INDROUPMENTS IN LITHOGRAPHIC PRINTING PRESSES
Year: 1863

page_text: LETTERS PATENT to Richard Dickson, Engineer, in the Employ of Messrs.
Waterlow and Sons, of London Wall, in the City of London, for the
Invention of INDROUPMENTS IN LITHOGRAPHIC PRINTING PRESSES."
PROVISIONAL SPECIFICATION left by the said Richard Dickson at the
Office of the Commissioners of Patents, with his Petition, on the
10th August 1863.
I, RICHARD DICKSON, Engineer, in the Employ of Messrs. Waterlow and
Sons, of London Wall, in the City of London, do hereby declare the nature of
the said Invention for "IMPROVEMENTS IN LITHOGRAPHIC PRINTING PRESSES," to
be as follows:-
power
of
My improvements relate to the working by steam or other motive
lithographic printing presses, such as are usually worked by hand, by which
said improvements also the lithographic pressman is enabled without other
assistance to work the press, and his own labour is materially lessened.
My improvements consist in constructing or fitting lithographic presses with
a driving shaft parallel to the impression shaft, to which driving shaft is
attached a pulley for the driving band upon the driving shaft; outside of the
framing of the press is a loose pinion, which has attached to it claws, and the
driving pulley is provided with corresponding claws this pinion is geared
with a wheel keyed on to the impression roller shaft. Beneath the impression
roller is a horizontal bar supported by bearings at each end of frame of press.

page_text: At the side of the said bar, at or near to its centre, is attached a claw, and
upon the eccentric shaft worked by the impression lever is fixed a corre-
sponding claw. These two claws last mentioned being put into gear by the
impression lever bring the driving pulley and loose pinion on driving shaft
also into gear by means of their claws first herein-before mentioned, by
which motion is imparted to the impression roller, and thereby to the table
carrying the stone. One end of the before-mentioned horizontal bar is fitted
with a bracket so as to form a stop, with a sliding piece and set screw so as to
shorten or extend the travel of the table and stone, as may be required. Upon
the table coming into contact with the stop upon the horizontal bar an amount
of motion is imparted to the bar, which motion is sufficient and is made avail-
able by means of a crank, for the purpose of throwing the loose pinion and
pulley out of gear, and thereby arresting the rotary motion of the impression
roller. The pressure now being taken from off the table by means of the
impression lever, the table comes into contact with two rollers fixed upon the
driving shaft and rotating therewith, by means of which rollers the table is
returned to its original position.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Dickson in the Great Seal Patent Office on the
9th February 1864.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
DICKSON, Engineer, in the Employ of Messrs. Waterlow and Sons, of London
Wall, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of August, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-seventh year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
nie, the said Richard Dickson, Her special licence that I, the said Richard
Dickson, my executors, administrators, and assigns, or such others as I, the
said Richard Dickson, my executors, administrators, or 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 "Im-
PROVEMENTS IN LITHOGRAPHIC PRINTING PRESSES," upon the condition (amongst
others) that I, the said Richard Dickson, my executors or administrators, by

page_text: 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 Richard Dickson, 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 improvements relate to the working by steam or other motive power of
lithographic printing presses such as are usually worked by hand, by which
said improvements also the lithographic pressman is enabled without other
assistance to work the press, and his own labor is materially lessened.
In order that the nature of my said Invention and the manner in which the
same is effected may be particularly described and ascertained, I to this Speci-
fication append a Sheet of Drawings, having figures and letters of reference
marked thereupon, similar letters being used to denote the like parts in each
Figure.
In these Drawings Figure 1 is a side elevation, Figure 2 an end elevation,
and Figure 3 a plan, of a lithographic printing press constructed with my
improvements. Figure 4 will be herein-after explained. These Figures are
one-quarter size.
It will be seen by reference to these Drawings that my improvements
consist in constructing or fitting lithographic printing presses with a driving
shaft A, A, parallel to the impression cylinder or shaft. To this driving shaft A,A,
is attached a pulley B for the driving band. Upon the driving shaft outside
of the framing of the press is a loose pinion C, which has attached to it claws
c, c, and the driving pulley B is provided with corresponding claws b, b. This
pinion C is geared with a wheel D keyed on to the impression roller shaft. E, E.
Beneath the impression roller is a horizontal bar F, supported by bearings
G, G, at each end of frame of press. At the side of the said bar at or near to
its centre is attached a claw, and upon the eccentric shaft X worked by the
impression lever H is fixed a corresponding claw; these two claws are shewn
separately in the view Figure 4. Upon these two claws last mentioned being
put into gear by the impression lever H, they bring the driving pulley B and
loose pinion C on driving shaft A, also into gear by means of their claws b, b, and
c, c, first berein-before mentioned, by which motion is imparted to the impres-
sion roller, and thereby to the table carrying the stone. One end of the before-
mentioned horizontal bar F is fitted with a bracket K, so as to form a stop,

page_text: with a sliding piece L and set screw 1, so as to shorten or extend the travel of
the table and stone, as may be required. Upon the table coming into contact
with the stop upon the horizontal bar, an amount of motion is thereby imparted
to the bar, which motion is sufficient and is made availablo by means of a
crank M, for the purpose of throwing the loose pinion and pulley out of gear,
and thereby arresting the rotary motion of the impression roller. The pressure
now being taken from off the table by means of the impression lover H, the
table comes into contact with two rollers a, a, fixed upon the driving shaft A,
and rotating therewith, by means of which rollers the table is returned to its
original position.
Having now by this Specification and appended Drawings particularly
described and ascertained the nature of my said Invention, and the manner in
which the same is to be performed, I do not claim as of my Invention the
working of lithographic printing presses by steam or motive power other than
hand power, such having been done before by other means; but what I claim
is the arrangement or combination of parts for so working them, as in this
Specification and appended Drawings described and shewn.
In witness whereof, I, the said Richard Dickson, have hereunto set
my hand and seal, this Ninth day of February, in the year of our
Lord One thousand eight hundred and sixty-four.