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US Patent: 4,202
Mode of connecting steam-cylinders with steam-chests
Patentee:
Frederick Elsworth Sickels - New York, NY

USPTO Classifications:
92/163

Tool Categories:
propulsion and energy : steam engines : steam engine valve gear

Assignees:
None

Manufacturer:
Providence Steam Engine Co. - Providence, RI

Witnesses:
Truman Cook
Charles M. Keller

Patent Dates:
Granted: Sep. 19, 1845

Reissue Information:
Reissued as RE565 (Jun. 01, 1858)

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Providence Steam Engine Co.
Description:
According to the 1889 Providence Directory, this patent was licensed by Thurston, Green & Co., operators of the Providence Steam Engine Co., who used this poppet valve-gear design until 1855. They sued Corliss for infringement of this patent but lost and had to pay $106,000 in legal costs.

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