IMPROVEMENTS IN LITHOGRAPHIC PRINTING PRESSES."
Year: 1855

page_text: LETTERS PATENT to Andrew Maclure, of 37, Walbrook, in the City of
London, for the Invention of "IMPROVEMENTS IN LITHOGRAPHIC PRINTING
PRESSES."
"
Sealed the 3rd June 1856, and dated the 8th December 1855.
PROVISIONAL SPECIFICATION left by the said Andrew Maclure at the
Office of the Commissioners of Patents, with his Petition, on the 8th
December 1855.
I
I, ANDREW MACLURE, of 37, Walbrook, in the City of London, do hereby
declare the nature of the Invention for "IMPROVEMENTS IN LITHOGRAPHIC
PRINTING PRESSES " to be as follows:-
This Invention has for its object a more convenient arrangement of the parts
of a lithographic printing press, in order to apply steam or other power to move
the table or bed of the press and the stone thereon, and to relieve the pressman
from that part of the duty.
For this purpose, the table or bed is prolonged, so as at all times to be over
the roller, by which it is moved; but in place of the roller being at rest for a
time, and then put in motion by the workman, in order to move the table or
bed, as heretofore, the roller is kept in constant motion by steam or other
power, but at a distance from the under surface of the moveable bed or table
of the press; and then when the pressman requires the bed or table with the
stone thereon to be moved, the pressman or another has simply, by a lever or
otherwise, to move the roller or bed a short distance to bring their surfaces in
contact, when the power applied to keep the roller constantly in motion will by
the roller propel the table or bed to the desired extent, and the bed or table
will be brought back by a weight or otherwise.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Andrew Maclure in the Great Seal Patent Office on the
7th June 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ANDREW
MACLURE, of 37, Walbrook, in the City of London, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eighth day of December, in the year of our Lord
One thousand eight hundred and fifty-five, in the nineteenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Andrew Maclure, Her special licence that I, the said Andrew Maclure,
my executors, administrators, and assigns, or such others as I, the said Andrew
Maclure, 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 LITHOGRAPHIC
PRINTING PRESSES," upon the condition (amongst others) that I, the said
Andrew Maclure, 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 Andrew Maclure, 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:-
This Invention has for its object a more convenient arrangement of the
parts of a lithographic printing press, in order to apply steam or other power
to move the table or bed of the press and the stone thereon, and to relieve the
pressman from that part of the duty.
For this purpose, the table or bed is prolonged, so as at all times to be over
the roller, by which it is moved; but in place of the roller being at rest for a
time, and then put in motion by the workman in order to move the table or
bed, as heretofore, the roller is kept in constant motion by steam or other
power, but at a distance from the under surface of the moveable bed or table
of the press; and then when the pressman requires the bed or. table. with the
stone thereon to be moved, the-pressman or another has simply, by a lever or

page_text: otherwise, to move the roller or bed a short distance to bring their surfaces in
contact, when the power applied to keep the roller constantly in motion will
by the roller propel the table or bed to the desired extent, and the bed or
table will be brought back by a weight or otherwise.
And in order that my said Invention may be most fully understood and
readily carried into effect, I will proceed to describe the Drawing hereunto
annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 is a plan, Figure 2 a longitudinal section, and Figure 3 an end
elevation, of a lithographic press arranged according to my Invention.
a is the main shaft, which is driven by a band and pulley; 6 is a pinion on
the axis a; c is an axis carrying the cog wheel d, which receives motion from
the pinion b, the axis c turning in bearings e, which are capable of sliding up
and down in guides or openings in the side framing; f is a roller mounted on
the axis c; g is an axis passing from side to side of the machine, and which
has mounted on it the excentrics or cams h, and on the excentrics or cams
the bearings e of the axis c rest; i is a handle, by which a partial rotatory
motion can be given to the axis c, so as to cause the excentrics or camsh to
act on the under side of the bearings e, and raise the roller finto contact with
the under side of the carriage or bed of the press, and thus the said carriage is
caused to move forward and carry the stone under the scraper or pressing
instrument, by the action of which the ink is transferred from the stone to the
paper, and the stone may be brought back either by hand, or by the action of
a counterpoise weight.
In witness whereof, I, the said Andrew Maclure, have hereunto set
my hand and seal, this Fifth day of June, in the year of our Lord
One thousand eight hundred and fifty-six.
Witness,
0
L. B. MALIM,
ANDREW MACLURE. (L.S.)
Clerk to Messrs. Wilson & Bristow,
1, Copthall Buildings, London.