GB Patent: GB-187,802,049
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Improvements in Apparatus to be Used on Connection with Locomotive and Other Boilers for Relieving the Same from Pressure Heating, the Feed Water Regulating the Discharge of the Waste Steam, and for Other Like Purposes
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Patentees:
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Henry G. Ashton (exact or similar names) - Boston, Middlesex County, MA |
William Robert Lake (exact or similar names) - London, England |
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Patent Dates:
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Granted: |
May 22, 1878 |
Espacenet patent
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Joel Havens "Vintage Machinery" entry for Ashton Valve Co.
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