Improvements in Printing Presses.
Year: 1890

page_text: Date of Application, 21st July, 1890
Complete Specification Left, 19th Apr., 1891-Accepted, 30th May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Printing Presses.
I, ADOLF LUCKNER, of 16 Sedanstrasse, of Weissensee near Berlin, in the
German Empire, Manufacturer, do hereby declare the nature of this invention to
be as follows:-
The improvements hereinafter described relate to the mode of impulsion, the
peculiar device for engaging and disengaging the printing cylinders and to the
manner of arranging the colouring cylinders.
The impulsion of the press is effected by two racks, set alternately one towards
the other, and a cog-wheel arranged between those two racks upon the principal
axle and displaceable upon it; the cog-wheel moving alternately either rack causing
the press thereby to execute a forward and backward motion.
Essentially for reversing the motion is the application of an eccentric catch-ring,
secured to the fly-wheel, and gripping at the end at every backward and forward
motion between rolls, and executing thereby the conveyance of the cog wheel from
one rack to the other, and thus the reversal of the motion.
The principal axle with the fly-wheel and eccentric catch-ring is set in rotation
by means of crank connecting rod and treading board; and the displaceable cog-
wheel which is compelled to rotate, too, moves one of the two racks and with it the
press, until the eccentric catching at the side of the fly-wheel enters the space
between rolls, which are secured to the so-called carriage. In consequence of the
eccentric movement of the catch-ring the carriage is drawn still farther, until the
inclined ends of the separate axle of the cog wheel push upon pins at the carriage,
and consequently displace the cog wheel a certain degree, sufficient to drive the cog
wheel from one rack to the other and thereby to reverse the motion of the
press.
The carriage and the ground-plate, the latter serving for receiving the types and
cuts, are firmly connected, and a cylinder for conveying the colour from the colour-
boxes to the types and cuts, is attached to every end of the ground-plate. Every
cylinder is at its one side provided with a cog wheel, running in a rack upon the
frame, and at the other side provided with a screw and screw box to cause not only
a forward and backward motion, but also a side motion. Iron side walls provided
with slits are firmly connected with the frame and a colouring cylinder and a metal
cylinder can be moved up and down in these slits. They are raised as soon as one
of the cylinders at the fore-sides of the ground-plate is drawn against them and in
being thus raised they receive colour. from the cylinders, which, after having passed
the small colouring cylinders, let them slide down upon the cuts and types upon the
ground-plate. The types and cuts receive colour at every forward and backward
motion of the ground-plate, which goes along between the iron side walls and carries
the cuts and types with it.
The engagement and disengagement of the printing cylinder is performed as
follows:
A wheel is fastened upon the same axle as the printing cylinder, and is kept in
place by a click, which is released as soon as a slide is pushed away by means of an
elevation upon the ground plate. The slide has an upper and lower part, and is
guided in slits; a vertical rod with a small wheel at its base is pressed upon the
upper part of the slide and is pressed down in the lower part under the influence of
a spring, when the slide is pushed away. The head of that red is in connection
with the above-mentioned click and releases the wheel and a spring, which forms a
connection between the printing cylinder and a cog-wheel, which rotates permanently.
The printing-cylinder begins to rotate and to carry the sheet to be printed over the

page_text: types and cuts. As soon as the slide is pushed back to its normal position at the
backward motion of the ground-plate the vertical rod is pressed upward again and
the wheel interrupts the connection between the printing-cylinder and the rotating
cog-wheel.
ADOLF LUCKNER.
By Geo. Thos. Hyde,
4, Moorfields, Fore Street, London, E.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Printing Presses.
I, ADOLF LUCKNER, of 16 Sedanstrasse, Weissensee near Berlin, in the German
Empire, Manufacturer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :--
This invention relates to a new driving-device of the printers' carriage, a peculiar
locking-system of the printing-cylinder and an improved arrangement of the ink-
distributing rollers for either one or more different colours.
I arrive at these ends by a double-rack and pinion, which latter is provided with
appropriate means for reversing the carriage, when run to the end. For locking
the printing-cylinder the same is provided with single- and double-levered clicks
operated by springs and a slide. The arrangement of the rollers will be readily
understood by a glance at the drawings accompanying this Specification, in which
similar letters denote similar parts throughout the different views, and in which;
Fig. 1 is an elevation of a complete printing-press provided with all the details of
this invention. The same is intended for printing with two inks of different colours.
The machine is supported by the frame 15, which bears all the parts thereof. In
the centre the main-driving shaft a is journaled on both sides, having a fly-wheel b
keyed on and is set to rotate by a treadle e, a connecting-rod d, and a crank e.
Between the two sides of the frame there is the carriage o. The type-block n is
securely attached to the carriage o, which can move to and fro on rollers a'. These
rollers run on the rails in connection with the frame 15. A pinion sits loosely
on the shaft a being however compelled to revolve with the same by a feather and
groove and gears into either of the racks g and I forming part of the carriage o.
The pinion, having drawn the carriage to one end, leaves the rack and an eccentric
ring h, being connected to the fly-wheel (Fig. 5) catches in between two pins i i¹,
thus drawing the carriage still a little further and then the same distance back
again. In the meanwhile the pinion, being able to slide up the shaft, is drawn to
the side by the worm-shaped face of its boss, knocking against two pins k k¹ (Fig. 6).
The pinion, having formerly driven the carriage by the lower rack, will now be in
line with the upper one, which it catches hold of, as soon as the eccentric ring has
finished its course between the pins . Thus the motion of the type-block n is
reversed. The printing-cylinder p rolls over the type-block twice, the paper being
printed each time with the different coloured print. I may replace the eccentric
ring and the corresponding pins ii, by similar curved grooves in the body of the
carriage and attaching corresponding pins or nozzles to the fly-wheel or its boss,
whereby the same effect is attained. may also apply means for accelerating the
return motion by especial gearing not shown in the drawing.
The ink- or colour-boxes are bolted upon the frame, one at each end and pay off
ink by means of a cylinder 5 in the manner hereinafter more fully explained. The
ink-conveying-cylinders t t are journaled on the framing of the carriage one at each
end in the following way:
The spur-wheel or pinion " (Fig. 7) is keyed upon the shaft of the cylinder and
gears into the teeth of a rack attached to the main-frame 15, thereby causing the

page_text: cylinder t to revolve, while the carriage moves on. The shaft t is at the other end
provided with a slow-thread to corresponding with a nut, sliding also on the
frame 15. Thereby a motion in the direction of its shaft also is imparted to the
cylinder, while the carriage moves to and fro. Now on moving on the cylinder,
t comes in contact with the ink-roll 3, forces it to slide up its guiding slit 2 cast into
the frames 1 and takes off some colour or ink as the two reel against each other.
The nozzle 6 being attached to the type-block knocks against the click 7 of a
double lever 8. The other end of this lever has a pawl 9 operating upon a
ratchet 10 keyed upon the axle of the ink-paying-off-cylinder 5. To secure the
catching of the next following tooth the pawl 9 is elastically held against the
ratchet by a spring. This device comes into action, when the carriage reverses its
motion, the nozzle or hook 6 catches hold of the click 7 and effects a slight turning
of the cylinder 5, by the lever 8 and pawl 9, thereby licking up some colouring-ink
out of the ink-box z. After each operation the lever 8 and with it the pawl 9 is
drawn into its former position by the spiral-spring 11. From the cylinder 5 the
ink is transferred to the cylinder t by the intermittent rolls 3 and 4 operated upon
in the manner heretofore described, of which 4 is merely intended to better
distribute and rub up the ink. While the cylinder revolves and at the same time
moves in the direction of its axis up and down, the colouring ink adhering thereto
is still further rubbed up and distributed by a roll, laying against it on top and
being journaled on the ends of the type-box n. On each side of the printing-
cylinder there is a row of rolls 16 arranged to slide in the slits 14, cast into the
side-frames 12 and 13. As the cylinder t moves on, it comes in contact with the
rolls 16 and forces them to slide up or down in their guiding-slits 14. These latter
reeling against the cylinder t lick off the ink therefrom and hereafter give it off*
again to the types, while running over the same as the type-box 22 moves on. The
metal-rolls 17 reeling on top of the rolls 16 distribute the ink thereon. Both sides
of the machine operate in the same manner, however each side works with different
coloured ink, thus enabling the same paper to be printed in two colours. The rolls
are on their ends provided with collars 47 or necks 48 (Fig. 8) which run on
rails 49, whereby the rolls are raised up from off the types, wherever they pass
types that are not to receive such colouring as is conveyed by the respective roll.
Other rolls being provided with similar collars and necks, not in the same line with
the first and also having to run over corresponding rails in a different line to the
first, will be raised from off the types, which have received the ink from the first
rolls. The locking-device of the printing-cylinder is drawn out in detail in Fig. 9.
A slide 21 is guided by the slots 22 and pins 25 and is actuated by a nozzle attached
to the type-block n. When thus pushed on in direction indicated by the arrow the
slide allows the small wheel 24 to run down its slope. The rod 23 then gives way
to the tension of the spiral-spring 26 and releases the double-levered click 20 out of
a notch or tooth of the disk 19. The disk 19, Fig. 11, is coupled to the printing
cylinder and being released from the catch of the click 20, is at liberty to revolve
along with the spur-wheel 28, running at other times loose, but now seizes the
cylinder by aid of a spring 27. A second notch being attached to the type-box,
forces the slide to move in the direction opposite to the first. By the slope of the
same the wheel 24, and along with it the rod 23, moves upward again, thus pressing
the click 20 downward against the face of the disc 19 and into the corresponding
notch, thereby locking the disc 19 and with it the cylinder p in the position of the
Figure 9. Another click 50 prevents an unintentional rotation of the cylinder in
the other direction.
P
In Figs. 12-15 devices are illustrated to lead the paper through the machine.
From off the table m (Fig. 1) cach sheet is brought down the slope by hand close
to the cylinder p. Here it is caught up by tongues 29 (Fig. 14), which, being
closed against the cylinder, lead off the sheet, as the cylinder rotates, and the sheet
is printed, while the type-box moves on, pressing against the cylinder p. When
the printing is done, the sheet is led off by the upper-cylinder 30, being provided
with similar tongues as p (Figs. 12 & 13), and from here unto the belts 38, which

page_text: convey the same to the arms 37. These arms are combined with the cog-wheel
or pinion 35, which is actuated by a sector-shaped rack 34, being attached to
the upper end of the double-lever 32. The lower end of the double-lever 32 is
provided with a click 33. The nozzle 6 sitting on the type-box, collides with the
click 33, as the carriage o moves on in this direction. By the lever 32 and rack
and pinion 34, 35 the arm 37 is thrown over the sheet unto the table 31, where the
printed sheets thus may be gathered up. By the tension of a spiral-spring attached
to the rack 34 and the frame 1, the arms 37 will return into their former position,
as soon as the pressure against the click 33 is withdrawn.
Fig. 2 illustrates the application of rectangular boards 39 & 40 and
Fig. 3 that of circular discs 41 & 42 which may be set to rotate by suitable
gearing in order to properly distribute the ink on the rolls.
Fig. 4 illustrates a printing-machine for printing with four colours. The figure
only shows one half of the machine, the other half being identical therewith.
According to the number of different colours there are four ink-boxes 45 attached
to main-frame 15 and four ink-conveying cylinders 44 in connection with the
carriage o or type-box n. These cylinders 44 convey the different-coloured inks to
the rolls 46, of which there are also four rows, each row receiving its colour and
giving it off to the types according to their collars and necks 47 & 48 running on
the respective rails 49 as heretofore described.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :--
1st. In an improved printing machine the construction and use of the entire
apparatus, combined and operating as herein set forth and for the purposes
specified, substantially as described and shewn by the drawings.
2nd. In a printing-machine; the driving-device consisting of a double-rack (g and l),
a pinion (f), sitting loosely on the driving-shaft and being compelled to revolve
with it by a feather and groove, and being forced to move to a side by the worm-
shaped faces of its boss, knocking against pins (k), thereby leading the pinion
from one rack to the other, in combination with an eccentric groove or ring gearing
with corresponding pins for the purpose of reversing the course of the carriage (o),
while the pinion (f) changes the racks, as described.
3rd. In a printing-machine: the locking-device of the printing cylinder consisting
of the double-levered click (20), the rod (23) and the gliding-wheel (24) in com-
bination with the slide (21) and the spiral-spring (26), as for the purpose set
forth.
4th. In a printing-machine for printing with one or more different coloured inks,
the ink-conveying-cylinders (t) being journaled at the ends of the type-box for the
purpose of conveying the ink from the ink-box to the rolls (16), while forcing the
same to slide upward in their guiding-slits 14 as described.
5th. In a printing-machine for printing with one or more different coloured inks:
the ink-conveying discs being either firmly attached to the ends of the type-box or
loosely and provided with gearing to set the same to revolve for the purpose of
better distributing and conveying the ink from the ink-box to the rolls (16), while
forcing the same to slide upward in their guiding-slits, as described.
Dated this 17th day of April 1891.
Dated GIS Ɑay of April 1091.
ADOLF LUCKNER.
By Geo. Thos. Hyde,
4, Moorfields, London, E.C., Agent for the Applicant.