The first 3 pictures appear to have what was referred to as a drag. That is the elevator type piece that has the chain and flighting in it. Usually used to unload ear corn or silage from a wagon to an elevator or blower. They were easy to move when mounted on an elevator or some had wheels. There may be some value in it. The last picture has that Square D box, that is often referred to as a contactor or a starter. Basically a high amperage switch. Might find an electrical person to find what it is worth. New they are quite expensive.