IMPROVEMENTS IN STEAM PRESSES
Year: 1881

page_text: A
LETTERS PATENT to Leopold Maximilian Schmiers, of Leipzig, in the Kingdom
of Saxony, for an Invention of "IMPROVEMENTS IN STEAM PRESSES."
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." A communication from the Firm of Schmiers,
Werner, and Stein, of Leipzig, in the Kingdom of Saxony.
The machine is intended to print a sheet on both its sides at the same time by
passing it once through it. It is furnished with cylinders that come to a stand-
still at certain intervals, so as to permit the sheets that are to be printed to be
carefully inserted. For this reason this machine can be used for ordinary printing
as well as for printing in several colours.
The construction of this machine is shown by the diagram drawings, Sheet I,
Fig. 1. Two cylinders A and A₁ with their printing surfaces a and a1, and the
surfaces for the distribution of colours b and 6 that lie a little below, are moved
against each other by the wheels B and B, C and C, D and D1, so as to bring the
printing surfaces a and a¹ conjointly into action. The forks c and c), which are put
in motion by the excentrics d and d, then alternately bring the cylinders A and A'
to a stand still, and afterwards into operation again, as more explicitly shown in
Fig. 2 to 6, Sheet I.
As the drawings show, the wheels are furnished with teeth partly on the right
and partly on the left side. Those teeth which are missing on the one side of the
wheel are provided on the other side of it, as can be seen by Figs. 2 and 3. As
soon now as wheel B (Fig. 6), that is attached to the cylinder barrel, comes to the
toothless part C the respective cylinder is arrested by fork c or c¹. Wheel D (or
D¹) is as broad as wheels C & C₁, whereby wheels Ċ and C¹ (Fig. 1) are moved
without interruption. When the toothless part has run its way, cylinder A or A'
is put in motion respectively by fork c or c), whereby wheels C and B, or C¹ and
[Price 8d.1

page_text: B¹ are brought again into operation in order to bring the cylindric printing
surfaces a and a¹ again into action. The different positions of the wheels,
excentrics, and forks, are represented on Sheet II., Figs. 12 to 15. Fig. 12 shows
the press in the first stage of its proceedings. Cylinder A¹ has been inactive, and
has received printing paper. Cylinder A finished meanwhile its second rotation,
both cylinders move on together, and the printing surfaces a and a¹ come into
action (Fig. 13).
In Fig. 14 cylinder A is arrested, and A' finishes its second rotation.
In Fig. 15 cylinder A¹ rests inactive and receives new printing-paper, during
which time cylinder A finishes its second rotation, whereupon the press is in the
same position again as shown in Fig. 12. Fig. I., Sheet I. shows moreover the
further arrangements of the machine. The paper that is to be printed is brought
on the receiving-table E, where it is seized by the catchers e, then both the
cylinders move against each other, the printing surfaces a and a¹ print the sheet
on both its sides at the same time, and deliver it to the receiving cylinder K, from
whence it is led by the ribbons g to the receiver h, which delivers it to the
depositing table F. On both sides of the cylinders A and A above the machine
are two easily accessible colouring apparatus G and G with their distributing
rollers and, the receiving rollera k and ki, and the colour boxes i and . T and
and T are the waterworks, of which each contains four wetting rollers and one
water-box.
H is the swinging wheel of the machine. The receiving cylinder K is detailed
in Fig. 11 to show the action more explicitly. As soon as a sheet is printed it is
seized by the catchers f, the catchers e let it go, and as both cylinders move with
the same velocity the sheet is drawn away in this manner from cylinder A¹.
The advantages of this Invention are that by very simple mechanisms this
machine can execute the most complicated work. It can be made so as to print
sheets of the greatest size, without taking up a large space. Every colouring plate
is doubly blackened and doubly moistened, and the standing still of the cylinders
permits exact insertion of the printing sheets, which allows very well for printing
with colours. In order to adapt these rotary double-printing presses for the
manufacturing of finer printing-work, they can be so arranged that the printing-tables
can be rolled four times instead of two.
This Invention is also of a very simple nature, and is represented, Sheet II.,
Fig. 16 to 19, and Sheet 3, Figs. 7 to 10.
In such machines only the excentrics d and d¹ are changed in their form
corresponding to the necessary motion, and the wheels C and C¹. These stand to
the cylinder wheels B and B in the proportion of 1 to 35, while machines made
for a double rolling receive wheels B, C and B, C¹ in the proportion of 1 to 3.
The proportion of the wheels is therefore four times repeated, rolling of the printing
plates by 0, 5 larger than in the first arrangement, whereby it becomes possible to
alter cylinder A to correspond to A1, so that the printing surfaces a and a¹ do not
come into action at the third rotation, as in Fig. 13, but the position shown in Fig. 18
takes place, in which printing surface a and table surface 61 stands opposite to each
other. Thus no pressure follows, but cylinders A and A¹ move on, retaining their
altered position, and complete their third and fourth revolution. In this manner a
very good moistening of the printing plates, a very fine grinding of the colours,
and an excellent putting on of the same is obtained. The motion of the machine
for a several times repeated rolling in is the following:-
Fig. 16, Leaf II., shows the position of beginning. Both cylinders A and A¹
Inove against each other, the printing surface a and a¹ come into action, as shown by
Fig. 13, the cylinders A and Â¹ complete each a second rotation, as shown in Figs. 14
& 15. In Fig. 17 A¹ is arrested, cylinder A alters its rotation by 0, 5, wheel
B has come into action, so that at the third rotation of the cylinder printing and
colour grinding surface a and b' (Fig. 18) stand opposite to each other. After this
follows, in the altered cylinder position, the completion of the third and fourth
rotation of A and A₁, after which cylinder A takes its former position again, so

page_text: that at the fifth rotation a and a³ come again into action. In order to detail the
manner of this arrangement still more explicitly, Figures 7 to 10, Sheet 3,
are added.
Fig, 10 shows again wheels C1, C2, which are furnished with teeth partly on
the right and partly on the left side; the cylinder wheel B, and spring wheel D,
as explained in the description of the first arrangement. The wheel space C 3, and
wheel B, which can be either put in or taken out, are added. If the cylinder A is
to change its position, wheel B¹ is to be inserted at 0, Fig. 9. The teeth 1 then
alter cylinder A, and after the fourth rotation is completed the indented piece 2
brings the cylinder back to its former position. Wheel Bull is selfactive, taken
in or out by m (Sheet 2, Fig. 19). At the change of the cylinders the excentric
bar P is by this arrangement unshipped by n, and fork c is kept by bar o in its
position, till cylinder A has returned into its former position.
Sheet 3, Fig. 20, shows the machine in its complete construction. The cylinder-
cushions can be easily removed and adjusted, and are elastically pressed against
each other by the springs L. Fig. 22, Sheet 3, shows the side view of this machine.
The same letters in all the figures refer to like parts.
CLAIMS.
1.) A rotary steam-press for printing sheets on both sides at the same time,
furnished with two changeable cylinders A and A₁, and which are provided with
printing surfaces a, a, and surfaces for the distribution of colours b, 61, and which
can be pressed elastically against each other by the pressure of springs L, and can
alternately be brought to a standstill by forks c and c and excentrics d and di,
whereby a careful insertion of the printing paper, and a double rolling in of the
printing plates a and a' is made possible.
2.) The arrangement of the wheels C and C) indented alternately on the right
and on the left side, which in connection with the forks c and c, and the excentrics
d and d¹, cause the alternate standing still of cylinders A and A¹.
3.) The four times repeated rolling in of the printing plates produced by wheels
B, C, B¹, C, constructed in the proportion of 1 to 3, 5, and the wheel piece C3
(Fig. 9, Sheet I), permitting the shipping and unshipping of wheel B¹¹ (Fig. 10),
so as to alter the position of cylinder A, and to bring it back to its former situation.
All substantially as above described, illustrated, and set forth.
In witness whereof, I, the said Leopold Maximilian Schmiers, have hereunto
set my hand and seal, this 19th day of October, A.D. 1881.
LEOPOLD MAXIMILIAN SCHMIERS. (L.S.)