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Using a steam engine to power blast air to blast furnaces made higher furnace temperatures possible, which allowed the use of more lime to tie up sulfur in coal or coke. The steam engine also overcame the shortage of water power for iron works. Iron production surged after the 1750s when steam engines were increasingly employed in iron works. [4]
In the mid-1750s, the steam engine was applied to the water power-constrained iron, copper and lead industries for powering blast bellows. These industries were located near the mines, some of which were using steam engines for mine pumping. Steam engines were too powerful for leather bellows, so cast iron blowing cylinders were developed in 1768.
Textile manufacturing in the modern era is an evolved form of the art and craft industries. Until the 18th and 19th centuries, the textile industry was a household work. It became mechanised in the 18th and 19th centuries, and has continued to develop through science and technology since the twentieth century. [2]
A major change in the iron industries during the Industrial Revolution was the replacement of wood and other bio-fuels with coal; for a given amount of heat, mining coal required much less labour than cutting wood and converting it to charcoal, [57] and coal was much more abundant than wood, supplies of which were becoming scarce before the ...
Darby's iron smelting was but one small part of this generalised revolution and was soon superseded by the great iron-smelting areas. However, the bridge – being the first of its kind fabricated from cast iron, and one of the few which have survived to the present day – remains an important symbol representative of the dawn of the ...
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The industry's contribution in the nation's exports account for 8.5% of the total GDP. Textile exports stood at $4.4 billion in 2017–18. The industry employs a large section of the labour force in the country. Pakistan is the 4th largest producer of cotton with the third largest spinning capacity in Asia.
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