A high angle conveyor includes a first conveyor belt, a second conveyor belt, a first idler roller engaged with the first conveyor belt, the first idler roller being coupled to a first pivot frame, and a second idler roller engaged with the second conveyor belt, the second idler roller being coupled to a second pivot frame. The first conveyor belt and the second conveyor belt define an inflection point between the first idler roller and the second idler roller. The first and second pivot frames are pivotable from an initial position toward an expanded position in response to a lump of material larger than a specified capacity of the high angle conveyor passing through the inflection point.

A high angle conveyor includes a first conveyor belt, a second conveyor belt, a first idler roller engaged with the first conveyor belt, the first idler roller being coupled to a first pivot frame, and a second idler roller engaged with the second conveyor belt, the second idler roller being coupled to a second pivot frame. The first conveyor belt and the second conveyor belt define an inflection point between the first idler roller and the second idler roller. The first and second pivot frames are pivotable from an initial position toward an expanded position in response to a lump of material larger than a specified capacity of the high angle conveyor passing through the inflection point.

A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over at least a one-third length of the sloped run. At the portion of the external belt driven by the at least one internal belt, the rate of tension change in the external belt may be configured to be approximately zero or a modest rise. In some embodiments, the longitudinal stiffness of the at least one internal belt may be substantially greater than the external belt's longitudinal stiffness.

A conveyor system, at least a portion of which may traverse a continuous slope sufficiently steep such that tensile forces associated with overcoming the effects of the slope are several times larger per unit length of run than tensile forces per unit length of run due to main frictional resistance of the conveyor system, may include a belt-on-belt drive. The belt-on-belt drive may include at least one internal belt configured to operably engage the carry belt of the conveyor system so as to frictionally drive the carry belt over at least a one-third length of the sloped run. At the portion of the external belt driven by the at least one internal belt, the rate of tension change in the external belt may be configured to be approximately zero or a modest rise. In some embodiments, the longitudinal stiffness of the at least one internal belt may be substantially greater than the external belt's longitudinal stiffness.

A conveyor assembly includes a first conveyor belt that defines a centerline extending in a conveying direction and a second conveyor belt that at least partially overlaps the first conveyor belt in the conveying direction. The conveyor assembly further includes a magnetic coupling that magnetically couples the first conveyor belt to the second conveyor belt.

A high angle conveyor includes a frame, a lower conveyor belt, an upper conveyor belt, and a pressing assembly. The pressing assembly includes a bracket coupled to the frame, a roller supported on the bracket, a spring support coupled to the frame, a spring positioned between the bracket and the spring support, and a spring retainer coupling the spring to at least one selected from the group of the frame, the bracket, and the spring support. The spring urges the bracket and the roller toward the upper conveyor belt such that the pressing assembly biases the upper conveyor belt toward the lower conveyor belt.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.

A high-angle conveyor system is provided. The high-angle conveyor system includes a primary conventional conveyor, a lower high-angle conveyor and an upper high-angle conveyor. The lower high-angle conveyor is disposed within the primary conveyor. Therefore, a portion of the primary conveyor is sandwiched in between the lower high-angle conveyor and the upper high-angle conveyor. Both of the lower high-angle conveyor and the upper high-angle conveyor are disposed at a high angle. Material is transported along the primary conveyor and then transported at a high angle in between the lower high-angle conveyor, the primary conveyor, and the upper high-angle conveyor.