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Oct. 1, 194,6.
'
.
N. s. WELK
'
, 2,408,498 v
APPARATUS FOR COOLING AND HARDENING WAX CARBON COATINGS
Filed April 24,'_1944
2_ Sheets-Sheet v1
7
1.
21
ATTORN EY.
Oct. 1, 1946.
2,408,498
, N. S. WELK
APPARATUS FOR_COOLING AND HARDENING WAX CARBON COATINGS
Filed April’ 24, 1944
2‘ Sh'eets-Sheet 2
%.UM,
mm
INVENTOR.
@M a.
ATTORNEY.
,
Patented Oct. 1, 1946
K‘ UNITED
2,408,498
.
"
_
ING. WAX CARBON ‘COATINGS
I
I Nelson S‘lWelk,
'
Athens, Ohio; ‘assignor to The
McBee Company,
Athens,’ Qhi'oi a corporation ‘
Application April 24, 1944,"SerialNo. 532,524
1 Claim. (01. 101-416).
1
The transfer roller'IS is arranged closely adja~
This invention relates to presses for the appli
cation of wax‘ carbon to ‘sheets of’ paper. Such
cent the stripper bar I2 so as to receive the sheets
from. the ?ngers I4. A suitable bridge“ I’! vsecured
a press is : disclosed in Letters Patent of‘ the
United States No. 1,860;95'7. , In general, such a
at its ends to the side frames is arranged between
the transfer roller I6 and the coolingcylinder
I5 so as to guide the ‘paper from the transfer
press is widely known in the art as a “Kelly” type
press and is especially equipped as shown in the
roller I6 to the cooling cylinder I5.
aforesaid'patent for applying wax carbon spots
to wax sheets. For the reason that the construc
tionand operation of such a press is well knownv
it is not illustrated and described herein. g
.
,; '
_ At'the rear side .of the cooling cylinder I5 is a
second stripper bar I8 carrying stripper members
10 I9 so formed as to strip the sheets from the cool
It is the ‘principal object of 'my present inven
tionto; provide such presses with an‘ improved
means :to vcool the wax carbon- coating of the
paper sheets-as they‘ are delivered from the print.
ingv cylinder in order to, harden the carbon and 15 }
ing cylinder I5 and direct them onto the top
?ightv of a conveyer 20. This conveyer as illus
trated in- the drawings, is composed of .a pluralityv
of: narrow fabric belts spaced apart as shown.
These belts are disposed. over a roller pulley 2|
journaled in the sidelframes I0 as illustrated.
give-it ‘gloss prior to the ‘?nal delivery of the
Disposed over the conveyer 20 is 'a roller pulley 22
sheets from the press.
journaled. in the side frames I0; A plurality‘ of
Qne form which they invention may assume is
spaced ; string belts 23v arerarranged over. this.
exempli?ed in the following description and il
roller in parallelism with the top ?ight of the
20
lustrated by way ofexample inthe accompany
conveyer ~20. . The bottom ?ights of , the string
ing-cdrawings; in which:
~ ‘
belts 23 are spaced'slightly. above the top ?ight
~
Figrlv is a plan view of the apparatus embody
ing- the preferred form of my invention,
of the conveyer 20 and travel in the same direc-,
>
tion; at the same-speed so. that they will act to
Fig.2 is a side view ofthe same. ,
hold the paper sheets ?atwise =0n the conveyer 20
Fig. 3 is a longitudinallsectionr taken on line 25 for delivery at the ‘end of; the conveyer for stack
3-7-3 of. Fig. 1.
~
'
111g_
Fig. 4 is a longitudinalsection taken on line.
Referring more particularly to the accompany
ing-drawings, lit-indicates a pair of side frames
formed as a rigid part of the printing press frame
and located at the delivery end of the press. The
main frame of the press, of course, carries in the
.
»
y
7.
.
.
so that sheets directed from the printing cylin
by the transfer roller
IE to the cooling cylinder I5 and thence to the
.top ?ight of the conveyer 20 for delivery from
the machine. It is obvious, of course, that the
string belt roller pulley 22 revolves in a direction
opposite from the roller 2| at the same peripheral
the side frames I0 is a stripper bar‘ I2 carrying
stripper ?ngers I4 so positioned that they will
der I I and direct them substantially horizontally
a
' der II will be transferred
Extending laterally between
rearwardly between the frames I0.
»
directionjat the proper relative peripheral speeds‘
dot and dash lines) which operates in the con
strip the printed sheets from the printing cylin-r
>
inder.‘ II, the transfer roller I5, the cooling cylin
der I5; wthe conveyer roller~_2.|; revolve in the same
I'll
usual manner aprinting cylinder II (shown in
ventional fashion.
.
- 1It>should be pointed'out that the printing cyl
it)
_
In the present instance the printing is the ap
plication of heated wax carbon to one side of a
speed so that the lower ?ight of the string belts
23 and the upper ?ight of the conveyer .20 will
travel in the same direction at the same rate of
speed.
To drive the rollers, as just described, a drive
(not shown) is transmitted from the driving
sheets are delivered from the printing cylinder I I _ 45 mechanism of the press proper to the shaft of
the transfer roller IS. A sprocket and chain drive
the wax carbon coating will be uppermost so that
sheet of paper run through the press. When the
the under or uncoated side of the sheet will be
engaged by the stripper ?ngers I4.
Arranged rearwardly of the printing cylinder
at a spaced distance therefrom is a cooling cylin
der I5 having its ends suitably journaled in the
side frames ID. To direct the printed sheets over
this cooling cylinder I5, a transfer roller I6 and
a guide roller I6a are provided intermediate the
printing cylinder II and the cooling cylinder I5. 55
.24 transmits a drive from the shaft of the trans
fer roller I6 to the shaft of the conveyer roller
pulley 2|. Spur gears 25 and 25a on the shaft
of the roller I6 and'the shaft of the cooling cyl
inder I5 effects driving of the latter. Spur gears
26 and 26a effect a drive between the roller pul
leys 2| and 22. The shaft of the guide roller Ilia
is ?tted with a sprocket l?b which engages the
2,408,498
3
4
chain of the drive 24 to effect driving of that
roller.
To cool or chill the cooling cylinder IS, the}
latter is hollow so thata cooling ?uid or liquid
may be circulated therethrough to cool or chill
its cylindrical wall. For this purpose the end
shafts of the cooling cylinder 16 are hollow and
the sheets pass the nozzles 29 they will be stripped
from the cooling cylinder l5 by the stripper mem
bers l9 and will be directed flatwise onto the up
per ?ight of the conveyer 20. They will be held
in a ?at condition by the lower ?ight of the string
belts 23 superposed over the conveyer 20. As
the sheets are delivered by the ‘conveyer 20 they
suitably connected at their outer ends with ?uid
are, of course, stacked in the usual fashion and
or liquid conducting connections so that at all
times during the operation of the cylinder [6, a, 10 this can be accomplished without smearing or
otherwise disturbing the carbon due to the fact
cooling ?uid or liquid may be circulated there
'that it has been cooled and hardened before de
through.
"
livery as previously described,
In order to effect a rapid cooling of the carbon
0n‘ sheets passing over the roller I5, I have pro
vided means for causing the sheets to be placed
‘From the foregoing it is obvious that I have
provided a very simple but effective apparatus for
cooling and hardening the wax carbon coating of
in ?rm contact with the exterior of the peripheral ‘
sheets as the latter are delivered from the
wall of the cylinder l5 during the passage of the‘ Y‘ paper
printing cylinder of a press. It should be pointed
sheets thereover. This means comprises a pair
out that by so hardening the carbon it is given
of air-conducting tubes2'l arranged parallel to
glossy surface which enhances its appearance.
the cylinder I 5 and ?xed at their ends to the 20 a While
I have shown the preferred form of my
side frames l0. One end of the tubes are con
invention,
it is to be understood that various
nected to ?exible conduits 28 communicating
changes may be made therein by those skilled in‘
With a source of air under pressure. The tubes
the art Without departing from the spirit of the‘
21 are, of course, stationarily ?xed in the frame
invention as de?ned in the appended claim. ‘
as illustrated.
‘
Having thus described my invention, what I
Each tube 21 is formed with a row ‘of spaced
claim ‘and desire to secure by Letters Patent is:
nozzles 29 directed toward the peripheral sur
In combination with a printing'press for ‘print
face of the cylinder l-5 at the upper side thereof.
ing
wax carbon on sheets of'paper, said press
When air under pressure is directed to the tubes
including a printing cylinder, a cooling cylinder
21 a multiplicity of ?ne jets or streams of air 30
arranged at a spaced distance from the print
will emanate from the nozzles 29 and cause the
ing cylinder with its axis parallel thereto and
sheet directed between the nozzles and the cyl
revolving
at substantially the same peripheral
inder I 5 to be pressed in ?rm contact with the
speed, transfer means between the printing cyl
cylinder. The combined effect of the air nozzles
and‘ the‘ cooling action of the cylinder 15 is 'su?‘i- ‘> inder and the cooling cylinder for-transferring
the sheets from the printing cylinder over the
cient to cause rapid cooling and hardening of
cooling cylinder, a plurality of nozzles arranged
the carbon so that it will discharge from the
longitudinally over the cooling cylinder to direct
cylinder 15 hardened and with a glossy surface
air
jets towards the upper surface thereof where
and may be promptly delivered from the machine
and stacked.
-
‘
‘
~
'
' In operation of my apparatus, sheets printed in
40
the “Kelly” press and delivered by the printing
cylinder H may be stripped therefrom by the
stripper ?ngers l4 and transferred by the trans
fer roller l6 and ‘the bridge I‘! to the upper sur
face of the cooling cylinder I 5.‘ As the'sheets
by sheets directed to the cooling cylinder will
pass between said jets and said cooling cylinder,
a conveyer for receiving sheets from the cooling
cylinder and discharging them from the machine,
and transfer means between said conveyer and
_ said cooling cylinder for' stripping the sheets
‘ from the cooling cylinder and directing them to
the conveyer, and string belts overlying the con
vpass over this cylinder they will be pressed in
veyer with their bottom ?ights spaced over the
close ‘contact therewith by the action ofvthe air
jets emanating from the nozzles 29 of the tubes‘ _ conveyer to maintain the sheets ?atwise on the
conveyer.
217, This cooling action will result in hardening “
and cooling the carbon on the sheets.
After
NELSON s. WELK.
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