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Патент USA US2048048

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July 21, 1936.
F L AYERS
2,048,048‘
SHOEMAKING
'
Filed Nov. 9, 1932
.
2 Sheets-Sheet 2
@3270?’
5k 776%@611’
f
I
atented July 21, 1936
2,048,048
SHOE ‘a
Fred L. Ayers, Watertown, Mass, assignor, by
mesne assignments, to United Shoe Machinery
Corporation, Paterson, N. 3., a corporation of
Massachusetts
Application November 9, 1932, sens! No. 641,850
6
Lain: g,
This invention relates to the art of shoe-mak
' ing and more particularly to that ?eld of shoe
making wherein an insole is used as the part to
which the marginal portion of the shoe upper is
attached while on the last. Thus, in making so
called cement-process shoes and in making Mc
Kay, welt, and other shoes, it is the practice to
‘ attach the marginal portion or the shoe upper to
the insole. In order to realize satisfactory at
10 tachment of the shoe upper to the insole, it is
necessary to use an insole of substantial thick
ness, even though such qualities as ?exibility and
light weight, frequently desired in the fore part
of the shoe, have to be sacri?ced.
it;
In accordance with the present invention, the
marginal portion of the shoe upper is attached as
ordinarily to the insole,- but, after such attach
ment has been effected, the insole is reduced in
thickness at the fore part of the shoe beginning
20 preferably substantially at the front shank line
and terminating substantially at the tip, thereby
conducing to a shoe which is lighter and more
?exible at its fore part. While such reduction
in thickness may be performed in connection with
25 insoles ‘of various types, including leather in—
soles, as by gouging out a layer of insole mate
rial of the desired thickness, nevertheless, the
principles of the present invention are applicable
to especial advantage in connection with plied in
30 soles, that is, insoles made up of two or more plies
or laminations and whose plies may be readily
I separated at their planes of bonding or plying.
in such case, the insole may be prepared for the
shoe-making process in such a way that one or
35 more of the outer plies may be quickly lifted or
removed from the fore part alter the marginal
, portion of the shoe upper has been suitably fas
tened to the insole as ordinarily.
'
'
I may cite the application of my invention to a
cement-process shoe which is made by initially
channeling the edge of the insole inwardly to
form two laps, one of which is turned upwardly
and serves as a lip to which the edge portion of
the upper is attached ‘as by staples, and the other
45 lap of which serves to receive the marginal por
tion of the upper in cemented relation thereto.
In making such shoes, the lip simply serves as a
temporary means for holding the upper in
place while the cement employed for bonding the
50 marginal portion 01'.’ the upper to the insole is
setting or hardening. In other words, the lip,
together with the staples or other fastening
(CI. 36-42)
insole is made up of two plies, it is a comparatively
easy matter to remove the outer ply material at
the forepart of the shoe, as all that need be done
is to form a kerf in the insole at the front shank
line, say, about one-quarter inch in front of the 5
ball line, extending from one edge of the insole to
the other and of a depth terminating at the plane
of plying. The fact is that when the channel is
formed substantially at the plane of plying or
somewhat inwardly of the plane of plying, the re- 10
moval of the temporary lip, staples and excess
upper; as hereinbefore described, leaves the outer
ply material free for easy removal through the
formation of a kerf such as described, as such a
keri’ develops a starting edge which can be grasped 15
by the operator so as to allow a pulling away or
removal of the outer ply material from the rest
of the insole. It is thus seen that the insole may
be prepared in such a way as to permit a prompt
reduction of the thickness of the insole at the 20
fore part of the shoe immediately after the upper
has been attached to the insole. In the case of
McKay or welt shoes, wherein the marginal por
tion of the upper is tacked or sewed to the insole,
the insole may be pro-scored to permit the desired 25
removal of the outer ply material at the fore
part of the shoe immediately after the upper has
been ?xed to the insole.
With the foregoing and other features and ob;
Jects in view, my invention will now be described 30
in conjunction with the accompanying drawings,
wherein,-
’
Figure 1 represents in plan view an insole pre
pared in accordance with my invention for mak
, ing one type of cement shoe. -
35
Figure 2 is a plan view of the shoe bottom im
mediately after the temporary lip, staples, and
the excess upper have been cut away, the remov
able outer-ply portion of the insole being part
ly lifted away from the insole adjacent to the 40
shank line.
'
Figures 3, 4 and 5 represent sections on the line
3-3 of Figure 2 at different stages of the shoe
maklng process.
Figure 6 is a side view of the ?nished shoe, the 45
fore part being shown in section.
Figures 7 and 8 are fragmentary sections
through a shoe containing a somewhat modi?ed
form of insole at diii‘erent stages of shoe-making. 50
Figure 9 is a plan view of an'lnsole pre-scored
for use in a McKay shoe. -
means and excess upper, is cut or trimmed away
Figure 10 is a plan view of such a shoe bottom
after anchorage of the upper to the insole by the
55 cement has been effected. In such case, when the
immediately after the upper has been tacked to
the insole, the removable outer ply portion of 55
2
_
9,649,048
terial i8 and channeling may be effected in the
.
the insole being partially lifted from the mt oi’
the insole adjacent to the shank line.
Figure 11 represents a section on the line ii-Ill
.of Figure 10, with the outer sole secured in place.
ner my I 8 on a plane suf?ciently removed from
the ‘plane of plying so that when the marginal
30 of the shoe upper is bonded to the in
Figure .13 represents, a fragmentary section
ner lap 2!, the outer face~of the marginal por- 5
tion will lie substantially flush with \the plane of
P1ym8-',This' means that when the temporary
lip, staples, and the edge portion of the shoe up‘
' ‘ through the fore part of the completed welt shoe.
~ Referring now in detail to the drawings, the
the outer ply is torn away from the rest of the 10’
Figure 12 is a plan view of a welt shoe bottom
_ immediately before the removable outer ply por
tion has been removed,
7
inner sole shown in Figure 1 may comprise two
per are removed and the removable fore part of .
insole, a substantially ?at bottom requiring no '
plies of substantially equal thickness, namely, an , ?lling material will result, as shown in Figure 8.
outer ply of comparatively sti?.’ material, and an
inner ply of comparatively soft and ?exible ma
terial. The stiff outer ply lends itself nicely to
channeling and may be channeled from its edges
. .15
inwardly, excepting at its heel portion immedi
In preparing a two-ply insole for the manu
facture of McKay shoes, it is‘ desirable to pre
score the insole as illustrated in Figure 9. The
scoring is done inwardly of the'edge portion of the
insole to leave an edge zone of su?icient width to
t tacking of the marginal portion of the
ately‘adiacent. to' the plane of plying. thereby
forming a pair of laps. As shown in Figure 1, a
kerf a: may be formed across the outer ply. at the
. front shank line.
This kerf may extend from one
shoe upper to the insole. ‘The scoring may start
substantially at the front shank-line of the in- 20
sole and take the general contourv of 'the insole,
as shown in'Figure 9, with the score line reach-,
be of a depth terminating at the plane of plying. ing internally to the plane of plying. After the
The outer lap I 0 formed by the channel is, as ml portion of the shoe upper 2! has been
25' shown in Figure 3, bent outwardly to form a lip secured by tacks 22 to the insole, the operator 2
to which the edge portion of the shoe upper II may remove the outer'ply material defined by the
is secured as by staples I! while held on a last i3. ' line of score, as shown in Figure 10. In this case
This securement is merely a temporary-one clei too, a cavity is left in'the shoe bottom where the
signed to hold the shoe upper, in place, for the outer ply material has been removed, and this
cavity may be filled with a soft, ?exible ?lling 30
80 marginal portion ll of the upper and/or the in
material 22, as shown in Figure 11, before the
. ner lap it receives a coating of liquid cement de
' side edge of the insole to the opposite edge and
signed to set or harden and thereby
outer sole 28 is stitched as ordinarily to the inner
an
chor the shoe upper. After the cement has set,
the up l0, staples I2, and the edge portion of the
35 upper, are removed by cutting down as far as. the
outer surface of the marginal portion id of the
upper, as shown in Figure 4.
.
In
g welt shoes, an inner sole composed
of two plies may be prepared as ordinarily with 35
a stitch-receiving channel 24 inwardly of its edges
This leaves the up- ‘ and a properly rounded edge portion 25.
per ply material beginning with the kerf x and
terminating'with the tip line 2!, ‘as shown in Fig
ure 2, free for removal. The operator may, there
fore, grasp the starting edge e develor-i by the
her! and pull the upper ~ply material away mm
the rest of the insole, as illustrated in 2 1: ;:~
2.
When this has been accomplished, a cavity or re
case ‘is formed at the shoe bottom between the
edges of the shoe upper and this cavity may, as
shown in Figure 6, be ?lled with a ?lling material
'45
S0
I.
Im
mediately beyond the stitch-receiving channel as,
the insole may be pre-scored in the same way as
is an insole designed for use in McKay shoes. 40
After the insole has been assembled with the shoe
upper and welt, the removable outer ply portion 1
26
y be torn away and‘the cavity thereby
formed
be’ ?lled with a suitable ?lling com
El, as shown in Figure 13, before the 45
outer sole 281s stitched‘ to the welt 29 as ordi
It is thus seen from the foregoing description
I6 preferably of a soft and ?exible nature before '
"the outer sole l ‘I is cemented as ordii, ' ' to the of various applications of my invention, that I
shoe bottom. The removal of the outer pLV ma ' am enabled to start out with an insole of su?icient 50
, terial of the insole at the forepartof the shoe thickness, say, the usual four-iron insole, per
. greatly enhances the ?exibility of the shoe where form the necessary shoe-making operations‘ as
?exibility is highly desired. The shank'snd heel ordinarily, and. then to remove that portion of
portions of the shoe are, however, preserved rigid, the insole which is unnecessary and which oe
55 asrigidity is a desirable quality at these portion. tracts from the desired'qualities of lightness and 5 WI
vIt might be mentioned that the insole is prefer
ably completely prepared before it is tacked to
the last. In other words, the kerf a: is prefer-i
ably formed therein and the lip I0 is turned out
'50 wardly before tacking to the last is effected. The
kerf :c permits the insole to break or ?es easily
and assume the contour of the shank portion of
the last and it also facilitates the outward turn
ing of the lip ill at 'the shank portion of the in
65 sole withoutcrowding or bunching at this por
tion.
'
'
-
1
when the insole is made up oi’ two ‘plies, either
. or which a sumciently still to permit successful
‘channeling, channeling may be e?ec
v
in the in-'
70 ner ply on a plane sumciently removed from‘the
plane of plying to dispense with the need of shoe
?ller material after outerply m‘a
has been
.removed'from the fore part of the
. 'lhus,
esshown inrlaure '1. the inner ply‘
75..
as
be somewhat thicker than the outer'ply ma»~
?exibility at the fore part of the shoe, whereas
the rest of the shoe, including the shank and
heel portions, is preserved rigid, as is usually de
sired. While the principles of my invention have
been described speci?cally in connectionwith 60
such types of shoes as McKay or Littleway, welt,
and a particular form of cement-process shoe, it
is to be understood that these applications of my
invention are merely illustrative and that other
speci?c
ts of my invention are possible 65
and indeed highly practicable.‘ For instance‘, in '
channeling the insole for cement-process shoes,
le to cut the channel outwardly from
the edges of the~insole, intead of from
the edges inwardly, as previously described, to 70
it is
form a temporary lip-for the attachment of the
shoe upper; the liprexcess-upper, and-staples be
ing
uently removed or- trimmed away. -
This sort of channeling allowsthe .outer ply to.
at thefore part of the
e, 25
readily
‘
aoaaoss '
but the marginal or edge portion 0! the insole is
left intact withboth plies. The intact marginal
or edge portion does not, however, detract unduly
from the ?exibility afforded by the zone which
has been reduced in thickness and which exists
throughout the fore part of the insole, excepting
at such intact marginal or edge portion.
I claim:—
_
' .
p 1. An insole channeled from its ‘edges inward
iv to form lapping edge portions, one of said porq
vtions being bent outwardly to form a lip,'said in
sole having a kerf substantially at the front shank
line and extending from its outer face to its
3
tially at the front shank line and of a depth com
mencing at its outer face and terminating sub
stantlaily on the plane oi’ channeling.
4. An insole made up of at least two plies, one
being relatively ?exible and the other relatively
still’, said sti? ply being channeled inwardly from
its edges adjacent to the plane or plying to form '
lapping edge portions, one ofo said portions being '
bent outwardly to form a lip, and said insole hav
ing a kerf substantially at the front shank line
and of a depth beginning with the outer face
of said stl?‘ ply and terminating substantially on
1'0
the plane of plying.
5. An insole made up of at least two’ plies,v one
15
2. An insole channeled from its edges inwardly ‘of said plies being scored inwardly of its edges 15
to form lapping edge portions, one of said portions substantially to the plane of plying along a line‘
being bent outwardly to form a lip, said insole following the contour of the fore part and includ
having a kerr' substantially at the front shank ing a ker! substantially at the front shank line..
interior.
-
-
' line and of a depth commencing at its outerface
and terminating substantially on the plane of
6. An insole made up of at least two plies, one
of said plies being scored inwardly of its edges 20
channeling.
, _
substantially to the plane of plying along a line
3. ‘An insole made up of at least two plies chan
following the contour of the fore part and includ
neled ‘substantially on the plane of plying in
ing a kerf substantially at the front shank line
wardly from its edges to form lapping edge por
and whose ends terminate within the insole edges.
tions, one of said portions being bent outwardly
FRED L. AYERS. 25
to form a lip, said insole having a kerf substan
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