The 1797 Machine That Made Everything
Trade Archive
123,150 views
To cut an accurate screw on a lathe you need a lathe that already contains an accurate screw. The leadscrew drives the carriage, the carriage carries the tool, and every error in the first screw is copied faithfully into every screw made after it. For most of recorded history nobody could break that circle. This is the story of the men who did, and of the century in which precision stopped being a skill held in one man's hands and became a property that could be stored, transmitted and multiplied.
It begins in Paris with Jacques de Vaucanson, whose mechanical duck appeared to eat, digest and defecate onto a silver plate and made him the most celebrated engineer in Europe. The duck was a fraud. His all-metal lathe, built to turn copper calender rolls for the silk mills of Lyon, was not. It survives at the Musée des Arts et Métiers and is routinely called the machine that started the Industrial Revolution. That claim does not hold up, and this video sets out why, including the fact that its owning museum cannot agree with itself on the year it was built.
From there the story moves to John Wilkinson's boring mill at Bersham, which gave James Watt a cylinder true to the thickness of a thin sixpence. Then to Henry Maudslay, born above the Woolwich Arsenal, who worked out how to originate a screw thread with an inclined knife wrapped around a bare rod, how to use a soft crude leadscrew to cut a truer hard one, and how a single accurate leadscrew geared through change wheels could cut any pitch on demand. That is the bootstrap. Each generation of machine tool builds a successor more accurate than itself, because error averages out faster than it accumulates.
The video covers the geometry that makes this possible: Joseph Whitworth's three-plate method for generating a true flat surface where none existed before, his measuring machine that resolved a millionth of an inch at the Great Exhibition of 1851, and the separate achievement of the standardised Whitworth thread. It covers the Portsmouth Block Mills, where forty-five machines of twenty-two types became the first mass production line in the world. And it covers the American System of Manufacturing, from Honoré Blanc's demonstration at Vincennes that Thomas Jefferson witnessed in 1785, through Eli Whitney's staged and now thoroughly debunked exhibition for Congress in 1801, to John Hall at Harpers Ferry, whose sixty-three gauges and water-powered machinery produced one hundred rifles that could be stripped, shuffled and reassembled in front of a government commission in 1826.
It closes on the economics, honestly. The hockey-stick chart of world income per head is a reconstruction with wide error bars, and historians disagree sharply about what caused the take-off. Each competing explanation describes a demand for machinery. None describes a capability. Somebody had to be able to make the thing.
Subscribe to Trade Archive for more on the tools, the trades and the men who built the industrial world.
SOURCES
Allen, Robert C. The British Industrial Revolution in Global Perspective. Cambridge: Cambridge University Press, 2009.
Coad, J. G. The Portsmouth Block Mills: Bentham, Brunel and the Start of the Royal Navy's Industrial Revolution. Swindon: English Heritage, 2005.
Fryer, David M., and John C. Marshall. "The Motives of Jacques de Vaucanson." Technology and Culture 20, no. 2 (April 1979): 257-269.
Habakkuk, H. J. American and British Technology in the Nineteenth Century: The Search for Labour-Saving Inventions. Cambridge: Cambridge University Press, 1962.
Maddison, Angus. Contours of the World Economy 1-2030 AD: Essays in Macro-Economic History. Oxford: Oxford University Press, 2007.
Mokyr, Joel. The Enlightened Economy: An Economic History of Britain 1700-1850. New Haven: Yale University Press, 2009.
Pomeranz, Kenneth. The Great Divergence: China, Europe, and the Making of the Modern World Economy. Princeton: Princeton University Press, 2000.
Roe, Joseph Wickham. English and American Tool Builders. New Haven: Yale University Press, 1916.
Rolt, L. T. C. Tools for the Job: A Short History of Machine Tools. London: B. T. Batsford, 1965.
Rosenberg, Nathan, ed. The American System of Manufactures. Edinburgh: Edinburgh University Press, 1969.
Smith, Merritt Roe. Harpers Ferry Armory and the New Technology: The Challenge of Change. Ithaca: Cornell University Press, 1980.
Temin, Peter. "Labor Scarcity and the Problem of American Industrial Efficiency in the 1850's." Journal of Economic History 26, no. 3 (1966): 277-298.
Whitworth, Joseph. "On Plane Metallic Surfaces." Manchester, 1840.
Woodbury, Robert S. History of the Lathe to 1850. Cleveland: Society for the History of Technology, 1961.
Woodbury, Robert S. "The Legend of Eli Whitney and Interchangeable Parts." Technology and Culture 1, no. 3 (Summer 1960): 235-253.
20 Comments
"We're screwed" originally came from.
Tomas Cromwell 1738
You covered the topics quite well, and the photography is outstanding.
Thank you
The 1797 Machine That Made Everything
Trade Archive
123,150 views
To cut an accurate screw on a lathe you need a lathe that already contains an accurate screw. The leadscrew drives the carriage, the carriage carries the tool, and every error in the first screw is copied faithfully into every screw made after it. For most of recorded history nobody could break that circle. This is the story of the men who did, and of the century in which precision stopped being a skill held in one man's hands and became a property that could be stored, transmitted and multiplied.
It begins in Paris with Jacques de Vaucanson, whose mechanical duck appeared to eat, digest and defecate onto a silver plate and made him the most celebrated engineer in Europe. The duck was a fraud. His all-metal lathe, built to turn copper calender rolls for the silk mills of Lyon, was not. It survives at the Musée des Arts et Métiers and is routinely called the machine that started the Industrial Revolution. That claim does not hold up, and this video sets out why, including the fact that its owning museum cannot agree with itself on the year it was built.
From there the story moves to John Wilkinson's boring mill at Bersham, which gave James Watt a cylinder true to the thickness of a thin sixpence. Then to Henry Maudslay, born above the Woolwich Arsenal, who worked out how to originate a screw thread with an inclined knife wrapped around a bare rod, how to use a soft crude leadscrew to cut a truer hard one, and how a single accurate leadscrew geared through change wheels could cut any pitch on demand. That is the bootstrap. Each generation of machine tool builds a successor more accurate than itself, because error averages out faster than it accumulates.
The video covers the geometry that makes this possible: Joseph Whitworth's three-plate method for generating a true flat surface where none existed before, his measuring machine that resolved a millionth of an inch at the Great Exhibition of 1851, and the separate achievement of the standardised Whitworth thread. It covers the Portsmouth Block Mills, where forty-five machines of twenty-two types became the first mass production line in the world. And it covers the American System of Manufacturing, from Honoré Blanc's demonstration at Vincennes that Thomas Jefferson witnessed in 1785, through Eli Whitney's staged and now thoroughly debunked exhibition for Congress in 1801, to John Hall at Harpers Ferry, whose sixty-three gauges and water-powered machinery produced one hundred rifles that could be stripped, shuffled and reassembled in front of a government commission in 1826.
It closes on the economics, honestly. The hockey-stick chart of world income per head is a reconstruction with wide error bars, and historians disagree sharply about what caused the take-off. Each competing explanation describes a demand for machinery. None describes a capability. Somebody had to be able to make the thing.
Subscribe to Trade Archive for more on the tools, the trades and the men who built the industrial world.
SOURCES
Allen, Robert C. The British Industrial Revolution in Global Perspective. Cambridge: Cambridge University Press, 2009.
Coad, J. G. The Portsmouth Block Mills: Bentham, Brunel and the Start of the Royal Navy's Industrial Revolution. Swindon: English Heritage, 2005.
Fryer, David M., and John C. Marshall. "The Motives of Jacques de Vaucanson." Technology and Culture 20, no. 2 (April 1979): 257-269.
Habakkuk, H. J. American and British Technology in the Nineteenth Century: The Search for Labour-Saving Inventions. Cambridge: Cambridge University Press, 1962.
Maddison, Angus. Contours of the World Economy 1-2030 AD: Essays in Macro-Economic History. Oxford: Oxford University Press, 2007.
Mokyr, Joel. The Enlightened Economy: An Economic History of Britain 1700-1850. New Haven: Yale University Press, 2009.
Pomeranz, Kenneth. The Great Divergence: China, Europe, and the Making of the Modern World Economy. Princeton: Princeton University Press, 2000.
Roe, Joseph Wickham. English and American Tool Builders. New Haven: Yale University Press, 1916.
Rolt, L. T. C. Tools for the Job: A Short History of Machine Tools. London: B. T. Batsford, 1965.
Rosenberg, Nathan, ed. The American System of Manufactures. Edinburgh: Edinburgh University Press, 1969.
Smith, Merritt Roe. Harpers Ferry Armory and the New Technology: The Challenge of Change. Ithaca: Cornell University Press, 1980.
Temin, Peter. "Labor Scarcity and the Problem of American Industrial Efficiency in the 1850's." Journal of Economic History 26, no. 3 (1966): 277-298.
Whitworth, Joseph. "On Plane Metallic Surfaces." Manchester, 1840.
Woodbury, Robert S. History of the Lathe to 1850. Cleveland: Society for the History of Technology, 1961.
Woodbury, Robert S. "The Legend of Eli Whitney and Interchangeable Parts." Technology and Culture 1, no. 3 (Summer 1960): 235-253.