Improvements in Printing and Lithographing Presses.
Year: 1898

page_text: Date of Application, 3rd Oct., 1398-Accepted, 28th Jan., 1899
COMPLETE SPECIFICATION.
Improvements in Printing and Lithographing Presses.
I, JOHANN BERNHARD GROSSE, of 20, Erdmann Strasse, Leipzig-Lindenau, King-
dom of Saxony, Empire of Germany, Proprietor of a Printing Office, 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;
-
The present invention consists of improvements in printing and lithographing
presses by means of which the paper to be printed may be simultaneously ruled and
the invention comprises the details of construction herein after set forth and
particularly pointed out in the claims.
And in order to render the present specification more easily intelligible
reference is had to the accompanying drawings in which similar letters of reference
denote similar parts throughout the several views:-
Fig. 1 is an end elevation partly in section of the device applied to a printing
press,
Fig. 2 is a front elevation of Fig. 1,
Fig. 3 a plan and
Fig. 4 a similar sectional end elevation to Fig. 1, with the ruling discs and
inking roll raised by the grippers of the printing cylinder.
Fig. 5 is a sectional end elevation of a modified form of the invention and
Fig. 6a front elevation of the same.
K represents the printing cylinder of an ordinary printing press and b the
grippers thereon for gripping the sheets fed to the press. The line.. ruling
apparatus forming the object of the present invention is mounted on or between
two end standards E and consists of the upper inking reservoir D having the
distributing ink or colour roll J, and a shaft B carrying a rubber or hard rubber
coating A, which rotates with the said roll B₁ but is longitudinally adjustable
thereon as hereinafter described. The roll and shaft C and B' are mounted in
arms F adapted to swing on pivots of the standards E, a second pair of arms F
may be suspended from one and the same pivot, the said arms forming the bearings
for the line producing discs A, A mounted on the shaft B, which discs run on the
surface of the cylinder K. Pivotally supported on suitable arms G¹ of the
standards or frame E and at either end of the roll C are levers H, H whilst the
ends of the distributing roll J are formed to cams as at a, a against which one
end of each of the levers H, having an antifriction roll, engages. The forward
ends of the said levers H engage the movable covering C of the shaft B' and the
cams a, a of the roll J are advantageously so formed that at one revolution of the
said roll the covering C will be moved from right to left by the left hand cam
surface and lever H whilst at the next revolution the movement takes place in
the opposite direction by means of the lever and cam at the opposite end of the
roll J.
The device operates in the following manner :-
After the grippers have fastened the sheet and when the cylinder revolves to
bring the said sheet into contact with the letter press or types arranged on the

page_text: bed of the press, the said sheet will first be passed under the dises A, A by which
it will be ruled. As soon as it has been subsequently printed the grippers 6 will
be opened in the usual manner (as is well known) and in opening to receive the
next sheet the said grippers will raise the arms F, F¹ of the two shafts B, B¹ thus
bringing the inking roll B, C into contact with the distributing roll J and inking
the same anew. Whilst the covering C of B1 is in contact with the edges of the
discs A it will be continually moved by the cam device described longitudinally
of its shaft so that the ink of the roll C will be properly used up and on the other
hand the discs will be prevented from cutting into the said coating. As soon as
the grippers 6 close down on to the next sheet of paper they lower the discs again
into operative position on the cylinder or drum K.
Figs. 5 & 6 show a modification of the device in which water colours may be
employed instead of the ink or colour of the usual consistency for printing presses.
In this case the trough D is filled with fluid colour which is transferred to the
roll C by means of a strip of suitable stuff which distributes the said colour
along the whole length of C by means of capillary attraction or suction. In this
case the coating of the roll C₁ need not be moveable. longitudinally of its, shaft.
In order to prevent the discs A from cutting into the said roll the disc shaft and
the shaft of Care provided with distance rolls N, N¹ which run one on the other
and thus relieve the coating C₁ of the weight of pressure on the edges of the discs.
If parts of the paper being printed are to remain without lines, discs M, M may be
keyed to the shaft of the discs A, A and short raised paths provided on the drum K
at the desired positions, which will then raise the discs A, A off the paper as soon
as they come under the rolls M, as will be readily understood.
The roll J may be positively driven by means of a cord or other pulley or gear
indicated at E (Fig. 3) from any suitable part of the machine, whilst the rolls C
and the discs A may either be positively driven by suitable means or they will
receive their motion from the drum K when they are in contact therewith and
otherwise from the roll J.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is;
1 In a printing cylinder the combination of suitable end standards, a colour
or ink trough mounted at the top thereof, a shaft having a series of discs A
thereon and mounted in the free ends of pivoted levers, so as to rest by gravity
on the printing drum, and an inking roll C mounted in swinging arms radiating
from the pivots of the said disc shaft and resting on the said discs and means for
imparting to the roll C ink from the trough D in the manner and for the purpose
substantially as described.
2: In a printing press the combination of a line disc shaft having discs thereon
and a colour distributing roll, said parts being mounted in swinging arms as
specified, a longitudinally moveable covering to the said inking roll, an ink
distributing roll J and means for positively rotating, the same, said roll being
mounted in proximity to the said roll C and having cam surfaces a, a at either
end, pivoted levers H, H to engage said cams with one end and operate the cover-
ing with the other end and means in connection with the printing cylinder for
periodically raising the disc shaft and the roll shaft B' to contact with the inking
roll J, substantially as described and shown.
3: In a printing press the combination of a disc shaft and an inking roll
mounted in swinging arms as specified the former resting by gravity on the
cylinder and the latter on the former, a colour holding trough and a colour
distributing roll mounted in proximity thereto, a longitudinally moveable coating
to the inking roll and means in connection with the said distributing roll to slide
said coating longitudinally back and forth along its shaft and grippers b, b located
on the press cylinder so as to raise the arms carrying the discs and the inking roll

page_text: against the distributing roll and means for positively driving the latter sub-
stantially as described and for the purpose specified.
4: In a printing press the combination of a disc shaft mounted in swinging
arms and resting on the cylinder, an ink or color distributing roll mounted also
in swinging arms and resting on the said discs, a color trough and standards E, E
to support the same and the inking roll and disc shafts as specified, and rolls M, M
keyed to the shaft of the discs to run on the ends of the cylinder and means on
the cylinder to periodically raising the same, substantially as described.
Dated this 3rd day of October 1898.
J. B. FLEURET,
6, Hatton Garden, Holborn Circus, London, E.C.,
Agent for the Applicant.