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Патент USA US2111512

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2,111,512 “
Filed Feb. 1. 1936
2 Sheets-Sheet 1
ch '15, $938.
Filed Feb. 1, 1956
2 Sheets-Sheet 2
Patented Mar. 15, 1938
Austin Na'ceski, Nashua, N. 11., assignor to J. F.
McElwain (30., Su?olk County, Mass, a corpo
ration of Massachusetts
Application February 1, 1936, Serial No. 61,902
6 Claims. (01. 12-9133)
The operation of securing a heel to a shoe usu
ally is- performed in a heeling machine which
drives simultaneously all of the nails required
for this purpose. At the timethis operation is
*5 performed the shoe customarily is on the last on
which it was made. The heeling machine ,in
cludes gaging devices for positioning the shoe
heel properly withreference to the nail plate,
and also is equipped with a jack'post mechanism
carrying a jack pin for entering the thimble on
the last and assisting in centering the-heel end
of the shoe with reference to the nail plate and
the other nail‘ driving instrumentalities. Usual
ly, also, ‘some additional positioning means is
.21or . provided for engaging the counter portion of the
shoe to aid in this centering operation. The po
‘ sition of the shoe during this heel attaching oper
ation is, however, chie?y controlled by the oper
He moves the shoe in a horizontal plane
into a position, largely determined by his eye,
which-he regards as correct, and then operates
the treadle which sets into motion the nail driving
Figure 1 is a perspective view of the cone por
tion of a last equipped with a guiding element
embodying a feature of this invention;
Fig. 2 is a side elevation, with parts in vertical
section, illustrating means for positioning a shoe
in a heeling machine in accordance with this
Fig. 6 is a side elevation showing the invention
applied toanother type of jack post mechanism;
Figs. 8 and 9 are plan views, partly in section,
illustrating other embodiments of the invention.
Referring ?rst to Figs. 2 to 4, inclusive, the
nail plateof a heeling machine of a common com
mercial type is shown at 2, and the jack post
median plane of a shoe varies considerably in
prises a body member having a dove-tail projec
tion to fit ‘into a corresponding groove in the
support 4, and also includes a slide 5 in which a
so-ca'lled “straight” last, the heel may line up
with the shoe, or the angle of divergence between
Fig. '7 is a rear elevation of the jack post shown
in Fig. 6; and
mechanism is indicated in general at 3. It com
In a shoe made on a
Figs. 3, 4 and 5 are front, side and bottom views,
respectively, of a jack post mechanism equipped
with a positioning or guiding element embodying
a feature of this invention;
T The position of a heel with reference to the
different styles of shoes.
jack pin 6 is secured. This arrangement provides
centage of shoes, particularly men’s shoes, and
for both a backward and forward movement of
the shoe, together with the pin 6 and slide 5, to 0
more especially those made on “crooked” lasts or
position the shoe for the heeling operation, and
the two‘may not be great, but in a very high per
ings, and the ‘novel features will be particularly
pointed out in the appended claims.
In the drawings,
also for the swinging movement of the shoe in a
horizontal plane, as above described. The heel
1 is positioned by any suitable gaging devices with
‘the center line of the shoe. This angle is deter
'35 mined chiefly by‘the operator and it is not an _ which the heeling machine customarily 'is
‘easy matter for him to position every shoe of a equipped, so that its location with reference to
the nail plate 2 and the other nail driving ‘in
given size and style in exactly the same relation
strumentalities isv predetermined and substan
ship to the nailing mechanism. Naturally the re
sults produced areaffected by the care and skill tially ?xed, although adjustable.
According to the present invention additional
'40 exercised, by fatigue, and other human factors.
‘The ‘present invention aims to ‘facilitate the devices are provided to cooperate with each other
heeling ‘operation-with a View to eliminating, or in determining the angular position of the last
at least substantially reducing, the variations due in a horizontal plane, one of .these devices being
to the causes above described. -It is an important mounted in the machine and the other carried
by the‘ last. In the particular arrangement i1
object of the invention to devise'means ‘for so
lustrated in Figs. 1 and 2 the forward end 'of the
assisting the operator in positioning shoes for upper portion of the heel part of the last 8 is
those having a decided, “swing”, thecenter' line
of the heel makes a relatively large angle with
the attachment of their heels that much of the ‘ notched or cut away to receive a guide plate It.
care, skill and judgment required of him will be
eliminated, and the heels ‘on successive shoes of
any given size and style consequently will be
positioned with a high degree of uniformity.
The nature of the, invention will be readily
understood from the following description when
read in connection with the accompanying draw
Preferably this plate is made of angular form in
order to give added strength and to provide in 50
creased area for receiving the screws by which
it is secured to the last. The guiding or position
ing portion of this plate, however, consists of
the upright part of it, provided with a broad, ?at.
laterally disposed face extending at approximate 55
1y right angles to the median plane of the last.
part I8 corresponds to the plate In and is made
In other respects this last may be of any suit
wedge-shaped, or thicker at one edge than the
other, so that when it is in full engagement with
able form, the particular construction shown hav
ing the usual hard ?ber reinforcing plate l2 and
the customary thimble I3.
The positioning element provided in the ma
chine to cooperate with the part ill consists of a
plate l4, secured to the front vertical face of the
jack post body 3 by-means of screws l5. Pref
erably the lower portion of this plate is thickened
and its rearward surface is bevelled, as shown at
I6, Fig. 4, so as to provide a straight lower edge
projecting somewhat behind the adjacent por
Another embodiment of the invention is illus
trated in Fig. 9 in which the cooperating position
ing members, instead of having straight or flat 10
abutting surfaces, are made of angular formation.
tions of the plate.
into a complemental V-shaped notch 2| in the
In using this invention, the heel ‘I is positioned
in the machine in the usual manner, and the last
is slipped on to the jack post mechanism with the
pin 6 inserted in the thimble l3. At this time the
slide is pushed back away from the plate I4, but
20 after the last has been placed in the relationship
plate l4.
As shown in this ?gure the plate IE) has been re
placed with a V-shaped plate 20 designed to ?t
?xture I 4', the latter member corresponding func
tionally to the ?xture I 4. This angular shape
of the cooperating surfaces 20 and 2! is of assist
ance in centering the guiding element on the
plate properly in the stationary ?xture orlguiding
member secured to the machine, and thus cor
just described, it is then pulled forward, carrying
rectly locating the shoe.
the slide 5 and jack pin 6 with it, until the up
right face of the plate it) strikes the rearward
In that type of heeling machine in which the
shoe is supported in an inverted position during
the heeling operation, the same guiding members
IE3 and I4 may be used, as illustrated in Fig. 6. 25
In this arrangement the plate In is secured to the
last exactly as in the construction shown in Figs.
1 and 2. The jack post structure, however, is of
a slightly different form, including a body meme
edge of the stationary positioning plate [4. This
25 contact with the parts It) and M stops any further
forward movement of the shoe, but if the plate Ill
does not strike the member !4 in such a manner
that the entire edge of the latter is in engage
ment with the former, then the forward pull on
the shoe will tend to swing the shoe automatically
until such engagement is produced. This swing
of the shoe will take place around the axis of the
pin 6, and the adjustment of the parts should be
such that when the members It] and M are in
full engagement with each other, the heel will be
centered properly with reference to the nail plate
2. It will be evident that the full engagement of
the parts Ill and M with each other can occur
only when the shoe is in a predetermined angular
40 position in a horizontal plane. In other words,
these parts determine this angular position in
said plane. They also cooperate with the'pin 6
to position the shoe correctly ‘with reference to
the nailing instrumentalities and the devices that
45 position the heel 7.
Care should, of course, be taken to accurately
position the last thimble 13 with reference to the
shoe shaping surfaces of the last and to locate
the plate It) accurately with reference to said sur
50 faces and the thimble I3. 'These results can,
however, be readily produced in a line of lasts
designed for the manufacture of a given style and
size of shoe. If these operations are accurately
performed during the manufactureof the lasts,
55 then the arrangement above described greatly re
duces the care, skill and judgment required in
positioning the shoes in the heeling machine in
order to be sure that the heels on the entire line
of shoes of any given style or size are correctly
the edge of the plate l4, it throws the median
plane of the last 8 into a divergent position with
reference to a vertical plane at right angles to the
As above stated, it frequentlyhappens that the
center line of the heel makes a considerable angle
with the median line of the last. The desired de
partures in the alinement of the, parts may be
65 made entirely by suitable changes in the position
of the heel gaging devices, but this is not always
possible or convenient, and in order to hold the
shoe in different angular relationships to the nail
plate or the heel, the plate Hl may be located in
different angular relationships to the longitudi
nal median plane of the last.
Or the same re
sult may be obtained somewhat more convenient
ly by making either of the members I!) or M
thicker at one side than the other.
Such an ar
75 rangement is illustrated in Fig. 8 inlwhich the
ber 22 having a concave upper surface to receive 30
a rocking and sliding block 23 to which the jack
pin 24 is secured. This is a jack post mechanism
in common commercial use. The positioning
plate or ?xture I4 is secured to the member 22
in essentially the same relationship as in the con 35
struction illustrated in Fig. 2 where it will be en
gaged by the plate ID on the last when the shoe is
moved forward to position it for the heeling op
eration. It will be understood that in this type
of heeling machine the nail plate and the heel 40
positioning devices are located above the shoe,
and the nails are driven downwardly through the
heel instead of upwardly, as in the construction
previously described. The shoe positioning op
erations, however, are performed in the same 45
manner in this machine as in that shown in Fig. 2. "
While I have herein shown and described typical
embodiments of my invention, it will be under
stood that the invention may be embodied in
other forms without departing from the spirit or
scope thereof.
Having thus described my invention, what I
desire to claim as new is:
1. A shoe last having a thimble to receive a jack
pin, a lateral surface of the upper portion of the
heel part of the last being provided withv a hori
zontally extending recess, said recess having walls
located at an angle to each other, and a metal
plate secured to said last and having surfaces
?tting against said walls of said recess.
2. A shoe last having a thimble to receive a 60
jack pin, a lateral surface of the upper portion of
the heel part of the last being provided with a
horizontally extending recess, said recess having
walls located at an angle to each other, an angu
lar metal plate located in said recess and hav
ing an approximately horizontal ?ange ?tting
against one of said walls and an approximately
vertical flange ?tting against the other, and
means securing said metal plate to the heel part
of the last.
3. A shoe last having a thimble to receive a
jack pin, a lateral surface of the upper portion of
the heel part of the last being provided with a
horizontally extending recess in the forward end 75
of the upper part oi? the heel portion of said last,
and a ?anged metal plate mounted in said recess
and secured to the heel part of the last.
4. A shoe last having a thimble to receive a
jack pin, and a positioning element secured to the
upper portion of the heel part of said last and
provided with a laterally directed V-shaped guid
ing surface.
5. A shoe last having a thimble to receive a jack
10 pin, and a positioning element secured to the up
per portion of the heel part of said last and pro
vided with a laterally directed V-shaped guiding
surface, the apex of said surface being located at
the forward end of said heel’ part of the last.
6. A shoe last having a thimlole to receive a
jack pin, and a positioning element secured to the
upper forward end of the heel part of said last
and having an approximately upright positioning
surface at the front thereof extending diagonally
with reference to the longitudinal median plane
of the last toward one side face of the last.
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