Abstract: A tool is disclosed for alignment of forks in a wheeled vehicle. The tool includes a plurality of connecting members, each having a receiving cup, which is configured to receive the curvature of fork tubes of the forks of the vehicle, and a slide bar which attaches to a portion of the receiving cup. The connecting members are held in slidable relation to each other by at least one fastener when the fastener is loosened. The fastener can be tightened to lock the connecting members in fixed position relative to each other to capture the spatial separation dimension between the forks at a point along their length. Also disclosed is a method for achieving parallelism of forks in a wheeled vehicle.

Abstract: An emergency control system for selectively activating and deactivating an apparatus. The system includes a fiber optic transmitter for emitting radiation and a fiber optic receiver for receiving and measuring a wavelength and an intensity of the radiation. A manually-operated fiber optic switch is placed in optical communication with the fiber optic transmitter and the fiber optic receiver. In operation, the switch is selectively actuated, thereby selectively opening and closing a fiber optic circuit defined by the transmitter, receiver, and the switch. The system further includes a relay controller in communication with the fiber optic receiver, such that the relay controller is actuated when the fiber optic receiver receives a predetermined wavelength and intensity of radiation from the transmitter. When the relay controller is actuated, it allows a signal to pass through the relay to a point of use.