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Industrial
Change in Wolverhampton and District
Iron
and Steel Industry
Production
of iron in the area goes back hundreds of years. The earliest manufacturing
process for the making of iron involved the heating of iron
ore until it was soft - the resulting "bloom"
was then worked with hammers at a Bloomsmithy.
The "Bloomery"
process was replaced in the 16th century by a different process
that used a blast
furnace and a forge.
The iron ore was melted by charcoal.
The molten
metal was then tapped
from the furnace onto the floor. Channels in the floor diverted
the molten
iron into small ingots
(which got their name "pig
iron" because the channels were said to look like a
sow suckling her piglets). The pig iron was then drawn out into
bars by hammering on a forge hammer.

Pig
Iron Beds, Bilston Steel Works c.1928 - note the bars of pig iron
in the foreground (L6/BIL/E/6)
In the
early 17th century Dud Dudley, a son of Edward, Lord Dudley claimed
to have produced iron using coal. Dud Dudley had a number of furnaces
in Dudley, Himley and it is believed Ettingshall in Wolverhampton.
Dudley
claimed that he had produced the iron from coal but that the ironmasters
had refused to pay for the pigs as they claimed they made
bad iron. The reason for this could be that the pigs
contained sulphur,
a chemical they could have picked up during the smelting process
from the coal. A small amount of sulphur in the iron would cause
the iron to shear
at redheat
and not be workable in a forge.
The breakthrough
in the production of iron with coal came about in 1709 when Abraham
Darby of Coalbrookdale, Shropshire successfully produced iron with
coke,
a product made from coal.
The first
major producer in the Wolverhampton area was John Wilkinson, known
as the "King of the Iron Trade", who built his first blast
furnace in Bradley.
John
Wilkinson (1728-1808)

John
Wilkinson (Y1/WILK/1)
John's
father, Isaac Wilkinson, had established an iron furnace and forge
in the Lake District with the idea of producing iron with peat
moss. In order to move the peat a canal was dug and a small iron
boat (perhaps the first in the world) was built. However attempts
to use peat failed and Isaac changed back to smelting
iron from charcoal.
Around
1748 John Wilkinson left his father and moved to Bradley to work
in the iron trade. After 10 years, John Wilkinson built the first
blast furnace in Bradley. After some initial failures he was able
to smelt iron using coke.
So successful
was John Wilkinson that in 1772 he bought the manor and estate of
Bradley where he built a large iron house, furnaces and
rolling mills, brick
works, a pottery,
a canal
wharf and a number houses.
By 1777
John Wilkinson was using steam and in 1786 boiler
making was added to the works at Bradley that now covered some 88
acres.
John
Wilkinson was passionate about iron, so much so that he used it
for almost every purpose. He built iron boats, a small iron chapel
at Bradley with a cast
iron pulpit, and it was through his efforts that the first
iron bridge at Coalbrookdale was built. When Jon died he was buried
in an iron coffin!

Bradley
Methodist Church Pulpit (E3/BRA/I/1)
©
Copyright. Wolverhampton City Council, 2002
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