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Патент USA US2111476

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March 15, 1938.
H. MCADAMS
2,111,476
STITCH TRANSFER MECHANISM FOR KNITTING MACHINES
Filed March l2,‘1936
2 Sheets-Sheet 2
INVENTOR.
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' March 15, 1938.
H. MCADAMS'
' '
2,111,476
STITCH TRANSFER MECHANISM FOR KNITTING MACHINES
Filed March 12, 1956
2 Sheets-Sheet 2
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ATTORNEYS.
Patented Mar. 15, 1938
2,111,476
UNITED STATES PATENT OFFICE
2,111,476
STITCH TRANSFER MECHANISM FOR
KNITTING MACHINES
Harry McAdams, Reading, Pa, assignor to _, The
Nolde & Horst Company, Reading, Pa., a cor
poratiom
Application March 12, 1936, Serial No.‘ 68,526
6 Claims. (Cl. 66-95)
This invention relates to improvements in knit
ting machines, and has particular reference to
cap, showing the needle butt directing groove
an improved dial needle for use upon rib knit
and movable cam arrangement.
ting machines capable of transferring stitch
a vloops from cylinder needles to dial needles, and
vice versa.
‘
The primhry object of the invention is the pro
vision of an improved knitting machine needle,
which may be either of the‘dial or cylinder type,
10 having an improved stitch loop expanding eye and
associated stitch loop extending shoulder there
on capable of expanding and extending a stitch
loop so that it may be transferred to a comple
mentary needle of another set of needles, with
out the use of transfer bits or other relatively
movable parts.
A further object of the invention is the. pro
vision of an improved knitting machine needle
having a loop expanding construction thereon by
20 means of which a stitch loop may be expanded
and extended for disposal upon another needle;
the loop expanding construction being of such
nature that it may be resiliently compressed to
the normal width of the body of the needle.
A further object of the invention is the pro
25
vision of an improved knitting machine having
complementary cylinder and dial needle sets in
‘which needles of the cylinder set are directly
opposed to needles in the dial set; the latter be
30 ing provided with improved means to effect a
stitch transfer from dial needle to cylinder needle
without the necessity of appreciable needle shift
ing, and without the use of relatively movable
' stitch transfer bits or'other associated parts.
35
-
. .
In the accompanying drawings, forming a part
of this speci?cation, and wherein similar refer
40 ence characters designate corresponding parts
throughout the several views,
Figure 1 is a vertical sectional view taken
through a cylinder and dial construction of the
improved knitting machine, showing the associ
45 ated features thereof.
Figure 2 is an enlarged plan view of the dial
bed of the machine, enlarged to approximately
twice normal size, and having the improved dial
needles associated therewith; the dot and dash
50 lines designating the normal butt directing
grooves in the dial cap.
Figures 3, 4 and 5 designate a typical dial and
cylinder needle in a series of steps to effect the
transfer of a stitch loop from a dial needle to a
cylinder needle.
.
‘
Figures '7, 8 and 9 are respectively views show
ing in top plan, side elevation, andsopposed side
elevation the improved dial needle.
Figures 10, 11 and 12 are bottom plan views of
the improved dial needle, showing respectively
the normal position of parts of the needle when
projected in stitch transfer relation; the position
of the parts when retracted fully in the groove
of the needle, and a view with the resilient loop
opening arm forming part of the eye of the nee
dle distorted slightly to designate its association
With the body and other parts of the needle.
Figure 13 is a-perspective view of the improved
dial needle with a resilient loop expanding arm
associated as an integral part thereof cut away to
show the grooved construction of the loop ex
panding eye provided in the body of the needle.
Figure '14 is an enlarged vertical sectional view
taken substantially on the line I t—l t of Figure 8,
through the loop expanding eye of the needle.
Figure 15 is a view showing how the improved -
loop expanding eye or construction may be like
wise adaptable vfor use upon a cylinder needle
where it is intended to use the knitting machine
for transfer of stitch loops from cylinder needles
to dial needles.
'
-
In the drawings, wherein for the purpose of 30
illustration is shown a preferred embodiment» of
theinvention, the letter A may generally desig
nate a knitting machine, which may include a ro
tating cylinder B and a rotatable dial bed 0. The
cylinder B may have an associated set of cyl
inder needles D and the usual and appropriate‘
Other objects and advantages of the inven
tion will be apparent during the course of the fol
‘lowing detailed description.
, Figure 6 is an inverted plan view of the dial
means for actuating the same, which may include
suitable cams E and E’ and jacks F if desired.
v A set of dial needles are provided for use in the
grooved dial bed 0. These dial needles may be 40
appropriately designated by the numeral 20. As
part of the dial a stationary grooved cap G is‘
used. 'Suitable yarn feed ?ngers H are provided
for feedingv various yarns to the dial and cyl
inder needles. The other associated parts of a
knittting machine may be used, such as a latch
ring K and web holder and sinker construction L.
The knitting machine upon which used may be
of the general character of the Banner type of
machine shown in U. S. Patent No. 933,443, or 50
if desired the knitting machine may be of a
stationary cylinder type with a revoluble cam
s-et. Preferably the knitting machine is of the
type disclosed in my U. S. application, Serial No.‘
755,621, ?led December 1, 1934 or of the character 55
2
2,111,476
embodied in my more recently developed ma
and no more than the normal thickness of a
chine for automatically knitting continuous
strings of stockings with interchange of stitches
between cylinder and dial needles and vice versa,
conventional dial needle.
shown in my U. S. application Serial No. 86,420,
?led June 20, 1936.
.
In my prior ?led U. S. application Serial No.
755,621, ?led December 1, 1934 and Serial No.
729,655, ?led June 8, 1934, I have shown the
10 associated use of transfer bits with dial needles
in order to effect the loop expanding and ex
tension _of the stitch loop for transfer to the
needles of another set. In the present applica
tion I do away with this by means of an im
15 proved construction of the needle itself, without
, weakening the needle; without interfering with
its normal knitting function, and without in
creasing the normal thickness or width of the
needle, so that with the needle ?ne gauge knit
20 ted work may be accomplished.
The dial bed C as shown in Figure 1 of the
drawings, may be keyed as at 25 to the dial drive
shaft 26. The upper surface of the dial bed C
may be grooved as in usual manner with dial
1 needle receiving grooves 21. These grooves are
of normal thickness so that a large number of
needles may be used in the dial for the knitting
of fine gauge work. These grooves 21 are radi
ally disposed and each for their major length
are of the same width; They enlarge at their
fore ends 28, as is usual.
The dial cap G is shown inverted in Figure 6
of the drawings, and the groove and cam ar
rangement is shown in dot and dash ‘lines in
normal relation to the dial bed and needle butt
arrangement in Figure 2 of the drawings. Thus,
the dial cap G may have a groove 30 wherein
the butts of the dial needles travel in the di
rection indicated by the arrows in Figures 2 and
40 6 of the drawings. Stationary stitch knitting
and stitch transfer cams 3| and 32 respectively
are provided for directing the dial needles into
stitch forming and stitch transfer relation along
grooved paths 33 and 34. Compressible plunger
45 cams 36 and 31 are provided on the cap G for
de?ecting the butts of the dial needles into
grooves 33 and 34 respectively against the sta
tionary cams 3| and 32. These plunger cams
3G and 3'! are actuated by plungermechanism,
such as shown at 33 in Figure 1 of the draw
ings, and has been more speci?cally described
in my co-pending applications Serial Nos. 588,798,
?led August 22, 1931, and 755,621, ?led Decem
ber 1, 1934.
The improved dial needle 20 includes a body
55
40 of normal needle thickness—and height hav
ing a reduced forward end ll provided with the
loop receiving hook 42. 'Preferably the needle
is of the latch type and has a latch 44.
Inter
60 mediate its ends the body 40 has preferably up
standing butts 45 which may be either long,
short, or medium, as desired.
The lower sec
tion of the body 40 at one side is provided with
a resilient and yieldable loop expanding arm
65 50, in height preferably one-half of the height
of the body 40, and in thickness preferably one
half of the thickness of the body. It may be
formed by splitting the body 40, or by grooving
the body 40 and soldering the arm 50 in place at
70 5|. It extends forwardly along the side of the
body, relatively disconnected therefrom, so that
it may be resilient-1y ?exed against the body to
provide with the body a thickness which is no
75 more than the normal thickness of the body 4.9
-
The body 40 at the side thereof facing the
arm 50 near the reduced portion 41 is con
cavely recessed, as shown at 60 in the drawings,
from the extreme lower edge thereof preferably
to the top edge of the body 40. This recess,
due to the thickness of the body at this loca
tion, is preferably less than one-half of the nor
mal thickness of the body 40 in order that the 10
dial needle may be disposed substantially oppo
site a complementary cylinder needle which is
to be inserted through the eye of which the re
cess 60 is a part, without the necessity of rela
tive lateral shift of the cylinder or dialneedles,
although such shift may be accomplished if
desired in accordance with the arrangement
which I have developed and set forth in my ap
plication Serial No. 86,420, ?led June 20, 1936.
The front end of the loop expanding arm 50
is normally bowed outwardly at 65, in facing
relation with the recess 60, to provide there
with the loop opening or expanding eye through
which the cylinder needle D is extended, as
shown in Figure 4 of the drawings, to receive
the stitch loop 10. The fore end of the body
40 is provided with an upwardly and rearwardly
sloping stitch loop engaging and expanding
shoulder ‘II at a location which is rearwardly
of the tip end of the latch end of the needle
when the latch is fully opened, and the extreme
free end of the resilient arm 50 is likewise sloped
in the same plane with this shoulder ‘II and
?ush therewith.
The lower edge of the needle 20 Just forwardly
of the shoulder ‘II is entirely cut away at 80
to receive an under-hanging lip 8| which is
provided at the lower edge on the fore end of the
spring arm . 50; said lip underlying the dial
needle in this recess, as shown in Figures 10 and
11 of the drawings, so that the arm 50 at its
forward free end may effectively take the stitch
loop and move it with exactness into proper ex
panded and extended position upon the eye and
against the shoulder of the needle for de?nite
and certain transfer position, as to all of the
dial needles with respect to the complementary
cylinder needles. A portion of the wall of the
body of the dial needle facing the bowed end
65 of the resilient arm 50 may be removed at 84,
shown in Figures 9 and 14 of the drawings, al
though not for as great a vheight as the height
of the arm portion 65. This facilitates stitch
application to the eye and facile insertion and
withdrawal of the cylinder needle.
55
The normal ‘position of the loop expanding
arm 50 relative to the body of the needle is shown
in Figures 7 and 10 of the drawings, and in this
position the lip 8| underlies slightly in the lower
recessed edge~ of the body of the dial needle. 00
Sliding in the groove of the dial bed the loop
receiving eye opening is only expanded suffi
ciently to receive the cylinder'vneedle when the
dial needle is projected by the cams 31 and 32
to the positions shown in the left hand portion 65
of Figure 2 of the drawings. In retracted posi
tion the bowed portion 65 of the resilient arm
50 is compressed ?at against the recessed wall
of the body of the dial needle so that the maxi
mum width of the dial needle at this loop ex 70
panding eye is then no greater than the maxi
mum width of the body 40 of the dial needle,
as can readily be understood in the retracted
positions of the dial needles shown in the grooves
of the dial bed in Figure 2 of the drawings.
75
3
2,1 1 1,476
I Solid black butts shown in Figure 2 of the
the lip of the spring arm in the recess beneath
drawings are the long butts, and the blank butts
the lower edge of the body of the needle permits
are the short butts.
the arm to e?‘lciently enter the stitch without
any chance of missing. In this connection it
should be noted that this feature is of considera
ble importance because normally the stitch is
drawn tight on top and at sides of the needle,
due to the web take-up pull upon the fabric.
Various changes in the shape, size, and ar
rangement of parts may be made to the form of 10
invention herein shown and described, without
departing from the spirit of the invention or the
scope of the claims.
The cam 31 is depressed
part-way and ?rst moves the long butt dial
needles into the transfer position shown in the
left hand portion of Figure 2. The plunger cam
32 projects the dial needles so that their loop
expanding eyes are extended beyond the periph
ery of the dial, and in superposed relation over
10 the complementary cylinder needles. The cyl
inder needles are elevated by appropriate‘ cam
means E’ after the manner substantially de
scribed in my co-pending application Serial No.
755,621, ?led December 1/1934, to receive the
stitch loops 10. As shown in Figure 4 of the
drawings the stitch loop 10 is expanded by the
eye of the dial needle and rests against the
shoulder ‘II. Note'that no part of the stitch
loop is interfered with by the arm 50 or by the
20 body of the dial needle as to impede its effective
I claim:
-
1. As an article of manufacture a knitting ma
chine needle having a body portion provided with
a stitch drawing hook thereon, the body portion
having a cam actuating butt transversely posi
tioned thereon and a stitch loop engaging shoul
der facing the hook of the needle between said 20
extension and expansion for proper reception - hook and said butt, the said body portion just
with respect to the cylinder needle which is to rearwardly of said shoulder being recessed in a
receive it. After insertion of the cylinder needle
side wall through part only of its thickness from
' into the eye of the dial needle the loop slips
the lower edge thereof upwardly, a stitch loop
with facility onto the cylinder needle, and upon spreading arm connected with the body of said
retraction of the dial needle the stitch will en
needle rearwardly of said recessand resiliently
tirely clear without catching on any part of the extending forwardly in direct facing relation with
dial needle, as can well be understood from Fig
ures 4 and 5 of the drawings.
As shown in Figure 2 of the drawings the cyl
inder needles are preferably provided in number
twice the amount of the dial needles. The ar
rangement is substantially the same and for
. the same purposes as set forth in my above
mentioned co-pending application Serial No.
‘755,621, ?led December 1, 1934. However, the
dial needles are preferably almost directly on
posite alternating cylinder needles and these
cylinder needles are the ones which are inactive
40 during one and one rib knitting.
They are only
active during plain knitting when for the most
part the knitting is done on the cylinder needles,
and it is to these cylinder needles that stitches
of the dial needles are to be transferred when
transferring from rib knitting to plain knitting.
The fact that dial needles may be placed sub
stantially opposite the cylinder needles which
are to receive stitches therefrom is made possible I
by reason of the improved loop expanding‘ eye
r _ construction of the dial needle.
It is of course to be understood that I con
template to make a cylinder needle having a
loop expanding eye and shoulder arrangement
similar to the above described for the dial needle,
and such a cylinder needle has been shown in
Figure 15 of the drawings. The parts of this
cylinder needle are substantially identically the
same with the similar parts of the dial needle,
and similar reference characters have been ap
(it plied thereto except that the exponents “a.” have
been added to. designate corresponding parts of
the cylinder needle. The transfer of stitch loops
from cylinder needles to dial needles 'has been
effectively described in my above identi?ed co
pending application Serial No. 755,621, ?led De
cember 1, 1934, and the same arrangement may
be. used with the modi?ed cylinder needle of the
present application.
‘
From the foregoing it can be seen that an
improved dial needle ‘has been provided with a
construction integral therewith which will per
mit of the efficient transfer of a stitch. The nat
ural resiliency of the spring arm spreads the
loop of the stitch to about three times normal
size when in transfer position. The disposal of
said recess to provide a needle entering eye, said
arm at its free end terminating adjacent the
shoulder of the needle and there having a laterally
extending lip, the lower edge of the needle being
notched to receive said lip at all normal positions
of the needle during operation.
2. As an article of manufacture a knitting ma-‘
chine needle including a body portion having a
stitch loop drawing hook thereon and a cam actu
ating butt, the needle bodybeing reduced at its
forward end and providing a stitch loop engaging
shoulder between the said butt and said hook in
facing relation with the hook, a resilient stitch 40
loopspreading arm connected with the body and
extending forwardly thereof and at its free end
terminating in a substantially ?ush relation with
the said shoulder, the lower edge of the body
below said shoulder being recessed and the said 415
spring arm being provided with a stitch loop
entering lip normally lying in the recess.
3. As an article of manufacture a knitting ma
chine needle having a body portion provided with
a stitch drawing hook thereon, and a yieldable so’
spring arm mounted upon a side of the body por
tion with a resilient portion extending freely for
wardly towards the hook end of the body portion
to provide a needle entering eye, said resilient
portion of the arm directly facing the side wall
of the body portion of the needle, the bed facing
edge of the body portion having a niche therein,
and the free end of the arm having a lip portion
extending laterally in normally socketed relation
within said niche and extensible out of said’niche 60
only when forced against its normal tendency to
do so.
4. As an article of manufacture a knitting ma
chine needle having a body portion provided with
a stitch drawing hook thereon, and a yieldable (i5
spring arm mounted upon a side of the body por
tion with a resilient portion extending freely for
wardly towards the hook end of the body portion
to provide a needle entering eye, said resilient
portion of the arm directly facing the side wall of
the body portion of the needle, the bed facing edge
of the body portion having a niche therein, and
the free end of the arm having a lip portion ex
tending laterally in normally socketed relation
4
2,111,476
within said niche and extensible out of said niche
only when forced against its normal tendency to
~ do so, the side wall of the body portion of the
needle facing said resilient portion of the arm
being laterally recessed through a portion of the
6. As an article of manufacture a knitting ma
chine needle having a body portion provided with
chine needle having a body portion and provided
with a stitch drawing hook thereon, said body
portion in a side wall thereof being recessed thru
a stitch drawing hook thereon, and a yieldable 5
spring arm mounted upon a side of the body por
tion with a resilient portion extending freely for
wardly towards the hook end of the body por
tion, the side wall of the body portion facing said
resilient portion of the arm being laterally re 10
cessed to provide with the resilient portion of the
arm a needle entering eye, the body portion of the
needle forwardly of said recess having a niche
a portion of the thickness thereof to facilitate the
close entry of a needle moving transverse to the
tending into said niche and normally socketed 16
thickness thereof, and said body portion being
notched in the bed facing edge thereof through
its entire thickness directly at said recessed por
tion.
5. As an article of manufacture a knitting ma
15
forwardly extending resilient arm directly fac
ing the said recess and notch.
said body portion, said body portion being notched
thru the thickness thereof directly at said recess
from the edge of said body portion opposite the
20 normal butt edge thereof, and a spring stitch
spreading arm mounted on the said side of the
body portion of the needle provided with a free
therein and the free end of the arm slidably ex
therein when the needle is in a needle bed, the
said arm being mounted upon the body portion
so as not to increase the normal thickness of the
body portion ‘and the resilient portion of the arm
being collapsible into the recess of the body por- ‘
tion when in the groove of a needle bed.
HARRY McADAMS.
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