GB Patent: GB-180,502,878
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| Improvements on the steam engine
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Patentee:
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| William Deverell (exact or similar names) - Blackwall, county Middlesex, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Aug. 02, 1805 |
Espacenet patent
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Joel Havens
Patent Specification and drawing
Grace's Guide page on William Deverell
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Description: |
| This patent describes a compound engine with two cylinders, one small and one large. The steam passes from the small cylinder to the large one, of about twenty times the capacity of the first. The pistons works alternately in the cylinders. The inventors prefers to use boiler pressure of 54 psi; the steam entering the second cylinder is at 18 psi and will increase to 20 psi at peak. Deverell also describes a preferred boiler construction, which has an iron plate at the base rather than the usual brickwork. |
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