...only about 8 inches. The lead to be introduced into the pan is first fused in a large iron pot fixed in brick-work at the side of the furnace, and subsequently ladled into it through an iron gutter adapted for that purpose. The length of time necessary for the purification...

...about 8 inches. The lead to be introduced into the pan is either first fused in a large iron pot fixed in brick-work at the side of the furnace, and subsequently ladled into the furnace through an iron gutter adapted for the purpose, or the pigs of lead are thrown into the...

...iron plug kept in its place by a weighted lever. The charge, which is about 1 1 tons, is first fused in an iron pot set in brickwork at the side of the furnace, and is subsequently laded into tho pan through a sheet-iron gutter prepared for the purpose. When the metal...

...cast-iron pan, which forms the lead bath. It is about 2 inches in thickness, 10 feet long, 5 feet 6 inches wide, and 10 inches in depth. All the angles...built of brick usually set in a wrought-iron pan. They are supported on rails and held up by buckstays. The bottom of the furnace is built of a layer of brasque,...

...height of the furnace above the pan at the bridge end is 16 inches, and at the other end 8 inches. first melted in an iron pot, set in brickwork, at...built of brick usually set in a wrought-iron pan. They are supported on rails and held up by buckstays. The bottom of the furnace is built of a layer of brasque,...