Complex sentence: The light dragoons wore short blue braided jackets and the leather "Tarleton" helmet which had a woollen comb, and carried the Pattern 1796 light cavalry sabre, which was very sharply curved and generally used for cutting only.
Split into simpler sentences: The light dragoons wore short blue braided jackets and the leather "Tarleton" helmet which had a woollen comb. They were armed with the Pattern 1796 light cavalry sabre, which was very sharply curved and generally used for cutting only.