close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2406626

код для вставки
Aug- 27, 1946-
M. o'rToMANo'
YARN PRODUCING APPARATUS
F11-ed April 9, _ 1945
N
iwf
’2,406,626k
Patented Aug'. 27, 1946
2,406,626
l - UNIT En _STATES PATENT, ¿ol-‘FICE YARN PRODUCING APPARATUS'
Mario Ottomano, Union City, ¿Ni J., assignor to
American Safety Razor Corporation,rv Brooklyn,
N. Y., a corporation of -Virgi'nia
_v
\
Application April 9, 1943, Serial No. 482,383
,
o
1
S Claims.
(Cl. 19a-12x97);V _
2
'
‘
s
„
formed thereby will ‘be comprised of continuous
~ My present invention relates generally to the
reduction of filaments of extended or continuous
length to short staple lengths, and more par
ticularly to a manner of producing yarn where
in a group of continuous ’filaments arranged in
parallelism are reduced to staple lengths with
, faller bars',` and (c) these cutting edges be of
out disturbing that parallelism.
Synthetiçally produced filaments are formed
relatively narrow length, and (d) be so dis
tributed across the width and length ofthe gill
by eXtruding into fixing baths and the like a
.box so thatl the reduction will be effected with- ‘
filaments and (b) cutting edges be so associated
with the faller bars to reduce the continuous
ñlamenlts to short staple lengths incident to and
without effecting the normally functioning of the
viscous mass through the small openings or 10 out destroying the continuity of the web.
spinnerettes in the form of ñlaments of con
The general object of my invention is an im
tinuous length which are then disposed of by
proved arrangement for associating _cutting edges
being wound on bobbins. A number of the ñl
aments are then brought together to form a
thick rope-like length (generally .termed a sliver)
comprised of a large group of ñlaments of con
with the faller bars ofthe gill box to effect this
reduction.
A further general object of my invention is a
distribution of cutting edges whereby the cutting
tinuous length.> In the general practice this
sliver is subjected to a guillotining operation
which chops the slivers into short lengths to
operation is performed so as to effect to a mini
mum degree the integrity and continuity of the
form a conglomerate mass of short staple lengths
which are thereafter and by a suitable apparatus
web.
~
`
reconstituted into a sliver of extended or con
It is a further object of my invention that
the cutting edge be presented for a cutting oper
ation of maximum effectiveness.
tinuous length however now constituted of short
- Another object off my invention is an improved
staples arranged parallel and multiplied in cross
arrangementfor associating a blade holder with
section toV give the desired thickness (e. gfof 25 a f aller bar.
`
~
theorder of 1”) and multiplied lengthwise to
A further object of my invention is an im
proved arrangement for associating a blade with
a holder whereby the .blade can Ibe replaced
ber of these reconstituted slivers are then sub
jected simultaneously to treatment in an ap
quickly and without requiring skill or special
paratus termed a gill box wherein the slivers 30 tools.
are united into a relatively widev web which is
For the attainment of these objects and such
other objects as may hereinafter appear or be
attenuated, combed and then compacted into
pointed out I have illustrated an embodiment
sliver form. The compacted sliver is then treat
ed by an apparatus wherein it is. combed and
of my invention in the drawing, wherein:
then subjected to a further gilling operation in 35 Figure l illustrates a blade and holder in ac- i
what is termed an “intermediate” gill lbox where
cordance with, ymy invention in position on a
in a number of the compacted slivers are united
faller bar;
Figure 2 is» a top plan view of Figure l;
into a web which is combed, attenuated and
compacted as in the preliminary gill box to again
Figure 3 is a fragmentary top plan View of
reconstitute a sliver. These gilling operations 40 Figure l on an enlarged scale;
may be repeated as often as desired or required.
Figure 4 is a section on line 4_4 of Figure 1;
For-purposes of convenience of reference the
Figure äis a perspective of the blade holder;
term “sliver” will be applied to the yextended »
Figure 6 is a perspective of the blade; and
Figure '7 shows one manner of` distribution of
untwisted length comprised of a plurality of con
tinuous or extended filaments and the expres 45 the blades among the faller bars.
Beforeproceeding to describe my invention, I
sion “reconstituted slivers” will be applied to the
give an extended or continuous length.
A num
will premise that gill boxes are at present gen
erally characterized as follows: they function to
It has been suggested that the process now
attenuate the slivers reconstituted from the
employed for Vproducing yarn for synthetically 50 short staple lengths into'which the continluous
formed ñlaments could be simplified and the ap
-lilaments are guillotined (inV a typical practice
untwisted extended lengths comprised of short
staple lengths.
>
paratus required materially reduced if (a) a plu
rality of slivers Vcomprised of continuous> ñla
the short staples are of va length of the order of
4" to 6”); they are provided at one end with
a set of feed rollers between which a number
ments arranged in parallelism were` fedA simul
taneously, directed to a gill- box soV that the web 55 0f slìvers are fed simultaneously'to be formed
2,406,626
3
thereby into a relatively wide web and at the
other end with a set of delivery rollers spaced
a distance from the feed rollers which may `be
of the order of 12"; both sets of rollers are posi
tively driven but at different peripheral velocities
and in the practice I have in mind the difference
in the peripheral velocities is of' the order of
4
faller bar mechanism wherein a second set of
' faller bars substantially a duplicate of that al
ready described, operates above the plane between
the rollers, the faller bars thereof being moved
as described above, and also in timed relation to
the movement of the first mentioned set. the
needles of both sets of faller bars being projected
through the web in timed relation; a third type
differs from the first type described in that each
The length. of the web engaged between the two
sets of rollers at any movement, will therefore, 10 faller bar is provided with two parallel rows of
spaced apart needles across the length of the
also be of the order of 12" whereas the length of
`faller bar; a fourth type is like the third type
the short staples of which it is comprised, will be
just described, except that the double row of
of the order of 4” to 6". The short staples which
needles are interrupted for a substantial distance
comprise the sliver length engaged between the
t their middle toprovide a relatively wide space
two sets of rollers, will therefore group themselves
to provide two spaced apart sets of double rows
as follows: one group of these short staples will be
of needles and in this type of device the slivers
gripped and controlled by feeding rollers; a sec
are fed to the feeding rollers so as to form two
ond group will be gripped and controlled by the
webs, one to be operated upon by one set of nee
delivery rollers; and the remaining short lengths
will form a third group which are free'of both 20 dles and the other by the other set of needles.
I have chosen toV disclose my invention as em
sets'of rollers. Because of the accelerated periph
bodied in a gill box employing faller bars of the
eral velocity of the delivery rollers the second
aforementioned fourth type which I will now
mentioned group of short staple lengths will be
proceed to describe by reference to Figures l and
advanced atan accelerated speed relatively to
those of the ñrst mentioned group and the short 25 2 >where the faller bar is shown as comprised of
a base bar 25 from which projects upwardly the
staples which comprise the third mentioned group
Vneedles 26 as will be more fully stated shortly,
Will respond and _more or less casually to the con
The bar 25 defined by side walls 30 and 3|, end
trol of factors such as adhesion imposed upon
walls 32 and a bottom surface 33 and a top sur
them by the movements of the'other two groups
face 29, all dimensioned, contoured and related
and by other gill box mechanism'to be referred
precisely as are the corresponding parts of the
to later. This action attenuates the web.
conventional faller bar to which my arrangement
l Gill boxes are further characterized conven~
forms an attachment. This faller bar 25 for ex
tionally by a mechanism positioned between the
ample is provided with the conventional inclined
feed and delivery rollers and generally referred to
surfaces 34 adjacent its opposite end walls 32 and
as the faller bar mechanism and comprised of a
with the conventional guiding grooves 35 whereby
group or set of faller bars, each constituted of `a
the movement of the faller bars is effected by the
bar positioned parallel to the rollers and provided
five t0 one.
Y
,
-»
with one or more rows of pointed needles across
its length. The Width of the row Vof needles should
conventional mechanism in a conventional man
ner. The significance of this is that this faller
be at least equal to that of the web formed from y40 bar is entirely conventional also as to those char
acteristics whereby it may be rnoved> in a conven
the sliver or slivers as they are passed through
tional manner and in conventional ltimed and
the feeding rollers.
Y Y
' 4
spaced relation to all the other faller bars and
, `These faller bars travel between the set of feed
is as if it were conventional in all other respects.
ing rollers and the set of delivery rollers in a
Projecting upwardly from the upper surface 29
path that can best be described as an extremely
of bar 25 are four rows of pointed needles 40, 4|,
nat oval whose long dimension is in the direction
42,` and 43. The row 40 is adjacent and parallel
of the feed of the web and Whose short dimension
to side Wall 3! and terminates a substantial dis'
is approximately vertical. The faller bars in a
tance short of the middle of the bar. The row
typical apparatus travel in their elevated position
4I is adjacent and parallel to side wall 30 and
from a point adjacent the feed rollers to a point
terminates about the same distance short of the
adjacent the delivery rollers Where they are
center and its needles being shown as staggered
dropped in succession by mechanism (not shown)
relatively to and longer than needles 4 l. r»I‘he two
to a lower level and their direction of movement
parallel rows of needles 42 and 43 to the other
reversed until they again arrive in the vicinity
side of the faller bar also terminate about the
of the feeding rollers where they are suddenly
same distance short of the center as do the par
projected upwardly one after another into their
allel rows 40 and 4I and are related t0 each other
starting position in the upper level. This'com
and to the side walls 3D and 3l the same way as
prises a cycle of travel of each faller bar along
are the parallel rows 40 and 4l. Expressed dif
a path which has been referred to as a ñat oval.
This path is located generally below the plane (if) ferently, the bar 25 is provided with two spaced
apart sets of parallel rows of needles.
through the peripheral lines of contact of the two
In the conventional use of this type of faller
sets of rollers. This cycle is repeated continuously
bar, a number of slivers are fed along the width
for the gilling operation. The faller bars follow
each other in this path in timed relation and in .. » of the group of needles 40 and 4| and the second
group of slivers are fed to the gill box along the
As each faller bar is pro-V
uniform v manner.
« a
jected into the upper level its needles are caused
to penetrate the web formed from the slivers
by the feeding rollers, so that as the faller bar
advances toward the delivery rollers, the needles
comb the short staple lengths into parallelism.
What I have just described is one type of faller
bar mechanism of a typical gill box,
There are
width of the needles 42 and 43 so that two webs
are formed and treated simultaneously in a single
gill boX, these webs being spaced apart for the
space between the two groups of needles.
I will now explain my invention as applied to
the two parallel rows of needles 42 and 43 at the
right in Figures 1 and 2, it being understood that
_other types which vary somewhat from that
the description for this half applies equally as
which has just beenvdescribed.
well to the other half and which is therefore
For example a .
second type is that known as, the intersection.l
deemed unnecessary to illustrate.
'
'2,406,626
c
s
6
5
My arrangementv for associating cutting edges
with such. a faller bar comprises a holder 50
shown in Figure 5> anda blade 5| to be engaged
thereby for predetermined relation to a group of
c
wall 5.5 or the holder'an’d the group of needles. en
compassed thereby.
A preferred manner of assembling the parts is
to engage the holder over the selected group of
needles in the manner already set forth so that
llîhe holder 50 is comprised in horizontal cross
the wall V6| is engaged in a depression 12 and
ñnger 80 is engaged in slot 10. This locates the
section of the end or main wall 55, the side walls
56 and the inwardly extending ñanges 51 which
holder on the bar and also locks it against move
terminate a substantial distance short of each
ment in any direction. The blade is now' forced
other. The holder is illustrated as open at its 10 into itsr position of Figure 3 in between the group
of needles encompassed by the holder anda wall
top and bottom so that it' can be passed down
55V thereof and in this positioning, ythe blade will
wardly over a group of needles, the spacing of f
needles.
f
its walls andflanges being such with relation
shipto the thickness and spacing and the tapered
-formation of the needles that as the holder is
moved downwardly over> a selected group of
act as a wedge to prevent such relative move
ments of the parts as might result from manu
facturing variations or deteriorations through
use.
‘
My invention further contrnplates «that means
be provided to prevent the blade from moving
ment will be eifected until Ithe holder reaches
its ñnal position of Figure 4 wherein its bottom
upwardly relatively to the holder. The arrange
seats upon the top surface 29 ofthe bar 25. 20 ment I provide therefor is shown in Figures 4, 5
and 6 and comprises a finger 86 formed by cut
While the holder 50 maybe made of any desired
needles a gradually increasing frictional engage
or preferred material, my objective contemplates
that its construction or the material of which it
is made be such that the engagement with the
needles be a resilient one.
This manner of en
gagement will maintain the holder against move
ment in the plane of .the bar.
I will now de
scribe my arrangement for preventing upward
movement of the holder. It comprises finger 60
extending inwardly from the wall 6| supported
from the holder 50 by ñange 62. In the >illus
trated embodiment the parts 60, 6| and 62 are
shown as made as a separate part and as secured
to the outer face of the wall 55 by ilangeßä. It
can be made integral` with holder 5|! in any de
ting an area of wall 55 along three sides and
`then bending inwardly that area as shown in
Figure 4. The blade in turn is provided with- an
opening 8| so located .and dimensioned that when
the blade is forced down into the holder to its
limit which is when it engages the top surface
29 of the base part, the hole 8| in the blade will
be in registration with the lower end of the finger
80. and the lowermost wall portion of hole 8| will
be positioned below and engaged by the lower
most edge of the ñnger 80 to lock the blade
against upward movement in its holder. 'I'his of
course requires that there be a relative yield
between linger 80 and blade 5|. This yield will
be provided by one or more of the following:
sired manner if preferred. It will be observed
that ñange 62 is substantially in the plane of the
the resiliency of iinger 80; the resiliency of
bottom of the holder 50.
holder'50; the flexibility and resiliency of blade
5|. In Figure 4 the linger 6|) is bent inward only
The aforementioned faller bar which as
already stated, is entirely conventional as thus 40 a sufficient distance so as to provide an engage
ment between the wall defining blade slot 8| and
far described, is modified .to the extent now to
the lowermost edge of finger 80 without however
be indicated for purposes of my invention. A
horizontally extending slot 'l0 extends inwardly
permitting the blade to work its wayin the space
from the wall 3|. This slot 'l0 is located to reg
between the free lower end of finger 80 land the
ister with ringer 6B of the holder when the latter
wall 55 of the holder.
Upon reference to Figure 6 it will be observed
is engaged around a selected group of needles
that the cutting edgeV 85 is inclined tothe hori
and fully seated on base 25. It will be observed
zontal at a substantial angle which in the draw
that this slot is shown in Figure 1 as extending
ing is illustrated as approximating 30°. I have
for the full length of the rows of needles 42, 43.
found this‘o'f advantage because it provides the
In addition the side wall 3| is shown in Figure
pointed end 86 which first engages the iilarnents
1 as milled down to provide the two spaced apart
and cleaves through the assembled mass to cause
depressions '|2 whose purpose will shortly be ex
those filaments to the right of the point in ven
plained. The needles about'which a holder- en
gagement with the inclined cutting edge for a
gages comprise that group in vertical registra
shearing cut across the full length of the in
tion with a. milled area 12 and in such engage
clined cutting edge as that edge moves upwardly.
ment wall 6I depending from holder 50 will be
It presents the further advantage that it sub
countersunk into a depression 'l2 and finger 60
stantially increases the length of the cutting edge
will be received in slot 10. lThe depth of the
without increasing the width of the blade and
milling is such that the outer surface of the wall
6|- will be on the level with and in plane of the (ii) thus lengthens the life of the former.
The upper edge of the holder which can be de
remaining portion of the outer wall 3| of the
scribed as an incomplete ellipse is cut at sub
basebar 25 and the depth of slot T0 is such thatV
stantially the same angle as is the edge of the
finger 60 will be fully engaged therein to thus
blade to provide ample and ñrm support therefor.
lock the holder against vertical movement. It
To minimize the extent to which this upper
will here be pointed out that the elements 60,
. edge of the'holder 50 might present projecting
6| and 62 comprise between them a spring linger
edges or surfaces or areas to the filaments, I
which will yield suiiiciently to permit engage
have rounded off the end wall at the right in
ment and disengagementrof the finger 60 from
1Figure 5 so that it presents. a curved surface and
within the slot and of wall 6| from engagement
have cut oif the sharp upper corner at the left
in depression 1.2.
in that figure which otherwise would be pre
The blade 5| is of a~width so as to be snugly
‘ sented as shown at 6l, 'and then rounding off
received within the holder 50 and engaged be
the corner as shown at 68.
tween its side walls 5B and by reference> tov Fig
In Figures 1 and 2 I have shown two cuttingV
ures 2` and 3 it will be observed that the blade 5|
in its assembled relation is engaged between'the ' edges associated with the parallel rows of nee
2,406,626
dles 42 and 43 in the right half of the faller _bar.
Their location and number is entirely exemplary.
It will be understood that blades can also be asso
ciatedwith the two parallel groups of needles 40
and 4I in the' left half of the faller bar of Fig
ure 1 as will be explained by reference to the
pattern shown in Figure 7.
It has been stated that the gill box comprises
a plurality of faller bars of which one is shown
in Figure 1 and that these faller bars follow l0
bars> during a complete cycle represents-as a
repeat three times of the same distribution of cuts
and cutting edges so that the narrow length of
the web engaged between the rollers represented
by one of these letters at the top in Figure '7 is
cut three times during a complete cycle so as to
reduce the continuous filaments in short staples
of a length of approximately 4".
If now the cuts effected in any one of the afore
mentioned groups of adjacent faller bars which
each other in a cycle of movement along an up
represent a pattern of cuts are projected on a
per level from the feed roller t0 the delivery
single horizontal line, it will give the resultant
roller and then are dropped to a lower level along
which their movement is reversed until they have
reached a position of adjacency to the feed roll
of a cut for the full width of the web without
ers where they are again projected upwardly to
ure 'l is repeated as the web is fed through the
complete a cycle. As .each faller bar has com
gill bOX.
Since the cutting operation is performed upon
pleted its reverse movementl and isv projcted up
substantial overlap and without destroying the
continuity of the web. The cycle shown in Fig
the web at a point v,adjacent the feeding rollers
wardly into the upper level, the needles are pro- ’
jected through the web for its full thickness so 20 where all the filaments are continuous and under
the control of those rollers and are being fed at
that as the faller bars advance in the upper level
the peripheral velocity of the feed rollers, the
its needles will comb the web. When a faller
pattern of Figure 7 correctly presents the cycle of
bar provided with cutting edges as is shown in
cutting even though the short staple lengths may
Figure 1, is projected upwardly, a cutting edge
will be caused to engage and cut the group of 25 thereafter be subject to relative longitudinal dis
placement as they are fed at varying speeds.~
adjacent ñlaments which are in vertical regis
The pattern shown in Figure 'l is intended to
tration therewi-th and as will be observed from
exemplify one manner of distribution of the cut
Figure 1, this group is contained within and com
ting edges and one manner of association of the
prises a relatively narrow width of the web. In
the disclosure of Figure 1, the web being treated 30 cutting edges with the right half of the faller
bars.
’ .
by the right half of the faller bar, will cut upon
It will be understood that the distribution of
such> upward projection of that faller bar, for
the cutters on the left half can duplicate that
the two narrow spaced apart widths as shown
shown in Figure 7 for the right half in which
in that figure.
event the patterns will duplicate each other. If
The pattern of Figure '7 is intended to repre
desired, the pattern of cuts for the left half of
sent the cutting action effected by the vertical
‘the faller bars can be different from that em
projection of all the faller bars through a com
ployed for the right half and the objects of my
plete cycle of movement thereof upon that length
invention attained. For example, the cutters in
of the web which is engaged at any moment be
tween the feeding roller and the delivery roll 40 Figure l are shown as inclined downwardly to
e ward the right. They can be changed around
ers and which length it has already been stated
by being inclined downwardly toward the left,
may be of the order of approximately 12". The
either for some or all of the cutters on the right
pattern width shown in Figure 3 is intended to
and also for the cutters on the left.
.
represent the width of the web .being treated by
I have shown in the disclosed embodiment the
the right half of the faller bars and its length as
cutting edge inclining downwardly toward the
measured vertically in thatl ñgure is intended to
right. It will be understood that the inclination
represent the length of that web engaged be
can be reversed either for all the cutting edges
tween the two sets of rollers. The numbers at
or for any variation that'may be desired.
the left represent the cuts effected upon the web
Having thus described my invention and illus
section successively during a complete cycle of
>trated its use, what I claim as new and desire to
operation by twenty-four faller bars which are
secure by Letters Patent, is:
assumed to be comprised in the faller bar mecha
l. In combination with a faller bar defined by
parallel side walls and an upper surface from
Ã- For convenience of reference the web section
of Figure '7 is shown as divided into ten sections 55 which project a row of needles and means for
securing a blade in engagement with a group of
across its width, each sectionbeing of a width
adjacent needles of said row for effecting a cut
corresponding to the width of the cut effected
ting action upon the upper projection of the faller
by a cutting edge. The ten sections are lettered
bar and means for locking said blade against
for convenience of identification. This pattern
vertical as Well as lateral movement relatively
shows thatI faller bar I carries three cutting edges
60
in its right half and therefore effects its three
to said needles, said means comprising a blade
holder and means for locking the blade to the
cuts; faller bar 2 carries no cutting edges; faller
holder and means for locking the holder to the
bar 3 carries two cutting edges; faller bar 4 carries
no cutting edge; bar 5 carries two cutting edges;
faller bar.
2. A gill box faller bar comprised of a base bar
bar 6 carries none; bar 1_ carries three; bar 8
and needles projecting upwardly therefrom, said
carries none, etc. The cuts effected by the cut
base bar being provided with a slot opening out
ting edges 85` are shown in this pattern as dis
wardly through a side wall thereof and extended
tributed longitudinally and laterally of the web in
longitudinally of the base bar to cooperate with
this manner. It will be observed that the dis
a linger carried by a blade holder> supported above
tribution of the cuts and therefore of the cut
the base bar for retaining said blade holder
ting edges for the faller bars I to 8 inclusive is
against upward movement and a blade holder
repeated in the group of faller bars-of 9 to I6 '
having means for securing it to the faller bar
inclusive and again repeated for the third group
comprising a member adapted to engage in said
of faller bars l1 to 24 inclusive. In other words,
the pattern of cutting action of all of the faller 75
nism.
Y
slot.
I
.
2,406,626
10
9
3. A gill box faller bar comprised of a base bar
dles for detachably securing a blade to such faller
whose thickness is defined by longitudinally ex
tended parallel side walls, said base bar being
bar with its cutting edge in predetermined rela
tion to its needles, said attachment being made
Areduced in thickness for a limited distance along
its length beginning at its top and extending
of a sheet material and comprising a wall of a
width sufficient to span a group of adjacent nee
dles and of a height less than the length of the
downwardly therefrom to provide a depression in
needles and iianges bent from the opposite side
one of the side walls, and a blade holder posi
tioned above the base bar and provided with a
edges of said wall to extend inwardly toward each
retaining finger received in said depression so as
other and parallel with and normally spaced from
to be countersunk in said base bar and therefore 10 said wall for approximately the diameter of the
present no protuberance extending beyond said
needles, said wall and flanges defining an expan
sible unobstructed channel of uniform cross-sec
side wall.
4. A gill box faller bar comprised of a base bar
tion and entirely open at the top and bottom,
whose thickness is defined by longitudinally ex
whereby the attachment can be engaged over a
tended parallel side walls, one of said side walls 15 group of needles through its open bottom with
being milled away from the top for a distance
the group of needles encompassed by the wall
downwardly therefrom and for a limited distance
and flanges, with the pointed ends of the needles
along its length to provide a depression in said
projecting through and beyond the open top of
side wall, said side wall being provided with a
said attachment, whereby a flat blade entered be
slot which opens outwardly therethrough and 20 tween said wall and the group of needles will be
extends longitudinally of said base bar, said slot '
crossing said milled area and a blade holder and
means for securing it to the faller bar comprising
an inwardly directed finger engaged in said slotV y
engaged thereby and frictionally held therebe
tween with its cutting edge located above the top
of the attachment and below the pointed end of
the needles and means projecting from said wall
to lock the holder against upward movement, and 25 for engagingthe faller bar base to lock the at
received in said depression in countersunk rela
tachment against vertical movement along the
tion to said side Wall.
5. In combination, a holder for securing a blade
8. A separable attachment to a gill box faller
needles.
'
,
to the faller bar of a gill box employed in the
bar comprised conventionally of a base and nee
production of yarn from filaments, said holder 30 dles for detachably securing a blade to such faller
being channel-like in horizontal cross section and
bar with its cutting edge in predetermined rela
open at the top and bottom whereby it can be
tion to its needles, said attachment being made
moved downwardly over a. group of adjacent faller
of a sheet material and comprising a wall'of a
Ybar needles to engage thereabout with the bot
width sufiicient to span a group of adjacent nee
tom of the holder seated on the top of the base 35 dles and of a'height less than the length of the
bar of the faller bar, said holder having an in
wardly directed ñnger depending therefrom and
needles and flanges bent from the opposite side
edges of said wall to extend inwardly toward each
other and parallel with and normally spaced from
to receive said finger and lock the holder against
said wall for approximately the diameter of the
upward movement.
‘
40 needles, said wall and flanges defining an ex
a faller bar provided with a slot in its side Wall
6. In combination with a faller bar of a gill ~
box employed in the production of yarn from iila
ments a blade holder, said holder being channel
like in horizontal cross section and open at the
top and bottom whereby it can be moved down 45
wardly over a group of adjacent faller bar nee
dles to engage thereabout with the bottom of the
pansible unobstructed channel of uniform cross
section and entirely open at the top and bottom,
whereby the attachment can be engaged over a
group of needles through its open bottom with
the group of needles encompassed by the wall
and flanges, with the pointed ends of the needles
projecting through and beyond the open top of Y
holder seated on the top of the base bar of the
said attachment so that a flat blade can be
faller bar, said holder having a depending mem
entered between said wall and the group of nee
ber and a linger extending inwardly from its 50 dles engaged thereby and frictionally held there
lower edge and a faller ybar having one side wall
between with its cutting edge located above the
milled down to provide a depression in which said
top of the attachment and below the pointed end
member is received and a slot longitudinally of
of the needles and means depending from the
said milled area in which the ñnger can engage
bottom edge of the wall for engaging the faller`
to lock the holder against upward movement. ' 55 bar base to hold the attachment against vertical
7. `A separable attachmentvto a gill box faller
movement relatively to the faller bar.
'
bar comprised conventionally of a base and nee
MARIO OTTOMANO.
Документ
Категория
Без категории
Просмотров
0
Размер файла
952 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа