close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2125930

код для вставки
Aug- 9, 1938.
J. 'r. LANCASTER '
2,125,930
MACHINE FOR USE IN APPLYING PRESSURE TO SHOE BOTTOMS
Filed Feb. 11', 1935
2 Sheets-She‘et 1
'
Aug- 9, 1938.
J. T. LANCASTER
2,125,930
MACHINE FOR USE IN APPLYING PRESSURE TO SHOE BOTTQMS
Filed Feb. 11, 1935
2 Sheets-Sheet 2
Fig.2.
/
8(1)“. QM
HESZTWMW'
Patented Aug. 9, 1938
2,125,930.
UNITED. STATES PATENT oFFicE
MACHINE For. UsE ‘IN APPLYING PRESSURE
'
-
‘ T0
SHOE
BOTTOMS
John_ T. Lancaster, Newton, Mass., assignor to
‘United Shoe Machinery Corporation, Paterson,
N. J., a corporation pr New Jersey
,Application‘February ‘11,1935, Serial No. 5,959
19" Claims.‘ (01. 12--36)
This invention relates ‘to improvements; in
In the drawings,
machines for use in applying pressure to. shoe
bottoms and is herein illustrated as-embodied
in a_ machine for cement ‘attaching soles to
5 shoes, for example, in attaching the soles of
compo
shoes.
‘
~
'-
‘
‘
‘
»
,
'
‘
1
'
Fig. 1 is a sectional view of a cement (‘sole at
taching machine of the endless conveyor typ
embodying the present invention; and
; 1
Fig. 2 is a view of the machine as seen from
the rear or the left’ as viewed in Fig. 1.~
‘ V
.
An object of the invention is to provide ‘a
machine havingv improved means for support
ing soles and shoes on shoe receiving pads while
The invention is illustrated herein" as; em
bodied in a cement sole attaching machine of
the so-called conveyor type such, for example,
in sole attaching pressure is being supplied thereto.
A further object of the invention. is tov provide
as that disclosed in British Patent No. 388,464
in conjunction with said supporting means an
improved construction whereby the mounting of
soles and shoes on the pads and removing them
15 therefrom may be facilitated. ‘
The illustrated machine is of that‘ type- in
which a plurality of shoe receiving pads is car
ried in pad boxes connected in an endless series
to form a conveyor. As illustrated herein and
l‘ 20 in accordance with one feature of the invention,
each pad box is mounted for heightwise move
ment in a rigid upright yoke or, frame provided.
with ?xed abutments arranged to engage a‘ shoe
mounted on the pad and to support the shoe
25 against the thrust of thesole attaching pressure.
In accordance with another feature of the in
vention, each frame carries mechanism for 'ad
justing‘ the pad box heightwise ‘of the frame
toward or' away from the ‘?xed abutments and.
:50 means is provided at the operating station» for
actuating the adjusting mechanism on each
frame, thereby increasing the space between
the pad and the abutments when a shoe is to
be mounted on or removed from ‘the ‘pad, and
and in which a plurality of pressing devices
including pad carrying members or pad boxes
are interconnected‘ for intermittent movement
in an upstanding frame, the pad boxes being
presented successively at an operating station to
receive outsoles and shoes to which the outsoles
are to be attached by cement. The illustrated
machine comprises upright frame members’ II],
It], braced at their upper ends by a horizontal
shaft II, and carrying front and rear channel
bars I2 and M the opposite ends of which‘ are
connected by semi—circular portions to form a
pair of endless inwardly facing tracks. Pad
boxes I 6 are connected at spaced intervals to
an endless chain l8 running over sprocket wheels
(not shown) located at opposite ends of‘ the
upright frame It, thus forming an‘ endless con
veyor which may be moved step-by-step by any
usual or suitable mechanism to present the’ pad
boxes successively at an“ operating station lo
cated at a convenient place at the front of the
machine.
'
"
,
Each pad box H5 'is provided withan in
flatable sole and shoe receiving pad'2ll , (Fig. 1)
Li thereafter bringing the shoe on the‘ pad into
comprising an air-tight bag-of rubber or similar
engagement with the abutments to apply sul?
cient preliminary pressure to hold the shoe in
position. In this way the shoes andsoles can
be positioned on and removed from the pads
40 without danger of scarring ‘the shoe uppers be
cause of insuflicient space between the pad and
the shoe engaging abutments. Moreover, the
difference in height between lasts in shoes of
different sizes is compensated for without any
~5
-. additional in?ation of the pad, thereby causing
each shoe to receive the full effect of the sole
attaching pressure. While‘the invention is dis
closed herein as embodied in a conveyor-type
material reinforced; if ‘ desired, with leather :or
fabric‘in any suitable manner and having an
‘
machine, it should be understood that in many
.50 of its aspects it is applicable also‘to machines
of other types.
‘
.
With the‘ above and other objects and fea
tures in view the invention will now be described
in connection with the accompanying drawings
55 and pointed out in the claims.
inlet valve 22 through which fluid under pres
sure, for example, {compressed air, may be intro
duced to in?ate the pad and thus apply pres‘
sure to the sole and shoe mounted thereon. The
pads are also provided with outlet or exhaust
valves 24 through which the compressed air can
be released after pressure has been‘ applied for
a suf?cient period of time to attach the sole 45
permanently to the shoe bottom; As illustrated
in the patent referred to, a stationary cam mem
ber or bar 25 is provided on a forward portion
of the frame adjacent to the operating station
for engaging the exhaust valve 24 on each pad
and operating it to relieve the pressure in the
pad before the pad box moves into the operating
station, this cam being indicated in dash lines
in Fig. 1. The cam 25 is preferably of such
length that it will extend past several pad boxes 55
2
2,125,930
and engage the exhaust valve on the pad which
is several pads in advance of the operating sta
tion and hold it open during its progressive
movement toward that station, thereby insuring
CR effective release of the pressure in the pad. The
length of the cam may be varied, however, so
that .the pressure in the pads will not be entirely
relieved in cases where some pressure is desired
in the pad when it reaches the operating sta
10 tion.
The inlet and exhaust valves may be of
the well-known Schrader type or they may be
valves of any other suitable type.
Projecting downwardly from the bottom side
of each pad box IE are threaded shafts or studs
26, 28 which are secured to the pad box by pins
and slide vertically in openings formed respec
tively in bearings 30, 32 provided at the lower
portion of a rigid upstanding yoke or frame 34.
The frame 34 is substantially elliptical in shape
and completely surrounds the pad box, which, as
shown in Fig. l, is positioned lengthwise of the
frame so that the upper side or yoke portion
of the frame extends longitudinally of the pad.
The upper side of the rigid frame 34 has formed
thereon a pair of stationary abutments 36, 38
which are arranged respectively to engage the
toe portion of a lasted shoe A mounted on the
pad, and the cone of the last L in the shoe. As
shown in Figs. 1 and 2, the opposite sides of the
30 rigid frame 34 are provided at their lower ends
with a pair of rolls 40, 42 which are arranged
to enter the tracks or channels in the channel
bars I2 and I4 at opposite sides of the machine
frame I 0, thereby supporting the rigid frame
34 in an upstanding position and permitting each
frame to be moved intermittently around the
located that as each frame 34 moves into the
operating station at the front of the machine,
the roll will be in position to be engaged by a
segmental cam 62 secured to a shaft 64 rotatably
mounted in bearings 66, 68 formed on the upper UK
portion of the frame In, the cam having formed
in its upper surface a U-shaped groove or track
16 which is constructed and arranged to pro
duce a forwardly and rearwardly sliding move
ment of the rack as the cam is rotated in op
10
posite directions about its axis 64. The throw of
the cam track ‘I0 is great enough to elevate the
pad box suf?ciently to bring the smallest shoe to
be operated upon into engagement with the ?xed
abutments.
A substantial portion of the cam
track 10 at the upper part of the cam, as viewed
in Fig. 2, is straight so that as each frame 34
moves past the cam-with the shoe on its pad
under pressure, the roll 60 can ride out of the
cam track without changing the position of the
rack 56 after it has been operated to move the
shoe against the ?xed abutments.
The forward or right-hand end of the shaft 64,
as shown in Fig. 1, is provided with a ?xed collar
12 having an arm 14 extending laterally of the
shaft and pivotally connected to a treadle rod
76 the lower end of which is connected to a
treadle 18 pivoted on a shaft 86 mounted in a
bearing 82 formed at the lower portion of the
frame II).
The treadle 18 is depressed to rotate :
the cam 62 in a clockwise direction, as viewed
in Fig. 2, and to move the rack rearwardly or to
the left, as shown in Fig. 1, thus lowering the
pad box relatively to the frame 34 to provide
ample space for removing the shoe from the pad '
tracks by the endless chain l8. '
and positioning another sole and shoe thereon.
The treadle 18 extends beyond its pivot 86 to
Each pad box IE is mounted horizontally in its
frame 34 by means of the threaded shafts 26, 28.
form another treadle 84 which may be operated
from the operating station to reverse the position
The bearings 36, 32 which guide the threaded ‘ of the treadle 18 after the latter has lowered the .
pad box. The cam 62 is thus rotated in an oppo
shafts are also provided with horizontal open
ings arranged to receive a pair of pinions 44, 46 site direction to elevate the pad box into the
which are threaded to receive the shafts 26, 28,
the pinions being held against heightwise move
ment in the frame by the bearings 36, 32. The
pitch of the threads on the shafts 26, 28 and on
the pinions 44, 46 is not sufficient to enable the
pressure applied thereto to overcome the co
efficient of friction between the moving parts.
Consequently, the shafts will remain in whatever
positions they are adjusted without the aid of
locking means of any kind. Moreover, height
wise pressure on the pad box increases the fric~
tion between the shafts and the pinions and thus
acts to hold the parts in the positions they occupy
when the pressure is applied.
A web 48 connects the two bearings at the bot
tom of the frame 34 and has secured thereto by
screws 50 a cover plate 52 provided with a longi
tudinal slot 54 in which is slidably mounted a
long bar 56 provided on one side with rack teeth
58 which mesh with the teeth of the pinions 44,
46, as shown in Fig. 1. The rack bar 56 is adapt
ed to slide in the slot or guideway 54 to rotate
r the pinions 44, 46, and thus move the shafts 26,
28 heightwise in the bearings 30, 32, thereby
raising or lowering the pad box I6 relatively to
the‘ rigid frame 34 to bring the shoe A into or
out of engagement with the ?xed abutments 36,
38 on the upper portion of the frame.
In order to actuate each rack 56 to raise and
lower the pad box, the inner ends of the racks
project rearwardly beyond the frames 34 and
are provided on their under sides with down
wardly extending rolls 66.
The rolls 60 are so
position shown in Fig. 1, thereby bringing the
shoe on the pad into engagement with the ?xed
abutments. At this time the pressure in the de
?ated pad is at about atmospheric pressure or, if
desired, it may be a few pounds more, for ex
ample 18 or 20 pounds, depending on the posi
tion and length of the exhaust valve operating
cam 25 referred to above. In either case, the
supporting surface of the pad will be sufficiently
solid to support the shoe against the pressure
exerted by the abutments so that the shoe will
be held ?rmly in position on the pad.
If it is desired to apply some preliminary pres
sure to the shoe bottom in addition to support
ing the shoe on the pad, the length of the sta
tionary cam 25 may be varied so that the pres
sure in the pad will not be released to atmos~
pheric pressure as the pad moves into the operat A 20
ing station but will be only partly released so that
the pad will contain, for example. 30 or 35
pounds’ pressure. Under such conditions the cam
62 will not have completed its rotation when the
shoe engages the abutments owing to the par
tially in?ated condition of the pad and, as the
operator continues to depress the treadle 84, the
abutments will sink the sole and shoe into the
pad an amount determined by the pressure re
maining in the pad and the force exerted on the
treadle. In this way preliminary pressure may,
vif desired, be applied to the shoe bottom before
any sole attaching pressure is applied thereto.
A pair 'of adjustable stop screws 86, 88 are
threaded into the opposite sides of a horizontal 75
3
2,125,930
wall formed on the main frame I0, as “shown in
Fig. 2, and are so positioned that they will en
gage the treadles ‘I8 and 84 and limit their up
each‘other‘on the pad and depresses ‘the treadle
ward movement.
position, thereby'elevating the pad. box until the
shoe and its last are engaged respectively by‘ the
'
After the shoe A has been brought into en
gagement with the ?xed abutments 36, 39 through‘
the operation of the‘mechanism just described,
?uid under pressure, for example compressed air,
is introduced into the pad 2|] while it is still at
the operating station, to'appl'y the sole attach
ing pressure. The compressed air is introduced
by ‘means of a) movable nozzle‘ 90 (Fig._1)' formed
on the end of a'pipe ‘92‘which isslidably mounted
in an upstanding? portion ofu'the frame ‘I0, the
nozzle 90 being provided with‘a valve (not shown)
for preventing the‘e'scape of the compressed‘ air
until after the nozzle has been brought into en-.
gagement withthe nipple of‘ the valve 22 on‘ the
pad box at the operating station. The air pipe
92 may be operated by any suitable mechanism
and is herein disclosed as actuated by a treadle
94 pivoted on a short shaft 96 and connected at
its outer end to a treadle rod 98 the upper end
of which is pivotally connected to the upper arm
of a bell-crank lever I99 (Fig. 1) pivoted on a
84 to rotate the cam‘62 ‘in ‘a counterclockwise ‘di
rection and thus move the rack 56 into its initial
abutments v36, ,38, as shown in Fig. 1, to apply
su?icient pressure to hold the'shoe ?rmly in ‘po
sition on the pad or, if desired, to‘ apply .the re
quired amount ‘of preliminary pressure. While
the pad box is still at ‘the operating station‘the 10
operator depresses the treadle 94 to bring the air
pipe 92 into engagement with the valve 22 and
thus admit compressed air into the pad to apply
the sole attaching pressure, this pressure prefer~
ably being approximately 60 pounds to .the
square inch. As stated above, the pitch‘of the
threads on the shafts 26, 28 and pinions 44, 46 is
suchias to hold the'pad box ?rmly in position.
when the sole‘ attaching pressure is applied;
Upon'releasing the treadlei94 the pipe 92 re 20.
turns to its inoperative position and the valve 22
closes to maintain the pressure in the pad while
the frame 34 passes around the circuit of the
machine and until it‘ reaches the‘ stationary
cam 25 which operates the release valve 24 to re 25
stud I02 threaded into the upper portion of the
lieve all or a substantial portion of the pressure
frame III. The lower arm I04 of the‘ bell-crank
in the pad.
‘
‘
‘
lever’ is pivoted to a horizontal rod I06 extending
transversely of the frame and, at its rear or left
hand end, as viewed in Fig. 1, sliding through a
the United States, is:
sleeve I08 pivoted at III'I to the lower end of an
upstanding lever II2 which is fulcrumed on a
1. A machine for applying pressure to shoe bot
toms having, in combination, a pad box provided
pin I I4 extending between ears formed on a hori
zontal bolt IIB fastened in the upper portion of
35 the frame I0. The upper end of the lever H2 is
provided with a slot which engages a pin I I8 se
cured in the end of the pipe 92. A tension spring
I29, anchored at one end to the frame Ill and at
the other end to a collar I22 fastened to the rod
I06, tends to move the rod toward the right, as
Having described my invention, what I‘ claim
as new and desire to secure by Letters Patent of
"
‘
80
' '
with a pad for receiving a sole and shoe, an up
standing frame for supporting said pad box, said
frame surrounding the pad box longitudinally. 35
abutments on the frame for engaging a shoe on
the pad, mechanism carried by the frame for mov
ing the pad box heightwise relatively thereto to
bring the shoe into engagement with the abut
viewed in Fig. 1, thereby raising the treadle 94.
ments before pressure is applied to the shoe bot
tom, and means independent of the frame for ac
A compression spring I24 surrounds the inner
tuating
end of the rod I96 and bears at one end against
the sleeve I98 and at‘ the other end against an
other collar I2l5 secured to the rod I96. By this
arrangement when the treadle 94 is depressed the
pipe 92 will be moved to the right,- as viewed in
‘Fig. l, to engage the nipple 22 and thus admit
. compressed air to’the' pad 253, the force of the
treadle, however,‘ being yieldingly transmitted
through the compression spring I24. When the
treadle is released the tension spring I20 with
draws the pipe 92 to its original position. It
should be understood that the mechanism just
described forms no essential part of the inven
tion and other suitable mechanism may be em
ployed, if desired, for controlling the admission
of compressed air into the pads.
In the operation of the machine, before each
pad‘box reaches the operating station it will have
engaged the stationary cam 25 which operates
the exhaust valve 24 and thus relieves the air pres
sure in the pad the desired amount so that the
latter arrives at the operating station ready to
65 receive a
sole and shoe. The operator de
presses the treadle ‘I8 to rotate the segmental cam
62 in a clockwise direction, as viewed in Fig. 2
which, through the operation of the rack and
.pinions, lowers the pad box and thus provides
sufficient space between the. pad and the abut
ments 36, 38 to permit theremoval of the shoe
to which an outsole has been attached without
scarring the shoe upper and to permit the intro
duction on the pad of another sole and shoe.
He then locates the sole and shoe relatively to
said
mechanism.
‘
,.
‘
-
'
'
‘
2. A machine for applying pressure to shoe-bot
toms having, in combination, a pad box, a pad’in
the box for receiving‘a“ sole and shoe, a rigid up 45
standing frame supportingthe pad box and sur
rounding it longitudinally, said frame having an
upperiportion extendinglengthwise of the pad,
fixed abutments onithe upper side ofsaid frame
constructed and arranged to engage a shoe 60
mounted on the pad,_mechanism on the frame
for moving the pad box relatively thereto to bring
a shoethereon into engagement with the ?xed
abutments thereby supporting the shoe on the
pad, and means independent of the frame, for ac 55
tuating said mechanism.
7
g
3. A machine for applying pressure to shoe bot
toms having, in combination, an upright elliptical
frame, .a- pad box located longitudinally in the
frame, and arranged for movement heightwise
thereof, a pad in the pad box for receivinga sole
and shoe, stationary abutments formed on the
upper side of the frame for engaging a shoe
mounted on the pad. projections on the bottom of
the pad box entering openings in the frame and 65
movable heightwise of said openings, and man
ually controlled means for moving the projec
tions heightwise of the openings to’move the pad
box toward and from the stationary. abutments.
4. A machine for applying pressure to shoe 70
bottoms having, in combination, a pad box pro
vided with an in?atable sole receiving pad, a rigid
elliptical frame extending vertically around the
pad box and supporting it longitudinally in the
space enclosedthereby,'abutments at the top of 75
4
2,125,930
the frame for engaging a shoe mounted on the
pad, means on the bottom of the pad box for ad
of ?xed abutments on the upper side of the frame
justing it heightwise relatively to the ‘frame to
pad, means for inflating the pad to apply sole
attaching pressure to the shoe bottom, threaded
shafts projecting from the under side of the pad 3.1
box into openings in the frame and arranged for
move the shoe against the abutments with suf
?cient pressure to hold the shoe in position on
the pad, mechanism on the frame for effecting
for engaging a shoe mounted with a sole on the
said heightwise adjustment, and manually-oper
adjustment heightwise in said openings, pinions
ated ‘means .or in?ating the pad after the shoe
threaded on said shafts and arranged for rota
tion relatively thereto, a rack slidably mounted in
has contacted with the abutments, thereby ap
10 plying sole attaching pressure‘to the shoe bot
tom.
'
'
‘- 5.v A- machine for applying pressure to shoe
bottoms having, in combination, a pad box pro
vided with an in?atable pad having a surface
15 for'receiving a sole and shoe, a rigid frame ex
tending longitudinally around the pad box at
right angles to the surface of the pad, said frame
supporting the pad box horizontally in the space
enclosed thereby, abutments ?xed on the upper
20 side of the frame and arranged to engage a shoe
mounted on the pad, means for in?ating the pad
to'apply sole attaching pressure to the shoe and
sole, and mechanism for raising and lowering the
pad box relatively to the frame to bring the shoe
25 into engagement with the abutments before pres
sure is applied 'to-the sole and shoe and to move
the shoe away from said abutments after the
pressing operation is completed, thereby provid
ing ample space for the removal of the shoe from
the pad and the mounting of another sole and
shoe thereon.
‘> 6. A machine for applyingpressure to shoe
bottoms having, in combination, a pad box pro
vided with a pad for receiving a sole and shoe, a
35 rigid upright frame extending longitudinally
the frame and meshing with said pinions, and 10
treadle controlled means including a cam coop
erating with a roll on the rack for actuating the
rack and pinions and moving the pad box height
wise toward the abutments until the latter en
gage the shoe and for moving the pad box away
from the abutments after the sole attaching pres
sure has been applied, thereby providing ample
space for the removal of the shoe from the pad
after the sole attaching pressure has been applied
and for the introduction of another sole and shoe 20
on said pad.
I
9. A machine for applying pressure to shoe bot
toms having, in combination, a conveyor com
prising a plurality of sole and shoe receiving pads
connected to an endless ?exible member, a rigid
upright frame surrounding each pad and sup
porting it for movement heightwise of the frame,
abutments on each frame arranged to engage a
shoe mounted on the pad, and means for moving
each pad heightwise of its frame to bring the -
shoe into engagement with said abutments.
10. A machine for applying pressure to shoe
bottoms having, in combination, an endless con
veyor comprising a plurality of interconnected
pads each adapted to receive a sole and shoe, a
around the pad box at right angles to its under
rigid frame supporting each pad and surrounding
side, a pair oftabutments on the upper side of the
frame for engaging a shoe on the pad and sup
porting it against pressure applied to its bottom
110 surface,ishafts on the under side of the pad box
it longitudinally, a stationary abutment on each
frame for engaging and supporting a shoe
mounted on the pad, mechanism carried by each
frame, pinions threaded on said shafts and held
against heightwise movement in the frame‘ by
ment, and means independent of the frames for
actuating the adjusting mechanism on each
said bearings, and means on the frame for ro
frame.
entering bearings in the lower portion of the
45 tating' said pinions to adjust the shafts height
wise and thus'move the pad box toward or away
from’ the abutments.
'
V
:7; A machine for applying pressure to shoe
bottoms‘having, in combination, a pad box with
frame for adjusting its pad box heightwise to
bring the shoe into engagement with said abut
.
11. A machine for applying pressure to shoe
bottomshaving, in combination, a conveyor com
prising a plurality of in?atable shoe receiving
pads connected to an endless ?exible member
and arranged to be presented in rotation at an
50 an‘ in?atable pad for receiving a sole and shoe, a
operating station, a rigid frame supporting each
pad lengthwise and extending over the top of the
?xed abutments on the frame for engaging a shoe
mounted on the pad, means for in?ating the pad
55 to apply sole attaching pressure to the shoe and
sole, threaded shafts ?xed on the bottom of the
pad, abutments formed on each frame for en
gaging a shoe on the pad supported thereby,
mechanism on the lower portion of each frame
for adjusting its pad heightwise to move the shoe
into and out of engagement with the abutments,
means for in?ating each pad to apply sole attach
ing pressure to the shoe bottom after the shoe
rigid ‘frame surrounding the pad box longitudi
nally and supporting it in a horizontal position,
pad ‘box and entering bearings formed in the
lower‘portion of the frame, pinions threaded on
said ‘shafts and arranged to rotate in said bear
ings, and a s‘lidable rack for rotating the pinions
to move the shafts heightwise in their bearings
and ‘thus raise and lower the pad box, thereby
bringing the shoe into engagement with the abut
ments‘ to apply preliminary pressure to the shoe
65 bottom before sole attaching pressure is applied
thereto‘, and moving the shoe away from the abut
ments after the pressing operation has been com
pleted to‘ provide ample space for the removal of
the‘sho‘e’i'ifrom the pad and the introduction of
70 another sole and shoe thereon.
* 8;‘.A machine for applying pressure to shoe
bottoms having, in combination, a pad box pro
vided with an in?atable sole receiving pad, a rigid
elliptical frame/surrounding the pad box longi
75 tudinallyTan‘dsupporting. it horizontally, a pair
has engaged said abutments, and independent
means at the operating station for actuating the
adjusting mechanism on each frame when the
frame is located at the operating station.
12. A machine for applying pressure to shoe
bottoms having, in combination, a conveyor com
prising a plurality of pad boxes containing shoe
receiving pads and connected to an endless
?exible member, an upstanding rigid frame sup
porting each pad box horizontally, the upper side
of the frame extending longitudinally over the
top of the pad, ?xed abutments on each frame
for engaging the shoe on the pad and supporting
it during the application of pressure thereto,
mechanism on each frame for adjusting the pad
box heightwise relatively to the frame to move
the shoe against said abutments before pressure
(30
2,12%,930
is. applied .to the ‘shoe, andntreadle-operated
prising a plurality of rigid frames linked together
means independent of the :frames for actuating
by an endless chain arranged to move intermit
said adjustingimechanism.
.
‘2-13. A machinefor applying pressure to shoe
bottoms having, in combination, .a serieslof pad
boxes provided with in?atable pads, a rigid
elliptical frame surrounding each pad box longi
tudinally and supporting it for heightwise move~
tently in a'predetermined pathrto present‘ the
frames successively at an operating station, pad
boxes mounted longitudinally in the frames by
threaded shaftswhich are arranged for move
ment heightwise thereof, in?atable pads in the
pad boxes each adapted to receive a sole and shoe,
mentlrelativelyrto the frame, each ‘frame-being , abutments on the frames arranged to engaged the
connected to an endlesssflexible member arranged
for intermittent: movement ina ?xed path. to
presenteach paclboxwinturn at ,anzoperating
station, ,abutmentsron, the upper portion of each
frame for engaging a shoe mounteduon the pad
15 supported thereby, mechanism on the lower por
tion of each frame for adjusting its pad box
heightwise of the frame to move the shoe into
and out of engagement with the abutments,
manually-operated means for in?ating each pad
20 to apply sole attaching pressure to the shoe after
the shoe has engaged the abutments, and means
shoes mounted on the pads, treadle operated 10
means-at the operating station for in?ating the
pads successively to apply sole attaching pressure
to the shoes and soles mounted thereon, mecha
nism on each frame for adjusting the threaded
shafts heightwise to elevate the pad box and 15
thereby bring the shoe into engagement with the
abutments before sole attaching pressure is ap
plied and thereafter to lower the shoe from said
abutments to provide space for removing the
shoe, said mechanism including pinions threaded 20
on said shafts and a rack for rotating said pin
including a cam and connections between the
cam and a treadle whereby the adjusting mech
anism on each frame is actuated at the operating
ions, and a manually operated segmental cam
station.
14. A machine for applying pressure to shoe
bottoms having, in combination, an endless con»
veyor comprising a plurality of interconnected
pad boxes provided with in?atable sole and shoe
receiving pads, a rigid upright frame for sup
17. A machine for applying pressure to shoe 25
bottoms having, in combination, a conveyor com
porting each pad box horizontally, said frames
extending longitudinally over the tops of the
pads, a pair of stationary abutments on, each
frame for supporting the shoes against sole at
taching pressure applied by in?ation of the pads,
projections on the bottom of each pad box enter
ing the frame and adjustable heightwise thereof
to move the shoe on the pad into and out of
engagement with the abutments, means includ
40 ing pinions and a rack for adjusting the pro
jections heightwise relatively to each frame, and
means at an operating station for actuating the
rack and pinions of each pad successively to move
the shoe thereon against the abutments before
45 the pad is in?ated and, after the pressing opera
tion is completed, to move the shoe away from
said abutments to provide extra space for the
removal of the shoe and the introduction of an
other sole and shoe.
15. A machine for applying pressure to shoe
bottoms having, in combination, a conveyor com
prising a series of rigid elliptical frames con
nected to an endless ?exible member arranged
to ‘move intermittently to present the frames one
at a time at an operating station, pad boxes sup
ported longitudinally in said frames and arranged
for movement heightwise relatively thereto, in
?atable pads in the pad boxes each adapted to
receive and apply pressure to a sole and shoe, a
60 pair of ?xed abutments at the top of each frame
constructed and arranged to hold a shoe in posi
tion on the pad in the frame, means at the oper
ating station for in?ating each paid in turn to
apply sole attaching pressure to the shoe mounted
65 thereon, mechanism on each frame for moving
the pad box heightwise to bring the shoe into
engagement with the abutments before the sole
attaching pressure is applied and thereafter to
return the pad box to its initial position to facili
70 tate the removal of the shoe from the pad, and
manually controlled means for ‘actuating said
mechanism when each frame is located at the
operating station.
16. A machine for applying pressure to shoe
75 bottoms having, in combination, a conveyor com
arranged to engage a roll on each rack to actuate
said rack.
_
prising a plurality of pad boxes adjustably
mounted in frames connected to an endless ?ex
ible member, in?atable shoe receiving pads in
said pad boxes, stationary abutments on said 30
frames for engaging the shoes mounted on the
pads, mechanism on each frame including pin
ions and a rack provided with a roll for adjusting
the pad box heightwise to bring the shoe thereon
into engagement with the abutments, thereby 35
causing the abutments to support the shoe during
the application of sole attaching pressure, said
mechanism being also arranged to move the pad
box and shoe away from said abutments after the
pressing operation is completed to provide ample 40
space for the removal of the shoe from the pad
and the introduction of another sole and shoe
thereon, a rotatable cam at the operating station
for engaging ‘the roll on each rack when the
frame carrying that rack is located at the operat 45
ing station, and treadle operated means for rotat
ing the cam to actuate the racks successively and
thus move the shoes into and out of engagement
with the stationary abutments.
18. A machine for applying pressure to shoe 50
bottoms having, in combination, a conveyor com
prising a plurality of pad boxes carried longitudi
nally in elliptical frames connected to an endless
?exible member, in?atable pads in the pad boxes
arranged each to receive a sole and shoe, a pair 55
of stationary shoe engaging abutments formed
on each frame, threaded studs on the bottoms of
the pad boxes entering openings in the frames
and arranged for movement heightwise thereof,
pinions threaded on the studs and rotatable in
the frames to move the studs heightwise thereby
raising and lowering the pad boxes relatively to
the frames, slidable racks on the frames for en
gaging the pinions, each rack having a roll on
one of its ends, means at the operating station 65
for in?ating the pads one at a time to apply sole
attaching pressure to the sole and shoe mounted
thereon, and a treadle operated cam for succes
sively engaging the rolls on said racks to actuate
each rack and, through the pinions and studs, 70
to elevate and lower each pad box‘independently
of the others, thereby moving the shoe thereon
into engagement with the abutments before the
application of pressure thereto and subsequently
moving the shoe away from said abutments to 75
6
2,125,930
provide ample space for the removal of the shoe
and the introduction of another shoe.
19. A machine for applying pressure to shoe
bottoms having, in combination, a conveyor com
prising a plurality of pad boxes supported longi
tudinally in rigid frames which are connected to
an endless ?exible member arranged for move
pad box heightwise to bring the shoe into en
gagement with the abutments before the sole
attaching pressure is applied, a rotatable cam for
actuating the adjusting mechanism on each
frame when it is located at the operating station,
and manually controlled means for rotating said
cam, said means being constructed and arranged
to rotate the cam in one direction to move the pad
ment step-by-step past an operating station, in
?atable pads in said pad boxes arranged each to 7 box heightwise toward the abutments and to ro
receive and apply pressure to a sole and shoe
tate the cam in an opposite direction to move the 10
mounted thereon, ?xed abutments at the tops of
the frames for supporting the shoes during the
application of sole attaching pressure, treadle
operated means for in?ating each pad at the
operating station to apply the sole attaching pres
pad box away from said abutments and thus pro
vide ample space for the removal of the shoe from
the pad and the introduction of another sole and
sure, mechanism on each frame for adjusting its
shoe thereon.
JOHN T. LANCASTER.
15
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 148 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа