Complex sentence: Claeys was founded in 1906 by Leon Claeys, a Belgian mechanic, and started to build threshing machines, and in 1909 built his factory in Zedelgem, Belgium, where one of New Holland plant is still producing combines today.
Split into simpler sentences: Claeys was founded in 1906 by Leon Claeys, a Belgian mechanic. This firm started to build threshing machines, and in 1909 built a factory in Zedelgem, Belgium, where one of New Holland's plants is still producing combines today.