IMPROVEMENTS IN STEAM-PRESSES FOR COLOURED PRINTING
Year: 1881

page_text: LETTERS PATENT to Leopold Maximilian Schmiers, of Leipzig, in the Kingdom
"
of Saxony, for an Invention of IMPROVEMENTS IN STEAM-PRESSES FOR
COLOURED PRINTING." A communication from the Firm of Schmiers, Werner,
and Stein, of Leipzig, in the Kingdom of Saxony.
COMPLETE SPECIFICATION filed by the said Leopold Maximilian Schmiers
at the Office of the Commissioners of Patents on the 21st October 1881.
LEOPOLD MAXIMILIAN SCHMIERS, of Leipzig, in the Kingdom of Saxony.
"IMPROVEMENTS IN STEAM-PRESSES FOR COLOURED PRINTING." A communi-
cation from the Firm of Schmiers, Werner, and Stein, of Leipzig, in the Kingdom
of Saxony.
These machines work rapidly and register well, making them very fit for news-
papers and other purposes where rapid and reliable working is required.
As may be seen from the accompanying Drawings, Sheet 1, Figs. 1 to 5, the
principle of this Invention consists in the paper to be printed being rolled upon an
excentric cylinder B, and the printing plates forming the straight sides of a
polygon A. The paper to be printed is adjusted on the cylinder B, and firmly held
by means of tongs f. The printing plates are screwed on the straight faces a¹,
a², as, &c.; both paper and plate being firmly held; the print is very exact and
reliable. The machine is moved as follows:-
The plate-cylinder A revolves twice for each print, bringing the plates twice in
contact with the colour-rollers i, i, &c., Sheet 1, Fig. 4; the print cylinder B
however revolves only once, and stops during the second revolution of the
cylinder A for giving time to put fresh paper on.
Sheet 1, Figs. 1, 2, & 3, represent the various motive parts in their positions.
The wheel C and plate cylinder A are firmly secured on the beam 1, and gear
into the driving wheel 611 which is secured on the beam 3. The wheel 6 gears

page_text: into the wheel 61, and 61 moves the cylinder B against the cylinder A by gearing
into d. The tooth-bars a', a³, a³, &c., and the cylinder wheel c gear alternately
into one another, and after these the wheels d, b1, b¹¹¹, and c, gear into one another
in order to bring the paper in contact with the next printing plate of cylinder A.
Fig. 3, Sheet 1, shows the plate-cylinder A in such a position that the tooth-
bar as and wheel c gear into each other.
The wheel d, which is secured on the beam 2, is only toothed on the half of its
circumference, for the purpose of being out of gear with 61 as soon as the tooth-
bars a, a, a³, &c., gear into the cylinder wheel c. For stopping the cylinder B
and moving it again there is the following device :-
Two excentrics G, G¹, two excentric rods P and L, a stopping fork r, and the
untoothed space o on the circumference of the tooth wheel b¹.
Fig. 1, Sheet 1, represents the cylinder B at rest for receiving fresh paper. The
wheel d is firmly secured to the beam 2 and gears into the intermediate wheel b²,
which is provided with a bolt v. The fork seizes this bolt or pin v and holds it,
thus keeping the wheels b¹ and d and cylinder B at rest until the plate-cylinder A
(moved by the driving wheel 6111 and wheel C) has accomplished its second
revolution. The driving wheel 6111 and intermediate wheel 61 are thrown out of
gear owing to the gap o on the wheel b¹, and thus 6, C, A, can move on
while B, d, b¹, are at rest. If the plate-cylinder A has accomplished its second
revolution the excentrics G, G', move the fork r, imparting at the same time motion
to the wheel b¹ and causing it to gear into the wheel 6. The cylinders A and B
are moved against one another in such a manner that x and x, respectively,
d and c gear into each other, and thus five different colours can be printed on the
sheet on the cylinder B.
Figure 6, Sheet 1, represents the connection between the beams 1 and 4 by
means of four tooth wheels Q, R, S, T. The beam 4 revolves with only the half of
the speed of the beam 1.
This beam 4 serves to move the excentrics G, G', it lowers and raises the table D,
opens and shuts the tongs f, and moves the point-spurs u and the lifter E (Fig. 7,
Sheet 2).
In Fig. 1, Sheet 1, are shown the screws n, n', provided with hand-wheels which
allow of raising and lowering the printing plates a¹ a², a³, &c., and also connect the
cylinder A with the plates a¹, a², a³, &c. (see the side view, Fig. 10, Sheet 4).
Fig. 2, Sheet 1, represents the wheels and excentrics in another position, the
cylinder-wheel c and tooth bar a¹ being out of gear, while the wheels ₫ and b¹ gear
into each other.
The cylinder B is being moved by the wheels C, 6¹¹¹, b'd, as far as to gear into
the next tooth-bar a²; the bolt or pin has left the fork r, and the untoothed
part o of the wheel 6' and the toothless part of wheel d have thrown these two
wheels out of gear.
Fig. 3, Sheet 1, shows that stage of the movements when the beam 1 has made
half a revolution, and beam 4 a whole revolution.
As may be seen, the fork r is out of action and kept aloof by the excentrics G, G¹,
in order that the pin v may be able of passing without being caught by the fork r.
The wheel b' is moved on in this stage by the wheel t, which is secured on beam 4
and is provided with a few teeth which gear into p and move the beam 5 of
wheel 5 until the wheels 61 and 6¹ come to gear again. After this the fork ris
moved to the opposite side that the pin v may be caught by the fork r and the
cylinder B brought to rest again, as shown in Fig. 1.
Fig. 8, Sheet 3, represents a view from above of the motive parts (wheels c, 6111,
b¹, d, p, t, the excentrics G, G¹, with excentric bars P, L, and fork r).
Fig. 9, Sheet 4, represents these same parts in front view.
Fig. 5, Sheet 1, shows the geometrical mode of constructing the cylinders A
and B.
The circle A is intersected by the line a, the line a divided into equal parts, and

page_text: these parts transferred upon the circle B, the line a being therefore equal to the
sector c.
A line e, h, is now drawn to connect the two centres 1 and 6 halving the line a.
This proceeding gives the point x from which a line x, y, is drawn to y. The
line x, y, is now halved, and a line w, z, drawn at right angles thro' the halving
point. Where the line w, z, intersects the middle line e, h, (at 2) there is the
excentric turning point of the cylinder B.
The intermediate wheel-gearings c, b, b¹, d, which connect the beams 1 and 2
and move the cylinder B from one printing face to the other, are constructed in
the angle proportion .
Fig. 7, Sheet 2, is a side view of the machine. The paper to be printed spread
on the table D is seized by the tongs f of the cylinder B, and introduced into the
machine. In the case of the machine being intended for printing more colours
than for which it is adapted, arrangements are made for passing the sheets again
through the machine (said arrangements consisting in point-spurs or such like) F, i ;
by passing a sheet twice through a machine adapted for 5 colours it can be
printed with ten colours.
Belts or straps g are fitted for leading the printed sheets to the lifter E, which
deposits the sheets on a table F.
As may be seen from Sheet 2, Fig. 7, the colour feeding devices are placed at the
top of the machine, and are very easily accessible. Cylinders are fitted for grinding
the colours and transmitting them on the cylinders i, which are in direct contact
with the printing plates a¹, a², &c.
The rollers can be made to revolve 60 times during each print.
The intermediate cylinders k may be thrown out of gear, or made to work as
required.
The colour receptacles m at the top may be worked by means of chains 7 and
wheels m, and each box or receptacle can be stopped or made to work again by
means of a pawl or other mechanism.
The colour rollers are moved by the chain q from the shaft 3; the whole of the
colour feeding devices can be thrown out of gear and into gear.
Sheet 3, Fig. 8, is an upper view of the machine. A is the plate-drum or
cylinder; a, a, a, are the base-plates, a printing plate being secured on a¹; B is
the printing cylinder; D, table for the paper to be introduced and printed;
F, table for depositing the printed sheets; g, the straps or belts, which take the
printed paper to the lifter E; G, G', excentrics; P, L, excentric rods; r, fork;
C, d, b¹, wheel gearing for moving the cylinder; Q, R, S, T, the gearing between
the beams 1 and 4; I, I, are discs on which the rollers i will run; q, chain-driving
for the colouring devices; H and work the colour-receptacles m; K is the
excentric for the tongs f.
Sheet 4, Fig. 9, is a front view of the machine.
Tika letters refer to like obiects throughout the accompanying Drawings
First. The rotary quick press with straight printing faces on a cylinder A moved
against an excentric cylinder B by means of the wheels C, 61, 61, d, and c, and
the tooth bars a, the paper to be printed being successively brought in contact
with a, a, a, &c.
Second. The cylinder B with its stopping device consisting of the toothless part o
on the circumference of the wheel 61 in connection with the wheels p and t,
excentrics G, G¹, rods P, L, and fork r.
Third. The shaft 4 which is moved from the shaft 1 by means of wheel gearing
with a speed of 1:0.5 and admits of the excentrics G, G₁, working exactly, and at

page_text: the same time serving to move the tongs f, point-spurs u, table D, &c., by means
of excentrics adapted on the same, all substantially as described and illustrated and
for the purposes set forth.
In witness whereof, I, the said Leopold Maximilian Schmiers, have hereunto
set my hand and seal, this Nineteenth day of October, A.D. 1881.
LEOPOLD MAXIMILIAN SCHMIERS. (L.S.)