Complex sentence: In 1883 he bought a cotton mill in Bubikon (6,000 spindles, 80 workers) where he also added a weaving factory.He expanded to Winterthur and St. Gallen, leaving a considerable fortune.
Split into simpler sentences: In 1883 he bought a cotton mill in Bubikon (6,000 spindles, 80 workers) where he also added a weaving factory. Heusser expanded to Winterthur and St. Gallen, leaving a considerable fortune.