contact, and its surplus is tapered, and torn suddenly away.
The whole is reheated, and the pucellas are then pressed upon the ring
of the decanter while rotating upon the inclined plane of the chair.
Pucellas for forming rings differ from the common tools, in having two
dies affixed to the prongs; which dies, being pressed upon the ring while
hot, give the required shape and size. A second and a third ring are then
added, after reheating the decanter, as F, by repeating the
process; and by the punty affixed to the bottom, the brim may be finished,
and the rings well melted in, to insure safe welding and annealing.
The process of moulding common apothecaries'
phials, and the principle on which nearly all perfumery bottles, as
well as common wine-bottles, are made, cannot be more satisfactorily
explained than by the well-informed author of the article upon Flint Glass
in the work entitled "Days at the Factories."* "We first saw,"
says the writer, "some four-sided perfumery bottles made. A man took a
hollow iron tube, about five feet long and half an inch in diameter, and
dipping one end into a pot of melted Glass, collected a small quantity
at the extremity. The Glass appeared like a projecting lump of red-hot
iron, and, from its consistence (between that of treacle and of putty),
was just about to be retained on the tube. He then rolled the Glass on
a flat plate of iron, thereby giving it a cylindrical form, and
* "Days at the Factories."
By George Dodd. C. Knight.