IMPROVEMENTS IN MACHINERY FOR FOLDING ENVELOPES
Year: 1855

page_text: LETTERS PATENT to Joseph Addenbrooke, of Bartlett's Passage, in the
City of London, Envelope Maker, for the Invention of "IMPROVEMENTS
IN MACHINERY FOR FOLDING ENVELOPES."
PROVISIONAL SPECIFICATION left by the said Joseph Addenbrooke at
the Office of the Commissioners of Patents, with his Petition, on the
24th May 1855.
I, JOSEPH ADDENBROOKE, of Bartlett's Passage, in the City of London,
Envelope Maker, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY FOR FOLDING ENVELOPES" to be as follows;
and relates to improvements in machinery at present employed for folding
envelopes; and consists in adding to such machinery the stamping in cameo,
(or a device formed on coloured ground), and also the introduction of printing
by letter-press, lithography, or any of the known processes of printing or
impressing on envelopes during the operation of folding by envelope-folding
machines.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Joseph Addenbrooke in the Great Seal, Patent Office on the
24th November 1855.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I,. JOSEPH
ADDENBROOKE, of Bartlett's Passage, in the City of London, Envelope Maker,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-fourth day of May, in the year of our Lord
One thousand eight hundred and fifty-five, in the eighteenth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto me, the said
Joseph Addenbrooke, Her special licence that I, the said Joseph Addenbrooke,
my executors, administrators, and assigns, or such others as I, the said
Joseph Addenbrooke, 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
MACHINERY FOR FOLDING ENVELOPES," upon the condition (amongst others) that
I, the said Joseph Addenbrooke, by an instrument in writing under my hand
and seal, 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 Joseph Addenbrooke, 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
These improvements consist in adding to the machinery at present in use
for folding envelopes an apparatus or apparatusses for the stamping in cameo
for a device formed on coloured or white ground, and also the introduction of
printing (by letter-press or any other of the known modes of printing) on
envelopes during the operation of folding by envelope-folding machines.
In the annexed Sheets of Drawing, Fig. 1 represents an elevation of the
apparatus with part of an envelope-folding machine; Fig. 2 is a plan of
the apparatus and section of part of the machine.
By the apparatus shewn, the inking or colouring of the cameo and type
takes place prior to the paper being laid under the stampers or pressers, the
description and operation of which are as follows:-A is the plate on which

page_text: the folding machine and apparatus is fixed.
The rollers a, b, c, d, are the
inking rollers, which receive their supply from a circular plate B, revolving on
a vertical spindle B' fixed in the plate A. This circular plate is supplied with
ink or colour by the distributing roller e, receiving the ink or colour from
the supply roller f, revolving under the trough f¹, containing the ink or
colour, and is detached from the framing C, which supports the other rollers.
The roller e, when in the position shewn, comes in contact with the roller f,
and takes away the superfluous ink or colour which is upon it for the above
purpose of inking the circular plate.
To one part of the framing C is rigidly attached the piece D, working in a
guide rod E, supported in any suitable manner, for the purpose of ensuring
the rollers moving in a direct line for inking or colouring the cameo g and
type h. Through the upper part of the piece D is fixed a pin, for receiving
one end of a lever F, which is worked by a cam on the shaft of the folding
machine, or in any other suitable manner, so that when it is required to ink
or colour the necessary parts, the lever F when put in motion will cause the
piece D to move, carrying with it the frame and rollers. Under and fixed to
the circular plate B is a ratchet wheel G, for the purpose of causing the said
circular plate to revolve so as to present a fresh surface to the inking rollers;
this is performed by the action of the projection i moving one of the arms of
the lever j, so that the other shall cause the shaft H, supported as shewn, to
move longitudinally. On this shaft a catch k is fixed, gearing into the
ratchet wheel G, and moves it the distance the shaft H travels. A spring
is placed on the same shaft, so as to cause it to rebound for the
ready to move the wheel at the next movement of the lever j.
bearings of the shaft H acts as an abutment for the spring.
catch to be
One of the
On the spindle or shaft that carries the supply roller fis fixed another
ratchet wheel m; this wheel is made to revolve by the catch n fixed on the
shaft H in the same manner as the wheel under the circular plate, for, the
purpose of supplying a fresh surface of the roller f to the distributing roller c.
After the surfaces of the die and type have received ink or colour, the envelope
blank is placed (by mechanism), as shewn in red outline, and, pressure being
applied, it becomes impressed with the devices on the die or type. This
pressure may be obtained by any of the well-known means of stampers, cams,
rollers, or dabs, used in this kind of machinery.
Having thus fully described the particulars and nature of my said Invention,
and the manner in which the same may be carried into effect, I wish it to be
understood that I do not confine myself to the exact form of apparatus, nor
to the position of the envelope as shewn, for the purposes above described, as

page_text: the operations may be performed in various ways on all or either of the lappets
of the envelope without deviating from the principle of my Invention; but
what I claim is, the application of the principle of stamping in cameo for a
device formed on coloured or white ground, and also the introduction of
printing (by letter-press or any of the known modes of printing) on envelopes
in combination with machinery for folding envelopes.
In witness whereof, I, the said Joseph Addenbrooke, have hereunto set
my hand and seal, this Twenty-fourth day of November, in the year of
our Lord One thousand eight hundred and fifty-five.
J. ADDENBROOKE. (L.B.)