lever, M, with his right hand, and turns it so as to close the filter,
having care at the same time to support the extremity, r, of the bottom
with his left hand so that the catch, r', may pass under it when the
lever is manipulated. The bottom haircloth is then put in place, the
charge is thrown in, and its surface leveled, and the hair-cloth cushion
is laid on top. The filter is then revolved around the column so as to
bring it into the position shown in Fig. 1. The cock of the distributer
that admits water under pressure being turned on, the ram, D, rises,
carries with it the filter, and compresses the material against the
presser, G. At the end of from six to ten minutes the pressure-valve is
closed and the discharge-valve opened. The filter then slides down with
its socket along the column, C', till it reaches the shoulder, e, where
it rests. It is next swung around to the position shown in Fig. 3, and
emptied of its contents by a manipulation, the reverse of that described
for charging it. All these manipulations of charging and emptying
require no more than half a minute on the part of an experienced
workman.

The press under consideration is well adapted to the treatment of heated
seed paste, and has been very successfully employed for that purpose
in France, Belgium, and Holland. It succeeds equally well for the
extraction of oil from nuts. Referring to the drawings, the scales are
for Figures 1, 2, 3, 4, 14, 15, one fifteenth actual size; Figures 5, 6,
7, 8, 9, one-tenth; Figures 10, 11, 12, and 13, one-fifth.--_Machines,
Outils et Appareils_.

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