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_.
* * * * *
LAURENT & COLLOT'S AUTOMATIC INJECTION PUMP.
As well known, in every well-constructed injection pump, there is a
system of gearing which acts upon the suction valve and stops the
operation of the pump as soon as the requisite pressure is reached;
but the piston, for all that, continues its motion, and, besides the
resistant work of the pump has passed through different degrees of
intensity, seeing that at every moment of its operation the piston
has preserved the same stroke and velocity.
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