close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2405257

код для вставки
Aug, 6, 1946.
E. KEHRER ET AL
FENCE MACHINE ‘
'
'
Filed Aug. 11, 1944
WITNESS-ES!
2,495,257
_
'7y Sheets-Sheet l
‘
INVENITORS
ATTORNEYS‘.
' \Aug. 6, 1946.
E. KEHRER' E1- AL
‘2,405,257
FENCE MACHINE
Filed Aug. 11 , 1944
7‘ Sheets-Sheet 2
7/v ww
1/.
WiTNESSESZ
PM
‘
ATTORNEYS.
Aug. 6, 1,946.
5. KEHPRER EI‘AL
- 2,405,257’
FENCE MACHINE
Filed Aug. 11, 1944
egg-messes.
m.
7 Sheets-Sheet 3.
WWW
mm
H 7- TORNEYS. " “
Aug. 6,1946;
E. KEHRER ET AL
v‘ j 2,405,257
FENCE MACHINE
Filed Aug. 11, 1944
'7 Sheets-Sheet ‘5
.
clzzr'lvsssss. ‘
V6,
.
.107 109
‘('11
a.
f
E
Alugo
194a.
E. KEHRER ETAL '
,aszg?
FENCE‘ MACHI NE
Filed Aug. 11, 1944
7 Sheets-Sheet s
Aug. 6,1946.
E. KEHRER Em.
~ 2,405,255?
Y FENCE MACHINE
Filed Aug. 11, 1944
7, Sheets-Sheet 7
26
"
129
126
wzrxwssslss.
7%.
V61 9%
w,
,
128
'
-
12v
.
7
.I
INVENTORS'
J i
I,’ é_ CTr
_
BY_. (5W" 6WM
~ /I
2,405,257
Patented Aug. 6, 1946
UNITED STATES PATENT OFFICE
2,405,257 '
FENCE MACHINE
Ernest
Faust,Kehrer,
Monessen,
Belle
Pa.,Vernon,
assignors
andto Cli?'ord
Pittsburgh
Steel Company, Pittsburgh, Pa., a corporation
of Pennsylvania
Application August 11, 1944, Serial No. 549,108
9 Claims. (Cl. 140-112)
1
Referring to Figs. 1, 2, and 3 of the drawings,
This invention relates to apparatus for making
the machine has a pair of end frames I and 2
that are rigidly connected in front by a long hori
zontal plate 3 provided on top with a clove tail
general type shown in Perry Patent No. 813,823.
The Perry patent shows a fence making ma 6 rib 4. The end frames are connected centrally by
horizontal beams 5 and 6. The tops of the end
chine in which a plurality of parallel vertical
frames support a rotatable horizontal shaft ‘I
strand wires are intermittently fed upwardly
on which a plurality of grooved wheels 8 are
through the machine while a single horizontal.
rigidly mounted. These wheels are provided with
cross wire is intermittently fed across the strand
wires. The cross wire is cut periodically at one IO radial lugs 9 (Fig. 2) spaced apart the same dis
tance as the stay wires of the fence being made
end of the machine to form a stay wire that is
by this machine. Parallel strand wires II] are led
then transferred sideways into contact with the
from’ coils rotatably mounted in front of the ma
strand wires to which it is welded while the cross
chine to grooved guide rollers journaled in the
wire is again fed across the machine. The strand
lower front part of the machine. These coils and
wires then move upwardly a distance correspond»
rollers, which are of conventional form and well
ing to the desired distance between the stav
known, are not shown. The wires pass under the
wires, following which the next stay wire is welded
guide rollers and then straight up through, the
to the strand wires in the same way as the previ
machine to wheels 8 over which they travel before
ous stay wire. This machine is used extensively
passing down to a reel I I journaled in brackets I2
for making welded wire fence, but it has the dis
projecting from the back of the end frames.
advantage that only one stay wire at a time can
As shown in Fig. 2, the machine is driven by a
be welded to the strand wires. The rate of pro
‘belt I3 that extends around a pulley I4 sup
duction of the Perry machine can not be increased
ported by bracket I2 at the left end of the ma
by merely doubling the number of cross wires
chine. This pulley carries a pinion It which
25
and they mechanism that handles them, because
welded wire fabric, hereinafter referred to as
fence, and more particularly to a machine of the
meshes with another pinion I'I supported by the
his stay wire transfer mechanism would then
same bracket, and the second pinionv drives a
interfere with feeding of the cross wires across
the strand wires.
-
large gear I8 mounted on the projecting end of
‘
a horizontal shaft. I9 which is journaled in bear
ings 2 I in the lower rear portions of the two end
frames. One of the spokes of this large gear is
provided with a radial slot 22 in which the lower
end of a vertical rod 23 is slidable. The upper
end of the rod is pivotally connected to the outer
end of an arm 24 the inner end of which is oscil
latably mounted on the end of top shaft ‘I. This
arm is provided with a spring-presed pawl 26 for
engaging a ratchet wheel 21 rigidly mounted on
the top shaft. The ratchet wheel is prevented
It is among the objects of this invention to pro
vide a machine for making welded wire fence in
which a plurality of stay wiresare simultaneously
welded to strand wires, in which new stay wires
are formed as the preceding set is being welded
to the strand wires, in which several stay wires
can be formed and Welded to the strand wires ,
substantially as quickly as a single stay wire, "
and in which fence can be produced at a mate
rially faster rate than heretofore.
The preferred embodiment of the invention is
illustrated in the accompanying drawings in
from rotating in a reverse direction by a spring
pressed dog 28 pivotally supported byv the adja»
which Fig. 1 is a front view of our machine
with the strand wire guide rollers omitted; Fig. 2
is a view of the left end of the machine; Fig. 3
is an enlarged fragmentary view of the right end;
Fig. 4 is a still further enlarged fragmentary
horizontal section taken on the line IV-—IV of
Fig. 3; Fig. 5 is an enlarged fragmentaryv rear
view of one of the picker ?ngers and the support
ing bar; Figs. 6, '7, and 8 are fragmentary ver
tical sections all taken on the-line A—A of Fig. 1
:45
but showing the stay wire transfer mechanism in '
three different positions; Fig. 9 is a fragmentary
vertical section taken on the line IX—IX of Fig. 1;
and Fig. 10 is a front view of the apparatus shown
in Fig. 9.
V
'
cent end frame. It will 'be seen that every time
gear I8 makes a complete revolution, it oscillates
arm 24 and thereby rotates the top shaft a few
degrees to feed the strand wires ahead the neces
sary distance.
The top shaft also projects beyond the right
hand end frame 2, and its projecting end hasv a
ratchet wheel 30 rigidly mounted thereon, as
shown in Fig. 3. Encircling this wheel» is a loose
pulley 3I that carries a spring-pressed pawl 32
which is engaged by the teeth of ratchet wheel 3%
so that the pulley is turned by the wheel every
time the top shaft is turned. “Pulley 3| is con
as nectedby a belt 33.to another pulley 34 (Fig. 1)
3
2,405,257
rigidly mounted on the end of reel 1 l at the back
of the machine, whereby to drive the reel in order
to wind thereon the fence that is made in this
machine.
In order to produce the stay wires for the fence,
a pair of verticallyspaced horizontal cross wires
are fed across the machine from left to right inthe
following manner. As shown in Fig. 2, the large
gear [8 is operatively connected through bevel
4
pressing down on top of the bar. One side of the
cutter frame is provided with an opening into one
side of its vertical passage, and the bar is pro
vided with a transverse slot 78 beside that open
ing. Projecting into this slot is the lower end
of a, bell crank lever 19 that is pivotally supported
.byjthe cutter frame. The upper end of this lever
is pivotally connected to the inner end of a link
8] that has its outer end pivotally connected to
gears 36 and 31 to the rear end of a horizontal 10 the upper front end of an actuating lever 82, as
shaft 38 journaled in the lower part of end frame '
shown in Figs. 1 and 2. The central portion of
l. Rigidly mounted on the front end of this shaft
lever 82 is pivotally mounted on the outside of
end frame I, and its lower end rides against the
All is pivotally mounted. One end vof this pawl
inner face of big gear Ill which is provided with
normally is urged by a spring into engagement 15 a boss 83 for-periodically swinging the lower end
with a ratchet wheel 4| rotatably mounted on
of the lever toward the end frame. This move
the outer end of shaft 38. Rigidly connected'to
' ment causes the lever to pull the link and there
this ratchet wheel is a pinion 42 (Fig-1) that
by swing the lower end of bell crank 19 upwardly.
meshes with a gear 43 rotatably supported by a
This raises bar 12 by which the cross wires are
bracket 46 projecting laterally from the end 20 lifted up against stationary knives 84 and 85 pro
frame. Gear 43 drives another gear 45 also‘ sup
jecting downwardly and rearwardly from the
ported by the same bracket, while rigidly con
cutter frame, whereby the wires are severed in
nected to the rear side of the second gear is a
order to produce stay wires 86 and 81 (Figs. 1,
pinion 4‘! that meshes with another pinion 48 on
6, 7, and 8) of predetermined length.
the front end of‘ a horizontal shaft c9 journaled 25
As the cross wires travel across, the machine
on a pedestal bearing 5!, The rear end of this
before they are out, ‘they are supported and
shaft carries a bevel pinion 52 (Fig. 2) that meshes
guided by two vertically spaced rows ‘of laterally
with a similar pinion 53 on the lower, end of a
spaced guide members through which the wires
vertical shaft 54 also supported by the pedestal
pass. These guides are mounted on the rear sides
hearing. The upper end of shaft 54 is journaled
of a pair of parallel cross bars 90- and 9| sup
in a bearing 59 supported by a horizontal I-beam
ported at their opposite ends , by inverted L
51 the opposite ends of which are supported by
shape :bars 92 the upper'front ends of which are
end frame I and by the top of a vertical I-beam
clamped to rib 4 of cross plate3. A vertically
58 resting on the machine foundation.
spaced pair of these guide'members is disposed
. Rigidly mountedon vertical shaft 54 is a pair 35 in front of each strand wire (Fig. 1). As shown
is a short arm 39 on the outer end of which a pawl 7
of large grooved feed rolls 60 that substantially
in Figs. 4 and 6, each guide includes a metal block
engage a pair of smaller grooved feed rolls 6| in
front of them. The smaller rolls are carried by
provided with a wire-receiving slot 96 extending
arms 62 which are pivotally supported by brack- '
across its lower side. The bottom of this slot nor
95 connected to the cross bar in front of it and
ets 63 projecting laterally from the vertical I 40 mally is closed by a jaw 91 having upright ears
beam. Threaded through the outer ends of these
that are pivotally mounted on a pin 98 extending
arms are hand screws E4 that bear against the
through the block. The jaw is urged toward its
brackets for adjusting the pressure of the smaller
upper closed position by coil springs 99 behind
rolls against the larger ones. ‘The horizontal
it, but it can be swung downwardly away from
cross wires 65 and 65 are delivered to the two V45 the slot by pressing the wire in the slot down
sets of feed rolls from reels and straightening
wardly against the jaw, thereby permitting the
mechanism (not shown), and are fed by the rolls
wire to be removed from the bottom of the slot.
across the machine in front of the vertical strand
The vertical strand wires travel across two ver
wires. Once during each revolution of arm 39
tically spaced rows of electrodes llll supported
the projecting rear end of its pawl 40 strikes a 50 behind them by beam 6. ‘ Directly opposite these
stop 61 on the end frame and is thereby swung
electrodes and disposed in a vertical plane nor
out of engagement with ratchet wheel 4! so that
mally in front of the guide member slots 96 is
the ratchet stops rotating for a moment. This
another set of electrodes I02. Electricity is sup
causes the feed rolls to stop, which means that
plied to' the two sets of electrodes in the usual
the feed of the horizontal wires across the ma 55 manner through transformers H13 , suspended
chine is intermittent.
from the electrodes. Each vertically spaced pair
The feed rolls deliver cross wires 55 and 69 to
of front electrodes is carried by a block I04 sup
a. pair of vertically spaced cutters that sever them
ported .by the rear end of a horizontal rod I06
every time their forward motion is interrupted,
slidably mounted in'the front and rear portions
which, according to the timing of the machine,
of a horizontal beam I01. The rod is urged rear
occurs every time the leading ends of the wires
wardly' by an encircling coil spring I08 com
reach the oppositeor right end of the ‘machine.
pressed between the front portion of the beam
As shown in Figs. 9 and 10, the frame ‘H of the
and a shoulder on the rod. Rearward movement
two cutters is supported by and behind ribbed
of the rods is limited by stop nuts I99 threaded
plate 3 close to the inside of end frame I of the
on their ‘outer ends and normally engaging the
machine. This cutter frame is provided'with a
front of the beam. The opposite ends of this
vertical passage through it with a bar 12 slidably
beam are slidably mounted in horizontal guide
mounted therein. The bar has a pair of vertically
ways Ill (Fig. 1) in the front portions of the
spaced extensions 13 and 14 projecting rearward
end frames of the machine. The beam is recip
ly through slots in the frame. These projections
rocated in these guideways, in order to move the
are provided with horizontal openings which, in
front set of electrodes toward and away from
their normal lower positions, are in line with the
the rear set, by a pair of horizontal rods H2 the
cross wires that pass through them. Bar 72 is
front ends of which are connected to the ends of
normally held in its lower position by a leaf spring
the beam The'rear ends of these rods, are piv
16 connected to the top of the cutter frame and 75 otally connected to the central portions of verti- _
.5
2,405,257
6
cal rocker arms H3 that are pivotally connected
lated and. its lower .end therefore pushes against
at their upper ends to the inside of the adjacent
end frames, as shown in Fig. 3. The lower por
is ‘transmitted through the adjoining spring I39
one of the collars on sleeve I38.
This pressure
tions of the rocker arms are bifurcated and carry »
to the rod I36 which is thereby moved either
rollers II4 that engage cams II6 rigidly mounted 5 forward or backward to move the adjoining guide
on bottom shaft I9. Rotation of these two cams
plate I24 in the same direction.
therefore swings the lower ends of the rocker
Connected to .picker frame rods I20 at points
arms back and forth and thereby reciprocates
midwaybetween the strand wires are the ends
beam III‘! in the end frames of the machine.
of vertical picker bars I53. As shown in Figs.
As soon as a pair of stay wires has been formed 10 4 to 8, each .of these bars is provided in one
in front of the strand wires by cutting the two
side with a pair of vertically spaced L.-shape
cross wires, which stopped just long enough to be
recesses I5I,-at one side .of .the rear end of each
cut, the stay wires are quickly removed from the
of which there is a projection of ‘the bar to which
guide members and transferred to the strand
a, picker ?nger I52 is pivotally connected. These
wires to which they are welded. By the time this 15 ?ngers are. spaced apart the same distance as
has occurred and the strand wires have been
the stay wires. The rear portion of each ?nger
moved upwardly by wheels 8, a new set of stay
below its pivot is provided with a notch thatco
wires is ready to be welded'to the strand wires.
operates with a similar notch in the adjoining
Handling of the stay wires, just before the weld
portion of the bar for receiving a stay wire.
ing operation, is accomplished by what is known 20 Each ?nger also has its front end urged up
as a picker mechanism. The frame of this mech
wardly by a coil spring I54 connected thereto
anism is formed by a pair of vertically spaced
and totheupper end of the recess. When the
horizontalv rods I 26 extending across the machine
picker mechanism is in its upper position the
in front of the strand wires above and below the
upper row of these picker ?ngers is above the
guide members with the ends of the rods rigidly 125 top staywire ‘and the lower row of ?ngers is be
mounted in a pair of vertical bars I2‘I, as shown
tween the two stay wires. When levers I 3i move
in Figs. 1, 4, 9, and 10. Each of these bars is
the picker bars downwardly, the stay wires are
provided near its top and bottom with pins I22
gripped by the ?ngers and forced out of the
projecting laterally through a pair of slots I23 in
bottoms of slots 96in the guide members. After
a vertical guide plate I24 near the adjacent end ~30 the stay wires have been thus freed from the
frame of the machine, These guide plates are
guides they are moved downwardly and rear
supported by brackets I26 and I2'I projecting for
wardly into contact with the strand wires in po
ward from the end frames and beam 5, respec
sitions‘directly in front of the rear electrodes.
tively, the guide plates being connected to the
As this occurs, the front electrodes are moved
brackets by pins I28 projecting laterally from the
back against the stay wires to hold them against
top and bottom of the plates into short horizon
the strand wires, as shown in vFig. 7, while guide
tal slots I29 in the brackets. The left hand guide
‘plates I2'4 are moved forward by rods. I36 to
plate is provided with notches I36 through which
cause the picker ?ngers to be released from the
the cross wires extend.
(
stay wires. As soon as the picker ?ngers leave
The guide plate slots I23 have vertical upper AI) the stay wires, welding takes place at the points
portions and rearwardly and downwardly in
of intersection of the stay and strand wires.
clined lower portions. Pins I22 are moved up
After the \guide plates and the rest of the
and down in these slots by levers I3I that are
picker mechanism have been moved forward
pivotally connected to the inside of the end
away from the welded wires, levers I3I raise end
frames. The front ends of these levers are piv
bars I2I in slots I23 of the guide plates to ele
otally connected to forked links I32 oscillatably
vate the picker ?ngers above the new stay wires
mounted on the upper rod I26 of the picker
that have been fed into the guide members in
mechanism next to the end bars. The rear ends
the meantime. Rods I36 then move the guide
of the levers are operatively connected by verti
plates back to their rear position so that the
cal rods I33 to eccentrics I34 (Figs. 1 and 3)
picker ?ngers can again be lowered to engage
mounted on bottom shaft I9 adjacent the rocker
the new stay wires and transfer them to the
cams.
strand wires for welding. Fig. 8 shows the
Guide plates I24 are moved back and forth in
empty picker ?ngers in their forward position
bracket slots I29 by means of short horizontal
about half way between their upper and lower
rods I36 projecting from their rear edges. Each
positions as they are being raised. While this
of these rods is slidably mounted in a pair of
is happening the electrodes are " separated and
spaced brackets I3‘! projecting inwardly from
the adjacent end frame of the machine.
The
central portion of the rod is reduced in diam
the strand wires with the stay wires that have
been welded to them are moved upwardly a pre—
determined distance.
eter to provide shoulders near its ends between 60
The operation of this machine will now be re
which and a sleeve I38, slidably mounted on the
viewed. As strand wires II] are pulled upwardly
center of the rod, a pair of coil springs I33 are
across rear electrodes IEII by means of wheels 8,
mounted. The ends of the sleeve are encircled
the cross wires 65 and 66 are fed across the ma
by integral collars between which the sleeve is
chine in front of the strand wires by means of
straddled by the bifurcated lower end of a bell
feed rolls 60 and GI. These cross wires pass
crank lever I4I. This lever is pivotally connected
through the openings in cutter bar extensions “I3
to the adjacent end frame of the machine. The
upper end of the lever is connected to the upper.
gripping members. When the leading ends of
end of an inclined rod I42 that terminates in a
the cross wires reach the opposite end of the
vbifurcated member I43 straddling bottom shaft
I9 beside the adjacent rockercam H6 (Figs. 1
and 3). Mounted on the side of this member
is a cam follower roller I44 that engages acam
I45 fastened to the bottom shaft. When rod
I42 is reciprocated by cam I45 lever I'4I is oscil
and ‘I4 and through slots 96 in the two rows of
machine, the pawl 40 on continuously rotating
shaft 38 strikes stop 6'! (Fig. 1) by which it is
moved out of engagement with ratchet wheel III.
This stops the rotation of the feed rolls for a
moment, and while the cross wires are stationary
the lower end of lever 82 is struck by boss '83
2,405,257
' 7
' 8
(Fig. 2) on large gear l8, thereby vcausing the
wires, the strand wires are moved upwardly twice
that distance after each welding operation. This
upper end of the lever to pull cutter‘ lever 19
locates the lowest stay wire the same distance
to the left. The lower end ofthe. cutter lever is
above the upper electrodes as the next bottom
therefore moved upwardly and, byreason of its
projection into slot 18 in cutter bar. 12, .it raises Cl stay wire 81 will be below them, so the next top
stay wire 86 will be half way between the stay
the bar and its extensions 13 and 74 and thereby
wires 81 directly above and below it. On the
forces the cross wires against knives 84 and 85
other hand, if the spacing between fence stay
by which the wires are cut to form stay wires 86
and 81.
.‘
wires is to be one-third the distance between the '
cross wires, 'for example, then the strand wires
While the cutter bar is returning to‘its original
are moved upwardly two-thirds that distance each
position,. levers I3I start to move the picker
time. The upper electrodes will weld a stay wire
?ngers I52 downwardly from their Fig. 6 posi
half way between each preceding pair of stay'
tion. The path of movement of the ?ngers is
wires, thereby making the space between the wires
determined and controlled by the slots I23 in
guide plates I24 at the opposite ends of the ma 15 only one-third the distance between the upper
and lower electrodes. Other spacing between the
chine, because pins I22 on the end bars I2l of
stay wires can be obtained in like manner by
the picker frame slide in those slots. The down
advancing the strand wires the proper amount,
wardly moving picker ?ngers snap onto the two
but care must be taken not to let the stay wires
stay wires supported by the guide members and
then force them down out of slots 96 in those 20 welded by the lower electrodes stop between the
upper electrodes. Also, by making this machine
members by pressing the wires. down against
larger, it is obvious that three or more stay wires
jaws 91 which are thereby swung down and away
can be welded simultaneously to the strand wires
As soon as this has occurred,
in the same manner as two are shown in the
pawl 40 again engages ratchet wheel 4| which:
_
causes the feed rolls to resume feeding of the 25 drawings.
Amachine constructed in accordance with this
cross wires across’ the machine, and through the
invention can produce welded wire fence much
empty guide members. While this is going on,
faster that it has been made before because it
the ‘picker ?ngers continue to move the stay
can form a plurality of stay wires and Weld them
wires downwardly and then rearwardly until
the stay wires engage ‘the strand wires‘ in'front 30 to the strand wires about as rapidly as earlier
machines have been able to form a single stay
of rear electrodes l?l, as shown ‘in Fig. 7. In
wire and then weld it in place. When several
the meantime, the. strand wiresv have stopped
from the slots.
stay wires are welded to the strand wires at the
same time, a longer section of fence is thereby ‘
in which it is moving arm 24‘ upwardly so that
pawl 26 slides over the teeth of ratchet wheel 21 35 produced at that moment and a longer section of
fence is moved forward after each welding opera
instead of turning the wheel.
'
tion than heretofore.
By the time the stay wires have engaged the
' According to the provisions of the patent stat
strand wires, the front electrodes I02 have been
utes, we have explained theprinciple and con
moved toward the rear electrodes. by means of
cross beam I07 which is reciprocated'by the cam 40 struction of our invention and have illustrated
‘and described what we now consider to repre
actuated rocker arms H3. The two sets of wires
sent its best embodiment. However, we desire
are gripped between the two ‘pairs of electrodes
to have it understood that, within the, scope of
and held tightly together, whereupon guide plates
I24 are moved forward by short rods I3ii which
the appended claims, the invention may be prac~
are actuated by cranks MI and cam actuated rods 45 'ticed otherwise than as speci?cally illustrated and
I42. The picker frame is carried forward with
described.
‘
>
moving, due to large gear I8 reaching a position
the guide plates, the picker ?ngers opening and
releasing the stay wires as they are pulled away
from those wires. As soon as the ?ngersare
We
claim:
'
i,
,
.
,
1. A wire fabric making machine, comprising
means for intermittently- and simultaneously
freed from the stay wires, electric current is sup- 50 feeding a‘ plurality oflparallel vertical strand
plied to the electrodes for welding the stay wires
wires lengthwise, means for intermittently and
simultaneously feeding a plurality of vertically
to the strand wires at their points of intersection.
Beam I0’! is then moved'forward again to sepa
spaced horizontal wires across the front of the
rate the two pairs of electrodes. At the same
strand wires in spaced relation thereto, means
time, levers I3I start moving the picker frame 55 for cutting said horizontal wires at one side of
upwardly in guide plate slots I23, as shown in
thestrand wires while the horizontal wires are
Fig. 8. Due to the guide plates being in their
stationary to thereby form a set of stay wires in
forward position at this time, the picker ?ngers
front of the strand wires, means for detachably
do not strike the cross wires that have been fed
gripping the set of stay wires and moving them
rearwardly into contact with the strand wires,
and horizontally movable welding electrodes for
engaging the contacting strand and stay wires at
into the guide members in ‘the meantime, but
pass in front of the wires. After the picker ?n
gers have risen above these cross wires, rods I36
move the guide plates back to their original posi
tion, shown in Fig. 6, in which the picker fingers
their intersections when the strand wires are
stationary to weld them together, said horizontal
wire feeding means resuming the feeding of the
horizontal wires before said gripping means leave
said stay wires, and means for moving‘ said grip
ping means forward away from the contacting
strand and stay wires and vertically in front of
sumed, whereby the welded stay wires are raised 70 the newly fed horizontal wires; preparatory‘ to
engaging a new set of, stay wires.
'
with the strand wires av predetermined distance
2,. A wire fabric making machine; comprising
,to make way for the next set of stay wires which
means for intermittently and simultaneously
are about to‘ be welded to the strand‘wires. When
are again directly above the cross wires and
ready to move downwardly to grip those wires as
soon as they have been severed by the cutters.
As soon as a pair of stay wires have been welded
to the strand wires, feeding of the latter is re
the spacing between the stay wiresofthe'fence is
to be the same as thedistance'between theicross
feeding a plurality of parallel vertical strand
75 wires lengthwise, means for intermittently and
2,405,257
9. i
simultaneously feeding a plurality of vertically
spaced horizontal wires across the front of the
strand Wires in spaced relation thereto, means
for cutting said horizontal Wires at one side of
the strand wires while the horizontal wires are
stationary to thereby form a set of stay Wires in
10
?ngers leave said stay wires, said ?rst-mentioned
picker moving means then moving the bars up
wardly and forwardly and then upwardly, and
said second-mentioned picker moving means then
moving the bars rearwardly to position the picker
?ngers above said horizontal wires.
5:. Inia Welded wire fence making machine in
which horizontal stay wires are moved rearwardly
toward vertically movable strand wires and then
tically spaced wire-gripping ?ngers connected by 10 welded thereto, means for thus moving a plu
rality of vertically ‘spaced stay wires simultane
an upright bar located in front of the forward
ously, said means comprising a plurality of hori
position of the stay wires at all times, and weld
zontally spaced vertical bars, a plurality of ver
ing electrodes for engaging the contacting strand
tically spaced gripping ?ngers pivotally connected‘
and stay wires‘atthéir intersections when the
front of the strand Wires, pickers for moving the
set of stay wires rearwardly into contact with the
strand Wires with each picker including ver
strand wires are stationary to weld them together, 15 to each bar and projecting rearwardly therefrom
across thestay wires, means for moving said' bars
said horizontal wire feeding means resuming the
vertically to engage said ?ngers with the stay
feeding of the horizontal Wires behind said picker
wires and then rearwardly to place the stay wires
bars while said stay wires are gripped by the
against the strand wires for welding, and means
picker ?ngers.
'
for moving said bars forward to separate said
3. A wire fabric making machine, comprising
?ngers from the stay wires, said bars then being
means for intermittently and simultaneously
returned to their original position.
feeding a plurality of parallel vertical strand
Wires lengthwise, means for intermittently and
6. In a welded wire fence making machine in
which horizontal stay wires are moved rearwardly
spaced horizontal wires across the front of the 25 toward vertically movable strand wires and then
simultaneously feeding a plurality of vertically
strand wires in spaced relation thereto, means
for cutting said horizontal wires at one side of
the strand wires while the horizontal wires are
stationary to thereby form a set Of stay wires in
welded thereto, means for thus moving a plu- '
rality of vertically spaced stay wires simultane
ously, said means comprising a plurality of hori
zontally spaced vertical bars, a plurality of ver
front of the strand wires, pickers for moving 30 tically spaced gripping ?ngers pivotally connected
to each bar and projecting rearwardly therefrom .
the set of stay wires downwardly and rearwardly
across the stay wires, vertically spaced members
into contact withthe strand wires with each
connecting the upper and lower ends of said bars,
picker including vertically spaced wire-gripping
means connected to one of said members for re
?ngers connected by an upright bar located in
ciprocating it vertically to cause said ?ngers to
front of the forward position of the stay wires
periodically engage stay wires in their path,
at all times, horizontally movable welding elec
means for guiding said bars toward and away
trodes for engaging the contacting strand and
from the strand wires as the bars are reciprocated
stay wires at their intersections when the strand
vertically, whereby said ?ngers place the stay
wires are stationary to weld them together, and
means for moving said picker bars forward away 40 wires against the strand wires for welding at their
points of intersection, and means for reciprocat
from the contacting strand, and stay wires and
ing said bars horizontally to separate said ?ngers
then upwardly followed by a rearward movement
from the stay wires engaging the strand wires.
to their original starting position, said horizontal
'7. In a welded wire fence making machine in
Wire feeding means resuming the feeding of the
which horizontal stay wires are moved rearwardly
horizontal wires behind said picker bars while
toward vertically movable strand wires and then
said stay wires are still gripped by the picker
Welded thereto, means for thus moving a plu
?ngers.
rality of vertically spaced stay wires simultane
4. A wire fabric making machine, comprising
ously, said means comprising a plurality of hori
means for intermittently and simultaneously
feeding a plurality of parallel vertical strand wires 50 zontally spaced vertical bars, a plurality of ver
tically spaced gripping ?ngers pivotally connected
lengthwise, means for intermittently and simul
to each bar and projecting rearwardly therefrom
taneously feeding a plurality of vertically spaced
across the stay wires, vertically spaced members
horizontal wires across the front of the strand
connecting the upper and lower ends of said bars,
wires in spaced relation thereto, means for cut
ting said horizontal wires at one side of the strand
wires while the horizontal wires are stationary to
thereby form a set of stay wires in front of the
strand wires, pickers for moving the set of stay
Wires rearwardly into contact with the strand
means connected to one of said members for re
wires with each picker including vertically spaced
wire-gripping ?ngers connected by an upright
vertically, whereby said ?ngers place the stay
wires against the strand wires for welding at their
bar located in front of the forward position of
the stay wires at all times, means for moving the
picker bars ?rst downwardly to engage said ?ngers
with the stay Wires and then downwardly and
points of intersection, and means connected to
said guiding means for reciprocating them hori
rearwardly toward the strand wires to place the ~
8. In a welded wire fence making machine in
which horizontal stay wires are moved rearwardly
stay Wires against the strand wires, horizontally
ciprocating it vertically to cause said ?ngers to
periodically engage stay wires in their path,
means for guiding said bars toward and awayv
from the strand wires as the bars are reciprocated
zontally to separate said ?ngers from the stay
wires engaging the strand wires.
_
toward vertically movable strand wires and then
movable welding electrodes for engaging the con
welded thereto, means for thus moving a plu
tacting strand and stay Wires at their intersec
tions when the strand wires are stationary to weld 70 rality of vertically spaced stay wires simultane
ously, said means comprising a frame in front
them together, and means for then moving the
of the strand Wires, a plurality of horizontally
picker bars forward away from the contacting
spaced vertical bars mounted in said frame, a
strand and stay wires, said horizontal wire feed
plurality of vertically spaced gripping ?ngers car
ing means resuming the feeding of the horizon
tal wires behind said picker bars before the picker 75 ried by each bar and projecting rearwardly there
2,405,257‘
from across the stay wires, guide members at the
opposite ends of said frame provided'with guide
slots, means for reciprocating said members hor
izontally, said frame being provided with projec
tions extending into said guide slots, and means
connected to the frame for reciprocating it ver
12
spaced horizontal rods, vertical bars rigidly con
necting the ends of said rods together, vertical
guide plates disposed beside the outersurfaces of
said end bars and each provided with a pair of
vertically spaced slots, each slot having a ver
tical upper part and a downwardly and rearwardly
tically, said slots in their rear position guiding
inclined lower part, means projecting from said
said ?ngers into engagement with the stay ,wires
end bars into said slots for sliding movement
and then rearwardly to transfer the stay wires
lengthwise thereof, means for periodically moving
to the strand wires for welding thereto, said guide 10 said guide plates forwardly and rearwardly, means
members being moved forward after the stay
for periodically lowering and raising said rods and
Wires have engaged the strand wires,‘and said
end bars as a unit ‘relative to the guide plates, a
slots and guide member reciprocating means'then
plurality of vertical picker bars connected at their
returning the frame to its original position.
ends to said rods, and a plurality of vertically
9. In a welded wire fence making machine in 15 spaced picker ?ngers projecting rearwardly from
which horizontal stay wires are‘ moved rearwardly
each picker bar and adapted to temporarily grip
toward vertically movable strand wires and then
said stay wires to move them downwardly and
welded thereto, means for thus moving a plu
rearwardly into contact with the strand wires.
rality of vertically spaced stay'wires simultane
ERNEST KEI-IRER.
ously, said means comprising a pair of vertically 2o 'CLIF'FORD E. EAUST.
Документ
Категория
Без категории
Просмотров
0
Размер файла
1 391 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа