US Patent: 16,781 - Improvement in cut-offs for steam-engines


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US Patent: 16,781

Improvement in cut-offs for steam-engines

Patentee:

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

USPTO Classifications:

91/254, 91/259

Tool Categories:

propulsion and energy : steam engines : steam engine valve gear

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

William Tusch

Henry T. Brown

Patent Dates:
Granted:	Mar. 10, 1857

Patent Pictures:

USPTO (New site tip)
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.