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US Patent: 186,783
Improvement in Safety-Valve Attachments to Utilize the Escape-Steam
Patentee:
Henry G. Ashton (exact or similar names) - Boston, MA

USPTO Classifications:
122/437, 137/540, 251/270, 251/272

Tool Categories:
propulsion and energy : steam apparatus : steam safety valves

Assignees:
None

Manufacturer:
Ashton Valve Co. - Boston, MA

Witnesses:
Charles F. Sleeper
J. E. Maynadier

Patent Dates:
Applied: Nov. 29, 1875
Granted: Jan. 30, 1877

Reissue Information:
Reissued as RE8,211 (May 07, 1878)

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Ashton Valve Co.

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