IMPROVEMENTS IN LITHOGRAPHIC PRINTING MACHINERY
Year: 1872

page_text: LETTERS PATENT to William Edward Newton, of the Office for
Patents, 66, Chancery Lane, in the County of Middlesex, Civil
Engineer, for the Invention of "IMPROVEMENTS IN LITHOGRAPHIC
PRINTING MACHINERY."-A communication from abroad by Richard
March Hoe, of the City and State of New York, United States of
America.
Sealed the 2nd July 1872, and dated the 20th February 1872.
PROVISIONAL SPECIFICATION left by the said William Edward
Newton at the Office of the Commissioners of Patents, with his
Petition, on the 20th February 1872.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LITHOGRAPHIC PRINTING
MACHINERY," to be as follows :—
PROVISIONAL SPECIFICATION left by the said William Edward
Newton at the Office of the Commissioners of Patents, with his
Petition, on the 20th February 1872.
I, WILLIAM EDWARD NEWTON, of the Office for Patents, 66, Chancery
Lane, in the County of Middlesex, Civil Engineer, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN LITHOGRAPHIC PRINTING
MACHINERY," to be as follows :—
This Invention relates to improvements in lithographic printing
machinery, and consists, first, in improved means for regulating the

page_text: supply of water to the damping or wetting apparatus of such machinery.
To this end I provide a regulating cam to hold the taking roller of the
damping apparatus in contact with the fountain roller for varying
lengths of time. This cam consists of a boss or bub with a series of
cam surfaces of gradually increased lengths formed thereon. This hub
slides on a horizontal shaft, and is connected thereto by a feather or
key. The hub is slidden along its horizontal shaft by means of a rod
mounted in bearings, and provided with a fork which takes into a
groove formed on one end of the hub so that any desired length of cam
surface may be caused to operate upon the connecting rod or lever of
the taking roller, and to hold the same in contact (for varying lengths
of time) with the fountain roller so as to become charged with and
transmit to the damping rollers any desired amount of water.
Secondly this Invention consists in constructing the reciprocating
tables or bed boxes of lithographic machines (similar to the improved.
machinery for which a Patent was granted to W. E. Newton, dated
August 29th, 1870, No. 2368) so as to be capable of receiving two or
more stones to be printed from simultaneously.
For this purpose
guides are provided in the inner side of the bed in which are placed
the ends of a separating piece or bar (furnished with the necessary bind-
ing and adjusting screws) which will divide the bed box into two,
and into each of these recesses a stone is placed, and each stone may
be adjusted independently of the other.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Edward Newton in the Great Seal Patent 2
Office on the 20th August 1872.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD NEWTON, of the Office for Patents, 66, Chancery Lane, in the
County of Middlesex, Civil Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her 3
Letters Patent, bearing date the Twentieth day of February, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
fifth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto me, the said William Edward Newton, Her special

page_text: licence that I, the said William Edward Newton, my executors, admi-
nistrators, and assigns, or such others as I, the said William Edward
Newton, my executors, administrators, and assigns, should at any time
agree with, and no others, from time to time and 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 MACHINERY," being a communi-
cation to me from abroad by Richard March Hoe, of New York City,
United States of America, upon the condition (amongst others) that I,
the said William Edward Newton, 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 William Edward Newton, 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, reference being had to the Drawings
hereunto annexed, and to the letters and figures marked thereon (that
is to say) :-
This Invention relates to improvements in lithographic printing
machinery, and consists first in improved means for regulating the
supply of water to the damping or wetting apparatus of such machinery.
For more perfectly regulating the supply of water to the stone or
stones of lithographic printing machines while under operation I provide
a regulating cam to hold the taking roller of the damping apparatus in
contact with the fountain roller for varying lengths of time according
to the size of the stone to be operated upon. The quantity of water to
be given to the damping rollers is therefore regulated by the length of
time the taking roller is held up in contact with the fountain roller, and
that time is governed as may be desired by the peculiar construction of
this cam.
In the accompanying Drawings Fig. 1, Sheet I., represents in side
elevation part of a lithographic printing machine with the present.

page_text: improvement adapted thereto; Fig. 2 is an end view of the same, some
of the parts being shewn in section.
The water reservoir fountain roller A. and its accessories (which are
mounted on the frame of the machine and are operated from the shaft B)
are similar to those shown and described with reference to the machine
for which Letters Patent were granted to me bearing date the Twenty-
ninth day of August One thousand eight hundred and seventy,
No. 2368. The present improvement relates more particularly to a
cam of peculiar construction for operating the taking roller of this
mechanism. This cam is shewn in side and end elevation, and drawn
on an enlarged scale at Fig. 3, and consists of a boss or hub C with a
series of cam surfaces c, c, c, of gradually increased lengths formed
thereon. This hub C is capable of sliding on the horizontal shaft B,
and is connected thereto by a feather or key so as to be turned with the
shaft B in whatever position it may be thereon. The hub C is slidden
along its horizontal shaft by means of the rod D mounted in bearings in
the framing of the machine and provided with a fork which takes into
a groove c³ formed in one end of hub C, so that any desired length of
cam surface may be brought under and caused to operate upon the
bowle E of the vertical connecting rod F, which at its upper end is
jointed to a lever G keyed to a cross shaft G¹ carrying arms G³ in which
the taking roller H is supported. By this means the cam C may be
caused to hold the taking roller H in contact with the fountain roller
for the required length of time so as to become charged with and to
transmit to the damping rollers any desired amount of water according
to circumstances. The cam C may be adjusted in the desired position
upon the shaft B by moving the rod D (provided with a handle d
for that purpose), and may be secured from any accidental movement
by pressing down the sliding catch I into one of the notches in the
rod D.
The second improvement consists in constructing the reciprocating
tables or bed boxes of lithographic printing machines (similar to the
lithographic machines for which Letters Patent were granted to me as
aforesaid), so that they may be capable of receiving two or more stones
to be printed from simultaneously. Fig. 4, Sheet II. of the Drawings,
represents in plan view the ordinary bed box A as fitted to receive a
single stone B, but capable of being adapted to receive two or more
stones which may be printed from simultaneously. Fig. 5 is a cross

page_text: section of the same; C is the table or bed (placed in the bed box) and
on which the stone is carried, and which is capable of being raised and
lowered (to adjust the height of the stone) by means of the set screws c, c,
passing through the tapped bosses at opposite sides of the bed or table C,
and the stone is secured from sideway movement and adjusted in position
by the screws a, a, a, a, which pass through tapped bosses cast on the
sides and ends of the bed box A. Suitable wedges or bearing pieces of
wood or iron b, b, are inserted between the heads of the screws and the
sides of the stone before the screws are tightened up. In order to adapt
the traversing bed box to receive two tables and stones the stone B is to
be first removed and the ordinary bed or table C which is fitted to receive
one stone only is taken out. In order to prepare the bed box A to
receive two or more stones guides A¹ are cast on or screwed to the inner
side of the bed box A, and into these guides A¹ are placed the ends of a
separating piece or bar D, so as to divide the bed box into two parts or
boxes, as shewn in Sheet III. of the Drawings, in which Fig. 6 is a plan
view of a portion of the machine shewing the traversing bed and inking
rollers; Fig. 7 is a cross section of the same, and Fig. 8 a side view of
the adjustable side frames of these inking rollers. The separating bar D
is furnished with the necessary binding or adjusting screws a, a, so
that each half of the box A is complete in itself and is fitted to receive
a stone, the bed box A being thus made to carry two stones, one in each
of these recesses or compartments. A table C is placed in each recess
or compartment, on which a stone may be arranged, and each stone may
be adjusted independently of the other by means of the binding screws
a, a, and c, c, as described in reference to Figures 4 and 5. It will be
obvious that the bed box may be divided in this manner into three, four,
or more compartments, each complete in itself and capable of receiving
a stone with its adjusting screws.
To secure the equal and proper inking of the stone the frames E' which
carry the bearings of the inking rollers E, Figures 6, 7, and 8, are capable
of adjustment on the side frames of the machine and are secured to the
latter by means of screws e, e, which pass through slots in the feet of
the bearing frames E', so that the latter may be set in a position to place
the rollers at an angle to the line of travel of the bed. The inking
rollers are divided into two sets which may be set at reverse inclinations
to the line of traverse of the stones, by which means a slight lateral or
endway motion will be communicated to the rollers E by the passage

page_text: of the stones beneath them, thus securing a better and more equal inking
of the same.
In order still further to effect a proper distribution of the ink addi-
tional or riding rollers G, G, are made to rest upon and rotate with the
lower rollers, but as these latter have an endway motion communicated
to them as already explained, the upper or riding rollers should be
prevented from having any endway motion, or at any rate such motion
should be of a limited character, to which end the spindles of the riding
rollers G¹ are provided with stops, as seen at 9 in Fig. 6. These riding
rollers are indicated by dots in Fig. 8, but one only is shewn in position
at Fig. 6 in order to avoid confusion in the Drawing.
Having now described the Invention which has been communicated
to me by my foreign correspondent, and having explained the manner
of carrying the same into effect, I wish it to be understood that under
the above in part recited Letters Patent I claim,—
First. Operating the taking roller of the damping apparatus of litho-
graphic printing presses by means of an adjustable cam as herein set
forth, so that the supply of water to the damping rollers or other
analogous apparatus of lithographic printing machines may be regulated
according to the nature of the work to be done.
Second Adapting to the bed box of lithographic printing machines
moveable separating pieces or partitions whereby the bed box may be
divided into separate compartments, each complete in itself with the
necessary adjustments, and capable of receiving a stone so that two or
more stones may be printed from simultaneously as herein set forth.
Third. I claim mounting the inking rollers of lithographic printing
machines in the manner and for the purpose herein set forth.
In witness whereof, I, the said William Edward Newton, have
hereunto set my hand and seal, the Twentieth day of August,
in the year of our Lord One thousand eight hundred and seventy-
two.