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US Patent: 21,399
Steam-Engine Valve-Gear
Cut-Off for Steam-Engines
Patentee:
Jacob Widmer - New Haven, CT

USPTO Classifications:
109/31, 74/568R

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

Assignees:
Jacob Widmer - New Haven, CT
Howard Gilbert - New Haven, CT

Manufacturer:
Not known to have been produced

Witnesses:
Howard Gilbert
R. Fitzgerald

Patent Dates:
Granted: Aug. 31, 1858

Patent Pictures:
USPTO pdf tiff
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