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Патент USA US2130366

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Sept. 20, 1938.
c, H_ PEPIN
2,130,366
WELT HOLD-DOWN FOR SOLE ATTACHING MACHINES
Filed March 4, 1957'
2 Sheets-Sheet 1
Sept. 20, 1938.
c. H. PEPlN
2,130,366
WELT HOLD-DOWN FOR SOLE ATTACHING MACHINES
Filed March 4, 1937
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108
80
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82
2 Sheets-Sheet 2
2,13%,3tii
Patented Sept. 20, 1938
UNETED STATES PATENT OFFIQE
2,130,366
WELT HOLD-DOWN FOR SOLE‘ ATTACH
ING MACHINES
Charles H. Pepin, Beverly, Mass., assignor to
United Shoe Machinery Corporation, Paterson,
N. 3., a corporation of New Jersey
Application March 4, 1937, Serial No. 129,016
10 Glaims. (CI. 12-33)
The above and other features and advantages of
This invention relates to welt holddowns and is
illustrated herein as embodied in an improved
welt holddown for machines used in cement-at
taching soles to shoes.
An object of the invention is to provide an im
proved holddown for the welt or sole extension of
a shoe to the bottom of which sole attaching pres
sure is to be applied, which holddown may be
In accordance with the foregoing, a feature of
the invention comprises a novel, ?exible, welt en
gaging element or member of sui?cient length to
embrace the forepart of the largest shoe to be op
Fig. 4 is an enlarged angular View further il
lustrating a detail of the side support for the welt
vided for the latter requirement by securing the
rubber, as by vulcanization, to a thin layer of
30 strong, ?exible, backing material, such as canvas
or the like, and dividing the rubber, in the region
where sharp bending is desired, into a series of
substantially separate, narrow blocks.
The invention further includes means for sus
taining the ?exible welt engaging member for
movement about adjustable supports and spring
tension means by which its effective length is
yieldingly shortened whenever a shoe is removed,
but accommodates itself automatically to the
4-0 length of any shoe in response to forward pres
sure from the toe of the shoe. As shown, spiral
ly wound springs, of the clock spring type, are
used to draw the ends of the welt engaging mem
ber outward around anti-friction rolls carried at
the ends of ?oating arms, which are also pro
vided with crease plates of restricted area upon
which portions of said member rest and are slid
ably supported.
Preferably the arms are so connected together,‘
50
'
Fig. 21's a view, partly in elevation and partly in
vertical section, upon the line II-—II of Fig. 1,
illustrating a detail of the side support for the
welt supporting member;
standing out, clear of the shoe, so as not to inter
fere with the proper application of the operative,
intermediate, portion of the device. This welt
engaging element may advantageously be made of
rubber su?iciently ?exible to conform to the shoe
but stiff and ?rm enough to sustain the pressure
to which it will be submitted and, therefore, not
adapted to be bent sharply outward. I have pro
n...
with my improved welt holddown;
used with equal facility for operating on various
styles and sizes of shoes, particularly youths’ and
children’s shoes.
erated upon, and capable of being wrapped around
or conformed snugly to only the corresponding
part of the periphery of any smaller shoe, leaving
the surplus end portions of the holddown element
(:1)
the invention will now be described in detail with
reference to the accompanying drawings, in which
Fig. 1 is a plan view of the forward portion of
the pad box of a sole attaching machine equipped 5
by equalizing linkage, that they ?oat easily toward
one side or the other to accommodate the lateral
position of the sole and shoe upon the pad while
preserving substantially unchanged the spaced re
lation to which they have been set for shoes of
that width.
10
Fig. 3 is a view in front elevation of the appara
tus shown in Fig. 1; and
supporting member.
The welt holddown apparatus of my present in
vention is illustrated herein as applied to a cement
sole attaching machine having a pad box of the
type disclosed in United States Letters Patent No.
2,049,453, granted August 4, 1936, upon an appli 20
cation ?led in the names of Frank Kennison
et a1. Accordingly, the main casting I0 of the pad
box is shown as similar to that designated by the
same numeral in the said patent, as is also the
slidably mounted mask plate 82 upon which are
formed rack teeth 90 engaged by pinions 86 and 81
operated by a hand wheel 92.
Fixedly mounted in the mask plate 82, and mov
able therewith, are vertical pivots l2 and I4 upon
which are journaled swinging arms l6 and 18, re- E,
spectively.
Since these arms are approximately -
symmetrically arranged with respect to the longi
tudinal axis of the pad box and the parts carried
and operated by them are substantially alike, it
will su?‘ice to describe in complete detail the ar- l
rangement of the parts at one side of the pad box. ‘
Mounted upon a horizontal pivot 20 carried by
the arm It or I 8, as the case may be, is a support
ing arm 22 which is sustained in a raised position
by a torsion spring 24 surrounding the pivot, the 1,10
limit of elevation of the supporting arm being determined adjustably by a stop screw 26.
'
‘
In the outer portion of the arm 22 there is pro
vided a horizontal bore to receive a cylindrical pin
28 which is integral with a block 30, Figs. 1 and 4.
A ?at leaf spring 32 secured to the supporting arm
22 by a screw 84 bears yieldingly upon
face of
the block 30, permitting the block to turn some
what about the axis of the pin 28 when rotative
force is applied.
J ournaled upon a vertical pin 36 secured in
the block 38 are anti-friction rolls 38 for en
gagement with the outer face of the welt support
ing member and also movable about the axis of
the pin 36 is a bracket 48 having a projecting ,
2
2,130,366
?ange 42 which is sustained in a slot 44 in the‘
block 30. A pull spring 46, one end of which is
attached to a pin 48 ?xed in the bracket 48 and
through the other end of which passes a rod 58
lying in a groove 52 formed in the face of the
block 38. tends to keep the bracket 48 turned in
a clockwise direction as it is looked down upon
but permits it to turn in the opposite direction
to allow a crease plate 54, secured to the under
10 side of the bracket 40' by screws 56, to accommo
Since the entire welt holddown apparatus is
mounted upon the mask plate slide 82, it may be
adjusted as a whole, longitudinally of the pad, by l0
turning the hand wheel 92 and it will normally
by it.
The crease plate 54 serves to sustain a U
be so adjusted that the rolls 38, about which the
surplus end portions of the welt supporting mem
shaped, ?exible, rubber welt supporting member
ber are bent outward away from the shoe, are in
58. This welt supporting member is adapted to
be conformed to the forepart of a shoe, as shown
particularly in Fig. l, and is secured permanently,
as by vulcanization, to a backing strip 60 of ?ex
20 ible material such as fabric or the like, which is
substantially inextensible. The welt supporting
member 58 is not secured to the crease plate 54
which sustains it, but merely rests upon the crease
plate and is freely movable over the same, the
backing strip 60 engaging and being supported
and guided by the rolls 38 at the point where the
welt supporting member is bent outward away
from the shoe.
Although sufficiently ?exible to conform readily
30 to the contour of the forepart of a shoe, the rub
ber or equivalent material of which the member
58 is made must be ?rm and stiff enough to sus
tain the pressure to be applied to the welt of the
shoe and consequently‘ cannot be bent sharply
35 outward, substantially at right angles, around the
rolls 38 unless special provision is made for per
mitting such bending. This is accomplished by
making the end portions of the member 58, where
they have to be bent outward, of a series of sub
40 stantially separate, narrow blocks of rubber se
cured to the backing strip 60. These blocks may
be entirely separate or may be integral with the
toe portion of the member 58 with such deep
slashes between the blocks that only a thin web
45
of the backing strip 60 on the outside of the welt
supporting member 58 with the shoe gages 280
and 282, which are identical with those designated
by the same reference numerals in the Kennison
et a1. patent, hereinbefore referred to, and which
have previously been set and locked in position.
date itself to the welt crease of a shoe engaged
15 indicated in its entirety by the reference numeral
25
movement of the shoe is stopped by engagement
of connecting material remains.
v
I
In order to insure the outward bending of the
ends of the welt supporting member 58 at all times
around the side supporting rolls 38, outward ten
sion is continuously exerted upon their extremi
50 ties by spiral springs 64 of the clock spring-type.
The supporting arm 22 is slotted, as shown at
66, to receive the spring 64, the inner end of
which is bent sharply inward and maintained in
a slot in a pin 68 held in the arm 22 and prevented
55 from turning by a cotter pin ‘II! which pass-es
through the slot in the said pin 68, as best shown
in Fig. 2. By removing the cotter pin, the pin 88,
which has a screw driver slot in its head, may be
turned to wind the spring 64 to the desired ten
60 sion, whereupon the cotter pin is replaced.
, The toe part of the welt supporting member 58
is secured at ‘I2 to a slidable toe supporting plate
74 which is freely movable upon the mask plate
82 longitudinally of the pad P between limits de~
65 ermined by a slot ‘I6 in the plate, through which
passes a stationary pin 18.
When there is no shoe upon the pad the springs
84 will draw the ends of the member 58 outward
and pull the toe supporting plate "f4 rearward
70 over'the pad until the limit of its movement is
reached. When the toe of a shoe is placed against
the toe part of the member 58 and pushed for
ward, the ?exible end portions of said member
will be pulled around the rolls 38 to conform pro~
gressively to the forepart of the shoe until forward
register with the ball line portion of the pad P. 15
The above described action of the welt holddown
mechanism will then permit the holddown to
conform. properly to the foreparts of shoes of
various sizes, all of which are positioned with their
ball lines at about the same place upon the pad. 20
The positioning of the arms I6, I8 and the side
supports carried thereby is effected by mechanism
which will now be described.
An equalizer 88, which is arranged transversely
of the pad box, is connected by links Ill!) and I82 25
to the arms I6 and I8, respectively. The center
of the equalizer is pivoted at I84 to a lever I 86
which is in turn pivoted at I88 to a bracket IIEJ
?xedly secured to the mask plate 82. Near the
free end of the lever I06, which is under the in 30
?uence of a pull-spring IIZ tending to draw it
toward the rear of the pad box, a screw H4 is
pivoted at I IE to the said lever. This screw
passes freely through an opening in a bracket
H8 ?xedly secured to the mask plate 82 and has
threaded upon its outer portion an adjusting nut
I28, by which the lever I05 can be adjusted,
against the tension of the spring H2.
By inspecting Fig. 1 of the drawings, it will be
apparent that rearward adjustment of the lever
I88 will move the equalizer 8B rearward and will
consequently, by swinging the arms I6, I8, move
the supporting rolls 33 at the opposite sides of the
shoe toward each other, while adjustment of the
lever I85 forwardly will produce the opposite ef
fect. It is to be noted that, with any given ad
justment, the spacing between the rolls 38 at op
posite sides of the shoe is substantially preserved
by reason of the then stationary condition of
the pivot I04 although the equalizer and link
connections permit them to be moved together in
either direction transverse to the pad, to accom
modate the position of the welt supporting mem
ber 58 to the transverse position of the shoe upon
the pad.
Shown in Fig. 3 are the toe pad I 22 and the
pressure member I24 for applying downward pres
sure to‘ the toe portion of the shoe and the welt
holddown, respectively, which are not of my in
vention but are commonly used in sole attaching
machines of the type to which my novel welt
35
40
45
50
55
60
holddown is shown as applied.
Having described my invention, what is claimed
as new and is desired to be secured by Letters
Patent is:
65
1. In a welt holddown, a U-shaped rubber welt
supporting member capable of conforming to
the forepart of a shoe, the end portions of said
member comprising substantially separate blocks
of rubber, and a ?exible backing strip to which 70
said member, including the blocks, is secured.
2. In a welt’ holddown, a U-shaped, ?exible,
welt supporting member capable of conforming
to the forepart of a shoe, the end portions of said
member each comprising a series of substantial
75
2,130,366
3
ly separate blocks of material, and a ?exible back
ing strip of inextensible material to which said
erting a continuous outward pull upon the ex
tremities of said member.
member, including the blocks, is secured.
'7. A welt holddown comprising a ?exible, welt
supporting member, spaced supports upon which
3. A welt holddown comprising a U-shaped ?ex
ible, welt supporting member capable of conform
ing to the forepart of a shoe and having end por
tions capable of being bent outward away from
the shoe, supporting means for the toe part of
said member, supporting means for the end por
10 tions of said member at the points where they
are bent outward, and means for continuously
exerting an outward pull upon the extremities
of said member.
4. A Welt holddown comprising a ?exible, welt
15 supporting member capable of conforming to the
forepart of a shoe and having an end portion bent
outward away from the shoe, and a spiral spring
of the clock spring type connected to said end
portion and exerting an outward pull thereon.
5. A welt holddown comprising a U-shaped,
20
?exible, welt supporting member capable of con
forming to the forepart of a shoe and having
end portions capable of being bent outward away
from the shoe, means slidable longitudinally of
25 the shoe for supporting the toe part of said mem
ber, supporting means over which said end por
said member is movably sustained, rolls upon the
supports around which said member is guided
with its extremities extending away from each
other, and springs exerting a continuous outward
pull upon the extremities of said member.
8. In a sole attaching machine, a sole support
ing pad, a pair of side supports disposed above
the pad at the ball line thereof, a toe support dis
posed above the pad in front of the ball line and
movable longitudinally of the pad, a ?exible welt
supporting member having its central portion se
cured to the movable toe support and its end por
tions sustained by, but not secured to, the side
supports, and means for bending the ends of said
?exible member outward at the side supports and
exerting a pull in opposite directions upon their
respective extremities.
9. A welt holddown comprising a pair of ?xed
pivots, a pair of bell cranks supported to swing
respectively about said pivots, a U-shaped welt
support sustained by an arm of each of the bell
cranks, links extending from the other arms of
tions are movable at the points where they are
bent outward, and means for exerting a yielding
outward pull upon the extremities of said mem
the bell cranks, a transverse equalizer connecting
the links, and means for moving the equalizer
longitudinally of the welt support to vary the
ber.
width thereof.
30
.
6. A welt holddown comprising spaced supports
adjustable to the width of a shoe to be operated
upon, a ?exible welt supporting member movably
sustained by and between said supports with its
extremities extending outwardly, and springs ex
5
10
15
20
25
30
10. A welt holddown comprising a thin plate
adapted to enter the welt crease of a shoe and
a ?exible welt supporting member resting upon
the plate and movable over the same.
CHARLES H. PEPIN.
35
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