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or less widened, at the pleasure of the operator. The Glass disk,
L, is then released from the neck, by a dextrous tap
with the chest knife, M,* and the Lamp-shade is finished.
If the blow be too sharp, it is apt to chip the brim, and occasionally to
destroy the shade. A wooden peel is used to convey the prefect article
to the lear for annealing.
RINGED DECANTER.
Making a decanter is a simple operation. The
gathering is as usual, at A;
when swung out, the form will be as B; upon being further
expanded, and battledored at the end, it will be thus, C.
The next progressive operation will leave the shape as D.
The ponty iron is placed at and adheres to the bottom, E,
and the mouth is warmed up and shaped. Another workman then gathers
upon a ponty-iron a small piece of Glass, which is dropped on to the part
where the ring is required, F. By rotating the decanter,
the entire circle, or ring, becomes welded by
* The chest knife is a cube of
steel, having four acute angles and a handle, about twelve inches total
length; it is principally used for knocking off, into the chest, the
waste metal that adheres to the blower's iron, hence technically called
chest metal.
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