IMPROVEMENTS IN MEANS AND APPARATUS FOR EXTRACTING OILS AND OTHER LIQUIDS FROM THE SUBSTANCES IN WHICH THEY ARE CONTAINED
Year: 1869

page_text: LETTERS PATENT to David Joy, of Saltburn, in the County of York,
Engineer, for the Invention of "IMPROVEMENTS IN MEANS AND
APPARATUS FOR EXTRACTING OILS AND OTHER LIQUIDS FROM THE SUBSTANCES
IN WHICH THEY ARE CONTAINED."
Sealed the 16th July 1869, and dated the 2nd February 1869.
PROVISIONAL SPECIFICATION left by the said David Joy at the
Office of the Commissioners of Patents, with his Petition, on the
2nd February 1869.
I, DAVID JOY, of Saltburn, in the County of York, Engineer, do
hereby declare the nature of the said Invention for "IMPROVEMENTS IN
MEANS AND APPARATUS FOR EXTRACTING OILS AND OTHER LIQUIDS FROM THE
SUBSTANCES IN WHICH THEY ARE CONTAINED," to be as follows:-
My improvements consist, first, in causing the faces between which
the oil seed or other substance to be pressed lies to act as strainers by
constructing them of a number of ribs or plates in form of a grid or
grate of any suitable figure or of cubes or polygons placed together,
so that through the interstices between such ribs, cubes, or polygons
the oil or other liquid to be extracted may escape, while the solid matter
is retained; or I use plates with holes cast, drilled, or punched there-
through, so as to permit of the drainage above named.

page_text: Second. In charging the material from which the oil or other fluid is
to be extracted into the press upon a plate provided for that purpose,
which plate is withdrawn before the pressure is applied.
And, third. In the application of a flap of leather or other suitable
material attached to the front of the press to close the open end
thereof.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said David Joy in the Great Seal Patent Office
on the 2nd August 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, DAVID
Joy, of Saltburn, in the County of York, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Second day of February, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
second year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said David Joy, Her special licence
that I, the said David Joy, my executors, administrators, and
assigns, or such others as I, the said David Joy, my executors,
administrators, and assigns, should at any time agree with, and no
others, from time to time and at all times thereafter during the term
therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the
Channel Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN
MEANS AND APPARATUS FOR EXTRACTING OILS AND OTHER LIQUIDS FROM THE
SUBSTANCES IN WHICH THEY ARE CONTAINED," upon the condition (amongst
others) that I, the said David Joy, my executors or administrators,
by an instrument in writing under my, or their, or one of their hands
and seals, should particularly describe and ascertain the nature of
the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within
six calendar months next and immediately after the date of the
said Letters Patent.
NOW KNOW YE, that I, the said David Joy, do hereby declare
the nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the

page_text: following statement and accompanying two Sheets of Drawings (that is
to say):
:-
My improvements consist, first, in causing the faces between which
the oil seed or other substance to be pressed lies to act as strainers by
constructing them of a number of ribs or plates in form of a grid or
grate of any suitable figure or of cubes or polygons placed together, so
that through the interstices between such ribs, cubes, or polygons the
oil or other liquid to be extracted may escape, while the solid matter
is retained; or I use plates with holes cast, drilled, or punched there-
through, so as to permit of the drainage above named.
Second. In charging the material from which the oil or other fluid
is to be extracted into the press upon a plate provided for that purpose,
which plate is withdrawn before the pressure is applied.
And, third. In the application of a flap of leather or other suitable
material attached to the front of the press to close the open end
thereof.
My Invention will be clearly understood by referring to the Figures and
letters on the accompanying two Sheets of Drawings, in which Figs.
1, 2, and 3 represent my improvements as applied to the ordinary press
boxes used for pressing oil seed and other similar material. Fig. 1 is
a cross section of a complete box with the drainage plate a placed on
the box bottom; Fig. 2, a longitudinal section of the same; Fig. 3,
a plan of the drainage plate; Fig. 4, a side elevation of a part of the
plate in detail; Fig. 5, a plan, and Fig. 6, a cross section of several of the
bars forming the end of a plate. The letters in all the Figures refer to
the same parts.
a is the drainage plate forming the bottom surface of the box on
which the bag containing the oil seed or other material to be pressed is
placed; e, e, are the bodies of the press boxes as usually made; and 6
is the space in which the bag is placed for pressure. The plate a is
formed of a number of bars f,f, of such form as collectively to give the
required figure to the bottom of the press box. These bars are bolted
together with washers g, g, g, between them, which said washers keep
the plates at such distances apart as to allow the drainage of the fluid
parts of the material under pressure, while the bags in which the solid
part of the material is contained are sustained uninjured on the surface
of the bars. Across the under side of the plate so formed are grooves h, h,
by which the oil or fluid escapes from under the plate into the side

page_text: drains of the press at k, k. The upper surface of the plate has cross
undulations so as to produce a cake of the usual ribbed figure.
Figs. 7 and 8 represent a side view and plan of a charging plate used
as a tray on which to bed the bags equally and place them in the press
boxes, after which the charging plate is withdrawn from under them, the
bags being left on the drainage plate a ready to be pressed.
If desirable I use cubes or polygons laid together and kept in position
by a frame (as shewn in Fig. 9), and so placed as to obtain the result
above described, but I prefer the arrangement illustrated in Figs. 10,
11, and 12, Sheet 2, where the plates or ribs are placed in a frame m,
having a loose lid n and cross grooves o, by which means the bolts, nuts,
and washers above described are dispensed with, as the frame holds the
said plates or ribs firmly in position.
Having now described the nature and particulars of my said Invention,
and the manner in which the same is to be performed, I desire it to be
understood that I claim as my Invention, the improvements in means
and apparatus for extracting oils and other liquids from the substances
in which they are contained, as herein described and illustrated in the
accompanying Sheets of Drawings.
In witness whereof, I, the said David Joy, have hereunto
set my hand and seal, this Nineteenth day of July, in the year of
our Lord One thousand eight hundred and sixty-nine.
DAVID JOY (T.)