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Патент USA US2133750

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Oct, 18, 1938.
2,133,750
T. H. MARS ET Al.
HYDRAULIC MAT ROLLER
Filed Feb. 23, 1957
4 Sheets-Sheet l
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Oct, 18, 1938.
T. H. MARS _ET AL
2,133,750
HYDRAULIC MAT ROLLER
Filed Feb. 23', 1957
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4 Sheets-Sheet 2
Oct. 18, 1938.
T. H. MARS ET AL, v
2,133,750
HYDRAULIC MAT ROLLER
- Filed Feb. 23, 1957
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T. H. MARS ET AL
2,133,750
HYDRAULI C MAT ROLLER
Filed Feb. 25, 1937
4 Sheets-Sheet 4
WMS
Patented Oct. 18, 1938
2,133,750
UNITED STATES
PATENT OFFICE l
2,133,750
HYDRAULIC MAT ROLLER
Thomas H. Mars and Herbert C. Behrens, Battle
Creek, Mich., assignors to Duplex Printing
Press Company, Battle Creek, Mich., a corpo
ration of Michigan
Application February 23, 1937, Serial No. 127,306
20 Claims.
This invention is a novel improvement in ma
chines for pressing pieces of “iiong” onto the
printing surfaces of a type form to receive an
intaglio impression therefrom, and preliminarily
I) form a matrix from which stereotype plates 'can
be subsequently cast.
Such machines are ordi
narily called in the trade “mat rollers”.
Objects of our invention are (1) to provide a
novel mat roller machine in which all driving
parts are inside the framing; (2) to provide
a machine in which the bed can be reciprocated
Without the employment of gears; (3) to pro
vide a machine which is economical to manufac
ture and operates quietly and smoothly; (4) to
provide a novel hydraulic operative means for
reciprocating the bed; and (5) to provide a
machine which is very Iconvenient to the oper
ator and has no moving parts projecting outside
of the frame whereby the operator or other per
sons beside the machine might be caught or in
jured. Other objects of the invention -will be
hereinafter disclosed.
In the accompanying drawings we have illus
trated one practical embodiment of the inven
" tion, and will describe the same with reference
thereto. We refer to the claims for the essen
tials of the invention and novel features 'of con
struction and novel combination of parts for
30
which protection is desired.
In said drawings:
trolling the bed reciprocating means.
Fig. 2 is a longitudinal section through the
`
Fig. 3 is a transverse section through the cen
ter of the machine.
Fig. 4 is an enlarged detail section.
Figs. 5 and 6 are sections through the valve
showing same in different positions.
Fig. 7 is a detail section.
Fig. 8 is a section on the line 8_8, Fig. 9.
Fig. 9 is a section on the line 9_9, Fig. 8.
'I'he body of the machine is composed of oppo
site side frames I and 2, which are in general
similar. These side frames at about their ver
tical central portions are extended as at I a and
2a in a direction parallel with the axis of the
machine,- on which the bed 4 (hereinafter re
ferred to) travels, the length of the extended
portions la,
greater than
length of its
rowed as at
roll 6, hereinafter referred to, and are connected
together by a top tie casting 3. The side frames
are also yconnected by a bottom tie plate 3a.
The bed 4 is mounted to reciprocate horizon
tally between the side frames, and is supported
at the pressure point upon the centrally disposed
lower roll 5, disposed beneath the upper roll `6.
The bed 4, while being supported at the pres- _
sure point by the roll 5, is also supported by track
bars 'l and 'la fastened to ledges Id, 2d `on the
frames I and 2 (see Fig. l3) and extending be
neath the >sides of the bed except in way of the
roll 5. As an additional guard against tipping
the extensions la and 2a of the side frames are
provided with ñanges I e and 2e (Fig. 4), which
flanges project inwardly a short distance over
the top of the bed 4 at each side when the bed
is in either extreme of its movement. The un
dersides of the bed 4 are provided with bearing
strips 4a: (Fig. 4) removably secured thereto by
screws 4g, the strips 4x contacting with the track
bars 1, la.
The side frame I (see Fig. 3) is provided with
a housing I c for the bearing 5a of the adjacent
.journal of roll 5; and other journal of roll 5 is 25
mounted in a bearing 5b mounted on the side
frame 2. As shown frame 2 is provided opposite
the end of roll 5 with an opening 2:6 which is
closed by a closely fitted plate 2c', removably
Fig. 1 is an elevation of one side of the machine
partly broken away to expose the valve for con
axis of the machine.
(Cl. 101-12)
2a of the frames being slightly
the length of the bed 4 plus the
travel. The side frames are nar
Ib, 2b, above the bed 4, and said
portions of the frames extend above the upper
secured to the frame by bolts 2s or other suit
30
able devices. This plate 2c carries the bearing
5b in which the adjacent journal of roll 5 is
mounted. The bearing V5b may be secured in
an opening 2y in plate 2c (see Fig. 3) which is
closed by a cover plate 2e. By removing plate 35
2e access can be had to the bearing 5b; and when
plate 2c is removed the roll 5 can be removed
from or replaced in the frame. The outer sur
faces of the plates 2c and 2e `are preferably i'lush
with the outer side of frame 2.
40
The top or presser roll 6 is journaled in bear
ings (ia (Fig. 3) which are supported in hangers
8 which are vertically adjustable in guide ways
I f, 2f (Figs. 1 and 2), on the side frames. Each
hanger 8 is provided with a threaded opening in 45
its upper end engaged by an adjusting screw 8a,
which has a. flanged upper end 8b by which it is
suspended on rotatable bearings 8c mounted in
recesses in the under side of the top portion of 50
tie bar 3 (see Fig. 3) and secured therein by re‘
tainer plates 8e.
The screws 8a are reduced in
diameter as at 8f to receive the Lanti-friction
bearing 8c which transmit the upward thrust
from the roll B (when rolling a mat) through the 55
2,133,750
2
races of the bearings 6a to the seat for the upper
races of the bearings 8c in the top tie 3.
The screws 8a are provided with worm gears
8d which mesh with forms- 9d on a transverse
shaft 9 journaled at its ends in bearings 9c in
the ends of the tie 3 (see Fig. 2). To raise or
lower the roll 6 shaft 9 is rotated, and through
worms 9d and gears 8d the screws 8a are ro
tated. As shown the shaft 9 carries a worm gear
9a which meshes with a worm Illa on a shaft ||l
the fluid, whether forced into or out of the cham
bers 41~ or 41, passes through the control valve
|'| by means of its inlet and exhaust ports, the
action of the control valve being very similar to
the action of a slide valve in a steam engine.
A pump 2| operated by a motor 22 is provided
for forcing the ñuid into either chamber 41', 41
through valve I‘I, and when it is forced through
one chamber it is discharged from the other,
preferably into a supply tank 20, the fluid being
which extends below the shaft 9 and at right an
gles thereto. The shaft I0 extends outside of
the frame and may be provided with handles
Iûc (see Figs. 1 and 2). By manually revolving
15 knobs IIlc motion is transmitted through the
shaft 9 to rotate the screws 8a; and thus the
top roll E can be raised or lowered to obtain the
desired adjustment between said roll 6 and bed 4.
Cylinder 5 has gears 5d on each end which
20 mesh with racks 4d on the underside of the bed
adjacent the track bars 1, la, so that the bed
will travel at uniform speed with the periphery
of roll 5. On the shaft of roll 5, adjacent the
side frame 2, is a gear 5e which meshes with a
25 gear 6e on the adjacent end of the shaft of roll
6 so as to synchronize the speed of movement
of bed 4 with the peripheral speed of the rolls.
The bed 4 is formed with one or more cylin
dric bores 4a which constitute hydraulic cylin
30 ders by means of which the bed is reciprocated
subsequently withdrawn from tank 20 and forced
into the other chamber by pump 2|. A relief
valve 22x may be provided (see Fig. 1) to re
lieve pressure in pipe Ilg when the valve I'I is
thrown into neutral position, thus allowing the 15
pump and motor to continue running without
danger to the mechanism, the iluid by-passing
through pipe 22a to the tank 20.
,In the construction shown (Figs. 1, 3, 5 and 6)
the header pipes I5 and |511'l are respectively con
nected to ports I'Ia and I'lb of control valve I1,
which also has ports I1c and I‘Id connected by
pipe I'Ie to tank 20; and also an intermediate
port I‘If connected by a pipe I'Ig to the outlet
of pump 2|, the inlet of which pump is con 25
nected by a pipe 2|a to the tank 20. The valve
I‘I is provided with a spool piston I'Ih which
when in one extreme position (see Fig. 5) will
close the port I'Ic and open the ports I'Ia and
I'Ib, |`|d and Ilf. In this position, pump 2| will 30
draw fluid from tank 20 through pipe 2| a and
pass same through pipe I‘Ig to the valve port I‘If,
lightness the bed 4 may be provided with longi
the fluid passing through the piston I'Ih and
tudinal holes 4h to reduce its weight without through header pipe |5a into the chamber 41,
appreciably affecting its resistance to pressure. and consequently the bed 4 will be moved to the 35
35 In some cases only one cylinder 4a might be left (Fig. 2); at the same time fluid will escape
used in the bed 4, but we prefer to use two so from the chamber 4r passing through header
as to keep the pressure on the bed more uni
I5 and through the connected ports I'Ib and I‘Id
form than would be the case if only one cylinder
and through pipe I`|e to tank 20. Similarly if
were used. Each of the two cylinders 4a are the valve piston I‘Ih is moved into the other 40
similarly connected to the inlet and the dis
extreme position (Fig. 6) the port I'Id is closed,
charge pipes, but one control valve and one con
and the ports I'|f--|'|b-, also ports I'Ia-I'Ic are
trol rod, hereinafter described, are used to oper- respectively in communication through and
ate both cylinders.
around the end of the valve and fluid under
In each cylinder 4a in the bed 4 is a piston
pressure admitted to pipe I4 and to chamber
I4b which divides the cylinder into right and 4r, whereby the bed 5 is moved to the right (Fig.
left chambers 4r and 41 (Fig. 2). To the piston 2) ; while the fluid from chamber 41 is discharged
|4b are connected the inner ends of axially alined through ports I'Ia, |1c and pipe I‘Ie to the tank.
tubes I4 and I4a, the outer ends of which are When Valve piston I‘Ih is in neutral position, as
fastened to end bars II which connect the outer shown in Fig. 1, the ends of the valve close ports
50
ends Ia, 2a of the side frames I and 2. The
I‘Ia and |1b and no fluid can enter either cham
tubes I4, I4a are preferably attached to end bars
|| by means of universal couplings IIa or by ber 41' or 41, while both chambers communicate
other suitable means. The ends of the cylinders through ports I'Ia-I'Ic and I'Ib-I‘Id respec
tively with pipe I'Ie leading to the tank 20, and
4a are closed by heads 4b which may be pro
the bed 4 will remain motionless until the valve 55
vided with stufling boxes 4c making a close slid
piston I‘Ih is again thrown into position shown in
ing ñt with the tubes I4 and I4a. Oil or other
suitable huid may be alternately pumped into Fig. 5 or 6. Thus when fluid is admitted to
as hereinafter described, and for purpose of
the cylinder chambers 4r, 41, at opposite sides
of piston |4a.
For convenience the oil may be
admitted into the chamber 41 through tube I4a,
which has an opening I4c adjacent the piston
|412; and simultaneously ñuid can be exhausted
from the chamber 4r through the tube I4 which
has an opening | 4d adjacent the piston |4b.
The outer ends of the tubes I4a may be con
nected to a common header pipe |5a; and tubes
I4 may be similarly connected to a header pipe
I5. The pipes I5 and |5a are connected with a
iluid supply and exhaust valve I1 whereby when
70 fluid is admitted to one chamber of the cylin
ders the other chamber can be simultaneously
discharged of fluid. The control valve I1 can be
placed at any convenient location between the
side frames.
Preferably Same is located inside
of the frame I as shown in. Figs-l 1 and 3» A11
either set of chambers 4r or 41 the bed 4 is
moved under fluid pressure, same being moved
to the left if fluid is admitted at the left side of 60
the piston |4b; and to the right if fluid is ad-
mitted at the right side of the piston I 4b.
The valve piston I'Ih has a stem I'Ii connected
to one end of a lever 23 which is pivoted at 23a
on the adjacent side frame I, and the other end
of this lever is engaged with a pin 24a on an
axially movable control rod 24 which extends
horizontally beside the adjacent side frame (Figs.
1 and 3). As shown the ends of the rod 24 are
loosely engaged with rocker arms 24h (Fig. '7) 70
attached to manually operable levers 25 pivoted
in the outer ends Ia of the side frame by which
the rod 24 can be readily manually shifted axi
ally by the operator. By shifting rod 24 the lever
23 is caused to shift the valve piston I'Ih to the 75
2,133,750
desired operating position, and by the above ar
rangement When rod 24 is shifted in one direc
tion, i. e. to the right, the bed 4 is caused to move
to the left, and when the rod is shifted to the left,
the bed is caused to move to the right; this ar
rangement permitting the use of automatic stops
for shifting the valve to neutral position by the
bed 4 when the latter has reached the end of its
outward travel in either direction.
10
The automatic stops comprise collars 26 adjust
ably mounted on the rod 24 adjacent the ends
of the bed when same has reached its outward
limits of movement. Collars 26 are adapted to
be respectively engaged by lugs 4m attached to
15 the ends of bed 4, said collars being so adjusted
that at any desired point of travel of the bed the
lug 4m at the leading end of the bed will engage
its related collar 26 and cause the shifting of
rod 26 to bring valve Hh. to neutral position and
20 hence cause the closing of the valve, thereby
stopping the bed. The adjustable collars 26 pro
vide for the stopping of the bed 4 at various
points of travel. For full length travel of the
bed stops are not required since the bed will auto
25 matically stop at the end of its full travel when
the hydraulic chambers 4r, 41 have reached the
limits of their strokes.
Thus while the bed is
stopped automatically when it reaches the ends
of its strokes in either direction, the bed must be
started by shifting the manually controlled levers
25 at the ends of the machine.
In operation, the bed 4 is moved to one end of
the frame by shifting hand lever 25, and a type
form from which a matrix is to be made is placed
35 upon the bed. A piece of prepared paper pulp
called in the trade “fiong” is then placed upon
the type form, then a blanket is placed on top
of the flong, and the bed is started by shifting
the manually operated handle 25 in the opposite
40 direction, and the bed is moved between the rolls
5_6 to the other end of the machine where it is
stopped automatically as hereinbefore described.
The blanket is then removed and the pressed
flong (which after this operation is a matrix,
45 having the printing surfaces pressed into it) is
removed, and after it is dried, same is used in
the stereotype plate casting box. The bed is
returned to first position at the convenience of
the operator.
Referring to Figs. 8 and 9, a modiñcation is
50
shown in which the ñuid cylinder drive in the
bed is omitted, and a quadrant drive substituted
in place thereof. In this modification the quad
rant 30 has a bearing 30a keyed on a shaft 3l
55 journaled in bracket la: in frame I , said quad
rant having gear teeth meshing directly with
one of the gears 5d on the shaft of roller 5.
A
double acting hydraulic cylinder 32 is pivoted as
at 32a on the frame l and has a piston rod 33
60 connected with a rocker arm 3Ia keyed to the
quadrant shaft 3|, so that the quadrant will be
actuated by the piston rod 33. If desired the
rod 33 might be connected directly to the quad
rant 30 itself. Any movement of the cylinder
piston 33 is transmitted to the quadrant and, in
turn, to the bed 4 through the gears 5d of roller
5 which mesh with the racks 4d on the underside
of the bed, giving the bed the desired recipro
cating motion. The fluid cylinder 32 is con
trolled by the same valve means Il and fluid
circuit described with respect to Figs. 1-'7 inclu
s1ve.
The novel features of our machine are the
means for driving the bed 4 by hydraulic pres
sure within the cylinders 4a in the bed 4, or
3
the cylinder 32 coacting with the quadrant gear
3U; the construction of the framing so as to
confine all moving parts inside the same; the
construction of the framing to allow insertion
and removal of important parts without disman
tling the machine or framing; and the construc
tion of the mechanism for adjusting the top roll.
We claim:
1. In a mat roller, a reciprocable bed having
a fluid cylinder, a stationary piston in the cyl 10
inder, and means for admitting fluid under pres
sure into the cylinder at one side of the piston
and simultaneously withdrawing fluid from the
cylinder at the opposite side of the piston.
2. In a mat roller, a reciprocable bed having a 15
cylinder, a stationary piston in the cylinder,
means for admitting iluid under pressure into
the cylinder at one side of the piston and simul
taneously withdrawing fluid from the cylinder at
the opposite side of the piston, and a valve con
20
trolling the admission and exit of ñuid to and
from the cylinder.
3. In a mat roller, a reciprocable bed having a
bore forming a fluid cylinder, a stationary piston
in the cylinder, means for admitting fluid under 25
pressure into the cylinder at one side of the pis
ton and simultaneously withdrawing ñuid from
the cylinder at the opposite side of the piston,
a valve controlling the admission and eXit of fluid
to and from the cylinder, and manually operable
means whereby the valve may be shifted to cause
the bed to be moved in the desired direction.
4. In a mat roller, a reciprocable bed having a
cylinder, a piston in the cylinder, and valve means
for supplying ñuid to the cylinder.
5. In a mat roller, a frame, a reciprocable bed
mounted in the frame; a roll supporting the' bed;
and means whereby the roll may be removed end
wise from position Without dismantling the bed
or frame.
6.
bed,
side
side
40
In a mat roller, side frames, a reciprocating
a roll supporting the bed, a bearing in one
frame for one end of the cylinder, the other
of the frame having an opening to permit
entry or removal of the roll therethrough, and a
removable plate closing said opening and having
a bearing for the other end of the roll.
7. In a mat roller as set forth in claim 6, means
in said plate for permitting access to the latter
bearing.
50
8. In a mat roller; side frames, a reciprocable
bed mounted between the side frames; a roll be
low the bed; a roll above the bed and adapted
to cooperate with the bed in pressing mats; hy
draulic means for reciprocating the bed; and 55
gearing for rotating the rolls synchronously with
the bed.
9. In a mat roller as set forth in claim 8; means
for permitting removal of the lower roll without
dismantling the side frames and bed.
60
10. In combination with a mat roller as set
forth in claim 8, a bearing in one side frame for
one end of the lower roll; the other side frame
having an opening of size to permit insertion or
removal of the roll therethrough; and a remov
able plate closing said opening having a bearing
for the adjacent end of the roll.
>11. In a mat roller; side frames, a reciprocable
bed mounted between the side frames; a roll be
low the bed; a roll above the bed disposed opposite 70
the ñrst roll and adapted to cooperate with the
bed in pressing mats; means for reciprocating the
bed, and gearing for rotating the rolls.
l2. In a mat roller as set forth in claim 11, a
bearing in one side frame for one end of the roll; 75
2,133,750
4
the other side frame having an opening of size
to permit removal of the roll therethrough; a
removable plate closing said opening having a
bearing for the adjacent end of the roll; and
means to prevent tipping of the bed.
13. In a mat roller as set forth in claim 11, a
rack Von the bed meshing with a gear on the ñrst
roll; intermeshing gears on the ñrst and second
rolls; and ñuid actuated means for reciprocating
the bed.
14. In a mat roller, a bed having a cylinder,
rolls above and below the bed, racks on the bed
meshing with gears on the lower roll; intermesh
ing gears on the rolls; a stationary piston in the
cylinder; means for admitting fluid under pres
15
sure into the cylinder at one side of the piston
and simultaneously withdrawing fluid from the
cylinder at the opposite side of the piston; a valve
controlling the admission and exit of ñuid to and
from the cylinder; and manually operable means
for shifting the valve.
'
v
15. In a mat roller, a bed having a cylinder,
rolls above and belowv the bed, racks on the bed
meshing with gears on the lower roll; intermesh
ing gears on the rolls, a stationary piston in the
cylinder; means for admitting fluid under pres
sure into the cylinder at one side of theïpiston and
simultaneously withdrawing fluid from the cyl
inder at the opposite side of the piston; a valve
30 controlling the admission and exit of ñuid to and
írom the cylinder; manually operable means for
shifting the valve; and means for automatically
returning the valve to normal position at the end
of each stroke of the bed.
16. In a mat roller having a bed and cooper
ating rolls, racks on the bed meshing with gears
on the lower roll; intermeshing gears on the rolls;
a double acting iiuid cylinder having a piston; a
member operated by the piston and meshing with
a gear on the first roll, and valve controlled means
for admitting fluid to the cylinder.
17. In a mat roller; side frames; a reciprocable
bed; a roll supporting the bed; means for pre
venting tipping of the bed; a second roll above the
bed; a rack on the bed meshing with a gear on the
first roll; intermeshing gears on the rolls; a dou
ble acting fluid cylinder having a piston; means
for operating the bed actuated by the piston; and
valve means for admitting iiuid into the cylinder.
18. In combination with a mat roller as set
forth in claim 17, manually operable means for
shifting the valve; and means for automatically 15
returning the valve to neutral position at the end
of each stroke of the bed.
19. In a mat roller, a frame; a reciprocable bed
_mounted in the frame; a roll in the frame dis
posed above the bed adapted to cooperate with 20
the bed in pressing mats; means for adjusting
the roll to and from the bed; and means for recip
rocating the bed and for synchronously rotating
the roll; said adjusting means and reciprocating
25
means being enclosed within the frame.
20. In a mat roller, a frame; a reciprocable
bed mounted in the frame; a bed supporting roll
below the bed; a second roll above the bed adapted
to cooperate with the bed in pressing mats;
means for adjusting the second roll to and from 30
the bed; and means for reciprocating the bed and
for synchronously rotating the lower and upper
rolls; said adjusting means and reciprocating
means being enclosed within the frame.
35
THOMAS H. MARS.
-
HERBERT C. BEHRENS.
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