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Dec. 3, 1946.
w..R. KILE
‘2,411,883
SKIP STITCH TUFTING- MACHINE
Filed Aug. 26, 1940
5 Sheets-Sheet 1
'Wa/y man R. Kile
32%
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Dec. 3, 1946.
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w. R. KILE
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2,411,883
SKIP STITCH TUFTING MACHINE
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Filed ,Aug. 26, 1940
5 Sheets-Sheet 2.
58
766 a '
4 '
3mm
I ‘65 a?WdyinpnRKtle
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Dec. 3, 1946.
’
w. R. KlLE
’ 2,411,883
‘
SKIP STITCH TUFTING MACHINE
Filed Aug. 26, 1940
5
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64
3 ‘Sheets-Sheet 5'
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4 7"
Patented Dec. 3, 71946
rinses
I 1 UNITED
STATES. ‘PATENT ‘ ~ OFFICE
25/111,883‘
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' SKIP s'rrrcn TUFTING MACHINE
Waymon R. Kile, Cartersville, Ga._ ’ I I
Application August 26; 1940, Serial N6.'354,295
c‘claims.
(01.112429)
2
This invention relates to tufting machines.
Figure 8 is an enlarged fragmentary sectiona
VAn object of this invention is to provide an
improved looper and cutting mechanism for loop
ing and cutting the threads.
,
view taken on the line 8—-8 of Figure l.
'
, Figure Qis a longitudinal section showing" a
' ' '
piece of fabric for tufts formed therein. accord
Another object of this invention is to providein
combination with a looper and cutting mecha
nism, means whereby the material may be ad:v
vanced relative ,to the table so as to provide
spaced groups vof. tufts.
ing to this invention.
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.'invention whichincludes va base or table struc
ture ll, an upstanding support orstandard. .12,
any arm~|3 and a head ill. The support i2. is
an improved material feeding means which is
simple in construction and which is vadapted to
intermittently move the material for the space
of several stitches or tufts so as to form evenly
3
» .
Referring to the drawings, the numeral Iii des
ignates generally. a sewing machine structure
constructed according to an embodiment-of this
)A further object ofthis inventionis to provide’
spaced groups of tufts'
‘
preferablyiof hollow construction-and the arm I3
is also hollow. and. extends above the‘ base or
i ' 15
A still ‘further 'objeotwof; this invention is .to
table II andlthe he,ad._~l4 isialsorvofhollow con
struction and includes-‘the conventional 'means by
. means of which the‘ needle chuck l5 may be-vere
provide any improved looper ‘and cutter together
'tically reciprocated relative to the table. i.i.- I
'
with an improved operating means therefor so
‘A drive shaft i6 is journalled through the arm
that the looper maybemoved to a loop receiv—.
I3 being disposed in substantially parallel rela
ing position and subsequently‘ shiftedto a loop 20 tion to the table ll and is provided atitsirear
cutting positionat which time :the cutting means I end with ‘a grooved pulleyil'l and -a ‘fly ‘wheel
is rendered active to cut one‘ orgmore-of the ‘ 18., The pulley ll’, is adaptedto beengaged by a
loops on the looper.
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belt which isv connected ‘to ‘a, suitable driving
~ '.
A further object'aof. this invention is to pro;
mechanism'iwhichmay be either a manual 'mech- ~
vide an improved cutting- means for cutting the 25 anismv in the form 'of a treadle structure or’may
loop mounted on the looper, the cutting means ‘
be connected to a power driven pulley.- A shaft
including a pivoted support mounted on the
i9 is disposed below the.- table It being, jour
looper structure and means for-adjustably secur
nalled in: a rear bearing 20 extending below
ing the. cutter on the support.‘
the‘ table 1 Iv and also jjournalled in a forward
To the foregoing objects and to ‘others which 30. depending bearing structure. 2_I. The shaft 19 at '
may hereinafter appear, the invention‘consists of . ’ itslrear end has secured thereto a sprocket 22
the novel construction, combination and arrange
and a chain 23 is trained about the sprocket 22
and extends upwardly through the standard l2
ment of parts‘ as will ‘be hereinafter referred
to and illustrated in theVaccompanying-draw
and'engagesabout a driving sprocket 24 which is
35 ?xed tov the drive shaft £6.‘ The sprockets 22
‘ ingawherein is shown anembodiment of the in
vention, but it is to be understood “that changes,
variations and modi?cations'may be resorted to
which fall within the scopei'of the invention as
claimed,
In the drawings-1'
I
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~ ‘and..24 are of the same size.
. Thai-shaft‘ l9 adjacent'thersprocket 2_2:has se
cured itheretoa spur gear 25 which isadapted
to-kmesh witha secondJ-spur gear 26 which‘is
a
' ;
?xed ‘toaa‘ shaft 21. The gears 25 and 26 have
airatio of 1,.'..»to-,,4 respectively.-~,»The
V _ shaft
v ‘~21. is
journalled in depending bearing :inernbers 28 and
away
' Figure
andI in
is a‘
section
detail of
side-elevation‘
a skipstitchi'tuftingmapartly broken ’
chine constructed according to an embodiment of;
.
this invention.
. 29'Ywhicli extend below thetabl'el L
~
Figure 2. is an enlarged sectional-lview'itaken
on the line 2-2 of Figural.
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Figure 3ris afragmentary sectionalview taken
on the line 3-3 of Figure 2;
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V
Figure 4 is a sectional ‘view taken;v onthe line
45
> .
The shaft’ ~
2'! is disposed laterally. of/the shaft] 9; ,"The shaft
‘21 also has‘secjure'd thereto ‘a cam member 311
adjacent» the gear 26 and'a's'. shown in Figure _8, ~
-. the cam member '38 comprises a plate v3| which'lis
formed". with a' pluralityiof' cam~lobes 32 which '
are of‘ equal height’ and equal distance apart.
4—4 of Figure 3.
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-The‘plate 3| is also formed with a relatively long
Figure 5 is asecti‘onal view taken-on theline _- I cam lobe._33, the purpose for which will ‘be here;
5-‘-5ofFigure4.
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Figure 6 is an enlarged fragmentary vsectional
view taken onethe line 6-76 ofFigure-‘lv. ‘
inafterdesoribed~
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A lrockhshaft 344 is rookabl-y mounted in bear
ings 35 and 35 ‘and as shownin Figure 2, the rock a- "
Figure '7 isa fragmentary sectional viei-v-ltalten 55 shaft .34 is disposed closely adjacent aside flange " r
on the line ill-‘1 iof Figureg4,_ ::
;t.;.i
l_ ,1
-' . 3.8 dependmszbelswithesiabiei 1;. .The. roskshaft
'
2,411,883
3
34 adjacent the rear end thereof has ?xed there
to a rock lever 39 which is formed with a bushing
or hub 40 engaging about the shaft 34. The lever
39 at its free end has mounted thereon a roller
4|, the roller 4| being mounted on a pin or shaft
42 which is ?xed to the lever 38. The lever 39
comprises a cam operated feeding lever and the
shaft 34 is a material feeding shaft for feeding
the material across‘the table II during the ver
tical reciprocation of the needle 43 which is ?xed
to the chuck |5.
The shaft 34 adjacent the forward end thereof
has secured thereto an arm or short lever44 as
shown in Figure 7 is formed with a guide rib 10
at a point downwardly from the upper end there
of. A loop forming member 1| is secured to the
head 69 and comprises a body 12 having a slot 13
therein through which a fastening member 14
engages. The fastening member 14 also engages
through the head 69 and by means of the slot 13,
the body" may be adjusted relative to the head
69 and relative to the needle 43. The body 12 at
its forward end has formed therewith a loop en
gaging member or hook ‘E5 which is directed
downwardly at its forward end as shown in Fig
ure 4 so that when the hook or looper ‘I5 is moved
forwardly as will be hereinafter described, the
hook 15 will project through the strand of mate
rial engaging through the needle 43 at the time
. _arm 44. The reciprocating feed dog arm or lever
the needle 43 is at its lowermost position.
45 has secured thereto at a point intermediate
The hook or looper ‘i5 is of such a length that
the ends thereof a substantially U-shaped feed
two or more loops maybe retained thereon and
dog 46 which is slidable in a slot 41 formed in the
the‘ downward curvature of the hook or member
table | I. The dog 46 is formed with a lateral ex
'!5 is provided in order that the looped strand of
tension 48 which is secured by fastening devices material
will not slide off thereof when the hook
49 ‘to the lever or arm 45. The lever or arm 45
15 is moved to the left as shown in full lines in
at its free end is formed with a slot 50 which
Figure 4.
opens through the free end of this lever or arm
The arm 5| is rockedby means of the shaft I9
and a roller 5| loosely engages in the slot 58. 25
which at its forward end has secured thereto a
The roller 5| is rotatably carried by an arm 52
collar 16. The collar 16 has secured thereto an
which is ?xed to a rock shaft 53.
eccentrically disposed pin 1‘! which engages
The operation of the rock shaft 53 is conven
through one end of a link 18. The link 18 at its
tional and is of the type shown in conventonal
opposite end is pivotally secured‘ as at 19 to the
sewing machines particularly a “Singer” sewing
upper end of the arm 6| so that for each rotation
machine and the operation of this shaft 53 in
of the shaft IS, the hook 15 will be pulled for
conjunction with the remaining apparatus is be
wardly to a loop receiving position and will also
lieved well known. The dog 46 on its upper edge
is formed with serrations 56 which are adapted - i be shifted rearwardly or to the left as shown in
Figure 4 to a loop cutting position.
to engage with the fabric or material moving
Therarm 6| at its upper portion has pivotally
transversely across the table I! so that when the
secured thereto a substantially T-shaped cutter
free end of the lever 45 is raised by means of the
support generally designated as 89. This sup
rock arm 52 and the lever 45 is also shifted trans
shown in Figure 2 and one end of a feeding dog
lever 45 is pivotally secured as at 46a to the rock
versely of the table II by means of the rock arm '1 r port 80 has the head or ?anged portion 8| there
44, the material will be moved relative to the 40 of pivotally mounted as at 82 on the upper por
tion of the arm 6| and the stem 83 of the sup
needle 43. In practice the cam lobes 32 are
port 80 has rotatably mounted on a pin 84 a
adapted to actuate the rock shaft 34 so as to
roller 85. The roller 85 rotatably engages a cutter
move the material relative to the table I l for sub
stantially one stitch and the long cam lobe 33 is ~11: operating cam 83 which is ?xed to the shaft 21
adapted to shift the lever 45 for a distance sub 45 at the forward end of this shaft. The cam 86
is formed with a- single cam lobe 8'! so that for
stantially , equal to three stitches although the
each rotation of the shaft 21, the cutter support
spacing effected by the long cam lobe 33 may be
ing member 80 will be rocked to a cutting po
more or less than this number of stitches. The
sition. The flanged portion 8| of the support 89
free end of the lever 45 is constantly urged down
wardly by means of a contracting spring 55 which 50 has secured at the end thereof opposite from the
pivot 82, a cutter member 88. The cutter mem
at its lower end is connected to a hook 56 se
ber 38 is formed with an upper cutting edge'89
cured to a U-shaped supporting member 51. The
and the cutter member 88 is also formed with a
opposite or upper end of the spring 55 is con
downwardly opening slot 96 through which a
nected to a link 58 which is pivotally secured as
at 59 to the lever 45 inwardly from the slot 5|].
55 fastening member 9| engages so that the cutter
member 88 may'be'?x'ed to the support 89 in ver
' In order to provide a means whereby the strand
of material may be formed into a loop below the
table H and subsequently the loops may be cut,
Ihave provided a combined loop forming struc
ture and cutter generally designated as 60. The 60
loop forming structure includes an upwardly ex
tending andlongitudinally arcuate arm 6| which‘
atv its lower end is formed with a bushing 62
mounted on a stationary shaft 63. The station
ary shaft 63 extends between the two upwardly
extending arms '84 and 65 of the U-shaped sup
port 51 and the shaft 63 is disposed in parallel
relation to the bight 66 of the U ‘support 51. The
rear leg’ 65 of the U-member 51 is'substantially
longer than the forward leg 64 and is secured by
a fastening device 61 to the bearing structure 2|.
Preferably the bearing structure 2| is formed with
a recess 68 within which the rear leg 65 engages.
The arm 6| of thelooper structure is formed at
its upper end with a head 69 and the‘ head 69 as
tically adjusted position. The cutting edge 83
is inclined upwardly toward the rear portion of
the’ loop forming hook 15 so that when the cut
ter 88 is raised to a cutting position, the rear
or high portion of the'cutting edge 89 will initial
ly cut‘the rearmost of the loops carried by the
hook or looper 15.
The pivotal member 82 comprises an elongated
headed shaft which extends through the upper
portion of the arm 6| and‘ upon which the cutter
supporting member 80 is pivotally mounted. A
bushing or sleeve 92 is disposed about the shaft
82 and bears against the outer side of the ?anged
portion 8| of the supporting member 85. A
tensioning spring 93 isdisposed about the shaft
82 and at one end bears against a collar 94 in
, terposed between the sleeve or bushing 92 and
the spring 93. The opposite ‘end of the spring
93 bears against a collar 95 which is secured in
2,411,883
,6,
adjustedposition relative‘ltoithe shaft'n by means
by‘ith'e greater rocking effectedby means of-‘the
of‘ a- setrserew 19s; The spring as‘ is‘ adapted i‘to
tension the cutting bladeiall' against l-the adjacent
cam'lob‘e 33L
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“ It will be- understoodrthat there‘ may be more
' sideo‘f the hook member or looper 715, ‘which ad
or less cam lobes 32san'd the cam-“lobe 33 may
be any desired length depending upon the’ space
ifcentside‘ is‘form'edwitha cutting edge 89a,
Figured,‘ coa‘cting with the cutting ‘edge 89 of
the cutter 88" soas'to'cut-the looped strands of
material" engaged’ about'th'e, looper‘ hook “'15.: The
ro1ler18'5iis yieldabl'y maintained against the cam
desired between each ‘group-of‘ stitches I 02'.’
In ,I
~ order‘to change the space between ‘the groups'of '
stitches and change the number of stitches" in
each group, it ‘i‘sronlyvnecessary- to change the
88v by meansv of a spring 9"!’ which at one end is 10. cam 38 and’ provide-acam with the desired 'num-,
co‘nnec'tedfto the stem 83 and at the other-end ,
i’s‘connecte'd to‘ a depending hook 9'8 vwhich is
?xed'to‘thebearingmember'37.
berof short cam-lobes-32 and thedesired length
of th'eilon‘g'cam lobe 33.
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'What I claim is:
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q-In' the use and operation of this machine, the
1'.’ A tufting machine comprising a reciprocabl'e
drive:shaft/i6v is ‘operated ‘by any suitable driving 15 needle, a loop holding member, means support-~
in’ ns‘ and rotation er the shaft 16 will-effect
lngqsalid member for swinging movement from
v__ v, calreoiprocationfof‘theneedle‘chuck iii-and
th‘e'needle‘ 43 "with
a ‘ strand
of tuft iii-‘ermine
.
,
abuttingv position to a loop receiving position,
a‘i-lo‘op cutting means carried by said member,
terial threaded through-the eye of th‘e'nee'dl'e ' said cutting means comprising a pair ofiangularly
43. It will ,‘beunderstood that the machine it! 20V relatedparts, meansmpivotally mounting one end
mayhave suitableguide means for the strand
of “one ofsaid parts to said member, a cutting
and also suitable'tensioning means therefor, such
element ?xed to the other end of said one part,
guide means and tensioning means being conven-v
a rotary cam, and a roller carried by an end of the
tional and well understood.
other part engaging said cam to thereby rock said
When the needle 43 is in its lowermost position
cutting means relative to said member.
through the feeding dog 46, the link ‘is will puil
2. A tufting machine comprising a reciprocable
the combined looper and cutter 60 forwardly so
needle, a loop holding member, means support
that the looper hook 15 will engage between the
ing said member for swinging movement from
needle and one strand of the material threaded
a cutting position to a loop receiving position,
through the needle. The needle is adapted to 30 a loop cutting means carried? by said member,
engage closely adjacent the rear face of the looper
said cutting means comprising a pair of angularly
hook75 so that when this member is drawn v
related parts,ymeans pivotally mounting one end
forwardly, it will be disposed above the eye of
of one of said parts to said member, a cutting
the needle and between the adjacent side of the
element ?xed to the other end of said one part, a
needle 43 and one strand of the material threaded 35 rotary cam, a roller carried by an end of the other
through the needle. When the needle 43 is raised
vpart engaging said cam to thereby rock said
the looper hook ‘i5 is moved to the left as viewed
cutting means relative to said member, and a
*
in Figures 2 and 4 with the looped strand of ma
means constantly holding said roller in contacting '
terial engaged about the hook ‘ ‘i5.
relation with said cam.
When the
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looper hook 75 is in its furthest position to the 40 I 3. In a tufting machine a material feeding
left of the needle 43, the cam lobe 81 will engage , means comprising a reciprocal'feeding dog having
the roller 85 so as to raise the cutter 88.
When only one loop is positioned on the book
a lateral extension at its bottom, an elongated
supporting lever arranged below and ?xed inter
15, ‘this strand may be positioned forwardly of
mediate its ends to the lateral extension of said
the forward edge of the cutter 88 so that this 45 dog, a rock shaft disposed atrig'ht angles to said
one strand will notbe cut when thecutter 88 is
lever, an upstanding arm ?xed at its lower end'
raised. However, with each forward movement
to said shaft adjacent one end thereof, means
of the looper hook 15 to a loop receiving position,
pivotally securing an end of said lever to the upper
the succeeding loop is pushed rearwardly so that _,50 end of said arm, a depending spring controlled
the succeeding'loop or loops will be cut by the
arm ?xed at its upper end to said shaft adjacent
cutter 88 when this cutter is raised by means of
the opposite end of the latter, a rotatable cam
the cam member 86.
'
The feeding dog 43 is reciprocated back and
below said shaft for shifting said spring controlled
arm, and a roller carried by said spring controlled
forth in an even stroke by means of the feeding
arm engaging said cam to thereby effect rocking
lobes 32 which will evenly rock the cam engaging 55 of said shaft, said cam including a disc-shaped
lever 39.
The lever 39 is held with,the roller
plate formed on its outer edge with a plurality of ,
in contacting relation with the cam 30 by means
of a spring 98 Whichat one end is secured to the
lever 39 and at the other end secured to a de
evenly spaced apart cam lobes, at least one of said
cam lobes being of greaterheight than the re
maining cam lobes to thereby eifect greater rock- v
pending supporting member I 80 which is ?xed 60 ing of said shaft.
to the underside of the table II. When the large.
4. A tufting machine comprising a reciprocable,
lobe 33 engages the roller 4| , the lever 38 is given
a greater movement so as to effect a greater move
needle, a loop holding member below said needle,
means supporting said member for‘ swinging
ment of the dog carrying lever 45. This will ‘cause
movement from a cutting position to a loop re
the dog 46 to move a greater distance than the 65 ceiving position, a loop cutting means carried by
distance e?ected by the even lobes 32. The ef
said member, said cutting means comprising an ' I
fect of this greater movement of the feeding dog
elongated substantially horizontal bar,‘ means
'48 will be to move the fabric or base Iill 'for~
pivotally mounting one end of said bar on said '
wardly a distance substantially equal to three
supporting means, a cutting element carried by
stitches. When the lever 39 is rocked» by means 70 said bar adjacent the opposite end thereof, a
of the lobe 32, the fabric l?l will be moved for—
depending bar carried by said ?rst bar, a roller
wardly only one space or one stitch as shownv by > 7 carried by said depending bar, and a rotary cam
the stitches J02, In the present instance ‘there
are three stitches I02 in each group and the space
I03 between each group of; stitches Inglis? formed
engaging said roller to thereby rock said cutting ,
means relative to said member.
~
75 , 5. A tufting machine comprisinga reciprocable
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QAILQQS
8
‘m1 vin to said head and engaging at one of its
needle, a loop holding member below said needle, _‘ , ,len thwise edges against said rib, -a downturned
means supporting said member for swinging
loop forming hook carried by said plate at one
movement from a cutting position to a loop re
end thereof, said plate having an elongated open
oeiving position, a loop cutting means carried by
ing therein, a fastening device engaging through
said member, said cutting means comprising an $1 said opening for securing said plate in longitudi
elongated substantially horizontal bar, means
nally adjusted position relative to said rib, a
pivotally mounting‘one end of said bar on said
supporting means, a cutting'element carried by
said bar adjacent the opposite end thereof, a de
pending bar carried by said ?rst bar, a'roller
carried by said depending bar, a rotary cam
engaging said roller to thereby rock said cutting
means relative to said member, and means hold
ing said roller in contacting relation with said
cam.
6. In a tufting machine an oscillatable loop
former including a rock arm, means for rocking
said arm, a head carried by said arm, an elongated
rib carried by one side of said head and
disposed in proximity to the top of the latter, a
rectangular plate disposed in face abutting re
spring controlled T-shaped cutter support on the
said side of saidhead below said plate and bodily
shiftable with said rock arm, tensionable means
engaging through - an end of the cross arm of
said support for rockably mounting said support
on said head, a roller carried by a free end of said
T-shaped support, a loop cutter, means securing
said cutter on the opposite end of the cross arm
15 of said support below said hook, and means
engageable with said roller for rocking said
support on said head to thereby shift said cutter
to a cutting position relative to said hook.
WAYMON R. KILE.
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