AN IMPROVED STAMPING AND ENDORSING MACHINE
Year: 1857

page_text: LETTERS PATENT to Henry Robinson Palmer, of Lambeth, in the County
of Surrey, Engineer, for the Invention of "AN IMPROVED STAMPING AND
ENDORSING MACHINE."
Sealed the 30th April 1858, and dated the 5th November 1857.
PROVISIONAL SPECIFICATION left by the said Henry Robinson Palmer,
at the Office of the Commissioners of Patents, with his Petition, on
the 5th November 1857.
I, HENRY ROBINSON PALMER, of Lambeth, in the County of Surrey, Engineer,
do hereby declare the nature of the said Invention for "AN IMPROVED STAMP-
ING AND ENDORSING MACHINE," to be as follows:-
For the purposes of this Invention I make use of a stem or handle, to which
are jointed radius links or bars moving on fixed centres attached to the
framing of the machine, and forming a parallel motion, whereby the movement
of the stem or handle is guided in such manner as to cause the surface of
the stamp or die affixed thereto to meet the surfaces of the inking and stamp-
ing cushions in a perfectly parallel manner, thereby ensuring its whole surface
receiving a due amount of ink or colouring matter, and transferring the same
clearly and evenly to the paper or other surface to be stamped or endorsed.
The inking and stamping cushions are made circular in form, and larger than
the die intended to be used therewith; they may be placed eccentrically as

page_text: regards the position in which they are struck by the die, so that their re-
volution may cause different: portions of their surfaces to be successively
presented to its action, and may be caused to revolve by means of ratchet
wheels moved by the machine which may be either actuated by the hand
applied directly to the stem or handle carrying the die, or through the inter-
vention of levers, or otherwise, for giving increased power.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Henry Robinson Palmer in the Great Seal Patent Office on
the 5th May 1858.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, HENRY
ROBINSON PALMER, of Lambeth, in the County of Surrey, Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifth day of November, in the year of our Lord
One thousand eight hundred and fifty-seven, in the twenty-first year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said Henry Robinson Palmer, Her special licence that I, the said Henry
Robinson Palmer, my executors, administrators, and assigns, or such others
as I, the said Henry Robinson Palmer, 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 "AN IMPROVED STAMPING AND ENDORSING MACHINE," upon, the condition
(amongst others) that I, the said Henry Robinson, Palmer, 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 Henry Robinson Palmer, 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 :-
For the purposes of this Invention I make use of a stem or handle, to

page_text: which are jointed radius links or bars moving on fixed centres attached to
the framing of the machine and forming a parallel motion, whereby the
movement of the stem or handle is guided in such manner as to cause the
surface of the stamp or die affixed thereto to meet the surfaces of the inking
and stamping cushions in a perfectly parallel manner, thereby ensuring its
whole surface receiving a due amount of ink or coloring matter, and trans-
ferring the same clearly and evenly to the paper or other surface to be stamped
or endorsed. The inking and stamping cushions are made circular in form
and larger than the die intended to be used therewith; they may be situated
eccentrically as regards the position in which they are struck by the die, so
that their revolution may cause different portions of their surfaces to be
successively presented to its action, and may be caused to revolve by means of
ratchet wheels moved by the machine, which may be either actuated by the
hand applied directly to the stem or handle carrying the die, or through the
intervention of levers, or otherwise, for giving increased power.
Fig. 1 of the accompanying Sheet of Drawings, represents a side elevation,
partly in section, of a machine constructed according to my said Invention;
Fig. 2, an end elevation of the same, shewing the inking cushion nearest the
eye; Fig. 3 a corresponding elevation of the opposite or stamping end of the
machine; and Fig. 4, a plan of the machine.
a represents a stem (having its upper portion formed so as to be grasped
conveniently by the hand) carrying the die b, and formed with cross arms c,
to which are jointed the radius links or bars d, d, e, and f; the lower pair of
radius links (d) are fixed upon a short shaft or spindle g supported in bearings
formed in the framing h, attached to the base plate i of the machine. The
upper pair of radius links (e and f) are supported by and free to turn upon
fixed studs j, carried by the framing h; a crank k is fixed upon the shaft g,
at right angles to the radius links d, and coupled by the connecting link
with a corresponding crank m, formed with the radius link e for the purpose of
causing the upper and lower pairs of radius links to move with uniformity and
ease in passing over the centre as herein-after described. The circular inking
cushion n is formed with a central pin o, which fits into and is free to revolve
in the nut p, adjustable by means of the screw q, so that by making use of
both the circular and straight line motions, the inking pad may be moved to
bring all parts thereof successively under the action of the die.
The form of the pad is that of a dish or plate which contains the ink, and
is fitted with a corresponding cover formed of cloth, felt, or other absorbent
inaterial upon which the die strikes, and through which the ink finds its way
to the surface; the stamping cushion s is formed of cloth or other elastic

page_text: material. In using the machine the handle of the stem a is grasped in the
hand, and the paper or other material to be stamped placed upon the cushion
s; a light blow upon the inking cushion covers the surface of the die evenly
with ink; it is then carried by the hand over the centre in the direction shewn
by the dotted lines, and struck upon the material to be stamped. The alternate
operations of inking the die and giving the impression are thus performed
with ease and rapidity by a natural and free movement of the hand as nearly
as possible correspondent with that of stamping by the common hand stamper
only.
:
Fig. 5 represents a mode of imparting rotary motion to the inking pad by
means of a ratchet wheel t to which motion is given by a rod u, the curved
end of which is struck and moved by the crank k at each stroke of the
machine.
:
Figs. 6 and 7 are respectively a side elevation and plan of a form of inking
pad, consisting of an endless web v passing over two rollers.w, working in a
trough or box x; formed with a cavity or well for containing the ink which is
supplied to the web v by the roller y (revolving in the cavity) working in
conjunction with the roller z; motion is imparted to the web by an endless
cord driven from the shaft g which drives a pulley 1, working loose upon the
end of the roller w, and provided with a pall taking into a ratchet wheel, in
order to move the web in one direction only:
Fig. 8 is an arrangement of the machine having the base plate i formed so
as to admit of stamping papers, &c. at a considerable distance from the margin.
Fig. 9 shews a method of driving the machine by a continuous rotary
motion; in this arrangement the drum or pulley 2, driven by foot. or other
power, has a continuous rotary motion, and carries a pin or stud 3, which takes
into a slot formed in the segment lever 5, having its fulcrum at 6, and giving
motion to the segment 7, fixed upon the end of the shaft g of the machine.
The rotation of the pulley 2 gives a vibratory motion to the lever 5, the
segment of which acting upon the corresponding segment 7, causes the
stamper to be struck alternately upon the inking and stamping cushions.
Having now described the nature of my said Invention, and several modes
in which I consider it desirable that the same should be carried into effect, I
would remark that I do not confine myself to the precise forms or arrange-
ments represented; but that what I claim with reference thereto.is,-...
Firstly, the use or employment of a parallel motion for the purpose of
guiding the die holder, as herein-before described.
And, secondly, the construction of inking pads, having a dish or cavity
for containing. the ink or other coloring matter, and covered with an

page_text: absorbent material, whereby the ink or other matter may pass outward to the
surface of the pad, as herein-before described.
In witness whereof, I, the said Henry Robinson Palmer, have hereunto
set my hand and seal, this Fifth day of May, in the year of our
Lord One thousand eight hundred and fifty-eight.
Witness,
HENRY ROBINSON (L.S.) PALMER.
FRANCIS WISE, Patent Agent,
108, Fleet St., London.