Complex sentence: The catcher (usually) caught the rivet in a leather or wooden bucket with an ash-lined bottom, placed the glowing hot rivet into the hole to be riveted, and then quickly turned around to await the next rivet.
Split into simpler sentences: The catcher (usually) caught the rivet in a leather or wooden bucket with an ash-lined bottom. He placed the rivet into the hole to be riveted, then quickly turned to catch the next rivet.