IMPROVEMENTS IN PRESSES OR APPARATUS TO BE EMPLOYED FOR PRESSING YEAST, AND FOR OTHER SIMILAR PURPOSES
Year: 1864

page_text: COMPLETE SPECIFICATION filed by the said John Beal Jude at the Office
of the Commissioners of Patents, with his Petition and Declaration, on
the 19th March 1864, pursuant to the 9th Section of the Patent Law
Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
BEAL JUDE, of Wateringbury, near Maidstone, Kent, send greeting.
WHEREAS I am in possession of an Invention for "IMPROVEMENTS IN
PRESSES OR APPARATUS TO BE EMPLOYED FOR PRESSING YEAST, AND FOR OTHER
SIMILAR PURPOSES," and have petitioned Her Majesty to grant unto me, my
executors, administrators, and assigns, Her Royal Letters Patent for the
same, and have made solemn declaration that I am the first and true Inventor
thereof.
NOW KNOW YE, that I, the said John Beal Jude, do hereby declare
that the following Complete Specification under my hand and seal fully
describes and ascertains the nature of the said Invention, and in what manner
the same is to be performed, in and by the following statement and accom-
panying Sheet of Drawings :-
I employ a box, chamber, or cylinder, grooved or channeled on the inside
and at the botton, and having at the top a lid, serving as a plunger or piston,
fitted so as to work freely up and down therein. A bag made of canvass or any
other suitable material having a metallic or other mouth-piece attached to and
passing through the plunger, is fitted with a screwed cap or moveable cover
piece; the mouth-piece of the bag is connected with or made to pass through

page_text: a hole in the plunger or piston and is secured thereto by a nut or equivalent.
The yeast or other material to be pressed is filled into the bag within the box
or cylinder through the opening or mouth-piece, which is then closed, the
plunger or piston is pressed on the bag and its contents means of a screwed
bar moving in guides in the framing of the press. One end of the screwed
bar works in a sockett or step on the top side of the plunger or piston, the
other end works through a nut, connected to which is a lever, one end of
which is fulcrumed upon the frame of the press, the other end being free to
move up and down, but is prevented from rising beyond a given distance by
the lever coming in contact with the head or top part of the frame. By
turning the screw in the nut the lever is raised until it comes in contact with
the head or top part of the frame, and thus forms a stop to its further move-
ment; the screwing being continued, the pressure is applied to the plunger or
piston of the box, chamber, or cylinder, when sufficient pressure has been
produced on the plunger or pistón by. turning the screw in the nut so as to
cause the liquid contained in the yeast or other material under treatment to
be forced through the bag into the grooves or channels in the sides and bottom
of the box, chamber, or cylinder (and from which it is conveyed into suitable
receptacles through openings made in the bottom or sides of the box, chamber,
or cylinder); weights are applied to the outer end of the lever, causing it to
gradually descend, carrying with it the nut and screw, by which means the
pressure on the yeast or other material under treatment is maintained until
the fluid is expressed therefrom; as it is well known that pressure alone is not
sufficient when applied for a short time to expel the whole of the liquid
contained in the yeast or other material under. treatment, but that time or a
more or less long continued action is essential. The weights, however, for
convenience, may, for convenience and the saving of time and labour, remain
on the lever or the lever be permanently weighted, and its gradual descent be
availed of in manner just described.
The arrangement of apparatus which I employ in accordance with my
Invention is shewn in the accompanying Sheet of Drawings; in which three
boxes or chambers are shewn combined in the same framing; there may,
however, be only one, or as many boxes or chambers as it may be found most
convenient in practice to employ; and these boxes or chambers, for the
purpose of pressing yeast or pressing fruit and vegetables, may be made of
wood, but they may either be of metal or wood, according to the purpose for
which the apparatus is to be used.
Figure 1 is a side elevation, partly in section, of the apparatus according to
my Invention; Figure 2, a front elevation; and Figure 8 is a horizontal

page_text: section taken through the boxes or chambers constructed for the purpose of
pressing yeast, being made of wood and framed together as shewn. In the
several Figures the same letters of reference denote like or corresponding
parts.
-A is the frame; B, the press boxes or chambers; C, the lid, plunger, or
piston; D, the bag containing the yeast or other matter or material from
which the fluid has to be expressed; E is the mouth-piece fitted to the top of
the bag D, passing through the lid or piston C and washer c, and provided
with a screw cap or cover piece d; F is the step or socket attached to the
lid or piston C; G is the screwed bar; H, H, guide rails; I, the nut between
the forked end j,j, of the lever J. A detached view, Figure 4, is added for
the purpose of showing more clearly this part of my apparatus. In Figure 4,
i, i, are bosses or projections forming trunnions on the nut I, and serve as
bearing surfaces upon which the forked end of the lever J rests when it has
been brought to its position of greatest elevation by being raised by the action
of the screw against the top of the framing of the apparatus. The lever is, in
Figure 1, for want of space, shown broken off, but the outer end thereof being
heavily weighted as soon as the screw pressure is taken off, the lever having
its fulcrum at K. gradually descends, and the forked ends j,j, resting on the
bosses or projections i, i, the pressure due to the descending weighted lever is
transmitted to the screwed rod, which is caused to gradually, descend, and
thereby to continue the pressure upon the contents of the bag D until such time
as the whole of the fluid has been expressed; 1, 1, are the channels formed in
the sides and bottom of each of the chambers. I prefer to form these channels
by "saw cuts
or fine slits instead of semicercular or other shaped grooves;
m, m, are openings through which the expressed fluid is led away to suitable
recepticles. Although in the accompanying Sheet of Drawings I have shewn
the chambers B as of rectangular shape, they may be cylindrical or of any
other convenient, form.
Having now described the nature of my said Invention for " Improvements
in Presses or Apparatus to be employed for Pressing Yeast, and for other
similar Purposes," and in what manner the same is to be put into practice,
I wish it to be understood that I do not claim the use or employment of a
screw or screwed shaft or bar working into a fixed immoveable nut, nor the
use or employment of framed wooden press boxes or chambers having a piston
plate, plunger, or lid moving up and down therein, but what I claim is,-
First, the arrangement of parts and mode of working presses herein
described.
Second, the combination of a screw or screwed shaft or bar with a nut

page_text: connected to or with a lever weighted for the purpose of continuing and com-
pleting the pressure upon the matter or material under treatment, as herein
set forth.
In witness whereof, I, the said John-Beal Jude, have hereunto set
my hand and seal, this Sixteenth day of March, One thousand eight
hundred and sixty-four.
Witness,
WILLIAM SMITH,
19, Salisbury Street,
Strand, London, W.C.
JOHN BEAL JUDE. (L.S.)