Abstract: A remote controlled slack pulling log skidding carriage is provided for feeding a slack drag line toward a log to be skidded. A drive sheave rotatably mounted in the carriage is operated by a hydraulic motor. The fluid to operate the hydraulic motor is stored in one or more accumulators, and a radio controlled valve starts and stops the flow of fluid to the motor. A mechanically operated hydraulic pump also is provided to recharge the accumulators during a skidding operation.

Abstract: A continuous, single line, traction driven cable transportation system, intended for logging applications but not limited thereto. The system is open, such that line can be added to it at any time, whether during rigging, or during operation. Thus, theoretically, there is no limit to the system's longitudinal or lateral distance capabilities. The carriage maintains a fixed position during lateral yarding phases of operation and the system may be tightened or loosened at will.Two modifications of the system described above; a noncontinuous, single line, traction driven cable transportation system. The modified systems contain a skidding winch on which only a fixed amount of skidding line is wound, thereby limiting the lateral skidding distance capability of the system.