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GB Patent: GB-179,301,943
Steam engine
Patentee:
Matthew Pitts - Abinger, county Surrey, England

USPTO Classifications:

Tool Categories:
propulsion and energy : steam engines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Mar. 25, 1793

Patent Pictures:
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Description:
According to the article on boilers in the 1921 edition of Winston's Cumulative Loose-leaf Encyclopedia, "One idea which hindered advancement in boiler design for many years was that in order to generate a large quantity of steam the boiler should contain a large and compact volume of boiling water. Matthew Pitts (1793) seems to have been the first to definitely recognize the error of this belief. He found that the quantity of steam was proportional to the surface exposed to the heat. This truth indicates that as a steam generator the spherical form is the poorest, as it has the least exposed surface for a given volume. The plain cylindrical or tank boiler is the best of the early forms."

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