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Патент USA US2109423

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Feb. 22, 1938.
Filed Dec. 10, 1935
. y
Patented Feb. 22, 1938 '
Waldemar Heinitz, Chemnitz, Germany, assignor
to Schubert & Salzer Maschinenfabrik Aktien
gesellschaft, Chemnitz, Germany I
Application December 10, 1935, Serial No. 53,811 i
In Germany December 10, 1934
(Cl. 66-—101)
1 Claim.
The present invention relates to ?at rib knit
ting machines for the manufacture of tuck loops
or tuck wrap loops.
Tuck loops are obtained hitherto upon ?at rib
C1 knitting machines by the fact, that, by means of
presser'plates, presser combs or the like, a num
range of the heads of the frame needles, all the
frame needles are pressed by the general presser.
For this purpose a special cam is provided adapt
ed to impart the greater movement'to the presser ‘
which for this purpose is necessary. All the
press instruments could, however, be brought‘
into the range of the heads of the frame needles
in plain rows of loops also.
range of the presser. Consequently, this tuck .
The essence oi the invention is not altered,
10 patterning was limited to repetition according if instead of the press instruments individually 10
movable frame needles are, under pattern con
to rows.
Tuck ‘wrap loops are obtained hitherto upon trol, brought into or withdrawn from the range
ber of frame needles are, according to rows,
not pressed or prevented from moving into the
?at ri'b knitting machines by the fact, that the _ of the 'presser by means of the Jacquard appa
thread or wrap guides of the Jacquard apparatus ratus.
It is also of no importance, whether the‘Jac- 15 '
15 each present their thread to at least two frame
needles which thread is then sunk without a quard apparatus is arranged for a single group
ground thread being presented to the frame ‘of thread or wrap guides or a Jacquard appara
needles, whereupon the needles, carrying this toe with a plurality of groups of such guides is
thread, are pressed by a common presser, so
In the accompanying drawing some embodi- 20
20 that closed continuous rows, of tuck wrap loops
are formed.
ments of the invention ‘are shown by way of
The present invention allows 'an increase of
the patterning possibility of the tuck loopsas
well as the tuck wrap loops, as individual tuck
25 loops may also be ‘formed as tuck wrap loops at
any desired points of the row of loops.
To obtain the desired object, special press in
-struments are provided which, by means of a‘
special Jacquard roller or by means of the Jac
30.quard roller already present for producing plat
ing wrap loops; are brought into or withdrawn
from the range of the heads of the frame nee
dles. The special press instruments are then by
the general presser pressed against the frame
3-.) needles, whereby by. the frame needles, not
pressed under pattern control, tuck loops ac
cording to pattern are obtained,>and whereby
pressing under pattern control of the frame nee
dles carrying thread is obtained when forming
40 tuck wrap loops, so that tuck loops and tuck
wrap loops respectively are produced.
In this manner," tops or rib‘ tops may be
formed in-the row of loops of which any desired
tuck patterns may be obtained, or any desired
4'5 tuck wrap patterns may be produced in the row
In this drawing:
Fig.1 is aside elevation, partly in section, of
as much of a ?at rib knitting machine as is nec- 25
essary for explaining the construction and op-.
cration of the arrangement according to the
Fig. 2 is a broken away' diagrammatic side
elevation showing the individual parts of the vde- 3o
vice according to the invention in the position
they occupy in the moment of pressing,_
Fig. 3 is a perspective view of the‘ press instru
mentsalso in the position they occupy in the
moment of pressing,
35 .
Fig. 4 is-a view of a portion of the Jacquard
card for the press instruments,
Fig. 5 shows'a double Jacquard apparatus with
several. groups of thread or wrap guides, show
ing the guides and the mechanisms acting on 40
them in the inoperative position,
Fig. 6 is a view of a portion of the Jacquard
card used ‘in combination with the apparatus
shown in Fig. v5, and
Fig. 7 is a diagrammatic side elevation of a. 45 '
' of loops if no tuck patterns are formed. The constructionaccording to which the individually
tuck wrap patterns may, furthermore, be com- - movable frame needles are, under pattern con
bined with wrap loops. These different. kinds of ,2 trol, brought into and out of the range of the
patterns, i. e., tuckpatterns, tuck wrap patterns‘ presser.v
In all figures, one bank of needles only is 50
‘ or plating wrap patterns may then alternate
successively and among one another respectively shown, the other bank being omitted for the
sake of simplicity.
in the direction of the wales.
In the construction shown in Figs. 1-4, I are
In plan rows of loops in which no tuck pat
terns and no. tuck wrap patterns are formed, the frame needles and 2 the thread or wrap
3 i, e,, no press instruments are shifted into the guides. These guides are operated by. the Jac- 55
2, 109,493
quard card 4 led around the /Jacquard roller 8.
8 are the jack sinkers and 8 is the general presser
in the range of which the press instruments “8,
8' may be brought which are guided in bearings
‘I. The press instruments 8, 8' are, by means of
springs 8, held in a withdrawn position and may
be brought into operative position by a Jacquard
card I I led around a special Jacquard roller l8.
Fig. 2 shows a press instrument, the general
10 presser, the frame needle and the jack sinker in
the position they occupy in the moment of press
ing; Fig. 3 illustrates in a perspective view the
same position of the individual parts.
The thread or wrap guides 2 are actuated, in a
.15 well known manner, by a Jacquard card 4 led
around the Jacquard roller 8.
shown in Fig. 6, the Jacquard card I8 is pro
vided not only with the two rows of perforations
necessary for actuating the two groups of thread
guides, but also with a third row of perforations.
If the Jacquard roller 8 is moved against the
thread guides 2, the latter are, under- pattern
control, brought into the operative position. If
the Jacquard roller 3 is moved in the opposite di
rection, the Jacquard card acts upon the slides
l8, so that, as long as perforations are not pres
ent in the third row, the double-armed levers l8,
H are shifted and the press instruments 8 acted
upon by the thrust head l2 (Fig. 5), are brought
into the range of the frame needles i. If, how
ever, a perforation is present in the Jacquard
card, the slide I 6 enters. this perforation, so that
If tuck loops are to be formed upon the frame the double-armed lever l8, l4 remains in its po-' ~
needles I, the portion of the press instruments sition and the thrust head l2’ (Fig. 5) does not
proper of the device operates only. By the Jac
20 quard card ll (Fig. 4), led around the special shift its press instrument 8'.
If a simple thread or wrap guide apparatus is
Jacquard roller l0,_the press instruments. 8, 8’ used as shown in Fig. 1, the thread guides may
are brought into the operative position. These be actuated by the Jacquard apparatus acting
press instruments are, by the general presser 8, upon the press instruments, instead of using a
pressed against the frame needles Ifso that
25 plain loops are formed at these needles. 0n the special Jacquard apparatus. Such a construc-tion of the double thread or wrap guide appara
needles, not pressed by the press instruments, tus is shown in Fig. 5. The Jacquard card must
tuck loops under pattern control are produced.‘
then be provided with two rows of perforations
If, however, tuck wrap loops are to be formed one of which acts upon the thread guides on
upon the frame needles ! in which case no movement of the Jacquard roller against the
ground thread is presented, the wrap or thread
guide apparatus as well as the press instruments, thread guides, whereas, by a movement of the
1. e., the whole device, are required. _The frame Jacquard-roller in the opposite direction, this
needles I_ are fed‘with thread by the thread guides roller acts with its‘ second row of perforations
2. By a Jacquard card ll (Fig. 4), led around upon the slides‘ actuating the press instruments.
the special Jacquard roller l8, press instruments
8, 8' are brought into operative position. These
press instruments are again pressed against the
frame needles I by means of the general presser
I According to the construction ‘shown in Fig. 7,
it has been supposed, that the frame needles I l
are individually movable. The arms 28 of dou
8. By pressing the needles, carrying thread, tuck
ble-armed levers 28, 28 engage the feet of the
frame needles I. The double-armed levers 28,
wrap loops under pattern control are obtained.
According to Fig. 5 a double Jacquard appara
other arms 28 of the double-armed levers 28', 28
28 are pivotally mounted upon a shaft 88. The 40
tus with several groups of thread guides is used. ' are actuated by the slides 8|, which are in?uenced
It has been supposed, that two groups of thread by a card 88 .led around the Jacquard roller 82.
guides are provided. Accordingly the Jacquard By this arrangement also the individually mov
card l8,_,l:ed around the Jacquard roller 8, must able frame needles may, under pattern control, 45
beprovided with two vrows of perforations for be brought‘ into and withdrawn from the range of
the two groups of thread guides. It has been the presser 8. I
supposed, that also the press instruments 8, 8' are
What vI claim is:
actuated by the same Jacquard card. The press,‘
A ?at knitting machine substantially for the
60 instruments 8, 8’ are actuated by thrust heads
purpose set forth, comprising frame needles, a
l2, l2’ provided at the ends of arms l8 of dou ' general presser, press instruments, wrap guides 50
ble-armed levers I8, I 4 which are pivotally and a horizontally movable Jacquard roller act
mounted upon a shaft ii. The other arms ll of ing upon said press instruments and upon said
the double-armed levers l8, l4 cooperate with wrap guides.
5.5 slides i8 actuated by the Jacquard card l8. As
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