Patent ID: 6619623
Filing Date: 2003-09-16
Classification: B66D

Abstract:
A tool for applying a force to a chain, the tool comprising:a lever; an attachment member pivotally connected to the lever at a first pivot point; two opposed arms pivotally mounted to the lever on opposite sides of the attachment member, each arm having an end adapted to releasably engage and hold the chain; and a linkage between the arms to guide movement of the arms upon reciprocal pivotal movement of the lever with respect to the attachment member, the linkage comprising a link associated with each arm, each link being pivotally connected at one end to one of the arms at a second pivot point, and each link being pivotally connected at the other end to the attachment member, the arms being operable in a cycle in which one of the arms is maintained stationary to engage and hold the chain while the other arm is released from the chain and moved generally parallel to the chain past the stationary arm to engage and hold a new location on the chain whereupon each arm assumes the role of the other arm to complete the cycle.