Water in the mine
Deep mining in the 1600s and early 1700s ran into a constant problem: water seeped in faster than it could be hauled out. Horses turned winding gear to lift buckets, and water wheels sometimes drove chain pumps, but neither worked well at depth or in dry seasons. Coal and metal mines in Britain, from Cornwall to the north-east, needed a stronger and more continuous source of power. Steam provided it.
Early steam pumps are usually associated with Thomas Savery and Thomas Newcomen, and later James Watt and Cornish engineers. What matters here is what their engines did in practice and how they changed the places where they were installed.
Why coal mines led the way
The first Newcomen-type engines burned a lot of fuel for the work they did. That was acceptable at a colliery, where small coal of poor market value was available for almost nothing at the pithead, but expensive at a mine where fuel had to be hauled in. This is one reason steam spread so quickly in coal districts and more slowly elsewhere. In Cornwall, where coal had to be shipped from Wales, the high price of fuel pushed mine owners to demand more efficient engines, and that helped drive improvements by Watt and later Cornish engineers.
As pumping engines improved, mines could be dug deeper and reach seams that were previously flooded. More coal meant cheaper fuel, and cheaper fuel meant more people could afford to use steam. The cycle fed itself.
Mills and ironworks
Once Watt and his partner Matthew Boulton produced engines with rotating motion in the 1780s, factories could use steam directly. Early adopters included cotton mills, flour mills, breweries and ironworks. In an ironworks, engines drove blowing cylinders for the furnace and powered hammers and rolling equipment. Ironmakers had long been tied to rivers for water power and to forests for charcoal. The shift to coke fuel and steam power broke both ties, and iron production grew rapidly in coalfield regions such as South Wales, the Black Country and the north-east.
Steam also helped iron industries make better machines, including better engines. Boring accurate cylinders required strong, precise machine tools, and ironmasters like John Wilkinson contributed techniques to that work. In this sense the engine and the metalworking trade developed together.
Industrial towns
Engines needed fuel, water and workers, and the places where those came together grew quickly. Mining villages expanded into towns, and mill towns such as those around Manchester drew in people from the countryside and from Ireland. Housing was often built fast and cheaply, close to the works, and many early industrial towns lacked drains, clean water and open space. Smoke from boiler chimneys darkened skies; historians often describe industrial cities of the 1800s as having poor air quality and high death rates, especially among children, although records from the period are patchy.
Engines were also a source of danger. Boiler explosions killed and injured workers in factories and on steamships. Mining had its own hazards: roof falls, flooding and gas explosions. Steam made many of these mines deeper and larger, and in that respect it raised risks as well as output.
Workers and wages
Work in steam-powered industries was usually harder to escape than farm work. In mills, hours were set by the engine, and a late arrival could mean fines. In mines, children and women worked underground in some districts until laws restricted this. In Britain, the Mines and Collieries Act of 1842 banned women and young boys from underground work, following a government report that shocked the public. Factory acts limited hours for children and teenagers in textile mills in stages from 1833 onward.
For some workers the new industries meant steady wages and a chance to learn skills such as engine fitting, boilermaking or pattern making. Engine builders and millwrights were in demand. For others, especially those displaced from hand trades, the change meant hardship. It is difficult to summarize the experience of millions of people in a sentence, and historians continue to debate how quickly living standards improved.
What this shows
The pattern in mines, mills and ironworks was similar. A new power source first solved a bottleneck, such as water in a pit. Once it did, other trades borrowed it, and new bottlenecks appeared, such as moving coal to the mills, which led to canals and then railways. Steam was not the only cause of industrial growth, but it was a central link in a chain of improvements that fed one another.