Improvements in Printing Machinery.
Year: 1889

page_text: Date of Application, 27th July, 1889
Complete Specification Left, 00th Apr., 1900 Accepted, 31st May 1900
PROVISIONAL SPECIFICATION.
Complete opecification Long Do
PROVISIONAL SPECIFICATION.
Improvements in Printing Machinery.
I WILHELM RICHARD SCHURMANN of Dusseldorf, Germany, Machine Maker, do
hereby declare the nature of this invention to be as follows ·
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This invention relates to improvements in printing machinery, whereby I ain
enabled, with simple mechanism, to print not only a sheet, but also a web of paper of
unlimited length, in one, two, or inore different colors, and on one or both sides of the
paper
In the machinery constructed according to my invention, the printing cylinder is
mounted parallel with the line of travel of the paper, and is rolled backwards and
forwards across the paper, which is intermittently advanced after oach impression.
The inking mechanism is similar to that commonly employed, and is mounted in
the same carriage as the cylinder, and travels to and fro with it. The ink of different
colors is supplied to the cylinder in circumferential stripes.
The paper web is carried on a roll at one end of the machine, and carried over an
impression table extending lengthwise of the cylinder, and across which the cylinder
rolis The paper is preferably unwound continuously from the roll, and take-up
mechanism, consisting of pivotted frames, is provided for keeping the strained
paper
during the printing, and between the intermittent advances or feeds, which are
effected by delivery rollers actuated by ratchet mechanism.
To print on both sides of the wob, tho paper is first introduced to the printing
cylinder through the impression table, about the middle of its length, and passed
backwards over the table, and led over suitable guide rollers and straining mechanisın.
It is then re-introduced through the divided impression table, and passed forward (or
in the opposite direction), thereby presenting its other side to the printing cylinder.
By regulating the advance or feed of the paper, a great variety in colored printing
may be produced, for, by having a short feed, the same part of the paper web may be
submitted to different parts of the printing cylinder, bearing differently colored inks,
and thus compound coloring may be produced; or the feed may be equal to that
portion of the web in contact with the printing surface, and in that case a simple
coloring, or coloring in plain bands only, is produced.
Deted this 96th day of Tuly 1880
NEWTON & SON,
Agents for the Applicant,
ww
COMPLETE SPECIFICATION.
Improvements in Printing Machinery.
I WILHELM RICHARD SCHURMANN of Dusseldorf, Germany, Machine Maker, 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 improvements in printing machinery, whereby I am
enabled, with simple mechanism, to print a web of paper or other material of unlimited
length in one, two, or more different colors, and on one or both sides of the
paper.
In the machinery constructed according to my invention, the printing cylinder is
mounted parallel with the line of travel of the paper, and is rolled backwards and
forwards across the paper, which is intermittently advanced after each impression
The inking mechanisin is similar to that commonly employed, and is mounted in
the same carriage as the cylinder, and travels to and fro with it. The ink, of different
colors, is supplied to the cylinder in circunferential stripes.

page_text: In the accompanying drawings, Fig 1 shews in side elevation, partly in section, the
machine arranged as a web-perfecting printing inachine. Fig. 2. is a plan view.
Fig 3 is a sectional end elevation, and Fig 4 a partial view of the delivery end of
the machine.
A A is the divided or slotted impression table carried by bracket standards cast
with or bolted to the top of the main fraining A¹.—-B is the printing cylinder, pro-
vided with suitably, arranged stereo plates or "formes," according to the description
of work-required to be done The shaft or journals of the cylinder B.are carried.in.
bearings in a frame B', supported by means of flanged wheels bb on guide rails A² A
bolted to the sides of the main framing A', the shafts of the running wheels being
carried in bearings at opposite sides of the frame B-C is the roll or web of paper,
the spindle of which turns in notched bearings in frames carried by the brackets A³ A³
bolted to the main framing The web C is led by means of guide rolls (in a manner
to be presently described) over one half of the impression table A, and then over the
remaining halt in the opposite direction, thereby presenting the two sides of the web
sunultaneously to the printing cylinder finally, the web is carried to the feed
rollers D D' and delivery rollers EE F is a shearing knife for severing the printed
web into shoots.
.
The frame B¹ carries the ink or color fountain or trough, the distributing
rollers b², and the duplicate set of inking rollers 6, all these rollers aro constructed
and mounted in the usual manner. G is the main shaft, mounted in bracket
bearings A' A, and furnished with fast and loose band pullies on its outer end-On
its inner ond this shaft carries a pinion gearing into an internal toothed flange pro-
jecting from a disc G¹ carried by a shaft G, which turns in bearings in the
brackets.
The disc G¹ carries a crank ping, on which fits one ond of a connecting rod Gº, its
opposite end being pivotted to the undersido of the frame B¹ The rotary motion of
this disc will therefore communicate a reciprocating motion to the frame B', carrying
the printing cylinder, together with the inking or coloring apparatus transversely of
the impression tablo A.-'bare toothed whools keyed on the journals of the printing
cylinder, and gearing into toothed racks bb, bolted to the guide rails A A² thus
communicating a positive rotary motion to the printing cylinder as it is carried to
and fro across the impression table A-Motion is communicated to pinions on the
ends of the distributing and inking rollers from the toothed whoel be on the shaft of
the printing cylinder-The fountain roller is operated intermittently from the
oxcentric pin on the side of the wheel be by the connecting rod bª, rock lever bº,
and ratchet or clutch gear fitted upon the shaft of the roller.
The roller c⭑
The web is led from the roll C between the bite of a pair of rollers c*, one of
which c is a driven roller, and turns in bearings in the bracket A³
being carried in a pair of swinging arms, a bite is obtained on the web automatically
from the inertia of the roll of web C, consequent on the lap of the paper over the
roll previous to its passage between the rolls -From these rollers the web com-
tinuously drawn from the roll c, passes into the "take up" apparatus, which consists
of two sets of roller c', the one set mounted in the fixed bracket A³, and the other
set carried by a rocking frame pivotted to the bracket A'. Over these rollers, tho
web passes in a serpentine course, the distance between these two sets of rollers
gradually increasing as they take up the continuous supply of web until it is inter-
mittently drawn from them in a manner afterwards described.
From this slack take up, the web is led to the underside of the impression table A,
and passes to the upper side over a roller «, nounted in the slot-or division of the
table shown in the drawing about the middle of its length Thence the web is drawn
in a backward direction, exposing one of its sides to receive an impression from
part of the cylinder B during its next traverse across the table A
The web, after receiving the first impression, is passed down over roller cat the
,end of the table, under the roller c, and is led around the roll or web C and take up
apparatus c, and at some convenient distance therefrom, by means of the series of
guide rollers c c' c', for the purpose of reversing its position.

page_text: The paper is again brought up to the underside of the impression table, and
passing over the roller to the upper side of the table, it is drawn forward towards
the delivery end of the machine, exposing the reversed side to the printing cylinder
From the table, the web passes by a guido roller to a slack take up roller c, carried
in swinging arms pivotted to the framing A¹ The weight of this roller will tend to
keep this portion of the web stretched, and ensure it lying flat on the impression
table From the take up roller c. the wob passes to the feed rollers D D'
The shaft of the roller D is unmounted in bearings in brackets A'A', bolted to the
inain framing, and the roller D¹ runs loosely in notched bearings formed on the
arms & pivotted to fixed standards This roller D' is pressed against the roller D by
the helical spring ', and may be adjusted to give the necessary bite on the web, to
move or draw it forwards, and pass it on to the delivery rollers E E Motion is
communicated intermittently to the feed rollers D D' in the following manner, for
the purpose of drawing forward the wob either the distance of the length of the
particular stereo "formes" carried upon the printing cylinder, or a part thereof,
according to the description of printing to be performed
H is a transverse shaft carried in boarings in the framing A', and receiving rotary
motion from a bevil wheel g' on the shaft G On the opposite end of this shaft,
outside the framing, a disc g is keyed, grooved diametrically, and fitted with an
adjustable stud g³ On this stud is fitted one end of the connecting rod D³, the other
end passing through a guide block swinging loosely on the shaft of the roller D.
It will be seen that any desired amount of throw may be given to the rod D³ by
shifting the position of the study in the grooved disc g, and consequently the
exact amount of forward draught of the web, according to the requirements of the
work in hand, will be ensured.
A band pulley on the shaft H cominunicatos a continuous motion by the band ¹
to the roller c, thereby drawing the paper from the roll C, the slack of the web thus
caused, is taken up by the "take up apparatus" c' ', from whence it is drawn
intermittently as required by the food rollers D DI
The web printed on both sides at every reciprocation of the frame B', will be
carried to the iced rollers D D1, and by thom carried forwards to the delivory
rollers E E, and issue out from the machine between the blades F F The rocking
blade F is securely attached to a spindle carried in bearings in the brackot A This
spindle receives an axial reciprocating motion through the lever arin f from the
cau on the shaft G³, and will, at each reciprocation, sever a sheet from the web
delivered by the rollers E E
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By regulating the advance or feed of the paper, a great variety in colored printing
may be produced, viz, by having a short feed, the same part of the paper web may
bo submitted to different parts of the printing cylinder provided with "formes
which are complements the one of the other, and served with differently colored
inks, in a manner that will be well understood Thus, compound colored printing
may be effected, or the feed may be equal to that portion of the web in contact with
the printing surface, and in that case a simple coloring, or coloring in plain bands
only, is produced
When printing on one side only of the web, it will be necessary to lead the web C
direct to the underside of the roller c³, and thence to the roller c² at one end of the
table, and over the roller at the opposite end of the table, and to adjust the draught
of the feed rollers D D', so as to make the travel of the web correspond to the
distance apart of the "formes" carried by the cylinder, when multi-colored printing
Is to be effected, or to the length of the cylinder itself, when using one color only
or simple bands of color.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
1. In a printing machine, the combination of a cylinder rolling to and fro across

page_text: printing "formes" arranged in series as complements the one of the other, and an
intermittent feed. mechanisin for advancing the web in the intervals between tho
printing, substantially as described and illustrated
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2. A printing machine provided with a divided table substantially as described and
illustrated, for the purpose of permitting the perfecting of the continuous web.
3. A printing machine provided with a take-up mechanism c¹, substantially as
described and illustrated, and for the purpose set forth.
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