Page 197 - My FlipBook
P. 197
;
PORCELAIN INLAYS i8i
convenient furnace for fusing the Jenkins body
there is some risk of over-fusing in it when the
main current is on full strength, as the heat con-
sequently runs up too rapidly. It is necessary,
under this condition, to watch the work as " a cat
watches a mouse," and take the tray out of the
furnace immediately the body is sufficiently fused.
Fig. 11. Fig. 12.
The heat can be regulated somewhat by gradually
drawing the tray towards the open door of the
furnace, but all difficulty is overcome by using the
small Heat Regulator (Fig, 12) that is now supplied.
In many cases, after the furnace has been well
heated up, and the current is strong, the whole of
the fusing can be done with the indicator pointed
to one from full; but if the heat is not great enough
for this, the inlay may be nearly fused at full, and
PORCELAIN INLAYS i8i
convenient furnace for fusing the Jenkins body
there is some risk of over-fusing in it when the
main current is on full strength, as the heat con-
sequently runs up too rapidly. It is necessary,
under this condition, to watch the work as " a cat
watches a mouse," and take the tray out of the
furnace immediately the body is sufficiently fused.
Fig. 11. Fig. 12.
The heat can be regulated somewhat by gradually
drawing the tray towards the open door of the
furnace, but all difficulty is overcome by using the
small Heat Regulator (Fig, 12) that is now supplied.
In many cases, after the furnace has been well
heated up, and the current is strong, the whole of
the fusing can be done with the indicator pointed
to one from full; but if the heat is not great enough
for this, the inlay may be nearly fused at full, and
