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US Patent: RE8,216
Improvement in Feed-Water Heaters
Patentee: Peter C. Wortman (exact or similar names) - Greenville, Montcalm County, MI USPTO Classifications: 122/434 Tool Categories: propulsion and energy : steam apparatus : stationary boilers : feedwater apparatus Assignees: Ashton Valve Co. - Hartford, Hartford County, CT Manufacturer: Ashton Valve Co. - Boston, Middlesex County, MA Witnesses: William E. Hoyt H. G. Ashton	Patent Dates: Applied: Apr. 13, 1878 Granted: May 07, 1878 Reissue Information: Reissue of 93,790 (Aug. 17, 1869) 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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