Complex sentence: Wreckers were required by the Federal court to carry equipment that might be needed to save cargo and ships, including heavy anchors for kedging (hauling) ships off reefs, heavy hawsers and chain, fenders and blocks and tackle.
Split into simpler sentences: Wreckers were required by the Federal law to carry equipment that might be needed to save cargo and ships. Such equipment included heavy anchors for kedging (hauling) ships off reefs, heavy hawsers and chain, fenders and blocks and tackle.