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Патент USA US2124714

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July 26, 1938.
2,124,714
D. H. ROSENBERG
MITER FORMING DEVICE FOR CURTAINS AND THE LIKE
Filed Nov. 1'7, 1937
3 Sheets-Sheet 1
-
'
¢
NVENTOR.
pay/d hi?’asmbe
ATTORNEY.
Juli’ 25, 1933-
.
_
D. H. ROSENBERG
'
2,124,714
MITER FORMING DEVICE FOR CURTAINS AND THE LIKE
Filgd Nov. 17, 1937
3 Sheets-Sheet 2
INVENTOR.
_
BY
David H. Rosenberg.
?aaiwq, g
ATTOR_NEY.
July 26, 1938.
D. H. ROSENBERG '
2,124,714
MITER FORMING DEVICE FOR CURTAINS AND THE LIKE
Filed Nov. 17, 1937
:s Sheets-Sheet s
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INVENTOR.
Dav/'0’ //. I‘FoJE/Ybe/y
BY WM MWM
ATTORNEY.
2,124,71l5
Patented July 26, 1938
UNITED STATE S1 PATENT OFFICE
2,124,714 .
MITERi FORMING? DEVICE FDR‘ CURTAIN S
A‘N-D?THE LIKE"
David‘. H. Rosenberg, New York, N. Y.
Application-November 197, 1937; SeriaIJNo; 174,967
8. Claims. (0].. 112-437)
This invention relates to miter formingdevic'es
for curtains and-other'textil'e fabricarticles while
they are'being sewn‘, and- has for one of‘ its ob’-v
jects the provision of a device referred'to com‘
5' prising a border, frame, or band-forming- member
and means associated therewith for forming a
miter joint at the corners of such articles;
Another object of’ theinvention is the provision
\of such a device including a miter forming or
10*" shaping member or guide and pivotally mounted
means for folding the textile'material about the
miter forming or shaping guide.
A further object of the invention is the provi
sion of a device of this character
which the
15* miter joint folding means may be slid’ out- of
contact with the joint-after same has been-formed
without in anyway disturbing;thesaidijoint.
A still further object‘ of‘ the invention is the
provision of such a device which will turn the
20k raw edges of the‘ band orv border material" in
wardly to form a neat or clean edge where they
are sewn to the curtain or other textile‘ article.
Yet another object of ‘the invention is thepro
vision of a miter forming device in' which‘ the
25% miter forming or shaping‘ shell or gage-maybe
shifted into and out of operati'veposition.
Still another object of the invention is the‘ pro
vision of such a device in which the; border or
frame forming guide or members maybe pivotally‘
30? or hingedly connected to each other for‘conveni-l
ence in initially inserting‘ the border‘ forming
fabric.
Another object is to produce-a device of? the
character described’ in which themaximumsim»
35:1plicity of construction‘ and operation is secured‘.
Other objects and advantages will appear 'as'the
nature of the improvementsis better understood,
the invention consisting substantially in the novel
arrangement and co-relation of‘ parts hereinfull'y
41): described and illustrated in the accompanying
drawings, wherein similar reference characters
are used to describe corresponding parts through
out the several views, and then ?nally'poi‘nt'ed‘out'
and speci?cally de?ned and indicated‘ in the ap
45? pended claims.
The disclosure made the basisof' exemplifying
the present inventive concept suggests a practical embodiment thereof, but the invention7 is
not to be restricted'to the exact details of this dis
50\ closure, and the latter, therefore, is to be under
stood from an illustrative, rather than1 a>restric
tive standpoint.
In the accompanying‘ drawings:
Figure l is a top. plan view‘ of‘ one: form offmy'
55‘: improved miter forming d'evice', showing'th'etmiteri
forming shell in; the normal ineffective position
in~'full-1lines=, and’ also showing same in’ dot and
dash‘linesineffective miter forming position;
Figure 2 is an'inverted' end View‘ of the device
looking'from' the top of Figure 1;
5
Figure 35 is a‘ perspective view of same partly
broken away;
Figure 4 is a crosssectional view' taken on line
4'—4l, Figure 1:;
Figure'5‘ is a; fragmental view in side elevation 10‘
showing the miter folding or forming ?ngers
within the'i'nterior of the‘miter forming shell as
shown'in- dot and dash lines‘ Figure 1;
Figure 6'is a cross sectional view taken on line
6-5' Figure 1‘ showing‘the fabric folded about 1‘5i5
themiter forming shell‘;
Figure '7 is a plan view of the-miter forming
shell;
Figure'8 is a side view thereof‘ looking from
the right of‘ Figure-7;
20>
Figure 9v is a top- plan view-of a- modi?ed form
of my invention;
Figure l?'is'a" side view thereof looking from
the right‘ of Figure 9v and‘
Figure 11 is’an end view'thereof looking from 25%
the bottom of Figure9.
Referring‘now to Figures'l to 8 of the drawings
inidetail l5‘ indicates the'borcler forming shell and
guide of my improved‘ miter forming device, the
said shell comprising an outer U shaped‘ wall I6 30;
and‘ an inner U shaped‘ wall I’! preferably bent
therefrom, the said inner wall being spaced from
the outer wall to form a U shaped channel l8
into‘ which the. band or border forming material
l9‘ maybe threaded‘ or inserted. At‘ each end of 35?.
the channel. there is provided an L shaped strip
or member. 20‘for bending the raw edges of the
band forming. material inwardly to form turned
over. edges Z‘I'Where the border is secured or sewn
to‘ the curtain material 22' (see Fig. 4) .
Slidably yet frictionally mounted in guideways
23" is a'shell 24 which issubstantially U shaped in
cross’ section and the rear end thereof being cut
at an angle to form- acute-angular folding edges
25; A handle26~issecured to theupper end of the 45-1
shell-'24iby'whi'ch1it‘ may he slid to and fro in the
shell‘ l<5=between stops 2? and 28. The handle 26
protrudes outwardly from. the shell. l5. through
an-elongated. slot29'at' the right hand side of the
device, the'said'slot being formed between guide- 50\
ways23;
At the left of the'device and.v extending longi
tudi'nally thereof there is slidably mounted‘ in a
pair‘offspaced. apart bearings 39¢ a rod 3| which’
preferably'rectangular in cross'section. At the 55’
2
2,124,714.
rear end of the rod 3| there is pivotally yet some
and an upper section 62, the said sections being
what frictionally mounted a bifurcated block 32,
the said mounting being provided by means of a
pin 33 passing through the said block and a boss
34 forming the lower end of the rod. The block
is provided with a handle 35 by which it may
hingedly connected at 63, the said hinged joint
be rotated or swung about its pivot 33 to bring
the miter folding ?ngers or pins 36 into the in
terior of the miter shaping shell 24 to bend the
border material l8 inwardly' about the edges
25 and against the base 24a to form the miter
joint 45 (see Fig. 1).
If desirable the base 24a
may be slotted as at 4! to permit the border form
ing material to be fully pressed rearwardly
against the base 24a. A pair of stops or collars
(l2 and 43 are provided on the rod 3|, the collar
43 being normally drawn against the rear bear
ing lug 39 by means of a spring 44 one end‘ of
which may be secured to a pin 45 carried by the
front lug or bearing 30 and the opposite end
of the said spring may be secured to a pin 46‘
carried by the collar 43 which is secured to the
rod 39. The entire device may be adjustably
mounted on the sewing machine by means of
screws 47 passing through elongated slots 48 in a
base or extension 49 secured to the lower wall
portion of the outer wall l6.
In practice when sewing the border E9 to the
curtain material 22, the edge 5|] of the said our
30 tain is inserted between the upper and lower
layers of the said band and the curtain and
band are then sewn together by a row of stitches
35
40
45
50
55
5! from the lower edge 52 of the curtain‘to the
upper edge 53 of the said curtain. When in this
position the bar 54 carrying the presser foot 55
is lifted up with the needle 56 penetrating the
curtain and border material, and the miter shap
ing shell 24 is then moved to assume the dot and
dash position shown in Figure 1. With the miter
shell in its adjusted position, the block 32 is
swung about its pivot 33 to bring the ?ngers 3'6
into their upper or dot and dash position. Dur
ing the swinging of the said block and ?ngers the
border material is folded inwardly of the miter
shell and bent over the angular edges 25 to form
the joint 45. The rod 3| is then pushed rear
wardly of the machine or downwardly as indi
cated by the arrow 59 Figure 1 against the ten
sion of the spring 44 until the ?ngers 36 are fully
withdrawn from the miter joint. The block 32
is then swung to its normal ineffective position
and the spring 44 is then permitted to return
the rod to its normal inoperative position. If
desired the spring 44 may be omitted and the rod
may be manually moved forwardly and rear
wardly. It will be understood that during the
formation of the joint 40 the curtain 22 is moved
until the horizontal edge 52 assumes the vertical
position indicated in dot and dash lines at right
60 of Figure l. The edge 53 also assumes a vertical
position and it is then inserted and sewn to the
border l9 along its entire length after which the
mitering operation is repeated and so on until
the entire curtain is completed.
65
_
t is to be understood that the curtain material
does not pass through the shell, but the leading
end edge thereof is inserted between the upper
and lower layers of the folded band somewhat
beyond the rear end of the outer shell, and as
70 the sewing progresses the side edge of the curtain
material is manually fed or inserted between
the band layers by the operator.
In Figures 9 to 11 I have shown a modi?ed
form of my-invention wherein the band or border
75 forming shell 60 comprises a lower section Bl
being provided so that the device may be opened
up for the insertion or threading of the band or
border forming material. The lower section 6|
may be provided with bearings 64 in which the
rod 3W is slidably mounted, the miter forming
?ngers 36 being pivotally mounted at 33 as in
the form above described. The miter shaping or
forming guide 24b is in the present instance sta 10
tionary instead of slidable and is formed by means
lof an upper wall or extension 64EL bent inwardly
from the lower wall BI and by a similar exten
sion 65 bent from the upper wall 62. The said
extensions are spaced from each other and from 15
their respective sections to form a channel 66 in
all respects similar to the channel l8. L shaped
“strips 5'! are provided in the right hand of the
channel 66 to provide means for folding over
the edges of the band forming material where it 20
is sewn to the curtain.
The form of my invention just described is
precisely the same as that shown in Figures 1
to 8 with the exception that the shell sections
are hingedly connected to each other and the 25
miter forming guide is stationary instead of
movable.
To form the miter joint, the ?ngers 36 are
operated to fold the fabric about the angular
end edges 25a of the extensions 64 and 65 as 30
in the form of my invention previously described.
Slots or cut outs 68 are provided in the miter
shaping guide so that the device may be moved
close to the sewing machine needle.
From the foregoing it will be seen that I have 35
provided a simple yet eiiicient device for form
ing miter joints on fabric articles such as our
tains, handkerchiefs, table cloths and the like,
the use of which will save a great deal of time
and insure a uniformity of such joints through 40
out the entire article or multiplicity of articles
being sewn.
Having described my invention what I claim
as new and desire to secure by Letters Patent is:
1. Amiter joint forming device for fabric arti 45
cles, said devicebeing adapted to be secured to
a sewing machine and comprising a band folding
and guiding outer shell, an inner shell having
a mitered end, means for folding the band mate
rial about the said mitered end to form a miter 50
joint on the band, said means comprising pivot
ally mounted ?ngers adapted to be swung into
the interior of the inner shell at the mitered
end thereof, and a slidably mounted rod upon
which the said fingers are carried for withdraw 55
ing same from the interior of the inner shell after
the miter joint is formed.
5 2. A miter joint forming device for fabric arti
cles, said device being adapted to be secured to
a sewing machine and comprising a band folding 60
and guiding outer shell, an inner shell slidably
mounted in the outer shell for moving the said
inner shell towards and away from the sewing
machine needle, a mitered end on the said inner
shell, and pivotally mounted means for folding 65
the band material about the mitered end to form
a miter joint on the said band.
3. A miter joint forming device for fabric arti
cles, said device being adapted to be secured to
a sewing machine and comprising a band folding 70
and guiding outer shell, an inner shell slidably
mounted in the outer shell for moving the said
inner shell towards and away from the sewing
machine needle, a mitered end on the said inner
shell, pivotally mounted means for folding the 75
2,124,714
band material about the mitered end to form a
miter joint on the said band, and a slidably
mounted rod upon which the said means is car
ried as and for the purpose speci?ed.
4. A miter joint forming device for fabric arti
cles adapted to be secured to a sewing machine,
said device comprising an outer shell substan
tially U shaped in cross section, an inner shell
spaced from the outer shell forming a band fold
ing and guiding U shaped channel between the
walls of said shells, means at the ends of the
U shaped channel for folding the edges of the
band, a substantially U shaped shell slidably
mounted between the walls of the ?rst mentioned
- inner shell, a mitered end on the said slidable
shell, and pivotally mounted means for folding
the band material about the mitered end to form
3
thereof, a slidably mounted rod upon which the
said ?ngers are carried for withdrawing same
from the interior of the inner shell after the
miter joint is formed, and a spring for returning
the ?ngers to normal position after being with
drawn from the joint.
'7. A miter joint forming'device for fabric arti
cles, the said device being adapted to be secured
to a sewing machine and comprising a lower
shell section having a lower and upper wall
spaced from each other to form a channel sub
stantially one-half of a U in cross section, an
upper shell section formed similarly to the lower
section and hingedly connected thereto, the upper
wall of the lower section and the lower wall of
the upper section forming inner walls and ex
tending beyond the end of their respective outer
a miter joint on the said band.
walls, a mitered end on each of the said inner
5. A miter joint forming device for fabric arti
cles adapted to be secured to a sewing machine,
said device comprising an outer shell substantially
U shaped in cross section, an inner shell spaced
from the outer shell forming a band folding and
guiding U shaped channel between the walls of
said shells, means at the ends of the U shaped
channel for folding the edges of the band, a sub
means upon which the pivotal folding means is
carried, and spring means for retracting the said
slidable means after the material is folded about
the mitered end.
8. A miter joint forming device for fabric arti
walls, pivotally mounted means for folding the
fabric material about the mitered end, slidable
cles, the said device being adapted to be secured
to a sewing machine and comprising a lower shell
section having a lower and upper wall spaced
on the said slidable shell, pivotally mounted means ' from each other to form a channel substantially
one-half of a U in cross section, an upper shell 30
30 for folding the band material about the mitered
end to form a miter joint on the said band, and section formed similarly to the lower section and
a slidably mounted rod upon which the said hingedly connected thereto, the upper wall of the
pivotally mounted folding means is carried for the lower section and the lower wall of the upper
stantially U shaped slidably mounted shell be
tween the walls of the inner shell, a mitered end
purpose speci?ed.
6. A miter joint forming device for fabric arti
cles, said device being adapted to be secured to
a sewing machine and comprising a band folding
and guiding outer shell, an inner shell having
a mitered end, means for folding the band ma
terial about the said mitered end to form a miter
joint on the band, said means comprising pivot
ally mounted ?ngers adapted to be swung into
the interior of the inner shell at the mitered end
section forming inner walls and extending be
yond the end of their respective outer Walls, 35
means on the said extending walls for folding
the edges of the fabric, armitered end on each
of the said inner walls, pivotally mounted means
for folding the fabric material about the mitered
end, and a slidably mounted rod upon which the 40
said pivotally mounted folding means is carried
as and for the purpose speci?ed.
DAVID H. ROSENBERG.
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