Abstract: A conveyor system for an open pit mine may include one or more conveyor lines. The conveyor lines are used to transport material from one location in the mine to another location. The material transported may be a waste material, such as overburden material, or coal. The conveyor lines may move from a first end of the pit to a distal second end. When the conveyor lines reach the second end, they may reverse direction and return towards the first end. During this reversal in direction of travel, equipment may be selectively swapped between the conveyor lines. The conveyor lines may include at least one mobile bridge conveyor. Each mobile bridge conveyor may support one or more conveyors that transport the material.

Abstract: A conveyor take-up device may include a carriage, a pulley, a counterweight assembly, at least one connector, and at least one safety restraint. The carriage may be movably joined to a support structure and may support the pulley, which may be configured for operative association with an endless conveyor belt. The counterweight assembly may include a counterweight arm, a tension arm, and a counterweight. The counterweight arm may be pivotally joined to the support structure and configured to move between upper and lower limit positions. The tension arm may extend generally transversely from a first end portion of the counter-weight arm with the counterweight supported by the counterweight arm distal from the tension arm. The connector may be joined to the carriage at one end portion of connector and to the tension arm at a second end portion that is distal the first end portion of the connector.

Abstract: A wheeled hand-cart configured to carry and secure ski equipment and accessories is described. The hand-cart is of the type where a user adjusts an attitude of the hand-cart for rolling travel so as to balance the load about a wheel axis of the hand-cart. The hand-cart includes a load platform extensive enough to carry ski boots as well as a large securable container. Ski mounts joined to the hand-cart carry skis outboard of the load platform at an attitude that provides for ample clearance between the tips of the skis and the user's upper body. The ski-carrying cart may include a voluminous securable container to serve as a mobile ski locker, and locking devices may be provided to secure the skis and the cart. The hand-cart is further configured to partially collapse to a narrow-stance mode adapted for rolling travel in narrow spaces.

Abstract: A material handling machine for transferring discrete loads of excavated, uncrushed waste from an excavator or other excavation equipment to a dumping location beyond the reach of the excavator. The material handling machine may include a mobile bridge supported by two or more crawlers. The material handling machine may further include at least one skip that is selectively moved between a first end and a second end of the mobile bridge. The at least one skip may receive material from excavation equipment at the first end and deposit the received material proximate the second end. When the material handling machine includes two skips, one skip may be positioned above the other skip, or the skips may be positioned to be side-by-side.

Abstract: A two-wheeled cart for carrying snowsports equipment including skis, boots, poles, snowboards, helmets and personal items is disclosed. The cart incorporates a weather-resistant security compartment to serve as a locker for storing street shoes and personal items. The cart has a collapsed mode for compact storage, a narrow-travel mode for use on shuttle buses, and a fully-deployed mode. The mass distribution on a loaded cart is such that the load is balanced, leaving very little vertical load on the user's pulling hand. To secure the cart while it is left unattended, users lock the cart to some structure close to the ski lift by means of an incorporated locking cable and locking mechanism. Additional locking cables provide security against theft of equipment left on the cart. Business methods for renting the carts from ski resort parking lots and other locations are disclosed.

Abstract: A conveyor system for an open pit mine may include one or more conveyor lines. The conveyor lines are used to transport material from one location in the mine to another location. The material transported may be a waste material, such as overburden material, or coal. The conveyor lines may move from a first end of the pit to a distal second end. When the conveyor lines reach the second end, they may reverse direction and return towards the first end. During this reversal in direction of travel, equipment may be selectively swapped between the conveyor lines. The conveyor lines may include at least one mobile bridge conveyor. Each mobile bridge conveyor may support one or more conveyors that transport the material.

Abstract: A two-wheeled cart for carrying snowsports equipment including skis, boots, poles, snowboards, helmets and personal items is disclosed. The cart incorporates a weather-resistant security compartment to serve as a locker for storing street shoes and personal items. The cart has a collapsed mode for compact storage, a narrow-travel mode for use on shuttle buses, and a fully-deployed mode. The mass distribution on a loaded cart is such that the load is balanced, leaving very little vertical load on the user's pulling hand. To secure the cart while it is left unattended, users lock the cart to some structure close to the ski lift by means of an incorporated locking cable and locking mechanism. Additional locking cables provide security against theft of equipment left on the cart. Business methods for renting the carts from ski resort parking lots and other locations are disclosed.