US Patent: 291,126 - Safety-Valve


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US Patent: 291,126

Safety-Valve

Patentee:

Henry G. Ashton (exact or similar names) - Somerville, MA

USPTO Classifications:

137/478

Tool Categories:

propulsion and energy : steam apparatus : steam safety valves

Assignees:

None

Manufacturer:

Ashton Valve Co. - Boston, MA

Witnesses:

William Zittel

John R. Snow

Patent Dates:
Applied:	Sep. 10, 1880
Granted:	Jan. 01, 1884

Patent Pictures:

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"Vintage Machinery" entry for Ashton Valve Co.

Description:

This invention and its companion, 301,079, were granted several foreign patents including Canada CA-11,789 and Great Britain GB-188,003,849. This patent provides an improvement to patent 122,756.