Complex sentence: Trying to come up with a better way to generate alternating current Tesla developed a steam powered reciprocating electricity generator which he patented in 1893 and introduced at the Chicago World's Columbian Exposition that year.
Split into simpler sentences: Trying to come up with a better way to generate alternating current, Tesla developed a steam powered reciprocating electricity generator. He patented it in 1893 and introduced it at the Chicago World's Columbian Exposition that year.