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Watt patents the separate condenser

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James Watt patented a method of condensing steam in a vessel separate from the working cylinder, so that the cylinder need never be cooled. It cut the coal consumed per unit of work by roughly two-thirds to three-quarters, and it took six further years and John Wilkinson's cylinder-boring machine before the design could be built accurately enough to sell. Parliament extended the patent to 1800.

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Assembled narrative · 1

Assembled from 22 blocks · 1 evidence · 17 related

  1. Story
  2. James Watt patented a method of condensing steam in a vessel separate from the working cylinder, so that the cylinder need never be cooled. It cut the coal consumed per unit of work by roughly two-thirds to three-quarters, and it took six further years and John Wilkinson's cylinder-boring machine before the design could be built accurately enough to sell. Parliament extended the patent to 1800.
  3. Knowledge
  4. The steam engine
  5. James Watt
  6. Watt patents the separate condenser
  7. Connections
  8. The steam engine
  9. James Watt
  10. The Newcomen atmospheric engine
  11. Cromford Mill
  12. James Watt
  13. Boulton and Watt
  14. Manchester
  15. Watt patents the separate condenser
  16. The rotative engine turns a shaft
  17. The steam engine
  18. Boulton and Watt
  19. Watt patents the separate condenser
  20. Boulton and Watt form their partnership
  21. Evidence
  22. Supports the separate-condenser priority date, the extension of the monopoly to 1800, and the Boulton and Watt licensing model. V55 verification basis: NOT consulted — legislation.gov.uk is blocked from this session. The patent number and the regnal citation of the extending Act are deliberately omitted rather than reconstructed from memory.
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/atlas?object=EVT_WATT_CONDENSER_PATENT_1769&experience=EVT_WATT_CONDENSER_PATENT_1769