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Патент USA US2406975

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Sept. 3, _1946.
`
27,406,975
J. J.. wALsH
PROCESS OF MAKING SLIP LASTED SHOES'
Filed May 1'8, 1944
u
//
Patented Sept. 3, 1946
2,406,975
UNITED STATES PATENT OFFICE
PROCESS OF MAKING SLIP LASTED SHOES
John J. Walsh, Des Peres, Mo., assigner toI‘enaljoA
Company, St. Louis, Mo., a firm
Application May 18, 1944, Serial No. 536,069
'3 Claims.
>l
(Cl.` 12-142)
.
2
This invention relates to a new. and useful im
tion Without the employment or use of a last dur~
provement lin the process of making shoes.
My invention has for its primary object .the
provision of a shoe requiring for its production
only a few process operations not only for `the
ing the initial stages of its manufacture.
To such end, I provide a section or >piece I
most part of so-called slip-last type, ,but also
of cloth, thin leather, or other flexible fabric
or material cut to and having the `general out
line or contour and dimensions of the outer sole
'readily effected with ease, accuracy, and precision
byjrelatively unskilled workers and with conse
best seen in Figure l.
quent savings in labor costs and> the elimination
of losses by reason of faulty and rejected shoes.
A suitable strip of leather, `fabric, or binding
tape 2 is then stitched around the entire margin
of the particular shoe being manufactured, as
i
of the section I in the formation of an edge
My invention has .for a further’object the pro
bound insole A. The insole A is then placed
vision of a shoe through and bythe employment
beneath a suitable pattern (not shown) and,
of the process-operations mentioned which is
with crayon 0r marking pencil, pairs of guide
simple and sturdy in structure, which is soft and
comfortable on the foot, which is light in weight 15 marks, va, a, b, b, and c, c, are inscribed thereon,
as shown in Figure 3.
and attractive in appearance, `and which is Velll
The vamp member B, Figure 4, is first cut and
vciently serviceable.
` '
otherwise constructed to approximately conform
And with the above and other objects .in view,
to the contour, shape, and size required -in the
my invention resides in the novel features of
ñnished shoe. Such vamp B may, of course, be
form, construction, arrangement, and combina
made 4of any `suitable leather, fabric, or other
tion of parts and in the unique steps ;or process
material customarily employed in shoe manufac
of shoe production all presently described and
ture and may, as illustrated in the present in
pointed out in the claims.
stance, be of the open toe type, although it will
In the accompanying drawing,
Figures 1 -to 6, both inclusive, illustrate in .» be understood that a closed toe type of shoe may
equally well be constructed by this present
plan or perspective some of the elements,.namely,
method. After being cut and stitched, the vamp
the insole, the upper, and strap members'em
memberB is placed under a suitable pattern (not
ployed in the >constructionof la shoe inraccord
ance Vwith myA present invention;
Figures ’7 and 8'are side elevational and `bot
tom plan views, respectively, of the shoe‘in po
sition on a slip last;
Figure 9 is a bottom ¿plan view, partly broken
away, of the shoe after application thereto of a
sole member;
_
-
Figure 10 is aside elevational view of the ccm
pleted shoe;
shown) and, with `a marking pencil or crayon,
is .inscribed on the outsole contacting face with
pairs of guide marks d, d, and e, e, as shown in
Figure 4, positioned for registration, respectively,
vwith the guide marks a, a, and b, b, of the insole
‘ A. In addition,'a heel strap assembly Cris formed,
as shown in Figure 5, consisting Vof a back-strap
3 and a pair of buckle-connected ankle straps
4, 4', the back-strap 3 being also provided with
guide marks j, f, for registration with the guide
Figure 11 isa transverse sectional view of the
marks c, c, of the insole A.
completed shoe taken approximately `along the
As an initial assembly step, the vamp member
40
line II-II of Figure 10;
B is marginally folded `over :the insole A so that
Figure 12 is a fragmentary longitudinal sec
the respective guide marks come into registration
tional víew of the completed shoe taken approxi
and then secured by short lines of stitches 5, B,
mately along the line I2----|2 of Figure 11;
as shown in Figure 6. Similarly, the back-strap
Figures 13 and 14 are views, respectively, of 45 isfolded `over so that the guide marks Í, Í, are
a modiñed form of upper member and insole
in registration with the guide marks c, c, and
member designed to be assembled therewith for
secured by lines of stitches 1, also as shown in
the manufacture of a shoe of the so-called pump
Figure 6.
.
type.
With the parts A, B, and C so joined or united
Referring now more in detail and by reference 50 one tothe other, the shoe is then placed on a last
characters to the drawing, which is illustrative ‘ L, and in order to insure subsequent precise last
ing, tacks or other temporary securing members
both of practical embodiments of a shoe of my
8 are preferably disposed through the insole A and
present invention and of its method or process of
into thelast L, as indicated in Figures 7 and 8.
manufacture or production, the present shoe is i
built up on an edge-bound insole as a founda 55 The unsecured margins of the vamp B are then
2,406,975
3
4
suitably coated with adhesive and then “pulled
parting from the nature and principle of my in
vention.
Having thus described my invention, what I
claim and desire to secure by Letters Patent is:
1. That process of making slip-lasted shoes
over” and pressed flatwise upon the correspond
ing marginal portion of the insole A.
When the “pulled over” margins of the vamp B
have “set,” the temporary securing tacks 8 are
which includes forming an insole having approx
contour, design, and shape is then adhesively or
imately the contour of the ñnished shoe, forming
otherwise suitably fixed qflatwise to andupon the
anupper also having the. approximaterdimensions
under faceof :the insole-A and over, and'thereby
Vand@shape»corresponding .to those >of the ñnished
concealing, the underfolded marginal portions of 10 shoe and being adapted to be ultimately secured
the insole A and upper B, as is best seen in Figures
>to opposite sides of the insole along continuous
9 and 10. Finally the shoe is completed by ad
lines between the toe and shank of the shoe, fold
hesively securing therein a conventional sock-'lin
ing‘the upper marginally over and upon the un
ing E, and in due course a heellï‘is suitably .aiîixed
deriace ofthe insole, initially stitching said up
at the desired location to and upon the under,~.face
pertothe insole prior to lasting and only in lim
of the outer sole D, as illustrated in Figure l0.
ited areas adjacent the toe and shank portions of
If desired, a one-piece upper B’ >of 'the ‘fopen
the insole while >leaving the margins of the upper
toe-and-heel” type, as shown in Figure 13,-.may be free rbetween such limited areas of securement,
employed. In such casa-the upper B’ Will be pro
placing the partially completed shoe upon a last
vided with guide marks d', d', e', e', and an insole 20 and thereupon pulling over and cementing~ down
member A’ substantially‘similar to the previously
the unstitchedmargins _of the upper and applying
described in'sole‘member A Willbe employed, eX
a sOle'member.
,
cepttthat only twopairs of guide marks a’, o', and
2. In a processof making slip-lasted shoes,.the
b', `b’, Will be necessary, as shown in Figure 14.
steps of’providing an insole having approximately
This -modiñed -form of -shoe 4will of course be as
the contour of the ,ñnished shoe, placing a_pair .of
sembled exactly in the manner previously
guide `marks on opposite sides of .the toe portion
described.
of the insole, placing a _pair .of _guide mark-5 on
It should be noted that Ythe present method
opposite sides of the shank-portion of ,the insole',
makes 'possible ‘the manufacture of an extremely
providing an upper also having the approximate
efficient shoefby=relatively unskilled Workmen in
dimensions and shape corresponding jto those of
asmuch as the assembly operations prior to‘plac
the finished shoe, placing- pairsof guide marks on
ing the shoe lon'a last are facilitated by the use
the upper in suitable positions for‘registration re
of the several pairs of guide marks. A rela
spectively with the guide marks of the insolewhen
tively untrained workman can easily superim
the shoe is assembled, folding >the upper mar
pose the guide marks of the insole A and the vamp o ginally over the'insole so that the respectivepguide
member B and secure the twol parts together in
marks are in visible alignment,__permanently se
such‘p/osition, so that the siZe of the ñnis'hed shoe
curing the upper and insole togetherin the .re
will be accurate. Furthermore, with the parts
gion of the registeredguide marks prior‘to lasting,
stitched together along the lines of registration of
lasting and adhesively securing the Imargins yof
the guide‘marks, there is no danger that the shoe 40 the upper to the insole intermediate thepoints of
Will accidently come apart due to unskilled han
permanent securement, and then 'applying‘a sole
dling -While it is vbeing placed upon‘the last Il.
member to the bottom of thejshoe.
In addition, the finished shoe retains its size Yand
3. In a process of shoe'production, the steps Aof
shape and is much more durable’by reason of per
providing an insole havin-g approximately the
manent securement in limited areas or regions by
contour> o'f the `finished shoe, placing 4a pair of
lines of stitches as above described. This results
guide marks on opposite sides of the toe portion
from the fact vthat the lines of stitches are eX~
of the insole, placing a ypair o'f guide marks “on
tremely strong and iiexible -andby being placed
opposite sides of the shank portionof the insole,
adjacent'the initial points of juncture between the
providing an upper also 'having the approximate
insole 'and vamp member at the toe and shank,
dimensions and shape corresponding to those of
will take much -greater shear stresses and will
the ñnished shoe, placing pairs vci’ guide marks
effectively overcomek the tendency for the outer
on the upper in suitable positions for registration
edges of the cemented -seams >to peel away, as is
respectively with the guide marks of the insole
ordinarily encountered in cemented shoes.
when the shoe is assembled, 'folding the upper
"It 'Willbe'understood of course, that the 4s'hoe
marginally over the insole so that the respective
parts or Velements are Lpermitted to stand from
guide marks are in visible alignment, permanently
time to time during the production of the shoe
securing the upper and insole together lin `the
to vallow the adhesive or cementitious binding or
region `or" the registered guide marks fprior to
securing material to dry and harden, and it will
lasting, placing-the thusly secured'upper andin
also be understood that other changes and modi 60 sole upon a last, lasting and-adhesively securing
fications in the form, construction, arrangement,
themargins of the upper to the insole interme
and/combination of the several parts of the shoe,
diate the points of permanent «,securement, .and
as Well as changes also in its steps of manufac
then applying asole member .to the bottom ,of the
ture `or'production, 'may be made and’substitute'cl
shoe.
for those Aherein shown and described without de
JOHN J. WALSH.
removed and an outer sole D of the desired shoe
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