These gentlemen have likewise so simplified the continuous system of
drawing the wick along as to prevent any loss of cotton. In the next
place, the structure of the moulds, properly so called, is new.
Instead of being cast, as is usually the case, they are rolled and
drawn out, thus giving them smooth surfaces and permitting of their
being soldered, are assembled by means of threaded bronze sockets. The
engravings between Figs. 3 and 4 show these two modes of fixation. At
_a_ may be seen the old method of junction by soldering, and at _b_
the screwing of the moulds into the socket. This machine consists of a
box which is alternately heated and cooled, and which is fixed upon a
frame, A, at the lower part of which are located the wick bobbins, E.
Toward the top of the machine there is a mechanism for actuating the
two pairs of jaws, B, which grasp the candles forced upward by the
play of the pistons, D. This mechanism, which is controlled by a
lever, acts by means of an eccentric.

[Illustration: Figs. 1 and 2. BARLOW'S CANDLE MOULDING MACHINE.]

The pistons, D, are hollow, and are provided above with pieces which
form the small end of the candles. Instead of using tin, as is usually
done, the Messrs. Barlow employ galvanized iron in the construction of
these pistons, and mount them through screw rings--no soldering being
used. For this reason, any workman whatever can quickly replace one of
the tubes. All the pistons are placed upon a horizontal table, which
is made to rise and descend at will, in order to regulate the length
of the candles and remove them from the mould. A winch transmits the
motion which is communicated to it to two pairs of pinions that gear
with racks fixed to the frame to lift the table that supports the
pistons. How these latter are mounted may be seen from an inspection