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Патент USA US2117640

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\ May 17, 1938.
2,1 17,640
Filed NOV. 24, 1936
3 Sheets-Sheet l
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May- >I7, 1938.
Filed Nov. 24, 1936
3 Sheets-Sheet 2
May 17, 1938.
Filed Nov. 24, 1956
3 Sheets-Sheet 3
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Patented May 17, 1938
Raymond J. wenn and Donald A. McArthur.
Warren, Ohio, assignors to The Wean Engi
neering Company, Incorporated, Warren, Ohio,
a corporation of Ohio
Application November 24, 1936, Serial No. 112,551
10 Claims.
(Cl. 242-78)
'I‘his invention relates to an apparatus for coil- ,
ing and, in particular, to a device for ceiling strip
material in long lengths under substantial ten
Coiling reels as heretofore constructed have
generally consisted of a collapsible mandrel
Vmounted on a
mandrel acting
by any suitable
l() tial tension on
suitable supporting housing, the
as a cantilever, and being driven
power means to exert a substan
the material being coiled as it
issues from a rolling mill, for example. Ceiling
lreels of this type are satisfactory for smaller
widths of strip. When widths of the order of
40" or above are to be handled, however, the
'15 defiection of the free end of the `mandrel is such i
that the tension applied to the strip by the coil
ing reel is not uniform across the width of the
strip. Since the tension controls the amount of
reduction which is effected in the mill, the strip
20 is thus of non-uniform thickness.
When it is
sheared to length and further processed, this
non-uniformity introduces a longitudinal camber
into the lengths.
Our invention overcomes the aforementioned
objections to the ceiling devices as previously
constructed, and provides a device capable of
ceiling strip of any width, under the desired ten
sion, without objectionable deflection of the man
drei. In accordance with our invention, We pro
Fig. 4 is a sectional view along the line IV--IV
of Fig. 3 with parts omitted; and
tive thereto. Guides l5 extend downwardly from
the seat through suitable bearings in the base.
The vertical adjustment of the seat is accom
plished by a screw i6 threaded through a nut in 16
the base. The motor I'l drives the nut through
suitable gearing (not shown).
The mandrels il) and ll and their supports are
identical except for minor details. Each mandrel
comprises a plurality of segments i8 dovetailed to
an arbor I9 by flanges lsb, as best shown in Figs.
3 and d. The several segments it have inter
iìtting, overlapping projections or teeth lßa
whereby a substantially smooth circumference is
presented whether the segments are collapsed or 25
Cooperating inclined surfaces t@ and
2l on the segments and arbor cause the segments
to be expanded on movement of the arbor axially
3d vide a pair of axially alined mandrels, at least ` thereof.
one of which is movable toward the other. Each
mandrel has adjacent its end cooperating inter
iitting means effective when the mandrels are
abutted, to increase the resistance thereof to de
35 ñection under the coiiing load. Each mandrel is
provided with an anchor slot for receiving the
leading end of a length to be coiled, and we
provide means for driving the mandrels such
that they are always maintained in a predeter
40 mined angular relation so that the anchor slots
in the two mandrels are always in line. We also
Fig. 5 is a diagram of the driving gears.
Referring now in detail to the drawings, our
coiling reel comprises essentially a pair of axially
alined mandrels I0 and I l, mounted for advance
ment into abutting engagement and retraction,
and a lifting saddle l2 there below adapted to
receive and hold a coil when the mandrels are
withdrawn. The saddle comprises a seat I3 sup
ported on the base Hl for vertical movement rela
The dovetailed relation between the
segments and the inclined portions of the arbor 30
causes collapsing movement of the segments on
reverse movement of the arbor relative thereto.
A stop ring 2id limits axial movement of the
arbor i9 relative to the segments it.
An anchor slot 22 is formed in one of the seg
ments it for receiving the leading end of a
length of strip to be coiled.
The means supporting the mandrel for rota
tion and axial reciprocation comprises a ñxed
housing 23 secured to a base 2d resting on any
suitable foundation 25.> The housing 23 is cored,
provide means of novel construction for advanc
machined, and provided with bearings 26 at each
ing and retracting the mandrels.
end whereby to receive and support for rotation,
Further details of the invention will become ap
parent in the course of the following description, a cylinder 2l. The housing 23 includes also a
gear case 28. A driving gear 29 is disposed on
referring to the accompanying drawings. In thev the
cylinder 2l within the case 28.
piston 30 is slidable axially in the cylinder 2l
Fig. 1 is a plan view of a coiling reel in accord
but rotates therewith by reason of a feather key
ance with 'our invention;
Fig. 2 is a side elevation thereof partly broken 3l'. The piston has spaced end walls 32 and 433,
each having bearing bushings 32a and 33a spac
them from the bore of the cylinder 2l. 'I'he
Fig. 3 is a partial sectional view to enlarged
end walls 32 and 33 are connected by a cylindri
scale on the line II-III of Fig. 1;
cal wall 34 and radial webs 85.
Figure 3A is a partial sectional view taken
'I‘he cylindrical wall 34 of the piston 30 is cored
along the line IIIA-_IIIA of Figure 3; and
and machined to receive the inner end of the
arbor I9 which is secured therein by screws 33.
The arbor and the segments carried thereby are
thus caused to rotate with the piston 30 and
the cylinder 21 when the gear 29 is driven. The
a definite clearance must be provided between the
lower edge of the plate 60 and the segments I9.
Cylindrical guides 61 are mounted on the hous
ing 23 and are adapted to receive slide rods ex
inner ends of the segments I3 have outwardly ‘
tending rearwardly from the yoke 53. These
extending flanges 31 which fit loosely between the
end wall 33 of the piston 30, and a stop ring 33
secured to the inner end of the cylinder 21.
A cylinder 39 is positioned within a bore
10 through the arbor I9, bearings 40 and 4I per
mitting rotation of the arbor about the cylinder.
rods prevent rotation of the cylinder 39 as the
cylinder 21 turns.
After retraction of the mandrel, it may again
be advanced to its illustrated position by deliver
ing fluid under pressure through the pipe 53. The 10
cylinder 39 is then forced to the right and carries
The inner end of the cylinder 39 is closed by a
head 42 secured thereto in any desired manner.
A stub shaft 43 extends inwardly from the head
42, being secured therein by a lock nut 44. The
inner end of the head 42 is seated in a bearing
A tapering stud member 45 is rotatably
mounted at the inner end of the shaft 43 on a
bearing 46. The stud member 45 cooperates with
a socket member 41
similarly mounted on
the mandrel II. The segments I8 of the man
drels have conical abutting surfaces 48.
A piston 49 is supported in fixed p_osition within
the cylinder 39 on a hollow piston rod 50, the
outer end of which is anchored to a suitable abut
ment 5I (Fig. 1). A radial hole 52 in the rod
59 permits fluid to be supplied through the latter
to the space on the left-hand side of the piston
49. A pipe 53 extending through the rod 50 com
30 .municates with the space on the right-hand side
of the piston 49 through a port 54 in the latter.
The left-hand end of the cylinder 39 is closed by
a head 55 which may conveniently be bolted by
bolts 55a to a yoke 56 welded or otherwise se
cured to the cylinder 39. A packing gland
closes the space between the head 55 and the
rod 50.
When fluid under pressure is_ supplied through
the rod 50 and the hole 52,` the cylinder 39 moves
40 to the left inasmuch as the piston 49 is held sta
tionary. Leftward movement of the cylinder 39
is caused by the pressure of the fluid admitted
thereto acting on thepiston 49 and the cylinder
head 55. The stub shaft :43, being secured to the
` cylinder head 42, moves with the _cylinder 39 and
withdraws the stud member 45,4 andv with it the
arbor I9 and the piston. 39. The segments I3,
however, do not initially m'ove with the arbor I9.
Spring-pressed plungers 53 mounted in thev end
50 wall 32 of the piston 30 and extendihgthrough
holes in the other end wall 33 into‘eng'agement
with the segment flanges 31,-hold t‘he segments in
their illustrated positions until the stop ring
2Ia engages the ends’of the inclined surfaces 20.
the mandrel I0 with it until it abuts the mandrel
II in the manner indicated in Fig. 3. After the
engagement of the segment flanges 31 with the
stop ring 39, continued movement of the piston
30 expands the segments I8 and restores the
plungers 53 to their illustrated position.
The gears -29 of the two mandrels are driven by
pinions 68a, in housings 63. The pinions are con
nected by a cross shaft 39 which is, in turn,
driven by a pinion 10a enclosed in a. housing 10.
This pinion is driven by a motor 1I through a
hydraulic drive including a pump 12 and motor
13 coupled to the shaft on which the pinion is
carried. This drive permanently ties the two 25
mandrels together, and always maintains them in
predetermined angular relation, ensuring that the
anchor slots in the two mandrels will always be in
If it is desired to handle large coils, over-size 30
segments, indicated in chain lines at 14, may be
bolted to the segments I8. In this event, a ñller
block 15 is removed to permit the over-size seg
ments to be keyed to the segments I8.
It will be clear from the foregoing description
that when the mandrels I0 and II are advanced
into abutting engagement, as shown in Fig. 3,
the cooperation of the conical surfaces 48 there
of and the interfltting relation of the stud mem
ber 45 with the socket member 41 will provide a
substantially continuous beam member to with
stand the load imposed thereon by the coiling
operation. The resistance of the two mandrels
lto deflection when so united, is naturally greater
than the sum of the individual .esistances of two 45
similar mandrels supported independently as
cantilevers. The shape of the cooperating parts
of the two mandrels is such that a proper en
gagement thereof on advancement of the man
drels is assured at all times. The initial with 50
drawal of the mandrels, however, effects an im
mediate separation thereof.
The coiling apparatus described above, because
of its increased rigidity and resistance to deflec
tion, is capable of handling coils of wide strip
55 This initial movement _of the. arbor I9, while the ’ without causing an objectionable lack of uni
segments are maintained. against axial move
formity in the tension of the material being
ment, causes the latterto'be l,collapsed for easy
coiled, across the width thereof. A more uniform
withdrawal from a coil 59 'surrounding the man
drel. Thereafter, the segments I8 move with the
60 cylinder 39. and the construction‘is such that the
mandrel I9 may be entirely withdrawn from the
A stripper plate 60 is', slidably mounted on the
housing 23 by guide rods 6I traversing bearings
32. A cylinder 63 carried on the housing is pro
vided with a piston 64 having a rod 65 connected
to the plate 60. The stripper plate may be used
to hold the coil against the thrust applied to the
arbor, to withdraw the mandrel from the coil or
product is thus obtained. and all diiiiculties with
cambering of sheared lengths in subsequent 60
processing is avoided.
While we have illustrated and described here
in but a preferred embodiment of the invention,
it will be understood that changes in the con
struction disclosed may be made Within the spirit 65
of the invention and the scope of the appended
claims. ,
We claim;
1. The combination with a pair of alined, col
lapsible mandrels, and retractable means for 70
70 to “square up” the coil if the successive turns do ' rotatably supporting each mandrel, the outer ends
not f‘wrap true” thereon. A spring-pressed block
66 is movably mounted on the plate 60 and is nor
mally urged against the segments I3 to engage
the edges of the innermost turns of the coil, since
of said mandrels being adapted to abut and hav
ing mating portions, of means for locking said
mandrels in predetermined angular relation to
each other.
2,1 17,640
2. The combination with a pair of alined, col
lapsible mandrels, and retractable means for ro
tatably supporting each mandrel, the outer ends
of said mandrels being adapted to abut and hav
ing mating portions, -of mechanical means for
locking said mandrels in predetermined angular
relation to each other.
3. Coiiing apparatus comprising a pair of.
alined, collapsible mandrels, supports for said
terized by a member carried at the end of said
shaft for cooperation with a corresponding mem
ber carried by a similar mandrel in alinement
with the Erst-mentioned mandrel.
8. The apparatus deñned by claim 6 charac
terized by a second mandrel similar to the first-.
mentioned mandrel and disposed in alinement
therewith, the stub shafts of the two mandrels
having tapered stud and socket members adapted
10 mandrels at least one being movable axially there-
to engage on axial movement of one mandrel 10
of, and means for rotating -said Buppòrts includ- Y relative to the other, constituting said mandrels
ing shafting and gearing connecting the supports
and maintaining them in predetermined angular
relation to each other.
4. A coiling reel comprising two alined, col
lapsible mandrels, means supporting said man
substantially a continuous beam.
9. Ceiling apparatus comprising a pair of ax
ially alined mandrels each having a central arbor
and collapsing segments carried thereby', and 15
of the supporting means axially of the mandrels,
tapered stud and socket members carried by said
arbors for interl'itting engagement, the segments
of the mandrels also -having conical cooperating
and a common drive for rotating said supporting
drels for rotation, means for moving at least one
20 means.
5. A coiling reel comprising two alined, col
lapsible mandrels. means supporting said‘man
drels for rotation, means for moving at least one
of the supporting means axially oi.' the mandrels,
and means for rotating said supporting- means.
6. A coiling mandrel comprising a central
arbor, collapsible segments carried thereon,
means supporting the arbor as a cantilever, a
cylinder ñxed against rotation onwhich said
30 arbor is rotatable, a stub shaft projecting from
said cylinder and rigid therewith, and bearings
between the shaft and arbor permitting rotation
of the latter on the former.
'7. The apparatus defined by claim 6 charac
ill., Coiling apparatus comprising a pair of 20
f lined mandrels, means supporting at least one
oi the mandrels for axial movement whereby the
outer ends of the mandrels abut, said mandrels
having interiitting portions which, when the
mandrels are abutted, cause them to act sub 25
stantially as .a continuous beam for withstanding
the coiling load, said mandrels including a cen
trai arbor and collapsing segments carried there
by, the arbor and segments of thetwo‘mandrels
having cooperating surfaces of conical shape to 30
provide said interlitting portions.
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