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Патент USA US2111477

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> March 15, 1938.
H. MCADAMS
'
2,111,477
STITCH TRANSFER NEEDLE FOR KNITTING MACHINES
Filed July 17, 1936
- 2 Sheets-Shem~ 1
INVENTOR;
Har'rH McAdams
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50”’
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ATTORNEY‘S.
March 15, 1938.
‘
2,111,477
H. MCADAMS
STITCH TRANSFER NEEDLE FOR KNITTING MACHINES
Filed July 17, 1936
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‘
2 Sheets-Sheet 2
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INVENTOR.
HEB McAdams
BY
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‘ATTORNEYS
2,111,477
Patented Mar. 15, 1938
UNITED STATES PATENT‘ OFFICE
2,111,477
STITCH TRANSFER NEEDLE, FOB-KNITTING v
,
MACHINES
'
Harry McAdams, Reading, Pa., assignor to The
Nolde and Horst Company, Reading, Pa., a. col’
poration -
Application July. 17,1936, Serial No. 91,182
2 Claims.
This invention relates to improvements in
knitting machines, and has particular reference
to an improved dial needle for use upon rib
knitting machines which are capable of trans;
(on. 66-95)
Figure 11 is a cross sectional view taken sub
stantially on the line Il_—ll of Figure 10.
Figure 12 is a modified form of the improved’
dial needle.
~
{
7
Figure 13 is aperspective view of the modi?ed
'5 ferring stitch loops from cylinder needles to dial _
needles, and vice versa. The needle is generally, form of the improved dlal'needle with the re
of the‘ type set forth in my application Serial silient loop expanding arm removed to show the
No. 68,526,v and is an improvement thereon in
‘that a groove or slot is provided in a side wall
10 of the needle for slidably receiving the point of
_ the spring bit arm, so as to permit the stitch.
‘
Figures, 14 and 15 are respectively views of
cylinder needles with transfer bit spring arms
‘and grooved arrangements similar to the pre
with respectnto another needle.
ferred and modi?ed forms of the dial needle
shown in Figures 5 and 12respectively.
In the drawings, wherein for the purpose of
illustration is shown a preferred embodiment of
the invention,'the letter A may generally desig
_
15 will be apparent during the course of the follow
ing detailed description.
In the accompanying drawings, forming a part
'of this speci?cation, and wherein similar-refer
ence characters designate corresponding parts
20 throughout the several views,
25
dial needle.
loop to slide thereover into transferring position
Other objects and ‘advantages of this invention
‘
detailed construction of the other parts of the
nate a knitting machine, which may include a
rotating cylinder B and a ‘rotatable dial bed C.
The cylinder B may have an associated set ‘of
Figure l is a vertical sectional view' taken
cylinder needles D and the usual and appropriate
through a cylinder and dial construction of the
means for actuating the same, which may in—
improved knitting machine, showing the asso
clude suitable cams vE and E’, and jacks F if
ciated features thereof.
desired.
»
.
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
needle associated therewith: the dot and dash
lines designating the normal butt directing
.
A set of dialneedles are provided for use in 25
the grooved dial bed C; These dial needles may
be appropriately designated by the numeral 21].
As part of the dial a stationary grooved cap G
is used. Suitable yarn feed ?ngers H are pro
vided for feeding various yarns to the dial and
Flgure‘3 is an inverted plan view of .the dial cylinder needles. The other associated parts of
cap, showing the needle directing butt grooves \ a knitting machine may be used, such as a‘ latch
_\ring K and web holder and sinker construc
and movable cam arrangement. _
.
Figures 4, 5 and 6 are respectively ‘views show
tionv L.
'
‘
35 \ing in top plan, side elevation, and opposed side , The general features~ of the knitting machine
> may be those of the Banner type, as shown in
elevation the improved dial needle.
30 grooves in the dial cap.
Figure this an enlarged cross sectional view
"
30
U. S. Patent No. 933,443, or if desired the knit
taken through the needle substantially on the ting machine may be of a stationary cylinder
line 5M5"- of Figure 5, and more particularly I type with a revoluble cam set. Preferably the
showing the manner in which the point end of knitting machine is of the type disclosed in my 40
U. S. application, Serial No. 755,621, ?led Decem
, the needle is buried in a groove or slot in the
ber l, 1934 or of the character set forth in my
sidewall of the needle in order to permit the ‘ more recently developed machine for automatis
free slipping of the stitch loop thereover.
cally knitting continuous strings of stockings with
Figures '7, 8 and 9 designate a typical dial and interchange of stitches between cylinder and dial
cylinder needle in a series of steps to effect the needles and vice versa, U. S. application Serial
transfer of stitch loops from the dial needle to No. 86,420, filed‘ June 20, 1936.
the cylinder needle.
1
The present application shows a dial needle
Figure 10 is a perspective view of the improved ' of the nature set forth in myapplication Serial
- dial needle with a resilient loop expanding arm No. 68,526, ?led March 12, 1936 in that the spring 50
associated as an integral part thereof cut away arm bit construction is an integral part of the
to, show the grooved construction _ of the loop ] needle itself and is not separately slidable in
expanding eye provided in the body of the needle, the dial with respect-to the needle with which
and to more clearly designate the groove in which - it is. associated.
the point end of the bit slides.
'
The dlalbedCasshowninFigure to: the‘
2.
2,111,477
drawings, may be keyed as at 25 to the dial drive
shaft 26. The upper surface of the dial bed C
cylinder needle D is extended, as shown in Fig
ure 4 of the drawings, to receive the stitch loop
may be grooved as in usual manner with dial
10. The fore end of the body 40 is provided with
an upwardly and rearwardly sloping stitch loop
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 ?ne gauge work. These grooves 21 are radially
disposed and each for their major length are
of the same width. They enlarge at their fore
10 ends 28, as is usual.
~
The dial cap G is shown inverted in Figure 3
of the drawings, and the groove and cam arrange
ment is shown in dot and dash lines in normal
relation to the dial bed and needle butt arrange
15 ment 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 direction indi
cated by the arrows in Figures 2 and 3 of the
drawings. Stationary stitch knitting and stitch
20 transfer cams 3i 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 earns 36 and
31 are provided on the cap G for de?ecting the
25 butts of the dial needles into grooves 33 and 34
respectively against the stationary cams 3i and
32.
These plunger cams 36 and 31 are actuated
by plunger mechanism, such as shown, at 3B in
Figure l of the drawings, and has been more
30
speci?cally described in my co-pending applica
tions Ser. Nos. 558,798, ?led August 22, 1931, and
755,621’, ?led December 1, 1934.
The improved dial needle 20 includes a body
40 of normal needle thickness and height, hav
35 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. Intermediate
its ends the body 40 has preferably an upstanding
butt 45 which may be either long, short, or
40 medium, as desired. The lower section of the
body 40 at one side is provided with a resilient
and yieldable loop expanding arm 50, in height
preferably one-half of the height of the body 40,
and in thickness preferably one-half of the thick
ness of the body. It may be formed by. splitting
the body 40, or by grooving the body 40 and
soldering the rear end of the arm 50 in place at
5|. It extends forwardly along the side of the
body, relatively disconnected therefrom, so that
50 it may be resiliently ?exed against the body to
engaging and expanding shoulder 1| at a. loca
tion 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 v‘H and ?ush therewith.
In the preferred dial needle 20 there is pro
vided in the side wall thereof, preferably for
wardly of the shoulder ‘I l , a groove or indentation
80 which may be elongated and which lies be
tween the top and bottom edges of this part of
the needle, and which is adapted to receive the
pointed end 8| of the bit arm 50; the latter being
tapered at its upper and lower edges to a point so
that this end of the spring arm may lie ?ush with
the outer side wall of the dial needle when the 20
spring arm is pressed flush against the dial needle.
With this arrangement the stitch loop may e?ec
tively slip over the bit arm 50 into properly ex
panded and extended position upon the eye and
against the shoulder of the needle for de?nite 25
and certain transfer position with respect to the
complementary cylinder needle. 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 6 and 11 of the 30
drawings, although not for as great a height as
that of the arm portion 55. This facilitates stitch
application over the eye and facile insertion and
withdrawal of the cylinder needle.
In the modi?ed form of .needle 2i!a shown in 35
Figures 12 and 13 of the drawings the slot or
groove 80' is located in the side wall of the needle
but opens at the bottom edge thereof, and the
pointed end of the bit arm 50a is likewise shaped
so that it will lie in this slot or groove 80n to per 40
niit proper stitch transfer.
The normal position of the loop expanding arm
50 relative to the body of the needle ‘is shown in
Figure 4, 5 and 5a of the drawings.- Sliding in the
groove of the dial bed the loop receiving eye open 4.1
ing is only expanded su?lciently to receive the
cylinder needle when the dial needle is pro
jected by the cams 31 and 32 to the positions
shown in the left hand portion of Figure 2 of
the drawings. In retractedposition the bowed 5
portion 65 of the resilient arm 50 is compressed ?at
provide with the body a thickness which is no
more than the normal thickness of the body 40 ' against the recessed wall of the body of the dial
and no more than the normal thickness of a needle so that'the maximum width of the dial
conventional dial needle.
needle at this loop expanding eye ,is then no
The body 40 at the side thereof facing the arm greater than the maximum width of the body 40
55
50 near the reduced portion 4| is concavely re
of the dial needle, as can readily be understoodlin
cessed, as shown at 60 in the drawings, from the the retracted positions of the dial needles shown
extreme lower edge thereof preferably to the top in the grooves of the dial bed in Figure 2 of the
edge of the body 40. This recess, due to the drawings.
60 thickness of the body at this location, is prefer
Solid black butts shown in Figure 2 of the draw
ably less than one-half of the normal thickness ings are the long butts, and the blank butts are
of the body 40 in order that the dial needle may the short butts. The cam 31 is depressed part
be disposed substantially opposite a comple
way and ?rst moves the long butt dial needles
mentary cylinder needle which is ‘to be inserted into the transfer position shown in the left hand
through the eye of which the recess 60 is a part, portion of Figure 2. The plunger cam 32 pro
without the necessity of relative lateral shift of jects the dial needles so that their loop expand
the cylinder or dial needles,'although such shift ing eyes are extended beyond the periphery of‘
may be accomplished if desired in accordance the‘dial, and in superposed relation over the com
with the arrangement which I have developed and plementary cylinder needles. The cylinder
70 set forth in my application Serial 110,136,420, ?led needles are elevated by appropriate cam means
June 20, 1936.
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vlii' after the manner substantially described in
The front end of the loop expanding arm 50 is my co-pending above mentioned application Serial
normally bowed outwardly at 65, in facing rela
tion with the recess 60, to provide therewith the
75 loop opening or expanding eye through which the
No. 755,621, ?led December 1, 1934, to receive the
stitch loops 70. As shown in Figure 8 of the draw
ings the stitch loop 10 is expanded by the eye
55
60
65
-
70
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3
9,111,477
"
Various changes in the shape, size, and ar
of the dial needle and rests against the shoulder
rangement of parts may be made to the forms
‘I I. Note that no part of the stitch loop is inter
fered with by the arm 5001‘ by the body of the of invention herein shown and’ described, without
dial needle as to impede its effective extension and
departing from the spirit of the invention or the
expansion for proper reception with respectto the
scope of the claims.
'
I claim:
a
cylinder needle which is to receive it. After in
1._ As an article of manufacture a knitting ma
sertion of the cylinder needle into the eye of
the dial ‘needle the loop slips with facility onto ' chine needie having a body portion provided with
the cylinder needle, and upon retraction of the a stitch drawing hook thereon, said body portion
10 dial needle the stitch will entirely clear without ' being reduced in height rearwardly of the hook 10
catching on any part of the dial needle, as can to‘ provide a stitch loop engaging shoulder directly
well be understood from Figures 4 and 5 of the facing the open hook of the needle, the body por
tion of the needle rearwardly'of said shoulder
'being appreciably recessed in. a side wall thereof,
, As shown- in Figure 2 of the drawings the cylin
der needles are preferably provided in number a spring arm secured to the body portion of the 15
needle at a point rearwardly of said recess with- ‘
twice the amount of the dial needles. The ar
rangement is substantially the same and for the out increasing the normal thickness of the said
same purposes as set forth in my above mentioned body portion of the needle, said‘ spring arm hav
drawings.
_
I
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co-pending application Serial No. 755,621, ?led
However, the dial-needles are
ing a forwardly extended resilient portion directly
cylinder needles and these cylinder needles are
tending to a point beyond the said shoulder, the
side wall of the needle forwardly of said shoulder
being longitudinally grooved to receive the free
20 December 1, 1934.
preferably almost directly opposite alternating
the ones which are inactive duringone and one
rib knitting. They are only active during plain
25 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
30 needles maybe placed substantially opposite the
cylinder needles which are to receive stitches
therefrom is made possible by vreason of the im
proved loop expanding eye construction of the
dial needle.
~
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It is of course to be understood that I contem
plate to make a cylinder needle having a loop
facing said recess to ‘provide therewith. a needle 20
entering eye, said'spring arm at its free end ex
end of said arm in a sliding relation therewith, 25
the resilient portion of said spring .arm being
collapsible within said recess when the needle is
in a needle bed groove so as not to increase the
aforesaid normal thickness of the needle body
portion.'
30
2. As an article of manufacture a knitting ma
chine needie having a body portion provided with
a stitch drawing hook thereon, said body portion
being reduced in height rearwardly of the hook
to provide a stitch loop engaging shoulder directly 35
facing the open hook of the needle, the body por
tion of the needle rearwardly of said shoulder
to the above described for the dial needle, and being appreciably recessed in a side wall thereof,
such cylinder needles have been shown in Figures a spring-arm secured to ,the body portion of the
14 and 15 of the’ drawings. The parts of these ' needle at a point reawardly of said recess without 40
cylinder needles are substantially identically the increasing the normal thickness of the said body
same as the similar 'parts of the preferred and portion of, the needle, said spring arm having a
modified forms of ‘the dial needles, and similar forwardly extended resilient portion directly fac
reference characters have been applied thereto ing said recess to provide therewith a needle
,entering eye, said spring arm at its free end ex 45
45 except that the exponents “b” and "c” have been tending'to a point beyond the said ‘shoulder, the
added to designate parts‘ similar to the needles
shown in Figures 5 and 1-2 respectively. The side wall of the needle forwardly of said shoulder
transfer of stitch loops from cylinder needles to being longitudinally grooved to receive the free
dial needles has been effectively described in my end of said arm in a sliding relation therewith,
expanding eye and shoulder arrangement'similar
50 above identi?ed co-pending application Serial No.
r755,621, ?led December 1, 1934, ‘and the-same
arrangement may be used with the modi?ed cyl
‘ inder needles of the present application.
From the foregoing it can be seen that an im
55 proved dial needle ‘has been'provided which differs
over the dial needle of my application Serial No.
68,526, in that the ’free,’end of the spring arm
lies within a slot, groove or indentation disposed
in the side wall of the dial needle.
the resilient portion of said'spring being collaps
50
ible within said recess when the needle‘is in a
needle bed groove so as not to’ increase the afore
said normal thickness of the needle body portion,
said body portion of the ‘needle along its needle ‘
bed facing edge being notched thru the entire 55
thickness thereof directly at the needle entering
recess, said resilient portion of the spring arm
directly facing said notch.
,
1' HARRY McADAMS.
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