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Патент USA US2114368

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April 19, 1938-
F. E. BERTRAND
2,114,363
ROUNDING MACHINE
Filed March 16, 19:57
4 sheetsé'shee-z 1
April. 19, 1938.
F. E. BERTRAND
2,114,368
'
ROUNDING MACHINE
Filed Mafch 16, 1937
4 Sheets-Sheet 2
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April 19, 1938.
F‘, E BERTRAND .
ROUNDING MACHINE
Filed March 16, v1937
2,114,368
'
'
4 Sheets-Sheet 3
April 19, 1938.
F. 'E. BERTRAND
ROUNDING
MACHINE
‘Filed March 16, ‘1937
2,114,368
'
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4 Sheets-Sheet 4
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Patented Apr. 19, 1938
2,114,368‘;
UNITED’ STATES PATENT OFFICE
2,114,368
ROUNDING MACHINE
Frederic E. Bertrand, Lynn, Mass, assignor to
United Shoe Machinery Corporation, Paterson,
N. J., a corporation of New Jersey
Application March 16, 1937, Serial No. 131,209
25 Claims. (CI. 12—17)
My invention relates to machines by which
Fig. 6, an enlarged detail in elevation and with
work-pieces, such as soles or insoles for shoes, parts broken away, particularly showing the sec
are produced with the desired peripheral con
tours.
5
I
-
In Letters Patent of the United States No.
2,057,665, Bertrand, October 20, 1936, is disclosed
an apparatus by which an outsole is cut from
sheet-material by one knife, while, simultane
ously, a second knife produces in the material
‘ an incision corresponding in outline to the pe
riphery of an insole.
It is an object of this in
vention to increase the range of sizes to which
a machine of this character is applicable, espe
cially as to large work, the apparatus being e?i
. cient, free from interference and convenient to
operate. To this end, improvements are made
in the actuating mechanism for the knives, two
pivoted arms being employed, one for each knife,
these turning about an axis common to both; a
spring for urging toward the work the knife
upon one of the arms, as the secondary knife or
that for outlining the insole, is carried by an
enclosure for the spring of the other arm, the
connection between the thus-carried spring and
_, its arm being made by an extensible member;
oscillation of the secondary arm about its pivot
and movement of the knife-mounting upon the
arm is controlled by a lever or member shiftable
in a plane substantially parallel to that of the
_ pattern; a handle by which this lever member
may be actuated is movable, as under the in
fluence of a spring, to a normal, inactive position;
effective connections are provided by which the
controlling movement is transmitted from the
35 lever to the knife-mounting; the knife is sup
ported and adjusted by novel means; and said
knife is caused to follow accurately the pattern
through the use of a special link-support for its
block and an auxiliary spring acting upon the
block. While my invention is especially appli
cable to machines in which two knives are em
ployed, it is to be understood that some of its
features may be utilized in single-knife apparatus.
In the accompanying drawings, illustrating one
' of the several possible embodiments of my in
vention,
Fig. 1 is a broken, top plan view of the machine;
Fig. 2, an enlarged, vertical, sectional detail
through the pivotal support for the knife-arms;
Fig. 3, an enlarged detail in elevation, showing
the mounting and controlling means for the sec
ondary knife;
'
Fig. 4, an enlarged vertical sectional detail of
the controlling means for the secondary knife;
Fig. 5, a similar view on the line V—V of Fig. 1;
ondary knife-block and its supporting holder;
Fig. 7 is a perspective view, with the elements
of the holder and the block separated;
Fig. 8, an elevation of one of the block-support
ing links;
5
'
Fig. 9, a top plan view of the holder, and
Fig. 10, a broken, enlarged detail in elevation
of the spring for the secondary arm, together
with its supporting and connecting means.
In Fig. 1, there appears at In the rotary knife
actuating table of the well-known Planet sole
rounding machine with its pivoted member l2,
upon which is movable the slide 14 revoluble
under the in?uence of the table. The primary
arm it with its knife l8 (Fig. 6), which, in the
present apparatus and that of the previously
mentioned patent, produces an outsole, is guided
in its travel resulting from the rotation of the
table by a horizontal pattern 20. This pattern 20
and an opposed insole-pattern 22 are mounted in
a normally stationary position upon the frame
of the machine, being movable relatively to each
other to clamp for the operation upon it a blank
W of sheet-material. The knife-arm l6 turns N) 5
about an upward projection from the slide I4,
this being furnished by a sleeve 24 which sur-v
rounds a pin 26 (Fig. 2). The pin has a head
extending over a secondary arm I9, to which it 30
is secured by screws 28. At its lower extremity,
the pin receives a screw 30, which, by engagement
with the under side of the slide, holds the arm-'
assembly against displacement. The two arms
are thus pivoted one above the other about a
common axis, they acting independently of each
other, presenting the knives advantageously at .
all portions of the peripheries of the patterns and
being equally capable of a wide range of move
ment to provide for the cutting of all‘ sizes of 40
soles and insoles.
Carried upon the slide l4 below the arms I 6
and I9 is a casing, of which the cover 32 is shown
in Fig. 1 and containing the usual‘ spiral spring
34 acting through a pinion 36 and gear-segment 45
38 to urge the knife 18 upon the arm l6 into
active relation to the pattern 20 and to the work.
On the slide l4 beyond the end of the arm I9
is carried a casing 40 containing a spiral spring
#2 attached at its outer end to the casing. This
may be arranged as is best shown in Fig. 10 of
the drawings. Turning upon the slide, in what
may be an extension from the cover 32, is a ver
tical post 44 about which the casing 48 is ro
tatable. The inner extremity of the spring 42
2,114,368
2
is secured to the post. In the upper portion of
the casing is a groove in which is fastened one
end of a cord or cable 46, the other extremity
of which is joined to the arm I9. The force of
the spring is thus applied to urge the free end
of the arm I9 toward the pattern 22, the cord
92.
squared portion 48, through the desired angle,
at which it is retained by a spring-actuated detent
50 pivoted upon the slide and engaging some one
of a plurality of notches formed in the periphery
of a disk 52 fast upon the post. Said post may
15 be more securely ?xed in its adjusted position
by a pin 54 carried by the slide. All these tension
applying members may be so fully removed from
the associated elements that there will be no in
terference, whatever the extent of movement.
At the outer end of the arm I9 are spaced upper
20
and lower branches 56, 56 (Fig. 3), through which
is a bore to receive a stem 58 forming a portion of
a slide which is one element whereby a secondary
or incising knife 60 is moved vertically into and
25 out of engagement with the material W.
To force
the slide down and the knife 80 toward the work,
a spring 62 is contained in a bore in the stem 58,
abutting at its upper end against a bridge-piece 64
rising above the upper arm-branch 56. To lift
30 the slide and thereby free the knife from the work,
a plate 66 fast upon the upper extremity of the
stem has extending downwardly from it a pin or
projection 68 resting upon one arm of a lever 70.
The lever is fulcrumed upon a horizontal spindle
‘I2 and has a second arm of generally U-shape
(Fig. 1) from which rises an extension ‘I4 (Figs.
3 and 4). A horizontal link ‘I6 unites the ex—
tension to one arm of a lever ‘I8 fulcrumed for
horizontal oscillation substantially parallel to the
40 plane of the patterns 20 and 22 about a post 80
' extending upwardly from the arm I6 through a
slot 82 in the arm I9.
A
screw 94 threaded horizontally through the arm
I9 varies the angular position of the carrier~arm
furnishing a ?exible, extensible connection. The
normal tension of the spring 42 may be varied
by rotating the post, as by a wrench applied to a
10
The arm may be adjusted upon the stem in
two directions at right-angles to each other.
A second arm of the lever
‘I8 is furnished by a handle 84. Preferably, the
handle is pivoted upon an upstanding portion of
_ the lever and is normally turned inwardly out
of the way by a spring 06. When the operator
desires to withdraw the knife 60 from the work,
he turns the handle outwardly through 180° and
swings it horizontally to the right, as viewed in
50. Fig. 1. This, through the previously indicated
chain of connections, tilts the lever ‘I0 away from
a stop-screw 88 threaded through the arm I9,
against which it is normally held by the spring 62,
and lifts the slide by engagement with the pin
68. When the point of the knife has been thus
raised above the plane of the material, the plate
68 of the slide contacts with the bridge 64. The
force applied to the handle 84 is now effective
to turn the arm IS anticlockwise about its pivotal
60 axis against the force of the spring 42, so the
secondary knife-carrying elements are separated
from the work by successive vertical and hori
zontal movements. The movement of the handle
carries the arm of the lever to which the link ‘I6
65 is attached past the axis of the post 80, so it is
held until the operator turns it oppositely, thus
freeing the arm I9 to be swung in by the spring
42 and allowing the slide 58, B6 to be lowered with
the knife I50 by the spring 62. Upon release of
the handle by the operator, the spring 88 re
turns it automatically to its normal inward po
sition.
Shown as forming a part of the slide 58, 66 is a
carrier-arm 90 for the knife 60, this arm being
75 normally secured to the stem 58 by a tapered pin
90, and consequently the amount by which the
knife 60 may be caused to lead the knife I8 circumferentially of the patterns in its action upon
the work. It also resists the thrust produced as
the knife 60 makes its cut. A vertical screw 96
is threaded into the carrier-arm and has upon it 10
spaced portions 98, 98 lying at opposite sides of
a lug I00 projecting from the slide-plate 66.
R0
tation of the screw raises or lowers the arm to
provide for a preliminary positioning of the knife
60 with respect to the plane of the work. After 15
these horizontal and vertical adjustments are ef
fected, the arm is ?xed upon the stem by the
pin 92.
Referring particularly to Figs. 3, 6 and '7, the
carrier-arm 90 has pivoted on it to turn about a 20
vertical axis a stem I02 rising from a holder I04.
Guided in the holder between a vertical ?xed wall
I06 and a separable wall I08 is a knife-block III)‘.
In this block, the horizontal shank II2 of the
knife 60 may be fastened in the usual manner. 25
The block is supported upon the holder by a pair
of links H4, H8 to oscillate'toward and from
the pattern 22‘. These links have a width sub
stantially that of the block, and the opposite ex
tremities of each are rounded at I I8 to enter lat 30
erally and be retained by recesses I20 formed in
both the holder and block. Abutting against a
projection I22 from the block and a screw I24
threaded through a plate I26 attached to the outer
end of the holder is a spring I28 urging the block 35
and knife toward the pattern, this spring passing
through an opening I29 in the link H8. The
holder has a face I30 somewhat extended hori
zontally. This, riding upon the periphery of the
pattern, guides the knife 80 through the greater 40
part of its travel and by its horizontal extent
prevents the knife from tilting unduly about a
vertical axis and thereby maintains it in a de?nite
angular relation. This desirable contact-length
will, however, as may be seen upon reference to 45
Fig. 9, bridge across some portions of a pattern, as
at the inside of a hollow shank. Up to this time,
the greater force of the spring 42 will overcome
that of the spring I28, and the effect will be as
though the knife were secured directly in the hold 50
er. When bridging occurs, the spring I28 forces
the rounded end I32 of the block out from the
holder, and causes it and the knife 00 to follow
accurately the concave portion of the pattern.
Adjustable vertically in ways I34 upon the holder 55
I04 is an arm I36 ?xed in place by a slot-and
screw connection i38 and raised and lowered upon
the holder by a screw I40, the head of which
enters a slot I42 in its side. The arm I38 has a
contact-face I44 upon the under side of its inner 60
end, which, resting upon the upper surface of the
work-piece W, limits the downward movement of
the knife 60 and therefore the depth of the inci
sion outlining the insole.
When a rounding operation is to be performed 65
by the machine, the primary arm I'B is found held
in its normal inactive position, as by the usual
latch-lever I46, resisting the force of the spring
34, both knives I8 and 60 being removed from
the patterns 20 and 22. The secondary arm I9 70
is drawn back and retained by the lever ‘I8, with
the mounting-slide 58, 68 and the'intermediate
elements raised, so the knife 60 is above the plane
which the upper face of the work is to occupy.
The patterns 20 and 22 are separated, and be 75
2,114,868
tween them the operator inserts a work-piece W
and clamps it in place. The lead of the-insole
knife 60 or the extent to which it is out of
_ vertical registration with the outsole-knife I8
will have been adjusted by the screw 94, and the
approach of the insole-knife to the material by
the screw 96, each of these varying the position
of the carrier-arm 90 upon the mounting-stem
.58. The arm I6 is released to transfer the knife
10' I8 to its operative position, and the operator
draws the handle 84 forward and turns it clock
wise (Fig. 1) to carry the crank ‘I8 past the
center. This ?rst permits the spring 42 acting
through the cord 46 to draw the arm I9 into its
15 active position, with the knife Ell against the pe
riphery of the pattern 22, and then the spring
62 to lower the mounting until the knife enters
ried by the support and vacting upon‘one arm to
urge its knife toward one of the patterns, and‘
a spring carried by the support and acting upon
the other arm to urge its knifev toward the other
pattern.
' '~
7
5. In combination, a pattern, arms revoluble
about the pattern and movable toward and. from
said pattern about a common axis, aiknife mount
ed upon one of the arms, and a spring carried
by the other arm and acting to urge the knife
intc- co-operation with the pattern. '
‘
6. In combination, two patterns, two arms
revoluble about the patterns and movable to
ward and from respective patterns about‘ an axis
common to both, a knife'mounted upon'each
arm and guided by its pattern, and a spring in
dividual to each arm and acting to urge the
the material ready to produce its out. The ma
chine being started in operation, the table I0 and
20 the other supporting elements cause the travel
knife thereof into cooperation with the pattern,
the springs being supported at the ends of the.
of the two knives about their patterns, so the
points of operation are shifted to form from the
piece W an outsole and to outline insaid piece
'7. In combination, two patterns, a revoluble
support provided with a projection, two. arms
pivoted upon the projection, a knife mounted up
on each arm, the knives being‘ guided by the re-'
spective patterns, a spring carriedlby the sup
25
an insole. At the convex and flatter concave por
tions of the periphery of the pattern 22, the sur
face I3II of the holder I04 acts as a guiding
means for the knife 60, the knife-block IIII be
ing held back with its supporting links H4 and
H6 by the excess of strength of the spring 42
30 over the spring I28. But when more abrupt con
cavities of the pattern interfere with the normal
relation of the holder and knife to the pattern,
the spring I28 urges. the block in beyond the sur
face I39, so its knife is caused to follow the
When the machine stops, the op
35 correct path.
erator reverses his acts above outlined, drawing
forward the handle 84, thus turning the lever ‘I8
to successively lift the knife 60 ‘from the ma
terial and swing out the secondary arm I9, then
40 withdrawing the arm I6 and knife I8.
The
patterns are separated, and the completed work
removed.
Having described my invention, what I claim
as new and desire to secure by Letters Patent of
the United States is:
-
1. In combination, two patterns, a support, two
arms pivoted upon the support about an axis
common to both, a knife mounted upon each arm,
the knives being guided by the respective pat
terns, means for causing movement of the points
of operation of the knives about the patterns, and
means for urging each arm and its knife toward
the corresponding pattern;
2. In combination, two patterns, a revoluble
. support, a pin carried by the support, two arms
surrounding the pin and movable one above the
other upon the support, a knife mounted upon
each arm, the knives being guided by the respec
tive patterns, and a spring individual to each
60 arm for moving its knife toward the correspond
ing pattern.
3. In combination, two patterns, a revoluble
support, a pin rotatable in the support, a sleeve
surrounding the pin, an arm pivoted about the
sleeve, an arm secured to the pin, a knife mount‘
ed upon each arm, the knives being guided by
the respective patterns, and means for urging
each arm and its knife toward the corresponding
pattern.
4. In combination, two patterns, a support
provided with a projection, two arms pivoted up
on the projection, a knife mounted upon each arm
and co-operating with one of the patterns, means
for causing movement of the points of operation
of the knives about the patterns, a spring car
arms.
I
.
-
Y
,.
20;
port and acting to urge one arm and itsknife
toward the pattern, a casing carried by an. en
closure for the spring of the last-mentioned arm,
a spring contained in the casing, and a ?exible
member joining the spring to the other arm.
8. In combination, a pattern, a- pivoted arm
revoluble about the pattern, a knife-mounting
movable upon the arm, a knife carried bythe
30*
mounting‘, means acting upon the‘ arm and
mounting to urge the-knife into active co-operae
tion with the pattern, and‘ a member movable to
control the oscillation of the arm about its pivot‘
and the movement of the ‘knife-mounting upon
the
arm.
'
'
'
>
'
9. In combination, a pattern, a pivoted arm
revoluble about the pattern, a knife-mounting»
movable upon the arm, a knife carried by the
mounting, means actingupon the arm and mount
ing to urge the knife into active co-operation.
with the pattern, and a lever movablein a plane
substantially parallel to the pattern tocontrol
successively the oscillation of the arm about its
pivot and the movement of ‘the' knife-mounting
upon
the
arm.
'
'
'
10. In combination, a pattern, a» pivoted arm .
revoluble about the patternga knife-mounting
movable upon the arm, a knife carried by the
mounting, means acting upon the‘arm and mount
ing to urge‘ the knife into active . con-‘operation
with the pattern, a member movable to control
the oscillation of the arm about its pivot and the
movement of the knife-mounting upon the arm,
and a. handle pivoted upon the member to move
between active and inactive positions. 1'
11. In combination, a pattern, a pivoted'arm
revoluble about the pattern,>a knife-mounting
so
movable upon the arm, a knife carried by the
mounting, means acting upon the ‘arm and
mounting to urge thekm‘fe into active co-opera
tion with the pattern, a member movable to con 65
trol the oscillation of the arm about its pivot and
the movement of the knife-mounting upon the
arm, a handle pivoted upon the member to move
between active and inactive positions, and a
spring urging the handle normally to its inactive 70
position.
.
12. In combination, a horizontal pattern,
means for clamping work against the pattern, a
pivoted arm revoluble about and movable toward
and from the pattern, a knife-mounting mov
2,114,368
4
able upon. the arm to present the knife to the
work and to withdraw it therefrom, a lever ful
crumed upon the arm to move horizontally and
acting upon the mounting to withdraw the knife,
and a member movable horizontally to actuate
the lever,
13. In combination, two patterns, a primary
and a secondary arm revoluble about and piv
oted to oscillate toward and from the respective
10 patterns, a knife carried by the primary arm
and co-operating with its pattern, a knife-mount
ing movable upon the secondary arm, and a
lever fulcrumed upon the primary arm and mov
able to turn the secondary arm about its pivot
15 and to shift the knife-mounting thereon.
14. In combination, two patterns, a primary
and a secondary arm revoluble about and pivoted
to oscillate toward and from the respective pat
terns, a knife carried by the primary arm and
20 co-operating with its pattern, a knife-mounting
movable upon the secondary arm, a post extend
ing from the primary arm through an opening
in the secondary arm, and a lever fulcrumed upon
the post and movable to- turn the secondary arm
25 about its pivot and to shift the knife-mounting
thereon.
15. In combination, a pattern, an arm revolu
ble about and movable toward and from the pat
tern, a slide movable upon the arm, a carrier
30 member mounted to turn upon the slide, means
arranged to ?x the carrier member in different
positions upon the slide, a knife-holder arranged
for pivotal movement upon the carrier member,
and a knife carried by the holder and co-operat
35. ing with the pattern.
16. In combination, a pattern, an arm revolu
ble about and movable toward and from the
pattern, a slide movable upon the arm, a car
rier member mounted to turn upon the slide,
40 means arranged to ?x the carrier member in
different positions upon the slide, means arranged
to limit variably the angular movement of the
carrier member upon the slide, a knife-holder
arranged for pivotal movement upon the carrier
with the extension to raise the plate, and a knife
movable with the plate and co-operating with
the pattern.
19. In combination, a pattern, an arm revolu
ble about and movable toward and from the pat
tern, said arm having an opening, a plate hav
ing a hollow guide-stem slidable in the opening,
there being an extension from the plate, a spring
situated in the stem and acting to urge the plate
downwardly, means contacting with the plate 10
extension to raise the plate, and a knife movable
with the plate and co-operating with the pattern.
20. In combination, a pattern, an arm revolu
ble about and movable toward and from the pat
tern, said arm having an opening, a plate hav 15
ing a guide-stem slidable in the opening, a car
rier member variable in position upon the stem,
2. knife-holder pivoted upon the carrier member,
and a knife carried by the holder and co-operat
ing with the pattern.
20
21. In combination, a pattern, an arm revolu
ble about and movable toward and from the pat
tern, said arm having an opening, a plate hav
ing a guide-stem slidable in the opening, a car—
rier member variable in position upon the stem, 25
at knife-holder pivoted upon the carrier member,
screws carried by the arm and plate and ar
ranged to vary the position of the carrier mem
ber in different directions, and a knife carried
by the holder and co-operating with the pattern. 30
22. In combination, a pattern, an arm ar
ranged to move toward and from the pattern, the
arm and pattern having a relative operating
movement, links mounted to- oscillate upon the
arm, a knife-block pivoted upon the links, a knife 35
?xed in the block, and means for forcing the
block and knife into co-operation with the pat
tern.
23. In combination, a pattern, an arm ar
ranged to move toward and from the pattern, 40
the arm and pattern having a relative operating
movement, links mounted to oscillate upon the
arm, one of the links being provided with an
opening, a knife-block pivoted upon the links, a
_ spring extending through the link-opening and
acting upon the block to urge it toward the pat
co-operating with the pattern.
tern, and a knife ?xed in the block.
17. In combination, a pattern, an arm revolu
24. In combination, a pattern, an arm ar
ble about and movable toward and from the
ranged
to move toward and from the pattern,
pattern, a slide movable upon the arm, a carrier
the arm and pattern having a relative operating
member
mounted
to
turn
upon
the
slide,
means
50
50.
arranged to ?x the carrier member in different movement, a holder mounted upon the arm and
positions upon the slide, means arranged to limit provided with a guideway, a knife-block movable
45 member, and a knife carried by the holder and
variably the angular movement of the carrier
member upon the slide, means arranged to raise
55, and lower the carrier member upon the slide, a
knife-holder arranged for pivotal movement upon
the carrier member, and a knife carried by the
holder and co-operating with the pattern.
18. In combination, a pattern, an arm revolu
60 ble about and movable toward and from the pat
tern, said arm having spaced terminal-portions
in which are alined openings, a plate having a
guide-stem slidable in the openings, there being
an extension from the plate, means contacting
in the guideway, and links pivoted upon the hold
er and supporting the knife-block.
25. In combination, a pattern, a revoluble arm
arranged to move toward and from the pattern,
a holder mounted upon the arm and provided
with a guideway, a knife-block movable in the
guideway, links pivoted upon the holder and sup
porting the knife-block, and a spring interposed 60
between the holder and knife-block to urge the
block toward the pattern.
FREDERIC E. BERTRAND.
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