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US1854750A
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Pressure and temperature valve device for hot water supplies
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US1875929A
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Valve device for connection to alpha hot water supply
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US1875928A
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Electric heat shut-off for water heaters
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US1922625A
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Fusible plug for steam boilers
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US1744977A
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Temperature-controlled relief valve for domestic hot-water tanks
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US1752677A
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Automatic gas shut-off valve
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US1708510A
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Rail anchor
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US1771716A
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Emergency gas-shut-off fire valve
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US1773401A
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Fusible-plug water release
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US1712116A
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Emergency plug shut-off valve
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US1723567A
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Emergency water-operated shut-off valve
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US1784492A
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Lock joint
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US1747589A
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Pilot-controlled valve
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US1628675A
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Automatic shut-off valve
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US1585253A
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Safety valve for water heaters
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US1527522A
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Surface condenser
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US1524482A
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Surface condenser
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US1344417A
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Expansible washer
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US1344416A
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Method of securing bed-plates to sole-plates
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US1288945A
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Batten-cleat.
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