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Патент USA US3062481

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Nov. 6, 1962
J. P. LOOP
3,062,471
WEB WINDING APPARATUS
Filed May 25 1960
5 Sheets-Sheet 1
INVENTOR.
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James PLoop
Nov, 6, 1962
3,062,471
J. P. LOOP
WEB WINDING APPARATUS
Filed May 25, 1960
5 Sheets-Shut 2
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JamesPLoop
Nov. 6, 1962
3,062,471 ‘
J. P. LOOP
WEB WINDING APPARATUS
5 Sheets-Sheet 5
Filed May 25, 1960
INVENTOR.
James BLoop Q
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3,062,471
Patented Nov. 6, 1962
other object of the invention is to provide a wire web
or wire fabric winding apparatus having improved web
retaining means for securing the leading end of the web
to a winding mandrel and having an improved stripping
3,052,471
WEB WINDING APPARATUS
James P. Loop, Kokomo, Ind., assignor to Continental
gttzlel Corporation, Kokomo, Ind., a corporation of
or brace plate or collar which causes the web retaining
means automatically to be moved to a retracted position
n iana
Filed May 25, 1960, Ser. No. 31,723
9 Claims. (Cl. 242-81)
within the mandrel so as to clear the plate during rela
tive stripping movement between the plate and the man
drel.
The present invention relates to vapparatus having util
In accordance with the presently preferred embodiment
ity in winding wire webs or open mesh wire fabrics into 10
of the invention, a plurality of individual hooks are pivot
coils, and more particularly to highly improved appa
ally mounted in a novel but simple and sturdy manner
ratus for securing the leading ends of such webs or wire
within a longitudinally extending, radially opening slot
fabrics to coiling mandrels upon which the webs or Wire
in the mandrel and are selectively and individually mov
fabrics are wound, and for readily releasing the same
from the mandrels when the coils have been formed 15 able along the slot for longitudinal adjustment so as to
render the improved mandrel assembly and the hooks
and are stripped from the mandrels.
The present invention, as will later be apparent, is
readily suitable for use in the production of a great variety
of wire fabrics which may be comprised of a plurality
of laterally spaced, longitudinally extending line wires
that are interconnected by longitudinally spaced, laterally
extending cross wires.
readily adaptable for use in winding Wire fabric webs
having different spacings between the line wires thereof.
The individual hooks are shaped so as to provide a posi
20 tive mechanical interlocking with selected ones of the
Such fabrics may be of the rela
tively heavy welded type of the kind often used in the
reinforcement of concrete, or they may be of lighter
line wires of a wire fabric web, particularly during the
?rst revolution of the mandrel, and the hooks are so
shaped as to facilitate and make easy the release of the
hooks from the engaged wires during the stripping of
weights, whether welded or woven. Accordingly, where 25 the coiled fabric from the mandrel. The hooks are also
constructed so as to prevent undesired grasping of the
the terms “wire fabric” or “wire web” are used herein,
other line wires or the cross wires during the stripping
it is intended that the terms be interpreted broadly.
operation. Furthermore, the hooks and a stripping collar
In production, wire fabric is often formed in long webs
or brace plate of the stripping mechanism cooperate so
and those having any substantial length are commonly
wound into coils to facilitate storage, shipment and ban 30 as to avoid interference therebetween during the strip
dling. Such coiling is usually accomplished by winding
the web about a rotatable mandrel having means associ
ping operation and during the subsequent reconditioning
of the stripping mechanism preparatory to another wind
ing operation. Although the hooks remain in their ad
justed positions longitudinally of the mandrel during the
ated therewith for securing the leading end or leading
edge of the web to the mandrel preparatory to the coiling
or winding operation, and having means for stripping the 35 entirety of a Winding and stripping sequence, the hooks
are radially displaceable with respect to the mandrel from
coiled fabric web from the mandrel following the winding
an extended or exposed position, wherein the hooks project
operation. One of the Web securing means heretofore
used with such mandrels has been a more or less unitary
hook bar that has been slidably received in a longitudi
nally extending slot in the cylindrical surface of the man
drel, the bar being provided with ?xed hooks for grasping
the endmost cross wire of the Web.
While web retaining
hook bars of the kind just mentioned have been widely
used, they have had serious disadvantages. Inasmuch as
the hooks of such a retaining bar have been in engage
outwardly for engagement with the line Wires, to a re
tracted position wherein they lie substantially within the
slot of the mandrel so as to clear the wires of the roll or"
coil of the wire fabric or web during thestripping oper-'
ation. The extension and retraction of the hooks is auto~
matic and fool-proof for all practical purposes and does
not require the attention of an operator.
It is a still further object of the invention to provide
bar ‘he slipped longitudinally out of its slot in the mandrel
as the ?nished coil or roll is stripped from the mandrel.
Thus, every time a ?nished coil has been stripped from
a mandrel, it has been necessary to replace the hook bar
in the mandrel preparatory to another winding operation.
improved apparatus of the character described above,
and having various of the advantages speci?ed above
while being rugged in construction, ef?cient and reliaa
ble in operation, and inexpensive to manufacture.
‘Further features of the invention pertain to the par-~
ticular arrangement of the elements of the wire fabric
coiling apparatus, whereby the above outlined and addi
This has required time consuming handling of the hook
tional features thereof are attained.
ment with the inner part of a ?nished coil at the time the
coil is completed, it has been necessary that the entire
bar and has exposed the hook bar to possible ‘damage ..
'
The invention, both as to its organization and method
each time a stripping operation has taken place. Further
of operation, together with further objects and advantages
more, the ?xed hooks of the hook bar have often inter
fered with the line wires of the web when the line wires
were of certain spacings, and in some cases, particularly
where the cross wire engaged by the hooks of the bar
thereof, will best be understood by reference to the fol;
‘lowing speci?cation, taken in connection with the accom
has been of smaller gauge than the line wires, objection;
able deformation of the web or fabric has taken place.
One of the important objects of the present invention
is to provide a highly improved web retaining and han
ing apparatus incorporating the present invention, the
panying drawings, in which:
‘
FIG. 1 is a front elevational view of wire fabric coil
apparatus being of a type which includes a double man?
drel that is shown in fabric Winding position;
dling apparatus which overcomes or avoids all of the
‘FIG. 2 is a similar view of the same apparatus but
showing the double or divided mandrel withdrawn in a
disadvantages of the prior devices just mentioned. An~
stripping operation, hydraulic apparatus for operating
the double mandrel being schematically represented;
other object of the invention is to provide improved means
FIG. 3 is a cross-sectional view, on a slightly enlarged
for releasably securing wire fabric to a fabric coiling
scale, taken in the direction of the arrows along the line
mandrel, which means permits the stripping of coiled
fabric from the mandrel without interference and is in 70 3-3 of FIG. 1;
FIG. 4 is an enlarged cross-sectional view taken in
stantly available for a succeeding fabric coiling operation
the direction of the arrows along the line 4—4 of FIG. 2;
upon completion of the stripping operation. Yet an
8,062,471
FIG. 5 is a fragmentary cross-sectional view, on an
The two pedestals 23 and 26, with their respective
enlarged scale, taken in the direction of the arrows along
the line 5-—5 of FIG. 3;
FIG. 6 is a greatly enlarged cross-sectional view taken
substantially along the line 6——6 in FIG. 1, showing the
relative disposition of the leading end of a Wire fabric
web and the web retaining means during the ?rst revolu
tion of the mandrel following the securing of the end
mandrel halves 25 and 27 and other associated appa
ratus, may be caused to slide toward and away from
each other by the operation of pneumatic or hydraulic
apparatus of the general kind schematically illustrated
in FIG. 2. This apparatus is shown as including cylind
ers 34, cooperating pistons 35, and piston rods 36 that
are connecting to the respective pedestals. It will be
of the web to the mandrel;
apparent that a suitable ?uid entering the inner 01‘
FIG. 7 is a fragmentary plan view of the web and 10 facing ends of the cylinders under pressure will cause
mandrel as seen substantially from the position of the
the pistons 35 to move outwardly and the pedestals 23
line 7—7 in FIG. 6;
and 26 to move away from each other. Such ?uid flow
is indicated by :the arrows in FIG. 2. It will also be
apparent that ?uid flow in the direction opposite the
cross-sectional views taken longitudinally along the hook
retaining slot of the mandrel and showing one of the 15 arrows in FIG. 2, namely ?uid flow into the outer ends
of the cylinders and out of the inner or facing ends of
fabric engaging hooks in various operating positions,
the cylinders, will cause movement of the pedestals to
FIG. 8 showing the hook in its normal extended position,
ward each other. During such movement the sprockets
FIG. 9 showing its position as it is about to receive a
30 will slide along the spline shaft 31.
line wire of a wire fabric web, FIG. 10 showing the line
Through these means the facing ends of the mandrels
wire in its retained position during the ?rst revolution
25 and 27 may be brought into engagement as shown
of the mandrel, ‘FIG. 11 showing the hook in the position
in FIG. 1 and may be withdrawn outwardly beyond
it occupies during the second and subsequent revolutions
respective cooperating brace plates or stripping collars
of the mandrel, and FIG. 12 showing the hook in recessed
38 and 39. These particular collars may be ?xedly
position within the slot as the hook clears one of the line
wires during the stripping of the Web roll from the 25 supported on the base 20‘ by any suitable form of frame
FIGS. 8 to 12 are a sequence of enlarged fragmentary
mandrel;
FIG. 13 is a generally schematic elevational view of a
wire fabric web coiling apparatus of another type in
corporating the present invention, the apparatus being
of a single mandrel type in which the ?nished coil is
pushed from a free end of the mandrel during the strip
ping operation, as indicated by the broken lines in the
view; and
FIG. 14 is a fragmentary top plan view of the ap
paratus of FIG. 13, showing by broken lines the man 35
ner in which the apparatus may be rotated about a verti
work generally designated by the numeral 40.
The
collars 38 and 39 closely encircle the respective man
drel halves 25 and 27, as illustrated in FIG. 5, whereby
they effectively serve to strip coiled wire fabric from
the mandrel halves as the mandrel halves are moved
from the positions of FIG. 1 to the positions of FIG. 2.
A fabric supporting rack or table, generally designated
by the numeral 41, is provided below the ‘double man
drel 25, 27 and this table may include bars or rails
42 extending in the direction of fabric movement. It
is intended that wire fabric 24 (FIG. 3) be fed along
the rack 41 to the coiling apparatus such that the for
cal axis so that the ?nished roll, when stripped from the
ward end of the fabric may be releasably secured to
mandrel, may be deposited on a conveniently disposed
the double mandrel and subsequently coiled thereon. As
conveyor or the like (not shown), by means of which 40 indicated above, the present invention concerns a novel
the roll may be carried away.
form of apparatus for releasably securing the wire fabric
The details of construction by which the mandrels of
to the mandrels, and to the cooperation of such appa
the two types of machines illustrated in the drawings
ratus with various elements of the basic fabric coiling
are supported and driven are not, of themselves, a part
apparatus, all as described immediately below.
of the present invention. These details have according
The apparatus for releasably securing the wire fabric
l-y been illustrated in a largely schematic fashion inas
24 to the mandrels includes a plurality of books 51, as
much as both types of machines, broadly speaking, are
sociated springs 52 and associated hook supports or
well known to those skilled in the art. Referring ?rst
mounts 53. These devices are received within axially ex
to the double mandrel type machine seen in FIGS. 1 and
tending slots 54 in the vmandrels 25 and 27. The slots
2,. the machine may be suitably mounted upon a concrete
are of T-shape cross section, with the base or narrow
base 20 that is provided with a longitudinally extending
portion of the T opening to the cylindrical surface of
recess or well Zita, within which there are mounted, in
any suitable fashion, two pairs of parallel ways 21 and
21a (see FIGS. 2 and 4). The pair of ways 21 are lo
the mandrel. The two mandrel halves 25 and 27 are
angularly‘ oriented so that the slots 54 therein are sub
stantially aligned.
cated at one end of the well 20a and the ways 21a are 55
Each of the hook supports 53 comprises ‘an inter
located at the other end, as indicated in FIG. 2. Co
gral or single-piece, inverted T-shaped block having
perating slides 22 slidably rest upon the ways 21 and sup
cross-sectional dimensions that are slightly less than the
cross-sectional dimensions of the slots 54 so that they
supports one mandrel half 25. Similar slides slidably
may be slidably received therein. The lower portion
rest on the ways 21a and support an upright pedestal 26 60 56 of each block is of such width and thickness that it
which rotatably supports the other mandrel half 27 in
substantially ?lls the inner, wide portion 54a of the
axial alignment with the mandrel half 25. It should
slot 54, whereas the upper portion 55 of each block
thus be ‘understood that the two pedestals may be moved
is narrower and is of a width such that it may ?t within
toward each other on their respective ways so as to
the outer, narrow portion 54b of the slot 54. It will
bring together the free ends of the axially ‘aligned man
be apparent that each hook support 53, when disposed
drel halves 25 and 27, as in FIG. 1, or they may be
within a slot 54, cannot be removed from the slot ex
moved apart to the position shown in FIG. 2 to retract
cept by axial sliding movement along the length of the
slot.
or separate the mandrel halves. Both of the mandrel
portions 25 and 27 are driven by chains 28 which en
It is intended that each hook support 53 ?t freely with
gage sprockets 29, secured to the respective mandrels, 70 in its slot 54 so that it may be adjustably positioned
and sprockets 30 which may be slidably mounted on a
axially of the associated mandrel by sliding ‘movement
common spline shaft 311. This shaft is rotatively sup
along the slot. Each hook support is releasably secured
ported in any suitable manner on the base 20 and may
in adjusted position by a pair of set screws 57 and 58
be driven by a single motor 32. The motor maybe
which are threaded through [the support 53 and bear
mounted on the base 20 in any suitable fashion.
75 against the bottom wall of the slot 54, as seen in FIG. 8.
port an upstanding pedestal 23 which, in turn, rotatably
3,062,471
5
The left hand end of the upper portion 55 of each
book support (as viewed in FIG. 8) is provided with a
projecting nose portion 55a, the underside of which has
thereon a sloping stop surface 5517 that extends down
wardly toward the adjacent junction of the two block
portions 55 and 56. At this junction the immediately
adjacent portions of the block are milled out or other
wise cnt away to form a partial cylindrical bore 59 hav
6
phantom line 63a in FIG. 10. The angle of this slope
with respect to the horizontal or with respect to the axis
of the mandrel may, for example, be on the order of from
2 to 4 degrees, it being understood that the precise angu
larity is not critical. By virtue of this sloping orientation
of the surface 63 when the ?nger or hook 51 is in its fully
extended position, the outward force of the line wire
24a, resulting from its resistance to coiling, causes the wire
ing one open side and having an axis disposed trans
to seek the left hand or closed end of the recess 62 during
in the partial bore 59 there is a partial, laterally extend~
ing cylindrical body 64} forming the right hand end
of the associated hook 51, whereby the hook is pivotally
serves the important purpose of tending to prevent any
line wire from becoming freed from its hook.
After the completion of one revolution of the mandrel,
mounted on the hook support 53.
a continuation of the same line wire overlies the hook 51
versely of the T-shaped slot 54. Rotatably arranged with 10 the ?rst complete revolution of the mandrel and thus
It should be noted
that the body of the hook support 53 extends substan 15 and tends to cause inward pivotal movement of the hook
to the position illustrated in FIG. 11 wherein the wire
tially more than 180° about the center of the bore 59,
portion grasped by the hook bears against the outer cylin
whereby the cylindrical body 60 cannot escape therefrom
drical surface of the mandrel and prevents further in
through the open side of the bore. It should also be
ward pivotal movement of the hook. In this position of
noted that the cylindrical body 60 extends about an even
the hook 51, the plane of the surface 63 of the hook pref
greater angle before merging into adjacent shoulders,
erably is disposed approximately in a horizontal position
whereby pivotable movement of the hook 51 with respect
or parallel to the axis of the mandrel, as indicated by the
to the hook support 53 is permitted. The entire body of
phantom line 63a in FIG. 11.
the hook 51 may be of substantially the same width
After the desired length of wire fabric has been coiled
as the upper portion 55 of the hook support 53, where
by the hook 51 may pivot freely within the slot 54. Each 25 about the two piece mandrel and has been severed and
the formed coil 24b has been tied, the two mandrel por
hook 51 is assembled with its corresponding block or
hook support 53 simply by sliding the cylindrical body
tions 25 and 27 may be drawn apart in the manner pre
portion 60 endwise into the bore 59 of the block before
the block is slipped into an end of the slot 54. There
after, the walls of the upper portion of the slot retain
the hook ‘against lateral movement within the bore 59.
The leaf spring 52, shown secured to the hook 51 by
viously described to release the coil of fabric. During
the initial portion of this stripping operation, the wire
a pair of screws 61, is of such form as to bear resiliently
portions received within the several recesses 62 of the
hooks 51 are readily extracted therefrom by virtue of
the fact that the hook surfaces 63 are at that time all dis
posed in a plane substantially parallel to the axis of the
mandrel, thereby having little tendency to drag the inner
against the bottom wall of the slot 54 and bias the free
end of the hook 51 upwardly and out of the slot 54. In 35 most convolutions of the line wires along the mandrel.
this position the upper surface of the hook 51 adjacent
the pivoted end thereof bears against the stop surface 55b
The initial stripping movement is further facilitated by
the fact that the uppermost surface 64 of each hook 51,
upon which the second convolution bears (see FIG. 11),
of the nose 550 at the left hand end of the upper portion
is planar and is disposed at an acute angle with respect to
55 of the hook support block 53, as shown in FIG. 8.
This is the normal position of the hook; and in this posi 40 the plane of the surfaces 63. Thus, the free end of the
line wire grasping portion of each hook 51 is slightly
tion, the exposed hook may grasp a line wire 24a of the
wedge shaped so that it may readily be withdrawn from
wire fabric 24 which is to be coiled about the mandrels.
between the ?rst and second convolutions of the line wire
Where a double mandrel is employed, as in the embodi
when the associated mandrel portion is withdrawn in the
ment of the invention presently being described, the wire
recesses 62 de?ned by generally U-shaped portions of the 45 direction of the arrow in FIG. 12. Furthermore, it should
also be noted that the disposition of the line wire receiv
hooks 51 are arranged to open toward the joint in the
ing recesses 62 with respect to the pivotal axes of their.
mandrel, as is clearly shown in FIG. 1. The leading edge
respective hook members 51 also facilitates the disenof the wire fabric 24 lying on the table 41 may be raised
gagement of the hooks from the innermost convolutions
manually or by suitable machinery against the surface of
the two piece mandrel when the mandrel is closed. The 50 of the line wires 24a. ‘In this regard it is pointed out
that the mouth of the wire receiving recess 62 of each
two mandrel halves may then be opened slightly and there
hook 51 opens not only in the direction opposite the direc
after returned toward each other to their fully closed
tion of stripping movement of the mandrel (that is, oppo
or contacting position, this action causing the hooks 51 to
site the direction of the arrow in FIG. 12), but also the
receive and grasp a number of line wires 24a of the wire
fabric. It will be appreciated, of course, that the various 55 mouth opens toward the axis about which the hook pivots.
Thus, in FIGS. 8 to 12 it will be observed that the mouth
hook supports 53 will have been selectively positioned
of the wire receiving recess 62 faces in the direction to
along the length of the mandrel such that the various
ward the cylindrical body 60 about the axis of which the
hooks 51 are positioned to receive selected ones of the
entire hook element 51 pivots, and the mouth is also
line wires of the particular wire fabric to be coiled. The
above that axis. This particular relationship is of im
hooks are, in other words, positioned to cooperate with
portance and provides an important improvement espe‘
the line wire spacing of the particular wire fabric to be
cially when heavy gauge wire fabric is being wound, for
coiled.
if the walls of the recess 62 tend to bind upon the inner
In FIG. 9 a line wire 24a of the wire fabric is shown
most convolution of the line wire 24a as the stripping be
about to be received in the hook recess 62, and in FIG.
gins, the free end of the hook unit 51 (the left end as
10 the same line wire is shown received within the hook
viewed in FIG. 11) tends to be pivoted upwardly to re
recess. During the initial portion of the fabric coiling
lieve the grip of the recess on that convolution and avoid
operation the hooks 51 are pivoted outwardly to their
all tendency to bind or force the innermost convolution
normal positions by the resistance of the wire fabric to
against the mandrel surface. This further insures that the
the coiling thereof and by the action of the springs 52.
Preferably the hooks 51 are identical to each other and
innermost convolution of each line wire 24a will be clean
are so dimensioned and shaped that, when the body of
ly released as the stripping of the formed coil from the
mandrel begins.
a hook 51 is in contact with the stop surface 55b of its
hook support 53, as shown in FIGS. 8 and 1-0, the over
hanging upper inner planar surface 63 of the hook recess
62 slopes downwardly to the right as indicated by the
As the‘stripping operation continues, a sloping surface
65, de?ning the left hand end of the hook as viewed in
FIG. 11, engages successive line wires 24a of the wire
3,062,471
7
fabric whereby the hook is cammed successively down~
wardly into the slot 54 (see FIG. 12) by the successive
line wires to permit relative movement of the line wires
past the hook. Accordingly, the hooks 51. in no Way inter
fere with the stripping of the coiled wire fabric from the
associated mandrel. Neither does the stripping operation
place any undesired stress on either the hooks or the
wire fabric. It should be noted that the inner or left
mandrel. Preferably a receiving bed or rack (not shown)
is arranged to receive the coil of wire fabric as it is
stripped from the mandrel.
In this latter form of apparatus for coiling wire fabric,
the means for releasably securing the line wires at the
leading end of the fabric to the mandrel may be substan
tially identical to that described above. A slot 81 is pref
erably provided in the mandrel 75, which slot may be
identical to the slot 54 of the ?rst described apparatus.
hand end of the sloping surface 65 always lies within the
slot 54, below the cylindrical outer surface of the associ 10 It will be noted in FIG. 13 that all of the hooks 51 are
ated mandrel, whereby a line wire moving relatively past
so arranged that the recesses 62 thereof open to the right,
a hook 51 must always engage the sloping surface 65.
As the mandrel portions 25 and 27 are thus Withdrawn
in the direction of relative stripping movement of the coil
of wire fabric. The stripping collar 78 may be seen in
in a stripping operation, they are drawn freely through
FIG. 13 to include a bell 78a identical to the bells 38a
axial openings in the respective collars or brace plates 38 15 and 39a of the ?rst described apparatus.
and 39, these collars preventing movement of the coiled
Wire fabric with either of the mandrel portions and there
by assuring the stripping of the wire fabric therefrom.
As the successive hooks 51 reach the stripping collar of
the associated mandrel portion, the sloping surfaces 65
of the hooks successively come into contact with the
mouths 33b and 39b of the axial openings in the plates
or stripping collars, thereby progressively depressing the
hooks 51 to clear the plates as they pass therethrough to
the left, for example, as viewed in FIG. 5.
After the coiled Wire fabric has been stripped from the
mandrel and removed from the coiling station, the man
drel portions 25 and 27 are moved back toward each
Means have now been described for releasably secur
ing wire fabric to the mandrel of apparatus for coiling
wire fabric, which means in no way interfere with the
stripping of a coil of wire fabric from the mandrel, and
are immediately available for a succeeding coiling opera
tion upon completion of a stripping operation. It has
been shown that the line wires of the fabric interlock
with the hooks during the initial portion of the coiling
operation but are freely withdrawn from the hooks dur
ing the stripping operation by virtue of the orientation of
the hook surface 63 and the fact that the hooks are per
mitted to pivot outwardly of the associated mandrel sub
stantially beyond the minimum distance required for en
other in preparation for another coiling operation. As
gaging and grasping the line wires.
the successive hooks 51 reach the associated stripping col 30
It should be noted that the hooks are so oriented as
to engage line wires rather than cross wires. This ar
lar 38 or 39 they engage a cam member or bell 38a or
39a which are respectively secured to and form a part of
the two stripping collars. As is clearly indicated in FIG.
5 the bell 38a, like the bell 39a, cams the successive hooks
inwardly so that they may pass by the narrow neck por
tion of the collar without interference. When the man
drel portions have been returned substantially to abutting
position, the apparatus is in readiness for the next coiling
operation.
In FIGS. 13 and 14 a somewhat different type of ap
paratus is shown by way of ilustrating the ?exibility of the
fabric securing means and its cooperation with the fabric
coiling apparatus. In this embodiment of the invention
a single pedestal 71 is mounted on a base 70 for pivotal
movement about the axis of a vertical shaft 72. Pivotal
movement of the pedestal may be controlled by a rack 73
and gear 74, the gear being secured to the shaft 72 which
is, in turn, secured to the pedestal 71.
The pedestal rotatably supports a mandrel 75 that is
driven by an electric motor 76 through chain and sprocket '
rangement is preferred since the line wires of a wire
fabric are frequently of heavier gauge than the cross
wires and accordingly are better able to withstand the
holding forces required for the winding operation.
The apparatus for releasably securing the wire fabric
to the mandrel may be used with existing fabric coiling
apparatus, provided only that the mandrel be slotted to
receive the hooks and hook supports. It is also desirable
that the stripping collar or collars be provided with suit
able means for camming the hooks inwardly during re
turn relative movement of the mandrel and associated
stripping collar.
The hooks 51 disclosed herein have wire receiving
recesses opening in a direction generally toward the
pivotal axes thereof, the advantages of this arrangement
having been described above. It will be apparent, how
ever, that these recesses may open in the opposite di
rection, as long as they open in the direction of relative
means generally designated 77, the motor 76 being
coil stripping movement of the associated collar, and
provided the fabric being wound is of sufficiently light
mounted on the pedestal 71. A stripping collar 78 en
circles the mandrel 75 and is arranged to be moved ax
gauge to avoid any substantial tendency of the innermost
convolutions of the line wires to be bound in the recesses
ially thereof, between the positions illustrated by solid
lines and phantom lines in FIG. 13, by pneumatic ap
paratus generally designated 79. When the stripping
collar 78 is in the position illustrated by solid lines in
FIG. 13, and when the mandrel 75 is in the position illus
trated by solid lines in FIG. 14, the apparatus is in condi
62, against the surface of the mandrel by the compressive
forces of the second and succeeding convolutions. The
illustrated embodiment is preferred since it permits the
desired changing orientation of the hook surface 63 de
scribed above, and the relationship between the mouth
of the wire receiving recess and the pivotal axis of the
tion for the ceiling of wire fabric thereon. After com 60 ?nger unit insures a clean release of the innermost con
volutions of the line wires of the fabric even when heavy
pletion of a coiling operation and severance of the wire
gauge material is ‘being wound. The illustrated pivotal
fabric, the rack and gear 73 and 74 may be operated to
connection between the hooks and hook supports is pre
pivot the mandrel to the position illustrated by the phan
ferred in the interest of simplicity and economy. It will
tom lines in FIG. 14. It will of course be appreciated
by those skilled in the art that during the coiling oper 65 be apparent that these and other features of the appa
ation the right hand end of the mandrel may be sup
ratus described above may be substantially modi?ed
ported by a readily opened bearing, not shown in the
without departure from the spirit of the invention.
drawing. Opening of this bearing and pivotal movement
Accordingly, while there has been described what is
of the mandrel to the position illustrated by phantom
at present considered to be the preferred embodiment of
lines in FIG. 14 frees the right hand end of the mandrel 70 the invention, it will ‘be understood that various modi?
from obstruction so that the coil of wire fabric may be
stripped therefrom.
The pneumatic apparatus 79 is then actuated to drive
the stripping collar 78 along the mandre 75 from left to
right to strip or push the coil 80 of wire fabric from the
cations may be made therein, and it is intended to cover
in the appended claims all such modi?cations as fall
within the true spirit and scope of the invention.
I claim:
1. Apparatus for winding an open mesh wire web into
3,062,471
a coil, comprising a winding mandrel having a longitudi
nally extending open slot in a winding surface thereof,
means for rotating said mandrel, a plurality of longi
operative winding positions in which they project out
of said mandrel, said hooks being pivotable outwardly
outermost engaging position in which they project fully
wardly from said mandrel and retracted positions in
which they are recessed in said mandrel, a stop for each
of said hooks mounted on said mandrel for limiting the
tudinally spaced hooks pivotally mounted within said slot,
movement of said hooks outwardly beyond said opera
and means for selectively adjusting the position of each
tive position, each of said hooks having a ?nger thereon
of said hooks longitudinally of said slot and independ
projecting toward an end of the mandrel and under which
ently of the others of said hooks, each of said hooks
?nger a wire of the fabric is adapted to be received when
having a wire receiving recess therein opening toward an
said hook is in its said operative position, each of said
end of said mandrel, each of said hooks being pivotable
with respect to said mandrel between an extended posi 10 ?ngers having a wire engaging surface on its underside
which extends generally parallel to the axis of said man
tion wherein wires of the web may be respectively re
drel but slopes toward said mandrel and toward the free
ceived within the wire receiving recesses of said hooks
end of said ?nger when said hook is in operative posi
and a recessed position wherein said hooks will clear
tion and in engagement with its said stop, the slope of
said wires to permit relative axial movement between
said mandrel and a coil of the web wound thereabout.
15 said surfaces on said undersides of said ?ngers serving
to prevent the wires of said fabric from slipping from
2. In apparatus for coiling wire fabric including a
beneath said ?ngers when said hooks are in engagement
mandrel defining a generally cylindrical surface and hav
ing an axially extending slot opening to said cylindrical
with said stops.
6. The combination set forth in claim 5, wherein said
surface, the combination comprising: means for rotating
said mandrel to wind thereon a coil of the wire fabric, 20 ?nger of each hook projects generally toward the axis
of pivotation about which the hook is pivoted.
a collar adjacent an end of said mandrel, means for pro
7. The combination set forth in claim 5, wherein said
ducing relative axial movement between said mandrel
?nger of each hook is wedge-shaped and has an outer
and said collar to strip the coil of fabric off of said
surface which slopes toward said mandrel at all times
mandrel in an axial direction, and means for releasably
securing the leading end of the wire fabric to said man 25 when a wire of said fabric is beneath said ?nger.
8. In a reel for winding wire ‘fabric, a winding man
drel during winding, said securing means comprising a
drel, a plurality of anchoring hooks arranged at spaced
plurality of hooks for grasping wires of the fabric, a plu
intervals along the length of said mandrel for winding
rality of hook support members adjustably positionable
engagement with fabric to be wound, means mounting
and releasably securable within said axially extending
slot, said hooks being supported by said support mem 30 said hooks on said mandrel for pivotal movement re
spectively about spaced parallel axes extending trans
bers and pivotable with respect thereto about axes per
versely with respect to the axis of said mandrel between
pendicular to a plane de?ned by said slot and the axis
outwardly from said mandrel and operative winding po
of said slot in position to grasp wires of said fabric and
being receivable substantially entirely within said slot to 35 sitions in which they project partially outwardly from said
mandrel and retracted positions in which they are re
permit axial movement of said fabric and said collar
cessed in said mandrel, a stop for each of said hooks
thereover, and spring means urging said hooks outwardly
mounted on said mandrel for establishing the outermost
of said slots, each of said hooks de?ning a wire receiving
engaging position of said hooks, each of said hooks hav
recess opening in the direction of relative mandrel strip
ping movement of said collar and having an edge op 40 ing a ?nger thereon projecting toward one end of said
mandrel and under which ?nger a wire of the fabric is
posite said recess opening so oriented that engagement of
adapted to be received when said hook is in its said en
said collar and wire fabric by said edge cams said hook
gaging position, each of said ?ngers having a wire en
inward of said slot, said collar including a bell ?aring
gaging surface on its underside for pressing an engaged
outwardly in the direction opposite to relative mandrel
stripping movement of said collar for engaging said hooks 45 wire toward the surface of said mandrel when said hook
is in its said operative winding position, said wire en
during relative return movement of said collar and cam
ming said hooks inwardly of said slot.
3. The combination set forth in claim 2, wherein each
of said hook support members has a shoulder limiting
pivotal movement of the associated hook outwardly of
said slot, and wherein each of said hooks has a generally
U-shaped portion de?ning a wire receiving recess open
ing generally toward the pivotal axis thereof as Well as
in the direction of relative mandrel stripping movement
of said collar, the outer arm of said U-shaped portion 55
having an inner edge lying substantially parallel to the
gaging surface being positioned longitudinally along said
mandrel away from the pivot axis of the associated hook
in a direction away from said one end of said mandrel,
whereby movement of said mandrel along the axis there
of in a direction away from said one end to move the
engaged fabric wire from under the associated ?nger
tends to pivot said hook from its said operative winding
position toward its said outermost position and its said
stop thus to move said wire engaging surface away from
the engaged wire to release the wire from said mandrel.
9. The combination set forth in claim 8, and further
comprising means resiliently biasing said hooks toward
said stops and toward said outermost engaging positions
axis of said mandrel but sloping toward said mandrel
toward the open side of said U-shaped portion when said
hook bears against said shoulder.
4. The combination set forth in claim 3, wherein the 60 and said operative winding positions, said ?nger of each
of said hooks being wedge-shaped and each having an
outer edge of the outer arm of said U-shaped portion
outer surface which slopes toward said one end of said
lies generally parallel to the axis of said mandrel but
mandrel at all times when an engaged wire is beneath
slopes toward said mandrel toward the open side of said
U-shaped portion when said hook is pivoted outwardly
of said slot.
65
5. In a reel for winding wire fabric, a winding man
drel, a plurality of anchoring hooks arranged at spaced
intervals along the length of said mandrel for Winding
engagement with fabric to be wound, means mounting
said hooks on said mandrel for pivotal movement re 70
spectively about spaced parallel axes extending trans
versely with respect to the axis of said mandrel between
said ?nger.
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,951,187
2,025,890
2,420,936
2,478,763
Dierking ____________ __ Mar. 13,
Payne ______________ __ Dec. 31,
Davis ______________ __ May 20,
Kadish _______________ __ Aug. 9,
1934
1935
1947
1949
2,971,719
Cochrane et al. _______ __ Feb. 14, 1961
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