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US Patent: 7,755
Valve for governors
Patentees:
Alfred Judson - Rochester, NY
Junius Judson - Rochester, NY

USPTO Classifications:
137/625.3

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

Assignees:
Junius Judson - Rochester, NY

Manufacturer:
Spalding's Machine Shop - Lockport, NY

Witnesses:
Walter R. Johnson, Jr.
Walter R. Johnson
Charles Gilbert
Charles R. Babbitt

Patent Dates:
Granted: Nov. 05, 1850

Reissue Information:
Reissued as RE255 (Jan. 10, 1854)

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Spalding's Machine Shop

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