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Патент USA US2110140

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March 8, '1938.
Filed Jan. 21,'1955
4 Sheets-Sheet 1
BY QZ@ ¿1_ )LÃ
March 8, 1938.
Filed Jan. 2l, 1935
4 Sheets-Sheet 2
IN VEN T0. v
` ÍvÍarch 8, 1938.
Filed Jan. 2l, 1935
4 sheets-sheet- s
UH'I '
Klop f'e‘x-»Lsî'ein
March 8, 1938.
Filed Jan. 21, - 1935
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PatentedV Mar. i 8, 1938
N 2,110,140Í
Jesse D. Klopfenstein, Huntington, Ind., assigner,
by direct and mesne assignments, to «Process
Machine Corporation, Fort Wayne, Ind., a cor
poration of Indiana.
Application January 21, 1935, serial No. >2,695
10 Claims.
The invention relates to machines by which to
impress paint and other fluids in predetermined
patterns orl arrangement on paper and other
material that is fed to the machine.
In recent years there has been developed a
-method of producing advertising matter, posters,
catalogs and other matter in which designs, pat
terns, figures, letters, etc., are formed on paper,
paper board or othermaterial by the use of sten
10 cil screens.
The screen is formed of silk, copper wire,y or
gandie or other suitable materials and the design
is formed thereon. The screen is blocked off or
made temporarily or permanently impervious ex
15 cept in the portion or portions thereof through
„which an intended impression is to be made on
secured to the shaft I2’meshes with a gear I1 se- ,
cured to the shaft I8 upon which shaft an inter
mittent gear I9 is rigidly mounted. An inter
mittent gear 20 meshes with the gear I 9 and
with an intermittent gear 2l. The gear 20 is
`secured to the shaft 22 that leads from a suitable
differential 23 to which the drive shaft 24 is con
nected. The drive shaft is driven in suitable
manner, as by an electric motor 25.
A cam 26 on the shaft 22 is engaged by an arm 10
21 that is secured to a rock shaft 28 adapted to
rock the arms 29 that are pivoted respectively
to the links 30. The links 30 are pivoted to a
rod 3|., and the links 32 are pivoted to this rod
and to the lower side of the platen 6 by all which 16
the platen is intermittently raised and lowered on
the sheet of stock that is beneath the screen.
its hinges _1.
Generally the material has been forced through
the screen by hand. Hand work is expensive and
A series of transverse gripper-carrying bars
33 is carried by the chains. Each bar is suitably
attached at its opposite ends to the two chains 20
and the vspacing between the bars is such that
the sheet 34 of the stock upon which the stencil
ing material is to be applied may be engaged by
the bars successively without overlapping one
20 slow and more or less inaccurate in accomplish
ing the desired result.
The object of my invention is to provide a ma
chine by which to effectively and efficiently ap
ply iiuids through stencils- to various materials
25 or stock. Other objects and advantages will ap
pear hereinafter.
The invention is illustrated in the accompany
ing drawings in which
Figure 1 is a side elevational view of a machine
30 embodying the invention.
Fig. 2 is a rear end elevational view of the ma-l
Fig. 3 is a plan view of the machine.
Fig. 4 is a cross-section on line 4--4 of Fig. 2
35 illustrating the stock gripper in releasing posi
another. Each bar, Figs. 4, 5, supports aLsuit 25
able number of grippers 35, three such being
shown. Each gripper consists of a tapered iinger
36. loosely keyed to the revolubly mounted shaft
31 so that it may accommodate varying thick
nesses or irregularities in the stock 34. A spring 30
38 opposes this accommodation movement of the
gripper. A finger 39 is secured to the shaft 31
and depends therefrom.
This finger, when it
contacts a cam 40 on the shaft I2 rocks the shaft
31 and thereby elevates- all the grippers to re
lease the imprinted sheet 34. Also when it con
Fig. 5 is an elevational view in enlarged scale - tacts a cam 4I secured to the shaft 42 adjacent
of one of the gripper bars.
to the feed board 43, the grippers are opened to
Fig. 6 is a cross-section on line 6-6 of Fig. 5 receive a sheet 34.
A link 44 is eccentrically pivoted to the gear 40
Fig. '1 is a side elevational view of the feed table.
I1 and at its lower end it is pivoted to a shoe 45
Referring to the illustrative drawings, I is that is slidably mounted on an arm 46 that is
the frame consisting, in the present exemplifi
pivoted at its lower end to a crank 41 secured
cation,-of the uprights 2 and the side members to the shaft 48. A link 49 is pivoted to the crank
45 3 which support the top 4. An opening 5 is 41 and eccentrically pivoted to the intermittent 45
formed in the top in which a platen 6, normally gear 2|. An arm 50 is pivoted to a crank 5I
below the top, is adapted to seat-with its top face secured to the opposite end of the shaft 48 on the
flush with the adjacent surface of Athe top 4. opposite side of the machine. The links 52, 53 are
The platen is hinged at 1 -to the upper side mem
pivoted to the arms 46, 50 respectively and extend
bers 3.
Two chains 8, 9 respectively engage thesprock
ets III, II mounted' on the shaft I2, and they, also
engage two >sprockets I3 on the shaft I4 supported
at the forward end of the frame. Each chain
55 also engages an idler sprocket I5. A pinion I6
forwardly, their forward eñds being loosely 50
mounted on the spindles 54, 55 respectively which
engage respectively in the lower ends of the end
members 56, ,51 of the squeegee carriage 58.
A rod 59 is attached at its lower end to the
shoe 4l and a rack 6I) is secured to the upper end 55
of the rod. The rack slides in the guide bracket
6| which is secured to the arm 46 and the rack
engages a gear 62 mounted on a shaft 63 sup
ported by the bracket 6|. A rod 64 is connected
at one end to the shaft 63 by a. universal coupling
65, a similar coupling 66 connecting the rod 64
to a shaft V61 carried by the bearing 68 mounted
i on the' link 52.
A pinion 69 on the shaft 61
meshes with a segment gear or rack 18. that is
secured to the spindle 54.
The squeegee carriage 58 consists of the end
members 56, 51 and the cross member 1|, having
a suitable weight 12 thereon, ñxed to the upper
ends of said members. Two squeegees 13, 14 are
of the rod 86 is pivoted to one arm of a bell
crank 81 pivoted at 88 to the frame member 2.
A link 89 is pivoted to the other arm of the crank
81 and to the lower end of the hand operated
lever 85. When the lever 85 is rocked as before
described, the rod 86 draws the rod 3| forwardly
or'toward the bell crank 81 thereby swinging the 10
links 38, 32 forwardly to shorten the link distance
between the lever 29 and the platen. 'I‘he platen
thereupon swings downwardly on its pivots and
carrying the sheet 34 with it if one such is on the
adjustably mounted on the cross member 1| by
the collars 15, r16, the squeegees being set atv a
selected angle to each other. The lower edge of`
A shaft 98 is connected to the diiîerential 23
and is connected to a bevelgear 9| that meshes
_with a bevel gear 92 secured to the lower end of
the shaft 93 suitably revolubly mounted on the
each squeegee is _adapted to bear upon the screen
11 which is temporarily fixed in proper position»
20 '
that 'the rails are elevated. This is accomplished
by the rod 86 that is connected to the rod 3| of
the platen elevating devices. The opposite end
on the top_4. The carriage pivots on the spindles
54, 55 so that-` either squeegee may be engaged
on the screen. -The intermittent gears |1, 2|
are so timed in their rotation that the link Y49
and bell cr‘ank 41 will cause the arms 46, 58 to
25 swing and draw the squeegee over the screen.
main frame. A bevel gear 94 on the upper end of 20
the shaft 93 meshes with a bevel gear 95 secured
to the shaft 42 to which shaft the cam 4| is
secured. A second cam 96 is secured to the shaft
42 upon which bears a roller 91 mounted on a
lever 98 that is secured to the shaft 99. A spring 25
|88 tends to retain the engagement of the roller
The stenciling material, such asI paint, is de
posited on the screen’ preferably beyond the pat 'with the cam. ' The levers |8|, |82 are secured
tern, that is, in the- position where the squeegee to the shaft 99 and pivoted to the lower side of
is at the -end of its stroke. The gear |9 is so the feed table 43, each lever having a right an
30 formed and set that the link 44 will' cause the gular projection |83 extending under the said 30
rack carrying rod 59 to reciprocate and cause table. The shaft 98 is rotated at a predeter
the pinion to rotate and swing the segment gear mined speed and causes the cams 4|, 96 to rotate
18 which in turn swings the carriage so as 7to' at said speed. The cam 96 is so formed that it
engage the other squeegee on the screen. In will intermittently permit the lever 98 to rock
35 Fig. l the carriage has completedits _forward upwardly, under the inñuence of the spring |88, 354
stroke. At the time the next' sheet of stock 34 l whereby the levers |8I, |82 are rocked rear
is in position for receiving the impression the~ warolly to tilt the table 43, as shown in Fig. '1.
rack bar 59 will ascend and the pinion 69 will The continued rotation of the cam 96 then de-` cause the rack 18 to rock the carriage, causing presses the lever 98 and the levers |8|, |82 rock
forwardly and not only return the table to a hori 40
40 the squeegee 13 to rise and the squeegee 14 to .l
zontal position but also move it longitudinally
'contact with the screen. The arms 46, 58 im
mediately thereafter cause the carriage to move so that itsy free end will engage andline up the
gripper bar 33 that by this time has come to rest
to the left or rearwardly.
in the loading'position. The spring I 84 assures
Two spindles 18, 19 are fixed to the end mem
45 bers 56, 51.respectively, of the carriage 58` and f. contact of the bar with the guard |85 so that 45
the rollers 88 are mounted on the spindles. These the bar isin proper loading position with respect
rollers _are adapted to engage the rails 8| which to the guides |86, |81 that are adjustably mount
ed on the table 43. 'I‘his movement of the table
are vmounted adjacent to the upper frame mem
bers 3 for longitudinal and upwardmovement. is desirable, since a bar 33 may not always stop
50 Normally the rollers do not. engage the, rails. at the correct point due to 'stretching of the
The railsafford means' by which to elevate the chains 8, 9 or variations therein. Also the ver
carriage and the squeegee when necessary or tical movement of the table clears the gripper
preferable to prevent forcing the stenciling'ma
bar that is approaching the feeding station. The
_ terial- through the screen, as where a sheet fails
throw of the table 43 being uniform it will move
to reach the stenciling station or is not register-_` any bar, that comes to rest short of the correct 55
ing properly at said station. The means for loading position, to that position and line it up,
vmoving the`rails comprises two levers 82 that the slack in_the chains permitting such move
are suitably pivotally mounted on the hangers 83
depending from the upper frame members 3 and
pivotally connected at their upper ends- to the
rear ends ofthe rails. A link y84 is pivoted at
one end to one of the levers 82 and at its opposite
end it is pivoted to a hand operated lever- 85
that is pivotally mounted on one of the uprights
65 2. By rocking the long arm of the lever 85 down
wardly the short arm thereof causes the levers
82 and the rails to swing upwardly and longi
tudinally. The rear end of 4each rail is bevelled
as shown at 83, Fig. 1 and said end engages a.'
sloping surface arranged adjacentV to the frame
vIn the correct loading position of the bar 33 a
sheet of the stockv is inserted _under the grippers 60
35 which are elevated by the lug =39 having con
tacted the cam or abutment 4I. The chains then
carry the bar and its attached sheet 34 to the
impression station under the`screen, the sheet
then contacting the inclinedplaten. - 'I'he bar 33 65
is engaged in the offset |88 in the platen as the
latter rises and is thereby lined up and the spring '
|89 moves the bar against the guard ||8 so that
the bar is properly located at~the imprinting
Any suitable means to receive the imprinted
member 3. The rails as they rise engage the
rollers 88 and elevate the carriage and the 'sheet after it leaves the impression station will..
squeegee is thereby withdrawn from the stencil
suiiìce. In Figs. 1 and >3, I show Va roller ||l
ing material on the screen. `
mounted on the shaft l2 upon which is engaged a
The platen 6 is also lowered at the same time belt | I2 that'also engages a. roller ||3 revolubly -'
mounted on a shaft H3 carried by the main
frame. 'I'he sheet, being held at one end by the
gripper-s on the bar 33 that is moving it, will tend
to sag or drop. The belt will support it and
prevent its contact with any part of the machine,
and when the grippers release it, the belt will
convey it off the machine Where it may be received
or handled in any convenient manner.
What I claim is:
1. A machine of the class described comprising
a stencil, means to support the stencil, a conveyor
of the~feed table and are engaged and alined by
said table, the next stage of movement‘of the
conveyor carrying the bars loaded with the prod
uct to be treated successively above the platen to
an imprinting station, means to rock the platen
upwardly to engage the product on the bottom
of the stencil screen, a squeegee carrier, means
to reciprocate the ' carrier, means to rock the
carrier at the end of each reciprocation whereby
to contact a squeegee with the stencil screen. -
5. In a machine'of the class described the com
having a plurality of spaced gripper-carrying
members thereon each member adapted to engage
bination with a stencil screen, a substance on the
screen suitable for stenciling and means to suc
a sheet of the material to be treated and carry
15 the same beneath the stencil, means to drive the
cessively support sheets of material to be stenciled
conveyor intermittently, 'intermittently actuated
means to support the material in contact with
the lower'side of the stencil and having means
thereon to aline the gripper bars relatively to
the stencil reciprocable means' to force an im
zo printing
substance through the stencil 0n to the
material, said reciprocable means including a
,pair of squeegees and means to alternately en
gage. the squeegees on the stencil.
2. A machine of the class described comprising
a stencil, means to support the stencil, a con
veyor having a. plurality of gripper-carrying
members thereon, each said member being
adapted to engage the material to be treated,
»30 means to intermittently drive the conveyor
' whereby each gripper is moved to a. loading sta
tion, then to an imprinting station under the
stencil and iinally to a discharge station, means
to open the grippers at the loading station and
at the dischargev station, means at the imprint
ing station to cause the Amaterial to firmly en
gage the bottom side of the stencil and adapted
to aline the gripper carrying member relatively
to the stencil screen and reciprocable means to
force an imprinting substance through the sten
cil von to the material said latter means includ
in contact with the screen, of means to force
the substance through the screen and consisting
of a carrier, two >squeegees on the carrier, means
to move the carrier to and fro and means having
connection with the-,carrier to rock the carrier for
alternate gravital engagement of the squeegees 20
with the screen whereby to force the substance
through the screen onto a shee't of material dur
ing each movement of the carrier.
6. In a machine of the class described the com
bination with a stencil screen and means to 25
successively support material to be treated in
contact with the lower surface of the screen of
means to force through the screen a substance
deposited thereon and adapted to pass through
the same, comprising a carrier having two- op
positely inclined squeegees thereon adapted to
alternately engage the screen under the influence
of gravity, intermittently actuated rocking mem
bers having connection with the carrier for mov
ing it back and forth, a reciprocable member 35
carried by one of the rocking members and hav
ing a connection with the carrier to intermittently
rock the carrier and alternately contact the
squeegees with the screen and force the said sub
stance through said screen onto the material dur
ing each movement of the carrier.
ing a squeegee carrier and means to intermit
7. In a machine of the class described, the com
` tently _reciprocate the carrier in opposite direc
bination with astencil screen, and means to suc
tions across the stencil.
cessively support sheets of material to be stenciled
3. A machine of the class described compris-» in contact with the stencil screen, of means to
" ing a stencil screen, means to support the stencil force an imprinting material through the screen
screen, a conveyor having a plurality of gripper and comprising a cross member, two oppositely
carrying-members thereon, means to intermit
tently drive the conveyor whereby the gripper
carrying members are successively moved to a>
50 loading station, to an imprinting station under
the stencil screen and to a discharge station, a
pivotally mounted feed table at the loading sta
tion adapted to engage and aline >each gripper
carrying-member, means at the loading and the
discharge stations to open the grippers, a platen
hinged for movement toward and from the screen
and adapted to aline the gripper bars and a car-rier having two squeegees thereon, means to
inclined squeegees mounted on the cross mem
ber, and dependingmembers rigidly connected to
the opposite ends of the cross member, spindles 50
rigidly engaged in the end members and means
connected to thespindles for reciprocating the
cross member and to cause the squeegees to alter
nately engage the screen.
8. In a machine of the class described, the 55
combination with a stencil screen, and means to
successively support sheets of material in contactwith the screen, of means to force imprinting
material through the screen and comprising a
' intermittently reciprocate the carrier and means ` cross-member two oppositely inclined squeegees
to rock the carrier at the end of each stroke
whereby to
contact , the
y squeegees with the stencil screen.
4. A machine of the .class described comprising
65 a frame, a top carried by the frame and having
an opening therein, a stencil screen secured to
, the'top and extending across the opening, a
-platen hinged to the frame below the top and
_adapted to be swung upwardly to close the said
opening, a pivotally mounted feedl table at the
forward end of the frame, an endless conveyor
having thereon a plurality of transverse »gripper
carrying bars, means to drive the conveyor inter
mittently whereby the said bars `are moved in
75 succession to loading position adjacent to an end
mounted on the cross-member, end members at
tached to the opposite ends of the cross-member
respectively, and depending therefrom, spindles
projecting laterally from the end members re-,
spectively a pair of rocker arms, means to rock
said arms intermittently in opposite directions,
links pivotally connected to the rocker arms and
to the spindles respectively, a rack mounted on
one of the- spindles and means to oscillate the
rack intermittently in opposite directions to cause
the squeegees to be alternately presented to the 70
imprinting material.
9. In a machinel of the class described, the'
combination with a stencil screen and means to
support sheets of material in contact 'with the
screen, -Aof an intermittently driven conveyor to~ from the platen, intermittently operated means '3
carry the sheets to and from. ,the support suc
cessively, and a tilting feed table adjacent to the
conveyor on which the sheets are fed successively
to the conveyor.
Y .
10. In a Amachine of the class described the
combination with a frame, stencil screen attached
to the frame, a platen hingedy to the frame below
to rock the platen toward the screen for con
tacting the sheets'with the'screen, means to apply
a stenciling substance through the screen and
onto the sheets, a hinged feed table adjacent to
the carrier on which the sheets are fed successively
to the carrier and means to intermittently swing
the table into alinement with the conveyor.
the screen, an intermittently operated conveyor
to carry sheets of material successively onto and
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