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GB Patent: GB-180,102,531
Air pumps and other steam engine parts
Matthew Murray - Leeds, county York, England

USPTO Classifications:

Tool Categories:
propulsion and energy : steam engines


Fenton, Murray & Wood - Leeds, county York, England


Patent Dates:
Granted: Aug. 11, 1801

Patent Pictures:
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Grace's Guide page on Matthew Murray
Wikipedia biography of Matthew Murray
This patent comprised six improvements. "First, for a method of constructing the air-pump; secondly, for a method of packing stuffing-boxes... The third and fourth methods relate to the construction and motion of the valves. The fifth was a method of connecting the piston-rod to the parallel motion; and the last, for the construction of fireplaces, by which the smoke arising from the fire was to be consumed." Rival engine maker Boulton & Watt challenged the patent and showed the existence of prior art for one of the claims. Under the patent laws then in place, the entire patent was then set aside.

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