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Патент USA US2070914

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- Feb. 16, 1937.
Filed March 28, 1936
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Patented Feb. 16, 1937
Max P. Neubert, Teaneck, N. J., and Oskar
Mueller, New York, N. Y.; said Mueller assignor
to said Neubert
Application March 28, 1936, Serial No. 71,400
4 Claims. (Cl. 112-—83)
This application is a continuation in part of hexagonal, octagonal or any other cross section,
our application Serial No. 55,148, ?led Decem
with means for removably attaching to each face
ber 19, 1935.
This invention relates to embroidering ma
5 chines or the like and more particularly to the
implement bars such as needle bars, borer bars,
gtc, and means for ‘ movably supporting said
As hitherto constructed each bar carries a sin
10 gle row of implements and is so mounted in the
machine frame as to be capable merely of a hori
zontal reciprocatory motion, whereby the imple
ments are caused to perform their embroider
ing operation. According to the embroidery de
15 sign to be produced on the fabric these imple
ments, as stitching needles, borers (or stiipfels)
are spaced apart for the particular repeat de
termined by the design, for instance, 4/4, 8/4,
12/4, etc. At 4/4 repeat all implements on the
20 bar, i. e., all needles or all borers, etc. are in use.
If the design to be embroidered is such that?rst
one repeat, then another repeat or perhaps a
third are used, then when a change is to be made
from one repeat to another, it is necessary to
25 remove from the bar alternate needles or borers
or alternate groups of needles or borers accord
ing to the particular repeat.
With modern embroidering machines which
are from 10 to 14 yards long, each bar carries
30 hundreds of such implements and it is quite a
tedious work consuming sometimes days to- re
move or replace the implements in a bar in or
der to change the repeat. It is, of course, obvi
ous that during such period the machine remains
35 idle. Moreover, when a two or multi-colored de
sign is to be produced, the change from one color
to another also consumes considerable time as
the threads of one color have to be cut off and
removed from the stitching needles and threads
40 of a different color rethreaded.
The object of this invention is to provide a
construction whereby these drawbacks will be
obviated and whereby it is possible to change the
arrangement of the implements for the different
45 desired repeats or colors within but a few min
of said bar a row of implements, so that the
implements on each face of the bar may in ad
vance be spaced according to the repeats or the '5
colors desired. Thus, the implements projecting
from one face of the bar may be spaced for 4/4
repeats, those projecting from another face may
be spaced for 8/4 repeats, etc. Only the imple
ments which project from the face directed at a 10
right angle toward the vertically extending tam
bour frame are in operative position while the
implements projecting from the other faces are
in inoperative position at that time. This polyg
onal bar is so mounted in the machine frame 15
that in addition to its horizontal reciprocating
movement toward and away from the fabric
which it carries out in its performance of the
embroidering operation, it also is capable of be
ing turned on its longitudinal axis in order to 20
change the implements of one face to that of
another. of said polygonal bars. It will be seen
that the change of the implements for a dif
ferent repeat or different color can thus be ac
complished very easily and quickly ‘by a mere <
rotation of the bar around its longitudinal axis.
Furthermore, in order to avoid the necessity of
bodily removing one kind of implement bar and
replacing it by another kind, or the necessity of
lowering or raising the tambour frame to the 30
level of the operative implements, according to our
invention, the different sets of implement bars are
additionally so supported and interconnected that
through a mere rotary motion one of the imple
ment bars is raised into operative position while 35
the other is lowered and vice versa.
In the accompanying drawing which consti
tutes part of this speci?cation and in which simi
lar reference characters denote corresponding
Fig. 1 is a top plan view of our implement bar
supporting device.
Fig. 2 is a sectional side elevation thereof
showing the implement bars adjusted for boring
utes, and thereby considerably increase the em
Fig. 3 is a similar view showing the implement
ciency of the machine and reduce the expense of
bars adjusted for stitching operation.
Figure 4 is a section on line 4-—4 of Fig. 2.
Fig. 5 is a perspective View of a borer bar, and
Fig. 6 is a detailed top plan view of a part of ‘50
the needle bar.
Referring more speci?cally to the drawing, ill
and II denote bars for supporting the needles N
Another object is to so mount the different im
50 plement bars in the machine that by a single
operation the said bars can be alternately
brought into and removed from operative posi
tion relative to the fabric frame.
The novel construction comprises a polygonal
55 bar either of triangular, square, pentagonal,
and borers B respectively, used in performing the
embroidering operations. Each bar is of square 55
or other polygonal cross section and provided on
each face with a longitudinal row of sockets to
tion. During the boring operation, the borer bar
I I is reciprocated horizontally, sliding in the slot
hold the implements.
As stated in our copending parent applica
tion, the sockets for the needle bar preferably con
sist of transversely extending and equidistantly
of the forked end of the arm 20.
To change from boring to stitching, the arms
l4, l5 are swung in the opposite direction, so that
the arm M of the needle bar If! extends per
arranged grooves, channels or hollows Hla for the
engagement of ‘the tail ‘ends of the needles N, the
eyeletted ends of which are adapted to project
pendicularlyto the tambour frame II‘, while the
10 laterally from the respective faces of the bar. Ar
ranged parallel to and adjacent to each groove
Illa is a second groove [0b to engage the down
wardly projecting flange or bead l2a of a clamp
ing plate l2, one for each needle, which is adapted
to extend over the tail end of the needle 7N when
mounted in the groove Illa, and which is tightened
arm H‘: of ‘the borer bar ll extends at an angle
thereto in a downwardly directed position (Fig.
.3). In this position the needle bar also may be
turned on its longitudinal axis to bring the
needles of the desired repeat into operative posi
.The bars I0, 1! may be provided at their ends
or .any .other suitable points with handles (not 15
in position by a screw hold 13 working in a thread
ed bore Ii]c of the bar. This construction en
ables the spacing of the needles on the several
20 faces of the bar according to the particular repeat
desired, was shown in Fig. ‘6.
'The sockets of the borer 1(and/orstiipfe'l bar),
may,‘ as shcwn,’consis'tiof mere threaded bores IIIa
shown) whereby they may be conveniently turned
on their longitudinal axes.
‘It will be seen that according to our invention,
eachimplement bar is so supported relative to the
tambour frame that it is capable of three inde 20
pendent motions,-to wit, the'reciprocatory motion
imparted ‘to 'it through cam mechanism con
trolled from. the jacquard (not shown) for-the
tolengage the threaded tail ends of the borers B,
performance of the particular embroidering
.25 as shown=inlFig.15.
EachIbar-is formed with two or more cylindrical
tudinal axis ‘for v‘its ‘adjustment "for the desired
portions'or journals‘ l?', ll’ (Figs. :2 and :3) at
their ends vor intermediate their ends Ito be-ro
tatively borne \in transversely extending :arms : I 4,
15 frespectively, ‘fulcrumed at their .arear ends, as
function, the rotary motion around ‘its longi 125
repeat and ?nally ‘the implement bars may in
unison be turned vertically for the exchange of
one kind of implementsfor another.
Various modi?cations may-bemade in the 0011- I 30
at 1'4’, -l5',‘to vbrackets 16,311 respectively. These
struction without departing ‘from the principle
brackets are ‘fixed to ‘horizontal transversalrods
l8, ‘l8’. ' respectively, which are slidably borne
in the maohinelframe 2F ‘and whichiinwvelliknown
of ‘our invention. We, therefore, do ‘not wish to
restrict ourselves ‘to the details described and
What we/claim is:
1. Inanem'broidering machine having a verti
.135 manner are-‘operated to . reciprocate. alternately
‘the needle ‘bar .andib'orerbar toward and away
from the fta'mbour frame T. (indicated vby dotted
‘lines-in 'FigsHZiand ‘3) during the embroidering
' operation.
In:order to enable the exchange :of implements
performing-different functions in'the embroider
Iing- operation, 1. .e.,' from lboring vto stitching .and
vice versa, without ‘the :necessity "of bodily rre
movingthe respective bars .orv displacing'rthe .tam
45 bour frame,.ea‘ch of..the<.bars l?zand 1H is :addi
tionally engaged at one :end by "a bifurcated.» lever
farm 19,? 20%respectivelyythe lever arm l92being
:‘fulcrumedat I9’, andarm 2|! at 20' .in a sta
itionarylpartiF' ofthe machine frame F. The two
50 .arms‘are operatively connected together by a link
.2 l‘. The farm rl9 has anrear extension :IBZ. which
may also ‘be sbifurcatedffor the ~ engagement "of a
roller ‘or‘pin >22 'lcarriedzby ‘a bellcrank 23 {which
interconnected means engaging ‘saidbars' sothat ' 1
by a single operation said bars will be arcuately
swung to be alternately brought into and’out of
operative .positionzrelative/ to said tambour frame.
2; In 'anJembrOidering :machine :according vto
claim 1 in which saidmeans consist of bifurcated, ..
interconnected, rocking arms and .in which'm'eans
are provided for rocking the latter insunison.
3. .In an embroidering machine having a verti
cally disposed tambour frame, a plurality 'of hori
zontally supported polygonal implement bars,
each carrying om its‘different faces ‘differently
spaced sets. of implements for different functions
of the embroidering operation, means for re
may ibe operated in well known amanner vfrom a
driven tcam 124 zadapted‘to be controlled either
automatically fromra jacquard (not shown) or
ciprocatorily supporting said bars to perform
‘In operation,zwhenritisdesired .toiuse theboring
iimplem‘ents. or borers B,itheiarms l4, I5fcarrying
change of ‘the different'sets of:implements and
the bars I0, H are adjusted by turning them'on
cal direction of the-different ‘bars to alternately" 60
bring :either one (of the latter into operative posi
tion relative to :said tambour frame.
.4. In an embroidering machine having a verti
cally-‘disposed tambour frame, an implement bar
of polygonal cross section bearing on each'facev
'sets'of implements 'and reciprocatory means for
the borer bar II will extend .horizontally,*i. ie.,
perpendicularly :to-ithe tambour frame T, while
ltheiarm il'lliof'ithe needle ‘bar El?‘lwill ‘extend at
565 an angle thereto in an upwardly directed and,
‘therefore, in‘ inoperative'positi'on (Fig.2). ' After
" 10
cally disposed tambour frame, a plurality of
horizontally supported implement bars for differ
entfunctions vof ‘the embroidering operation and
such adjustmentithe :borer Pbar v1 1 'itself‘may be
turned ‘on its longitudinal axis to bring-the row
?of-lborers of :the desired :repeat .into'the "hori
“zontal: or operative position.
If according to the design to be'embroidered, a ‘
‘ different‘ repeat becomes‘. necessary," the l'borer .bar
v‘ll can be turnedon its longitudinal axis tolbring
‘thei'borers ~=of1 the desired repeat into - active posi
their operations, means for *rotatively‘mounting
said barsinisaid ?rst 'named'means .for the ex
‘means fonso'mounting‘said last‘ named means as
‘to :permit the simultaneous adjustment in.:a verti
supporting-said bar so as .to be rotatable around
its longitudinal axis for its adjustment according
to the set of implements desired'andgmeansfor
swinging isaid ?rst named means arcuately into
and out of operative position.
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