US Patent: 20,768 - Valve-gearing for steam-engines


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US Patent: 20,768

Valve-gearing for steam-engines

Patentee:

John F. Allen (exact or similar names) - New York, NY

USPTO Classifications:

251/251

Tool Categories:

propulsion and energy : steam engines : steam engine valve gear

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

William Tusch

W. Hauff

Patent Dates:
Granted:	Jun. 29, 1858

Patent Pictures:

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Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Porter-Allen Engine Co.

Description:

The inventor would become partner in the important innovator in high-speed steam engines, the Porter-Allen Engine Co. This patent precedes that venture.