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US Patent: 439,349
Slide-valve for steam-engines
Patentee:
Noble T. Greene - Providence, RI

USPTO Classifications:
251/282, 251/319

Tool Categories:
propulsion and energy : steam engines : steam engine valves

Assignees:
None

Manufacturer:
Providence Steam Engine Co. - Providence, RI

Witnesses:
W. H. Thurston
S. J. Murphy

Patent Dates:
Applied: Jul. 28, 1888
Granted: Oct. 28, 1890

Patent Pictures:
USPTO pdf tiff
Google Patents
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"Vintage Machinery" entry for Providence Steam Engine Co.

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