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Патент USA US3052194

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Sept 4, 1962
Filed Aug. 13, 1959
3 Sheets-Sheet 1
Sept. 4, 1962
3 Sheets-Sheet 2
Filed Aug. 13, 1959
Sept. 4, 1962
p_ zERNov ET AL
Filed Aug. 13, 1959
3 Sheets-Sheet 5
United States Patent O??ce
Patented Sept. 4, 1962
taglio type, it may ?nd utility elsewhere; as indicated
above, it is not intended to limit the scope of the invention
to ink applying mechanisms.
Peter Zernov and Robert R. Traupmann, Milwaukee, Wis.,
assignors, by mesne assignments, to Miehle-Goss
Referring in greater detail to the drawings, a conven
tional rotogravure cylinder 110 is mounted on a shaft '11
which is j'ournalled in bearings ‘12 in the side frames 13
of a press. A conventional impression roll 14 cooperates
with the cylinder to print in the known manner.
Filed Aug. 13, 1959, Ser. No. 833,610
3 Claims. (Cl. 101-457)
The high speed printing cylinder is enclosed in a sheet
This invention relates to high speed rotary printing
metal fountain 16 which includes the inclined bottom 17,
presses, laminators or the like, and more particularly to
front wall 18 including the transversely extending rein
means for applying ink or adhesive to the printing or ad
forcing channel 18a and the spaced blocks 18b welded
hesive applying cylinders.
thereto, wall 19 and side walls 20 and 21. Each of the
In intaglio presses, a highly volatile and quick drying 15 side walls have an open slot 22 through which the cylin
ink is employed and it is desirable to use the minimum
der shaft .11 extends. The fountain has a ?xed cover 23
amount of ink in the system which is consistent with
and a removable cover 24.
adequate coverage or submersion of the cylinder in the
A return conduit 25 places the lowest point of the
ink. Similarly, in laminators, the adhesive is of a very
fountain in ink delivering communication with a pump or
quick drying type and ‘readily dries when exposed suffi
other mechanism (not shown) for recirculation of the
ciently to air. In other words, because of the evapora
ink to the stationary applicator tube 26. The tube is
tive action of the ink or quick drying of the adhesive, it is
secured only at one end in the wall 13 (FIGURE 2) and
desirable to expose only a minimum of the vehicle sur
extends otherwise unsupported therefrom.
The fountain is shiftable by linkage L (FIGURE 4)
In mechanisms of the general type to which this in 25 between the lower non-operative position shown in that
vention pertains, a continuous or circulating flow of the
?gure, to the raised operative position of FIGURES 1
liquid past the cylinder is utilized and it is also necessary
and 2. When the fountain is moved upwardly, the semi
to provide adequate liquid pressure or impactive action
circular bearing 2% carried on the tube 26 is sealingly
against the rotating cylinder 'in order to wash and/ or ?ll
engaged by the side wall 20 of the fountain.
the minute cells in the cylinder surface.
Blade Assembly
Furthermore, the cylinder must be interchangeable with
Any conventional doctor blade assembly 27 (shown by
others of di?erent diameter and heretofore it has been
broken lines in FIGURE 1) may be utilized with the pres
necessary to sacri?ce some of the above desirable charac
Dexter, Incorporated, Chicago, 11]., a corporation of
teristics in order to avoid numerous adjustments and
ent invention, and this assembly is mounted on the side
to the cylinder.
in diameter and the maximum size of a cylinder usable
with the press shown may be as large as that indicated by
the dotted line 28. Therefore, the use of a considerable
changing of parts, for example, such as changing the 35 walls of the machine and the position of the blade B is
easily adjustable to accommodate various diameter cylin
size of the liquid trough or manifold in which the cylinder
rotates. Stated otherwise, for the sake of ready adjusta
bility, a compromise has heretofore been tolerated in the
most e?icient positioning and shape of the trough relative
The cylinder 10 shown in FIGURE 1 is relatively small
Accordingly, the present invention provides an im
proved liquid trough which insures all of the above desir
able characteristics of liquid feed regardless of cylinder
diameter, and which trough is readily adjustable to accu 45
rately and e?iciently accommodate different diameter
More particularly, the present invention contemplates
a ?exible curtain which forms the liquid pan or trough,
which curtain can be easily adjusted to various diameter
cylinders, and can be easily removed and cleaned.
Other objects and advantages of the present invention
will appear hereinafter as this disclosure progresses, ref
erence being had to the accompanying drawings, in which:
FIGURE 1 is an end elevational view, in section of a
range of cylinder diameters is contemplated with this
‘In accordance with the present invention, a ?exible
curtain 30 extends across the fountain and beneath the
cylinder 10 and is clamped at its rear edge to the tubular
member 31 by the bar 32. The member 31 is releasably
held at each end in a bracket 33 secured to the side Walls
of the fountain. The front edge of the curtain is se
cured to a roller 36, in the form of a tubular member
which is square in cross section.
printing press embodying the present invention certain 55
The flexible curtain 30 is folded upwardly along each
of its longitudinal sides to form side walls 30w. A suit
parts being broken away or removed for clarity, the view
able number of pleats 30p in the side walls, which may
being taken generally from line 1—1 in FIGURE 2;
be held together by clips 30c, or the like, allow the latter
FIGURE 2 is a fragmentary plan view taken generally
to extend or contract in accordance with the cylinder size
along line 2-2 in FIGURE 1;
60 being used.
FIGURE 3 is a fragmentary front view taken on line
3-3 of FIGURE 1;
FIGURE 4 is a perspective view taken generally from
the front, lower side of the press and showing the foun
The curtain must be made from a material which is
stable in the ink solvent and one which is not attacked
Furthermore, the curtain cannot have any
stretch characteristics and must not have an a?inity for .
tain in the lowered non-operative position, with parts of 65 glue or ink to adhere thereto. A particular material which
the machine removed or broken away;
has proved to be desirable for providing these character
FIGURE 5 is an enlarged, perspective view of a front
istics for the curtain is Fiberglas impregnated with Te?on.
The Fiberglas is stretchproof while the Te?on is inert to
corner of the fountain, and
FIGURE 6 is a perspective view of one end of a modi
solvents and has no af?nity for glue or other liquids.
?ed form of curtain without sidewalls.
Curtain Roller
While the invention will be shown and described par—
The curtain is wound around the square roller 36 and
ticularly in connection with a printing press of the in
thus the length of the curtain between the roller ‘36 and the
rear member 31 is variable in increments by winding the
curtain on or from the roller 36. The amount of curtain
wrapped around a su?'icient length of the cylinder circum
ference to insure sufficient liquid pressure thereagainst.
At the discharge side of the cylinder the liquid may build
wind-11p provides a coarse adjustment for accommodating
up to a considerable depth as indicated at D‘, and an ex
various diameter cylinders and is quickly made by remov 5 cessive amount of liquid is pumped to maintain a high
ing the roller 36 from its vertically adjustable support
well as the discharge side of the cylinder. By means of
frame 40 as will appear.
the curtain sidewalls 30w, the amount of excessive liquid,
‘Support Frame and Blade H0using——C0arse Adjustment
The support frame ‘40 includes a transverse bar 45 hav
which is necessary to maintain this Well depth, is held to a
In other words, the side walls prevent im
run off of the liquid at each side of the curtain
ing a pair of vertically disposed and apertured members 10 mediate
a pocket for the liquid. In the case of ink, for
46 welded thereto in alignment with their respective blocks
18b. Thumb screws 47 extend through any selected one
of a plurality of apertures 48 and are threadably engaged
example, by holding the amount of ink down to a mini
mum, excessive solvent loss is eliminated.
Other means for forming the sidewalls may be em
in the blocks to hold the support frame in any one of a
ployed, but the integrally formed walls 30w permit
plurality of vertical positions. In this manner a coarse 15
thorough and easy cleaning of the curtain when removed.
When used with liquids of certain types or viscosity,
adjustment of curtain position in the fountain may be
readily made.
the extensible side walls 30w may not be necessary, and
this modi?cation is shown in FIGURE 6.
A housing H for the blade assembly is carried by the
support frame and includes end cups 50 and 51 which
present liquid applying mechanism provides sim
have upwardly facing openings 52 through which the 20 pleThe
and easy regulation of immersion depth of the cylin~
doctor blade shaft 53 is adapted to extend so that the
der, a minimum volume pan for any size cylinder, good
impactive action of a “sheet” of liquid against the cylin
cups are positionable closely adjacent the doctor blade
mechanism, and substantially enclose the blade assembly
der, a continually circulating supply of the liquid having
within the fountain.
These sheet metal end cups are
a minimum exposed area, and all regardless of cylinder
secured together by the housing wall 54 which slides up 25 diameter.
and down along the inside of the front wall 18 of the
fountain. The wall ‘34 terminates at its upper edge in an
templated as ‘being within the scope of the following
inwardly turned ?ange 55 on which the curtain can hear
claims particularly pointing out and-distinctly claiming
when accommodating larger cylinders. The ?ange 55
together with a lower ?ange 56, act to rigidify the hous 30 the subject matter which is regarded as the invention.
What is claimed and desired to be secured by Letters
ing H. This housing H also includes lower side portions
Patent is:
57 which vertically slide along the inside of the fountain
1. In a machine having interchangeable rotary cylin
side walls. The housing H and its support frame are thus
ders for applying a liquid to a surface passing thereover
vertically adjustable together as a unit and this vertical
adjustment of the front end of the curtain together with 35 and also having a fountain in which one of said cylinders
is rotatable at a time, said cylinder having a liquid entry
the housing, in accordance with the vertical adjustment
side and a discharge side, a support frame shiftably
of the doctor blade for various diameter cylinders, insures
mounted on said fountain adjacent said cylinder discharge
a closed fountain at all times.
side, a curtain roller rotatably adjustable on said support
Fine Adjustment of Curtain
40 frame, a ?exible curtain extending beneath said cylinder
and closely following the contour of a portion of the
The curtain roller 36 is releasably mounted on the sup
circumference of said cylinder so as to maintain liquid
port frame 40, and the roller together with blade assembly
pressure thereagainst, said portion being less than 90
housing H are vertically adjustable relative to the rest of
degrees, said curtain at said discharge side and said cylin
the support frame for t?ne adjustment of the curtain rela
der together forming an open well below the axis of said
tive to the cylinder, as follows.
cylinder, said curtain being secured at one end to said
Each end of the roller is insertable in a bracket 60 and
roller whereby shifting of said support ‘frame provides
held captive therein by a bail 61 which is slidingly pivoted
to the bracket and is swingable between the open position
a coarse adjustment of the curtain position relative to
said cylinder, and rotary adjustment of said roller on
said frame will vary the effective curtain length. 1
2. A device as de?ned in claim 1 further characterized
in that said support frame includes a housing for a ‘doc
shown at the right hand end of FIGURE 4 and closed
position shown in the other ?gures. A threaded rod 63
is secured to each of the brackets and extends downwardly
to 'be threadably engaged in the sleeve 64 secured through
and to each end of bar 45. A thumb screw 66 is in thread
tor blade assembly.
3. In a machine having a rotary cylinder for applying
able engagement with rod 63‘ and by turning the screw a 55
a liquid to a surface passing thereover, said cylinder
vernier adjustment can be made to the curtain in a vertical
having a liquid entry side and a dischargeside, a ?exi
ible curtain extending along the length of the cylinder
The blade assembly housing is rigidly secured to the
and passing therebeneath and having a rear edge and
a ‘front edge, said curtain closely following the contour
of a portion of the circumference of said cylinder but
less than 90 degrees thereof, and adjustable means ad
jacent said discharge side for supporting the ?exible cur
tain’s said front edge at a distance spaced from said cylin
brackets 60 by means ofstraps 68 which are welded at
their rear‘ ends to the housing and through the other ends
of which the rods 63 extend and are held secured by the
nuts 69. Thus the thumb screws 66 provide a ?ne adjust
ment for both the curtain roller and blade assembly hous
ing. This provides any desired degree of clearance be
der so as to form an open well therewith and located
tween the curtain and cylinder, which clearance varies ap—
65 below the axis thereof.
proximately from 1A6 to 1A; of an inch. This clearance
must be closely controlled for best results and is dependent
References Cited in the ?le of this patent
on many factors, such as for example, the type of viscosity
of the vehicle being used and the type of cylinder.
In operation, the liquid cascades by gravity from the
applicator tube and down the curtain to the entry side of
the cylinder where it builds up to a depth of approximately
one-half inch or more as indicated at I. ,The curtain is
, Kanitz _______________ __ Jan. 20‘, 1942
Gurwick _____________ __ ‘Feb. 10, 1942
Nadeau et al. _________ __ July 14, 1942
Piazze ______________ __ May 22, 1945
. Coudriet _____________ .._ Apr. 5, 1960
Marzocchi et al. _______ __ Sept. 6, 1960
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