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Патент USA US2116780

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May 10, 1938.
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Victor Chartener, Monessen, Pa., assignm- to
Pittsburgh Steel Company, Pittsburgh, Pa., a
corporation of Pennsylvaniaf
AApplication February 13, 1935, Serial No. 6,303 ,
My invention relates to a machine and a meth
of Fig. 17; Fig. 19 is a view taken on the line
od of making fabrics, and is hereinafter de
XIX-XIX of Fig. 1'7; Fig. 20 is a. view taken at
right angles tb the view of Fig. 19; Figs. 21 and
22 are views similar to Figs. 19 and 20, respec
tively, but showing parts, on an enlarged scale,
scribed as employedin the making of wire fab
rios, but it will be understood _that various fea
tures of _the invention can be remployed in the
making of other types of fabric.
As hereinafter described, the invention 'is
shown as employed in »the making of woven wire
bands for fences' or highway guardsof the type
>Ashown in. Patent No. V1,970,954, issued >August 21,
1934, to Walter S. Edge.
' and in their actuated positions; Fig. 23 is a view
taken on the line XXIII-m of Fig. 3, 'on
an enlarged scale; Fig. 24 is a view taken on the
line XXIV-XXIV-óf Fig. 23; Fig. 25 is a frag
mentary view showing a portion of the fabric 10'
`and the manner in which the _ends of the stay
One object of my invention' is to provide a
wires are bent: Fig. 26 is a view taken on the
machine and a method whereby a minimum _line XXVI-HV1 of Fig. 2; Fig. 27 is an end v
number of machine parts and movements are view of a portion of the take-oi! mechanism of
required in the assembling of the strand and . Fig. `2; Fig. 28 is a cross-sectional view similar 15
stay members or wires into the fabric structure. to Fig. 12,' but showing a. modification thereof;
Another object Yof my invention is to provide Fig. 29 is a’vertical sectional view showing sub
an improved means for feeding crimped stays stantially a complete `cross section `of a modi
il'cation of the structure of Fig. 16; Fig. 30 isinto assembled relation with the strands.
A further object of my invention is to pro-_ an relevational view showing a modification of 20
vide means whereby the .deñectlion' of the strands the structure of Fig. 22, and Fig. 31 is a section
tof permit insertion of the lstay wires mayÁ be
of such limited degree as to avoid permanent
-bends in the strand wires.
i al elevational view showing a modlñcation of the `
structure of Fig. 23.
-As shown more clearly in Figs. 1, 2 and 3, there _
Another object of my invention is to provide is provided a feeding station A, a stay wire trim 25
an improved means for bending the ends of the ming station B, a iirst bending station C, a sec
stay wires around the strands4 at the edges of the ` ond bending station D, a third bending station E,
a take-olf station F, and a reeling station G.
fabric. 4
Another- object of my invention is to provide ' The strandwires 'I0 and stay wires Il are fed
30 asimple and relatively inexpensive manner of into- the machine as shown in Fig. 1„the stay 30
making a plurality _of narrow bands on a single wires being Afed 'past a crimping station H, and
then depositedbetween the strand wires _l 0 which
are _deilected at the station A, to permit the
vide a simple and cheap method and mechanism insertion of the stay Awires beneath certain
whereby fabrics of the character referred to may strandsand above other strands, after which 35
be more rapidly formed thanhas been possible the stay wires are cut. The stay wires are cut
a little longer than thelength vrequired to ex
with various devices oi.’` the prior art.
tend across the strands, so that in case the stays
Apparatus for practising my invention is il
lustrated in the accompanying drawings, where- > are not quite accurately positioned in-directionslio in Figure 1 is a plan view of av _fabric-#making transversely of the fabric, the allowance in extrav 40
'I ,'machine; Figs. 2 and 3 are longitudinal _sectional` length will permitV thetrimming at the station
- views ofthe structure-of Fig. l, onV an enlarged - B, whereupon the extremities- of these stays
scale; Fig. 4'is'an end view at the feeding end will projectexactly the'proper distance beyond '
' Still another object of my invention is to proi
o_f the machine; Fig. 5j is a/view taken on the line
. the edges of the fabric.
At vthe station C, the protruding ends of the 45
Y ratus -shown in Fig. 5; Fig. 'I is an enlarged view ~stay wires are bent at right angles to the vplane
,'oi," the crimping'zrolls for the st_ay wires; Fig. 8 _of the fabric; at station D, they are bent back
is a view taken on the- line'VIII--VIII of Fig. 3; ' ~upon the piane of the fabric, andl at station E,
45 V-V `oi' Fig. 4; Fig. 6 is a pian v'iew of the appa-A
Fig. 9 is an enlarged view taken'on the line _ the bent back ends are slightly flattened as
V50 IX-IX of Fig. 8; Fig. 10 is a perspective view of
one of the deflecting dies shown in Figs. 8V and
shown in Fig. 25. The me'sh is intermittently 50
advanced by the mechanism at station Fand is l
9; Fig. 11 is a view taken on the line XI-XI‘of taken _oif on a reel at station G, the reel being
Fig. 9;' Fig. 12 is a view taken ~on the line `driven and also exertingl a _pulling force on the
"XII-XII o_f Fig. 3; Fig. 13 is a view taken on the
>As shown more clearly in Figs. 1, 3 and 4,'the
v55 line XIII-XIII of Fig. 3; Fig. 14 is a view taken
‘ on the line XBL-XIV of Fig. 13; Fig. 15 is a view , strand wires I0 are fed in two groups from suit
,taken on the line4 XV-XV of Fig. 16; Fig. 1_6 ï able reelsl (not shown), one-half of the wires
passing over upper guide rollers I2, and the other
> is a view taken on the line XVI-_XVI of Fig. 15;
Fig. 1'1v is a view taken on the line XVII-XVII ' half over llower guide rolls I3, andpast a spread~
of Fig. 3; Fig. 18 is a side view of the structure
er roll I5, and between the teeth or'ñngers of a 60
comb I6 that maintains the Wires in proper
transversely-spaced relationship, as they enter
between the deñecting dies in interspersed rela
Deflector dies for the strands
The apparatus is mounted upon a suitable
stay wires II are drawn from suitable reels past
guide rollers 31 and straightening dies or rollers
38. The wires are drawn through the straight
ening dies by suitable crimping rollers which are
arranged in upper and lower pairs, each pair
operating upon one of the wires II. ' The upper
crimping dies 40 and 4I are of ring-like form, but
serrated on their peripheries as shown in Fig. 7,
and are secured by screws to driving gears 42 and
10 for operating a lower set of deñector dies and a - 43, respectively. The gear 42 is keyed to a ver 10
pair of cams 22 for operating an upper set of tical shaft 44, and has driving engagement with
deilector dies. Slide blocks 23 are mounted in the gear 43 that is loosely journalled on a hub 45
the frame for vertical movement and carry cam that is secured upon a bracket plate 46 by suit
' framework and is driven by a motor I8 operating
through speed reduction gears at I9 that drive a
shaft 28. The shaft 20 carries a pair of cams 2|
rollers 24 that engage the cam discs 2I, so as to
15 have positive up and down movements of the
slide blocks during rotation of the shaft.
At their upper ends.(Figs. 3, 8 and 9), the
blocks 23 carry a cross head 25 on which are
mounted lower deiiector dies 26 which are of the
form _shown in Fig. 10. The cross head 25 is suit'
ably guided by the machine frame for vertical
movements as shown more clearly in Fig. 3.
able screws.
It will be seen that as the shaft 44 is driven,
the gears 42 and 43, and the crimping dies car
ried thereby> will be rotated to- advance one of
the wires II, and produce crimps therein, as
shown more clearly in Figs. 6 and 7.
'I‘he other wire II is crimped by dies 41 and 48 20
which aremounted on gear members 49 and 50,
respectively, the gear member 49 being driven by
a shaft 5I, while the gear member 58. is loosely
The cams 22 engage cam rollers 21 that are
carried by slide blocks 28 onthe upper end of supported on a hub 52 that is secured to a bracket
25 which is mounted a cross head 29 that is slid- _ plate 53.
While the gear wheels 42 and 49 are, of course, .
ably supported for vertical movement in the
frame of the machine. The cross head 29 carries
deiiector dies 38 which are similar in shape .to the
dies 26, but which are in staggered relation
'I'he dies 26 and 30 are each arranged in front
and rear sets, as viewed in Fig. 9, they rear sets
being staggered relative to the Afront sets,»so that
a rear die 26 as shown in Fig. 9 will deflect a
strand wire upwardly, while the associated front
die 26 is deflecting an adjacent strand Wire up
wardly. During this movement of the dies 25,
the dies 36 will deflect the strand wires in oppo
site directions. -In other words, while one of the
40 dies 26 is deñecting a strand wire upwardly at a
co-axial with their respective shafts, the gear
wheel 43 and the crimping disc carried thereby
are offset relative to _the shaft 5I, and the gear
wheel 50 and crimping disc 48 are offset radially 30
of the shaft 44, so that the pass between the
crimping discs 48 and 4I and the pass between
the crimping discs 41 and 48 are offset in such
manner as to permit the crimped stays to be ad
vanced to the deflector dies with proper spacing. 35
The shafts 44 and 5I have bevelled gear driv
ing engagement with a shaft 55 that is intermit-_
tently rotated by a pawl 56 that is carried by a
rocker arm 51 which is loosely mounted on the
shaft 55. The pawl 56 engages the teeth of a 40
ratchet 58 that is keyed to the shaft 55, so that as
given point, a die 30 is deflecting an adjacent
’ the arm 51 is oscillated, the shaft 55 will be given
strand wire downwardly at that point.
intermittent rotative movements. The arm 56 is
The blocks 26 and 30 are cut away at 32 and 33, operated by a pull rod 59 that has connection
respectively, to permit sufficient deflection of the
45 strand wires, so that the stays may be fed be
tween the oppositely deflected portions of adja
cent strands.> 'I‘he blocks 26 and 38 are provided
with bosses 34 that engage the strand wires to de
flect the same, and are bevelled on their front
50 and rear edges to preventtoo abrupt bending of
the strandV wires and .to facilitate advancing
movement of the strands l0.
spaced apart to provide channel -ways or grooves
35 extending transversely of the machine, and
55 into which the stay wires I I are inserted.
After each operation of the deflector dies and
the feeding of stay wires-thereto, the strands are
with a crank arm 60 which is carried by a shaft
6I which is driven through gear wheels 62 from ~
the main. drive shaft 28.
As shown more clearly in Fig. 4, the crank pin
bearing by which the pull rod'59 is connected to_
the crank arm 60 is slidably supported in the 50
crank arm and adjustable therein by means of a
screw 63. Thus the eifective throw of the crank
connection can be varied, with consequent vari
ation in the distance which vthe pawl 56 will
periodically advance the ratchet wheel 58. By 55
this means, stay wires of various desired lengths
can be supplied.
_ From the crimping discs, the stay wires II are
advanced as hereinafter described, a distance
60 equal to Adouble the spacing between the stays,
» thus if the stays are spaced two inches apart,
advanced through guide tubes 64 and past a cut
ter 65 (Figs. 8 and 11) which is carried by the 60
the strands will be advanced four inches. The
provision of front and rear sets of defiector dies
constitutes an important feature of my invention,
65 since it provides for insertion of two stay wires
fed into the channels 35, While the deflector dies
are in the position shown in Fig. 9, the'cross
heads 25 and 29 are moved apart to separate the
dies, and during this movement, the knife 65 is' 65
cross head 25.
When the stay wires I I have been
' simultaneously, and thus doubles the l’rate at
carried down by the cross head°25 to cut the wires
which the strand wires may be advanced. Fur
thermore, it simplifies the feeding of the strand
wires since there need be no verticaltransposi
70 tion or shifting of paths of travel of the lower
II, and permitting advancing movement of the
formed fabric by mechanism to be hereinafter
group of strand wires relative to .the upper strand
wires at the entrance to theA machine.
Stay wire feeding: I
As shown more clearly :In Figs. 1 and 4s @0 '7,‘the
At the completion of an advancing movement 70A
of the fabric, the deñecting dies are brought to
gether to deflect the strands as shown inFig. 9,
and the cam discs 2I and 22 are soformed that
the defiecting dies will remain in that position
while the pawl and ratchet feed is being actuated 75
to advance the stays into the deñe'cting dies and A blocks 90 that lare located at diagonally oppo
between the strand wires.
site corners of the cross head, so that when one
'I'he stays are crimped in horizontal directions of the blocks 90 (Fig. '15) is bending an end of a „
stay wire ||a (Fig. 15) downwardly, »the other
block 90 will be "bending the opposite end of an
so that they in effect lie on- their sides as they -
5 are fed into the defiecting dies. The distance
which the strand wires |0 have to be deflected
adjacent stay wire IIb downwardly., Similarly,
the crosshead 8| is provided with bending blocks
vertically in order to receive the stays is theref
fore not substantially greater than the actual
9| arranged at diagonally opposite -corners of the
thickness of the stays. In this manner, I avoid
10'` the necessity of deflecting the strand wires such
distance that they will become permanently» bent
or deformed within the dies 26 and 30, as would
cross head, so that when one block 9| is bending
1 the end of the stay wire ||b upwardly, the >other
block 9| is'bending the oppositeend of the stay
wire Ila upwardly.
frequently be the case if the stay wires were fed . i
It will thus be seen that as the cross heads 00
in with their bends vertically disposed instead ofl and 0| move together, the bending blocks 90 and
15 horizontally. For example, with the stay wires 9| will bend thevends of stay wires- Ila and lib- 15
crimped to the extent shown, and if fed with
their bends vertically disposed, the strand wires
around the edge strand wires and into a position
would have to be deflected twice the distance
shown in the drawings, in order to permit inser
strands against deflection during the bending op'
lo tion of the stays.
at right angles to the plane of the wires.>In order' to maintain the edge or selvage' Y
erations, I provide on the cross head 6| an up
in the strand wires, especially if they be made of
end of the cross head, so that when the cross
spring steel as is the case, so that when the de
flecting dies are separated and the shear 65 has
i0 been' actuated to sever the stays, the tension of
the strand wires on the stays will automatically ,
cause the stays to turn 90°, so that their bends `
are perpendicular to the plane of the mesh.
The resiliency of the strands I0 causes the sets
$0» of stays -|| to be held against shifting longitudi
-‘ nally of the strands I0, While the mesh is being
advanced to the bending stations, since the
strands extend in sinuous paths, and 4partially
embrace the stays, with a gripping action.
„i '
Trimming mechanism
Referring now to Figs. 3 and 12, and with 'par
ticular reference to the trimming station B, which
is utilized for trimming excess lengths from the
x 40 ends of the stay wires ||, so that they will pro
ject uniform distances beyond the marginal
strand wires I0, I provide a pair of stationary
knives 10 mounted on a frame member 1|, and a
pair of movable knives 12 mounted on a cross
45 head 13. The cross head' 13 is reciprocated ver
l ~tically by push bars 14 that carry cam rollers 15
which engage cam discs 16 that are mounted on
a shaft 'I‘Lv The shaft 11 is driven through gears
10 and 19 that are secured to the shafts 20 and
11,'respectively. It will be understood that the
cam 16_is so arranged that the knives 12 will be
standing bifurcated supporting block 93 at each
There is considerable resilience or yieldability
head is raised, the blocks will straddle the edge
strands I0, at points between the stay wires, to
hold the edge strandsf‘against lateral deñection
during the bending of the stays. ,
On the cross head 00, I mount depending guide
pins 94 which when the crosshead descends are
moved along the- inner sides of the marginal
strand wires, and pins 95 which engage the outer 30
sides of the marginal strand wires, the lower ends
of these pins 94 and 95 being pointed so as to
properly position the'marginal strand wires at
the-bending station and serving to assist in pre
venting lateral deflection thereof during bending. 35
The guide pins' are of such length that they will
pass between> the strand wires before the .bending
blocks 90 and 9| engage the stays.
Second bending operation
Referring new to' Figs; 3 and 17 to 22,1 show
mechanism for performing the bending operation
>at station B, whereby the projecting ends of the
stays are bent from right angles back towards
the plane of the mesh to embrace the edge 45
strands thereof. Cross bars 91 are rigidly secured ~
to the framework of the machine and’serve as
bracing members, and also are provided with re
cesses 90 for the reception of stop4 or guide pins
99 that prevent lateral shifting of the mesh 50
strands, as in theY case of the pins 94, at the first
operated at the termination of each advancing _ bending station.
The -pins 99 are carried by a lower cross head `
-movement of theA mesh.
|00 which is supported _in the framework of the
First bending' operation
machine for vertical sliding movement, and- is 55
Referring new to Figs. 3, 13, 14, 15 end 16, and v
with particular reference to the first bending
operation on the .endsof thestay wires, I show
means for- bending the projecting ends of the
.60 -stay wires ‘at right angles to the plane of. the
>mesh. Upper and lower cross heads 00 and 0|,
_. cross head |00 is periodically raised and lowered.
- are slidably supported in the machine frame for '
The -cross head |00 is moved vertically in order
raised and lowered by means of a bar |0| at each l
end, the bars |0| carrying cam rollers |02 which
engage cam discs |03 that are secured to a shaft
|04. The shaft |04 >carries a gear wheel |05
which is driven by the gear wheel 01, so that the
vertical movements and are actuated by pairs of
.to periodically move the stop pins 99 into holding
rods l2 and I3. respectively, the rods 02 carrying position with` the fabric at the end of each ad
65 c_am -rollers 04 that engage with a cam disc 05
vancing movement, a third stop pin |06l being pro
. videdbetween the stop -pins 99.v
. The shaft Il is driven from the gear wheel 19,
>~A slide frame composed of cross bars |08 is
through a gear wheel 01 that is secured to the mounted in the upper framework of the machine
shaft I6. The rods 03 carry cam rollers 00 that for reciprocating movement transversely ofv the70 Vengage cam discs 09 which are secured to the framework, and carries an upper pair of bending 70
shaft 06. The cam discs 05 _and 09 are so ar
dies |09, and a lower pair of bending dies H0,
ranged that the cross head 60 is being moved -the dies of each pair being positioned diagonally
opposite to one another, so that the die |09, for
down,-while¿_the' cross head-8| ,is moving up
example, will bend an end of a stay wire back
_ which is mounted on a shaft 06.
The upper cross head '00 has a pair o_f bending
upon the plane of the fabric, while the diagonally 75
opposite die |09 will bend the end of van adjacent
able position during bending operations, a plate
stay wire back upon the plane of the fabric, and
|35 extends _across the frame of the machine and
is provided with openings through which the
bending dies |30 and |33 and supporting blocks
similarly with respect to the'dies ||0.
Supporting blocks ||| are provided opposite
the bending dies |09 and supporting blocks ||2
are provided opposite the bending dies ||0, so
that during a bending operation by a. die |09,
one of the blocks | || will be 1n position below
riesa bolt |36 adjacent to each edge of the fabric,
the bolts in turn carrying a plate |31. Springs
rocking lever || 3 which is pivoted at ||4 to the
be compressed to press the fabric against the plate
|3| may move.
The cross head |24 loosely car
|38 are interposed between the plate and a re
thel bend to support the wire, while the end of . cessed wall of the cross head to yieldably hold
the bolts and the plate | 31 in downwardly pro 10
10 the stay( is being bent back, and the blocks ||2
will similarly vertically supportl the wire when jected position. When the cross head |24 is low
ered, the plate |31 will engage the fabric, and on
the dies ||0 are operating.
The die slide is recíprocated by means of a further lowering movement, the springs |38 will
|35 to more firmly hold the fabric while the bend 15
ing operations are being performed.
At the completion of the bending operations
The cam |||ir is secured to the shaft |04, and is
so arranged that reciprocatory movements occur ' heretofore described, the edges of the fabric will
be substantially as shown in Fig. 25. _
only during quiescent periods of the fabric.
15 frame of the machine and at its lower end car
ries a cam roller ||5 that engages a cam H6.
Upon movement of the slide y| 08 in one direc
tion, a die |09 and a die ||0 at -one side of the
Take-of)= and reeling stations
Referring now to Figs. 1, 2, 3, 26 and 27, the
machine will be brought respectively into engage
ment with two bent stays,.` and bend said ends fabric after it leaves the third bending station E
is carried forward by the take-olf mechanism
from the positions shownV in Fig. 20 -to the posi
and reeled on spools, ready for shipment.
25 tions shown in Fig. 22, movement of -the slide in
The take-off mechanism comprises a conveyer
the opposite direction performing similar bend
ing operations at the other ends of those stays. structure embodying a shaft |40 journalled in the
The cam ||6 is of such contour that the slide - side frames ofthe machine, and upon which is
mounted a pair of sprocket wheels |4|. A brake '
|08 will be held at an intermediate position dur
30 ing advancing movement of the fabric.
drum |42 is secured to the shaft |40, and abrake 30
In order to compensate for unevenness in the band |43 cooperates therewith to prevent over
fabric and to assist in holding the same during running or further advancing movement of the
bending operations, I provide clamping blocks | I8 conveyer when the advancing movement of the
fabric is periodically interrupted. One end of_
that are carried by a cross bar ||9 which is yield
35 ably held in downward projecting position by a- the band |43 is connected to a bracket |44 and
the other end is connected to a bolt |45`which
spring |20 and a bolt |2|. The member |06 co
operates with the block ||8 to clamp the fabric' loosely extends through the bracket and is en
circled by a spring |46 which yieldably holds the
therebetween, Fig. 22.
band in braking'position with a desired degree of
Third bending operation
Referring to the third bending operation at
.station E, I provide means -for flattening some
what the bends produced at station D, so that
the stay wires will more firmly grip the marginal
45 strand'wires. The bending~ mechanism at this
At the front end of the conveyer a shaft |41
is journalled in the side frames and carries a. pair
of sprocket wheels |48. » A pair of sprocket chains
|49 _passes around the sprockets --|4| _and |48.
-The conveyer chains are provided with anti-fric 45
station (Figs. 3, 23, 24 and 25) , includes an upper tion rollers that enter between teeth of the
cross head |24 and a lower cross head |25, the sprocket wheels, and are also provided- at intervals
with cross- bars |50 secured to certain links of
said cross heads each being reciprocated verti
the chains. Each cross bar is provided with
cally by, pairs of push rods |26 and |21, respec
toothed blocks |5|, the teeth of each entering into 50
50 tively, which are operated through suitable cams
that are mounted .on a shaft |28 that carries a. the mesh openings vin the fabric, and engaging
gear wheel _|29 which is driven from the Vgear the stay wires to advance the fabric to the ma
chine. Intermediate the pairs of sprocket wheels,
wheel |05.-
The cross head |24 carries a pair of diagonally
guide rails or track bars |52 are mounted on the
55 positioned presser blocks |30, one -of which will_
frame to prevent the >upper runs of the chains
engage an upwardly bent ‘stay wire I | to flatten' from sagging.
On each of the shafts |40 and |41 ismounted
the same downwardly, and the other of which
will engage the opposite end of an adjacent stay a plain-faced disc |54 that engages intermediate
wire to bend or Hatten the same downwardly. -portions of the cross bars |50, toV support the
The cross head |25 carries blocks |3| that serve' _ same vagainst sagging.
ï Above the upper run of the conveyer, I mount
as anvil surfaces _upon whichlthe- bending opera
Atiions by the pressers 130 >is performed, and also 1 guide bars |55 upon cross bars |56, the bars |55
Y carries diagonally positioned presser blocks _|33 extending from the front end to the rear end of
for flattening the Vother stay bends upwardly. the conveyer in spaces between' the teeth blocks
|5|, the bars bearing directly upon the fabric to
The cross head |24 carries anvil surfaces |32
with the- teeth of the
upon which the bending blocks |33 will operate hold it in engagement
The crow bars are yieldably held
when bending `a downturned end of a stay wire down by springs |58 that are carried by bolts |59
» =`upwardly. The cross heads |24 and |25 move to
which are carried by and extend upwardly from
70, gether simultaneously'so' that the lower blocks the framework of the machine, so as to maintain
- |33 are> bending two downturned stays'upwardly the guide bars |55 in fabric-holding position. .
-at opposite edges of the machine, while the dies
A ratchet wheel .|60 is secured to the shaft |41,
|30 are ybending the opposite ends of those par
ticular stays downwardly.
In order to guide and hold the _fabric in sultj
‘ and a weighted pawl |6| is provided to ‘prevent
back-lash or return 'movement of the -wheel. ~The
ratchet -wheel |60 is driven by-a spring-pressed 75
pawl |62 which is plvotally connected to an arm
|63 that is pivotally supportedfrom the shaft
|41, so that upon oscillatory movements of the
substantially the same manner as described in
said section of the specification. In order to
bend the intermediate cut ends of the stays, I
arm |63, the conveyer will be given intermittent provide bending elements ||0a and |09a that are
advancing movement. 'I'he arm |63 is oscillated secured to slide bars |08a, which are reciprocated
by a rod ~|64 whose rear end is connected to a transversely of the machine-in the sam‘e man
crank arm |65 that is secured to- the shaft |04. i ner as are the bars |08 of Fig. 17, to effect bend
A guide or hold-down roller |61 is provided for ing back of the cut ends to approximately the
insuring continued movement of the fabric in a plane of the fabric. Suitable holding pins such
10 horizontal plane for a short distance vbeyond the as the pins 99 of Fig. 20 will be provided for sup
conveyer. A ratchetwheel |68 is secured tothe
shaft |41, and has engagement with a pawl |69
that is pivotally mounted upon a belt pulley or
drum |10.>
As the ratchet wheel |60 and the shaft |41 are
given intermittent advancing movements, the pul
ley |10 will be correspondingly advanced and
rotated intermittently by the pawl |69, through
porting the strand wires during the bending oper
ations. Blocks -|10 are provided for supporting
and guiding the wires. these blocks being mount
ed on brackets ||9a. Upper guide blocks |19
are also supported by the bar ll0a.
Referring now' to Fig. 3l, I show guide means
for flattening the bent-back ends of the cut stays
substantially `as described heretofore under the
ratchet wheel |68, so that step-by-stepmovef
title “Third bending operation”. In this ar
ments are imparted to a belt |1| that „through rangement, the cross heads |24a and |25a, re
a pulley |12 drives a take-up reel |13. A belt spectively, carry the pressers |30a and anvil
tightener |14 is provided and is so adjusted that blocks |3|a which correspond to the elements |30
there can be convenient slippage; between the and |3| of Fig. 24. For the intermediate cut ends
pulley |10 and the belt |1|, since when a _con
of the stays, I provide presser elements |301» and
siderable .body of fabric has been wound on the anvil blocks ilib.
reel |13, the take-up movement of the reel will
It will thus be seen that I am enabled to form
tend to exceed the rate at which the fabric is several widths of fabric simultaneously, through
being formed on the machine, in which case there _ the use of a machine used also for forming wide
will be slippage of the pulley |10. Pawls |15 fabric, and without greatly increasing the num
30 have engagement with a ratchet wheel |16 that
ber of parts of the machine-by merely adding
is carried by the reel, for preventing back-lash the intermediate cutting and bending‘elements
or backward movement of the reel.
jto the respective cross heads.>
In Figs. 28 to 31, I show modiñcations of the
I claim asmy invention:
stay-trimming and bending mechanisms where
1. Fabric-forming apparatus comprising means
by a plurality of ,narrow bands can be formed. for advancing wire strands longitudinally to ap
from what is initially produced at the entrance
end of the machine as a substantially full-width
As shown in Fig. 28, the cutter bar 1|a is pro
40 vided not only with end trimming knives 10a,
as in Fig. 12, but is provided with intermediate
knives 10b, arranged in pairs so as to cut inter
mediate sections out of the stay wires when trim
ming the ends of the wires. A reciprocable knife
45 bar orvcross head 13a corresponds to the bar 13
of Fig. 12, and is provided with knives 12b that
cooperate with the knives 10b to cut sections from
the stays. Certain. of the strand wires arev
omitted at the points of cutting, asshown in Fig.
28. The single wide band is 'thus divided bythe
proximately a common plane, means for deflect
ing certain of said wire strands to form a space
in the mid plane of the fabric, means for supply
ing' stay wires, and means for crimping said wires .
and ' feeding them into said space, with the 40
crimps disposed in a plane substantially parallel
to the plane of the fabric.
2. Fabric-forming apparatus comprising means
for advancing wire strands longitudinally _to ap
proximately a common plane, means for-defiect`- 45
ing certain of said wire strands to form a space
in the mid plane of the fabric, means for supply
ing stay wires. means for crimping said wires
and feeding them into said space, with the crimps
posed in 'a plane substantially parallel to the
cutters into three narrow bands.
piane of _the fabric, and means for placing the
Fig. 29 is provided with bending elements Sla strands under tension suilicient to >move the de
that bend the ends of the stays at right angles ilected portions of said strands toward the mid
to the plane ofthe fabric, as in the case of‘theA plane of the fabric, a suiiicient distance to en
element 9| of Fig. 16. These bending-elements gage the crimps of the stay wires and turn the lla are carried on cross heads 60a and lla' that, - stays so that their crimps are disposed in a plane
' correspond to the cross-heads 60 and 6| of Figs.
14 and’15. A suitable number of guide pins “a
are provided for holding the strand wires against
approximately perpendicular to the plane of the l
3. The method of forming fabric which com
60 displacement during the bending operation. Ad 4prises assembling wire strands in approximately
ditional bending elements 9|b are mounted on 4a> common plane, deflecting certain of said
the cross vheads 60a and 8|a to bend the inter
strands to form a- space in the-planeVV of the
mediate ends of the. stays-in substantially the fabric, inserting a crimped stay into said space,
same manner as their outerlextremities are bent. Y with the crimps disposed in» a plane approxi
Fig. .30 shows the` second bending operation of mately parallel to the piane of the fabric, and
the various stay sections, the parts being` oper
ated similarly to the operations heretofore de-i
scribed in connection’ with the discussion of Fig.
"20, andunder title "Second bending operation”.
70 The extreme outer endsof the stays are bent in
exerting a straightening force~ on _the strands to
force them into engagement-with the stays, so as
to turn the said crimps to a plane approximately
perpendicular to the plane of the fabric.
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