Abstract: A chain driven by two sprockets spaced a short distance apart along their common axial centerline. The chain includes elongated pins that extend beyond the outer surfaces of the chain link plates, on both sides, by a distance about equal to the width of the spaced apart sprockets. The chain is aligned midway between the sprockets, and the sprocket teeth drive on the extended portion of the chain pins. Where a flight is attached to the chain links, the pins are extended still further, to fit into the indentations or holes in the flights. This provides an exposed length of each pin in alignment with the sprocket on each side for driving purposes. The chain has a piece extending between the plates to reduce the likelihood of a pin extending further outside of one side plate or the other. A shoulder on the pin further reduces the likelihood of this happening.

Abstract: A chain driven by two sprockets spaced a short distance apart along their common axial centerline. The chain includes elongated pins that extend beyond the outer surfaces of the chain link plates, on both sides, by a distance about equal to the width of the spaced apart sprockets. The chain is aligned midway between the sprockets, and the sprocket teeth drive on the extended portion of the chain pins. Where a flight is attached to the chain links, the pins are extended still further, to fit into the indentations or holes in the flights. This provides an exposed length of each pin in alignment with the sprocket on each side for driving purposes. The chain has a piece extending between the plates to reduce the likelihood of a pin extending further outside of one side plate or the other. A shoulder on the pin further reduces the likelihood of this happening.

Abstract: A movable machine includes a frame, an electrical motor on the fame, a cable electrically connected to the motor and adapted to be connected to a source of power, and a sheave bracket assembly coupled to the frame. The sheave bracket assembly includes two mounting plates, two spaced apart sheaves rotatably mounted on the mounting plates, a hinged portion coupled to the mounting plates and pivotally coupled to the frame, and at least one biasing member located between the frame and the mounting plates that biases the mounting plates and sheaves toward a first position.

Abstract: A method and apparatus for controlling a mobile machine during start-up. The mobile machine has a prime power source, a means for transport, and at least one auxiliary system; the means for transport and the at least one auxiliary system are controllably driven by the prime power source. The method and apparatus includes determining an actual angle of steering of the mobile machine, comparing the actual angle of steering with a desired angle of steering, starting the prime power source, enabling engagement of the at least one auxiliary system, and disabling engagement of the means for transport in response to the difference between the actual angle of steering and the desired angle of steering being greater than a predetermined threshold value.