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Патент USA US2108773

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Feb. 15, 1938.
R. H. LA'WSON
2,108,773
TAKE-UP ROD
Filed April 28,1936
2 Sheets-Sheet 1
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Feb. 15, 1938.
2,108,773
R. H. LAWSON
TAKE-UP ROD
Filed April 28, 1956
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2 Sheets-Sheet 2 ‘
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Patented Feb. 15, was
2,103,773
24083175,
TAKE-UPnoD'lJ
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..'..'“.'1>tobert fl.‘Lawsoingllawtucket, 3.11., “assignor to I
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l, ss?einphillgcompany, Central Falls, R; 1., a cor-v
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Duration of Massachusetts‘
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1 '-"_Application‘-April 28, 1936, Seria‘ll‘No'. 76.7.77
‘ "
ideas;- (01,-,- 66+146>1
" Thiscaseinvolves take-up rod‘suchasis'com
‘m'only ‘.used j‘
,in'ulti-feed‘ knitting ' 'nrachines,
which ha's'av special "feature'of being extensible so
that threading on machines of large size is greatly
anlithe,d.*.1"v
.
,
’ The take-‘up: rods "comprise a rectangular base
or holder 6 from-which extends a tubular part ll
A’ wireextension‘Wilts-within the tubular part
‘I and'is bent as shown at 9 to carry a porcelain
or other yarn guide I0 through which a yarnll l'
"lnthe drawings:v
is threaded, this yarn comingfrom a cone or
> ‘Fig. 1 is "a" section ihmngipm of g'knittins other'supply. The extension, 8 is connected for
machine and one of’ the, extensibleftake-upy rods ‘normal unitary engagement and operation with
in operativegposition‘; and 'j p
y
7
-
,
p
10 iFig'nz'is a similarlviewb‘ t sh‘owing'therodex
tended toaposition for'threa'dingQetc." ‘ “
_
J .
‘ ?yMultis-f‘eed knitting machines aresom'etimes
provided with a‘seriesfo'f thesejsorjckilled take-up
'1 15
- the] tubular part 1 by means of a tension spring
12. attachedtoeach: element. The spring serves
to _ draw "the extension down into the tubular
portionina telescopic fashion asshown in Fig. ‘1‘,
but allows it to be withdrawn or extended thereby
‘rods or arms,.onei for each yarn,‘ vthe function ‘ greatly.‘ increasing the ‘length of the arm at such
of‘ the‘rod ‘being to" r‘elievejtension in its p1articu-, times'_ as it isi'de‘sired to'tread it. The end of ‘the
l'ar'yarn' anew ‘avoid breakagelof yarn‘ andjiree ' part‘?has. been rounded off. toallow it to enter
quentlstoppingiof the machine. It'would other
wise make the operation“ of the machine more
certain and provide the feeding of yarn under a
20 more even tension.
These rods are normally
mounted at the top of a multi-feed machine and
thus are necessarily somewhat inaccessible to the
operator since they are very likely to be out of his
the" tubularjportionj with aininimum of ' effort.
" The base or holder ‘6 has an extension i3 pro
jecting in the opposite direction from. the tubular
part at which has been attached a spring It for '
the purpose of resiliently holding the rod in the
‘position shownin Fig. 1. This spring M has
been attached to a clip l5 which is in turn hooked
about the rim, of a disc IS, the hub I‘! of which
25 tion. Such take-up‘ rods may swing throughout ‘ is ?xed to post I. This disc may be moved along
a de?nite are for relieving tension in yarns
the post for the purpose of simultaneously ad
threaded through them and further, may move justing all the springs M. The upper end of the
throughout an additional extent to actuate elec
‘spindle or post I carries a'conical disc: 18 which
trical or other stop mechanism. Such a con
serves as a stop for each of the take-up rods.
reach especially when in'their uppermost posi
struction forms the subject matter of co-pending
U. S. application Ser. No. 81,897.
.
It is the purpose of this invention to construct
a take-up rod or arm which will assume normal
dimensions when in‘ its operative position and
35 which will perform all the functions of the usual
take-up rod, but when it is desired to thread a
yarn through the end of any rod, will allow that
rod to be extended to a position wherein it may
be very easily handled and may be threaded
40 without resort to threading hooks or without
standing on a ladder, or otherwise inconvenienc
ing the operator.
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Referring to the ?gures of drawings, post I
which would extend upwardly from the center
45 of the machine carries- a support consisting of a
hub 2, spokes 3 and a rim 4 within which a
plurality of take-up‘ rods or arms have been
pivoted at 5, the point of pivot is determined by
a slot cut vertically within the rim 4, one slot for
50 each sweep, and a groove machined about the
In operation these rods will normally maintain 30
a position up against the stop “3 as shown in
Fig. 1, except when excess tension in one of the
yarns draws its rod down against the resistance
of a spring. This movement of the rod will com
pensate for all jerks and uneven tendencies in the 35
yarn as it is drawn from a supply by knitting
needles or by other devices such as positive feed
ing wheels or the like.
When it is desired to thread the yarn through
the eyelet 10 for any purpose, the operator may
reach up with a hooked instrument of some suit
able nature and will swing the take-up rod about
the pivot‘ 5 until it is in approximately the posi-'
tion shown in Fig. 2. In this position he will
draw the extension 8 from the tubular part 1 45
extending the spring as much as is necessary
until the ‘eyelet is in an accessible position. The
tension in spring l2 will be sufficient to prevent
return of the tubular part of the device since
the extension l3 will, be moved to a position 50
outer edge of the rim within which has been
wherein spring l4 although extended, will have
?tted a wire as indicated at 5 for the sweeps to
swing upon. Other convenient mechanical con
very little effect to return the part of the take
up assembly to upright position. This will be
evident from an inspection of Fig. 2 wherein the
point of connection for the spring to the exten 55
structions may be resorted to for pivotally
55 mounting these elements.
2,108,773
2, ..
?tting within said tubular part but movable
sion 13 is almost directly above the pivot 5. After
lengthwise thereof for the purpose described.
4. A take-‘up rod for machines of the type de
threading the take-up rod, the extension 8 will
be allowed to telescope within part 1 being drawn
scribed having a pivot, an arm extending in one
and guided therewithin by spring l2, whereupon
direction from said pivot and carrying an eyelet
the rod may be swung back to a position such
as it normally occupies. It will be necessary to
draw off a little slack yarn and to ?ip the rod
upwardly until the full force of spring l4 may be
advantageously exerted.
.
through which a yarn is to be threaded,~a short
extension in the other direction from said pivot
and a spring attached thereto for urging the rod
in one direction, said ?rst mentioned arm being
‘
constructed in such a manner that’ it can be 1O
In its broadest aspect this invention involves
readily extended in an axial direction and means
aillustrated’
take-up rod
andof means
the general
whereby
description
the rodof or
that:
‘a’ "for automatically returning the ‘said arm to its
portion of the rod can be swung down and ex-. original or active position.
5. A take-up rod for machines of the type de
tended to an accessible position for threading.
15 One particular construction has been illustrated
scribed having in combination a pivot, an arm 15
and that is to be interpreted as illustrative of ' extending in one direction and carrying an eye
the invention and not as limiting the same. The let through which a yarn is to be threaded and
7 means forrresiliently urging said arm in one di
invention is de?ned in the appended claims. _
I
20
claim:
’
r
rection, said arm comprising a tubular part, an
y
1. A take-up rod for machines of the type - extension ?tting within said tubular part and 20
extending axially thereof for carrying said eyelet
described comprising a yarn tensioning armv re
siliently urged in one direction and means at
tached to said arm for allowing the same to be
displaced along its length and to elongate the
said rod so that it will assume an accessible posi
tion for the purpose of threading.
-
2. A take-up rod for machines of the typerde
scribed having a pivot, an arm. through the end
of which a yarn is to be threaded and means
30 for resiliently urging said arm in _' one direction,
said arm being extensible axially to substantially
increase the length of the same for facilitating
threading.
35
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3. A take-up rod for machines of the type de
scribed having a pivot, an arm through the end
of'which a yarn is to be threaded and means for
resiliently urging said arm in one direction, said
arm comprising a tubular part and an extension
and a spring connected, to the extension and the
tubular part for drawing thetwo intotelescopic
engagement.
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6. A take-up arm for machines of the type 25)
described having in combination a pivot, ‘an arm
extending in one direction from the pivot, said
arm beingformed in two parts one of the parts
being slidable relative to the other so that one
part may-be extended and means for normally 30
maintaining the two parts in engagement and
to
resist
extension.
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'7. A take-up arm for machines of the type de
scribed having in combination a pivot and an
extending, arm, said arm being formed in two
parts and being extensible, one part being s-lidable
within and axially with respect to theother.
ROBERT H. LAWSON.
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