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Патент USA US2521324

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Sept 5, 1950
E. 1.. AX ETAL
Filed April 8, 1949,
2 Sheets-Sheet 1
Sept‘ 5, 1950
Filed April 8, 1949
2 Sheets-Sheet 2
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Patented Sept. 5, 1950
Erick L.’ Ax and James A. Jackson, Pittsburgh, Pa.
' Application April 8, 1949, Serial No. 86,237 "
5 Claims. (01. 30s_24)
This invention relates to a latch and more
particularly to a latch for holding a wire reel
mandrel in the ?yer of a barbed wire machine
while barbed wire is being spooled thereon.
pulley drive (not shown). Reel unit 4 is made
to revolve within frame 2 by means of a bevel
gear I0, ?xed to a ?xedly mounted revolving
reel head l2, which meshes with bevel gear I4
?xed to a drive shaft l6. Shaft I6 is driven
through suitable gearing by shaft 8. The reel
carrying unit 4 is made up of the ?xed revolving
The take-up or spooling mechanism of a barbed
wire machine serves two purposes; it not only
winds the barbed wire onto a spool, but it also
imparts a twist to the two wires making up the
barbed wire strand as they are wound upon the
removable mandrel 20 which supports the wire
receiving spool.
reel upon which the. barbed wire is spooled. .
The spooling and twisting
head i2, an axially retractable head if! and a
chine consists essentially of a rotary ?yer frame
which houses a revolving reel-carrying unit and
A latch plate 22 is pivotallymounted 0n the
outer rail surface of the ?yer casting 2. Retract
able reel head l8 has rigidly a?ixed thereto a
a ~ traversing. guide sheave.
shaft portion 24 which is rotatively supported
mechanism of a conventional barbed wire ma
The reel-carrying
unit is made up of a ?xed revolving head mounted 15 within ?yer casting 2 by means of a bushing 26.
Bushing 26 has a sliding ?t within ?yer casting
by means of a short Shaft projecting therefrom
2. A shoulder segment 58 is formed by providing
to the inner side rail of the flyer frame and an
the outer end of bushing 26 with a reduced diam
axially retractable head removably mounted on
eter portion 28. Reduced portion 28 projects
the opposite rail of the flyer frame. A mandrel,
for supporting the wire reel upon which the 20 beyond the ?yer frame rail when the retractable
reel head I8 is in normal closed position. A pull
barbedwire is spooled, is mounted between the
out handle 30 is provided on the outer extremity
two heads with its ends resting in slots provided
of bushing 26. A circumferential groove 32 is
in the respective heads.
provided in bushing 26 at a point approximately
In order to remove a loaded reel of barbed
wire from the reel-carrying unit, it is necessary 25 midway between its ends. Bushing 26 is held in
position on shaft 24 by means vof a washer 34
to move the’axially retractable head away from
and a cap screw 36. Latch plate 22 is pivotally
the end of the mandrel thus allowing the man
secured to ?yer casting 2 by means of a cap screw
drel with its loaded reel of barbed wire to fall
38. Latch plate 22 is drilled out at point 40 to
to the floor below the machine;
receive a lock bolt 42 and a compression spring
An object of our invention is to provide alatch
which will hold the retractable head of the reel 30 44 which ?ts over the smaller diameter portion
carrying unit of a rotary ?yer frame securely in
46 of bolt 42. Lock bolt 42 is threaded as at 48
position while barbed'wire is being reeled thereon
on one end to enable the a?ixing thereto of a
and which permits the head to be removed with
handle 50 after ‘bolt 42 and compression spring
ease so that the reeled barbed wire may be
44 havebeen inserted within'hole 40.- Although
we have :shown bolt 42 as being contained within
speedily unloaded
’This and other objects will be more apparent
latch plate 22 in hole 40, it will be noted that
after referring to the following speci?cation and
attached drawings,‘ in which:
the bolt may be mounted on the surface of the
latch’ plate if desired.‘ The latch '22 is slotted
out at points 52 and 54 for the reception of the
Figure 1 is a plan view showing the invention
installed on the rotary ?yer frame of a barbed 40 reduced end portion 28 of bushing 25 within slot
wire machine;
Figure 2 is an enlarged detail plan view partly
in section;
52 and a projection, which we have shown as a
cap screw 56, within slot 54 when head [8 is in the
closed position as indicated by the solid lines in
Figure 3 is a front elevational view; and
Figures 1 and 2. The cap screw 56 serves as a
Figure 4 is a sectional view taken on the line 45 locking post inasmuch as lock bolt 42 holds the
IV-IV of Figure 3.
latch 22 in the closed position when released
Referring more speci?cally to the drawings,
and allowed to slip into position behind cap screw
reference numeral, 2 indicates a barbed wire ma
5'6 and across slot 54. When the latch plate 22
chine rotary ?yer frame casting, housing a re
volving reel-carrying unit 4, and a traversing 50 is in locked position slot 52 receives the reduced
outer end of bushing 26 thus allowing the inner
guide sheave 6. The ?yer frame 2 is supported at
of the latch plate to bear against shoulder
one end by a hollow trunnion (not shown) and
segment 28 to hold bushing 26 in closed position
at its opposite end by a drive shaft 8. Drive
and thereby hold retractable head IS in closed shaft 8 is rigidly ?xed to frame '2 and imparts
rotary motion to the frame by a suitable belt and 55 position.
In operation, to move reel head l8 to the open
position, as shown in dotted lines in Figures 2
and 4, it is only necessary to move locking bolt
42 to the left by means ofhandle 5B and thus
allow the pivotally mounted latch plate 22 to
swing downwardly about the cap screw 38. The
removal of latch plate 22 frees bushing 26 so
that the operator can then withdraw it outwardly
by means of handle 30: and thus withdraw head
18 from the mandrel 20 carrying the loaded
barbed wire reel. When the latch plate 22 is
swung to the open or downwardly projecting
position, and bushing 26 is withdrawn to open
position by means of handle 38, an arm segment
60, which is an integral part of the pivoted end
of latch plate 22, will drop into- the peripheral
3. The improvement as de?ned by claim 1
characterized by said locking means compris
ing a spring loaded bolt slidingly mounted on
said latch plate, said spring loaded bolt being
adapted to engage said projection when the latch
plate is in closed position, and a handle carried
by said bolt for retracting the same.
4. The improvement as de?ned in claim 1
characterized by said bushing having a circum
ferential groove around the surface thereof in
termediate its ends, a handle projecting from
said bushing for moving the same inwardly and
outwardly from, said hole, and said latch plate
having a locking arm projecting upwardly from
the pivoted end thereof, said locking arm coop
erating with the circumferential groove in said
groove 32 of bushing 26 to lock itin open posi
bushing to lock the bushing in open position
when the latch plate is swung into open posi
tion and thus hold reel head I8 in the open or
retracted position until an empty mandrel and
5. Mechanism for locking the reel-supporting
wire reel are positioned’ between the reel heads. 20
bushing- reciprocable'in a hole through the side
After the mandrel and empty reel. have been
positioned within the. flyer frame, reel head 18 is
rail of a rotary‘ ?yer frame, said mechanism com-.
prising a projection onv the outer surface of said‘
locked in the closed: position by moving latch
?yer frame rail adjacent said bushing, a, re,-v
plate 22 upwardly for clockwise about cap, screw
duced. outer end on said bashing projecting be
38., by means of a, handle 82.. ‘This movement i
yond the fiyer frame forming a shoulder, said
frees bushing 28 ‘from the locking arm segment
bushing having a circumferential groove around
W. and allows it to slide into. closed position and
the surface thereof intermediate its ends, a ham
thereby slide reel ‘head it into. closed operating
dle projecting upwardly from said bushing for
position. Thus, when spring ioaded lock bolt
42 snaps into position behind. cap. screw 5'5, the » moving the, same inwardly and outwardly. from
said. hole, an elongated latch plate pivotally
inner surface of latch plate 22', hearing against
mounted on the outer surface of said‘?yer frame
theshoulder segment :58. of bushing 26', will posq
rail adjacent the bushing, said‘ latch plate being_
itively hold reel- head‘ 18 in ‘the closed posi
adapted to be swung into closed‘ position spank
While one embodiment. of our invention ‘has
ning. said hole, to hold said. bushing therein, said
been shown and described, it will be apparent
that other adaptations and modi?cations may
be made without departing from the scope of
the following claims.
We claim:
1. Mechanism for Blocking the reel-supporting
bushing reciprocabl'e
a hole through- the side
rail of a rotary ‘flyer frame, said mechanism’ com
latch plate having. slots along one edge thereof
for receiving said projection and said, reduced:
end when the latch plate, is swung into closed
position, manually operable locking. means. car:
' prising a projection on the outer surface of said‘
ried by said latch plate, said locking meansicomr
prising; a spring loadedbolt slidingly. mounted
on saidrlatch plate, said spring loadedv bolt being
adapted to engage said projection whenvrthe latch.
plate is in closed position, a handle carried. by
fiyer frame rail adjacent said bushing, a reduced
outer end on saidv bush-ing projecting beyond the
said bolt for retracting the same, and a locking‘
frame forming a shoulder, an elongated’
latch plate- pivo'tally mounted on the’ outer sur
of. said latch plate, said‘ locking arm cooperating '
face of said flyer frame rail‘ adjacent the bush
ing, said latch plate ‘being adapted to be swung
into closed position- spanning said hole to hold
said bushing therein, said. latch (plate having a
slot adapted to receive said reduced end- when
said latch plate is in closed position, and manuallyoperable locking
carried by said latch
plate, said locking means being adapted’ to coop
erate with said projection to. locklsa‘id latch plate
in closed position.
arm- projecting upwardly from, the pivoted end
with the circumferential groove in, said bushing
to lock the bushing in open position when the
latch plate is swung intocpeh position.
sweetness QITED
file of this patent:
,2. The improvement. as, de?ned lay claim 1
characterized. by said‘ latch plate having a sec- 60 Number
ond slot adapted to. receive said projection.
The following references are-bfirec'ord in the
France __________ __ Nov. 23; 1935'
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