding slide. The top frame, a lower longitudinal element, the slide, and a vertical leg for each parallelogram frame form a frame pivotable in the corresponding vertical plane. Each slide is slidably mounted in a vertical track which is mountable to the wall. The top frame is constrained to rotate about the upper end of a primary brace member. The lower end of the primary brace member is pivotally mounted to the wall.