Year: 1886

page_text: Date of Application, 28th Apr., 1886.
Complete Left, 28th Jan., 1887
Complete Accepted, 1st Mar., 1887.
ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in apparatus for the extraction of various
kinds of vegetable juice and consists essentially of a novel and particular construction
of the receiver into which the material is to be placed before it comes under pressure.
The apparatus consists essentially in a hollow cylinder the sides of which are formed
of rings in parts placed one above the other and joined by bolts and also fixed by bolts
to a bed plate. The latter bolts also serve as pivots or hinges to the opening or
closing parts of the rings, and the first mentioned bolts serve also to regulate the space
between the rings for the escape of the extracted liquid. The cylinder or receiver
may be opened or closed at will by the movable parts of the rings, and when closed
these movable parts are secured to the bed plate by a bolt having at the top a small
crank, which bolt is passed through the interlacing ends of the movable parts of the
rings. This arrangement, which necessitates the entire removal of the bolt when the
receiver is to be opened may be substituted by a bolt pivotted to the bed plate, and
provided at its upper end with a screw thread and a nut with a crank handle. This
bar or bolt fits into a series of notches at the end of the movable parts of the rings.
The rings which may be constructed of wrought or cast iron are composed of two
parts each, which overlap each other, to allow the extracted liquid to pass and rivetted
together or leather washers may be placed between the rings.
The dimension holding capacity and height depends upon the nature, the quantity
and the resistance of the material to be pressed.

page_text: The operation of the apparatus is the following. After the received is closed, a
layer of the material to be pressed is placed. at. the bottom and covered with a thin
metal disc, on to this is placed another layer of material and another disc and so on
until the receiver is filled; on the top is placed a strong metal plate which is pressed.
down by hand, steam, hydraulic or other convenient power. After all the liquid is
extracted the binding bolt is withdrawn and the receiver opened to empty it of the
residue which will be found in round cakes between the metal discs.
As all substances lose much of their volume under such pressure and offer but very
little resistance during the first third of the operation, a supplementary ring of the
third of the height of the receiver may be placed on the top of the latter, which enables
the operator to press one third more material. This ring consists of two parts joined
with pins and is preferably constructed of sheet iron. When the pressure has lowered
the material sufficiently the pins are withdrawn and the supplementary ring removed
when the pressure may be continued without it.

page_text: I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
M.I.M.E. 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 relates to improvements in apparatus for the extraction of various
kinds of vegetable juice and consists essentially of a novel and particular construction
of the receiver into which the material is to be placed before it comes under pressure.
In the accompanying drawings:-
Fig. 1 represents a front view of the apparatus when closed.
Fig. 2 a plan of figure 1.
Fig. 3 a front view of the apparatus when opened.
Fig. 4 a plan of figure 3.
Fig. 5 a complete ring.
Fig. 6a section of figure 5.
Fig. 7 shows the joining of the parts forming the ring without rivets.
Fig. 8 a similar joining but with rivets.
Fig. 9 represents an elevation and plan of a supplementary ring to increase the
height of the reservoir if necessary.
Figs. 10 and 11 are the pivot bolts for the parts of the rings.
Fig. 12 is the bolt for the closing of the rings.
Fig. 13 is a front and side elevation of a modification of figure 12.
The apparatus consists essentially in a hollow cylinder the sides of which are formed
of rings in parts placed one above the other and joined by bolts (fig. 10) and also fixed
by bolis (fig. 11) to a bed plate A. The latter bolts also serve as pivots or hinges to the
opening or closing parts VVI of the rings, and the first mentioned bolts serve also
to regulate the space between the rings for the escape of the extracted liquid. The
cylinder or receiver may be opened or closed at will by the movable parts V VI of
the rings, and when closed these movable parts are secured to the bed plate A by a
bolt (figure 12) having at the top a small crank which bolt is passed through the
interlacing ends of the movable parts of the rings. This arrangement, which
necessitates the entire removal of the bolt when the receiver is to be opened may he
substituted by a rod or bar B (fig. 13) pivoted to the bed plate A, and provided at its
upper end with a screw thread and a nut with a crank handle D. This bar or rod B
fits into a series of notches at the end of the inovable parts of the rings.
The rings which may be constructed of wrought or cast iron are composed of two
parts each which overlap each other to allow the extracted liquid to pass and are

page_text: rivetted together, or leather washers may be placed between the rings. The dimension,
holding capacity and height depends upon the nature, the quantity and the resistance
of the material to be pressed.
The operation of the apparatus is the following. After the receiver is closed a layer
of the material to be pressed is placed at the bottom and covered with a thin metal
disc onto this is placed another layer of material and another disc and so on until the
receiver is filled on the top is placed a strong metal plate which is pressed down by
hand, steam, hydraulic or other convenient power.. After all the liquid is extracteil
the binding bolt or rod is withdrawn and the receiver opened to empty it of the
residue which will be found in round cakes between the metal discs.
As all substances lose much of their volume under such pressure and offer but very
little resistance during the first third of the operation a supplementary ring S (fig. 1
and 9) of the third of the height of the receiver may be placed on the top of the latter
which enables the operator to press one third more material. This ring consists of
two parts joined with pins and is preferably constructed of sheet iron." When the
pressure has lowered the material sufficiently the pins are withdrawn and the
supplementary ring S removed when the pressure may be continued without it.
It is understood that the form dimensions or material may be altered without
deviating from the principle of the invention.
Having now particularly described and ascertained the nature of the said invention
as communicated to me by my foreign correspondent, and in what manner the same
is to be performed, I declare that what I claim is :-
1. An apparatus for use in the extraction of oils or other vegetable juices composed
of a series of superposed flat metal rings each of which is formed in two or more
segments jointed together by holts passing through the entire series and secured to a
bed plate by other bolts substantially as specified.
2. In apparatus for use in the extraction of oils or other vegetable juices and as a
means of providing for the extraction of the compressed matter joining together the
adjacent ends of two series of segments by a readily removable bolt having a crank or
lever arm at its upper end substantially as specified and shown in figure 12 of the
accompanying drawings.
3. In apparatus for use in the extraction of oils or other vegetable juices joining
together the adjacent ends of the movable segments V VI by means of a rod such as, B
pivotted to the bed plate and entering notches formed in the ends of the segments and
secured by a screwed crank such as D substantially as specified.
4. The combination with apparatus such as herein described of a supplementary
cylinder such as S. constructed preferably in two or more parts substantially, as
specified.