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Патент USA US2133517

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Oct. 18, 1938.
i
w.\c. Hur-:BNER l
2,133,517
COMING APPARATUS
>original Filéd sept. 22, 193e
5 Sheets-Sheet 1
INvE'N-rnn
WLM
TTCIRNEY
Oct. 18, l938._
»
w. c. HUEBNER
2,133,517
COÀTING APPARATUS
’
original Filed sept. 22; 193e
s sheets-sheet 2
63 i" A59/65 764
"62
ATTGHNEY '
oct.' 1s, '1938.
w. C. HUEBNER
COATING APPARATUS-ì
2,133,517'
j
Original Filed Sept. 22, 1936 "
»fw
3 She<a‘l'¿s-Sh¢?e.'<I 3
TTDRNEY
„Bß'l' AVAIIÁBLE @SPY
itented Oct. 18, 1938
2,133,517
PATENT ¿OFFICE
UNITED STATES
2,133,511
coA'rlNG APPARATUS
william c. rmebner, New York, is. Y.
Application September 22, 1936, Serial No. 101,951
Renewed August. 13, 1938
2 Claims.
as viewed in Figure 1. Slidably mounted on said
bottom casting 26 at the opposite end thereof, is
a second vertically extending standard 26. A
This invention relates to improvements in coat
ig apparatus and, more particularly, apparatus
Jr coating cylinders such as rotagravure cyl
iders and inking cylinders with coatings, emul
lons and inks.
One object of the invention is to provide an
plurality of combined bracings and guide rods
29-29, preferably four in number, as best shown
in Figure 2, are employed, ythe same being rigidly
connected at their right hand ends, as viewed in
Figure 1, to the standard 21 and slidablyggcon
mcient apparatus for depositing liquid coatings
`f widely variable characteristics, uniformly on
he surfaces of relatively large cylinders.
nected, at their opposite ends, with’the standard
Another objectl of ‘the invention is to provide
»n apparatus for applying liquid coatings to the
28 and adapted to be'locked ‘or secured in ad
justed position with reference to the standard
28 by set screws 59 threaded into the standard 28
‘,urfaces ofcylinders in the form of lthin sheets in line with the rods 29. By this construction, it
»r layers of desired width corresponding to the will be evident that the carriage B is adjustable
engths of the cylinders and of' an adjustable as to length to thereby accommodate cylinders D
y,hickness dependent upon the nature and con Yof varying length.
sistency of the coatingmaterial and its intended
To provide for reciprocatory movement of the
carriage B, the latter is supported on the tracks
ne.
,
More specific objects of the invention are to 24 by a pluralitywof antifriction rollers 6I and, to
provide a coatingapparatus of the character
lndicated in the -preceding paragraphLs wherein
provision is made for accelerating the drying or
setting of the applied coating; for maintaining
prevent upward tilting or displacement of the 20
carriage B, additional anti-friction rollers 82
are provided, the latter being carried by the
brackets securedto the base casting 26 and the
the coating material at the desired temperature rollers being disposed beneath the overhanging
and consistency for proper and rapid application; I portions of the tracks 24. Reciprocatory move
and for applying pressure to the coating material
during the application thereof to the cylinder
surfaces in those instances where the coating
material is of a thick and more or less semi
ment is imparted to the carriage B as by the
motor 33 mounted on a cross plate 23 in the base
A, said motor, through suitable worm gearing,
driving a disk 38 having radially adjustably con
nected thereto, a pitman 4| which in turn is 30
Other objects of the invention will more clearly . pivotally connected as indicated at 32 to the bot
appear _from the description and claims here
tom casting 26 of the carriage. With the COn- .
plastlc nature.'
,
_
inafter following.
l
_
y
In the drawings forming a part of this speci
ficatiön, Figure l isa front elevational view of a
` struction broadly indicated, it is evident that a
'rapid reciprocatory movement of desired length
of stroke may be imparted to the carriage B. The
machine or apparatus having >the improvements
incorporated therein. Figure 2 is a vertical
parts of the base carriage and reciprocatory drive,
transverse sectional view, vupon a somewhat en
those described in my copending application,
vlarged scale,
corresponding to' the section line l . Serial Number 99,447, filed Sept. 4, 1936, for im
z-x of Figure l, parts being’broken away at the`
`bottom to better accommodate the view onY the
sheet. And Figure3is a longitudinal, horizontal
sectional View, upon an enlarged scale, corre
sponding substantially to the section line y-y of
Figure 1.
ì
so far referred to, are or may be the same as
`
,
-
In said drawings, the apparatus comprises
broadly a base A; a horizontally reciprocatory
carriage B; a tank or container for the coating
solution or other material to be applied to the
vsurface of the cylinder D. Various other features
, of the invention are described in detail herein
after.
provement in Coating machines, to which refer
40
ence may be had for a more detailed description. ,
As ypreviously indicated,y the standard 28 is
adjustable toward and from the standard 2`| to
accommodate cylinders of different length and ~
the means for effecting such adjustment prefera
bly consist of racks 44 provided along the under
sides of the rods 29 and with which racks cof
operate pinions 45-45 carried on transversely'
The upper shaft 46. as
extending shafts 46-46. provided
with a crank 50
shown in Figure 2, is
handle 41 and, to insure simultaneous and equal
vrotation of all of the pinionsv 45, the shafts 46
The base A will preferably be built up of _chan
have secured thereto sprocket gears 48 over
nels 20 having mounted thereon along each side which extends a sprocket chain 49. The car
thereof, tracks 24, which overhang the channels riage length adjusting means just described are 55
similar to those disclosed in my said copending
5 20 for the purpose hereinafter described.
The carriage B preferably includes a bottom application -to which reference may be had for
the
full
length
thereof
and
I casting 26 extending
a more detailed description.
with 'which is rigidly or flxedly associated at one
Tov rotatably support the cylinder D through'
end thereof, a vertically extending heavy stand
its trunnions 68, the carriage B has vertically
o ard 21, said standard being at the right hand end,
2
2,133,517
slidably mounted on the outer side of each of the
standards 21 and 28 thereof, a cross head 56, ver
the tank, the latter having a lower beveled ed
|36 parallel to the partition |33.
Adjustment of the front wall |30 of the tai
is effected through the following means. Sa
tical adjustment being effected through nuts 51
on the cross headwith which cooperate adjust
ing screws 58. 'I'he screws 58 are swivelled in
brackets 59 secured to the standards 21 and 28
and are adapted to be simultaneously actuated
Wall |30isnprovided with an outer spaced w1
,
|31 held in spaced relation by spacer-blocks .|
to provide a liquid chamber |39 for the pu
through helical gears 60-carried by a longitudi
nally extending shaft 63, all as more particularly
pose hereinafter described. Secured to said fro:
The
cross heads 56, at their upper ends, are provided
with pairs of heavy anti-friction ‘rollers 61 which
provide two rolling/points of supports for each
of the trunnions 68 as will be understood.
15
Rotary motion is imparted to the cylinder D
from a motor 81 vertically adjustably mounted
side, are vertical racks |40 with which coopera
pinions |4|-|4| carried by a horizontallyy e:
tending shaft |42 journaled in brackets |43-|1
in turn rigidly mounted on the end walls Ii
of the tank. At one end thereof, the shaft I4
10 described in my said copending application.
on an extension bracket |56 carried by the left
hand cross head 51, as viewed in Figure 1. 'I’he
shaft of the motor 81 carries a V-pulley with
20 which cooperates a V-belt 89, the latter taking
over a, V pulley 90 adapted to be temporarily
rigidly secured to the adjacent trunnion 68 of
the cylinder by any suitable means such as an
expandible mandrel such as shown and described
25 in my said copending application.
From the preceding description, considered in
connection with the more detailed disclosure of
my copending application, Serial No. 99,447, it
Wall |31, 'at each end thereof, and on the out
carries a worm gear |44 with which cooperati
a worm |45 carried by a vertically disposed sha:
|46 journaled in an extension |41 of the bracki
|43, said shaft |46 being provided with a cran
arm |48 at the top thereof. As will be apparen
the valve control front wall |30 can be delicate]
adjusted through the worm bearing described an
its adjusted position maintained by reason of th
worm gearing.
As will be evident from inspection of Figur
2, the double inclined bottom of the chambe
|29 provides a second liquid containing chambe
|49 and communication is established betweei
will be apparent that the entire carriage B may ' said chamber |49 and the front liquid chambe.
|39 by means of pipe connections |50 and |5|
cylinder D.therewith and also rotary movement the latter having a flexible unit therein such as z
section of hose to accommodate the adjustmen4
imparted to the cylinder D either simultaneously of
the front wall |30.
<_
or alternately as conditions may require, depend
Beneath the inclined partition | 21 is former`
ent upon the nature of the coating to be applied
a heating chamber |52 in which may be dis
'
35 to the cylinder.
posed
any suitable heating means such as the
Referring now more particularly to Figures 2
30 be given a reciprocatory movement carrying the
and 3 and the tank or'containerçC.
The car
riage B, at its upper end, is provided with hori
zontally extending' heavy tracks |20, each se
cured to the standards 21 and 28, respectively,
and slidably mounted on said tracks', toward and
electric heaters |53 indicated conventionally in
Figure 2, and supplied with current through the
cable |54.
The chamber | 52 is normally closed
`but rendered aßcessible by means of a back wall
|55 in the form of a door hingedly supported at
|51 and adapted to`be latched at its lower edge
from the cylinder D, are4 castings |2| which sup
by the latch |58.
port the tank or container proper C. Horizontal
From the preceding description, it will be seen
adjustment is effected through racks |22 secured
to the inner -sides of the tracks |20 and 'pinions that the coating solution within the chamber
|29 may be maintained- at the properl tempera
|23 carried by a shaft |24 journaled at its ends
in the castings |2|. _Said shaft |24 is adapted' ture and consistency, dependent upon the nature
of the coating, by the heat derived from the heat
to be operated by a crank arm |25.
'I'he tank C'is of special construction, having ing element |53 and the liquid, such as water,
maintained in the two intercômmunicating charn~`
vertical end walls _|26_|26, a diagonally extend
ing partition |21 and fixed bottom wall |28, said bers |39 and |49. To facilitate maintaining the
end and bottom walls and partition |21 being coating solution at the desired temperature, a
rigidly united. 'I'he front wall of the material thermometer, as indicated at |59, may be ein
the same being mounted in the cover |60
containing chamber |29, is formed by a verti ' ployed,
of the tank.
f
cally adjustable slide |30 mounted in the guides
In
the
case
of
certain
materials
to
be
appliedÍ
|3| formed in the end walls |26, as shown in
to cylinder surfaces, such as heavy inks, the con
Figure 3.
Disposed above the partition | 21 and held in sistency thereof is such that the same' do not
spaced relation with respect thereto by spacer flow readily under gravity. In such cases, it is
60 blocks |32 is a second inclined partition |33 ‘ desirable that the action of gravity be supple
`forming. the true bottom of the chamber |29. mented by pressure to insure a uniform ilow and
Said partition |33 has its lower end extended discharge of the material to the cylinder land
downwardly toward the cylinder surface with a provision is made therefor in the present inven
beveled edge |34 which normally will be placed tion. The cover |20 is extended beyond all sides
of the tank and an air seal provided therefor
closely adjacent the surface of the cylinder so as
to effect delivery of the coating material in a . by means of any suitable sealing gasket such_as
thin sheet, as indicated at |35, onto the surface indicated at |6|. The cover is held down se
of the cylinder rotated in the direction indicated ~curely by any suitable means as by the hinged
clamping brackets |62 and screws |63 carried
.by the arrow a. As will be apparentI from Fig
thereby. Air pressure is supplied from any suit
70 ure 2, the coating material is delivered or de
DOslted upon the cylinder surface in a line above
able outside source as through the pipe |64
entered through the cover `| 60 and the desired
the cylinder. 'I‘he desired thickness of the sheet pressure indicated through the pressure gage |65
of coating material as delivered from the tank C also carried by the cover |60.
. is obtained by adjusting the front wall |30 of ing In order to control the rate of setting or dry
i a horizontal plane passing through the axis of
of the coating applied to the cylinder, the
i
3
~ 2,133,517
llowing arrangement is employed. Detach
)ly supported on the upper pair of bracing rods
l and one of the lower rods 29 is a box-like
fainage tank comprising end walls |66, vertical
ick wall |61 and inclined bottom wall |68, all
gidly united. 'I‘he end walls are preferably
xrther united and rigidiiled by longitudinallyv
:tending tie rods |68.
The drainage tank is further provided with a
‘ont removable inclined bottom wall |10 mount
i in suitable grooves |1| formed in the end
the container C will be sealed and air pressure
applied so as to- supplement the gravity action
and force the coating material through the orifice
under increased pressure.
'alls |66. The front bottomwall |10 will be so
ositioned that its lower edge |1| will be held
paced slightly from the oppositely inclined bot
>m wall |68 so as to allow drainage or discharge
f surplus material which is ultimately delivered
rom the bottom lip |12 into a V-shaped trough
13 detachably mounted on the standards 21 and
8 by any suitable means such as the hook and
lot arrangement indicated at |14. The trough
14 is provided with a drain pipe |15 to conduct
he discharge to the sewer or the like.
The drainage tank is further provided with a
ront narrow rail |16 to which is hingedly con
iected a door closure |11 which, when in closed
>osition, engages with the upper edge of the
ront bottom wall |10.
To further enclose the cylinder and complete
he drying chamber therefor, a box-like hood |18
s detachably mounted on the top of the drain- '
Lge tank, as clearly shown in Figure 2. As will
)e understood, said hood |18 will be of sufficient
ength to overlie the ends` of the tank C and
irovide a practically sealed closure for the cyl
nder except only for a sufficient opening to re
:eive the lower extended edge of the inclined
partition |33 of the tank. In Figure 2, parts of
:he hood> are broken away, as indicated at»|19,
merely in order to better illustrate details of
:onstruction of the tank C.
`
e
Carried in the front wall of the hood |18 is an
exhaust fan |80 to produce a forced circulation
of air through the heating and drying chamber,
lt being understood that the amount of air is
primarily regulated by the size of the slot open
ing left between the walls |10 and |68 of the
drainage tank. As will be understood, this slot
opening may be varied in size either by provid
ing for an adjustment of the bottom wall |10 or
by having interchangeable walls |10 of different
width;
.
'
‘
When 1t is desired to accelerate the drying or
setting action by application of heat, the remov
able bottom wall |10 may be replaced by another
similar bottom wall having on its upper side
thereof, electric heating elements such as shown
at |8| adapted to be supplied through the plug
|82. Preferably, the heating elements will be
enclosed within a grill |83 so as to better diffuse
In some cases, par
ticularly where the coating material is relatively
thin and quite iiuid, the entire carriage B on
which is supported the container C, will be given
a reciprocatory motion from the motor drive 38,
4|, 42, in order to prevent the formation of
“beads” or “bells” of the coating material as the
latter is rotated and which would thereby result
in an uneven coating. As will be apparent to
those skilled in the art, the use of heat in con
nection with the coating material in thecon
tainer C and the use of heat and the exhaust
fan in connection with the rotating cylinder,
will depend entirely upon the characteristics of
the coating material being used, and the speed
of drying or setting desired. In otherfwords, the
apparatus is designed for a wide range of use
with provision for taking care of the many vari
ables encountered in practical use.
From the preceding description, it will be seen
that means are provided for not only accurately
controlling the application of the coating mate
rial to the cylinder, but also to control the rate
of drying or setting thereof after application,
thus permitting the use of the apparatus for ap
plication of coating materials of widely different
characteristics.
.
As will be understood by those skilled in the
art, the tank C, drainage tank and associated
hood are all readiiy removable from the appa
ratusto facilitate insertion and removal of the
cylinders and also to permit of interchange where
cylinders of different length are being coated.
Although there has herein been shown and de
scribed what ._is 'now considered the preferred
manner of carrying out the invention, the same
is merely illustrative and not by way of limita
tion, all changes and modifications being con
templated that come Within the scope of >the
claims appended hereto.
What is claimed is:
'
'
rocating the carriage on the base; means on the
carriage for supporting and rotating a cylinder
about a horizontal axis; a material container.`
mounted on the carriage and disposed adjacent
the cylinder, said container having a discharge
slot orifice extending lengthwise thereof parallel
to the cylinder axis; means for applying air pres 55
sure to material within the container; and heat
ing means for the material within the container.
2. In apparatus of the character described, the
combination with a base; of a carriage recipro
catingly mounted on the base; means for recip
rocating the carriage; means on the carriage for
supporting and rotating a cylinder about a hor
izontal axis; a material container also mounted
the heat. A thermometer |84 extended through
the hood |18 is preferably employed to facilitate
regulation of the temperature within the heat
ing and drying chamber.
` on the carriage; adjustable means for controlling
In actual practice, the coating material is de
the discharge of material from the container to
livered from the container C onto the surface f a cylinder surface; a housing structure substan
of the cylinder D while the’latter is rotating in tially enclosing the cylinder, said housing, struc
the direction of the arrow a. As hereinbefore ture being detachably mounted on the carriage
described, the discharge oriñce for the coating and including a drainage tank and a hood; and
material will be adjusted in accordance with the means on said housing structure for controlling
characteristicsl of the particular coating mate
rial which is being used. In some'instances, the
coating material will be allowed to ilow slowly
under the influence of gravity but in other in
stances, where the material is relatively thick,
45
1. In apparatus of the character described, the
combination with a base; of a carriage recipro
catingly mounted on the base; means for recip
the rate of drying or setting of material deposited
on the cylinder surface.
'
WILLIAM C. HUEBNER.
e
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