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Патент USA US3021550

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Feb. 20, 1962
H. c. PAULSEN
3,021,540
OUTSOLE GOUGING MACHINES
Filed. Nov. 2, 1959
5 Sheets-Sheet 1
In van for
Hans C’ Paulserb
Byhis' A ii'orney
Feb. 20, 1962
H. c. PAULSEN
3,021,540
OUTSOLE GOUGING MACHINES
Filed. NOV. 2, 1959
5 Sheets-Sheet 2
Feb. 20, 1962
H. c. PAULSEN
3,021,540
OUTSOLE coucmc MACHINES
Filed NOV. 2, 1959
5 Sheets-Sheet 3
Feb. 20, 1962
H. c. PAULSEN
3,021,540
OUTSOLE GOUGING MACHINES
Filed. Nov. 2, 1959
5 Sheets-Sheet 4
113
Feb. 20, 1962
H. c. PAULSEN
3,021,540
OUTSOLE GOUGING MACHINES
Filed Nov. 2, 1959
5 Sheets-Sheet 5
gmhto
Patented Feb. so, 1962.
2
3,021,54il
GUI‘SQLE GOUGING MACHlNES
Hans C. Paulsen, Lexington, Mass, assignor to United
Shoe Machinery Corporation, Boston, Mass, a cor
poration of New Jersey
Filed Nov. 2, 1959, Ser. No. 850,140
5 Claims. (Cl. ill-27)
ment of the invention selected for purposes of illustration,
said invention being fully disclosed in the following de
scription and claims.
In the drawings,
FIG. 1 shows in perspective an operating head of the
illustrative machine;
FIG. 2 is a left side view, partly in section, of the
upper portion of the machine illustrated in FIG. 1;
This invention relates to improvements in machines for
FIG. 3 is a detail view of a trimming knife used in the
gouging the upper face of a “slab” or sheet rubber com 10 illustrative machine;
position outsole or outsole blank to form in said face a
FIG. 4 is a view, partly in section, on the line lV-IV
groove adapted to receive the overlasted upper of a shoe
of FIG. 2;
to which the outsole is subsequently attached.
FIG. 5 is a view similar to a portion of the showing in
In the manufacture of shoes having thick rubber com
FIG. 4 illustrating the machine in the process of forming
position outsoles it is customary adhesively to» attach a 15 a groove in the upper face of a rubber composition out
premolded outsole to the overlasted bottom of the shoe,
sole;
the upper face of the outsole being premolded to concave
FIG. 6 is a front elevation of the lower portion of the
form in order to receive the slightly convex shoe bottom
illustrative machine and shows power means fordriving
and to insure that in the ?nished shoe the margin portion
outsole feeding mechanism of the machine and also treadle
of the outsole shall “hug” the margin of the shoe bottom 20 means for controlling operation of said mechanism;
to which it is cemented. Premo-lded rubber outsoles such
FIG. 7 shows in perspective a rubber composition out1
as above referred to are expensive and in the manufac
sole or outsole ‘blank which has been grooved by the use
ture of low priced men’s work shoes applicant proposes
of the illustrative machine; and
"
to die or stamp out, from sheets or “mats”'of rubber
FIG. 8 is a perspective view showing a small portion
composition material of substantially uniform thickness, 25 of a shoe to the bottom of which the outsole illustrated
outsoles or outsole blanks which are commonly referred
in FIG. 7 has been attached by the use of adhesive.
to as slab rubber outsoles and which may be substituted
The illustrative machine is described with reference to
for the molded rubber outsoles referred to above. In
‘forming a groove 20 (FIGS. 2, 5, 7 and 8) in the upper
order to insure that the slab rubber outsole, especially
face 22 of a rubber composition outsole or outsole blank
when it is thick, shall readily conform to the shoe bottom 30 24 to prepare said outsole for attachment to the bottom
and may be readily secured to the shoe without any
26 of a shoe 28 (FIG. 8), said groove being equidistant
margin gapping or so-called “?ght” occurring between the
outsole and the shoe bottom, it is proposed to form in the
upper face of the outsole or outsole blank a groove which
from an edge 30 of ‘said outsole and following along said
edge.
It is proposed to die out the outsole 24 from a “ma ”
is spaced slightly from and follows the margin of the 35 (not shown) of thick rubber composition stock. The
outsole of the shoe.
In such a construction the outsole
groove Ztl formed in the outsole serves to receive an
may be effectively attached to the shoe bottom by the
overlasted margin 32 of an upper 34 of the shoe, said
use of adhesives, the margin of the outsole merging at_
overlasted margin ?tting in the groove and forming with
tractively with the margin of the bottom of the shoe.
the outsole a closed, neat appearing marginal joint. Prior
In order quickly and effectively to form in the upper 40 to attaching the outsole 24 to the shoe 28 the overlasted
face of the slab rubber composition outsole or outsole
margin 32 of the shoe upper is roughened, the outsole
blank a groove which extends along and is spaced a uni
thereafter being attached to the shoe bottom by cement
form distance from the margin of the outsole, there is
or other suitable adhesive which has been previously
provided a machine which comprises a rigid work table
applied to the overlasted margin of the upper 34 of the
having a surface adapted to be engaged by an upper face
shoe and also to the bottom and sides of the groove 20.
of the outsole, a ?xed knife having a cutting edge extend
In the-?nished shoe the overlasted margin 32 of the shoe
ing over and spaced from the table, feed wheels project
upper 34» lies in the groove 29 and an “island” 36 sur
ing above the surface of the table at opposite sides re
rounded by the groove normally bears against an insole
spectively thereof and positioned adjacent to opposite
38 of the shoe. The outsole also has a bottom or bottom
ends of the cutting edge of the knife, a pressure roll 50 ‘face 39. The “mat” of rubber composition from which
vadapted to engage a bottom face of the outsole supported
the outsole 24 is stamped or died out may be of uniform
by the table, means for urging the roll yieldingly toward
thickness but preferably has a forepart which is slightly
the table, an edge gage adapted to- be engaged by the
thicker than the shank and heel portion of the outsole,
margin of the outsole on said table, and power means
the ball line of the outsole which is died out beinggem'
for rotating the pressure roll and the feed wheels and thus 55 erally in alinement with a line from which the material
causing the table and the edge gage to guide the outsole
of the mat tapers in thickness to a thickness reduced por
over the table and past the knife as the operator holds
the edge of the outsole against said gage. In order to
facilitate the feeding of the outsole past the knife as
portions of the groove along the toe and heel ends of the
outsole are being formed, the illustrative machine is pro
vided with mechanism controlled by the operator for
stopping the power feed of one of the feed rolls. The
pressure roll is made of yieldable plastic material or of
‘rubber composition and has a portion which is relatively
nonconformable and is arranged opposite one of the feed
tion thereof.
'
I
'
The operating head of the machine is secured to ‘a
bench 40 (FIGS. 1 and 6) by screws 42 and comprises a
main frame 44 (FIGS. 1, 2 and 4). Adjustably secured
to the main frame 44 ‘by screws 46 is a bracket 48 to
which is secured by screws 5!} a ?at horizontal plate or
work table 52. The main frame 44 has also secured to
it by screws 54 a bracket 56, a screw 58 threaded into a
boss of the main frame 44 being provided for assisting in
initially positioning the bracket in its heightwise adjusted
wheels located adjacent to the edge gage, the remaining
position on the main frame and for maintaining this ad—‘
portion of the roll being somewhat conformable and ar
justment.
ranged opposite the table and the other feed wheel.
The bracket 56 is provided with a notch 6t? in which ?ts
The present invention consists in the above features 70 a knife 62having a cutting edge 64 the leading portion
and features hereinafter described, reference being had to
of which is straight and the lateral margins of which are
the accompanying drawings which illustrate one embodi
curved outwardly and backWa-rdly from said leading por—
8,021,540
3
tion as best shown in FIG. 3. The forward lateral por
tions of the knife 62 are provided with bevel faces 62a
the lower ends of which form with a ?at lower face 62b
of the knife lateral cutting edge portions 64a. The cut
ting edge of the knife 62 is included in a plane and may
be said to the U-shaped as viewed in the direction of the
feed of the work.
The knife 62 is provided with a slot 66 having passing
through it a pair of screws 68 which extend through holes
in a clamp plate 70 and are threaded into the bracket 56‘,
the heads of the screws being forced against the upper
face of the clamp plate to hold the knife ?xed in its ini
tially adjusted position in which the central straight line
4
slightly above the rear end of the upper or work support
ing face of said plate and are arranged slightly in ad
vance of the cutting edge of the knife 62.
The pressure roll 84 is keyed to a shaft 128 rotatably
mounted in bearings of a lever 130 secured to the left end
portion of a shaft 132 journaled in bearings supported by
the main frame 44. Secured to the right end portion of
the shaft 132 is a lever 134 having pivotally connected
to it a rod 136 the lower end of which is pivotally con
nected to a tre'adle 138 fulcrumed on the‘ bearing shaft
118. The rod 136 has threaded onto it a nut 142 and
encircling the rod and interposed between the nut and a
wear plate 144 secured to the top of the bench 46 is a
spring 146 adapted constantly to urge the shaft 132 clock
portion of the cutting edge 64 of the knife extends across
and is arranged slightly above a trailing end of vthe ?at 15 wise, as viewed in FIG. 1, and the pressure roll 84 toward
the work table 52, clockwise movement of the lever 134
upper face of the work table 52.
being limited by the engagement of the lever 130 with a
Rotatably mounted in ‘bearings secured to the main
gage roll supporting plate 148 which is adjustably secured
frame 44 is a shaft 72 having keyed to its rear end por
to the main frame 44 and is hereinafter referred to.
tion a sprocket 74 (FIGS. 1 and 4) which is operatively
It will be noted that the unstippled portion of the pres
connected by a chain 76 to a sprocket 78 (FIG. 6) se 20
sure roll (FIG. 4) is relatively hard as compared with the
cured to a shaft 80 rotatably mounted in a reduction gear
' remaining or’ stippled portion of the roll which is rela
box 82 secured to a shelf of the bench 40. ‘
tively soft. In some types of work a design is embossed
Power for driving a feed or pressure roll 84 and ‘auxil
on a portion of the bottom of the outsole spaced a short
iary and main feed wheels 86, 88 hereinafter referred to
is supplied by an electric motor as (FIG. 6) adapted to 25 distance inward from the edge of the outsole. In operat
ing upon hard synthetic rubber outsoles the unstippled
drive through a belt 92, a pulley 94 which, when the ma
right end portion (FIG. 4) of the pressure roll 84 is pref
chine is powered but not operating upon work, rotates
erably made hard in order effectively to cooperate with
idly on a shaft 96 which is journaled in the reduction gear
the main feed wheel 88 in the feeding of the outsole 24
box 82 and in a bearing 98 supported by the bench 40
and which is operatively connected to speed reduction 30 past the knife 62. If the remainiing portion of the pres
sure roll 88 is too hard there is a tendency for the roll
mechanism comprising the shaft 80.
operating against a raised design, which is sometimes
The pulley 94 may be operatively connected for rota
formed on the bottom of the outsole, to depress some
tion with the shaft 96 of the reduction gear box 82 or
portions of the outsole more than others with the result
may be disengaged for rotation on said shaft by the use
of a clutch 180 comprising a friction disk 102 which is 35 that the resultant groove 20 formed in the outsole is not
uniformly deep, the bottom of said groove being undula
secured for rotation with the shaft 96 and is shiftable
tory and accordingly not smooth. In order to avoid this
lengthwise of said shaft as is well known in the "art. The
condition the stippled portion of the pressure roll 84 is
clutch 100 also comprises a disk operating yoke 164 i011!‘
made of material that is somewhat softer than the mate
naled at 106 on the main frame 44 and having operatively
connected to its lower end a bell crank lever 198 mounted 40 rial of the unstippled portion of the roll. During the
groove forming operation the raised design portion of the
on a bearing screw 118 secured to the bench 40. The
yoke 104 is constantly urged clockwise as viewed from
the front of the machine by the coil spring 112 opposite
outsole is embedded in the pressure roll, causing the out
sole to be moved a uniform distance below the cutting
edge of the knife and thus insuring that the groove shall
ends of which are attached to the main frame 44 and to
be uniformly deep and shall have a smooth planar bottom.
the bottom of the yoke 104.
The treadle 138 is depressed preparatory to placing an
The bell crank lever 168 is operatively connected to 45
the upper end of a multipart connector 114 the lower end
outsole on the work table 52 between the pressure roll
84 and the auxiliary and main feed wheels 86, 88, the
edge 30 of the outsole, as it is placed on the feed wheels,
being forced against an edge gage or roll 152 rotatably
multipart connector 114 comprises an L-shaped lug 114a
having in its ?anged lower end a bore 11% for receiving 50 mounted on the above-mentioned plate 148 which is ad
justably secured to the main frame 44 by the use of
slidingly a rod portion 1140 of the connector 114. A
screws 156 which pass through slots 158 formed in the
nut 114d is threaded onto the rod portion 114s of the
plate 148 and are threaded into said frame. The edge
multipart connector 114 and interposed between the nut
gage 152 may be described as being arranged opposite
and a shoulder of the lug is a compression spring 114a.
Secured to the rod portion 1140 of the multipart connec~ 65 the upper peripheral portion of the main feed wheel 88.
The treadle 138 is released once the work has been pre
tor 114 is a block 1141" provided with a bore 114g for re
sented to the machine thereby allowing the pressure roll
ceiving a rod 124} the upper end of which passes through
84 acted upon by the spring 146 to force the outsole 24
a bore in a bell crank lever 124 and has threaded onto
against the work table 52 and the auxiliary and main feed
it a nut 121 bearing against said lever.
of which is pivotally connected to a treadle 116 pivoted
on a bearing shaft 118 secured to the bench 40.
The
The main feed wheel 88 has a sleeve portion 88a pro
vided with an internal frusto conical face 88b. Rotat
ably mounted upon the shaft 72 is the auxiliary feed wheel
60 wheels 86 and 88.
In order that the groove 20 formed
in the outsole 24 shall be equidistant from the edge of
the outsole as the outsole is fed over the table 52 by the
combined action of the pressure roll 84 and the feed
wheels 86, 88, the edge of the outsole as above explained
projection 86:: adapted to inter?t with the internal conical
face 88b of the main feed wheel 88. The auixiliary feed 65 is held forced against the edge gage 152 by the operator.
The stub shaft 128 is operatively connected by a com
wheel 86 is constantly in engagement with a thrust bear
pound universal link 160 to a shaft 162 which is jour
ing 122 rotatable on the shaft 72. In engagement with
86 which has formed integral with it a frusto conical
naled in a bearing of the main frame 44 and has keyed to
the forward end of the thrust bearing 122 is an arm of
it a pinion 164 meshed with a pinion 166 ?xed to the shaft
the bell crank lever 124 which is fulcrumed on a hear
ing pin 126 carried by a bracket secured to and forming 70 72, the construction and arrangement being such that the
pressure roll 84 and the feed wheels 86, 88 have the same
part of the main frame 44 ‘and which, as will be explained
peripheral speeds as they cause the outsole 24 to move
later, controls through mechanism described the opera
past the cutting edge 64 of the knife 62 to form the groove
tion of the auxiliary feed wheel 86. The auxiliary and
20 in the upper face of said outsole.
.main feed wheels 86, 88 straddle the horizontal plate or
work table 52 and have toothed peripheries which extend 75 The rod 120, which is operatively connected to the hell
3,021,546
p1
-
>
-
53
,
6
After the rubber composition outsole 24 has been
thereof, a pressure roll arranged in opposed relation to‘
the feed wheels and the table and adapted to be engaged
by the bottom of the outsole supported by the table and
the feed wheels, means for yieldingly urging the pres
sure roll toward the table and toward the feed wheels,
an edge gage positioned opposite a periphery of the
clamped in the machine by the releasing of the treadle
main feed wheel and adapted to be engaged by the edge
138 the operator fully depresses the treadle 116 causing
the clutch 104} to be engaged and thus starting the pres—
of the outsole which is on the table and is engaged by
the feed roll and the feed wheels, and means for rotat
crank lever 124, passes downward through the bore 114g
formed in the block 114]‘ secured to the lower portion of
a multipart connector 114. Threaded onto the lower end
of the multipart rod 120 is a nut 168 ‘and resting upon the
nut is a spring 170.
sure roll 84 and the auxiliary and main feed wheels 86, 10 ing the pressure roll and the feed wheels and thus causing
the outsole fed by said roll and said wheels to be guided
and 88 rotating as the operator holds the outsole against
the edge gage 1.52 whereby to move the outsole past the
by the edge gage over the table and past the knife as the
knife 62 to form the groove 20 by a gouging cut. It will
operator holds the edge of the outsole against said gage
be noted that when the treadle 116' is substantially fully
whereby to form in the upper surface of the outsole a
depressed to a recognizable point the spring 114:: on the 15 groove which is spaced a uniform distance from the
multipart connector at 114 is compressed and the block
edge of the outsole and follows along said edge, and
114]‘ is forced downward against the spring 17%} and thus
means controlled by the operator for stopping the feeding
yieldingly depresses the multipart rod 126 with the result
rotation of the auxiliary feed wheel while the pressure
that the bell crank lever 124 is rocked slig tly clockwise
roll and the main feed wheel are being rotated during
as viewed in FIG. 4 and accordingly forces the frusto
the forming of portions of the groove along too and heel
conical projection 86a of the feed wheel 86 against the
end portions of the outsole.
frusto conical face 381; of the sleeve portion 38a of the
3. In a machine for preparing a rubber composition
feed wheel 88. The frusto conical projection héa of the
outsole for attachment to a shoe, a rigid work table
auxiliary feed wheel 36, the frusto conical face 88b of the
having a surface adapted to be engaged by an upper
main feed wheel 88 together with the thrust bearing 122
face of the outsole, a ?xed knife having a cutting edge
and the bell crank lever 124 may be described as consti
extending over and spaced from an end portion of said
tuting a friction clutch.
In forming the toe and heel end portions of the groove
surface of the table, main and auxiliary feed wheels pro
jecting slightly beyond the upper surface of the table
at opposite sides respectively thereof, a pressure roll
2% in the upper face 22 of the outsole 24, it has been
found that if the auxiliary feed wheel 86 rotates at the 30 adapted to engage a bottom face of the outsole which is
same speed as the main feed wheel 33 there is a tendency
positioned on the table and is arranged between the pres
for the auxiliary feed wheel to damage the outsole and
sure roll and the feed wheels, means for urging the pres
furthermore that it is difficult sharply to turn the out
sure roll yieldingly toward the table and the feed wheels,
sole. With these considerations in view it is the prac
an edge gage adapted to be engaged by the margin of
tice for the operator to raise the treadle 11d slightly to 35 the outsole on the table and arranged adjacent to the
a recognizable point when forming the toe and heel end
main feed wheel, said pressure roll having a portion
portions of the groove 24) thus releasing pressure of the
which is relatively hard and is arranged opposite the
‘bell crank lever 124 against the thrust bearing 122 with
main feed wheel and having a remaining portion which
the result that the auxiliary feed wheel 86 is not powered
is relatively soft and is arranged opposite the table and
during these portions of the groove forming operation. 40 the auxiliary feed wheel, and means for rotating the pres
It will be noted that when the auxiliary feed Wheel 86 is
sure roll and the feed wheels to cause the outsole forced
inactive during the forming of portions of the groove 2%}
against the edge gage by the operator to be guided over
along the toe and heel ends of the outsole, the action of
the table and past the knife whereby to form in the upper
the knife 62 on the work assists the operator in holding
face of the outsole a groove which is spaced a uniform
the edge 36 of the outsole 24 against the edge gage 152.
distance from the edge of the outsole and extends along
Having thus described my invention, what I claim as 45 said edge.
new and desire to secure by Letters Patent of the United
4. In a machine for preparing a rubber composition
States is:
outsole for attachment to a shoe, a rigid work table
. In a machine for preparing a rubber composition
having a surface adapted to be engaged by an upper
outsole for attachment to a shoe, a rigid work table hav
ing a ‘work supporting surface terminating in an edge and 50 face of the outsole, a fixed knife having a cutting edge
extending over and spaced slightly from the upper face
adapted to be engaged by an upper face of the outsole, a
of the table, main and auxiliary feed wheels projecting
?xed knife having a cutting edge extending along said
above the upper surface of the table at opposite sides
edge of the table and arranged above and spaced from the
respectively of said surface, a pressure roll adapted to
surface of the table to form a gap therewith, feed wheels
projecting above the surface of the table ‘adjacent to the 55 engage the bottom face of the outsole on the table, means
opposite ends respectively of its edge and adjacent to the
opposite ends of the cutting edge of the knife, a pressure
roll adapted to engage a bottom face of the outsole sup
for constantly urging the pressure roll yieldingly toward
said table and the feed wheels, an edge gage arranged
adjacent to the periphery of the main feed wheel and
adapted to be engaged by the edge of the outsole on the
ported ‘by the table and the feed wheels, means for urging
the roll yieldingly toward the table, an edge gage adapted 60 table, a clutch'operatively connecting the auxiliary feed
wheel to the main feed wheel, power means for rotating
to be engaged by the margin of the outsole on said table,
and power means for rotating the pressure roll and the
feed wheels and thus causing the table and the edge gage
to guide the outsole over the table and past the knife as
the pressure roll and the main feed wheel and through
said clutch the auxiliary feed wheel, and means includ
ing a manually operated member for selectively engaging
the operator holds the edge of the outsole against said 65 and disengaging the clutch to render said auxiliary feed
wheel active and inactive respectively.
gage whereby to form in the upper surface of the outsole,
5. In av machine for preparing a rubber composition
outsole for attachment to a shoe, a rigid work table
having a surface adapted to be engaged by an upper
2. In a machine for preparing a rubber composition
outsole for attachment to a shoe, a work table having 70 face of the outsole, a ?xed knife having a cutting edge
extending over and spaced slightly from the upper face
a surface adapted to be engaged by an upper face of the
a groove which is spaced a uniform distance from the
edge of the outsole and follows along said edge.
outsole, a ?xed knife having a‘ cutting edge extending
over and spaced from one end portion of the table, main
of the table, main and auxiliary feed wheels projecting
above said surface of the table at opposite sides respec
tively of said surface, a pressure roll adapted to engage
upper surface of the table at opposite sides respectively 75 the bottom face of the outsole on the table, means for
and auxiliary feed wheels projecting slightly beyond the
M,
.
l
7
3,021,540
constantly urging the roll yieldingly toward the table
and the feed wheels, an edge gage arranged adjacent to
the periphery of the main feed wheel and adapted to be
engaged by the edge of the outsole on the table and on
said feed wheels, a ?rst clutch for operatively connect
ing the auxiliary feed wheel to the main feed wheel,
power means including a second clutch for rotating the
pressure roll and the main teed wheel and, through the
?rst clutch, the auxiliary feed wheel, and means includ
ing a manually operated member movable to a ?rst recog 10
nizable position to cause said second and ?rst clutches
to be engaged whereby to cause the pressure roll and
the main and auxiliary feed members to be rotated to
feed the outsole, which is mounted on the table and is
5
to form a groove in the upper face of the outsole, said
manually operated member being movable to a second
recognizable position in which the second-named clutch
continues to be engaged and accordingly the pressure roll
and the main feed wheel are positively rotated and in
which position the ?rst-named clutch is disengaged and
accordingly the auxiliary feed wheel is not power driven.
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,019,888
1,197,912
Furber ______________ .._ Mar. 12, 1912
Colt ________________ __ Sept. 12, 1916
1,705,586
Ricks ______________ __ Mar. 19, 1929
2,088,765
Seely ________________ __ Aug. 3, 1937
in engagement with the edge gage, lengthwise of its edge 15 2,210,753
Field ________________ __ Aug. 6, 1940
TgYa,r_u.b‘
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