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Патент USA US2412894

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Dem-17, 1946.
2,412,894
H. J. LE VESCONTE ET AL
SEWING MACHINE
Filed Aug. 7, 1942
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Dec. 17, 1946.
H. J. LE VESCONTE E;I?AL
2,412,894
SEWING MACHINE
Filed Aug. 7, 1942
'1
2 Sheets-Sheet 2
I'
AT
RNEY
Patented Dec. 17, 1946
2,412,894
UNITED STATES PATENT OFFICE
2,412,894
SEWING
E
Harold J. Le Vesconte, Western Springs, and
Martin L. Cook, Chicago, Ill., assignors to UIllOIl
Special Machine Company, Chicago, 111., a cor
poration of Illinois
Application August 7, 1942, Serial No. 453,952
11 Claims. (01. 112-18)
?1
This invention relates to an improved thread
2
Fig. II is an. enlarged horizontal section along.
cutting and work guiding and pulling attach
the line II?-II of Fig. I.
ment for sewing machines and more particularly
to an improved construction and arrangement of
of work puller and chain cutter for cup-feed ma
chines, of the type used in the seaming of hosiery
and in similar operations.
One object of the invention has been to provide?
Fig. III is a perspective view of the feed cups
and associated devices.
Fig. IV is a detail view, in section along the
?
line IV?IV of Fig. II, showing the improved
puller plate and cutter, and
?
?
Fig. V is a vertical section along the lineV.?-V
asimple but effective arrangement for guiding
and pulling the work and keeping it straight and
of Fig. II, .
under proper tension for some distance beyond
the bight of the feed cups of a machine of the
character indicated. For this purpose a spring
urged plate is arranged to cooperate with one of
tending to limit the invention thereto, it has been
the feed cups.
'
Another object of the invention has been to
provide a chain cutter of the character indicated
which is conveniently located and readily usable
by the operator and one which, at the same time,
requires a minimum amount of chaining between
the successive pieces of hosiery or the like being
stitched. Toward this end a feature of the in
vention is the provision of the cutter on the work
For purposes of illustration, but without in- ?
shown applied to a machine of the type disclosed
in the Rubel et a1. Patent No. 2,043,711, granted
June 9, 1936, with certain modi?cations disclosed
in Hacklander Patent No. 2,043,749, granted
June 9, 1936. Reference may be had to said prior
patents for further details of the construction
and arrangement of various portions of the ma
chine not herein fully disclosed.
Referring now to the drawings, the machine
may comprise a main frame 10, the lower end of
which (not shown) is adapted to be supported by
a suitable table and the upper end of which ex
tends laterally to form an overhanging arm or
Another feature is the disposition of the cut 20' bracket. A main operating shaft II is suitably
ting edge of the cutter in a substantially vertical
journaled in the frame andis provided at one or'
plane. This not only provides for its use by a
both ends, outside of the frame, with a combined
simple and natural movement of the hand of the
hand-wheel and pulley l2. Power is supplied to
operator, but also enables its location as near as
the machine from any suitable source through
possible to the bight of the feed cups, and prac 30 .one of these pulleys and suitable connections
tically at the point where the puller plate coop
from the shaft I I are provided within the frame
erates with one of the feed cups. In large meas~
for driving the various operating elements of the
ure this is responsible for the shortening of the
machine. The stitch-forming devices comprise
chain between successive pieces of hosiery or the
a reciprocatory needle bar I3 mounted in a hor
like. It permits the operator to gage accurately
izontally extending sleeve l4 mounted in and pro
the position of the chain with respect to the cut
jecting from the front wall of the frame. This
ting edge. The machine may thus be readily
needle bar is adapted to carry and impart recip
stopped at the correct point each time for the
rocatory movements to a needle I 3a (Fig. II). A
severing operation, The chain between articles
primary, thread carrying looper I5 is mounted
need be of su?icient length only to permit the 40 on a rod or looper support It slidable endwise and
severance of the chain to be made without dan
oscillatable in a bearing sleeve or bushing {l1 ex
ger of injury to the connected articles. A sub
tending through the forward wall of the frame
stantial saving in thread is thus effected and, at
and disposed at an appropriate angle in relation
the same time, the necessity of a separate trim
thereto. ?A second looper I8, which may be a
ming operation to remove the excess portion of 45 .thread carrying looper or simply a spreader, as
the chain is eliminated. desired, is mounted on a support I8a, for oscilla
Other objects, features and advantages of the
tion. only, ?in a bearing sleeve I9 extending?
invention will appear from the detailed descrip
through the frame wall in a direction parallel
tion of an illustrative form of the same which
with the sleeve ll. By connection disclosed in
will now be given in conjunction with the accom 50 ?said Rubel et al. patent, the needle and the two
panying drawings, in which:
looper supports will be given the necessary re
Fig. I is a side elevation of the upper portion
?ciprocatory and oscillatory movements to per
of a machine embodying the invention, a part of
form the desired stitching operations and pro- .
the frame of the machine being broken away for
duce, for example, the long seam provided at the
betterlllustration of certain members.
55 back of fulL-fashioned hosiery.
guiding member or puller plate mentioned above.
2,412,894
l
v
4
44 is suitably wrapped about the hub member 43a.
At its outer end there is secured to the arm, by
.The article to be stitched, is advanced in prop
erly timed relation to the operation of the stitch
forming devices by means of a pair of feed cups
20 and 2|. These, as illustrated, preferably have
their upper, cylindrical, rim portions knurled to
grip the work effectively and advance the same
step by step in the; formation of; a seam. Refer
means of a screw 46, a horizontally extending
?ange 41 integral with a vertically disposed plate
48. One end of the latter is provided with an
extension 49 which is preferably curved or bent
over a sweeping arc (as best shown. in Fig. 11)
and forms a guide ?nger beneath. the cup 20
extending to a point adjacent the shaft 22. A
ence may be had to the above mentioned Rubel
et al. patent for details of suitable driving means
for the feed cups. The cup 20 is secured by a
set-screw, or the like, to the lower end of av shaft
22 journaled in a depending bushing or hearing
suitable clearance is provided, however, between
the, guide ?nger and the bottom, as well as the
hub of the cup, to enable free movement of the
sleeve 23 carried by the overhanging portion of
plate 48 with the arm 43 into ?the dot and dashv
rearwardly in the overhanging portion of. the
frame and is engaged at its inner, free end by a
the, plate by a pair of over-turned tabs 5|. inte
, position indicated in Fig. II. The spring 44, act
the frame. Similarly, the cup. 2| isv secured; by
ing upon? the arm 43, serves to urge the side of
15
a set-screw, or the like, to a shaft 24 journaled:
the plate 48yieldingly against the periphery of
in a, bushing or bearing sleeve 25 carried by a
the feed cup 2| at a point about 60░ from the
rock member 26 secured to a stud or shaft, 27
stitching point. On the outer face of the plate
mounted horizontally in the overhanging por
48, in. the region of the point of engagement of
tion of the frame I0. Adjacent one end of? the '
shaft 21 is secured an arm 28 which extends 20 the plate with the feed cup 2 I, there is mounted
vertically disposed spring 29 surrounding a rod
30 slidably mounted in the vertical portion of
a ?cutter blade 50 which is preferably secured to
gral with the plate adjacent the lower end of
The blade extends in a vertical plane
the frame. As morefully disclosed in the above 25 with the cutting edge 52 disposed at an angle of
about 45 degrees to the horizontal. The upper
mentioned Hacklander patent, the lower end of
portion of this cutting edge is exposed while the
the spring 29 may be arranged to engage the
lower portion may be protected by the edge 53
upper end of an adjustable sleeve 3| by which
of the plate 48, which extends beyond the cutting
the tension of the spring may be readily varied.
' the blade.
Through the coaction of? the parts described, it 30
will be- seen: that: the outer feed cup. 2| is urged
yi'eldingly-against theinner feed cup 20 or against
the work . which. is held between the two feed
cups. Tofacilitate the introduction of the work
betweenthe feed. cups, any suitable means may be
' provided for separating the cups. to a limited
extent, such as a connection from a foot treadle
edge of the blade at this point.
.
'
In the operation of the machine, the edges 54
of the work, which are to be stitched together in
the seaming operation, are inserted appropriately
between the blades of the uncurler 55, which may
be of any suitable and well known construction.
From the uncurler the work is?passed. between
the feed cups and after an appropriate length
of the seam has been formed, the end of the work I
is gripped between the plate 48 and the periphery
Downward movementv of this rod will cause rock
ing of the arm 23 in a counter-clockwise direc 40 of the cup, these parts thus serving as a puller
to keep-the. work smooth and taut. As will. be
tion. (Fig. I), thereby shifting the feed cup 2|
seen, the plate 43 extends across the line of feed
outwardly away from the cup 20.
of the. work and,? therefore, automatically di
A. bracket member 32 (Fig. II) is secured (by
rects the work, particularly the leading edges of
means not shown) to the overhanging portion
of.? the frame and extends downwardly adjacent 45 the succeeding articles in a continuous series,
intothe converging passage between the plate
to, and parallel with, the shaft 22' to a point
and feed cup 2|. As the end of the seam on one
within the feed cup 20. At. the lower end of
article is approached, the next article is intro
this bracket there is secured a support member
duced between the uncurler blades and into the
33',? the outer end 34 of which ?ts within, the rim
of- the cup 24- and partially overlies the upper 50 big-ht._ of the feed cups 20, and 2|, leaving only a
relatively small distance between the two articles
edge-of this rim. The curved end 34 is provided .
over which the stitch-forming devices need to
with a guide slot or notch for the needle l3a. A
form a free chain. When this chain reaches the
stitch ?nger 35, extending along the line of
point of engagement between the plate 48 and
stitching just above the upper edges of the rims
of the feed cups, may be. secured by screws. 35. 55. the cup 2|, the machine is stopped momentarily
and the operator, by a simple movement of the
to. the support member 33. At the lower endv of
(not shown) to the lower end of the rod 30.
hand, draws the chain across the cutting edge 52-,
the bearing sleeve 25 there is provided a laterally
by either a downward or an upward movement,
extending, ?ange 3'4. which is within the feed cup
thus severing the completed article from the one
2|. just above a central boss'in its bottom. To
this ?ange there is secured, by screws 38 and 39, 60 being stitched. The ?nished article may simply
be dropped, by the same movement, into a basket.╗
a support member 40., one end 4| of which pro
vides a guide for the needle |3a as the latter is
projected across, the line of stitching and over
the top of: the. feed, cup 2|-..- A stud 42, secured?
by. a screwthreaded portion at, its lower end to 65
the support member 40, provides, a pivot for an
arm, 43.. A hub member 43a, to which the arm
is?. secured, surrounds the stud 42 and permits the
conveniently located below the feed cups. The
succeeding article is then ?nished in the same
manner- and another article introduced with but
a small section of chaining between the articles.
This same series of operations, maybe repeated
inde?nitely.
arm to be swung freely in a horizontal plane.
The arm isurged, however, in a clockwise direc
tion (Fig. 11) by means of a spring 44, one end
While an illustrative form of the invention has
been described in considerable detail, it will be
understood, that numerous changes may be made
in the construction and arrangement of the vari
ofv which is hooked around the edge of the sup
port member 4|) and the other end; of which is
engaged in any one of a, seriesofapertures 45 in?
the hub of the arm43. ?A portion of the spring
principles and scope of the invention. The terms
and; expressionsusediherein have been employed; 1
as terms of description; and not of limitation.
ous parts, without departing from the general
5
2,412,894.
What we claim is:
1. In a cup-feed sewing machine a pair of feed
cups, means for urging said cups into cooperative
engagement, a bodily shiftable plate extending
across the path of feed of the work fed by said
cups in a direction tangent to one of the pair of
cups at a point on the discharge side thereof,
said plate having a work guiding portion ex
tending across the periphery of the other of said
urging said plate yieldingly against the periphery
of one of said feed cups to provide a feeding
action in conjunction therewith, said plate car~
rying a thread cutting edge disposed in a sub
stantially vertical plane parallel with the cup
engaging portion of said plate and closely ad
jacent the point of engagement of said plate with
said one of said feed cups.
7. In a cup-feed sewing machine a pair of
cups to a point beneath the same, means for 10 feed cups, means for urging said cups into co
shifting said plate into and out of operative po
operative engagement, a plate extending across
sition, and spring means for urging said plate
the path of feed of the work fed by said cups on
yieldingly against said one of said feed cups when
the discharge side thereof, spring means for
the plate is in operative position.
urging said plate yieldingly against the periphery
2. In a cup-feed sewing machine a pair of feed
cups, means for urging said cups into coopera
tive engagement, a plate extending across the
path of feed of the work fed by said cups, and
in conjunction therewith, and a vertically dis
posed, readily replaceable cutting blade carried _
of one of said feed cups to provide a feeding action
by said plate closely adjacent its point of en
spring means for urging said plate yieldingly
gagement with said one of said feed cups and
against one of said feed cups, said plate having 20 presenting a chain cutting edge at substantially
the elevation thereof.
a portion extending beneath the other of said
8. In a cup-feed sewing machine a pair of
feed cups toward the axis thereof to assist in
cooperating feed cups rotatable about vertical
directing the work between the plate and said one
of the feed cups.
axes, a vertically disposed cutting blade supported
3. In a cup-feed sewing machine a pair of feed 25 on the exit side of said feed cups, said blade hav
ing a cutting edge in a vertical plane disposed
cups, means for urging said cups into cooperative
closely adjacent one of said feed cups and at
engagement, a plate extending across the path
substantially the elevation thereof, and means
of feed of the work fed by said cups, a pivoted
for directing the work along a path passing be
arm carrying said plate, and spring means urg
ing said arm in one direction to engage said 30 tween said blade and said one of said feed cups.
9. In a cup-feed sewing machine work feed
plate yieldingly with one of said feed cups, said
ing means including a pair of cooperating feed
plate having a portion extending beneath the
cups rotatable about vertical axes, an arm piv
other of said feed cups to assist in directing the
oted adjacent one of said feed cups, and a ver
work between the plate and said one of the feed
cups, said arm and plate being adapted to be 35 tically disposed cutting blade carried by said
arm on the exit side of said feed cups presenting
swung outwardly into inactive position.
a cutting edge in a vertical plane substantially
4. In a cup-feed sewing machine a pair of feed
in the path of feed of said work feeding means.
cups, means for urging said cups into cooperative
, 10. In a cup-feed sewing machine work feed
engagement, a plate extending across the path
of feed of the work fed by said cups, an arm 40 ing means including a, pair of cooperating feed
cups rotatable about vertical axes, anarm piv
carrying said plate, said arm being pivoted about
oted adjacent one of said feed cups, a vertically
a point within one of said feed cups, and spring
disposed cutting blade carried by said arm on
means urging said arm in a direction to engage
the exit side of said feed cups presenting an
said plate yieldingly with the periphery of said
inclined cutting edge in a vertical plane substan
one of said feed cups, said plate having a por
tially in the path of feed of said work feeding
tion extending beneath the other of said feed
means, and spring means urging said arm in a
cups toward the axis thereof but having sui?cient
direction to carry said blade toward one of said
clearance therefrom to enable said plate and
feed cups.
arm to be swung outwardly into inactive position.
11. In a cup-feed machine a pair of feed cups,
5. In a cup-feed sewing machine a pair of 50
means for urging said cups into cooperative en
feed cups, means for urging said cups into co
operative engagement, a pivotally mounted plate
extending across the path of feed of the work
fed by said cups on the discharge side thereof,
said plate being tangent to one of said cups and
having a free end extending beneath the other,
and spring means for urging said plate yieldingly
against the periphery of one of said feed cups
to provide a feeding action in conjunction there
gagement, plate-like means in the path of feed
of the work fed by said cups, said plate-like
means being tangent to one of said pair of cups
at a point on the discharge side thereof, means
associated with said plate-like means and co~
operating therewith to direct the work between
said plate-like means and the cup engaged there
by, said associated means extending beneath the
with, said plate carrying a thread cutting edge 60 other of said cups, means for supporting said
plate-like means for movement into and out of
closely adjacent the point of engagement of said
operative position, and spring means for urging
plate with said one of said feed cups.
said plate-like means yieldingly against said one
6. In a cup-feed sewing machine a pair of feed
of said feed cups when the plate is in operative
cups, means for urging said cups into coopera
position.
tive engagement, a plate extending across the 65
HAROLD J. LE VESCON'I?E.
path of feed of the work fed by said cups on the
discharge side thereof, and spring means for
MARTIN L. COOK.
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