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Патент USA US2117328

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May 17, 1938.
A. E. JERRAM '
2,117,328
SHOE BOTTOM PRESSING MACHINE
Filed April 21, 1957
5 Sheets-Sheet 1
May 17, 1938.
A. E. JERRAM
2,117,328
SHOE BOTTOM PRESSING MACHINE
Filed April 21, 1937
5 Sheets-Sheet 2
May 17, 1938.
A, E. JERRAM
"
2,117,328
SHOE BOTTOM PRESSING MACHINE
Filed April 21, 1937
'
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46
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$5
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Patented May 17, 1938
2,117,328
UNITED STATES PATENT OFFICE
2,117,328
SHOE BOTTOM PRESSING MACHINE
Arthur Ernest Jerram, Leicester, England, as
signor to United Shoe Machinery Corporation,
Paterson, N. .L, a corporation of New Jersey
Application April 21, 1937, Serial No. 138,200
In Great Britain May 15, 1936
9 Claims.
This invention relates to machines for shaping
the bottoms of shoes and is herein illustrated as
embodied in a machine of the type disclosed in
Letters Patent of. the United States No. 1,275,562,
granted August 13, 1918, upon an application of
A. E. Jerram and J .' Gouldbourn, although it will
be understood that the invention is not thus
limited in its applicability.
Machines of the type illustrated in the above
ll) mentioned Letters Patent comprise in their
organization a pressing form shaped to conform
approximately but preferably not precisely to the
desired lengthwise curvature of a shoe bottom,
and a shoe support which is rocked relatively to
the form in opposite directions about an axis
extending laterally of the shoe and located sub
stantially at the tread surface of the sole of a
shoe on the support. The pressing form is moved
toward the support to press upon the shoe by a
20 carrier which maintains the form in pressure
applying position as the support is rocked rela
tively to the form, thus causing the shaping or
leveling pressure to be applied progressively along
the bottom of the shoe in directions lengthwise
of the shoe. While such machines have been in
successful commercial use for many years, it has
been found in operating upon some kinds of shoes,
especially women’s shoes mounted on lasts de
signed to accommodate comparatively high heels,
that it is sometimes difiicult to impart to the sole
the desired transverse curvature particularly if
there are irregularities in the sole, such as
bunches caused by the unevenness of shoe mate
rials between the outsole and the insole. The
bottoms of such shoes usually have pronounced
transverse curvatures so that any such irregu
larities tend to prevent the form from engaging
the sole for its entire width in locations where the
irregularities have developed in the sole and as a
result the desired transverse curvature is not im
parted to the sole in those locations. In operat
ing upon shoes of this kind it has been found that
by transferring the leveling pressure progressive
1y to different portions of the sole successively in
directions both lengthwise and widthwise of the
shoe all portions of the shoe sole will be properly
leveled regardless of such small irregularities as
may exist in the sole. Accordingly, it is an object
of ‘the present invention to provide improved
means for accomplishing that result. For the
purpose in view the present invention, in one im
portant aspect, provides novel means for impart
ing to the pressing form rocking movements in
directions laterally of the shoe in the course of
55 the leveling operation. In the construction
shown the pressing form is secured to a segmental
member which is mounted in the carrier for tip
ping movements about an axis extending length
wise of the shoe and located approximately at
the toe end and heel seat contacting faces of the
form. For imparting to the segmental member
its tipping movements about this axis there is
provided a rotatable eccentric which is connected
by means of a link to an upwardly extending arm
on the segmental member. As the form is thus ,
rocked laterally of the shoe by the tipping of the
segmental member it is caused to apply substan
tial pressure at any one time‘ to a portion only
of the width of the sole but to transfer such pres
sure successively to different portions of the sole
in directions widthwise of the shoe as the pres
sure is also applied progressively along the bottom
of. the. shoe from the heel end forwardly to the
toe end and from the toe end rearwardly to the
heel end in response to the rocking movements ‘of 20
the shoe support. Preferably the rate of speed
at which the segmental member is tipped in di
rections laterally of the shoe is different from the
rate of speed at which the shoe support is rocked
in directions lengthwise of the shoe to cause the 25
pressing form to treat different portions of the
shoe bottom widthwise of the shoe in successive
rocking movements of the support, thus insuring
that all portions of the shoe bottom will be
properly leveled and that the desired transverse
curvatures will be imparted to the sole.
The invention in its different novel aspects will
now be more particularly described by reference
to the accompanying drawings and thereafter
pointed out in the claims.
35
In the drawings,
Fig. 1 is a view in side elevation of a machine in
which the present invention is embodied;
Fig. 2 is a section on the line II--II of Fig. l;
and
40
Fig. ‘3 is a section on the line III—III of Fig. 2.
' Since the general organization of a machine of
the type illustrated is fully shown and described
in the prior Letters Patent above-mentioned, only
such parts of the machine as it is necessary par 45
ticularly to refer to for an understanding of the
invention are herein shown and will be described
in detail.
Machines of the type illustrated in the above
mentioned Letters Patent are each provided with 50
a pair of shoe supports or jacks Ill, l2 and co
operating pressing forms l4, [6 (Fig. 2). Each
jack comprises a support l8 for an iron last or
foot 20, the support l8 being slidably mounted in
a carrier 22 supported by links 24, 26. Each sup
2
2,117,328
port [8 is seated on a collar 9 fast on the upper
end of a rod II having formed on its opposite
end a hexagon head for turning the rod. Sur
rounding the rod l I between a member I3 thread
ed on the rod and a member l5 engaging the head
of the rod and a shoulder I? on the carrier is a
stiff compression spring l9 against the resistance
of which the support is depressible in response to
pressure applied to the bottom of a shoe on the
10 last 20. Each jack is swung about its pivotal con
nection with the link 24 from a substantially
vertical work receiving position into an inclined
leveling position and is connected independently
to operating mechanism for rocking it about an
15 axis extending widthwise of the shoe and located
substantially in the tread surface of the sole to
cause the leveling pressure to be applied pro
gressively along the bottom of the shoe. The
mechanism for rocking the jack comprises a bell
20 crank lever 2i pivotally connected at 23 to the
machine frame 25 and having a pin and slot con
nection 27 with the link 26. The bell-crank lever
25 is swung in opposite directions to impart rock
ing movements to the jack through a'link 29 by
25 cam-controlled means not herein shown since it
is fully disclosed in the prior Letters Patent No.
1,275,562. The pressing forms l4, 16 which are
shaped approximately to conform to the desired
contour of the bottom of. a shoe are mounted in a
30 manner more particularly hereinafter described
on a carrier 28 which is fulcrumed at 30 to the
machine frame 25. As each jack is moved from
its Work receiving position into an inclined level
ing position the carrier 28 is swung in a direction
35 to move the cooperating pressing form heightwise
of the shoe toward the jack by the straightening
of a toggle lever 34 which is operated by suitable
crank mechanism, not herein shown, since it is
substantially the same as that shown in the prior
Letters Patent above-mentioned. In the machine
herein illustrated each jack may yield under ex
cessive pressure against the resistance of the
spring l9 (Fig. 1) as its cooperating form is
moved into position to press the bottom of a shoe
on the jack by the straightening of. the toggle
lever 34. It will be understood that the pressing
form remains in pressure~applying position
during the rocking movements of the jack, thus
causing what is substantially a direct pressure to
50 be applied successively to limited areas of the sole
progressively from the heel end forwardly to the
toe end and from the toe end rearwardly to the
heel end, after which at the end of the leveling
operation the pressing form is moved out of en
55 gagement with the shoe as the jack is swung into
work-receiving position.
g;
For purposes of the present invention the illus
trated machine is provided with means for im—
parting to the pressing forms rocking movements
60 laterally of the shoe in the course of the leveling
operation. In the construction shown, the forms
I4, [6 are respectively secured to segmental mem
bers 36, 38 (Fig. 2) each of which is supported
on the carrier 28 by ?anged plates 40 fastened to
65 the carrier by screws 42 (Fig. 3). Each seg
mental member has formed thereon an arcuate
face 44 engaging roller bearings 46 housed in and
spaced by cages 48 which are retained in place
on the carrier by plates 50 secured to the carrier
70 by screws 52. Preferably, the arcuate face 44 of
each segmental member is concentric with a line
or axis parallel to the longitudinal median line of
its associated form, this axis being located ap
proximately at the toe end and heel seat con
tacting faces of the form. The segmental mem
bers 36, 38 are provided respectively with arms
54, 56 which are connected at their upper ends
by inwardly extending links 58, 60 to a shaft 62
having keyed thereto an eccentric bushing 64
which forms a bearing for the inner ends of the
links 58, 60. The shaft 62 is mounted in suitable
bearings in the carrier 28 in parallel relation to
and intermediate between the axes of the seg
mental members 36, 38.
For rotating the shaft
62 and the eccentric 54 to impart tipping move 10
ments laterally of the shoe to the segmental
members 38, 38 to rock the forms l4, I6, there is
fast to the shaft 62 a beveled gear 66, the teeth
of which are engaged by the teeth of a beveled
pinion 68 fast to the inner end of a shaft 10 15
rotatably mounted in the carrier 28. Fast to the
outer end of the shaft ‘it is a gear 12 meshing
with a pinion 14 fast to a shaft 16 rotatably
mounted in the carrier 28 and having fast on its
outer end a pulley 18 driven continuously through 20
a belt 8i] by a motor 82 mounted on the frame 25
(Fig. 1). Preferably and as shown, the eccen
tricity of the bushing 64 is such as to cause the
segmental members to be rocked laterally of the
shoe through a comparatively small angle.
25
As previously explained, each segmental mem
ber is supported on the carrier by ?anged plates
41%. The plates 46 are each provided with a
tongue 84 (Fig. 3) engaging an arcuate slot 86
formed in the end face of its associated segmental 30
member concentric with the axis about which the
segmental member is rocked laterally of the shoe.
To support each segmental member against end
wise thrust as its cooperating jack is rocked in
directions lengthwise of the shoe there is pro 35
vided a ball bearing 88 engaging the inner faces
96 of a pair of arcuate ribs 9| on the segmental
member, the inner race 92 of the ball bearing
being mounted on a stud 94 fast in the carrier 28.
From the above description it will be evident 40
that as each jack is rocked in directions length
wise of the shoe rocking movements laterally of
the shoe are imparted to its associated pressing
form. The pressing form is thus caused to press
at any one time forcibly on a portion only of the 45
width of the sole but to transfer its pressure suc
cessively to different portions of the sole Width
wise of the shoe as the leveling pressure is applied
progressively along the bottom of the shoe from
the heel end forwardly to the toe end and from 50
the toe end rearwardly to the heel end. Prefer
ably the number of rocking movements imparted
to the pressing form should not be equal to or
an exact multiple of the number of longitudinal
rocking movements imparted to the jack in order 55
that the path traced on the shoe sole by the sole
pressing face of. the form will differ during suc
cessive longitudinal rocking movements of the
jack. The pressing form is accordingly rocked
at a different rate of speed from the rate of speed 60
of rocking movement of the jack, the rate of speed
of rocking movement of the form being such as to
insure that all portions of the shoe bottom will be
properly leveled. It will be understood that in
operating upon shoes of different styles the num 65
ber of rocking movements imparted to the form
may be varied by varying its rate of speed as may
be necessary to cause the leveling pressure to be
applied to all portions of the bottom of the shoe
70
being operated upon.
Having described my invention, what I claim
as new and desire to secure by Letters Patent of
the United States is:
1. A machine for shaping or leveling the bot
toms of shoes having, in combination, a sole- 75
2,117,328
pressing form shaped to conform approximately
to the desired lengthwise curvature of a shoe
bottom and a shoe support relatively movable
about different axes located approximately at the
tread’surface of the sole of a shoe on said sup
port to apply leveling pressure progressively to.
different portions of the sole successively in di
rections both lengthwise and widthwise of the
shoe.
2. A machine for shaping or leveling the bot
10
toms of shoes having, in combination, a shoe sup
port, a sole-pressing form shaped to conform ap~
proximately to the desired lengthwise curvature
of a shoe bottom for applying pressure progres
15 sively to the sole of a shoe on said support length
wise thereof between its toe and heel ends in re
sponse to rocking movements of said support
relatively to said form, and mechanism for rock
ing the form laterally of the shoe to cause the
20 form to apply substantial pressure at any one
time on a portion only of the width of the sole
but to transfer such pressure successively to dif
ferent portions of the sole in directions widthwise
of the shoe in the course of the rocking move
25 ment of the support.
3. In a machine for shaping or leveling the
bottoms of shoes, the combination with a sole
pressing form shaped to conform approximately
to the desired lengthwise curvature of a shoe
30 bottom, and a shoe support movable relatively to
said form about an axis extending widthwise of’
the shoe and located substantially at the tread
surface of the sole of a shoe on said support to
cause the form to press on different portions of
35 the sole successively from the heel end forwardly
to the toe end and from the toe end rearwardly
to the heel end, of mechanism for rocking the
form laterally of the shoe to transfer the leveling
pressure progressively to different portions of
40 the sole widthwise of the shoe in the course of the
rocking movement of the support.
4. A machine for shaping or leveling the bot
toms of shoes having, in combination, ‘a shoe
support, a sole-pressing form shaped to conform
45 approximately to the desired lengthwise curva
ture of a shoe bottom for applying pressure
progressively to different portions of the sole of a
shoe on said support in response to rocking move
ments of said support relatively to the form about
50 an axis extending widthwise of the shoe, and
mechanism for moving the form relatively to said
support into position to apply pressure to the
shoe sole and for imparting to the form when in
pressure-applying position a plurality of rocking
55 movements laterally of the shoe about an axis
extending lengthwise of the shoe.
3
progressively along the bottom of a shoe on said
support in response to rocking movements of the
support relatively to the form about an axis ex
tending laterally of the shoe, a carrier movable
heightwise of the shoe to press the form upon the
shoe, said form being mounted on the carrier for
rocking movements laterally of the shoe about an
axis extending lengthwise of the shoe and located
approximately at the toe end and heel seat faces
of the form, and mechanism on said carrier for 10
imparting to the sole-pressing form in the course
of the leveling operation a plurality of rocking
movements about said axis to cause the leveling
pressure to be applied successively to different
portions of the shoe sole widthwise of the shoe.
7. A machine for applying shaping or leveling
pressure to the bottoms of shoes having, in com
bination, a shoe support, a form for applying
pressure to the bottom of a shoe on said support,
said form having a pressing face shaped to con
form approximately to the desired contour of a
shoe bottom, means for rocking the shoe support
relatively to the pressing form at one rate of
speed in directions lengthwise of the shoe to cause
the leveling pressure to be applied progressively 25
along the bottom of the shoe, and mechanism
for rocking the form laterally of the shoe at a
different rate of speed from the support to cause
the form to treat di?erent portions of the shoe
bottom widthwise of the shoe in successive rocking
movements of the support.
8. A machine for shaping or leveling the bot
toms of shoes having, in combination, a shoe sup
port, a sole-pressing form for applying pressure
progressively along the bottom of a shoe on said 35
support in response to rocking movements of the
support in directions lengthwise of the shoe, and
means for moving the form relatively to the sup
port into pressure applying position and for im
parting to the form rocking movements lateral
ly of the shoe, said means comprising a segmental
member, a carrier for moving the segmental
member toward the shoe to press the form upon
the shoe, said segmental member being mounted
on said carrier for tipping movements about an
axis extending lengthwise of the shoe and lo—
cated approximately at the toe end and heel seat
contacting faces of the form, and a rotatable ec
centric for imparting to the segmental member
its tipping movements.
9. A machine for applying shaping or leveling
pressure to the bottoms of shoes having, in com
bination, a shoe support, a pressing form shaped
to conform approximately to the desired contour ‘
shoe bottom for applying pressure progressively
of a shoe bottom for applying leveling pressure
progressively along the bottom of a shoe on said
support in response to rocking movement of said
support in directions lengthwise of the shoe, a
carrier movable heightwise of the shoe for
pressing the form upon the shoe, and means on
the carrrier for supporting the form and for im
along the bottom of a shoe on said support in re
parting to it rocking movements laterally of the
5. In a machine for applying pressure to the
bottoms of shoes, in combination, a shoe support,
a sole-pressing form shaped to conform approxi
60 mately to the desired lengthwise curvature of a
sponse to rocking movements of the support rela—
tively to the form in directions lengthwise of the
65 shoe, a carrier movable heightwise of the shoe to
press the form upon the shoe, and mechanism on
said carrier for rocking the form laterally of the
shoe to cause the form to press successively on dif
ferent portions of the shoe bottom widthwise of
70 the shoe.
6. In a machine for applying pressure to the
bottoms of shoes, in combination, a shoe sup
port, a so1e~pressing form for applying pressure
40
shoe in the course of the leveling operation, said
means comprising a member having an arcuate
face concentric with an axis extending lengthwise 65
of the shoe and located approximately at the toe
end and heel seat contacting faces of the form,
a rotatable eccentric connected to said mem
ber for imparting to the member tipping move
ments laterally of the shoe, and a plurality of
rolls on the carrier for engaging said member
and for guiding its movements about said axis.
ARTHUR ERNEST JERRAM.
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