IMPROVEMENTS IN PRESSING APPARATUS FOR EXPRESSING OILS AND OTHER MATTERS FROM SEEDS OR OTHER SIMILAR SUBSTANCES IN WHICH THOSE MATTERS ARE CONTAINED.
Year: 1869

page_text: LETTERS PATENT to John Sterriker, of Great Driffield, in the County
of York, Chemist, for the Invention of "IMPROVEMENTS IN PRESSING
APPARATUS FOR EXPRESSING OILS AND OTHER MATTERS FROM SEEDS OR
OTHER SIMILAR SUBSTANCES IN WHICH THOSE MATTERS ARE CONTAINED.'
"
Sealed the 14th September 1869, and dated the 5th April 1869.
PROVISIONAL SPECIFICATION left by the said John Sterriker at
the Office of the Commissioners of Patents, with his Petition, on
the 5th April 1869.
I, JOHN STERRIKER, of Great Driffield, in the County of York,
Chemist, do hereby declare the nature of the said Invention for "IM-
PROVEMENTS IN PRESSING APPARATUS FOR EXPRESSING OILS AND OTHER MATTERS
FROM SEEDS OR OTHER SIMILAR SUBSTANCES IN WHICH THOSE MATTERS ARE
CONTAINED," to be as follows:--
My Invention relates to improvements founded upon those described
in the Specification of John Harker, for which he obtained Letters
Patent, dated the 1st day of April 1867. It relates to a hinge of special
form, by means of which I obviate the difficulties which occur in the use

page_text: of the ordinary hinge of leather which has hitherto been ordinarily used
with the pressing plates employed by the said John Harker. The hinge
when made of leather allows the pressing plates to move laterally
relatively to each other, and causes the bags containing the materials
intended to be pressed to be cut by the edges of the plates. I employ
pressing plates having grooved surfaces and pressing boxes, such as
are described in the above-mentioned Specification of John Harker.
In order to provide for the plates being firmly held relatively to each
other during the pressing operation, and for obviating the tendency to
lateral movement, I connect the plates by a special form of metalic
hinge, made by preference wholly or partly of steel. The leaves of the
hinge I attach respectively to the back edges of the pressing plates by
springs of steel, made of sufficient length and relative thinness to give
the required elasticity, allowing for the action of the pressure applied,
and at the same time sufficient rigidity to hold the plates steadily
without relative lateral movement. In some cases the leaves of the
hinge may be extended so as to act as springs.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said John Sterriker in the Great Seal Patent Office
on the 15th September 1869.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
STERRIKER, of Great Driffield, in the County of York, Chemist, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fifth day of April, 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 suc-
cessors, give and grant unto me, the said John Sterriker, Her special
licence that I, the said John Sterriker, my executors, administrators,
and assigns, or such others as I, the said John Sterriker, 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

page_text: "
PRESSING APPARATUS FOR EXPRESSING OILS AND OTHER MATTERS FROM SEEDS OR
OTHER SIMILAR SUBSTANCES IN WHICH THOSE MATTERS ARE CONTAINED,"
upon the
condition (amongst others) that I, the said John Sterriker, 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 John Sterriker, 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 following statement:-
My Invention relates to improvements founded upon those described
in the Specification of John Harker, for which he obtained Letters
Patent, dated the 1st of April 1867. It relates to a hinge of special
form, by means of which I obviate the difficulties which occur in the use
of the ordinary hinge of leather which has hitherto been ordinarily used
with the pressing plates as employed by the said John Harker. The
ordinary hinge when made of leather allows the pressing plates to move
laterally and also longitudinally relatively to each other and causes the
bags containing the materials intended to be pressed to be cut by the
edges and ends of the plates. I employ pressing plates having grooved
surfaces and pressing boxes, such as described in the above-mentioned
Specification of John Harker, and in order to provide for the plates
being firmly held relatively to each other during the pressing operation,
and for obviating the tendency to lateral and longitudinal movement, I
connect the plates by a special form of metallic hinge, made by preference
wholly or partly of steel.
The manner in which my improved hinge is constructed and applied
to the pressing plates will be fully understood by reference to the accom-
panying Sheet of Drawings, where Figs. I., II., III., show different
views of the pressing plates with my hinge applied to them, corres-
ponding parts being indicated by the same letters in the different
Figures.
A, B, is the centre pin forming the axis of the hinge, the leaves of the
hinge A, E, A, E, I make of steel, and I cut away a portion of the
centre parts D, C, D, C, so as to allow the axis of the hinge to be used

page_text: as a handle, which is found very useful in holding or moving the
pressing plates indicated by E, P, E, P. The edges of the leaves of
the hinge are fastened by rivets to the edges of the plates, as shewn
at E, E. By making the hinge of the form above described, it is found
that besides serving as a handle the form facilitates the escape of the oil
pressed out, and prevents that waste which attends the use of the old
form of closed hinge which caused the oil to be driven forward towards
and out from the front part of the plates. I have found it most
advantageous to make the leaves of the improved hinge of steel and of
the form described, but it is obvious that other elastic metal may be
used. Again, instead of making the leaves of the metal to act as springs,
springs may be separately applied to connect the leaves of the hinge
with the edges of the plates by rivets or otherwise. Again, instead of
using the centre pin or axis of the hinge as a handle, a curved handle
may be attached to the hinge or the ends of its axis, but such modifi-
cations are, I consider, less advantageous than that shewn by me in the
Drawings hereunto annexed.
Having now described my Invention and the manner in which it is to
be used and performed, I claim the construction and use of the improved
hinge applied as herein described.
In witness whereof, I, the said John Sterriker, have hereunto set
my hand and seal, this Twenty-seventh day of August, in the
year of our Lord One thousand eight hundred and sixty-nine.
JOHN STERRIKER. (L.S.)