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Патент USA US2411267

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NOV. 19, 1946.
Filed July 20, 1944
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Filed July 20, 1944
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Nov. 19, 1946.
Filed July 20, 1944
10 Sheets-Sheet 5
No“ 19, 1946-
Filed July 20, 1944
l0 Sheets-Sheet 6
Nov. 19, 1946.
Filed July 2o, 1944
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Nov. 19, 1946.
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Filed July 20, 1944
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Nov. 19, 194,6.
Filed July 20, 1944
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Patented Nov. 19,` 1946
Lyman Hamrick, Gaffney, S. C.
Application July 26, 1944, Serial No. >545,759
1 Claim.
(Cl. 112-79)
shafts and associated mechanism, and showing
the same in forward position;
tufting machine having ‘sufficient needles, loop
Figure 8 >is a view similar to Figure 7, but
ers, and cutters to finish a wide piece of cloth
showing the parts in a backward position where
so that this cloth can be cut into shorter lengths
for bedspreads.
5 some of the loops formed on the looper are being
This `invention relates to a multiple needle
It is an object of this invention to provide a
multiple needle tuftíng machine having a ver
machine Vhaving a cloth guiding apparatus dis
elements and its associated supporting shaft;
Figure 9 is a top plan view of a .portion of the
needle bar;
tically reciprocable needle bar having sufficient
'Figure 10- is a front elevation of a portion of
needles therein to cover the width of a bedspread
needle bar;
and having a throat plate on which the cloth
Figure 11 is a rear elevation of a portion of
rests to be pierced by the needles and having
wthe looper and cutter shaft randassociated mech
mounted for oscillation therebelow a rod having
thereon a plurality of loopers and having also
Figure 12 is a top plan View of the means for
mounted for oscillation in timed relation to the
moving the cloth guiding means backward and
oscillation of the looper rod a cutter rod which 15 forward and taken substantially along the line
is adapted upon backward movement of the
I2-I2 in Figure ‘1;
loopers to sever some of the loops on the loopers
Figure 13 is atop plan view taken from sub
together with means for pulling the cloth through
stantially along the‘line `III-‘I3 in Figure 1;
the machine in timed `relation to the movement
Figure 14 is a longitudinal sectional view :of
of the needles and having a support for support 20 the shaft and associated parts shown in the up
ing a roll of cloth which is unwound and passed
per right-hand portion of Figure 12;
through the machine so that a continuous length
Figure 15 is an isometric View of one of the
of >bedspread material can be tufted and whereby
looper elements `and its associated supporting
the continuous length can later be severed into
the shorter lengths for complete bedspreads, said 25
Figure 16 is a top plan viewof one of the looper
posed in front of the needles with means for
moving the cloth guiding apparatus laterally of
the needles back and forth in any desired‘pattern
to thereby cause the needles to ferm a circuitous
or serpentine row of tufts as the material is
passed through the machine.
Some .of the objects of the invention having
been stated, other objects will appear as the de
scription proceeds, when taken in connection with
the accompanying drawings, in which:
Figure 1'7 is a vertical sectional view near the
ends of the looper and cutter shafts and vshowing
the bearing supports `therefor and being taken
along line I‘I-I‘I in Figure 1 “or immediately to
the lright of part I'Il;
Figure 18 is lan enlarged top plan view of a
portion of the bedplate;
’Figure 19 is a detail VView showing the course
of the tufting yarn forming the loop;
Figure 20 is a view `similar to Figure 19, but
showing >the needle in a different position;
Figure 21 is a Vertical sectional viewralong
broken away;
~ 40 the line 2I-2I in Figure 19;
Figure 2 is a View similar to Figure 1, but
Figure 22 is an elevation of the clutch mech
showing the cloth feeding apparatus land the ‘
anism for driving `the take-up roll, with the an
support for the cloth roll omitted;
nular confining member removed; `
Figure 23 Vis 4a Vertical sectional view -along the
Figure 3 is a rear view of the machine with the
central portion thereof being broken away;
45 line 23-23 in Figure ‘22, and showing the an
nular member in place;
Figure 4 is an end elevation of the machine
Figure 24 is atop plan View of a detail of the
looking from the left-hand end in Figure 1;
cutter shaft and associated parts.
Figure 5 is' an end elevation of the machine
'Referring more specifically to the drawings, the
with the upper central portion thereof being bro
ken away, and looking at the right-‘hand end of 50 numerals I0 `and I I indicate upright end frame
members at one end of the machine and I2 and
Figure 1;
Figure 6 is a vertical-sectional View taken along
I3 indicate the upright frame `members >at the
the line 6--6 in Figure 1;
y other end ofthe lmachine. These frame members
are joined together at their top portions vby means
Figure 7 is a vertical-sectional View taken
through the bedplate and the looper and cutter 55 of top angle members I4 and I5. The upper ends
Figure 1 is a iront elevation of the machine
with some of the central portions thereof being
of vertical frame members I0 and II are con
upper portion of the rods 43. For each eccentric
54, there is a counter balance 5'I.
Rotatably mounted in suitable bearings 60 on
nected by an angle member I6 while the upper
ends of vertical frame members I2 and I3 are
connected together by a similar angle member I1.
Connecting an intermediate portion of the
the rear vertical angle members II and I3 is a
shaft 6I which has lixedly mounted thereon a
roughened take-up roll 62 which is covered with
left-hand vertical frame bars l0 and II is a cross
bar I8 which projects frontwardly and rearwardly
a suitable roughened material having projections
from the machine; whereas, vertical frame mem
bers I2 and I3 have a similar bar I9. Secured at
its ends to the proximate faces of end frame mem
bers I6 and II, I2 and I3 is a bed plate 26 which
ís in the form of an inverted channel member.
The bed plate 20 has a, plurality of elongated
slots 22 through which the needles pass in their
downward and upward movements, these slots
thereon similar to the covering for sand rolls in a
Loosely mounted on one end of this shaft 6I is a
disk 63 having a plurality of slanting slots or
notches 64 therein in which rollers 65 are adapted
to loosely rest. Fixedly mounted on the shaft 6I
is a cup-shaped circular member 58 which has an
annular portion adapted to loosely rit over the pe
riphery of the disk 63. An annular member 66 is
secured over the outer edge of the peripheral por
tion of cup-shaped member 58 to conñne rollers
being disposed immediately above the loopers
which will be later described. These slots are
elongated so as to permit the tufts to ride out
wardly through the rear end of the slots and also
65 which loosely rest in the notches 64. Fixedly
due to the thickness of the bed plate, they permit' 20 secured or integral with the cup-shaped member
the oscillation of the loopers in the slots.
.The upper horizontal frame members I4 and I5,
in additionto the end angle members I6 and Il
58 is an arm 63 which is slotted as at 'I0 and has
adjustablyV mounted therein by means of a bolt 'II
the lower end of an eccentric arm 'I2 whose upper
end surrounds an eccentric 73 ñxedly mounted on
the main drive shaft 25. The above-described ar
have a plurality of cross angles 23 secured there
between, the end angles and the cross angle mem
bers supporting a plurality of bearings 24 in which
is rotatably mounted a main drive shaft 25. This
main drive shaft has fixed thereon a sprocket
Wheel 26 which has mounted thereon a sprocket
rangement is similar to the free wheeling feature
employed in free wheeling in automobiles. Upon
the downward movement of arm 68, the rollers 65
will ride into the narrow portion between the
chain 2'I which is also mounted on a sprocket
notches 64 and the peripheral portion of the mem
Wheel 28 ñxedon motor shaft 29 of electric motor
ber 58 to move the take-up roll 62,' whereas, upon
the upward movement of the arm 68, no move-u
30 which is mounted on a suitable motor support’
plate 3| which is supported by a plurality of bolts
32 rising upwardly from I-beams 34 secured on
top. of horizontal top angle members I4 and I5.
_Secured on the front angle member i4 is an
elongated angle bar 35 having a plurality of holes
36 therethrough through which strands of yarn
ment will be imparted to the take-up roll 62. The
i other end of the shaft 6I has a similar struc
ture to that just described, except that the notches
are cut in the opposite direction and like ref
erence characters will apply with the prime nota
tion added and it will there be noted that the
are adapted to be passed on their way to the
arm 68’ is ñxedly secured to an angle bracket 15
needles. >Immediately below the angle iron 35 are 40 secured on the rear vertical angle member I3.
disposed suitable tension devices 3l through which
This will hold the shaft 6I in the advanced posi
the yarn is passed, there being a tension device 3'!
tion and prevent reverse movement of the same;
for each strand of yarn. The cross angle members
If desired, the arrangement on the left-hand end
23 can be made rigid enough to be supported en
of the shaft in Figure 3 could be an ordinary fric
tirely from the front and rear top angle irons I4 45 tion clutch or brake to hold the shaft 6I in the
and I5, but if desired, additional supports 40 can ^ position to which it is moved by the step by step
be secured to a channel member 4I welded at each
movement as a result of oscillation of arm 68.
ofV its ends to the end vertical angle bars I I and I3.
Mounted on the rear vertical angle members
.This channel member 4I has mounted thereon a
II and I3 is a pair of brackets 'I6 which have
plurality ofv bearings 42 in which shafts or rods 43 50 pivotally connected thereto the upper ends of
have vertical sliding movement. These rods 43 at
bars "Il, the lower end of the bars 'I'I having
their lower end are iixedly secured to a needle
rotatably mounted therein a roller 'I8 which is
:bar 44 >which has a plurality of needles 45 therein.
adapted to press by gravity against the take-up
This needle bar extends entirely across the ma
roll 62 to press the cloth thereagainst the same
chine and is of substantial structure so as not to
so that the cloth after being operated on by the
vibrate, and it has a plurality of vertically dis
posed holes 46 therein in which the needles 45
are adapted to be adjustably secured by means of
needles will pass upwardly between the rollers 62
and ‘I8 and fall downwardly from the top portion
of roller 18 onto the floor or a suitable container
set screws 41.
disposed therebelow.
.Approximately midway 'between the holes 46
and nearerthe front edge of the needle bar than
the holes 46 are vertically disposed holes 48
through which the strands of yarn 49 are adapted
to pass on their way to the eye of the needle. The
channel member 4 I has secured thereto a plurality
of downwardly projecting strap members 5I) to
the lower ends of which there is secured a presser
bar 52 having a plurality of holes in its horizontal
- Extending across the front of the machine and
slidably mounted in bearings 79 is a rod B0 which
is loosely connected to a crank arm 8| extending
from a switch box 82 from which a wire 83 leads
to the electric motor 30. Current is brought in
through a cable 84 into a control box 85 and a
set of wires 86 leads from the control box 85 to
the switch box 82, so that by sliding the rod 80,
the operator can stop and start the machine at
portion through which the needles'pass imme
diately before piercing the piece of fabric 53 which 70 will from any point in front of the machine.
is to have tufts applied thereto.
The main drive shaft 25 has mounted thereon
a plurality of eccentrics 54 which are surrounded
by an eccentric shaft 55, the lower end of this
shaft bein-g pivotally connected as at 56 to the
To the proximate faces of the forwardly pro
jecting portions of the angle members I8 and I9
are secured the ends of shafts 92 and 93. Adapted
to slide on the upper surface of these shafts 92
and 93_are a, pair of cross members 94 and 95.
On the outer ends of these cross members is
mounted a squared bar 96 which has an angle
member 91 thereon, the exterior surface of which
is serrated or roughened so as to prevent the cloth
or- fabric 53 from- slipping while on the surface
of~ angle' -member 91. The members 94 and 95
desired pattern, depending on‘the number of pins
|42 and their positionon worm gear |38.
‘ The main drive shaft 25 has ñxed onjthe left
hand end thereof when viewed from the front
of the machine a sprocket wheel |50 on which
is mounted a sprocket chain |5| which extends
are loosely confined on the rods 92 and 93 by
downwardly and is mounted on a sprocket wheel
means of members 81 spaced from members 94l
|52 fixed on `lower drive shaft |53 which is
and 95 by a'spac'er 88 and bolts 89. Rotatably
mounted in bearings |54 and |55 mounted on
mounted on top of the »inner ends of angle mein
cross angle irons |56 and |51.
bers 94 and 95 is a roller 98 under which the cloth
Fixed on this shaft |53 is an eccentric |60
53 passes on its way to the needles. The front
around which is mounted an eccentric arml and
edge of the bedplate channel member 20 has a
hub |6| whose outer end has a bolt |62 therein
which is adjustably mounted in a slot |63 in
downturned lip 99 welded thereto and over which
the cloth passes. Secured to the angle members 15 the lower end of arm |64 whose upper end is
94`and 95 and projecting downwardly is a pair
secured to an oscillating shaft |65. The oscillat-`
of supports Illlland |0I, the lower ends of which
ting `shaft |65 is rotatably mounted in suitable
are `hooked to provide a, support fo-r a shaft |02
on’which a roll of cloth 53 is adapted t0 beA
bearings |66 secured in cross bars |61 whose
ends are vertically slotted as _at |68 and are se
cured for Vvertical adjustment by means of bolts
|69 and |10, which project from blocks |'|| and
The shaft |02 has collars |03 thereon which
maybe adjusted to any desired position to hold
|12 which are fixed `to `outer surfaces of the ver
the rollV of cloth in proper alinement with the
tical side portions of the channel bedplate mem
needles. The cloth table which has been described
ber 20.
for sliding movement back and forth on the rods 25
Projecting upwardly from shaft |65 are arms
92 and 93 has a link |06 pivotally secured thereto
|13 which have rigidly attached tothe upper
ends thereof a looper holding shaft |14. This
as at |81 and the other end is pivotally secured
on a pin |08 fixed on the upper side of a worm
looper holding shaft has adjustably mounted
-thereon a plurality of 1ooper supporting mem
gear |09 which is mounted for rotation on a
bracket ||0 and meshing with this worin gear 30 bers |15 which members |15 are adapted to be
adjusted along the shafts |14 and in proper an- i
|09 is a worm I|| fixed on a shaft ||2 rotatably
mounted at its ends in bearings disposed on
gularity by means of being split at‘one end and
bracket ||0.
having a bolt |16 for pressing the two parts to
gether to clampingly engage’ ‘the shaft |14.
Each member |15 has a rearwardly projecting
shoulder ||4 and on the portion ||5 of the shaft 35
portion which has a pair of grooves cut vertically
is loosely mounted a member having V-pulleys
The shaft ||2 has a shoulder II3 and also a
from the rear outer corners thereof providing a
I |6 and | I1 integral with each other and mounted
rib |80, and mounted for vertical adjustment on
for rotation on portion | |5 of the shaft | I2. This
this rib is a looper supporting member |8| which
member Ilia` is loosely confined on portion ||5
by means of a nut- ||8. The member having 40 is forked at its lower end and is adapted to fit
on both sides of the rib |80 and the rib |80 has a
V-pulleys ||6 and II1 integral therewith has a
screw threaded hole therein in which a screw |82
serrated face |20 projecting to the left in Figures
is threadably mounted after being passed through
1, 12, and 14.
a washer |83 to firmly affix the looper supporting
There is a key-way |2| mounted in shaft ||2,
and a clutch member |22 having a serrated face 45 member |8I in vertically adjusted position.
The looper supporting member` |8I has secured
|23 is mounted for sliding movement on the key
thereon by means of a couple of screws |84 a
way I2I. This member |22 has a peripheral
groove |25 which is adapted to be engaged by
looper bill |85 which has a downturned lip |86
at its front end.
the forked prongs |26 and |21 of a member |28
Projecting downwardly from oscillating shaft
which is pivotally mounted as at |29 in a sliding 50
|65 is an arm |81 which has pivotally secured
block |30 mounted in a suitable guide way, not
thereto as at |88V a link |89 whose other end is
shown, on the upper surface of a bracket |3I,
secured by a bolt |90 in any one of a plurality of
which has an upturned end |32 for confining a
holes |9| in an arm |92 afñxed -to and projecting
compression spring |33, which normally presses
the lower end of member |28 to the left in Fig 55 downwardly from oscillating cutter shaft |93.
ure l.
o Rotatably mounted at its ends in a bracket |35
This cutter shaft |93 is rotatably mounted in the
vertically adjustable bearings |94 which are
slotted at their lower end as at |95 and secured
to bars |61 by means of bolt |96 for vertical ad
is a shaft |36 having a worm |31 ñxed thereon
which meshes with a worm gear |38 mounted for
rotation in brackets |39 and |40. Worm gear |38 60 justment on the cross bars |61.
The shaft |93 has fixedly secured thereto and
has a plurality of holes |4I into which one or
in spaced relation thereto a square bar |91 by
more pins |42 can be inserted for swinging lever
means of screws |98 and spacer washers |99
|28 on its pivot |29 when the worm gear |38
holding the bar |91 in spaced relation to the
moves to a position to where a pin |42 will engage
the lever |28. The shafi-l |36 has a V-pulley |43 65 shaft |93. The bar |91has adjustably mounted
therein short rods 200 which have one end press
ñxed thereon and a beltI |44 extends from pulley
ing against a flat portion 20| on shaft |93 and
|43 to pulley || 1. A belt |45 also extends from
are held in adjusted position by means of a
pulley ||6 to a pulley |46 ñxedly mounted on
set screw 203 and the outer end of each of the
main drive shaft 25. Main drive shaft 25 has a
hand wheel |41 fixed thereon so that the machine 70 short shafts or bars 200 has a vertically disposed
slot 204 therein in which a leaf spring like cut
can be turned by Ahand when desired for its few
ter blade such as a piece of hack saw blade 205
strokes and adjustment purposes, and the like.
is adapted to be adjustably secured by means of
The above-described arrangement permits the
a set screw 206 threadably mounted in the end
cloth to be moved back and forth laterally to
produce sinuous rows of tufts according to any 75 of each of the short bars or rods 200 and en
gagîng the edge of the cutter blade 205 to hold
it in adjusted position. 'I‘he upper end of the
cutterblade 205 is» beveled into a cutting edge
means of arm |81, link |89, and arm |92, oscillates
cutter shaft |93., 1
as at 201 and the upper side surface ofthe cut
ter blade is adapted to slidably engage the verti
cal shank portion of the looper |85 at all times
as it is flexed by the angular setting of the rods
' ,
shaft > |93 to oscillate in a counterclockwise man
ner to lower the cutting knives 205 to allow the
loops to move backwardly on the loopers. When
200 so as to slidably and resilientlyV engage the
side of the looper shank |85 at Iall times.
In Figure 7, the looper bill |85 is shown in ad
n .Í .
By referring to Figure 7, it is seen that when
shaft |65 oscjllates in a counterclockwise manner
to- move the loopers |85 forwardly, this causes
vanced position passing between the yarn and
the needles have reached their uppermost posi
tion, the shaft |65 oscillates in aclockwise man
ner and shaft |93 operates in a clockwise manner
to raise Vthe knives 205 upwardly to cut all but
the needle-and in such lposition due to >the co
the ñrst one or two loops onthe looper.
action between ythe arms |87 and |92 and links
|89, ythe cutting upper end or cutting edge of
The eccentric '|3 on shaft 25 oscillates arm 68,
the blade 205 is in lowered position to allow the 15 which, by means of overriding clutch 66 gives a
loops to move backwardlyl onto the looper bill;l
step-by-step movement to the feed roll 82 to ad-.
whereas, as the looper moves .backwardly, the
cutter 205 moves upwardly to the position shown
in Figures 8 and 20 to cut the rearwardly dis
posed loops on the looper bill but leaving one or 20
Vance the fabric while the needles are in raised
two uncut loops on the looper bill so as to pre
means of lever |28 clutches pulley | I6 with clutch
portion |22 to drive shaft ||2 and wheel and gear
|09 oscillate the cloth carriage comprising rough
ened angle member 91 to thus move the cloth
vent the yarn from being withdrawn from the
fabric on account of the amoun-t of resistance
position. By means of belt |45, pulley |||ì> is
rotated which by means of belt |44 rotates shaft
|36 which rotates pattern wheel |38 which by
offered to the loops by being in the fabric. Upon
rearward movement of the looper bill, the down 25 back and forth laterally to form sinuous rows of
tufts in the fabric.
wardly projecting lip |86 retains the uncut loops
In the drawings and specification, there has
on the looper bill and upon each forward move
been set forth a preferred embodiment of the
invention, and although speciñc terms are em
moved rearwardly by the oncoming and newly 30. ployed, they are used in a generic and descriptive
formed loops to a position where they will be
sense only, and not for purposes of limitation,
engaged by the cutting edge of the cutter blade
the scope of the invention being de'ñned in the
ment of the looper bill to form a, new loop, the
already formed loops on the looper bill are
to sever `the rearmost loops on the looper bill.
Although in several of the views, the presser
I claim:
In a, tufting machine having a plurality of
bar 52 is shown elevated from the fabric for` the 35
needles for penetrating a fabric and having a
sake of clearness, it is to be understood that this
looper associated with each needle, means for
presser bar 52 in operation has its lower surface
operating all of the loopers in unison to engage
in rather close proximity tov the upper surface
of the fabric.
In Figure 6, there is shown a rod 2|9 which
extends between the front posts lll and I2 for
guiding the yarn on its way from the tension de
vices 3l to the needle ‘bar 44. This rod is omitted
in many of the other views for sake of clearness.
The eccentric 'i3 is so positioned on the shaft
a loop when a needle penetrates below the fabric
being passed through the machine, a cutter asso
ciated with each looper, and separately mounted
therefrom, for engaging the looper at all times
and for severing some of the loops on the looper
as the looper swings rearwardly when the needles
,l rise upwardly, a feed roll for pulling the fabric
through the machine, means driven by thema
chine for driving the feed roll in timed relation
25 that downward movement of lever 88 will occur
to drive the take up roll 52 while the needles are
to the reciprocation of the needles, a work sup
moving upwardly out of the fabric and descend
port table for supporting the fabric in front of
ing towards the fabric,’so that a newportion of
fabric will be presented for the succeeding loop 60 the needles, means for moving the work support
~ table laterally back and forth relative to the
to be formed.
needles to thereby form sinuous lines of tufts on
Method of operation
the fabric by changing the position of the fabric
as it advances to the needles, Yand pattern means
Power is delivered from electric motor 30 to
the main shaft 25, which by reason of eccentric 65 for controlling movement of the work support
table including a pattern wheel having pins there
means, causes vertical reciprocation of the needle
on, and a lever engageable by the pins for render
bar 44 to cause the needles to penetrate the
fabric. Shaft |65 is oscillated byan eccentric
arrangement on driven shaft |53.
Shaft |55 by
ing active the means for moving the work support.
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