IMPROVEMENTS IN THE CONSTRUCTION OF COPYING PRESSES
Year: 1869

page_text: LETTERS PATENT to Charles Edward Schoeller, of South Hackney, in
the County of Middlesex, for the Invention of "IMPROVEMENTS IN
THE CONSTRUCTION OF COPYING PRESSES."
Sealed the 18th March 1870, and dated the 20th September 1869.
PROVISIONAL SPECIFICATION left by the said Charles Edward
Schoeller at the Office of the Commissioners of Patents, with his
Petition, on the 20th September 1869.
I, CHARLES EDWARD SCHOELLER, of South Hackney, in the County
of Middlesex, do hereby declare the nature of the said Invention for
"INPROVEMENTS IN THE CONSTRUCTION OF COPYING PRESSES," to be as follows:-
My Invention relates to improvements in the construction of presses
for copying letters or other written documents.
I employ the ordinary absorbent "copying paper" damped in the
usual manner when required for use, and arranged in the form of a book
or otherwise, and I place such copying book or paper with the letter to
be copied between folding covers, surfaces, or frames formed of suitable
materials and of sufficient strength to form plates for applying the

page_text: necessary pressure to the copying book or paper placed between them.
The folding covers or frames are hinged together by metallic hinges.
After the copying book or paper has been placed between the folding
covers such covers are caused to press upon the copying book or paper.
This is effected in the following manner :-I provide a link or links
hinged to the edge of one of the folding covers, and to these links I hinge
a lever or finger plate formed with knuckle or projecting fulcrum pieces.
Upon the other folding cover I secure projecting catch pieces so formed
that when the knuckles upon the levers are placed upon them the
knuckles and the projecting pieces engage with each other, and by
turning over the lever the folding covers are caused to press powerfully
upon the book or paper between them. The knuckle pieces and the
pieces with which they act are so arranged that when the lever or finger
plate is turned over upon the folding covers such lever will remain and
be held in the folded position, and the whole form a compact and port-
able press. The parts where the covers or frames are hinged together
and where the hinged levers and projecting catches are attached to the
covers may be so formed as to yield under pressure, and so distribute
and equalize the pressure and enable the apparatus to accomodato
itself to some extent to the substance of the book or paper under
pressure.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Charles Edward Schoeller in the Great Seal
Patent Office on the 19th March 1870.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, CHARLES
EDWARD SCHOELLER, of South Hackney, in the County of Middlesex,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twentieth day of September, in the year
of our Lord One thousand eight hundred and sixty-nine, in the thirty-
third year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said Charles Edward Schoeller, Her special
licence that I, the said Charles Edward Schoeller, my executors,
administrators, and assigns, or such others as I, the said Charles
Edward Schoeller, my executors, administrators, and assigns, should

page_text: 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 THE CONSTRUCTION OF COPYING PRESSES,"
upon the condition (amongst others) that I, the said Charles Edward
Schoeller, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and seals, should particu-
larly 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 Charles Edward Schoeller, do
hereby declare the nature of the said Invention, and in what manner the
same is to be performed, to be particularly described and ascertained in
and by the following statement thereof, that is to say :-
My Invention relates to improvements in the construction of presses
for copying letters or other written documents.
And in order that my Invention may be fully understood and readily
carried into practice, I will proceed to describe the Drawings hereunto

page_text: manner :-I provide a link (or links) B' hinged to or near the edge of
one of the folding covers B, and to these links B³ I hinge a lever or
finger plate B formed with knuckle or projecting fulcrum pieces B*.
Upon the other folding cover B¹ I secure projecting catch pieces B° so
formed that when the knuckles B³ upon the lever B are placed upon the
catch pieces B', the knuckles B and the projecting pieces B engage
with each other, when by turning over the lever B* the folding covers
B, B¹, are caused to press powerfully upon the book A or paper between
them. The knuckle pieces B' and the pieces Be with which they act are
so arranged that when the lever or finger plate B' is turned over upon the
folding covers B, B¹, such lever B' will remain and be held in the folded
position, and the whole form a compact and portable press. The spring
pieces B and B are applied to the covers B and B'. The spring pieces
B' and B form the hinges by which the covers or frames B, B³, are
hinged together at B, and the spring pieces B7, B³, also carry the
hinged levers B' and projecting catches B. I form the spring pieces
B and B so as to yield under pressure, and distribute and equalize the
pressure and enable the apparatus to accomodate itself to some extent
to the substance of the book or paper under pressure. The spring
pieces B and B are connected to the covers B, B', by means of the
studs B fixed to the covers B, B'. The studs B" pass through apertures
in the spring pieces B', B', which are so formed as to allow sufficient
play for the yielding of such pieces B7, B³.
Having now described the nature of my Invention, and means whereby
the same may be carried into practice, I would have it understood that
I do not limit myself to the exact form or details of construction herein-
before described and shewn in the Drawings hereunto annexed so long
as the peculiar features of my Invention be retained; and I would further
remark that the copying book or paper employed may be provided with
covers of sufficient strength, in which case the hinged spring frame
B, B', B, provided with the parts B³, B, B, and B' may be employed in
accordance with my Invention in the form of hinged clasps for applying
the requisite pressure; I would also further remark that in a copying
press constructed in accordance with my Invention the pressure pro-
duced by the action of the hinged links B³, lever B', and knuckle
pieces B³ may be distributed and equalized by yielding elastic substances
or parts variously formed or applied in place of the spring pieces B'
and B.

page_text: First. The combination and arrangement of parts into a press for
copying letters, substantially as herein-before described and shewn in the
accompanying Drawings.
Secondly. The application and use of the lever knuckle pieces B*, B',
hinged to the links B³ and acting with the catch pieces B, as and for
the purposes herein-before described and shewn in the accompanying
Drawings.
In witness whereof, I, the said Charles Edward Schoeller, have
hereunto set my hand and seal, this Fifteenth day of March,
in the year of our Lord One thousand eight hundred and
seventy.