 Ransomes built an early portable in 1841 and exhibited it at the Royal Agricultural Society show that year.The next year Ransomes converted the steam engine to self driving, thus making the first traction engine
Several Tuxford engines were displayed at the Royal Agricultural Society's Show at Bristol in 1842, and other manufacturers soon joined in, using the basic design of the Tuxford engine as a pattern for the majority of portable engines produced thereafter.Early manufacturers in the UK included