Finally, fluid steel can be run or poured off, since it is perfectly fluid, while glass cannot be thus treated, but is withdrawn from the furnace by means of either a ladle or a gatherer's pipe, and the temperature required for this purpose is much lower than.
Adds enough carbon to give it the content desired, and then immediately pours the steel into a great claylined casting ladle by turning the converter over, and through a nozzle in the bottom of this ladle pours the steel into its ingot moulds.
It consists essentially of a series of thin-walled moulds, BB, carried by endless chains past the lip of a great ladle A.
The difficulty in the way of this system was that, in pouring the steel from ladle to mould, more or less of it:occasionally spatters, and these spatterings, if they strike the rails or the running gear of the cars, obstruct and foul them, preventing the movement of the train, because the solidified steel is extremely tenacious.
While the two crews were yet circling in the waters, reaching out after the revolving line-tubs, oars, and other floating furniture, while aslope little Flask bobbed up and down like an empty vial, twitching his legs upwards to escape the dreaded jaws of sharks; and Stubb was lustily singing out for some one to ladle him up; and while the old man's line--now parting--admitted of his pulling into the creamy pool to rescue whom he could;--in that wild simultaneousness of a thousand concreted perils,--Ahab's yet unstricken boat seemed drawn up towards Heaven by invisible wires,--as, arrow-like, shooting perpendicularly from the sea, the White Whale dashed his broad forehead against its bottom, and sent it, turning over and over, into the air; till it fell again--gunwale downwards--and Ahab and his men struggled out from under it, like seals from a sea-side cave.
Another way of introducing the carbon is Darby's process of throwing large paper bags filled with anthracite, coke or gas-carbon into the casting ladle as the molten steel is pouring into it.
A, Ladle bringing the cast iron from the blast-furnace.
At length when the furnace was tapped a white slag was drawn off from the top, and the liquid metal beneath was received into a ladle and poured into cast-iron moulds.
The zinc vapour produced descends through the pipe and condenses into liquid zinc, which is collected in a ladle held under the outlet end of the pipe.
The glass is taken from the furnace in large iron ladles, which are carried upon slings running on overhead rails; from the ladle the glass is thrown upon the cast-iron bed of a rolling-table, and is rolled into sheet by an iron roller, the process being similar to that employed in making plate-glass, but on a smaller scale.