Improvements relating to Presses suitable for the Treatment of Oilcake and other Materials.
Year: 1897

page_text: Date of Application, 20th Jan., 1897-Accepted, 27th Mar., 1897
Improvements relating to Presses suitable for the Treatment of
Oilcake and other Materials.
We, JULIUS THOMAS and LOUIS PHILIPP THOMAS, Manufacturers, of
Neuss-on-the-Rhine, in the German Empire, do hereby declare the nature of
this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
This invention has for its object, to increase the efficiency or capacity of work
of vertical oil presses, but is applicable also to presses for other materials.
In the accompanying drawings Fig. 1 is an elevation of a press embodying my
invention, while Figs. 2 and 3 represent the same at different stages of operation.
The plates p, p, p², are suspended as in other presses of this system, and the
number of the said plates is increased to such an extent that, in the position of rest
represented by Fig. 1, several plates rest on the platform K of the ordinary piston
or ram. The majority of the oil-cakes supported by the plates, that is to say,
those which are situated above the plate p', are subjected to preliminary pressure
by means of an auxiliary press which may be of any suitable design. The
preliminary compression has for its object to afford space for additional cakes.
In the example shown by the drawing the auxiliary press is mounted on the
crosshead c of the main press and operated by water pressure. The ram r of the
auxiliary press is attached to a crosshead t connected with the press plate pl by
vertical suspension rods s. In the position of rest represented by Fig. 1, the plate pl
is suspended freely, so that it can be loaded, while the plates situated below p¹ rest
on the platform K of the main piston.
After the plates p situated above the plate p', as well as the latter, have been
charged with oil cakes, the auxiliary press is set in motion by means of a lever b,
and the oil cakes are thereby compressed. The auxiliary piston r now occupies its
highest position, and the plates p, p, p², have been lifted, as shown by Fig. 2.
Consequently, the plates p² have become free and may be charged with oil cakes,
after which the main press is set in motion, and the plates thereby lifted into the
position represented by Fig. 3.
The cakes which have been thus compressed are allowed to remain under
pressure for some time, as usual.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:
1. The method of increasing the efficiency of vertical oil presses having a
series of suspended press plates, which consists in increasing the number of press
plates, so that some of them are supported by the press piston, and providing an
auxiliary press adapted to subject the material placed on the upper plates to a
preliminary pressure, before the main press is set in action, and thereby to afford
room for charging the lower plates, substantially as described.
2. A vertical press for oilcakes and other materials, comprising in its con-
struction an ordinary hydraulic press with suspension plates, the number of which,
however, is so large that in a position of rest several plates rest on the press
piston, and an auxiliary press mounted on the main press, said auxiliary press
D

page_text: being adapted to lift the suspended upper plates and compress the material
placed thereon until the plates previously supported by the main piston have
become free and are capable of receiving a charge, substantially as described.
Dated this 19th day of January 1897.
FAIRFAX & WETTER,
Agents for the Applicants.