Further developments of both engines and implements followed quickly in the wake of his success at Chester. Firstly, a self-moving engine was developed and by the mid-1860s double engine tackle had been introduced with a self-moving engine working along each headland. Sadly, Fowler died in 1864 following a hunting accident, but his brother, Robert, and a competent team of colleagues continued his work. The most notable of these was David Greig, a Scot, who is credited with the development of the balance plough. The idea had been originally patented by the Fisken Brothers, in 1885, but Greig suggested a frame mounted as a “see-saw” carried on a two-wheeled axle, one side carrying the right-hand plough bodies and the other side the left hand, thus enabling the plough to turn all the furrows in the same direction by alternating the bodies. The first plough was built by Ransomes and tested at their works in Ipswich. In 1865 steerage was added to the plough. In 1884 the anti-balance plough was introduced overcoming the tendency of the plough to lift out of the ground in light soil owing to the weight of that half of the plough which was elevated and not at work. Greatly superior steel plough ropes were developed and for a time, Richard Burton’s ingenious clip drum was popular.
By this time the name Fowler was at the forefront wherever steam powered land cultivation was undertaken, especially in the developing countries of Eastern Europe. Other significant engine and tackle, manufacturers were Aveling & Porter of Rochester; J & H McLaren of Leeds; Charles Burrell of Thetford and J & F Howard of Bedford. Their combined output fell far short of that achieved by John Fowler.