Complex sentence: Sally Windmüller founded the company in 1899 under the name Westfälische Metall-Industrie Aktien-Gesellschaft (WMI) to produce ball horns and candles and kerosene lamps for carriages.
Split into simpler sentences: Sally Windmüller founded the company in 1899 under the name Westfälische Metall-Industrie Aktien-Gesellschaft (WMI). At this time there is a product of ball horns and candles and kerosene lamps for carriages.