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Патент USA US3046588

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July 31, 19762
J. 5. KAMBORIAN ET AL
3,046,578
CONTROL FOR LASTING MACHINE
4 Sheets-Sheet 1
Filed March 8, 1960
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INVENTORS
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July 31, 1962
J. s. KAMBORIAN ET AL
3,046,578
CONTROL FOR LASTING MACHINE
4 Sheets-Sheet 2
Filed March 8, 1960
VI/ Em i‘
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INVENTORS
Jaw? .jilawzéarzm
July 31, 1962
J. 5. KAMBORIAN ET AL
3,046,578
CONTROL FOR LASTING MACHINE
4 Sheets-Sheet 3
Filed March 8, 1960
All?
INVENTORS
V?
laiizéarz'azz
yWQ/ZW/E
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. Var/lie?
r
July 31, 1962
J. s. KAMBORIAN ETAL
‘
3,046,578
CONTROL FOR LASTING MACHINE
Filed Marqh 8, 1960
4 Sheets-Sheet 4
Varmég'p'er
Q 5 I 6 , ,a
if!’ J
United States Patent 0 Ice
'
3,046,578
Patented July 31, 1962
l
2
3,046,578
treme upper position. The bedding pressure is automati
cally terminated by rearward movement of the control
CONTROL FOR LASTING MACHXNE
Jacob S. Karnborian, West Newton, Mass. (% Inter
national Shoe Machine Corp, 1380 Soldiers Field Road,
Brighton, Mass), and Karl F. Vornberger, Somerville,
Mass; said Vornherger assignor to said Kamborian
Filed Mar. 8, 1960, Ser. No. 13,607
26 Claims. (Cl. 12—12.4)
arm which removes the cam from engagement with the
lever.
The invention will now be described in greater detail
with reference to the accompanying drawings wherein:
FIG. 1 is a vertical section through a toe lasting ma
chine, showing the wipers, shoe support and a part of the
control;
FIG. 1a is a section of one of the control valves, show
This invention relates to lasting machines of the kind 10
ing a ?uid motor diagrammatically connected thereto;
shown in the Weisz patent, No. 2,888,693, June 2, 1959,
FIG. 2 is a fragmentary elevation near the butt of the
and more especially to improvements in control of ma—
handle, to much larger scale, showing the restoring switch
chines of this kind.
in section;
In the aforesaid patent, the wipers and the shoe sup
FIG. 3 is a section taken on the line 3-3 of FIG. 2;
port are arranged to be moved relatively to each other, 15
FIG. 4 is an elevation of the pusher and ?uid motor,
the wipers in a horizontal plane, forwardly and rear
shown in relation to the control handle, the latter being
wardly, and the support in a vertical plane, upwardly and
shown at its rearmost position and a position forwardly
downwardly. A ?uid pressure motor is operably con
nected to the wipers and another to the shoe support
thereof;
FIG. 4a shows the knee action of the switch arm;
and there are valves controlled by a common handle, 20
FIG. 5 is an end view of FIG. 4, showing the guide in
which is movable horizontally, forwardly and rearwardly,
and rotatable about its longitudinal axis to move the
section;
'
FIG. 6 is an elevation of'the'heel clamp pin and op-}
valves in directions to produce forward and rearward
erating means;
movement of the wipers and upward and downward move
FIG. 7 is a digrammatic layout of that part of the fluid
ment of the support. As shown in that patent, after the 25
pressure system controlling the movement of the control
lasting operation has been performed to the satisfaction
handle and heel clamp;
FIG. 8 is a diagrammatic layout of that part of the ?uid
pressure system controlling application of increased bed
wardly by pushing the handle rearwardly to permit re
moving the shoe, and then the handle is rotated clock 30 ding pressure;
of the operator, the support is ?rst lowered by rotating
the handle counterclockwise, the wipers are moved rear
wise to re-elevate the support, so that it will be ready
FIG. 9 is an isometric view of the control handle and
associated parts includingthe valve for effecting horizontal
for the next operation.
movement of the wipers; and
The principal objects of this invention are to provide
FIG. 10 is a longitudinal section through the ?ow-con
means for automatically releasing the ?nished shoe and
5
restoring the wipers and support to their initial position in 35 trol valve of the heel pin operating motor.
Referring to FIG. 1, there are wipers 10 and a wiper
readiness for the next operation. Other objects are to
carrying slide 11 arranged on a frame 12 to move in a
provide simple and yet effective means for restoring the
horizontal plane forwardly and rearwardly, and a sup
machine to its initial position without interfering with
port comprising a toe rest 14 and heel pin ‘16 mounted
the normal operation of the wipers and support in car
rying out the lasting operation. Still another object is to 410 on a carriage 17 for movement vertically to raise a shoe
into a position to be operated upon by the wipers. The
provide means for applying a bedding pressure to the
slide 11 is operably connected to a motor 18 and the
bottom following lasting, which is higher than normal
carriage 17 is operably connected to a motor 20;
accordance with the aforesaid patent, there are valves
tuator mounted on the control arm which is operable 45 V1 and V2 for controlling the ?ow of ?uid to the motors
and a single handle 22 movable forwardly and rearwardly
without changing the position of the control arm, to ef
in a horizontal plane and rotatable about its longitudinal
fect movement of a pusher in a direction to move the
axis to produce forward and rearward movement of ‘the
handle rearwardly, and means carried by the pusher op
wipers and up and down movement of the support. The
erable to effect movement of the support in a direction
valve V1 (FIG. 9) is fastened to the underside of a
to lower the shoe away from the undersides of the Wipers,
lasting pressure.
‘
As herein illustrated, this is accomplished by an ac
prior to engagement of the pusher with the handle, thus
horizontal bracket plate 13 and the latter, in turn, is
fastened to the underside of the slide 11 by a vertical‘
bracket plate 15, so that the valve V1 moves forwardly
and rearwardly with the slide. A block 131 is secured
on the pusher is a cam arranged to engage a switch just
before the pusher reaches the handle and, by actuation 55 to the plate 13 and the handle 22 is connected to the
block by way of a pivoted arm 23. The arm 23 contains
thereof, to shift the valve supplying pressure ?uid to the
a slot 25 through which projects a pin 21 fastened to a
?uid motor which moves the support, in a direction to
stem ‘3 at the end of the valve spool 5 of the valve V1
lower the support and to release the switch as the wipers
(FIG. la).
'
approach their rearmost positions, to permit the valve to
The valves are of the balanced type disclosed in the
be returned to its initial position. - There is a heel pin 60
aforesaid patent, so that when force is removed the valve
and ?uid motor for tilting the latter in a direction to
spools will return to their neutral position. »
hold the toe of the shoe against the toe rest, and the
The valve V2 (FIG. 1) is movable with the carriage
aforesaid valve, when actuated to move the pusher rear
and rotation of the handle 22, about its axis, operates
wardly, simultaneously vents ?uid at the rear end of the
?uid motor to release the shoe. The means for supplying 65 through a cam 7 and linkage 9 to displace the spool in
the valve V2, thereby to supply ?uid pressure to one end
bedding pressure includes a lever disposed with one end
or the other of the motor 20. A spring 19 on the spool
adjacent the handle and the other operably associated
causes it to follow the linkage during counterclockwise
with means for controlling movement of a valve, in such
rotation of the handle.
fashion as to supply additional pressure to the ?uid motor
The valves V1 and V2, the former being shown in de
for the support. A cam on the control arm operates the 70
tail in FIG. la, are supplied with pressure ?uid from a
lever and the latter is so located that it effects opera
‘suitable source by way of a reducing valve R1,, by means
tion of the valve only when the cam is rotated to its ex
to initiate downward movement of the support just be
fore the wipers begin to move rearwardly. The means
3,046,578
0
4
of which a predetermined low pressure is supplied to the
motors l8 and 20 for the lasting operation.
into engagement with its linkage 9 in readiness for the
next operation.
As previously indicated, it is also desirable to retract
0
The heel supporting pin 16, herein shown, is movable
the heel lock and so pressure ?uid is vented from the
forwardly, after the last has been placed on it, by a pair
of meshing gear sectors 24, 26 (FIG. 6), the latter being UK rear end of the heel lock motor 32 as the support is
rotated by a link 28 connected to a rod 30 protruding
from a ?uid motor 32. By admitting ?uid pressure to
the rear end of the ?uid motor 32, the last is biased
downwardly so as to hold its toe pressed against the toe
rest 14. The piston, within the motor, is spring-returned
when the ?uid pressure is vented.
With a machine, such as just described, after the last
ing operation has been performed, to the satisfaction of
lowered to release the last.
Referring to FIG. 7, there are shown the piston 42,
with a portion of its rod 40 protruding from it, the heel
lock motor 32, with a portion of its rod 30, and two
valves V3 and V4. Valves V3 and V4 are connected to
each other ‘by a pipe 64, and by branch pipes 60 and 62
to a line 58 which, in turn, is connected to the source
by way of a regulator R set to supply a higher pressure
than that supplied to the motors 18 and 20. Pipes 66,
the operator, the heel actuating motor 32 is ?rst actuated
66a and 68 connect the valve V4 with opposite ends of
to retract the heel pin 16, then the support, which in
the cylinder 42 and a pipe 66b connects the pipe 66 with
cludes the toe rest and heel pin, is lowered by rotating
the rear end of the heel motor 32. A ?ow control valve
the handle 22 about its axis, and ?nally the wipers are
69 (FIGS. 7 and 10) is placed in the line 66b to retard
moved rearwardly to their rearmost position to permit
venting of the cylinder 32, so as to prevent the last from
the shoe to be removed. The support is then moved back
up to its upward position by rotation of the handle to 20 being swung upwardly against the underside of the wipers
as they are being retracted. As illustrated (FIG. 10), the
make the apparatus ready for the next operation. It is
valve 69 contains a ball 71 which allows free ?ow in one
the purpose of this invention to relieve the operator of
direction, but checks ?ow in the opposite direction and
the necessity of returning the component parts of the
an adjustable needle 73 which permits ?ow in both direc—
machine to their initial position, after each lasting opera
tions.
tion, to make the machine ready for the next operation.
The three-Way valve V3 is solenoid-controlled and the
To this end a pusher 34 (FIGS. 1 and 4) is mounted in
solenoid is energized by a rotatable collar 70 (FIGS. 2
a horizontal position on a level with the axis of the
and 3), mounted on the handle 22. The collar 70 is
handle 22, as shown in FIG. 4, on lugs 36—36, at one
supported for rotation on the handle by a circular bush~
end of a slide 38, the other end being connected to a pro
ing 72 fastened to the handle and is normally held in a
truding end of a piston rod 40 mounted in a cylinder 42.
?xed position by a spring-pressed detent 74 engaged
The slide is supported in a guide 44 fastened to a bracket
within one of a pair of notches 76 in the inside of the
plate 46 bolted to the frame 12. The pusher is shown
in its inoperative position in FIG. 4, forwardly of the
handle 22, that is, between the handle and the shoe sup
port. As thus situated, the operator can move the handle
without interference through the distance a which repre
sents the travel of the handle from its rearmost position,
at the left, to its foremost position, at the right. Thus
the operator has complete control for effecting forward
and rearward movement of the wipers and also for rais 40
ing and lowering the support. When the Wiping has been
performed satisfactorily, the operator admits pressure to
the cylinder 42 in a direction to retract the slide 38 and
hence to move the pusher 34 rearwardly into engage
ment with the handle at its forward position at any
given time and to push it to its rearwmost position. ‘The
end of the pusher is concave so as to conform to the
cylindrical surface of the handle, is threaded to permit ad
justment and contains a curf to receive a screw driver for
effecting adjustment.
Prior to rearward movement of the wipers, for the pur
pose of preventing the Wipers from scut?ng the margin,
and perhaps pulling it away from the insole, the support
should ‘be lowered. Accordingly, a cam 48 is mounted
on the underside of the slide 38 for engagement with a
roller 50 at the upper end of a switch arm 52, which is
spring-biased. Movement of the cam 48 toward the left
(FIG. 4) will actuate the arm 52 to close the switch 54
with which it is associated. The switch in turn energizes
a solenoid 56 (FIG. 1), which is connected to the spool
of the valve V2 and moves the spool in the valve in a
direction to lower the support. As will be seen by refer
ence to FIG. 4, the cam 43 engages the switch arm 52
before the pusher 34 engages the control handle 22, so
that lowering of the support‘ takes place just before the
wipers are moved rearwardly. The arm 52 is articulated
(FIG. 4a) and normally held straight by a spring 53,
collar. The bushing has an opening or recess 78 to make
room for a microswitch 30, which is fastened to the
bushing. The microswitch has a spring arm 82 carrying
a roller 84 which bears against a cam surface 86 inside
the collar. By rotating the collar on the handle in a
counterclockwise direction, the switch may be closed.
Closing the switch energises the coil of the three-way
valve V3, permitting air from the source 53 to flow
through the pipe lines 60 and 64 to the upper end of the
spring-pressed spool 33 situated in the four-way valve
V4 (FIG. 7), the spool 88 being normally held upwardly
by the spring 96. Depression of the spool 88 permits air
‘from the line 53 to flow through the pipe 62, the four-way
valve V4 and the pipe 66 to the rear end of the cylinder
42, and to flow through the pipe 66b, to the rear end of
the motor 32, to move the pusher forwardly to an out
of-the-way position and to move the heel locking pin
into locking position. Air is vented from the forward
end of the cylinder 42 through pipe 68 and port 41.
Movement of the collar in the opposite direction to open
the switch 80 de-energizes the solenoid of valve V3, so
that air is cut off from valve V4, thus allowing the
spring 90 to return the spool 88 to its upper position.
Air then ?ows through pipe 62, valve V4 and pipe 68
to the forward end of the cylinder 42, so as to move the
piston in the cylinder 42 rearwardly. The air at the rear
end of the cylinder 42 and the rear end of the motor 32
is vented through pipes 66a, 66b and 66 and port 43.
As previously indicated, when the slide 38 begins to move
rearwardly it engages the switch arm 52, so as to energize
the coil 56 to move the spool of valve V2 in a direction
to lower the support and after it passes the switch arm
52 the spool V2 is moved upwardly by the spring 19
into engagement with the linkage 9. A manually oper
able two-way shut-off valve 104 may be provided in
the line 68.
so as to lie in the path of the cam 48. During the left
The foregoing control provides a very simple and ef
to.right movement of the cam 48 the upper section of
the arm 53 folds clockwise so that the cam 48 passes 70 fective adjunct to the simpli?ed control of the patented
structure, improving the latter by returning the instru
over the roller 52 without actuating the switch.
mentalities to their inoperative position after the lasting
As the pusher 34 moves the control handle 22 rear
has been accomplished automatically, so as to relieve the
wardly, the cam 48 passes over the switch arm 52, re
operator of this operation. The operator may avail him
leasing it and thereby de-energizing solenoid 56. This al
lows the spring 19 to return the spool in the valve V2 75 self of this control or not as he desires since it does
3,046,578
5
The switch 80 is now opened by the ‘operator; This
not interfere with the normal operation of the machine.
It is also desirable to be able to apply a bedding pres
sure to the bottom of the last following the wiping opera
tion and thereafter automatically to release the bedding
pressure and lower the last, as previously explained, to
permit retraction of the wipers. To this end a lever 92
(FIG. 8) is pivotally mounted at 94 on the frame with
causes the piston 40 to be retracted within the cylinder
42 thereby causing the pusher 34 to push the handle22
leftwardly from the solid line position of FIG. 4 to
the dotted line position. The leftward movement of the
handle causes the withdrawal of the wipers from over the
shoe bottom. Soon after the handle commences its
retractive movement, the cam 7 which is mounted on the
handle moves out from under the lever 92 thereby caus
one end adjacent the cam 7 and its other end adjacent
a microswitch 96. The microswitch is so located that
ing the switch 96 to open and the application of increased
bedding pressure through the line 102 to cease. Prior to
the engagement of the pusher 34 with the handle 22, the
cam 48 closes the switch 54 to energize the solenoid 56
to lower the spool of the valve V2 to thereby lower the
its actuating pin 98 will be depressed only when the cam
7 is rotated to its top position so as to tip the arm 92
clockwise and hence to depress the actuating pin. De
pression of the actuating pin energizes a solenoid 100
of a two-way valve V5, which supplies the higher pres
sure vfrom the line 58 (FIG. 7), through a line 102, to
shoe support while switch 54 is closed. After the pusher
the lower end of the motor 20, so that now the support
34 has commenced to push the handle 22 leftwardly and
is forced upwardly against the underside of the wipers
the wipers have been withdrawn from over the shoe
bottom, the cam 48 passes the switch arm 52 of the switch
under the combined pressure supplied to the motor from
the source of pressure through regulating valve R1 and
valve V2 and from the source through the regulator R
and the valve V5. The increased pressure will continue
54 thereby opening the switch and deenergizing the sole
noid 56. This enables the spool of the valve V2 to be
raised by the spring 19, thereby causing the motor 20 to
raise the shoe support until the valve spool is again de
pressed by the engagement of the valve spool with the
linkage 9. The departure of the cam 48 from the switch
to be applied as long as the lever is held tilted so as to
depress the actuating pin of the microswitch. In accord
ance with the previous description, however, as soon as
the collar 70 is rotated, the pusher moves the handle 25 arm 52 thus allows the shoe support to rise to the position
it occupied prior to the closing of the switch 54 by the
rearwardly, which in turn moves the cam from beneath
cam 48. During the aforesaid movements the cam 7 re
the lever arm 92, thereby releasing it. Releasing the arm
mains in the position shown‘in solid lines in FIG. 8.
92 allows the switch 96 to open and this in turn de-ener
_ The opening of the switch 80 also enables the spring in
gizes solenoid 100. De-energization of solenoid 100' closes
the cylinder 32 to retract the piston 30 into the cylinder.
the valve V5 thus cutting o? the high pressure to the
The flow control valve 69 delays the retraction su?iciently
motor 20. At about this time, the solenoid 56 is en
to enable the wipers to be withdrawn prior to the last
ergized, as previously explained, to draw the support
being swung upwardly of the toe rest 14.
down. By placing thelever arm 92 in- such a position
It thus becomes apparent that the opening of the switch
that the cam does not engage it until it is rotated to its
highest position, the operator has full control for manipu 35 80 automatically causes the shoe to be lowered followed
by a withdrawal of the wipers from over the shoe bot
lation of the support during wiping at normal pressure,
tom, and causes the shoe to be reraised and the toe of the
‘but at any time that he wants to he can apply bedding
shoe to be swung upwardly of the toe rest 14 after the
pressure by rotating the handle in a counterclockwise
wipers have been withdrawn from over the shoe bottom.
direction and correspondingly release it by rotating it in
40
Should it be found desirable to move the shoe support
In the use of the improved control forming the instant
invention, the last having a shoe upper and insole mounted
thereon is placed on the heel pin 16. At this time the
switch 80 is open. As a result the piston 40 is retracted
within the cylinder 42 and the handle 22 is in the rear 45
and the wipers after the wipers have completed their
lasting operation by manipulating the handle 22 as de
scribed in Patent No. 2,888,693, it is only necessary to
a clockwise direction.
ward dotted line position shown in FIG. 4, having been
pushed to that position by the pusher 34. The piston 30'
close the valve 104 when the piston 40 is in its extended
position as shown in FIG. 4. The closing of the valve
104 shuts olf the air supply in the pipe 68 so that the open
‘ ing of the switch 80 will not move the piston 40.
The
pusher 34 will thus remain in the out of the way position
shown in FIG. 4, and the switch 80 may be closed to urge
is now retracted within the cylinder 32 so that the toe
end of the shoe is not pressed against the toe rest 14-.
The switch 80 is now closed. This causes the piston 40 50 the shoe against the toe rest at the beginning of the last?
mg operation and opened to raise the shoe upwardly from
to be projected from the cylinder 42 to thereby move the
the toe rest after the wipers have been withdrawn from
pusher 34 to the position shown in FIG. 4, and the piston
over the shoe bottom.
30 to be projected from the cylinder 32 to urge the toe of
It should be understood that the present disclosure is
the shoe down upon the toe rest 14. The control handle
22 may now be manipulated in the same manner as shown 55 for the purpose of illustration only and that this inven
tion includes all modi?cations and equivalents which fall
in Patent No. 2,888,693 to move the wipers and the shoe
within the scope of the appended claims.
support, forward and rearward movement of the handle
We claim:
'
'
‘
producing a corresponding movement of the wipers and
1. In a lasting machine, a shoe support and wipers,
rotational movement of the handle about its longitudinal
aids in one direction or the other producing a correspond 60 means mounting the shoe support and wipers for move-l
ment relative to each other, power operated means for
ing raising or lowering of the shoe support. In accord
effecting vertical movement of the shoe support, power
ance with the conventional practice, the shoesupport is
operable means for effecting horizontal movement of the
moved to a position wherein the upwardly facing surface
wipers, manually operable means for controlling said
of the insole is substantially level with the undersurfaces
of the wipers. The wipers are then moved forwardly 65 power operated means thereby to enable the wipers to be
moved over the supported shoe and to enable the shoe to
across the shoe bottom to wipe or fold the lasting margin
of the upper down against the insole, and at the same
time the shoe support is raised to provide pressure be
be pressed upwardly against 'the wipers, and separate
control means operable, when the shoe has been'pressed
against the wipers by the manipulation of said manually
tween the insole and the advancing wipers. When the
wipers have been advanced to their forwardmost position, 70 operable means, to automatically lower the shoe support
the handle 22 may be rotated to raise the support to apply
a maximum pressure to the wipers. This will bring the
cam 7 to the FIG. 8 position shown in solid lines thereby
closing the switch 96 to cause increased bedding pressure
to be applied between the shoe bottom and the wipers.
and move the wipers away from the shoe support. .
v
'
2. Apparatus according to claim 1, wherein said sepa7 '
rate control means operates to raise‘ the shoe support
when the wipers have moved a predetermined distance ,
3
75 away from the shoe support.
3,046,578
8
7
ward movement of the handle in response to actuation of
3. In a toe lasting machine: a shoe support, for sup
porting a last having a shoe mounted thereon, compris
the ?rst means.
ing a toe rest; wiper means; means for urging the shoe
10. In a lasting machine, wipers and a shoe support,
means mounting the wipers and support for relative move
downwardly against the toe rest; ?rst power operated
ment, a ?rst motor and a second motor respectively con
means for effecting forward and rearward movement of
the wiper means; second power operated means for effect
nected to the wipers and support to effect movement there
of, a ?rst valve for controlling the ?ow of pressure ?uid
to the ?rst motor, a second valve for controlling the ?ow
ing movement of the shoe urging means so as to move the
shoe toward and away from the toe rest; manually oper
of pressure ?uid to the second motor, a handle, said ?rst
able means ‘for controlling the ?rst power operated means
to enable the wipers to be moved over the shoe; and con 10 valve being operable by forward and rearward movement
of the handle to advance and retract the wipers, and said
trol means operative to actuate the ?rst and second power
operated means to move the wipers away from the shoe
support and to move the shoe away from the toe rest
second valve being operable by rotation of the handle to
shoe urging means so as to move the shoe toward and
away from the toe rest, manually operable means for con
to the ?rst motor, a second valve for controlling the ?ow
of pressure ?uid to the second motor, a handle, said ?rst
trolling the ?rst and second-mentioned power operated
valve being operable by forward and rearward movement
raise and lower the support, power operable means for
returning the handle from a forward position to its rear
independently of any manual manipulation of the manual
ly operable means.
15 most position, and thereby to retract the wipers, means
operable by the last-named means to lower the support
4. A toe lasting machine according to claim 3, wherein
prior to rearward movement of the Wipers and then to
there is means for delaying operation of the second power
raise the support to its initial position, and means on the
operated means until the wipers have been withdrawn
handle operable without manual movement of the handle
from over the shoe.
to effect operation of the power operable means.
5. In a toe lasting machine, a shoe support comprising
11. In a lasting machine, wipers and a shoe support,
a toe rest, wipers, means for urging the shoe downwardly
means mounting the wipers and support for relative move
against the toe rest, power operated means for effecting
ment, a ?rst motor and a second motor respectively con
vertical movement of the shoe support, power operated
nected to the wipers and support to effect movement there
means for effecting horizontal movement of the wipers,
of, a ?rst valve for controlling the ?ow of pressure fluid
power operated means for effecting movement of the
of the handle to advance and retract the wipers, and said
means thereby to enable the wipers to be moved over the
supported shoe and to enable the shoe to be pressed up 30 second valve being operable by rotation of the handle to
raise and lower the support, power operable means mov
wardly against the wipers, and separate control means
able rearwardly to return the handle to its rearmost posi
operative in one position to cause the third-mentioned
tion, from any given position forwardly thereof, a collar
power operated means to urge the shoe against the shoe
on the handle, rotation of which initiates operation of the
support and in another position automatically to lower the
shoe support, move the wipers away from the shoe sup
port, and render the shoe urging means ineffective when
the wipers are withdrawn from over the shoe.
00 0 power operable means, means movable with the power
l
operable means, operable to effect movement of the second
valve in a direction to lower the support just before the
6. Apparatus according to claim 5, wherein the separate
power operable means engages the handle to move the
control means raises the shoe support when the wipers are
moved a predetermined distance away from the shoe sup
wipers rearwardly and to effect movement of the second
port.
7. Apparatus for lasting the ends of shoes, comprising
reaches its rearmost position.
12. In a lasting machine, wipers and a shoe support,
means mounting the wipers and support for relative move
means mounting a shoe support and wipers for movement
relative to each other, ?uid motors operable to effect move
ment of the wipers forwardly and rearwardly in a pre
determined plane, and the support upwardly and down
wardly in a plane perpendicular to the plane of movement
of the wipers, valves for controlling the ?ow of pressure
valve in a direction to raise the support when the handle
ment, a ?rst motor and a second motor respectively con
nected to the wipers and support to effect movement there
of, a ?rst valve for controlling the ?ow of pressure ?uid to
the ?rst motor, a second valve for controlling the ?ow of
pressure ?uid to the second motor, a handle, said ?rst valve
being operable by forward and rearward movement of
?uid to the motors, a handle for actuating said valves,
the valve controlling ‘flow of pressure ?uid to the wiper 50 the handle to advance and retract the wipers, and said
second valve being operable by rotation of the handle to
motor being operable by pushing and pulling the handle,
raise and lower the support, a pusher arranged to move
and the valve controlling ?ow of pressure ?uid to the sup
port motor being operable by rotating the handle on its
rearwardly and, by such movement, to push the handle
rearwardly to its rearmost position and to return it to an
axis, ?rst means operable to move the handle rearwardly
without manual manipulation, and second means carried 55 out-of-the-way position, a third valve for supplying pres
sure ?uid to the pusher, a collar on the handle, movable
by the handle operable to_ effect actuation of said ?rst
to place “said third valve” in a position to move the pusher
means to move said handle to- its rearmost position, and
rearwardly, and a cam on the pusher operable during the
simultaneously to effect operation of the valve controlling
initial movement of the pusher to effect movement of the
?ow of pressure ?uid to the support motor to cause the
second valve in a direction to lower the support and at
motor to lower the support away from the wipers.
the end of its rearward movement to effect movement of
8. Apparatus according to claim 7, wherein there is
the second valve in a direction to raise the support to its
a last having a shoe mounted thereon supported bottom
up on the support, and there is means on the handle oper
able by rotation thereof to supply additional pressure to
the support motor to bed the bottom of the shoe against
the wipers, said means on the handle being rendered in
operative by retraction of the wipers.
9. Apparatus according to claim 7, wherein there is
a last having a shoe mounted thereon supported bottom
up on the support, and there is means on the handle oper
initial position.
13. A lasting machine according to claim 12, wherein
there is a spring-pressed detent engageable with the collar
to hold it in operative and inoperative position.
14. In a lasting machine, wipers and a shoe support,
means mounting the wipers and support for relative move
ment, a ?rst motor and a second motor respectively con
nected to the wipers and support to effect movement there
of, a ?rst valve for controlling the ?ow of pressure ?uid to
the ?rst motor, a second valve for controlling the ?ow of
pressure ?uid to the second motor, a handle, said ?rst valve
able by rotation when the handle has been advanced to
a position in which the wipers overlie the bottom of the
shoe to supply additional pressure to the support motor
being operable by forward and rearward movement of
to bed the bottom of the shoe against the wipers, said
means on the handle being rendered inoperative by rear 75 the handle to advance and retract the wipers and said sec
3,046,578
10
ond valve being operable, by rotation of the handle, to
tion of the handle to move the support to its highest
position to actuate the second means to apply said higher
pressure to the ?uid motor for the support, said third
raise and lower the support, power operable means for,
returning the handle from a forward position to its rear
most position, thereby to retract the wipers, means on the
named means being rendered inoperative when the handle
handle operable without moving the handle to initiate
is moved rearwardly to retract the wipers for the next
operation of the power operable means, and means oper
able by movement of the power operable means to effect
operation.
movement of the second valve, ?rst in a direction to lower
the support and then in a direction to raise it to its initial
movement, a ?rst ?uid motor and a second ?uid motor
position.
respectively operably connected to the wipers and support
15. In a lasting machine, wipers and a shoe support,
means mounting the wipers and support for relative move
to effect their movement, a source of pressure, a ?rst
valve and a second valve for respectively supplying pres
sure ?uid from said source to the ?rst and second ?uid
motor at a predetermined pressure, a handle operable
ment, a ?rst motor and a second motor respectively con~
nected to the wipers and support to effect movement there
of, a ?rst valve for controlling the ?ow of pressure ?uid to
the ?rst motor, a second valve for controlling the flow of
pressure ?uid to the second motor, a handle, said ?rst valve
being operable by forward and rearward movement of
the handle to advance and retractthe wipers, and said
,
20. In a toe lasting machine, wipers and a support,
means mounting the wipers and support for relative
15
by movement forwardly and rearwardly to move the ?rst
valve in directions to move the wiper forwardly and rear
wardly and having a cam rotatable thereby to move the
second valve in directions to move the support upand
second valve being operable by rotation of the handle to
down, a lever having an'end arranged to be engaged
by the high point of the cam when the latter is rotated
raise and lower the support, a cylinder containing a piston
and a rod protruding from the cylinder, a third valve for
controlling the ?ow of pressure ?uid to said cylinder, an
actuator on the handle operable to effect operation of the
‘
third valve to supply ?uid pressure to the cylinder in a 25
cam, a third valve, and a solenoid operable- by actuation.
direction to move the rod rearwardly, a cam movable
against the underside of the wipers, said switch being
to elevate the support to its uppermost position, a switch
operable by the leverwhen the latter is engaged by the
of the switch to open the third valve to admit ?uid to the
second motor at a higher pressure to bed the support
with the rod, and a switch operable ‘by the cam to effect
rendered inoperable by movement of the handle to its’
movement of the said second valve in a direction to lower
rearmost position to retract the Wipers.
the support and thereafter to effect movement in a direc
21. In a toe lasting machine, wipers and a support for
tion to ire-elevate the support.
30 supporting a shoe bottom~up, means mounting the wipe
16. In a lasting machine, wipers and a shoe support;
ers and support for relative movement, a ?rst ?uid motor
said shoe support including a toe rest and'heel pin, means
and a second ?uid'motor respectively operably connected
mounting the wipers and support for relative movement,
to the wipers and the support to effect their movement,
a ?rst motor and a second motor respectively connected
a source of pressure, means, including a ?rst valve and
to the wipers and support to effect movement thereof, a 35 a second valve respectively connected to the ?rst motor
third motor connected to the heel pin for moving the
pin to a locking position, a ?rst valve and a second valve
for respectively controlling the flow of pressure ?uid to
the ?rst motor and the second motor, a handle, said ?rst
valve being operable by forward and rearward movement
of the handle to advance and retract the wipers and said
second valve being operable, by rotation of the handle,
to raise and lower the support, a slide mounted for move
ment rearwardly and forwardly, and normally occupying
a position forwardly of the foremost position of the
handle, a fourth motor operable to effect rearward move
ment of the slide to engage and move the handle from
a forward position to its rearmost position, a third valve
actuatable to supply ?uid to the third motor and the
fourth motor in a direction to move the heel pin to lock
ing position and to move the slide to its forward position,
a fourth solenoid-operable valve to actuate the third
valve, and a switch on the handle operable in one direction
without moving‘the handle to energize the solenoid, and
in the other direction to de~energize the solenoid.
17. Apparatus according to claim 16, wherein move
ment of the switch in a direction to de-energize the sole
noid vents the heel pin motor and the slide motor.
18. Apparatus according to claim 16, wherein move
and the second motor, for supplying pressure from said
source to the ?rst motor and the second motor at a pre
determined pressure, a handle operable by movement for
wardly and rearwardly to move the ?rst valve in direc-'
tions to actuate the ?rst motor to move the wipers for
wardly and rearwardly, and rotatable to move the sec
ond valve in directions to actuate the second motor to
raise and lower the support, said handle including a cam
having a high point, a lever having an end engageable
by the cam on the handle only when the latter is moved
forwardly to a position in which the wipers overlie the
shoe bottom and the high point has engagement there'
. with, a switch actuated by said lever when the latter is
engaged by the cam on the handle, and a third, solenoid
operated valve energizable by the switch to supply pres
sure from said source to the second motor at a higher
pressure.
22. In a toe lasting machine, wipers and a support
for supporting a last, having a shoe mounted thereon, bot
tom-up, means mounting the wipers and support for rel
ative movement, a ?rst ?uid motor and a second ?uid
motor respectively operably connected to the wipers and
to the support to effect their movement, a source of pres
sure, means including a ?rst valve and a second valve
ment of the switch in the other direction vents the heel 60 for respectively supplying pressure from said source at
a predetermined pressure to the ?rst motor and the sec
pin motor and the latter is spring-loaded so as to move
the heel pin to an unlocking position.
19. In a toe lasting machine, wipers and a support,
means mounting the wipers and the support for relative
movement, ?uid motors operably connected to the wipers 65
ond motor, a handle operable by movement forwardly
and rearwardly to move the ?rst valve in directions to
actuate the ?rst vmotor to move the wipers forwardly
and the support to effect their movement, a source of
?uid pressure, means, for supplying ?uid pressure from
and rearwardly, and rotatable to move the second valve _
in directions to actuate the second motor to move the
support up and down, a cam on the handle rotatable
said source to the motors at a predetermined pressure, a
therewith, said cam having a high point which coincides
handle operable by movement forwardly and rearwardly
with the support at its maximum height, a lever situated
to move said ?rst means in directions to move the wipers 70 in a position to be engaged by the cam only when the
forwardly and rearwardly and by rotation to move said
?rst-named means in a direction to raise and lower the
support, second means operable to supply ?uid pressure
Wipers overlie the bottom of the shoe, and the support is
elevated to its maximum height, said lever being unen
gaged while the wipers and support are being manipulated
from said source to the ?uid motor for the support at
relative to each other to wipe the margin over the shoul
higher pressure, and third means operable by the rota 75 der of the last, a third, solenoid-operated valve for admit~
3,046,578
1l
ting a higher pressure from the source to the second motor
and a switch operable by the lever when the latter is
engaged by the high point of the cam to effect energiza
tion of the third valve, to supply said higher pressure
to the second motor to bed the shoe bottom against the
underside of the wipers.
23. In a toe lasting machine, wiper means, a shoe sup
port, means mounting the wiper means for movement
12
25. In a lasting machine: wiper means; a shoe sup
port; means mounting the wiper means for forward and
rearward movement; means mounting the shoe support
for upward and downward movement; means connected
to said wiper means to effect its forward and rearward
movement; a ?uid operated motor connected to the shoe
support to effect its upward and downward movement;
a ?uid control means for supplying ?uid to said motor at
a predetermined pressure; a handle operable by rotation
for movement in a direction to raise and lower the sup 10 to actuate said motor to raise and lower the support;
second ?uid control means operable to supply ?uid to said
port, ?uid pressure means for raising the support, a man
motor at a pressure higher than said predetermined pres—
ually manipulable handle operable to cause the ?uid
sure; and means operable by the rotation of the handle
pressure means to raise the support at a relatively low
to move the shoe support to its highest position to actuate
pressure thereby forcing the supported shoe against the
wiper means, and means e?ective when the handle has 15 said second ?uid control means to supply said higher
forwardly and rearwardly, means mounting the support
been manipulated to raise the supported shoe against the
wiper means to apply a relatively high pressure against
the support.
24. In a lasting machine: wiper means; a shoe support;
means mounting the wiper means for forward and rear
ward movement; means mounting the shoe support for
upward and downward movement; a ?rst ?uid operated
-motor connected to the wiper means to effect its forward
and rearward movement; a second ?uid operated motor
connected to the shoe support to effect its upward and
downward movement; ?rst ?uid control means for sup
plying pressure ?uid to the ?rst motor and the second
motor at a predetermined pressure; a handle, operable
by movement forwardly and rearwardly to actuate the
?rst motor to move the wiper means forwardly and rear
wardly, and operable by rotation to actuate the second
motor to raise and lower the support; second ?uid con
trol means operable to supply pressure ?uid to said second
motor at a higher pressure than said predetermined pres
sure; and means operable by the rotation of the handle
to move the shoe support to its highest position to actu
ate said second ?uid control means to supply said higher
pressure to said second motor.
pressure to said ?uid motor.
26. Apparatus for lasting the ends of shoes comprising:
wiper means; a support for supporting a last having a shoe
mounted thereon; ?rst powered means operable to e?ect
movement of the wipers forwardly and rearwardly; sec
ond powered means operable to effect movement of the
support upwardly and downwardly; a handle; ?rst control
means operable in response to forward and rearward
movement of the handle to actuate the ?rst powered
means to move the wipers forwardly and rearwardly; sec
' ond control means operable in response to rotation of the
handle to actuate the second powered means to move the
support upwardly and downwardly; and third control
means'operable, when the Wipers are in a forward posi
tion and the’ support in an upward position, to move the
handle rearwardly without manual manipulation to there
by move the wipers rearwardly, and to lower the shoe
support.
References Cited in the ?le of this patent
UNITED STATES PATENTS.
2,888,693
2,926,367
Weisz ________________ .._ June 2, 1959
Gilbride et al. ________ __ Mar. 1, 1960
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