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Патент USA US2379968

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July 10, 1945.
Filed July 29, 1943
2 Sheets-Sheet 1
‘ July 10, 1945.
Filed July 29, 1943
2 Sheets-Sheet 2
59\ 36 10]
Patented July ‘10, 1945
' Clyde L. Knott, Beverly, Mass, assignor to United
Shoe Machinery Corporation, Flemington, N. J.,
a corporation of New Jersey ,
Application July 29, ‘1943, Serial No.‘ 496,544
9 Claims. (01. 124-835)
' This invention relates to trimming machines and
Referring to the drawings,
‘ ‘
isherein illustrated and described as embodied in‘
Fig. ‘1 is a‘front elevation of the upper portion
a machine suitable for trimming the excess mate-'
of an illustrative machine;
- rial from the overlasted marginal portion of the
Fig. 2 is an enlarged view of the front elevation
upper in the manufacture of a cement lasted shoe.
showing the operating instrumentalities of the
It is necessary in such trimming operations to
machine in relation to a shoe;
break the cement ‘bond which binds the upper to
Fig. 3 is a view in perspective of the forward ,
the insole and to raise the‘portion to be trimmed
portion of the shoe illustrating the character of
from the insole. It is also desirable, in order to
the operation performed by the machine.
assure uniform trimming, to raise the marginal 10' Fig. 4 is a plan view, partly in section, of the 7
portion of the upper at a ?xed distance inwardly
operating instrumentalities; t
. from the perimeter of the shoe bottom.
Fig. 5 is a view‘ in front ‘elevation, ‘partly in
It is an object of the present invention to pro
section, on a. scale still larger than that of Fig.1 2;
vide a trimming machine ‘capable of operating
in the manner outlined above. In accordance
with a feature of the invention the illustrated
machine is provided with a gage engageable with 1 l
the overlasted margin of the upper and having
a shoulder about which the upper material may
be bent away from the shoe bottom by alifting
tool, a gage engageable withthe perimeter of the
shoe bottom, and trimming means adjacent to
the ?rst mentioned gage. The lifting tool, shown
herein, has a wedge-shaped nose which enters
between the insole and the margin of ‘the upper
and which is moved in an orbital path which is
relatively flat in the vicinity of the shoe bottom
to enable the tool to advance in contact with the
l » Fig. 6 is a side‘ elevation, partly on a section
taken on the lineVI-—VI ‘of Fig‘. 2, of the‘ parts
shown in Fig. 5.
‘ In the description which is to follow the term
“shoe” is used to denote the assembly of a lasted
"r ‘upper and insole; and the term “shoe bottom” to
denote ‘the exposed surfaces ‘of the insole and of
the over-lasted margin of the upper.
The operating instrumentalities of‘the illus
trated machine comprise a tool III in the form
of a ?nger having a wedge-shaped nose 38 (Fig.
5) for raising a portion of the overlasted margin
of the upper U of a lasted shoe S, an arcuate
knife [2 for trimming the raised portion of the
insole and which then curves to cause the tool to
upper, and a bracket l4 which carries facilities for
raise the loosened margin and to be retracted out 30 gaging the shoe relatively to the tool Ill and the
of contact, with theshoe bottom. The ?atness
knife l2., These various members are all sup
of the orbital path in the vicinity ‘of the shoe
bottom is important in enabling the tool to pick
portedby a framell? (Fig. 1) adapted. to rest
upon the ?oor. and having a laterally extending
up the margin of the upper material regardless of ‘_ upper portion [8 which is integral with the re
variations of distance of. the edge of the upper 35 mainder of the frame. If desired, the frame l6
material inwardly fromthe perimeter of the shoe
may be designed to be secured to a Work bench.
bottom. The trimming means consists of a knife
,Journaled in suitable bearings carried by the
mounted for movement about a ?xed axis, the
frame I6 is a shaft ,20 which may bedriven by
blade of the knife being curved about the same ' any suitable source oflpower. Secured upon ‘the
axis. If desired,‘ the knife may be circular in 40 shaft Zllis‘ an eccentric 22 upon which is mounted
form and it may be continuously rotated. . How
one end of an eccentric rod 24.‘ The rod 24 at
ever, in the illustrated machine, the knife is os—,
cillated about its ‘axis ofrotation, and it is arcuate,
a locality adjacent to its opposite end is pivotally
rather than circular. The oscillation of the knife
'Which extends downwardly. The lower end of the
connected by a pin 25 to‘ a supporting link 26
is- effected by a link from. the same mechanism 45 link 26. is, pivotally mounted for free swinging
which operates the lifting tool, and insuch a ‘ movement upon a pin 28 secured in the frame
manner that while the tool is advancing the knife
member “3. The end portion of the rod 24 be
moves in a direction opposite to that of the tool T yond the link 26 carries ‘a block 30 which is ad
1 and while the tool is being retracted‘the knife
justable in a‘ direction ‘parallel ‘tothe axis of
moves in a direction tending frictionally to raise 50. the shaft 20. Provision for such adjustment is
the margin of the upper material.
. obtained by means of a guideway 32 formed in the
fWith the above and other objects and features‘
rod 24 and along which the block 30 is slidable.
inview the invention will now be described in
The block 30 may be clamped in any desired ‘posi
connection with the accompanying drawingsand
tion of adjustment along the guideway 32 by a
‘ will bepointed out in. the. claims.
55 bolt 34 threaded into the rod 24.1,and extending
7“- .
2 .1
wardly relatively to the shoulder 56, is indicated
through a slot in the block 36. The block 30 has
formed in it a guideway for the tool ill. The block
on Fig. 4 by the reference numeral 61.
Rotatably mounted for oscillation upon a pin
58 secured in the shank 4| is a sector 60 having
an arm 62 extending upwardly and inwardly, or
toward the right, as shown in Figs. 1 and 2. The
upper end of the arm 62 isvpivotally connected
‘to one end of a link 64, the opposite end of
is split along the guideway to enable the tool Ill
to be secured by a clamping bolt 36 with the point
or nose 38 of the tool l0 (Fig. 5) in any desired
position or adjustment along a line which lies
in a plane normal or radial to the axis of the
shaft 2|]. It will be noted that by reason of the
fact that the supporting link 26 extends down;
which link is pivotally mounted.‘ on the pin 25.
wardly from the rod 24 to a ?xed supporting pivot
pin'28 the path of the nose 38 of the tool l6 will
be ellipsoidal in form as indicated by the closed
The sector 60 has a web in ‘which is formed an
. opening 65 (Fig. 5) through which the severed
‘ upper stock may pass. The sector 60 also has a
curve (broken line, Fig. 5) 40 and that the:_lo'wer '
peripheral ?ange or rim 66 (Fig. 6) which is
frusto-conical in shape. Clamped against the
portion of this path is relatively flat as compared with the bulging upper portion. .
15 outer surface of the rim 66 by an arcuate clamp
The bracket It has a shank 4| which extends
upwardly with a slight inward inclination, and
ing plate 68 is the knife I2, which is ?exible. A
portion of the forward edge of the clamping plate
is ‘beveled forv clearance, as indicated by the ref
erence. numeral 69 in Figs. 4 and 6. A pair of
which is slidably mounted for heightwise adjust
ment upon the frame member l8 and may be
secured thereon in any desired position of- height 20 radial clamping screws 12 threaded into the sec
wise adjustment by a‘clamping bolt .42 extending
tor 60 hold the arcuate» plate 68 in clamping po
sition. It will be observed that the oscillation
through a slot 44 in the-shank 4| and threaded
of the pin .25 about the pin 28 will ‘be transmit
into the frame member . | 8. Carried by the shank
ted through thelink 64 to rock the‘sector'60
4| and extending outwardly therefrom (i. _e.; in
- a direction away from the shaft 20) and also 25 aboutthe fulcrum pin 58 and thereby to operate
rearwardly therefrom in a direction parallel .to
the knife.
The knife |2,may be adjusted heightwisewith
the shaft 26 is a ?ange or foot 45. The major
respect to a sole held against the gaging surface
portion of the under surface of the foot 45 (in
46. Such adjustment is made possible by an ar
dicated-in Fig. l‘ by the numeral 46-) is plane
and parallel to the axis of'the shaftl26, being 30 rangement' wherein the pin 56, ‘upon which the
a little above the level of the axis of the shaft
knife sector is mounted, extends through a slot
14 formed in a boss 16 on the shank 4|. ‘(The
slot 14 is arcuate about an-‘axis which coincides
the horizontal in a direction away from said axis.
This under surface 46 serves as a height gage
with any extension of the straight line de?ning
against which the shoe is held inverted with ‘the 35 the edge 56 of the gaging surface 46. One end'
26, and sloping downwardly at a, slight angle to
overlasted margin U in contact therewith.
Mounted for free rotation upon a pin 48 se
iof the pin. 58 has a head 18 which bearsv against
one end of a spacing collar BUY-interposed be
cured‘ in the foot 45 isa roll 5|] adapted to bear
against the perimeter of the shoe bottom, which
tween the pin, 58 and the hub of the knife sec
tor. The other end of the collar 80 bears against
roll constitutes a stop or an abutment to deter
a washer 8| which engages a ?nished surface
mine the lateralposition of the shoe.‘ The pin.
48 extends through a slot ‘49 (Fig. 4) in the foot
has threaded thereon a nut 82 which holds a
on the boss 16. The opposite end of thepin 58
washer 84 against the boss 16. The pin 58‘ may
thus be clamped in any desired position of' ad
justment in the slot 74, and the hub of the knife
sector ‘is freely rotatable about'the "collar 80 for
45, and may be secured insaid slot in any de—
sired position of adjustment toward or away
from the shaft 2|] by a nut 5|. The gaging sure
face 46 terminates abruptly
an obtuse angle
at the elbow of the shank 4| to form a straight
edge or shoulder 56 (Figs. 1 and 4). From the
shoulder 56 the inner‘ surface of the shank 4|
any such position of‘adjustment. The radius
of the knife l2 about ‘the axis of the pin 58, and
the'radial distance of the axis of the pin'58 ‘from
slopes upwardly and inwardly at a slight angle 50 the edge 56, are ‘made exactly equal ‘to insure
the cutting edge of the knife l2 always, regard
from the vertical. The shoulder 56 continues
rearwardly beyond the shank 4|, constituting
less of the adjustment of the pin 58 in the slot
the lower and inner (or righthand) edge of the
14, passing» through the line (extended) which
de?nes the edge 56.
' '
foot 45, and the edge surface of the foot is‘ con
As shown in Fig. 6, the tool in is positioned
tinuous with the inner surface of the shank 4|, 55
rearwardly of the shank 4| and forwardly of the
sloping upwardly and inwardly at the same
slight angle from the vertical to an edge 51 only
slightly above the shoulder 56‘. Above the edge
knife l2. The bracket |-4 thus serves ‘as a. guard .
k for the tool and the knife.
51 the edge surface of the foot is beveled up
wardly and outwardly, as indicated by the ref 60
erence- character 59 on Figs. 4 and 5. The foot‘
In operating ‘the machine, the‘ attendant holds
the shoe S in‘ the position shown' in Fig; 2 with
the overlasted. portion of ‘the upperUin contact
of the knife l2, and it has a lug 6| which ex-_
tends rearwardly over the cutting edge of the
with the gaging surface 46, and with the perime
ter of the shoe bottom (indicated byth'e refer-1
ence character P in Figs. 3 and 6) substantially
knife, the under surface of the lug being beveled
upwardly,(to the line 63 on Fig. v5) ‘from the
should ?rst be adjusted along the arm 451j‘to
45 extends rearwardly nearly to the cutting edge
in engagement ‘with the: roll 5|).v The ‘rolll‘50
bring the shoulder 56 vto a desired position in
gaging surface 46 in the form of a ‘frustu‘m of
a cone co-axial with the knife in the extreme
right-hand‘ position of adjustment of the knife
wardly from ‘the perimeter of ‘the‘r‘shoe bottom.
The purpose of the‘ tool -|0 is ?rst to break the ‘
cement bond between the. over-lasted margin’ ‘of
to enable the lug 6| to clear the knife. The con
tinuation of the shoulder 56 along the lug 6|
and over the knife. serves as a shearing edge for
the upper U and the insole (identi?ed was
holding the work against theknife l2. This:
shearing edge, which slopes upwardly and ream:
the‘ shoulder 56. The ‘tool ‘I6 is aecordi'nglyfald-l
reference character I) ,fand. secondtd raise-this
marginal portion ‘by bending i‘tbupwardly‘ around
justed longitudinally iinlthe blockiWtdb?rig the‘
wedge-shaped nose of thesto‘ol relatively “ close,
allowing‘for‘thelthickness of theupper material, ‘ ‘
tot‘the‘ shoulder56 when the ‘toolis in its most
advanced position. 1 The nose 38. of the tool, mov
ingxclock‘wise in an’ ellipsoidal path 40 (Fig. 5)
will enter between the edge of the overlasted
‘ 3
ing saidportion ‘of the overlasted margin of: the
upper? and ‘bending it over saidlshoulder, and
means adjacent to the‘ ?rst-mentioned ‘gage ‘for
trimming the raisedportion of the‘ overlasted
marginof the uppers
, 2.‘, An upper-trimming ‘machine comprising a
workeguiding member, ‘having a, shoulder, er‘
ranged to be engaged by the overlastedrmargin
margin of r‘ the upper and the insole and advance ‘
along a ‘relatively- flat curve which‘ is. substan
tially: tangenttothe surface of‘ the insole‘, break
ingthe cement bond between the upper material
of, the upper material. lying on ‘the insole. of a
lasted shoe, an‘ abutment spacedlfrom said shoul
der and arrangedto be engaged by the perime
and, the insole. ‘The bracket“ ‘should be ad- ‘
jus‘ted heightwise to insure this condition of ‘sub- ,
ter of the shoe bottom, a wedge-nosed tool ar
stantial etangency.‘ .As‘lth'e advancing movement
ranged to ‘be inserted between‘ the insole ‘and’,
of ‘thetnoselof- the'too‘l continues the tool ‘will
theedge of said, margin, power-operatedumeans‘
rise from‘ ‘the insole and bend the freed rupper‘
for‘ moving the nose‘of‘ said tool in anxellipsoidal
material‘ about the shoulder ‘56 ‘and away from
path to bend surplus‘ material of said‘ margin ;
the insole to form a flap F. ‘The arcuate knife ‘ over said shoulder, and power-operated cutting
, I2 is positioned under the beveled undersurface,
means arranged to sever the surplus materials‘)
of the lug H to sever the?ap' ‘F. .‘The ‘pin 58
should be ‘adjusted vin‘the slot 14 to bring the
‘3. An upper-trimming machine ‘comprising at
cutting edge of the knife l2 substantially tangent,
power-driven knife; a guard located in front of
allowing‘ for reasonable clearance, to the insole.‘
the knife to be engaged by the overlasted margin
This condition is shown in Fig. 5 wherein the 1
of the upper material 'lyingcon the insolecf a
arc K represents the cuttingiedgeofI the knife.‘
lasted shoe, ‘an abutment, arranged to be engaged
If the‘upp‘er material were thicker, the pin 58
by the ‘perimeter of the sole of'the shoe,“ said‘ I l “
would have to be adjusted‘furthento the right , guard having an edge‘ spaced‘ from said abutment
and theputting edge of , the knife would then
inwardly of the perimeter of the S016,‘8, ?nger
assume a lower position, , forexample, such‘ as ‘
having a tip engageable with the insole and‘ the
that represented by the arc K’ (inbroken lines).
It will ‘be observed that both‘ arcs pass“ through
the line representingthe shoulder 56,,eXten‘ded.
, surplus‘overlasted upper material projecting in
30 wardly‘vbeyond the edge of said guard, and power
driven means for moving said ?nger toward and '
As shown in Big, 5, the knife makes a‘scarf cut. ,
from ‘said abutment, said‘ ?nger ‘having-‘an Tin-j
It is important that the lower or inner edge, of
, clined face arrangedlto run under said surplus
this scarf, should "substantially , coincide with, the‘
material and bend itfon said edge away from the
line along which thecement bond between the
55,Ll' ‘ insole and in a position to be cut by said knife“ f I
upper material and the insole has been broken.
The above-mentioned‘ heightwise adjustment of
, tool ‘having a wedge-shaped nose adaptedrtozbe
4. An, upper-trimming'machinecomprising a
the knife for different thicknesses of upper stock
inserted between the insole of a lasted shoe and
' satis?es this condition,‘,andii‘results in a neater
the overlasted margin of upper‘ material lying-Ion
and cleaner scarf than 'could be obtained other‘
540 the insole, a work-guiding ,member‘ having ,a 5‘
wise‘. During the‘ advancing of the tool ID‘ the
knife will be vmoved by the link 64 in a counter
bearing surface arranged to be engagedlby‘said
margin and along which the shoe may be ad
vanced, an abutment arranged to be engaged by
the perimeter of the shoe bottom, anda poweroperated knife having an arcuatecutting edge
and movable about the axisof said edge to 6X8‘?
‘cute a draw out, said tool being constructed and
clockwise direction ‘about the axis of the pin 58,
and whatever frictional‘drag the knife may exert
upon the upturned margin of the upper will be
resisted by the advancing 'tool In. The operator
all the while is feeding the shoe to the left, as
viewed in Fig. 6, in contact with the roll v5!)
and the gage surface 46 to bring fresh portions
of the upturned ?ap into engagement with the ,50
knife and to bring fresh portions of the cemented
margin of the upper into engagement with the
lifting tool I0. While the lifting tool In is being
‘ , retracted and is out of contact with the flap F, the
arranged to bend the "surplus marginal material
of the upper about said work-guiding member‘
in a position to be out by said knife as the shoe
is advanced.
5,. An upper-trimming machine comprising a
gage engageable with the ‘overlasted margin of
the upper of a Shoe and having a Shoulder about
knife [2 will be ‘moving in a clockwise direction
and will, therefore, tend by reason of its fric
tional drag to hold the flap against the shoulder
which the portion of the overlasted margin adja
cent to the edge of the upper may be bent away
from the shoebottom, a guide for the perimeter
56. Fig. 3 shows the, forepart of a shoe that has
of the bottom of the shoe ‘as the shoe is fed in‘
been removed from the machine, for purposes of
contact with said gage, a wedge-nosed tool
illustration, before completion of the operation. 60 adapted to enter between the ‘edge portion- of
The overlasted margin of the upper U has been
the overlasted upper and the insole to raise the
‘trimmed along a line L parallel to the perimeter
upper material from the insole, an arm upon one
P of the shoe bottom.
end of which said tool is mounted, means‘ for
Having thus described my invention what I
moving the other end of said arm in a circular
claim as new and desire to secure by Letters 65 path, a link having one end pivotally connected
Patent of the United States is:
to said arm, a pivotal mounting for the other‘
1. An upper-trimming machine comprising a
end of said link about which the link may swing
gage engageable with the overlasted margin of
‘ to constrain the movement of said tool to a closed
the upper of a shoe and having ‘a shoulder about
path in a portion of which‘ the tool advances in
which the portion of the overlasted margin adja 70 operative contact, with the work and in another
‘cent to the edge of‘ the upper may be bent away
, portion of which thetool is retracted out of con—,
from the shoe bottom, a gage engageable with
tact with the work, a lever, a fulcrum upon, which
the perimeter of the shoe bottom to insure a pre
said lever is pivotally mounted, ‘a knife carried
determined distance between saidshoulder and
by said lever and arranged to sever the upper
the perimeter of ‘the shoe bottom, a tool for rais 75 material raised by said too], said knife having
i ‘
_ 2,379,968
, ‘8.7 In an‘ ‘upper-trimming ‘machine, .a ‘tool ,for
a curved blade ‘coaxial with said fulcrum, and a
link pivotally connected at one‘ end to said lever
and at the other end tothe first-mentioned link
for rocking said lever to oscillate the knife, the
second-mentioned link being arranged to, move
raising a iportionv ‘of the ‘overlasted margin‘ofia
shoe‘ upper from the "insole, meansffor driving
said tool in a predetermined path, ‘a bracket "have
ing?a,‘ gaging surface engageable withthe over.
' ‘ the knife in a direction tending‘ frictionally to
lasted margin of the shoe upper, a support upon
which said bracket is mountedxfor‘ heightwise
raise‘ the margin of the upper while the tool is
adjustment to: determine the heightwise position
. being'retracted.
of the shoe relatively to‘ the path of said :tool
a 6i A'device for raising the margins of ‘cement
lasted uppers, comprising a gage having an.un-' 10 when the overlasted margin of the ‘upper is held
against said gaging surface, a knife on said
‘dersurface' engageable with the bottom of an in
‘bracket for trimming the upper material which
vertedl cement-lasted shoe to. determine-the
has been raised by said tool, and‘ an ‘adjustable
Fheightwise position of ‘thetshoe, a: wedge-nosed
‘connection between said‘knife and said bracket
tool adapted to enter between the edge portion
of the overlaste'd upper of the shoe and the in 15 for enabling the knife to be secured to the brack
et in various positions of heightwise adjustment
to accommodate different thicknesses ofupper
Sale, an arm upon one end of which'said tool is
mounted, means for moving the other end of said
arm in a circular path,‘ a, link having one end
pivotally connected to said arm between Said
tool and said moving means and extending down
9. In an upper-trimming‘machine, a trimming
knife mounted for movement about an axis and
having a- cutting edge of which all portions‘ are
, wardly, and a pivotal support for the other end
equidistant from said‘axis, a gage-engageabie
of the link 'for con?ning to an arcuate ‘path the
With'lihe overlasted margin of thejupper ota
movement of that portion of the arm to which
the link is pivotally connected, whereby the nose
shoe to determine the heightwise position of the ‘
of the tool will be constrained to movement in 25 shoe relatively to. the knife, a ‘member‘having
a closed path which is relatively ?at in the vicin
a shoulder in the form of a straight edge about
ity of' the bottom of a shoe held against said‘
which the upper material maybe ‘bent away
from the insole, and a'support for said knife con
7. In an upper-trimming machine, a tool for
structed and arranged for adjustment to‘ vary
raisinga portion of the overlasted margin ‘of a 30 the positionof the axis of the knifeover an arc;
shoe upper from the insole, means for driving
the axis of which are is anextension of said
said tool in a predetermined path, gaging means
straight edge, the'radius of the cutting edgeofj
for determining the position of the shoe both
the knife being equal to the radius of said are
heightwise and laterallywith respect to the path
of said tool, a knife for trimming the portion 35 whereby the cutting edge of the knife will ‘pass
through the axis of the are for’ all positions of
of the upper which has been raised by said tool,
and a support for said knife constructed and ar-
adjustment of the knife, and’ the purpose of saidv
adjustment being to adapt the machine forop
ranged for heightwise adjustment with respect
eration upon shoes having upper material of dif
to said gage to adapt the machine for operation
upon shoes having di?‘erent thicknesses of upper 40 ferent thicknesses.
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