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Патент USA US3092869

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June 11, 1963
E. HAAS
3,092,860
SHOE MACHINE FOR soLE AND HEEL. BREAST FLAP LAYING
Filed Feb. 16, 1959
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INVEN TOR.
EDcjAE H445
BY
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MKZZJM;
A7 ORA/E75
June 11, 1963
E. HAAS
3,092,860
SHOE MACHINE FOR SOLE AND HEEL BREAST FLAP LAYING
Filed Feb. 16, 1959
3 Sheets-Sheet 2
241
265
INVENTOR
foémz HMS
ATTORNEYS
June 11, 1963
E, HAAS
3,092,860
SHOE MACHINE FOR SOLE AND HEEL BREAST FLAP LAYING
Filed Feb. 16, 1959
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ATTORNEY;
United States Patent 0
3,692,86
1
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Patented June ll, 1963
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2
aeaasse
The high pressure squeeze is applied only after all of
these relatively movable parts have settled into substan
SHOE MACEEIE FOR SQLE AND HEEL
BREAST FLAP LAYENG
tially their ?nal position.
Edgar Haas, New York, N.Y., assignor to Herman
‘ichgahe, Inc, Brooklyn, N.Y., a corporation of New
or
The pads are preferably ?uid or water ?lled, and a
further object of the invention is to separate the two
pads to facilitate relative movement thereof, and at the
same time to equalize the pressures therein.
Filed Feb. 16, 1959, Ser. No. 793,4se
10 Claims. (Cl. 12-162)
To accomplish the foregoing objects, and other ob
jects which will hereinafter appear, my invention resides
This invention relates to shoe machines, especially for 10 in the shoe machine elements and their relation one to’
ladies’ shoes having high heels, and more particularly
another as are hereinafter more particularly described in
to a machine for cementing the sole and heel breast ?ap
the following speci?cation. The speci?cation is accom
panied by drawings in which:
of such shoes.
Ladies’ high heel shoes of better quality usually in-_
clude a heel breast flap which is a direct continuation of
the sole of the shoe. Originally, the heel portion of the
sole was split to provide the desired heel breast ?ap, but
in more recent manufacture the heel is attached ‘?rst, and
then the sole and heel breast flap are cemented in posi
tion. Ordinarily, this requires two operations, one for
FIG. 1 shows a machine embodying features of my
invention;
FIG. 2 is a perspective view showing a ladies’ shoe
mounted at one of the stations of the shoe machine;
FIG. 3 is a longitudinal section showing how the
actuator and heel back pad may be applied to an ad
justable shoe pad of known type;
cementing or “laying” the sole, and the other for cement
ing or “laying” the heel breast.
The primary object of the present invention is to pro
vide an improved machine for laying the sole and heel
FIG. 4 is a fragmentary elevation drawn to larger
scale, taken at the right end of FIG. 3, but showing a
modi?ed form of the invention;
FIG. 5 is a ?ow diagram ‘for the machine;
breast ?ap simultaneously.
FIG. 6 is a perspective view showing the invention
25
A more particular object is to do this by motor means,
applied to a shoe machine of different com?guration,
preferably using ?uid pressure. This requires the ap
and further showing the use of ?uid ?lled pads; and
plication of mutually transverse forces, that is, a force
FIG. 7 is a transverse section through one of the pads.
is needed generally perpendicular to the sole for cement
Referring to the drawing and more. particularly to
ing the sole, and another which is generally parallel to
FIG. 2, the machine comprises a first ?uid actuator the
the sole for cementing the heel breast flap.
plunger of which is shown at 12, which exerts a pressure
A further object is to interrelate or proportion these
between the sole and the upper 14- of a shoe carried on a
transverse forces, which may be done by using the same
last 16, this pressure being in a direction generally per
pressure ?uid for both.
pendicular to the sole. The reaction is taken by adjust
Another object is to regulate the relative rate of move
ably ?xed toe and heel posts 15 and 17. A second ?uid
ment of the parts applying the transverse forces, lest a
actuator 20 exerts a pressure between the heel breast flap
discrepancy in desired movement spoil the product, as
and the heel of the shoe in a direction generally parallel
by breaking a slender heel.
to the sole of the shoe. The machine further comprises
A further object of the present invention is to apply
means to apply pressure ?uid simultaneously to both ac
the same to a sole laying machine much of which is of 40 tuators, and this includes a ?exible hose 22 leading from
known and proved type. One example of such a ma
the base or" the machine to the actuator 20. Within the
chine is that disclosed in my Patent No. 2,843,864 granted
base of the machine there are connections to the cylinder
July 22, 1958, and entitled “Shoe Sole Attaching Ma
chine.”
Such a machine has a base, a head over the
base, two upright cylinders in the base for two cement
ing stations, andaccurately adjustable cloclr timers to
of plunger 12 as well 'as to the hose 22.
The machine preferably includes a ‘means to adjust
the rate of movement of one actuator relative to the other,
and in the present case there is a valve, the control handle
independently time the cementing operation on each of
of which is shown at 24, and adjustment of this valve
a pair of shoes. The mechanism affords a fast rise of
the shoe pad carrying a lasted shoe until it reaches the
may be used to vary the response of actuator 20‘, and
therefore the relative response of the two actuators. _
stop posts on the head, thereby quickly freeing the hands
Referring now to FIG. 1 of the drawing, the two-sta
of the operator to work on a second shoe when the ?rst
tion cementing machine there shown is of the type dis
shoe has been properly positioned. This is done at low
closed in my prior Patent No. 2,843,864 previously re
ferred to, and FIG. 1 of the present drawing largely
corresponds to FIG. 1 of that patent. There is a base
pressure, but then a slow forceful squeeze is applied at
high pressure.
In accordance with the present invention, the main
upright plunger carries a sole and heel breast pad, and‘
also a heel back pad which is movable toward or away
from the ?rst pad. The plunger further bodily carries a.
small hydraulic actuator for moving the heel back pad
horizontally.
,
In accordance with a further feature and object of
the present invention, a low pressure movement followed
by a high pressure squeeze is employed in both cylinders,
32 which may act also as a tank for hydraulic ?uid.
This is surmounted by a frame comprising uprights 34
and a top beam 36. The latter carries adjustable heel
and toe posts for each of the two stations. One station
is actuated by the hydraulic plunger 12 which is shown
down, and the other by a plunger 4-2» which is shown raised.
The plungers have platens which carry‘ shoe pad boxes
with molded rubber pads, and the lasted shoe is com
pressed between these pads and the heel and toe posts
and it here has an important additional advantage wholly
carried by beam 36. The stations are independently
apart from freeing the hands of the operator to work 65 movable under control of separate foot treadles 44 and
on the next shoe. This advantage is that the high pres
46. Depression of a foot treadle causes its station to
sure squeeze is applied only after all of the par-ts have
move from lowered or “release” position to raised or
assumed their proper position. Thus, the heel back pad
“clamping” position. The tank 32 is common to both
moves against the heel under low pressure instead of high
stations and houses a common pump, and a common
pressure, and if it comes into position before the lasted
shoe has risen to the stop posts, no high pressure heel
breaking force is applied. The shoe continues to rise.
pressure relief valve which may be adjusted by means
of a handle 47. The resulting pressure may be read
on a suitable pressure gauge 48.
In a typical case the
3,092,860
a)
pump is ‘capable of building up an excess pressure but
the pressure relief valve may be set at a lower ?gure,
depending on the recommendations for and experience
with the adhesive.
The time during which each station remains clamped
is. independently determined by accurately adjustable
electrical timing clocks 50 and 52. These have a suit
able range, say from zero to 30 seconds. The head may
also carry a safety switch controlled by a common safety
4
connection, and this a?ords a change of adjustment.
However, if a larger range of adjustment is desired, the
entire actuator may be mounted for bodily adjustment
toward or away from the shoe, and such an arrangement
is shown in FIG. 4 of the drawing. In this case the
actuator 20, pipe connection 104 and trunnions 106 all
correspond to those previously described. The heel pad
122 in this case is mounted in a metal holder 124 secured’
at the forward end of actuator plunger 126. Rotation
bar 54, or two separate safety bars, one to release each 10 of the heel pad may be prevented by the addition of
one or more slide pins 128, the forward ends of which
station. The head 36 further carries a motor starter 56
may be screwed into the holder ‘124, and the rear ends of
for the motor which drives the hydraulic pump.
which are slidable relative to the body of the actuator.
In the present machine the actuators 20 are added for
In the present case the trunnions 106 are received in
the heel back pads, and these are supplied with hydraulic
power through the ?exible hoses 22. The ?ow diagram 15 the upper ends of arms .130, which are provided at 132
on the base of the adjustable shoe pad. At an inter
of the machine is described later.
mediate point the arms 130 receive the trunnions 134 of
In FIGS. 2 and 3 of the drawing the actuator 20 is
a block ‘136 which receives a screw 138 carrying an adjust
shown applied'to a highly adjustable shoe pad of the
ing nut 140. The head of screw 138 is pivotally secured
type described in my prior Patent No. 2,863,161 granted
December’ 9, 1958, and entitled “Adjustable Shoe Pad 20 at 142 to a part 144 of the shoe pad. With this arrange
ment it will be evident that tightening the nut 140 will
Assembly.” Referring to FIG. 3, this comprises a base
62 carrying a toe support 64, a shank support 66, and a
heel support 68. The toe support 64 is adjustably piv
move the actuator 20 toward the shoe, while loosening
the nut 140 will move the actuator away from the shoe.‘
Such adjustment is convenient in accommodating shoes
oted at 79, that is, the pivot rod 70 may be raised or
lowered in slots receiving the same by loosening lock 25 of different size, style and type. . The self adjustable tilt
nuts at the ends, as will be seen from inspection of FIG.
of the actuator on trunnions 106 is retained.
2.
The operation of the machine may be further explained
with reference to the ?ow diagram shown in FIG. 5
The angle of the toe support may be adjusted by
rota-ting a handwheel 72 which turns a screw 74 to move
of the drawing. This corresponds largely to the ?ow
a block 76 in horizontal direction along base 62. This
block carries a screw 78 which slides against the bottom 30 diagram in FIG. 5 of my aforesaid Patent No. 2,843,864,
and a detailed description is not necessary because refer
of toe support 64 and so determines the angle thereof.
ence may be had to the aforesaid patent. The change
The shank support 66 may be raised or lowered, and
is in the addition of the horizontal actuators 20 with
for this purpose a handwheel 80 rotates a screw 82 which
moves a wedge 84 horizontally along the base. This in
turn supports an inverted or mating wedge 86 formed
at the bottom of the shank support 66.
The heel support 68 is pivoted on a vertically adjust
able rod 88. The position of support 68 is further
their ?exible hoses 22, valves 24, and pipes 150 which
are connected to the lower ends of the main cylinders
so that the actuators 20 are operated simultaneously with
the main cylinders, and by means of pressure ?uid hav
ing the same pressure. To simplify the diagram, the actu-.
ators 20 have been shown extending sideward instead of
adjusted by means of support screws 98.
40
longitudinally of the shoe, but it will be understood that
For the present purpose the toe support receives a
the showing here is merely schematic.
toe pad 92 molded out of rubber or other yieldable ma
In FIG. 5 the single pump is shown at 260, and is prefer
terial, and the shank support 66 receives a pad 94 of
ably immersed in the tank of ?uid as indicated at 262.
similar material. If desired, these pads may be combined
into a single pad. In either case it will be seen that in 45 The inlet is taken through a sieve 264, and is delivered
to a spring accumulator 266, which may also be im
combination they provide pad surfaces which are shaped
mersed in the ?uid. The purpose and design of this
to bear against both the sole and the heel breast ?ap
accumulator are described in greater detail in my Patent
of a ladies’ shoe.
No. 2,783,486 issued March 5, 1957. The pump out
The usual heel pad disposed on support 68 beneath
the heel of a low heeled shoe is here omitted, and in 50 put is also connected through pipe 268 to a pressure re
lief valve 270, the control handle 244 of which is located
stead the support 68 is used as a mounting for the actuator
in front of the machine for ready adjustment. Over?ow
20, which in turn carries the heel back pad 96. The
from the relief valve is returned to the main body of ?uid
latter is made of molded rubber or equivalent yieldable
262 through a return pipe 272. The pump 260 is driven
material ?tted around a core 98 which is secured at 100
tothe plunger =or piston rod 102 of actuator 28. The 55 by an electric motor 274.
latter may be single acting, and is supplied with hy
draulic ?uid through ?exible hose 22 leading to a pipe
?tting 104 at the rear end of the cylinder. The cylinder
is provided with trunnions 106, and these are received
in the side plates 108‘ of a frame which may be formed 60
integrally with or which may be welded or otherwise
secured to the rear end 110 of the heel support 68. The
The pressure ?uid is connected through pipe 276 to
a ?rst valve 278 for cylinders 280 (and 20) at one sta
tion, and to cylinders 282 (and 20) for the other station
through a pipe 284 and valve 286.
These valves are
preferably solenoid actuated, as is indicated by the sole
noids 288 and 290. In one position of the valve 278 the
pressure ?uid is connected through pipe 292 and check
valve 294 to cylinder 280. In the opposite position of
the valve 278 the cylinder 280 is relieved through pipe
most e?eotively against the heel, here indicated by broken 65 296,,valve 278, and drain pipe 298, and it should be
noted that this circuit bypasses the check valve 294.
line 112.
The valve and pipe arrangement for the cylinder 282
It is convenient to limit the tilting action so that the
is symmetrical or corresponds to that for cylinder 280, and
pad 96 will not turn all the way up, thereby slowing
no further description is believed required. It will also
the work of the operator, and for this purpose a U-shaped
member 114 is secured to the side plates 108 at 116-. 70 be understood that the check valve 294 prevents any
The permitted tilt may be made adjustable by using a
lessening of pressure in clamp cylinder 2801 (and 20)
when pressure is ?rst applied to clamp cylinder 282, and
stop screw 118 and a lock nut 120.
conversely the check valve 344 of clamp cylinder 282
The longitudinal position of the heel back pad 96 may
prevents lessening of pressure in the latter when clamp
be adjusted somewhat by changing the mounting of the
pad on the piston rod 102. The connection is a screw 75 cylinder 280 is ?rst actuated.
pivot action at 106 permits the actuator and heel pad
to tilt bodily, so that the heel back pad 96 may seat itself
‘3,092,860
Because of the check valves it is not possible to drain
the cylinders through the “B” ports, and it is for this
reason that separate “A” ports are provided, with con
nections which bypass the check valves, thus draining the
cylinders.
The treadles 44 and 46 are connected to their respec
6
present case it is the heel pad which is slidably mounted.
Referring to FIG. 7 the base 202 of the pad has outwardly
projecting ?anges 222 which are received beneath rails
224 mounted in position by screws 226. In the case
of the pad 2% the parts 224 act as clamps to lock the
pad in position. Any other desired mounting means may
be provided. In the case of the heel pads, the parts 224
tive timing clocks 50 and 52, and the latter are connected
to the solenoids 288 and 2% of the solenoid valves 278
are dimensioned to ?ord a clearance for sliding action.
and 286. When the valves are closed the spring ac
In FIG. 6 there are pull springs 228, the left ends
cumulator 266 is charged. When a valve is opened there 10 of which are connected to the heel pads, ‘and the right
is a rapid supply of ?uid at low pressure from the ac
ends of which are connected to the stationary base, ‘so
cumulator. This is adequate to quickly move the pads
that the springs serve to pull the heel pads to retracted
‘and shoe to desired position. The pressure then builds
position when pressure on the actuator ‘188 is released.
up to the maximum or “squeeze” pressure. For a still
in the present case the pads are liquid ?lled, and the
more detailed description reference may be made to my
liquid may be water. The liquid may be ?lled through
Patents 2,783,486 and 2,843,864 above mentioned. Here
?ll plugs 2369 which act also as check valves.
the rapid preliminary low pressure movement has an
In order to provide the desired movement of one pad
important additional advantage in permitting relative ad
relative to the other, they are preferably made com
justment of the sole and heel actuators before the high
pletely separate from one another, but the pressure in
pressure squeeze is applied.
side the pads is maintained equal as though they were
Another form of the invention is illustrated in FIGS.
a single pad. For this purpose sole pad 2th’) and heel
6 and 7 of the ‘drawing. The main sole laying machine
pad 221) are connected by a ?exible hose 232. A similar
of FIG. 6 is essentially the same as that previously de
hose is provided for the pads at the other station, but
scribed, although the con?guration has been modernized 25 it is not visible in FIG. 6 because it is on the outer side
by substituting an upright post 152 with a cross beam
of the pads. It will be evident that a hose connection
154 cast integrally with or rigidly secured to the post
between pads, such as that shown at 232, serves to main
v152, in lieu of the inverted U-shaped frame 34, 36 shown
tain exactly equal pressure in both pads acting on a
in FIG. 1. As before, there are two stations with up
single shoe. This alone helps guard against possible
right hydraulic cylinders in base 156, which base again
damage or breakage of a heel.
Additional safeguard in this respect is provided by the
two-stage hydraulic action illustrated in FIG. 5 of the
drawing. When a station is actuated the large rapid
is shown without a shoe and down, while the right sta 35 supply of liquid from the accumulator 266 causes a rapid
acts also as a ?uid reservoir.
The stations are controlled
by foot treadles 158 and 16%). The working pressure
may be adjusted by a relief valve 162. The left station
tion is shown with a shoe 178 on a last 172 raised to
the stop posts 174 and 176. These are mounted on a
rail 178, and may be adjusted both horizontally and
rise of the shoe and a rapid forward movement of the
heel pad. Although the latter movement is smaller than
the vertical movement, there is no tendency to damage
the shoe because the force exerted at this time is low,
vertically to ?t diiferent shoes. The pressure gauge is
shown at 186, and emergency release buttons or safety 10 and as soon as the heel pad bears against the heel of
buttons are marked 182. The adjusting dials for the
the shoe, the remaining ?uid is diverted to the main
clocks or timers are shown at 184. The ?exible hoses
186 lead to actuators 188 which are pivotally mounted
at 190. Control valves 192 are provided ahead of the
cylinder and helps raise the shoe. Moreover, by adjust
described, and its operation is the same as previously
of a squeeze after all of the parts have settled into their
ing the valve 192 leading to the heel pad actuator, the
motion of the latter may be slowed ‘for better timing
45 relative to the vertical motion produced by the main
hoses 186.
The arrangement therefore is the same as previously
actuator. A high pressure is exerted only in the form
described. The ?ow diagram given in ‘FIG. 5 is fully
?nal position, and at that time there is no tendency to
applicable to the shoe machine of FIG. 6, except for 50 damage the shoe because the squeeze pressure is exerted
appropriate change of reference numerals.
equally in all directions.
However, FIGS. 6 and 7 illustrate an important differ
ence in respect to the shoe pads, and in their relation
to the machine. Instead of solid rubber or equivalent
The interconnection of the two actuators means that
the hydraulic pressure in both is maintained alike, and
the hose connection between the sole and heel pads means
yieldable material, the present machine uses two relatively 55 that the direct surface pressures applied on the shoe are
movable ?uid ?lled pads for each shoe. The ?rst pad
maintained alike.
208 is shaped to bear against the sole and heel breast
If it be desired to use the machine for ordinary sole
of a shoe placed thereover, and for this purpose the
laying, the valve 24 may be closed completely, and the
bottom wall 202, two side walls 204, and one end or
shoe pad may be removed and replaced by an ordinary
outer wall 2% are all rigid, and are preferably a metal 60
casting.
The top wall .208 and the inner end Wall 210
one.
It is believed that the construction and operation of
my
improved machine for sole and heel breast ?ap lay~
of rubber which are tightly ‘secured to the cast body,
ing,
as well as the advantages thereof, will be apparent
as by means of ?exible metal strips 212 (FIG. 7) and
a continuous series of bolts 214. A wire may he placed 65 from the foregoing detailed description. It will ‘also be
(FIG. 6) are yieldable, being for example laminations
apparent that while I have shown and described my
beneath the strips 232 to act as a ridge for better sealing
invention in a preferred form, changes may be made in
action. An additional sheet of rubber or leather 216
the structures shown without departing from the scope
may be put into position to take some of the friction
of the invention, as sought to be de?ned in the following
and wear, and to shield the upper ends of the bolts 214.
70 claims.
The second pad 220 is shaped to bear against the back
of the heel of the shoe. Here again there is a cast body
In the claims, the term, “yieldable sole and heel breast
and a yieldable covering wall or diaphragm secured with
pad” is intended to apply generically to'a one piece pad
a leakproof ?t by sealing strips and a series of bolts or
as in FIGURE 6 and a two piece pad as in FIGURES 2
screws. The pads are relatively movable, and in the 75 and 3.
3,092,860
8
I claim:
1. A shoe machine for simultaneously laying a sole and
heel breast ?ap, said machine comprising a stationary base,
a stationary head mounted over said base, an upright
both cylinders, means to adjust the movement of one
relative to the other, and means including a ?exible hose
connecting the water ?lled interiors of the two pads in
hydraulic cylinder in the base, a plunger in said cylinder,
a sole ‘and heel breast pad carried by the plunger for
movement toward the head, adjustably located stop posts
6. A shoe machine comprising a ?rst ?uid actuator of
the cylinder and piston type to exert a pressure between
order to equalize the pressures therein.
on the head to arrest the upward movement of a lasted
the sole and upper of a lasted shoe in a direction gener
ally perpend-icular to the sole, a second ?uid actuator of
shoe resting on the pad, a heel back pad also carried by
the cylinder and piston type to exert pressure between the
the plunger for movement toward the head but being hori 10 heel breast ?ap and the heel of said shoe in a direction
generally parallel to the sole of the shoe, means including
zontally movable toward or away from the ?rst pad, a
second hydraulic cylinder and plunger bodily carried by
a ?exible hose connected to the second actuator to apply
the same hydraulic pressure simultaneously to both ac
the ?rst plunger and arranged to move the heel back pad
tuators, means to adjust the rate of movement of one
horizontally, means including a ?exible hose connected
to the second cylinder to apply hydraulic pressure simul 15 actuator relative to the other actuator, means to initially
apply low pressure ?uid simultaneously to both actuators
taneously to ‘both cylinders, and means to adjust the rate
for rapid motion with little force, and means effective
of movement of one relative to the other.
thereafter to raise the ?uid pressure to cause a high pres
2. A shoe machine comprising two relatively movable
sure squeeze by both actuators.
?uid ?lled pads, the ?rst pad being shaped to bear against
7. A shoe machine comprising a yieldable sole and
the sole and heel breast ?ap of a shoe, the second pad 20
heel breast pad shaped to ?t in the space in front of the
being shaped to bear against the back of the heel of the
heel as well as beneath the sole, a yieldable heel back
shoe, a ?rst ?uid actuator of the cylinder and piston type
pad shaped to ?t behind the heel, a ?rst ?uid actuator to
'to carry both pads and'to exert a pressure against a lasted
carry both pads ‘and to exert a pressure against a lasted
shoe in a direction generally perpendicular to the sole, a
second ?uid actuator of the cylinder and piston type con 25 shoe in a direction generally perpendicular to the sole,
nected to the heel pad to exert a pressure in a direction
' a second ?uid actuator connected to the heel back pad to
exert a pressure in a direction generally parallel to the
generally parallel to the sole, means to apply pressure
sole, means including a resiliently actuated ?uid accumu
?uid simultaneously to both actuators, and means includ
lator to initially apply low pressure ?uid simultaneously to
ing a ?exible hose connecting the ?uid ?lled interiors of
the two pads in order to equalize the pressures therein. 30 both actuators for rapid motion with little force, and
means effective thereafter to raise the ?u-id pressure to
3. A shoe machine for simultaneously laying a sole
cause a high pressure squeeze by both actuators.
and heel breast ?ap, said machine comprising two rela
8. A shoe machine comprising a stationary base, a sta
tively movable water ?lled pads, the ?rst pad being shaped
tionary head mounted over said base, an upright hydraulic
to bear ‘against the sole and heel breast ?ap of a shoe, the
cylinder in the base, a plunger in said cylinder, a sole
second pad being shaped to bear against the back of the
and heel breast pad carried by the plunger for movement
heel of the shoe, a ?rst hydraulic actuator to carry both
toward the head, adjustablylocated stop posts on the head
pads and to exert a pressure against a lasted shoe in a
to arrest the upward movement of a lasted shoe resting on
direction generally perpendicular to the sole, a second
the pad, a heel back pad also carried by the plunger for
hydraulic actuator connected to the heel back pad to exert
movement toward the head but being horizontally mov
a pressure in a direction generally parallel to the sole,
able toward or away from the ?rst pad, a second hydraulic
means to apply hydraulic ?uid simultaneously to both
actuators, means to adjust the movement of one actuator
relative to the other, and means including a ?exible
hose connecting the water ?lled interiors of the two
pads in order to equalize the pressures therein.
cylinder and plunger bodily carried by the ?rst plunger
and arranged to move the heel back pad horizontally,
means including a ?exible hose connected to the second
cylinder to apply the same hydraulic pressure simultan
4. A shoe machine comprising a stationary base, a sta 45 eously to both cylinders, means to adjust the rate of move
ment of one plunger relative to the other plunger, means
tionary head mounted over said base, an upright cylinder
to initially apply low hydraulic pressure simultaneously
in the base, a plunger in said cylinder, a sole and heel
breast pad carried by the plunger for movement toward
to both cylinders for rapid motion with little force, and
the head, adjustably located stop posts on the head to
arrest the upward movement of a lasted shoe resting
on the pad, a heel back pad also carried by the plunger
for movement toward the head but being horizontally
movable toward or away from the ?rst pad, a second cyl
means effective thereafter to raise the hydraulic pressure
to cause a high pressure squeeze by both actuators.
9. A shoe machine comprising two relatively mov
inder and plunger bodily carried by the ?rst plunger and
able ?uid ?lled pads, the ?rst pad being shaped to bear
against the sole and heel breast ?ap of a shoe, the second
being shaped to bear against the back of the heel of the
arranged to move the heel back pad horizontally, said pads 55 shoe, a ?rst ?uid actuator to carry both pads to exert
a pressure against a lasted shoe in a direction generally
being ?uid ?lled pads, means including a ?exible hose
perpendicular to the sole, a second ?uid actuator con
connected to the second cylinder to apply pressure simul
nected to the heel pad to exert a pressure in a direction
taneously to both cylinders, and means including a ?exible
generally parallel to the sole, means to initially apply low
hose connecting the ?uid ?lled interiors of the two pads
60 pressure ?uid simultaneously to both actuators for rapid
in order to equalize the pressures therein.
5. A shoe machine for simultaneously laying a sole
motion with little force, means effective thereafter to
and heel breast ?ap, said machine comprising a stationary
raise the ?uid pressure to cause a high pressure squeeze
base, a stationary head mounted over said base, an up
by both actuators, and means including a ?exible hose
right hydraulic cylinder in the base, a plunger in said
connecting the ?uid ?lled interiors of the two pads in
cylinder, a sole and heel breast pad carried by the plunger 65 order to equalize the pressures therein.
for movement toward the head, adjustably located stop
10. A shoe machine comprising a stationary base,
posts on the head to arrest the upward movement of a
a stationary head mounted over said base, an upright cyl
lasted shoe resting on the pad, a heel back pad also car
inder in the base, a plunger in said cylinder, a sole and
ried by the plunger for movement toward the head but
heel breast pad carried by the plunger for 'movement
being horizontally movable toward or away from the ?rst 70
pad, a second hydraulic cylinder and plunger bodily car
riedby the ?rst plunger and arranged to move the heel
back pad horizontally, said pads being water ?lled pads,
toward the head, 'adjustably located stop posts on the
head to arrest the upward movement of a lasted shoe
resting on the pad, a heel back pad also carried by the
plunger for movement toward the head but being hori
cylinder to ‘apply hydraulic pressure simultaneously to 75 zontally movable toward or away from'the ?rst pad,'-a
means including a ?exible hose connected to the second
3,092,860
9
10
second cylinder and plunger bodily carried by the ?rst
cylinders for rapid motion with little force, and means
plunger and arranged to move the heel back pad hori-
effective thereafter to raise the ?uid pressure to cause a
zontally, said pads being ?uid ?lled pads, means including
a ?exible hose connecting the ?uid ?lled interiors of the
high pressure squeeze by both actuators.
References Cited in the ?le of this patent
two pads in order to equalize the pressures therein, means 5
including a ?exible hose connected to the second cylinder
to initially apply low pressure simultaneously to both
FOREIGN PATENTS
1,168,417
France ______________ __ Dec. 8, 1958
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