Some embodiments of the disclosure are directed to a dolly for unrolling the payload wrapped on a reel from a helicopter. In some embodiments, the dolly includes one or more of a main frame, a fairlead frame, and a reel shaft. In some embodiments, the main frame is configured to hold the reel shaft. In some embodiments, the main frame is configured to hold the cable reel. In some embodiments, the fairlead frame is pivotably attached to the main frame. In some embodiments, the fairlead frame is configured to guide a cable away from the cable reel. In some embodiments, the dolly further comprises a tether configured to limit a pivot range between the main frame and the fairlead frame. In some embodiments, the dolly further comprises a brake belt. In some embodiments, the brake belt is configured to limit a rotation of the cable reel about the reel shaft.

Some embodiments of the disclosure are directed to a dolly for unrolling the payload wrapped on a reel from a helicopter. In some embodiments, the dolly includes one or more of a main frame, a fairlead frame, and a reel shaft. In some embodiments, the main frame is configured to hold the reel shaft. In some embodiments, the main frame is configured to hold the cable reel. In some embodiments, the fairlead frame is pivotably attached to the main frame. In some embodiments, the fairlead frame is configured to guide a cable away from the cable reel. In some embodiments, the dolly further comprises a tether configured to limit a pivot range between the main frame and the fairlead frame. In some embodiments, the dolly further comprises a brake belt. In some embodiments, the brake belt is configured to limit a rotation of the cable reel about the reel shaft.

A chain-install apparatus for facilitating installation of a chain into a conveyor system (e.g., a conveyor system for a cathode stripping machine) comprises: a support structure; a hub assembly coupled to the support structure, a brake assembly operably coupled to the hub assembly, and an attachment arrangement configured to facilitate lifting of the chain-install apparatus by a crane.

A chain-install apparatus for facilitating installation of a chain into a conveyor system (e.g., a conveyor system for a cathode stripping machine) comprises: a support structure; a hub assembly coupled to the support structure, a brake assembly operably coupled to the hub assembly, and an attachment arrangement configured to facilitate lifting of the chain-install apparatus by a crane.

A retainer disk for a wire spool provides a large, rectangular aperture with rounded corners at its center, to accommodate the spindle which forms the axis of the spool. The disk further provides a circular small aperture near its rim, into which the end of the wire may be inserted for storage of the spool, and an erasable label which may be used to identify the type of wire on the spool. The disk is provided in a range of sizes to fit any wire spool, and may be reused once a spool has been expended.