(No Model.

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H. J. FRINK,
CALENDER ROLT,
No. 5ll,606, - a 7. Patented Dec. 26, 1893.

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 UNITED STATES PATENT OFFICE.
HERBERT J. FRINK, OF HOLYOKE, MASSACHUSETTS.
CAL ENDER - R O L.

SPECIFICATION forming part of Letters Patent No. 511,606, dated December 26, 1893.
Application filed April 25, 1891, serial No. 390,486, (No model.)
To all whon it may concern: C, C, being secured to the arbor at each end
Be it known that I, HERBERT.J. FRINK, of of the outer covering. In the manufacture of
Holyoke, in the county of Hampden and State such rolls the fibrous outer covering is Sub
of Massachusetts, have invented a new and
5 useful Improvement in Calender-Rolls, of jected to great pressure, in a direction paral' 55
which the following is a specification, refer lel with the axis of the arbor, and in order to
ence being had to the accompanying drawings, secure the heads C upon the arbor in such
forming part thereof. manner as to withstand the expansive action
of said covering, I have herein shown at each
This invention has for its object the con end of the arbor, beyond the outer covering,
O
Struction of a roll for calendering paper and a frusto-conical hub a' upon which are placed
Other fabrics, and relates particularly to that similariy shaped rings C to enter the conical
class of rolls composed of a metallicarbor and bore of the heads C, as clearly shown in Figs.
a homogeneous outer covering or cylinder of 1 and 2, the outer ends of said rings C" being
fibrous material. engaged by collars C* shrunk upon the arbor
In accordance there with my invention con and thereby securely held in place. So far
sists in a calender roll, consisting of an ar as this invention is concerned, however, any
bor, a series of separated rings embracing other usual means employed for holding the
said arbor
having at intervals
a spline between
and groove its endsthere
connection and device upon the arbor can be utilized. The
end pressure exerted by the heads upon the
with, the parallel surfaces of said rings hav
ing irregular projections thereon, a homogene outer covering b is not sufficient to prevent
it from turning bodily upon the arbor or hav
Olls Outer covering of fibrous material sur ing a twisting movement thereon unless other
rounding said arbor from end to end wholly means are provided, particularly in the case
inclosing said rings and extending inward be of the rolls in calendering machines where 75
tween them, and two heads secured upon said they are subjected to great strain in perform
arbor at each end of and to compress said ing their function, the covering tending to
Outer covering, said heads each having in turn or twist upon the arbor, and when this
their inner sides a depression corresponding occurs the roll is rendered useless. I have
in diameter substantially with that of said
3O rings, substantially as will be described.
herein shown convenient means for so lock
ing the said covering to the arbor that turn
Other features of my invention will be here ing or twisting thereof on the arbor is ren
inafter described and particularly pointed out
in the claim. dered absolutely impossible. In order to ac
complish this result I place a series of sepa
Referring to the drawings, in which likelet rated rings or disks d upon the arbor at in
35 ters designate like parts in the several figures, tervals between the heads C, and the said
Figure 1 is a longitudinal sectional view of a rings are securely locked both to the arbor
Calender roll embodying my invention, the and to the covering, which latter wholly in
arbor being shown in elevation. Fig. 2 is a closes said rings and extends inward between
similar view thereof taken in a plane perpen them, as clearly shown in Figs. 1 and 2.
dicular to that shown in Fig.1. Fig. 3 is a plan Referring to Figs. 3, 4 and 5, the ring d is
view of a locking ring to be described. Fig. shown as composed of a flat piece of metal
4 is a cross section thereof on the line a-ac, stamped or otherwise formed into annular
Fig. 3. Fig. 5 is a cross section taken on the shape, the central opening therein being of
line J-2), Fig. 3, and Figs. 6, 7 and S are plan such a diameter as to cause it to closely fit
45 and sectional views of a modified form of ring upon the arbor C. The periphery of the ring
to be referred to. is preferably beveled to an edge, as shown in
Referring to Figs. 1 and 2, I have herein Figs, 1 to 4 and 6, and one or both of its par
shown the roll as composed of a metallic arbor allel surfaces are pricked or burred to form
(t, surrounded by a homogeneous outer cov irregular projections thereon which engage C. Cd
ering or cylinder b of compressed cotton or the fibrous material of the outer covering b
other suitable fibrous material, metallic heads when the latter is compressed upon the ring,
 2 511,606
thus locking the outer covering and the rings diameter of said depression corresponding 35
securely together. To prevent rotation of substantially with that displaced by the rings.
the ring upon the arbor 2, inwardly project By constructing the roll as hereinbefore de
ing lugs b are secured to or form a part of scribed its even balance upon its axis is pre
the ring at opposite sides of the central open served and an extended area of the fibrous
ing, and said lugs are adapted to be received material is engaged by the locking rings.
within longitudinal grooves a” in the arbor. A roll constructed in accordance with my
In the modification shown in Figs. 6, 7 and invention as herein described is not materially
8, the locking ring has a serrated periphery increased in cost, and it is impossible to turn
O to cause it to take a firm hold of the fibrous or twist the outer covering thereof upon the
outer covering, and it is provided with notches arbor under any circumstances, so that the 45
or recesses d to receive a spline formed upon capability and durability of the roll are ma
or Secured to the arbor to lock it thereon. terially increased.
In practice I prefer to utilize a series of I claim
locking rings d located at intervals of several The herein described calender roll, consist
inches upon the arbor, as shown in Figs, 1 ing of an arbor, a series of separated rings
and 2, the outer diameter of said rings being embracing said arbor at intervals between its
Substantially two-thirds. that of the outer cov ends and having a spline and groove connec
ering b, as shown. The rings are applied tion there with, the parallel surfaces of said
successively to the arbor between layers or rings having irregular projections thereon, a
"cheeses' of the fibrous material as the lat homogeneous outer covering of fibrous mate 55
ter is built up upon the arbor, and the press rial surrounding said arbor from end to end
ure exerted upon the said material causes the wholly inclosing said rings and extending in
outer portion thereof beyond the periphery ward between them, and two heads secured
25 of the ring to completely inclose the latter in upon said arbor at each end of and to com
such manner as to present an unbroken sur press said outer covering, said heads each
face at the periphery of the completed roll. having in their inner sides a depression cor
To compensate for the space occupied by the responding in diameter substantially with
rings and to cause the restraining pressure that of said rings, substantially as and for the
exerted by the heads C, C, to be evenly dis purposes described.
tributed throughout the entire cross-sectional HERBERT J. FRINK.
area of the outer covering b, I provide said Witnesses:
heads with a depression C* upon their inner W. H. CHAPMAN,
sides, as clearly shown in Figs. 1 and 2, the S. N. H. DAVIS.