Cranege brothers
Encyclopedia
Thomas and George Cranege developed the use of the reverberatory furnace
for the production of wrought iron
from cast iron
. Their experimentation using coal
in 1766 at the Coalbrookdale
iron works under the sponsorship of Richard Reynolds was a precursor to the work of Henry Cort
, who further refined their techniques, together with those of Peter Onions, leading to his patent
of 1784.
Reverberatory furnace
A reverberatory furnace is a metallurgical or process furnace that isolates the material being processed from contact with the fuel, but not from contact with combustion gases...
for the production of wrought iron
Wrought iron
thumb|The [[Eiffel tower]] is constructed from [[puddle iron]], a form of wrought ironWrought iron is an iron alloy with a very low carbon...
from cast iron
Cast iron
Cast iron is derived from pig iron, and while it usually refers to gray iron, it also identifies a large group of ferrous alloys which solidify with a eutectic. The color of a fractured surface can be used to identify an alloy. White cast iron is named after its white surface when fractured, due...
. Their experimentation using coal
Coal
Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as anthracite coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure...
in 1766 at the Coalbrookdale
Coalbrookdale
Coalbrookdale is a village in the Ironbridge Gorge in Shropshire, England, containing a settlement of great significance in the history of iron ore smelting. This is where iron ore was first smelted by Abraham Darby using easily mined "coking coal". The coal was drawn from drift mines in the sides...
iron works under the sponsorship of Richard Reynolds was a precursor to the work of Henry Cort
Henry Cort
Henry Cort was an English ironmaster. During the Industrial Revolution in England, Cort began refining iron from pig iron to wrought iron using innovative production systems. In 1783 he patented the puddling process for refining iron ore...
, who further refined their techniques, together with those of Peter Onions, leading to his patent
Patent
A patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....
of 1784.
External links
- Chapter 5 of INDUSTRIAL BIOGRAPHY; Iron Workers and Tool Makers by Samuel SmilesSamuel Smiles-Early life:Born in Haddington, East Lothian, Scotland, the son of Samuel Smiles of Haddington and Janet Wilson of Dalkeith, Smiles was one of eleven surviving children. The family were strict Cameronians, though when Smiles grew up he was not one of them...
, from Project GutenbergProject GutenbergProject Gutenberg is a volunteer effort to digitize and archive cultural works, to "encourage the creation and distribution of eBooks". Founded in 1971 by Michael S. Hart, it is the oldest digital library. Most of the items in its collection are the full texts of public domain books...