There are several modifications of the reverberatory furnace in use, designed mechanically to effect the rabbling.
At the present time the process is commonly conducted in a reverberatory furnace, similar to that figured in the engraving.
The eye is the essential agent, the hand is only the reverberatory agent; hence it must show less energy than the eye.
On the small scale this alloy is prepared in crucibles; but for statues and larger works on reverberatory hearths.
The operation is carried on in a reverberatory furnace or in a kettle.
It has been attempted in New-Jersey to lessen the expense attending these heats, by performing them in reverberatory furnaces.
The calcination is effected in reverberatory furnaces, or in muffle furnaces, if the sulphur is to be recovered.
The process is effected either in heaps, stalls, shaft furnaces, reverberatory furnaces or muffle furnaces.
During the first stage of the process this iron is melted down to a fluid bath in the bottom of a reverberatory furnace.
The refining of this black copper is performed in a kind of reverberatory furnace.