Complex sentence: He constructed the vehicle by mounting a Maxim machine gun on the front wheels bar of a De Dion-Bouton quadricycle, he also out an iron shield in front of the car for driver's protection.
Split into simpler sentences: He constructed the vehicle by mounting a Maxim machine gun on the front wheels bar of a De Dion-Bouton quadricycle. He also put an iron shield in front of the car for the driver's protection.