(under subclass 379) Devices comprising receptacles, either open at the top or closed, but having openings for the passage of water therethrough, for receiving the sediment precipitated from the water. The pan may have a conduit leading to the mud drum.
SEE OR SEARCH THIS CLASS, SUBCLASS:
386, for pans with blow-off conduits leading from the pan to the outside of the boiler.
430, for boilers provided with an internal conduit for delivering feed water to the mud drum.
