US861888A

US861888A - Calendering-roll.

Info

Publication number: US861888A
Application number: US35046507A
Authority: US
Inventors: John Lewis Perkins
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-01-02
Filing date: 1907-01-02
Publication date: 1907-07-30
Anticipated expiration: 1924-07-30

Description

No. 861,888. PATEZEQ TED JULY 30, 1907. J. L. PERKINS.

GALENDERING ROLL APPLIOATION FILED JAN.2, 1907.

tinrrnn STAES PATENT @FFIGE.

JOHN LEWIS PERKINS, 0F HOLYOKE, MilfiSAOHUSETTS.

GALE NDERING-ROLL.

To all whom it may concrrn:

De known'that I, Join: LEWIS Pnnnms, a citizen of the United States of America, and a resident of llolyokc. in the countyol Hampden and State of l\l-.tssachusetts, hav invented certain new and useful lmprovcinerts in. (.alendciing-Rolls, of which the following is a lull, clear, and exact description,

This inventii'm consists in a calcndering roll constructed substantially as illustrated in the accompanying drawings, and as set forth in the description hereinafter given and pointed out in the claim, forresults and advantages hercinaltcr described and ,explained.

In the drawinga l igure l. is a perspective view of i r a portion of an annular block or cheese, a considerable number of which, in compressed form,"constitute the body of the roll. Fig. 2 is a cross sectional view as taken on line 2-2, of the complete roll shown in Fig. 5, portions of thin layers of the carded cotton being broken away to show the relative arrangement of the -fibers of the adjacent layers. Fig. 3 is a"perspe'ctive view, onan enlarged scale, of a portion of one of the annular blocks or cheeses for niaking additionally clear the relative arrangement of the fibers oithe successive layers. Fig. l is a view similar to Fig. 2, showinga modification in the arrangement without departure from the substantial features thereof, and Fig. 5 is a side elevation of the complete calendering roll with one end portion-thereof shown in ceutrallongitudinal section. v

The roll consists of a central shaft or arbor a and an encircling body I) of cotton having the majority of the libers thereof substantially radially disposed, said body of cotton being, by a hydraulic ram exerting hundreds of tons pressure, compr 'sed to hard condition, th roll, being made or fir bed with a smooth periphery oi uniform character throughout, and susceptible oi having the same uniform character when refinished or turned from time to time after'protracted use, it i. lug particularly emphasized that the majority of the libers of the cotton are throughout the entire body of the roll in endwise presentation to the peripher said calendering roll, furthermore, being provided with metallic end heads bet-ween which the body of the roll is confined in its .hard compression.

In carrying out this invention in the mostpracticable and expeditious manner, I build up annular blocks or

cheeses

10, 10, of sheets, layers or films of cotton carded with the fibers-thereof arranged in parallelism, placing one layer with the lengths of thefibers at a very slight angle, say of 22% degrees, to those of the next,

and so on successively, so that, for instance, every six- Speeification of Letters Patent.

Application filnrliannarj 2,1907. Serial No. 350,465. P v u 3 Patented July so, 1907.

ing therein, is fitted about the roll shaft (1 to which one of the end heads 0 is secured, and this with several other of the so produt'red cheeses are subjected for a suitably longer time to an extremely high hydraulic pressure until the portion ol the b dy of the roll constituted by a given number of cheeses is compressed to a suitably solid and hard condition.

Additional numbers of the annular blocks or cheeses ,the form ollan annulus and offset so that the fibers thereof are arranged at say from 20 to 25 degrees to those of the next, each layer is made of a plurality of segments matched together, preferably with their edges slightly overlapping practically incidental to the make-up of the cheese, the parallel fibers in each segment being radial to the roll axis.

A roll made in accordance with Fig. 4 while directly in pursuance of the principles of my present invention, may'not be so expeditiously produced as one in which the plinth'is built up by layers having the form of an annulus and relatively'disposed, as shown; 'but the roll made substantially as exemplified by Figs. 1, 2 and 3,: of Fig. 4, is one in which the spirit of this. invention is observed and by the following of which a roll of an extremely superior character is produced.

As well known, a calendering machine usually compi ises a staclcof calehdering rolls, a number of which are metallic rolls, while other and. relatively intermediate rolls are those having a non-metallic body. Y

The character or quality of-the resistance of the body of the'non metallic roll is of the utmost importance'for surfacing or finishing paper and cloth.

In some cases rolls having paper bodies are adapt- .ed for a given required quality of finish, while in many other cases alternated calender rolls having hard compressed cotton bodies may, only be em-' ployed', and a cotton body roll has acquired an es-- degree the wearing qualities and satisfactory surfacing capabilities which the present roll possesses.

And notwithstanding that after long use of one of the calender "rolls of the present fabrication it Inayfbe- 'tiai condition of completed manufacture,

come worn v and ,-somewhat untrue, and require to be newly returned and refinished,fthe so refinished roll will be asefiective. and satisfactory as it was-in its ini cottonstrands 16 which may be twisted threads or slivers, or royings; incorporated with thecarded 25 t fibers making up the superposed layers, such sei'ving It has been proposed to construct a roll made up of layers or comparativelytvthin bodiesof cotton, each "layer consisting of a plurality of, or-she'ets of carded cotton, the fibers p11. sheet being parallel,

and each. sheet relatively-to nerctbeing. arranged with its fibers at substant ally-right angles to-those ofthe next, but such a; ro1l;;.so as known; has'hsirer been commercially produced, andflsuch 'roll could not possess, the qualitybi havingithe majority of the fibers thereof in a substantially radial disposition,

for while half of the fibers. will be radial to opposite peiipheral portions of the roll body, another full half of the fibers will" be in sidewiseiinsteadtof endwise presentation to the same given opposite peripheral formity and homogeneity in characterof the roll body "both at its surface and inside thereof as are the aim and accomplishment of this invention. L I

'-We furthermore find it advantageous fo employ as'binders and reinforcement the roll body.

and an encircling body of cotton having the majority of 30 ,its fibers substantially radiallyndisposed, said body of cotton being compressed to hard condition and made with a smooth periphery of uniformrharacter throughout, and relatively to which periphery the majority of "the fibersare in endwise presentation; and the metallic end heads 35 1 between whichthe body of the roll is confined in its hard c0mp.:.ession.

Signed by meat Hoiyoke, Mass, in presenee of two subscribing witnesses.

, LTOHN LEWIS PERKINs.

Witnesses:

WM. S. Bnnnows, G. R. Dnrsconnv